WO2019029269A1 - 信息指示方法及相关设备 - Google Patents
信息指示方法及相关设备 Download PDFInfo
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- WO2019029269A1 WO2019029269A1 PCT/CN2018/091693 CN2018091693W WO2019029269A1 WO 2019029269 A1 WO2019029269 A1 WO 2019029269A1 CN 2018091693 W CN2018091693 W CN 2018091693W WO 2019029269 A1 WO2019029269 A1 WO 2019029269A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0628—Diversity capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/0082—Timing of allocation at predetermined intervals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Definitions
- the embodiment may cause the terminal device to receive the second channel according to the second indication value, and the terminal device receives the first channel according to the first information.
- the quasi-co-site hypothesis QCL information can also be called the Quasi-Co-Location (QCL).
- QCL Quasi-Co-Location
- the analog domain receives the beamforming with the least flexibility (the terminal device can only receive one or a group of receiving beams at a receiving time), and the digital domain receives the beamforming flexibility best (a receiving time terminal device) Multiple or multiple sets of receive beamlets can be employed.
- the first information may be carried in the radio resource control RRC signaling and/or the medium access control MAC signaling, where the second information may be carried in the physical layer signaling, where the first channel may be The physical downlink control channel (PDCCH), and the second channel may be a physical downlink shared channel (PDSCH). That is, the first information of the physical downlink control channel may be sent to the terminal device by using RRC signaling and/or layer 2 signaling, where the first information may include a beam indication field of the first channel, and a second information of the PDSCH.
- the downlink control information may be sent to the terminal device by using physical layer signaling, such as Downlink Control Information (DCI), and the downlink control information includes a beam indication field of the second channel to indicate the second information.
- DCI Downlink Control Information
- the first information or the second information may include beam indication information, and the terminal device may obtain the received beam information of the first channel or the second channel based on the beam indication information, thereby saving waste of the terminal device scanning the receiving beam. Time, and then achieve the effect of power saving.
- the second information may be a first indication value, where the first indication value is indication information of a time domain resource location of the second channel; or the first indication value is a frequency domain of the second channel
- FIG. 3 is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention.
- the wireless communication system includes a network device and a terminal device.
- FIG. 4 is a schematic flowchart diagram of an information indication method according to an embodiment of the present invention. The information indication method may be performed based on the wireless communication system shown in FIG. 3. As shown in FIG. 4, the information indicating method may include the following steps:
- the terminal device receives the second channel according to the second information, and the second information is a second indication value.
- the receiving beam of the terminal device receiving the DMRS is the same as one of the plurality of CSI-RS measurement-based transmitting and receiving beam pairs reported by the terminal device.
- the QCL information may include a beam group index number of the second reference signal reported by the terminal device, a resource index number of the second reference signal, a port number of the second reference signal, and the At least one of the port group numbers of the two reference signals, the second reference signal corresponding to one of the plurality of CSI-RS measurement-based transmit and receive beam pairs previously reported by the terminal device.
- the beam group index number of the second reference signal reported by the terminal device is equivalent to a resource set index number of the second reference signal reported by the terminal device.
- the resource index number of the second reference signal reported by the terminal device may be a relative index number of the plurality of resource index number sets reported by the UE. For example, if the terminal device reports the resource index numbers of the four second reference signals, the resource index number of the second reference signal reported by the terminal device is any one of ⁇ 0, 1, 2, 3 ⁇ .
- the first channel may be a physical downlink control channel
- the second channel may be a physical downlink shared channel
- the relative resource index number 0 corresponds to the resource index number 1 of the second reference signal reported by the terminal device
- the relative resource index number 1 corresponds to the resource index number 5 of the second reference signal reported by the terminal device
- the relative resource The index number 2 corresponds to the resource index number 7 of the second reference signal reported by the terminal device
- the relative resource index number 3 corresponds to the resource index number 9 of the second reference signal reported by the terminal device.
