WO2015077985A1 - 波束预编码方式上报方法、调度方法及设备 - Google Patents

波束预编码方式上报方法、调度方法及设备 Download PDF

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Publication number
WO2015077985A1
WO2015077985A1 PCT/CN2013/088166 CN2013088166W WO2015077985A1 WO 2015077985 A1 WO2015077985 A1 WO 2015077985A1 CN 2013088166 W CN2013088166 W CN 2013088166W WO 2015077985 A1 WO2015077985 A1 WO 2015077985A1
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WIPO (PCT)
Prior art keywords
service
beams
received signal
precoding
phase
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Ceased
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PCT/CN2013/088166
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English (en)
French (fr)
Inventor
王键
王建国
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Huawei Device Co Ltd
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Huawei Device Co Ltd
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Publication date
Application filed by Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Priority to PCT/CN2013/088166 priority Critical patent/WO2015077985A1/zh
Priority to JP2016535096A priority patent/JP6319754B2/ja
Priority to EP13898473.7A priority patent/EP3068156B1/en
Priority to US15/100,172 priority patent/US10051485B2/en
Priority to KR1020167017152A priority patent/KR101835245B1/ko
Priority to CN201380025693.3A priority patent/CN104937971B/zh
Publication of WO2015077985A1 publication Critical patent/WO2015077985A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636Feedback format
    • H04B7/0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/046Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a beam precoding method reporting method, a scheduling method, and a device. Background technique
  • a signal from a base station to a user equipment is transmitted through a physical antenna on the base station side.
  • the general wireless communication system in order to increase the system capacity and increase the coverage of the base station, the general wireless communication system widely uses the directional antenna technology for the antenna of the macro network base station instead of the omnidirectional antenna technology.
  • a diagram depicting the change in directional antenna gain as a function of horizontal or vertical direction is called a gain pattern.
  • the antenna of the base station can be further divided into a passive antenna and an active antenna.
  • the gain pattern can be changed in real time, that is, the high gain direction of the active antenna can be adjusted in real time to a region with a large amount of traffic, thereby increasing the throughput of the system.
  • cell splitting An important application of active antenna systems is cell splitting.
  • the so-called cell splitting is to split a cell in an active antenna system into two or more cells, and generally achieve cell splitting by replacing a wider beam with a plurality of narrower beams. If the cell is split in the horizontal direction, it is called horizontal split direction. If the cell is split in the vertical direction, it is called vertical split direction. After the cell is split, the original cell is divided into two or more cells.
  • the split cells use the same time, frequency, codeword and other physical resources, which is beneficial to improve the throughput of the system. Since one beam in one cell is split into multiple beams of multiple cells, and the same physical resource is multiplexed between multiple beams, there is interference between multiple beams, and the direct result of cell splitting The interference strength of the cell will increase. If the beam design for cell splitting is not optimized, the interference problem may even seriously reduce the throughput of the system. Summary of the invention
  • Embodiments of the present invention provide a beam precoding method reporting method, a scheduling method, and a device, which are used to mitigate interference between cells in a cell splitting scheme in an active antenna system, and improve system throughput.
  • the first aspect provides a method for reporting a beam precoding manner, including: The user equipment UE determines a beam precoding mode used by the UE, where the beam precoding mode is used to indicate a first beam combination usage result, where the first beam combination usage result is determined by the UE when the beam combination is used. How each beam is used;
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beam combination is used includes the beam selection. And one or both of the beam multiplexing and the beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation;
  • the beam selection means that at least one of the beams that is different from the service beam is required to serve other UEs on the time-frequency resource used by the service beam;
  • the beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the service beam;
  • the beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam;
  • the serving beam refers to a beam serving the UE in each beam.
  • the user equipment UE determines a beam precoding manner used by the UE, including:
  • the UE determines, according to the received signal strength of each beam, a beam with the highest received signal strength in each beam as the first serving beam, and the received signal strength of the first serving beam and the received signal strength of other beams.
  • the difference is respectively compared with the preset first threshold and the preset second threshold, and the usage manner of the other beams is determined according to the comparison result, and the first beam combination use result is obtained;
  • the first threshold is greater than the second threshold.
  • the UE the difference between the received signal strength of the first serving beam and the received signal strength of the other beam The values are compared with the preset first threshold and the preset second threshold respectively, and the usage manner of the other beams is determined according to the comparison result, including: The UE compares the first difference with the first threshold and the second threshold, where the first difference is a received signal strength of the first serving beam and a second one of the other beams The difference in received signal strength of the beam;
  • the second beam can serve other UEs on time-frequency resources used by the first serving beam
  • the first difference is smaller than the second threshold, determining that the second beam serves as the second serving beam for the UE;
  • the second beam cannot serve other UEs on time-frequency resources used by the first serving beam.
  • the method further includes:
  • the UE specifies the phase of operation of each serving beam according to the received signal phase of the at least two service beams, and uses the beam precoding manner to indicate the phase of each service beam operation.
  • the determining, according to a received signal phase of the at least two service beams, a phase of each serving beam operation And using the beam precoding method to indicate the phase of each service beam operation including:
  • the UE uses the beam precoding manner to indicate a phase of a received signal of the reference serving beam and a phase difference between a phase of the received signal of the reference serving beam and a phase of a received signal of the other serving beam.
  • the sending, by the UE, the beam precoding manner to a base station includes:
  • the UE performs matching according to the beam precoding manner in a preset beam precoding table, and obtains an index value corresponding to the beam precoding mode, where the beam precoding table stores various beam groups. The correspondence between the result and the index value;
  • the UE sends an index value corresponding to the beam precoding mode to the base station.
  • the that the UE sends the beam precoding mode to a base station including:
  • the UE sends the beam precoding manner to the base station before the RI subframe.
  • the second aspect provides a scheduling method, including:
  • the base station acquires a beam precoding mode used by the user equipment UE, where the beam precoding mode is used to indicate a first beam combination use result, where the first beam combination use result includes each beam determined by the UE when the beam combination is used. Way of use;
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beam combination is used includes the beam selection. And one or both of the beam multiplexing and the beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation;
  • the base station performs scheduling on the UE according to the beam precoding manner
  • the beam selection means that at least one of the beams that is different from the service beam is required to serve other UEs on the time-frequency resource used by the service beam;
  • the beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the service beam;
  • the beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam;
  • the serving beam refers to a beam serving the UE in each beam.
  • the acquiring, by the base station, a beam precoding mode used by the user equipment UE includes:
  • the base station Receiving, by the base station, an index value corresponding to the beam precoding mode sent by the UE; the base station according to the index value corresponding to the beam precoding mode in a preset beam precoding table And performing a matching, determining a beam combination use result in the index value matching corresponding to the beam precoding mode; wherein, the beam precoding table stores a correspondence between various beam combination use results and an index value.
  • the performing, by the base station, the UE, according to the beam precoding manner includes:
  • the base station allocates time-frequency resources for the service beam, transmits data to the UE over the time-frequency resource through the service beam, and transmits data through the other beams according to usage patterns of other beams.
  • the performing, by the base station, the data by using the other beam according to the manner of using other beams includes:
  • the base station prohibits the use of the other beam on the time-frequency resource used by the serving beam.
  • Other UEs transmit data;
  • the base station simultaneously uses the other beams on the time-frequency resources used by the serving beam Transfer data to other UEs.
  • the method includes beam cooperation. Before the base station transmits data to the UE by using the serving beam on the time-frequency resource, the method further includes:
  • the base station Determining, by the base station, a phase of operation of each service beam according to the beam precoding manner, and if the service beam is not working on the determined phase, the base station adjusts a phase of the service beam, so that The service beam operates on the determined phase.
  • the determining, by the base station, the phase of the operation of each serving beam according to the beam precoding manner includes: Determining, by the base station, the received signal phase of the reference service beam and the phase difference between the received signal phase of the reference service beam and the received signal phase of the other serving beam according to the beam precoding manner;
  • the base station uses a phase of the received signal of the reference service beam as a phase of the reference service beam, and a phase of the received signal of the reference service beam and a phase of the received signal of the reference service beam with the other service beam The difference in phase of the received signals is added to obtain the phase of operation of the other service beams.
  • the third aspect provides a user equipment UE, including:
  • a determining module configured to determine a beam precoding mode used by the UE, where the beam precoding mode is used to indicate a first beam combining use result, where the first beam combining use result is included by the UE when the beam combination is used Determining how each beam is used;
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beam combination is used includes the beam selection. And one or both of the beam multiplexing and the beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation;
  • a sending module configured to send the beam precoding manner to the base station, to enable the base station to schedule the UE according to the beam precoding manner
  • the beam selection means that at least one of the beams that is different from the service beam is required to serve other UEs on the time-frequency resource used by the service beam;
  • the beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the service beam;
  • the beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam;
  • the serving beam refers to a beam serving the UE in each beam.
  • the determining, by the UE, a beam precoding manner specifically includes:
  • the first threshold is greater than the second threshold.
  • the difference between the received signal strength of the first serving beam and the received signal strength of other beams Comparing with the preset first threshold and the preset second threshold respectively, determining how to use other beams according to the comparison result specifically including:
  • the first difference is a received signal strength of the first serving beam and a second beam received in the other beam a difference in signal strength; if the first difference is greater than the first threshold, determining that the second beam may serve other UEs on a time-frequency resource used by the first serving beam, if the first The difference is less than the second threshold, determining that the second beam serves as the second serving beam for the UE, and if the first difference is greater than the second threshold and less than the first threshold, determining the The second beam cannot serve other UEs on the time-frequency resources used by the first serving beam.
  • the UE further includes: a specifying module, configured to specify a phase of operation of each serving beam according to a phase of a received signal of the at least two service beams when the manner of combining the beams includes beam cooperation, and use the beam precoding manner to represent each The phase of the service beam operation.
  • a specifying module configured to specify a phase of operation of each serving beam according to a phase of a received signal of the at least two service beams when the manner of combining the beams includes beam cooperation, and use the beam precoding manner to represent each The phase of the service beam operation.
  • the determining, according to a received signal phase of the at least two service beams, a phase of each serving beam operation And using the beam precoding manner to indicate the phase of each service beam operation specifically including:
  • a service beam from the at least two service beams as a reference service beam, obtaining a difference between a received signal phase of the reference service beam and a received signal phase of other service beams, and expressing the The received signal phase of the reference service beam and the difference between the received signal phase of the reference serving beam and the received signal phase of the other serving beams.
  • the The coding mode is sent to the base station, and specifically includes:
  • the beam precoding table stores a correspondence between various beam combination use results and index values.
  • the beam precoding manner is sent to the base station; or before the RI subframe, the beam precoding manner is sent to the base station.
  • a fourth aspect provides a base station, including:
  • An acquiring module configured to obtain a beam precoding mode used by the user equipment UE, where the beam precoding mode is used to indicate a first beam combining use result, where the first beam combining use result is included by the UE when the beam combination is used Determining how each beam is used;
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beam combination is used includes the beam selection. And one or both of the beam multiplexing and the beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation;
  • a scheduling module configured to schedule the UE according to the beam precoding manner; where the beam selection refers to a time frequency that requires at least one beam different from the serving beam to be used in the serving beam Serving other UEs on resources;
  • the beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the service beam;
  • the beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam;
  • the serving beam refers to a beam serving the UE in each beam.
  • the scheduling, by the beam precoding manner, the UE includes:
  • the beam Determining, according to the first beam combination usage result indicated by the beam precoding manner, a service beam of the UE and other beam usage manners from each of the beams, and allocating time-frequency resources to the service beam, by using the service
  • the beam transmits data to the UE on the time-frequency resource and transmits data through the other beam according to the manner in which other beams are used.
  • the transmitting, by using the other beam, according to the manner of using other beams includes:
  • the data cannot be transmitted to other UEs on the time-frequency resources used by the service beam by using the other beams when data is not transmitted to other UEs on the time-frequency resources used by the service beam.
  • Data; and the other beams are used in the following manner: when data is simultaneously transmitted to other UEs on the time-frequency resources used by the service beam, the other beams are simultaneously used on the time-frequency resources used by the service beams. Transfer data to other UEs.
  • the scheduling module is further configured to use the beam
  • the method of combining includes beam cooperation, determining a phase of each service beam operation according to the beam precoding manner before transmitting data to the UE over the time-frequency resource by using the service beam, if The serving beam is not operating on the determined phase, and the phase of the serving beam is adjusted to operate the serving beam on the determined phase.
  • the determining, according to the beam precoding mode, determining a phase of operation of each serving beam specifically:
  • a fifth aspect provides a user equipment UE, including:
  • a processor configured to determine a beam precoding mode used by the UE, where the beam precoding mode is used to indicate a first beam combination use result, where the first beam combination use result is included by the UE when the beam combination is used Determining how each beam is used;
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beam combination is used includes the beam selection. And one or both of the beam multiplexing and the beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation;
  • a transmitter configured to send the beam precoding manner to a base station, to enable the base station to schedule the UE according to the beam precoding manner
  • the beam selection means that at least one of the beams that is different from the service beam is required to serve other UEs on the time-frequency resource used by the service beam;
  • the beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the service beam;
  • the beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam;
  • the serving beam refers to a beam serving the UE in each beam.
  • the UE further includes: a power measurement circuit, configured to measure a received signal strength of the beams;
  • Determining the beam precoding mode used by the UE specifically: determining, according to the received signal strength of each beam, a beam with the highest received signal strength in each beam as the first serving beam, and the first The difference between the received signal strength of the service beam and the received signal strength of the other beam is compared with a preset first threshold and a preset second threshold, respectively, and the manner of using other beams is determined according to the comparison result, and the first beam is obtained. Combining the use result, and expressing the first beam combination use result by using beam precoding; The first threshold is greater than the second threshold.
  • the difference between the received signal strength of the first serving beam and the received signal strength of other beams Comparing with the preset first threshold and the preset second threshold respectively, determining how to use other beams according to the comparison result specifically including:
  • the first difference is a received signal strength of the first serving beam and a second beam received in the other beam a difference in signal strength; if the first difference is greater than the first threshold, determining that the second beam may serve other UEs on a time-frequency resource used by the first serving beam, if the first The difference is less than the second threshold, determining that the second beam serves as the second serving beam for the UE, and if the first difference is greater than the second threshold and less than the first threshold, determining the The second beam cannot serve other UEs on the time-frequency resources used by the first serving beam.
  • the processor is further used to And determining, according to the received signal phase of the at least two service beams, a phase of each service beam operation, and using the beam precoding manner to indicate that each service beam works, when the manner in which the beams are used in combination includes beam cooperation. Phase.
  • the determining, according to a received signal phase of the at least two service beams, a phase of each serving beam operation And using the beam precoding manner to indicate the phase of each service beam operation specifically including:
  • a service beam from the at least two service beams as a reference service beam, obtaining a difference between a received signal phase of the reference service beam and a received signal phase of other service beams, and expressing the The received signal phase of the reference service beam and the difference between the received signal phase of the reference serving beam and the received signal phase of the other serving beams.
  • the processor is further configured to perform matching in a preset beam precoding table according to the beam precoding manner, to obtain the beam precoding manner.
  • the sending the beam precoding mode to the base station includes:
  • the index value corresponding to the beam precoding mode is sent to the base station; wherein the beam precoding table stores a correspondence between various beam combination usage results and index values.
  • the beam precoding manner is sent to the base station; or before the RI subframe, the beam precoding manner is sent to the base station.
  • a sixth aspect provides a base station, including:
  • a processor configured to obtain a beam precoding mode used by the user equipment UE, and perform scheduling on the UE according to the beam precoding manner; where the beam precoding mode is used to indicate a first beam combination use result, where The first beam combining use result includes a manner of using each beam determined by the UE when the beam combination is used;
  • the total number of beams is two, and the manner in which the beams are combined includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is three, the manner in which the beam combination is used includes the beam selection, One or both of the beam multiplexing and the beam cooperation. If the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam cooperation. At least one of them;
  • the beam selection refers to requiring that at least one beam different from the serving beam in each beam cannot serve other UEs on the time-frequency resource used by the service beam;
  • the beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the service beam;
  • the beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam;
  • the serving beam refers to a beam serving the UE in each beam.
  • the base station further includes:
  • a receiver configured to receive an index value corresponding to the beam precoding mode sent by the UE, where the acquiring a beam precoding mode used by the user equipment UE includes: And performing, according to the index value corresponding to the beam precoding mode received by the receiver, matching, in a preset beam precoding table, determining a beam combination use result in the index value matching corresponding to the beam precoding mode;
  • the beam precoding table stores a correspondence between various beam combination use results and index values.
  • the base station further includes: a transmitter
  • the scheduling of the UE according to the beam precoding manner includes: determining, according to the first beam combination usage result indicated by the beam precoding manner, determining a service beam of the UE from each beam, and other a manner of using a beam, allocating time-frequency resources to the service beam, and controlling the transmitter to transmit data to the UE on the time-frequency resource through the service beam, and controlling the transmitter according to other beams
  • the mode of use transmits data through the other beams;
  • the transmitter configured to transmit data to the UE on the time-frequency resource by using the service beam, and transmit the other beam according to the usage manner of the other beam, under the control of the processor. data.
  • the controlling, by the transmitter, the data is transmitted by using the other beam according to the manner of using other beams, including :
  • the other beam is used in the following manner: when the data cannot be transmitted to other UEs on the time-frequency resource used by the serving beam, the transmitter is prohibited from using the other beam on the time-frequency resource used by the serving beam. Transmitting data to other UEs; and using the other beams in a manner of: to simultaneously transmit data to other UEs on time-frequency resources used by the serving beam, controlling the transmitter to pass the other beams in the The time-frequency resources used by the service beam simultaneously transmit data to other UEs.
  • the processor is further configured to use the beam
  • the combined use includes beam cooperation, before controlling the transmitter to transmit data to the UE over the time-frequency resource by using the service beam, determining, according to the beam pre-coding manner, working for each service beam Phase, if the serving beam is not operating on the determined phase, adjusting the phase of the serving beam to operate the serving beam on the determined phase.
  • the determining, according to the beam precoding manner, determining a phase of operation of each service beam specifically:
  • Determining, according to the beam precoding manner, a phase difference between a received signal phase of the reference service beam and a phase of the received signal of the reference service beam and a received signal phase of the other serving beam, and the phase of the received signal of the reference service beam is taken as Determining a phase of the reference service beam operation, and adding a received signal phase of the reference service beam and a received signal phase of the reference service beam to a difference of received signal phases of the other serving beams to obtain the other service The phase of the beam operation.
  • the beam precoding method reporting method, the scheduling method, and the device provided by the embodiment of the present invention the user equipment determines the usage manner of each beam when the beam combination is used to form a first beam combination use result, and indicates the first beam combination by using a beam precoding manner. The result is used, and then the beam precoding mode is sent to the base station, so that the base station schedules the user equipment according to the beam precoding manner.
  • the beam combination usage method used in the process of determining the beam precoding mode is not limited to beam multiplexing, but includes beam selection, beam multiplexing, and beam cooperation, so that the UE can perform interference according to the beam. Select different beam combination modes. For example, when the interference between beams is small, beam multiplexing can be used to improve the throughput of the system. When the interference between beams is relatively large, beam selection or beam cooperation is used. Other methods, to avoid interference between the beams, improve the strength of the useful signal, thereby increasing the throughput of the system.
  • FIG. 1 is a flowchart of a method for reporting a beam precoding method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a sequence of reporting RI, BMI, PMI, and CQI by a UE to a base station according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a scheduling method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a UE according to an embodiment of the present disclosure
  • FIG. 4b is another UE according to an embodiment of the present invention.
  • FIG. 5 is still another UE according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another base station according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for reporting a beam precoding method according to an embodiment of the present invention. As shown in Figure 1, the method includes:
  • the user equipment determines the beam precoding mode used by the UE, and the beam precoding mode is used to indicate the first beam combination use result, and the first beam combination use result is included in the beam combination use.
  • the manner in which the beam combination is used includes one or two of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is greater than or equal to 4, the manner in which the beams are combined includes beam selection, beam multiplexing, and beam cooperation. At least one of them.
  • each beam may include all beams transmitted by the base station, or may only include the actually used beams.
  • the base station transmits a total of 10 beams, but only 5 are actually used, and the other 5 are always idle, then In this case, “each beam” may include only those 5 actually used beams.
  • the UE sends the foregoing beam precoding manner to the base station, so that the base station performs scheduling on the UE according to the beam precoding manner.
  • an active antenna array can spatially generate beams of different orientations to achieve cell splitting. Therefore, for AAS, cell splitting can be performed in the vertical direction. Vertically split cells can be reused by the same time Frequency resources increase system capacity.
  • Frequency resources increase system capacity.
  • the transition region of the beam there is overlap between the beams, and since the gains of the beams in this transition region are not much different, the mutual interference is also large, which makes the signal to noise of the UE relatively low, and further Reduce the throughput of the system and affect the gain of the vertical split direction of the cell.
  • the present embodiment provides a beam precoding method for reporting, the UE determines the used beam precoding mode, and then reports the beam precoding mode to the base station, and the base station performs the UE according to the beam precoding mode.
  • Schedule the UE scheduling the UE according to the beam precoding manner mainly refers to determining the serving beam of the UE based on the beam precoding manner, and allocating time-frequency resources for the serving beam of the UE, and when the service beam is allocated.
  • the UE may determine a beam precoding mode to be used according to interference between the beams.
  • the beam precoding mode used by the UE is used to indicate a first beam combining use result
  • the first beam combining use result includes a manner of using each beam determined by the UE when the beam combination is used. Since the manner in which the beam combination is used in this embodiment does not include only beam multiplexing as in the prior art, but includes beam selection, beam multiplexing, and beam cooperation, the first beam combination uses the results of each beam included. The usage is no longer limited to multiplexing one way.
  • the UE can flexibly select a combination of the beams according to the interference between the beams. For example, when the interference between the beams is small, the beam multiplexing mode can be selected. In addition, the throughput of the system is improved. When the interference between the beams is large, other methods such as beam selection or beam cooperation may be selected to avoid interference between the beams, improve the strength of the useful signal, and thereby improve the throughput of the system.
  • the manner in which the beam combination used in this embodiment is used may be one of beam selection, beam multiplexing, and beam cooperation.
  • the manner in which the beam combination used in this embodiment is used may also be a combination of any two of beam selection, beam multiplexing, and beam cooperation.
  • the manner in which the beam combination used in this embodiment is used may also be a combination of beam selection, beam multiplexing, and beam cooperation.
  • the manner in which the beams are combined may be determined to some extent by the number of beams. For example, if the total number of beams is two, the beam combination can be used in one of beam selection, beam multiplexing, and beam cooperation.
  • the combination of beam combining may be any one of beam selection, beam multiplexing, and beam cooperation, or a combination of any two. If the total number of beams is greater than or equal to 4, the manner in which the beams are combined may be at least one of beam selection, beam multiplexing, and beam cooperation.
  • beam selection refers to requiring at least one of each beam.
  • a beam different from the serving beam cannot serve other UEs on the time-frequency resources used by the serving beam; wherein the serving beam refers to a beam serving the UE.
  • the serving beam refers to a beam serving the UE.
  • beam 0 of the three beams serves as a serving beam for the UE
  • at least one beam in beam 1 and beam 2 cannot serve other UEs on the time-frequency resources used by beam 0.
  • beam 1 of the 3 beams is served as a serving beam for the UE, then at least one beam in beam 0 and beam 2 cannot serve other UEs on the time-frequency resources used by beam 1.
  • beam 2 of the three beams serves as a serving beam for the UE
  • at least one beam in beam 0 and beam 1 cannot serve other UEs on the time-frequency resources used by beam 2.
  • beam 0 and beam 1 there are two beams, beam 0 and beam 1, respectively.
  • beam 0 of the two beams serves as a serving beam for the UE
  • beam 1 cannot serve other UEs on the time-frequency resources used by beam 0.
  • beam 0 cannot serve other UEs on the time-frequency resources used by beam 1.
  • beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the serving beam. For example, assume that there are 3 beams, beam 0, beam 1 and beam 2. For example, assuming that beam 0 of the three beams serves as a serving beam for the UE, at least one of beam 1 and beam 2 is to serve other UEs simultaneously on the time-frequency resources used by beam 0. For another example, if beam 1 of the three beams is served as a serving beam for the UE, at least one of beam 0 and beam 2 is to serve other UEs simultaneously on the time-frequency resources used by beam 1.
  • beam 2 of the three beams is served as a serving beam for the UE, at least one of beam 0 and beam 1 is to serve other UEs simultaneously on the time-frequency resources used by beam 2.
