[0001]The present disclosure relates generally to wireless communication systems, and in particular to a beam associated with beam forming technology management.
Background technique
[0002]In recent years, with the development and wide application of mobile Internet technology, wireless communication as never before to meet the people's voice and data communication needs. To provide a higher quality and capacity of communication, a wireless communication system using a variety of techniques at different levels, for example, beamforming (Beamforming) technology. Beamforming may transmit and / or by increasing the directivity of the receiving antenna, to provide beamforming gain to compensate for the loss of the wireless signal. In the future wireless communication systems (e.g., such as NR (New Radio) system 5G system), the base station antenna ports and the terminal apparatus side will be further enhanced. For example, the base station side antenna ports can be increased to hundreds or even more, so as to constitute a large-scale antenna (Massive MIMO) system. Thus, large-scale antenna systems, beamforming application will have a larger space.
[0003]
Currently, more beamforming for data transmission and reception process between the base station and the terminal device. However, the initial connection between the terminal and the base station / synchronization (including, for example, a base station transmits a synchronization signal (Synchronization Signal, SS), the terminal device transmits a random access signal to the base station) so that the terminal device is capable of communicating with a base station suitable first step. Thus, beamforming techniques can be considered for the initial connection between the terminal and the base station / synchronization, for example, beamforming techniques can be considered for transmitting and receiving processes of transmitting and receiving a synchronization signal and a random access signal.
[0004]
SUMMARY
[0005]
Various aspects of the present disclosure relates to a beam management beamforming technique in a wireless communication system.
[0006]
One aspect of the disclosure relates to an electronic device for the base station side radio communication system. According to one embodiment, the electronic device may include a processing circuit. The processing circuit may be configured to transmit using a different beam configuration based on a transmission beam to the terminal device transmits the synchronization signal is repeated, the synchronization signal indicates that synchronization information transmission beam transmitted signal is used. The processing circuitry may also be configured to obtain feedback from the terminal device, the feedback information including transmission beam for transmission beam management.
[0007]
Another aspect of the present disclosure relates to an electronic apparatus for a wireless communication system, the terminal device side. According to one embodiment, the electronic device comprises a processing circuit. The processing circuit may be configured configured to receive a synchronization signal based on the base station side transmit beam wireless communication system, the base station transmits a synchronization signal capable of indicating the synchronizing signal message transmission beam is used. The processing circuit may be configured to provide feedback to the base station, the feedback information may comprise the transmit beam for the base station for transmitting a beam management.
[0008]
Another aspect of the present disclosure relates to a wireless communication method. In one embodiment, the method may include configuring with different transmission beams based on the transmit beam transmits the synchronization signal to the terminal device repeats, the synchronization signal can be indicative of transmit transmission beam information of the synchronizing signal is used; and obtaining feedback from the terminal device the feedback information transmission beam comprising a beam for transmission management.
[0009]
Another aspect of the present disclosure is directed to another wireless communication method. In one embodiment, the method may comprise configured to receive a synchronization signal based on the transmission beams the base station side radio communication system, a synchronization signal can indicate the base station transmits transmission beam information of the synchronizing signal is used; and provide feedback to the base station, the feedback comprising transmit beamforming information for managing the base station to transmit beams.
[0010]
Another aspect of the present disclosure relates to an electronic device for the base station side radio communication system. According to one embodiment, the electronic device may include a processing circuit. The processing circuit may be configured to receive the transmitted beam configuration from another base station, the other base station transmits the synchronization signal to the terminal device based on transmission beam configuration. The processing circuitry may also be configured to transmit a beam transmitted to the terminal device configuration.
[0011]
Another aspect of the present disclosure relates to an electronic apparatus for a wireless communication system, the terminal device side. According to one embodiment, the electronic device comprises a processing circuit. The processing circuitry may be configured to obtain random access configuration information; and a random access based on the configuration information transmitted random access preamble, indicating the downlink beams with one or more receiving-side terminal apparatus side base pairing one or more transmit beams.
[0012]
Another aspect of the present disclosure relates to an electronic device for the base station side radio communication system. According to one embodiment, the electronic device may include a processing circuit. And receiving, from a random access preamble sent by the terminal to obtain a downlink-side terminal device or a plurality of receive beams paired base station side; the processing circuitry may be configured to transmit the random access configuration information or a plurality of transmit beams.
[0013]
Another aspect of the present disclosure relates to a wireless communication method. In one embodiment, the method may include obtaining random access configuration information; and a random access based on the configuration information transmitted random access preamble, indicating the downlink paired with one or more receiving terminal apparatus side beams one or more transmit beams of the base station side.
[0014]
Another aspect of the present disclosure is directed to another wireless communication method. In one embodiment, the method may comprise sending a random access configuration information; and receiving a random access preamble sent by the terminal to obtain the base station downlink side terminal device or a plurality of receive beams pairs one or more transmit beams side.
[0015]
The computer of the present disclosure is directed to another aspect of one or more instructions stored in a readable storage medium. In some embodiments, the one or more instructions may, when executed by one or more processors of the electronic device, electronic perform a method according to various embodiments of the device according to the present disclosure.
[0016]
Another aspect of the present disclosure is directed to various means including means for performing an operation of each unit or the method of the present embodiment of the disclosed embodiments.
[0017]
Summary is provided to summarize some of the above-described exemplary embodiments, in order to provide a basic understanding of the subject matter described herein in various aspects. Thus, the features described above are merely examples and should not be construed as in any way to narrow the scope or spirit of the subject matter described herein. Other features of the subject matter described herein, aspects and advantages will become apparent hereinafter in conjunction with the specific embodiments depicted in the figures.
BRIEF DESCRIPTION
[0018]
When considered in conjunction with the accompanying drawings the following detailed description of embodiments can be obtained for a better understanding of the present disclosure. Using the same or similar reference numerals throughout the drawings to refer to the same or like parts. Together with the accompanying drawings comprising a part of the following detailed description in this specification and form of the specification, illustrate embodiments used to illustrate and explain the principles and advantages of embodiments of the present disclosure of the present disclosure. among them:
[0019]
Figure 1 depicts a wireless communication system is an exemplary cell synchronization and random access procedure.
[0020]
2A to 2D depicts an exemplary scanning beam beamforming technology.
[0021]
3A illustrates an exemplary electronic device for a base station side according to the present embodiment of the disclosed embodiments.
[0022]
3B illustrates an exemplary electronic device for the terminal apparatus side in accordance with the disclosed embodiment of the present embodiment.
[0023]
4A to 4D illustrate exemplary frequency domain resource according to a time-domain signal for synchronizing an embodiment of the present disclosure.
[0024]
5A and 5B illustrate an exemplary embodiment of the synchronizing signal window of time in accordance with the present disclosure.
[0025]
6A to 6C show an exemplary embodiment of the present disclosure transmit the base station side beam embodiment is disposed.
[0026]
7A to 7D illustrate an exemplary correspondence between synchronization signal transmit beam and a time window of the present embodiments disclosed embodiments.
[0027]
8A and 8B illustrate an exemplary configuration for receiving beams arranged side terminal apparatus according to a particular base station side transmit beamformer disclosed embodiments of the present embodiment.
[0028]
FIG 9 illustrates an exemplary operation of the secondary node is added according to an embodiment of the present disclosure.
[0029]
FIG 10 shows an example of the performance of the detection beam according to an embodiment of the present disclosure.
[0030]
11A and 11B illustrate an example embodiment base station according to an instruction of the present embodiment of the disclosed embodiments transmit beam side information.
[0031]
12A and 12B illustrate an example embodiment of the disclosed method for communication according to the present embodiment.
[0032]
FIG 13 illustrates an exemplary electronic device for a base station side according to the present embodiment of the disclosed embodiment,
[0033]
FIG 14 shows a hierarchical transmission beam scanning process according to the present exemplary embodiment of the disclosed embodiments.
[0034]
FIG 15A illustrates an exemplary electronic device for the terminal apparatus side in accordance with the disclosed embodiment of the present embodiment,
[0035]
FIG 15B illustrates an exemplary electronic device for a base station side according to the present embodiment of the disclosed embodiments
[0036]
FIG 16 illustrates an exemplary random access time window according to embodiments of the present disclosure.
[0037]
17A and 17B show an exemplary configuration of the reception beam embodiment of the present disclosure of embodiments of a base station side.
[0038]
Figure 18 shows an exemplary correspondence between a base station side reception beam embodiments disclosed embodiment of the present random access time window.
[0039]
19A and 19B illustrate an exemplary configuration for the transmit beam arrangement according to the terminal side base station side apparatus receives the particular embodiments disclosed embodiment of the present beam.
[0040]
20A and 20B illustrate an example method embodiment according to the transmission disclosed embodiment of the present random access preamble.
[0041]
FIG 21A illustrates an exemplary method of transmitting a terminal apparatus according to an embodiment of the present disclosure random access preamble.
[0042]
FIG 21B illustrates an exemplary method of a base station according to the disclosed embodiments of the present embodiment receiving a random access preamble.
[0043]
FIG 22 illustrates an exemplary method of retransmitting the random access preamble according to an embodiment of the present disclosure.
[0044]
23A and 23B illustrate an example of a method for communication according to the present embodiment of the disclosed embodiments.
[0045]
FIG 24 is a block diagram illustrating a configuration of a personal computer as the information processing apparatus of the present disclosure may be employed in the embodiment of the embodiment;
[0046]
FIG 25 is a block diagram of a first exemplary configuration of gNB a schematic illustrating the techniques of this disclosure may be applied to;
[0047]
FIG 26 is a block diagram of the second example of a schematic configuration of gNB illustrating techniques of this disclosure may be applied to;
[0048]
FIG 27 is a block diagram illustrating an example of a possible application of a schematic configuration of a smart phone technology of the present disclosure; and
[0049]
FIG 28 is a block diagram illustrating an example of a schematic configuration of a car navigation apparatus of the present disclosure the art may be applied.
[0050]
Although in the embodiment described in this disclosure may be prone to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the accompanying drawings are shown and described in detail herein. However, it should be understood that the drawings and detailed description thereto are not intended to be limited to the embodiments to the particular forms disclosed, but on the contrary, the purpose is to cover all modifications within the scope of the spirit of the claims and, equivalents, and alternatives Program.
Detailed ways
[0051]
Exemplary embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. For clarity and conciseness, in the specification are not all features of an actual implementation. However, it should be clear that the decision must be made in the specific embodiments of the development of any such actual embodiment of a process in order to achieve the developer's specific goals. For example, compliance with system and business-related constraints, and that these restrictions may be subject to change with different embodiments. Furthermore, it should clear, although the development work may be more complex and time-consuming, but the benefit of this disclosure skilled in the art, this development is only a routine task.
