WO2018126803A1 - 波束信息、配置信息的反馈方法及装置 - Google Patents

波束信息、配置信息的反馈方法及装置 Download PDF

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Publication number
WO2018126803A1
WO2018126803A1 PCT/CN2017/111771 CN2017111771W WO2018126803A1 WO 2018126803 A1 WO2018126803 A1 WO 2018126803A1 CN 2017111771 W CN2017111771 W CN 2017111771W WO 2018126803 A1 WO2018126803 A1 WO 2018126803A1
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WIPO (PCT)
Prior art keywords
information
reference signal
packet
sequence number
channel state
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PCT/CN2017/111771
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English (en)
French (fr)
Inventor
高波
李儒岳
鲁照华
袁弋非
王欣晖
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201710184863.2A external-priority patent/CN108288991B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP17889871.4A priority Critical patent/EP3567744A4/en
Publication of WO2018126803A1 publication Critical patent/WO2018126803A1/zh
Priority to US16/505,243 priority patent/US10917159B2/en
Priority to US17/170,387 priority patent/US11522597B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a beam information, a method and a device for feeding back configuration information.
  • the ultra-wide bandwidth high frequency band namely millimeter wave communication
  • millimeter wave communication has become an important direction for the development of mobile communication in the future, attracting the attention of academic and industrial circles around the world.
  • the advantages of millimeter waves have become increasingly attractive when the increasingly congested spectrum resources and physical networks are heavily accessed.
  • Many standard organizations, such as IEEE and 3GPP have begun to carry out corresponding standardization work.
  • high-band communication will become 5G new radio access technology (New Radio Access Technology) by virtue of its significant advantages of large bandwidth.
  • New Radio Access Technology An important innovation point for New RAT.
  • high-band communication also has the problem of link attenuation, such as large loss of propagation path, large absorption of air (especially oxygen), and heavy rain attenuation.
  • link attenuation such as large loss of propagation path, large absorption of air (especially oxygen), and heavy rain attenuation.
  • the high-band communication system can utilize high-frequency wavelengths and easy antenna integration to obtain high antenna gain and signal transmission loss through multi-antenna array and beamforming schemes, thereby ensuring link margin and Improve communication robustness.
  • the high frequency band transmitting end transmits the training pilot, and the receiving end receives the channel and performs channel estimation. Then, the high-band receiving end needs to feed back the channel state information to the training transmitting end, so that the transmitting end can find the weight pair of the multiple transmitting and receiving antennas that can be used for the multi-channel data transmission from the optional transceiver-end antenna weighting pair. Improve overall spectral efficiency.
  • the beam correlation information feeds back the beam sequence number and its channel quality under multiple optimal channel qualities to generate corresponding beam pairs for data transmission.
  • multiple beam pairs provided by existing feedback schemes may come from the same physical path and have very strong correlation characteristics. For example, when an optimal beam pair is selected to transmit data and is occluded, the suboptimal beam pair of the existing method is occluded with a high probability because of a high correlation with the optimal beam, that is, the diversity cannot be effectively obtained.
  • the embodiments of the present disclosure provide a method and a device for feeding back beam information and configuration information, so as to at least solve the problem in the related art that the receiving end cannot perform feedback on the correlation characteristics between the beams, so that the transmitting end cannot perform accurate according to the relevant characteristics of the receiving end. And flexible data transmission reduces the problem of system diversity and multiplexing gain.
  • a method for feeding back beam information includes: receiving, by a receiving end, a reference signal sent by a transmitting end, where the reference signal is carried on one or more beams, or each reference signal Group carrying The reference signal group is a reference signal group obtained by dividing the reference signal according to a time-frequency code resource; the receiving end acquires a beam sequence number and channel state information according to the reference signal; the receiving The terminal transmits a set including the beam sequence number and the channel state information to the transmitting end.
  • a feedback device for beam information including: a first receiving module, configured to receive a reference signal sent by a transmitting end, where the reference signal is carried on one or more beams Or each reference signal group is carried on the same beam, the reference signal group is a reference signal group obtained by dividing the reference signal according to a time-frequency code resource; and the acquiring module is configured to acquire a beam sequence number according to the reference signal And channel state information; the first sending module is configured to send the set including the beam sequence number and the channel state information to the transmitting end.
  • a receiving end comprising a communication device and a processor
  • the communication device is configured to receive a reference signal transmitted by a transmitting end, wherein the reference signal is carried in one or Multiple reference beams, or each reference signal group, carried on the same beam, the reference signal group is a reference signal group obtained by dividing the reference signal according to a time-frequency code resource; and will include a beam sequence number and a channel state A set of information is sent to the sender; the processor is configured to acquire the set based on the reference signal.
  • a receiving end including a communication device, configured to send configuration information of an antenna and a beam to a transmitting end, where the configuration information is used to indicate an antenna of the transmitting end or The beam is configured.
  • a storage medium is also provided.
  • the storage medium is configured to store program code for performing the steps of: receiving, by the receiving end, a reference signal transmitted by the transmitting end, wherein the reference signal is carried on one or more beams, or each reference signal group is carried in the same On the beam, the reference signal group is a reference signal group obtained by dividing the reference signal according to a time-frequency code resource; the receiving end acquires a beam sequence number and channel state information according to the reference signal; the receiving end includes The set of beam numbers and the channel state information are sent to the transmitting end.
  • a storage medium is also provided.
  • the storage medium is configured to store program code for performing the following steps: the receiving end sends configuration information of the antenna and the beam to the transmitting end, where the configuration information is used to instruct the transmitting end to configure the antenna or beam of the transmitting end.
  • the receiving end since the receiving end receives the reference signal transmitted by the transmitting end and acquires the beam sequence number and channel state information according to the reference signal, and then feeds back the set including the beam sequence number and the channel state information to the transmitting end, the receiving end is configured to the beam. And the feedback of the channel state information, so that the receiver cannot obtain the beam sequence number and the channel state information according to the feedback of the transmitting end, so that the receiving end cannot feedback the correlation characteristics between the beams, and then the transmitting end cannot according to the relevant characteristics of the receiving end. Accurate and flexible data transmission reduces the problem of system diversity and multiplexing gain.
  • the transmitter can accurately and flexibly transmit data according to the relevant characteristics of the receiver, which improves the diversity and multiplexing gain of the system.
  • FIG. 1 is a block diagram showing a hardware configuration of a mobile terminal of a method for feeding back beam information according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a feedback method of beam information according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a feedback method of configuration information according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a hybrid precoding transceiver according to an alternative embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a transmitting end beam, a receiving end beam, and a propagation channel according to an alternative embodiment of the present disclosure
  • FIG. 6 is a schematic diagram (1) of a beam scan set according to an alternative embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a beam scan set (2) according to an alternative embodiment of the present disclosure.
  • FIG. 8 is a flowchart (1) of a feedback method of beam information according to an alternative embodiment of the present disclosure
  • FIG. 9 is a flowchart (2) of a feedback method of beam information according to an alternative embodiment of the present disclosure.
  • FIG. 10 is a structural block diagram of a feedback device of beam information according to an embodiment of the present disclosure.
  • FIG. 11 is a structural block diagram (1) of a feedback device for beam information according to an alternative embodiment of the present disclosure
  • FIG. 12 is a structural block diagram (2) of a feedback device for beam information according to an alternative embodiment of the present disclosure
  • FIG. 13 is a structural block diagram of a feedback device of configuration information according to an embodiment of the present disclosure.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal of a beam information feedback method according to an embodiment of the present disclosure.
  • the mobile terminal 10 may include one or more (only one shown) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA).
  • FIG. 1 is merely illustrative and does not limit the structure of the above electronic device.
  • the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.
  • the memory 104 can be used to store software programs of the application software and modules, such as program instructions/modules corresponding to the feedback method of the beam information in the embodiment of the present disclosure, and the processor 102 executes by executing the software programs and modules stored in the memory 104.
  • Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 104 may further include memory remotely located relative to processor 102, which may be connected to mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 106 is for receiving or transmitting data via a network. Specific examples of the above network may include mobile terminals The wireless network provided by the communication provider of terminal 10.
  • the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 106 can be a Radio Frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF Radio Frequency
  • FIG. 2 is a flowchart of a method for feeding back beam information according to an embodiment of the present disclosure. As shown in FIG. 2, the flow includes the following steps:
  • Step S202 The receiving end receives the reference signal sent by the sending end, where the reference signal is carried on one or more beams, or each reference signal group is carried on the same beam, and the reference signal group is based on the time-frequency code resource pair. a reference signal group obtained by dividing the reference signal;
  • Step S204 the receiving end acquires beam sequence number and channel state information according to the reference signal.
  • Step S206 the receiving end sends the set including the beam sequence number and the channel state information to the transmitting end.
  • the beam sequence number corresponds to an antenna port number, a resource sequence number, or a sequence number, but is not limited thereto;
  • the beam is a resource, such as a source precoding, a terminating precoding, an antenna port, and an antenna weight.
  • the beam sequence number can be replaced with a resource index because the beam can be bound to some time-frequency code resources for transmission.
  • the beam may also be a transmission (such as transmission or reception), and the foregoing transmission mode may include space division multiplexing, frequency domain/time domain diversity, and the like;
  • the channel state information includes a Precoding Matrix Indicator (PMI for short). ), Channel Quality Indicator (CQI), Reference Signal Receiving Power (RSRP), and Reference Signal Receiving Quality (RSRQ).
  • PMI Precoding Matrix Indicator
  • CQI Channel Quality Indicator
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the receiving end receives the reference signal sent by the transmitting end, and obtains the beam sequence number and the channel state information according to the reference signal, and then feeds the set including the beam sequence number and the channel state information to the transmitting end, thereby realizing the receiving end for the beam. And the feedback of the channel state information, so that the receiver cannot obtain the beam sequence number and the channel state information according to the feedback of the transmitting end, so that the receiving end cannot feedback the correlation characteristics between the beams, and then the transmitting end cannot according to the relevant characteristics of the receiving end.
  • Accurate and flexible data transmission reduces the problem of system diversity and multiplexing gain.
  • the transmitter can accurately and flexibly transmit data according to the relevant characteristics of the receiver, which improves the diversity and multiplexing gain of the system.
  • the execution body of the foregoing steps may be a base station, a terminal, or the like, but is not limited thereto.
  • the above set includes Q packets, where Q is an integer greater than or equal to 1; each packet includes at least one of: beam sequence number, channel state information, group information, and spatial parameter information set .
