Cross-Reference to Related Applications
[0002]
This application claims priority to Chinese Patent Application No. 201710902184.4 on September 29, 2017 filed in this Chinese patent applications incorporated by reference above disclosure as part of this application.
FIELD
[0003]
The present disclosure relates to an electronic device and a communication method, and more particularly, the present disclosure relates to an electronic device and a communication method for a wireless communication system, scanning the beam (Beam Sweeping) a.
Background technique
[0004]
Using a multiple input multiple output (Multi-Input Multi-Output, MIMO) technology, a wireless communication system, a base station (network side of the system as a communication device or communication node example) and a terminal device (also referred to as user equipment ( UE), as an example of the user-side communication device or communication node system) having a plurality of antennas supporting MIMO technology. Base station antennas and the UE antenna may be formed narrower directivity spatial beam having a stronger power to provide coverage in a specific direction, thus combating the high band (e.g. millimeter wave) channel exists a large path loss. However, since these spatial beams strong directivity and narrow coverage, need to select the appropriate transmit and receive beams from a plurality of transmitting and receiving beams of the base station and the UE in uplink and downlink channel for data and / or control signals transmission.
[0005]
You can select the transmit and receive beams by beam scanning. Specifically, by the base station to the UE downlink beam scanning, beams transmitted on a plurality of base stations transmit a downlink reference signal, and receiving the downlink reference signal with a plurality of receive beams UE may select the strongest base station and the transmit beams strongest received beam of the UE, the downlink channel for data and / or control signals transmitted. Likewise, a UE by the base station uplink beam scan, the base station can select the strongest received beam and transmit beam strongest UE to the uplink channel for transmitting data and / or control signals.
[0006]
SUMMARY
[0007]
It gives a brief summary of the present disclosure hereinafter, in order to provide a basic understanding of some aspects of the present disclosure. However, it should be understood that this summary is not an exhaustive overview of the disclosure. It is not intended to be used or the critical portion of the present disclosure determines an important part of, nor is it intended to limit the scope of the present disclosure. Its sole purpose is to present some concepts in a simplified form on the present disclosure, as a prelude to the more detailed description that is presented later.
[0008]
According to one aspect of the present disclosure, there is provided an electronic device for a first communication device side. The electronic device may include a processing circuit, the processing circuit may be configured to: determine a priori information for a plurality of beam scanning for communication from a first communication device to the second communication device transmitting a first communication device transmission order beam. The processing circuit may be further configured to control the plurality of transmission order in accordance with the determined transmission beam for the beam scan.
[0009]
According to another aspect of the present disclosure, there is provided an electronic device for the second communication device side. The electronic device may include a processing circuit, the processing circuit may be configured to: measure a reference signal transmitted by the first communication device. The processing circuit may also be configured to measure in a case where the reference signal to the first occurrence of the reception quality is above a predetermined threshold value, the reference signal is higher than the predetermined threshold value corresponds to the first device indicating the reception quality of the communication feedback a first transmit beam information communication device.
[0010]
According to another aspect of the present disclosure, there is provided a communication method. The method may include: determining a first communication device for a transmission order of the plurality of beams scan from first communication device to a second communication device in a first communication device based on a priori information transmission beam. The communication method may further comprise: controlling a first communication device to the plurality of transmission order in accordance with the determined transmission beam for the beam scan.
[0011]
According to another aspect of the present disclosure, there is provided a communication method. The method may include: a second reference signal transmitted by the communication device measuring a first communication device. The communication method may further comprise: a reference signal reception quality measured for the first time occurs at greater than a predetermined threshold value, the second communication device is higher than the predetermined threshold value with reference to said first feedback indicating reception quality of a communication device a first transmit beam information communication device corresponding to the signal.
[0012]
According to another aspect of the present disclosure, there is provided a computer-readable storage medium comprising executable instructions, the executable instructions when executed by an information processing apparatus, causes the information processing apparatus to execute the communication method according to the present disclosure.
[0013]
According to the present disclosure one or more embodiments, it is possible to determine the appropriate transmit and receive beams in the beam scan faster, to uplink and downlink channel for transmitting data and / or control signals.
BRIEF DESCRIPTION
[0014]
The drawings constitute a part of the specification, the present disclosure describes embodiments and together with the description serve to explain principles of the present disclosure.
[0015]
Referring to the drawings, the following detailed description, will be more clearly understood from the present disclosure, wherein:
[0016]
FIG 1 is a diagram illustrating the beam scanning procedure in a wireless communication system;
[0017]
FIG 2 is a block diagram illustrating an exemplary configuration of an electronic apparatus side first communication device according to an embodiment of the present disclosure;
[0018]
FIG 3 is an exemplary flowchart of a communication method of the first communication device side shows an embodiment of the present disclosure;
[0019]
FIG 4 is a diagram illustrating an example embodiment of the present disclosure beam training applicable to a wireless communication system is shown;
[0020]
FIG 5 is a schematic diagram illustrating an exemplary embodiment of the present disclosure beam training applicable to a wireless communication system;
[0021]
FIG 6 is a flowchart illustrating an exemplary communication device according to a first embodiment of the present disclosure determines transmission order of the transmit beam;
[0022]
FIG 7 is a schematic diagram illustrating an exemplary embodiment the beam training stage of the two embodiments of the present disclosure;
[0023]
8 is a diagram illustrating exemplary signaling diagram of two embodiments of beam training stage of the present disclosure;
[0024]
9 is a block diagram illustrating an exemplary configuration of an electronic apparatus side first communication device according to an embodiment of the present disclosure;
[0025]
FIG 10 is a flowchart illustrating an exemplary communication method for a first communication device side of the embodiment according to the present disclosure;
[0026]
FIG 11 is a block diagram illustrating an exemplary configuration of an electronic apparatus according to a second embodiment of the communication device-side of the embodiment of the present disclosure;
[0027]
FIG 12 is a flowchart illustrating an exemplary communication method of the second communication device side according to an embodiment of the present disclosure;
[0028]
FIG 13 is a block diagram illustrating an exemplary configuration of an electronic apparatus according to a second embodiment of the communication device-side embodiment of the present disclosure;
[0029]
14 is a diagram illustrating an exemplary flowchart of a communication method of the second side of the communication device according to an embodiment of the present disclosure;
[0030]
15 is a diagram illustrating an exemplary signaling diagram of a recording beam training information based on the number of transceivers beam embodiment according to the present disclosure;
[0031]
FIG 16 is a diagram showing a frame structure according to an example embodiment of a communication of the embodiment of the present disclosure;
[0032]
17 to FIG. 20 illustrates a simulation result according to an exemplary embodiment of the beam training embodiment of the present disclosure;
[0033]
FIG 21 is a block diagram showing a schematic configuration of a first exemplary embodiment of the gNB embodiment of the present disclosure;
[0034]
FIG 22 is a block diagram showing a schematic configuration of a second exemplary embodiment of the gNB embodiment of the present disclosure;
[0035]
FIG 23 is a block diagram showing an example of a schematic configuration of a smart phone embodiment of the present disclosure of the embodiment; and
[0036]
FIG 24 is a block diagram showing an example of a schematic exemplary embodiment of a car navigation apparatus of the embodiment of the present disclosure configuration.
detailed description
[0037]
Now with reference to various exemplary embodiments of the present disclosure will be described in detail with the accompanying drawings. It should be noted: Unless specifically stated otherwise, the relative arrangement of the components and steps otherwise set forth in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present disclosure.
[0038]
Meanwhile, it should be understood that, for convenience of description, the size of various parts shown are not drawn according to the ratio between the actual drawing.
[0039]
Following description of exemplary embodiments of at least one embodiment is merely illustrative and in no way as a disclosure of the present application, or uses of any limitation.
[0040]
In the relevant art known to those skilled in the art, methods and devices may not be discussed in detail, but in appropriate cases, the techniques, methods and apparatus are to be considered as part of the specification.
[0041]
All of the examples illustrated and discussed herein any specific values ​​should be construed as merely illustrative, and not by way of limitation. Thus, other exemplary embodiments of the exemplary embodiments may have different values.
[0042]
It should be noted: like reference numerals and letters refer to similar items in the following figures, and thus once an item is defined in one figure, then the following figures need not be further discussed.
[0043]
For a better understanding of the solution according to the present disclosure, the following brief some wireless communication technologies may be applied to the embodiment of the present disclosure.
[0044]
The base station antennas and the UE having a plurality of supporting MIMO technology. MIMO technology makes use of the base station and UE can exploit the spatial domain to support spatial multiplexing, beamforming and transmit diversity. Spatial multiplexing may be used to transmit different data streams simultaneously on the same frequency. These data streams may be transmitted to a single UE to increase the data rate (SU-MIMO technology can be classified as) or to multiple UE to increase the overall system capacity (MU-MIMO technology can be classified). This is accomplished by each spatially precoded data stream (i.e., for use in the baseband amplitude scaling and phase adjustment) and subsequently transmitted through each of the plurality of transmit antennas at the base station to the UE on the downlink (DL) a spatially precoded stream to achieve. The spatially precoded data streams with different spatial signatures arrive (s) at the UE, so that (s) of each UE UE capable of receiving data streams via the plurality of antennas and recover it to the UE as a destination or more data streams. From the UE to the base station on the uplink (the UL), the UE through each of which a plurality of precoded spatial data streams via transmission antennas, which makes it capable of receiving data streams via the base station of its antenna, and identifies each spatially source precoded data stream.
[0045]
In addition to the baseband spatial precoding, may further adjust the phase of each of the plurality of antennas connected to the radio frequency link using beamforming to transmit respective radio frequency link / reception energy is concentrated in a particular direction so as to improve the signal transmission / reception intensity. Beam mentioned embodiment is mainly formed in this way by the following embodiment of the present disclosure.
[0046]
Next explanation LTE (Long Term Evolution), NR (new radio) radio protocol architecture for the user plane and control plane. For the UE and eNB, gNB radio protocol architecture is shown with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and the physical layer signal processing to implement various functions. The L1 layer will be referred to herein as the physical layer. Layer 2 (L2 layer) above the physical layer and is responsible for the UE and eNB, the link between gNB on the physical layer.
[0047]
In the user plane, L2 layer includes a medium access control (MAC) sublayer, a radio link control (RLC) sublayer, and a packet data convergence protocol (PDCP) sublayer, which are terminated in eNB on the network side, GNB place. UE may have several upper layers above the L2, including the network side is terminated at the network layer (e.g., IP layer) of the PDN gateway and terminating at the other end (e.g., the distal end UE, server, etc. ) application layer.
[0048]
The PDCP sublayer provides multiplexing between different radio bearers and logical channels. PDCP sublayer also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and providing each of the eNB, the handover support between a pair gNB UE. The RLC sublayer provides segmentation and reassembly of upper layer data packets, retransmission of lost-of-order data packets, and reordering of data packets to compensate for the hybrid automatic repeat request (HARQ) reception caused. The MAC sublayer provides multiplexing between logical and transport channels. The MAC sublayer is also responsible for allocating a cell of various radio resources (e.g., resource blocks) among the UE. The MAC sublayer is also responsible for HARQ operations.
[0049]
In the control plane, for the UE and eNB, gNB radio protocol architecture for the physical layer and the L2 layer is substantially the same terms, except that there is no header compression function for the control plane. The control plane also includes a layer 3 (L3 layer) in a radio resource control (RRC) sublayer. The RRC sublayer is responsible for obtaining radio resources (i.e., radio bearers) and for using the eNB, the RRC signaling between the UE and gNB configuring the lower layers.