[0052]
In order to avoid unnecessary obscure the details of the present disclosure, the drawings only shows a device configuration according to this embodiment is closely related to the disclosure and / or steps, but other details are omitted in the present disclosure has little relationship between .
[0053]
Initial connection to the base station and the terminal device / synchronization process
[0054]
First, the wireless communication system described in conjunction with the exemplary base station and terminal equipment initial connection / synchronization process of Fig. 1, comprises a cell synchronization and random access procedure. Generally, a wireless communication system may include a plurality of base stations, each base station may serve several terminal devices within the respective coverage area (e.g., cell). Figure 1 illustrates an exemplary cell 120 between the terminal apparatus and the base station 110 and the synchronous random access procedure, the terminal device 110 is one of a plurality of terminal devices served by base station 120. The process may also be applied to any wireless communication system terminal equipment.
[0055]
The terminal device 110 to switch to the first power or the need for a base station 120 cell search, cell search for one of the purposes is to make the terminal apparatus 110 acquires frame timing cell base station 120, obtained downlink frame start position. On the other hand, the base station 120 transmits a synchronization signal 101, so that the terminal device 110 can acquire the frame timing of a cell, the base station 120 transmits a synchronization signal for example may be performed periodically. In general, the synchronization signal may include a synchronization sequence, the synchronization sequence set synchronization sequence selected from the base station and the terminal device are known. For example, in the LTE system, the synchronization signal comprises a primary synchronization signal (Primary Synchronization Signal, PSS) and a secondary synchronization signal (Secondary Synchronization Signal, SSS). In one example, primary synchronization signal may be a Zadoff-Chu sequence of length 63, the secondary synchronization signal may be a sequence of length 62 by a length of two concatenated sequences of 31 M is obtained. Further, the synchronization signal may be transmitted in a certain time period or time pattern, for example, synchronization signal may be a fixed position in the downlink frame (e.g., a fixed sub-frame, slot, and symbol location) at transmission. Thus, the terminal device 110 may set the synchronization signal and the known sequence, for example, a single sub-frame in the received synchronization sequence correlation operation one by one at the center of the carrier, where the position of the correlation peak corresponding to the downlink synchronization signal passage position in the frame, whereby the terminal device 110 may obtain a downlink synchronization cell.
[0056]
After the cells obtain a downlink synchronization, the terminal device 110 may be in place in the downlink frame is received cell system information. 120 may be made of system information broadcast by the base station a channel (e.g., the broadcast channel PBCH, PDSCH shared channel, etc.) broadcast cycle, and 120 may include the information necessary to access the base station to the terminal device 110, such as random access related information.
[0057]
Thereafter, the cell in order to obtain uplink synchronization, the terminal device 110 needs to perform random access procedure. Exemplary random access procedure as follows. At 102, the terminal device 110 may be a random access preamble (e.g., comprising in the MSG-1) access to their behavior notifies the base station 120 by transmitting to the base station 120. Transmitting a random access preamble that the base station 120 to the terminal apparatus estimates the uplink timing advance (Timing Advance). At 103, the base station 120 to the terminal device by transmitting a random access response 110 (e.g., including the MSG-2) is used to notify the timing advance to the terminal device 110. Terminal device 110 may be implemented by the uplink synchronization cell timing advance. The random access response message may further include an uplink resource, the terminal device 110 may use the uplink resources in the operation 104. For the random access procedure type, at 104, the terminal device 110 and terminal device identification may possibly other information (e.g., including the MSG-3) sent by the above-described uplink resource scheduling. The base station 120 may determine the contention resolution results terminal device identification. At 105, the base station apparatus 120 may notify the terminal 110 of the result of contention resolution (e.g., including MSG-4 in). At this time, if the competition is successful, the terminal device 110 successfully access the base station 120, the random access procedure ends; otherwise, the terminal device 110 needs to repeat a random access procedure 102 through 105. In one example, after a random access procedure is successful, it can be considered an initial connection between the terminal and the base station / synchronization process ends, the terminal device can communicate with the base station for subsequent.
[0058]
Beam forming and beam scan Overview
[0059]
Beamforming refers generally to take into account the antenna transmission and / or reception of a strong directivity, such that each of the transmit beam and / or receive beam pointing direction is limited to a particular beam coverage and coverage of each beam is narrower than the full width of the beam, the beam gain increases. These beams transmit and / or receive beams can be approximated by a combination of wide beam sake. May refer to the full width of the beam in the beam without using beamforming, i.e. which beam width is not narrowed by a beam forming process. For example, an omnidirectional antenna beam may be considered to be the full width of the beam. In some examples, the physical implementation, the transmission side communication apparatus having a plurality of radio frequency links, radio frequency links each connected to the plurality of antennas and phase shifters, the signal on each of a plurality of radio links having different phases by transmit antenna are superimposed to form a transmission beam to the air. The control unit transmitting side communication apparatus determines a plurality of phase values ​​corresponding to the target antennas transmit beam direction, and arranged corresponding phase shifters to control the transmit beamforming. Accordingly, the reception side communication apparatus having one or more radio links, radio frequency links each connected to the plurality of antennas and phase shifters, air radio signals through a plurality of antennas having different phases is superimposed on the received radio frequency thereby forming a reception beam link. The control unit determines the reception side communication apparatus a phase value corresponding to a plurality of antennas in accordance with the target reception beam direction, and arranged corresponding phase shifters to control the receive beamforming. In some examples, the control unit of the communication device a plurality of antennas should be arranged for each radio link according to a predetermined code phase shifters, the codebook comprising a plurality of codewords, each codeword corresponding to a beam direction, indicated a phase combination of a phase shifter.
[0060]
In beamforming, since the antenna for transmitting and / or receiving strong directivity, the downlink or uplink transmission and reception beams in the links to be matched to ensure obtain beamforming gain. Thus, it is possible to collect and maintain such matching transmit and receive beams downlink or uplink, i.e. for beam management. Beam management involves two important aspects, namely beam scanning and scan results interactively. Beam scanning may include scanning transmit beam and receive beam scanning, which refer respectively to transmit and receive beams to cover a different spatial area over time in a predetermined manner, in order to identify a beam adapted to transmit and receive spatial orientation of the region . Downlink as an example, since a terminal equipment located at a particular position is typically a base station, the base station side so generally only one (or more) specific transmit beam adapted to communicate with the terminal device. Also typically present in one (or more) cooperating with the particular transmission beam receive beam at the terminal device side. The terminal device may report the results of the scan of the base station with its side beam specific transmit to the base station. In the synchronization signal transmission and reception in a matched pair of transmitting and receiving beams may refer to such synchronization sequence correlation result of the correlation operation upon receiving a synchronization signal meets a certain threshold level of transmit and receive beam pair. It will be appreciated, in a subsequent data transmission and reception, but also via the communication quality of the transmit and receive beams (e.g., received signal strength (e.g. RSRP of), SINR (e.g., the CQI), a bit error rate (e.g. BER, BLER), etc.) communication can meet certain quality requirements.
[0061]
With reference to FIGS. 2A to 2D described beam scanning beam forming techniques. In beamforming, the transmitter may transmit a plurality of transmit beams by beam scanning. In the example of FIG. 2A, the transmitting end is provided with four transmit beam, in the example of FIG. 2B, the transmitting end is provided with three transmit beams. Depending on the configuration or application needs, the receiver may or may not use the receive beamforming. In the example of FIG. 2A, the receiving end receives receive beamforming and beam scanning through three receive beams. In the example of FIG. 2B, the receiver does not use the receive beamforming and provided with only one full-width of a receive beam. In beamforming, the transmitter and / or receiver terminal may also transmit beams provided took part in class, e.g. a first level emission beam (also called crude transmit beams) transmit beam and a second level (also referred to as thin transmit beam). In the example of FIG. 2C, the transmitting end is provided with three first level of the transmit beam (i.e. TX_B1 to TX_B3), each first level beam and transmit the transmit beam 2 is provided with a second level (e.g. two TX_B1 a transmit beam for the fine and TX_B1,1 TX_B1,2, similar to the rest). In the example of FIG. 2D, the transmitter and receiver are arranged to transmit beams took part in class. In 2D, the transmitter transmission beam is similar to FIG. 2C, the receiving end is provided with three beam receiving first level (i.e. RX_B1 to RX_B3), each receive beam is provided with a first level and a second level 2 receive beams (e.g., two thin RX_B1 transmit beam is RX_B1,1 and RX_B1,2, similar to the rest). 2C and 2D, the crude transmit beam beamwidth beam may be wider than the thin emission, the fine gain beam emitted beam may be larger than the rough emission.
[0062]
In the beam scanning process, the transmitter may transmit a beam-by-transmission (i.e., transmit beam scanning), for example, taking into account the receiving end, each of the transmit beam may be transmitted once or repeatedly transmitted several times. The receiving end may transmit beams for each transmit beam using the received one by one received (i.e., received beam scanning), to determine matching transmit and receive beam pair. In the example of FIG. 2A, the transmitter may first send TX_B1 transmission beam reused three times. Accordingly, the receiving end can be used individually transmit and receive beams 1 RX_B3 RX_B1 to receive a corresponding, respective results of the synchronization sequence correlation. Next, the transmitter may transmit beams TX_B2 transmission reused three times, the receiver can send one by one using a secondary receive beam RX_B1 RX_B3 to receive the corresponding results and the corresponding synchronization sequence correlation. After repeated use at the transmitting end transmit beam TX_B3, TX_B4 been transmitted, the receiving end can be obtained based on the synchronization sequence correlation match is determined transmit and receive beam pair. Thus, subsequent communication between the transmitter and receiver may use the transmit and receive beams to be. Transmitting repetitions of each transmit beam in the above example may be an integer multiple of the received beam number. Having a plurality of radio frequency chains at the receiving end so that the case can be used simultaneously receiving a plurality of receive beams, the transmitter transmitting each transmit beam need not be repeated, and only successively transmit TX_B1 ~ TX_B4. 2B is an example of a receiving end receiving beamforming is not used. In Figure 2B, the transmitting end for each transmission, the terminal device uses the full width of the receiving beam receives and determines a corresponding synchronization sequence correlation, to determine the transmit beam and the receive beam to match the full width. Thus, in subsequent communications between the transmitter and the receiver, the transmitter transmission beam using the determined communication.
[0063]
In the case of FIG. 2C transmit beam equatorial level, may first determine a first level of transmit beams match, then a match is determined at the emission beam in a second beam transmit level of the first level of matching. For example, the transmitter may transmit first beam scanning a first level, the receiver can determine a first level of transmit beams its matching similar manner as above. When the transmitter transmitting the transmit beam for beam scanning in a second level of the beam through the first hierarchical match, the receiving end can be similarly determined second level of transmit beams that matches it. Thereby finally determining a second level of transmit beams and receive beams matching as the matching of the transmit and receive beam pair to use for subsequent communications. According to an exemplary implementation, when a second level of transmit beams for beam scanning, the receiving end may be directly utilized when a first level scan transmit beam matches the determined reception beam to the reception as a reception beam and determines, rather than all receive beams, thereby reducing the overhead beam scanning.
