[0001]The present disclosure relates to an electronic device and a communication method, and more particularly, the present disclosure relates to a large-scale multiple input multiple output (Massive Multi-Input Multi-Output, MIMO) antenna system and a communication method of an electronic device. Background technique [0002] In recent years, large-scale MIMO antenna system can significantly improve spectral efficiency and energy efficiency, large-scale MIMO antenna system is considered to be part of the key technologies of the future 5G, causing widespread concern academia and industry. [0003] In the prior art, in order to take advantage of the diversity antenna system and the mass MIMO multiplexing gain, the base station (BS) needs to know the end of the channel state of the channel between the base station and the user equipment. In time division duplex (TDD) system, the channel state of the downlink channel between the base station and the user equipment may utilize channel reciprocity is obtained, so the current references are considered large scale TDD MIMO antenna system. However, the TDD system also faces a pilot signal (also referred to as a training sequence, the reference sequence, etc.) pollution problems, while TDD systems also difficult to support high-speed mobile communication scenario. On the other hand, most current cellular mobile communication systems are operating in a frequency division duplex (FDD) mode, so the process of evolution of the standard to 5G, the FDD mode is bound to be retained. [0004] SUMMARY [0005] The present invention is disclosed in found in the conventional large-scale MIMO antenna system, since the conventional channel estimation method at different transmit antennas orthogonal pilot signals (the training sequence may also be referred to as a reference sequence, etc.) estimating a channel, it transmits to the number of pilot signals required for the physical resource units increases the number of antennas increases. Thus, in a case where the user equipment or the base station is configured with multiple antennas, as the number of antennas increases, the overhead for channel estimation increases, which greatly limits the data throughput rate of a communication system. There is no viable option to solve these problems. [0006] Therefore, the present application proposes a new technical solution for at least one of the problems described above. [0007] One aspect of the present disclosure relates to an electronic apparatus having a first communication apparatus for a plurality of antennas, comprising: a memory for storing computer instructions; and a processing circuit configured to execute computer instructions stored for: according to the channel state of the channel between the plurality of antennas of the first communication device and the second communication device, determining channel characteristics from the first communication device to the second communication device a first channel in the angular range; according to the determined a channel characteristic of the channel in the angular range, determining a first set of pilot signals for said range of angles, each of the first pilot set of pilot signals pilot signal orthogonal to each other; and a first set of pilot signals converted a second set of guide for transmission on multiple antennas in the first communication device frequency signal. [0008] One aspect of the disclosure relates to an electronic device for the second communication apparatus, comprising: a memory for storing computer instructions; and a processing circuit configured to execute the stored computer instructions for: based on information from the plurality having a second set of guide means of the first communication antenna pilot signal to the communication channel from the first device to the second communication device a first channel estimate, wherein the second set of pilot signals by a first communication device by processing determined: a channel according to channel states between a plurality of antennas of the first communication device and the second communication device, determining channel characteristics from the first communication device to the second communication device a first channel in the angular range; in accordance with the determining channel characteristics of the channel in a first angular range, determining a first set of pilot signals for said range of angles, each of the first pilot set of pilot signals pilot signal orthogonal to each other; and a first set of guide frequency signal into a second set of pilot transmission on a plurality of the first communication device antenna pilot signals. [0009] One aspect of the disclosure relates to a communication method for a first communication apparatus having a plurality of antennas, comprising: a channel according to channel states between a plurality of antennas of the first communication device and the second communication device, determining from the means a communication channel to the second communication device a first channel characteristic angular range; based on the determined channel characteristics of a first channel in the angular range, determining a first set of pilot signals for said range of angles, each guide a first set of pilot signal pilot signal orthogonal to each other; and a second set of a first set of pilot signals into pilot for transmission on multiple antennas in the first communication device frequency signal. [0010] One aspect of the disclosure relates to a communication method of the second communication device, comprises means for: based on a second set of guide means having a first communication from a plurality of antennas for the pilot signal from the first communication device to the second communication device a first channel for channel estimation, wherein the second set of pilot signals by a first communication device determined by the following process: according to a channel state of the channel between the plurality of antennas of the first communication device and the second communication device, determining channel characteristics from the first communication device to the second communication device a first channel in the angular range; based on the determined channel characteristics of a first channel in the angular range, determining a first set of pilot signals for the angular range, each of the first pilot set of pilot signals pilot signal orthogonal to each other; and a first set of pilot signals into a second set of pilot transmission on a plurality of the first communication device antenna pilot signals. [0011] One aspect of the disclosure relates to an electronic device for a multi-antenna wireless communication system, the electronic device comprising: a memory for storing computer instructions; and a processing circuit configured to execute the stored computer instructions for: the communication terminal according to the uplink channel state of the base station, determining a channel angle between the communication terminal and the base station; selecting a portion of the plurality of pilot signals from the pilot signal for the channel angle, wherein the base station signal and a portion of said pilot signal into a plurality of antennas on the base station transmissions; having a plurality of antennas, the plurality of channels a plurality of antenna angles to support the pilot signals covered by the