  • there are two beams namely beam 0 and beam 1.
  • beam 0 of the two beams is served as a serving beam for the UE, then beam 1 is to serve other UEs simultaneously on the time-frequency resources used by beam 0.
  • beam 0 is to serve other UEs simultaneously on the time-frequency resources used by beam 1.
  • beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam. For example, assume that there are 3 beams, which are beam 0, beam 1 and beam 2.
  • a beam cooperation mode can select beam 0 and beam 1 as service beams to serve the UE, that is, beam 0 and beam 1 use the same time-frequency resource to transmit signals for the UE.
  • the beam cooperation mode can also select beam 1 and beam 2 as service beams to serve the UE, that is, beam 1 and beam 2 use the same time-frequency resource to transmit signals for the UE.
  • the beam selection mode can select beam 0 and beam 1 as service beams to serve the UE, that is, beam 0 and beam 1 use the same time-frequency resource to transmit signals for the UE.
  • the manner of beam combining and beam multiplexing combination, the manner of beam selection and beam cooperation combination, the manner of beam multiplexing and beam cooperation combination, and the meaning of beam selection, beam multiplexing and beam cooperation combination may be performed by the above beam
  • the meanings of selection, beam multiplexing, and beam selection are directly superimposed.
  • the combination of beam selection and beam multiplexing means that at least one beam different from the service beam in each beam cannot serve other UEs on the time-frequency resources used by the service beam, and at least one different from The beam of the serving beam serves other UEs simultaneously on the time-frequency resources used by the serving beam.
  • the beam selection and beam cooperation combination means that at least two beams using the same time-frequency resource in each beam are required as the service beam, and at least one beam different from the service beam cannot be used on the time-frequency resource used by the service beam.
  • the combination of beam cooperation and beam multiplexing means that at least two beams using the same time-frequency resource in each beam are required as the service beam, and at least one beam different from the service beam is used on the time-frequency resource used by the service beam. At the same time serve other UEs. Other combinations are not listed one by one.
  • the interference between the beams can be represented by the magnitude relationship between the received signal strengths of the beams.
  • Step 101 The UE determines the beam precoding mode used by the UE. The UE determines, according to the received signal strength of each beam, a beam with the highest received signal strength as the first service beam to serve the UE, and then the first The difference between the received signal strength of one service beam and the received signal strength of other beams is compared with a preset first threshold and a second threshold, respectively, and the use manner of other beams is determined according to the comparison result, thereby obtaining the first beam combination use result.
  • the beam precoding method is used to indicate the first beam combination use result.
  • the UE first measures the received signal strength of each beam in the AAS antenna system, where the received signal strength may be represented by a received power, such as Reference Signal Receiving Power (RSRP), but is not limited thereto. Then, the UE determines the manner in which the beam combination is used and the usage mode of each beam according to the relationship between the received signal strengths of the beams. It is assumed that the UE has two thresholds, a first threshold and a second threshold, wherein the first threshold is greater than the second threshold, for example, the first threshold may be 10 dB, and the second threshold may be 3 dB, but Not limited to this. After power measurement, the UE first selects the beam with the highest received signal strength as the UE's first A service beam.
  • RSRP Reference Signal Receiving Power
  • the difference between the received signal strength of the first serving beam and the received signal strength of the second beam in the other beams is obtained as a first difference, where the second beam may be any of the other beams;
  • the first difference is compared with the first threshold and the second threshold respectively; if the first difference is greater than the first threshold, that is, the received signal strength of the second beam is less than the received signal strength of the first serving beam by more than 10 dB, The UE may consider that the second beam has less interference to the first serving beam, and determine that the second beam can serve other UEs on the time-frequency resource used by the first serving beam, so the UE may select a beam multiplexing manner; If the difference is less than the second threshold, that is, the received signal strength of the second beam is less than 3 dB less than the received signal strength of the first serving beam, the UE considers that the power value of the second beam and the first serving beam to the UE is equal, determining The second beam can serve the UE as the second serving beam, so the UE can select the mode
  • the UE selects beam 0 with the largest received power as its own serving beam, due to the received power of beam 0 and the received power of beam 1.
  • the difference is greater than the first threshold, that is, 10 dB.
  • the UE considers that the interference of the beam 1 to the beam 0 is small. Therefore, it is determined that the beam 1 can simultaneously serve other UEs on the time-frequency resources used by the beam 0, and the beam 0 and the beam 1 are combined.
  • the method used is beam multiplexing.
  • the mode of use of the beam 0 is to serve the UE as the serving beam of the UE
  • the mode of use of the beam 1 is to serve other UEs on the time-frequency resource used by the beam 0.
  • the UE selects beam 0 with the largest received power as its own serving beam, because the difference between the received power of beam 0 and the received power of beam 1 It is less than the second threshold, that is, 3dB, indicating that beam 1 and beam 0 are equivalent to the power value of the UE, and beam 1 can also serve as the serving beam of the UE. Therefore, the UE also selects beam 1 as the serving beam, and then beam 0 and beam 1 are used in combination. The way is beam cooperation. In this embodiment, both beam 0 and beam 1 are used to serve the UE as a serving beam of the UE.
  • the UE adds the signal strengths from the service beams to obtain the final received signal strength.
  • the phase difference of the received signals on each service beam The smaller the better, the most ideal situation is that the received signals on each service beam are in phase.
  • the UE may also specify the phase of each service beam operation according to the received signal phase of the at least two service beams, and use beam precoding to indicate the operation of each service beam. Phase, in order to get as large a received signal strength as possible.
  • the UE can also specify the phase in which the beam 0 and the beam 1 work, and use the beam precoding to indicate the phase of the beam 0 and the beam 1 working, and then report the phase of the service beam to the base station by using the beam precoding method, so that the base station can
  • the service beam is operated on the phase specified by the UE, so that the UE can obtain the largest possible received signal strength through beam 0 and beam 1.
  • the UE specifies the phase of each serving beam according to the received signal phase of the at least two service beams
  • the embodiment of indicating the phase of each service beam operation by using the beam precoding manner includes: determining, by the UE, the service beams A service beam is used as a reference service beam to obtain a difference between a received signal phase of the reference service beam and a received signal phase of the other serving beam; and then a beam precoding manner is used to indicate a phase of the received signal of the reference service beam and the reference service beam The difference between the phase of the received signal and the phase of the received signal of the other serving beams.
  • the phase of the received signal of the reference service beam can be directly used as the phase of the reference service beam, and the phase of the other service beam operation can be obtained according to the phase of the received signal of the reference service beam and the difference.
  • the UE can measure the phase of the received signal of each beam in addition to the received signal strength of each beam.
  • the measurement of the phase of the received signal of each beam by the UE belongs to the prior art and will not be described in detail herein.
  • the UE selects beam 0 with the largest received power as its own serving beam, because the difference between the received power of beam 0 and beam 1 is greater than the second.
  • the threshold is smaller than the first threshold, indicating that the interference of the beam 1 to the beam 0 is large, but the threshold of the UE can be served, and the UE determines that the beam 1 cannot serve other UEs on the time-frequency resources used by the beam 0.
  • the combination of beam 0 and beam 1 is beam selection.
  • the mode of use of the beam 0 is that the serving beam of the UE serves the UE
  • the mode of use of the beam 1 is that the time-frequency resource used by the beam 0 cannot serve other UEs.
  • the UE selects the beam 0 with the largest receiving power as its own serving beam, because the difference between the received power of beam 0 and beam 1 is greater than the first threshold, and the received power of beam 0 and beam 2 The difference is also greater than the first threshold.
  • the UE considers that beam 1 and beam 2 have less interference to beam 0. Therefore, it can be determined that beam 1 and beam 2 can simultaneously serve other UEs on the time-frequency resources used by beam 0. 0.
  • the combination of beam 1 and beam 2 is beam multiplexing.
  • the mode of using the beam 0 is to serve the UE as the serving beam of the UE, and the mode of using the beam 1 and the beam 2 is to serve other UEs on the time-frequency resources used by the beam 0.
  • the UE selects beam 0 with the largest received power as its own serving beam, since beam 0 and beam 1
  • the difference between the received power and the received power of the beam 2 is smaller than the second threshold, indicating that the power of the beam 1, the beam 2 and the beam 0 are equal to the UE, and the beam 1 and the beam 2 are also It can serve as the service beam of the UE, and then the UE selects beam 1 and beam 2 as their own service beams, and the combination of beam 0, beam 1 and beam 2 is beam cooperation.
  • beam 0, beam 1 and beam 2 are all used to serve the UE as the serving beam of the UE.
  • the UE may also specify the phase in which beam 0, beam 1 and beam 2 operate, so that the phase difference between beam 0, beam 1 and beam 2 operation is as small as possible in order to obtain the largest possible received signal strength.
  • the received power of beam 0 is _90 dBm
  • the received power of beam 1 is _95 dBm
  • the received power of beam 2 is -94 dBm.
  • the UE selects beam 0 with the largest received power as its own serving beam, since beam 0 and beam 1
  • the difference between the received power is greater than the second threshold and is less than the first threshold
  • the difference between the received power of the beam 0 and the beam 2 is greater than the second threshold, and is less than the first threshold, indicating that the beam 1 and the beam 2 are opposite to the beam 0.
  • the interference is large, but they do not reach the threshold that can serve the UE.
  • the UE determines that beam 1 and beam 2 cannot serve other UEs on the time-frequency resources used by beam 0, and beam 0, beam 1 and beam 2
  • the combination used is beam selection.
  • the use of the beam 0 is to serve the UE as the serving beam of the UE, and the use of the beam 1 and the beam 2 are both unable to serve other UEs on the time-frequency resources used by the beam 0.
  • the UE selects beam 0 with the largest received power as the service beam, due to the reception of beam 0 and beam 1.
  • the power difference is smaller than the second threshold, indicating that beam 1 and beam 0 are equivalent to the power value of the UE, and beam 1 can also serve as the serving beam of the UE, so the UE also selects the beam.
  • the combination of beam 0 and beam 1 is beam cooperation; and the difference between the received power of beam 0 and beam 2 is greater than the first threshold, and the UE considers that beam 2 has less interference to beam 0, so It is determined that the beam 2 can simultaneously serve other UEs on the time-frequency resources used by the beam 0, and the combination of the beam 0 and the beam 2 is beam multiplexing, so that the combination of the beam 0, the beam 1 and the beam 2 in this embodiment can be seen.
  • the mode of use is a combination of beam cooperation and beam multiplexing.
  • beam 0 and beam 1 are used to serve the UE as a serving beam of the UE, and beam 2 is used to serve other UEs on the time-frequency resource used by beam 0.
  • the UE may also specify the phase in which the beam 0 and the beam 1 operate, so that the phase difference between the beam 0 and the beam 1 operation is as small as possible in order to obtain the largest possible received signal strength.
  • the UE selects beam 0 with the largest received power as the serving beam of the UE, due to the received power of beam 0.
  • the difference between the received power and the received power of the beam 1 is smaller than the second threshold.
  • the beam 1 and the beam 0 are equivalent to the power value of the UE.
  • the beam 1 can also serve as the serving beam of the UE. Therefore, the UE also selects the beam 1 as the serving beam, and the beam 0
  • the method used in combination with the beam 1 is beam cooperation.
  • the UE determines that the beam 2 cannot serve other UEs on the time-frequency resource used by the beam 0, and the combination of the beam 0 and the beam 2 is beam selection.
  • the beam 0, the beam 1 and The combination of beam 2 is a combination of beam cooperation and beam selection.
  • the use of the beam 0 and the beam 1 is to serve the UE as the serving beam of the UE, and the beam 2 is used in such a manner that it cannot serve other UEs on the time-frequency resources used by the beam 0.
  • the UE may also specify the phase in which beam 0 and beam 1 operate, so that the phase difference between beam 0 and beam 1 operation is as small as possible in order to obtain the largest possible received signal strength.
  • the UE selects beam 0 with the largest received power as its own serving beam, since beam 0 and beam 1 The difference of the received power is greater than the second threshold and is less than the first threshold, indicating that the interference of the beam 1 to the beam 0 is large, but the threshold of the UE can be served, and the UE determines that the beam 1 is used by the beam 0. If the frequency resource cannot be served to other UEs, the combination of beam 0 and beam 1 is beam selection.
  • the other UEs can be simultaneously served on the time-frequency resources used by the beam 0.
  • the combination of the beam 0 and the beam 2 is beam multiplexing.
  • the combination of beam 0, beam 1 and beam 2 is beam selection.
  • the mode of using the beam 0 is to serve the UE as the serving beam of the UE
  • the mode of using the beam 1 is that the UE cannot serve other UEs on the time-frequency resources used by the beam 0
  • the mode of using the beam 2 is Serving other UEs on the time-frequency resources used by Beam 0.
  • the first threshold listed above is 10dB, and the second threshold is 3dB.
  • the values of these two thresholds can be optimized according to the network deployment.
  • the UE determines the usage of each beam to obtain the first beam combination usage result, and then the first beam combination usage result may be represented by a beam precoding manner.
  • the UE is pre-configured with a beam precoding table, where the beam precoding table stores a correspondence between various beam combination usage results and index values, and various types in the beam precoding table.
  • the result of beam combining use is represented by beam precoding.
  • Table 1 and Table 2 the implementation of the beam precoding table is shown in Table 1 and Table 2, respectively.
  • the symbols in Table 1 and Table 2 are as follows: "1" represents the service beam; represents the beam that can serve other UEs on the time-frequency resources used by the service beam in the beam multiplexing mode; "0" represents the beam selection mode.
  • the beam serving other UEs on the time-frequency resources used by the service beam; "j" represents the additional service beam in the beam cooperation mode, and the phase difference between the service beam and the service beam represented by "1" is 90°.
  • Representing the additional service beam in the beam cooperation mode which also reflects the phase difference between the service beam and the service beam represented by "1” by -90°; represents the additional service beam in the beam cooperation mode, and simultaneously represents the service beam
  • the phase difference from the service beam represented by "1” is 180 °.
  • the symbols used to represent the usage of each beam are not limited to "0", “1", “j", , and " used in Tables 1 and 2.
  • the result of the beam combination corresponding to the index value 0 indicates that: beam 0 is selected as the serving beam of the UE, and beam 1 cannot serve other UEs on the time-frequency resource used by beam 0; the corresponding "10" is Corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 1 indicates that the beam 1 is selected as the serving beam of the UE, and the beam 0 cannot serve other UEs on the time-frequency resource used by the beam 1; the corresponding "01" is the corresponding beam precoding. the way.
  • the result of the beam combination corresponding to the index value 2 indicates that: beam 0 is selected as the serving beam of the UE, and beam 1 is to serve other UEs simultaneously on the time-frequency resource used by beam 0; corresponding "1*" That is, the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 3 indicates that the beam 1 is selected as the serving beam of the UE, and the beam 0 is to serve other UEs simultaneously on the time-frequency resources used by the beam 1; correspondingly, the corresponding beam precoding mode is adopted.
  • the result of the beam combination use corresponding to the index value 4 indicates: Select beam 0 and beam 1 as the service beam of the UE, and beam 0 and beam 1 use the same time-frequency resource, and the phases of beam 0 and beam 1 are not Adjustment; the corresponding "11" is the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 5 is: Select beam 0 and beam 1 as the service beam of the UE, and beam 0 and beam 1 use the same time-frequency resource, the phase of beam 0 is not adjusted, and the phase of beam 1 is adjusted by 90 °
  • the corresponding "lj" is the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 6 is: Select beam 0 and beam 1 as the service beam of the UE, beam 0 and beam 1 use the same time-frequency resource, phase of beam 0 is not adjusted, phase adjustment of beam 1 is -90 °
  • the result of the beam combination use corresponding to the index value 7 is: Select beam 0 and beam 1 as the service beam of the UE, and beam 0 and beam 1 use the same
  • the time-frequency resource, the phase of beam 0 is not adjusted, and the phase of beam 1 is adjusted by 180°; the corresponding "1-1" is the corresponding beam precoding mode.
  • the two service beams are in phase, such that the sum of the signals from the two service beams is maximized.
  • Beam cooperation is shown in Table 2.
  • 3 beams there are 3 types of beam combination results in the beam selection mode, and 3 types of beam combination results in the beam multiplexing mode.
  • the results of the beam combination use in the manner of beam combination in Table 2 are not limited to the result of beam combination given in Table 2, and the three beams can have more phase combinations to obtain more combinations of beam combinations.
  • the result of the beam combination corresponding to the index value 0 indicates: Select beam 0 to serve the UE, and do not allow beam 1 and beam 2 to serve other UEs on the time-frequency resources used by beam 0; corresponding "100" That is, the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 1 indicates that the beam 1 is selected as the serving beam of the UE, and the beam 0 and the beam 2 cannot serve other UEs on the time-frequency resource used by the beam 1; the corresponding "010" is the corresponding Beam precoding method.
  • the result of the beam combination use corresponding to the index value 2 indicates that the beam 2 is selected as the serving beam of the UE, and the beam 0 and the beam 1 cannot serve other UEs on the time-frequency resources used by the beam 2; the corresponding "001" is the corresponding Beam precoding method.
  • the result of the beam combination corresponding to the index value 3 indicates that: beam 0 is selected as the serving beam of the UE, beam 1 cannot serve other UEs on the time-frequency resource used by beam 0, and beam 2 is used in beam 0.
  • the time-frequency resources serve other UEs; the corresponding "10*" is the corresponding beam pre-coding mode.
  • the result of the beam combination corresponding to the index value 4 indicates that: beam 2 is selected as the serving beam of the UE, beam 1 cannot serve other UEs on the time-frequency resource used by beam 2, and beam 0 is to be used on the time-frequency resource used by beam 2.
  • Serving other UEs; the corresponding "*01" is the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 5 indicates: Select beam 0 as the service beam of the UE, and beam 1 and beam 2 should serve other UEs on the time-frequency resource used by beam 0; corresponding "1* *" is the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 6 is: the beam 1 is selected as the service beam of the UE, and the beam 0 and the beam 2 are to serve other UEs on the time-frequency resource used by the beam 1; correspondingly, the corresponding beam precoding mode is adopted. .
  • the result of the beam combination corresponding to the index value 7 is: the beam 2 is selected as the service beam of the UE, and the beam 1 and the beam 0 are to serve other UEs on the time-frequency resources used by the beam 2; correspondingly, the corresponding beam precoding mode is adopted. .
  • the result of the beam combination use corresponding to the index value 8 is: Select beam 0 and beam 1 as the service beam of the UE, the phases of beam 0 and beam 1 are not adjusted, and beam 2 cannot be used in beam 0 and beam 1.
  • the time-frequency resources serve other UEs; the corresponding "110" is the corresponding beam pre-coding mode.
  • the result of the beam combination corresponding to the index value 9 is: Select beam 0 and beam 1 as the service beam of the UE, the phase of beam 0 is not adjusted, the phase of beam 1 is adjusted by 180°, and beam 2 cannot be used in beam 0 and beam 1.
  • the time-frequency resources serve other UEs; the corresponding "1-10" is the corresponding beam precoding mode.
  • the result of the beam combination use corresponding to the index value 10 is: the beam 1 and the beam 2 are selected as the service beam of the UE, the phases of the beam 1 and the beam 2 are not adjusted, and the beam 0 cannot be used on the time-frequency resources used by the beam 1 and the beam 2 Other UE services; the corresponding "011" is the corresponding beam precoding mode.
  • the result of the beam combination corresponding to the index value 11 indicates that: beam 1 and beam 2 are selected as the service beam of the UE, the phase of the beam 1 is not adjusted, the phase of the beam 2 is adjusted by 180°, and the beam 0 cannot be used in the beam 1 and the beam 2.
  • the time-frequency resources serve other UEs; the corresponding "01-1" is the corresponding beam pre-coding mode.
  • the result of the beam combination use corresponding to the index value 12 is: Select beam 0 and beam 1 as the service beam of the UE, the phases of beam 0 and beam 1 are not adjusted, and beam 2 is to be used in beam 0 and beam 1.
  • the time-frequency resources serve other UEs; the corresponding "11*" is the corresponding beam pre-coding mode.
  • the result of the beam combination corresponding to the index value 13 is: Select beam 0 and beam 1 as the service beam of the UE, the phase of beam 0 is not adjusted, the phase of beam 1 is adjusted by 180 °, and beam 2 is to be used in beam 0 and beam 1.
  • the time-frequency resources serve other UEs; the corresponding "1-1*" is the corresponding beam precoding mode.
  • the result of the beam combination use corresponding to the index value 14 is: Select beam 1 and beam 2 as the service beam of the UE, the phases of beam 1 and beam 2 are not adjusted, and beam 0 is to be used on the time-frequency resources used by beam 1 and beam 2 Other UE services; corresponding The corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 15 indicates: Select beam 1 and beam 2 as the serving beam of the UE, the phase of beam 1 is not adjusted, the phase of beam 2 is adjusted by 180 °, and beam 0 is to be used in beam 1 and beam 2.
  • the time-frequency resources serve other UEs; the corresponding one is the corresponding beam pre-coding mode.
  • the result of the beam combination corresponding to the index value 17 is: Select beam 0, beam 1 and beam 2 as the service beam of the UE, and the phase of beam 0 and beam 1 is not adjusted, and the phase of beam 2 is adjusted by 180 °; corresponding "11- 1 " is the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 18 indicates that: beam 0, beam 1 and beam 2 are selected as the service beam of the UE, and the phases of the beam 0 and the beam 2 are not adjusted, and the phase of the beam 1 is adjusted by 180°; corresponding " 1- 11 " is the corresponding beam precoding method.
  • the result of the beam combination corresponding to the index value 19 is: Select beam 0, beam 1 and beam 2 as the service beam of the UE, and the phase of beam 0 is not adjusted, and the phase of beam 1 and beam 2 is adjusted by 180°; corresponding " 1- 1-1 " is the corresponding beam precoding method.
  • an embodiment of the step 102 includes: the UE performs matching in a preset beam precoding table according to a beam precoding manner, and obtains an index value corresponding to the beam precoding mode; the UE precodes the beam.
  • the index value corresponding to the mode is sent to the base station.
  • the UE may first determine the used beam combination usage manner, and then perform the beam precoding method to match the beam combination usage manner determined in the beam precoding table to determine an index value corresponding to the beam combination use result in the matching.
  • the index value is the index value corresponding to the beam precoding mode.
  • the beam precoding table is also pre-configured. After receiving the index value corresponding to the beam precoding mode sent by the UE, the base station matches the index value in the beam precoding table to determine the beam combination in the matching. The results are used to schedule the UE based on the resulting beam combining usage results.
  • the UE may send the beam precoding mode used by the UE to the base station after the subframe indication (Rank Indication, hereinafter referred to as RI) subframe; or the UE may also use the UE before the RI subframe.
  • the used beam precoding method is sent to the base station.
  • the UE may send the index value corresponding to the beam precoding mode used by the UE to the base station before or after the RI subframe.
  • the PMI, CQI, and the like reported by the UE to the base station are all based on the beam precoding mode used by the UE.
  • the frame of the index value corresponding to the beam precoding mode used by the UE is reported to the base station as a Beam Matrix Indication (BMI) subframe.
  • BMI Beam Matrix Indication
  • FIG. 2 a schematic diagram of a sequence in which a UE reports RI, BMI, PMI, and CQI to a base station is shown in FIG. 2. In the reporting sequence shown in FIG.
  • the UE reports to the base station in the BMI subframe that the beam is selected in the beam selection mode (specifically, the index value is 0), then the following PMI and CQI are based on the assumption of "select beam 0", that is, only the channel state of beam 0, feedback PMI and CQI; if the UE reports to the base station in the BM subframe, it is beam 1 in the selective beam selection mode (specific reporting) The index value 1), then the latter PMI, CQI are based on the assumption of "select beam 1", that is, only the channel state of beam 1, feedback PMI and CQI; if the UE reports the selected beam to the base station in the BMI subframe Beam 0 and beam 1 in cooperative mode, and the phases of beam 0 and beam 1 are ⁇ 1, +j ⁇ (specifically reported index value 5), then the subsequent PMI and CQI are based on the beam in the selective beam cooperation mode.
  • the beam 0 and beam 1 phases are ⁇ 1, +j ⁇ respectively, that is, the joint channel state for beam 0 and beam 1, feedback PMI and CQI; if the UE is in the BMI subframe to the base station Report Beam 0 and beam 1 are selected in beam cooperation mode, and the phases of beam 0 and beam 1 are ⁇ 1, -j ⁇ (specifically reported index value 6), then the subsequent PMI and CQI are based on "select beam cooperation.
