WO2018059005A1 - 一种大规模天线波束传输方法及基站、终端 - Google Patents

一种大规模天线波束传输方法及基站、终端 Download PDF

Info

Publication number
WO2018059005A1
WO2018059005A1 PCT/CN2017/087809 CN2017087809W WO2018059005A1 WO 2018059005 A1 WO2018059005 A1 WO 2018059005A1 CN 2017087809 W CN2017087809 W CN 2017087809W WO 2018059005 A1 WO2018059005 A1 WO 2018059005A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
signal
downlink
csi
base station
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/087809
Other languages
English (en)
French (fr)
Inventor
高秋彬
陈润华
拉盖施
李传军
李辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
Original Assignee
China Academy of Telecommunications Technology CATT
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.)
Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Publication of WO2018059005A1 publication Critical patent/WO2018059005A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • H04B7/0413—MIMO systems
    • 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
    • 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
    • H04B7/0617—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 for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0675—Space-time coding characterised by the signaling
    • H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a large-scale antenna beam transmission method, a base station, and a terminal.
  • a large-scale antenna technology is introduced in the mobile communication system.
  • fully digital large-scale antennas can have up to 128/256/512 antenna elements and up to 128/256/512 transceiver units, one for each antenna element.
  • the terminal measures channel state information and feeds back by transmitting pilot signals up to 128/256/512 antenna ports.
  • an antenna array of up to 32/64 antenna elements can also be configured.
  • the beamforming correspondence between the base station and the terminal is generally determined through a training process, and the approximate process is as follows:
  • the base station transmits a downlink beam training signal.
  • the base station has multiple candidate downlink transmit beams, and each candidate downlink transmit beam corresponds to a set of beamforming weights.
  • the base station can transmit one beam training signal for each candidate downlink transmit beam, that is, a beam training signal of each candidate downlink transmit beam.
  • the beamforming weight corresponding to the beam is shaped and then sent.
  • the terminal receives the downlink beam training signal sent by the base station, and selects the recommended downlink transmission beam by measuring the beam training signal. For example, the terminal may select the candidate downlink transmit beam with the strongest received power of the training signal as the recommended beam.
  • the terminal determines a corresponding downlink reception beam.
  • the terminal reports the information about the recommended downlink transmit beam to the base station.
  • the related information includes the identifier of the recommended downlink transmit beam (for example, the number of the downlink transmit beam), the downlink transmit beam training signal strength information received by the terminal (for example, the received signal power level), and the like.
  • the base station determines the selected downlink transmit beam according to the related information of the downlink transmit beam reported by the terminal.
  • the above process can be used to determine one or more downlink transmit beams for a terminal, and determine a downlink receive beam on the terminal side, and in the data transmission process, the base station selects one downlink from the determined multiple downlink transmit beams.
  • the beam transmits a signal to the terminal and is determined to be unchangeable after the selected downlink beam.
  • the problem in the above process is that after determining the downlink transmission beams corresponding to the terminal, each time the base station sends data to the terminal, the base station can only select one of the multiple downlink transmission beams to transmit the signal, and select the downlink transmission.
  • the beam is unchangeable, which can cause serious performance bottlenecks when reliability is required to be transmitted, and the reliability is not very high.
  • the large-scale antenna beam transmission method in the prior art has low reliability and low transmission efficiency. technical problem.
  • the embodiments of the present invention provide a large-scale antenna beam transmission method, a base station, and a terminal, which are used to improve transmission efficiency and enhance reliability in large-scale antenna beam transmission.
  • an embodiment of the present invention provides a method for transmitting a large-scale antenna beam, including:
  • the base station Determining, by the base station, a first beamforming manner corresponding to a signal of a data channel between the terminal, where the first beamforming manner is by using the primary downlink transmission beam and/or the at least one secondary downlink beam Beamforming the signal of the data channel;
  • the base station carries the indication information of the first beamforming manner in a control signal, and sends the information to the terminal through a control channel, so that the terminal receives the base station according to the first beamforming manner.
  • the signal transmitted by the data channel is not limited to the data channel.
  • the base station determines, from the multiple downlink transmit beams, a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal, including:
  • the base station Determining, by the base station, signal strength information of the multiple uplink receiving beams according to the received data signal and/or the control signal of the terminal; the base station determining, according to the determined signal strength information of the multiple uplink receiving beams, a primary downlink transmit beam and at least one secondary downlink transmit beam of the terminal; or
  • the base station selects at least one downlink transmission beam from the plurality of downlink transmission beams as a downlink channel state information reference signal CSI-RS transmission beam, and sends the CSI-RS to the terminal by using the downlink CSI-RS transmission beam. signal;
  • the base station receives channel state information that is determined by the terminal for the CSI-RS signal, and determines, according to the channel state information, a primary downlink transmit beam and at least one secondary downlink send for the terminal.
  • Beams including:
  • the CSI-RS transmission beam is used as the primary downlink beam, and one or more downlink CSI-RSs other than the downlink CSI-RS transmission beam corresponding to the CSI-RS signal with the best channel quality in the channel state information are sent.
  • a beam as the at least one auxiliary downlink beam.
  • the base station carries the first beamforming manner in a control signal, and after performing beamforming on the control signal by using the second beamforming manner, sending, by using the control channel, Terminals, including:
  • the base station configures a subset of N control resources for the terminal, where one control resource subset includes multiple resource units for control channel transmission, and one control resource subset is associated with one downlink transmission beam;
  • the terminal detects that there is an effective control channel in the N control resource subsets acquiring the first beamforming manner in the control signal, where the effective control channel refers to that the control signal of the control channel is sent to The terminal is sent to the terminal group where the terminal is located.
  • the base station carries the indication information of the first beamforming manner in the control signal, and before sending the control channel to the terminal, the method further includes:
  • the base station carries the indication information of the first beamforming mode in the control signal, and sends the information to the terminal through the control channel, including:
  • the base station carries the indication information of the first beamforming manner in a control signal, and after performing beamforming on the control signal by using the second beamforming manner, sending, by using the control channel, the terminal.
  • the base station updates the first beamforming manner according to the channel state information corresponding to the primary downlink transmit beam and the channel state information corresponding to the at least one secondary downlink transmit beam that are sent by the terminal; or
  • the base station When the base station continues to receive the hybrid automatic repeat request (HARQ) non-acknowledgement NACK feedback sent by the terminal or does not receive feedback from the terminal, according to the primary downlink transmission beam and the at least one secondary downlink transmission beam, Updating the first beamforming mode.
  • HARQ hybrid automatic repeat request
  • the CSI-RS signal configuration information sent by the base station to the terminal where the CSI-RS signal configuration information includes configuration information of a CSI-RS signal downlink transmission beam, and the CSI-RS signal downlink transmission beam One of the primary downlink transmission beam and the at least one secondary downlink transmission beam;
  • the base station sends a CSI-RS signal by using the CSI-RS signal downlink transmission beam;
  • the base station receives channel state information that is measured by the terminal based on the CSI-RS signal.
  • the base station sends CSI process configuration information to the terminal, where the CSI process configuration information includes association indication information of one or more CSI-RS signals;
  • the base station receives channel state information measured by the terminal according to one or more CSI-RS signals associated with a CSI process in the terminal.
  • the first beamforming manner includes some or all of the following:
  • the second beamforming manner includes some or all of the following:
  • Performing beamforming on the control signal of the control channel through the primary downlink transmission beam, and performing beam-pair control through the auxiliary downlink transmission The control signal of the channel is beamformed, and the control signal of the control channel is subjected to diversity beamforming through the primary downlink transmit beam and the secondary downlink beam.
  • an embodiment of the present invention provides a method for transmitting a large-scale antenna beam, including:
  • the terminal receives the configuration information of the primary downlink transmission beam and the configuration information of the at least one secondary downlink transmission beam, and determines the primary downlink transmission beam and the at least one secondary downlink transmission beam;
  • a control signal sent by the base station includes a first beamforming manner corresponding to a signal of a data channel between the base station and the terminal, where the first beamforming manner is Beamforming a signal of the data channel by using the primary downlink transmit beam and/or the at least one secondary downlink beam;
  • the terminal receives the control signal sent by the base station, including:
  • the terminal Receiving, by the terminal, the control signal that is formed by the second beamforming mode beam sent by the base station by using a control channel with the terminal, where the second beamforming mode is sent by using the primary downlink A beam and/or the at least one secondary downlink beam beamforms a control signal of the control channel.
  • the terminal receives the CSI-RS signal configuration information sent by the base station, where the CSI-RS signal configuration information includes configuration information of a CSI-RS signal downlink transmission beam, and the CSI-RS signal downlink transmission beam One of the primary downlink transmission beam and the at least one secondary downlink transmission beam;
  • the terminal determines a CSI-RS downlink receiving beam corresponding to the downlink transmission beam of the CSI-RS signal, and receives a CSI-RS signal sent by the base station according to the CSI-RS downlink receiving beam;
  • the terminal obtains a channel estimation value according to the received CSI-RS signal, and obtains channel state information according to the channel estimation value, and then sends the channel state information to the base station.
  • the method further includes:
  • CSI process configuration information sent by the base station, where the CSI process configuration information includes association indication information of one or more CSI-RS signals;
  • the terminal obtains a channel estimation value according to the received CSI-RS signal, and obtains channel state information according to the channel estimation value, and then sends the channel state information to the base station, including:
  • the terminal determines channel state information according to channel estimation values of one or more CSI-RS signals associated with each process and feeds back to the base station.
  • the terminal determines channel state information and feeds back to the base station according to channel estimation values of one or more CSI-RS signals associated with each process, including:
  • the terminal determines channel state information corresponding to each CSI-RS signal according to channel estimation values of each CSI-RS signal associated with each process, and feeds back channel state information corresponding to each CSI-RS signal to the base station. ;or
  • the terminal selects one or more CSI-RS signals according to channel estimation values of each CSI-RS signal associated with each process, and respectively determines and feeds back channel state information corresponding to each selected CSI-RS signal, And identifying the selected identification information of each CSI-RS signal to the base station.
  • the terminal receives, according to the first beamforming manner, a signal that the base station sends the data channel.
  • Number including:
  • the terminal receives the downlink receive beam corresponding to the primary downlink transmit beam;
  • the terminal uses the downlink receiving beam corresponding to the auxiliary downlink transmission beam to receive;
  • the terminal receives the downlink downlink beam corresponding to the primary downlink transmission beam and the secondary downlink transmission beam respectively.
  • the terminal receives the downlink downlink beam corresponding to the primary downlink transmission beam and the secondary downlink transmission beam respectively.
  • an embodiment of the present invention provides a method for transmitting a large-scale antenna beam, including:
  • the base station configures a subset of N control resources for the terminal, where the subset of control resources includes a plurality of resource units for control channel transmission;
  • the base station sends the configuration information of the N control resource subsets to the terminal, where the configuration information includes indication information of a downlink transmission beam corresponding to each control resource subset;
  • the base station sends a control signal to the terminal in at least one control resource subset of the N control resource subsets.
  • the sending, by the base station, the control signal to the terminal in the one or more control resource subsets in the N control resource subsets including:
  • the base station sends the control signal to the terminal in a downlink transmission beam corresponding to at least one control resource subset in the N control resource subsets.
  • an embodiment of the present invention provides a method for transmitting a large-scale antenna beam, including:
  • the terminal receives the configuration information of the N control resource subsets sent by the base station, where the one control resource subset includes multiple resource units for control channel transmission, and the configuration information includes downlink transmission corresponding to each control resource subset.
  • Indicator information of the beam
  • the terminal receives a control signal sent by the base station through at least one control resource subset in the N control resource subsets.
  • the terminal Determining, by the terminal, the downlink receiving beam that receives the subset of the control resources according to the indication information of the downlink transmission beam corresponding to the at least one control resource subset;
  • the terminal receives a control signal in the subset of control resources by using the downlink receive beam.
  • an embodiment of the present invention provides a base station, including:
  • a processing unit configured to determine, from a plurality of downlink transmit beams, a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal; and determine a first beamforming manner corresponding to a signal of the data channel between the terminals, where The first beamforming manner is to beamform the signal of the data channel by using the primary downlink transmission beam and/or the at least one secondary downlink beam;
  • a transceiver unit configured to send configuration information of the primary downlink transmit beam and configuration information of the at least one secondary downlink transmit beam to the terminal; and carry the indication information of the first beamforming manner into a control signal Transmitting to the terminal through a control channel, so that the terminal is connected according to the first beamforming manner in the control signal Receiving a signal transmitted by the base station through the data channel.
  • the processing unit is configured to: when the primary downlink transmit beam and the at least one secondary downlink transmit beam are determined by using the downlink transmit beam and the at least one secondary downlink transmit beam, The unit sends a training signal to the terminal, so that the terminal determines signal strength information of the multiple downlink transmit beams and sends the signal strength information to the base station; according to the signals of the multiple downlink transmit beams received by the transceiver unit Strength information, determining a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal from the plurality of downlink transmit beams; or
  • the processing unit receives the channel state information determined by the terminal for the CSI-RS signal by using the transceiver unit, and determines a primary downlink transmit beam for the terminal according to the channel state information. And at least one auxiliary downlink transmit beam, specifically for:
  • the downlink CSI-RS transmission beam is used as the primary downlink beam, and one or more downlink CSIs other than the downlink CSI-RS transmission beam corresponding to the CSI-RS signal with the best channel quality in the channel state information are used.
  • the RS transmits a beam as the at least one secondary downlink beam.
  • the transceiver unit carries the indication information of the first beamforming manner in a control signal, and when the control channel is sent to the terminal, specifically used to:
  • control resource subset includes multiple resource units for control channel transmission, and one control resource subset is associated with one downlink transmission beam;
  • processing unit is further configured to:
  • the transceiver unit And transmitting, by the transceiver unit, the indication information of the first beamforming manner to a control signal, and before transmitting to the terminal by using a control channel, determining a corresponding to a control signal of a control channel between the terminal a second beamforming manner, wherein the second beamforming mode is to pass the primary downlink transmission beam and/or the at least one secondary downlink wave Beams beamforming a control signal of the control channel;
  • the transceiver unit carries the indication information of the first beamforming mode in the control signal, and when the control channel is sent to the terminal, specifically used to:
  • the indication information of the first beamforming manner is carried in the control signal, and the control signal is beamformed by the second beamforming manner, and then sent to the terminal through the control channel.
  • processing unit is further configured to:
  • the transceiver unit And transmitting, by the transceiver unit, the hybrid automatic retransmission request, the HARQ non-acknowledgment NACK feedback sent by the terminal, or receiving the feedback of the terminal, according to the primary downlink transmission beam and the at least one secondary downlink transmission.
  • the CSI-RS signal configuration information where a downlink transmission beam of the RS signal is one of the primary downlink transmission beam and the at least one secondary downlink transmission beam; transmitting a CSI-RS signal by using the CSI-RS signal downlink transmission beam; and receiving the terminal based on the CSI - Channel signal information obtained by measuring the RS signal.
  • the transceiver unit is further configured to: send CSI process configuration information to the terminal, where the CSI process configuration information includes association indication information of one or more CSI-RS signals; and receiving the terminal according to The measured channel state information is obtained by one or more CSI-RS signals associated with the CSI process in the terminal.
  • the first beamforming manner includes some or all of the following:
  • the second beamforming manner includes some or all of the following:
  • the control signal of the control channel is beamformed by the primary downlink transmission beam
  • the control signal of the control channel is beamformed by the secondary downlink transmission beam
  • the control signal of the control channel is diversityd by the primary downlink transmission beam and the secondary downlink beam. Beamforming.
  • an embodiment of the present invention provides a terminal, including:
  • a transceiver unit configured to receive configuration information of a primary downlink transmit beam and configuration information of at least one secondary downlink transmit beam sent by the base station, and receive a control signal sent by the base station, where the control signal includes the base station and the terminal a first beamforming manner corresponding to the signal of the data channel, wherein the first beamforming manner is to beamform the signal of the data channel by using the primary downlink transmission beam and/or the at least one secondary downlink beam ;
  • a processing unit configured to determine, according to the configuration information of the primary downlink transmit beam and the configuration information of the at least one secondary downlink transmit beam that are sent by the base transceiver, the primary downlink transmit beam and the at least one secondary downlink transmit beam; Receiving, by the transceiver unit, a signal sent by the base station through the data channel according to the first beamforming manner.
  • the transceiver unit when the transceiver unit receives the control signal sent by the base station, specifically:
  • Receiving, by the base station, the control signal that is beamformed by the second beamforming mode, which is sent by using a control channel between the base station, and the second beamforming manner is to pass the primary downlink transmission beam and/or the Said at least one auxiliary down The beam beamforms the control signal of the control channel.
  • the transceiver unit is further configured to: receive CSI-RS signal configuration information sent by the base station, where the CSI-RS signal configuration information includes configuration information of a CSI-RS signal downlink transmission beam, where the CSI - the RS signal downlink transmission beam is one of the primary downlink transmission beam and the at least one secondary downlink transmission beam;
  • the processing unit is further configured to: determine a CSI-RS downlink receive beam corresponding to the downlink transmit beam of the CSI-RS signal, and receive, by using the CSI-RS downlink receive beam, the base station to send, according to the CSI-RS downlink receive beam
  • the CSI-RS signal is obtained according to the CSI-RS signal received by the transceiver unit, and the channel state information is obtained according to the channel estimation value, and then sent to the base station by using the transceiver unit.
  • the transceiver unit is further configured to: receive CSI process configuration information sent by the base station, where the CSI process configuration information includes association indication information of one or more CSI-RS signals;
  • the processing unit obtains a channel estimation value according to the CSI-RS signal received by the transceiver unit, and obtains channel state information according to the channel estimation value, and then sends the channel state information to the base station by using the transceiver unit, where the processing unit is specifically configured to:
  • the CSI-RS signal received by the transceiver unit obtains channel estimation values of one or more CSI-RS signals associated with each process; and channel estimation values of one or more CSI-RS signals associated with each process, Channel state information is determined and fed back to the base station by the transceiver unit.
  • the processing unit determines the channel state information according to the channel estimation value of the one or more CSI-RS signals associated with each process, and when the channel state information is fed back to the base station by using the transceiver unit, specifically:
  • the processing unit when the processing unit receives the signal that the base station sends the data channel by using the transceiver unit according to the first beamforming manner, the processing unit is specifically configured to:
  • the downlink receiving beam corresponding to the primary downlink transmission beam is received by the transceiver unit;
  • the first beamforming mode is that the data channel uses the auxiliary downlink transmission beam transmission
  • the downlink receiving beam corresponding to the auxiliary downlink transmission beam is received by the transceiver unit