base station . [0012] According to some embodiments of the present disclosure, the overhead can be reduced for channel estimation. [0013] According to some embodiments of the present disclosure, while the lower overhead can further improve the data throughput of the communication system to maintain channel estimation. [0014] By reference to the drawings detailed description of the disclosed exemplary embodiments, other features and advantages of the present disclosure will become apparent. BRIEF DESCRIPTION [0015] The drawings constitute a part of the specification, the present disclosure describes embodiments and together with the description serve to explain principles of the present disclosure. [0016] Referring to the drawings, the following detailed description, will be more clearly understood from the present disclosure, wherein: [0017] 1 is a schematic configuration example of the technique has an orthogonal pilot system illustrating. [0018] FIG 2 is a schematic diagram of a prior art time domain pilot signal orthogonal pilot exemplary allocation of transmission resources of illustrating. [0019] 3 is a schematic example of a frequency-domain signal allocation of transmission resources are orthogonal pilot illustrating art. [0020] 4 is a schematic of a prior art example of a time-frequency signal transmission resources allocated two-dimensional orthogonal illustrating pilots. [0021] FIG 5 is a schematic diagram of the prior art is an example of pilot signals orthogonal pilot code allocation of transmission resources of illustrating. [0022] FIG 6 is a block diagram of a configuration of an electronic apparatus having a first communication means of the plurality of antennas embodiment according to the present disclosure is shown. [0023] FIG 7 is a block diagram showing a configuration of an electronic apparatus according to the second embodiment of the communication apparatus of the present disclosure. [0024] FIG 8 is a flowchart illustrating an example of a signaling interaction process performed between the base station and the user apparatus of the embodiment of the present disclosure. [0025] FIG 9 is a flowchart illustrating an example of a signaling interaction process between the user equipment and the base station perform an embodiment of the present disclosure. [0026] FIG 10 is a diagram illustrating an example of processing flow of the channel characteristics of the channel in the angular range between the base station and the user equipment determines an embodiment of the present disclosure. [0027] FIG 11 is a diagram showing the angle range according to the present disclosure is orthogonal to an exemplary embodiment of the configuration of the audio system of the guide. [0028] FIG 12 is a schematic view illustrating an embodiment of the angular range of the present disclosure orthogonal pilot frequency system configuration of yet another example. [0029] FIG 13A is a diagram illustrating an uplink channel state according to channel a first user device according to embodiments of the present disclosure. [0030] FIG 13B is a diagram illustrating a downlink channel according to a first practical embodiment of a user device of the present disclosure the channel characteristics of the angular range. [0031] 14A is a schematic diagram showing a channel state of the uplink channel of the second user device according to embodiments of the present disclosure. [0032] FIG 14B is a diagram showing a downlink channel in accordance with a second user equipment the actual embodiment of the present disclosure the channel characteristics of the angular range. [0033] 15A is a schematic diagram showing a channel state of the uplink user channel third embodiment of the apparatus of the present embodiment of the disclosure. [0034] 15B is a diagram illustrating a downlink channel according to a third practical embodiment of a user device of the present disclosure the channel characteristics of the angular range. [0035] FIG 16 is a schematic diagram illustrating an example of an embodiment according to the angle range of the present disclosure completely orthogonal pilot pilot signal sequence. [0036] FIG 17 is a schematic diagram showing an example of the angular range of some embodiments disclosed pilot signal orthogonal pilot sequences. [0037] FIG 18 is a diagram illustrating an example of allocation of transmission resources frequency signal according to Orthogonal full angular range of the present embodiment of the disclosure. [0038] FIG 19 is a diagram showing an example of the signal allocation of transmission resources according to an embodiment of the present disclosure is partially orthogonal angle range pilots. [0039] FIG 20 is a flowchart illustrating a communication method of the first communication apparatus having a plurality of antennas according to an embodiment of the present disclosure. [0040] FIG 21 is a flowchart illustrating a communication method of the second communication apparatus according to an embodiment of the present disclosure. [0041] FIG 22 is a block diagram illustrating another configuration example of an embodiment of an electronic apparatus of the embodiment according to the present disclosure. [0042] FIG 23 is a flowchart illustrating a communication method for an electronic apparatus according to an embodiment of the present disclosure. [0043] FIG 24 is a diagram of an exemplary simulation of the throughput rate of a communication system of the present disclosure of embodiments of a cell. [0044] FIG 25 is a throughput of a communication system of the present disclosure of embodiments of a cell of a further example of the simulation of FIG. [0045] FIG 26 is a block diagram showing an example of a schematic exemplary embodiment of a smart phone embodiment of the present disclosure configuration. [0046] FIG 27 is a diagram illustrating an example of a schematic configuration of a car navigation apparatus according to an embodiment of the present disclosure a block diagram. [0047] FIG 28 is a block diagram of a first exemplary configuration according to an exemplary embodiment of the present eNB disclosed. [0048] FIG 29 is a block diagram showing a second example of the configuration of the eNB according to an exemplary embodiment of the present disclosure. Detailed ways [0049] Now with reference to various exemplary embodiments of the present disclosure will be described in detail with the accompanying drawings. It should be noted: Unless specifically stated otherwise, the relative arrangement of the components and steps otherwise set forth in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present disclosure. [0050] Meanwhile, it should be understood that, for convenience of description, the size of various parts shown are not drawn according to the ratio between the actual drawing. [0051] Following description of exemplary embodiments of at least one embodiment is merely illustrative and in no way as a disclosure of the present application, or uses of any limitation. [0052] In the relevant art known to those skilled in the art, methods and devices may not be discussed in detail, but in appropriate cases, the techniques, methods and apparatus should be considered as part of the specification. [0053] All of the examples illustrated and discussed herein any specific values ​​should be construed as merely illustrative, and not by way of limitation. Thus, other exemplary