[0064]
In Figure 2D the transmit beam and receive beam average level case, the beam scanning, the transmitter may transmit first beam scanning a first level, the receiver can use a first receive beam corresponding to the receiving level, whereby a match is determined in a similar manner as the above-described first level beam and transmit a first level of a received beam. By matching the transmitting end of the transmission beam at a second level to the first level when the transmit beam for beam scanning, the receiver can use the corresponding matching reception beam at a second level to the first level of a received beam receiving to determine the matching similar manner as above the second hierarchical level and the second emission beam received beam, as the matching of the transmit and receive beam pair to use for subsequent communications.
[0065]
It should be appreciated that, in downlink communication, a transmit end may correspond to a base station 120, receiving terminal 110 may correspond to the terminal device. In uplink communication, the transmitter 110 may correspond to a terminal device, receiving terminal 120 may correspond to a base station. In the present embodiment of the present disclosure, the receive and transmit beams corresponding to the matched in uplink transmit and receive beams with downlink matches (e.g. the same) in a case, said transmit and receive beams in the uplink and downlink of symmetry. This symmetry means that it matches the terminal apparatus 110, the transmit and receive beams corresponding to the base station 120, may be determined corresponding to the received beam of a base station side matching matching transmission beam (reception beam or) (or emission beam). It is concerned with the matching base station 120, similar to the case of a terminal device 110 side.
[0066]
Application of the synchronization signal transmission and reception beamforming
[0067]
Application will be briefly forming technology in a transceiver in the synchronous signal beam is described. In the field of wireless communications, beamforming techniques have been used to transmit data signals. According to the present embodiment of the disclosed embodiment, the synchronization signal can be transmitted using beamforming. For example, the base station 120 can transmit beamforming transmits a synchronization signal to the synchronization signal loss compensation to ensure that the terminal device 110 appropriately perform downlink synchronization and random access procedure. The technical solution of the present disclosure may be used for various communications band, the conventional radio-frequency communications band comprising several hundred MHz to several GHz. With the improvement of the radio communication system frequency bands, for example, 26GHz, 60GHz or higher frequency band, as compared to a radio channel to be subjected to a low-band (e.g. 2GHz) larger pathloss, the negative impact of atmospheric absorption loss and the like. Thus, according to the aspect of the present disclosure are equally applicable to the high-band communication (e.g., millimeter waves), and even more important.
[0068]
In some embodiments of the present disclosure, transmitting a synchronization signal may indicate a transmit signal transmission beam information used for synchronization, so that the terminal device can obtain information for the transmission beam by receiving a synchronizing signal to simplify, speed up the subsequent data transmission beam scanning. According to some embodiments of the present disclosure, the synchronization signal can be configured with different base station based on transmit beam emitted from the beam to repeatedly send the terminal device including a plurality of terminal devices, and the sync signal may include transmitting the transmit beam used by the synchronization signal information, as described herein below. For example, using a beamforming technique in some embodiments, transmitting the synchronization signal in consideration to the base station 120 will transmit a plurality of different beam repeatedly transmits the synchronizing signal, the synchronizing signal redesigned time window downlink frame, as described after specifically described. A plurality of transmit beam scanning the transmitted beam pattern can be represented by repeating transmit beam configuration, it can be configured to transmit a synchronization signal based on the transmission beam.
[0069]
The terminal device can receive the synchronization signals in various ways. When receiving the synchronization signal, the terminal device may determine the transmit beam and at least terminal device matches the base station and to the base station matches the transmission beam by any suitable manner, including as well as any other aspect of the present disclosure described below. The transmit beam to match at least a base station may be used for subsequent communication between the base station and the terminal device (including a random access procedure and process data transceiver).
[0070]
In one embodiment, the terminal device 110 may not use the receive beamforming so fast synchronization and subsequent reduction to obtain a compromise between the overhead beam scanning upon receiving the synchronization signal. In this case, the terminal device 110 that its own full width of the beam received by each transmit beam of the base station side transmits a synchronization signal, and upon successful reception of the synchronization signal to the base station and the base station transmit beam full width of the side beams match 120. Embodiment, the terminal device 110 receive beamforming may be used to resist fading frequency sync signal and the subsequent savings in overhead beam scanning synchronization signal upon receipt of a further embodiment. At this time, it may be determined transmit beams and receive beams of a base station-side termination apparatus side upon successful reception of the synchronization signal, and may match the transmit beam 120 to the base station. The matching of the transmitting and receiving beams used directly or indirectly subsequent communications between the base station 120 and the terminal device 110 (including a random access procedure and process data transceiver). For example, the same beam transmit and receive beams 110 uses the synchronization signal and the base station 120 and the matching terminal device to send and receive data, in other words, the sync signal and the data signal beam shaping same codebook. As another example, the transmit and receive beams of the base station 120 and terminal 110 using a synchronization signal matching device as a first level of the beam, the second level of the scanning beam coverage of the first level determining finer beam transceiver beam pairs for data transmission and reception, in other words, the beamforming codebook sync signal and data signal are different, the data signal beam is a beam shaping codebook subset synchronizing signal forming the codebook.
[0071]
In the case of some embodiments, the terminal device also uses beamforming technique to receive the synchronization signal, the terminal device may be configured based on the base station transmit the synchronization signals transmitted beam (e.g., a total number of transmit beams, each transmission beam repetitions ) to set the terminal device to receive the synchronization signal reception beam. For example, since the terminal device 110 receives the required beam scanning, which is used to receive different receive beams transmitted from the base station side signal beam transmitted through the same, the terminal device 110 may need to know the base station 120 transmit beam configuration. In one example, the base station transmits beam 120 may be arranged in advance informed to the terminal device. For example, the terminal device may obtain simultaneously serving base station 120 and the base station (e.g. LTE eNB) does not perform beamforming another transceiver connected via the bis (Dual Connectivity) manner, the terminal device 110 may be obtained from the transmission base station 120 to another base station beam configuration information. Specifically, the terminal device 110 first access the other base station (may be referred to as a primary base station) according to a conventional manner, for example, by the primary base station interface requests the base station 120 to Xn added as a secondary base station to the terminal apparatus 110, the secondary base station to add the base station 120 the feedback request acknowledgment to the primary base station, wherein the synchronization signal comprises a transmit beam 120 of the base station configuration information, in some examples may also comprise random access configuration information. Next, the main base station includes this information in, for example, RRC connection reconfiguration message to the terminal device 110 for synchronizing a base station 120 and completed. In another example, the terminal device 110 can obtain the base station 120 transmit beam configuration synchronization signal transmitted from the base station 120. For example, the terminal device 110 may estimate base station 120 transmit beam configuration by measurement of the synchronization signal.
[0072]
Beam scan results report
[0073]
The following will be briefly described base station apparatus for matching a terminal-side transmission beam feedback. In the embodiment of the present disclosure according to the embodiment, in order to make the terminal device 110 to the base station side to match the transmission beam to the base station 120 also needs some way to indicate the transmission beam. It may indicate that the base station side transmit beams by matching implicit or explicit manner, thereby performing beam scanning result report. This beam scanning result report may be included in a random access process performed by the terminal device. Of course, according to some embodiments, feedback of the transmit beam is directed to the base station side may be separated from the preamble transmits the random access, for example, it may be sent before or after the random access preamble.
[0074]
According to some embodiments of the present disclosure, the terminal device transmits a random access preamble the base station may indicate the transmit beams in the downlink side and the reception side termination apparatus acts, as described herein below. For example, in the case of the terminal device using the received beam forming, the terminal device transmits a random access preamble may be indicative of the downlink side terminal device matches the received beam of the base station side transmit beam; for the terminal device does not use the receive beamforming case, the terminal device transmits a random access preamble may indicate that the transmission beam in the downlink the base station side device-side terminal is not received using beamforming behavior matches.
[0075]
In some embodiments, the terminal device 110 based on random access configuration information transmitted random access preamble, the base station side to indicate the transmission beam in the downlink side terminal device matches the received beam. In some embodiments, the random access configuration information may include a base station side receive beam corresponding relationship between the plurality of random access time windows. In one embodiment, the correspondence relationship between a base station side may include a corresponding plurality of receive beams and a plurality of levels of random access time windows. Terminal device 110 may transmit a random access preamble based on the correspondence relationship. In one example, the base station is capable of receiving the random access preamble to identify the base station corresponding to the transmit beam at a particular time window side. This is an example of the transmission beam indicates a match by way of an implicit base station side.
[0076]
In some embodiments, it may also be a random access preamble by a subsequent uplink message, such as an additional bit, etc., indicate the base station side transmission beam in the downlink side terminal device matching the reception beam, which is a significant exemplary embodiment of a style.
[0077]
Below in connection with FIGS. 3A to FIG. 14 described in accordance with a first aspect of the present disclosure, the disclosed transceiver main synchronization signal according to the present embodiment of the disclosed embodiments. According to some embodiments, transmitting a synchronization signal to the device-side terminal receives the synchronization signal information, and obtains the base station transmits the transmission beam using the synchronization signal from the terminal apparatus through the base station side of the forming beam. After transmitting terminal device the acquired beam information back to the base station, whereby the base station can know which transmit beams used for transmitting a synchronization signal from the feedback, to use for subsequent communications. According to some embodiments, the present disclosure may be performed in accordance with a first aspect of the operation of the electronic device by the base station side and a terminal device side. According to a first aspect of the operation of the present disclosure will be described in detail.
[0078]
For example base station side of the electronic device
[0079]
3A illustrates an exemplary electronic device for a base station-side embodiment of the present disclosure, wherein the base station may be used for various wireless communication systems. The electronic device 300A shown in FIG. 3A may include various units to implement according to a first general aspect of the present disclosure. 3A, the electronic device 300A may comprise, for example, synchronization signal transmission unit 305 and a feedback acquisition unit 310. According to one embodiment, the electronic device 300A may be, for example, the base station 120 in FIG 1 or may be part of base station 120 may be a control device for a base station (e.g., base station controller) or to a base station apparatus thereof, or portion. Various operations described below in connection with the base station may be implemented by the electronic device unit 300A of 305, 310 or other unit.
[0080]
In some embodiments, the synchronization signal transmission unit 305 may be configured to transmit a synchronization signal to the terminal device through the beamforming, transmit the transmit beam to indicate information used by the synchronization signal. A synchronization signal transmitting unit 305 may be configured to transmit beams with different transmission beam based on a synchronization signal transmitted to the terminal device repeats, the synchronization signal includes transmitting the synchronization signal information of the transmit beam is used. In one example, the synchronization signal itself may include an indication or information transmission beam transmitting the synchronizing signal is used. In another example, the transmission resource used for transmitting a synchronization signal such as frequency, time parameters may indicate the emitter beam information. In some embodiments, the information may comprise the transmit beam transmit beam ID, each of the transmit beam corresponding to the transmission beam ID particular orientation.
