WO2018166345A1 - 上行发送波束确定方法和装置 - Google Patents
上行发送波束确定方法和装置 Download PDFInfo
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- WO2018166345A1 WO2018166345A1 PCT/CN2018/077259 CN2018077259W WO2018166345A1 WO 2018166345 A1 WO2018166345 A1 WO 2018166345A1 CN 2018077259 W CN2018077259 W CN 2018077259W WO 2018166345 A1 WO2018166345 A1 WO 2018166345A1
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- uplink
- transmit beam
- terminal
- reference signal
- indication information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Definitions
- the present disclosure relates to the field of communications technologies, and in particular, to an uplink transmit beam determining method and apparatus.
- MIMO Multiple Input Multiple-Output
- LTE Long Term Evolution
- LTE-A Long Term Evolution-Advanced
- the radio access technology standards are all based on MIMO+OFDM (Orthogonal Frequency Division Multiplexing) technology.
- the performance gain of MIMO technology comes from the spatial freedom that multi-antenna systems can obtain. Therefore, one of the most important evolution directions of MIMO technology in the development of standardization is the expansion of dimensions.
- Rel-8 up to 4 layers of MIMO transmission can be supported.
- Rel-9 focuses on MU-MIMO technology enhancement, and TM (Transmission Mode)-8
- MU-MIMO Multi-User MIMO, multi-user multiple input multiple output
- Rel-10 introduces support for 8 antenna ports to further improve the spatial resolution of channel state information, and further expands the transmission capability of SU-MIMO (Single-User MIMO, single-user multiple input multiple output) to a maximum of 8 data layers.
- Rel-13 and Rel-14 introduce FD-MIMO full-dimension multiple-input multiple-output technology to support 32-port, full-dimensional and vertical beamforming.
- large-scale antenna technology is introduced in mobile communication systems.
- 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 unit.
- 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 all-digital antenna array each antenna unit has a separate transceiver unit, will greatly increase the size, cost and power consumption of the device.
- ADC analog-to-digital converter
- DAC digital-to-analog converter
- the power consumption has only been reduced by about 1/10 in the past decade, and the performance improvement is limited.
- a technical solution based on analog beamforming has been proposed.
- the terminal may be obtained based on the uplink beam training process, or obtained based on the uplink and downlink wave speed reciprocity, but the terminal cannot determine the uplink transmit beam of the terminal according to the indication of the base station.
- the embodiments of the present disclosure provide an uplink transmit beam determining method and apparatus, which can ensure that a base station selects an uplink transmit beam for a terminal.
- an uplink transmit beam determining method including:
- the base station sends uplink transmit beam indication information to the terminal;
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- the uplink transmit beam indication information includes a number of an uplink transmit beam, or an indication information of an uplink reference signal
- the base station indicates that the uplink transmit beam of the terminal is obtained by using a downlink reference signal, where the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the method before the sending, by the base station, the uplink sending beam indication information to the terminal, the method further includes:
- the base station determines an uplink transmit beam of the terminal based on the uplink reference signal, or the base station determines an uplink transmit beam of the terminal based on uplink and downlink beam reciprocity.
- the determining, by the base station, the uplink transmit beam of the terminal, based on the uplink reference signal includes:
- the base station determines an optimal uplink transmit beam by using the uplink reference signal.
- the uplink reference signal of each candidate uplink transmit beam is sent after the beamforming weight corresponding to the candidate uplink transmit beam is shaped.
- the uplink reference signal of the terminal is sent on a resource configured by the base station.
- the method before the sending, by the base station, the uplink sending beam indication information to the terminal, the method further includes:
- the base station determines the beam type indication information based on the measurement result of the network, or the base station determines the beam type indication information based on the measurement result of the self and the measurement result reported by the terminal.
- the determining, by the base station, beam type indication information, based on the measurement result of the base station includes:
- the base station measures an uplink reference signal sent by the terminal, to obtain a receiving quality of each uplink reference signal
- the base station measures an uplink signal sent by the uplink transmission beam obtained by the terminal according to the downlink reference signal, to obtain a reception quality of the uplink signal;
- the base station selects the terminal to obtain an uplink transmitting beam based on the uplink reference signal, otherwise, the base station selects, and the terminal obtains the uplink based on the downlink reference signal. Transmit beam.
- the determining, by the base station, the beam type indication information, based on the measurement result of the terminal and the measurement result reported by the terminal including:
- the base station measures an uplink reference signal sent by the terminal, to obtain a receiving quality of each uplink reference signal
- the base station selects the terminal to obtain an uplink transmitting beam based on the uplink reference signal
- the base station selects the terminal to obtain an uplink transmission beam based on the downlink reference signal.
- the method further includes:
- the base station receives an uplink signal sent by the terminal by using the determined uplink transmit beam.
- the receiving, by the base station, the uplink signal sent by the terminal by using the determined uplink transmit beam including:
- the base station If the base station indicates that the terminal obtains an uplink transmit beam based on an uplink reference signal, the base station receives an uplink signal of the terminal by using an uplink receive beam corresponding to the uplink transmit beam indicated by the base station; or
- the base station If the base station indicates that the terminal obtains an uplink transmit beam based on the downlink reference signal, the base station receives an uplink signal of the uplink receive beam corresponding to the downlink transmit beam indicated by the base station.
- an uplink transmit beam determining method including:
- the terminal determines an uplink transmit beam according to the uplink transmit beam indication information
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- the uplink transmit beam indication information includes a number of an uplink transmit beam, or an indication information of an uplink reference signal
- the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the terminal determines the weight of the uplink transmit beam according to the number of the uplink transmit beam or the indication information of the uplink reference signal.
- the terminal determines a weight of the uplink transmit beam according to a mapping relationship between the number of the uplink transmit beam and the beamforming weight.
- the terminal determines the weight of the uplink transmit beam according to the number of the downlink transmit beam or the indication information of the downlink reference signal.
- the terminal determines, according to the number of the downlink transmit beam or the indication information of the downlink reference signal, the weight of the uplink transmit beam, including:
- the weight of the uplink transmit beam is determined by the downlink receive beam based on channel reciprocity.
- an uplink transmit beam determining apparatus including:
- a sending module configured to send uplink transmit beam indication information to the terminal
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- the uplink transmit beam indication information includes a number of an uplink transmit beam, or an indication information of an uplink reference signal
- the base station indicates that the uplink transmit beam of the terminal is obtained by using a downlink reference signal, where the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the device further includes:
- the first determining module is configured to determine an uplink transmit beam of the terminal based on the uplink reference signal, or determine an uplink transmit beam of the terminal based on uplink and downlink beam reciprocity.
- the determining module includes:
- a receiving unit configured to receive an uplink reference signal sent by the terminal by using multiple candidate uplink transmit beams
- a first determining unit configured to determine, by using the uplink reference signal, an optimal uplink transmit beam.
- the reference signal of each candidate uplink transmit beam is sent after the beamforming weight corresponding to the beam is shaped.
- the device further includes:
- the second determining module is configured to determine the beam type indication information based on the measurement result of the self, or determine the beam type indication information based on the measurement result of the self and the measurement result reported by the terminal.
- the second determining module includes:
- a first measuring unit configured to measure an uplink reference signal sent by the terminal, to obtain a receiving quality of each uplink reference signal
- a second measuring unit configured to measure an uplink signal sent by the terminal, to obtain a receiving quality of the uplink signal, where the uplink signal is sent by the terminal by using an uplink transmit beam obtained by using a downlink reference signal;
- a first selecting unit configured to: if the receiving quality of the at least one uplink reference signal is higher than the receiving quality of the uplink signal, the terminal is configured to obtain an uplink sending beam based on the uplink reference signal, and otherwise, the terminal is configured to obtain an uplink sending based on the downlink reference signal. Beam.
- the second determining module includes:
- a third measuring unit configured to measure an uplink reference signal sent by the terminal, to obtain a receiving quality of each uplink reference signal
- a first receiving unit configured to receive a receiving quality of the downlink reference signal reported by the terminal
- a second selecting unit configured to: if the receiving quality of the at least one uplink beam reference signal is higher than the receiving quality of all the downlink reference signals reported by the terminal, the terminal is configured to obtain an uplink transmitting beam based on the uplink reference signal; if at least one terminal reports The receiving quality of the downlink reference signal is higher than the receiving quality of all uplink reference signals, and the terminal is selected to obtain an uplink transmitting beam based on the downlink reference signal.