[0050]
Base station side brief achieve various signal processing functions of the L1 layer (i.e., physical layer). These signal processing functions including coding and interleaving to facilitate forward error correction of the UE (FEC) based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)) to the signal constellation mapping. Subsequently, the encoded and modulated symbols are then split into parallel streams. Each stream is then used together to produce a physical channel carrying time-domain symbol streams with the reference signal. The symbol streams are spatially precoded to generate a plurality of spatial streams. Channel estimation may be used to determine the coding and modulation scheme, as well as for spatial processing. The feedback channel estimate may be derived from a reference signal and / or channel condition transmitted by the UE. Each spatial stream is then provided to a different antenna via separate transmitters. Each with a respective spatial stream transmitter modulates an RF carrier for transmission.
[0051]
At the UE, each receiver receives a signal through its respective antenna. Each receiver recovers information on the carrier modulation to a radio frequency (RF) and provides the information to the various signal processing functions of the L1 layer. In the L1 information layer performs spatial processing to recover any spatial streams destined for the UE. If multiple spatial streams are destined for the UE, then they may be combined into a single symbol stream. The symbol stream is then converted from the time domain to the frequency domain. To recover and demodulate each symbol, and the reference signal to determine the most likely transmitted by the eNB, gNB signal constellation points. These soft decisions may be based on channel estimates. These soft decisions are then decoded and deinterleaved to recover the original signal from the eNB, the data transmitted over a physical channel gNB and control. The data and control signals are then provided to the higher layer processing.
[0052]
Described below in conjunction with FIG. 1 during beam scanning in a wireless communication system. Right arrow in FIG. 1 represents the downlink direction from the base station to the terminal device 1004 of 1000, the left arrow indicates the uplink direction from the terminal apparatus 1004 to base station 1000. As shown, the base station 10 001 comprising n- t_dl downlink transmit beams (n- t_dl is a natural number 1, 1 illustrates as n- t_dl =. 9), the terminal device 1004 includes n- R DL downlink reception beam (n- R DL is natural number greater than or equal to 1, in Example 1 shown in FIG n- R DL =. 5). Further, in the wireless communication system shown in FIG. 1, according to one example, base station 1000 receives uplink beam number n- r_UL and the same beam coverage area of each downlink transmit beams, the terminal device 1004 of the uplink transmission beam number n- t_UL and each beam coverage area receive the same downlink beams. It should be understood, however, system requirements and set up, the base station receives the downlink transmit coverage beams and beams and may vary according to the number of the terminal device as well.
[0053]
1, in the downlink beam scanning process, the base station n of 1000 t_DL downlink transmit beams in a downlink transmit beams (e.g., beam 1002) to the terminal device 1004 n R DL downlink reference signal, the terminal device 1004 by n r_DL downlink reception beam for receiving the n respectively r_DL downlink reference signal. The terminal device 1004 of the n- R DL downlink reference signal is measured (e.g., received signal power measurement of the downlink reference signal (e.g. reference signal received power RSRP), channel quality (e.g., channel quality indicator CQI)), thereby determining the terminal device 1004 strongest received downlink beams. Next, the base station n of 1000 t_dl downlink transmit beams other than the beam e.g. n 1002 t_dl -1 downlink transmit beams n respectively transmitting terminal device 1004 t_dl -1 downlink reference signal, the terminal device 1004 with the determined most strong downlink reception beam which respectively receive the n- t_dl -1 downlink reference signal and measured, to determine the strongest base station 1000 transmit beams.
[0054]
Uplink beam scanning process similar to the process of the downlink beam scanning, by using the terminal device 1004 of n- t_UL uplink and transmit beams of the base station n 1000 r_UL uplink beams for receiving uplink beam scanning, to determine the strongest base station uplink transmission beams and the terminal device 1004 1000 strongest uplink receive beam.
[0055]
It should be understood, the uplink and downlink receive beams emitted beam coverage and may be different number of base stations, uplink transmit beams and the terminal device receiving the downlink coverage and the number of beams may be different, but still above determination operation is similarly performed.
[0056]
After the completion of the downlink and uplink beam scanning beam scanning process, the base station using the determined strongest beam transceiver strongest beam transceiver device and the terminal for transmission of the next data and / or control signals.
[0057]
Above to determine the strongest base station transceiver and the terminal equipment of the beam by beam scanning beam process is also called the training process. The number of beam scanning beam training conducted during training overhead beam can be used to represent. In the beam training process shown in Figure 1, the downlink beam training overhead n- t_dl + n- R DL , uplink beam training overhead n- t_UL + n- r_UL .
[0058]
Further, the beam training procedure different from FIG. 1, in some beam training process, in order to determine the strongest base station 1000 and the terminal device 1004 to send and receive beam, all the base station transceivers need to traverse beams 1000 and 1004 of the terminal device, training costs downlink beams in this case n- t_dl × n- R DL , uplink beam training overhead n- t_UL × n- r_UL .
[0059]
Transmit beam and receive beam base station and the terminal device can be generated by a DFT (Discrete Fourier Transform, Discrete Fourier Transform) vector. Below downlink transmit beams of the base station side described as an example, the uplink beam reception beam, and a transceiver base station side apparatus-side terminal may be produced by a similar method.
[0060]
For example, the base station side, the DFT vector U m may be indicative of a base station downlink transmit beam, expressed as:
[0061]
[Formula 1]
[0062]
[0063]
Wherein, n- T represents the number of the base station with transmit antenna side, O 2 expressed sampling parameters, m = 0,1, ..., O 2 n- T -1.
[0064]
In general, the number of antennas n- T larger, or O 2 , n- T the larger the product, the resulting space is the stronger directional beam, the stronger the beamforming capacity, but also in general, the narrower the beam width. In some embodiments, can take O 2 = 1 and n- T = 1, the thus obtained DFT vectors U m is the n- T elements of all vectors 1.
[0065]
In the beam training process described above, the base station and the terminal device needs to traverse all upstream transceiver and the downstream transceiver beams beams transceiver to select the most appropriate beam. Such a beam training process consumes a lot of system resources, and the system latency is high.
[0066]
The present disclosure proposes a beam training programs based on a priori information, the use of a priori information to determine the order to transmit and receive the order of transmit and receive beams of the scanning beam can be determined more quickly scan the appropriate emission beam and a reception beam. It will be explained based on a priori information beamforming training program according to the present disclosure below with reference to FIGS. 2 to 14.
[0067]
Figure 2 shows a block diagram of an exemplary configuration of the electronic device-side first communication apparatus 2000 according to an embodiment of the present disclosure.
[0068]
In some embodiments, the electronic device 2000 may include a processing circuit 2010. The electronic device processing circuitry 2000 2010 2000 provide various functions of the electronic device. In some embodiments, the electronic device 2000 processing circuit 2010 may be configured to perform a communication method of a first communication device for an electronic apparatus 2000 side.
[0069]
May refer to the processing circuit 2010 performs digital circuitry functions in a computing system, various analog or mixed-signal circuitry (combination of analog and digital) circuitry implemented. Processing circuitry may comprise, for example, such as integrated circuit (IC), such as ASIC circuits (ASIC), a part or a separate processor core circuit, the whole processor cores, a single processor, such as a field programmable gate array (FPGA) programmable hardware devices, and / or a system including a plurality of processors.
[0070]
In some embodiments, the processing circuit 2010 may include a transmission order determination unit 2020 and the beam scan control unit 2030, an electronic device are configured for a first communication device side shown in FIG. 3 described later after executing the communication method 2000 in step S3000 and step S3010.
[0071]
In some embodiments, the electronic device 2000 may further include a memory (not shown). Electronic memory device 2000 may store information generated by the processing circuit 2010 and program data of the electronic device 2010 and operation. The memory may be a volatile memory and / or nonvolatile memory. For example, memory may include, but are not limited to, random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), a read only memory (ROM) and a flash memory.
[0072]
Further, the electronic device 2000 may be implemented at a chip level, or other external member to comprise the device level can also be implemented. In some embodiments, the electronic device 2000 as a whole may be implemented as a first communication device, and may further include a plurality of antennas.
[0073]
It should be understood that the above-described respective units are only implemented depending on the particular function to which the divided logic module, rather than intended to limit the specific implementation. In actual implementation, the above-described respective units may be implemented as a separate physical entity, or may also be implemented by a single entity (e.g., a processor (CPU or DSP, etc.), integrated circuits, etc.).
[0074]
FIG 3 shows an exemplary flowchart of a communication method of the first embodiment of the communication device side according to the embodiment of the present disclosure. Based on the communication method of the beam training priori information, the electronic device may be used, for example, as shown in FIG. 22000.
[0075]
3, in step S3000, the communication device determines a first plurality of beams to scan from a first communication device to a second communication in a first communication device communication device according to a priori information transmission beam launch order. In step S3010, the first communication device to the plurality of control according to the determined transmission order of the transmit beam for beam scanning.
[0076]
In some embodiments, the first communications device is a base station, the second communication device is a terminal device, from a first communication device to the second communication device is a communication downlink communication. In other embodiments, the first communication device is a terminal device, the second communication device is a base station, from a first communication device to the second communication device is a communication uplink communication.
[0077]
In some embodiments, a plurality of a priori information may include the number of transmit beams in a first communication device to be used in data transmission. In some embodiments, the a priori information may include location information of the second communication device.
[0078]
The method may be by a priori information pre-recorded by a first communication device, and the like measured in advance direct access. Priori information may also be acquired by the first communication device based on the feedback of the second communication device. Priori information may also be acquired by the first communication device from another device different from the second communication device. Further, the prior information may be simultaneously recorded in the first communication device and the second communication device side.
[0079]
In the present disclosure beam training programs prior information, the transmission order is determined to be a plurality of beam scanning the transmitted beam in accordance with a priori information, and to transmit the determined order for beam scanning, the beam scanning can be more based on the determine an appropriate transmit beams quickly, for transmission of subsequent data and / or control signals.
[0080]
Figure 4 shows a schematic diagram of an exemplary wireless communication system can be applied in accordance with the beam training program 4000 of the present disclosure. 4, the radio communication system 4000 includes a base station and a plurality of terminal devices 4002 4004. The base station 4002 having a plurality of different emission directions transmit beams 4006 . 1 4006 2 4006 . 3 , and 4006 . 4 . Further, the terminal device 4004 may have one or more receive beams (not shown). A plurality of terminal devices 4008,4010 and 4004 are located in a region 4012, a region 4008 in which the density higher than the density of the terminal device in the region of the terminal device 4010. The base station 4002 may correspond to, for example, with reference to Figure 3 depicts a first communication device, the terminal device 4004 may correspond to, for example, with reference to the second communication device 3 described in FIG.
[0081]
In the communication process in a wireless communication system, the number of base stations in the plurality of transmit beams that are used in data transmission may be different. Especially in non-uniform density distribution terminal apparatus shown in FIG. 4 in a wireless communication system, this difference is more obvious, the number of the terminal equipment transmit beam pointing direction densely distributed more may be employed. The present invention discloses the discovery, such as the a priori information count information to determine the transmission order of the transmit beam in the beam scanning to be performed, such that the more often employed preferentially transmit beam for beam scanning may be recorded so that to determine the appropriate beam scanning can be quickly transmit beams.
[0082]
In some embodiments, the a priori information may include a plurality of transmit beams prerecorded 4006 . 1 4006 2 4006 . 3 , and 4006 . 4 times during data transmission are employed. The base station 4002 is determined based on the a priori information transmission beam 4006 . 1 4006 2 4006 . 3 , and 4006 . 4 transmission order and follow the determined transmission order to perform beam scanning. Hereinafter, sometimes referred to as the a priori information about the number of transmit beams to record information.
[0083]
In some embodiments, the transmission order may be determined a priori beams emitted beam count information, so that the more the number of employed transmit order of the transmit beam front.