  • the first beamforming mode is that the data channel uses the primary downlink transmitting beam and the secondary downlink beam to perform space division multiplexing transmission
  • the downlink receiving beam corresponding to the primary downlink transmitting beam and the secondary downlink transmitting beam respectively passes through the transceiver unit.
  • the first beamforming mode is that the data channel uses the primary downlink transmission beam and the secondary downlink beam for diversity transmission
  • the downlink receiving beam corresponding to the primary downlink transmission beam and the secondary downlink transmission beam respectively is received by the transceiver unit.
  • an embodiment of the present invention provides a base station, including:
  • a processing unit configured to configure, by the terminal, a subset of N control resources, where the subset of control resources includes multiple resource units for control channel transmission;
  • a transceiver unit configured to send configuration information of the N control resource subsets to the terminal, where the configuration information includes indication information of a downlink transmission beam corresponding to each control resource subset; and the N controls Within the subset of at least one control resource in the subset of resources, a control signal is sent to the terminal.
  • the transceiver unit when transmitting a control signal to the terminal in the at least one control resource subset of the N control resource subsets, is specifically configured to: in the N control resource subsets And transmitting, by the at least one downlink transmit beam corresponding to the subset of control resources, the control signal to the terminal.
  • an embodiment of the present invention provides a terminal, including:
  • the transceiver unit is configured to receive configuration information of the N control resource subsets sent by the base station, where the control resource subset includes multiple resource units for control channel transmission, where the configuration information includes each control resource subset Corresponding downlink transmit beam indication information; receiving, by the base station, a control signal sent in at least one control resource subset in the N control resource subsets.
  • the terminal further includes a processing unit, where the processing unit is configured to: determine, according to the indication information of the downlink transmit beam corresponding to the at least one control resource subset, the downlink receive beam that receives the subset of the control resources;
  • the transceiver unit is specifically configured to: use the processing unit to determine the downlink receiving beam in the Control signals are received within a subset of control resources.
  • an embodiment of the present invention provides a base station, where the base station includes a memory, a processor, and a transceiver;
  • the memory is for storing a computer readable program
  • the processor performs the method performed by the base station in a large-scale antenna beam transmission method provided by the first aspect by running a program in the memory;
  • the transceiver is used to receive and transmit data under the control of the processor.
  • a terminal of the embodiment of the present invention includes a memory, a processor, and a transceiver;
  • the memory is for storing a computer readable program
  • the processor completes a method performed by the terminal in a large-scale antenna beam transmission method provided by the second aspect by running a program in the memory;
  • the transceiver is used to receive and transmit data under the control of the processor.
  • a base station includes a memory, a processor, and a transceiver, where
  • the memory is for storing a computer readable program
  • the processor completes a method performed by the base station in a large-scale antenna beam transmission method provided by the third aspect by running a program in the memory;
  • the transceiver is used to receive and transmit data under the control of the processor.
  • a terminal of the embodiment of the present invention is characterized in that: the terminal comprises a memory, a processor and a transceiver; wherein
  • the memory is for storing a computer readable program
  • the processor completes a method performed by the terminal in a large-scale antenna beam transmission method provided by the fourth aspect by running a program in the memory;
  • the transceiver is used to receive and transmit data under the control of the processor.
  • the base station determines a primary downlink transmission beam and at least one secondary downlink transmission beam for the terminal from the plurality of downlink transmission beams; the base station determines a first beamforming manner corresponding to the signal of the data channel between the terminal, and The first beamforming mode is carried in the control signal and sent to the terminal through the control channel, so that the terminal according to the control signal
  • the first beamforming mode receives a signal transmitted by the base station through the data channel, where the first beamforming manner is to beamform the signal of the data channel by using a primary downlink transmission beam and/or at least one auxiliary downlink beam. It can be seen that when the base station sends the control signal and the data signal to the terminal, the beamforming method can be flexibly selected to beamform the signal, thereby improving the efficiency of data transmission and enhancing the reliability of data transmission.
  • FIG. 1 is a schematic structural diagram of a system to which an embodiment of the present invention is applied;
  • FIG. 2 is a flowchart of a method for transmitting a large-scale antenna beam according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for transmitting a large-scale antenna beam according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a subset of control resources according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a terminal according to an embodiment of the present invention.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE FDD Frequency Division Duplex
  • LTE TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 is a schematic diagram showing a system architecture applicable to an embodiment of the present invention.
  • a system architecture applicable to an embodiment of the present invention includes a base station 101, and a terminal 102, a terminal 103, and a terminal 104, which are connected through a wireless connection. .
  • the terminal 102, the terminal 103, and the terminal 104 can communicate with one or more core networks via a RAN (Radio Access Network), and the terminal can refer to a UE (User Equipment) and access.
  • Terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), and a wireless communication.
  • the base station 101 may be a device for communicating with the terminal, for example, may be a BTS (Base Transceiver Station) in the GSM system or CDMA, or an NB (NodeB, base station) in the WCDMA system, or may be an LTE.
  • BTS Base Transceiver Station
  • NB NodeB, base station
  • LTE Long Term Evolution
  • Beamforming is a signal preprocessing technique based on an antenna array. Beamforming produces a directional beam by adjusting the weighting coefficients of each element in the antenna array, so that a significant array gain can be obtained. Therefore, beamforming technology has great advantages in terms of expanding coverage, improving edge throughput, and suppressing interference.
  • a method for transmitting a large-scale antenna beam includes:
  • Step 201 The base station determines, from the plurality of downlink transmit beams, a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal.
  • Step 202 The base station sends configuration information of the primary downlink transmission beam and configuration information of the at least one secondary downlink transmission beam to the terminal.
  • Step 203 The terminal receives the configuration information of the primary downlink transmission beam and the configuration information of the at least one secondary downlink transmission beam, and determines the primary downlink transmission beam and the at least one secondary downlink transmission beam.
  • Step 204 The base station determines a first beamforming manner corresponding to the signal of the data channel between the terminal, where the first beamforming manner is to pass the primary downlink transmission beam and/or the at least one secondary downlink beam pair.
  • the signal of the data channel is beamformed.
  • Step 205 The base station carries the indication information of the first beamforming manner in the control signal, and sends the indication information to the terminal through the control channel.
  • Step 206 The terminal receives the control signal sent by the base station, and determines, according to the first beamforming manner in the control signal, that the received signal is received by the first beamforming manner.
  • Step 207 The base station sends the signal to the terminal through the data channel by using a first beamforming manner.
  • Step 208 The terminal receives the signal by using a first beamforming manner.
  • the base station determines a primary downlink transmission beam and at least one secondary downlink transmission beam for one terminal, and the specific manners are at least the following:
  • Manner 1 The base station sends a training signal to the terminal to determine a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal.
  • the base station sends a downlink beam training signal to the terminal.
  • Base station Candidate downlink transmit beams, each downlink beam corresponding to a set of beamforming weights, and the transmit beam shaping weight of the nth beam
  • K is the number of beam-formed antenna elements, which can be smaller than the number of antenna elements of the base station.
  • the base station can transmit one downlink beam training signal for each candidate downlink transmit beam.
  • the base station can send Downlink beam training signals.
  • the downlink signal training signals may be TDM (Time Division Multiplexing), FDM (Frequency Division Multiplexing), CDM (Code Division Multiplexing), or various multiplexing methods. combination. For example, in a system based on OFDM (Orthogonal Frequency Division Multiplexing), Training signals can be occupied OFDM symbols, each training signal occupies 1 OFDM symbol.
  • the training signal of each downlink transmit beam is sent after the beamforming weight corresponding to the beam is shaped.
  • "transmitting with one beam”, “transmitting on one beam”, “using one beam transmission”, “passing through one beamforming transmission”, etc. all refer to shaping a beam corresponding to a beam by a beam.
  • the weight is shaped and sent out from the physical antenna. Assuming that the signal to be transmitted on a resource unit is s, the signal after shaping with the nth beam is:
  • the beam training signal is sent periodically or aperiodically.
  • the terminal receives the downlink beam training signal sent by the base station, and obtains the signal strength information of each downlink beam training signal by measuring the downlink beam training signal.
  • the terminal reports the information about the downlink transmit beam to the base station.
  • Relevant information includes the identity of the downlink transmit beam, such as the number of the downlink transmit beam.
  • the information of the downlink transmit beam fed back by the terminal may be different according to the multiplexing mode of the downlink beam/beam training signal.
  • the downlink beam training signal is time division multiplexed on different OFDM symbols or subframes, and the terminal measures and feeds back downlink time information.
  • the downlink beam training signal is multiplexed in different frequency resources, and the terminal measures and feeds back downlink frequency information.
  • the downlink transmit beam related information may further include downlink transmit beam training signal strength information received by the terminal, such as a received signal power level.
  • the base station determines, according to the received signal strength information of the multiple downlink transmit beams, a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal from the multiple downlink transmit beams.
  • the base station uses one downlink transmit beam with the strongest signal strength as the primary downlink transmit beam, and selects M from the downlink transmit beams other than the primary downlink transmit beam as the secondary downlink transmit beam, where M is greater than or equal to 1 .
  • one primary downlink transmit beam and at least one secondary downlink transmit beam can be determined.
  • Manner 2 The base station receives the recommended downlink transmit beam information reported by the terminal, and determines a primary downlink transmit beam and at least one auxiliary downlink transmit beam for the terminal based on the recommended downlink transmit beam information.
  • the terminal may further select a recommended downlink transmit beam according to the signal strength information of each downlink beam training signal. For example, the terminal may select the downlink transmit beam with the strongest received power of the training signal as the recommended downlink transmit beam.
  • the terminal sends the recommended downlink transmission beam to the base station, and sends the signal strength information corresponding to the recommended downlink transmission beam to the base station, where the base station determines one primary downlink transmission beam and at least one auxiliary downlink transmission from the recommended downlink transmission beam. Beam.
  • the terminal determines a corresponding downlink receiving beam for each recommended downlink transmitting beam (of course, it may also be a corresponding downlink receiving beam for each downlink transmitting beam, and is not limited to the recommended downlink. Transmit beam).
  • the terminal may also separately try to receive each downlink receiving beam, and select a downlink receiving beam with the strongest received signal power as the downlink receiving beam corresponding to the downlink transmitting beam.
  • Manner 3 The base station determines, according to the reciprocity of the uplink and downlink signals, a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal.
  • the base station In a system in which the uplink and downlink channel reciprocity is established, the base station has a correspondence between the uplink receiving beam and the downlink transmitting beam of the same terminal (specifically, the weight of the uplink receiving beam and the weight of the downlink transmitting beam). And the correspondence is known to the base station.
  • the base station receives the data signal and/or the control signal sent by the terminal, determines the uplink receiving beam, and then determines the corresponding downlink transmitting beam (determining the weight of the downlink transmitting beam) based on the channel reciprocity and the correspondence between the uplink and downlink beams.
  • the base station may select the downlink transmission beam corresponding to the uplink receiving beam with the highest uplink signal strength as the primary downlink transmission beam, and select the downlink transmission beam corresponding to the one or more uplink receiving beams with the highest strength from the remaining uplink receiving beams.
  • a secondary downlink transmit beam may be selected.
  • Manner 4 The base station determines, according to the channel state information fed back by the terminal in the CSI-RS signal feedback process, the primary downlink transmit beam and the at least one secondary downlink transmit beam for the terminal.
  • the CSI-RS (Channel state information reference signals) feedback process provided by the embodiment of the present invention is as follows:
  • the base station determines at least two downlink CSI-RS transmission beams.
  • the method of determination can be:
  • the base station performs selection based on the downlink transmission beam related information according to the downlink transmission beam related information reported by the terminal received in the foregoing training process. For example, if the information about the downlink transmit beam includes the strength information of the transmit beam, the base station may select the plurality of beams with the highest strength as the downlink CSI-RS transmit beam.
  • the base station transmits a CSI-RS signal.
  • the base station transmits a CSI-RS signal on each downlink CSI-RS transmit beam.
  • Each CSI-RS signal includes at least one antenna port. Transmitting a CSI-RS on a downlink beam means that the signal of each antenna port of the CSI-RS signal is sent out from the antenna after being shaped by the downlink beam.
  • the base station notifies the terminal of the downlink transmit beam related information corresponding to each CSI-RS signal.
  • the downlink transmit beam related information may be an identifier of a downlink transmit beam of the CSI-RS signal, and the number of the transmit beam is as follows.
  • the methods of notification include:
  • the base station includes information about the downlink transmit beam, such as the identifier of the downlink transmit beam, in the configuration information of each CSI-RS.
  • the configuration information of the CSI-RS may be transmitted through higher layer signaling or through physical layer signaling, such as DCI (downlink control information).
  • the base station notifies the terminal of the information about the downlink CSI-RS transmission beam through an independent signaling procedure (independent of the configuration process of the CSI-RS).
  • the base station further includes indication information in the configuration information of each CSI-RS, indicating which downlink CSI-RS transmission beam is used for each CSI-RS to transmit. For example, if the downlink CSI-RS transmission beam includes two beams, the configuration information of the CSI-RS may include one bit indicating that the beam is a downlink CSI-RS transmission beam 0 or a downlink CSI-RS transmission beam 1 transmission.
  • the terminal receives configuration information of each CSI-RS, receives downlink transmission beam related information of each CSI-RS signal, and determines a downlink receiving beam of each CSI-RS.
  • the terminal has determined the downlink receiving beam corresponding to each downlink transmitting beam during the training process.
  • the terminal learns the downlink transmission beam of each CSI-RS from the received information, and determines the downlink reception beam of each CSI-RS according to the correspondence between the downlink transmission beam and the downlink reception beam.
  • the terminal applies the CSI-RS signal to the downlink receiving beam of each CSI-RS, performs channel estimation, and calculates channel state information based on the channel estimation value.
  • the channel state information may include a CQI (Channel Quality Indicator), a PMI (Precoding Matrix Indicator), an RI (rank indication), and other parameters.
  • the calculation of the channel state information has the following possible ways:
  • Each CSI-RS is independently calculated, and the terminal independently calculates channel state information according to the channel value estimated by each CSI-RS.
  • the terminal needs to calculate multiple information when calculating CQI, PMI, RI, etc. of the data stream.
  • the CSI-RS transmits the combined result of the beam transmission, and therefore it is necessary to integrate the channel estimation results of the plurality of CSI-RSs for calculation.
  • the CSI feedback process can be performed in multiple CSI processes (one CSI-RS is sent to each CSI process).
  • the base station configures multiple CSI processes for the terminal.
  • Each CSI process is associated with one CSI-RS (one of a plurality of CSI-RSs in the CSI-RS transmission process).
  • the association may be performed by including an identifier of a CSI-RS in a configuration message of the CSI process, where the identifier points to a CSI-RS described in the CSI-RS transmission process.
  • the terminal receives the CSI process configuration information and performs feedback according to the configuration of the CSI process.
  • the process is: the terminal determines its associated CSI-RS signal according to each CSI process configuration information, and then determines the downlink receiving beam of the CSI-RS according to the manner described in the CSI-RS transmission process, receives the CSI-RS signal, and calculates the channel state. information.
  • the terminal feeds back channel state information to the base station according to the CSI process configuration information.
  • the form of feedback is:
  • the terminal determines the channel state information corresponding to each CSI-RS signal according to the channel estimation value of the CSI-RS signal associated with each process, and feeds back the channel state information corresponding to each CSI-RS signal to the base station.
  • the terminal selects one or more CSI-RS signals according to a certain criterion according to a channel estimation value of each CSI-RS signal associated with each process, and respectively determines and feeds back each CSI-RS signal corresponding to the selection.
  • the channel state information is fed back to the base station for the selected identification information of each CSI-RS signal.
  • the criteria chosen may be that the received signal is strongest, or the transmission capability is the strongest, or the channel capacity is the largest, or the channel quality is optimal.
  • the terminal determines the integrated channel state information according to the channel estimation value of the CSI-RS signal associated with each CSI-RS process, and the integrated channel state information is fed back to the base station.
  • Method 2 The feedback process of the CSI can also be performed by using a single CSI process.
  • the base station configures one CSI process for the terminal.
  • the CSI process is associated with multiple CSI-RSs (multiple CSI-RSs in the CSI-RS transmission process).
  • the association manner may be that the identifier of the multiple CSI-RSs is included in the configuration message of the CSI process, and the identifier points to one or more CSI-RSs described in the CSI-RS transmission process.
  • the terminal receives the configuration information of the CSI process, and performs feedback according to the configuration of the CSI process.
  • the process is that the terminal determines its associated CSI-RS according to the configuration of each CSI process, and then determines the downlink receiving beam of the CSI-RS according to the manner described in the CSI-RS sending process, receives the CSI-RS, and calculates channel state information.
  • the terminal feeds back channel state information to the base station according to the configuration of the CSI process.
  • the form of feedback is:
  • the terminal determines channel state information corresponding to each CSI-RS signal according to the channel estimation value of the CSI-RS signal associated with the CSI process, and feeds back channel state information corresponding to each CSI-RS signal to the base station.
  • the terminal selects one or more CSI-RS signals according to certain criteria according to channel estimation values of all CSI-RS signals associated with the CSI process, and respectively determines and feeds back selected channels corresponding to each CSI-RS signal. Status information, and the selected identification information of each CSI-RS signal is fed back to the base station.
  • the criteria chosen may be that the received signal is strongest, or the transmission capability is the strongest, or the channel capacity is the largest, or the channel quality is optimal.
  • the terminal determines the integrated channel state information according to the channel estimation value of the CSI-RS signal associated with the CSI process, and the integrated channel state information is fed back to the base station.
  • the base station receives the channel state information determined by the terminal for each CSI-RS signal, and uses the downlink CSI-RS transmission beam corresponding to the CSI-RS signal with the best channel quality in the channel state information as the primary downlink beam according to the channel state information. And one or more downlink CSI-RS transmission beams other than the downlink CSI-RS transmission beam corresponding to the CSI-RS signal with the best channel quality in the channel state information, as the auxiliary downlink beam.
  • the base station sends the configuration information of the primary downlink transmission beam and the configuration information of the at least one secondary downlink transmission beam to the terminal.
  • the terminal receives the configuration information of the primary downlink transmission beam and the configuration information of the at least one secondary downlink transmission beam, and determines the primary downlink transmission beam and the at least one secondary downlink transmission beam.
  • the base station determines a first beamforming manner corresponding to the signal of the data channel between the terminal, where the first beamforming manner is to pass the primary downlink transmission beam and/or the at least one auxiliary downlink.
  • the signal of the data channel may be a data signal, a CSI-RS signal, or other signals.
  • the first beamforming manner includes some or all of the following:
  • Space division multiplexing refers to the fact that multiple data are beamformed and transmitted on different downlink transmit beams.
  • Diversity refers to a data stream that is beamformed on multiple downstream transmit beams.
  • the first beamforming mode may be specified in an initial state, for example, specifying beamforming of a signal of a data channel through a primary downlink transmit beam, or specifying beamforming of a signal of a data channel by one or more secondary downlink transmit beams. Or specifying spatially multiplexed beamforming of the data channel by the primary downlink transmit beam and the secondary downlink beam, or specifying diversity beamforming of the data channel by the primary downlink transmit beam and the secondary downlink beam, etc. .