- the device further includes:
- the first receiving module is configured to receive an uplink signal sent by the terminal by using the determined uplink transmit beam.
- the first receiving module includes:
- a second receiving unit configured to: if the terminal is instructed to obtain an uplink transmit beam based on the uplink reference signal, receive an uplink signal of the terminal by using an uplink receive beam corresponding to the indicated uplink transmit beam; or
- the uplink receive beam corresponding to the indicated downlink transmit beam is used to receive the uplink signal of the terminal.
- an uplink transmit beam determining apparatus including:
- a second receiving module configured to receive uplink transmit beam indication information sent by the base station
- a third determining module configured to determine an uplink transmit beam according to the uplink transmit beam indication information
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- the uplink transmit beam indication information includes a number of an uplink transmit beam, or an indication information of an uplink reference signal
- the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the device further includes:
- the fourth determining module is configured to: if the uplink transmit beam indication information indicates that the terminal obtains an uplink transmit beam based on the uplink reference signal, determine a weight of the uplink transmit beam according to the number of the uplink transmit beam or the indication information of the uplink reference signal.
- the fourth determining module is further configured to determine a weight of the uplink transmit beam according to a mapping relationship between the number of the uplink transmit beam and the beamforming weight.
- the device further includes:
- a fifth determining module configured to determine, according to the downlink transmit beam, the uplink transmit beam, and determine the weight of the uplink transmit beam according to the downlink transmit beam number or the downlink reference signal indication information.
- the fifth determining module includes:
- a second determining unit configured to determine a corresponding downlink receiving beam according to the number of the downlink transmitting beam or the indication information of the downlink reference signal
- a third determining unit configured to determine, by the downlink receiving beam, a weight of the uplink sending beam based on channel reciprocity.
- a base station including a first memory, a first processor, and a computer program stored on the first memory and operable on the first processor, the The steps in the uplink transmit beam determining method as described in the first aspect are implemented when a processor executes the computer program.
- a terminal including a second memory, a second processor, and a computer program stored on the second memory and operable on the second processor, the The second processor performs the steps in the uplink transmit beam determining method as described in the second aspect when the computer program is executed.
- a computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement an uplink transmit beam as described in the first aspect Determine the steps in the method.
- a computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement an uplink transmit beam as described in the second aspect Determine the steps in the method.
- the beam type indication information indicates whether the uplink transmission beam of the terminal is obtained based on the uplink reference signal or based on the downlink reference signal, and can ensure that the base station selects an uplink transmission beam for the terminal.
- 1 is a schematic diagram of analog beamforming (weighted shaping of an intermediate frequency signal);
- FIG. 2 is a schematic diagram of analog beamforming (weighted shaping of a radio frequency signal);
- 3 is a schematic diagram of digital-analog hybrid beamforming
- FIG. 5 is a flowchart of an uplink transmit beam determining method according to still another embodiment of the present disclosure.
- FIG. 6 is a flowchart of an uplink transmit beam determining method in other embodiments of the present disclosure.
- FIG. 7 is a block diagram of an uplink transmit beam determining apparatus in some embodiments of the present disclosure.
- FIG. 8 is a block diagram of an uplink transmit beam determining apparatus in still other embodiments of the present disclosure.
- FIG. 9 is a schematic structural diagram of a base station according to some embodiments of the present disclosure.
- FIG. 10 is a schematic structural diagram of a terminal in some embodiments of the present disclosure.
- the main feature of analog beamforming is the weighted shaping of the intermediate frequency (Figure 1) or the RF signal ( Figure 2) by a phase shifter.
- Figure 1 The advantage is that all transmit (receive) antennas have only one transceiver unit, which is simple to implement, reducing cost, size and power consumption.
- the execution body of the method may be a base station, and the specific steps are as follows:
- Step 401 The base station sends uplink transmit beam indication information to the terminal.
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- C-RS cell-specific reference signals
- UE-RS user-specific reference signals
- MBSFN multicast/multicast single-frequency networks
- P-RS position reference signal
- five reference signals are defined in the downlink, which are cell-specific reference signals (C-RS), user-specific reference signals (UE-RS, also known as DM-RS), MBSFN reference signals, and position reference signals (P- RS), and CSI reference signal (CSI-RS).
- the uplink reference signal may include a DM-RS and an SRS (Channel Sounding Reference Signal).
- the uplink transmit beam may be obtained based on an uplink beam training process.
- the uplink transmit beam of the terminal may be obtained based on the reciprocity of the uplink and downlink channels.
- the uplink and downlink channel characteristics in the same frequency band are basically the same in a certain coherence time, which is called channel reciprocity.
- the uplink and downlink of the TD-LTE (Time Division Long Term Evolution) system are transmitted on different time slots of the same frequency resource, so within a relatively short time (coherence time of channel propagation) It can be considered that the channel fading experienced by the uplink and downlink transmission signals is the same, which is the channel reciprocity of TD-LTE.
- the beam type indication information is used to indicate whether the uplink transmit beam of the terminal is obtained based on the uplink reference signal or based on the downlink reference signal.
- the base station may indicate, by using the beam type indication information, that the terminal uses an uplink transmit beam that is obtained based on the uplink reference signal, or that the base station may use the beam type indication information to indicate that the terminal uses the uplink transmit beam that is obtained by using the uplink reference signal.
- the method can ensure that the base station selects an uplink transmit beam for the terminal.
- the uplink transmit beam indication information includes an identifier of an uplink transmit beam or an indication of an uplink reference signal
- the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the base station may determine the uplink transmit beam of the terminal in the following two manners before the base station sends the uplink transmit beam indication information to the terminal:
- Manner 1 The base station determines an uplink transmit beam of the terminal based on the uplink reference signal
- Manner 2 The base station determines an uplink transmit beam of the terminal based on the reciprocity of the uplink and downlink channels.
- the foregoing method specifically includes: receiving, by the base station, an uplink reference signal that is sent by the terminal by using multiple candidate uplink transmit beams; then, the base station determines an optimal uplink transmit beam by using an uplink reference signal, for example, the base station determines the most The uplink uplink transmit beam enables the base station to select a suitable uplink transmit beam for the terminal.
- the reference signal of each candidate uplink transmit beam is sent after the beamforming weight corresponding to the beam is shaped.
- the uplink reference signal of the terminal is sent on the resource configured by the base station.
- the configured resources may be periodic resources, or non-periodic resources, or semi-persistent resources.
- a digital analog hybrid beamforming transceiver architecture scheme is proposed, as shown in FIG.
- the sender and the receiver respectively have with Transceiver unit, number of antenna units at the transmitting end Number of antenna units at the receiving end
- the maximum number of parallel transport streams supported by beamforming is
- the hybrid beamforming structure of Figure 3 balances the flexibility of digital beamforming and the low complexity of analog beamforming, with the ability to support multiple data streams and simultaneous shaping of multiple users, while also complexity. Control is within reasonable limits.
- Both analog beamforming and digital-to-analog hybrid beamforming require adjustment of the analog beamforming weights at both ends of the transceiver so that the resulting beam can be aligned with the opposite end of the communication.
- the beam shaping weights sent by the base station side and the beam shaping weights received by the terminal side need to be adjusted.
- the beam shaping weights sent by the terminal side and received by the base station side need to be adjusted.
- the weight of beamforming is usually obtained by sending a training signal.
- the base station sends a downlink beam training signal, and the terminal measures the downlink beam training signal, selects the best base station transmit beam, and feeds the beam related information to the base station, and selects the corresponding optimal receive beam, and saves it locally.
- the terminal sends an uplink beam training signal, and the base station measures the uplink beam training signal, selects the best terminal transmission beam, transmits the beam-related information to the terminal, and selects the corresponding optimal receiving beam, and saves it locally.