[0084]
Table case where the transmission order information determined 1 illustrates a number of transmit beam according to recording. In this example, the transmit beam 4006 . 1 4006 2 4006 . 3 , and 4006 . 4 times the recording information respectively 10,20,25,15 times. The base station 4002 for recording information in descending order according to the number of transmission beam 4006 1 , 4006 2 , 4006 . 3 , and 4006 . 4 transmission order, i.e., transmission beam 4006 1 , 4006 2 , 4006 . 3 , and 4006 . 4 transmission order, respectively 4,2, 1,3. Next, the base station 4002 in accordance with the determined transmission order sequentially transmit beam 4006 . 3 4006 2 4006 . 4 4006 . 1 for beam scanning.
[0085]
Since the transmission beam 4006 . 3 the maximum number of the conventional data transmission adopted, thus beam scanning to be performed, the transmission beam 4006 . 3 is determined to be a suitable maximum likelihood of the transmit beam, thereby scanning the beam faster determine an appropriate transmit beams.
[0086]
[Table 1]
[0087]
[Table 0001]
Transmit beam 4006 1 4006 2 4006 3 4006 4
The number of recorded information 10 20 25 15
Transmission order 4 2 1 3

[0088]
It should be understood that the illustrated transmission order in Table 1 is merely an example, and not limitation, the recording information for determining the transmission order is not limited to the transmission order based on the number of transmit beam herein, the skilled artisan in the teachings of the present disclosure , collation can be designed according to the transmission order priori information communication system according to the actual situation.
[0089]
In some embodiments, the number of transmit beam recording information may include the number of beams in a plurality of transmit data from a base station to a plurality of terminal devices of different cell controlled by the base station are employed. The record number of cell-specific information may be referred to as (Cell-specific) the number of recording information.
[0090]
For example, as shown in Table transmit beam 4006. 1 I (I = l, 2,3 or 4) records the number of information may be transmission beam 4006 I number value is 4008 a plurality of terminal devices employed. The total value to some extent, reflect the distribution terminal apparatus. 4, since the density of the region of the terminal device 4008 (illustrated as terminal apparatus 4) than the density region 4010 and a region 4012 in the terminal device (illustrated as a respective terminal devices) is high, so that the point beam emitting region 4008 4006 2 and 4006 . 3 times employed in the data transmission is higher than a transmit beam directed in other regions.
[0091]
In this embodiment, the number of cells using a dedicated beam training record information, the directivity distribution users transmit beam can be a high-density region to be used for beam scanning, the terminal device can determine the appropriate base station transmit beam faster to use on subsequent data transmissions. Such an embodiment is particularly suitable for user distribution density unevenness wireless communication environment.
[0092]
In some embodiments, the number of transmit beam recording information may include the number of beams in a plurality of transmit data transmitted from the base station to the same terminal device are employed. The recording information may be referred to as the number of UE-specific (UE-specific) the number of recording information. For example, as shown in Table 1. The emission beam 4006 i (i = l, 2,3 or 4) a number of times the recorded information may indicate transmission beam 4006 i times is employed a single terminal device 4004.
[0093]
In this embodiment, the number of times by using UE-specific beamforming training record information, can be targeted optimization of the beam scanning process for each terminal device, the terminal device in particular suitable positions relatively fixed (e.g., working time at the workplace, evening at home) in the terminal device is a scene or a scene fixed position of the IOT smart meters things device. In such a scenario, the number of UE specific information may also be used to select the recording range of the beam to be trained, for example, some of the transmit beam is rarely or never had adopted a particular UE, then the beam can be excluded after some time in the training the transmit beam, i.e., determining a sub-set of the transmit beam for subsequent training, which can further reduce the overhead beam scanning. More preferably, the number of times, transmit beam recording information further includes information about time, for example 24 hours one day is divided into several periods, are recorded as the information in Table 1 for each period, each period to accommodate the characteristics of the location of terminal is located.
[0094]
In some embodiments, the a priori information may be recorded in the base station side. For example, the base station of the transmit beam used for actual data transmission is counted and recorded. In other embodiments, the a priori information may be recorded in the terminal apparatus side, the base station acquires a priori information feedback terminal device. Further, the base station and the terminal apparatus can simultaneously record and maintain a priori information. In some embodiments, each time when a data transfer can be updated prior to the pre-recorded information.
[0095]
Figure 4 illustrates a first communication device is a base station, the second communication device is a beam training method of the present disclosure a wireless communication system downlink communication terminal apparatus 4000 is applicable. It should be appreciated that, in a first communication device is a terminal device, the second communication device is an uplink communication system, a wireless communication base station, according to the present disclosure beam training programs can be similarly applied.
[0096]
In the communication process in a wireless communication system, the terminal device location may influence the selection of the base station transmit beams. Especially in case the number of terminal devices less, more scattered distribution case, a significant impact on the location of the terminal device to select the transmit beam. The present invention disclosed herein found that such location information may be used as a priori information to determine the transmission order of the transmit beam in the beam scanning to be performed, such that the beam is more likely to be used to transmit data communication is preferentially used for beam scanning to determine the appropriate transmission beam in the beam scan faster. FIG 5 described in detail based on the present disclosure beam training program according to the following with reference to the geographic location information.
[0097]
Figure 5 shows an exemplary schematic diagram of a wireless communication system applicable to 5000 in accordance with the present disclosure beam training programs. As shown in FIG. 5, the radio communication system 5000 includes a base station and a plurality of terminal devices 5002 5004. The base station 5002 having a plurality of different emission directions transmit beams 5006 of . 1 , 5006 of 2 , 5006 of . 3 , 5006 of . 4 and 5006 of . 5 . The terminal device 5004 may be located at a certain position, and having one or more receive beams (not shown). The base station 5002 may correspond to, for example, with reference to Figure 3 depicts a first communication device, the terminal device 5004 may correspond to, for example, with reference to the second communication device 3 described in FIG.
[0098]
In some embodiments, the a priori information may include location information of the terminal device 5004. 5002 base station location information is determined based on the transmission beam 5006 of . 1 5006 2 , 5006 of . 3 , 5006 of . 4 and 5006 of . 5 transmission order and follow the determined transmission order to perform beam scanning.
[0099]
In some embodiments, the transmission order may be determined according to the geographic location information transmitted beam, such that the direction toward the closer the transmission order of the transmit beam location information indicates the location of the front.
[0100]
5, from the base station to the terminal apparatus 5002 5004 5008 dotted arrow indicates the direction of pointing the terminal device location 5004. In some embodiments, 5008 may be in accordance with the proximity of the pointing direction of the transmit beam directed in the direction of the arrow, so that the direction toward the closer the transmission order of transmit beams broken line arrow direction of the front 5008, 5006 sequentially transmit beam . 3 , 5006 2 , 5006 of . 4 , 5006 of . 1 , 5006 of . 5 for beam scanning. In other embodiments, it is possible to determine the direction of arrow 5008 pointing closest transmit beam, then the beam is emitted to both sides of the intermediate beam sort beam, followed by pressing the transmit beam for the scan order.
[0101]
In the present example, since 5006 the transmit beam 3 directed in the direction closest to the location of the terminal device, so the beam scanning to be performed, transmit beam 5006 3 the highest probability is determined to be appropriate transmit beam so that the beam scans you can quickly determine an appropriate transmission beam.
[0102]
In some embodiments, the base station 5002 to the terminal apparatus 5004 according to the geographic location information, determining a candidate set of beams emitted, wherein the candidate transmit the transmit beam within a large set of beams is determined to be appropriate transmission beam in the beam scanning possibilities small, outside the transmit beam is determined candidate set of beams in the beam scan transmit beam is a suitable possibilities.
[0103]
For example, as shown in FIG. 5, may be directed to the arrow pointing in the direction of deviation of 5008 within a predetermined threshold θ range (within the dotted lines in FIG. 5) {transmit beam 5006 of 2 , 5006 of . 3 , 5006 of . 4 } as a candidate transmit beam set. For the transmit beam within the candidate set of beams, transmission order may be determined as described above according to the geographic location of the terminal device. For the transmit beam other than the candidate set of beams, beam scanning may not be used. Thus, it is possible to reduce the number of the transmit beams for the beam scanning, thereby reducing the overhead beam training. After addition, the beam may be other than the candidate set of all ordered transmit beam within the transmit beam of the candidate set of beams.
[0104]
In some embodiments, the predetermined threshold value θ can be adjusted according to the accuracy of the geographic location of the terminal device. When the low accuracy location of the terminal device, the predetermined threshold value θ may be set smaller in order to narrow the range of candidate transmit beam set, thereby reducing the overhead beam training. When the low accuracy location of the terminal device, the predetermined threshold value θ may be set to be large in order to expand the transmission range of the candidate set of beams, thereby ensuring able to determine appropriate transmission beam in the beam scanning process.
[0105]
In some embodiments, the present disclosure according to the geographic location information beam training programs may be applied to the beam training process in the vertical direction. For example, the pointing direction of the transmit order of the transmit beam is perpendicular to the ground the front. Since the actual wireless communication system, a user distribution in the vertical direction is more concentrated on the ground, thus performing such beam emitted beam training can be determined quickly in the vertical direction.
[0106]
In some embodiments, the geographic location information may be acquired by a GPS terminal device positioning system. In other embodiments, the macrocell base station via the low frequency control apparatus acquires the terminal position information signal, micro cell base station via the backhaul link (e.g., a millimeter wave backhaul) obtains the location information of the terminal apparatus from the macro cell, thereby determining the order of the plurality of transmit beams emitted beam scanning to be performed in the base station based on the location information.
[0107]
It should be understood that acquires location information of the terminal device is not limited to the described embodiment of the present invention, the terminal apparatus may acquire location information by other methods.
[0108]
Figure 5 illustrates a first communication device is a base station, the second communication device is a beam training method of the present disclosure a wireless communication system downlink communication terminal apparatus 5000 is applicable. It should be appreciated that, in a first communication device is a terminal device, the second communication device is an uplink communication system, a wireless communication base station, according to the present disclosure beam training programs can be similarly applied.
[0109]
Figures 4 and 5 depict a priori information is the number of the transmit beam and the information recording above with reference to the geographic location information. According to some embodiments of the present disclosure, a priori information may include the number of transmit beams of recording information and geographic location information of both. Hereinafter, FIGS. 5 and 6 embodiment is based on feeding the recording beam and the frequency and geographical location information to determine the order of the transmit beam emitted described drawings.
[0110]
FIG 6 shows a flowchart of an exemplary communication device according to a first embodiment of the present disclosure determines transmission order of the transmit beam. For example the first communication device, for example corresponding to the second communication device and the terminal device 5004 of FIG. 5 corresponds to the base station 5002 in FIG. 5.
[0111]
In step S6000, the base station 5002 to determine the deviation and the geographic location of the point of location information is less than a predetermined threshold value indicated by location information of a terminal device 5004 (e.g., a deviation direction is smaller than [theta]) of one or more transmitters beam. 5, one or more transmit beams to emit the determined set of beams {5006 of 2 , 5006 of . 3 , 5006 of . 4 }.
[0112]
In step S6010, the base station according to the transmit beam set {5006 of 2 , 5006 of . 3 , 5006 of . 4 } times for each transmit beam in the recording information for determining the transmission order for each transmission beam emitted beam set. In some embodiments, the base station may record information according to the number of transmit beams determines the transmission order of the transmit beam of the transmit beam set. For example, the base station may transmit the order of many times of the transmit beam adopted the more forward arrangement. In other embodiments, the base station may determine a transmit order of the transmit beams in the set of transmit beam based on location information of the terminal device. For example, the base station transmission order may be closer to a direction pointing arrow pointing in the direction of the transmission beam 5008 arrangement of the more forward.
[0113]
In step S6020, the base station determines the transmission order of the transmit beam emitted outside the set of beams. In some embodiments, the base station may not transmit the transmit beam set of beams other than sort, i.e. without the use of these transmission beam for beam scanning. In other embodiments, the base station may transmit the transmit beam set of ordered other than the beam emission after all beams within the transmit beam set. Furthermore, the transmission order of the transmit beam set other than the transmission beam, information can be recorded on the transmission order of these transmit beams sort, sort may be performed on the transmission order of these transmit beams according to the geographic location information based on the number of transmit beams.