embodiments of the exemplary embodiments may have different values. [0054] It should be noted: like reference numerals and letters refer to similar items in the following figures, and thus once an item is defined in one figure, then the following figures need not be further discussed. [0055] 1. Configuration example of the prior art system of orthogonal pilot [0056] 1 is a schematic configuration example of the technique has an orthogonal pilot system illustrating. [0057] As shown, the prior art radio communication system, a base station equipped with a 1 M antennas (M is an integer and M ≧ 1), each antenna provided with a corresponding antenna ports, each port is arranged with a corresponding antenna RF link. The base station is also equipped with a pilot allocation module, the pilot allocation module assigned to each antenna port orthogonal pilot signals (also referred to as a training sequence, the reference sequence, etc.). The base guiding orthogonal pilot signal is transmitted to one or more user devices over the wireless physical channel via a corresponding antenna port and the antenna. [0058] In the pilot allocation module prior art, a pilot signal may include quadrature time domain orthogonal, orthogonal frequency domain, in various ways and two-dimensional orthogonal code orthogonal frequency isochronous. For example, in the prior art orthogonal frequency division multiplexing (OFDM) system, the configuration above several orthogonal pilot signals may be exemplarily outlined below. [0059] FIG 2 is a schematic diagram of a prior art time domain pilot signal orthogonal pilot exemplary allocation of transmission resources of illustrating. As shown in FIG 2 is configured with the base station is assumed that for example, eight antenna ports and a corresponding eight antennas. 2 in FIG horizontal axis represents time and the vertical axis represents the frequency, each square represents a certain time, the physical resource units at a certain frequency. As shown in FIG. 2, in the case of time domain orthogonal pilot signals, different antenna ports transmits a pilot signal at different times, these different antenna ports to transmit the pilot signals using the same frequency. For example, antenna ports 0 to 7 respectively in the F4 same frequency, different physical resource units at a time T0 through T7 R0 to R7 transmits the pilot signal. [0060] 3 is a schematic example of a frequency-domain signal allocation of transmission resources are orthogonal pilot illustrating art. As shown in FIG. 3, also assumes that the base station is configured with, for example, eight antenna ports and a corresponding eight antennas. Similarly, in FIG. 3 the horizontal axis represents time and the vertical axis represents the frequency, each square represents a certain time, the physical resource units at a certain frequency. As shown, in the case where a frequency domain orthogonal pilot signals of different frequencies using different antenna ports (i.e., on the sub-carriers of different frequencies) transmits a pilot signal 3, but these are in the different antenna ports the same time transmitting the pilot signal. For example, antenna ports 0 to 7 can be used separately in different frequencies F0 to F7, physical resource units at the same time T0 R0 to R7 transmits the pilot signal. [0061] 4 is a schematic of a prior art example of a time-frequency signal transmission resources allocated two-dimensional orthogonal illustrating pilots. As shown in FIG. 4, assume the base station is configured with the same example, eight antenna ports and a corresponding eight antennas. Similarly, in FIG. 4 the horizontal axis represents time and the vertical axis represents the frequency, each square represents a certain time, the physical resource units at a certain frequency. As shown in FIG. 4, in the case of time-frequency two-dimensional orthogonal pilot signals, different time-frequency antenna port using a two-dimensional physical resource unit transmits the pilot signal, i.e., different antenna ports the pilot signal transmitted physical resource unit is at least different in time or frequency. For example, antenna port 0 may be used in a frequency F7, the physical resource units R0 at time T0 to transmit a pilot signal, an antenna port may be used at a frequency F6, physical resource unit R1 at time T4 transmits a pilot signal .. ...., and an antenna port 7 may be used at a frequency F0, R7 physical resource unit time T4 to transmit the pilot signal. [0062] FIG 5 is a schematic diagram of the prior art is an example of pilot signals orthogonal pilot code allocation of transmission resources of illustrating. As shown in FIG. 5, for example it is also assumed that the base station is configured with eight antenna ports and a corresponding eight antennas. Similarly, in FIG. 5 horizontal axis represents time, the vertical axis represents the frequency, each square represents a certain time, the physical resource units at a certain frequency. , In the case where the pilot signal orthogonal code, a different antenna port 5 in pilot signals orthogonal to each other. For example, antenna ports 0 to 7 respectively transmitted pilot mutually orthogonal pilot signals S0 to S7. [0063] However, as described above in the time domain Orthogonal pilot signal, the frequency-domain orthogonal pilot signals, time-frequency two-dimensional orthogonal pilot orthogonal code and the pilot signal orthogonal pilot signals and the like in various forms in the pilot signal , the number of physical resource units used to send the pilot frequency signals are needed as the number of antennas or antenna ports. For example, in the case where the base station is configured with eight antennas, both time domain orthogonal pilot signals, pilot signals orthogonal in the frequency domain, time-frequency two-dimensional codes or orthogonal pilot signals orthogonal pilot signals, are required 8 physical resource units to transmit a pilot signal. Therefore, as the number of antennas, the number of frequencies for a desired physical resource units transmitted pilot signal is increased. Thus, in a case where the user equipment or the base station is configured with multiple antennas, as the number of antennas increases, the overhead for channel estimation increases, which greatly limits the data throughput rate of a communication system. [0064] The illustrative embodiment of the electronic apparatus of the embodiment of the present disclosure configuration [0065] FIG 6 is a block diagram illustrating the configuration of an electronic apparatus 600 according to a first communication apparatus having a plurality of antennas of the embodiments of the present disclosure. [0066] The first communication device for an electronic device having a plurality of antennas 600 may include a processing circuit 620 and the memory 610 of the embodiment of the present disclosure. [0067] The electronic device for a first communication apparatus having a plurality of antennas 600 processing circuit 620 is configured to provide a variety of functions of the electronic apparatus of the first communication device 600 having a plurality of antennas. For example, in the embodiment disclosed, the first communication device for an electronic apparatus having a plurality of antennas 600, processing circuit 620 may include a channel characteristic determination unit 621, a pilot