  • the first beamforming mode may be updated. Specifically, the base station according to the channel state information corresponding to the primary downlink transmitting beam and the channel state information corresponding to the at least one secondary downlink transmitting beam. Updating the first beamforming mode; or the base station continuously receiving the HARQ sent by the terminal (Nybrid Automatic Repeat reQuest), when the NACK (Negative Acknowledgement) feedback or the feedback of the terminal is not received, the update is performed according to the primary downlink transmission beam and the at least one secondary downlink transmission beam.
  • the first beam shaping mode is used to the NACK (Negative Acknowledgement) feedback or the feedback of the terminal is not received.
  • the terminal receives CSI-RS signal configuration information sent by the base station, where the CSI-RS signal configuration information includes configuration information of a CSI-RS signal downlink transmission beam, where the CSI-RS signal downlink transmission beam is the primary downlink transmission beam and One of the at least one auxiliary downlink transmission beam;
  • the terminal determines a CSI-RS downlink receiving beam corresponding to a downlink transmission beam of the CSI-RS signal, and receives a CSI-RS signal sent by the base station according to the CSI-RS downlink receiving beam;
  • the terminal obtains a channel estimation value according to the received CSI-RS signal, and obtains channel state information according to the channel estimation value, and then sends the channel state information to the base station;
  • the base station updates the first beamforming mode according to the obtained channel estimation value.
  • the selection may also be based on channel state information fed back by the terminal.
  • the base station receives the channel quality information (CQI) of the CSI process (CSI-RS) of the primary downlink transmission beam and the CSI process (CSI-RS) of the secondary downlink transmission beam, and selects a beam with a higher CQI for data transmission.
  • CQI channel quality information
  • CSI-RS channel quality information
  • CSI-RS CSI process
  • the base station selects a beam corresponding to the CSI process (or CSI-RS) recommended by the terminal for data transmission.
  • the primary downlink transmission beam and the secondary downlink transmission beam may be selected for transmission diversity transmission, that is, the same data stream is simultaneously transmitted from the primary downlink transmission beam and the secondary downlink transmission beam.
  • the base station carries the indication information of the first beamforming manner in the control signal, and sends the indication information to the terminal through the control channel.
  • the first beamforming manner can be sent to the terminal in at least two ways:
  • Step A The base station configures, for the terminal, a subset of the N control resources, where the control resource subset includes multiple resource units for control channel transmission, and one control resource subset is associated with one downlink transmission beam.
  • Step B The base station sends configuration information of the N control resource subsets to the terminal.
  • Step C The terminal monitors the N subsets of control resources.
  • Step D The base station carries the indication information of the first beamforming manner in the control signal, and sends the information to the terminal by using one or more control resource subsets in the N control resource subsets.
  • Step E The terminal acquires the first beamforming manner in the control signal when detecting that the effective control channel exists in the N control resource subsets, where the effective control channel refers to that the control signal of the control channel is sent to The terminal is sent to the terminal group where the terminal is located.
  • Step A The base station determines a second beamforming manner corresponding to a control signal of a control channel between the terminal, where the second beamforming manner is performed by using a primary downlink transmission beam and/or at least one secondary downlink beam pair control channel.
  • Control signal for beamforming
  • the second beamforming manner includes some or all of the following:
  • Step B The base station carries the indication information of the first beamforming manner in the control signal, performs beamforming on the control signal by using the second beamforming manner, and sends the control signal to the terminal through the control channel.
  • the base station performs beamforming on the control signal by using the second beamforming method, and then sends the signal to the terminal through the control channel, where the control signal includes a beamforming manner in which the terminal receives data transmitted by the base station through the data channel, specifically, The first beam shaping mode is included in the control signal.
  • the base station transmits, to the terminal, a control signal including indication information of a beamforming manner of the data channel transmission through the control channel.
  • the indication information about the beamforming manner of the data channel transmission included in the control channel is represented by 2 bits, and can be expressed in the manner described in Table 1.
  • the terminal receives the control signal sent by the base station, and according to the first beamforming manner in the control signal, determines the manner of receiving the signal by receiving the signal by the first beamforming manner.
  • the base station sends the signal to the terminal through the data channel by using the first beamforming manner.
  • the terminal receives the signal by the first beamforming method.
  • the terminal receives the signal sent by the base station.
  • the first beamforming method is used for receiving.
  • the terminal receives the downlink receiving beam corresponding to the primary downlink transmission beam
  • the terminal receives the downlink receiving beam corresponding to the auxiliary downlink transmission beam
  • the terminal receives the downlink downlink beam corresponding to the primary downlink transmission beam and the secondary downlink transmission beam;
  • the terminal receives the downlink downlink transmit beam corresponding to the primary downlink transmit beam and the secondary downlink transmit beam.
  • the terminal receives the signal with the determined downlink receive beam and performs data demodulation.
  • control signal and the data signal are transmitted by using the main downlink transmission beam and/or the auxiliary downlink transmission beam, thereby improving the stability of the information transmission and improving the stability.
  • the efficiency of data transmission by using the foregoing steps 201 to 208, the control signal and the data signal are transmitted by using the main downlink transmission beam and/or the auxiliary downlink transmission beam, thereby improving the stability of the information transmission and improving the stability. The efficiency of data transmission.
  • the base station determines a primary downlink transmission beam and at least one secondary downlink transmission beam for the terminal from the plurality of downlink transmission beams; the base station determines a first beamforming manner corresponding to the signal of the data channel between the terminal, and The first beamforming manner is carried in the control signal, and is sent to the terminal through the control channel, so that the terminal receives the signal sent by the base station through the data channel according to the first beamforming manner in the control signal, where the first beamforming manner Generating a signal of the data channel by a primary downlink transmit beam and/or at least one secondary downlink beam Forming, it can be seen that when the base station sends the control signal and the data signal to the terminal, the beamforming method can be flexibly selected to beamform the signal, thereby improving the efficiency of data transmission and enhancing the reliability of data transmission.
  • an embodiment of the present invention provides a large-scale antenna beam transmission method, as shown in FIG. 3, including:
  • Step 301 The base station configures, to the terminal, N control resource subsets, where the one control resource subset includes multiple resource units used for control channel transmission.
  • Step 302 The base station sends configuration information of the N control resource subsets to the terminal, where the configuration information includes indication information of a downlink transmission beam corresponding to each control resource subset.
  • Step 303 The terminal receives configuration information of N control resource subsets sent by the base station.
  • Step 304 The base station sends a control signal to the terminal in the at least one control resource subset in the N control resource subsets.
  • Step 305 The terminal receives, by the base station, a control signal sent by using at least one control resource subset in the N control resource subsets.
  • step 305 the specific manner can be implemented in the following manner:
  • the base station configures N control resource subsets for the terminal, and one control resource subset includes multiple resource units for control channel transmission, and one control resource subset is associated with one downlink transmission beam.
  • the subset of control resources can be CDM, TDM, or FDM multiplexed.
  • the subset of control resources is TDM multiplexed.
  • FIG. 4 includes two subsets of control resources, which are respectively configured on different OFDM symbols.
  • the base station may send a control control signal to the terminal by controlling the subset of resources, and may be sent on a subset of the control resources, or may be sent on multiple subsets of the control resources, thereby implementing Flexible transmission of control signals improves transmission efficiency and stability.
  • an embodiment of the present invention further provides a base station, as shown in FIG. 5, including:
  • the processing unit 501 is configured to determine a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal from the plurality of downlink transmit beams, and determine a first beamforming manner corresponding to the signal of the data channel between the terminals, where The first beamforming manner is to perform beamforming on the data channel by using the primary downlink transmit beam and/or the at least one secondary downlink beam;
  • the transceiver unit 502 is configured to send configuration information of the primary downlink transmit beam and configuration information of the at least one secondary downlink transmit beam to the terminal, and carry the indication information of the first beamforming manner to a control signal. And transmitting, by the control channel, to the terminal, so that the terminal receives a signal sent by the base station by using the data channel according to the first beamforming manner in the control signal.
  • the transceiver unit 502 is configured to: send a training signal to the terminal according to the multiple downlink transmit beams, so that the terminal determines signal strength information of the multiple downlink transmit beams and sends the information to the terminal The base station;
  • the processing unit 501 determines the primary downlink transmission beam and the at least one secondary downlink transmission beam for the terminal from the plurality of downlink transmission beams
  • the processing unit 501 is specifically configured to: pass the transceiver component 502 according to the multiple downlink transmission beams.
  • the terminal sends a training signal, so that the terminal determines signal strength information of the multiple downlink transmit beams and sends the signal strength information to the base station; according to the signal strength of the multiple downlink transmit beams received by the transceiver unit 502 Determining, from the plurality of downlink transmit beams, a primary downlink transmit beam and at least one secondary downlink transmit beam for the terminal; or
  • the processing unit 501 receives, by using the transceiver unit 502, channel state information that is determined by the terminal for the CSI-RS signal, and determines, according to the channel state information, a primary downlink for the terminal.
  • the transmit beam and the at least one secondary downlink transmit beam are used, specifically:
  • Corresponding downlink CSI-RS transmission beam as the primary downlink beam, and one or more downlink CSIs other than the downlink CSI-RS transmission beam corresponding to the CSI-RS signal with the best channel quality in the channel state information - RS transmit beam as the at least one secondary downlink beam.
  • the transceiver unit 502 carries the indication information of the first beamforming manner in a control signal, and when the control channel is sent to the terminal, specifically used to:
  • control resource subset includes multiple resource units for control channel transmission, and one control resource subset is associated with one downlink transmission beam;
  • processing unit 501 is further configured to:
  • the transceiver unit 502 transmitting, by the transceiver unit 502, the indication information of the first beamforming manner to a control signal, and before transmitting to the terminal by using a control channel, determining, corresponding to a control signal of a control channel between the terminal a second beamforming manner, wherein the second beamforming manner is to perform beamforming on a control signal of the control channel by using the primary downlink transmission beam and/or the at least one secondary downlink beam;
  • the transceiver unit 502 carries the indication information of the first beamforming manner in a control signal, using the When the control channel is sent to the terminal, it is specifically used to:
  • the indication information of the first beamforming manner is carried in the control signal, and the control signal is beamformed by the second beamforming manner, and then sent to the terminal through the control channel.
  • processing unit 501 is further configured to:
  • the transceiver unit 502 the HARQ non-answer NACK feedback sent by the terminal or receiving the feedback of the terminal, according to the primary downlink transmission beam and the at least one auxiliary downlink. Transmitting a beam and updating the first beamforming mode.
  • the transceiver unit 502 is further configured to: send CSI-RS signal configuration information to the terminal, where the CSI-RS signal configuration information includes configuration information of a downlink transmission beam of a CSI-RS signal, where The CSI-RS signal downlink transmission beam is one of the primary downlink transmission beam and the at least one secondary downlink transmission beam; the CSI-RS signal downlink transmission beam is used to transmit a CSI-RS signal; and the receiving the terminal is based on the The channel state information obtained by the CSI-RS signal is measured.
  • the transceiver unit 502 is further configured to: send CSI process configuration information to the terminal, where the CSI process configuration information includes association indication information of one or more CSI-RS signals; and receiving the terminal according to The channel state information obtained by the measurement is performed by one or more CSI-RS signals associated with the CSI process in the terminal.
  • the first beamforming manner includes some or all of the following:
  • the second beamforming manner includes some or all of the following:
  • the control signal of the control channel is beamformed by the primary downlink transmission beam
  • the control signal of the control channel is beamformed by the secondary downlink transmission beam
  • the control signal of the control channel is diversityd by the primary downlink transmission beam and the secondary downlink beam. Beamforming.
  • the base station determines a primary downlink transmission beam and at least one secondary downlink transmission beam for the terminal from the plurality of downlink transmission beams; the base station determines a first beamforming manner corresponding to the signal of the data channel between the terminal, and The first beamforming manner is carried in the control signal, and is sent to the terminal through the control channel, so that the terminal receives the signal sent by the base station through the data channel according to the first beamforming manner in the control signal, where the first beamforming manner
  • the beamforming of the signal of the data channel is performed by using the primary downlink transmission beam and/or the at least one secondary downlink beam. Therefore, when the base station sends the control signal and the data signal to the terminal, the beamforming mode can be flexibly selected. Beamforming improves the efficiency of data transmission and enhances the reliability of data transmission.
  • an embodiment of the present invention further provides a terminal, as shown in FIG. 6, including:
  • the transceiver unit 602 is configured to receive configuration information of a primary downlink transmit beam and configuration information of at least one secondary downlink transmit beam sent by the base station, and receive a control signal sent by the base station, where the control signal includes the base station and the terminal
  • the first beamforming manner corresponding to the signal of the data channel, the first beamforming manner is to perform beam assignment on the signal of the data channel by using the primary downlink transmission beam and/or the at least one secondary downlink beam shape;
  • the processing unit 601 is configured to: according to the primary downlink transmit beam that is sent by the base station and received by the transceiver unit 602 Determining, by the configuration information, configuration information of the at least one secondary downlink transmit beam, the primary downlink transmit beam and the at least one secondary downlink transmit beam; receiving, by the transceiver unit 602, the base station according to the first beamforming manner The signal transmitted by the data channel.
  • the transceiver unit 602 when the transceiver unit 602 receives the control signal sent by the base station, specifically, the transceiver unit 602 is configured to:
  • Receiving, by the base station, the control signal that is beamformed by the second beamforming mode, which is sent by using a control channel between the base station, and the second beamforming manner is to pass the primary downlink transmission beam and/or the The at least one auxiliary downlink beam performs beamforming on a control signal of the control channel.
  • the transceiver unit 602 is further configured to: receive CSI-RS signal configuration information sent by the base station, where the CSI-RS signal configuration information includes configuration information of a downlink transmission beam of a CSI-RS signal, where The downlink transmission beam of the CSI-RS signal is one of the primary downlink transmission beam and the at least one secondary downlink transmission beam;
  • the processing unit 601 is further configured to: determine a CSI-RS downlink receiving beam corresponding to the downlink transmission beam of the CSI-RS signal, and receive the base station by using the transceiver component 602 according to the CSI-RS downlink receiving beam.
  • the CSI-RS signal is sent; the channel estimation value is obtained according to the CSI-RS signal received by the transceiver unit 602, and the channel state information is obtained according to the channel estimation value, and then sent to the base station by the transceiver unit 602.
  • the transceiver unit 602 is further configured to: receive CSI process configuration information sent by the base station, where the CSI process configuration information includes association indication information of one or more CSI-RS signals;
  • the processing unit 601 obtains a channel estimation value according to the CSI-RS signal received by the transceiver unit 602, and obtains channel state information according to the channel estimation value, and then sends the channel state information to the base station through the transceiver unit 602. For obtaining, according to the CSI-RS signal received by the transceiver unit 602, a channel estimation value of one or more CSI-RS signals associated with each process; one or more CSI-RS signals associated according to each process The channel estimation value determines channel state information and feeds back to the base station through the transceiver unit 602.
  • the processing unit 601 determines the channel state information according to the channel estimation value of the one or more CSI-RS signals associated with each process, and when the channel state information is fed back to the base station by using the transceiver unit 602, specifically:
  • the processing unit 601 when the processing unit 601 receives, by using the transceiver unit 602, the signal sent by the base station by using the data channel, the processing unit 601 is specifically configured to:
  • the downlink receiving beam corresponding to the primary downlink transmission beam is received by the transceiver unit 602; or
  • the first beamforming mode is that the data channel uses the auxiliary downlink transmission beam transmission
  • the downlink receiving beam corresponding to the secondary downlink transmission beam is received by the transceiver unit 602;
  • the first beamforming mode is that the data channel uses the primary downlink transmitting beam and the secondary downlink beam to perform space division multiplexing transmission
  • the downlink receiving beam corresponding to the primary downlink transmitting beam and the secondary downlink transmitting beam respectively passes through the transceiver unit. 602 for receiving;
  • the first beamforming mode is that the data channel uses the primary downlink transmission beam and the secondary downlink beam for diversity transmission
  • the downlink receiving beam corresponding to the primary downlink transmission beam and the secondary downlink transmission beam respectively is received by the transceiver unit 602. .
  • the base station determines a primary downlink transmission beam and at least one secondary downlink transmission beam for the terminal from the plurality of downlink transmission beams; the base station determines a first beamforming manner corresponding to the signal of the data channel between the terminal, and The first beamforming manner is carried in the control signal, and is sent to the terminal through the control channel, so that the terminal receives the signal sent by the base station through the data channel according to the first beamforming manner in the control signal, where the first beamforming manner
  • the beamforming of the signal of the data channel is performed by using the primary downlink transmission beam and/or the at least one secondary downlink beam. Therefore, when the base station sends the control signal and the data signal to the terminal, the beamforming mode can be flexibly selected. Beamforming improves the efficiency of data transmission and enhances the reliability of data transmission.
  • an embodiment of the present invention further provides a base station, as shown in FIG. 7, including:
  • the processing unit 701 is configured to configure, by the terminal, N control resource subsets, where the one control resource subset includes multiple resource units for control channel transmission;
  • the transceiver unit 702 is configured to send configuration information of the N control resource subsets to the terminal, where the configuration information includes indication information of a downlink transmission beam corresponding to each control resource subset; Within the subset of at least one control resource in the control resource subset, a control signal is sent to the terminal.
  • the transceiver unit 702 when transmitting a control signal to the terminal in the at least one control resource subset of the N control resource subsets, is specifically configured to: in the N control resource subsets The downlink transmit beam corresponding to the at least one control resource subset sends the control signal to the terminal.
  • the base station may send a control control signal to the terminal by controlling the subset of resources, and may be sent on a subset of the control resources, or may be sent on multiple subsets of the control resources, thereby implementing Flexible transmission of control signals improves transmission efficiency and stability.
  • an embodiment of the present invention further provides a terminal, as shown in FIG. 8, including:
  • the transceiver unit 802 is configured to receive configuration information of the N control resource subsets sent by the base station, where the one control resource subset includes multiple resource units used for control channel transmission, where the configuration information includes each control resource sub- And transmitting, by the base station, the control signal sent by the at least one control resource subset in the N control resource subsets.
  • the terminal further includes a processing unit 801, configured to: determine, according to the indication information of the downlink transmit beam corresponding to the at least one control resource subset, the downlink receive beam that receives the subset of the control resources. ;
  • the receiving and receiving unit 802 receives the control signal sent by the base station in the at least one control resource subset of the N control resource subsets, specifically, the downlink receiving beam determined by the processing unit 801 is A control signal is received within the subset of control resources.
  • the base station may send a control control signal to the terminal by controlling the subset of resources, and may be sent on a subset of the control resources, or may be sent on multiple subsets of the control resources, thereby implementing Flexible transmission of control signals improves transmission efficiency and stability.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