- Data transmission can be performed after the uplink and downlink transmit and receive beams are trained.
- uplink and downlink beam training will bring about an increase in system overhead.
- uplink beam training requires each terminal to transmit an uplink beam training signal.
- the terminal can determine the uplink transmit beam based on the downlink receive beam obtained by the downlink beam training process, thereby saving the overhead of the uplink beam training.
- the uplink transmit beam obtained by the reciprocity of the uplink and downlink channels is not always the best beam. If the uplink transmit beam of the terminal is completely dependent on the beam reciprocity, the optimal performance of the system will not be achieved.
- the base station may determine the beam type indication information in the following two manners before the base station sends the uplink transmission beam indication information to the terminal:
- Manner 1 The base station determines beam type indication information based on its own measurement result
- the base station measures the uplink reference signal sent by the terminal, and obtains the receiving quality of each uplink reference signal; the base station measures an uplink signal (for example, a reference signal) that is sent by the terminal by using the uplink transmit beam obtained by using the downlink reference signal.
- the signal of the data channel, etc. obtains the reception quality of the uplink signal; if the reception quality of the at least one uplink reference signal is higher than the reception quality of the uplink signal transmitted by the channel reciprocity beam, the base station selects the terminal to adopt the uplink reference The signal obtains an uplink transmit beam. Otherwise, the base station selects the terminal to obtain an uplink transmit beam based on the downlink reference signal.
- the uplink transmission beam obtained based on the downlink reference signal refers to selecting an uplink transmission beam corresponding to the downlink reference signal by using channel reciprocity.
- Manner 2 The base station determines beam type indication information based on the measurement result of the terminal and the measurement result reported by the terminal.
- the base station measures the uplink reference signal sent by the terminal, and obtains the received quality of each uplink reference signal, where the uplink reference signal is sent by the uplink transmit beam obtained by the terminal using the uplink beam training process; and the base station receives the terminal report.
- the receiving quality of the downlink reference signal if the receiving quality of the at least one uplink reference signal is higher than the receiving quality of all the downlink reference signals reported by the terminal, the base station selects the terminal to obtain an uplink transmitting beam based on the uplink reference signal;
- the receiving quality of the downlink reference signal reported by one terminal is higher than the receiving quality of all uplink reference signals, and the base station selects the terminal to obtain an uplink transmitting beam based on the downlink reference signal.
- the base station can select a suitable uplink transmit beam for the terminal, and improve system performance under non-ideal conditions of channel reciprocity.
- the method further includes: receiving, by the base station, an uplink signal sent by the terminal by using the determined uplink transmit beam.
- the base station if the base station instructs the terminal to obtain an uplink transmit beam based on the uplink reference signal, the base station receives the uplink signal, the uplink transmit beam, and the receive beam of the terminal by using an uplink receive beam corresponding to the uplink transmit beam indicated by the base station. Correspondence can be determined during the uplink beam training; or
- the base station uses an uplink signal of the uplink receive beam receiving terminal corresponding to the downlink transmit beam indicated by the base station, and corresponds to the uplink transmit beam and the uplink receive beam.
- the relationship may be a correspondence based on channel reciprocity.
- the beam type indication information is used to indicate whether the uplink transmission beam of the terminal is obtained based on the uplink reference signal, or is obtained based on the downlink reference signal, where the beam type indication information may be determined based on the measurement result of the base station itself, or may be determined by It is obtained by the base station based on its own measurement result and the measurement result reported by the terminal, thereby ensuring that the base station selects an appropriate uplink transmission beam for the terminal, and improves system performance under non-ideal conditions of channel reciprocity.
- the execution body of the method may be a terminal.
- the specific steps are as follows:
- Step 501 The terminal receives uplink transmit beam indication information sent by the base station.
- Step 502 The terminal determines an uplink transmit beam according to the uplink transmit beam indication information.
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- the uplink transmit beam indication information includes an identifier of an uplink transmit beam, or an indication of an uplink reference signal.
- the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the terminal determines the weight of the uplink transmit beam according to the number of the uplink transmit beam or the indication information of the uplink reference signal. .
- the terminal determines, according to a mapping relationship between the number of the uplink transmit beam and the beamforming weight, the weight of the uplink transmit beam; or
- the terminal determines the weight of the uplink transmit beam according to the mapping relationship between the uplink transmit beam and the beamforming weight.
- the terminal determines the right of the uplink transmit beam according to the number of the downlink transmit beam or the indication information of the downlink reference signal. value. For example, the terminal determines a corresponding downlink receiving beam according to the number of the downlink transmitting beam or the indication information of the downlink reference signal, and determines the weight of the uplink transmitting beam by the downlink receiving beam based on the channel reciprocity.
- the beam type indication information is used to indicate whether the uplink transmission beam of the terminal is obtained based on the uplink reference signal, or is obtained based on the downlink reference signal, where the beam type indication information may be determined based on the measurement result of the base station itself, or may be determined by It is obtained by the base station based on its own measurement result and the measurement result reported by the terminal, thereby ensuring that the base station selects an appropriate uplink transmission beam for the terminal, and improves system performance under non-ideal conditions of channel reciprocity.
- FIG. 6 a flow of a method for determining an uplink transmit beam is illustrated, including steps 601 through 604.
- Step 601 The base station determines an uplink transmit beam of the terminal.
- the base station can determine the uplink transmit beam of the terminal in the following two ways:
- Method 1 an uplink transmit beam obtained based on reciprocity of uplink and downlink channels
- Manner 2 Determine an uplink transmit beam based on the uplink reference signal.
- the terminal transmits an uplink reference signal of multiple candidate uplink transmit beams.
- the number of candidate uplink transmit beams of the terminal depends on the hardware capabilities of the terminal. Assume the terminal has a total Candidate uplink transmit beams, each uplink transmit beam corresponds to a set of beamforming weights, and the transmit beam shaping weight of the nth beam is Where L is the number of beam-shaped antenna elements, which may be smaller than the number of terminal antenna units.
- the terminal may transmit an uplink reference signal for each candidate uplink transmit beam. For example Uplink transmit beam, the terminal can send Uplink reference signals. This The uplink reference signals may be combined by TDM (Time Division Multiplexing), FDM (Frequency Division Multiplexing), CDM (Code Division Multiplexing), or various multiplexing methods.
- Uplink reference signals can be occupied OFDM symbols, each uplink reference signal occupies 1 OFDM symbol, and the uplink reference signals are TDM multiplexed. It is also possible to transmit uplink reference signals of multiple beams in one OFDM symbol, with FDM multiplexing or CDM multiplexing between them.
- OFDM Orthogonal Frequency Division Multiplexing
- the beam training signal of each beam is formed by shaping a beam shaping weight corresponding to the beam.
- the uplink transmit beam training signal of the terminal is sent on the resource configured by the base station.
- the configured resources are periodic resources, or aperiodic resources, or semi-persistent resources.
- the base station determines the best uplink transmit beam by receiving the uplink reference signal sent by the terminal.
- the base station determines the best uplink transmit beam by measuring the uplink reference signal.
- the terminal may select the beam with the strongest received power of the uplink reference signal as the best uplink transmit beam.
- the best uplink transmit beam is a beam (this time refers to recommending 1 beam in one training process, multiple beam training processes can recommend multiple different beams), or multiple beams.
- the base station determines the number of the best upstream transmit beam.
- the number can be performed within the range of all candidate uplink transmit beams of the terminal, for example, The number of candidate uplink transmit beams is 0, 1, ...
- the number can also be performed within the range of the uplink reference signal sent by the terminal, for example, the terminal sends One uplink reference signal, each beam training signal corresponds to one uplink transmit beam, and its number range is
- One possible implementation manner is that the uplink beam training process is performed in a large period, and the uplink transmission beam is determined according to the channel reciprocity in the two beam training processes.
- Step 602 The base station sends uplink transmit beam indication information to the terminal.
- the uplink transmit beam indication information includes beam type indication information, which is used to indicate whether the uplink transmit beam of the terminal is determined based on the uplink reference signal or based on the downlink reference signal.
- the uplink transmit beam indication information includes the number of the uplink transmit beam or the indication information of the uplink reference signal.