signal determining unit 622 and the pilot signal converting unit 623 . A channel characteristic determination unit 621 may be configured according to the channel state of the channel between the plurality of antennas of the first communication device and the second communication device, determining the angular range from a first communication device to the first channel of the second communication device channel characteristics. The pilot signal determination unit 622 may be configured to channel characteristics according to a first angular range of the determined channel, determining a first set of pilot signals for said range of angles, a first set of pilot signals of the respective guide pilot signal orthogonal to each other. The pilot signal conversion unit 623 may be configured to guide a first set of a second set of pilot signals into a plurality of transmission antennas on the first communication device frequency signal. [0068] Further, the electronic device for a first communication apparatus having a plurality of antennas 600 may further comprise a plurality of antennas, for example. This plurality of antennas may be configured to transmit a second group of pilot signals. [0069] According to one embodiment of the present disclosure, the first communication device may be a base station, and the second communication device may be a user equipment. Further, according to another embodiment of the present disclosure, the first communication device may be a user equipment and the second communication device may be a base station. Note that, the communication system of the present disclosure is applied, for example, an LTE system, the base station may transmit, for example, the channel state information reference signal in the LTE system (Channel State Information Reference Signal, CSI-RS) and the like as a pilot signal, the reference sequence, or training sequence and so on. However, the disclosed technical solution is not limited to the LTE system, different communication systems, for example in the future 5G communication system, a base station may transmit the pilot signals of the other suitable for channel estimation, the reference or training sequence, etc. . [0070] The memory 610 may store information generated by the processing circuit 620, and program data 600 and the operation of the electronic apparatus of the first communication device having multiple antennas. The memory 610 may be volatile memory and / or nonvolatile memory. For example, memory 610 may include, but are not limited to, a random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), a read only memory (ROM) and a flash memory. [0071] FIG 7 is a block diagram showing a configuration of an electronic device of the second communication apparatus 700 according to an embodiment of the present disclosure. [0072] According to an embodiment of the present disclosure of the electronic device 700 may include a second communication device, for example, processing circuitry 720 and memory 710. [0073] The electronic device for the second communication means 700 processing circuit 720 is configured to provide an electronic apparatus for various functions of the second communication device 700. For example, the electronic device for the second communication means 700 processing circuit 720 may include a channel estimation unit 721. Channel estimation unit 721 may be configured to perform a first communication channel from the device to the second communication device a first channel estimate based on the second set of guide means from the first communication antenna having a plurality of pilot signals, wherein the second set of pilot signals are determined by the first communication device by the following process: according to the channel state of the channel between the plurality of antennas of the first communication device and the second communication device, determining means from the first communication device to the second communication a first channel in the channel characteristic angular range; based on the determined channel characteristics of a first channel in the angular range, determining a first set of pilot signals for said range of angles, each of the first group of pilot signals pilot signals orthogonal to each other; and a second set of a first set of pilot signals into pilot for transmission on multiple antennas in the first communication device frequency signal. Further, the processing circuit 720 may further include a generating unit (not shown), the generation unit is configured to generate based on the feedback reports the estimation result of the channel of the second set of pilot signals to provide a channel estimation result to the first communication device . [0074] According to one embodiment of the present disclosure, the first communication device may be a base station, and the second communication device may be a user equipment. Further, according to another embodiment of the present disclosure, the first communication device may be a user equipment and the second communication device may be a base station. Note that, the communication system of the present disclosure is applied, for example, an LTE system, the base station may transmit, for example, the channel state information reference signal in the LTE system (Channel State Information Reference Signal, CSI-RS) and the like as a pilot signal, the reference sequence, or training sequence and so on. However, the technical solution of the present disclosure is not limited to the LTE system, different communication systems, other suitable base station may send pilot signals, the reference or training sequence and the like. [0075] The memory 710 may store information processed by the processing circuit 720 generated by the circuit, and program data 700 and the operation of the electronic device of the second communication device. The memory 710 may be volatile memory and / or nonvolatile memory. For example, memory 710 may include, but are not limited to, a random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), a read only memory (ROM) and a flash memory. [0076] The processing flow of the embodiment of the disclosed [0077] FIG 8 is a flowchart illustrating an example of a signaling interaction process performed between the base station and the user apparatus of the embodiment of the present disclosure. [0078] As shown in FIG. 8, in step 8003, the first communications device (e.g. a base station) a plurality of antennas and a second communication device (e.g., user equipment) channel state between a channel, from the first communication device is determined in accordance with (e.g. the base station) to a second communication device (e.g., user equipment) a first channel (e.g., downlink channel) channel characteristics angular range. [0079] According to one embodiment of the present disclosure, it may be an antenna according to a first communication apparatus (e.g. base station) with a second communication device (e.g., user equipment) a first channel (e.g., downlink channel) and a second channel between (e.g., uplink channel) symmetry arrival angle, determining a first channel (e.g., downlink channel) channel characteristics in a second angle range from the channel (e.g., uplink channel) channel state. [0080] Applicant notes that, while in an FDD system, an uplink channel and a downlink channel reciprocity is no longer, but according to the WINNER