  • each packet includes one or more of beam sequence number, channel state information, group information, and spatial parameter information set, but the set includes beam sequence number and channel state information.
  • the grouping of the above set may refer to dividing a beam and associated channel state information having the same channel characteristics and/or transmission scheme into a group, wherein the channel characteristics include both physical propagation channel characteristics, such as horizontal transmission azimuth, and vertical transmission. Azimuth, horizontal receive azimuth, vertical receive azimuth, etc., also include radio frequency and baseband circuit characteristics, such as antenna array characteristics, antenna placement, and baseband time offset, frequency offset and phase noise.
  • the criteria for grouping include at least one of the following:
  • the grouping is performed according to the QCL relationship; however, embodiments of the present disclosure are not limited to the criteria of the above grouping, and the grouping may be referred to as a set.
  • the beam sequence number includes at least one of: a transmit beam sequence number and a receive beam sequence number
  • the channel state information includes at least one of: transmit beam channel state information, receive beam channel state information, and transmit beam.
  • the channel state information combined with the receive beam; the spatial parameter information set includes at least one of the following: a transmit beam spatial parameter information set, a receive beam spatial parameter information set, and a spatial parameter information set of the transmit beam and the receive beam combination.
  • the receiving beam is a beam of the receiving end that does not need to be indicated, or the transmitting end passes the current reference signal and the QCL of the antenna port and the reference signal (or reference reference signal) of the feedback report of the receiving end and the QCL indication of the antenna port. Beam resources at the receiving end.
  • the grouped group can be carried by an uplink shared channel (UPSCH), and the receiving end can correlate the channels between the beams by using an explicit spatial parameter or an implicit beam packet feedback method.
  • UPSCH uplink shared channel
  • the feature feedback is sent to the sender, and the report format combination of the grouped collection is as follows:
  • Scheme 1 comprising N packets, each packet includes a packet sequence number, one or more transmit beam sequence numbers, and feedback channel state information of the best beam in the transmit beam; wherein the number of transmit beams in each packet may be different Report format: ⁇ packet sequence number, ⁇ send beam sequence number, ..., transmit beam sequence number ⁇ , channel state information of the best beam ⁇ , as shown in Table 1:
  • each packet includes a receive beam sequence number (or a virtual sequence number of the receive beam, a quasi-receive beam sequence number); each receive beam feeds back K transmit beams, and the number of receive beams is M Report format:
  • Scheme 3 report format: ⁇ transmit beam sequence number, channel state information, packet sequence number ⁇ , ...; wherein the packet sequence number can be distinguished by time domain, frequency domain or code domain, and the criterion for dividing K transmit beams into one packet is The K transmit beams collectively correspond to a receive beam or a beamforming implementation mode, and the packet sequence numbers are sequentially incremented from 0. As shown in Table 3:
  • the existing packet is grouped one level higher, and the higher layer primary packet sequence number is added, and the format is as shown in Table 4, ie, the top layer group.
  • the criterion is to group information corresponding to the same TXRU or the same antenna panel into one group; and the criterion of the underlying packet is to group information corresponding to the same TXRU or the same receiving beam under the same antenna panel or the same receiving mode.
  • the underlying grouping is a subset of the top level grouping.
  • all the packet sequence numbers may be embodied in an implicit form, such as the location of the time-frequency resource occupied by the packet information involved in the packet sequence number.
  • a higher level packet (greater than or equal to 3 layers) is allowed, characterized by the information contained in the underlying packet being a subset of the information of the higher layer packet.
  • Scheme 4 report format: ⁇ send beam sequence number, channel state information, spatial parameter information set ⁇ , ...; the packet sequence number can be distinguished by the radio frequency resources in use, as shown in Table 5:
  • the group information is one of the following information: a packet sequence number; a reference beam sequence number; and a reference QCL index.
  • the receiving end selects a beam by using at least one of the following criteria: maximizing the signal to noise ratio of the receiving end; maximizing the signal to interference and noise ratio of the receiving end; maximizing the received signal strength; and maximizing the received signal quality.
  • the beam is selected more accurately by the above criteria.
  • the channel characteristics and/or transmission schemes of the plurality of packets having the same group information satisfy at least one of the following conditions: the transmission scheme is the same; the channel characteristics are the same; the channel characteristics are the same, wherein the channel characteristics are the same.
  • Quasi-identical means that the difference between channel characteristics is within a specified range or constraint, which is determined by dynamic configuration or pre-set.
  • the group information may be the same as at least one of the following parameters: received signal power, horizontal transmission azimuth, vertical transmission azimuth, horizontal reception azimuth, vertical reception azimuth, average arrival time, cluster arrival time, Predetermined multiplexing mode, TA parameters, CP length, space division multiplexing mode, and QCL relationship.
  • the group information is transmitted in one of the following manners: a time-frequency code resource carrying group information; and outputting group information in a display manner.
  • each packet further includes a terminator, wherein the terminator is located at an end of the packet and/or at an end of the set.
  • the terminator is transmitted in one of the following manners: a time-frequency code resource that carries group information; and a packet and a set that are received by the receiving end in each cycle by using periodic or half-cycle feedback.
  • the number is 1; the number of packets and sets sent by the receiving end that receives periodic or half-cycle feedback under aperiodic triggering is 1; explicit output The end of the value of a specific value or a valid range of the non-feedback signal.
  • the spatial parameter information set includes at least one of: an angle of arrival; a lobe width; an optimal receiving angle of the receiving beam; a subband channel estimation; an average delay; a spatial correlation coefficient; Channel response correlation coefficient; frequency domain channel response correlation coefficient.
  • the angle of arrival may include a horizontal angle of arrival and a vertical angle of arrival;
  • the lobe width refers to a lobe width of a particular attenuation at a maximum beam gain, such as a half power lobe width;
  • the receive beam The optimal receiving angle may include a horizontal angle and a vertical angle;
  • the above average delay refers to a weighted average value under a relative delay, such as a root mean square delay;
  • the above spatial correlation coefficient is a precoding weight corresponding to two beams.
  • the time domain channel response correlation coefficient or the frequency domain channel response correlation coefficient is a correlation value of the time domain or the frequency domain channel corresponding to the two beams.
  • each packet has a packet sequence number, wherein each packet has a fixed K transmit beam sequence number and a spatial parameter.
  • the horizontal arrival angle and the vertical arrival angle in the spatial parameter information set can be obtained by the angle of arrival estimation or by the direction angle of the reception beam that obtains the maximum power.
  • the horizontal arrival angle or vertical angle of arrival that cannot be obtained may be configured to be 0 by default.
  • Table 6a illustrates an embodiment of a report format combination format for a set of beam sequence numbers and channel state information.
  • the higher level one packet is the receive beam set packet, and the lower level one packet is grouped by the antenna set.
  • the antenna set packet is a receive antenna set packet.
  • the lower level packet passes the same packet sequence number (virtual antenna set points) The group number) indicates that, in each higher level, information from that antenna panel/TXRU is implicitly added. Wherein, under the same set of receive beams, the reported different transmit beams can be simultaneously received by the user.
  • the reported different transmit beams can be used in the space division multiplexing mode; under the same antenna set and the same receive beam set, the reported different The transmit beam may not be available in space division multiplexing mode. Under different sets of receive beams, the reported different transmit beams may not be simultaneously received by the user.
  • the same receive beam set packet and the beam under the same antenna set packet are quasi-co-located.
  • the base station configures a base station to transmit beam packets to the user.
  • the internal beams of the packets cannot be simultaneously transmitted.
  • the elements in the same receiving beam set packet need to send beam packets from different base stations.
  • Table 6b illustrates another embodiment of a report format combination format for a set of beam sequence numbers and channel state information.
  • the higher level one packet is the antenna set grouping
  • the lower level one group is the receiving beam set grouping or the receiving side space parameter.
  • the receiving side spatial parameter is a QCL ID or a spatial parameter quantized value under the receiving end spatial parameter.
  • the quantization region may be a different quantization step and quantization range configured for different UEs. Under different antenna sets and the same set of receive beams, the reported different transmit beams can be simultaneously received by the user and used in the space division multiplexing mode.
  • the reported transmit beams may not be available for spatial division multiplexing mode, but may be received simultaneously by the user.
  • the reported transmit beams may not be simultaneously received by the user.
  • the same receive beam set packet and the beam under the same antenna set packet are quasi-co-located.
  • the base station configures a base station to transmit beam packets to the user.
  • the internal beams of the packets cannot be simultaneously transmitted.
  • the elements in the same receiving beam set packet need to send beam packets from different base stations.
  • the receiving end groups or sets group information by one of the following methods: grouping without a reference beam; grouping based on a reference beam; wherein the transmitting end passes the reference signal index, QCL information The virtual cell sequence number or the physical cell sequence number notifies the receiving end of the reference beam.
  • performing the packet without the reference beam refers to only the result of the current measurement, that is, putting the beams having the same channel characteristics and/or transmission scheme into the same packet; grouping the reference based on the reference beam
  • the reference beam or reference signal known by the receiving end constitutes a set, and the beams having the same channel characteristics and/or transmission schemes in one of any reference beam or reference signal are put into the same group, or share the same group.
  • Information; the group information is the sequence number or index of the reference signal carried by the corresponding reference beam or reference beam.
  • the foregoing set further includes: a reference beam sequence, wherein the reference beam sequence number is at least one of: a beam sequence number reported by the receiving end, a reference signal sequence number, an antenna port, a QCL hypothesis sequence number, and a virtual cell. Serial number, physical cell serial number.
  • the receiving end acquires a reference beam sequence number by mapping the group information in the set.
  • mapping may be mapped correspondingly by the same function or a specific function, but is not limited thereto.
  • the transmitting end performs group combining for Q packets to generate R packets, where R is an integer and 1 ⁇ R ⁇ Q.
  • the above set further includes T packets indicated in the Q packets, and the number of antenna ports of the T packets, where T is an integer and 1 ⁇ T ⁇ Q.
  • the spatial parameter in the spatial parameter information set is obtained by acquiring the spatial parameter according to the received reference signal, and the first spatial parameter corresponding to the reference beam and the received reference signal.
  • the relative values of the two spatial parameters acquire spatial parameters.
  • the foregoing set further includes: information about a frequency domain response phase difference between beams corresponding to the beam sequence number; and a subband response phase difference between the beams corresponding to the beam sequence number.