  • the beam 0 and beam 1 in the mode, and the phase of beam 0 and beam 1 are ⁇ 1, -j ⁇ , respectively, that is, the joint channel state of beam 0 and beam 1, and the PMI and CQI are fed back.
  • the UE determines the usage manner of each beam to form a first beam combination use result when the beam combination is used, and indicates a first beam combination use result by using a beam precoding manner, and then sends the beam precoding manner to the base station.
  • the base station is caused to schedule the UE based on the beam precoding manner. Since the beam combining usage mode used in the process of determining the beam precoding mode in this embodiment is not limited to beam multiplexing, but includes beam selection, beam multiplexing, and beam cooperation, the beam can be flexibly selected according to interference between beams.
  • the method of combining for example, when the interference between the beams is small, the beam multiplexing method can be used to improve the throughput of the system; when the interference between the beams is relatively large, other methods such as beam selection or beam cooperation can be used. , to avoid interference between beams, improve the strength of useful signals, thereby increasing the throughput of the system.
  • FIG. 3 is a flowchart of a scheduling method according to an embodiment of the present invention.
  • the party The law includes:
  • the base station acquires a beam precoding mode used by the UE, where the beam precoding mode is used to indicate a first beam combination use result, where the first beam combination use result includes a usage manner of each beam determined by the UE when the beam combination is used; If the total number of beams is 2, the manner in which the beams are combined includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beams are combined includes beam selection and beam. One or both of multiplexing and beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes at least one of beam selection, beam multiplexing, and beam cooperation.
  • the base station schedules the UE according to the foregoing beam precoding manner.
  • the beam precoding mode used by the UE is used to indicate the first beam combining use result
  • the first beam combining use result includes the usage manner of each beam determined by the UE when the beam combination is used. Since the manner in which the beam combination is used in this embodiment does not include only beam multiplexing as in the prior art, but includes beam selection, beam multiplexing, and beam cooperation, the first beam combination uses the results of each beam included. The usage is no longer limited to multiplexing one way. In this embodiment, since the beam combination is used in multiple manners, the UE can flexibly select a combination of the beams according to the interference between the beams. For example, when the interference between the beams is small, the beam multiplexing mode can be selected.
  • the throughput of the system is improved.
  • other methods such as beam selection or beam cooperation may be selected to avoid interference between the beams, improve the strength of the useful signal, and thereby improve the throughput of the system.
  • the UE After determining the beam precoding mode, the UE reports the beam precoding to the base station, so that the base station can schedule the UE according to the beam precoding manner. For the base station, before the UE is scheduled, the beam precoding mode used by the UE is obtained, and then the UE is scheduled based on the obtained beam precoding mode.
  • the manner in which the beam combination used in this embodiment is used may be one of beam selection, beam multiplexing, and beam cooperation.
  • the manner in which the beam combination used in this embodiment is used may also be a combination of any two of beam selection, beam multiplexing, and beam cooperation.
  • the manner in which the beam combination used in this embodiment is used may also be a combination of beam selection, beam multiplexing, and beam cooperation.
  • the manner in which the beams are combined may be determined to some extent by the number of beams. For example, if the total number of beams is two, the beam combination can be used by beam selection, wave. One of beam multiplexing and beam cooperation.
  • the manner in which the beams are combined may be any one of beam selection, beam multiplexing, and beam cooperation, or a combination of any two. If the total number of beams is greater than or equal to 4, the manner in which the beams are combined may be at least one of beam selection, beam multiplexing, and beam cooperation.
  • the beam selection refers to requiring that at least one beam different from the service beam in each beam cannot serve other UEs on the time-frequency resource used by the service beam; wherein the service beam refers to The beam served by the UE.
  • beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the serving beam.
  • beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam.
  • the manner of beam combining and beam multiplexing combination, the manner of beam selection and beam cooperation combination, the manner of beam multiplexing and beam cooperation combination, and the meaning of beam selection, beam multiplexing and beam cooperation combination may be performed by the above beam
  • the meanings of selection, beam multiplexing, and beam selection are directly superimposed. For specific examples, refer to the foregoing embodiments, and details are not described herein again.
  • the UE and the base station side respectively pre-configure a beam precoding table, where the beam precoding table stores a correspondence between various beam combination usage results and index values.
  • the beam precoding table on the base station side see Table 1 or Table 2.
  • an optional implementation manner of the base station acquiring the beam precoding mode used by the UE includes: receiving, by the base station, an index value corresponding to the beam precoding mode sent by the UE; and determining, by the base station, an index value corresponding to the beam precoding mode. Perform matching in the preset beam precoding table to determine the beam combination use result in the index value matching corresponding to the beam precoding mode.
  • step 302 that is, the method for the base station to perform scheduling on the UE according to the beam precoding manner includes: determining, by the base station, the first beam combination usage result indicated by the beam precoding manner, determining, by using, The service beam of the UE and the use of other beams; allocate time-frequency resources for the service beam of the UE, transmit data to the UE on the time-frequency resource through the service beam, and transmit data through other beams according to the manner in which other beams are used.
  • the way other beams can be used is: Cannot be used on the time-frequency resources used by the service beam
  • the process of transmitting data by other UEs according to the manner in which other beams are used by the base station includes: the base station prohibits transmission of data to other UEs on the time-frequency resources used by the service beam by other beams.
  • the base station may transmit data to other UEs on other time-frequency resources different from the serving beam by other beams.
  • the time-frequency resources different from the service beam usage may be determined by the base station, and the other UEs may also be determined by the base station based on the beam precoding manner of each UE.
  • the method of using other beams may also be: To transmit data to other UEs simultaneously on the time-frequency resources used by the service beam, the process of transmitting data by other base stations according to the manner of using other beams includes: The base station is serving through other beams. The time-frequency resources used by the beam simultaneously transmit data to other UEs. The other UEs may also be determined by the base station based on the beam precoding manner of each UE.
  • the UE has at least two service beams, and the phases between the at least two service beams may be the same or different.
  • the base station may need to adjust the phase of the service beam, which requires the phase of the service beam.
  • the adjusted information also belongs to some of the information in the beam precoding method used by the UE. Based on this, if the manner in which the beam combination is used includes beam cooperation, the base station may determine each service according to the beam precoding method used by the UE before transmitting data to the UE on the time-frequency resource allocated to the service beam through the service beam.
  • the phase of the beam operation if the serving beam is not operating on the determined phase, the phase of the serving beam is adjusted to operate the service beam on the determined phase.
  • the base station transmits data to the UE on the time-frequency resource allocated to the service beam through the service beam, including: the base station transmits data to the UE on the time-frequency resource by using the phase-adjusted service beam.
  • the adjustment of the service beam is to adjust the phase of the service beam to the phase specified by the UE.
  • the precoding manner used by the UE indicates a received signal phase of the reference service beam in the service beam and a difference between a received signal phase of the reference serving beam and a received signal phase of the other serving beam.
  • the base station determines, according to the beam precoding manner used by the UE, the phase of the working of each service beam, including: the base station determines, according to the beam precoding manner, the phase of the received signal of the reference service beam and the phase of the received signal of the reference service beam and other service beams.
  • Step 302 will be described in detail below in conjunction with the specific case of the first beam combination use result.
  • the beam combination is used for beam selection, and the first beam combination use result includes: the first beam is used as the service beam of the UE, and the other beams are used in the time-frequency resource of the service beam.
  • Serve other UEs include: the first beam is used as the service beam of the UE, and the other beams are used in the time-frequency resource of the service beam.
  • step 302 includes: the base station allocates time-frequency resources for the first beam as the service beam; the base station transmits data to the UE on the allocated time-frequency resources by using the first beam, and prohibits the time-frequency through other beams.
  • the data is transmitted to other UEs on the resource, and the base station may transmit data to other UEs on other time-frequency resources different from the time-frequency resource through other beams.
  • the beam combination is performed by beam selection and beam multiplexing.
  • the first beam combination usage result includes: the first beam is used as the serving beam of the UE, and the second beam is used in the service mode.
  • the time-frequency resources of the beam serve other UEs, and the third beam is used to serve other UEs on the time-frequency resources of the serving beam.
  • the number of the second beam and the third beam is not limited to one.
  • the implementation of step 302 includes: the base station allocates time-frequency resources for the first beam as the service beam; the base station transmits data to the UE on the allocated time-frequency resources by using the first beam, and the third-beam is used in the time-frequency resource. Data is transmitted to other UEs, and data is not transmitted to other UEs on the time-frequency resource through the second beam.
  • the beam combining mode is beam multiplexing, and the first beam combination uses the first beam to use the first beam as the serving beam of the UE, and the other beam is used in the time-frequency resource of the serving beam.
  • the implementation of step 302 includes: the base station allocates time-frequency resources for the first beam as the service beam; the base station transmits data to the UE on the allocated time-frequency resources by using the first beam, and uses other beams on the time-frequency resource. Transfer data to other UEs.
  • the beam combining mode is beam cooperation
  • the first beam combining use result includes: the first beam is used by using the first phase as the serving beam of the UE, and the second beam is used in the second mode.
  • the phase serves as the serving beam of the UE.
  • the first phase and the second phase may be the same or different.
  • the implementation of step 302 includes: the base station allocates time-frequency resources for the first beam and the second beam as service beams; and the base station transmits data to the UE on the allocated time-frequency resources by using the first beam and the second beam.
  • the base station needs to perform phase adjustment on the first beam, so that the first beam works on the first phase, and then the phase-adjusted first beam is allocated.
  • Data is transmitted to the UE on the time-frequency resource.
  • the base station determines to phase adjust the second beam, the second beam operates on the second phase, and then passes the phase adjusted second beam at the allocated time frequency.
  • the data is transmitted to the UE on the resource.
  • the base station may only need to perform phase adjustment on the first beam, or may only need to perform phase adjustment on the second beam, or may perform phase adjustment on the first beam and the second beam at the same time.
  • the manner in which the beam combination is used includes beam selection and beam cooperation
  • the first beam combination use result includes: the first beam is used in a first phase as a serving beam of the UE, and the second beam is used.
  • the second phase is used as the serving beam of the UE, and other beams are used in such a manner that they cannot serve other UEs on the time-frequency resources used by the serving beam.
  • step 302 includes: the base station allocates time-frequency resources for the first beam and the second beam as service beams; if necessary, the base station further performs phase adjustment on the first beam and/or the second beam; The first beam and the second beam, or the phase-adjusted first beam and the second beam transmit data to the UE on the allocated time-frequency resource, and are prohibited from passing other beams than the first beam and the second beam The data is transmitted to other UEs on the time-frequency resource.
  • the manner in which the beam combination is used includes beam multiplexing and beam cooperation
  • the first beam combining use result includes that the first beam is used in a first phase as a serving beam of the UE, and the second beam is used.
  • the second phase is used as the serving beam of the UE, and the other beams are used to serve other UEs simultaneously on the time-frequency resources used by the serving beam.
  • step 302 includes: the base station allocates time-frequency resources for the first beam and the second beam as service beams; if necessary, the base station further performs phase adjustment on the first beam and/or the second beam; The first beam and the second beam, or the phase-adjusted first beam and the second beam transmit data to the UE on the allocated time-frequency resource, and pass the other beams except the first beam and the second beam. Data is transmitted to other UEs on time-frequency resources.
  • the base station performs scheduling on the UE based on the beam precoding method used by the UE, and the beam combination usage manner used in the determining process of the beam precoding manner is not limited to beam multiplexing.
  • the method includes beam selection, beam multiplexing, and beam cooperation. Therefore, the beam combination can be flexibly selected according to the interference between the beams. Therefore, when the base station performs scheduling on the UE based on the precoding method, the method of combining the beams is fully considered. The interference between the beams helps to improve the throughput of the system.
  • FIG. 4 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in Figure 4a, The UE includes: a determining module 41 and a transmitting module 42.
  • a determining module 41 configured to determine a beam precoding manner used by the UE, where the beam precoding manner is used to indicate a first beam combining use result, where the first beam combining use result includes each beam determined by the UE when the beam combination is used How to use it.
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation.
  • the manner in which the beam combination is used includes the beam selection.
  • the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation.
  • the sending module 42 is configured to send the beam precoding manner determined by the determining module 41 to the base station, so that the base station schedules the UE according to the beam precoding manner.
  • beam selection means that at least one beam different from the serving beam in each beam is not allowed to serve other UEs on the time-frequency resources used by the serving beam.
  • Beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the serving beam.
  • Beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam.
  • the above service beam refers to a beam serving the UE of the embodiment in each beam.
  • the determining module 41 determines a beam precoding manner used by the UE, specifically: determining, according to the received signal strength of each beam, a beam with the highest received signal strength in each beam as the first serving beam, and The difference between the received signal strength of one service beam and the received signal strength of other beams is compared with a preset first threshold and a preset second threshold respectively, and the use manner of other beams is determined according to the comparison result, and the first beam combination is obtained. The result is used, and the first beam combination use result is represented by beam precoding.
  • the first threshold is greater than the second threshold.
  • the determining module 41 compares the difference between the received signal strength of the first serving beam and the received signal strength of the other beams with a preset first threshold and a preset second threshold, respectively, and determines other according to the comparison result.
  • the method of using the beam includes: comparing the first difference with the first threshold and the second threshold, where the first difference is a received signal strength of the first serving beam and a received signal strength of the second beam in the other beam.
  • the second beam may be any of the other beams; if the first difference is greater than the first threshold, determining that the second beam can be made in the first serving beam If the first difference is smaller than the second threshold, determining that the second beam serves as the second serving beam serves the UE in the embodiment, if the first difference is greater than the second threshold. And less than the first threshold, determining that the second beam cannot serve other UEs on the time-frequency resources used by the first serving beam.
  • the UE further includes: a phase specifying module 43.
  • the phase specifying module 43 is configured to specify a phase of each service beam operation according to a received signal phase of the at least two service beams when the combined use manner includes beam cooperation, and use the beam precoding method determined by the determining module 41. Indicates the phase at which each service beam operates.
  • the phase specifying module 43 specifies the phase of each service beam operation according to the phase of the received signal of the at least two service beams, and uses the beam precoding manner to indicate the phase of each service beam operation, including: from at least two Determining a service beam as a reference service beam in the service beam, obtaining a difference between a phase of the received signal of the reference service beam and a phase of the received signal of the other service beam, and using beam precoding to indicate the phase of the received signal of the reference service beam and the reference service beam The difference between the phase of the received signal and the phase of the received signal of the other serving beams.
  • the sending module 42 sends the beam precoding mode determined by the determining module 41 to the base station, and specifically includes: performing matching in a preset beam precoding table according to the beam precoding manner, and acquiring a beam precoding manner. And corresponding to the index value, the index value corresponding to the beam precoding mode is sent to the base station; wherein, the beam precoding table stores a correspondence between the use result of the beam combination and the index value.
  • the sending module 42 sends the beam precoding mode determined by the determining module 41 to the base station, and the method includes: sending a beam precoding manner to the base station after the RI subframe; or, before the RI subframe Sending a beam precoding method to the base station.
  • the function modules of the UE provided in this embodiment may be used to perform the process of the method embodiment shown in FIG. 1.
  • the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the UE provided in this embodiment determines the usage manner of each beam when the beam combination is used to form a first beam combination use result, and indicates the first beam combination use result by using beam precoding, and then sends the beam precoding mode to the base station.
  • the base station is configured to perform scheduling on the UE according to the beam precoding manner.
  • the beam combination usage mode adopted by the UE in determining the beam precoding mode is not limited to beam multiplexing, but includes beam selection, beam multiplexing, and beam cooperation. Therefore, the UE can flexibly select according to interference between beams. The way the beams are combined, such as when the waves When the interference between the beams is small, the beam multiplexing method can be used to improve the throughput of the system. When the interference between the beams is relatively large, other methods such as beam selection or beam cooperation can be used to avoid interference between the beams. , increase the strength of the useful signal, thereby increasing the throughput of the system.
  • FIG. 5 is a schematic structural diagram of still another UE according to an embodiment of the present invention. As shown in FIG. 5, the UE includes: a processor 51 and a transmitter 53.
  • the processor 51 is configured to determine a beam precoding mode used by the UE, where the beam precoding mode is used to indicate a first beam combining use result, where the first beam combining use result includes each beam determined by the UE when the beam combination is used. How to use it.
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beam combination is used includes the beam selection. And one or both of the beam multiplexing and the beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation.
  • the transmitter 53 is configured to send the beam precoding manner determined by the processor 51 to the base station, so that the base station schedules the UE according to the beam precoding manner.
  • beam selection means that at least one beam different from the serving beam in each beam is not allowed to serve other UEs on the time-frequency resources used by the serving beam.
  • Beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the serving beam.
  • Beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam.
  • the above service beam refers to a beam serving the UE of the embodiment in each beam.
  • the UE of this embodiment may further include a memory 52.
  • Memory 52 can include read only memory and random access memory and provides instructions and data to processor 51. A portion of memory 52 may also include non-volatile random access memory (NVRAM), such as flash memory.
  • NVRAM non-volatile random access memory
  • Memory 52 stores the following elements, executable modules or data structures, or a subset thereof, or their extended set:
  • Operation instructions Includes various operation instructions for implementing various operations.
  • Operating system Includes various system programs for implementing various basic services and processing based on hard The task of the piece.
  • the processor 51 performs a corresponding operation by calling an operation instruction stored in the memory 52 (which can be stored in the operating system).
  • the processor 51 can control the operation of the UE in this embodiment, and the processor 51 can also be referred to as a central processing unit (CPU).
  • Memory 52 can include read only memory and random access memory and provides instructions and data to processor 51.
  • a portion of memory 52 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the UE in this embodiment may be coupled together by a bus system 55.
  • the bus system 55 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 55 in the figure.
  • the processor 51 can also be separately coupled to other components by other means.
  • Processor 51 can be an integrated circuit chip with signal processing capabilities. In the course of implementation, the steps of the above methods may be performed by integrated hardware logic in processor 51 or by instructions in software.
  • the processor 51 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like, and may be a general purpose processor or a special purpose processor.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 52, and the processor 51 reads the information in the memory 52 and combines the hardware to perform the steps of the above method.
  • the UE further includes: a power measurement circuit 56.
  • the power measuring circuit 56 is configured to measure the received signal strength of each beam.
  • Power measurement circuit 56 may be coupled to processor 51 via bus system 55 or may be coupled to processor 51 via other lines.
  • the input of power measurement circuit 56 is coupled to the output of receiver 54, for example, the output of receiver 54 is split into an input coupled to power measurement circuit 56.
  • the processor 51 determines the beam precoding mode used by the UE, and specifically includes: determining, according to the received signal strength of each beam, a beam having the highest received signal strength in each beam as the first a service beam, and comparing the difference between the received signal strength of the first serving beam and the received signal strength of the other beams to a preset first threshold and a preset second threshold, respectively, and determining the use of other beams according to the comparison result In a manner, a first beam combination use result is obtained, and a first beam combination use result is represented by a beam precoding manner.
  • the first threshold is greater than the second threshold.
  • the processor 51 compares the difference between the received signal strength of the first serving beam and the received signal strength of the other beams with a preset first threshold and a preset second threshold, and determines other according to the comparison result.
  • the method of using the beam includes: comparing the first difference with the first threshold and the second threshold, where the first difference is a received signal strength of the first serving beam and a received signal of the second beam in the other beam
  • the difference between the strengths, the second beam may be any of the other beams; if the first difference is greater than the first threshold, determining that the second beam can serve other UEs on the time-frequency resource used by the first serving beam, if The first difference is smaller than the second threshold, and the second beam is determined to serve the UE as the second serving beam. If the first difference is greater than the second threshold and is less than the first threshold, determining that the second beam cannot be used in the first serving beam. Serving other UEs on time-frequency resources.
  • the processor 51 is further configured to: when the beam combining mode includes beam cooperation, specify a phase of each service beam operation according to a received signal phase of the at least two service beams, and pre-code the beam The mode indicates the phase at which each service beam operates.
  • the processor 51 specifies the phase of each service beam operation according to the received signal phase of the at least two service beams, and uses the beam precoding manner to indicate the phase of each service beam operation, which specifically includes: from at least two services. Determining a service beam as a reference service beam in the beam, obtaining a difference between the phase of the received signal of the reference service beam and the phase of the received signal of the other service beam, and indicating the phase of the received signal of the reference service beam and the reception of the reference service beam by beam precoding The difference between the phase of the signal and the phase of the received signal of the other serving beam.
  • the processor 51 is further configured to perform matching in the preset beam precoding table according to the beam precoding manner, obtain an index value corresponding to the beam precoding mode, and provide the index value to the transmitter 53.
  • the transmitter 53 sends the beam precoding mode determined by the processor 51 to the base station, and the method includes: sending the index value corresponding to the beam precoding mode provided by the processor 51 to the base station.
  • the beam precoding table stores a correspondence between various beam combination usage results and index values.
  • the transmitter 53 sends the beam precoding manner determined by the processor 51 to the base station, where the method includes: transmitting the beam precoding manner to the base station after the RI subframe; or, before the RI subframe Sending a beam precoding method to the base station.
  • the UE may further include: a receiver 54.
  • the receiver 54 cooperates with the transmitter 53 to complete communication between the UE and other devices.
  • the UE provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 1.
  • the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the UE provided in this embodiment determines the usage manner of each beam when the beam combination is used to form a first beam combination use result, and indicates the first beam combination use result by using beam precoding, and then sends the beam precoding mode to the base station.
  • the base station is caused to schedule the user equipment according to the beam precoding manner.
  • the beam combination usage mode adopted by the UE in determining the beam precoding mode is not limited to beam multiplexing, but includes beam selection, beam multiplexing, and beam cooperation. Therefore, the UE can flexibly select according to interference between beams.
  • the beam multiplexing method can be used to improve the throughput of the system.
  • beam selection or beam cooperation or the like can be used. The method avoids interference between beams and increases the strength of useful signals, thereby improving the throughput of the system.
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 6, the base station includes: an acquisition module 61 and a scheduling module 62.
  • the obtaining module 61 is configured to obtain a beam precoding mode used by the UE, where the beam precoding mode is used to indicate a first beam combining use result, where the first beam combining use result includes each beam determined by the UE when the beam combination is used. How to use it.
  • the manner in which the beam combination is used includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is 3, the manner in which the beam combination is used includes the beam selection. And one or both of the beam multiplexing and the beam cooperation, if the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam At least one of the cooperation.
  • the scheduling module 62 is configured to schedule the UE according to the beam precoding manner acquired by the obtaining module 61.
  • beam selection refers to requiring that at least one beam different from the serving beam in each beam cannot serve other UEs on the time-frequency resources used by the serving beam.
  • Beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the serving beam.
  • Beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as the service beam.
  • the above service beam refers to a beam serving the UE of the embodiment in each beam.
  • the acquiring module 61 acquires the beam precoding mode used by the UE, and specifically includes: receiving an index value corresponding to the beam precoding mode sent by the UE, and using the index value corresponding to the beam precoding mode in the preset beam.
  • the result of the beam combination use in the index value matching corresponding to the beam precoding mode is determined in the precoding table.
  • the beam precoding table stores the correspondence between the use results of the various beam combinations and the index values.
  • the scheduling module 62 performs scheduling on the UE according to the beam precoding manner acquired by the obtaining module 61, and specifically includes: determining, according to the first beam combination usage result indicated by the beam precoding manner, determining the UE from each beam.
  • the service beam and other beams are used to allocate time-frequency resources for the service beam, transmit data to the UE over the time-frequency resources through the service beam, and transmit data through other beams according to the manner in which other beams are used.
  • the scheduling module 62 transmits data through other beams according to the usage manner of other beams, including:
  • the usage of other beams is: When the data cannot be transmitted to other UEs on the time-frequency resources used by the service beam, the prohibition is prohibited.
  • the other beams transmit data to other UEs on the time-frequency resources used by the serving beam; and the other beams are used in the following manner: When the data is simultaneously transmitted to other UEs on the time-frequency resources used by the serving beam, the other beams are in the serving beam. Data is simultaneously transmitted to other UEs on the used time-frequency resources.