本发明实施例涉及无线通信技术领域，尤其涉及一种大规模天线波束传输方法及基站、终端，用以提高大规模天线波束传输中的传输效率及增强可靠性，包括：基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；基站确定与终端之间的数据信道对应的第一波束赋形方式，将第一波束赋形方式携带于控制信号中通过控制信道发送至终端，使终端根据第一波束赋形方式接收基站发送的信号，第一波束赋形方式为通过主下行发送波束和/或至少一个辅下行波束对数据信道的信号进行波束赋形，可见，基站向终端发送信号时，可以灵活选择波束赋形方式对信号进行波束赋形，提高了数据传输的效率，以及增强了数据传输的可靠性。

Description

一种大规模天线波束传输方法及基站、终端
本申请要求在2016年9月30日提交中国专利局、申请号为201610875801.1、发明名称为一种大规模天线波束传输方法及基站、终端的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，尤其涉及一种大规模天线波束传输方法及基站、终端。
背景技术
为了进一步提升MIMO(Multiple-Input Multiple-Output，多输入多输出系统)技术，移动通信系统中引入大规模天线技术。对于基站，全数字化的大规模天线可以有高达128/256/512个天线振子，以及高达128/256/512个收发单元，每个天线振子连接一个收发单元。通过发送高达128/256/512个天线端口的导频信号，使得终端测量信道状态信息并反馈。对于终端，也可以配置高达32/64个天线振子的天线阵列。通过基站和终端两侧的波束赋形，获得巨大的波束赋形增益，以弥补路径损耗带来的信号衰减。尤其是在高频段通信，例如30GHz频点上，路径损耗使得无线信号的覆盖范围极其有限。通过大规模天线技术，可以将无线信号的覆盖范围扩大到可以实用的范围内。
现有技术中，在进行大规模天线波束传输时，一般是通过训练过程，确定基站与终端之间的波束赋形对应关系，其大致过程如下：
1)、基站发送下行波束训练信号。基站共有多个候选下行发送波束，每个候选下行发送波束对应一组波束赋形权值，基站可以为每个候选下行发送波束发射一个波束训练信号，即每个候选下行发送波束的波束训练信号用该波束对应的波束赋形权值赋形之后发出。
2)、终端接收基站发送的下行波束训练信号，通过对波束训练信号的测量，选择推荐的下行发送波束。例如，终端可以选择训练信号接收功率最强的候选下行发送波束为推荐波束。
3)、针对每个推荐下行发送波束，终端确定对应的下行接收波束。
4)、终端将推荐的下行发送波束的相关信息上报给基站。相关的信息包括推荐的下行发送波束的标识(例如下行发送波束的编号)，终端收到的下行发送波束训练信号强度信息(例如接收信号功率水平)等。
5)、基站根据终端上报的下行发送波束的相关信息，从中确定选用的下行发送波束。
通过上述过程即可实现为一个终端确定对应的一个或多个下行发送波束，以及确定终端侧的下行接收波束，并且在数据传输过程中，基站是从确定的多个下行发送波束中选择一个下行波束向终端发送信号，且确定了选择的下行波束之后不可更改。
上述过程存在的问题是：在确定了终端对应的多个下行发送波束后，基站每次向终端发送数据时，只能从多个下行发送波束中选择一个进行信号的发送，且选择的下行发送波束不可更改，这在需要传输大量信号时，将会导致严重的性能瓶颈，并且可靠性也不是很高。
综上所述，现有技术中的大规模天线波束传输方法存在可靠性不高，传输效率较低的 技术问题。
发明内容
本发明实施例提供一种大规模天线波束传输方法及基站、终端，用以提高大规模天线波束传输中的传输效率及增强可靠性。
第一方面，本发明实施例提供一种大规模天线波束传输方法，包括：
基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；
所述基站将所述主下行发送波束的配置信息和所述至少一个辅下行发送波束的配置信息发送至所述终端；
所述基站确定与所述终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端，以使所述终端根据所述第一波束赋形方式接收所述基站通过所述数据信道发送的信号。
可选地，基站从多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束，包括：
所述基站根据所述多个下行发送波束向所述终端发送训练信号，以使所述终端确定所述多个下行发送波束的信号强度信息并发送给所述基站；所述基站根据接收到的所述多个下行发送波束的信号强度信息，从所述多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
所述基站接收所述终端上报的推荐的下行发送波束信息，基于所述推荐的下行发送波束信息确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
所述基站根据接收到的所述终端的数据信号和/或控制信号，确定多个上行接收波束的信号强度信息；所述基站根据确定的多个上行接收波束的信号强度信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
所述基站从所述多个下行发送波束中选择至少一个下行发送波束，作为下行信道状态信息参考信号CSI-RS发送波束，并使用所述下行CSI-RS发送波束向所述终端发送CSI-RS信号；
所述基站接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束。
可选地，所述基站接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束，包括：
所述基站接收所述终端发送的针对每个CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，将所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束作为所述主下行波束，将除所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束之外的一个或多个下行CSI-RS发送波束，作为所述至少一个辅下行波束。
可选地，所述基站将所述第一波束赋形方式携带于控制信号中，经所述第二波束赋形方式对所述控制信号进行波束赋形后，通过所述控制信道发送至所述终端，包括：
所述基站为所述终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，且一个控制资源子集与一个下行发送波束关联；
所述基站将所述N个控制资源子集的配置信息发送至所述终端，以使所述终端对所述N个控制资源子集进行监测；
所述基站将所述第一波束赋形方式的指示信息携带于所述控制信号中，通过所述N个控制资源子集中的一个或多个控制资源子集发送至所述终端，以使所述终端在监测到所述N个控制资源子集中存在有效控制信道时，获取所述控制信号中的所述第一波束赋形方式，所述有效控制信道是指控制信道的控制信号是发送给所述终端，或是发送给所述终端所在终端组的。
可选地，所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端之前，还包括：
所述基站确定与所述终端之间的控制信道的控制信号对应的第二波束赋形方式，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形；
所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端，包括：
所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，经所述第二波束赋形方式对所述控制信号进行波束赋形后，通过所述控制信道发送至所述终端。
可选地，所述基站根据所述终端反馈的所述主下行发送波束对应的信道状态信息及所述至少一个辅下行发送波束对应的信道状态信息，更新所述第一波束赋形方式；或者
所述基站在持续接收到所述终端发送的混合自动重传请求HARQ非应答NACK反馈或收不到所述终端的反馈时，根据所述主下行发送波束和所述至少一个辅下行发送波束，更新所述第一波束赋形方式。
可选地，所述基站向所述终端发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
所述基站用所述CSI-RS信号下行发送波束发送CSI-RS信号；
所述基站接收所述终端基于所述CSI-RS信号进行测量得到的信道状态信息。
可选地，所述基站向所述终端发送CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；
所述基站接收所述终端根据与所述终端中的CSI进程关联的一个或者多个CSI-RS信号进行测量得到的信道状态信息。
可选地，所述第一波束赋形方式包括下列部分或全部：
通过主下行发送波束对数据信道的信号进行波束赋形、通过辅下行发送波束对数据信道的信号进行波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形。
可选地，所述第二波束赋形方式包括下列部分或全部：
通过主下行发送波束对控制信道的控制信号进行波束赋形、通过辅下行发送波束对控 制信道的控制信号进行波束赋形、通过主下行发送波束和辅下行波束进行对控制信道的控制信号进行分集波束赋形。
第二方面，本发明实施例提供一种大规模天线波束传输方法，包括：
终端接收基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息，确定所述主下行发送波束和至少一个辅下行发送波束；
所述终端接收所述基站发送的控制信号，所述控制信号中包含所述基站与所述终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
所述终端根据所述第一波束赋形方式接收所述基站通过所述数据信道发送的信号。
可选地，所述终端接收基站发送的控制信号，包括：
所述终端接收所述基站通过与所述终端之间的控制信道发送的经第二波束赋形方式波束赋形的所述控制信号，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形。
可选地，所述终端接收所述基站发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
所述终端确定与所述CSI-RS信号下行发送波束对应的CSI-RS下行接收波束，并根据所述CSI-RS下行接收波束接收所述基站发送的CSI-RS信号；
所述终端根据接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后发送给所述基站。
可选地，所述方法还包括：
所述终端接收所述基站发送的CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；
所述终端根据所述关联指示信息，确定每个进程关联的一个或者多个CSI-RS信号；
所述终端根据接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后发送给所述基站，包括：
所述终端根据接收到的CSI-RS信号，得到每个进程关联的一个或者多个CSI-RS信号的信道估计值；
所述终端根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并反馈给所述基站。
可选地，所述终端根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并反馈给所述基站，包括：
所述终端根据每个进程关联的每个CSI-RS信号的信道估计值，分别确定每个CSI-RS信号对应的信道状态信息，并将每个CSI-RS信号对应的信道状态信息反馈给基站；或者
所述终端根据每个CSI-RS进程关联的CSI-RS信号的信道估计值，确定综合的信道状态信息，并所述综合的信道状态信息反馈给基站；或者
所述终端根据每个进程关联的每个CSI-RS信号的信道估计值，选择其中的一个或者多个CSI-RS信号，分别确定并反馈选择的每个CSI-RS信号对应的信道状态信息，并将选择的每个CSI-RS信号的标识信息反馈给所述基站。
可选地，所述终端根据所述第一波束赋形方式接收所述基站发送所述数据信道的信 号，包括：
若所述第一波束赋形方式为数据信道采用主下行发送波束传输，则所述终端用主下行发送波束对应的下行接收波束进行接收；或
若所述第一波束赋形方式为数据信道采用辅下行发送波束传输，则所述终端用辅下行发送波束对应的下行接收波束进行接收；或
若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行空分复用传输，则所述终端用主下行发送波束和辅下行发送波束分别对应的下行接收波束进行接收；或
若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行分集传输，则所述终端用主下行发送波束和辅下行发送波束分别对应的下行接收波束进行接收。
第三方面，本发明实施例提供一种大规模天线波束传输方法，包括：
基站为终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元；
所述基站将所述N个控制资源子集的配置信息发送至所述终端，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；
所述基站在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号。
可选地，所述基站在所述N个控制资源子集中的一个或多个控制资源子集内，向所述终端发送控制信号，包括：
所述基站在所述N个控制资源子集中的至少一个控制资源子集对应的下行发送波束向所述终端发送所述控制信号。
第四方面，本发明实施例提供一种大规模天线波束传输方法，包括：
终端接收基站发送的N个控制资源子集的配置信息，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；
所述终端接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号。
可选地，所述终端接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号，包括：
所述终端根据所述至少一个控制资源子集对应的下行发送波束的指示信息，确定接收所述控制资源子集的下行接收波束；
所述终端用所述下行接收波束在所述控制资源子集内接收控制信号。
第五方面，本发明实施例提供一种基站，包括：
处理单元，用于从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；确定与所述终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
收发单元，用于将所述主下行发送波束的配置信息和所述至少一个辅下行发送波束的配置信息发送至所述终端；将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端，以使所述终端根据所述控制信号中的所述第一波束赋形方式接 收基站通过所述数据信道发送的信号。
可选地，所述处理单元从多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束时，具体用于：根据所述多个下行发送波束通过所述收发单元向所述终端发送训练信号，以使所述终端确定所述多个下行发送波束的信号强度信息并发送给所述基站；根据所述收发单元接收到的所述多个下行发送波束的信号强度信息，从所述多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
通过所述收发单元接收所述终端上报的推荐的下行发送波束信息；基于所述推荐的下行发送波束信息确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
根据所述收发单元接收到的所述终端的数据信号和/或控制信号，确定多个上行接收波束的信号强度信息；根据确定的多个上行接收波束的信号强度信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
从所述多个下行发送波束中选择至少一个下行发送波束，作为下行信道状态信息参考信号CSI-RS发送波束，并通过所述收发单元使用所述下行CSI-RS发送波束向所述终端发送CSI-RS信号；通过所述收发单元接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束。
可选地，所述处理单元通过所述收发单元接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束时，具体用于：
通过所述收发单元接收所述终端发送的针对每个CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，将所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束作为所述主下行波束，将除所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束之外的一个或多个下行CSI-RS发送波束，作为所述至少一个辅下行波束。
可选地，所述收发单元将所述第一波束赋形方式的指示信息携带于控制信号中，使用所述控制信道发送至所述终端时，具体用于：
为所述终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，且一个控制资源子集与一个下行发送波束关联；
将所述N个控制资源子集的配置信息发送至所述终端，以使所述终端对所述N个控制资源子集进行监测；
将所述第一波束赋形方式的指示信息携带于所述控制信号中，通过所述N个控制资源子集中的一个或多个控制资源子集发送至所述终端，以使所述终端在监测到所述N个控制资源子集中存在有效控制信道时，获取所述控制信号中的所述第一波束赋形方式，所述有效控制信道是指控制信道的控制信号是发送给所述终端，或是发送给所述终端所在终端组的。
可选地，所述处理单元，还用于：
在通过所述收发单元将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端之前，确定与所述终端之间的控制信道的控制信号对应的第二波束赋形方式，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波 束对所述控制信道的控制信号进行波束赋形；
所述收发单元将所述第一波束赋形方式的指示信息携带于控制信号中，使用所述控制信道发送至所述终端时，具体用于：
将所述第一波束赋形方式的指示信息携带于控制信号中，经所述第二波束赋形方式对所述控制信号进行波束赋形后，通过所述控制信道发送至所述终端。
可选地，所述处理单元，还用于：
根据通过所述收发单元接收到的所述终端反馈的所述主下行发送波束对应的信道状态信息及所述至少一个辅下行发送波束对应的信道状态信息，更新所述第一波束赋形方式；或者
在通过所述收发单元持续接收到所述终端发送的混合自动重传请求HARQ非应答NACK反馈或收不到所述终端的反馈时，根据所述主下行发送波束和所述至少一个辅下行发送波束，更新所述第一波束赋形方式。
可选地，所述收发单元，还用于：向所述终端发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；用所述CSI-RS信号下行发送波束发送CSI-RS信号；接收所述终端基于所述CSI-RS信号进行测量得到的信道状态信息。
可选地，所述收发单元，还用于：向所述终端发送CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；接收所述终端根据与所述终端中的CSI进程关联的一个或者多个CSI-RS信号进行测量得到的信道状态信息。
可选地，所述第一波束赋形方式包括下列部分或全部：
通过主下行发送波束对数据信道的信号进行波束赋形、通过辅下行发送波束对数据信道的信号进行波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形。
可选地，所述第二波束赋形方式包括下列部分或全部：
通过主下行发送波束对控制信道的控制信号进行波束赋形、通过辅下行发送波束对控制信道的控制信号进行波束赋形、通过主下行发送波束和辅下行波束进行对控制信道的控制信号进行分集波束赋形。
第六方面，本发明实施例提供一种终端，包括：
收发单元，用于接收基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息；接收所述基站发送的控制信号，所述控制信号中包含所述基站与终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
处理单元，用于根据所述收发单元接收的所述基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息，确定所述主下行发送波束和至少一个辅下行发送波束；根据所述第一波束赋形方式通过所述收发单元接收所述基站通过所述数据信道发送的信号。
可选地，所述收发单元接收所述基站发送的控制信号时，具体用于：
接收基站通过与所述终端之间的控制信道发送的经第二波束赋形方式波束赋形的所述控制信号，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行 波束对所述控制信道的控制信号进行波束赋形。
可选地，所述收发单元，还用于：接收所述基站发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
所述处理单元，还用于：确定与所述CSI-RS信号下行发送波束对应的CSI-RS下行接收波束，并根据所述CSI-RS下行接收波束通过所述收发单元接收所述基站发送的CSI-RS信号；根据通过所述收发单元接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后通过所述收发单元发送给所述基站。
可选地，所述收发单元，还用于：接收所述基站发送的CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；
根据所述关联指示信息，确定每个进程关联的一个或者多个CSI-RS信号；
所述处理单元根据所述收发单元接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后通过所述收发单元发送给所述基站时，具体用于：根据所述收发单元接收到的CSI-RS信号，得到每个进程关联的一个或者多个CSI-RS信号的信道估计值；根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并通过所述收发单元反馈给所述基站。