II (see IST-4-027756 WINNER II D1.1.2 V1.2 WINNER II Channel Models, Part 1, Channel models, Section 5.4.3) to provide the channel model, small-scale uplink channel and downlink channel fading parameters (such as antenna angle of arrival, etc.) are the same. Specifically, the downlink channels and uplink channels may be respectively expressed as follows: [0081] [Number 0001] [0082] [Number 0002] [0083] Wherein, M is the base station with the number of antennas, M being a natural number greater than or equal to 1, N Cl is the number of scatterers, N ray is the number of sub-path contained in each scatterer, [alpha] I, L represents each sub-paths channel coefficients. a base station, an antenna response vector, superscript UL and DL each represent the uplink channel and downlink channel, [Phi], and θ are the horizontal and vertical directions of the antenna's angle of arrival. In addition, and represent a random phase for each sub-path upstream channel and downlink channel, they are independent and uniformly distributed in [0,2π]. [0084] Further, the type of antenna response vector forms with the base station is equipped with the antenna concerned. For example, with the type of the base station antenna at a uniform linear antenna (Uniform Linear Array, ULA) case, the antenna response vector may be expressed as follows: [0085] [Number 0003] [0086] Note that, in the above expression, for the uplink channel and downlink channel use wavelength [lambda], respectively UL and [lambda] the DL . [0087] Also for example, the type of the base station with an antenna in a uniform planar antenna (Uniform Planar Array, UPA) case, the number is assumed in the horizontal direction and the antenna in the vertical direction are W and H, and W × H = M, M the base station is equipped with an antenna number, W, H and M are natural numbers greater than or equal to 1, the antenna response vector may have the form of Keluoneike product, it can be expressed as follows: [0088] [Number 0004] [0089] Wherein, A V ([theta]) and A H ([Phi], [theta]) are the vertical and horizontal directions of the antenna response vector, A V ([theta]) and A H ([Phi], [theta]), respectively, can be expressed as: [0090] [0091] [0092] Similarly, in the above expression, for the uplink channel and downlink channel use wavelength [lambda], respectively UL and [lambda] the DL . [0093] Thus, by using the uplink channel and downlink channel, antenna angle of arrival reciprocity, downlink channel may be determined channel characteristics angular range from the channel state of the uplink channel. [0094] Specifically, the first communication apparatus (e.g. base station) a plurality of antennas and a second communication device (e.g., user equipment) channel state corresponding to the channel between the first communication device from a second communication device (e.g., user equipment) to ( such as a channel state of a channel of the plurality of antenna base station). In addition, the channel characteristic processing circuit 620 for an electronic device having a first communication apparatus of a plurality of antennas 600 in the determination unit 621 may be configured to: according to a first communication device from a second communication device (e.g., user equipment) to ( for example, the channel state of the channel of the plurality of antennas of the base station), to determine the channel characteristics from the second communication device (e.g., user equipment) to the first communication apparatus (e.g. base station) a second channel (e.g., uplink channel) in angular range, and the channel characteristic is determined in a first angular range channel (e.g., downlink channel) channel characteristics in the angular range based on a second channel (e.g., uplink channel). [0095] Step 88001 and step 8002 Referring back to FIG. FIG Step 88001 and Step 8002 is an optional step. [0096] In step 8001, an uplink pilot signal may be transmitted from the user equipment to the base station. [0097] In step 8002, an uplink may be estimated from the uplink pilot channel from the user equipment to a base station transmits a pilot signal to determine the channel state of the uplink channel. [0098] Upon obtaining a first communication means (e.g. a base station) a plurality of antennas and a second communication device (e.g., user equipment) channel state between a channel, it can be a plurality of first antennas and the second communication apparatus (e.g. base station) second communication means (e.g., user equipment) channel state of the channel between the transform, to obtain the corresponding channel in the channel characteristics angular range. For example, once to obtain the channel state from the user equipment uplink channel of the base station, it may transform the channel state from the user equipment to the base station uplink channel, to obtain from the user equipment to the base station uplink channel channel angular range characteristic. [0099] According to the present embodiment of the present disclosure, depending on the respective channels of the channel characteristic in the angular range, selected from a range of angles in the channel characteristics protrudes N angles, where N is greater than or equal to a natural number of 1, a first set of pilot signals by the number of greater than or equal to N, and the first set of pilot signals are respectively used for the N angles. [0100] For example, according to the base station from the user equipment uplink channel in the channel characteristics angular range, select the channel characteristics from the perspective of the N projection angle range, where N is a natural number greater than or equal to 1. According to the present embodiment of the present disclosure, the number of the first set of pilot signals may be greater than or equal to N, and the first set of pilot signals are respectively used for the N angles. For example, in a communication system composed of only one user equipment, the number of the first pilot signal may be set equal to N. Another example is the case, having two or more user devices in a communication system, a first set of the number of pilot signal may be greater than N. [0101] In particular, according to the present embodiment of the present disclosure, based on the magnitude of the channel characteristic corresponding to the channel in the angle range satisfies a predetermined condition; and selecting the amplitude of the channel characteristics meet the N angle predetermined condition as channel characteristics projecting the N angle. [0102] For example, based on the magnitude of the channel characteristics from the user equipment to the base station uplink channel angle range satisfies a predetermined condition, and selecting the amplitude of the channel characteristics meet the N angle predetermined condition as channel characteristics protrudes N angles. [0103] In particular, according to the present embodiment of the present disclosure, may be selected amplitude of the channel characteristics in the respective channel angular range larger as the angle of the first N channel characteristics of the N projection angles. [0104] For example, you can select the amplitude of the channel characteristics from the user equipment to the base station in the uplink channel angular range larger as the angle of the first N channel characteristics of the N projection