  • the scheduling module 62 is further configured to: according to the beam precoding used by the UE, before the beam combining, including the beam cooperation, before transmitting data to the UE on the allocated time-frequency resource by using the serving beam. In a manner, a phase of each service beam operation is determined; if the service beam is not operating on the determined phase, the phase of the service beam is adjusted to operate the service beam on the determined phase. Based on this, the scheduling module 62 is configured to transmit data to the UE on the allocated time-frequency resource by using the service beam, where the scheduling module 62 is specifically configured to transmit data to the UE on the time-frequency resource by using the phase-adjusted service beam.
  • the scheduling module 62 determines the phase of each service beam working according to the beam precoding mode used by the UE, and specifically includes: determining a reference according to a beam precoding manner used by the UE.
  • the phase of the received signal and the phase of the received signal of the reference service beam are added to the phase of the received signal of the other serving beams to obtain the phase of the other service beam operation.
  • the function modules of the base station provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 3, and the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the base station provided in this embodiment cooperates with the UE provided by the foregoing embodiment, and obtains a beam precoding mode used by the UE when scheduling the UE, and schedules the UE according to the beam precoding manner. Since the beam combining usage adopted in the determining process of the beam precoding mode is not limited to beam multiplexing, but includes beam selection, beam multiplexing, and beam cooperation, the beam combination can be flexibly selected according to interference between beams. In the manner of using the method, when the base station performs scheduling on the UE based on the precoding method, the method of combining the beams is used to fully consider the interference between the beams, which is beneficial to improving the throughput of the system.
  • FIG. 7 is a schematic structural diagram of another base station according to an embodiment of the present invention. As shown in FIG. 7, the base station includes: a processor 72.
  • the processor 72 is configured to acquire a beam precoding mode used by the UE, and perform scheduling on the UE according to the beam precoding manner, where the beam precoding mode is used to indicate a first beam combination use result, and the first beam combination use result This includes the use of each beam as determined by the UE when the beam is used in combination.
  • the total number of beams is two, and the manner in which the beams are combined includes one of beam selection, beam multiplexing, and beam cooperation. If the total number of beams is three, the manner in which the beam combination is used includes the beam selection, One or both of the beam multiplexing and the beam cooperation. If the total number of beams is greater than or equal to 4, the manner in which the beam combination is used includes the beam selection, the beam multiplexing, and the beam cooperation. At least one of them.
  • beam selection means that at least one beam different from the serving beam in each beam is not allowed to serve other UEs on the time-frequency resources used by the serving beam.
  • Beam multiplexing means that at least one beam different from the serving beam in each beam is required to serve other UEs simultaneously on the time-frequency resources used by the serving beam.
  • Beam cooperation refers to requiring at least two beams in each beam to use the same time-frequency resource as a service.
  • Service beam refers to requiring at least two beams in each beam to use the same time-frequency resource as a service.
  • the above service beam refers to a beam serving the UE of the embodiment in each beam.
  • the base station may further include a memory 71.
  • Memory 71 can include read only memory and random access memory and provides instructions and data to processor 72. A portion of the memory 71 may also include non-volatile random access memory (NVRAM)
  • NVRAM non-volatile random access memory
  • Memory 71 stores the following elements, executable modules or data structures, or a subset thereof, or their extended set:
  • Operation instructions Includes various operation instructions for implementing various operations.
  • Operating System Includes a variety of system programs for implementing basic services and handling hardware-based tasks.
  • the processor 72 performs a corresponding operation by calling an operation instruction stored in the memory 71 (which can be stored in the operating system).
  • the processor 72 can control the operation of the base station in this embodiment, and the processor 72 can also be referred to as a CPU.
  • Memory 71 can include read only memory and random access memory and provides instructions and data to processor 72. A portion of the memory 71 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the base station in this embodiment are coupled together by a bus system 75.
  • the bus system 75 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 75 in the figure.
  • Processor 72 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 72 or an instruction in the form of software.
  • the processor 72 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • Software modules can be located in random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers And other mature storage media in the field.
  • the storage medium is located in the memory 71.
  • the processor 72 reads the information in the memory 71 and completes the steps of the above method in combination with its hardware.
  • the base station further includes a receiver 73.
  • the receiver 73 is configured to receive an index value corresponding to a beam precoding manner sent by the UE. Based on this, the processor 72 obtains the beam precoding mode used by the UE, and specifically includes: performing matching according to the index value corresponding to the beam precoding mode received by the receiver 73 in the preset beam precoding table, and determining the beam precoding mode corresponding to the beam precoding method. The result of the beam combination use in the index value matching; wherein, the beam precoding table stores a correspondence between various beam combination use results and index values.
  • the base station further includes: a transmitter 74.
  • the processor 72 performs scheduling on the UE according to the beam precoding manner, and specifically includes: determining, according to the first beam combination usage result indicated by the beam precoding mode, determining, by using the beam, the service beam of the UE and other beam usage manners, serving as a service beam Allocating time-frequency resources, the control transmitter 74 transmits data to the UE over the time-frequency resources through the serving beam, and controls the transmitter 74 to transmit data through other beams according to the manner in which the other beams are used.
  • the transmitter 74 can be configured to transmit data to the UE on the time-frequency resource through the service beam under the control of the processor 72, and transmit the data through other beams according to the manner in which the other beams are used.
  • the processor 72 controls the transmitter 74 to transmit data through the other beams according to the manner in which the other beams are used, including: the other beams are used in the following manner: cannot be used on the time-frequency resources used by the serving beam to other UEs.
  • the transmitter 74 is prohibited from transmitting data to other UEs on the time-frequency resources used by the serving beam through other beams; and the other beams are used in the following manner: to be simultaneously transmitted to other UEs on the time-frequency resources used by the service beam.
  • the control transmitter 74 simultaneously transmits data to other UEs over the time-frequency resources used by the serving beam through other beams.
  • the transmitter 74 transmits data through other beams according to the manner in which other beams are used, including:
  • the other beams are used in the following manner: Cannot be used on the time-frequency resources used by the serving beam to other UEs.
  • data is not transmitted to other UEs on the time-frequency resources used by the service beam through other beams; and the other beams are used in the following manner:
  • data is simultaneously transmitted to other UEs on the time-frequency resources used by the service beam
  • Data is simultaneously transmitted to other UEs on the time-frequency resources used by the serving beam by other beams.
  • the processor 72 is further configured to: before the manner in which the beam combination is used, including beam cooperation, before the control transmitter 74 transmits data to the UE on the time-frequency resource through the service beam, Determining the phase of operation of each service beam according to a beam precoding manner used by the UE, and if the service beam is not working on the determined phase, adjusting a phase of the service beam to operate the service beam on the determined phase .
  • the processor 72 controls the transmitter 74 to transmit data to the UE on the time-frequency resource through the service beam, and specifically includes: controlling the transmitter 74 to transmit data to the UE on the time-frequency resource through the phase-adjusted service beam.
  • the processor 72 determines the phase of each service beam operation according to the beam precoding manner used by the UE, and specifically includes: determining, according to a beam precoding manner used by the UE, a phase of the received signal of the reference service beam and the reference service. The difference between the phase of the received signal of the beam and the phase of the received signal of the other serving beam, the phase of the received signal of the reference service beam is used as the phase of the reference service beam, and the phase of the received signal of the reference service beam and the reference service beam The phase of the received signal is added to the phase difference of the received signal of the other serving beams to obtain the phase of the other service beam operation.
  • the base station provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 3.
  • the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the base station provided in this embodiment cooperates with the UE provided by the foregoing embodiment, and obtains a beam precoding mode used by the UE when scheduling the UE, and schedules the UE according to the beam precoding manner. Since the beam combining usage adopted in the determining process of the beam precoding mode is not limited to beam multiplexing, but includes beam selection, beam multiplexing, and beam cooperation, the beam combination can be flexibly selected according to interference between beams. In the manner of using the method, when the base station performs scheduling on the UE based on the precoding method, the method of combining the beams is used to fully consider the interference between the beams, which is beneficial to improving the throughput of the system.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种波束预编码方式上报方法、调度方法及设备。上报方法包括:UE 确定使用的波束预编码方式,波束预编码方式用于指示第一波束组合使用结果,第一波束组合使用结果包括在波束组合使用时由 UE 确定的各波束的使用方式,其中,根据各波束的总数的不同,波束组合使用的方式包括波束选择、波束复用和波束合作中的一种、两种或三种;UE 将波束预编码方式发送给基站,以使基站基于波束预编码方式对 UE 进行调度。本发明技术方案可以减轻有源天线系统中小区垂直裂向中小区间的干扰,提高系统的吞吐量。

Description

波束预编码方式上报方法、 调度方法及设备
技术领域
本发明实施例涉及通信技术, 尤其涉及一种波束预编码方式上报方法、 调度方法及设备。 背景技术
在移动通信中,基站到用户设备的信号通过基站侧的物理天线发送。对于 宏网部署, 为了提高系统容量, 增加基站的覆盖范围, 一般无线通信系统对 宏网基站的天线都广泛采用定向天线技术, 而不是全向天线技术。 描述定向 天线增益随水平方向或者垂直方向的变化而变化的图称为增益方向图。 基站 的天线又可以分为无源天线和有源天线。 对于有源天线, 其增益方向图可以 实时变化, 也就是说有源天线的高增益方向可以实时调整到业务量较多的区 域, 从而增加系统的吞吐量。
有源天线系统的一个重要的应用方案是小区裂向。 所谓小区裂向就是将 有源天线系统中的一个小区分裂为 2个或更多个小区, 一般是通过多个更窄 的波束代替原本较宽的波束实现小区裂向。 如果在水平方向上将小区分裂, 称为水平裂向, 如果在垂直方向上将小区裂向, 称为垂直裂向。 小区裂向后, 原来的一个小区分成了 2个或更多个小区,分裂出来的小区使用相同的时间、 频率、 码字等物理资源, 有利于提升系统的吞吐量。 由于原来 1个小区里的 1 个波束被分裂成多个小区的多个波束, 而多个波束之间又复用相同的物理 资源, 因此多个波束之间存在干扰, 小区裂向的直接结果是小区的干扰强度 会增大, 如果用于小区裂向的波束设计不优化, 干扰问题甚至会严重降低系 统的吞吐量。 发明内容
本发明实施例提供一种波束预编码方式上报方法、 调度方法及设备, 用 以减轻有源天线系统中小区裂向方案中小区间的干扰, 提高系统的吞吐量。
第一方面提供一种波束预编码方式上报方法, 包括: 用户设备 UE确定所述 UE使用的波束预编码方式, 所述波束预编码方式 用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束组 合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