[0114]
Above with reference to FIG. 4 to FIG. 6 depicts an embodiment of the transmit beam transmission order determined in accordance with a priori information. After the firing sequence is determined, the first communication device performs control to transmit the determined order in accordance with the beam scanning for the plurality of transmit beams.
[0115]
In some embodiments, the first communications device transmission order in accordance with the determined adjustment time sequentially a plurality of transmit beams are transmitted, so that the front of the sequence of transmit beams to be transmitted. Further, the first communication apparatus can adjust the time-frequency resources occupied by each transmit beam in accordance with transmission order. In some embodiments, for each target beam to be transmitted, a first multi-antenna communication apparatus can adjust the phase shifter for generating a phase value combinations of the target beam on the target emission frequency resources and adjustment beam for beam scanning.
[0116]
According to some embodiments of the present disclosure, communication may be synchronous phase from the first communication device to the second communication device, according to the determined transmission order to transmit a plurality of beams for beam scanning. Beam training hereinafter referred to as a synchronization phase carried out in the synchronization beam training stage.
[0117]
Downlink synchronization phase, the base station may transmit the plurality of transmit beams using a plurality of downlink synchronization signal (Synchronization Signal, SS) to the cell in the plurality of terminal devices to perform downlink synchronization. The plurality of downlink signals to form a downlink SS SS Block (Block SS), SS Block downlink can cover the entire range of cell. In some embodiments, the base station may transmit the plurality of downlink signals SS to the plurality of terminal devices in a cell with a plurality of transmission beam in accordance with the determined transmission order, thereby performing the downlink synchronization beam training stage.
[0118]
Uplink synchronization phase, the terminal apparatus may synchronize with the base station via an uplink physical uplink random access signal (PRACH). In some embodiments, the terminal device may transmit the determined transmission order in accordance with a plurality of the PRACH transmission beam to the base station, thereby performing uplink synchronization beam training stage.
[0119]
According to some embodiments of the present disclosure, the data transfer phase can be in communication from a first communication device to the second communication device, according to the determined transmission order to transmit a plurality of beams for beam scanning. Beam training performed hereinafter referred to as a data transmission phase the data transfer phase beam training.
[0120]
In downlink data transfer phase, the base station may send the CSI-RS to each terminal device (Channel State Information Reference Signal: channel state information reference signal) to measure the downlink channel state. In some embodiments, the base station may send the CSI-RS to the terminal device using a plurality of transmit beams according to the determined transmission order, to perform downlink data transmission beam training stage.
[0121]
Uplink data transfer phase, the terminal device to the base station may transmit a SRS (Sounding Reference Signal: Sounding Reference Signal) for measuring uplink channel quality. In some embodiments, the terminal device may transmit an SRS to the base station according to the determined transmission order so as to perform the uplink data transmission beam training stage.
[0122]
According to an embodiment of the present disclosure, the beam training synchronization phase and data transfer phase can be performed alone or in combination. In some embodiments, the beam training stage after the synchronization, the data transfer phase can be performed using the results of the beam training stage beam training synchronization. Such a beam training hereinafter referred to as a two-stage beam training. 7 and 8 will be described in detail with reference to FIG two beam training stage according to the present disclosure.
[0123]
FIG 7 illustrates an exemplary schematic diagram of a two-stage beam training. As shown in FIG 7, the base station 7002 to synchronize transmission beam crude beam training stage, using a fine beam for data transmission beam training stage. Further, for simplicity of illustration, FIG. 7 depicts the terminal device is omitted.
[0124]
FIG 8 illustrates an exemplary signaling diagram of two beam training stage, wherein the step S8000 ~ S8020 are synchronized beam training stage, steps S8030 ~ S8050 beam training data transfer phase.
[0125]
In the beam training synchronization phase, in a step S8000, the base station 7002 determines the transmission order of the plurality of transmit beams crude beam scanning phase synchronization for the base station 7002 in accordance with a priori information cell. In some embodiments, a priori information for the cell may comprise a cell-specific frequency and geographical location information of the recording information and / or cell terminal device.
[0126]
In step S8010, the base station 7002 in accordance with the beam scanning stage synchronized to the determined transmission order, using the plurality of coarse transmit beams. In some embodiments, a plurality of base station 7002 can transmit a plurality of downlink transmit beams coarse synchronization signal to the plurality of terminal devices within a cell, for synchronization stage beam scanning.
[0127]
The above steps S8000 and S8010 may correspond to the steps described above with reference to FIG. 3 S3000 and S3010, respectively.
[0128]
In step S8020, the terminal device crude feedback optimal transmission beam to the base station. In some embodiments, the downlink synchronization signal to the terminal device is measured, and feedback optimal transmission beam based on the measurement results of the crude. Shown in FIG. 7 by the terminal device feedback to the base station 7002 and most crude transmit beam 7004.
[0129]
In the beam training data transfer phase, the base station using beam scanning beam training synchronization phase the determined optimum transmit beam emission fine coarse the range of beam 7004 will be.
[0130]
Specifically, in step S8030, the base station 7002 according to the data transfer phase is determined optimum beam scanning a plurality of fine coarse transmit beam in the range of 7004 for the a priori information terminal device transmit beam firing sequence. In some embodiments, a priori information for the terminal device location information may include recording the number of UE-specific information and / or the second terminal device.
[0131]
In step S8040, the base station 7002 using the plurality of transmit beams fine beam scan data transfer phase according to the determined transmission order. In some embodiments, base station 7002 can transmit a plurality of thin beams CSI-RS transmission to the terminal device, the data transfer phase for beam scanning.
[0132]
The above steps S8000 and S8010 may correspond to the steps described above with reference to FIG. 3 S3000 and S3010, respectively.
[0133]
In step S8050, the terminal device and feedback optimal transmission beam to the small base station. In some embodiments, the terminal equipment CSI-RS measurement, feedback optimal fine beam emitted from the measurement results. Shown in FIG. 7 by the terminal device optimal fine feedback to the base station 7002 transmit beam 7006.
[0134]
7 and FIG. 8 illustrates a downlink communication during the beam training stage of the two. It will be appreciated, may be used in an uplink communication beam training stage according to two embodiments of the present disclosure. In uplink communication, the terminal device may use a plurality of transmit beams transmitted PRACH coarse synchronization phase beam scanning is performed, to determine the optimum transmit beam crude. Next, the plurality of terminal devices using the optimum fine coarse range transmission beam transmitted SRS transmission beam for data transmission beam scanning stage, to determine the optimum transmit beam fine.
[0135]
Further, in the synchronization phase, the number of the transmit beam is usually less thick, in the system overhead and delay allowed, may not be performed but rather traditional beam training beam training as shown in FIG. 1. In the data transfer phase, a transmission phase beam training data based on the result of the conventional beam training synchronization phase.
[0136]
9 illustrates a block diagram of an exemplary configuration of the electronic device 9000 side of the first communication device according to an embodiment of the present disclosure.
[0137]
In some embodiments, the electronic device 9000 may include a processing circuit 9010. The electronic device processing circuitry 9000 to 9010 provide various functions of the electronic device 9000. In some embodiments, the electronic device processing circuitry 90109000 may be configured to perform a communication method of a first communication device for an electronic device 9000 side.
[0138]
Compared with the electronic device 2000 described above with reference to FIG. 2, except that it further includes a feedback information acquisition unit 9040 and the data transfer control unit 9050 other than the same configuration of the electronic device 9000 other electronic devices 2000, wherein the transmission order determination unit 9020 and the beam scanning control unit 9030 of FIG. 2 correspond to the transmission order determination unit 2020 and the beam scan control unit 2030. In some embodiments, the transmission order determination unit 9020, a beam scanning control unit 9030, a feedback information acquisition unit 9040 and the data transmission control unit 9050 are arranged to the side for a first communication device 10 shown in FIG described later is executed step communication method of the electronic device 9000 in S10000 ~ S10030.
[0139]
FIG 10 illustrates an exemplary flowchart of a communication method of the first embodiment of the communication device side according to the embodiment of the present disclosure. The communication method may be an electronic device 9000 shown in FIG. 9 to FIG.
[0140]
FIG step S10010 10 S10000 and respectively correspond to FIG. 3 described with reference to steps S3000 and S3010, it is not repeated here.
[0141]
In step S10020, the first communication device from a second communication device acquires feedback information, the feedback information indicative of said first communication device a first plurality of transmit beams emitted beam, wherein the second communications device the reception quality of reference signals transmitted by the first transmit beam above a predetermined threshold μ. In step S10030, the first communication device controls to transmit the first data transmission beam used for communication.
[0142]
In this embodiment, it is not necessary to scan all transmit beams to determine the appropriate transmission beam to be used for communication data transmission can be improved beam scanning speed and reduce system latency.
[0143]
In some embodiments, the predetermined set can be a reasonable threshold value [mu], to dynamically adjusting between the beam training overhead and beamforming gain. When the predetermined threshold is set higher μ, the first emitter feedback beam may be optimal transmission beam. Accordingly, a first feedback beam scanning beam required for transmitting the overhead will be larger. When the predetermined threshold is set low μ, the first emitter feedback beam may not be optimal transmission beam, but the beam can be used to meet the available services required reception quality. Accordingly, such a feedback beam scanning beams first transmit the overhead required will be smaller.
[0144]
Further, when the first communication apparatus using n- T transmit antennas to provide n- T orthogonal beamforming when transmitting, by selecting an appropriate predetermined threshold value μ can obtain the optimal transmission beam. However, when the oversampling occurs, i.e., n- t transmit antennas to provide more than n- t (n-example, when 4-times oversampling transmit beams t transmit antennas provided 4N t when the transmit beam), selecting a predetermined threshold value μ generally unable to give the optimum transmit beam, but the beam can be obtained to meet the available transmission for the service required reception quality.
[0145]
In some embodiments, the predetermined threshold μ may be determined by the second communication device. For example, according to the second communication device when the communication channel is determined to satisfy the predetermined reception quality threshold μ own needs. In other embodiments, the predetermined threshold μ may be notified to the second communication device by the first communication device. For example, the first communications device is a base station, the second communication device is a terminal device, according to a plurality of terminal devices in a cell, each terminal apparatus notifies the base station by a predetermined threshold μ.
[0146]
In some embodiments, depending on the communication of the first communication device to the second communication device is a downlink communication or uplink communication, the communication is a communication or data transmission phase synchronization phase of the reference signal transmitted by the first transmit beam can be a SS , PRACH, CSI-RS, SRS of one. Further, the reference signal is not limited to the types listed above, those skilled in the art according to the actual situation of the wireless communication system to use different reference signals.
[0147]
Table shows the case where the second communication device to transmit reference signals transmitted by different transmission beams to the first order communication device receiving the reception quality in Example 2. The reception quality of the reference signal is assumed that the predetermined threshold value μ = 1, the second communication device on the transmission order of "2" transmit beam Q = 1.1> predetermined threshold μ, the transmission order is "2" transmit beam is determined as a first transmit beams, a first communication device to send feedback information for indicating a first transmit beam.
[0148]
[Table 2]
[0149]
[Table 0002]
Transmission order 1 2 3 4
Reception quality Q 0.8 1.1 1.2 0.5

[0150]
In some embodiments, the feedback information may include information indicating a first transmission order of the transmit beam, for example, a first transmit beam transmission order shown in Table 2 in the "2." The feedback information may further include information indicating the index of the first transmit beam. For example, referring to Table 1 that the transmission order is "2" transmit beam is 4006 2 , the feedback information may comprise the transmit beam 4006 2 index information. Feedback information may further include information indicating a first transmit beam (e.g. transmit beam 4006 2 ) information corresponding to antenna ports. Further, the feedback information may further include information indicating a first transmit beam (e.g. transmit beam 4006 2 ) of the CSI-RS resource indicator (CSI-RS Resource Indicator: CRI ).