angles. [0105] The above-described embodiment of the present disclosure can have a beneficial technical effects. For example, since the uplink channel estimation is a step upstream data transmission required in a mobile communication system, and therefore from the channel state of the uplink channel to determine a downlink channel channel characteristics in the angular range of no additional resource consumption. [0106] According to still another embodiment of the present disclosure embodiment, the channel state of the channel between the plurality of antennas of a first communication apparatus (e.g. base station) with a second communication device (e.g., user equipment) corresponding to the first communication device (e.g., base station) a plurality of antennas to the second channel state communication device (e.g., user equipment) channel. In addition, the channel characteristic processing circuit 620 for an electronic device having a first communication apparatus of a plurality of antennas 600 in the determining unit 621 may be further configured to: according to a first communication from a device (e.g. a base station) to a plurality of antennas a channel state of the channel second communication device (e.g., user equipment) determining a first channel (e.g., downlink channel) channel characteristics angular range. [0107] Specifically, conventional periodic orthogonal pilot signals used to estimate from the first communication apparatus (e.g. base station) to a second communication device (e.g., user equipment) a first channel (e.g., downlink channel) channel, and according to fed back from the second communication device (e.g., user equipment) to the first communication apparatus (e.g. base station) a first channel (e.g., downlink channel) determining channel state from the first communication apparatus (e.g. base station) to a second communication device (e.g. user equipment) a first channel (e.g., downlink channel) channel characteristics angular range. Referring to FIG 10 described in detail an example of determining channel characteristics of a process flow channel between the base station and the user equipment in the angular range. [0108] FIG 10 is a diagram illustrating an example of processing flow of the channel characteristics of the channel in the angular range between the base station and the user equipment determines an embodiment of the present disclosure. [0109] As shown in FIG. 10, in step 101, using a conventional orthogonal pilot design method to design the conventional orthogonal pilot signals. Time domain Orthogonal e.g., as shown in FIG. 2 may be used a pilot signal, a frequency domain orthogonal pilots pilot signal shown in FIG. 3, FIG. 4 when the two-dimensional orthogonal pilot pilot signal shown in FIG. 5 or orthogonal pilot code signal. [0110] In step 102, the base station transmits to the user equipment by a conventional orthogonal pilot signals, and receiving channel state feedback from user equipment to determine a downlink channel. That is, with the conventional orthogonal pilot signals to downlink channel estimation to obtain the downlink channel state feedback channel. [0111] At step 103, it may be determined from the base station to the user equipment downlink channel channel characteristics angular range according to the channel state feedback from user equipment to a base station downlink channel. [0112] It should be noted that the above embodiments exemplarily illustrate two may determine a first channel from the first communication device (e.g., base station) to a second communication device (e.g., user equipment) (e.g., downlink channel) in angular range channel characteristic manner. However, the present disclosure is not limited to the above-described two methods may be employed to determine other ways from a first communication apparatus (e.g. base station) to a second communication device (e.g., user equipment) a first channel (e.g., downlink channel) in angular range channel characteristics. [0113] Upon obtaining a first communication means (e.g. a base station) a plurality of antennas and a second communication device (e.g., user equipment) channel state between a channel, it can be a plurality of first antennas and the second communication apparatus (e.g. base station) second communication means (e.g., user equipment) channel state of the channel between the transform, to obtain the corresponding channel in the channel characteristics angular range. For example, once to obtain the channel state from the base station to the downlink channel of the user equipment, it may transform the channel state from the base station to the downlink channel of the user equipment, to obtain from the base station to the user equipment downlink channel channel angular range characteristic. [0114] According to the present embodiment of the present disclosure, depending on the respective channels of the channel characteristic in the angular range, selected from a range of angles in the channel characteristics protrudes N angles, where N is greater than or equal to a natural number of 1, a first set of pilot signals by the number of greater than or equal to N, and the first set of pilot signals are respectively used for the N angles. [0115] For example, depending from the base station to the user equipment downlink channel channel characteristics angular range, selected from a range of angles in the channel characteristics protrudes N angles, where N is greater than or equal to a natural number of 1, a first set of pilot signals quantities greater than or equal to N, and the first set of pilot signals are respectively used for the N angles. [0116] In particular, according to the present embodiment of the present disclosure, based on the magnitude of the channel characteristic corresponding to the channel in the angle range satisfies a predetermined condition; and selecting the amplitude of the channel characteristics meet the N angle predetermined condition as channel characteristics projecting the N angle. [0117] For example, based on the magnitude of the channel characteristics from the base station to the user equipment downlink channel in the angle range satisfies a predetermined condition, and selecting the amplitude of the channel characteristics meet the N angle predetermined condition as channel characteristics protrudes N angles. [0118] In particular, according to the present embodiment of the present disclosure, may be selected amplitude of the channel characteristics in the respective channel angular range larger as the angle of the first N channel characteristics of the N projection angles. [0119] For example, the amplitude may be selected from the base station to the channel characteristics of the downlink channel of the user equipment in a large angular range, as the angle of the first N channel characteristics of the N projection angles. [0120] After a predetermined period, and repeat steps 101 to perform the same operations as step 104 of step 103 to step 106, the specific content is omitted. Note that for transmitting orthogonal pilot signals conventional cycle depends on the speed of change of the channel. For example, it may be used to transmit conventional orthogonal pilot signal is set to a multiple of the period of the channel coherence time. [0121] In the embodiment disclosed in the above-described embodiment, the value of N (e.g., user equipment) angular