- the uplink transmit beam indication information includes the downlink transmit beam number, or the indication information of the downlink beam training signal, or the downlink includes the downlink receive beam indication information.
- the base station may determine the uplink transmit beam type of the terminal based on its own measurement result.
- the base station measures the uplink reference signal (or the uplink beam training signal) sent by the terminal, and obtains the reception quality of each uplink reference signal, such as RSRP (Reference Signal Receiving Power).
- the base station can measure the uplink signal sent by the terminal using the channel reciprocity beam, such as the reference signal, the signal of the data channel, etc., to obtain the RSRP value.
- the base station compares the measured values obtained by the two, if the receiving quality of the at least one uplink reference signal is higher than the receiving quality of the uplink signal sent by the channel reciprocity, the base station may select to enable the terminal to determine the uplink transmitting beam based on the uplink reference signal. Otherwise, the base station may choose to cause the terminal to determine an uplink transmit beam based on the downlink reference signal.
- the base station may determine the uplink transmit beam type of the terminal based on its own measurement and the measurement result reported by the terminal.
- the base station measures the uplink reference signal sent by the terminal, and obtains the reception quality of each uplink reference signal, such as RSRP. At the same time, the base station receives the reception quality of the downlink reference signal reported by the terminal, such as the RSRP value.
- the base station compares the two, if the receiving quality of the at least one uplink reference signal is higher than the receiving quality of all the downlink reference signals reported by the terminal, the base station may select to enable the terminal to determine the uplink transmitting beam based on the uplink reference signal, otherwise if there is at least one terminal
- the received quality of the reported downlink reference signal is higher than the received quality determined by all uplink reference signals, and the base station may select to enable the terminal to determine the uplink transmit beam based on the downlink reference signal.
- the base station Since the reception quality is affected by the transmission power, the base station needs to remove the influence of the transmission power when comparing, that is, the result of the base station measurement needs to subtract the transmission power of the terminal, and the measurement result reported by the terminal needs to subtract the transmission power of the base station.
- Step 603 The terminal receives uplink transmit beam indication information sent by the base station.
- the terminal determines the weight of the uplink transmission beam according to the number of the uplink transmission beam (or the indication information of the uplink reference signal).
- the terminal may determine the weight of the uplink transmit beam according to the mapping relationship between the number and the beamforming weight, and the mapping relationship is saved in the terminal. For example, if the number of the uplink transmit beam is within the range of the uplink reference signal, the terminal may determine the weight of the uplink transmit beam according to the mapping between the number and the uplink reference signal and the beamforming weight, and the mapping relationship Save in the terminal.
- the terminal determines the weight of the uplink transmission beam according to the number of the downlink transmission beam (or the indication information of the downlink reference signal, etc.).
- the specific process is as follows: The terminal determines the corresponding downlink receiving beam according to the number of the downlink transmitting beam (or the indication information of the downlink reference signal, etc.), and determines the weight of the uplink transmitting beam by the downlink receiving beam based on the channel reciprocity.
- the downlink and uplink transmissions herein may use the same set of beamforming weights to generate receive beams and transmit beams that point in the same direction (or similar directions).
- the terminal downlink receiving beam and the uplink transmitting beam have a certain correspondence relationship, that is, after the downlink receiving beam of the receiving base station signal is given, an uplink transmitting beam can be determined by using the corresponding relationship, and the transmitting beam can be used for the terminal.
- the uplink signal/channel/data is transmitted to the base station.
- the downlink receive beam corresponding to the downlink transmit beam can be obtained during the downlink beam training process (this process does not have to be performed after the indication information is received, and can be completed before the indication information is received):
- the base station transmits a downlink beam training signal.
- 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 may be smaller than the number of antenna elements of the base station.
- the base station can transmit one beam training signal for each candidate downlink transmit beam.
- the base station can send Training signals.
- the training signals can be multiplexed with TDM, FDM, CDM, or a combination of various multiplexing methods.
- Training signals can be occupied OFDM symbols, each training signal occupies 1 OFDM symbol, and the training signals are TDM multiplexed. It is also possible to transmit training signals of multiple beams in one OFDM symbol, with FDM multiplexing or CDM multiplexing between them.
- the beam training signal of each beam is formed by shaping a beam shaping weight corresponding to the beam.
- the beam training signal is sent periodically, or sent non-periodically, or semi-persistently.
- the terminal receives the downlink beam training signal sent by the base station, and selects the receiving beam corresponding to the downlink transmission beam by measuring the beam training signal.
- the terminal determines the corresponding receive beam.
- the receive beam of the terminal may be selected from candidate receive beams.
- L is the number of beam-shaped antenna elements, which can be smaller than the number of antenna elements of the terminal.
- the terminal may separately try to receive each of the received beams, and select the receiving beam with the strongest received signal power as the receiving beam of the downlink transmitting beam.
- Step 604 The base station receives an uplink signal sent by the terminal by using the determined uplink transmit beam.
- the base station uses the uplink receive beam corresponding to the uplink transmit beam indicated by the base station to receive the uplink signal of the terminal.
- the correspondence can be determined during the uplink beam training process.
- the base station uses the uplink receive beam corresponding to the downlink transmit beam indicated by the base station to receive the uplink signal of the terminal.
- the correspondence here may be a correspondence based on channel reciprocity.
- an uplink transmit beam determining apparatus is further provided in the embodiment of the present disclosure.
- the principle of solving the problem is similar to the uplink transmit beam determining method in FIG. 4 and FIG. 6 of the embodiment of the present disclosure.
- Implementation can refer to the implementation of the method, and the repetitions are not described.
- the apparatus 700 includes:
- the sending module 701 is configured to send uplink transmit beam indication information to the terminal.
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- the uplink transmit beam indication information includes an identifier of an uplink transmit beam, or an indication of an uplink reference signal.
- the base station indicates that the uplink transmit beam of the terminal is obtained by using a downlink reference signal, where the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the device further includes:
- the first determining module is configured to determine an uplink transmit beam of the terminal based on the uplink reference signal, or determine an uplink transmit beam of the terminal based on uplink and downlink beam reciprocity.
- the determining module includes:
- a receiving unit configured to receive an uplink reference signal sent by the terminal by using multiple candidate uplink transmit beams
- a first determining unit configured to determine, by using the uplink reference signal, an optimal uplink transmit beam.
- the reference signal of each candidate uplink transmit beam is sent after being shaped by the beamforming weight corresponding to the beam.
- the device further includes:
- the second determining module is configured to determine the beam type indication information based on the measurement result of the self, or determine the beam type indication information based on the measurement result of the self and the measurement result reported by the terminal.
- the second determining module includes:
- a first measuring unit configured to measure an uplink reference signal sent by the terminal, to obtain a receiving quality of each uplink reference signal
- a second measuring unit configured to measure an uplink signal sent by the terminal, to obtain a receiving quality of the uplink signal, where the uplink signal is sent by the terminal by using an uplink transmit beam obtained by using a downlink reference signal;
- a first selecting unit configured to: if the receiving quality of the at least one uplink reference signal is higher than the receiving quality of the uplink signal, the terminal is configured to obtain an uplink sending beam based on the uplink reference signal, and otherwise, the terminal is configured to obtain an uplink sending based on the downlink reference signal. Beam.
- the second determining module includes:
- a third measuring unit configured to measure an uplink reference signal sent by the terminal, to obtain a receiving quality of each uplink reference signal
- a first receiving unit configured to receive a receiving quality of the downlink reference signal reported by the terminal
- a second selecting unit configured to: if the receiving quality of the at least one uplink beam reference signal is higher than the receiving quality of all the downlink reference signals reported by the terminal, the terminal is configured to obtain an uplink transmitting beam based on the uplink reference signal; if at least one terminal reports The receiving quality of the downlink reference signal is higher than the receiving quality of all uplink reference signals, and the terminal is selected to obtain an uplink transmitting beam based on the downlink reference signal.
- the device further includes:
- the first receiving module is configured to receive an uplink signal sent by the terminal by using the determined uplink transmit beam.