所述 UE将所述波束预编码方式发送给基站, 以使所述基站基于所述波束 预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
结合第一方面, 在第一方面的第一种可能的实现方式中, 所述用户设备 UE确定所述 UE使用的波束预编码方式, 包括:
所述 UE根据所述各波束的接收信号强度,确定所述各波束中接收信号强 度最大的波束作为第一服务波束, 并将所述第一服务波束的接收信号强度与 其他波束的接收信号强度的差值分别与预设的第一门限和预设的第二门限进 行比较, 根据比较结果确定其他波束的使用方式, 获得所述第一波束组合使 用结果;
所述 UE用波束预编码方式表示所述第一波束组合使用结果;
其中, 所述第一门限大于所述第二门限。
结合第一方面的第一种可能的实现方式, 在第一方面的第二种可能的实 现方式中,所述 UE将所述第一服务波束的接收信号强度与其他波束的接收信 号强度的差值分别与预设的第一门限和预设的第二门限进行比较, 根据比较 结果确定其他波束的使用方式, 包括: 所述 UE将第一差值分别与所述第一门限和所述第二门限进行比较,所述 第一差值是所述第一服务波束的接收信号强度与所述其他波束中的第二波束 的接收信号强度的差值;
如果所述第一差值大于所述第一门限, 确定所述第二波束可以在所述第 一服务波束使用的时频资源上为其他 UE服务;
如果所述第一差值小于所述第二门限, 确定所述第二波束作为第二服务 波束为所述 UE服务;
如果所述第一差值大于所述第二门限且小于所述第一门限, 确定所述第 二波束不能在所述第一服务波束使用的时频资源上为其他 UE服务。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式, 在第一方面的第三种可能的实现方式中, 如果波束组合使 用的方式包括波束合作, 所述方法还包括:
所述 UE根据所述至少两个服务波束的接收信号相位,指定每个服务波束 工作的相位, 并用所述波束预编码方式表示每个服务波束工作的相位。
结合第一方面的第三种可能的实现方式, 在第一方面的第四种可能的实 现方式中, 所述根据所述至少两个服务波束的接收信号相位, 指定每个服务 波束工作的相位, 并用所述波束预编码方式表示每个服务波束工作的相位, 包括:
所述 UE 从所述至少两个服务波束中确定一个服务波束作为基准服务波 束, 获得所述基准服务波束的接收信号相位与其他服务波束的接收信号相位 的差值;
所述 UE 用所述波束预编码方式表示所述基准服务波束的接收信号相位 以及所述基准服务波束的接收信号相位与所述其他服务波束的接收信号相位 的差值。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式或第一方面的第三种可能的实现方式或第一方面的第四种可 能的实现方式, 在第一方面的第五种可能的实现方式中, 所述 UE将所述波束 预编码方式发送给基站, 包括:
所述 UE根据所述波束预编码方式在预设的波束预编码表中进行匹配,获 取所述波束预编码方式对应的索引值, 所述波束预编码表存储有各种波束组 合使用结果和索引值之间的对应关系;
所述 UE将所述波束预编码方式对应的索引值发送给所述基站。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式或第一方面的第三种可能的实现方式或第一方面的第四种可 能的实现方式或第一方面的第五种可能的实现方式, 在第一方面的第六种可 能的实现方式中, 所述 UE将所述波束预编码方式发送给基站, 包括:
所述 UE在秩指示 RI子帧之后,将所述波束预编码方式发送给所述基站; 或者
所述 UE在 RI子帧之前, 将所述波束预编码方式发送给所述基站。
第二方面提供一种调度方法, 包括:
基站获取用户设备 UE使用的波束预编码方式,所述波束预编码方式用于 指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束组合使 用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
所述基站根据所述波束预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
结合第二方面, 在第二方面的第一种可能的实现方式中, 所述基站获取 用户设备 UE使用的波束预编码方式, 包括:
所述基站接收所述 UE发送的所述波束预编码方式对应的索引值; 所述基站根据所述波束预编码方式对应的索引值在预设的波束预编码表 中进行匹配, 确定所述波束预编码方式对应的索引值匹配中的波束组合使用 结果; 其中, 所述波束预编码表存储有各种波束组合使用结果和索引值之间 的对应关系。
结合第二方面或第二方面的第一种可能的实现方式, 在第二方面的第二 种可能的实现方式中, 所述基站根据所述波束预编码方式对所述 UE 进行调 度, 包括:
所述基站根据所述波束预编码方式指示的所述第一波束组合使用结果, 从各波束中确定所述 UE的服务波束以及其他波束的使用方式;
所述基站为所述服务波束分配时频资源, 通过所述服务波束在所述时频 资源上向所述 UE传输数据,并根据其他波束的使用方式通过所述其他波束传 输数据。
结合第二方面的第二种可能的实现方式, 在第二方面的第三种可能的实 现方式中, 所述基站根据其他波束的使用方式通过所述其他波束传输数据, 包括:
如果所述其他波束的使用方式为: 不能在所述服务波束使用的时频资源 上向其他 UE传输数据,则所述基站禁止通过所述其他波束在所述服务波束使 用的时频资源上向其他 UE传输数据;
如果所述其他波束的使用方式为: 要在所述服务波束使用的时频资源上 向其他 UE同时传输数据,则所述基站通过所述其他波束在所述服务波束使用 的时频资源上同时向其他 UE传输数据。
结合第二方面的第二种可能的实现方式或第二方面的第三种可能的实现 方式, 在第二方面的第四种可能的实现方式中, 如果所述波束组合使用的方 式包括波束合作,所述基站通过所述服务波束在所述时频资源上向所述 UE传 输数据之前, 还包括:
所述基站根据所述波束预编码方式, 确定每个服务波束工作的相位, 如 果所述服务波束未工作在所述确定的相位上, 所述基站对所述服务波束的相 位进行调整, 使所述服务波束工作在所述确定的相位上。
结合第二方面的第四种可能的实现方式, 在第二方面的第五种可能的实 现方式中, 所述基站根据所述波束预编码方式, 确定每个服务波束工作的相 位, 包括: 所述基站根据所述波束预编码方式, 确定基准服务波束的接收信号相位 以及所述基准服务波束的接收信号相位与其他服务波束的接收信号相位的差 值;
所述基站将所述基准服务波束的接收信号相位作为所述基准服务波束工 作的相位, 并将所述基准服务波束的接收信号相位和所述基准服务波束的接 收信号相位与所述其他服务波束的接收信号相位的差值相加, 获得所述其他 服务波束工作的相位。
第三方面提供一种用户设备 UE, 包括:
确定模块, 用于确定所述 UE使用的波束预编码方式, 所述波束预编码方 式用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束 组合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
发送模块, 用于将所述波束预编码方式发送给基站, 以使所述基站基于 所述波束预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
结合第三方面, 在第三方面的第一种可能的实现方式中, 所述确定所述 UE使用的波束预编码方式, 具体包括:
根据所述各波束的接收信号强度, 确定所述各波束中接收信号强度最大 的波束作为第一服务波束, 并将所述第一服务波束的接收信号强度与其他波 束的接收信号强度的差值分别与预设的第一门限和预设的第二门限进行比 较, 根据比较结果确定其他波束的使用方式, 获得所述第一波束组合使用结 果, 并用波束预编码方式表示所述第一波束组合使用结果;
其中, 所述第一门限大于所述第二门限。
结合第三方面的第一种可能的实现方式, 在第三方面的第二种可能的实 现方式中, 所述将所述第一服务波束的接收信号强度与其他波束的接收信号 强度的差值分别与预设的第一门限和预设的第二门限进行比较, 根据比较结 果确定其他波束的使用方式, 具体包括:
将第一差值分别与所述第一门限和所述第二门限进行比较, 所述第一差 值是所述第一服务波束的接收信号强度与所述其他波束中的第二波束的接收 信号强度的差值; 如果所述第一差值大于所述第一门限, 确定所述第二波束 可以在所述第一服务波束使用的时频资源上为其他 UE服务,如果所述第一差 值小于所述第二门限, 确定所述第二波束作为第二服务波束为所述 UE服务, 如果所述第一差值大于所述第二门限且小于所述第一门限, 确定所述第二波 束不能在所述第一服务波束使用的时频资源上为其他 UE服务。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式, 在第三方面的第三种可能的实现方式中, 所述 UE还包括: 相位指定模块, 用于在所述波束组合使用的方式包括波束合作时, 根据 所述至少两个服务波束的接收信号相位, 指定每个服务波束工作的相位, 并 用所述波束预编码方式表示每个服务波束工作的相位。
结合第三方面的第三种可能的实现方式, 在第三方面的第四种可能的实 现方式中, 所述根据所述至少两个服务波束的接收信号相位, 指定每个服务 波束工作的相位, 并用所述波束预编码方式表示每个服务波束工作的相位, 具体包括:
从所述至少两个服务波束中确定一个服务波束作为基准服务波束, 获得 所述基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 并用所述波束预编码方式表示所述基准服务波束的接收信号相位以及所述基 准服务波束的接收信号相位与所述其他服务波束的接收信号相位的差值。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式, 在第三方面的第五种可能的实现方式中, 所述将所述波束预 编码方式发送给基站, 具体包括:
根据所述波束预编码方式在预设的波束预编码表中进行匹配, 获取所述 波束预编码方式对应的索引值, 将所述波束预编码方式对应的索引值发送给 所述基站; 其中, 所述波束预编码表存储有各种波束组合使用结果和索引值 之间的对应关系。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式第三方面的第五种可能的实现方式, 在第三方面的第六种可能 的实现方式中, 所述将所述波束预编码方式发送给基站, 具体包括:
在秩指示 RI子帧之后, 将所述波束预编码方式发送给所述基站; 或者 在 RI子帧之前, 将所述波束预编码方式发送给所述基站。
第四方面提供一种基站, 包括:
获取模块, 用于获取用户设备 UE使用的波束预编码方式, 所述波束预编 码方式用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在 波束组合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
调度模块, 用于根据所述波束预编码方式对所述 UE进行调度; 其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
结合第四方面, 在第四方面的第一种可能的实现方式中, 所述获取用户 设备 UE使用的波束预编码方式, 具体包括: 接收所述 UE发送的所述波束预编码方式对应的索引值,根据所述波束预 编码方式对应的索引值在预设的波束预编码表中进行匹配, 确定所述波束预 编码方式对应的索引值匹配中的波束组合使用结果; 其中, 所述波束预编码 表存储有各种波束组合使用结果和索引值之间的对应关系。
结合第四方面或第四方面的第一种可能的实现方式, 在第四方面的第二 种可能的实现方式中, 所述根据所述波束预编码方式对所述 UE进行调度, 具 体包括:
根据所述波束预编码方式指示的所述第一波束组合使用结果, 从各波束 中确定所述 UE的服务波束以及其他波束的使用方式,为所述服务波束分配时 频资源, 通过所述服务波束在所述时频资源上向所述 UE传输数据, 并根据其 他波束的使用方式通过所述其他波束传输数据。
结合第四方面的第二种可能的实现方式, 在第四方面的第三种可能的实 现方式中, 所述根据其他波束的使用方式通过所述其他波束传输数据, 具体 包括:
在所述其他波束的使用方式为: 不能在所述服务波束使用的时频资源上 向其他 UE传输数据时,禁止通过所述其他波束在所述服务波束使用的时频资 源上向其他 UE传输数据; 以及在所述其他波束的使用方式为: 要在所述服务 波束使用的时频资源上向其他 UE同时传输数据时,通过所述其他波束在所述 服务波束使用的时频资源上同时向其他 UE传输数据。
结合第四方面的第二种可能的实现方式或第四方面的第三种可能的实现 方式, 在第四方面的第四种可能的实现方式中, 所述调度模块还用于在所述 波束组合使用的方式包括波束合作时, 在通过所述服务波束在所述时频资源 上向所述 UE传输数据之前, 根据所述波束预编码方式, 确定每个服务波束工 作的相位, 如果所述服务波束未工作在所述确定的相位上, 对所述服务波束 的相位进行调整, 使所述服务波束工作在所述确定的相位上。
结合第四方面的第四种可能的实现方式, 在第四方面的第五种可能的实 现方式中, 所述根据所述波束预编码方式, 确定每个服务波束工作的相位, 具体包括:
根据所述波束预编码方式, 确定基准服务波束的接收信号相位以及所述 基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 将所 述基准服务波束的接收信号相位作为所述基准服务波束工作的相位, 并将所 述基准服务波束的接收信号相位和所述基准服务波束的接收信号相位与所述 其他服务波束的接收信号相位的差值相加, 获得所述其他服务波束工作的相 位。
第五方面提供一种用户设备 UE, 包括:
处理器, 用于确定所述 UE使用的波束预编码方式, 所述波束预编码方式 用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束组 合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
发射器, 用于将所述波束预编码方式发送给基站, 以使所述基站基于所 述波束预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
结合第五方面,在第五方面的第一种可能的实现方式中,所述 UE还包括: 功率测量电路, 用于测量所述各波束的接收信号强度;
所述确定所述 UE使用的波束预编码方式, 具体包括: 根据所述各波束的 接收信号强度, 确定所述各波束中接收信号强度最大的波束作为第一服务波 束, 并将所述第一服务波束的接收信号强度与其他波束的接收信号强度的差 值分别与预设的第一门限和预设的第二门限进行比较, 根据比较结果确定其 他波束的使用方式, 获得所述第一波束组合使用结果, 并用波束预编码方式 表示所述第一波束组合使用结果; 其中, 所述第一门限大于所述第二门限。
结合第五方面的第一种可能的实现方式, 在第五方面的第二种可能的实 现方式中, 所述将所述第一服务波束的接收信号强度与其他波束的接收信号 强度的差值分别与预设的第一门限和预设的第二门限进行比较, 根据比较结 果确定其他波束的使用方式, 具体包括:
将第一差值分别与所述第一门限和所述第二门限进行比较, 所述第一差 值是所述第一服务波束的接收信号强度与所述其他波束中的第二波束的接收 信号强度的差值; 如果所述第一差值大于所述第一门限, 确定所述第二波束 可以在所述第一服务波束使用的时频资源上为其他 UE服务,如果所述第一差 值小于所述第二门限, 确定所述第二波束作为第二服务波束为所述 UE服务, 如果所述第一差值大于所述第二门限且小于所述第一门限, 确定所述第二波 束不能在所述第一服务波束使用的时频资源上为其他 UE服务。
结合第五方面或第五方面的第一种可能的实现方式或第五方面的第二种 可能的实现方式, 在第五方面的第三种可能的实现方式中, 所述处理器还用 于, 在所述波束组合使用的方式包括波束合作时, 根据所述至少两个服务波 束的接收信号相位, 指定每个服务波束工作的相位, 并用所述波束预编码方 式表示每个服务波束工作的相位。
结合第五方面的第三种可能的实现方式, 在第五方面的第四种可能的实 现方式中, 所述根据所述至少两个服务波束的接收信号相位, 指定每个服务 波束工作的相位, 并用所述波束预编码方式表示每个服务波束工作的相位, 具体包括:
从所述至少两个服务波束中确定一个服务波束作为基准服务波束, 获得 所述基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 并用所述波束预编码方式表示所述基准服务波束的接收信号相位以及所述基 准服务波束的接收信号相位与所述其他服务波束的接收信号相位的差值。
结合第五方面或第五方面的第一种可能的实现方式或第五方面的第二种 可能的实现方式或第五方面的第三种可能的实现方式或第五方面的第四种可 能的实现方式, 在第五方面的第五种可能的实现方式中, 所述处理器还用于 根据所述波束预编码方式在预设的波束预编码表中进行匹配, 获取所述波束 预编码方式对应的索引值; 所述将所述波束预编码方式发送给基站, 具体包括:
将所述波束预编码方式对应的索引值发送给所述基站; 其中, 所述波束 预编码表存储有各种波束组合使用结果和索引值之间的对应关系。
结合第五方面或第五方面的第一种可能的实现方式或第五方面的第二种 可能的实现方式或第五方面的第三种可能的实现方式或第五方面的第四种可 能的实现方式或第五方面的第五种可能的实现方式, 在第五方面的第六种可 能的实现方式中, 所述将所述波束预编码方式发送给基站, 具体包括:
在秩指示 RI子帧之后, 将所述波束预编码方式发送给所述基站; 或者 在 RI子帧之前, 将所述波束预编码方式发送给所述基站。
第六方面提供一种基站, 包括:
处理器, 用于获取用户设备 UE使用的波束预编码方式, 并根据所述波束 预编码方式对所述 UE进行调度; 其中, 所述波束预编码方式用于指示第一波 束组合使用结果, 所述第一波束组合使用结果包括在波束组合使用时由所述 UE确定的各波束的使用方式;
其中, 各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束 复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的方式 包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如果各 波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述 波束复用和所述波束合作中的至少一种;
所述波束选择是指要求各波束中至少有一个不同于服务波束的波束不能 在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
结合第六方面, 在第六方面的第一种可能的实现方式中, 所述基站还包 括:
接收器, 用于接收所述 UE发送的所述波束预编码方式对应的索引值; 所述获取用户设备 UE使用的波束预编码方式, 具体包括: 根据所述接收器接收的所述波束预编码方式对应的索引值在预设的波束 预编码表中进行匹配, 确定所述波束预编码方式对应的索引值匹配中的波束 组合使用结果; 其中, 所述波束预编码表存储有各种波束组合使用结果和索 引值之间的对应关系。
结合第六方面或第六方面的第一种可能的实现方式, 在第六方面的第二 种可能的实现方式中, 所述基站还包括: 发射器;
所述根据所述波束预编码方式对所述 UE进行调度, 具体包括: 根据所述波束预编码方式指示的所述第一波束组合使用结果, 从各波束 中确定所述 UE的服务波束以及其他波束的使用方式,为所述服务波束分配时 频资源,并控制所述发射器通过所述服务波束在所述时频资源上向所述 UE传 输数据, 以及控制所述发射器根据其他波束的使用方式通过所述其他波束传 输数据;
所述发射器, 用于在所述处理器的控制下, 通过所述服务波束在所述时 频资源上向所述 UE传输数据,并根据所述其他波束的使用方式通过所述其他 波束传输数据。
结合第六方面的第二种可能的实现方式, 在第六方面的第三种可能的实 现方式中, 所述控制所述发射器根据其他波束的使用方式通过所述其他波束 传输数据, 具体包括:
在所述其他波束的使用方式为: 不能在所述服务波束使用的时频资源上 向其他 UE传输数据时,禁止所述发射器通过所述其他波束在所述服务波束使 用的时频资源上向其他 UE传输数据; 以及在所述其他波束的使用方式为: 要 在所述服务波束使用的时频资源上向其他 UE同时传输数据时,控制所述发射 器通过所述其他波束在所述服务波束使用的时频资源上同时向其他 UE 传输 数据。
结合第六方面的第二种可能的实现方式或第六方面的第三种可能的实现 方式, 在第六方面的第四种可能的实现方式中, 所述处理器还用于在所述波 束组合使用的方式包括波束合作时, 在控制所述发射器通过所述服务波束在 所述时频资源上向所述 UE传输数据之前, 根据所述波束预编码方式, 确定每 个服务波束工作的相位, 如果所述服务波束未工作在所述确定的相位上, 对 所述服务波束的相位进行调整, 使所述服务波束工作在所述确定的相位上。 结合第六方面的第四种可能的实现方式, 在第六方面的第五种可能的实 现方式中, 所述根据所述波束预编码方式, 确定每个服务波束工作的相位, 具体包括:
根据所述波束预编码方式, 确定基准服务波束的接收信号相位以及所述 基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 将所 述基准服务波束的接收信号相位作为所述基准服务波束工作的相位, 并将所 述基准服务波束的接收信号相位和所述基准服务波束的接收信号相位与所述 其他服务波束的接收信号相位的差值相加, 获得所述其他服务波束工作的相 位。
本发明实施例提供的波束预编码方式上报方法、 调度方法及设备, 用户 设备在波束组合使用时确定各波束的使用方式形成第一波束组合使用结果, 并通过波束预编码方式指示第一波束组合使用结果, 然后将波束预编码方式 发送给基站, 使得基站基于该波束预编码方式对用户设备进行调度。 由于本 发明实施例在确定波束预编码方式过程中采用的波束组合使用方式不限于波 束复用一种, 而是包括波束选择、 波束复用和波束合作, 这样 UE就可以根据 波束之间的干扰选择不同的波束组合使用方式, 例如当波束之间的干扰较小 时, 可以使用波束复用的方法, 有利于提高系统的吞吐量; 当波束之间的干 扰比较大时, 使用波束选择或者波束合作等其他方法, 避免波束之间的干扰, 提高有用信号的强度, 从而提高系统的吞吐量。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 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为本发明实施例提供的一种波束预编码方式上报方法的流程图; 图 2为本发明实施例提供的 UE向基站上报 RI、 BMI和 PMI、 CQI的先后 顺序示意图;
图 3为本发明实施例提供的一种调度方法的流程图;
图 4a为本发明实施例提供的一种 UE的结构示意图; 图 4b为本发明实施例提供的另一种 UE的
图 5为本发明实施例提供的又一种 UE的
图 6为本发明实施例提供的一种基站的结
图 7为本发明实施例提供的另一种基站的 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例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作出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明实施例提供的一种波束预编码方式上报方法的流程图。 如 图 1所示, 该方法包括:
101、 用户设备 (User Equipment , 简称为 UE) 确定该 UE使用的波束预 编码方式, 该波束预编码方式用于指示第一波束组合使用结果, 第一波束组 合使用结果包括在波束组合使用时由该 UE确定的各波束的使用方式; 其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和 波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的方式包括波 束选择、 波束复用和波束合作中的一种或两种, 如果各波束的总数大于或等 于 4, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的至少 一种。
这里, "各波束"可以包括基站发射的所有波束, 也可以只包括实际用 到的波束, 例如基站总共发射有 10个波束, 但是只有 5个被实际用到, 另外 5个始终闲置, 则在这种情况下, "各波束"可以只包括那 5个被实际用到 的波束。
102、 UE将上述波束预编码方式发送给基站, 以使基站基于波束预编码 方式对 UE进行调度。
在有源天线系统 (Active Antenna System, 简称为 AAS ) 中, 有源天线 阵列可以在空间上产生不同朝向的波束, 实现小区裂向。 因此, 对 AAS来说, 可以在垂直方向上进行小区裂向。 垂直裂向的小区间可以通过复用相同的时 频资源提高系统容量。 但是, 在波束的过渡区域, 波束间会产生交叠, 并且 由于波束在这个过渡区域内的增益相差不大, 因此相互间的干扰也较大, 这 会使 UE的信噪比较低, 进而降低系统的吞吐量, 影响小区垂直裂向的增益。
为解决该问题, 本实施例给出了一种波束预编码方式上报方法, 由 UE确 定使用的波束预编码方式, 然后将该波束预编码方式上报给基站, 基站根据 该波束预编码方式对 UE进行调度。 在本实施例中, UE根据波束预编码方式 对 UE进行调度主要是指基于该波束预编码方式确定 UE的服务波束,为 UE的 服务波束分配时频资源,并通过服务波束在所分配的时频资源上向 UE传输数 据的过程。 可选的, UE可以根据各波束之间的干扰, 确定使用的波束预编码 方式。 在本实施例中, UE使用的波束预编码方式用于指示第一波束组合使用 结果,该第一波束组合使用结果包括在波束组合使用时由 UE确定的各波束的 使用方式。 由于本实施例中波束组合使用的方式不再像现有技术那样仅包括 波束复用一种, 而是包括波束选择、 波束复用和波束合作, 因此第一波束组 合使用结果包括的各波束的使用方式不再限于复用一种方式。在本实施例中, 由于波束组合使用的方式有多种,因此 UE可以灵活根据波束之间的干扰选择 波束组合使用的方式, 例如当波束之间的干扰较小时, 可以选择波束复用方 式, 进而提高系统的吞吐量; 当波束之间的干扰较大时, 可以选择波束选择 或波束合作等其他方式, 避免波束之间的干扰, 提高有用信号的强度, 进而 提高系统的吞吐量。
举例说明, 本实施例涉及的波束组合使用的方式可以是波束选择、 波束 复用和波束合作中的一种。 又例如, 本实施例涉及的波束组合使用的方式还 可以是波束选择、 波束复用和波束合作中任意两种的组合。 又例如, 本实施 例涉及的波束组合使用的方式还可以是波束选择、 波束复用和波束合作三者 的组合。 其中, 波束组合使用的方式在一定程度上可由波束的个数决定。 例 如, 如果各波束的总数为 2个, 则波束组合使用的方式可以是波束选择、 波 束复用和波束合作中的一种。 如果各波束的总数为 3个, 则波束组合使用的 方式可以是波束选择、 波束复用和波束合作中任意一种或任意两种的组合。 如果各波束的总数大于或等于 4, 则波束组合使用的方式可以是波束选择、 波束复用和波束合作中的至少一种。
在此说明, 在本发明实施例中, 波束选择是指要求各波束中至少有一个 不同于服务波束的波束不能在该服务波束使用的时频资源上为其他 UE服务; 其中服务波束是指为 UE服务的波束。举例说明, 假设有 3个波束, 分别为波 束 0、 波束 1和波束 2。 例如, 假设 3个波束中的波束 0作为服务波束为 UE 服务, 那么在波束 1和波束 2中至少要有一个波束不能在波束 0使用的时频 资源上为其他 UE服务。 又例如, 假设 3个波束中的波束 1作为服务波束为 UE服务, 那么在波束 0和波束 2中至少要有一个波束不能在波束 1使用的时 频资源上为其他 UE服务。又例如, 假设 3个波束中的波束 2作为服务波束为 UE服务, 那么在波束 0和波束 1中至少要有一个波束不能在波束 2使用的时 频资源上为其他 UE服务。 再举例说明, 假设有 2个波束, 分别为波束 0和波 束 1。 例如, 假设 2个波束中的波束 0作为服务波束为 UE服务, 则波束 1不 能在波束 0使用的时频资源上为其他 UE服务。又例如, 假设 2个波束中的波 束 1作为服务波束为 UE服务,则波束 0不能在波束 1使用的时频资源上为其 他 UE服务。