可选地，所述处理单元根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并通过所述收发单元反馈给所述基站时，具体用于：
根据每个进程关联的每个CSI-RS信号的信道估计值，分别确定每个CSI-RS信号对应的信道状态信息，并将每个CSI-RS信号对应的信道状态信息反馈给基站；或者
根据每个CSI-RS进程关联的CSI-RS信号的信道估计值，确定综合的信道状态信息，并所述综合的信道状态信息反馈给基站；或者
根据每个进程关联的每个CSI-RS信号的信道估计值，选择其中的一个或者多个CSI-RS信号，分别确定并反馈选择的每个CSI-RS信号对应的信道状态信息，并将选择的每个CSI-RS信号的标识信息反馈给所述基站。
可选地，所述处理单元根据所述第一波束赋形方式通过所述收发单元接收所述基站发送所述数据信道的信号时，具体用于：
若所述第一波束赋形方式为数据信道采用主下行发送波束传输，则采用主下行发送波束对应的下行接收波束通过所述收发单元进行接收；或
若所述第一波束赋形方式为数据信道采用辅下行发送波束传输，则采用辅下行发送波束对应的下行接收波束通过所述收发单元进行接收；或
若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行空分复用传输，则采用主下行发送波束和辅下行发送波束分别对应的下行接收波束通过所述收发单元进行接收；或
若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行分集传输，则采用主下行发送波束和辅下行发送波束分别对应的下行接收波束通过所述收发单元进行接收。
第七方面，本发明实施例提供一种基站，包括：
处理单元，用于为终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元；
收发单元，用于将所述N个控制资源子集的配置信息发送至所述终端，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号。
可选地，所述收发单元在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号时，具体用于：在所述N个控制资源子集内的至少一个控制资源子集对应的下行发送波束向所述终端发送所述控制信号。
第八方面，本发明实施例提供一种终端，包括：
收发单元，用于接收基站发送的N个控制资源子集的配置信息，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号。
可选地，所述终端还包括处理单元，所述处理单元用于：根据所述至少一个控制资源子集对应的下行发送波束的指示信息，确定接收所述控制资源子集的下行接收波束；
所述收发单元接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号时，具体用于：用所述处理单元确定的所述下行接收波束在所述控制资源子集内接收控制信号。
第九方面，本发明实施例提供一种基站，该基站包括存储器、处理器和收发机；其中，
存储器用于存储计算机可读程序；
处理器通过运行存储器中的程序，以完成第一方面提供的一种大规模天线波束传输方法中基站执行的方法；
收发机用于在处理器的控制下接收和发送数据。
第十方面，本发明实施例一种终端，该终端包括存储器、处理器和收发机；其中，
存储器用于存储计算机可读程序；
处理器通过运行存储器中的程序，以完成第二方面提供的一种大规模天线波束传输方法中终端执行的方法；
收发机用于在处理器的控制下接收和发送数据。
第十一方面，本发明实施例一种基站，该基站包括存储器、处理器和收发机；其中，
存储器用于存储计算机可读程序；
处理器通过运行存储器中的程序，以完成第三方面提供的一种大规模天线波束传输方法中基站执行的方法；
收发机用于在处理器的控制下接收和发送数据。
第十二方面，本发明实施例一种终端，其特征在于，终端包括存储器、处理器和收发机；其中，
存储器用于存储计算机可读程序；
处理器通过运行存储器中的程序，以完成第四方面提供的一种大规模天线波束传输方法中终端执行的方法；
收发机用于在处理器的控制下接收和发送数据。
本发明实施例，基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；基站确定与终端之间的数据信道的信号对应的第一波束赋形方式，将第一波束赋形方式携带于控制信号中，通过控制信道发送至终端，以使终端根据控制信号 中的第一波束赋形方式接收基站通过数据信道发送的信号，其中，第一波束赋形方式为通过主下行发送波束和/或至少一个辅下行波束对所述数据信道的信号进行波束赋形，由此可见，基站向终端发送控制信号和数据信号时，可以灵活选择波束赋形方式对信号进行波束赋形，提高了数据传输的效率，以及增强了数据传输的可靠性。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例所适用的系统架构示意图；
图2为本发明实施例提供的一种大规模天线波束传输方法流程图；
图3为本发明实施例提供的一种大规模天线波束传输方法流程图；
图4为本发明实施例提供的控制资源子集示意图；
图5为本发明实施例提供的一种基站示意图；
图6为本发明实施例提供的一种终端示意图；
图7为本发明实施例提供的一种基站示意图；
图8为本发明实施例提供的一种终端示意图。
具体实施方式
为了使本发明实施例的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施例作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
应理解，本发明实施例的技术方案可以应用于各种通信系统，例如：GSM(Global System of Mobile Communication，全球移动通讯)系统、CDMA(Code Division Multiple Access，码分多址)系统、WCDMA(Wideband Code Division Multiple Access，宽带码分多址)GPRS(General Packet Radio Service，通用分组无线业务)系统、LTE(Long Term Evolution，长期演进)系统、LTE FDD(Frequency Division Duplex，频分双工)系统、LTE TDD(Time Division Duplex，时分双工)、UMTS(Universal Mobile Telecommunication System，通用移动通信系统)、WiMAX(Worldwide Interoperability for Microwave Access，全球互联微波接入)通信系统，以及未来的5G通信系统等。
图1示例性示出了本发明实施例适用的一种系统架构示意图，如图1所示，本发明实施例适用的系统架构包括基站101，以及终端102、终端103和终端104，通过无线连接。
终端102、终端103和终端104中的任一个终端可以经RAN(Radio Access Network，无线接入网)与一个或多个核心网进行通信，终端可以指UE(User Equipment，用户设备)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、SIP(Session Initiation Protocol，会话启动协议)电话、WLL(Wireless Local Loop，无线本地环路)站、PDA(Personal Digital Assistant，个人数字处理)、具有无线通信功能的手 持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备等。
基站101可以是用于与终端进行通信的设备，例如，可以是GSM系统或CDMA中的BTS(Base Transceiver Station，基站)，也可以是WCDMA系统中的NB(NodeB，基站)，还可以是LTE系统中的eNB或eNodeB(Evolutional Node B，演进型基站)等。
波束赋形是一种基于天线阵列的信号预处理技术，波束赋形通过调整天线阵列中每个阵元的加权系数产生具有指向性的波束，从而能够获得明显的阵列增益。因此，波束赋形技术在扩大覆盖范围、改善边缘吞吐量以及干扰抑止等方面都有很大的优势。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图2所示，本发明实施例提供的一种大规模天线波束传输方法，包括：
步骤201、基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束。
步骤202、基站将主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息发送至终端。
步骤203、终端接收基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息，确定所述主下行发送波束和至少一个辅下行发送波束。
步骤204、基站确定与终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形。
步骤205、基站将第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至终端。
步骤206、终端接收基站发送的控制信号，根据控制信号中的第一波束赋形方式，确定接收信号的方式为通过第一波束赋形方式接收信号。
步骤207、基站通过第一波束赋形方式将信号通过数据信道发送至终端。
步骤208、终端通过第一波束赋形方式接收信号。
上述步骤201中，基站确定针对一个终端的主下行发送波束和至少一个辅下行发送波束，具体方式至少有以下几种：
方式一、基站通过向终端发送训练信号，来确定针对该终端的主下行发送波束和至少一个辅下行发送波束
训练过程：
1)、基站向终端发送下行波束训练信号。基站共有
Figure PCTCN2017087809-appb-000001
个候选的下行发送波束，每个下行波束对应一组波束赋形权值，第n个波束的发送波束赋形权值为
Figure PCTCN2017087809-appb-000002
其中K是波束赋形的天线振子数，可以小于基站的天线振子数。基站可以为每个候选的下行发送波束发射一个下行波束训练信号。例如对于
Figure PCTCN2017087809-appb-000003
个下行发送波束，基站可以发送
Figure PCTCN2017087809-appb-000004
个下行波束训练信号。这
Figure PCTCN2017087809-appb-000005
个下行波束训练信号之间可以TDM(Time Division Multiplexing，时分复用)、FDM(Frequency Division Multiplexing，频分复用)、CDM(Code Division Multiplexing，码分复用)，或者各种复用方式的组合。例如，在以OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用)为基础的系统中，
Figure PCTCN2017087809-appb-000006
个训练信号可以占用
Figure PCTCN2017087809-appb-000007
个OFDM符号，每个训练信号占用1个OFDM符号。
每个下行发送波束的训练信号用该波束对应的波束赋形权值赋形之后发出。后续描述过程中出现的“用一个波束传输”，“在一个波束上传输”，“采用一个波束传输”，“经过一个波束赋形传输”等的都是指将信号用波束对应的波束赋形权值赋形之后从物理天线上发出。假设一个资源单元上的待发送信号为s，则用第n个波束赋形之后的信号为：
y＝[y1 y2 … yK]T＝Wns，
其中yk将映射到天线振子k上发出。
波束训练信号是周期性发送，或者非周期性发送。
2)、终端接收基站发送的下行波束训练信号，通过对下行波束训练信号的测量，得到每个下行波束训练信号的信号强度信息。
终端将下行发送波束相关的信息上报给基站。相关的信息包括下行发送波束的标识，例如下行发送波束的编号。根据下行波束/波束训练信号的复用方式的不同，终端反馈的下行发送波束的信息可以不同。例如，下行波束训练信号在不同OFDM符号或者子帧上时分复用，终端测量并反馈下行时间信息。再例如，下行波束赋训练信号在不同频率资源复用，终端测量并反馈下行频率信息。下行发送波束相关的信息还可以进一步包括终端收到的下行发送波束训练信号强度信息，例如接收信号功率水平等。
3)、基站根据接收到的所述多个下行发送波束的信号强度信息，从所述多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束。
例如，基站将对应的信号强度最强的一个下行发送波束作为主下行发送波束，以及从除主下行发送波束之外的下行发送波束中选择M个作为辅下行发送波束，其中M大于或等于1。
通过上述步骤，即可实现确定出一个主下行发送波束和至少一个辅下行发送波束。
方式二、基站接收终端上报的推荐的下行发送波束信息，基于推荐的下行发送波束信息确定针对终端的主下行发送波束和至少一个辅下行发送波束
在方式一训练过程的步骤2)中，终端还可以根据得到每个下行波束训练信号的信号强度信息，选择推荐的下行发送波束。例如，终端可以选择训练信号接收功率最强的下行发送波束为推荐的下行发送波束。
然后终端将推荐的下行发送波束发送给基站，以及将这些推荐的下行发送波束对应的信号强度信息发送给基站，由基站从推荐的下行发送波束中确定一个主下行发送波束和至少一个辅下行发送波束。
并且，在这之后，终端针对每个推荐的下行发送波束，确定对应的下行接收波束(当然，也可以是针对所有的下行发送波束分别各自一个对应的下行接收波束，而不限于针对推荐的下行发送波束)。
并且，对于一个下行波束训练信号，终端还可以是分别尝试使用每个下行接收波束对其进行接收，选择接收信号功率最强的下行接收波束作为该下行发送波束对应的下行接收波束。
方式三、基站基于上下行信号的互易性，来确定针对该终端的主下行发送波束和至少一个辅下行发送波束
基站根据接收到的所述终端的数据信号和/或控制信号，确定多个上行接收波束的信号强度信息，根据确定的多个上行接收波束的信号强度信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束。
上下行信道互易性成立的系统中，基站对于同一个终端的上行接收波束和下行发送波束之间(具体地，是上行接收波束的权值和下行发送波束的权值之间)存在对应关系，并且该对应关系是基站已知的。基站接收终端发送的数据信号和/或控制信号，确定上行接收波束，然后基于信道互易性和上下行波束的对应关系，确定对应的下行发送波束(确定下行发送波束的权值)。
具体地，基站可以选择接收上行信号强度最高的上行接收波束对应的下行发送波束作为主下行发送波束，从其余的上行接收波束中选择强度最高的一个或者多个上行接收波束对应的下行发送波束作为辅下行发送波束。
方式四、基站基于CSI-RS信号反馈过程中终端反馈的信道状态信息，来确定针对该终端的主下行发送波束和至少一个辅下行发送波束
下面对本发明实施例提供的CSI-RS(Channel state information reference signals，信道状态信息参考信号)反馈过程如下：
1、CSI-RS信号发送过程
1)、基站确定至少2个下行CSI-RS发送波束。确定的方法可以有：
a)、基站根据上述训练过程中接收到的终端上报的下行发送波束相关信息，基于下行发送波束相关信息进行选择。例如，如果下行发送波束的相关信息中包括发送波束的强度信息，则基站可以选择强度最高的若干个波束作为下行CSI-RS发送波束。
b)、基站基于上下行信道的互易性选择下行CSI-RS发送波束。上下行信道互易性成立的系统中，基站对于同一个终端的上行接收波束和下行发送波束之间(上行接收波束的权值和下行发送波束的权值之间)存在对应关系，并且该对应关系是基站已知的。基站接收终端发送的数据信号和/或控制信号，确定上行接收波束，然后基于信道互易性和上下行波束的对应关系，确定对应的下行发送波束(确定下行发送波束的权值)。基站可以选择接收上行信号强度最高的若干个上行接收波束对应的下行发送波束作为下行CSI-RS发送波束。
2)、基站发送CSI-RS信号。基站在每个下行CSI-RS发送波束上发送一个CSI-RS信号。每个CSI-RS信号包括至少一个天线端口。在一个下行波束上发送CSI-RS是指该CSI-RS信号的每个天线端口的信号是经过该下行波束赋形之后从天线上发出。
3)、基站通知终端每个CSI-RS信号对应的下行发送波束相关信息。下行发送波束相关信息可以是该CSI-RS信号的下行发送波束的标识，如下行发送波束的编号。通知的方式包括：
a)、基站在每个CSI-RS的配置信息中包含下行发送波束的相关信息，例如下行发送波束的标识。CSI-RS的配置信息可以通过高层信令传输，也可以通过物理层信令，如DCI(下行控制信息)中传输。
b)、基站通过独立的信令过程(指与CSI-RS的配置过程独立)将下行CSI-RS发送波束的相关信息通知给终端。基站在每个CSI-RS的配置信息中进一步包含指示信息，指示每个CSI-RS采用哪个下行CSI-RS发送波束进行发送。例如，下行CSI-RS发送波束包括2个波束，则CSI-RS的配置信息中可以包含1比特指示其波束是下行CSI-RS发送波束0或者下行CSI-RS发送波束1发送。
4)、终端接收每个CSI-RS的配置信息，接收每个CSI-RS信号下行发送波束相关信息，确定每个CSI-RS的下行接收波束。
终端在训练过程中已经确定了每个下行发送波束对应的下行接收波束。终端从接收的信息中获知每个CSI-RS的下行发送波束，再根据下行发送波束和下行接收波束的对应关系，确定每个CSI-RS的下行接收波束。
5)、终端应用每个CSI-RS的下行接收波束接收CSI-RS信号，进行信道估计，并基于信道估计值计算信道状态信息。所述信道状态信息可以包括CQI(Channel Quality Indicator，信道质量指示)，PMI(Precoding Matrix Indicator，预编码矩阵指示)，RI(rank indication，秩指示)，以及其他的参数。
所述信道状态信息的计算，有如下可能的方式：
a)、每个CSI-RS独立计算，终端根据每个CSI-RS估计出的信道值，独立的计算信道状态信息。
b)、综合多个CSI-RS的信道估计值进行计算。例如，假设基站到终端的数据传输为多流空分复用，每个数据流从一个下行CSI-RS发送波束上发出，由于多个数据流之间存在干扰，终端在计算每个数据流的CQI、PMI、RI等信息时需要计算其他的数据流产生的干扰，因此需要综合多个CSI-RS的信道估计结果进行计算。
再例如，假设基站到终端的数据传输为多流分集传输，一个数据流从多个下行CSI-RS发送波束上发出，终端在计算该数据流的CQI、PMI、RI等信息时需要计算多个CSI-RS发送波束发送的合成结果，因此需要综合多个CSI-RS的信道估计结果进行计算。
2、CSI-RS反馈过程
方式一、CSI的反馈过程可以采用多CSI进程的方式进行(每个下行CSI-RS发送对应一个CSI进程)。
1)、基站为终端配置多个CSI进程。每个CSI进程与一个CSI-RS(CSI-RS发送过程中的多个CSI-RS中的一个)关联。关联的方式可以是在CSI进程的配置消息中包括一个CSI-RS的标识，该标识指向CSI-RS发送过程中所描述的一个CSI-RS。
2)、终端接收CSI进程配置信息，并且按照CSI进程的配置进行反馈。
其过程为，终端按照每个CSI进程配置信息确定其关联的CSI-RS信号，然后按照CSI-RS发送过程描述的方式确定该CSI-RS的下行接收波束，接收CSI-RS信号，计算信道状态信息。
3)、终端按照CSI进程配置信息向基站反馈信道状态信息。反馈的形式有：
a)、终端根据每个进程关联的CSI-RS信号的信道估计值，分别确定每个CSI-RS信号对应的信道状态信息，并将每个CSI-RS信号对应的信道状态信息反馈给基站。
b)、终端根据每个进程关联的每个CSI-RS信号的信道估计值，按照一定的准则选择其中的一个或者多个CSI-RS信号，分别确定并反馈选择的每个CSI-RS信号对应的信道状态信息，并将选择的每个CSI-RS信号的标识信息反馈给所述基站。选择的准则可以是接收信号最强，或者传输能力最强，或者信道容量最大，或者信道质量最佳等。
c)、终端根据每个CSI-RS进程关联的CSI-RS信号的信道估计值，确定综合的信道状态信息，并所述综合的信道状态信息反馈给基站。
方式二、CSI的反馈过程也可以采用单CSI进程的方式进行。
1)、基站为终端配置1个CSI进程。该CSI进程与多个CSI-RS(CSI-RS发送过程中的多个CSI-RS)关联。关联的方式可以是在CSI进程的配置消息中包括多个CSI-RS的标识，该标识指向CSI-RS发送过程中所描述的一个或者多个CSI-RS。
2)、终端接收CSI进程的配置信息，并且按照CSI进程的配置进行反馈。
其过程为，终端按照每个CSI进程的配置确定其关联的CSI-RS，然后按照CSI-RS发送过程描述的方式确定该CSI-RS的下行接收波束，接收CSI-RS，计算信道状态信息。
3)、终端按照CSI进程的配置向基站反馈信道状态信息。反馈的形式有：
a)、终端根据CSI进程关联的CSI-RS信号的信道估计值，分别确定每个CSI-RS信号对应的信道状态信息，并将每个CSI-RS信号对应的信道状态信息反馈给基站。
b)、终端根据CSI进程关联的所有CSI-RS信号的信道估计值，按照一定的准则选择其中的一个或者多个CSI-RS信号，分别确定并反馈选择的每个CSI-RS信号对应的信道状态信息，并将选择的每个CSI-RS信号的标识信息反馈给所述基站。选择的准则可以是接收信号最强，或者传输能力最强，或者信道容量最大，或者信道质量最佳等。
c)、终端根据CSI进程关联的CSI-RS信号的信道估计值，确定综合的信道状态信息，并所述综合的信道状态信息反馈给基站。
基站接收终端发送的针对每个CSI-RS信号确定的信道状态信息，根据信道状态信息，将信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束作为主下行波束，将除信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束之外的一个或多个下行CSI-RS发送波束，作为辅下行波束。
上述步骤202中，基站将主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息发送至终端。
上述步骤203中，终端接收基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息，确定所述主下行发送波束和至少一个辅下行发送波束。