- the first receiving module includes:
- a second receiving unit configured to: if the terminal is instructed to obtain an uplink transmit beam based on the uplink reference signal, receive an uplink signal of the terminal by using an uplink receive beam corresponding to the indicated uplink transmit beam; or if the terminal is indicated to be downlink based
- the reference signal obtains an uplink transmit beam, and receives an uplink signal of the uplink receive beam corresponding to the indicated downlink transmit beam.
- an uplink transmit beam determining apparatus is further provided in the embodiment of the present disclosure.
- the principle of solving the problem is similar to the uplink transmit beam determining method in FIG. 5 and FIG. 6 of the embodiment of the present disclosure.
- Implementation can refer to the implementation of the method, and the repetitions are not described.
- an uplink transmit beam determining apparatus comprising:
- the second receiving module 801 is configured to receive uplink transmit beam indication information sent by the base station;
- the third determining module 802 is configured to determine an uplink transmit beam according to the uplink transmit beam indication information.
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate the terminal.
- the uplink transmit beam is obtained based on the downlink reference signal.
- the uplink transmit beam indication information includes an identifier of an uplink transmit beam, or an indication of an uplink reference signal.
- the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the device further includes:
- the fourth determining module is configured to: if the uplink transmit beam indication information indicates that the terminal obtains an uplink transmit beam based on the uplink reference signal, determine a weight of the uplink transmit beam according to the number of the uplink transmit beam or the indication information of the uplink reference signal.
- the fourth determining module is further configured to determine, according to a mapping relationship between the number of the uplink transmit beam and the beamforming weight, the weight of the uplink transmit beam; or
- the weight of the uplink transmit beam is determined according to a mapping relationship between the uplink transmit beam and the beamforming weight.
- the device further includes:
- the fifth determining module is configured to determine, according to the downlink transmit beam, the uplink transmit beam, and determine the weight of the uplink transmit beam according to the downlink transmit beam number or the downlink reference signal indication information.
- the fifth determining module includes:
- a second determining unit configured to determine a corresponding downlink receiving beam according to the number of the downlink transmitting beam or the indication information of the downlink reference signal
- a third determining unit configured to determine, by the downlink receiving beam, a weight of the uplink sending beam based on channel reciprocity.
- An embodiment of the present disclosure further provides a base station including a first memory, a first processor, and a computer program stored on the first memory and operable on the first processor, the first processor executing the computer
- the steps in the uplink transmit beam determining method as described above are implemented in the program.
- a structure of a base station including a first memory, a first processor, and a computer program stored on the first memory and operable on the first processor, the first processor
- the program When the program is executed, the following steps are implemented: sending uplink transmit beam indication information to the terminal; where the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that the uplink transmit beam of the terminal is based on
- the uplink reference signal obtained by the uplink reference signal is used to indicate that the uplink transmit beam of the terminal is obtained based on the downlink reference signal.
- a bus architecture (represented by a first bus 900), the first bus 900 can include any number of interconnected buses and bridges, and the first bus 900 will include one or more of the ones represented by the first processor 904.
- the processor and various circuits of the memory represented by the first memory 905 are linked together.
- the first bus 900 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
- the first bus interface 903 provides an interface between the first bus 900 and the first transceiver 901.
- the first transceiver 901 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
- Data processed by the first processor 904 is transmitted over the wireless medium by the first antenna 902. Further, the first antenna 902 also receives the data and transmits the data to the first processor 904.
- the first processor 904 is responsible for managing the first bus 900 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
- the first memory 905 can be used to store data used by the first processor 904 when performing operations.
- the first processor 904 may be a CPU, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). Programmable logic device).
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- CPLD Complex Programmable Logic Device
- the uplink transmit beam indication information includes a number of an uplink transmit beam, or an indication information of an uplink reference signal
- the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the first processor is further configured to: determine an uplink transmit beam of the terminal based on the uplink reference signal, or determine an uplink transmit beam of the terminal.
- the first processor is further configured to: receive an uplink reference signal that is sent by the terminal by using multiple candidate uplink transmit beams; and determine, by using the uplink reference signal, an optimal uplink transmit beam.
- the reference signal of each candidate uplink transmit beam is sent after the beamforming weight corresponding to the beam is shaped.
- the uplink reference signal of the terminal is sent on a resource configured by the base station.
- the first processor is further configured to: determine the beam type indication information based on the measurement result of the self, or determine the beam type indication information based on the measurement result of the self and the measurement result reported by the terminal.
- the first processor is further configured to: measure an uplink reference signal sent by the terminal, obtain a receiving quality of each uplink reference signal, and measure an uplink signal sent by the terminal by using a channel reciprocity beam to obtain a channel.
- the receiving quality of the uplink reference signal sent by the reciprocity if the receiving quality of the at least one uplink reference signal is higher than the receiving quality of the uplink signal sent by the channel reciprocity, the terminal is selected to obtain the uplink transmitting beam based on the uplink reference signal, Otherwise, the terminal is selected to obtain an uplink transmit beam based on the downlink reference signal.
- the first processor is further configured to: measure an uplink reference signal sent by the terminal, obtain a receiving quality of each uplink reference signal, and receive a receiving quality of the downlink reference signal reported by the terminal; if there is at least one uplink The receiving quality of the beam reference signal is higher than the receiving quality of all the downlink reference signals reported by the terminal, and the terminal is selected to obtain the uplink transmitting beam based on the uplink reference signal; if the receiving quality of the downlink reference signal reported by at least one terminal is higher than all uplink references The reception quality of the signal is selected such that the terminal obtains an uplink transmission beam based on the downlink reference signal.
- the first processor is further configured to: receive an uplink signal sent by the terminal by using the determined uplink transmit beam.
- the first processor is further configured to: if the terminal is instructed to obtain an uplink transmit beam based on the uplink reference signal, receive an uplink signal of the terminal by using an uplink receive beam corresponding to the uplink transmit beam indicated by the base station; or If the terminal is instructed to obtain an uplink transmit beam based on the downlink reference signal, the uplink receive beam corresponding to the indicated downlink transmit beam is used to receive the uplink signal of the terminal.
- An embodiment of the present disclosure further provides a terminal, including a second memory, a second processor, and a computer program stored on the second memory and operable on the second processor, the second processor executing the computer
- the steps in the uplink transmit beam determining method as described above are implemented in the program.
- FIG. 10 there is shown a structure of a terminal including a second memory, a second processor, and a computer program stored on the second memory and operable on the second processor, the second processor
- the program When the program is executed, the following steps are performed: receiving uplink transmit beam indication information sent by the base station; determining an uplink transmit beam according to the uplink transmit beam indication information; where the uplink transmit beam indication information includes beam type indication information, the beam type The indication information is used to indicate that the uplink transmit beam of the terminal is obtained based on the uplink reference signal, or the beam type indication information is used to indicate that the uplink transmit beam of the terminal is based on the downlink reference signal.
- a bus architecture (represented by a second bus 1000), which may include any number of interconnected buses and bridges, the second bus 1000 will include one or more of the generic second processors 1001
- the various circuits of the memory represented by the processor and the second memory 1004 are linked together.
- the second bus 1000 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
- the second bus interface 1003 provides an interface between the second bus 1000 and the second transceiver 1002.
- the second transceiver 1002 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
- the second transceiver 1002 receives external data from other devices.
- the second transceiver 1002 is configured to send the data processed by the second processor 1001 to other devices.
- a user interface 1005 such as a keypad, display, speaker, microphone, joystick, may also be provided.
- the second processor 1001 is responsible for managing the second bus 1000 and the usual processing, running the general purpose operating system as described above.
- the second memory 1004 can be used to store data used by the second processor 1001 when performing operations.
- the second processor 1001 may be a CPU, an ASIC, an FPGA, or a CPLD.
- the uplink transmit beam indication information includes an identifier of an uplink transmit beam, or indication information of an uplink reference signal; or The base station indicates that the uplink transmit beam of the terminal is obtained by using a downlink reference signal, and the uplink transmit beam indication information includes a downlink transmit beam number, or a downlink reference signal indication information, or a downlink receive beam indication information.