spread conditions of the channel between the first communication device a first communication apparatus (e.g. base station) with a plurality of antennas according to the second communication device ( for example, the number of antennas of the base station) and / or the number of available pilot signals determined. [0122] More specifically, N values ​​of the first communication apparatus (e.g. base station) a plurality of antennas and a second communication device (e.g., user equipment) a channel condition between the angular spread, the antenna of the first communication apparatus (e.g. base station) of the number and / or the pilot signal is proportional to the number or available. [0123] For example, the value of N may or channels between the plurality of antennas and a second communication device (e.g., user equipment) where σ is a first communication apparatus (e.g. base station) angular spread conditions standard deviation, M being a first communication the number of antennas of the apparatus (e.g. base station), [] is a rounding operation. [0124] In the embodiment disclosed in the above-described embodiment, the first communication apparatus (e.g. base station) a plurality of antennas and a second communication device (e.g., user equipment) into the channel state between the channel can be performed based on Fourier transform , thereby completing the transformation from a radio channel to the physical channel angular range. That is, transforming the channel state of the uplink channel or downlink channel between the base station and the user equipment may be performed based on Fourier transform. [0125] More specifically, the conversion can be Fast Fourier Transform FFT, fast Fourier is determined that the first communication device (e.g., base station) according to the type of the plurality of antennas transformation FFT transformation matrix used. [0126] According to the present embodiment of the present disclosure, if the first communication apparatus (e.g. base station) a plurality of antennas are uniform linear antenna array, the fast Fourier transform FFT transform matrix used is an M × M matrix is ​​a discrete fast Fourier transform , where M is the number of the first communication apparatus (e.g. base station) antenna, and M is a natural number greater than or equal to 1. [0127] For example, the above M × M discrete fast Fourier transform F p th row of the matrix elements column q may be expressed as: [0128] [Number 0005] [0129] According to an embodiment of the present disclosure, if the first communication apparatus (e.g. base station) a plurality of planar antenna array antenna is a uniform, the fast Fourier transform FFT transform matrix is used where, F. W is a W × W discrete fast Fourier transform matrix F. H is H × H discrete fast Fourier transform matrix, as Keluoneike product, W and H denote the antenna of the first communication apparatus (e.g. base station) in the horizontal direction and the vertical direction number, and satisfies W × H = M, where M is the number of the first communication apparatus (e.g. base station) antennas, and M, W and H are a natural number equal to or greater than 1. [0130] For example, W × W discrete fast Fourier transform matrix F. W is p-th row, q-th column element may be: [0131] [Number 0006] [0132] Similarly, for example, H × H discrete fast Fourier transform matrix F. H p-th row, q-th column element may be: [0133] [Number 0007] [0134] Further, in step 802 the embodiment described above with reference to step 801 of FIG. 8 embodiment, i.e. the channel between the first communication device (e.g. a base station) a plurality of antennas and a second communication device (e.g., user equipment) a channel state corresponds to the second communication device (e.g., user equipment) to the case where the channel status channel of the plurality of antennas of a first communication apparatus (base station), may be based on a first channel (e.g., downlink channel) and a second channel (e.g. offset to the second channel (e.g., uplink channel) projecting channel characteristics in the angular range of the N angle between the uplink channel) transmission frequency index correction determining a first channel (e.g., downlink channel) angular range in index projecting channel characteristics of the N angles. [0135] Further, according to the present embodiment of the present disclosure, if the offset between the first channel (e.g., downlink channel) and a second channel (e.g., uplink channel) does not satisfy a predetermined transmission frequency correction condition, the second channel may be directly ( e.g. uplink channel index) index of angle range in the channel characteristics of the N projection angles determined as a first channel (e.g., downlink channel) channel characteristics in the angular range of the N projection angles. [0136] A plurality of types of antennas disclosed embodiment according to the present embodiment, the predetermined condition may also be corrected with the first communication apparatus (e.g. base station) concerned. [0137] For example, according to the present embodiment of the present disclosure, if the first communication apparatus (e.g. base station) a plurality of uniform linear antenna array antennas, it is determined that the first channel (e.g., downlink channel) and a second channel (e.g., uplink channel up) transmission a frequency offset between the correction satisfies a predetermined condition, for example, as follows: [0138] Δf×M﹥f 1 [0139] Where, Δf is the first channel (e.g., downlink channel) transmission frequency F . 1 and a second channel (e.g., uplink channel) transmission frequency F 2 absolute value of the difference between the, M being a first communication apparatus (e.g. base station) antenna the number, M being a natural number greater than or equal to 1. [0140] As another example, in accordance with embodiments of the present disclosure, the plurality of antennas if the first communication apparatus (e.g. base station) is a uniform planar array antenna, it is determined that the first channel (e.g., downlink channel) and a second channel (e.g., uplink channel up) of a frequency offset between the transmission correction satisfies a predetermined condition, for example, as follows: [0141] Δf×max(W,H)﹥f 1 [0142] Where, Δf is the first channel (e.g., downlink channel) transmission frequency F . 