在本发明实施例中, 波束复用是指要求各波束中至少有一个不同于服务 波束的波束在该服务波束使用的时频资源上同时为其他 UE服务。 举例说明, 假设有 3个波束, 分别为波束 0、 波束 1和波束 2。 例如, 假设 3个波束中的 波束 0作为服务波束为 UE服务,则波束 1和波束 2中至少有一个波束要在波 束 0使用的时频资源上同时为其他 UE服务。又例如, 假设 3个波束中的波束 1作为服务波束为 UE服务, 则波束 0和波束 2中至少有一个波束要在波束 1 使用的时频资源上同时为其他 UE服务。又例如, 假设 3个波束中的波束 2作 为服务波束为 UE服务,则波束 0和波束 1中至少有一个波束要在波束 2使用 的时频资源上同时为其他 UE服务。 再举例说明, 假设有 2个波束, 分别为波 束 0和波束 1。 例如, 假设 2个波束中的波束 0作为服务波束为 UE服务, 则 波束 1要在波束 0使用的时频资源上同时为其他 UE服务。又例如, 假设 2个 波束中的波束 1作为服务波束为 UE服务,则波束 0要在波束 1使用的时频资 源上同时为其他 UE服务。
在本发明实施例中, 波束合作是指要求各波束中至少有两个使用相同时 频资源的波束作为服务波束。 举例说明, 假设有 3个波束, 分别为波束 0、 波束 1和波束 2。 一种波束合作方式可以选择波束 0和波束 1作为服务波束 为 UE服务, 即波束 0和波束 1使用相同的时频资源为 UE传输信号。又例如, 波束合作方式还可以选择波束 1和波束 2作为服务波束为 UE服务, 即波束 1 和波束 2使用相同的时频资源为 UE传输信号。再举例说明,假设有 2个波束, 分别为波束 0和波束 1。 波束选择方式可以选择波束 0和波束 1作为服务波 束为 UE服务, 即波束 0和波束 1使用相同的时频资源为 UE传输信号。
关于波束选择和波束复用组合的方式、波束选择和波束合作组合的方式、 波束复用和波束合作组合的方式、 以及波束选择、 波束复用和波束合作组合 的方式的含义, 可以由上述波束选择、 波束复用和波束选择的含义直接进行 叠加获得。 举例说明, 波束选择和波束复用组合的方式是指要求各波束中至 少有一个不同于服务波束的波束不能在该服务波束使用的时频资源上为其他 UE服务, 且要求至少有一个不同于服务波束的波束在该服务波束使用的时频 资源上同时为其他 UE服务。波束选择和波束合作组合的方式是指要求各波束 中至少有两个使用相同时频资源的波束作为服务波束, 且至少有一个不同于 服务波束的波束不能在服务波束使用的时频资源上为其他 UE服务。波束合作 和波束复用组合的方式是指要求各波束中至少有两个使用相同时频资源的波 束作为服务波束, 且至少有一个不同于服务波束的波束在该服务波束使用的 时频资源上同时为其他 UE服务。 其它组合方式不再一一列举。
在一可选实施方式中, 各波束之间的干扰可以用于各波束的接收信号强 度之间的大小关系来表示。 则步骤 101, 即 UE确定使用的波束预编码方式的 一种实施方式包括: UE根据各波束的接收信号强度, 确定接收信号强度最大 的波束作为第一服务波束为该 UE服务,然后将该第一服务波束的接收信号强 度和其他波束的接收信号强度的差值分别与预设的第一门限和第二门限进行 比较, 根据比较结果确定其他波束的使用方式, 从而获得第一波束组合使用 结果; 再用波束预编码方式表示该第一波束组合使用结果。
具体的, UE首先测量 AAS天线系统中各波束的接收信号强度, 这里的接 收信号强度可以用接收功率, 例如参考信号接收功率 (Reference Signal Receiving Power , 简称为 RSRP) 来表示, 但不限于此。 然后, UE根据各波 束的接收信号强度的关系确定波束组合使用的方式及各波束的使用方式。 假 设 UE预先设定两个门限, 第一门限和第二门限, 其中, 第一门限大于第二门 限, 例如第一门限的取值可以是 10dB, 第二门限的取值可以是 3dB, 但并不 限于此。 经过功率测量, UE首先选择接收信号强度最大的波束作为 UE的第 一服务波束。 然后, 获取第一服务波束的接收信号强度和其他波束中的第二 波束的接收信号强度的差值, 记为第一差值, 这里第二波束可以是其他波束 中任意的波束; 将所获得的第一差值分别与第一门限和第二门限进行比较; 如果该第一差值大于第一门限, 也即第二波束的接收信号强度比第一服务波 束的接收信号强度小 10dB以上, 则 UE可以认为第二波束对第一服务波束的 干扰较小,确定第二波束可以在第一服务波束使用的时频资源上为其他 UE服 务, 因此 UE可以选择波束复用的方式; 如果第一差值小于第二门限, 也即第 二波束的接收信号强度比第一服务波束的接收信号强度小 3dB以内,则 UE认 为第二波束和第一服务波束的对 UE的功率值相当,确定第二波束可以作为第 二服务波束为该 UE服务, 因此 UE可以选择波束合作的方式; 如果第一差值 大于第二门限, 且小于第一门限, 也即第二波束的接收功率比第一服务波束 的接收功率小 3dB以上, 又在 10dB以内, UE认为第二波束对第一服务波束 的干扰较大, 但是又没有到达可以服务该 UE的门限, 此时 UE可以选择波束 选择的方式, 确定第二波束在第一服务波束使用的时频资源上即不能为该 UE 服务, 也不能为其他 UE服务。
进一步举例说明, 以第一门限为 10dB、 第二门限为 3dB为例, 考虑 2个 波束的情况:
例如, 假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 -l lOdBm, 此时 UE选择接收功率最大的波束 0作为自己的服务波束, 由于波束 0的接收 功率与波束 1的接收功率的差值大于第一门限, 即 10dB, UE认为波束 1对波 束 0的干扰较小, 因此确定波束 1可以在波束 0使用的时频资源上同时给其 他 UE服务,则波束 0和波束 1组合使用的方式为波束复用。在该实施方式中, 波束 0的使用方式是作为 UE的服务波束为 UE服务, 而波束 1的使用方式是 在波束 0使用的时频资源上为其他 UE服务。
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _91dBm, 此时 UE 选择接收功率最大的波束 0作为自己的服务波束, 由于波束 0的接收功率与 波束 1的接收功率的差值小于第二门限, 即 3dB, 说明波束 1和波束 0对 UE 的功率值相当, 波束 1也可以作为 UE的服务波束, 于是 UE也选择波束 1作 为服务波束, 则波束 0和波束 1组合使用的方式为波束合作。 在该实施方式 中, 波束 0和波束 1的使用方式都是作为 UE的服务波束为 UE服务。 可选的, 在波束组合方式下, UE将来自各服务波束上的信号强度相加获 得最终的接收信号强度, 为了获得尽可能大的接收信号强度, 各服务波束上 的接收信号的相位差值越小越好, 最为理想的情况是各服务波束上的接收信 号同相位。 基于此, UE在确定波束组合使用的方式包括波束组合时, 还可以 根据至少两个服务波束的接收信号相位, 指定每个服务波束工作的相位, 并 用波束预编码方式表示每个服务波束工作的相位, 以便获得尽可能大的接收 信号强度。 针对上述举例, UE还可以指定波束 0和波束 1工作的相位, 并用 波束预编码方式表示波束 0和波束 1工作的相位, 进而通过波束预编码方式 将服务波束工作的相位上报基站,这样基站可以使服务波束工作在 UE指定的 相位上, 这样 UE通过波束 0和波束 1能够获得尽可能大的接收信号强度。可 选的, UE根据至少两个服务波束的接收信号相位, 指定每个服务波束工作的 相位, 并用波束预编码方式表示每个服务波束工作的相位的实施方式包括: UE从各服务波束中确定一个服务波束作为基准服务波束, 获得该基准服务波 束的接收信号相位与其他服务波束的接收信号相位的差值; 然后用波束预编 码方式表示该基准服务波束的接收信号相位以及该基准服务波束的接收信号 相位与其他服务波束的接收信号相位的差值。 对基站来说, 可以直接将基准 服务波束的接收信号相位作为基准服务波束工作的相位, 根据基准服务波束 的接收信号相位和上述差值获得其他服务波束工作的相位。 其中, UE除了可 以测量各波束的接收信号强度之外, 还可以测量各波束的接收信号的相位。
UE测量各波束的接收信号相位属于现有技术, 在此不做详述。
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _95dBm, 此时 UE 选择接收功率最大的波束 0作为自己的服务波束, 由于波束 0与波束 1的接 收功率的差值大于第二门限, 且小于第一门限, 说明波束 1对波束 0的干扰 较大, 但又没有达到可以服务该 UE的门限, 于是 UE确定波束 1在波束 0使 用的时频资源上不能给其他 UE服务,则波束 0和波束 1组合使用的方式为波 束选择。 在该实施方式中, 波束 0的使用方式是作为 UE的服务波束为 UE服 务, 而波束 1的使用方式是在波束 0使用的时频资源上不能为其他 UE服务。
再举例说明, 以第一门限为 10dB、 第二门限为 3dB为例, 考虑 3个波束 的情况:
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _1 10dBm, 波束 2 的接收功率是 -130dBm, 此时 UE选择接收功率最大的波束 0作为自己的服务 波束, 由于波束 0与波束 1的接收功率的差值大于第一门限, 且波束 0与波 束 2的接收功率的差值也大于第一门限, UE认为波束 1和波束 2对波束 0的 干扰都较小, 因此可以确定波束 1和波束 2可以在波束 0使用的时频资源上 同时给其他 UE服务,则波束 0、波束 1和波束 2组合使用的方式为波束复用。 在该实施方式中, 波束 0的使用方式是作为 UE的服务波束为 UE服务, 而波 束 1和波束 2的使用方式都是在波束 0使用的时频资源上为其他 UE服务。
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _91dBm, 波束 2 的接收功率是 -92dBm,此时 UE选择接收功率最大的波束 0作为自己的服务波 束, 由于波束 0与波束 1的接收功率的差值小于第二门限, 波束 0与波束 2 的接收功率的差值也小于第二门限, 说明波束 1、 波束 2与波束 0对 UE的功 率都相当, 波束 1和波束 2也可以作为 UE的服务波束, 于是 UE选择波束 1 和波束 2也作为自己的服务波束, 则波束 0、 波束 1和波束 2组合使用的方 式为波束合作。 在该实施方式中, 波束 0、 波束 1和波束 2的使用方式都是 作为 UE的服务波束为 UE服务。 可选的, UE还可以指定波束 0、 波束 1和波 束 2工作的相位, 使波束 0、 波束 1和波束 2工作的相位相差尽可能小, 以 便获得尽可能大的接收信号强度。
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _95dBm, 波束 2 的接收功率是 -94dBm,此时 UE选择接收功率最大的波束 0作为自己的服务波 束, 由于波束 0与波束 1的接收功率的差值大于第二门限, 且小于第一门限, 而波束 0与波束 2的接收功率的差值也大于第二门限, 且小于第一门限, 说 明波束 1、 波束 2对波束 0的干扰都较大, 但又都没有达到可以服务该 UE的 门限, 于是 UE确定波束 1和波束 2在波束 0使用的时频资源上不能给其他 UE服务, 则波束 0、 波束 1和波束 2组合使用的方式为波束选择。 在该实施 方式中, 波束 0的使用方式是作为 UE的服务波束为 UE服务, 而波束 1和波 束 2的使用方式都是在波束 0使用的时频资源上不能为其他 UE服务。
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _91dBm, 波束 2 的接收功率是 -130dBm, 此时 UE选择接收功率最大的波束 0作为服务波束, 由于波束 0和波束 1的接收功率的差值小于第二门限, 说明波束 1和波束 0 对 UE的功率值相当, 波束 1也可以作为 UE的服务波束, 于是 UE也选择波束 1作为服务波束, 则波束 0和波束 1组合使用的方式为波束合作; 而波束 0 与波束 2的接收功率的差值大于第一门限, UE认为波束 2对波束 0的干扰较 小,因此可以确定波束 2可以在波束 0使用的时频资源上同时给其他 UE服务, 则波束 0和波束 2组合使用的方式为波束复用, 由此可见该实施方式中波束 0、波束 1和波束 2组合使用方式是波束合作与波束复用的组合。在该实施方 式中, 波束 0和波束 1的使用方式是作为 UE的服务波束为 UE服务, 而波束 2的使用方式是在波束 0使用的时频资源上为其他 UE服务。可选的, UE还可 以指定波束 0和波束 1工作的相位, 使波束 0和波束 1工作的相位相差尽可 能小, 以便获得尽可能大的接收信号强度。
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _91dBm, 波束 2 的接收功率是 -95dBm, 此时 UE选择接收功率最大的波束 0作为 UE的服务波 束, 由于波束 0的接收功率与波束 1的接收功率的差值小于第二门限, 说明 波束 1和波束 0对 UE的功率值相当, 波束 1也可以作为 UE的服务波束, 于 是 UE也选择波束 1作为服务波束,则波束 0和波束 1组合使用的方式为波束 合作; 由于波束 0与波束 2的接收功率的差值大于第二门限, 且小于第一门 限, 说明波束 2对波束 0的干扰较大, 但又没有达到可以服务该 UE的门限, 于是 UE确定波束 2在波束 0使用的时频资源上不能给其他 UE服务, 则波束 0和波束 2组合使用的方式为波束选择, 该实施方式中波束 0、波束 1和波束 2 组合使用的方式是波束合作与波束选择的组合。 在该实施方式中, 波束 0 和波束 1的使用方式是作为 UE的服务波束为 UE服务, 而波束 2的使用方式 是在波束 0使用的时频资源上不能为其他 UE服务。 可选的, UE还可以指定 波束 0和波束 1工作的相位, 使波束 0和波束 1工作的相位相差尽可能小, 以便获得尽可能大的接收信号强度。
假设波束 0的接收功率是 _90dBm, 波束 1的接收功率是 _85dBm, 波束 2 的接收功率是 -130dBm, 此时 UE选择接收功率最大的波束 0作为自己的服务 波束, 由于波束 0与波束 1的接收功率的差值大于第二门限, 且小于第一门 限, 说明波束 1对波束 0的干扰较大, 但又没有达到可以服务该 UE的门限, 于是 UE确定波束 1在波束 0使用的时频资源上不能给其他 UE服务, 则波束 0和波束 1组合使用的方式为波束选择; 由于波束 0与波束 2的接收功率的 差值大于第一门限, 说明波束 2对波束 0的干扰较小, 因此可以确定波束 2 可以在波束 0使用的时频资源上同时给其他 UE服务,则波束 0和波束 2组合 使用的方式为波束复用, 该实施方式中波束 0、 波束 1和波束 2组合使用的 方式是波束选择与波束复用的组合。 在该实施方式中, 波束 0的使用方式是 作为 UE的服务波束为 UE服务, 而波束 1的使用方式是在波束 0使用的时频 资源上不能给其他 UE服务,波束 2的使用方式是可以在波束 0使用的时频资 源上给其他 UE服务。
上面所列举的第一门限为 10dB, 第二门限为 3dB仅仅是举例, 实际系统 中, 可以根据网络部署情况对这两个门限的取值做优化。
在上述各实施方式中, UE确定出各波束的使用方式后即可获得第一波束 组合使用结果, 然后可以通过波束预编码方式来表示该第一波束组合使用结 果。
在一可选实施方式中, UE预先配置了波束预编码表, 该波束预编码表中 存储有各种波束组合使用结果和索引值之间的对应关系, 并且在该波束预编 码表中各种波束组合使用结果是通过波束预编码方式表示的。 分别以 2个波 束和 3个波束为例, 则波束预编码表的实现方式分别如表 1和表 2所示。 表 1和表 2 中各符号说明如下: " 1 "代表服务波束; 代表波束复用方式 中可以在服务波束使用的时频资源上为其他 UE服务的波束; "0 "代表波束 选择方式中不能在服务波束使用的时频资源上为其他 UE服务的波束; " j " 代表波束合作方式中另外的服务波束, 同时体现了该服务波束与 " 1 "代表的 服务波束之间的相位相差 90° ; 代表波束合作方式中另外的服务波束, 同时体现了该服务波束与 " 1 "代表的服务波束之间的相位相差 -90° ; 代表波束合作方式中另外的服务波束, 同时体现了该服务波束与 " 1 "代表的 服务波束之间的相位相差 180 ° 。 在此说明, 用于代表各波束使用方式的符 号并不限于表 1和表 2使用的 "0 " 、 " 1 " 、 " j "、 、 和 。
表 1
波束组合使用的 索引值 (Index) 波束 0 波束 1
方式
0 1 0 波束选择
1 0 1 波束选择
2 1 氺 波束复用 3 氺 1 波束复用
4 1 1 波束合作
5 1 j 波束合作
6 1 _j 波束合作
7 1 -1 波束合作 以表 1为例, 在 2个波束的情况下, 波束选择的方式下有 2种波束组合 使用结果, 波束复用的方式下有 2种波束组合使用结果, 波束合作的方式下 有 4种波束组合使用结果。 关于波束组合的方式并不限于表 1给出的 4种波 束组合使用结果, 例如 2个波束可以有更多种相位组合从而获得更多种波束 组合使用结果。
在表 1中, 索引值 0对应的波束组合使用结果表示: 选择波束 0作为 UE 的服务波束, 且波束 1不能在波束 0使用的时频资源上为其他 UE服务; 相应 的 " 10 " 即为对应的波束预编码方式。 索引值 1对应的波束组合使用结果表 示: 选择波束 1作为 UE的服务波束, 且波束 0不能在波束 1使用的时频资源 上为其他 UE服务; 相应的 " 01 " 即为对应的波束预编码方式。
在表 1中, 索引值 2对应的波束组合使用结果表示: 选择波束 0作为 UE 的服务波束, 且波束 1要在波束 0使用的时频资源上同时为其他 UE服务; 相 应的 " 1* " 即为对应的波束预编码方式。 索引值 3对应的波束组合使用结果 表示: 选择波束 1作为 UE的服务波束, 且波束 0要在波束 1使用的时频资源 上同时为其他 UE服务; 相应的 即为对应的波束预编码方式。
在表 1中, 索引值 4对应的波束组合使用结果表示: 选择波束 0和波束 1作为 UE的服务波束, 且波束 0和波束 1使用相同的时频资源, 并且波束 0 和波束 1 的相位不调整; 相应的 " 11 " 即为对应的波束预编码方式。 索引值 5对应的波束组合使用结果表示: 选择波束 0和波束 1作为 UE的服务波束, 且波束 0和波束 1使用相同的时频资源, 波束 0的相位不调整, 波束 1的相 位调整 90 ° ; 相应的 " l j " 即为对应的波束预编码方式。 索引值 6对应的波 束组合使用结果表示: 选择波束 0和波束 1作为 UE的服务波束, 波束 0和波 束 1使用相同的时频资源, 波束 0的相位不调整, 波束 1的相位调整 -90 ° ; 相应的 即为对应的波束预编码方式。 索引值 7对应的波束组合使用结 果表示: 选择波束 0和波束 1作为 UE的服务波束, 波束 0和波束 1使用相同 的时频资源, 波束 0的相位不调整, 波束 1的相位调整 180° ; 相应的 " 1-1 " 即为对应的波束预编码方式。 在本实施例中, 假设对其中一个服务波束的相 位进行调整后, 两个服务波束就会同相位, 这样来自两个服务波束的信号相 加获得的信号强度最大。
以 3个波束为例, 则波束预编码表的一种实现方式如表 2所示。
表 2
索引值 波束组合使 波束 0 波束 1 波束 2
( Index ) 用的方式
0 1 0 0 波束选择
1 0 1 0 波束选择
2 0 0 1 波束选择 波束选择 +波
3 1 0 氺
束复用 波束选择 +波
4 氺 0 1
束复用
5 1 氺 氺 波束复用
6 氺 1 氺 波束复用
7 氺 氺 1 波束复用 波束合作 +波
8 1 1 0
束选择 波束合作 +波
9 1 -1 0
束选择 波束合作 +波
10 0 1 1
束选择 波束合作 +波
11 0 1 -1
束选择 波束合作 +波
12 1 1 氺
束复用 波束合作 +波
13 1 -1 氺
束复用 波束合作 +波
14 氺 1 1
束复用 波束合作 +波
15 氺 1 -1
束复用
16 1 1 1 波束合作
17 1 1 -1 波束合作
18 1 -1 1 波束合作
19 1 -1 -1 波束合作 以表 2所示为例, 在 3个波束的情况下, 波束选择的方式下有 3种波束 组合使用结果, 波束复用的方式下有 3种波束组合使用结果, 波束合作的方 式下有 4种波束组合使用结果, 波束选择和波束复用组合方式下有 2种波束 组合使用结果, 波束合作和波束选择组合方式下有 4种波束组合使用结果, 波束合作和波束复用组合方式下有 4种波束组合使用结果。 其中, 表 2中所 有涉及波束组合的方式时波束组合使用结果并不限于表 2给出的波束组合使 用结果, 3个波束可以有更多种相位组合从而获得更多种波束组合使用结果。
在表 2中, 索引值 0对应的波束组合使用结果表示: 选择波束 0为 UE服 务, 且不允许波束 1和波束 2在波束 0使用的时频资源上为其他 UE服务; 相 应的 " 100 "即为对应的波束预编码方式。 索引值 1对应的波束组合使用结果 表示: 选择波束 1作为 UE的服务波束, 且波束 0和波束 2不能在波束 1使用 的时频资源上为其他 UE服务; 相应的 " 010 " 即为对应的波束预编码方式。 索引值 2对应的波束组合使用结果表示: 选择波束 2作为 UE的服务波束, 且 波束 0和波束 1不能在波束 2使用的时频资源上为其他 UE服务;相应的 "001 " 即为对应的波束预编码方式。
在表 2中, 索引值 3对应的波束组合使用结果表示: 选择波束 0作为 UE 的服务波束, 波束 1不能在波束 0使用的时频资源上为其他 UE服务, 而波束 2要在波束 0使用的时频资源上为其他 UE服务; 相应的 " 10*" 即为对应的 波束预编码方式。 索引值 4对应的波束组合使用结果表示: 选择波束 2作为 UE的服务波束, 波束 1不能在波束 2使用的时频资源上为其他 UE服务, 而 波束 0要在波束 2使用的时频资源上为其他 UE服务; 相应的 "*01 " 即为对 应的波束预编码方式。 在表 2中, 索引值 5对应的波束组合使用结果表示: 选择波束 0作为 UE 的服务波束, 波束 1和波束 2要在波束 0使用的时频资源上为其他 UE服务; 相应的 " 1**"即为对应的波束预编码方式。 索引值 6对应的波束组合使用结 果表示: 选择波束 1作为 UE的服务波束, 波束 0和波束 2要在波束 1使用的 时频资源上为其他 UE服务; 相应的 即为对应的波束预编码方式。 索 引值 7对应的波束组合使用结果表示: 选择波束 2作为 UE的服务波束, 波束 1和波束 0要在波束 2使用的时频资源上为其他 UE服务; 相应的 即 为对应的波束预编码方式。
在表 2中, 索引值 8对应的波束组合使用结果表示: 选择波束 0和波束 1作为 UE的服务波束, 波束 0和波束 1的相位不调整, 且波束 2不能在波束 0和波束 1使用的时频资源上为其他 UE服务; 相应的 " 110 " 即为对应的波 束预编码方式。 索引值 9对应的波束组合使用结果表示: 选择波束 0和波束 1作为 UE的服务波束, 波束 0的相位不调整, 波束 1的相位调整 180° , 且 波束 2不能在波束 0和波束 1使用的时频资源上为其他 UE服务;相应的" 1-10 " 即为对应的波束预编码方式。索引值 10对应的波束组合使用结果表示: 选择 波束 1和波束 2作为 UE的服务波束, 波束 1和波束 2的相位不调整, 且波束 0不能在波束 1和波束 2使用的时频资源上为其他 UE服务; 相应的 " 011 " 即为对应的波束预编码方式。索引值 11对应的波束组合使用结果表示: 选择 波束 1和波束 2作为 UE的服务波束, 波束 1的相位不调整, 波束 2的相位调 整 180° ,且波束 0不能在波束 1和波束 2使用的时频资源上为其他 UE服务; 相应的 "01-1 " 即为对应的波束预编码方式。
在表 2中, 索引值 12对应的波束组合使用结果表示: 选择波束 0和波束 1作为 UE的服务波束, 波束 0和波束 1的相位不调整, 且波束 2要在波束 0 和波束 1使用的时频资源上为其他 UE服务; 相应的 " 11*" 即为对应的波束 预编码方式。 索引值 13对应的波束组合使用结果表示: 选择波束 0和波束 1 作为 UE的服务波束, 波束 0的相位不调整, 波束 1的相位调整 180 ° , 且波 束 2要在波束 0和波束 1使用的时频资源上为其他 UE服务; 相应的 " 1-1* " 即为对应的波束预编码方式。索引值 14对应的波束组合使用结果表示: 选择 波束 1和波束 2作为 UE的服务波束, 波束 1和波束 2的相位不调整, 且波束 0要在波束 1和波束 2使用的时频资源上为其他 UE服务; 相应的 即 为对应的波束预编码方式。索引值 15对应的波束组合使用结果表示: 选择波 束 1和波束 2作为 UE的服务波束, 波束 1的相位不调整, 波束 2的相位调整 180 ° , 且波束 0要在波束 1和波束 2使用的时频资源上为其他 UE服务; 相 应的 即为对应的波束预编码方式。
在表 2中, 索引值 16对应的波束组合使用结果表示: 选择波束 0、 波束
1和波束 2作为 UE的服务波束, 并且波束 0、波束 1和波束 2的相位不调整; 相应的 " 111 " 即为对应的波束预编码方式。 索引值 17对应的波束组合使用 结果表示: 选择波束 0、 波束 1和波束 2作为 UE的服务波束, 并且波束 0、 波束 1的相位不调整, 波束 2的相位调整 180 ° ; 相应的 " 11-1 " 即为对应 的波束预编码方式。 索引值 18对应的波束组合使用结果表示: 选择波束 0、 波束 1和波束 2作为 UE的服务波束, 并且波束 0、 波束 2的相位不调整, 波 束 1 的相位调整 180° ; 相应的 " 1-11 " 即为对应的波束预编码方式。 索引 值 19对应的波束组合使用结果表示: 选择波束 0、 波束 1和波束 2作为 UE 的服务波束, 并且波束 0的相位不调整, 波束 1和波束 2的相位调整 180° ; 相应的 " 1-1-1 " 即为对应的波束预编码方式。
基于上述波束预编码表, 步骤 102的一种实施方式包括: UE根据波束预 编码方式在预设的波束预编码表中进行匹配, 获取波束预编码方式对应的索 引值; UE将该波束预编码方式对应的索引值发送给基站。 具体的, UE首先可 以先确定使用的波束组合使用方式, 然后将波束预编码方式在波束预编码表 中所确定的波束组合使用方式下进行匹配, 确定匹配中的波束组合使用结果 对应的索引值, 该索引值即为波束预编码方式对应的索引值。
对基站来说, 也预先配置有波束预编码表, 当基站接收到 UE发送的波束 预编码方式对应的索引值后, 将该索引值在波束预编码表中进行匹配, 确定 匹配中的波束组合使用结果,从而基于得到的波束组合使用结果对 UE进行调 度。
在一可选实施方式中, UE可以在秩指示 (Rank Indication, 简称为 RI ) 子帧之后, 将 UE使用的波束预编码方式发送给基站; 或者, UE也可以在 RI 子帧之前, 将 UE使用的波束预编码方式发送给基站。 可选的, 在上述波束预 编码表的基础上, UE具体可以在 RI子帧之前或之后, 将 UE使用的波束预编 码方式对应的索引值发送给基站。 可选的,当 UE将 UE使用的波束预编码方式对应的索引值发送给基站后, 则 UE后续向基站上报的 PMI、 CQI等都基于 UE使用的波束预编码方式的。
为便于图示, 将 UE向基站上报 UE使用的波束预编码方式对应的索引值 的帧记为波束矩阵指示 (Beam Matrix Indication, 简称为 BMI ) 子帧。 例 如, 一种 UE向基站上报 RI、 BMI和 PMI、 CQI的先后顺序的示意图如图 2所 示。 以图 2所示上报顺序且以表 1所示波束预编码表为例, 如果 UE在 BMI子 帧向基站上报的是选择波束选择方式下的波束 0 (具体上报索引值 0) ,那么 后面的 PMI , CQI都基于 "选择波束 0 "这个假设, 也即仅对波束 0的信道状 态, 反馈 PMI和 CQI; 如果 UE在 BM子帧向基站上报的是选择波束选择方式 下的波束 1 (具体上报索引值 1 ) , 那么后面的 PMI , CQI都基于 "选择波束 1 "这个假设, 也即仅对波束 1的信道状态, 反馈 PMI和 CQI; 如果 UE在 BMI 子帧中向基站上报的是选择波束合作方式下的波束 0和波束 1, 且波束 0和 波束 1 的相位分别是 {1, +j} (具体上报索引值 5 ) , 那么后面的 PMI , CQI 都基于 "选择波束合作方式下的波束 0和波束 1, 且波束 0和波束 1相位分 别是 {1, +j} "这个假设, 也即对波束 0和波束 1的联合信道状态, 反馈 PMI 和 CQI; 如果 UE在 BMI子帧向基站上报的是选择波束合作方式下的波束 0和 波束 1, 且波束 0和波束 1的相位分别是 {1, -j} (具体上报索引值 6 ),那么 后面的 PMI , CQI都基于 "选择波束合作方式下的波束 0和波束 1, 且波束 0 和波束 1的相位分别是 {1, -j} "这个假设, 也即对波束 0和波束 1的联合信 道状态, 反馈 PMI和 CQI。