- the second processor 1001 is further configured to: if the uplink transmit beam indication information indicates that the terminal obtains an uplink transmit beam based on the uplink reference signal, determine the right of the uplink transmit beam according to the number of the uplink transmit beam or the indication information of the uplink reference signal. value.
- the second processor 1001 is further configured to: if the number of the uplink reference signal is performed in all candidate beam ranges, determine an uplink transmit beam according to a mapping relationship between the number of the uplink transmit beam and the beamforming weight If the number of the uplink reference signal is within the range of the uplink reference signal, the weight of the uplink transmit beam is determined according to the mapping relationship between the uplink transmit beam and the beamforming weight.
- the second processor 1001 is further configured to: if the uplink transmit beam indication information indicates that the terminal determines the uplink transmit beam based on the downlink reference signal, determine the right of the uplink transmit beam according to the number of the downlink transmit beam or the indication information of the downlink reference signal. value.
- the second processor 1001 is further configured to: determine a corresponding downlink receive beam according to the number of the downlink transmit beam or the indication information of the downlink reference signal; determine the uplink transmit beam by the downlink receive beam based on channel reciprocity Weight.
- the embodiment of the present disclosure further provides a computer readable storage medium, where the computer program (instruction) is executed, and when the program (instruction) is executed by the processor, the following steps are performed: transmitting uplink transmit beam indication information to the terminal;
- the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that an uplink transmit beam of the terminal is obtained based on an uplink reference signal, or the beam type indication information is used to indicate uplink transmission of the terminal.
- the beam is derived based on the downlink reference signal.
- the program is executed by the processor to implement the following steps:
- the program is executed by the processor to implement the following steps:
- An optimal uplink transmit beam is determined by the uplink reference signal.
- the program is executed by the processor to implement the following steps:
- the beam type indication information is determined based on the measurement result of the self, or the base station determines the beam type indication information based on the measurement result of the self and the measurement result reported by the terminal.
- the program is executed by the processor to implement the following steps:
- the terminal is selected to obtain the uplink transmitting beam based on the uplink reference signal, otherwise, the terminal is selected to obtain the uplink sending based on the downlink reference signal. Beam.
- the program is executed by the processor to implement the following steps:
- the terminal is configured to obtain an uplink transmitting beam based on the uplink reference signal
- the terminal is selected to obtain an uplink transmitting beam based on the downlink reference signal.
- the program is executed by the processor to implement the following steps:
- the uplink receive beam corresponding to the uplink transmit beam indicated by the base station is used to receive the uplink signal of the terminal;
- the uplink receive beam corresponding to the downlink transmit beam indicated by the base station is used to receive the uplink signal of the terminal.
- the embodiment of the present disclosure further provides a computer readable storage medium, where the computer program (instruction) is stored, and when the program (instruction) is executed by the processor, the following steps are performed: receiving uplink transmit beam indication information sent by the base station;
- the uplink transmit beam indication information determines an uplink transmit beam, where the uplink transmit beam indication information includes beam type indication information, where the beam type indication information is used to indicate that the uplink transmit beam of the terminal is obtained based on an uplink reference signal, or The beam type indication information is used to indicate that the uplink transmit beam of the terminal is based on a downlink reference signal.
- the program is executed by the processor to implement the following steps:
- the weight of the uplink transmit beam is determined according to the number of the uplink transmit beam or the indication information of the uplink reference signal.
- the program is executed by the processor to implement the following steps:
- the weight of the uplink transmit beam is determined according to the mapping relationship between the uplink transmit beam and the beamforming weight.
- the program is executed by the processor to implement the following steps:
- the weight of the uplink transmit beam is determined according to the number of the downlink transmit beam or the indication information of the downlink reference signal.
- the program is executed by the processor to implement the following steps:
- system and “network” are used interchangeably herein.