[0151]
In some embodiments, the reception quality of the second communications device by transmitting a reference signal in order to transmit a first transmit beam before the beam transmitted is below the predetermined threshold μ. For example, as shown in Table 2, the reception quality of the first reference signal is greater than a predetermined threshold value μ = 1, the transmission beam corresponding to the reference signal (transmission order is "2") as the first transmit beam, and the first a communication device for feedback.
[0152]
In some embodiments, when the first communication apparatus acquires the feedback information from the second communication device, the first communication device stops scanning beam. In this embodiment, the first communication device may transmit a first beam for data transmission, without the need for continued use of the other beam scanning the transmitted beam, thereby reducing the overhead beam training. Because transmission order of the transmit beam is determined according to a priori information, the reception quality of the reference signal sequence transmitted forward transmit beam transmitted by a greater possibility of the reception quality of the reference signal after the transmit beam transmission ratio transmission order, even if the rest of the scanning beam do not transmit the reference signals used in determining the transmit beam corresponding to the reception quality is above a predetermined threshold value, it is possible to use the basic guarantee of the quality rank order is more forward transmission beam.
[0153]
In other embodiments, when the first communication apparatus acquires the feedback information from the second communication device, the first communication device to continue beam scanning. For example, the first communications device is a base station, the second communication device is a terminal device, when the base station obtains the feedback information from a terminal device, the base station may continue to scan the beam by the other terminal devices in the control cells.
[0154]
In some embodiments, the emission order may be used in the second transmit beam emitted beam before the first transmit beams as an alternative transmission beam for beam switching, wherein the second communication device to the second transmit beam after reception quality of the reception quality of the first transmit beam. For example, Table 2 in FIG transmission order is "1" as a second transmit beam transmit beam, the transmit beam for beam switching alternatively, "2" to the first transmit beam can not be emitted in the normal use of the order switch between a case where the second emission beam.
[0155]
In some embodiments, when a plurality of receive beams of the second communication device receives the optimal quality of the reference signal transmitted by the first communication device is higher than the predetermined threshold value [mu], the first communications device with the corresponding reference signal determining a first transmit beam is a first communication device to transmit beams feedback. This embodiment is suitable for a wireless communication system according to the open area (e.g., a base station communicating with UAV), wherein the line of sight channel between a first communication device and the second communication device is a main scene.
[0156]
In some embodiments, when a plurality of receive beams of the second communication device the average reception quality of a reference signal transmitted by the same transmit beam of the first communication device is higher than a predetermined threshold value [mu], the transmit beam is determined as a first emission a first communication apparatus and the feedback beam. Apply to the non-open area of ​​the wireless communication system of this embodiment, wherein the non-line of sight communication channel between a first device and a second communication apparatus as a main scene, in such a wireless communication system, the second mobile communications device may frequently rotation Wait.
[0157]
Above with reference to FIG. 2 to FIG. 10 illustrates an embodiment using a priori information based beamforming training program disclosed in the first communication device side. The present disclosure further beam training programs can be used for the second communication device side, next 14 will be specifically described with reference to FIG. 11 to FIG.
[0158]
FIG 11 illustrates a block diagram of an exemplary configuration of the electronic device 11,000 side second communication device according to an embodiment of the present disclosure.
[0159]
In some embodiments, the electronic device may include a processing circuit 11000 11010. The electronic device processing circuitry 11 000 11 010 11 000 provides various functions of the electronic device. In some embodiments, the electronic device processing circuitry 1101011000 may be configured to perform a communication method for an electronic apparatus side second communication device 11000.
[0160]
11010 may refer to the processing circuit performs the digital circuitry functions in a computing system, various analog or mixed-signal circuitry (combination of analog and digital) circuitry implemented. Processing circuitry may comprise, for example, such as integrated circuit (IC), such as ASIC circuits (ASIC), a part or a separate processor core circuit, the whole processor cores, a single processor, such as a field programmable gate array (FPGA) programmable hardware devices, and / or a system including a plurality of processors.
[0161]
In some embodiments, the processing circuit may include a measuring unit 11010 11020 11030 and a feedback unit, are arranged to the communication method steps a second communication device for an electronic apparatus side shown in FIG. 12 described later after execution of 11,000 S12000 and step S12010.
[0162]
In some embodiments, the electronic device may further include a memory 11000 (not shown). The electronic device 11000 may store information and a program memory and data for operating the electronic device 11010 11010 produced by the processing circuit. The memory may be a volatile memory and / or nonvolatile memory. For example, memory may include, but are not limited to, random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), a read only memory (ROM) and a flash memory.
[0163]
Further, the electronic device 11,000 can be realized at a chip level or at the device level may also be achieved by including other external components. In some embodiments, the electronic device 11000 may be realized as a whole as a second communication device, and may further include a plurality of antennas.
[0164]
It should be understood that the above-described respective units are only implemented depending on the particular function to which the divided logic module, rather than intended to limit the specific implementation. In actual implementation, the above-described respective units may be implemented as a separate physical entity, or may also be implemented by a single entity (e.g., a processor (CPU or DSP, etc.), integrated circuits, etc.).
[0165]
FIG 12 illustrates an exemplary flowchart of a communication method according to a second embodiment of a communication device side of the embodiment of the present disclosure. The communication method may be used, for example, an electronic device 11000 shown in Figure 11.
[0166]
As shown, in step S12000, the reference signal measuring the second communication device transmitting a first communication device 12. A first communication signal corresponding to the reference case in step S12010, a reference signal reception quality measured first occurrence is above a predetermined threshold μ, μ is above a predetermined threshold to the first device indicating the reception quality of the communication feedback information transmitting beam device.
[0167]
For example, in one example, as described in Table 2 described with reference to, when the reception quality of the reference signal to the transmission order is "2" transmit beam Q = 1.1> predetermined threshold value μ = 1, the feedback of the transmit to the first communication device order information is "2" transmit beam.
[0168]
In some embodiments, the second communication device in the case where the received quality of the first reference signal is above a predetermined threshold μ, the second communication apparatus may stop receiving a reference signal transmitted by the transmit beam of the first communication device. For example, the second communication apparatus may stop transmission order received is "3", the reference signal "4" of the transmit beams. According to this embodiment, the second communication device may not necessarily receive all signals transmitted reference beam transmitted beam scanning process is complete, thereby reducing the overhead beam training.
[0169]
After the transmit beam emitted beam in some embodiments, the second communication device without waiting for the reception quality is above a predetermined threshold value μ of the first communications device corresponds to a reference signal, i.e., feedback. In this embodiment, the second communication apparatus reception quality of the first reference signal is above a predetermined threshold value [mu], to feedback to the first communication device (e.g., without waiting for the order to emit emission order "2" is after "3 "," 4 "transmit beam, to feedback transmission order is" 2 "transmit beam), a first communication device can receive feedback from the second communication device before the end of the beam scanning, thereby performing the corresponding process in advance.
[0170]
In some embodiments, the second communication device is not feedback information indicating the reception quality is greater than the transmit beam after the beam of the first communication device transmitting a reference signal corresponding to a predetermined threshold value of μ. For example, the second communication device to the first communication device can not transmit feedback information for the order, "3", "4" transmit beam, even if the reception quality of the reference signal on the transmission order of "3" is higher than a transmit beam transmitted transmission order is "2" transmit beam. By setting the predetermined threshold value [mu] rational, after finding the transmit beam corresponding to the reference signal and the reception quality is above a predetermined threshold value [mu] can be determined that the transmission beam can meet the service needs, it can no longer be fed back to the transmission beam to the first communication device other transmit beam after.
[0171]
In some embodiments, the first communications device is a base station, the second communication device is a terminal device, from a first communication device to the second communication device is a communication downlink communication. In other embodiments, the first communication device is a terminal device, the second communication device is a base station, from a first communication device to the second communication device is a communication uplink communication.
[0172]
According to the present embodiment of the present disclosure may be used in accordance with the present disclosure beam training programs based on prior information, prior information received to determine the order of the second plurality of communication devices receive beam at the second communication device side, it is possible in in determining an appropriate beam scanning receive beam faster. Below with reference to FIGS. 13 and 14 will be specifically described.
[0173]
13 illustrates a block diagram of an exemplary configuration of the electronic device 13,000 side second communication device according to an embodiment of the present disclosure.
[0174]
In some embodiments, the electronic device may include a processing circuit 13010 13,000. The electronic device processing circuit 13000 13010 13000 provides various functions of the electronic device. In some embodiments, the electronic device processing circuitry 1301013000 may be configured to perform a communication method for an electronic apparatus side second communication device 13000.
[0175]
The electronic device as compared with the electronic device 11,000 13,000 described hereinabove with reference to FIG. 11, except that the order determining unit further comprising receiving a reference signal receiving unit 13040 and 13050 than, the same as other configurations of the electronic device 11,000, wherein the feedback unit and the measuring unit 13020 13030 11 respectively correspond to the measuring unit of FIG. 11020 and 11030 feedback unit.
[0176]
In some embodiments, the measurement unit 13020, 13030 feedback unit, receives the order determining unit 13040 and a reference signal receiving unit 13050 are configured as an electronic device for the second side of the communication apparatus shown in FIG. 14 described later is executed 13000 the communication method step S14000 ~ S14030.
[0177]
14 illustrates an exemplary flowchart of a communication method according to a second embodiment of a communication device side of the embodiment of the present disclosure. The communication method may be an electronic device 13000 shown in FIG 13 is used.
[0178]
FIG step S14010 14 S14000 and respectively correspond to the steps described with reference to FIG. 12 S12000 and S12010, are not repeated here.
[0179]
In step S14020, the second communication device to determine a reference signal transmitted by the first communication device receives the order of the second communication device receiving a plurality of receive beams in accordance with a priori information. In step S14030, the second communication apparatus performs control so that the plurality of receive beams receives a reference signal determined in the order received.
[0180]
The method may be a priori information by the second communication device through the pre-recorded, and the like measured in advance direct access. Priori information may be notified from the first communication device to the second communication device. Priori information may also be acquired by the second communication device from another device different from the first communication device. Further, the prior information may be simultaneously recorded in the first communication device and the second communication device side.
[0181]
According to an embodiment of the present disclosure, to determine the reference signal transmitted by the first communication device receives a plurality of the order received by the receiving beam, and to receive the determined order receiving a reference signal, the beam can be scanned in accordance with a priori information more quickly determine an appropriate reception beam.
[0182]
In some embodiments, the number of a priori information may include a plurality of receive beams prerecorded data transmission are employed. Hereinafter, sometimes referred to as the a priori information of the reception beam number information is recorded.
[0183]
In some embodiments, the received information may be recorded to determine the order of the reception beam, such that the more the number of times is employed to receive the forward order received beam according to the number of receive beams.
[0184]
Table reception order information determined 3 illustrates a number of records in accordance with the received beam. Reception beams R & lt . 1 ~ R & lt . 4 times the recording information respectively 10,20,25,15 times. Recording the second communication device receiving the beam receiver are arranged in descending order of 1 to 4, i.e., the beam receiver receives the order of 1 to 4 are in accordance with the number of times 4,2,1,3. Subsequently, the second communication device receives a reference signal received sequentially according to the determined order.
[0185]
[table 3]
[0186]
[Table 0003]
Receive beam r 1 r 2 r 3 r 4
The number of recorded information 10 20 25 15
Receiving order 4 2 1 3

[0187]
Via the beam training programs, the more the number of receive beams can be adopted earlier be used to receive a reference signal, it is possible to determine an appropriate reception beam faster.
[0188]
It should be understood that the order received in Table 3 shown is merely an example, and not limitation, the number of reception beam based on the received order information record is not limited to receiving the determined order described herein, the skilled artisan in the teachings of the present disclosure possible collation order received according to the actual situation according to the prior information communication system design.