- the embodiment of the present invention can determine the receive beams of the first channel and the second channel by using the first information and the second information, or the first information, thereby avoiding power consumption caused by searching for the receive beam for a long time.
- the receiving unit 501 receives the time unit of the first channel and the time unit of receiving the second channel, that is, when the first channel and the second channel are frequency division multiplexed, the receiving unit may receive the same receiving indication information.
- the first channel and the second channel, the receiving indication information may be determined according to the first information, and the second information may be reused as an indication of other information, for example, the second information may be reused as other additional indications required for frequency division multiplexing Information, avoiding the allocation of new extra information, such as extra bits in the DCI, to indicate this additional information, helps to save on signaling overhead.
- a terminal device provided by an embodiment of the present invention may be implemented by using a general-purpose computer.
- the program code for the functions of the processor 110, the input port 140 and the output port 150 is stored in a memory, and the general purpose processor implements the functions of the processor 110, the input port 140 and the output port 150 by executing code in the memory.
- the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
- the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
- the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
- the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
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Abstract
Description
信息指示值Information Indicator | Message |
[00] | PDSCH RBG大小为2 |
[01] | PDSCH RBG大小为4 |
[10] | PDSCH RBG大小为8 |
[11] | PDSCH RBG大小为16 |
Claims (36)
- 一种信息指示方法,其特征在于,包括:终端设备接收第一信息,所述第一信息为用于指示所述终端设备在第一时间单元接收第一信道的信息;所述终端设备接收第二信息,所述第二信息为用于指示所述终端设备在第二时间单元接收第二信道的信息;所述终端设备根据所述第一信息接收所述第一信道;当所述第一时间单元等于所述第二时间单元时,所述终端设备根据所述第一信息接收所述第二信道,所述第二信息为第一指示值;当所述第一时间单元不等于所述第二时间单元时,所述终端设备根据所述第二信息接收所述第二信道,所述第二信息为第二指示值。