1 and a second channel (e.g., uplink channel) transmission frequency F 2 absolute value, W and H the difference of respectively a first communication apparatus (e.g. base station) the number in the horizontal direction and the vertical direction of the antenna and satisfying W × H = M, where M is the first communication apparatus (e.g. base station) the number of antennas, M, W and H are both greater than or equal to 1 natural numbers, max (W, H) is the maximum value of W and H. [0143] The correction, the above-described second channel (e.g., uplink channel) projecting channel characteristics in the angular range of the N angular indexing the present embodiment of the present disclosure performed may be a plurality of antennas according to a first communication apparatus (e.g. base station) the type of conduct. [0144] For example, according to the present embodiment of the present disclosure, if the first communication apparatus (e.g. base station) a plurality of uniform linear antenna array antennas, for example, may be in accordance with a second channel (e.g., uplink channel) channel in the following formula angular range characteristics of the N projection angles corrected index: [0145] [Number 0008] [0146] Wherein the first channel (e.g., downlink channel) index channel characteristics angular range of projection of the N angle in the i-th angle, the second channel (e.g., uplink channel) channel characteristics in the angular range projecting angles in index N i-th angle, i is a natural number greater than or equal to 1, 1≤i≤N, [lambda] 1 and [lambda] 2 respectively a first channel (e.g., downlink channel) and a second channel (e.g. a downlink channel ) of the transmission wavelength, M being a first communications apparatus (e.g. the number of antennas of the base station), [.] denotes rounding operation. [0147] Also for example, according to the present embodiment of the present disclosure, the plurality of antennas if the first communication apparatus (e.g. base station) is a uniform planar array antenna, for example according to the following equation for the second channel (e.g., uplink channel) in angular range channel characteristics of the N projection angles corrected index: [0148] [Number 0009] [0149] [Number 0010] [0150] Wherein, and are indexed with the first channel (e.g., downlink channel) projecting channel characteristics in the angular range of the N angles i-th angle corresponding to the abscissa and ordinate, and respectively with the second channel ( e.g. uplink channel) index channel characteristics angular range of projection of the N angles i-th angle corresponding to the abscissa and ordinate, [] represents rounding operation, mod (a, b) indicates finding a inter in the calculation of the number of I b, W and H denote a first communication apparatus (e.g. base station) antenna in the horizontal direction and the vertical direction number, and satisfies W × H = M, where, i is greater than or equal to 1 a natural number, 1≤i≤N, [lambda] . 1 and [lambda] 2 respectively a first channel (e.g., downlink channel) and a second channel (e.g., uplink channel) of the transmission wavelength, M being the number of antennas of the first communication device. [0151] Further, the system less precision in the scene, may not follow a predetermined correction conditions as above to determine whether the index is corrected, but may be directly upstream channel in the channel characteristics angular range of projection angle range of port index index port projection angle range as the channel downlink channel characteristics angular range. [0152] Hereinafter, in conjunction with the accompanying drawings 13A, 13B to 15A, 15B to determine an example of a downlink channel in the channel characteristic angular range from the channel state of the uplink channel is exemplarily described. Suppose the antenna base station with the number M is eight, the number of K user equipment is three, transmission frequency downlink channel is F . 1 , the transmission frequency of the uplink channel is F 2 , and a downlink channel transmission frequency F . 1 and up F channels of the transmission frequency 2 satisfies F 2 = F * 0.9 . 1 . Further, the type of configuration is also assumed that the base station antenna is a uniform linear antenna array. [0153] FIG 13A is a diagram illustrating an uplink channel state according to channel a first user device according to embodiments of the present disclosure. As shown in FIG. 13A, the abscissa is the antenna port index identifier, the ordinate is the amplitude of the channel characteristics. As shown in FIG. 13A, an uplink channel for the first user equipment, channel state vector elements U on antenna ports 0 10 = (- 0.445292748915722-0.0895391682772950i), which channel characteristics amplitude 0.454205784741575; antenna channel at port 1 elements of the state vector U . 11 = (0.429935240361251-0.301353644108254i), which channel characteristics amplitude 0.525031741632647; channel state vector elements U on antenna ports 2 12 is = (- + .0772191708737074 0.493579638426503i), which channel characteristics amplitude 0.499583486336028; antenna port channel state vector elements U on. 3 13 is = (- 0.245440920746513-0.300407910708885i), which channel characteristics amplitude 0.387925454686043; antenna port on a channel state vector elements of U. 4 14 = (0.227983908018620-0.0196887267948656i), which channel characteristics web is 0.228832489560040; channel state vector elements of an antenna port 5 U 15 = (+ .0125163370492662 0.103088869741354i), which channel characteristics amplitude 0.103845913533854; antenna port channel state vector elements U on. 6 16 = (- + .125417988465446 0.0645631308891503i) which channel characteristics web It is 0.141060517867078; antenna port and a channel state vector elements of the U-on. 7 . 17 = (0.00129973639612804-0.186871389251782i), which channel characteristics 0.186875909190004 amplitude. Thus, the channel state of the uplink channel of the first user device may be represented as a vector of the U- . 1 : [0154] [Number 0011] [0155] Since the type described above, the configuration of the base station antenna is assumed that a uniform linear antenna array, in accordance with the following formula to determine the discrete Fast Fourier Transform (FFT) for each element of 8 × 8 used Fast Fourier Transform matrix F [F.] P, Q : [0156] [Number 0012] [0157] Wherein, p and q are greater than 1 and less than or equal to a natural number equal to 8. [0158] The 8 × 8 discrete fast Fourier transform of an uplink channel matrix F is multiplied by the first user device channel state vector of the U- . 1 , it is possible to obtain an uplink channel of the first user equipment in the angular range of channel characteristic vector A . 1 . That is, the first user equipment uplink channel a channel characteristic vector angle range A . 1 can be expressed as follows: [0159] [Number 0013] [0160] Wherein, A 10 = (- 0.0783600203933173-0.0836610560030985i), which amplitude .114627505807265; A . 11 = (- 0.0498138727191462-0.157132775443158i), which amplitude .164839713157204; A 12 is = (0.0969948426938652-0.478698360054164i), the amplitude of 0.488426165789420; A 13 is = (- + 0.685254134667091 0.0224019315173863i), which amplitude .685620212372749; A 14 = (- + .218586644105906 0.401091807756179i), which amplitude .456787433310726; A 15 = (- + .122904135293104 0.0736593438377662i), amplitude It is 0.143286864041181; A 16 = (- + 0.107369288214900 0.00679603770056940i), which amplitude 0.107584153945652; and A . 17 = (- 0.0941848367864231-0.0377119415941945i), the amplitude of 0.101454295223461. [0161] Thus, the amplitude of the channel characteristics of the first user equipment uplink channel in a large angular range of the first three (0.488426165789420,0.685620212372749 and 0.456787433310726) index corresponding to the angular range are ports (3 and 4 ). [0162] Further, since the types of antennas of the base station configured as described above assuming a uniform linear antenna array, can be corrected in accordance with the following predetermined condition to determine whether the first user equipment uplink channel in the channel characteristics projecting angular range 3 ports index angle range (2, 3 and 4) is corrected: [0163] Δf×M﹥f 1 [0164] Since as described above, [Delta] f × M = (F . 1 -f 2 ) = M × (F . 1 -0.9f . 1 ) × 0.8 F =. 8 . 1