  • the receiving end after the receiving end sends the set of beam sequence numbers and channel state information to the sending end, the receiving end sends the set information of the set to the sending end, where the set information includes at least one of the following: each The panel where the packet is located, one or more packets of the shared panel, the antenna port where each packet is located, one or more packets sharing the antenna port, the group of the frequency domain resource block can be shared, and the grouping of the time domain resource blocks can be shared.
  • the optimal beam in each packet each The panel where the packet is located, one or more packets of the shared panel, the antenna port where each packet is located, one or more packets sharing the antenna port, the group of the frequency domain resource block can be shared, and the grouping of the time domain resource blocks can be shared.
  • the receiving end before receiving the reference signal sent by the sending end, the receiving end receives the report format combination of the set sent by the sending end, where the report format combination is used to indicate that the receiving end sends the format of the set.
  • the receiving end may determine the format of the sending set according to the report format combination, and improve the data transmission efficiency and the compatibility between the receiving end and the transmitting end.
  • the receiving end after the receiving end receives the report format combination sent by the sending end, the receiving end sends a report format request to the sending end, where the report format request is used to instruct the sending end to allocate the time frequency for feedback. Resources.
  • the sender after the sender receives and confirms the report format request sent by the sender, the sender allocates video resources for feedback.
  • the foregoing report format combination may include at least one of the following: an optional subband bandwidth in the subband channel state information, an optional set format, and a maximum number of packets or a maximum number of packets in the set. Number, optional channel state information; optional set of packet criteria, optional beam sequence number and configuration criteria for packet sequence number of channel state information.
  • FIG. 3 is a flowchart of a method for feeding back configuration information according to an embodiment of the present disclosure. As shown in FIG. 3, the process includes the following steps:
  • Step S302 The receiving end sends configuration information of the antenna and the beam to the transmitting end, where the configuration information is used to instruct the transmitting end to configure the antenna or the beam of the transmitting end.
  • the transmitting end quickly configures the antenna and the beam to implement fast configuration of the antenna and the beam at the transmitting end.
  • the foregoing configuration information includes at least one of the following information: the number of antenna panels; the number of TXRUs under each antenna panel; the threshold of multi-stream beam space correlation characteristics; and the independent division of the antenna port QCL;
  • the optional subband bandwidth in the subband channel state information can be configured; the parameter information of the feedback space can be supported; and the feedback of the beam sequence number and channel state information based on the reference beam is supported.
  • the antenna panel may be a coherent panel, but is not limited thereto.
  • the antenna panels are one or more.
  • a report format combination of a set of beam sequence numbers and channel state information Each packet has a packet sequence number, a transmit beam sequence number, a set of spatial parameter information, including channel response correlation coefficients, and an RSRP message.
  • the packet sequence number may be mapped to a reference beam or a reference signal set sequence number through a table or a function, that is, the packet sequence number is equal to the reference beam or the reference signal set sequence number, thereby indicating that the packet has the same or similar channel as the reference beam or the reference signal.
  • the channel response correlation coefficient refers to the correlation value of the time domain or frequency domain channel corresponding to the two beams. Among them, the channel The response correlation coefficient c is calculated by the following formula:
  • H meas represents the channel response of the target beam and H ref represents the channel response under the reference beam.
  • each packet includes a packet sequence number, a transmit beam sequence number, and a spatial parameter information set. , including spatial correlation coefficients, and a CQI information.
  • the packet sequence number may be mapped to a reference beam or reference signal set sequence number by a table or a function, that is, the packet sequence number is equal to the reference beam or the reference signal set sequence number, thereby indicating that the packet has the same or similar channel characteristics as the reference beam or the reference signal or The same transfer mode.
  • the spatial correlation coefficient in the spatial parameter information set is expressed as the correlation value of the precoding weights corresponding to the two beams, and the spatial correlation coefficient c is calculated by the following formula:
  • W meas represents the antenna weight matrix of the 2D measurement receive beam
  • W ref represents the antenna weight matrix of the 2D reference receive beam
  • FIG. 4 is a schematic structural diagram of a hybrid precoding transceiver according to an alternative embodiment of the present disclosure.
  • a transmitting end and a receiving end configure a multi-antenna unit and a plurality of radio frequency paths.
  • Each of the RF paths and the antenna array unit are connected (or partially connected), and each antenna unit has a digital keyed phase shifter.
  • the high-band system implements beamforming at the analog end by applying different phase shift amounts to the signals on the respective antenna elements.
  • Each signal stream is loaded with an antenna weight vector (Antenna Weight Vector referred to as AWV) through a digitally keyed phase shifter, transmitted from the multi-antenna unit to the high-band physical propagation channel; at the receiving end, the RF signal received by the multi-antenna unit
  • the streams are weighted and combined into a single signal stream.
  • the receiver After receiving the radio frequency demodulation at the receiving end, the receiver finally obtains multiple received signal streams and is sampled and received by the digital baseband.
  • a hybrid precoding (or hybrid analog digital beamforming) transceiver can simultaneously generate RF beams directed in multiple directions.
  • FIG. 5 is a schematic diagram of a transmitting end beam, a receiving end beam, and a propagation channel according to an alternative embodiment of the present disclosure.
  • the transmitting end and the receiving end perform beam scanning and channel estimation.
  • the receiving end respectively faces a plurality of beam packets of different physical paths.
  • Each packet may include one or more transceiving beams, where TB represents a transmit beam and RB represents a receive beam.
  • FIG. 6 is a schematic diagram (1) of a beam scan set according to an alternative embodiment of the present disclosure.
  • a transmit candidate beam corresponds to a beam-related channel state information reference signal (Channel State Information – Reference Signal, referred to as CSI-RS) port or time-frequency code position, or transmit beam number to transmit reference signal.
  • the transmit beam sequence has a mapping relationship with the resource.
  • the reference signal is transmitted by scanning the transmit beam of the candidate candidate beam resource pool 62, and the receiving end receives the received beam using the receive beam set 64 and performs channel estimation.
  • FIG. 7 is a schematic diagram (2) of a beam scanning set according to an alternative embodiment of the present disclosure.
  • the transmitting end candidate beam resource pool 72 sends a reference signal to the receiving end beam set 74, and the transmitting end candidate beam corresponds to The reference signal is transmitted at a beam-related CSI-RS port or a time-frequency code position, or a transmission beam number.
  • the above-mentioned transmission beam sequence has a mapping relationship with the resource.
  • the reference beam and reference signal set 76 for feedback of beam sequence number and channel state information, and the reference beam and reference signal set 76 pass Downlink Control Indicator (DCI), media access control-control The element (Media Access Control-Control Element, DCI MAC-CE for short) or Radio Resource Control (RRC) signaling is notified to the pilot receiving end.
  • DCI Downlink Control Indicator
  • the element Media Access Control-Control Element, DCI MAC-CE for short
  • RRC Radio Resource Control
  • FIG. 8 is a flowchart (1) of a method for feeding back beam information according to an alternative embodiment of the present disclosure. As shown in FIG. 8, the flow is as follows:
  • Step S802 the sending end sends an optional report format of the beam sequence number and the channel state information set to the receiving end, where the optional report format group includes a set, and each element in the set corresponds to a specific report format configuration mode.
  • Step S804 the transmitting end sends N reference signals to the receiving end.
  • step S806 the receiving end performs signal processing, such as channel estimation and adjustment of the receiving beam.
  • Step S808 the receiving end sends a report format request to the sending end according to the result of the channel estimation.
  • Step S810 the sender acknowledges the report format request, triggers feedback, and allocates time-frequency resources for feedback.
  • Step S812 the receiving end feeds back the set of beam sequence numbers and channel state information to the transmitting end.
  • FIG. 9 is a flowchart (2) of a method for feeding back beam information according to an alternative embodiment of the present disclosure. As shown in FIG. 9, the flow is as follows:
  • Step S902 The receiving end sends the configuration and function information of the antenna and the beam to the transmitting end, where the configuration and function information of the antenna and the beam include at least one of the following information: the number of antenna panels; the number of TXRUs under each antenna panel; The threshold of the beam space correlation characteristic of the stream; supports the independent division of the antenna port QCL; the optional subband bandwidth in the configurable subband channel state information; the parameter information supporting the feedback space; and the beam sequence number and channel state information based on the reference beam feedback of.
  • Step S904 the transmitting end sends the reference beam or the reference signal set information to the receiving end.
  • Step S906 the transmitting end sends N reference signals to the receiving end.
  • step S908 the receiving end performs signal processing, such as channel estimation and adjustment of the receiving beam.
  • Step S910 the transmitting end triggers the feedback and sends the allocated time-frequency resource for feedback to the receiving end.
  • Step S912 the receiving end feeds back the beam sequence number and the channel state information to the sending end.
  • the receiving end sets the beam sequence number and the channel state information according to the default reporting format or the reporting format configured by the upper layer MAC-CE or RRC.
  • the collection is fed back to the sender.
  • a feedback device for the beam information is provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 10 is a structural block diagram of a feedback apparatus for beam information according to an embodiment of the present disclosure.
  • the apparatus includes a first receiving module 102, configured to receive a reference signal sent by a transmitting end, where the reference signal is carried in One or more beams, or each reference signal group is carried on the same beam, the reference signal group is a reference signal group obtained by dividing the reference signal according to the time-frequency code resource; and the obtaining module 104 is configured to obtain according to the reference signal.
  • the beam sequence number and the channel state information; the first sending module 106 is configured to send the set including the beam sequence number and the channel state information to the sending end.
  • the above set includes Q packets, where Q is an integer greater than or equal to 1; each packet includes at least one of: beam sequence number, channel state information, group information, and spatial parameter information set .
  • the beam sequence number includes at least one of: a transmit beam sequence number and a receive beam sequence number
  • the channel state information includes at least one of: transmit beam channel state information, receive beam channel state information, and transmit beam.
  • the channel state information combined with the receive beam; the spatial parameter information set includes at least one of the following: a transmit beam spatial parameter information set, a receive beam spatial parameter information set, and a spatial parameter information set of the transmit beam and the receive beam combination.
  • FIG. 11 is a structural block diagram (1) of a feedback device for beam information according to an alternative embodiment of the present disclosure.
  • the device includes all the modules shown in FIG. And a second receiving module 112, configured to receive a report format combination of the foregoing set sent by the sending end, where the report format combination is used to instruct the receiving end to send the format of the set.