在本实施例中, UE在波束组合使用时确定各波束的使用方式形成第一波 束组合使用结果, 并通过波束预编码方式指示第一波束组合使用结果, 然后 将波束预编码方式发送给基站,使得基站基于该波束预编码方式对 UE进行调 度。 由于本实施例在确定波束预编码方式过程中采用的波束组合使用方式不 限于波束复用一种, 而是包括波束选择、 波束复用和波束合作, 因此可以灵 活根据波束之间的干扰选择波束组合使用的方式, 例如当波束之间的干扰较 小时, 可以使用波束复用的方法, 提高系统的吞吐量; 当波束之间的干扰比 较大时, 可以使用波束选择或者波束合作等其他的方法, 避免波束之间的干 扰, 提高有用信号的强度, 从而提高系统的吞吐量。
图 3为本发明实施例提供的一种调度方法的流程图。 如图 3所示, 该方 法包括:
301、 基站获取 UE使用的波束预编码方式, 该波束预编码方式用于指示 第一波束组合使用结果, 该第一波束组合使用结果包括在波束组合使用时由 UE确定的各波束的使用方式; 其中, 如果各波束的总数为 2, 则波束组合使 用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数 为 3, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种 或两种, 如果各波束的总数大于或等于 4, 则波束组合使用的方式包括波束 选择、 波束复用和波束合作中的至少一种。
302、 基站根据上述波束预编码方式对 UE进行调度。
在本实施例中, UE使用的波束预编码方式用于指示第一波束组合使用结 果,该第一波束组合使用结果包括在波束组合使用时由 UE确定的各波束的使 用方式。 由于本实施例中波束组合使用的方式不再像现有技术那样仅包括波 束复用一种, 而是包括波束选择、 波束复用和波束合作, 因此第一波束组合 使用结果包括的各波束的使用方式不再限于复用一种方式。 在本实施例中, 由于波束组合使用的方式有多种,因此 UE可以灵活根据波束之间的干扰选择 波束组合使用的方式, 例如当波束之间的干扰较小时, 可以选择波束复用方 式, 进而提高系统的吞吐量; 当波束之间的干扰较大时, 可以选择波束选择 或波束合作等其他方式, 避免波束之间的干扰, 提高有用信号的强度, 进而 提高系统的吞吐量。关于 UE确定波束预编码方式的具体描述可参见前述实施 例, 在此不再赘述。
UE确定波束预编码方式后, 通过将波束预编码方式上报给基站, 这样基 站可以根据该波束预编码方式对 UE进行调度。 对基站来说, 在对 UE进行调 度之前, 要先获取 UE使用的波束预编码方式, 然后基于获取的波束预编码方 式对 UE进行调度。
举例说明, 本实施例涉及的波束组合使用的方式可以是波束选择、 波束 复用和波束合作中的一种。 又例如, 本实施例涉及的波束组合使用的方式还 可以是波束选择、 波束复用和波束合作中任意两种的组合。 又例如, 本实施 例涉及的波束组合使用的方式还可以是波束选择、 波束复用和波束合作三者 的组合。 其中, 波束组合使用的方式在一定程度上可由波束的个数决定。 例 如, 如果各波束的总数为 2个, 则波束组合使用的方式可以是波束选择、 波 束复用和波束合作中的一种。 如果各波束的总数为 3个, 则波束组合使用的 方式可以是波束选择、 波束复用和波束合作中任意一种或任意两种的组合。 如果各波束的总数大于或等于 4, 则波束组合使用的方式可以是波束选择、 波束复用和波束合作中的至少一种。
在此说明, 在本发明实施例中, 波束选择是指要求各波束中至少有一个 不同于服务波束的波束不能在该服务波束使用的时频资源上为其他 UE服务; 其中服务波束是指为 UE服务的波束。
在本发明实施例中, 波束复用是指要求各波束中至少有一个不同于服务 波束的波束在该服务波束使用的时频资源上同时为其他 UE服务。
在本发明实施例中, 波束合作是指要求各波束中至少有两个使用相同时 频资源的波束作为服务波束。
关于波束选择、 波束复用和波束合作的举例说明可参见前述实施例, 在 此不再赘述。
关于波束选择和波束复用组合的方式、波束选择和波束合作组合的方式、 波束复用和波束合作组合的方式、 以及波束选择、 波束复用和波束合作组合 的方式的含义, 可以由上述波束选择、 波束复用和波束选择的含义直接进行 叠加获得。 具体举例说明可参见前述实施例, 在此不再赘述。
在一可选实施方式中, UE和基站侧分别预先配置波束预编码表, 该波束 预编码表存储有各种波束组合使用结果和索引值之间的对应关系。 基站侧的 波束预编码表的实现方式可参见表 1或表 2。
基于此, 步骤 301, 即基站获取 UE使用的波束预编码方式的一种可选实 施方式包括: 基站接收 UE发送的波束预编码方式对应的索引值; 基站根据该 波束预编码方式对应的索引值在预设的波束预编码表中进行匹配, 确定该波 束预编码方式对应的索引值匹配中的波束组合使用结果。
在一可选实施方式中, 步骤 302, 即基站根据波束预编码方式对 UE进行 调度的一种实施方式包括: 基站根据波束预编码方式所指示的第一波束组合 使用结果, 从各波束中确定 UE的服务波束以及其他波束的使用方式; 为 UE 的服务波束分配时频资源, 通过服务波束在该时频资源上向 UE传输数据, 并 根据其他波束的使用方式通过其他波束传输数据。
对于其他波束的使用方式可能是: 不能在服务波束使用的时频资源上向 其他 UE传输数据,则基站根据其他波束的使用方式通过其他波束传输数据的 过程包括:基站禁止通过其他波束在服务波束使用的时频资源上向其他 UE传 输数据。 例如, 基站可以通过其他波束在不同于该服务波束使用的时频资源 上向其他 UE传输数据。其中, 关于不同于服务波束使用的时频资源可以由基 站确定,所述其他 UE也可以由基站基于各 UE的波束预编码方式从中确定出。
对于其他波束的使用方式还可能是: 要在服务波束使用的时频资源上向 其他 UE同时传输数据,则基站根据其他波束的使用方式通过其他波束传输数 据的过程包括: 基站通过其他波束在服务波束使用的时频资源上同时向其他 UE传输数据。 所述其他 UE也可以由基站基于各 UE的波束预编码方式从中确 定出。
进一步可选的, 在波束组合使用的方式涉及波束合作情况时, UE的服务 波束至少有两个, 此时至少两个服务波束之间的相位可能相同, 也可能不同。 对 UE来说, 为了获得尽可能大的接收信号强度, 有可能要求对部分或全部服 务波束以指定的相位工作, 那么基站可能需要对服务波束的相位进行调整, 这个需要对服务波束的相位进行调整的信息也属于 UE 使用的波束预编码方 式中的一部分信息。 基于此, 如果波束组合使用的方式包括波束合作, 则基 站在通过服务波束在分配给服务波束的时频资源上向 UE传输数据之前,还可 以根据 UE使用的波束预编码方式, 确定每个服务波束工作的相位, 如果服务 波束未工作在所述确定的相位上, 对服务波束的相位进行调整, 使服务波束 工作在所述确定的相位上。 相应的, 基站在通过服务波束在分配给服务波束 的时频资源上向 UE传输数据, 包括: 基站通过相位调整后的服务波束在时频 资源上向 UE传输数据。 对服务波束进行调整是将服务波束的相位调整到 UE 指定的相位上。
在一可选实施方式中, UE使用的预编码方式表示服务波束中基准服务波 束的接收信号相位以及该基准服务波束的接收信号相位与其他服务波束的接 收信号相位的差值。则基站根据 UE使用的波束预编码方式, 确定每个服务波 束工作的相位, 包括: 基站根据波束预编码方式, 确定基准服务波束的接收 信号相位以及该基准服务波束的接收信号相位与其他服务波束的接收信号相 位的差值; 将基准服务波束的接收信号相位作为基准服务波束工作的相位, 并将该基准服务波束的接收信号相位和该基准服务波束的接收信号相位与其 他服务波束的接收信号相位的差值相加, 获得其他服务波束工作的相位。 下面结合第一波束组合使用结果的具体情况, 对步骤 302做详细说明。 一种情况: 波束组合使用的方式是波束选择, 则第一波束组合使用结果 包括: 第一波束的使用方式是作为 UE的服务波束, 其它波束的使用方式是不 能在服务波束的时频资源上为其他 UE服务。则步骤 302的实施方式包括: 基 站为作为服务波束的第一波束分配时频资源; 基站通过该第一波束在所分配 的时频资源上向 UE 传输数据, 并禁止通过其他波束在该时频资源上向其他 UE传输数据, 基站可以通过其他波束在不同于该时频资源的其他时频资源上 向其他 UE传输数据。
另一种情况: 波束组合使用的方式是波束选择和波束复用, 则第一波束 组合使用结果包括: 第一波束的使用方式是作为 UE的服务波束, 第二波束的 使用方式是不能在服务波束的时频资源上为其他 UE服务,第三波束的使用方 式是要在服务波束的时频资源上为其他 UE服务。其中, 第二波束和第三波束 的个数并不限于一个。 则步骤 302的实施方式包括: 基站为作为服务波束的 第一波束分配时频资源;基站通过第一波束在所分配的时频资源上向 UE传输 数据, 并通过第三波束在该时频资源上向其他 UE传输数据, 同时禁止通过第 二波束在该时频资源上向其他 UE传输数据。
又一种情况: 波束组合使用的方式是波束复用, 则第一波束组合使结果 包括第一波束的使用方式是作为 UE的服务波束,其它波束的使用方式是要在 服务波束的时频资源上为其他 UE服务。则步骤 302的实施方式包括: 基站为 作为服务波束的第一波束分配时频资源; 基站通过第一波束在所分配的时频 资源上向 UE传输数据,并通过其他波束在该时频资源上向其他 UE传输数据。
又一种情况: 波束组合使用的方式是波束合作, 则第一波束组合使用结 果包括: 第一波束的使用方式是以第一相位作为 UE的服务波束, 第二波束的 使用方式是以第二相位作为 UE的服务波束。这里第一相位和第二相位可以相 同, 也可以不相同。 则步骤 302的实施方式包括: 基站为作为服务波束的第 一波束和第二波束分配时频资源; 基站通过所述第一波束和第二波束在所分 配的时频资源上向 UE传输数据。可选的,如果第一波束未工作在第一相位上, 则基站需要对第一波束进行相位调整, 使第一波束工作在第一相位上, 然后 通过相位调整后的第一波束在所分配的时频资源上向 UE传输数据。 可选的, 如果第二波束未工作在第二相位上,则基站确定要对第二波束进行相位调整, 使第二波束工作在第二相位上, 然后通过相位调整后的第二波束在所分配的 时频资源上向 UE传输数据。 其中, 基站可能只需对第一波束进行相位调整, 也可能只需对第二波束进行相位调整, 也可能同时需要对第一波束和第二波 束进行相位调整。
又一种情况: 波束组合使用的方式包括波束选择和波束合作, 则第一波 束组合使用结果包括: 第一波束的使用方式是以第一相位作为 UE 的服务波 束, 第二波束的使用方式是以第二相位作为 UE的服务波束, 其他波束的使用 方式是不能在服务波束使用的时频资源上为其他 UE服务。则步骤 302的实施 方式包括: 基站为作为服务波束的第一波束和第二波束分配时频资源; 如果 需要, 基站还要对第一波束和 /或第二波束进行相应的相位调整; 基站通过第 一波束和第二波束, 或者通过相位调整后的第一波束和第二波束在所分配的 时频资源上向 UE传输数据,并禁止通过除第一波束和第二波束外的其他波束 在该时频资源上向其他 UE传输数据。
又一种情况: 波束组合使用的方式包括波束复用和波束合作, 则第一波 束组合使用结果包括第一波束的使用方式是以第一相位作为 UE的服务波束, 第二波束的使用方式是以第二相位作为 UE的服务波束,其他波束的使用方式 是在服务波束使用的时频资源上同时为其他 UE服务。则步骤 302的实施方式 包括: 基站为作为服务波束的第一波束和第二波束分配时频资源; 如果需要, 基站还要对第一波束和 /或第二波束进行相应的相位调整;基站通过第一波束 和第二波束, 或者通过相位调整后的第一波束和第二波束在所分配的时频资 源上向 UE传输数据,并通过除第一波束和第二波束外的其他波束在该时频资 源上向其他 UE传输数据。
由上述可见, 在本实施例中, 基站基于 UE使用的波束预编码方式对 UE 进行调度, 由于在该波束预编码方式的确定过程中采用的波束组合使用方式 不限于波束复用一种, 而是包括波束选择、 波束复用和波束合作, 因此可以 灵活根据波束之间的干扰选择波束组合使用的方式, 所以基站基于该预编码 方式对 UE 进行调度时, 组合使用各波束的方式充分考虑到各波束之间的干 扰, 有利于提高系统的吞吐量。
图 4a为本发明实施例提供的一种 UE的结构示意图。 如图 4a所示, 该 UE包括: 确定模块 41和发送模块 42。
确定模块 41, 用于确定该 UE使用的波束预编码方式, 该波束预编码方 式用于指示第一波束组合使用结果, 该第一波束组合使用结果包括在波束组 合使用时由 UE确定的各波束的使用方式。 其中, 如果各波束的总数为 2, 则 波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各 波束的总数为 3, 则波束组合使用的方式包括所述波束选择、 所述波束复用 和所述波束合作中的一种或两种, 如果各波束的总数大于或等于 4, 则波束 组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少 一种。
发送模块 42, 用于将确定模块 41确定的波束预编码方式发送给基站, 以使基站基于该波束预编码方式对 UE进行调度。
在本实施例中, 波束选择是指要求各波束中至少有一个不同于服务波束 的波束不能在该服务波束使用的时频资源上为其他 UE服务。
波束复用是指要求各波束中至少有一个不同于服务波束的波束在该服务 波束使用的时频资源上同时为其他 UE服务。
波束合作是指要求各波束中至少有两个使用相同时频资源的波束作为服 务波束。
上述服务波束是指各波束中为本实施例 UE服务的波束。
在一可选实施方式中, 确定模块 41确定 UE使用的波束预编码方式, 具 体包括: 根据各波束的接收信号强度, 确定各波束中接收信号强度最大的波 束作为第一服务波束, 并将第一服务波束的接收信号强度与其他波束的接收 信号强度的差值分别与预设的第一门限和预设的第二门限进行比较, 根据比 较结果确定其他波束的使用方式, 获得第一波束组合使用结果, 并用波束预 编码方式表示第一波束组合使用结果。 其中, 第一门限大于第二门限。
进一步可选的,确定模块 41将第一服务波束的接收信号强度与其他波束 的接收信号强度的差值分别与预设的第一门限和预设的第二门限进行比较, 根据比较结果确定其他波束的使用方式, 包括: 将第一差值分别与第一门限 和第二门限进行比较, 该第一差值是第一服务波束的接收信号强度与其他波 束中的第二波束的接收信号强度的差值, 第二波束可以是其他波束中的任意 波束; 如果该第一差值大于第一门限, 确定第二波束可以在第一服务波束使 用的时频资源上为其他 UE服务, 如果该第一差值小于所述第二门限, 确定第 二波束作为第二服务波束为本实施例 UE服务,如果该第一差值大于第二门限 且小于第一门限, 确定第二波束不能在第一服务波束使用的时频资源上为其 他 UE服务。
在一可选实施方式中, 如图 4b所示, 该 UE还包括: 相位指定模块 43。 相位指定模块 43, 用于在所束组合使用的方式包括波束合作时, 根据至少两 个服务波束的接收信号相位, 指定每个服务波束工作的相位, 并用确定模块 41所确定的波束预编码方式表示每个服务波束工作的相位。
进一步可选的, 相位指定模块 43 根据至少两个服务波束的接收信号相 位, 指定每个服务波束工作的相位, 并用波束预编码方式表示每个服务波束 工作的相位, 具体包括: 从至少两个服务波束中确定一个服务波束作为基准 服务波束, 获得基准服务波束的接收信号相位与其他服务波束的接收信号相 位的差值, 并用波束预编码方式表示基准服务波束的接收信号相位以及基准 服务波束的接收信号相位与其他服务波束的接收信号相位的差值。
在一可选实施方式中, 发送模块 42将确定模块 41确定的波束预编码方 式发送给基站, 具体包括: 根据波束预编码方式在预设的波束预编码表中进 行匹配, 获取波束预编码方式对应的索引值, 将波束预编码方式对应的索引 值发送给基站; 其中, 波束预编码表存储有各种波束组合使用结果和索引值 之间的对应关系。
在一可选实施方式中, 发送模块 42将确定模块 41确定的波束预编码方 式发送给基站, 具体包括: 在 RI子帧之后, 将波束预编码方式发送给基站; 或者, 在 RI子帧之前, 将波束预编码方式发送给基站。
本实施例提供的 UE 的各功能模块可用于执行图 1所示方法实施例的流 程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的 UE, 在波束组合使用时确定各波束的使用方式形成第一 波束组合使用结果, 并通过波束预编码方式指示第一波束组合使用结果, 然 后将波束预编码方式发送给基站, 使得基站基于该波束预编码方式对本实施 例 UE进行调度。 由于本实施例 UE在确定波束预编码方式过程中采用的波束 组合使用方式不限于波束复用一种, 而是包括波束选择、 波束复用和波束合 作, 因此可以灵活根据波束之间的干扰选择波束组合使用的方式, 例如当波 束之间的干扰较小时, 可以使用波束复用的方法, 提高系统的吞吐量; 当波 束之间的干扰比较大时, 可以使用波束选择或者波束合作等其他的方法, 避 免波束之间的干扰, 提高有用信号的强度, 从而提高系统的吞吐量。
图 5为本发明实施例提供的又一种 UE的结构示意图。 如图 5所示, 该 UE包括: 处理器 51和发射器 53。
处理器 51用于, 确定该 UE使用的波束预编码方式, 该波束预编码方式 用于指示第一波束组合使用结果, 该第一波束组合使用结果包括在波束组合 使用时由 UE确定的各波束的使用方式。
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种。
发射器 53, 用于将处理器 51确定的波束预编码方式发送给基站, 以使 基站基于该波束预编码方式对 UE进行调度。
在本实施例中, 波束选择是指要求各波束中至少有一个不同于服务波束 的波束不能在该服务波束使用的时频资源上为其他 UE服务。
波束复用是指要求各波束中至少有一个不同于服务波束的波束在该服务 波束使用的时频资源上同时为其他 UE服务。
波束合作是指要求各波束中至少有两个使用相同时频资源的波束作为服 务波束。
上述服务波束是指各波束中为本实施例 UE服务的波束。
进一步, 本实施例的 UE还可以包括存储器 52。
存储器 52可以包括只读存储器和随机存取存储器, 并向处理器 51提供 指令和数据。 存储器 52 的一部分还可以包括非易失性随机存取存储器 (NVRAM) , 例如快闪存储器。
存储器 52存储了如下的元素, 可执行模块或者数据结构, 或者它们的子 集, 或者它们的扩展集:
操作指令: 包括各种操作指令, 用于实现各种操作。
操作系统: 包括各种系统程序, 用于实现各种基础业务以及处理基于硬 件的任务。
在本发明实施例中, 处理器 51通过调用存储器 52存储的操作指令 (该 操作指令可存储在操作系统中) , 执行相应操作。
可选的, 处理器 51可以控制本实施例 UE的操作, 处理器 51还可以称为 中央处理单元 (Central Processing Uni t , 简称为 CPU) 。 存储器 52可以 包括只读存储器和随机存取存储器, 并向处理器 51提供指令和数据。存储器 52的一部分还可以包括非易失性随机存取存储器 (NVRAM ) 。 具体的应用中, 本实施例 UE的各个组件可以通过总线系统 55耦合在一起, 其中总线系统 55 除包括数据总线之外, 还可以包括电源总线、 控制总线和状态信号总线等。 但是为了清楚说明起见, 在图中将各种总线都标为总线系统 55。 当然, 处理 器 51也可以通过其他方式分别与其他组件相耦合。
上述本发明实施例揭示的方法可以应用于处理器 51 中, 或者由处理器 51 实现。 处理器 51可以是一种集成电路芯片, 具有信号的处理能力。 在实 现过程中,上述方法的各步骤可以通过处理器 51中的集成的硬件逻辑电路或 者软件形式的指令完成。上述的处理器 51可以是通用处理器、数字信号处理 器 (DSP ) 、 专用集成电路 (ASIC ) 、 现成可编程门阵列 (FPGA) 或者其他可 编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件组件。 通用处理器可 以是微处理器或者该处理器也可以是任何常规的处理器等, 可以是通用处理 器或者专用处理器。 结合本发明实施例所公开的方法的步骤可以直接体现为 硬件译码处理器执行完成, 或者用译码处理器中的硬件及软件模块组合执行 完成。 软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读存储 器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该存储 介质位于存储器 52, 处理器 51读取存储器 52中的信息, 结合其硬件完成上 述方法的步骤。
在一可选实施方式中, 如图 5所示, 该 UE还包括: 功率测量电路 56。 功率测量电路 56, 用于测量各波束的接收信号强度。 功率测量电路 56可以 通过总线系统 55和处理器 51相耦合,也可以通过其他线路和处理器 51相耦 合。 在一个实施例中, 功率测量电路 56的输入端和接收器 54的输出端相耦 合, 例如, 接收器 54的输出端分出一支旁路耦合到功率测量电路 56的输入 基于功率测量电路 56测量到的各波束的接收信号强度, 处理器 51确定 UE使用的波束预编码方式, 具体包括: 根据各波束的接收信号强度, 确定各 波束中接收信号强度最大的波束作为第一服务波束, 并将第一服务波束的接 收信号强度与其他波束的接收信号强度的差值分别与预设的第一门限和预设 的第二门限进行比较, 根据比较结果确定其他波束的使用方式, 获得第一波 束组合使用结果, 并用波束预编码方式表示第一波束组合使用结果。 其中, 第一门限大于第二门限。
进一步可选的,处理器 51将第一服务波束的接收信号强度与其他波束的 接收信号强度的差值分别与预设的第一门限和预设的第二门限进行比较, 根 据比较结果确定其他波束的使用方式, 具体包括: 将第一差值分别与第一门 限和第二门限进行比较, 该第一差值是第一服务波束的接收信号强度与其他 波束中的第二波束的接收信号强度的差值, 第二波束可以是其他波束中的任 意波束; 如果该第一差值大于第一门限, 确定第二波束可以在第一服务波束 使用的时频资源上为其他 UE服务, 如果该第一差值小于第二门限, 确定第二 波束作为第二服务波束为 UE服务,如果第一差值大于第二门限且小于第一门 限, 确定第二波束不能在第一服务波束使用的时频资源上为其他 UE服务。
在一可选实施方式中, 处理器 51还用于, 在波束组合使用的方式包括波 束合作时, 根据至少两个服务波束的接收信号相位, 指定每个服务波束工作 的相位, 并用波束预编码方式表示每个服务波束工作的相位。
进一步可选的, 处理器 51根据至少两个服务波束的接收信号相位, 指定 每个服务波束工作的相位, 并用波束预编码方式表示每个服务波束工作的相 位, 具体包括: 从至少两个服务波束中确定一个服务波束作为基准服务波束, 获得基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 并用波束预编码方式表示基准服务波束的接收信号相位以及基准服务波束的 接收信号相位与其他服务波束的接收信号相位的差值。
在一可选实施方式中,处理器 51还用于根据波束预编码方式在预设的波 束预编码表中进行匹配, 获取波束预编码方式对应的索引值, 并提供给发射 器 53。发射器 53将处理器 51确定的波束预编码方式发送给基站,具体包括: 将处理器 51提供的波束预编码方式对应的索引值发送给基站。其中, 波束预 编码表存储有各种波束组合使用结果和索引值之间的对应关系。 在一可选实施方式中, 发射器 53将处理器 51确定的波束预编码方式发 送给基站, 具体包括:在 RI子帧之后,将波束预编码方式发送给基站; 或者, 在 RI子帧之前, 将波束预编码方式发送给基站。
进一步, 如图 5所示, 该 UE还可以包括: 接收器 54。 接收器 54与发射 器 53相配合, 可以完成该 UE与其他设备之间的通信。
本实施例提供的 UE可用于执行图 1所示方法实施例的流程,其具体工作 原理不再赘述, 详见方法实施例的描述。
本实施例提供的 UE, 在波束组合使用时确定各波束的使用方式形成第一 波束组合使用结果, 并通过波束预编码方式指示第一波束组合使用结果, 然 后将波束预编码方式发送给基站, 使得基站基于该波束预编码方式对用户设 备进行调度。由于本实施例 UE在确定波束预编码方式过程中采用的波束组合 使用方式不限于波束复用一种, 而是包括波束选择、 波束复用和波束合作, 因此可以灵活根据波束之间的干扰选择波束组合使用的方式, 例如当波束之 间的干扰较小时, 可以使用波束复用的方法, 提高系统的吞吐量; 当波束之 间的干扰比较大时, 可以使用波束选择或者波束合作等其他的方法, 避免波 束之间的干扰, 提高有用信号的强度, 从而提高系统的吞吐量。
图 6为本发明实施例提供的一种基站的结构示意图。 如图 6所示, 该基 站包括: 获取模块 61和调度模块 62。
获取模块 61, 用于获取 UE使用的波束预编码方式, 该波束预编码方式 用于指示第一波束组合使用结果, 该第一波束组合使用结果包括在波束组合 使用时由 UE确定的各波束的使用方式。
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种。
调度模块 62, 用于根据获取模块 61获取的波束预编码方式对 UE进行调 度。
在本实施例中, 波束选择是指要求各波束中至少有一个不同于服务波束 的波束不能在该服务波束使用的时频资源上为其他 UE服务。 波束复用是指要求各波束中至少有一个不同于服务波束的波束在该服务 波束使用的时频资源上同时为其他 UE服务。
波束合作是指要求各波束中至少有两个使用相同时频资源的波束作为服 务波束。
上述服务波束是指各波束中为本实施例 UE服务的波束。
在一可选实施方式中, 获取模块 61获取 UE使用的波束预编码方式, 具 体包括: 接收 UE发送的波束预编码方式对应的索引值, 根据波束预编码方式 对应的索引值在预设的波束预编码表中进行匹配, 确定波束预编码方式对应 的索引值匹配中的波束组合使用结果; 其中, 波束预编码表存储有各种波束 组合使用结果和索引值之间的对应关系。
在一可选实施方式中, 调度模块 62根据获取模块 61获取的波束预编码 方式对 UE进行调度, 具体包括: 根据波束预编码方式指示的第一波束组合使 用结果, 从各波束中确定 UE的服务波束以及其他波束的使用方式, 为服务波 束分配时频资源, 通过服务波束在时频资源上向 UE传输数据, 并根据其他波 束的使用方式通过其他波束传输数据。
进一步可选的,调度模块 62根据其他波束的使用方式通过其他波束传输 数据, 具体包括: 在其他波束的使用方式为: 不能在服务波束使用的时频资 源上向其他 UE传输数据时,禁止通过其他波束在服务波束使用的时频资源上 向其他 UE传输数据; 以及在其他波束的使用方式为: 要在服务波束使用的时 频资源上向其他 UE同时传输数据时,通过其他波束在服务波束使用的时频资 源上同时向其他 UE传输数据。
在一可选实施方式中,调度模块 62还用于在波束组合使用的方式包括波 束合作时, 在通过服务波束在所分配的时频资源上向 UE传输数据之前, 根据 UE使用的波束预编码方式, 确定每个服务波束工作的相位; 如果服务波束未 工作在所述确定的相位上, 对服务波束的相位进行调整, 使服务波束工作在 所述确定的相位上。基于此, 调度模块 62用于通过服务波束在所分配的时频 资源上向 UE传输数据, 包括: 调度模块 62具体用于通过相位调整后的服务 波束在时频资源上向 UE传输数据。
进一步可选的, 调度模块 62根据 UE使用的波束预编码方式, 确定每个 服务波束工作的相位, 具体包括: 根据 UE使用的波束预编码方式, 确定基准 服务波束的接收信号相位以及该基准服务波束的接收信号相位与其他服务波 束的接收信号相位的差值, 将该基准服务波束的接收信号相位作为基准服务 波束工作的相位, 并将该基准服务波束的接收信号相位和该基准服务波束的 接收信号相位与其他服务波束的接收信号相位的差值相加, 获得其他服务波 束工作的相位。
本实施例提供的基站的各功能模块可用于执行图 3所示方法实施例的流 程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的基站, 与上述实施例提供的 UE相配合, 在对 UE进行调 度时, 获取 UE使用的波束预编码方式, 基于该波束预编码方式对 UE进行调 度。 由于在该波束预编码方式的确定过程中采用的波束组合使用方式不限于 波束复用一种, 而是包括波束选择、 波束复用和波束合作, 因此可以灵活根 据波束之间的干扰选择波束组合使用的方式, 所以本实施例基站在基于该预 编码方式对 UE进行调度时,组合使用各波束的方式充分考虑到各波束之间的 干扰, 有利于提高系统的吞吐量。
图 7为本发明实施例提供的另一种基站的结构示意图。 如图 7所示, 该 基站包括: 处理器 72。