[0189]
Further, the above number of times the recording beam emitted beam emitted communication device described in the first description information is also the number of the second communication device receives the beam may be adapted to record information.
[0190]
In some embodiments, can utilize beamforming training programs based on a priori information in accordance with the present invention, respectively, a first side and a second communication device communication device side. In the first communication device side, a plurality of transmit beams according to the transmission order determined based on a priori information to the second communication device transmits a reference signal in the second communication device side, a plurality of receive beams according to the received order based on the determined a priori information to receiving a reference signal from the first communication device. With such an approach, it is possible to determine the appropriate transmit and receive beams in the beam scan faster.
[0191]
In some embodiments, the a priori information may include transmit beam prerecorded - reception beam during data transmission times are used to (hereinafter referred to as a "transceiver beam pair"). Hereinafter, sometimes referred to as the a priori information of the recording beam frequency transceiving information.
[0192]
FIG 15 shows an exemplary signaling diagram of a recording beam training information based on the number of transceivers beam embodiment according to the present disclosure.
[0193]
As shown in FIG. 15, in step S15000, the base station determines the transmission order information is recorded a plurality of beam scanning beam to be emitted in the base station based on the number of beams in the transceiver. In some embodiments, the transmit order of the transmit beam, the more the number of times is employed in the data transmission beams may be arranged on the more front.
[0194]
In one example, the transmit beam is assumed that the base station T . 1 , T 2 , T . 3 and T 4 , the terminal device receives beams of R & lt . 1 and R & lt 2 , the number of beams of recording information transceiver as shown in Table 4 below. In Table 4, T I -R & lt J beam pair (i = 1,2,3,4, j = 1,2 ) indicates the number of information recording T I -R & lt J number of beams in the data transmission is employed. As shown in Table, T. 4 . 3 -R & lt 2 beam the maximum number of recording information, may be transmitted beam T . 3 transmission order are arranged in front.
[0195]
[Table 4]
[0196]
[0197]
In step S15010, the base station uses multiple transmit beams according to the determined transmission order to the terminal device transmits a reference signal to perform beam scanning.
[0198]
In step S15020, the terminal device records information based on the number of beams to determine a transceiver for receiving a reference signal sequence received by a plurality of receive beams. For example, the transmit beam is received by t 3 the reference signal is transmitted, the terminal device may transmit beam t is 3 times of the transceiver beam recording information (i.e., t 3 -R & lt . 1 times the recording information 12, t 3 - R & lt 2 times the recording information is 8), the larger the number of recorded information reception beam R & lt 2 rows in the received beam R & lt . 1 for receiving a reference signal before.
[0199]
In some embodiments, the sequence may notify the terminal apparatus receive beams that should be used by the base station to the terminal device. In this case, the terminal device can not record the number of maintenance and beam for recording information on a transceiver to receive a reference signal in the order received by the base station notifies the beam. In other embodiments, the number of maintenance can simultaneously record and send and receive beam pair information recorded in the terminal and the base station apparatus side.
[0200]
In step S15030, a plurality of receive beams receives a reference signal received in accordance with the determined order.
[0201]
The method shown in FIG. 15, the beam using a beam transceiver information recording performed on the beam training can quickly determine the appropriate beam to the transceiver, for transmitting subsequent data and / or control signals.
[0202]
It will be appreciated, the recording shown in FIG 15 based on the number of beams beam transceiver training program information may be used to synchronize the data transfer phase or phase alone, may be as shown in FIG 7, FIG 8 implemented as a two-stage beam training programs FIG. In the two-stage beam training programs for recording information based on the number of beams in the transceiver, a transceiver priori information may include the number of beams of recording information, 7, 8 the same embodiment as described with reference to FIG other processes, not described herein again .
[0203]
Figure 16 shows a schematic overview of an embodiment of a communication frame structure of the embodiment of the present disclosure is provided.
[0204]
In some embodiments of the present disclosure, to determine the transmission order of the transmit beam based on a priori information the base station, the base station can be reduced overhead beam scanning. Similarly, to determine the order of the reception terminal apparatus receive beam reference signal based on a priori information, the terminal device can be reduced overhead beam scanning. To accommodate different beam of the present disclosure training costs for different base stations and a terminal device, the inventors of the present disclosure designed a special frame structure shown in Figure 16 to support the flexible beam scanning slot.
[0205]
The frame structure shown in FIG 16 includes a base station slot beam scanning, beam scan slots terminal apparatus, feedback slot and a data transmission slot. Further, in FIG. 16 are omitted in the other contents of the frame.
[0206]
Beam scanning slot base station may be determined according to the number of transmit beams used for beam scanning. For example, as shown in Table 2 is the transmission order "2" is determined as the first transmit beam and transmit beam feedback, the number of transmit beams used in the beam scanning is two, the base station beam scanning slot the number may be a number of 2, the base station is less than the transmit beam n- T =. 4. Similarly, the terminal apparatus beam scanning time slot shown in Figure 16 may be determined according to the number of receive beams used for beam scanning, and may also be less than the number n terminal device receives beam R & lt .
[0207]
Beam scanning slot base station as an example, assume that L 0 is the transmission order of the first transmit beam, the beam scanning time slot the base station number is also L 0 . The average number of the base station for beam scanning a plurality of terminal devices slot can be expressed as
[0208]
[Formula 2]
[0209]
[0210]
{Wherein E L 0 } represents L 0 is desired.
[0211]
Base beam scanning average number of slots of prior information. For example, when recording information is the number of transmit beam priori information, related to the long-term distribution of a large number of terminal devices. In the prior information is geographic information on a case, the accuracy of the information about the geographical location. In addition, also associated with a predetermined threshold value μ.
[0212]
Next, with reference to Figures 17-20 illustrate simulation results according to an exemplary embodiment of the beam training embodiment of the present disclosure.
[0213]
Suppose the base station side antenna number to the number of transmit beam configuration are 32, the terminal device-side single antenna configuration, only the thin base station transmit beam for beam training. The i-th transmission beam of the base station beam vectors can be expressed as:
[0214]
[Formula 3]
[0215]
[0216]
Wherein beta] i is the i-th transmit beam direction, in order to [30 °, 150 °] of the uniform quantization, i.e.,
[0217]
[Formula 4]
[0218]
[0219]
In the simulation example of the present disclosure, the predetermined threshold is set higher μ value to ensure that the terminal device can select the optimal transmission beam, there is no loss of performance. At this point it is fair to compare the cost of different beam training programs.
[0220]
FIG 17 shows the case where information is recorded as the number of transmit beam in the a priori information, contrast histogram beam training overhead distribution terminal apparatus both scenarios: Scene (1) the angle of arrival at the terminal device [30 °, 150 ° ] is uniformly distributed; scene transmit beam (2) at the terminal device [30 °, 150 °] nearly Gaussian distribution, the direction of the center is 90 °, standard deviation σ = 20 °, i.e. most of the terminal device located in the base station are provided coverage area. The horizontal axis in FIG. 17 shows a histogram of the training overhead beam, i.e., the number of beam scanning is performed when a predetermined reception quality is higher than the threshold μ. Further, the vertical axis of the histogram represents the number of times corresponding to FIG. 17 appears overhead beam training.
[0221]
As shown in FIG. 17, in the near-Gaussian distribution, as compared with a uniform distribution, a large overhead occurs less training, a lower average beam training overhead.
[0222]
Table 4 shows the average cost of training contrast, conventional beamforming training method which is a method of training the beam traversing the base station shown in FIG. 1 transmit beam. As it can be seen, even in the worst case scenario (i.e. uniform distribution terminal apparatus) according to the method disclosed in the beam training case can save half the cost, at near-Gaussian distribution, average overhead
[0223]
[Table 4]
[0224]
[0225]
FIG. 18 shows two different scenarios (1), (2) at the base station 32 transmit beams using histogram is the number of times in which the abscissa represents the emission beam number, the ordinate indicates the number of transmission beam to be used.
[0226]
As shown, in scene uniformly distributed terminal device, the beam 32 is substantially the same as using 18 times less priori information thus generated, for subsequent beam training of little help. In scene nearly Gaussian distribution terminal apparatus, the number of transmission beam to be used are also a Gaussian distribution, more prior information generated beam, the beam will be of great help for subsequent training, training the beam can be effectively reduced overhead, thereby reducing system delays.
[0227]
FIG 19 shows a different positioning accuracy, a priori information for the geographical location information beamforming training methods overhead contrast, where the horizontal axis represents the training overhead beam, and the vertical axis represents the number corresponding to the beam training costs arise. Positioning accuracy is given by the standard deviation [sigma] is positioned, the larger [sigma], the lower the accuracy, the greater the cost of training; [sigma] is smaller, the higher the accuracy, the smaller training overhead.
[0228]
Table 5 shows the average cost of training contrast, conventional beamforming training method which is a method of training the beam traversing the base station shown in FIG. 1 transmit beam. It can be seen from FIGS. 19 and Table 5, when σ = 5 °, the average training overhead is greatly reduced.
[0229]
[table 5]
[0230]
[0231]
Figure 20 shows a comparison of the overhead beam training programs based on the geographic location information to the beam training program is not based on geographical location information, wherein the horizontal axis represents the positioning standard deviation [sigma], and the vertical axis represents the beam training overhead. 20, compared to the beam training based on the geographic location information to the beam training programs not based on geographical location information, the beam training overhead is greatly reduced. Further, fast training programs based geographical location information, as the positioning precision improving (i.e. reducing the positioning standard deviation σ), the beam training overhead smaller.
[0232]
The present disclosure proposes a beam training programs based on prior information. Beam beam training is one aspect of management. Those skilled in the art in light of the present disclosure, the disclosed embodiment may be used in other aspects of the present beam management, for example to restore the beam, the beam tracking and calibration beam and the like.
[0233]
The following describes the application examples of the present disclosure.
[0234]
The techniques of this disclosure can be applied to various products.
[0235]
For example, the base station may be implemented as any type of evolved Node B (eNB) or next generation radio access technologies gNodeB (gNB), such as a macro eNB / gNB and small eNB / gNB. Small eNB / gNB may be smaller than a macro cell covering the cell eNB / gNB, such as a pico eNB / gNB, micro eNB / gNB and family (femto) eNB / gNB. Alternatively, the base station may be implemented as any other type of base station, such as the GSM system base transceiver stations (BTS) and a base station controller (BSC) of one or both may be a radio network control in a WCDMA system device (RNC) and one or both of the NodeB or future communications system may be a corresponding network node. The base station may include: a body configured to control wireless communication (also referred to as base station apparatus); and one or more remote radio heads disposed at different places of the main body (RRH). Further, the following various types of terminals can be described by a semi-persistently or temporarily perform the base station functions as a work station.
[0236]
For example, the terminal device may be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a UAV, a portable / dongle type mobile router and a digital camera) or a vehicle-mounted terminal ( such as car navigation devices). The terminal device may also be implemented to perform a machine to machine (M2M) communication terminals (also referred to as machine type communication (MTC) terminal). In addition, the terminal device may be a wireless communication module on each terminal attached to the terminal (such as a wafer, comprising a single integrated circuit module).
[0237]
[Application Example of the base station on]
[0238]
(First Application Example)
[0239]
FIG 21 is a block diagram of a first example of a schematic configuration of gNB illustrating techniques of this disclosure may be applied content. gNB 800 includes one or more antennas 810 and a base station apparatus 820. The base station apparatus 820, and each antenna 810 may be connected to each other via a RF cable.
[0240]
Each antenna 810 includes a single or a plurality of antenna elements (such as including a multiple input multiple output (MIMO) antennas in a plurality of antenna elements), and for the base station apparatus 820 transmit and receive wireless signals. Shown in Figure 21, gNB 800 may include multiple antennas 810. For example, a plurality of the plurality of antennas 810 may be used in a frequency band compatible with gNB 800. The base station apparatus 820 includes a controller 821, a memory 822, a network interface 823 and a wireless communication interface 825.