[0081]
In some embodiments, the feedback acquisition unit 310 may be configured to obtain feedback from the terminal device, the feedback information including transmission beam for transmission beam management. The transmission beam corresponding to the information transmission beam can be matched to the receiving terminal device or the highest matching degree transmit beam. In one example, the feedback acquisition unit 310 may receive direct feedback transmitted from the terminal device. In another example, feedback by the feedback acquisition unit 310 may be obtained, for example, Xn interfaces the base station from another terminal device, for example, from the primary base station double connections. And providing feedback to the feedback process will be specifically described below. The electronic device 300A may transmit the beam information obtained from the feedback, e.g. transmit beam ID. The transmit beam transmission beam ID is indicated by the terminal device receives the matching transmit beam, electron beam emitting devices 300A may manage each terminal equipment with matching, using the transmission beam in the downlink communication with the subsequent terminal device .
[0082]
An example of the electronic device-side terminal equipment
[0083]
3B illustrates an exemplary electronic device for the terminal side apparatus embodiment of the present disclosure, wherein the terminal device may be used for various wireless communication systems. The electronic device 300B shown in FIG. 3B may comprise various units according to the present disclosure to implement a first general aspect. As shown in FIG. 3B, in one embodiment, the electronic device 300B may include a synchronization signal receiving unit 325 and the unit 330 to provide feedback. According to one embodiment, the electronic device may be, for example, 300B in FIG. 1 or the terminal apparatus 110 may be part of the terminal device 110. Below in connection with various operations of the terminal device can be described by the unit of the electronic device 325, 330, 300B or other unit implementation.
[0084]
In some embodiments, the synchronization signal receiving unit 325 may be configured to receive a synchronization signal to the synchronization signal based on the received information to obtain the base station transmits the transmission beam used for the synchronization signal. In one embodiment, the synchronization signal receiving unit 325 may be configured to transmit beam configuration based on the base station side of the wireless communication system to receive the synchronization signal. Alternatively or additionally, the synchronization signal receiving unit 325 may obtain the above information transmission beam transmission resource used for transmitting a synchronization signal such as time or frequency parameters. In some embodiments, the information may comprise the transmit beam transmission beam ID.
[0085]
In some embodiments, feedback providing unit 330 may be configured to provide feedback to the base station, or the feedback may include information indicative of the transmit beam for the base station for transmitting a beam management. In one example, the transmit beam corresponding to the feedback beam is emitted with the electronic device 300B receives the highest matching or matching transmission beam (e.g., determined based on the synchronization signal transceiving). In one example, the feedback unit 330 may provide feedback to the transmitting base station directly transmits the synchronization signal to the electronic device 300B. In another example, the feedback unit 330 may provide feedback to the base station forwards by another base station (e.g. base station by a double primary connection).
[0086]
The following disclosure will be described in detail according to the synchronizing signal and the transceiver embodiment, the synchronizing signal may contain or indicate base station transmits a transmit beam information of the beam. For example, the synchronization signal itself can be by the inclusion of various additional bits to indicate the particular transmission mode information transmitted beam transmits the synchronization signal or the sync signal may be indicative of transmit information transmission beam of the synchronizing signal with a different synchronization sequence or.
[0087]
Example synchronization signal
[0088]
According to an embodiment of the present disclosure, the base station transmits the synchronization signal may be of different types. Each type of synchronization signal may generally include respective synchronization signal sequences. In some embodiments, the synchronization signal may comprise at least a primary synchronization signal and secondary synchronization signal. In other embodiments, the synchronization signal may further include a third synchronization signal (Tertiary Synchronizing Signal, TSS). In general, the need to send the synchronization signal in the frequency domain time domain resource. In some embodiments, the plurality of synchronization signals may be continuous in the time domain; in other embodiments, the plurality of synchronization signals in the time domain may be discontinuous. In some embodiments, the plurality of synchronization signals may be continuous in the frequency domain; In other embodiments, the plurality of synchronization signals in the frequency domain is discontinuous.
[0089]
4A to 4D illustrate exemplary frequency domain resource according to a time-domain signal for synchronizing an embodiment of the present disclosure. In some embodiments, transmitting a synchronization signal for frequency domain resource may be relatively fixed, for example, may be several resource blocks or sub-carrier frequency band center, the corresponding time domain resource may be located at a predetermined position in the downlink frame. 4A and 4B, the frame structure of the LTE system as an example, frequency domain resource for transmitting primary synchronization signal and secondary synchronization signal may be the center of the band number (e.g. 6) resource blocks (not specifically shown ), a primary synchronization signal for transmitting the time-domain resources may be located in a downlink frame number for a OFDM symbol of the first slot of the sub-frame 5, for transmitting a secondary synchronization signal in the time domain resources may be located in another OFDM symbol of the first slot of the downlink frame of the subframe. In the example of Figure 4A, the primary synchronization signal and secondary synchronization signal in the time domain it is discontinuous. FIG 4B is similar to Figures 4A, but the primary synchronization signal and secondary synchronization signal in the example of FIG. 4B are continuous in the time domain. As is known, 4A, and includes a plurality of sub-frames of the frame shown in Figure 4B is repeated in the time domain, each frame may have radio frame number, radio frame number that has a certain period. For example, in the LTE system, a radio frame number is also referred to as a system frame number (the SFN), which has a period of 1024, for each frame can be identified in the range of 1024 frames.
[0090]
4C, can use a frequency domain resource block to transmit a primary synchronization signal by using another frequency domain resource blocks to transmit a secondary synchronization signal. In the example of FIG. 4C, a primary synchronization signal and a secondary synchronization signal in the frequency domain it is discontinuous. Different types of synchronization signals on the time domain frequency domain resource arrangement more see FIG 4D (i.e. arrangement (1) to (5)).
[0091]
Further, as shown in Figures 4A and 4B, the time domain resource used to transmit different types of synchronization signal may have a certain positional relationship. The order may include the positional relationship between the time domain resource. For example, in FIG. 4A symbol preceding a secondary synchronization signal, the primary synchronization signal for the symbol after; and FIG. 4B symbol preceding a primary synchronization signal, a secondary synchronization signal symbol after. Alternatively or additionally, the positional relationship between the spacer may include a time domain resource. For example, in FIG. 4A for three symbol intervals between symbols primary synchronization signal and secondary synchronization signals; 0 symbols spaced between symbols in FIG 4B for the primary synchronization signal and secondary synchronization signals. Although not specifically described herein, it should be understood that frequency domain resource block used to transmit the synchronization signals of different types may have a similar positional relationship. Further, the positional relationship can also be a time domain and frequency domain position combination relationship. In some embodiments, the system information may indicate a relative position in the time domain or the frequency domain through a different type of synchronization signal. In one example, the system information may include a duplex type of wireless communication systems and different cyclic prefix lengths in at least one. For example, the sequence between the primary synchronization signal and secondary synchronization signals may represent the type of duplexing (e.g., the TDD represents a first primary synchronization signal, after showing the FDD), the spacing between the primary synchronization signal and secondary synchronization signals may represent different cycle prefix length (e.g., three symbols represent intervals extended cyclic prefix, etc.).
[0092]
4D shows a synchronous signal in the time domain frequency domain resource exemplary arrangement of five types (the horizontal direction represents the time domain, the vertical direction represents the frequency domain). As previously described, these arrangements (time domain, frequency domain, or combinations thereof) between various types of synchronization signals positional relationship may represent different system information. In an exemplary arrangement of FIG. 4D in common that the respective synchronization signal is continuous, i.e., in the time domain, frequency domain or the frequency domain is continuous. It is believed that these different types of continuous synchronizing signal-forming block synchronizing signal (SS Block). It may carry a synchronization signal is repeatedly transmitted to each synchronization signal block. For a given frequency band, a synchronization signal based on a default block may correspond to a subcarrier spacing of N OFDM symbols, where N is a constant. The terminal device may obtain at least a radio frame slot index and symbol (e.g. OFDM symbol) block synchronization signal from the index. In one example, the synchronization signal block may further include a broadcast channel, the terminal apparatus derive the radio frame number. For example, in the arrangement (5), a block synchronization signal may further include a broadcast channel PBCH.
[0093]
According to some embodiments of the present disclosure, the synchronization information may include information about the base station transmits transmission beam of the transmission beam used for the synchronization signal. For example, different blocks may include different synchronization signals of the synchronization signal content (e.g., different synchronization signals of different sequences or additional information bits) to indicate information of the transmission beam transmitted sync signal blocks used (transmission beam ID).
[0094]
Transmitting the time window synchronization signal / synchronizing signal sample blocks
[0095]
In general, the synchronization signal may be transmitted in a specific time window the downlink frame, the time windows may be arranged in a certain time period or mode. The time window may correspond to the synchronization signal / sync timing signal blocks particular transceiver (occasion). In the disclosed embodiment according to the present embodiment, since a synchronization signal is transmitted using beam forming, and therefore require more synchronization signal transmission window, for: repeating a single beam 1) transmits a plurality of different beams using, and 2) send. Transmitting a synchronization signal blocks to an example, in some embodiments, a plurality of the time window synchronization signal block in the downlink frame can be dispersed i.e. discontinuous. Referring to a respective one example of Fig. 5A. 5A, the time window for transmitting the synchronization signal block at a constant cycle arrangement, each synchronization signal block may comprise, for example, primary synchronization signal, a secondary synchronization signal and a broadcast channel.
[0096]
In some embodiments, it may be a plurality (e.g. 2, 4, 8, 12, 16) in the time domain synchronization signal blocks concentration (i.e., continuously) to form a burst synchronization signal (SS Burst), to using transmit beamforming transmission synchronization signal. In the time domain, the synchronization signals may include a plurality of consecutive burst synchronization signal blocks. In one example, the number, the length of the burst synchronization signal may be included in the block sync signal representation. Synchronization signal may have a plurality of intervals between bursts in the time domain. Since the synchronization signal burst plurality of synchronization signal blocks can be concentrated, so that the base station and the terminal device to send and receive at the same time to complete the beam scan synchronization signal faster. One example of a synchronization signal burst Referring to Figure 5B, wherein the synchronization signal length of the burst 12. 5B, the sync signal block 12 for transmitting a time window focused on each other to form a larger time window for the synchronization burst signal, and a plurality of time windows may be larger at a constant cycle (e.g., SS burst period) are arranged. Each sync block signal may also include, for example, primary synchronization signal, a secondary synchronization signal and a broadcast channel.