处理器 72, 用于获取 UE使用的波束预编码方式, 根据该波束预编码方 式对 UE进行调度;其中,该波束预编码方式用于指示第一波束组合使用结果, 该第一波束组合使用结果包括在波束组合使用时由 UE 确定的各波束的使用 方式。
其中, 各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束 复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的方式 包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如果各 波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述 波束复用和所述波束合作中的至少一种。
在本实施例中, 波束选择是指要求各波束中至少有一个不同于服务波束 的波束不能在该服务波束使用的时频资源上为其他 UE服务。
波束复用是指要求各波束中至少有一个不同于服务波束的波束在该服务 波束使用的时频资源上同时为其他 UE服务。
波束合作是指要求各波束中至少有两个使用相同时频资源的波束作为服 务波束。
上述服务波束是指各波束中为本实施例 UE服务的波束。
进一步, 如图 7所示, 该基站还可以包括存储器 71。
存储器 71可以包括只读存储器和随机存取存储器, 并向处理器 72提供 指令和数据。 存储器 71 的一部分还可以包括非易失性随机存取存储器 (NVRAM)
存储器 71存储了如下的元素, 可执行模块或者数据结构, 或者它们的子 集, 或者它们的扩展集:
操作指令: 包括各种操作指令, 用于实现各种操作。
操作系统: 包括各种系统程序, 用于实现各种基础业务以及处理基于硬 件的任务。
在本发明实施例中, 处理器 72通过调用存储器 71存储的操作指令 (该 操作指令可存储在操作系统中) , 执行相应操作。
可选的, 处理器 72可以控制本实施例基站的操作, 处理器 72还可以称 为 CPU。 存储器 71 可以包括只读存储器和随机存取存储器, 并向处理器 72 提供指令和数据。 存储器 71 的一部分还可以包括非易失性随机存取存储器 (NVRAM) 。 具体的应用中, 本实施例基站的各个组件通过总线系统 75耦合 在一起, 其中总线系统 75除包括数据总线之外, 还可以包括电源总线、 控制 总线和状态信号总线等。 但是为了清楚说明起见, 在图中将各种总线都标为 总线系统 75。
上述本发明实施例揭示的方法可以应用于处理器 72 中, 或者由处理器 72实现。 处理器 72可能是一种集成电路芯片, 具有信号的处理能力。 在实 现过程中,上述方法的各步骤可以通过处理器 72中的硬件的集成逻辑电路或 者软件形式的指令完成。上述的处理器 72可以是通用处理器、数字信号处理 器 (DSP ) 、 专用集成电路 (ASIC ) 、 现成可编程门阵列 (FPGA) 或者其他可 编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件组件。 通用处理器可 以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本发明实施 例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成, 或者用译 码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储器、 寄存器 等本领域成熟的存储介质中。 该存储介质位于存储器 71, 处理器 72读取存 储器 71中的信息, 结合其硬件完成上述方法的步骤。
在一可选实施方式中, 如图 7所示, 该基站还包括接收器 73。
接收器 73可用于接收 UE发送的波束预编码方式对应的索引值。基于此, 处理器 72获取 UE使用的波束预编码方式, 具体包括: 根据接收器 73接收的 波束预编码方式对应的索引值在预设的波束预编码表中进行匹配, 确定波束 预编码方式对应的索引值匹配中的波束组合使用结果; 其中, 波束预编码表 存储有各种波束组合使用结果和索引值之间的对应关系。
在一可选实施方式中, 如图 7所示, 该基站还包括: 发射器 74。
处理器 72根据该波束预编码方式对 UE进行调度, 具体包括: 根据波束 预编码方式指示的第一波束组合使用结果,从各波束中确定 UE的服务波束以 及其他波束的使用方式, 为服务波束分配时频资源, 控制发射器 74通过服务 波束在时频资源上向 UE传输数据, 并控制发射器 74根据其他波束的使用方 式通过其他波束传输数据。相应的, 发射器 74可用于在处理器 72的控制下, 通过服务波束在时频资源上向 UE传输数据,并根据其他波束的使用方式通过 其他波束传输数据。
进一步可选的, 处理器 72控制发射器 74根据其他波束的使用方式通过 所述其他波束传输数据, 具体包括: 在其他波束的使用方式为: 不能在服务 波束使用的时频资源上向其他 UE传输数据时, 禁止发射器 74通过其他波束 在服务波束使用的时频资源上向其他 UE传输数据; 以及在其他波束的使用方 式为: 要在服务波束使用的时频资源上向其他 UE同时传输数据时, 控制发射 器 74通过其他波束在服务波束使用的时频资源上同时向其他 UE传输数据。
相应的, 发射器 74在处理器 72的控制下, 根据其他波束的使用方式通 过其他波束传输数据, 具体包括: 在其他波束的使用方式为: 不能在服务波 束使用的时频资源上向其他 UE传输数据时,不通过其他波束在服务波束使用 的时频资源上向其他 UE传输数据; 以及在其他波束的使用方式为: 要在服务 波束使用的时频资源上向其他 UE同时传输数据时,通过其他波束在服务波束 使用的时频资源上同时向其他 UE传输数据。
在一可选实施方式中,处理器 72还用于在波束组合使用的方式包括波束 合作时, 在控制发射器 74通过服务波束在时频资源上向 UE传输数据之前, 根据 UE使用的波束预编码方式, 确定每个服务波束工作的相位, 如果服务波 束未工作在所述确定的相位上, 对服务波束的相位进行调整, 使服务波束工 作在所述确定的相位上。 基于此, 处理器 72控制发射器 74通过服务波束在 时频资源上向 UE传输数据, 具体包括: 控制发射器 74通过相位调整后的服 务波束在时频资源上向 UE传输数据。
进一步可选的, 处理器 72根据 UE使用的波束预编码方式, 确定每个服 务波束工作的相位, 具体包括: 根据 UE使用的波束预编码方式, 确定基准服 务波束的接收信号相位以及该基准服务波束的接收信号相位与其他服务波束 的接收信号相位的差值, 将该基准服务波束的接收信号相位作为该基准服务 波束工作的相位, 并将该基准服务波束的接收信号相位和该基准服务波束的 接收信号相位与其他服务波束的接收信号相位的差值相加, 获得其他服务波 束工作的相位。
本实施例提供的基站可用于执行图 3所示方法实施例的流程, 其具体工 作原理不再赘述, 详见方法实施例的描述。
本实施例提供的基站, 与上述实施例提供的 UE相配合, 在对 UE进行调 度时, 获取 UE使用的波束预编码方式, 基于该波束预编码方式对 UE进行调 度。 由于在该波束预编码方式的确定过程中采用的波束组合使用方式不限于 波束复用一种, 而是包括波束选择、 波束复用和波束合作, 因此可以灵活根 据波束之间的干扰选择波束组合使用的方式, 所以本实施例基站在基于该预 编码方式对 UE进行调度时,组合使用各波束的方式充分考虑到各波束之间的 干扰, 有利于提高系统的吞吐量。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权利 要 求书
1、 一种波束预编码方式上报方法, 其特征在于, 包括:
用户设备 UE确定所述 UE使用的波束预编码方式, 所述波束预编码方式 用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束组 合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
所述 UE将所述波束预编码方式发送给基站, 以使所述基站基于所述波束 预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
2、 根据权利要求 1所述的方法, 其特征在于, 所述用户设备 UE确定所 述 UE使用的波束预编码方式, 包括:
所述 UE根据所述各波束的接收信号强度,确定所述各波束中接收信号强 度最大的波束作为第一服务波束, 并将所述第一服务波束的接收信号强度与 其他波束的接收信号强度的差值分别与预设的第一门限和预设的第二门限进 行比较, 根据比较结果确定其他波束的使用方式, 获得所述第一波束组合使 用结果;
所述 UE用波束预编码方式表示所述第一波束组合使用结果;
其中, 所述第一门限大于所述第二门限。
3、 根据权利要求 2所述的方法, 其特征在于, 所述 UE将所述第一服务 波束的接收信号强度与其他波束的接收信号强度的差值分别与预设的第一门 限和预设的第二门限进行比较, 根据比较结果确定其他波束的使用方式, 包 括:
所述 UE将第一差值分别与所述第一门限和所述第二门限进行比较,所述 第一差值是所述第一服务波束的接收信号强度与所述其他波束中的第二波束 的接收信号强度的差值;
如果所述第一差值大于所述第一门限, 确定所述第二波束可以在所述第 一服务波束使用的时频资源上为其他 UE服务;
如果所述第一差值小于所述第二门限, 确定所述第二波束作为第二服务 波束为所述 UE服务;
如果所述第一差值大于所述第二门限且小于所述第一门限, 确定所述第 二波束不能在所述第一服务波束使用的时频资源上为其他 UE服务。
4、 根据权利要求 1-3任一项所述的方法, 其特征在于, 如果波束组合使 用的方式包括波束合作, 所述方法还包括:
所述 UE根据所述至少两个服务波束的接收信号相位,指定每个服务波束 工作的相位, 并用所述波束预编码方式表示每个服务波束工作的相位。
5、 根据权利要求 4所述的方法, 其特征在于, 所述根据所述至少两个服 务波束的接收信号相位, 指定每个服务波束工作的相位, 并用所述波束预编 码方式表示每个服务波束工作的相位, 包括:
所述 UE 从所述至少两个服务波束中确定一个服务波束作为基准服务波 束, 获得所述基准服务波束的接收信号相位与其他服务波束的接收信号相位 的差值;
所述 UE 用所述波束预编码方式表示所述基准服务波束的接收信号相位 以及所述基准服务波束的接收信号相位与所述其他服务波束的接收信号相位 的差值。
6、 根据权利要求 1-5任一项所述的方法, 其特征在于, 所述 UE将所述 波束预编码方式发送给基站, 包括:
所述 UE根据所述波束预编码方式在预设的波束预编码表中进行匹配,获 取所述波束预编码方式对应的索引值, 所述波束预编码表存储有各种波束组 合使用结果和索引值之间的对应关系;
所述 UE将所述波束预编码方式对应的索引值发送给所述基站。
7、 根据权利要求 1-6任一项所述的方法, 其特征在于, 所述 UE将所述 波束预编码方式发送给基站, 包括:
所述 UE在秩指示 RI子帧之后,将所述波束预编码方式发送给所述基站; 或者
所述 UE在 RI子帧之前, 将所述波束预编码方式发送给所述基站。
8、 一种调度方法, 其特征在于, 包括:
基站获取用户设备 UE使用的波束预编码方式,所述波束预编码方式用于 指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束组合使 用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
所述基站根据所述波束预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
9、 根据权利要求 8 所述的方法, 其特征在于, 所述基站获取用户设备 UE使用的波束预编码方式, 包括:
所述基站接收所述 UE发送的所述波束预编码方式对应的索引值; 所述基站根据所述波束预编码方式对应的索引值在预设的波束预编码表 中进行匹配, 确定所述波束预编码方式对应的索引值匹配中的波束组合使用 结果; 其中, 所述波束预编码表存储有各种波束组合使用结果和索引值之间 的对应关系。
10、 根据权利要求 8或 9所述的方法, 其特征在于, 所述基站根据所述 波束预编码方式对所述 UE进行调度, 包括:
所述基站根据所述波束预编码方式指示的所述第一波束组合使用结果, 从各波束中确定所述 UE的服务波束以及其他波束的使用方式;
所述基站为所述服务波束分配时频资源, 通过所述服务波束在所述时频 资源上向所述 UE传输数据,并根据其他波束的使用方式通过所述其他波束传 输数据。
11、 根据权利要求 10所述的方法, 其特征在于, 所述基站根据其他波束 的使用方式通过所述其他波束传输数据, 包括:
如果所述其他波束的使用方式为: 不能在所述服务波束使用的时频资源 上向其他 UE传输数据,则所述基站禁止通过所述其他波束在所述服务波束使 用的时频资源上向其他 UE传输数据;
如果所述其他波束的使用方式为: 要在所述服务波束使用的时频资源上 向其他 UE同时传输数据,则所述基站通过所述其他波束在所述服务波束使用 的时频资源上同时向其他 UE传输数据。
12、 根据权利要求 10或 11所述的方法, 其特征在于, 如果所述波束组 合使用的方式包括波束合作, 所述基站通过所述服务波束在所述时频资源上 向所述 UE传输数据之前, 还包括:
所述基站根据所述波束预编码方式, 确定每个服务波束工作的相位, 如 果所述服务波束未工作在所述确定的相位上, 所述基站对所述服务波束的相 位进行调整, 使所述服务波束工作在所述确定的相位上。
13、 根据权利要求 12所述的方法, 其特征在于, 所述基站根据所述波束 预编码方式, 确定每个服务波束工作的相位, 包括:
所述基站根据所述波束预编码方式, 确定基准服务波束的接收信号相位 以及所述基准服务波束的接收信号相位与其他服务波束的接收信号相位的差 值;
所述基站将所述基准服务波束的接收信号相位作为所述基准服务波束工 作的相位, 并将所述基准服务波束的接收信号相位和所述基准服务波束的接 收信号相位与所述其他服务波束的接收信号相位的差值相加, 获得所述其他 服务波束工作的相位。
14、 一种用户设备 UE, 其特征在于, 包括: 确定模块, 用于确定所述 UE使用的波束预编码方式, 所述波束预编码方 式用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束 组合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
发送模块, 用于将所述波束预编码方式发送给基站, 以使所述基站基于 所述波束预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
15、 根据权利要求 14所述的 UE, 其特征在于, 所述确定所述 UE使用的 波束预编码方式, 具体包括:
根据所述各波束的接收信号强度, 确定所述各波束中接收信号强度最大 的波束作为第一服务波束, 并将所述第一服务波束的接收信号强度与其他波 束的接收信号强度的差值分别与预设的第一门限和预设的第二门限进行比 较, 根据比较结果确定其他波束的使用方式, 获得所述第一波束组合使用结 果, 并用波束预编码方式表示所述第一波束组合使用结果;
其中, 所述第一门限大于所述第二门限。
16、 根据权利要求 15所述的 UE, 其特征在于, 所述将所述第一服务波 束的接收信号强度与其他波束的接收信号强度的差值分别与预设的第一门限 和预设的第二门限进行比较, 根据比较结果确定其他波束的使用方式, 具体 包括:
将第一差值分别与所述第一门限和所述第二门限进行比较, 所述第一差 值是所述第一服务波束的接收信号强度与所述其他波束中的第二波束的接收 信号强度的差值; 如果所述第一差值大于所述第一门限, 确定所述第二波束 可以在所述第一服务波束使用的时频资源上为其他 UE服务,如果所述第一差 值小于所述第二门限, 确定所述第二波束作为第二服务波束为所述 UE服务, 如果所述第一差值大于所述第二门限且小于所述第一门限, 确定所述第二波 束不能在所述第一服务波束使用的时频资源上为其他 UE服务。
17、 根据权利要求 14-16任一项所述的 UE, 其特征在于, 还包括: 相位指定模块, 用于在所述波束组合使用的方式包括波束合作时, 根据 所述至少两个服务波束的接收信号相位, 指定每个服务波束工作的相位, 并 用所述波束预编码方式表示每个服务波束工作的相位。
18、 根据权利要求 17所述的 UE, 其特征在于, 所述根据所述至少两个 服务波束的接收信号相位, 指定每个服务波束工作的相位, 并用所述波束预 编码方式表示每个服务波束工作的相位, 具体包括:
从所述至少两个服务波束中确定一个服务波束作为基准服务波束, 获得 所述基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 并用所述波束预编码方式表示所述基准服务波束的接收信号相位以及所述基 准服务波束的接收信号相位与所述其他服务波束的接收信号相位的差值。
19、 根据权利要求 14-18任一项所述的 UE, 其特征在于, 所述将所述波 束预编码方式发送给基站, 具体包括:
根据所述波束预编码方式在预设的波束预编码表中进行匹配, 获取所述 波束预编码方式对应的索引值, 将所述波束预编码方式对应的索引值发送给 所述基站; 其中, 所述波束预编码表存储有各种波束组合使用结果和索引值 之间的对应关系。
20、 根据权利要求 14-19任一项所述的 UE, 其特征在于, 所述将所述波 束预编码方式发送给基站, 具体包括:
在秩指示 RI子帧之后, 将所述波束预编码方式发送给所述基站; 或者 在 RI子帧之前, 将所述波束预编码方式发送给所述基站。
21、 一种基站, 其特征在于, 包括:
获取模块, 用于获取用户设备 UE使用的波束预编码方式, 所述波束预编 码方式用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在 波束组合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
调度模块, 用于根据所述波束预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
22、 根据权利要求 21所述的基站, 其特征在于, 所述获取用户设备 UE 使用的波束预编码方式, 具体包括:
接收所述 UE发送的所述波束预编码方式对应的索引值,根据所述波束预 编码方式对应的索引值在预设的波束预编码表中进行匹配, 确定所述波束预 编码方式对应的索引值匹配中的波束组合使用结果; 其中, 所述波束预编码 表存储有各种波束组合使用结果和索引值之间的对应关系。
23、 根据权利要求 21或 22所述的基站, 其特征在于, 所述根据所述波 束预编码方式对所述 UE进行调度, 具体包括:
根据所述波束预编码方式指示的所述第一波束组合使用结果, 从各波束 中确定所述 UE的服务波束以及其他波束的使用方式,为所述服务波束分配时 频资源, 通过所述服务波束在所述时频资源上向所述 UE传输数据, 并根据其 他波束的使用方式通过所述其他波束传输数据。
24、 根据权利要求 23所述的基站, 其特征在于, 所述根据其他波束的使 用方式通过所述其他波束传输数据, 具体包括:
在所述其他波束的使用方式为: 不能在所述服务波束使用的时频资源上 向其他 UE传输数据时,禁止通过所述其他波束在所述服务波束使用的时频资 源上向其他 UE传输数据; 以及在所述其他波束的使用方式为: 要在所述服务 波束使用的时频资源上向其他 UE同时传输数据时,通过所述其他波束在所述 服务波束使用的时频资源上同时向其他 UE传输数据。
25、 根据权利要求 23或 24所述的基站, 其特征在于, 所述调度模块还 用于在所述波束组合使用的方式包括波束合作时, 在通过所述服务波束在所 述时频资源上向所述 UE传输数据之前, 根据所述波束预编码方式, 确定每个 服务波束工作的相位, 如果所述服务波束未工作在所述确定的相位上, 对所 述服务波束的相位进行调整, 使所述服务波束工作在所述确定的相位上。
26、 根据权利要求 25所述的基站, 其特征在于, 所述根据所述波束预编 码方式, 确定每个服务波束工作的相位, 具体包括:
根据所述波束预编码方式, 确定基准服务波束的接收信号相位以及所述 基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 将所 述基准服务波束的接收信号相位作为所述基准服务波束工作的相位, 并将所 述基准服务波束的接收信号相位和所述基准服务波束的接收信号相位与所述 其他服务波束的接收信号相位的差值相加, 获得所述其他服务波束工作的相 位。
27、 一种用户设备 UE, 其特征在于, 包括:
处理器, 用于确定所述 UE使用的波束预编码方式, 所述波束预编码方式 用于指示第一波束组合使用结果, 所述第一波束组合使用结果包括在波束组 合使用时由所述 UE确定的各波束的使用方式;
其中, 如果各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的 方式包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如 果各波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述波束复用和所述波束合作中的至少一种;
发射器, 用于将所述波束预编码方式发送给基站, 以使所述基站基于所 述波束预编码方式对所述 UE进行调度;
其中, 所述波束选择是指要求各波束中至少有一个不同于服务波束的波 束不能在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
28、 根据权利要求 27所述的 UE, 其特征在于, 还包括:
功率测量电路, 用于测量所述各波束的接收信号强度;
所述确定所述 UE使用的波束预编码方式, 具体包括: 根据所述各波束的 接收信号强度, 确定所述各波束中接收信号强度最大的波束作为第一服务波 束, 并将所述第一服务波束的接收信号强度与其他波束的接收信号强度的差 值分别与预设的第一门限和预设的第二门限进行比较, 根据比较结果确定其 他波束的使用方式, 获得所述第一波束组合使用结果, 并用波束预编码方式 表示所述第一波束组合使用结果;
其中, 所述第一门限大于所述第二门限。
29、 根据权利要求 28所述的 UE, 其特征在于, 所述将所述第一服务波 束的接收信号强度与其他波束的接收信号强度的差值分别与预设的第一门限 和预设的第二门限进行比较, 根据比较结果确定其他波束的使用方式, 具体 包括:
将第一差值分别与所述第一门限和所述第二门限进行比较, 所述第一差 值是所述第一服务波束的接收信号强度与所述其他波束中的第二波束的接收 信号强度的差值; 如果所述第一差值大于所述第一门限, 确定所述第二波束 可以在所述第一服务波束使用的时频资源上为其他 UE服务,如果所述第一差 值小于所述第二门限, 确定所述第二波束作为第二服务波束为所述 UE服务, 如果所述第一差值大于所述第二门限且小于所述第一门限, 确定所述第二波 束不能在所述第一服务波束使用的时频资源上为其他 UE服务。
30、 根据权利要求 27-29任一项所述的 UE, 其特征在于, 所述处理器还 用于, 在所述波束组合使用的方式包括波束合作时, 根据所述至少两个服务 波束的接收信号相位, 指定每个服务波束工作的相位, 并用所述波束预编码 方式表示每个服务波束工作的相位。
31、 根据权利要求 30所述的 UE, 其特征在于, 所述根据所述至少两个 服务波束的接收信号相位, 指定每个服务波束工作的相位, 并用所述波束预 编码方式表示每个服务波束工作的相位, 具体包括:
从所述至少两个服务波束中确定一个服务波束作为基准服务波束, 获得 所述基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 并用所述波束预编码方式表示所述基准服务波束的接收信号相位以及所述基 准服务波束的接收信号相位与所述其他服务波束的接收信号相位的差值。
32、 根据权利要求 27-31任一项所述的 UE, 其特征在于, 所述处理器还 用于根据所述波束预编码方式在预设的波束预编码表中进行匹配, 获取所述 波束预编码方式对应的索引值;
所述将所述波束预编码方式发送给基站, 具体包括:
将所述波束预编码方式对应的索引值发送给所述基站; 其中, 所述波束 预编码表存储有各种波束组合使用结果和索引值之间的对应关系。
33、 根据权利要求 27-32任一项所述的 UE, 其特征在于, 所述将所述波 束预编码方式发送给基站, 具体包括:
在秩指示 RI子帧之后, 将所述波束预编码方式发送给所述基站; 或者 在 RI子帧之前, 将所述波束预编码方式发送给所述基站。
34、 一种基站, 其特征在于, 包括:
处理器, 用于获取用户设备 UE使用的波束预编码方式, 并根据所述波束 预编码方式对所述 UE进行调度; 其中, 所述波束预编码方式用于指示第一波 束组合使用结果, 所述第一波束组合使用结果包括在波束组合使用时由所述 UE确定的各波束的使用方式;
其中, 各波束的总数为 2, 则波束组合使用的方式包括波束选择、 波束 复用和波束合作中的一种, 如果各波束的总数为 3, 则波束组合使用的方式 包括所述波束选择、 所述波束复用和所述波束合作中的一种或两种, 如果各 波束的总数大于或等于 4, 则波束组合使用的方式包括所述波束选择、 所述 波束复用和所述波束合作中的至少一种;
所述波束选择是指要求各波束中至少有一个不同于服务波束的波束不能 在所述服务波束使用的时频资源上为其他 UE服务;
所述波束复用是指要求各波束中至少有一个不同于服务波束的波束在所 述服务波束使用的时频资源上同时为其他 UE服务;
所述波束合作是指要求各波束中至少有两个使用相同时频资源的波束作 为所述服务波束;
所述服务波束是指各波束中为所述 UE服务的波束。
35、 根据权利要求 34所述的基站, 其特征在于, 还包括:
接收器, 用于接收所述 UE发送的所述波束预编码方式对应的索引值; 所述获取用户设备 UE使用的波束预编码方式, 具体包括:
根据所述接收器接收的所述波束预编码方式对应的索引值在预设的波束 预编码表中进行匹配, 确定所述波束预编码方式对应的索引值匹配中的波束 组合使用结果; 其中, 所述波束预编码表存储有各种波束组合使用结果和索 引值之间的对应关系。
36、 根据权利要求 34或 35所述的基站, 其特征在于, 还包括: 发射器; 所述根据所述波束预编码方式对所述 UE进行调度, 具体包括:
根据所述波束预编码方式指示的所述第一波束组合使用结果, 从各波束 中确定所述 UE的服务波束以及其他波束的使用方式,为所述服务波束分配时 频资源,并控制所述发射器通过所述服务波束在所述时频资源上向所述 UE传 输数据, 以及控制所述发射器根据其他波束的使用方式通过所述其他波束传 输数据;
所述发射器, 用于在所述处理器的控制下, 通过所述服务波束在所述时 频资源上向所述 UE传输数据,并根据所述其他波束的使用方式通过所述其他 波束传输数据。
37、 根据权利要求 36所述的基站, 其特征在于, 所述控制所述发射器根 据其他波束的使用方式通过所述其他波束传输数据, 具体包括:
在所述其他波束的使用方式为: 不能在所述服务波束使用的时频资源上 向其他 UE传输数据时,禁止所述发射器通过所述其他波束在所述服务波束使 用的时频资源上向其他 UE传输数据; 以及在所述其他波束的使用方式为: 要 在所述服务波束使用的时频资源上向其他 UE同时传输数据时,控制所述发射 器通过所述其他波束在所述服务波束使用的时频资源上同时向其他 UE 传输 数据。
38、 根据权利要求 36或 37所述的基站, 其特征在于, 所述处理器还用 于在所述波束组合使用的方式包括波束合作时, 在控制所述发射器通过所述 服务波束在所述时频资源上向所述 UE传输数据之前,根据所述波束预编码方 式, 确定每个服务波束工作的相位, 如果所述服务波束未工作在所述确定的 相位上, 对所述服务波束的相位进行调整, 使所述服务波束工作在所述确定 的相位上。
39、 根据权利要求 38所述的基站, 其特征在于, 所述根据所述波束预编 码方式, 确定每个服务波束工作的相位, 具体包括:
根据所述波束预编码方式, 确定基准服务波束的接收信号相位以及所述 基准服务波束的接收信号相位与其他服务波束的接收信号相位的差值, 将所 述基准服务波束的接收信号相位作为所述基准服务波束工作的相位, 并将所 述基准服务波束的接收信号相位和所述基准服务波束的接收信号相位与所述 其他服务波束的接收信号相位的差值相加, 获得所述其他服务波束工作的相 位。
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CN104937971B (zh) 2019-05-28
US10051485B2 (en) 2018-08-14
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EP3068156A1 (en) 2016-09-14

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