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CN-122001541-A - Communication method, communication device and communication system

CN122001541ACN 122001541 ACN122001541 ACN 122001541ACN-122001541-A

Abstract

A communication method, a communication device and a communication system. The method comprises the steps of obtaining first information and second information, wherein the first information is used for indicating information of a first RSRP of a first port set of a CSI-RS and information of a second RSRP, the second information is used for indicating information of a third RSRP of a second port set of the CSI-RS and information of a fourth RSRP, and the same resources used for transmitting uplink reference signals are configured for a first terminal of a first cell and a second terminal of a second cell according to the first information and the second information. Since the first terminal and the second terminal are configured with the same resource for transmitting the uplink reference signal, the resource utilization rate is improved, and the overhead of the resource for transmitting the uplink reference signal is reduced.

Inventors

  • TIAN KAIYUAN
  • GAO XINYU
  • MING YANG

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (20)

  1. 1. A method of communication, comprising: Acquiring first information and second information, wherein the first information is used for indicating information of a first Reference Signal Receiving Power (RSRP) of a first port set of a channel state information reference signal (CSI-RS) and information of a second RSRP, the information of the first RSRP is information of a RSRP of the first port set determined by a terminal of a first cell according to the CSI-RS transmitted by the first cell, the information of the second RSRP is information of a RSRP of the second cell determined by the terminal of the second cell according to the CSI-RS transmitted by the first cell, the first information is information of a RSRP of the first port set determined by the CSI-RS on a first resource, the first resource is a resource of the CSI-RS transmitted by the first cell and the second cell, the information of a third RSRP is information of a RSRP determined by the terminal of the first cell according to the CSI-RS transmitted by the first cell, the information of the third RSRP is information of the RSRP of the second port set determined by the terminal of the first cell is a resource of the CSI-RS transmitted by the second cell, and the first RSRP is a resource of the RSRP determined by the second port set of the second cell is a resource of the RSRP of the second cell; And according to the first information and the second information, configuring the same resources for transmitting uplink reference signals for the first terminal of the first cell and the second terminal of the second cell.
  2. 2. The method of claim 1, wherein, The first information comprises a first bit bitmap corresponding to a terminal of the first cell and a second bit bitmap corresponding to a terminal of the second cell, wherein the first bit bitmap is used for indicating RSRP of all ports in the first port set, which is determined by the terminal of the first cell according to CSI-RS sent by the first cell, and the second bit bitmap is used for indicating RSRP of all ports in the first port set, which is determined by the terminal of the second cell according to the CSI-RS sent by the first cell, wherein the number of bits of the first bit bitmap and the number of bits of the second bit bitmap are equal to the number of ports in the first port set, and the bits of the first bit bitmap and the bits of the second bit bitmap are in one-to-one correspondence with the ports in the first port set; The second information comprises a third bit bitmap corresponding to the terminal of the first cell and a fourth bit bitmap corresponding to the terminal of the second cell, wherein the third bit bitmap is used for indicating RSRP of each port in the second port set, which is determined by the terminal of the first cell according to the CSI-RS sent by the second cell, and the fourth bit bitmap is used for indicating RSRP of each port in the second port set, which is determined by the terminal of the second cell according to the CSI-RS sent by the second cell, and the number of bits of the third bit bitmap and the number of bits of the fourth bit bitmap are equal to the number of ports in the second port set, and the bits of the third bit bitmap and the bits of the fourth bit bitmap are in one-to-one correspondence with the ports in the second port set.
  3. 3. The method of claim 2, wherein, When the value of a first bit in the first bit map is a first value, the first bit is used for indicating that the RSRP of a first port in the first port set is greater than or equal to a first threshold; And when the value of the first bit in the first bit map is a second value, the first bit is used for indicating that the RSRP of the first ports in the first port set is smaller than the first threshold value.
  4. 4. The method of claim 2, wherein, The value of M bits in the first bit map is a first value, the value of other bits except for the M bits in the first bit map is a second value, and the RSRP of M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of ports except for the M ports in the first port set; Wherein M is a positive integer, and the size of M satisfies that the ratio of the sum of RSRP of the M ports in the first port set to the sum of RSRP of all ports in the first port set is greater than or equal to a second threshold, and the ratio of the largest sum of M-1 RSRP in the RSRP of the M ports in the first port set to the sum of RSRP of all ports in the first port set is less than the second threshold.
  5. 5. The method of claim 2, wherein, The value of N bits in the first bit map is a first value, the value of other bits except the N bits in the first bit map is a second value, and the RSRP of N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of ports except the N ports in the first port set; Wherein N is a positive integer and the size of N is preconfigured.
  6. 6. The method as recited in claim 5, further comprising: Receiving indication information of a terminal from the first cell, wherein the indication information is used for indicating the N ports; And determining the first bit bitmap according to the indication information.