- 根据权利要求1所述的方法,其特征在于,所述第一信道为物理下行控制信道,所述第二信道为物理下行共享信道。
- 根据权利要求1或2所述的方法,其特征在于,所述第一指示值为所述第二信道的时域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源位置的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源粒度的指示信息。
- 根据权利要求1至3任一项所述的方法,其特征在于,所述第二指示值包括第一参考信号与第二参考信号之间的准共站假设QCL信息;所述第一信息包括所述第一参考信号与所述第二参考信号之间的准共站假设QCL信息;其中,所述第一参考信号用于解调所述第一信道或所述第二信道,所述第二参考信号为与所述第一参考信号不同的参考信号。
- 根据权利要求4所述的方法,其特征在于,所述准共站假设信息包括所述终端设备上报的所述第二参考信号的波束组索引号、所述第二参考信号的资源索引号、所述第二参考信号的端口号以及所述第二参考信号的端口组号中的至少一个。
- 根据权利要求1至5任一项所述的方法,其特征在于,在所述终端设备接收所述第一信息和/或所述第二信息之前,所述方法还包括:所述终端设备上报波束赋形能力或波束赋形类型给网络设备。
- 根据权利要求1至6任一项所述的方法,其特征在于,所述第一信息携带在无线资源控制RRC信令和/或媒体接入控制MAC信令中;所述第二信息携带在物理层信令中。
- 根据权利要求2至6任一项所述的方法,其特征在于,当所述第一时间单元等于所述第二时间单元时,所述终端设备根据所述第一信息接收所述第二信道,包括:所述终端设备根据调度所述第二信道的第一信道对应的第一信息接收所述第二信道。
- 根据权利要求1至8任一项所述的方法,其特征在于,所述第一时间单元和所述第二时间单元包括至少一个OFDM符号、至少一个时隙或至少一个子帧。
- 一种信息指示方法,其特征在于,包括:网络设备发送第一信息,所述第一信息为用于指示终端设备在第一时间单元接收第一信道的信息;所述网络设备发送第二信息,所述第二信息为用于指示所述终端设备在第二时间单元接收第二信道的信息;其中,所述第一时间单元等于所述第二时间单元时,所述第一信息还用于所述终端设备接收所述第二信道,所述第二信息为第一指示值;所述第一时间单元不等于所述第二时间单元时,所述第二信息用于所述终端设备接收所述第二信道,所述第二信息为第二指示值。
- 根据权利要求10所述的方法,其特征在于,所述第一信道为物理下行控制信道,所述第二信道为物理下行共享信道。
- 根据权利要求10或11所述的方法,其特征在于,所述第一指示值为所述第二信道的时域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源位置的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源粒度的指示信息。
- 根据权利要求10至12任一项所述的方法,其特征在于,所述第二指示值包括第一参考信号与第二参考信号之间的准共站假设QCL信息,所述第一参考信号用于解调所述第一信道或所述第二信道,所述第二参考信号为与所述第一参考信号不同的参考信号;所述第一信息包括第一参考信号与第二参考信号之间的准共站假设QCL信息,所述第一参考信号用于解调所述第一信道或所述第二信道,所述第二参考信号为与所述第一参考信号不同的参考信号。
- 根据权利要求13所述的方法,其特征在于,所述准共站假设信息包括终端设备上报的所述第二参考信号的波束组索引号、所述第二参考信号的资源索引号、所述第二参考信号的端口号以及所述第二参考信号的端口组号中的至少一个。
- 根据权利要求10至14任一项所述的方法,其特征在于,所述方法还包括:所述网络设备接收所述终端设备上报的波束赋形能力或波束赋形类型;所述网络设备根据所述波束赋形能力或所述波束赋形类型确定所述第一信息和/或所述第二信息。
- 根据权利要求10至15任一项所述的方法,其特征在于,所述第一信息携带在无线资源控制RRC信令和/或媒体接入控制MAC信令中;所述第二信息携带在物理层信令中。
- 根据权利要求11至16任一项所述的方法,其特征在于,当所述第一时间单元等于所述第二时间单元时,所述第一信息还用于所述终端设备在所述第二时间单元接收所述第二信道,具体为:调度所述第二信道的第一信道对应的第一信息用于所述终端设备在所述第二时间单元接收所述第二信道。
- 根据权利要求10至17任一项所述的方法,其特征在于,所述第一时间单元和所述第二时间单元包括至少一个OFDM符号、至少一个时隙或至少一个子帧。
- 一种终端设备,其特征在于,包括:接收单元,用于接收第一信息,所述第一信息为用于指示所述终端设备在第一时间单元接收第一信道的信息;所述接收单元,还用于接收第二信息,所述第二信息为用于指示所述终端设备在第二时间单元接收第二信道的信息;所述接收单元,还用于根据所述第一信息接收所述第一信道;当所述第一时间单元等于所述第二时间单元时,所述接收单元用于根据所述第一信息接收所述第二信道,所述第二信息为第一指示值;当所述第一时间单元不等于所述第二时间单元时,所述接收单元用于根据所述第二信息接收所述第二信道,所述第二信息为第二指示值。