[0097]
In a wireless communication system, the transmission time window synchronization signal is often designated as a specific time parameter corresponding downlink frame. Thus, FIGS. 5A and 5B in FIG burst synchronization signal, the synchronization signal and the synchronization signal blocks may be associated with the time parameter of the downlink frame via a time window, the time parameter may comprise exemplary OFDM symbol index, a radio frame and a radio frame slot index number. For example, the burst synchronization signal may be determined, block synchronization signal or a synchronization signal located in one radio frame, and in particular is in one OFDM symbol of a slot. That is, the terminal device can be identified based on the received OFDM symbol index block synchronization signal or a synchronization signal, one or more radio frames and the radio slot index in the frame number.
[0098]
According to the present disclosure, some embodiments of a synchronization signal transmission scheme (e.g., transmission time window, time parameters, etc.) may transmit information indicating a synchronization signal used for beam transmission. For example, in some embodiments, these parameters may be combined with the time for identifying transmit beam configuration (e.g., by the terminal device) transmitting a synchronization signal used for beam transmission.
[0099]
Transmitting the synchronization signal of the base station side
[0100]
According to some embodiments, the base station side may send the synchronization signal based on transmit beam configuration. As previously described, the base station-side repeating pattern of the plurality of transmit beams can be represented by the transmission beam configuration. Generally, in order to express the transmit repeating pattern beam, emission beam or the configuration may include information indicating at least two aspects, i.e., the number of beams and the number of repeatedly transmitted using each transmit beam (e.g., synchronization signal) transmitted. In some embodiments, the transmit beam configuration can also specify the time parameter of at least one synchronization signal transmitted.
[0101]
In some embodiments, the transmit beam can be arranged to specify the number of the base station for transmitting a synchronization signal transmission beam and the number of each transmit beam transmitted continuous use. 6A and FIG. 6B shows a configuration of an exemplary embodiment of a base station side transmission beam of the embodiment of the present disclosure. 6A, the assigned base station transmit beam configuration 600A side are four beams TX_B1 to TX_B4 for transmitting a synchronization signal, and can be used continuously for each transmit beam 3 transmits the synchronization signal. 6B, the transmit beam configuration 600B specified base station 12 side to the transmit beam TX_B1 TX_B12 for transmitting a synchronization signal, and may be used only once each transmit beam transmitted synchronization signal. In some cases, it may represent transmit beams arranged in the form of N × M times. For example, in FIG. 6A four different transmit beams, each transmit beam repeated three times exemplary configuration referred transmit beam 4 × 3 times configuration. Similarly, the configuration of the example of FIG. 6B may be simply referred as 12 × 1 time configuration. The transmit beam configuration is only an example. In various embodiments, a plurality of transmit beam may be any number of repetitions may be 1 or more times.
[0102]
In the respective embodiments, the electronic device 300A may transmit a synchronization signal transmitted to each transmit beam in the beam configuration based on the transmit beam, using a plurality (e.g., 4 or 12), and the continuous use of each transmit beam of transmitting a synchronization signal specified number of times (e.g. 3 or 1) (i.e., transmit beam scanning).
[0103]
According to some embodiments of the present disclosure may also be used sequentially for each transmit beam transmitting a synchronization signal once, then repeat the process for a specified number of times, whereby the transmit beam scanning.
[0104]
In some embodiments, the transmit beam configuration can be used to specify the number of the base station transmitting the synchronization signal transmit beams of different levels and the number of continuous use different levels of each transmit beam transmitted. 6C shows an exemplary configuration of a hierarchical transmission beam in embodiments where the base station side transmission beam of the embodiment of the present disclosure. Suppose the base station side of the first level are four beams, each beam having a first level of the transmit beam 2 transmitting a second level. First level of transmit beams can be arranged as shown in FIG 6A, the second level can for example transmit beam configuration shown in Figure 6C. The second emission beam configuration level specified 600C has eight second level to the transmit beam TX_B1,1 TX_B4,2 for transmitting a synchronization signal, and the synchronization signal may be transmitted continuously using the second level of each transmit beam 3 times. In some cases, it may represent the same hierarchical transmit beams arranged in the form of N × M times. For example, FIG. 6C first level emission beam configuration can be represented as 4 × 3 times configuration, a second level emission beam configuration can be represented as 2 × 3 times configuration (where "2" transmit beam corresponding to the second level a first single level emission beam) or 8 × 3 times configuration (where "8" corresponding to the second level a first level of transmit beams emitted beam entirety).
[0105]
In the respective embodiments, the electronic device 300A may be configured to each transmit beam using different levels of the transmission synchronization signal, and using each transmit beam continuously transmits a synchronization signal for a specified number of times.
[0106]
In some embodiments, the transmit beam configuration can also instruct the base station side transmit beam corresponding relation to a plurality of time windows the synchronizing signal, for example by sending the particular synchronization signal indicative of a specific window of time correspondence between the transmitted beam. For example, the transmit beam configuration 600A may specify a time window (e.g., to specify the time window comprises a particular frame, subframe, slot, and / or the like of the OFDM symbol time parameter) of TX_B1 primary synchronization signal transmitted using transmission beam. In this case, the electronic device 300A may transmit a synchronization signal using the transmit beam TX_B1 based on the time window / time parameter, and a time window based on the arrangement of the synchronization signal and transmit beams arranged next transmission continues. Accordingly, the electronic device 300B may beam configuration based on a time window of successful reception of the synchronization signal / time parameters and transmit the transmit beam to determine the transmission synchronization signal is used. Specific examples may 7A to 7D described below with reference to FIG.
[0107]
7A to 7D illustrate a correspondence between the transmit beam to the present embodiment is disclosed with a block sync signal (or synchronization signal). 7A and 7B illustrate an exemplary correspondence relationship in configuration 4 × 3 times, wherein FIG 7A corresponds to the block synchronization signal dispersed in time, corresponding to FIG. 7B block synchronization signal burst synchronization signal is formed .
[0108]
In 7A, the correspondence relationship between the base station and the plurality of beam emission side window of time based on the synchronization signal, the synchronization signal at three positions of the first group on the block, the block synchronization signal are transmitted using a first transmit beam. Three blocks in the position of the second set of synchronization signals on the synchronization signal blocks are transmitted using the second transmit beam. Next, a third group, the block synchronization signal on the position of the fourth group, respectively, each using the third and fourth beams transmit a synchronization signal transmission block. It is noted that, FIG. 7A shows only one cycle of an exemplary configuration of the beam may be arranged to repeat the transmission synchronization signal at a later time.
[0109]
In 7B, the sync blocks are arranged on the signal time synchronization burst signal, the burst signal may be transmitted based on a predetermined cycle. Wherein the synchronization signal length of the burst signal exactly 12 sync blocks, and therefore transmission 12 matches the secondary synchronization signal at four times × 3 configuration. In some embodiments, there may be synchronization signal length of the burst transmit beam configuration is not exact match (e.g., a length of the synchronizing signal and the burst 15 times 4 × 3 configuration may not exactly match), can be by pre-configured to make a match. In Figure 7B, for the first burst synchronizing signal, the synchronizing signal in the three positions of the first group of blocks, the block synchronization signal are transmitted using a first transmit beam. Three blocks in the position of the second set of synchronization signals on the synchronization signal blocks are transmitted using the second transmit beam. Next, a third group, the block synchronization signal on the position of the fourth group, respectively, each using the third and fourth beams transmit a synchronization signal transmission block. Thereafter, for the next burst synchronization signal, repeating the above-described arrangement for transmitting the synchronization signal.
[0110]
In addition to the 4 × 3 times configuration, you can also be selected according to different transmit beam configuration, for example 6 × 3 times, 8 × 2 second-class configuration. Particularly, in the case of burst synchronization signal, for example, burst length of the synchronizing signal 12, may also be present, for example, 2 × 6 times, 3 times × 4, 6 × 2 times, 12 times × 1 configuration; moreover, there may also be other lengths burst synchronizing signal and the corresponding transmit beam configuration (e.g., 5 × 3 times configuration, a length of the synchronizing signal burst 15).
[0111]
7C and 7D show views of the 12 × 1 configuration, with reference to the above description of FIGS. 7A and 7B are not repeated here for an understanding of FIGS. 7C and 7D. Transmit beam configuration selected depending on the number of transmit beams include, for example, supported by the base station, the number of other terminal equipment transmitting support beam. For example, in the case of a large cell coverage, the synchronization signal required to cover a long distance, thus requiring a large base station side transmit beamforming gain, each transmit beam angle can be relatively narrow, a larger number of corresponding transmit beams . In this case, for example, may choose to 6 × 2 times, 12 times × 1 configuration. Conversely, at a smaller cell coverage case where each transmit beam angle may be relatively wide, correspondingly fewer transmit beams. More receive beams at the terminal device, the selection may be e.g. 2 × 6 times, 3 times × 4 configuration. In the case where the terminal device uses the full width of a receive beam, may choose to 12 times × 1 configuration. Since the synchronization signals transmitted beam configuration of the base station is not specific to a cell-specific terminal device, the base station may in some examples, the statistics receive beamforming capability of the terminal Now that its services, the transmit beam set configured according to the principle of fairness.
[0112]
As described above, the case where the transmit beam corresponding relationship with the synchronization signal a time window in the known base station side, the time window may be based on the successful reception of the synchronization signal / time parameters and transmit beams configured to determine to transmit the synchronization signal is used transmit beam. In Figure 7A an example, assume a first known transmit beam 701 corresponding to the time parameter t1, and the terminal apparatus receives the sync signal from the block synchronization signal and determine the transmission time parameter t2 702 the beam. Assume synchronization signal block period T, the (t1-t2) / T represents the transmission beam is 702 times of the transmit beam 701 after transmission beam transmission. In the example of FIG. 7A, the terminal device may determine the transmit beam 702 is emitted beam 9th transmitted after transmission beam 701, and 4 × 3 times combined configuration with four beams, and each beam was repeated three times, may be determined transmit beam 702 is the fourth transmit beam. The method is equally applicable to 7B, the period is only to be considered include cycle sync burst period and the burst synchronization signal block.
[0113]
A synchronization signal receiving device side terminal
[0114]
According to some embodiments, the terminal device may be a variety of ways to receive the synchronization signal from the base station side. According to one embodiment, if the terminal device does not use beamforming to receive the synchronization signal (i.e., using the full width of the receive beam), the terminal electronic device apparatus side 300B may only need to use the full width of the beam receiving base station through a different transmit beams transmitted synchronization signal. According to one example, for a specified number of successive transmission of each transmit beam, the beam may be used full width of all the transmission beam number received, or only received a transmit beam, for example, the first transmit beam is transmitted. According to another example, all of the transmit beam for transmission until the specified number of sequentially emitted, may be used full width of beam reception of all the number of the transmit beam or beams receiving all transmit only once, for example, the first transmission of all transmission beam.