  • FIG. 12 is a structural block diagram (2) of a feedback device for beam information according to an alternative embodiment of the present disclosure.
  • the device includes all the modules shown in FIG.
  • the second sending module 122 is further configured to send a report format request to the sending end, where the report format request is used to instruct the sending end to allocate time-frequency resources for feedback.
  • FIG. 13 is a structural block diagram of a feedback device for configuring information according to an embodiment of the present disclosure.
  • the device includes a sending module 132 for The transmitting end sends configuration information of the antenna and the beam, where the configuration information is used to indicate that the transmitting end allocates the antenna or the beam of the transmitting end.
  • the foregoing configuration information includes at least one of the following information: the number of antenna panels; the number of TXRUs under each antenna panel; the threshold of multi-stream beam space correlation characteristics; and the independent division of the antenna port QCL;
  • the optional subband bandwidth in the subband channel state information can be configured; the parameter information of the feedback space can be supported; and the feedback of the beam sequence number and channel state information based on the reference beam is supported.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • a receiving end is further provided, and the receiving end is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the receiving end includes a communication device and a processor, wherein the communication device is configured to receive a reference signal sent by the transmitting end, where the reference signal is carried on one or more beams, or each reference signal group is carried in the same On the beam, the reference signal group is a reference signal group obtained by dividing the reference signal according to the time-frequency code resource; and transmitting the set including the beam sequence number and the channel state information to the transmitting end; and the processor is configured to acquire the set according to the reference signal .
  • the above set includes Q packets, where Q is an integer greater than or equal to 1; each packet includes at least one of: beam sequence number, channel state information, group information, and spatial parameter information set
  • a receiving end is further provided, where the receiving end includes a communication device, configured to send configuration information of the antenna and the beam to the transmitting end, where the configuration information is used to indicate that the transmitting end performs the antenna or the beam on the transmitting end. Configuration.
  • the foregoing configuration information includes at least one of the following information: the number of antenna panels; the number of TXRUs under each antenna panel; the threshold of multi-stream beam space correlation characteristics; and the independent division of the antenna port QCL;
  • the optional subband bandwidth in the subband channel state information can be configured; the parameter information of the feedback space can be supported; and the feedback of the beam sequence number and channel state information based on the reference beam is supported.
  • Embodiments of the present disclosure also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps: S1, the receiving end receives a reference signal sent by the transmitting end, where the reference signal is carried in one or more beams. Up, or each reference signal group is carried on the same beam, the reference signal group is a reference signal group obtained by dividing the reference signal according to the time-frequency code resource; S2, the receiving end acquires the beam sequence number and channel state information according to the reference signal; S3 The receiving end sends the set containing the beam sequence number and channel state information to the transmitting end.
  • the storage medium is further configured to store program code for performing the following steps: the receiving end selects a beam by using at least one of the following criteria: maximizing the signal to noise ratio of the receiving end; maximizing the signal to interference and noise ratio of the receiving end; maximizing receiving Signal strength; maximizes received signal quality.
  • the storage medium is further configured to store program code for performing the following steps: the group information is transmitted by one of: a time-frequency code resource carrying group information; and the group information is displayed.
  • the storage medium is further configured to store program code for performing the following steps: the receiving end groups or sets the group information by one of the following methods: grouping without a reference beam; grouping based on the reference beam; The transmitting end notifies the receiving end of the reference beam by using the reference signal index, the QCL information, the virtual cell sequence number, or the physical cell sequence number.
  • the storage medium is further configured to store program code for performing the step of: the receiving end acquires the reference beam sequence number by mapping the group information in the set.
  • the storage medium is further arranged to store program code for performing the following steps: the sender performs packet combining on the Q packets to generate R packets, where R is an integer and 1 ⁇ R ⁇ Q.
  • the storage medium is further configured to store program code for performing the following steps: the spatial parameter in the set of spatial parameter information is obtained by one of: obtaining a spatial parameter according to the received reference signal; and corresponding to the reference beam according to the first The spatial parameter and the relative value of the second spatial parameter of the received reference signal acquire a spatial parameter.