- B corresponding to A means that B is associated with A, and B can be determined from A.
- determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
- the disclosed method and apparatus may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
- the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
- the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network side device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.
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Abstract
Description
Claims (36)
- 一种上行发送波束确定方法,包括:基站向终端发送上行发送波束指示信息;其中,所述上行发送波束指示信息中包含波束类型指示信息,所述波束类型指示信息用于指示终端的上行发送波束是基于上行参考信号得到的,或者所述波束类型指示信息用于指示终端的上行发送波束是基于下行参考信号得到。
- 根据权利要求1所述的方法,其中,如果所述基站指示所述终端的上行发送波束是基于上行参考信号得到,所述上行发送波束指示信息中包括上行发送波束的编号,或者上行参考信号的指示信息;或者如果所述基站指示所述终端的上行发送波束是基于下行参考信号得到,所述上行发送波束指示信息中包括下行发送波束的编号,或者下行参考信号的指示信息,或者下行接收波束的指示信息。
- 根据权利要求1所述的方法,其中,在基站向终端发送上行发送波束指示信息之前,所述方法还包括:所述基站基于上行参考信号确定终端的上行发送波束,或所述基站基于上下行波束互易性确定终端的上行发送波束。
- 根据权利要求3所述的方法,其中,所述基站基于上行参考信号确定得到所述终端的上行发送波束,包括:所述基站接收所述终端通过多个候选上行发送波束发送的上行参考信号;所述基站通过所述上行参考信号,确定最佳上行发送波束。
- 根据权利要求4所述的方法,其中,每个候选上行发送波束的上行参考信号用该候选上行发送波束对应的波束赋形权值赋形之后发出。
- 根据权利要求1所述的方法,其中,在基站向终端发送上行发送波束指示信息之前,所述方法还包括:所述基站基于自身的测量结果确定波束类型指示信息,或者,所述基站基于自身的测量结果和所述终端上报的测量结果,确定波束类型指示信息。
- 根据权利要求6所述的方法,其中,所述基站基于自身的测量结果确定波束类型指示信息,包括:所述基站测量所述终端发送的上行参考信号,得到每个上行参考信号的接收质量;所述基站测量所述终端发送的上行信号,得到所述上行信号的接收质量,其中所述上行信号由终端采用基于下行参考信号得到的上行发送波束发送;如果有至少一个上行参考信号的接收质量高于所述上行信号的接收质量,所述基站选择令终端采用基于上行参考信号得到上行发送波束,否则,所述基站选择令终端基于下行参考信号得到上行发送波束。
- 根据权利要求6所述的方法,其中,所述基站基于自身的测量结果和所述终端上报的测量结果,确定波束类型指示信息,包括:所述基站测量所述终端发送的上行参考信号,得到每个上行参考信号的接收质量;所述基站接收所述终端上报的下行参考信号的接收质量;如果有至少一个上行参考信号的接收质量高于终端上报的所有下行参考信号的接收质量,所述基站选择令终端采用基于上行参考信号得到上行发送波束;如果有至少一个终端上报的下行参考信号的接收质量高于所有上行参考信号的接收质量,所述基站选择令终端基于下行参考信号得到上行发送波束。
- 根据权利要求2所述的方法,还包括:所述基站接收所述终端用确定的上行发送波束发送的上行信号。
- 根据权利要求9所述的方法,其中,所述基站接收所述终端用确定的上行发送波束发送的上行信号,包括:如果所述基站指示了所述终端基于上行参考信号得到上行发送波束,所述基站采用所述基站指示的上行发送波束对应的上行接收波束接收所述终端的上行信号;或者如果所述基站指示了所述终端基于下行参考信号得到上行发送波束,所述基站采用所述基站指示的下行发送波束对应的上行接收波束接收终端的上行信号。
- 一种上行发送波束确定方法,包括:终端接收基站发送的上行发送波束指示信息;所述终端根据上行发送波束指示信息确定上行发送波束;其中,所述上行发送波束指示信息中包含波束类型指示信息,所述波束类型指示信息用于指示终端的上行发送波束是基于上行参考信号得到的,或者所述波束类型指示信息用于指示终端的上行发送波束是基于下行参考信号得到。
- 根据权利要求11所述的方法,其中,如果所述基站指示所述终端的上行发送波束是基于上行参考信号得到,所述上行发送波束指示信息中包括上行发送波束的编号,或者上行参考信号的指示信息;或者如果所述基站指示所述终端的上行发送波束是基于下行参考信号得到,上行发送波束指示信息中包括下行发送波束的编号,或者下行参考信号的指示信息,或者下行接收波束的指示信息。
- 根据权利要求12所述的方法,还包括:如果上行发送波束指示信息指示终端基于上行参考信号得到上行发送波束,则终端根据上行发送波束的编号或者上行参考信号的指示信息,确定上行发送波束的权值。
- 根据权利要求13所述的方法,其中,所述终端根据上行发送波束的编号,确定上行发送波束的权值,包括:所述终端根据上行发送波束的编号和波束赋形权值之间的映射关系,确定上行发送波束的权值。
- 根据权利要求11所述的方法,还包括:如果上行发送波束指示信息指示终端基于下行参考信号确定上行发送波束,所述终端根据下行发送波束的编号或者下行参考信号的指示信息,确定上行发送波束的权值。
- 根据权利要求15所述的方法,其中,所述终端根据下行发送波束的编号或者下行参考信号的指示信息,确定上行发送波束的权值,包括:所述终端根据下行发送波束的编号或者下行参考信号的指示信息,确定 对应的下行接收波束;基于信道互易性由所述下行接收波束确定上行发送波束的权值。
- 一种上行发送波束确定装置,包括:发送模块,用于向终端发送上行发送波束指示信息;其中,所述上行发送波束指示信息中包含波束类型指示信息,所述波束类型指示信息用于指示终端的上行发送波束是基于上行参考信号得到的,或者所述波束类型指示信息用于指示终端的上行发送波束是基于下行参考信号得到。
- 根据权利要求17所述的装置,其中,如果基站指示所述终端的上行发送波束是基于上行参考信号得到,所述上行发送波束指示信息中包括上行发送波束的编号,或者上行参考信号的指示信息;或者如果基站指示所述终端的上行发送波束是基于下行参考信号得到,所述上行发送波束指示信息中包括下行发送波束的编号,或者下行参考信号的指示信息,或者下行接收波束的指示信息。
- 根据权利要求17所述的装置,还包括:第一确定模块,用于基于上行参考信号确定终端的上行发送波束,或基于上下行波束互易性确定终端的上行发送波束。
- 根据权利要求19所述的装置,其中,所述确定模块包括:接收单元,用于接收所述终端通过多个候选上行发送波束发送的上行参考信号;第一确定单元,用于通过所述上行参考信号,确定最佳上行发送波束。
- 根据权利要求20所述的装置,其中,每个候选上行发送波束的参考信号用该波束对应的波束赋形权值赋形之后发出。
- 根据权利要求17所述的装置,其中,所述装置还包括:第二确定模块,用于基于自身的测量结果确定波束类型指示信息,或者,基于自身的测量结果和所述终端上报的测量结果,确定波束类型指示信息。
- 根据权利要求22所述的装置,其中,所述第二确定模块包括:第一测量单元,用于测量所述终端发送的上行参考信号,得到每个上行 参考信号的接收质量;第二测量单元,用于测量所述终端发送的上行信号,得到所述上行信号的接收质量,其中所述上行信号由终端采用基于下行参考信号得到的上行发送波束发送;第一选择单元,用于如果有至少一个上行参考信号的接收质量高于上行信号的接收质量,选择令终端采用基于上行参考信号得到上行发送波束,否则,选择令终端基于下行参考信号得到上行发送波束。
- 根据权利要求22所述的装置,其中,所述第二确定模块包括:第三测量单元,用于测量所述终端发送的上行参考信号,得到每个上行参考信号的接收质量;第一接收单元,用于接收所述终端上报的下行参考信号的接收质量;第二选择单元,用于如果有至少一个上行波束参考信号的接收质量高于终端上报的所有下行参考信号的接收质量,选择令终端采用基于上行参考信号得到上行发送波束;如果有至少一个终端上报的下行参考信号的接收质量高于所有上行参考信号的接收质量,选择令终端基于下行参考信号得到上行发送波束。
- 根据权利要求18所述的装置,还包括:第一接收模块,用于接收所述终端用确定的上行发送波束发送的上行信号。
- 根据权利要求25所述的装置,其中,所述第一接收模块包括:第二接收单元,用于如果指示了所述终端基于上行参考信号得到上行发送波束,采用指示的上行发送波束对应的上行接收波束接收所述终端的上行信号;或者如果指示了所述终端基于下行参考信号得到上行发送波束,采用指示的下行发送波束对应的上行接收波束接收终端的上行信号。
- 一种上行发送波束确定装置,包括:第二接收模块,用于接收基站发送的上行发送波束指示信息;第三确定模块,用于根据上行发送波束指示信息确定上行发送波束;其中,所述上行发送波束指示信息中包含波束类型指示信息,所述波束 类型指示信息用于指示终端的上行发送波束是基于上行参考信号得到的,或者所述波束类型指示信息用于指示终端的上行发送波束是基于下行参考信号得到。
- 根据权利要求27所述的装置,其中,如果所述基站指示所述终端的上行发送波束是基于上行参考信号得到,所述上行发送波束指示信息中包括上行发送波束的编号,或者上行参考信号的指示信息;或者如果所述基站指示所述终端的上行发送波束是基于下行参考信号得到,上行发送波束指示信息中包括下行发送波束的编号,或者下行参考信号的指示信息,或者下行接收波束的指示信息。
- 根据权利要求27所述的装置,还包括:第四确定模块,用于如果上行发送波束指示信息指示终端基于上行参考信号得到上行发送波束,根据上行发送波束的编号或者上行参考信号的指示信息,确定上行发送波束的权值。
- 根据权利要求29所述的装置,其中,第四确定模块进一步,用于根据上行发送波束的编号和波束赋形权值之间的映射关系,确定上行发送波束的权值。
- 根据权利要求27所述的装置,还包括:第五确定模块,用于如果上行发送波束指示信息指示终端基于下行参考信号确定上行发送波束,根据下行发送波束的编号或者下行参考信号的指示信息,确定上行发送波束的权值。
- 根据权利要求31所述的装置,其中,所述第五确定模块包括:第二确定单元,用于根据下行发送波束的编号或者下行参考信号的指示信息,确定对应的下行接收波束;第三确定单元,用于基于信道互易性由所述下行接收波束确定上行发送波束的权值。
- 一种基站,包括第一存储器、第一处理器及存储在第一存储器上并可在第一处理器上运行的计算机程序,其特征在于,所述第一处理器执行所述计算机程序时实现如权利要求1~10中任一项所述上行发送波束确定方法中 的步骤。
- 一种终端,包括第二存储器、第二处理器及存储在第二存储器上并可在第二处理器上运行的计算机程序,其特征在于,所述第二处理器执行所述计算机程序时实现如权利要求11~16中任一项所述上行发送波束确定方法中的步骤。
- 一种计算机可读存储介质,其上存储有计算机程序,其中,所述程序被处理器执行时实现如权利要求1~10中任一项所述上行发送波束确定方法中的步骤。
- 一种计算机可读存储介质,其上存储有计算机程序,其中,所述程序被处理器执行时实现如权利要求11~16中任一项所述上行发送波束确定方法中的步骤。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113412587A (zh) * | 2019-02-14 | 2021-09-17 | 索尼集团公司 | 建立波束互易性的方法、相关无线装置以及相关网络节点 |
JP2022506127A (ja) * | 2018-11-01 | 2022-01-17 | ベイジン・ユニソック・コミュニケーションズ・テクノロジー・カンパニー・リミテッド | アンテナパネル決定方法、ユーザ端末、およびコンピュータ可読記憶媒体 |
EP3934346B1 (en) * | 2020-07-01 | 2024-08-07 | Nokia Technologies Oy | User equipment operation during an inactive state |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102373474B1 (ko) * | 2017-03-23 | 2022-03-11 | 삼성전자주식회사 | 무선 통신 시스템에서 데이터를 전송하기 위한 장치 및 방법 |