[0241]
The controller 821 may, for example, CPU or DSP, and operation of the various higher layer 820 of the base station apparatus. For example, the controller 821 generates a data packet according to the data signal by the wireless communication interface 825 in the process, and to transmit the generated packet via the network interface 823. The controller 821 may be tied to the data from the baseband processor to generate a plurality of packet bundle, bundling and transmitting the generated packet. The controller 821 may have a function to execute control logic: the control such as a radio resource control, radio bearer control, mobility management, admission control and scheduling. This control may be incorporated nearby gNB, eNB or the core network node (e.g., access and mobility management function AMF (Access and Mobility Management Function)) is performed. Memory 822 includes RAM and ROM, and various types of control programs and data (such as terminal list, the transmission power data and schedule data) executed by the controller 821.
[0242]
The network interface 823 for base station apparatus 820 is connected to a core network communications interface 824. The controller 821 may communicate with the core network node, or another gNB / eNB via the network interface 823. In this case, gNB 800 and core network node or other gNB / eNB may (N2 interface such as interface GNB AMF and Xn) connected to each other via a logical interface. The network interface 823 may also be a wired communication interface or a wireless communication interface for the wireless backhaul. If the network interface 823 is a wireless communication interface, compared with the frequency band used by the wireless communication interface 825, network interface 823 can use a higher frequency band for radio communication.
[0243]
The wireless communication interface 825 supports any cellular communication protocol (such as LTE, LTE- Advanced, NR (New Radio)), via the antenna 810 and provided to the terminals located in the cell 800 in gNB wireless connection. The wireless communication interface 825 may generally include a processor 826 and an RF circuit such as a baseband (BB) 827. BB processor 826 may perform, for example, encoding / decoding, modulation / demodulation, and a multiplexing / demultiplexing, and performs layer (e.g. L1, medium access control (the MAC), Radio Link Control (RLC) and packet data convergence protocol ( the PDCP)) in various types of signal processing. Instead of the controller 821, BB processor 826 may have a part or all of the logic functions. BB processor 826 may be a memory storing a communication control program, or a module configured to execute a program comprising a processor and associated circuitry. Update to the functional changes in BB processor 826. The module may be inserted into the slot of the base station apparatus 820 or card insert. Alternatively, the module may be a chip on a card or blade is mounted. Meanwhile, RF circuitry 827 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 810.
[0244]
21, a wireless communication interface 825 may include a plurality of processors 826 BB. For example, the processor 826 may be compatible with a plurality of BB gNB 800 using the plurality of frequency bands. As shown in FIG 21, a wireless communication interface 825 may include a plurality of RF circuits 827. For example, a plurality of RF circuitry 827 may be compatible with a plurality of antenna elements. Although FIG. 21 shows an example in which a plurality of wireless communication interface 825 includes a plurality of BB processor 826 and RF circuits 827 example, the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827.
[0245]
(Second Application Example)
[0246]
FIG 22 is a block diagram of the second example of a schematic configuration of gNB illustrating techniques of this disclosure may be applied content. gNB 830 includes one or more antennas 840, 850 and the base station apparatus RRH 860. Each RRH 860 and antenna 840 may be connected to each other via an RF cable. RRH 860 and base station apparatus 850 may be connected to each other via high-speed line such as a fiber optic cable.
[0247]
Each antenna 840 includes a single or a plurality of antenna elements (such as including a plurality of antennas in MIMO antenna elements) and for RRH 860 transmit and receive wireless signals. Shown in Figure 22, gNB 830 may include multiple antennas 840. For example, a plurality of antennas 840 may be compatible with a plurality of frequency bands used gNB 830. The base station apparatus 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855 and the connection interface 857. Controller 851, the controller 821 is described a network interface 852 and memory 853 described with reference to FIG. 21, the same memory 822 and a network interface 823.
[0248]
The wireless communication interface 855 supports any cellular communication scheme (such as LTE and LTE- Advanced), and the antenna 840 via RRH860 to provide wireless communication with the RRH 860 positioned to correspond to a sector terminal. The wireless communication interface 855 may generally include a processor 856, for example, BB. In addition RRH860 BB processor 856 is connected to RF circuitry 864 connected via an interface 857, the same processor BB BB processor 856 described with reference to FIG 21,826. 22, wireless communication interface 855 may include a plurality of processors 856 BB. For example, the processor 856 may be compatible with a plurality of BB gNB 830 using a plurality of frequency bands. Although FIG. 22 shows a state where a wireless communication interface 855 includes a plurality of exemplary BB processor 856, the wireless communication interface 855 may include a single processor 856 BB.
[0249]
Interface 857 is an interface for connecting the base station apparatus 850 (wireless communication interface 855) connected to the RRH 860. Interface 857 may also be connected to the base station apparatus 850 (wireless communication interface 855) connected to the high-speed line RRH 860 in the communication module.
[0250]
RRH 860 comprises a connection interface 861 and a wireless communication interface 863.
[0251]
An interface 861 for connecting the RRH 860 (wireless communication interface 863) connected to the base station apparatus 850 interface. Interface 861 may also be connected to the high-speed lines in the communication module.
[0252]
The wireless communication interface 863 to transmit and receive wireless signals via the antenna 840. The wireless communication interface 863 may generally comprise, for example, RF circuit 864. RF circuit 864 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 840. 22, wireless communication interface 863 may include a plurality of RF circuits 864. For example, a plurality of RF circuitry 864 may support a plurality of antenna elements. Although FIG. 22 shows a state where a wireless communication interface 863 includes a plurality of exemplary RF circuits 864, the wireless communication interface 863 may comprise a single RF circuit 864.
[0253]
In gNB 800 and gNB 830 shown in FIG. 21 and FIG. 22, one or more components with reference to FIG. 2 and FIG. 11 described 2010/11010 processing circuit may be included in a wireless communication interfaces 912. Alternatively, at least a portion of these components may be implemented by the controller 821 and the controller 851.
[0254]
[Application example on the terminal device]
[0255]
(First Application Example)
[0256]
FIG 23 is a schematic block diagram of an arrangement 900 illustrating the present disclosure may be applied to smart phone technology. A smart phone 900 includes a processor 901, memory 902, storage device 903, an external connection interface 904, the image pickup device 906, a sensor 907, a microphone 908, an input device 909, display device 910, a speaker 911, a wireless communication interface 912, one or more antenna switch 915, one or more antennas 916, bus 917, battery 918 and the auxiliary controller 919.
[0257]
The processor 901 may, for example, (SoC), or on-chip CPU, and controls the smartphone application layer 900 and additional layer features. Memory 902 includes RAM and ROM, and stores data and programs executed by the processor 901. Memory device 903 may include a storage medium, such as a semiconductor memory and a hard disk. Interface 904 for external connection to an external device (such as a memory card, and a universal serial bus (USB) devices) connected to the interface 900 of the smart phone.
[0258]
The imaging apparatus 906 includes an image sensor (such as a charge coupled device (CCD) and complementary metal oxide semiconductor (CMOS)), and generates a captured image. Sensor 907 may include a set of sensors, such as a measuring sensor, a gyro sensor, a geomagnetic sensor and an acceleration sensor. 908 microphone input to the smart phone 900 converts the sound into an audio signal. The input device 909 includes, for example, it is configured to detect a touch on the screen of the touch sensor device 910, a keypad, a keyboard, buttons or switches displayed, and receives operation input from a user or information. The display device 910 includes a screen (such as a liquid crystal display (LCD) and organic light emitting diode (OLED) display), and displays the output image 900 is a smart phone. 911 converts the audio signal from the output of the 900 smart phone speaker sound.
[0259]
The wireless communication interface 912 supports any cellular communication scheme (such as LTE and LTE- Advanced), and performs wireless communication. The wireless communication interface 912 may comprise, for example, generally BB processor 913 and an RF circuit 914. BB processor 913 may perform, for example, encoding / decoding, modulation / demodulation, and a multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, RF circuitry 914 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 916. The wireless communication interface 912 can be integrated for the BB processor 913 and an RF circuit module 914 of one chip. 23, a wireless communication interface 912 may include a plurality of processors 913 BB 914 and a plurality of RF circuits. Although FIG. 23 shows an example in which a plurality of wireless communication interface 912 includes a plurality of BB processor 913 and RF circuit 914 example, the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914.
[0260]
Further, in addition to a cellular communication scheme, a wireless communication interface 912 may support additional types of wireless communication scheme, such as a short-distance wireless communication scheme, a near field communication scheme and wireless local area network (LAN) scheme. In this case, the wireless communication interface 912 may include a BB processor 913 for each wireless communication scheme and the RF circuit 914.
[0261]
Each of the circuits comprises a plurality (e.g. a circuit for different wireless communication schemes) in a wireless communication interface 912 switches the connection destination of the antenna 916 between the antenna switch 915.
[0262]
Each antenna 916 includes a single or a plurality of antenna elements (such as including a plurality of antenna elements in MIMO antenna), and a wireless communication interface 912 for transmitting and receiving wireless signals. 23, the smartphone 900 may comprise a plurality of antennas 916. Although FIG. 23 shows an example in which a smart phone 900 includes a plurality of antennas 916, the smartphone 900 may also include a single antenna 916.
[0263]
In addition, the smart phone 900 may include an antenna for each wireless communication scheme 916. In this case, the antenna switch 915 may be omitted from the configuration of the smart phone 900.
[0264]
917 processor bus 901, memory 902, storage device 903, an external connection interface 904, the image pickup device 906, a sensor 907, a microphone 908, an input device 909, display device 910, a speaker 911, a wireless communication interface 912 and the auxiliary controller 919 to each other connection. Each block of the smart phone 900 over line 918 shown in FIG. 23 to provide the battery power, in FIG feeders are partially shown as a dashed line. Auxiliary controller 919 operates the smartphone 900 is the minimum necessary functions in the sleep mode.
[0265]
Smart phone 900 shown in FIG. 23, one or more components with reference to FIG. 2 and FIG. 11 described 2010/11010 processing circuit may be included in a wireless communication interfaces 912. Alternatively, at least a portion of these components may be implemented by the processor 919 or secondary controller 901.
[0266]
(Second Application Example)
[0267]
FIG 24 is a schematic block diagram of an exemplary configuration 920 of the car navigation device art shows the present disclosure may be applied. Car navigation device 920 includes a processor 921, a memory 922, a global positioning system (GPS) module 924, a sensor 925, a data interface 926, content player 927, a storage medium interface 928, an input device 929, display device 930, a speaker 931, a wireless a communication interface 933, an antenna switch 936 or more, one or more antennas 937 and a battery 938.
[0268]
The processor 921 may, for example, a CPU or SoC, and controls the car navigation device 920 and additional navigation functions. Memory 922 includes RAM and ROM, and stores data and programs executed by the processor 921.
[0269]
GPS module 924 using a GPS signal received from a GPS satellite to measure the position (such as latitude, longitude, and altitude) of the car navigation device 920. Sensor 925 may include a set of sensors such as a gyro sensor, a geomagnetic sensor and an air pressure sensor. Via a data interface 926 is connected to a terminal (not shown), for example, in-vehicle network 941, and acquires the data (such as vehicle speed data) generated by the vehicle.
[0270]
Content player 927 to reproduce the content (such as CD and DVD) are stored in the storage medium, the storage medium is inserted into the storage medium interface 928. The input device 929 includes, for example, it is configured to detect a touch on the screen of the touch sensor device 930, display button or switch, and receives operation input from a user or information. The display device 930 includes a screen such as an LCD or OLED display, and displays a content image or reproducing the navigation function. Speaker 931 output sound navigation or reproduction of content.