  • the storage medium is further configured to store program code for performing the following steps: the receiving end sends the set information of the set to the sending end, wherein the set information includes at least one of the following: a panel where each group is located, a shared panel One or more packets, one antenna port where each packet is located, one or more packets sharing the antenna port, can share packets of frequency domain resource blocks, can share packets of time domain resource blocks, and optimal beam in each packet .
  • the storage medium is further configured to store program code for performing the following steps: the receiving end receives the report format combination of the set sent by the sending end, wherein the report format combination is used to indicate that the receiving end sends the format of the set.
  • the storage medium is further configured to store program code for performing the following steps: the receiving end sends the sending end to the sending end A report format request, wherein the report format request is used to instruct the sender to allocate time-frequency resources for feedback.
  • Embodiments of the present disclosure also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps: the receiving end sends configuration information of the antenna and the beam to the transmitting end, where the configuration information is used to indicate the sending end The antenna or beam of the transmitting end is configured.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • modules or steps of the present disclosure described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.
  • the present disclosure is applicable to the field of communication, and is used to solve the problem that the receiving end cannot obtain the beam sequence number and the channel state information according to the feedback of the transmitting end, so that the receiving end cannot feedback the correlation characteristics between the beams, and then the transmitting end cannot perform the relevant characteristics according to the receiving end.
  • Accurate and flexible data transmission reduces the problem of system diversity and multiplexing gain, so that the transmitting end can perform accurate and flexible data transmission according to the relevant characteristics of the receiving end, and improve the diversity and multiplexing gain of the system.

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Abstract

本公开提供了一种波束信息、配置信息的反馈方法及装置，其中该方法包括：接收端接收发送端发送的参考信号，其中，参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，参考信号组为根据时频码资源对参考信号划分得到的参考信号组；接收端根据参考信号获取波束序号和信道状态信息；接收端将包含有波束序号和信道状态信息的集合发送到发送端，因此，本公开的技术方案解决了由于接收端无法对于波束之间的相关特性进行反馈，继而发送端无法根据接收端的相关特性进行准确和灵活的数据传输，降低了系统的分集和复用增益的问题，提高了系统的分集和复用增益的效果。

Description

波束信息、配置信息的反馈方法及装置 技术领域
本公开涉及通信领域，具体而言，涉及一种波束信息、配置信息的反馈方法及装置。
背景技术
超宽带宽的高频段，即毫米波通信，成为未来移动通信发展的重要方向，吸引了全球的学术界和产业界的目光。特别是，在当下日益拥塞的频谱资源和物理网大量接入时，毫米波的优势变得越来越有吸引力。很多标准组织，如IEEE和3GPP，都开始展开相应的标准化工作，如，在3GPP标准组，高频段通信凭借着其大带宽的显著优势将会成为5G新无线接入技术(New Radio Access Technology，简称为New RAT)的重要创新点。
但是，高频段通信也存在链路衰减的问题，如，传播路径损失大、空气(尤其是氧气)吸收大、雨衰影响较重。针对上述问题，高频段通信系统可以利用高频段波长较短和易于天线集成等特点，通过多天线阵列和波束赋形方案来获取高天线增益和对抗信号传输损耗，进而以确保链路余量和提升通信鲁棒性。
在天线权重(又称为预编码和波束)训练过程中，高频段发送端发送训练导频，接收端接收信道并执行信道估计。然后，高频段接收端需要向训练发送端反馈信道状态信息，便于实现收发端从可选的收发端天线权重对中，找到可以用于多路数据传输所需要的多组收发端天线权重对，提升整体的频谱效率。
现有毫米波通信系统中，波束相关信息反馈多个最优信道质量下的波束序号和其信道质量，来产生相应的波束对用于数据传输。但是，在需要产生多个波束对来获得空间分集或复用增益时，现有反馈方案提供的多个波束对可能是来自相同的物理路径，并且具有非常强的相关特性。例如，当选择最优波束对来传输数据并被遮挡时，现有方法的次优波束对因为与最优波束有很高的相关性，也有很大概率下被遮挡，即无法有效地获得分集增益，因此，在相关技术中，由于接收端无法根据发送端的反馈获知波束序号和信道状态信息，导致接收端无法对于波束之间的相关特性进行反馈，继而发送端无法根据接收端的相关特性进行准确和灵活的数据传输，降低了系统的分集和复用增益。
针对上述问题，相关技术中尚未提出有效的解决方案。
发明内容
本公开实施例提供了一种波束信息、配置信息的反馈方法及装置，以至少解决相关技术中由于接收端无法对于波束之间的相关特性进行反馈，导致发送端无法根据接收端的相关特性进行准确和灵活的数据传输，降低了系统的分集和复用增益的问题。
根据本公开的一个实施例，提供了一种波束信息的反馈方法，包括：接收端接收发送端发送的参考信号，其中，所述参考信号携带在一个或多个波束上，或每个参考信号组携 带在同一个波束上，所述参考信号组为根据时频码资源对所述参考信号划分得到的参考信号组；所述接收端根据所述参考信号获取波束序号和信道状态信息；所述接收端将包含有所述波束序号和所述信道状态信息的集合发送到所述发送端。
根据本公开的另一个实施例，提供了一种波束信息的反馈装置，包括：第一接收模块，设置为接收发送端发送的参考信号，其中，所述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，所述参考信号组为根据时频码资源对所述参考信号划分得到的参考信号组；获取模块，设置为根据所述参考信号获取波束序号和信道状态信息；第一发送模块，设置为将包含有所述波束序号和所述信道状态信息的集合发送到所述发送端。
根据本公开的另一个实施例，提供了一种接收端，包括通信装置和处理器，其中，所述通信装置，设置为接收发送端发送的参考信号，其中，所述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，所述参考信号组为根据时频码资源对所述参考信号划分得到的参考信号组；以及将包含有波束序号和信道状态信息的集合发送到所述发送端；所述处理器，设置为根据所述参考信号获取所述集合。
根据本公开的另一个实施例，提供了一种接收端，包括通信装置，设置为向发送端发送天线和波束的配置信息，其中，所述配置信息用于指示发送端对该发送端的天线或波束进行配置。
根据本公开的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：接收端接收发送端发送的参考信号，其中，所述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，所述参考信号组为根据时频码资源对所述参考信号划分得到的参考信号组；所述接收端根据所述参考信号获取波束序号和信道状态信息；所述接收端将包含有所述波束序号和所述信道状态信息的集合发送到所述发送端。
根据本公开的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：接收端向发送端发送天线和波束的配置信息，其中，所述配置信息用于指示发送端对该发送端的天线或波束进行配置。
通过本公开，由于接收端接收发送端发送的参考信号并根据该参考信号获取波束序号和信道状态信息，随后将包含有波束序号和信道状态信息的集合反馈到发送端，实现了接收端对于波束以及信道状态信息的反馈，因此，解决了由于接收端无法根据发送端的反馈获知波束序号和信道状态信息，导致接收端无法对于波束之间的相关特性进行反馈，继而发送端无法根据接收端的相关特性进行准确和灵活的数据传输，降低了系统的分集和复用增益的问题，达到发送端可以根据接收端的相关特性进行准确和灵活的数据传输，提高了系统的分集和复用增益的效果。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本申请的一部分，本公开的示 意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1是本公开实施例的波束信息的反馈方法的移动终端的硬件结构框图；
图2是根据本公开实施例的波束信息的反馈方法的流程图；
图3是根据本公开实施例的配置信息的反馈方法的流程图；
图4为根据本公开的可选实施例的混合预编码的收发机结构示意图；
图5为根据本公开可选实施例的发送端波束，接收端波束和传播信道的示意图；
图6为根据本公开可选实施例的波束扫描集合示意图(一)；
图7为根据本公开可选实施例的波束扫描集合示意图(二)；
图8是根据本公开可选实施例的波束信息的反馈方法的流程图(一)；
图9是根据本公开可选实施例的波束信息的反馈方法的流程图(二)；
图10是根据本公开实施例的波束信息的反馈装置的结构框图；
图11是根据本公开可选实施例的波束信息的反馈装置的结构框图(一)；
图12是根据本公开可选实施例的波束信息的反馈装置的结构框图(二)；
图13是根据本公开实施例的配置信息的反馈装置的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本公开。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
实施例1