上述步骤204中，基站确定与终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形。
其中，数据信道的信号可以是数据信号，也可以是CSI-RS信号，也可以是其他信号等。
具体地，第一波束赋形方式包括下列部分或全部：
1)、通过主下行发送波束对数据信道的信号进行波束赋形；
2)、通过辅下行发送波束对数据信道的信号进行波束赋形；
3)、通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形；
空分复用指的是多个数据在不同的下行发送波束上进行波束赋形发送。
4)、通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形。
分集指的是一个数据流在多个下行发送波束上进行波束赋形发送。
第一波束赋形方式在初始状态下可以指定，例如指定通过主下行发送波束对数据信道的信号进行波束赋形，或者指定通过一个或多个辅下行发送波束对数据信道的信号进行波束赋形，或者指定通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形，或者指定通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形，等等。
在后续信号的发送过程中，则可以对第一波束赋形方式进行更新，具体地：基站根据终端反馈的主下行发送波束对应的信道状态信息及至少一个辅下行发送波束对应的信道状态信息，更新所述第一波束赋形方式；或者基站在持续接收到所述终端发送的HARQ (Hybrid Automatic Repeat reQuest，混合自动重传请求)NACK(Negative Acknowledgement，非应答)反馈或收不到所述终端的反馈时，根据所述主下行发送波束和所述至少一个辅下行发送波束，更新所述第一波束赋形方式。
或者还可以使用下列方式来更新第一波束赋形方式：
终端接收基站发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
终端确定与CSI-RS信号下行发送波束对应的CSI-RS下行接收波束，并根据所述CSI-RS下行接收波束接收所述基站发送的CSI-RS信号；
终端根据接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后发送给基站；
基站根据得到的信道估计值，更新第一波束赋形方式。
或者，还可以基于终端反馈的信道状态信息进行选择。例如，基站接收终端上报的主下行发送波束的CSI进程(或者CSI-RS)和辅下行发送波束的CSI进程(CSI-RS)的信道质量信息(CQI)，选择CQI较高的波束进行数据传输。
或者，基站选择终端推荐的CSI进程(或者CSI-RS)对应的波束进行数据传输。
在一些情况下，为了提高数据传输的可靠性，可以选择主下行发送波束和辅下行发送波束进行发送分集传输，即同一个数据流同时从主下行发送波束和辅下行发送波束进行传输。
上述步骤205中，基站将第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至终端。
具体地，至少有以下两种方式可以实现将第一波束赋形方式发送至终端：
方式一
步骤A、基站为终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，且一个控制资源子集与一个下行发送波束关联；
步骤B、基站将所述N个控制资源子集的配置信息发送至所述终端；
步骤C、终端对所述N个控制资源子集进行监测；
步骤D、基站将第一波束赋形方式的指示信息携带于控制信号中，通过所述N个控制资源子集中的一个或多个控制资源子集发送至终端；
步骤E、终端在监测到所述N个控制资源子集中存在有效控制信道时，获取控制信号中的所述第一波束赋形方式，所述有效控制信道是指控制信道的控制信号是发送给所述终端，或是发送给所述终端所在终端组的。
方式二
步骤A、基站确定与终端之间的控制信道的控制信号对应的第二波束赋形方式，所述第二波束赋形方式为通过主下行发送波束和/或至少一个辅下行波束对控制信道的控制信号进行波束赋形；
具体地，第二波束赋形方式包括下列部分或全部：
1)、通过主下行发送波束对数据信道的信号进行波束赋形；
2)、通过辅下行发送波束对数据信道的信号进行波束赋形；
3)、通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形。
步骤B、基站将所述第一波束赋形方式的指示信息携带于控制信号中，经所述第二波束赋形方式对所述控制信号进行波束赋形后，通过控制信道发送至终端。
即基站通过第二波束赋形方式对控制信号进行波束赋形后，通过控制信道发送至终端，其中，控制信号中包含有终端接收基站通过数据信道发送的数据的波束赋形方式，具体地，控制信号中包含有第一波束赋形方式。
基站通过控制信道向终端发送包含数据信道传输的波束赋形方式的指示信息的控制信号。例如，控制信道中包含的关于数据信道传输的波束赋形方式的指示信息使用2个比特来表示，则可以根据表1所述的方式来表示。
表1
Figure PCTCN2017087809-appb-000008
上述步骤206中，终端接收基站发送的控制信号，根据控制信号中的第一波束赋形方式，确定接收信号的方式为通过第一波束赋形方式接收信号。
上述步骤207中，基站通过第一波束赋形方式将信号通过数据信道发送至终端。
上述步骤208中，终端通过第一波束赋形方式接收信号。
终端接收基站发送的信号。采用第一波束赋形方式进行接收。
可能的方式包括：
a)、如果基站通过主下行发送波束对数据信道的信号进行波束赋形，则终端用主下行发送波束对应的下行接收波束进行接收；
b)、如果基站通过辅下行发送波束对数据信道的信号进行波束赋形，则终端用辅下行发送波束对应的下行接收波束进行接收；
c)、如果基站通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形，则终端用主下行发送波束和辅下行发送波束对应的下行接收波束进行接收；
d)、如果基站通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形，则终端用主下行发送波束和辅下行发送波束对应的下行接收波束进行接收。
终端用确定的下行接收波束接收信号，并进行数据解调。
本发明实施例，通过上述步骤201～步骤208，实现了采用主下行发送波束和/或辅下行发送波束的方式对控制信号和数据信号进行发送，从而提高了信息传输的稳定性，并且提高了数据传输的效率。
本发明实施例，基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；基站确定与终端之间的数据信道的信号对应的第一波束赋形方式，将第一波束赋形方式携带于控制信号中，通过控制信道发送至终端，以使终端根据控制信号中的第一波束赋形方式接收基站通过数据信道发送的信号，其中，第一波束赋形方式为通过主下行发送波束和/或至少一个辅下行波束对所述数据信道的信号进行波束 赋形，由此可见，基站向终端发送控制信号和数据信号时，可以灵活选择波束赋形方式对信号进行波束赋形，提高了数据传输的效率，以及增强了数据传输的可靠性。
基于相同的发明构思，本发明实施例给出一种大规模天线波束传输方法，如图3所示，包括：
步骤301、基站为终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元；
步骤302、基站将所述N个控制资源子集的配置信息发送至终端，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；
步骤303、终端接收基站发送的N个控制资源子集的配置信息；
步骤304、基站在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号；
步骤305、终端接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号。
上述步骤305中，具体可以通过下列方式实现：
终端根据所述至少一个控制资源子集的下行发送波束指示信息，确定接收所述控制资源子集的下行接收波束；终端用所述下行接收波束接收所述控制资源子集的控制信号。
其中，基站为终端配置N个控制资源子集，一个控制资源子集包括多个用于控制信道传输的资源单元，且一个控制资源子集与一个下行发送波束关联。
控制资源子集之间可以是CDM，TDM，或者FDM复用。较佳的，控制资源子集之间是TDM复用。
一个控制资源子集配置的例子见图4。图4中包括2个控制资源子集，分别配置在不同的OFDM符号上。
本发明实施例，基站可以通过控制资源子集向终端发送控制控制信号，并且发送的时候可以是在一个控制资源子集上发送，也可以是在多个控制资源子集上发送，从而实现了灵活发送控制信号，提高了传输效率及稳定性。
基于相同的发明构思，本发明实施例还提供一种基站，如图5所示，包括：
处理单元501，用于从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；确定与终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
收发单元502，用于将所述主下行发送波束的配置信息和所述至少一个辅下行发送波束的配置信息发送至所述终端；将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端，以使所述终端根据所述控制信号中的所述第一波束赋形方式接收基站通过所述数据信道发送的信号。
可选地，所述收发单元502，具体用于：根据所述多个下行发送波束向所述终端发送训练信号，以使所述终端确定所述多个下行发送波束的信号强度信息并发送给所述基站；
所述处理单元501从多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束时，具体用于：根据所述多个下行发送波束通过所述收发单元502向 所述终端发送训练信号，以使所述终端确定所述多个下行发送波束的信号强度信息并发送给所述基站；根据所述收发单元502接收到的所述多个下行发送波束的信号强度信息，从所述多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
通过所述收发单元502接收所述终端上报的推荐的下行发送波束信息；基于所述推荐的下行发送波束信息确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
根据所述收发单元502接收到的所述终端的数据信号和/或控制信号，确定多个上行接收波束的信号强度信息；根据确定的多个上行接收波束的信号强度信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
从所述多个下行发送波束中选择至少一个下行发送波束，作为下行信道状态信息参考信号CSI-RS发送波束，并通过所述收发单元502使用所述下行CSI-RS发送波束向所述终端发送CSI-RS信号；通过所述收发单元502接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束。
可选地，所述处理单元501通过所述收发单元502接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束时，具体用于：
通过所述收发单元502接收所述终端发送的针对每个CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，将所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束作为所述主下行波束，将除所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束之外的一个或多个下行CSI-RS发送波束，作为所述至少一个辅下行波束。
可选地，所述收发单元502将所述第一波束赋形方式的指示信息携带于控制信号中，使用所述控制信道发送至所述终端时，具体用于：
为所述终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，且一个控制资源子集与一个下行发送波束关联；
将所述N个控制资源子集的配置信息发送至所述终端，以使所述终端对所述N个控制资源子集进行监测；
将所述第一波束赋形方式的指示信息携带于所述控制信号中，通过所述N个控制资源子集中的一个或多个控制资源子集发送至所述终端，以使所述终端在监测到所述N个控制资源子集中存在有效控制信道时，获取所述控制信号中的所述第一波束赋形方式，所述有效控制信道是指控制信道的控制信号是发送给所述终端，或是发送给所述终端所在终端组的。
可选地，所述处理单元501，还用于：
在通过所述收发单元502将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端之前，确定与所述终端之间的控制信道的控制信号对应的第二波束赋形方式，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形；
所述收发单元502将所述第一波束赋形方式的指示信息携带于控制信号中，使用所述 控制信道发送至所述终端时，具体用于：
将所述第一波束赋形方式的指示信息携带于控制信号中，经所述第二波束赋形方式对所述控制信号进行波束赋形后，通过所述控制信道发送至所述终端。
可选地，所述处理单元501，还用于：
根据通过所述收发单元502接收到的所述终端反馈的所述主下行发送波束对应的信道状态信息及所述至少一个辅下行发送波束对应的信道状态信息，更新所述第一波束赋形方式；或者
在通过所述收发单元502持续接收到所述终端发送的混合自动重传请求HARQ非应答NACK反馈或收不到所述终端的反馈时，根据所述主下行发送波束和所述至少一个辅下行发送波束，更新所述第一波束赋形方式。
可选地，所述收发单元502，还用于：向所述终端发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；用所述CSI-RS信号下行发送波束发送CSI-RS信号；接收所述终端基于所述CSI-RS信号进行测量得到的信道状态信息。
可选地，所述收发单元502，还用于：向所述终端发送CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；接收所述终端根据与所述终端中的CSI进程关联的一个或者多个CSI-RS信号进行测量得到的信道状态信息。
可选地，所述第一波束赋形方式包括下列部分或全部：
通过主下行发送波束对数据信道的信号进行波束赋形、通过辅下行发送波束对数据信道的信号进行波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形。
可选地，所述第二波束赋形方式包括下列部分或全部：
通过主下行发送波束对控制信道的控制信号进行波束赋形、通过辅下行发送波束对控制信道的控制信号进行波束赋形、通过主下行发送波束和辅下行波束进行对控制信道的控制信号进行分集波束赋形。
本发明实施例，基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；基站确定与终端之间的数据信道的信号对应的第一波束赋形方式，将第一波束赋形方式携带于控制信号中，通过控制信道发送至终端，以使终端根据控制信号中的第一波束赋形方式接收基站通过数据信道发送的信号，其中，第一波束赋形方式为通过主下行发送波束和/或至少一个辅下行波束对所述数据信道的信号进行波束赋形，由此可见，基站向终端发送控制信号和数据信号时，可以灵活选择波束赋形方式对信号进行波束赋形，提高了数据传输的效率，以及增强了数据传输的可靠性。
基于相同的发明构思，本发明实施例还提供一种终端，如图6所示，包括：
收发单元602，用于接收基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息；接收所述基站发送的控制信号，所述控制信号中包含所述基站与终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
处理单元601，用于根据所述收发单元602接收的所述基站发送的主下行发送波束的 配置信息和至少一个辅下行发送波束的配置信息，确定所述主下行发送波束和至少一个辅下行发送波束；根据所述第一波束赋形方式通过所述收发单元602接收所述基站通过所述数据信道发送的信号。
可选地，所述收发单元602接收基站发送的控制信号时，具体用于：
接收基站通过与所述终端之间的控制信道发送的经第二波束赋形方式波束赋形的所述控制信号，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形。
可选地，所述收发单元602，还用于：接收所述基站发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
所述处理单元601，还用于：确定与所述CSI-RS信号下行发送波束对应的CSI-RS下行接收波束，并根据所述CSI-RS下行接收波束通过所述收发单元602接收所述基站发送的CSI-RS信号；根据通过所述收发单元602接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后通过所述收发单元602发送给所述基站。
可选地，所述收发单元602，还用于：接收所述基站发送的CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；
根据所述关联指示信息，确定每个进程关联的一个或者多个CSI-RS信号；
所述处理单元601根据通过所述收发单元602接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后通过所述收发单元602发送给所述基站时，具体用于：根据所述收发单元602接收到的CSI-RS信号，得到每个进程关联的一个或者多个CSI-RS信号的信道估计值；根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并反馈通过所述收发单元602给所述基站。
可选地，所述处理单元601根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并通过所述收发单元602反馈给所述基站时，具体用于：
根据每个进程关联的每个CSI-RS信号的信道估计值，分别确定每个CSI-RS信号对应的信道状态信息，并将每个CSI-RS信号对应的信道状态信息反馈给基站；或者
根据每个CSI-RS进程关联的CSI-RS信号的信道估计值，确定综合的信道状态信息，并所述综合的信道状态信息反馈给基站；或者
根据每个进程关联的每个CSI-RS信号的信道估计值，选择其中的一个或者多个CSI-RS信号，分别确定并反馈选择的每个CSI-RS信号对应的信道状态信息，并将选择的每个CSI-RS信号的标识信息反馈给所述基站。
可选地，所述处理单元601根据所述第一波束赋形方式通过所述收发单元602接收所述基站通过所述数据信道发送的信号时，具体用于：
若所述第一波束赋形方式为数据信道采用主下行发送波束传输，则采用主下行发送波束对应的下行接收波束通过所述收发单元602进行接收；或
若所述第一波束赋形方式为数据信道采用辅下行发送波束传输，则采用辅下行发送波束对应的下行接收波束通过所述收发单元602进行接收；或
若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行空分复用传输，则采用主下行发送波束和辅下行发送波束分别对应的下行接收波束通过所述收发单元602进行接收；或
若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行分集传输，则采用主下行发送波束和辅下行发送波束分别对应的下行接收波束通过所述收发单元602进行接收。
本发明实施例，基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；基站确定与终端之间的数据信道的信号对应的第一波束赋形方式，将第一波束赋形方式携带于控制信号中，通过控制信道发送至终端，以使终端根据控制信号中的第一波束赋形方式接收基站通过数据信道发送的信号，其中，第一波束赋形方式为通过主下行发送波束和/或至少一个辅下行波束对所述数据信道的信号进行波束赋形，由此可见，基站向终端发送控制信号和数据信号时，可以灵活选择波束赋形方式对信号进行波束赋形，提高了数据传输的效率，以及增强了数据传输的可靠性。
基于相同的发明构思，本发明实施例还提供一种基站，如图7所示，包括：
处理单元701，用于为终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元；
收发单元702，用于将所述N个控制资源子集的配置信息发送至所述终端，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号。
可选地，所述收发单元702在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号时，具体用于：在所述N个控制资源子集内的至少一个控制资源子集对应的下行发送波束向所述终端发送所述控制信号。
本发明实施例，基站可以通过控制资源子集向终端发送控制控制信号，并且发送的时候可以是在一个控制资源子集上发送，也可以是在多个控制资源子集上发送，从而实现了灵活发送控制信号，提高了传输效率及稳定性。
基于相同的发明构思，本发明实施例还提供一种终端，如图8所示，包括：
收发单元802，用于接收基站发送的N个控制资源子集的配置信息，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号。
可选地，所述终端还包括处理单元801，该处理单元801用于：根据所述至少一个控制资源子集对应的下行发送波束的指示信息，确定接收所述控制资源子集的下行接收波束；
所述收发单元802接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号时，具体用于：用所述处理单元801确定的所述下行接收波束在所述控制资源子集内接收控制信号。
本发明实施例，基站可以通过控制资源子集向终端发送控制控制信号，并且发送的时候可以是在一个控制资源子集上发送，也可以是在多个控制资源子集上发送，从而实现了灵活发送控制信号，提高了传输效率及稳定性。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的 处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (44)