[0271]
The wireless communication interface 933 supports any cellular communication scheme (such as LTE and LTE- Advanced), and performs wireless communication. The wireless communication interface 933 may comprise, for example, generally BB processor 934 and an RF circuit 935. BB processor 934 may perform, for example, encoding / decoding, modulation / demodulation, and a multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, RF circuitry 935 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 937. The wireless communication interface 933 may also be integrated for the BB processor 934 and an RF circuit module 935 of one chip. 24, wireless communication interface 933 may include a plurality of processors 934 BB 935 and a plurality of RF circuits. Although FIG. 24 shows a state where a wireless communication interface 933 includes a plurality of BB exemplary processors 934 and 935 of the plurality of RF circuits, the wireless communication interface 933 may include a single BB processor 934 or a single RF circuit 935.
[0272]
Further, in addition to a cellular communication scheme, a wireless communication interface 933 may support additional types of wireless communication scheme, such as a short-distance wireless communication scheme, a near field communication scheme and the wireless LAN scheme. In this case, for each wireless communication scheme, a wireless communication interface 933 may include a processor 934 and an RF circuit BB 935.
[0273]
Each of the plurality of circuits comprises a wireless communication interface 933 (such as a different circuit for a wireless communication scheme) switches the connection destination of the antenna 937 between the antenna switch 936.
[0274]
Each of the antenna 937 includes a single or a plurality of antenna elements (such as including a plurality of antenna elements in MIMO antenna), and a wireless communication interface 933 for transmitting and receiving wireless signals. 24, car navigation device 920 may include multiple antennas 937. Although FIG. 24 shows a state where the car navigation apparatus 920 includes a plurality of exemplary antenna 937, car navigation device 920, but may also comprise a single antenna 937.
[0275]
Further, the car navigation device 920 may include an antenna for each radio communication scheme 937. In this case, the antenna switch 936 may be omitted from the configuration of the car navigation device 920.
[0276]
Each of the battery blocks 938 in the car navigation apparatus shown in FIG. 24 via the feed line 920 to provide power feeder in the drawing is partially shown as a dashed line. Cumulative power from the battery 938 provided by the vehicle.
[0277]
In the car navigation apparatus 920 shown in FIG. 24, one or more components 2010/11010 processing circuit described with reference to FIGS. 2 and 11 may be implemented including a wireless communication interface 912. Alternatively, at least a portion of these components may be implemented by the processor 921.
[0278]
The techniques of this disclosure may also be implemented as a car navigation device 920 includes a vehicle network module 941 and a vehicle 942 in the vehicle system or a plurality of blocks (or vehicle) 940. Vehicle module 942 to generate vehicle data (such as vehicle speed, engine speed, and failure information), and outputs the generated data to the vehicle network 941.
[0279]
It should be understood that in this specification to "an embodiment" or similar expressions REFERENCE means that a particular feature of this embodiment, structure, or characteristic lines comprising at least one specific embodiment of the present disclosure. Accordingly, in the present specification, "in an embodiment of the present disclosure," and similar terms appear in the manner of expression necessarily referring to the same embodiment.
[0280]
Skilled in the art will appreciate that the present disclosure is implemented as a system, apparatus, method, or as a computer-readable medium of a computer program product (e.g., non-transitory storage medium). Accordingly, the present disclosure may be embodied in various forms, e.g. embodiment, an entirely software embodiment, an entirely hardware embodiment (including firmware, resident software, microcode, etc.), or may be implemented as software and hardware embodiments, in It will be hereinafter referred to as a "circuit", "module" or "system." Further, the present disclosure may be in any form of tangible media implemented as a computer program product having a computer usable program code stored thereon.
[0281]
The present disclosure described with reference related to the particular system described with reference to the present disclosure, a flowchart apparatus, methods and computer program products and / or block diagram of the embodiment. It is understood that each of the flowchart / each block, and / or any combination block diagram and flow chart or block diagram blocks may be implemented using computer program instructions. Machine consisting of a processor or other programmable data processing apparatus These computer program instructions for general-purpose computer or a special computer to execute, the instruction processing apparatus to a data processing computer or other programmable via the flowchart and / or block diagrams described functions or operations.
[0282]
Display systems, devices, methods and computer program products may implement the architecture, functionality, and operation of a flow chart and block diagram according to various embodiments of the present disclosure in the drawings. Thus, flowchart or block diagrams each block may represent a module, segment, or portion of the program code, which comprises one or more executable instructions to implement the specified logical function. It should also be noted that, in certain other embodiments, the block function may not be performed in the order shown in FIG. For example, two blocks shown connected in fact may be performed simultaneously, sequentially, or may be performed depending upon the functionality involved in some cases by the icon opposite. Also be noted that, for each block of the block diagrams and / or flowchart illustration, and and / or combinations of blocks in the flowchart block diagram, by special purpose hardware may be implemented system, or combinations of special purpose hardware and computer instructions by the, to perform a specific function or operation.
[0283]
The foregoing has described the embodiments of the present disclosure, the foregoing description is exemplary and not intended to be exhaustive or limited to the embodiments disclosed embodiment. In the case of each of the embodiments from the scope and spirit of the embodiments described without departing from, those of ordinary skill in the art Many modifications and variations will be apparent. Others of ordinary skill in the selected term herein used, is intended to best explain the principles of the embodiments, the practical application, or technical improvements to the technology market, or to the art to understand the embodiments herein disclosed embodiments.

WE Claims

[Claim 1]
For an electronic apparatus side first communication device, comprising: a processing circuit, the processing circuitry is configured to: determine to perform scanning beam from a first communication device to the second communication device in accordance with a priori information transmitting a first communication device in the order of the plurality of transmit beams; and a plurality of control to the transmission order in accordance with the determined transmission beam for the beam scan.
[Claim 2]
The electronic apparatus according to claim 1, wherein said a priori information comprises a plurality of transmit pre-recorded number of times during data transmission beams are employed.
[Claim 3]
The electronic apparatus according to claim 2, wherein said a priori information including the predetermined number of times recorded on the plurality of beams emitted from the first communication device transmitting data to a second communication device are used.
[Claim 4]
The electronic apparatus according to claim 2, wherein the a priori information to determine the order of the plurality of transmit beams emitted comprising: transmission order is employed the more times the beams emitted forward.
[Claim 5]
The electronic apparatus according to claim 1, wherein said a priori information comprises location information of the second communication device.
[Claim 6]
The electronic apparatus according to claim 5, wherein the a priori information to determine transmission order of the plurality of transmit beams comprising: a direction toward the closer the transmission order of the transmit beam location information indicated by the location more front.
[Claim 7]
The electronic device according to claim 5, wherein said a priori information further includes the number of said plurality of pre-recorded data in the transmit beam transmission are employed to determine the a priori information of the plurality of transmit beams transmission sequence comprises: pointing to the geographic location and the geographic location information of a deviation indicated by less than a predetermined threshold value or more transmit beams, the more the number of adopted transmission order of the transmit beam front.
[Claim 8]
The electronic apparatus according to claim 1, wherein, in the phase of the synchronous communication and / or data transmission phase in accordance with the determined transmission order of the plurality of transmit beams for scanning said beam.
[Claim 9]
The electronic apparatus according to claim 1, wherein the processing circuit is further configured to: acquire feedback information from the second communication device, said first feedback information indicating the plurality of transmit beams in a first communication device transmit beam, wherein the reception quality of the second communications device a reference signal transmitted by the first transmit beam is higher than a predetermined threshold value; and controlling to transmit the first data transmission beam for the communication.
[Claim 10]
The electronic apparatus according to claim 9, wherein, when acquiring feedback information from the second communication apparatus, the beam scanning is stopped.
[Claim 11]
The electronic apparatus according to the time slot claimed in claim 10, wherein, in said frame for communication in, for performing the beam scanning is determined according to the number of transmit beams used for beam scanning.
[Claim 12]
The electronic apparatus according to claim 9, wherein the feedback information comprises information indicating the index of the first transmit beam, information indicating the order of transmitting the first emission beam, the first indicating the corresponding transmit beam antenna port information for the at least one CSI-RS resource indicator indicates the first transmit beam in.
[Claim 13]
The electronic apparatus according to claim 9, wherein the reception quality of the second communications device to transmit a reference signal in order of a transmit beam before the first transmit beam being emitted below the predetermined threshold value.
[Claim 14]
The electronic apparatus according to claim 9, wherein a transmission order in the second transmit beam emitted beam before the first transmit beams as an alternative transmission beam for beam switching, wherein the second communications device the reception quality of the second transmission beam reception quality after the first transmit beam.
[Claim 15]
The electronic device of any one of claims 1 to 14 claim, wherein the first communication device is a terminal device, the second communication device is a base station.
[Claim 16]
The electronic device of any one of claims 1 to 14 claim, wherein the first communication device is a base station, the second communication device is a terminal device.
[Claim 17]
The electronic apparatus according to claim 16, wherein the a priori information to determine transmission order of the plurality of transmit beams comprising: a synchronization phase of the communication, determining a priori information for the cell controlled by base station order of the plurality of transmit beams emitted crude scanning said beam in a base station; and a data transmission phase of the communication, a priori information for the terminal device to determine the plurality of thin beams emitted beam scans a base station transmission coverage sequence, wherein said plurality of fine said plurality of transmit beams in the coverage of a crude coarse emission beam emitted in the beam.
[Claim 18]
An electronic apparatus side second communication device, comprising: a processing circuit, the processing circuitry is configured to: measure a reference signal transmitted by the first communication device; and a high reception quality to the first reference signal measurement occurs in the case where a predetermined threshold value, the first communication device is higher than the feedback information indicative of reception quality of the transmission beam to the first predetermined threshold value communications device corresponding to the reference signal.
[Claim 19]
The electronic apparatus according to claim 18, wherein, without waiting for the transmission beam and the reception quality is greater than the transmit beam after said first predetermined threshold value communications device corresponding to the reference signal, ie the feedback.
[Claim 20]
The electronic apparatus according to claim 18, wherein the feedback indicates is not higher than the reception quality information transmitted beam after the transmit beam of a first predetermined threshold value communications device corresponding to the reference signal.
[Claim 21]
The electronic device according to claim 18, wherein the processing circuit is further configured to: determine a plurality of communication devices for receiving the second reference signal transmitted by the communication device receiving a first beam of a priori information receiving a sequence; and a control for the plurality of receiving beam receiver receives the reference signal according to the determined order.
[Claim 22]
The electronic apparatus according to claim 21, wherein said a priori information includes the number of the plurality of receive beams in pre-recorded data transmission are employed.
[Claim 23]
18 The electronic device according to one of claim 22, wherein the first communication device is a terminal device, the second communication device is a base station.
[Claim 24]
18 The electronic device according to one of claim 22, wherein the first communication device is a base station, the second communication device is a terminal device.
[Claim 25]
A communication method, comprising: determining a first communication device to transmit the order to a plurality of beams emitted from the beam scanning for communication with the first communication device to the second communication device according to a first communication device a priori information; controlling a first communication device to the plurality of transmission order in accordance with the determined transmission beam for the beam scan.
[Claim 26]
The communication method according to claim 25, wherein said a priori information includes the number of said plurality of pre-recorded data in the transmit beam transmission are employed.
[Claim 27]
The communication method according to claim 25, wherein said a priori information comprises location information of the second communication device.
[Claim 28]
A communication method, comprising: a second communication apparatus measuring the reference signal transmitted by a first communication device; and a case where the received quality of the first reference signal measurement to occur above a predetermined threshold value, the second communication device to the first communication a feedback device indicative of reception quality information is higher than said predetermined first transmission beam of the communication device a signal corresponding to the reference threshold.
[Claim 29]
A computer readable storage medium comprising executable instructions, the executable instructions when executed by an information processing apparatus, causes the information processing apparatus to execute the communication method according to any one of claims 25-28 claims.