[0115]
Another embodiment, if the terminal device using the received beamforming according to need, the electronic device-side terminal device 300B may be configured to transmit a specified number of base stations each transmit beam used in the transmission, different receiving beam receiver synchronization signal (i.e., reception beam scanning). As one example, the base station transmits continuously transmitted a specified number of each transmit beam and receive beam may be used to receive a different synchronization signal transmitted from the same transmit beam. According to another example, all of the transmit beam for transmission until the specified number of times successively transmit, receive beam can use the same receiving each transmitted sequentially transmit all beams, or using different receive beams received transmit beams, each reception beam until all capable of receiving all transmit beams. In the above embodiment, in cases where the received beam scanning, the electronic device-side terminal apparatus 300B need has been known or able to transmit its beam configuration, thereby determining a reception beam arrangement itself.
[0116]
The following example depicts the receive beam is arranged in the terminal device used by a synchronization signal is received at the terminal device.
[0117]
As previously described, the terminal device may or may not use the receive beamforming base station receives a synchronization signal transmitted by the transmit beam forming. 8A illustrates an exemplary reception beam disposed at four transmit beams arranged × 3 times a terminal device. 8A receive beam arrangement of Figure 1 and 2 do not correspond to the terminal device using the received beams case shaped to receive the synchronization signal. In this case, the electronic device may use the received beam 300B is disposed generally 1, i.e. each transmission of each received transmission beam using the reception beam full width (e.g. RX_B1). Advantages in that a receive beam is arranged for each transmit beam by transmitting a plurality of times are received, a diversity gain can be obtained. When receiving the synchronization signal, the electronic device 300B may be based on the content synchronization signal correlation calculation blocks, transmit or receive beams above a certain predetermined maximum threshold is the correlation of the emitted beam matches. For example, when the degree of correlation of the received synchronization signal is higher than a transmit beam 2 emitted beams of other, can be considered transmit beam 2 and the full width of the receive beam match. In a preferred main specific example, consider the sequence number of the primary synchronization sequence set signal is much smaller than the number of secondary synchronization sequences in the sequence set signal, designing electronic devices 300B is first received synchronization signal blocks transmission beam carrying a set of primary synchronization signal sequence and the sync signal sequences stored in each of the correlation operation, wherein the matching determining transmit beam (primary synchronization signal and matching sequences) according to the degree of correlation of each transmit a primary synchronization signal sequence carried by the beam, and then the secondary synchronization signal sequence and the SSS sequence set sync block signal transmission beam carrying matching in each of a correlation operation to determine a match for a secondary synchronization signal sequence, the electronic device 300B according to the next match for a primary synchronization signal sequence and SSS sequence calculated physical cell identity corresponding cell (PCI), e.g. PCI = PSS + 3 * SSS, and downlink reference structure signal to decode PBCH PCI determine. In some examples, a value of 0 ... 2 PSS (PSS actually three different sequences), a value of 0 ... 167 SSS (SSS solid of 168 different sequences), using the above formula available PCI range It is from 0 ... 503, Thus the presence of PCI in the physical layer 504. In the example of the synchronization signal further comprises a third synchronous signal, and finally the third match the synchronization signal sequence and calculated according to formula redesigned PCI PCI (Non-specific formula is present disclosure is intended to solve the technical problem, not repeat them here). Thereby, can effectively reduce the complexity of the present disclosure based synchronization scheme, in particular the next generation of cellular networks SSS number may grow to thousands, then the preferred exemplary technical effect is particularly significant. In the case of the electronic device 300B its transmission beam of the base station configuration, only the repeated part can receive the transmission of each transmit beam is transmitted. For example, the electronic device may use the received beam arrangement 300B 2, i.e., for each transmit beam is transmitted a plurality of times, only one receiver (e.g., receiving only first transmission) using the full width of the reception beam (e.g. RX_B1). Advantage is that the reception beam arrangement 2 can save the receiving terminal device resources (e.g., energy consumption).
[0118]
8A receive beam in the arrangement of FIG. 3 and 4 correspond to the terminal apparatus use two or three different reception synchronization signal of receive beams. In this case, a plurality of times for each transmission of the transmit beam, the electronic device 300B require different reception beam is received. To this end, the electronic device 300B needs to know the transmit beam configuration of the base station to schedule a respective receive beam. In the receive beam is arranged 3 or 4, since the electronic device 300B its repeated three times to each transmit beam, it is possible to arrange their own reception beam in the three replicates, each reception beam such that at least 1, in order to achieve beam scanning the goal of. Figure 8A shows only one cycle of different transmit beam transmitted, the next cycle can follow thereafter.
[0119]
For more than four transmit beams arranged × 3 times, when the terminal device has received more than three beams, one cycle different transmit beam transmitted can not complete all the received beam scanning. However, since the electronic devices transmit its beam configuration 300B, which may be arranged in the next cycle of the other receive beams to scan. In light of the present disclosure, those of ordinary skill in the art can be contemplated various reception beam configuration to achieve beam scanning modification, such modifications fall within the scope of the present disclosure.
[0120]
Further, FIG. 8A is a schematic arrangement only the time window, which may represent the relative positions of the time window, but they do not represent the exact location of the downlink frame. For example, FIG. 7A and 7C can be used as a plurality of discrete time windows, or may be used as shown in FIG. 7B and 7D plurality of successive time windows. Further, the drawings herein and the size of the time window of the distance therebetween is illustrative only, are not necessarily drawn to scale.
[0121]
It should be understood that, in the hierarchical transmission beam configuration can be considered to FIG. 8A shows a first level and the transmit beams corresponding to various reception beam arrangement. After the first level of the transmit beam can be followed by a second level of transmit beams. 8B shows the second level of the terminal device configuration and transmit beams exemplary reception beam arrangement. The first level of the hierarchical configuration of the transmission beam may be arranged above 4 × 3 times the transmit beam configuration, the configuration may be a second level of 2 × 3 times the transmit beam configuration, i.e., corresponding to each transmit beam crude two thin transmit beams, each transmission beam fine repeated three times (for simplicity, shows only the fine beam and the first two beams corresponding crude). After one example, transmitted using a first transmit beam level as in Figure 8A may be followed by a second level using the transmit beam is transmitted, the transmit beam arrangement shown in FIG. 8B. In FIG. 8B, each of the fine and coarse transmit beams to each transmit beam corresponding to the number of transmit beam successively repeated configurations indicated. For example, the transmit beam crude TX_B1 transmission beam corresponding to the fine TX_B1,1 first repeated 3 times, followed by TX_B1,2 also repeated three times, thus completing the fine scanning the transmitted beam and the first crude TX_B1 corresponding transmit beam. Next, sequentially scanning the transmitted beam and a fine coarse next transmit the corresponding beam.
[0122]
Similar to FIG. 8A as described in FIG. 8B, the receive beam arrangement 1 and correspond to the case where the terminal device 2 does not use the receive beamforming. In this case, the electronic device 300B may receive beams used arrangement 1, i.e. each transmission of each received transmission beam using the reception beam full width (e.g. RX_B1). Advantages in that a receive beam is arranged for each transmit beam by transmitting a plurality of times are received, a diversity gain can be obtained. When receiving the synchronization signal transmitted beam transmitted through the small electronic device 300B may be based on the content synchronization signal correlation calculation blocks, transmit or receive beams above a certain predetermined maximum threshold is the correlation of the receive beams transmit matching pair. For example, the case when the correlation synchronization signal received TX_B2,1 than other transmit beam, and may be considered TX_B2,1 RX_B1 match. In the case of the electronic device 300B its transmission beam of the base station configuration, the electronic device 300B may also use the reception beam arrangement 2, which is repeatedly transmitted for each transmit beam, only the receiving section for sending. For example, a full width of a receive beam (e.g. RX_B1) received only once (e.g., only the first received transmission). Advantage is that the reception beam arrangement 2 can save the receiving terminal device resources (e.g., energy consumption).
[0123]
FIG. 8B receive beam arrangement 3 and 4 correspond to the terminal apparatus use two or three different reception synchronization signal of receive beams. In this case, a plurality of times for each transmission of the transmit beam thin, require different electronic apparatus 300B receives reception beam. To this end, the electronic device 300B needs to know the transmit beam configuration of the base station to schedule a respective receive beam. In the receive beam is arranged 3 or 4, since the electronic device 300B its fine each transmit beam repeated three times, and therefore can organize their reception beam in three replicates, each reception beam such that at least 1, in order to achieve a beam the purpose of the scan. 8B shows a cycle different fineness transmit beams transmitted. In the case where the emission beam scanning hierarchical, after completion of the fine scanning beam emitting first cycle, the next cycle can be rough and fine scan transmit beam emitted beam scanning. In light of the present disclosure, those of ordinary skill in the art can be contemplated various reception beam configuration to achieve beam scanning modification, such modifications fall within the scope of the present disclosure.
[0124]
It should be appreciated that, in the example of FIG. 8B, a second level of all the need to scan transmit beam 24 (8 × 3 times) the time window is reached. Thus, it may be desirable to complete the burst length of two sync signal 12.
[0125]
As previously described, may be the length of the transmit beam configuration match the synchronization signal burst by previously arranged, such that in a case where the number of times one or repeated transmission beam may transmit its entire beam configurations. For example, the length of the synchronization signal 12 and the four burst times × 3 configuration is matched. In the case where the length of the synchronization burst signal 12, once that there are four transmit beams, each transmit beam may be its repeated three times; and vice versa.
[0126]
Transmission beam configuration of the terminal device is obtained
[0127]
In some embodiments, in order to facilitate the synchronization signal receiving terminal apparatus, the terminal equipment needs to know the configuration of a base station side transmission beam. However, before the synchronization signal is successfully received, the terminal apparatus can not obtain any information about the signaling transmission beam from the base station configuration. According to the disclosure of the present embodiment, the terminal device can be obtained by at least the following ways transmit beam configuration, i.e., transmit beam configuration is obtained by means of other base stations, and / or transmit beam configuration obtained by measuring the emission beams.
[0128]
According to some embodiments of the present disclosure, an electronic device for a base station 300A may be configured to transmit a beam configuration is passed to another base station serving the terminal equipment connected together by a double, the transmission beam configuration may indicate to the terminal by the other base station device.
[0129]
As is known, double connector (Dual Connectivity) is a terminal device to enable communication with a plurality of base stations, thereby increasing the data rate technology. For example, the terminal device can maintain a connection with both the first base station and the second base station. In the process of the first base station and the communication terminal device may be (e.g., a desired higher data rates) adding a second base station in accordance with a desired form double connector, the first base station becomes the master node, the second base station becomes a secondary node. In some cases, the master node may be the eNB in ​​the LTE system, the base station may be a corresponding node 5G system, e.g. NR system gNB. According to an embodiment of the present disclosure, the addition operation to add the following secondary node (Addition) achieved by the operation.