  1. 一种大规模天线波束传输方法，其特征在于，包括：
    基站从多个下行发送波束中确定针对终端的主下行发送波束和至少一个辅下行发送波束；
    所述基站将所述主下行发送波束的配置信息和所述至少一个辅下行发送波束的配置信息发送至所述终端；
    所述基站确定与所述终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
    所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端，以使所述终端根据所述第一波束赋形方式接收所述基站通过所述数据信道发送的信号。
  2. 如权利要求1所述的方法，其特征在于，基站从多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束，包括：
    所述基站根据所述多个下行发送波束向所述终端发送训练信号，以使所述终端确定所述多个下行发送波束的信号强度信息并发送给所述基站；所述基站根据接收到的所述多个下行发送波束的信号强度信息，从所述多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
    所述基站接收所述终端上报的推荐的下行发送波束信息，基于所述推荐的下行发送波束信息确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
    所述基站根据接收到的所述终端的数据信号和/或控制信号，确定多个上行接收波束的信号强度信息；所述基站根据确定的多个上行接收波束的信号强度信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
    所述基站从所述多个下行发送波束中选择至少一个下行发送波束，作为下行信道状态信息参考信号CSI-RS发送波束，并使用所述下行CSI-RS发送波束向所述终端发送CSI-RS信号；所述基站接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束。
  3. 如权利要求2所述的方法，其特征在于，所述基站接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束，包括：
    所述基站接收所述终端发送的针对每个CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，将所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束作为所述主下行波束，将除所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束之外的一个或多个下行CSI-RS发送波束，作为所述至少一个辅下行波束。
  4. 如权利要求1所述的方法，其特征在于，所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，通过所述控制信道发送至所述终端，包括：
    所述基站为所述终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于 控制信道传输的资源单元，且一个控制资源子集与一个下行发送波束关联；
    所述基站将所述N个控制资源子集的配置信息发送至所述终端，以使所述终端对所述N个控制资源子集进行监测；
    所述基站将所述第一波束赋形方式的指示信息携带于所述控制信号中，通过所述N个控制资源子集中的一个或多个控制资源子集发送至所述终端，以使所述终端在监测到所述N个控制资源子集中存在有效控制信道时，获取所述控制信号中的所述第一波束赋形方式的指示信息，所述有效控制信道是指控制信道的控制信号是发送给所述终端，或是发送给所述终端所在终端组的。
  5. 如权利要求1所述的方法，其特征在于，所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端之前，还包括：
    所述基站确定与所述终端之间的控制信道的控制信号对应的第二波束赋形方式，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形；
    所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端，包括：
    所述基站将所述第一波束赋形方式的指示信息携带于控制信号中，经所述第二波束赋形方式对所述控制信号进行波束赋形后，通过所述控制信道发送至所述终端。
  6. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    所述基站根据所述终端反馈的所述主下行发送波束对应的信道状态信息及所述至少一个辅下行发送波束对应的信道状态信息，更新所述第一波束赋形方式；或者
    所述基站在持续接收到所述终端发送的混合自动重传请求HARQ非应答NACK反馈或收不到所述终端的反馈时，根据所述主下行发送波束和所述至少一个辅下行发送波束，更新所述第一波束赋形方式。
  7. 如权利要求6所述的方法，其特征在于，所述方法还包括：
    所述基站向所述终端发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
    所述基站用所述CSI-RS信号下行发送波束发送CSI-RS信号；
    所述基站接收所述终端基于所述CSI-RS信号进行测量得到的信道状态信息。
  8. 如权利要求7所述的方法，其特征在于，所述方法还包括：
    所述基站向所述终端发送CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；
    所述基站接收所述终端根据与所述CSI进程关联的一个或者多个CSI-RS信号进行测量得到的信道状态信息。
  9. 如权利要求1至8中任一项所述的方法，其特征在于，所述第一波束赋形方式包括下列部分或全部：
    通过主下行发送波束对数据信道的信号进行波束赋形、通过辅下行发送波束对数据信道的信号进行波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形。
  10. 如权利要求5中所述的方法，其特征在于，所述第二波束赋形方式包括下列部分或全部：
    通过主下行发送波束对控制信道的控制信号进行波束赋形、通过辅下行发送波束对控制信道的控制信号进行波束赋形、通过主下行发送波束和辅下行波束进行对控制信道的控制信号进行分集波束赋形。
  11. 一种大规模天线波束传输方法，其特征在于，包括：
    终端接收基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息，确定所述主下行发送波束和至少一个辅下行发送波束；
    所述终端接收所述基站发送的控制信号，所述控制信号中包含所述基站与所述终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
    所述终端根据所述第一波束赋形方式接收所述基站通过所述数据信道发送的信号。
  12. 如权利要求11所述的方法，其特征在于，所述终端接收所述基站发送的控制信号，包括：
    所述终端接收所述基站通过与所述终端之间的控制信道发送的经第二波束赋形方式波束赋形的所述控制信号，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形。
  13. 如权利要求11所述的方法，其特征在于，所述方法还包括：
    所述终端接收所述基站发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
    所述终端确定与所述CSI-RS信号下行发送波束对应的CSI-RS信号下行接收波束，并根据所述CSI-RS信号下行接收波束接收所述基站发送的CSI-RS信号；
    所述终端根据接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后发送给所述基站。
  14. 如权利要求13所述的方法，其特征在于，所述方法还包括：
    所述终端接收所述基站发送的CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；
    所述终端根据所述关联指示信息，确定每个进程关联的一个或者多个CSI-RS信号；
    所述终端根据接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后发送给所述基站，包括：
    所述终端根据接收到的CSI-RS信号，得到每个进程关联的一个或者多个CSI-RS信号的信道估计值；
    所述终端根据每个CSI进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并反馈给所述基站。
  15. 如权利要求14所述的方法，其特征在于，所述终端根据每个CSI进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并反馈给所述基站，包括：
    所述终端根据每个进程关联的每个CSI-RS信号的信道估计值，分别确定每个CSI-RS信号对应的信道状态信息，并将每个CSI-RS信号对应的信道状态信息反馈给基站；或者
    所述终端根据每个CSI进程关联的CSI-RS信号的信道估计值，确定综合的信道状态 信息，并所述综合的信道状态信息反馈给基站；或者
    所述终端根据每个进程关联的每个CSI-RS信号的信道估计值，选择其中的一个或者多个CSI-RS信号，分别确定并反馈选择的每个CSI-RS信号对应的信道状态信息，并将选择的每个CSI-RS信号的标识信息反馈给所述基站。
  16. 如权利要求11至15任一项所述的方法，其特征在于，所述终端根据所述第一波束赋形方式接收所述基站发送所述数据信道的信号，包括：
    若所述第一波束赋形方式为数据信道采用主下行发送波束传输，则所述终端用主下行发送波束对应的下行接收波束进行接收；或
    若所述第一波束赋形方式为数据信道采用辅下行发送波束传输，则所述终端用辅下行发送波束对应的下行接收波束进行接收；或
    若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行空分复用传输，则所述终端用主下行发送波束和辅下行发送波束分别对应的下行接收波束进行接收；或
    若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行分集传输，则所述终端用主下行发送波束和辅下行发送波束分别对应的下行接收波束进行接收。
  17. 一种大规模天线波束传输方法，其特征在于，包括：
    基站为终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元；
    所述基站将所述N个控制资源子集的配置信息发送至所述终端，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；
    所述基站在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号。
  18. 如权利要求17所述的方法，其特征在于，所述基站在所述N个控制资源子集中的一个或多个控制资源子集内，向所述终端发送控制信号，包括：
    所述基站在所述N个控制资源子集内的至少一个控制资源子集对应的下行发送波束向所述终端发送所述控制信号。
  19. 一种大规模天线波束传输方法，其特征在于，包括：
    终端接收基站发送的N个控制资源子集的配置信息，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；
    所述终端接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号。
  20. 如权利要求19所述的方法，其特征在于，所述终端接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号，包括：
    所述终端根据所述至少一个控制资源子集对应的下行发送波束的指示信息，确定接收所述控制资源子集的下行接收波束；
    所述终端用所述下行接收波束在所述控制资源子集内接收控制信号。
  21. 一种基站，其特征在于，包括：
    处理单元，用于从多个下行发送波束中确定针对终端的主下行发送波束和至少一个 辅下行发送波束；确定与所述终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
    收发单元，用于将所述主下行发送波束的配置信息和所述至少一个辅下行发送波束的配置信息发送至所述终端；将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端，以使所述终端根据所述第一波束赋形方式接收基站通过所述数据信道发送的信号。
  22. 如权利要求21所述的基站，其特征在于，所述处理单元从多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束时，具体用于：
    根据所述多个下行发送波束通过所述收发单元向所述终端发送训练信号，以使所述终端确定所述多个下行发送波束的信号强度信息并发送给所述基站；根据所述收发单元接收到的所述多个下行发送波束的信号强度信息，从所述多个下行发送波束中确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
    通过所述收发单元接收所述终端上报的推荐的下行发送波束信息；基于所述推荐的下行发送波束信息确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
    根据所述收发单元接收到的所述终端的数据信号和/或控制信号，确定多个上行接收波束的信号强度信息；根据确定的多个上行接收波束的信号强度信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束；或者
    从所述多个下行发送波束中选择至少一个下行发送波束，作为下行信道状态信息参考信号CSI-RS发送波束，并通过所述收发单元使用所述下行CSI-RS发送波束向所述终端发送CSI-RS信号；通过所述收发单元接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束。
  23. 如权利要求22所述的基站，其特征在于，所述处理单元通过所述收发单元接收所述终端发送的针对所述CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，确定针对所述终端的主下行发送波束和至少一个辅下行发送波束时，具体用于：
    通过所述收发单元接收所述终端发送的针对每个CSI-RS信号确定的信道状态信息，并根据所述信道状态信息，将所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束作为所述主下行波束，将除所述信道状态信息中的信道质量最佳的CSI-RS信号对应的下行CSI-RS发送波束之外的一个或多个下行CSI-RS发送波束，作为所述至少一个辅下行波束。
  24. 如权利要求21所述的基站，其特征在于，所述收发单元将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端时，具体用于：
    为所述终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，且一个控制资源子集与一个下行发送波束关联；
    将所述N个控制资源子集的配置信息发送至所述终端，以使所述终端对所述N个控制资源子集进行监测；
    将所述第一波束赋形方式的指示信息携带于所述控制信号中，通过所述N个控制资源子集中的一个或多个控制资源子集发送至所述终端，以使所述终端在监测到所述N个控制 资源子集中存在有效控制信道时，获取所述控制信号中的所述第一波束赋形方式的指示信息，所述有效控制信道是指控制信道的控制信号是发送给所述终端，或是发送给所述终端所在终端组的。
  25. 如权利要求21所述的基站，其特征在于，所述处理单元，还用于：
    在通过所述收发单元将所述第一波束赋形方式的指示信息携带于控制信号中，通过控制信道发送至所述终端之前，确定与所述终端之间的控制信道的控制信号对应的第二波束赋形方式，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形；
    所述收发单元将所述第一波束赋形方式的指示信息携带于控制信号中，通过所述控制信道发送至所述终端时，具体用于：
    将所述第一波束赋形方式的指示信息携带于控制信号中，经所述第二波束赋形方式对所述控制信号进行波束赋形后，通过所述控制信道发送至所述终端。
  26. 如权利要求21所述的基站，其特征在于，所述处理单元，还用于：
    根据通过所述收发单元接收到的所述终端反馈的所述主下行发送波束对应的信道状态信息及所述至少一个辅下行发送波束对应的信道状态信息，更新所述第一波束赋形方式；或者
    在通过所述收发单元持续接收到所述终端发送的混合自动重传请求HARQ非应答NACK反馈或收不到所述终端的反馈时，根据所述主下行发送波束和所述至少一个辅下行发送波束，更新所述第一波束赋形方式。
  27. 如权利要求26所述的基站，其特征在于，所述收发单元，还用于：
    向所述终端发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
    用所述CSI-RS信号下行发送波束发送CSI-RS信号；
    接收所述终端基于所述CSI-RS信号进行测量得到的信道状态信息。
  28. 如权利要求27所述的基站，其特征在于，所述收发单元，还用于：
    向所述终端发送CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；
    接收所述终端根据与所述CSI进程关联的一个或者多个CSI-RS信号进行测量得到的信道状态信息。
  29. 如权利要求23至28中任一项所述的基站，其特征在于，所述第一波束赋形方式包括下列部分或全部：
    通过主下行发送波束对数据信道的信号进行波束赋形、通过辅下行发送波束对数据信道的信号进行波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行空分复用波束赋形、通过主下行发送波束和辅下行波束对数据信道的信号进行分集波束赋形。
  30. 如权利要求27中所述的基站，其特征在于，所述第二波束赋形方式包括下列部分或全部：
    通过主下行发送波束对控制信道的控制信号进行波束赋形、通过辅下行发送波束对控制信道的控制信号进行波束赋形、通过主下行发送波束和辅下行波束进行对控制信道 的控制信号进行分集波束赋形。
  31. 一种终端，其特征在于，包括：
    收发单元，用于接收基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息；接收所述基站发送的控制信号，所述控制信号中包含所述基站与终端之间的数据信道的信号对应的第一波束赋形方式，所述第一波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述数据信道的信号进行波束赋形；
    处理单元，用于根据所述收发单元接收的所述基站发送的主下行发送波束的配置信息和至少一个辅下行发送波束的配置信息，确定所述主下行发送波束和至少一个辅下行发送波束；根据所述第一波束赋形方式通过所述收发单元接收所述基站通过所述数据信道发送的信号。
  32. 如权利要求31所述的终端，其特征在于，所述收发单元接收所述基站发送的控制信号时，具体用于：
    接收所述基站通过与所述终端之间的控制信道发送的经第二波束赋形方式波束赋形的所述控制信号，所述第二波束赋形方式为通过所述主下行发送波束和/或所述至少一个辅下行波束对所述控制信道的控制信号进行波束赋形。
  33. 如权利要求31所述的终端，其特征在于，所述收发单元，还用于：接收所述基站发送的CSI-RS信号配置信息，所述CSI-RS信号配置信息中包含CSI-RS信号下行发送波束的配置信息，所述CSI-RS信号下行发送波束为所述主下行发送波束和所述至少一个辅下行发送波束中的一个；
    所述处理单元，还用于：确定与所述CSI-RS信号下行发送波束对应的CSI-RS下行接收波束，并根据所述CSI-RS下行接收波束通过所述收发单元接收所述基站发送的CSI-RS信号；根据通过所述收发单元接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后通过所述收发单元发送给所述基站。
  34. 如权利要求33所述的终端，其特征在于，所述收发单元，还用于：接收所述基站发送的CSI进程配置信息，所述CSI进程配置信息中包括一个或者多个CSI-RS信号的关联指示信息；根据所述关联指示信息，确定每个进程关联的一个或者多个CSI-RS信号；
    所述处理单元根据所述收发单元接收到的CSI-RS信号得到信道估计值，并根据所述信道估计值得到信道状态信息后通过所述收发单元发送给所述基站时，具体用于：根据所述收发单元接收到的CSI-RS信号，得到每个进程关联的一个或者多个CSI-RS信号的信道估计值；根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并通过所述收发单元反馈给所述基站。
  35. 如权利要求34所述的终端，其特征在于，所述处理单元根据每个进程关联的一个或者多个CSI-RS信号的信道估计值，确定信道状态信息并通过所述收发单元反馈给所述基站时，具体用于：
    根据每个进程关联的每个CSI-RS信号的信道估计值，分别确定每个CSI-RS信号对应的信道状态信息，并将每个CSI-RS信号对应的信道状态信息反馈给基站；或者
    根据每个CSI进程关联的CSI-RS信号的信道估计值，确定综合的信道状态信息，并所述综合的信道状态信息反馈给基站；或者
    根据每个进程关联的每个CSI-RS信号的信道估计值，选择其中的一个或者多个 CSI-RS信号，分别确定并反馈选择的每个CSI-RS信号对应的信道状态信息，并将选择的每个CSI-RS信号的标识信息反馈给所述基站。
  36. 如权利要求31至35任一项所述的终端，其特征在于，所述处理单元根据所述第一波束赋形方式通过所述收发单元接收所述基站通过所述数据信道发送的信号时，具体用于：
    若所述第一波束赋形方式为数据信道采用主下行发送波束传输，则采用主下行发送波束对应的下行接收波束通过所述收发单元进行接收；或
    若所述第一波束赋形方式为数据信道采用辅下行发送波束传输，则采用辅下行发送波束对应的下行接收波束通过所述收发单元进行接收；或
    若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行空分复用传输，则采用主下行发送波束和辅下行发送波束分别对应的下行接收波束通过所述收发单元进行接收；或
    若所述第一波束赋形方式为数据信道采用主下行发送波束和辅下行波束进行分集传输，则采用主下行发送波束和辅下行发送波束分别对应的下行接收波束通过所述收发单元进行接收。
  37. 一种基站，其特征在于，包括：
    处理单元，用于为终端配置N个控制资源子集，其中，一个控制资源子集包括多个用于控制信道传输的资源单元；
    收发单元，用于将所述N个控制资源子集的配置信息发送至所述终端，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号。
  38. 如权利要求37所述的基站，其特征在于，所述收发单元在所述N个控制资源子集中的至少一个控制资源子集内，向所述终端发送控制信号时，具体用于：在所述N个控制资源子集内的至少一个控制资源子集对应的下行发送波束向所述终端发送所述控制信号。
  39. 一种终端，其特征在于，包括：
    收发单元，用于接收基站发送的N个控制资源子集的配置信息，其中，一个控制资源子集包括多个用于控制信道传输的资源单元，所述配置信息中包括每个控制资源子集对应的下行发送波束的指示信息；接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号。
  40. 如权利要求39所述的终端，其特征在于，所述终端还包括处理单元，所述处理单元用于：根据所述至少一个控制资源子集对应的下行发送波束的指示信息，确定接收所述控制资源子集的下行接收波束；
    所述收发单元接收所述基站通过所述N个控制资源子集中的至少一个控制资源子集内发送的控制信号时，具体用于：用所述处理单元确定的所述下行接收波束在所述控制资源子集内接收控制信号。
  41. 一种基站，其特征在于，所述基站包括存储器、处理器和收发机；其中，
    所述存储器用于存储计算机可读程序；
    所述处理器通过运行所述存储器中的程序，以完成如权利要求1至10任一所述的方法；
    所述收发机用于在所述处理器的控制下接收和发送数据。
  42. 一种终端，其特征在于，所述终端包括存储器、处理器和收发机；其中，
    所述存储器用于存储计算机可读程序；
    所述处理器通过运行所述存储器中的程序，以完成如权利要求11至16任一所述的方法；
    所述收发机用于在所述处理器的控制下接收和发送数据。
  43. 一种基站，其特征在于，所述基站包括存储器、处理器和收发机；其中，
    所述存储器用于存储计算机可读程序；
    所述处理器通过运行所述存储器中的程序，以完成如权利要求17或18任一所述的方法；
    所述收发机用于在所述处理器的控制下接收和发送数据。
  44. 一种终端，其特征在于，所述终端包括存储器、处理器和收发机；其中，
    所述存储器用于存储计算机可读程序；
    所述处理器通过运行所述存储器中的程序，以完成如权利要求19或20任一所述的方法；
    所述收发机用于在所述处理器的控制下接收和发送数据。
PCT/CN2017/087809 2016-09-30 2017-06-09 一种大规模天线波束传输方法及基站、终端 Ceased WO2018059005A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610875801.1A CN107896123B (zh) 2016-09-30 2016-09-30 一种大规模天线波束传输方法及基站、终端
CN201610875801.1 2016-09-30