本申请实施例1所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例，图1是本公开实施例的波束信息的反馈方法的移动终端的硬件结构框图。如图1所示，移动终端10可以包括一个或多个(图中仅示出一个)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)、用于存储数据的存储器104、以及用于通信功能的传输装置106。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，移动终端10还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可用于存储应用软件的软件程序以及模块，如本公开实施例中的波束信息的反馈方法对应的程序指令/模块，处理器102通过运行存储在存储器104内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至移动终端10。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106用于经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终 端10的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network Interface Controller，NIC)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(Radio Frequency，RF)模块，其用于通过无线方式与互联网进行通讯。
图2是根据本公开实施例的波束信息的反馈方法的流程图，如图2所示，该流程包括如下步骤：
步骤S202，接收端接收发送端发送的参考信号，其中，上述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，参考信号组为根据时频码资源对参考信号划分得到的参考信号组；
步骤S204，接收端根据上述参考信号获取波束序号和信道状态信息；
步骤S206，接收端将包含有波束序号和信道状态信息的集合发送到发送端。
在本实施例中，上述波束序号对应于天线端口序号，资源序号，或序列序号，但是并不限于此；上述波束为一种资源，如发端预编码，收端预编码、天线端口，天线权重矢量和天线权重矩阵等，波束序号可以被替换为资源索引，因为波束可以与一些时频码资源进行传输上的绑定。波束也可以为一种传输(如发送或接收)方式，上述传输方式可以包括空分复用、频域/时域分集等；上述信道状态信息包括预编码矩阵指示(Precoding Matrix Indicator，简称为PMI)，信道质量指示(Channel Quality Indicator，简称为CQI)，参考信号接收功率(Reference Signal Receiving Power，简称为RSRP)和参考信号接收质量(Reference Signal Receiving Quality，简称为RSRQ)等。
通过上述步骤，由于接收端接收发送端发送的参考信号并根据该参考信号获取波束序号和信道状态信息，随后将包含有波束序号和信道状态信息的集合反馈到发送端，实现了接收端对于波束以及信道状态信息的反馈，因此，解决了由于接收端无法根据发送端的反馈获知波束序号和信道状态信息，导致接收端无法对于波束之间的相关特性进行反馈，继而发送端无法根据接收端的相关特性进行准确和灵活的数据传输，降低了系统的分集和复用增益的问题，达到发送端可以根据接收端的相关特性进行准确和灵活的数据传输，提高了系统的分集和复用增益的效果。
可选地，上述步骤的执行主体可以为基站或者终端等，但不限于此。
在一个可选的实施例中，上述集合包括Q个分组，其中，Q为大于或等于1的整数；每个分组包括以下至少之一：波束序号、信道状态信息、组信息和空间参数信息集合。
在本实施例中，每个分组包括波束序号、信道状态信息、组信息和空间参数信息集合中的一种信息或者多种，但是在上述集合是包含有波束序号和信道状态信息的。上述集合的分组可以是指将具有相同信道特性和/或传输方案的波束和相关的信道状态信息划分成一个组，其中，该信道特征既包括物理传播信道特征，例如水平发送方位角，垂直发送方位角，水平接收方位角，垂直接收方位角等，也包括射频和基带电路的特征，例如天线阵子特征，天线摆放，以及基带时偏，频偏和相位噪声等。
分组的准则包括以下至少之一：
根据接收信号功率进行分组；
根据水平发送方位角进行分组；
根据垂直发送方位角进行分组；
根据水平接收方位角进行分组；
根据垂直接收方位角进行分组；
根据平均到达时间进行分组；
根据簇到达时间进行分组；
根据资源对应的接收资源进行分组；
根据预定复用方式进行分组；
根据定时提前(Timing Advance，简称为TA)参数进行分组；
根据循环前缀(Cyclic Prefix，简称为CP)长度进行分组；
根据空分复用方式进行分组；
根据QCL关系进行分组；但是本公开实施例并不限于上述分组的准则，且分组可以称之为集合。
在一个可选的实施例中，上述波束序号包括以下至少之一：发送波束序号和接收波束序号；上述信道状态信息包括以下至少之一：发送波束信道状态信息、接收波束信道状态信息、发送波束和接收波束组合的信道状态信息；上述空间参数信息集合包括以下至少之一：发送波束空间参数信息集合、接收波束空间参数信息集合、发送波束和接收波束组合的空间参数信息集合。
在本实施例中，接收波束为无需进行指示的接收端的波束，或者发送端通过当前参考信号和天线端口的QCL与接收端的反馈报告的参考信号(或基准参考信号)和天线端口的QCL指示下的接收端的波束资源。
可选地，分组后的集合可以通过上行共享信道(Uplink Shared Channel，简称为PUSCH)进行承载，接收端可以通过显式空间参数或者隐式的波束分组的反馈方法，将波束之间的信道相关特性反馈给发送端，分组后的集合的报告格式组合如下：
方案1，包括N个分组，每个分组内包括一个分组序号，一个或多个发送波束序号，反馈发送波束中最佳波束的信道状态信息；其中每个分组内部的发送波束的个数可以不同，报告格式：{分组序号,{发送波束序号,…,发送波束序号},最佳波束的信道状态信息}，具体如表1：
表1
Figure PCTCN2017111771-appb-000001
Figure PCTCN2017111771-appb-000002
方案2，包括N个分组，每个分组内包括一个接收波束序号(或者接收波束的虚拟序号，准接收波束序号)；每个接收波束都反馈K个发送波束，而接收波束的个数为M个，报告格式：
{{发送波束序号,信道状态信息},…,{发送波束序号,信道状态信息}}…，其中，上述报告格式包含K个{发送波束序号,信道状态信息}，如表2：
表2
Figure PCTCN2017111771-appb-000003
方案3，报告格式：{发送波束序号,信道状态信息,分组序号},…；其中，分组序号可以通过时域，频域或者码域来区分，将K个发送波束划分到一个分组的准则为K个发送波束共同对应一个接收波束或一种波束赋形的实现模式，分组序号从0开始依次进行递增排序。如表3：
表3
Figure PCTCN2017111771-appb-000004
在方案3分组的基础上，根据分组是否对应相同TXRU或者相同的天线面板，对于已有分组进行高一层的分组，并添加高一层的主分组序号，格式，如表4，即顶层分组的准则是将对应于相同的TXRU或者相同的天线面板的信息分成一组；而底层分组的准则是将对应于相同TXRU或者相同天线面板下的相同接收波束或者相同接收方式的信息分成一组，底层分组是顶层分组的一个子集。可选地，所有的分组序号可以通过隐式的形式进行体现，如，分组序号所涉及的分组信息所占用的时频资源的位置。
表4
Figure PCTCN2017111771-appb-000005
Figure PCTCN2017111771-appb-000006
可选地，允许更高层次的分组(大于等于3层)，特征是底层分组所包含信息是高层分组所述信息的一个子集。
方案4，报告格式：{发送波束序号,信道状态信息,空间参数信息集合},…；分组序号可以通过在用的射频资源进行区分，如表5：
表5
Figure PCTCN2017111771-appb-000007
在一个可选的实施例中，上述组信息为以下之一信息：分组序号；参考波束序号；参考QCL索引。
在一个可选的实施例中，上述接收端通过以下至少之一准则选取波束：最大化接收端信噪比；最大化接收端信干噪比；最大化接收信号强度；最大化接收信号质量。
在本实施例中，通过上述准则更加准确地对于波束进行选取。
在一个可选的实施例中，上述组信息相同的多个分组的信道特性和/或传输方案满足以下至少之一条件：传输方案相同；信道特性相同；信道特性准相同，其中，该信道特性准相同是指信道特性之间的差异在指定的范围或约束内，该范围或约束通过动态配置或预先设置确定。
在本实施例中，组信息相同可以为至少以下之一参数相同：接收信号功率、水平发送方位角、垂直发送方位角、水平接收方位角、垂直接收方位角、平均到达时间、簇到达时间、预定复用方式、TA参数、CP长度、空分复用方式和QCL关系。
在一个可选的实施例中，上述组信息通过以下方式之一传输：承载组信息的时频码资源；显示地输出组信息。
在一个可选的实施例中，每个分组还包括结束符，其中，上述结束符位于该分组的结束位置和/或上述集合的结束位置。
在一个可选的实施例中，上述结束符通过以下方式之一传输：承载组信息的时频码资源；限制采用周期或半周期反馈的接收端在每个周期内发送的分组和集合的个数为1；限制采用周期或半周期反馈的接收端在非周期触发下发送的分组和集合的个数为1；显式地输出 特定数值或非反馈信号有效范围的数值标示的结束符。
在一个可选的实施例中，上述空间参数信息集合包括至少以下之一：到达角；波瓣宽度；接收波束的最佳接收角度；子带信道估计；平均时延；空间相关系数；时域信道响应相关系数；频域信道响应相关系数。
在本实施例中，上述到达角可以包括水平到达角和垂直到达角；上述波瓣宽度是指在不大于最大波束增益下的特定衰减的波瓣宽度，如半功率波瓣宽度；上述接收波束的最佳接收角度可以包括水平角和垂直角；上述平均时延是指在相对时延下的加权平均值，如均方根时延；上述空间相关系数为两个波束对应下的预编码权重的相关值，或者波束空域增益图谱的相关值；上述时域信道响应相关系数或频域信道响应相关系数为两个波束对应下的时域或频域信道相应的相关值。
可选地，如表6所示的一种波束序号和信道状态信息的集合的报告格式组合，每个分组都具有一个分组序号，其中每个分组内具有固定的K个发送波束序号、空间参数信息集合和RSRP信息，其中，空间参数信息集合包括水平到达角，垂直到达角。空间参数信息集合中水平到达角和垂直到达角，可以通过到达角估计的办法获得，或者通过获得最大功率的接收波束的方向角进行表示。对于仅需要1D天线阵列的情况，无法获得的水平到达角或者垂直到达角可以默认配置为0。
表6
Figure PCTCN2017111771-appb-000008
可选地，表6a示出一种波束序号和信道状态信息的集合的报告格式组合格式的一实施例。高一级分组为接收波束集合分组，而低一级分组是以天线集合分组。可选的，天线集合分组是接收天线集合分组。可选的，低一级分组通过相同的分组序号(虚拟的天线集合分 组序号)来表示，在每个高一级中，隐式的添加来自那个天线面板/TXRU的信息。其中，在相同的接收波束集合下，所报告的不同的发送波束可以被用户同时接收。可选的，在不同天线集合和相同的接收波束集合下，所报告的不同的发送波束可以用于空分复用模式；在相同的天线集合和相同的接收波束集合下，所报告的不同的发送波束可能不能用于空分复用模式。在不同的接收波束集合下，所报告的不同的发送波束可能不可以被用户同时接收。相同接收波束集合分组和相同天线集合分组下的波束是准共址的。基站向用户配置一个基站端发送波束分组，分组内部的波束是不可以同时发送的，同时，同一个接收波束集合分组内部的元素需要来自不同的基站端发送波束分组。
表6a
Figure PCTCN2017111771-appb-000009
可选地，表6b示出了一种波束序号和信道状态信息的集合的报告格式组合格式的另一实施例。高一级分组为天线集合分组，而低一级分组是以接收波束集合分组或者接收侧空间参数。可选的，接收侧空间参数，可是接收端空间参数下的QCL ID或者空间参数量化值。其中，量化区域可以是面向不同UE配置不同的量化步进和量化范围。在不同的天线集合和相同的接收波束集合下，所报告的不同的发送波束可以被用户同时接收和用于空分复用模式。在相同的天线集合和相同的接收波束集合下，所报告的发送波束可能不可以用于空分复用模式，但是可以被用户同时接收。在不同的或者相同的用户天线分组和不同的接收波束集合下，所报告的发送波束可能不可以被用户同时接收。相同接收波束集合分组和相同天线集合分组下的波束是准共址的。基站向用户配置一个基站端发送波束分组，分组内部的波束是不可以同时发送的，同时，同一个接收波束集合分组内部的元素需要来自不同的基站端发送波束分组。
表6b
Figure PCTCN2017111771-appb-000010
Figure PCTCN2017111771-appb-000011
在一个可选的实施例中，接收端通过以下之一方式进行分组或设定组信息：在无参考波束情况下进行分组；基于参考波束进行分组；其中，发送端通过参考信号索引、QCL信息、虚拟小区序号或物理小区序号向接收端通知参考波束。
在本实施例中，在无参考波束情况下进行分组指的是仅基于当前测量的结果，即，将具有相同信道特性和/或传输方案的波束放入同一个分组；基于参考波束进行分组指的是接收端已知的参考波束或参考信号构成一个集合，将与其中任意参考波束或参考信号之一中具有相同信道特性和/或传输方案的波束放入同一个分组，或者共享相同的组信息；该组信息为相应的参考波束或参考波束所携带的参考信号的序号或索引。
在一个可选的实施例中，上述集合还包括：参考波束序号，其中，参考波束序号为以下至少之一：接收端反馈报告的波束序号，参考信号序号，天线端口，QCL假设序号，虚拟小区序号，物理小区序号。
在一个可选的实施例中，上述接收端在集合中通过对组信息进行映射的方式获取参考波束序号。
在本实施例中，上述进行映射的方法可以采用相同的函数或者特定的函数进行相应地映射，但是并不限于此。
在一个可选的实施例中，上述发送端对于Q个分组进行分组合并，生成R个分组，其中，R为整数，且1≤R≤Q。
在一个可选的实施例中，上述集合还包括在Q个分组中标示的T个分组，以及该T个分组的天线端口的数目，其中，T为整数，且1≤T≤Q。