  7. 7. The method according to any one of claim 1 to 6, The first information comprises the sum of RSRP of each port in the first port set, which is determined by the terminal of the first cell according to the CSI-RS sent by the first cell, and the sum of RSRP of each port in the first port set, which is determined by the terminal of the second cell according to the CSI-RS sent by the first cell; The second information includes a sum of RSRP of each port in the second port set determined by the terminal of the first cell according to CSI-RS transmitted by the second cell, and a sum of RSRP of each port in the second port set determined by the terminal of the second cell according to CSI-RS transmitted by the second cell.
  8. 8. A method of communication, comprising: Acquiring third information and fourth information, wherein the third information is used for indicating information of a first Reference Signal Receiving Power (RSRP) of a first port set of a channel state information reference signal (CSI-RS), the information of the first RSRP is information of the RSRP of the first port set determined by a terminal of a first cell according to the CSI-RS transmitted by the first cell, the third information is determined according to the CSI-RS on a first resource, the first resource is a resource of the first cell for transmitting the CSI-RS and a second cell for transmitting zero power (CSI-RS), the fourth information is information of a third RSRP of a second port set for indicating the CSI-RS, the information of the third RSRP is information of the RSRP of the second port set determined by a terminal of the first cell according to the CSI-RS transmitted by the second cell, and the fourth information is determined according to the CSI-RS on a second resource, and the second resource is a resource of the second cell for transmitting the CSI-RS and the CSI-RS; And transmitting the third information and the fourth information.
  9. 9. The method of claim 8, wherein, The third information is used for indicating a first bit bitmap corresponding to a terminal of the first cell, wherein the first bit bitmap is used for indicating RSRP of each port in the first port set, which is determined by the terminal of the first cell according to CSI-RS sent by the first cell, the number of bits of the first bit bitmap is equal to the number of ports in the first port set, and the bits of the first bit bitmap are in one-to-one correspondence with the ports in the first port set; The fourth information is used for indicating a third bit bitmap corresponding to the terminal of the first cell, the third bit bitmap is used for indicating RSRP of each port in the second port set, which is determined by the terminal of the first cell according to the CSI-RS sent by the second cell, wherein the number of bits of the third bit bitmap is equal to the number of ports in the second port set, and the bits of the third bit bitmap are in one-to-one correspondence with the ports in the second port set.
  10. 10. The method of claim 9, wherein, When the value of a first bit in the first bit map is a first value, the first bit is used for indicating that the RSRP of a first port in the first port set is greater than or equal to a first threshold; And when the value of the first bit in the first bit map is a second value, the first bit is used for indicating that the RSRP of the first ports in the first port set is smaller than the first threshold value.
  11. 11. The method of claim 9, wherein, The value of M bits in the first bit map is a first value, the value of other bits except for the M bits in the first bit map is a second value, and the RSRP of M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of ports except for the M ports in the first port set; Wherein M is a positive integer, and the size of M satisfies that the ratio of the sum of RSRP of the M ports in the first port set to the sum of RSRP of all ports in the first port set is greater than or equal to a second threshold, and the ratio of the largest sum of M-1 RSRP in the RSRP of the M ports in the first port set to the sum of RSRP of all ports in the first port set is less than the second threshold.
  12. 12. The method of claim 9, wherein, The value of N bits in the first bit map is a first value, the value of other bits except the N bits in the first bit map is a second value, and the RSRP of N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of ports except the N ports in the first port set; Wherein N is a positive integer and the size of N is preconfigured.
  13. 13. The method of claim 12, wherein the third information comprises indication information indicating the N ports, the indication information determining the first bit map.
  14. 14. The method according to any one of claim 8 to 13, wherein, The third information comprises the sum of RSRP of all ports in the first port set, which is determined by the terminal of the first cell according to the CSI-RS sent by the first cell; and the fourth information comprises the sum of RSRP of each port in the second port set, which is determined by the terminal of the first cell according to the CSI-RS sent by the second cell.
  15. 15. A communication device comprising means for performing the method of any one of claims 1 to 7, or the method of any one of claims 8 to 14.
  16. 16. A communication device comprising a processor and interface circuitry, the processor being configured to communicate with other devices via the interface circuitry to implement the method of any one of claims 1 to 7 or to implement the method of any one of claims 8 to 14.
  17. 17. A computer program product, characterized in that it comprises a computer program or instructions which, when executed, implements the method of any one of claims 1 to 7 or implements the method of any one of claims 8 to 14.
  18. 18. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program or instructions which, when executed, implement the method of any one of claims 1 to 7 or the method of any one of claims 8 to 14.
  19. 19. A chip comprising a processor for implementing the method of any one of claims 1 to 7 or for implementing the method of any one of claims 8 to 14.
  20. 20. A communication system comprising an access network device for implementing the method of any of claims 1 to 7 and a terminal for implementing the method of any of claims 8 to 14.