Publications (1)

Publication Number Publication Date
WO2018059005A1 true WO2018059005A1 (zh) 2018-04-05

Family

ID=61763096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/087809 Ceased WO2018059005A1 (zh) 2016-09-30 2017-06-09 一种大规模天线波束传输方法及基站、终端

Country Status (3)

Country Link
CN (1) CN107896123B (zh)
TW (1) TWI757313B (zh)
WO (1) WO2018059005A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112953654A (zh) * 2019-12-11 2021-06-11 中国移动通信有限公司研究院 一种多通道天线的测试方法、装置、系统及介质
US20210184733A1 (en) * 2018-09-27 2021-06-17 Sony Corporation Electronic device, communication method and storage medium
TWI837199B (zh) * 2018-10-24 2024-04-01 美商高通公司 利用補充上行鏈路的波束故障恢復
WO2025183851A1 (en) * 2024-02-29 2025-09-04 Qualcomm Incorporated Beam combining in distributed antenna arrays

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3813450B1 (en) * 2018-07-06 2025-09-03 Beijing Xiaomi Mobile Software Co., Ltd. Method and apparatus for recognizing downlink transmission
KR102553888B1 (ko) * 2018-09-13 2023-07-11 삼성전자주식회사 빔을 제어하는 방법 및 그 전자 장치
TWI680653B (zh) * 2018-11-29 2019-12-21 中磊電子股份有限公司 多基地台協調系統及其通道校正方法
US11057782B2 (en) 2018-12-18 2021-07-06 Sercomm Corporation Multi-cell coordination system and channel calibration method thereof
BR112021013120A2 (pt) * 2019-01-08 2021-09-14 Beijing Xiaomi Mobile Software Co., Ltd. Método e dispositivo de recebimento de dados de downlink, método e dispositivo de envio de dados de downlink e meio de armazenamento

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281643A (zh) * 2010-06-12 2011-12-14 普天信息技术研究院有限公司 同一基站控制多小区系统分配下行资源的方法
US20130051302A1 (en) * 2011-08-24 2013-02-28 Samsung Electronics Co. Ltd. Apparatus and method for selecting beam in wireless communication system
WO2013131401A1 (zh) * 2012-03-09 2013-09-12 中兴通讯股份有限公司 信道状态信息的处理方法、基站和终端
CN103974272A (zh) * 2013-02-06 2014-08-06 中兴通讯股份有限公司 获取波束间干扰关系的方法及系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944896A1 (en) * 2007-01-09 2008-07-16 Matsushita Electric Industrial Co., Ltd. Configuration of control channels in a mobile communication system
US8582527B2 (en) * 2011-07-01 2013-11-12 Ofinno Technologies, Llc Hybrid automatic repeat request in multicarrier systems
CN106471751A (zh) * 2014-08-15 2017-03-01 富士通株式会社 资源配置方法、装置以及通信系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281643A (zh) * 2010-06-12 2011-12-14 普天信息技术研究院有限公司 同一基站控制多小区系统分配下行资源的方法
US20130051302A1 (en) * 2011-08-24 2013-02-28 Samsung Electronics Co. Ltd. Apparatus and method for selecting beam in wireless communication system
WO2013131401A1 (zh) * 2012-03-09 2013-09-12 中兴通讯股份有限公司 信道状态信息的处理方法、基站和终端
CN103974272A (zh) * 2013-02-06 2014-08-06 中兴通讯股份有限公司 获取波束间干扰关系的方法及系统

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210184733A1 (en) * 2018-09-27 2021-06-17 Sony Corporation Electronic device, communication method and storage medium
US11722183B2 (en) * 2018-09-27 2023-08-08 Sony Corporation Electronic device, communication method and storage medium
US20230361817A1 (en) * 2018-09-27 2023-11-09 Sony Group Corporation Electronic device, communication method and storage medium
US12308902B2 (en) * 2018-09-27 2025-05-20 Sony Group Corporation Electronic device, communication method and storage medium
TWI837199B (zh) * 2018-10-24 2024-04-01 美商高通公司 利用補充上行鏈路的波束故障恢復
CN112953654A (zh) * 2019-12-11 2021-06-11 中国移动通信有限公司研究院 一种多通道天线的测试方法、装置、系统及介质
CN112953654B (zh) * 2019-12-11 2023-01-13 中国移动通信有限公司研究院 一种多通道天线的测试方法、装置、系统及介质
WO2025183851A1 (en) * 2024-02-29 2025-09-04 Qualcomm Incorporated Beam combining in distributed antenna arrays

Also Published As

Publication number Publication date
CN107896123B (zh) 2021-03-02
CN107896123A (zh) 2018-04-10
TW201815089A (zh) 2018-04-16
TWI757313B (zh) 2022-03-11

Similar Documents

Publication Publication Date Title
US11296766B2 (en) Method for reporting channel state information in wireless communication system and device therefor
US12052199B2 (en) CSI feedback for data transmission over multiple transmission points
TWI757313B (zh) 一種大規模天線波束傳輸方法及基地台、終端
KR102083951B1 (ko) 무선 통신 시스템에서 상향링크 채널을 송수신하는 방법 및 이를 위한 장치
CN110574314B (zh) 在无线通信系统中报告信道状态信息的方法及其设备
JP7003111B2 (ja) 高度ｃｓｉフィードバックオーバヘッド低減のための構成可能コードブック
US20200267571A1 (en) Method for transmitting and receiving data on basis of qcl in wireless communication system, and device therefor
CN110663201B (zh) 用于用户设备以及发送和接收点的波束管理过程
US20180254813A1 (en) Progressive advanced csi feedback
JP2020511834A (ja) 無線通信システムにおけるビーム復旧を行う方法、及びこのための装置
TWI746711B (zh) 傳輸信號的方法、終端設備和網絡設備
EP3496292A1 (en) Method and device for use in measurement and feedback of channel state information
US20200007213A1 (en) Method of csi reporting
US20200366388A1 (en) Wireless communication method, user equipment, and base station
CN110050497A (zh) 用于无线通信系统中的下行链路信道接收的方法及其装置
CN110268637A (zh) Srs发送的用户设备和方法
WO2012044236A9 (en) Method and arrangement in a wireless communication system
CN110663199A (zh) 用户设备和基站系统中的码本实现
US12413280B2 (en) Method of sounding reference signal (SRS)-assisted SD beam and FD vector reporting for type II channel state information (CSI)
CN110011706A (zh) 一种优化协作传输的方法及装置
CN117200841A (zh) 波束极化方向确定方法、装置及存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17854460

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17854460

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 08/10/2019)

122 Ep: pct application non-entry in european phase

Ref document number: 17854460

Country of ref document: EP

Kind code of ref document: A1