[0130]
FIG 9 illustrates an exemplary operation of the secondary node is added according to the present embodiment of the disclosure. In FIG. 9, the electronic device may correspond to a second base station 300A, through the exemplary operating device is formed so that the terminal connected to the double two base stations. At 902, the first base station may add request message, the second base station to request the radio resources allocated for communication with a terminal device to a second base station transmits the secondary node. Here, the first base station may indicate a group of primary cells (the MCG) and a terminal apparatus configuration of the terminal device capability and services, and may provide a secondary cell group (SCG) from the second base station for the terminal device requires the addition of measurement cell. After 904, the second base station may grant the resource request a radio resource management entity, a resource allocation corresponding to a first base station transmits addition request ACK secondary node. Here, the second base station may trigger a random access may be performed in order to synchronize the secondary node configured radio resources. The second base station may provide SCG the first base station and the new radio resource PSCell primary cell among the SCG beam configuration. Of course, in some cases, the beam may comprise a beam configuration information further configuration information among the other cells of the SCG. At 906, the first base station may indicate the terminal device RRC connection reconfiguration, and instructs the terminal equipment transmit beam configuration. At 908, the terminal device may indicate to the RRC connection reconfiguration completion of the first base station. At 910, the first base station may instruct the secondary node to the second base station reconfiguration completion. Thus, the terminal device may be configured to process synchronization information to perform PSCell node based on the secondary emission beam obtained. As the second base station does not need to broadcast system information in addition to the secondary node other than the radio frame timing and SFN, information provision system (the initial configuration) to the terminal device through the first base station as the master node dedicated RRC signaling. SCG PSCell can obtain at least a synchronization signal (e.g. PSS, SSS and PBCH) from the radio frame timing, and SFN.

Claims

[Claim 1]An electronic apparatus of the base station side radio communication system, comprising processing circuitry, the processing circuitry is configured to: transmit beams with different configuration based on a transmission beam to the terminal device transmits the synchronization signal is repeated, the synchronization transmitting a signal indicative of the transmit beam can be information used by the synchronization signal; and obtaining feedback from the terminal device, the feedback information comprising transmit beams for transmission beam management.
[Claim 2]
The electronic device according to claim 1, wherein the beam information transmitting terminal device corresponding to the feedback transmission beam with the highest degree of match to the receiving terminal apparatus transmission beam.
[Claim 3]
The electronic device according to claim 1, wherein said transmit beam configuration can be used to specify the number of the plurality of base station transmitting the synchronization signals and the number of transmit beam transmitted by each transmit beam of continuous use, the processing circuitry further configured to: using the plurality of transmitters each transmit beam transmits beam synchronization signal, and the number of consecutive synchronizing signal transmitted using each transmit beam.
[Claim 4]
The electronic device according to claim 1, wherein said base station transmit beam configuration can be used to specify the number of transmit beams transmitting the synchronization signal and the number of different levels of transmission of each transmit beam of continuous use different levels of the the processing circuitry is further configured to: use the different levels of each transmit beam transmits a synchronization signal, and the number of consecutive synchronizing signal transmitted using each transmit beam.
[Claim 5]
The electronic device of claim 3 or claim 4, wherein said configuration further comprises a transmission beam corresponding relationship between a base station side signal transmission beam and the plurality of synchronization time window, the processing circuitry is further configured to: transmit beam based on the corresponding relationship between the plurality of synchronization signals using the time window to transmit a synchronization signal transmitted beam.
[Claim 6]
3-1 electronic device according to any of claims 5, wherein said processing circuitry is further configured to: configure the transmit beam is transmitted to another base station serving the terminal equipment connected together by a double, the transmit beam configuration indicated by the another base station to the terminal device.
[Claim 7]
The electronic device according to claim 6, wherein the other base station is a base station of the wireless communication system, a base station or a previous wireless communication system of the wireless communication system.
[Claim 8]
The electronic device as described in claim 7, wherein the wireless communication system is a system 5G, before generation radio communication system is an LTE system.
[Claim 9]
3 to 5 as an electronic device according to claim, wherein the different types of continuous signals forming synchronizing signal sync blocks, a plurality of successive sync block sync signal burst signal is formed.
[Claim 10]
The electronic device as claimed in claim 5, wherein the transmission beam ID information includes a transmit beam, and transmit the synchronization signal indicative of beam ID of one of the following: the synchronization signal comprises a synchronization sequence, the synchronization sequence itself represents transmit beam ID; in addition to the synchronization sequence, the synchronization signal further comprises additional information bits, the additional bits represent information transmission beam ID; time parameter or the sync signal is located.
[Claim 11]
The electronic device according to claim 10, wherein the time parameter of the transmitted synchronization signal based on the highest degree of matching of the transmit beam and transmit the transmit beam to determine the beam configuration information matches the highest transmit beam.
[Claim 12]
The electronic device as claimed in claim 11, wherein said parameter comprises a time index of OFDM symbol, slot index in a radio frame and a radio frame number.
[Claim 13]
The electronic device according to any of the preceding claims, wherein the synchronization signal comprises a primary synchronization signal and a secondary synchronization signal SSS PSS, or including a primary synchronization signal PSS, SSS secondary synchronization signal and a third synchronizing signal TSS.
[Claim 14]
The electronic device according to claim 13, wherein the information represents the system, the system information includes at least one relative position in the time domain or the frequency domain through different types of synchronization signals: Type duplex radio communication system ; or different cyclic prefix lengths.
[Claim 15]
An electronic apparatus in a wireless communication system, a terminal-side apparatus, comprising processing circuitry, the processing circuitry is configured to: configured to receive a synchronization signal based on the transmission beam of the base station side radio communication system, the synchronization signal can be transmission beam transmitting information indicative of the synchronization signal used by the base station; and providing feedback to the base station, the feedback information comprises a transmit beam for the management station to transmit beams.
[Claim 16]
The electronic device according to claim 15, wherein the transmission beam corresponding to the feedback transmission beam with the highest degree of match to the receiving terminal apparatus transmission beam.
[Claim 17]
The electronic device according to claim 15, wherein the transmit beam configuration can be used to specify the number of the plurality of base station transmitting the synchronization signals and the number of transmit beam transmitted by each transmit beam of continuous use, the processing circuitry further It is configured: to transmit the continuous use of the number of base stations each transmit beam in each transmission, using different receive beams received synchronization signal.
[Claim 18]
The electronic device according to claim 15, wherein said base station transmit beam configuration can be used to specify the number of transmit beams transmitting the synchronization signal and the number of different levels of transmission of each transmit beam of continuous use different levels of the the processing circuitry is further configured to: send the base station to the number of times of continuous use of each transmit beam in each transmission, using different receive beams received synchronization signal.
[Claim 19]
The electronic device of claim 17 or claim 18, wherein said configuration further comprises a transmission beam corresponding relationship between a base station side signal transmission beam and the plurality of synchronization time window.
[Claim 20]
Said another base station transmitting the acquired from the terminal device connected to the base by a double service together: as claimed in any one of 17 to 19, an electronic device according to claim, wherein the processing circuitry is further configured to beam configurations.
[Claim 21]
The electronic device according to claim 20, wherein the other base station is a base station of the wireless communication system, a base station or a previous wireless communication system of the wireless communication system.
[Claim 22]
The electronic device according to claim 21, wherein the wireless communication system is a system 5G, before generation radio communication system is an LTE system.
[Claim 23]
The electronic device 17 to one of claims 19, further comprising an omnidirectional antenna, wherein the processing circuitry is further configured to: prior to receiving a reception beam using different synchronization signals, by not using beamforming receiving the synchronization signal to obtain a base station side transmission beam configuration.
[Claim 24]
The electronic device 17 to one of claims 19, wherein the transmission beam ID information includes a transmit beam, the processing circuitry is further configured to obtain a beam emitted from the synchronization signal ID, and the indicated by synchronization signal of one transmission beam ID: synchronization signal comprises a synchronization sequence, the synchronization sequence itself represents a transmission beam ID; in addition to the synchronization sequence, the synchronization signal further comprises additional information bits, the additional bits represent information time parameters or synchronization signal is located; transmit beam ID.
[Claim 25]
The electronic device according to claim 24, wherein the processing circuitry is further configured to: transmit beam configuration parameters based on a time synchronization signal matching the highest transmit beam transmitted and determining the highest matching degree transmit beam the transmit beam information.
[Claim 26]
The electronic device according to claim 25, wherein said parameter comprises a time index of OFDM symbol, slot index in a radio frame and a radio frame number.
[Claim 27]
The electronic device according to any of the preceding claims, wherein the synchronization signal comprises a primary synchronization signal and a secondary synchronization signal SSS PSS, or including a primary synchronization signal PSS, SSS secondary synchronization signal and a third synchronizing signal TSS.
[Claim 28]
The electronic device as claimed in claim 27, wherein the processing circuitry is further configured to: obtain system information relative position in the time domain or frequency domain from a different type of synchronization signal, the system information includes at least one of: a duplex type of wireless communication system; or a different cyclic prefix lengths.
[Claim 29]
An electronic apparatus in a wireless communication system, a terminal-side apparatus, comprising processing circuitry, the processing circuitry is configured to: from the base station in a wireless communication system comprises receiving a primary synchronization signals and secondary synchronization signal, and PBCH plurality of synchronization signals for downlink synchronization blocks, a plurality of beam transmitting the synchronization signal transmitted by a different block base station side, and each sync block signal can indicate the base station transmits the synchronization signal information of the transmit beam used by block ; determined based on reception quality of the terminal device matching block synchronization signal; and transmitting to the random access preamble the base station to perform random access procedure, wherein the random access preamble can indicate that the base station transmits the matched transmitting a synchronization signal beam information blocks used for beam management for the base station.
[Claim 30]
The electronic device according to claim 29, wherein the synchronization signal by the reference signal sequence block sync signal block itself transmit a beam information indicating the base station transmits the synchronizing signal blocks used.
[Claim 31]
The electronic device according to claim 29, wherein said synchronization signal further comprises an additional block of information bits, transmitted sync signal transmission beam information of the block by using the additional information bits indicating the base station.
[Claim 32]
The electronic device according to claim 29, wherein the random access preamble sequence the base station indicating the preamble sync signal transmitter for transmitting the beam information blocks used in the matching.
[Claim 33]
The electronic device according to claim 32, wherein the plurality of preamble sequences for the same transmit beam information indicating a synchronization signal blocks, the electronic device determines a preamble sequence from a plurality of signaling from the base station and synchronization corresponding relationship between the transmit beam signal block.