- 根据权利要求19所述的终端设备,其特征在于,所述第一信道为物理下行控制信道,所述第二信道为物理下行共享信道。
- 根据权利要求19或20所述的终端设备,其特征在于,所述第一指示值为所述第二信道的时域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源位置的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源粒度的指示信息。
- 根据权利要求19至21任一项所述的终端设备,其特征在于,所述第二指示值包括第一参考信号与第二参考信号之间的准共站假设QCL信息;所述第一信息包括所述第一参考信号与所述第二参考信号之间的准共站假设QCL信息;其中,所述第一参考信号用于解调所述第一信道或所述第二信道,所述第二参考信号为与所述第一参考信号不同的参考信号。
- 根据权利要求22所述的终端设备,其特征在于,所述准共站假设信息包括所述终端设备上报的所述第二参考信号的波束组索引号、所述第二参考信号的资源索引号、所述第二参考信号的端口号以及所述第二参考信号的端口组号中的至少一个。
- 根据权利要求19至23任一项所述的终端设备,其特征在于,所述终端设备还包括:发送单元,用于在所述终端设备接收所述第一信息和/或所述第二信息之前,上报波束赋形能力或波束赋形类型给网络设备。
- 根据权利要求19至24任一项所述的终端设备,其特征在于,所述第一信息携带在无线资源控制RRC信令和/或媒体接入控制MAC信令中;所述第二信息携带在物理层信 令中。
- 根据权利要求20至25任一项所述的终端设备,其特征在于,当所述第一时间单元等于所述第二时间单元时,所述接收单元根据所述第一信息接收所述第二信道,具体为所述接收单元根据调度第二信道的第一信道对应的第一信息接收所述第二信道。
- 根据权利要求19至26任一项所述的终端设备,其特征在于,所述第一时间单元和所述第二时间单元包括至少一个OFDM符号、至少一个时隙或至少一个子帧。
- 一种网络设备,其特征在于,包括:发送单元,用于发送第一信息,所述第一信息为用于指示终端设备在第一时间单元接收第一信道的信息;所述发送单元,还用于发送第二信息,所述第二信息为用于指示所述终端设备在第二时间单元接收第二信道的信息;其中,所述第一时间单元等于所述第二时间单元时,所述第一信息还用于所述终端设备接收所述第二信道,所述第二信息为第一指示值;所述第一时间单元不等于所述第二时间单元时,所述第二信息用于所述终端设备接收所述第二信道,所述第二信息为第二指示值。
- 根据权利要求28所述的网络设备,其特征在于,所述第一信道为物理下行控制信道,所述第二信道为物理下行共享信道。
- 根据权利要求28或29所述的网络设备,其特征在于,所述第一指示值为所述第二信道的时域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源位置的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源位置的指示信息;或,所述第一指示值为所述第二信道的频域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域资源粒度的指示信息;或,所述第一指示值为所述第二信道的时域和频域资源粒度的指示信息。
- 根据权利要求28至30任一项所述的网络设备,其特征在于,所述第二指示值包括第一参考信号与第二参考信号之间的准共站假设QCL信息,所述第一参考信号用于解调所述第一信道或所述第二信道,所述第二参考信号为与所述第一参考信号不同的参考信号;所述第一信息包括第一参考信号与第二参考信号之间的准共站假设QCL信息,所述第一参考信号用于解调所述第一信道或所述第二信道,所述第二参考信号为与所述第一参考 信号不同的参考信号。
- 根据权利要求31所述的网络设备,其特征在于,所述准共站假设信息包括终端设备上报的所述第二参考信号的波束组索引号、所述第二参考信号的资源索引号、所述第二参考信号的端口号以及所述第二参考信号的端口组号中的至少一个。
- 根据权利要求28至32任一项所述的网络设备,其特征在于,所述网络设备还包括:接收单元,用于接收所述终端设备上报的波束赋形能力或波束赋形类型;处理单元,用于根据所述波束赋形能力或所述波束赋形类型确定所述第一信息和/或所述第二信息。
- 根据权利要求28至33任一项所述的网络设备,其特征在于,所述第一信息携带在无线资源控制RRC信令和/或媒体接入控制MAC信令中;所述第二信息携带在物理层信令中。
- 根据权利要求29至34任一项所述的网络设备,其特征在于,当所述第一时间单元等于所述第二时间单元时,所述第一信息用于所述终端设备在所述第二时间单元接收所述第二信道,具体为:调度所述第二信道的第一信道对应的第一信息用于所述终端设备在所述第二时间单元接收所述第二信道。
- 根据权利要求28至35任一项所述的网络设备,其特征在于,所述第一时间单元和所述第二时间单元包括至少一个OFDM符号、至少一个时隙或至少一个子帧。
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