Description

Communication method, communication device and communication system Technical Field The present application relates to the field of communications technologies, and in particular, to a communications method, a communications device, and a communications system. Background The Sounding REFERENCE SIGNAL (SRS) is an uplink reference signal sent by the terminal to the access network device, and the access network device may determine, according to the received SRS, information of an uplink channel from the terminal to the access network device. The SRS is a sequence signal, is designed based on a Zadoff-Chu sequence, and has the characteristic of the Zadoff-Chu sequence. And if the uplink and downlink channels have channel reciprocity, the access network device can also determine the information of the downlink channel from the access network device to the terminal through the uplink channel measurement based on the SRS according to the channel reciprocity. After determining the information of the downlink channel from the access network device to the terminal, the access network device can perform resource scheduling or precoding processing on the downlink data transmission of the terminal according to the information of the downlink channel. Since the number of terminals transmitting SRS is relatively large, mutually orthogonal SRS resources may be allocated to different terminals in order to reduce mutual interference when different terminals transmit SRS as much as possible, thereby improving channel estimation performance. Wherein two SRS resources are mutually orthogonal means that at least one of time domain, frequency domain or code domain of the two SRS resources is different, i.e. the mutually orthogonal SRS resources satisfy at least one of time division, frequency division or code division. However, since the number of terminals is very large, if orthogonal SRS resources are always allocated to different terminals, a resource overhead is very large. How to reduce the overhead of SRS resources is to be solved. Disclosure of Invention The embodiment of the application provides a communication method, a communication device and a communication system, which are used for reducing the expenditure of resources for transmitting uplink reference signals. In a first aspect, the method may be applied to a network side, for example, an access network device on the network side, a module (e.g., a circuit, a chip system, or the like) in the access network device, or a logic node, a logic module, or software capable of implementing all or part of the functions of the access network device. The method comprises the steps of obtaining first information and second information, wherein the first information is used for indicating information of first reference signal receiving power (REFERENCE SIGNAL RECEIVING power, RSRP) of a first port set of channel state information reference signals (channel status information REFERENCE SIGNAL, CSI-RS) and information of second RSRP, the information of the first RSRP is information of RSRP of the first port set determined by a terminal of a first cell according to the CSI-RS transmitted by the first cell, the information of the second RSRP is information of RSRP of the second cell determined by the terminal of the first cell according to the CSI-RS transmitted by the first cell, the first information is information of RSRP of the first port set determined by the first cell according to the CSI-RS on a first resource, the first resource is a resource of CSI-RS and the second cell transmitting zero power-RS, the second information of the second port set is information of the second cell and information of RSRP determined by the terminal of the fourth cell according to the second channel state information, the first resource is a resource of CSI-RS on the first cell transmitting zero power-RS and the second resource is a resource of the second RSRP determined by the second cell-RS on the second cell, and configuring the same resource for transmitting the uplink reference signal for the first terminal of the first cell and the second terminal of the second cell. Based on the above scheme, since the first terminal and the second terminal are configured with the same resources for transmitting the uplink reference signal, the resource utilization rate is improved, and the overhead of the resources for transmitting the uplink reference signal is reduced. In one possible implementation method, the first information includes a first bit bitmap corresponding to a terminal of the first cell and a second bit bitmap corresponding to a terminal of the second cell, where the first bit bitmap is used to indicate RSRP of each port in the first port set determined by the terminal of the first cell according to CSI-RS transmitted by the first cell, the second bit bitmap is used to indicate RSRP of each port in the first port set determined by the terminal of the second cell according to CSI-RS tr