[Claim 34]
An electronic device according to any of claims 29 to 33, wherein the processing circuitry is further configured for: receiving from the base station comprises a radio resource control signaling of random access configuration information, the random access the configuration information includes a correspondence relationship between a base station and a plurality of side beam random access timing; and configuration information according to the random access random access opportunity to select a particular transmit a random access preamble to indicate the base station transmits the synchronization signal matching emission beam information blocks used.
[Claim 35]
The electronic device 29 to one of claims 33, wherein said processing circuitry further configured to receive CSI-RS base stations transmit beams in a beam direction of transmitting a synchronization signal corresponding to the block matching , and a feedback terminal device matches the CSI-RS for beam information to the base station.
[Claim 36]
The electronic device according to claim 29, wherein the processing circuitry is further configured to use a plurality of receive beams of the plurality of received sync signal block, and determines the reception beam based on the reception terminal device matching quality.
[Claim 37]
The electronic device according to claim 36, wherein the wireless communication system having a beam symmetry, the processing circuitry is further configured to transmit the terminal device side reception beam using the beam corresponding to the matched device to the terminal said base station transmits the random access preamble.
[Claim 38]
The electronic device as recited in claim 37 used, wherein the processing circuitry is further configured to in a case where a predetermined time after transmitting the random access preamble does not receive the random access response of the base station, said terminal device side transmission beam around the beam retransmission transmit a random access preamble.
[Claim 39]
The electronic device as claimed in any one of claims 29 to 33 or 36 to 38, wherein the wireless communication system is a system 5G NR, GNB the base station, the terminal device includes a plurality of antennas through for beamforming transmission signal.
[Claim 40]
A method for a wireless communication system for a terminal device side, comprising: a wireless communication system from the base station receive the synchronization signal comprising a plurality of blocks, respectively, a primary synchronization signal and secondary synchronization signals and the PBCH for downlink synchronization a plurality of sync blocks signals transmitted by different base station side transmit beam, the synchronization signal block and each base station transmits the transmission beam can indicate the information used by the synchronization signal block; determining synchronization with the terminal device based on reception quality matching signal block; and transmitting a random access preamble to the base station to perform random access procedure, wherein the random access preamble transmission beam capable of indicating the base station transmits the synchronization signal information to the matching block to be used for the the base station for beam management.
[Claim 41]
The method according to claim 40, wherein the synchronization signal by the reference signal sequence block sync signal block itself transmit a beam information indicating the base station transmits the synchronizing signal blocks used.
[Claim 42]
The method according to claim 40, wherein said synchronization signal further comprises an additional block of information bits, transmitted sync signal transmission beam information of the block by using the additional information bits indicating the base station.
[Claim 43]
The method according to claim 40, wherein the random access preamble sequence the base station indicating the preamble sync signal transmitter for transmitting the beam information blocks used in the matching.
[Claim 44]
The method according to claim 43, wherein the plurality of preamble sequences for the same transmit beam information indicating a block synchronization signal, the method further comprises determining a preamble sequence from a plurality of signaling from the base station and synchronization corresponding relationship between the transmit beam signal block.
[Claim 45]
The base station receives from the base station comprises a radio resource control signaling of random access configuration information, the random access configuration information comprises: 40-1 Method according to any of claims 44, wherein said method further comprises and a plurality of side beams corresponding relationship between the timing of the random access; and configuration information according to the random access random access opportunity to select a particular random access preamble transmitter for transmitting a synchronization signal beam information block indicates that the matched base.
[Claim 46]
40-1 A method according to any of claims 44, wherein said method further comprises a CSI-RS received beams in a beam direction a base station transmitting a synchronization signal corresponding to the matching block emitted, and the feedback CSI-RS terminal device matches the beam information to the base station.
[Claim 47]
The method according to claim 40, wherein said method further comprises using a plurality of receive beams of the plurality of received sync signal block, and determines the reception beam based on the reception terminal device matching quality.
[Claim 48]
The method according to claim 47, wherein the wireless communication system having a beam symmetry, said method further comprising a receive beam corresponding to the matched using the terminal device side transmission beam terminal apparatus transmits the random access to the base station the preamble.
[Claim 49]
The method according to claim 48, wherein said method further comprises not received at the base station random access response within a predetermined time after transmitting the random access preamble, the terminal apparatus using the transmitting side transmit beam around the beam retransmits a random access preamble.
[Claim 50]
An electronic apparatus of the base station side radio communication system, comprising processing circuitry, the processing circuitry is configured to: utilize different base stations respectively transmit beam includes a main side to the terminal device transmitting the wireless communication system a synchronization signal, a secondary synchronization signal and a plurality of blocks PBCH synchronization signals for downlink synchronization, wherein each sync block signal can indicate the base station transmits the synchronization signal information of the transmit beam used by block; receiving from the terminal device of random access preamble to a random access procedure auxiliary terminal device, wherein the random access preamble transmission beam capable of indicating a synchronization signal information block matches with the terminal device; and determining according to the random access preamble side of the base station suitable for downlink transmission terminal apparatus for beam management in a transmit beam.
[Claim 51]
The electronic device according to claim 50, wherein the synchronization signal information of the transmit beam transmission block synchronization signal block by using a reference signal sequence sync signal block indicates the base station itself, the processing circuitry is further configured to placing different reference signal sequence in blocks of the plurality of synchronization signals to indicate different transmit beam information.
[Claim 52]
The electronic device according to claim 50, wherein said synchronization signal further comprises an additional block of information bits, transmitted sync signal transmission beam information of the block used by the base station indicating the additional information bits, the processing circuitry further It is configured to be placed in different bits of the additional information to indicate different information in said plurality of transmit beam sync signal block.
[Claim 53]
The electronic device according to claim 50, wherein the random access preamble sequence transmit a preamble indicating the beam information block synchronization signal to the terminal apparatus matches.
[Claim 54]
The electronic device as claimed in claim 53, wherein the plurality of preamble sequences for the same transmit beam information indicating a synchronization signal blocks, the base station transmits to the terminal device for signaling to indicate the plurality of preamble sequences correspondence between synchronization signal transmit beam block.
[Claim 55]
50-1 The electronic device according to any of claims 54, wherein the processing circuitry is further configured to radio resource control signaling comprises a random access to the configuration information transmitting terminal device, a random access the configuration information includes a base station side beam correspondence between a plurality of random access time, so that the terminal device configuration information according to the random access random access opportunity to select a particular transmit a random access preamble to synchronize the match indication beam information transmitted signal block.
[Claim 56]
The electronic device as claimed in any one of claims 50 to 54, wherein the processing circuitry is further configured to transmit the CSI-RS beam in the beam direction transmitting a synchronization signal corresponding to the block matching, as well as from the CSI-RS terminal device receives terminal device matches the feedback beam.
[Claim 57]
50-1 The electronic device according to any of claims 55, wherein said wireless communication system is a system 5G NR, a base station for transmitting signals to GNB by beamforming, the base station further comprises a plurality of antennas .
[Claim 58]
A method for a base station side for a wireless communication system, comprising: a base station side using different transmission beam to the terminal device transmitting the wireless communication system comprises a primary synchronization signal and secondary synchronization signals and the PBCH plurality of synchronization signals blocks for downlink synchronization, wherein each sync block signal can indicate the base station transmits the synchronization signal information block transmission beam used; from the terminal device receiving a random access preamble to aid the random access procedure of the terminal device wherein the random access preamble transmission beam capable of indicating a synchronization signal information block matches with the terminal device; and a base station side according to the random access preamble is determined applicable to downlink transmissions to the terminal apparatus transmit beams for beam management.
[Claim 59]
The method according to claim 58, wherein the synchronization signal block itself indicative of the base station transmits the synchronization signal information of the transmit beam used by a block sync signal sequence of the reference signal block, the method further comprises the plurality of placing the block synchronization signal different reference signal sequence information indicative of a different transmit beams.
[Claim 60]
The method according to claim 58, wherein said synchronization signal further comprises an additional block of information bits, transmitted sync signal transmission beam information of the block used by the base station indicating the additional information bits, the method further comprises the placing said plurality of different additional information bits to indicate different transmit beam information synchronization signal block.
[Claim 61]
The method according to claim 58, wherein the random access preamble sequence transmit a preamble indicating the beam information block synchronization signal to the terminal apparatus matches.
[Claim 62]
The method according to claim 61, wherein the plurality of preamble sequences for the same transmit beam information indicating a sync signal block, said method further comprising sending signaling to the terminal device for indicating a plurality of preamble sequence of transmit beams of a correspondence relationship with the synchronization signal block.
[Claim 63]
58. The method according to any one of any one of claims 62, wherein said method further comprises a radio resource control signaling comprises a random access to the information transmitting terminal device configuration, the random access configuration information includes a base station and a plurality of side beams corresponding relationship between the timing of the random access, so that the terminal device configuration information according to the random access random access opportunity to select a particular transmit a random access preamble to a block synchronizing signal indicating the matched transmit beam information.
[Claim 64]
58. The method according to any one of any one of claims 62, wherein said method further comprises transmitting CSI-RS in the beam direction of a beam transmitting a synchronization signal corresponding to the block matching, and received from the terminal device CSI-RS to the terminal apparatus matches the feedback beam.
[Claim 65]
A radio communication method, comprising: using a configuration based on different transmit beams emitted beam transmits a synchronization signal to the terminal device repeatedly, transmitting said synchronization signal can indicate the transmit beam information used for synchronization signal; and obtaining from the terminal feedback device, said feedback information comprises a transmit beam for transmission beam management.
[Claim 66]
A radio communication method, comprising: a base station configured to receive a transmission beam based on the side of the radio communication system a synchronization signal, the synchronization signal can indicate the base station transmits the synchronization signal information transmission beam used; and providing feedback to the base station, the feedback information includes a transmit beam for the management station to transmit beams.
[Claim 67]
Storing one or more computer-readable storage medium of instructions, the instructions cause the one or more of the electronic device performed when executed by one or more processors of an electronic device according to claim 40 to 49 and 58 to the method of any one of claim 66.
[Claim 68]
An apparatus for a wireless communication system, comprising means for performing the operation as claimed in 40 to 49 and 58 to 66 the method according to any one of the claims.
[Claim 69]
An electronic apparatus of the base station side radio communication system, comprising processing circuitry, the processing circuitry is configured to: receive the transmitted beam configuration from another base station, the other base station based on the transmit beam configuration transmitting a synchronization signal to the terminal device; and transmitting the transmit beam configuration to the terminal device.
[Claim 70]
The electronic device according to claim 69, wherein the other base station is a base station of the wireless communication system, the base station or the progeny of the wireless communication system of a wireless communication system.
[Claim 71]
The electronic device according to claim 70, wherein the wireless communication system is an LTE system, a wireless communication system is a descendant 5G system.