在一个可选的实施例中，上述空间参数信息集合中的空间参数通过以下方式之一获取：根据接收的参考信号获取空间参数；根据参考波束对应的第一空间参数与接收的参考信号的第二空间参数的相对值获取空间参数。
在一个可选的实施例中，上述集合还包括如下之一信息：波束序号对应的波束之间的频域响应相位差；波束序号对应的波束之间的子带响应相位差。
在一个可选的实施例中，在接收端将波束序号和信道状态信息的集合发送到发送端之后，接收端向发送端发送集合的集合信息，其中，集合信息包括以下至少之一：每个分组所在的面板，共享面板的一个或多个分组，每个分组所在的天线端口，共享天线端口的一个或多个分组，可共享频域资源块的分组，可共享时域资源块的分组，每个分组中的最优波束。
在一个可选的实施例中，接收端接收发送端发送的参考信号之前，接收端接收发送端发送的集合的报告格式组合，其中，上述报告格式组合用于指示接收端发送集合的格式。
在本实施例中，在接收端接收到报告格式组合后，接收端可以依据该报告格式组合确定发送集合的格式，提高了数据的发送效率和接收端与发送端兼容性。
在一个可选的实施例中，接收端接收发送端发送集合的报告格式组合之后，接收端向发送端发送报告格式请求，其中，该报告格式请求用于指示发送端分配用于反馈的时频资源。
在本实施例中，当发送端接收并确认发送端发送的报告格式请求后，该发送端分配用于反馈的视频资源。
在一个可选的实施例中，上述报告格式组合可以包括以下至少之一信息：子带信道状态信息中可选的子带带宽，可选的集合的格式，集合中分组的个数或最大个数，可选的信道状态信息；可选的集合的分组准则，可选的波束序号和信道状态信息的分组序号的配置准则。
图3是根据本公开实施例的配置信息的反馈方法的流程图，如图3所示，该流程包括如下步骤：
步骤S302，接收端向发送端发送天线和波束的配置信息，其中，上述配置信息用于指示发送端对该发送端的天线或波束进行配置。
在本实施例中，通过向发送端发送天线和波束的配置信息，使得发送端快速配置天线和波束，实现对于发送端的天线和波束的快速配置。
在一个可选的实施例中，上述配置信息包括至少以下之一信息：天线面板个数；每个天线面板下的TXRU数目；多流的波束空间相关特性的门限；支持独立划分天线端口QCL；可配置子带信道状态信息中的可选子带带宽；可支持反馈空间的参数信息；支持基于参考波束进行波束序号和信道状态信息的反馈。
在本实施例中，天线面板可以为相干面板，但是并不限于此。
在一个可选的实施例中，上述天线面板为一个或者多个。
在一个可选的实施例中，如表7所示，为一种波束序号和信道状态信息的集合的报告格式组合。每个分组都具有一个分组序号，一个发送波束序号，一个空间参数信息集合，包括信道响应相关系数，和一个RSRP信息。其中分组序号可以通过一个表格或者一个函数映射为某一个参考波束或参考信号集合序号，即，分组序号等于参考波束或参考信号集合序号，进而表示分组与参考波束或参考信号具有相同或相似的信道特征或相同的传输模式。信道响应相关系数，是指两个波束对应下的时域或者频域信道相应的相关值。其中，信道 响应相关系数c通过以下公式计算得到：
Figure PCTCN2017111771-appb-000012
其中，Hmeas表示目标波束的信道响应，Href表示参考波束下的信道响应。
表7
Figure PCTCN2017111771-appb-000013
在一个可选的实施例中，如表8所示，为一种波束序号和信道状态信息的集合的报告格式组合，每个分组内包含一个分组序号，一个发送波束序号，一个空间参数信息集合，包括空间相关系数，和一个CQI信息。分组序号可以通过一个表格或者一个函数映射到某一个参考波束或参考信号集合序号，即分组序号等于参考波束或参考信号集合序号，进而表示分组与参考波束或参考信号具有相同或者相似的信道特征或者相同的传输模式。空间参数信息集合中空间相关系数表示为两个波束对应下的预编码权重的相关值，空间相关系数c通过以下公式计算得到：
Figure PCTCN2017111771-appb-000014
其中，Wmeas表示2D测量接收波束的天线权重矩阵，而Wref表示2D参考接收波束的天线权重矩阵。
表8
Figure PCTCN2017111771-appb-000015
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的 方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本公开各个实施例所述的方法。
实施例2
图4为根据本公开的可选实施例的混合预编码的收发机结构示意图，如图4所示，发送端和接收端配置多天线单元和多个射频通路。其中，每个射频通路与天线阵列单元相互连接(或部分连接)，每个天线单元拥有一个数字键控移相器。通过各个天线单元上的信号加载不同相移量的办法，高频段系统实现模拟端的波束赋形。具体而言，在混合波束赋形收发机中，存在多条射频信号流。每条信号流通过数字键控移相器加载天线权重矢量(Antenna Weight Vector简称为AWV)，从多天线单元发送到高频段物理传播信道；在接收端，由多天线单元所接收到的射频信号流被加权合并成单一信号流，经过接收端射频解调，接收机最终获得多条接收信号流，并被数字基带采样和接收。因此，混合预编码(或称为混合模拟数字波束赋型)收发机可以同时产生指向多个方向的射频波束。
图5为根据本公开可选实施例的发送端波束，接收端波束和传播信道的示意图，如图5所示，发送端和接收端执行波束扫描和信道估计。根据信道估计和接收波束的特征，接收端分别面向不同物理路径的多个波束分组。每个分组可以包括一个或多个收发波束，其中，TB表示发送波束，而RB表示接收波束。
图6为根据本公开可选实施例的波束扫描集合示意图(一)，如图6所示，发送端备选波束对应于波束相关的信道状态信息参考信号(Channel State Information–Reference Signal，简称为CSI-RS)端口或者时频码位置，或者发送波束序号发送参考信号。该发送波束序号与该资源具有映射关系。通过扫描发送端备选波束资源池62的发送波束，发送参考信号，接收端使用接收波束集合64的接收波束进行接收，并执行信道估计。
图7为根据本公开可选实施例的波束扫描集合示意图(二)，如图7所示，发送端备选波束资源池72向接收端接收波束集合74发送参考信号，发送端备选波束对应于波束相关的CSI-RS端口或者时频码位置，或者发送波束序号发送参考信号。上述的发送波束序号，与该资源具有映射关系。同时，存在一个参考波束和参考信号集合76，用于波束序号和信道状态信息的反馈，参考波束和参考信号集合76通过下行控制指示(Downlink Control Indicator，简称为DCI)，媒体接入控制-控制元素(Media Access Control-Control Element，简称为DCI MAC-CE)或无线资源控制(Radio Resource Control，简称为RRC)信令进行通知给导频接收端。通过扫描发送端备选波束资源池72的发送波束，发送参考信号，接收端使用接收波束集合74的接收波束进行接收，并执行信道估计。
实施例3
图8是根据本公开可选实施例的波束信息的反馈方法的流程图(一)，如图8所示，该流程如下：
步骤S802，发送端向接收端发送波束序号和信道状态信息集合的可选报告格式，其中，可选的报告格式组包括一个集合，该集合中每个元素对应一种特定的报告格式配置模式，如可选的子带反馈带宽和/或本公开可选实施例中记载的报告模式方案1至方案4。
步骤S804，发送端发送N个参考信号到接收端。
步骤S806，接收端进行信号处理，如信道估计和接收波束的调整等。
步骤S808，接收端根据信道估计的结果向发送端发送报告格式请求。
步骤S810，发送端确认报告格式请求，触发反馈并分配用于反馈的时频资源。
步骤S812，接收端将波束序号和信道状态信息的集合反馈给发送端。
图9是根据本公开可选实施例的波束信息的反馈方法的流程图(二)，如图9所示，该流程如下：
步骤S902，接收端向发送端发送天线和波束的配置和功能信息，其中，天线和波束的配置和功能信息包括至少以下之一信息：天线面板个数；每个天线面板下的TXRU数目；多流的波束空间相关特性的门限；支持独立划分天线端口QCL；可配置子带信道状态信息中的可选子带带宽；可支持反馈空间的参数信息；支持基于参考波束进行波束序号和信道状态信息的反馈。
步骤S904，发送端向接收端发送参考波束或参考信号集合信息。
步骤S906，发送端向接收端发送N个参考信号。
步骤S908，接收端进行信号处理，如信道估计和接收波束的调整等。
步骤S910，发送端触发反馈并发送分配的用于反馈的时频资源到接收端。
步骤S912，接收端将波束序号和信道状态信息的集合反馈给发送端，可选地，接收端根据默认的报告格式或通过高层MAC-CE或RRC配置的报告格式将波束序号和信道状态信息的集合反馈给发送端。
实施例4
在本实施例中还提供了一种波束信息的反馈装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图10是根据本公开实施例的波束信息的反馈装置的结构框图，如图10所示，该装置包括第一接收模块102，用于接收发送端发送的参考信号，其中，上述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，上述参考信号组为根据时频码资源对参考信号划分得到的参考信号组；获取模块104，用于根据参考信号获取波束序号和信道状态信息；第一发送模块106，用于将包含有波束序号和信道状态信息的集合发送到发送端。
在一个可选的实施例中，上述集合包括Q个分组，其中，Q为大于或等于1的整数；每个分组包括以下至少之一：波束序号、信道状态信息、组信息和空间参数信息集合。
在一个可选的实施例中，上述波束序号包括以下至少之一：发送波束序号和接收波束序号；上述信道状态信息包括以下至少之一：发送波束信道状态信息、接收波束信道状态信息、发送波束和接收波束组合的信道状态信息；上述空间参数信息集合包括以下至少之一：发送波束空间参数信息集合、接收波束空间参数信息集合、发送波束和接收波束组合的空间参数信息集合。
在一个可选的实施例中，图11是根据本公开可选实施例的波束信息的反馈装置的结构框图(一)，如图11所示，该装置除包括图10所示的所有模块外，还包括第二接收模块112，用于接收发送端发送的上述集合的报告格式组合，其中，报告格式组合用于指示接收端发送上述集合的格式。
在一个可选的实施例中，图12是根据本公开可选实施例的波束信息的反馈装置的结构框图(二)，如图12所示，该装置除包括图11所示的所有模块外，还包括第二发送模块122，用于向发送端发送报告格式请求，其中，报告格式请求用于指示发送端分配用于反馈的时频资源。
在本实施例中还提供了一种配置信息的反馈装置，图13是根据本公开实施例的配置信息的反馈装置的结构框图，如图13所示，该装置包括发送模块132，用于向发送端发送天线和波束的配置信息，其中，配置信息用于指示发送端对该发送端的天线或波束进行配。
在一个可选的实施例中，上述配置信息包括至少以下之一信息：天线面板个数；每个天线面板下的TXRU数目；多流的波束空间相关特性的门限；支持独立划分天线端口QCL；可配置子带信道状态信息中的可选子带带宽；可支持反馈空间的参数信息；支持基于参考波束进行波束序号和信道状态信息的反馈。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例5
在本实施例中还提供了一种接收端，该接收端用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。
上述接收端包括通信装置和处理器，其中，上述通信装置，用于接收发送端发送的参考信号，其中，上述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，参考信号组为根据时频码资源对参考信号划分得到的参考信号组；以及将包含有波束序号和信道状态信息的集合发送到发送端；上述处理器，用于根据参考信号获取集合。
在一个可选的实施例中，上述集合包括Q个分组，其中，Q为大于或等于1的整数；每个分组包括以下至少之一：波束序号、信道状态信息、组信息和空间参数信息集合
在本实施例中还提供了一种接收端，上述接收端包括通信装置，用于向发送端发送天线和波束的配置信息，其中，配置信息用于指示发送端对该发送端的天线或波束进行配置。
在一个可选的实施例中，上述配置信息包括至少以下之一信息：天线面板个数；每个天线面板下的TXRU数目；多流的波束空间相关特性的门限；支持独立划分天线端口QCL；可配置子带信道状态信息中的可选子带带宽；可支持反馈空间的参数信息；支持基于参考波束进行波束序号和信道状态信息的反馈。