US11812449B2 (en) * | 2018-08-10 | 2023-11-07 | Qualcomm Incorporated | Active beam management, configuration, and capability signaling |
CN111586830B (zh) * | 2019-02-15 | 2021-09-14 | 成都华为技术有限公司 | 一种定位方法和通信装置 |
US20220295305A1 (en) * | 2019-09-06 | 2022-09-15 | Lg Electronics Inc. | Resource assignment method for sidelink |
CN111212478B (zh) * | 2019-12-30 | 2022-12-20 | 达闼机器人股份有限公司 | 确定通信资源的方法、装置、存储介质及电子设备 |
CN113225815B (zh) * | 2020-02-04 | 2023-04-07 | 维沃移动通信有限公司 | 一种确定波束信息的方法、终端及网络侧设备 |
WO2021179305A1 (zh) * | 2020-03-13 | 2021-09-16 | 华为技术有限公司 | 用于上行传输的方法和装置 |
WO2021189417A1 (zh) * | 2020-03-27 | 2021-09-30 | 北京小米移动软件有限公司 | 波束确定方法、装置和通信设备 |
JP7524607B2 (ja) | 2020-05-27 | 2024-07-30 | 富士通株式会社 | 無線装置 |
WO2024167249A1 (ko) * | 2023-02-08 | 2024-08-15 | 엘지전자 주식회사 | 빔 선택 동작 방법 및 장치 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101686110A (zh) * | 2008-09-26 | 2010-03-31 | 大唐移动通信设备有限公司 | 一种多输入多输出系统、及其数据传输的方法及装置 |
CN102754476A (zh) * | 2010-04-06 | 2012-10-24 | 上海贝尔股份有限公司 | Pusch的上行传输方法、和系统 |
CN103220024A (zh) * | 2013-04-18 | 2013-07-24 | 电子科技大学 | 一种多用户配对虚拟mimo系统的波束赋形算法 |
CN105940699A (zh) * | 2014-02-07 | 2016-09-14 | 株式会社Ntt都科摩 | 用户装置、基站以及通信方法 |
WO2017214969A1 (en) * | 2016-06-17 | 2017-12-21 | Nokia Technologies Oy | Enhanced uplink beam selection for massive mimo system |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20100046338A (ko) * | 2008-10-27 | 2010-05-07 | 삼성전자주식회사 | 이동통신 시스템의 공조 빔 형성 장치 및 방법 |
KR101800221B1 (ko) | 2011-08-11 | 2017-11-22 | 삼성전자주식회사 | 무선통신 시스템에서 빔 추적 방법 및 장치 |
WO2013058612A1 (en) * | 2011-10-19 | 2013-04-25 | Samsung Electronics Co., Ltd. | Uplink control method and apparatus in wireless communication system |
KR102140298B1 (ko) * | 2012-03-27 | 2020-07-31 | 삼성전자주식회사 | 무선 통신 시스템에서 빔 정보 송신 방법 및 장치 |
US9225478B2 (en) * | 2012-07-02 | 2015-12-29 | Intel Corporation | Supporting measurments and feedback for 3D MIMO with data transmission optimization |
KR101995266B1 (ko) * | 2012-08-17 | 2019-07-02 | 삼성전자 주식회사 | 빔포밍을 이용한 시스템에서 시스템 액세스 방법 및 장치 |
CN104734759B (zh) | 2013-12-20 | 2019-12-03 | 中兴通讯股份有限公司 | Mimo波束赋形通信系统中波束识别方法、相关设备及系统 |
JP2015164281A (ja) | 2014-01-31 | 2015-09-10 | 株式会社Nttドコモ | ユーザ装置、基地局、及び通信方法 |
KR102309726B1 (ko) * | 2014-07-10 | 2021-10-07 | 삼성전자 주식회사 | 빔 포밍 방식을 사용하는 무선 통신 시스템에서 통신 방법 및 시스템 |
US20190132850A1 (en) * | 2016-04-15 | 2019-05-02 | Alcatel Lucent | Method for base station, method for user device, base station, and user device |
JP6697630B2 (ja) * | 2016-07-13 | 2020-05-20 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて多重ビームを用いた信号送信方法及びそのための装置 |
CN106027181B (zh) * | 2016-07-15 | 2019-09-13 | 北京邮电大学 | 一种基于认知无线电技术的信道测量和反馈方法 |
KR102616419B1 (ko) * | 2016-10-12 | 2023-12-21 | 삼성전자주식회사 | 무선 통신 시스템에서 안테나 구성에 기반한 빔 탐색 장치 및 방법 |
CN108024365B (zh) * | 2016-11-03 | 2024-03-15 | 华为技术有限公司 | 一种信息传输方法及设备 |
US10601621B2 (en) * | 2017-01-06 | 2020-03-24 | Sharp Kabushiki Kaisha | User equipments, base stations and methods |
US10433312B2 (en) * | 2017-02-05 | 2019-10-01 | Lg Electronics Inc. | Method of performing uplink transmission in wireless communication system and apparatus therefor |
US11134452B2 (en) * | 2017-10-02 | 2021-09-28 | Lenovo (Singapore) Pte. Ltd. | Uplink power control |
-
2017
- 2017-03-17 CN CN201710161447.0A patent/CN108633006B/zh active Active
-
2018
- 2018-02-26 US US16/494,647 patent/US11510203B2/en active Active
- 2018-02-26 EP EP18768465.9A patent/EP3585116A4/en active Pending
- 2018-02-26 KR KR1020197030654A patent/KR102329571B1/ko active IP Right Grant
- 2018-02-26 WO PCT/CN2018/077259 patent/WO2018166345A1/zh unknown
- 2018-02-26 JP JP2019551400A patent/JP7273719B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101686110A (zh) * | 2008-09-26 | 2010-03-31 | 大唐移动通信设备有限公司 | 一种多输入多输出系统、及其数据传输的方法及装置 |
CN102754476A (zh) * | 2010-04-06 | 2012-10-24 | 上海贝尔股份有限公司 | Pusch的上行传输方法、和系统 |
CN103220024A (zh) * | 2013-04-18 | 2013-07-24 | 电子科技大学 | 一种多用户配对虚拟mimo系统的波束赋形算法 |
CN105940699A (zh) * | 2014-02-07 | 2016-09-14 | 株式会社Ntt都科摩 | 用户装置、基站以及通信方法 |
WO2017214969A1 (en) * | 2016-06-17 | 2017-12-21 | Nokia Technologies Oy | Enhanced uplink beam selection for massive mimo system |
Non-Patent Citations (1)
Title |
---|
See also references of EP3585116A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022506127A (ja) * | 2018-11-01 | 2022-01-17 | ベイジン・ユニソック・コミュニケーションズ・テクノロジー・カンパニー・リミテッド | アンテナパネル決定方法、ユーザ端末、およびコンピュータ可読記憶媒体 |
JP7230193B2 (ja) | 2018-11-01 | 2023-02-28 | ベイジン・ユニソック・コミュニケーションズ・テクノロジー・カンパニー・リミテッド | アンテナパネル決定方法、ユーザ端末、およびコンピュータ可読記憶媒体 |
US12004082B2 (en) | 2018-11-01 | 2024-06-04 | Beijing Unisoc Communications Technology Co., Ltd. | Method for determining better power consumption for antenna panels |
CN113412587A (zh) * | 2019-02-14 | 2021-09-17 | 索尼集团公司 | 建立波束互易性的方法、相关无线装置以及相关网络节点 |
CN113412587B (zh) * | 2019-02-14 | 2024-06-07 | 索尼集团公司 | 建立波束互易性的方法、相关无线装置以及相关网络节点 |
EP3934346B1 (en) * | 2020-07-01 | 2024-08-07 | Nokia Technologies Oy | User equipment operation during an inactive state |
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KR102329571B1 (ko) | 2021-11-22 |
EP3585116A4 (en) | 2020-02-26 |
US20210120536A1 (en) | 2021-04-22 |
JP2020512748A (ja) | 2020-04-23 |
CN108633006A (zh) | 2018-10-09 |
JP7273719B2 (ja) | 2023-05-15 |
KR20190132427A (ko) | 2019-11-27 |
EP3585116A1 (en) | 2019-12-25 |
CN108633006B (zh) | 2021-03-19 |
US11510203B2 (en) | 2022-11-22 |
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