本公开的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：S1，接收端接收发送端发送的参考信号，其中，参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，参考信号组为根据时频码资源对参考信号划分得到的参考信号组；S2，接收端根据参考信号获取波束序号和信道状态信息；S3，接收端将包含有波束序号和信道状态信息的集合发送到发送端。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：接收端通过以下至少之一准则选取波束：最大化接收端信噪比；最大化接收端信干噪比；最大化接收信号强度；最大化接收信号质量。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：组信息通过以下方式之一传输：承载组信息的时频码资源；显示地输出组信息。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：接收端通过以下之一方式进行分组或设定组信息：在无参考波束情况下进行分组；基于参考波束进行分组；其中，发送端通过参考信号索引、QCL信息、虚拟小区序号或物理小区序号向接收端通知参考波束。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：接收端在集合中通过对组信息进行映射的方式获取参考波束序号。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：发送端对于Q个分组进行分组合并，生成R个分组，其中，R为整数，且1≤R≤Q。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：空间参数信息集合中的空间参数通过以下方式之一获取：根据接收的参考信号获取空间参数；根据参考波束对应的第一空间参数与接收的参考信号的第二空间参数的相对值获取空间参数。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：接收端向发送端发送集合的集合信息，其中，集合信息包括以下至少之一：每个分组所在的面板，共享面板的一个或多个分组，每个分组所在的天线端口，共享天线端口的一个或多个分组，可共享频域资源块的分组，可共享时域资源块的分组，每个分组中的最优波束。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：接收端接收发送端发送的集合的报告格式组合，其中，报告格式组合用于指示接收端发送集合的格式。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：接收端向发送端发送 报告格式请求，其中，报告格式请求用于指示发送端分配用于反馈的时频资源。
本公开的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：接收端向发送端发送天线和波束的配置信息，其中，配置信息用于指示发送端对该发送端的天线或波束进行配置。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本公开的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本公开不限制于任何特定的硬件和软件结合。
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
工业实用性
本公开适用于通信领域，用以解决由于接收端无法根据发送端的反馈获知波束序号和信道状态信息，导致接收端无法对于波束之间的相关特性进行反馈，继而发送端无法根据接收端的相关特性进行准确和灵活的数据传输，降低系统的分集和复用增益的问题，达到发送端可以根据接收端的相关特性进行准确和灵活的数据传输，提高系统的分集和复用增益的效果。

Claims (41)

  1. 一种波束信息的反馈方法，包括：
    接收端接收发送端发送的参考信号，其中，所述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，所述参考信号组为根据时频码资源对所述参考信号划分得到的参考信号组；
    所述接收端根据所述参考信号获取波束序号和信道状态信息；
    所述接收端将包含有所述波束序号和所述信道状态信息的集合发送到所述发送端。
  2. 根据权利要求1所述的方法，其中，所述集合包括Q个分组，其中，Q为大于或等于1的整数；每个所述分组包括以下至少之一：所述波束序号、所述信道状态信息、组信息和空间参数信息集合。
  3. 根据权利要求2所述的方法，其中，所述波束序号包括以下至少之一：发送波束序号和接收波束序号；所述信道状态信息包括以下至少之一：发送波束信道状态信息、接收波束信道状态信息、发送波束和接收波束组合的信道状态信息；所述空间参数信息集合包括以下至少之一：发送波束空间参数信息集合、接收波束空间参数信息集合、发送波束和接收波束组合的空间参数信息集合。
  4. 根据权利要求2所述的方法，其中，所述组信息为以下之一信息：分组序号；参考波束序号；参考准共址QCL索引。
  5. 根据权利要求2所述的方法，其中，所述接收端通过以下至少之一准则选取所述波束：最大化接收端信噪比；最大化接收端信干噪比；最大化接收信号强度；最大化接收信号质量。
  6. 根据权利要求2所述的方法，其中，所述组信息相同的多个所述分组的信道特性和/或传输方案满足以下至少之一条件：传输方案相同；信道特性相同；信道特性准相同，其中，所述信道特性准相同是指所述信道特性之间的差异在指定的范围或约束内，该范围或约束通过动态配置或预先设置确定。
  7. 根据权利要求4所述的方法，其中，所述组信息通过以下方式之一传输：
    承载所述组信息的时频码资源；
    显示地输出所述组信息。
  8. 根据权利要求2所述的方法，其中，每个所述分组还包括结束符，其中，所述结束符位于该分组的结束位置和/或所述集合的结束位置。
  9. 根据权利要求8所述的方法，其中，所述结束符通过以下方式之一传输：
    承载所述组信息的时频码资源；
    限制采用周期或半周期反馈的所述接收端在每个周期内发送的所述分组和所述集合的个数为1；
    限制采用周期或半周期反馈的所述接收端在非周期触发下发送的所述分组和所述集合的个数为1；
    显式地输出特定数值或非反馈信号有效范围的数值标示的所述结束符。
  10. 根据权利要求2所述的方法，其中，所述空间参数信息集合包括至少以下之一：到达角；波瓣宽度；接收波束的最佳接收角度；子带信道估计；平均时延；空间相关系数；时域信道响应相关系数；频域信道响应相关系数。
  11. 根据权利要求2所述的方法，其中，所述接收端通过以下之一方式进行分组或设定所述组信息：
    在无参考波束情况下进行分组；
    基于参考波束进行分组；
    其中，所述发送端通过参考信号索引、QCL信息、虚拟小区序号或物理小区序号向所述接收端通知所述参考波束。
  12. 根据权利要求11所述的方法，其中，所述集合还包括：参考波束序号，其中，所述参考波束序号为以下至少之一：所述接收端反馈报告的波束序号，参考信号序号，天线端口，QCL假设序号，虚拟小区序号，物理小区序号。
  13. 根据权利要求12所述的方法，其中，所述接收端在所述集合中通过对所述组信息进行映射的方式获取所述参考波束序号。
  14. 根据权利要求2所述的方法，其中，所述发送端对于Q个所述分组进行分组合并，生成R个分组，其中，R为整数，且1≤R≤Q。
  15. 根据权利要求2所述的方法，其中，在所述Q个分组下第r个分组包含Vr个子分组，其中，Vr是大于或等于1的整数，r为整数，且1≤r≤Q；
    其中，所述Q个分组称为第一类分组；所述Vr个子分组称为第二类分组。
  16. 根据权利要求15所述的方法，其中，所述第一类分组的分组准则与所述第二类分组的分组准则不同。
  17. 根据权利要求15所述的方法，其中，
    所述第一类分组下的每个分组内的元素所指示的波束是准共址；或者，
    所述第二类分组下的每个分组内的元素所指示的波束是准共址；或者，
    属于所述第一类分组下的相同分组，并且属于所述第二类分组下的相同分组的元素所指示的波束是准共址。
  18. 根据权利要求15所述的方法，其中，
    属于所述第一类分组下的不同分组，并且属于所述第二类分组下的相同分组的元素所指示的波束用于空分复用；或者，
    属于所述第一类分组下的不同分组，并且属于所述第二类分组下的不同分组的元素所指示的波束不能用于空分复用但是能够同时接收和/或同时发送；或者，
    属于所述第一类分组下的相同分组，并且属于所述第二类分组下的不同分组的元素所指示的波束用于空分复用；或者
    属于所述第一类分组下的相同分组，并且属于所述第二类分组下的相同分组的元素所 指示的波束不能用于空分复用但是能够同时接收和/或同时发送。
  19. 根据权利要求2或17或18所述的方法，其中，
    所述元素来自第A类分组下的不同分组；
    所述第A类分组包含G个分组，是所述发送端配置给所述接收端的；其中G是大于或等于1的整数。
  20. 根据权利要求19所述的方法，其中，
    在所述第A类分组下，同一个分组内元素所指示的波束是不能同时发送的；或者，不同分组内元素所指示的波束能够同时发送。
  21. 根据权利要求2所述的方法，其中，所述集合还包括：在Q个所述分组中标示的T个分组，以及该T个分组的天线端口的数目，其中，T为整数，且1≤T≤Q。
  22. 根据权利要求2或10所述的方法，其中，所述空间参数信息集合中的空间参数通过以下方式之一获取：
    根据接收的所述参考信号获取所述空间参数；
    根据参考波束对应的第一空间参数与接收的所述参考信号的第二空间参数的相对值获取所述空间参数。
  23. 根据权利要求2所述的方法，其中，所述集合还包括如下之一信息：所述波束序号对应的波束之间的频域响应相位差；所述波束序号对应的波束之间的子带响应相位差。
  24. 根据权利要求23所述的方法，其中，在所述接收端将所述波束序号和所述信道状态信息的集合发送到所述发送端之后，所述方法还包括：所述接收端向所述发送端发送所述集合的集合信息，其中，所述集合信息包括以下至少之一：每个所述分组所在的面板，共享面板的一个或多个所述分组，每个所述分组所在的天线端口，共享天线端口的一个或多个所述分组，可共享频域资源块的所述分组，可共享时域资源块的所述分组，每个所述分组中的最优波束。
  25. 根据权利要求1所述的方法，其中，接收端接收发送端发送的参考信号之前，所述方法还包括：所述接收端接收所述发送端发送的所述集合的报告格式组合，其中，所述报告格式组合用于指示所述接收端发送所述集合的格式。
  26. 根据权利要求25所述的方法，其中，所述接收端接收所述发送端发送所述集合的报告格式组合之后，所述方法还包括：所述接收端向所述发送端发送报告格式请求，其中，所述报告格式请求用于指示所述发送端分配用于反馈的时频资源。
  27. 根据权利要求25所述的方法，其中，所述报告格式组合包括以下至少之一信息：子带信道状态信息中可选的子带带宽，可选的所述集合的格式，所述集合中分组的个数或最大个数，可选的所述信道状态信息；可选的所述集合的分组准则，可选的所述波束序号和所述信道状态信息的分组序号的配置准则。
  28. 一种配置信息的反馈方法，包括：
    接收端向发送端发送天线和波束的配置信息，其中，所述配置信息用于指示发送端对 该发送端的天线或波束进行配置。
  29. 根据权利要求28所述的方法，其中，所述配置信息包括至少以下之一信息：天线面板个数；每个天线面板下的收发机单元TXRU数目；多流的波束空间相关特性的门限；支持独立划分天线端口QCL；可配置子带信道状态信息中的可选子带带宽；可支持反馈空间的参数信息；支持基于参考波束进行波束序号和信道状态信息的反馈。
  30. 根据权利要求29所述的方法，其中，所述天线面板为一个或者多个。
  31. 一种波束信息的反馈装置，包括：
    第一接收模块，设置为接收发送端发送的参考信号，其中，所述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，所述参考信号组为根据时频码资源对所述参考信号划分得到的参考信号组；
    获取模块，设置为根据所述参考信号获取波束序号和信道状态信息；
    第一发送模块，设置为将包含有所述波束序号和所述信道状态信息的集合发送到所述发送端。
  32. 根据权利要求31所述的装置，其中，所述集合包括Q个分组，其中，Q为大于或等于1的整数；每个所述分组包括以下至少之一：所述波束序号、所述信道状态信息、组信息和空间参数信息集合。
  33. 根据权利要求32所述的装置，其中，所述波束序号包括以下至少之一：发送波束序号和接收波束序号；所述信道状态信息包括以下至少之一：发送波束信道状态信息、接收波束信道状态信息、发送波束和接收波束组合的信道状态信息；所述空间参数信息集合包括以下至少之一：发送波束空间参数信息集合、接收波束空间参数信息集合、发送波束和接收波束组合的空间参数信息集合。
  34. 根据权利要求31所述的装置，其中，所述装置还包括：第二接收模块，设置为接收所述发送端发送的所述集合的报告格式组合，其中，所述报告格式组合用于指示所述接收端发送所述集合的格式。
  35. 根据权利要求34所述的装置，其中，所述装置还包括第二发送模块，设置为向所述发送端发送报告格式请求，其中，所述报告格式请求用于指示所述发送端分配用于反馈的时频资源。
  36. 一种配置信息的反馈装置，包括：
    发送模块，设置为向发送端发送天线和波束的配置信息，其中，所述配置信息用于指示发送端对该发送端的天线或波束进行配置。
  37. 根据权利要求36所述的装置，其中，所述配置信息包括至少以下之一信息：天线面板个数；每个天线面板下的TXRU数目；多流的波束空间相关特性的门限；支持独立划分天线端口QCL；可配置子带信道状态信息中的可选子带带宽；可支持反馈空间的参数信息；支持基于参考波束进行波束序号和信道状态信息的反馈。
  38. 一种接收端，包括通信装置和处理器，其中，
    所述通信装置，设置为接收发送端发送的参考信号，其中，所述参考信号携带在一个或多个波束上，或每个参考信号组携带在同一个波束上，所述参考信号组为根据时频码资源对所述参考信号划分得到的参考信号组；以及将包含有波束序号和信道状态信息的集合发送到所述发送端；
    所述处理器，设置为根据所述参考信号获取所述集合。
  39. 根据权利要求38所述的接收端，其中，所述集合包括Q个分组，其中，Q为大于或等于1的整数；每个所述分组包括以下至少之一：所述波束序号、所述信道状态信息、组信息和空间参数信息集合。
  40. 一种接收端，包括通信装置，设置为向发送端发送天线和波束的配置信息，其中，所述配置信息用于指示发送端对该发送端的天线或波束进行配置。
  41. 根据权利要求40所述的接收端，其中，所述配置信息包括至少以下之一信息：天线面板个数；每个天线面板下的TXRU数目；多流的波束空间相关特性的门限；支持独立划分天线端口QCL；可配置子带信道状态信息中的可选子带带宽；可支持反馈空间的参数信息；支持基于参考波束进行波束序号和信道状态信息的反馈。
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