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EP-4738748-A1 - DETERMINATION METHOD AND APPARATUS, COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND STORAGE MEDIUM

EP4738748A1EP 4738748 A1EP4738748 A1EP 4738748A1EP-4738748-A1

Abstract

The present disclosure provides a determination method and apparatus, a device, and a storage medium. The method comprises: when a transmission scheme is that a physical uplink shared channel (PUSCH) performs multi-transmission reception point (MTRP) transmission in an uplink simultaneous transmission across multi-antenna panels (STxMP) configuration scenario, on the basis of at least one of a transmission mode, a maximum number of transmission layers, and a maximum number of phase tracking reference signal (PTRS) ports, determining a bit width and/or an indication method of a first DCI indicator field, wherein the DCI indicator field is used for indicating an association relationship between ports. The embodiments of the present disclosure provide a method for "how to determine a bit width and/or an indication method of a DCI indicator field", so that when a terminal and a network device perform MTRP transmission in an uplink STxMP configuration scenario, a bit width and/or an indication method of a DCI indicator field may be determined, thereby implementing successful transmission and parsing of the DCI indicator field, and ensuring that an association relationship between ports may be successfully indicated.

Inventors

  • GAO, XUEYUAN

Assignees

  • Beijing Xiaomi Mobile Software Co., Ltd.

Dates

Publication Date
20260506
Application Date
20230629

Claims (20)

  1. A determination method, comprising: determining a bit width and/or an indication manner of a downlink control information (DCI) indication field based on at least one of a transmission mode, a maximum number of transmission layers or a maximum number of phase tracking reference signal (PTRS) ports in a case where a transmission scheme is performing, by a physical uplink shared channel (PUSCH), a multi-transmission reception point (MTRP) transmission in an uplink simultaneous transmission across multiple panels (STxMP) configuration scenario, wherein the DCI indication field indicates an association relationship between ports.
  2. The method according to claim 1, wherein the MTRP transmission in the STxMP configuration scenario comprises simultaneously performing, by two antenna panels of a terminal, PUSCH transmissions to two different transmission reception point (TRP) directions, wherein the PUSCH transmissions in different TRP directions are associated with different sets of sounding reference signal (SRS) resources and different transmission configuration indication states (TCI states).
  3. The method according to claim 1, wherein the transmission mode comprises a space division multiplexing (SDM) transmission or a single frequency network (SFN) transmission.
  4. The method according to claim 1, wherein the association relationship between the ports comprises an association relationship between a PTRS port and a demodulation reference signal (DMRS) port.
  5. The method according to any one of claims 1 to 4, further comprising: determining an execution of the MTRP transmission based on an SRS resource set indicator (SRI) field in a DCI signaling.
  6. The method according to any one of claims 1 to 5, further comprising: determining the transmission mode of the MTRP transmission to be an SDM transmission or an SFN transmission based on a radio resource control (RRC) signaling.
  7. The method according to any one of claims 1 to 6, wherein the maximum number of transmission layers is the maximum number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state; and the maximum number of PTRS ports is the maximum number of PTRS ports sent by a terminal, wherein the number of PTRS ports corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states from the terminal is identical.
  8. The method described in any one of claims 1 to 7, wherein in a case where the transmission mode is an SDM transmission, the maximum number of PTRS ports is 2, the actual number of PTRS ports sent by a terminal is 2, each SRS resource set, each TRP, each antenna panel, or each TCI state corresponds to one PTRS port, and different SRS resource sets, different TRPs, different antenna panels, or different TCI states correspond to different PTRS ports for transmissions.
  9. The method according to any one of claims 1 to 8, wherein determining the bit width and/or the indication manner of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, or the maximum number of PTRS ports comprises: in a case where the transmission mode is an SDM transmission and the maximum number of transmission layers configured for the SDM transmission is 1, an actual number of PTRS ports sent by a terminal being 2, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 0 bits; the bit width of the DCI indication field being 2 bits, a most significant bit (MSB) of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario; a least significant bit (LSB) of the DCI indication field indicating a DMRS port associated with a PTRS port 1 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 1 bit, the DCI indication field indicating an DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario.
  10. The method according to any one of claims 1 to 9, wherein determining the bit width and/or the indication manner of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, or the maximum number of PTRS ports comprises: in a case where the transmission mode is an SDM transmission and the maximum number of transmission layers configured for the SDM transmission is 2, an actual number of PTRS ports sent by a terminal being 2, determining an actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state; in a case where the actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 2, determining the bit width of the DCI indication field to be 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 1 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; in a case where the actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 1, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 0 bits; the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 1 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario; in a case where the actual number of transmission layers corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state is 1, and an actual number of transmission layers corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state is 2; or in a case where an actual number of transmission layers corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state is 2, and an actual number of transmission layers corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state is 1, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to the first SRS resource set, the first TRP, the first antenna panel, or the first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 1 corresponding to the second SRS resource set, the second TRP, the second antenna panel, or the second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set with an actual number of transmission layers of 2, a TRP with an actual number of transmission layers of 2, an antenna panel with an actual number of transmission layers of 2, or a TCI state with an actual number of transmission layers of 2.
  11. The method according to any one of claims 1 to 10, wherein in a case where the transmission mode is an SFN transmission, a numeric count of PTRS ports corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is identical, and the same PTRS port corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is associated with the same DMRS port or different DMRS ports.
  12. The method according to any one of claims 1 to 11, wherein determining the bit width and/or the indication manner of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, or the maximum number of PTRS ports comprises: in a case where the transmission mode is an SFN transmission, the maximum number of transmission layers configured for the SFN transmission is 1, and the maximum number of PTRS ports configured for the SFN transmission is 1, an actual number of PTRS ports sent by a terminal being 1, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 0 bits; the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario.
  13. The method according to any one of claims 1 to 12, wherein determining the bit width and/or the indication manner of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, or the maximum number of PTRS ports comprises: in a case where the transmission mode is an SFN transmission, the maximum number of transmission layers configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 1, an actual number of PTRS ports sent by a terminal being 1, determining an actual number of transmission layers for each SRS resource set, each TRP, each antenna panel, or each TCI state; in a case where the actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 1, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 0 bits; the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario; in a case where the actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 2, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario.
  14. The method according to claim 13, wherein in a case where the transmission mode is the SFN transmission, the maximum number of transmission layers configured for the SFN transmission is 2, the maximum number of PTRS ports configured for the SFN transmission is 1, and the actual number of PTRS ports sent by the terminal is 1, and in a case where the actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 2, the same PTRS port corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is associated with different DMRS ports, or the same PTRS port corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is associated with the same DMRS port.
  15. The method according to any one of claims 1 to 14, wherein determining the bit width and/or the indication manner of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, or the maximum number of PTRS ports comprises: in a case where the transmission mode is an SFN transmission, the maximum number of transmission layers configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining an actual number of PTRS ports sent by a terminal; in a case where the actual number of PTRS ports sent by the terminal is 1, determining an actual number of transmission layers for each SRS resource set, each TRP, each antenna panel, or each TCI state; in a case where the actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 1, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 0 bits; the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario; in a case where an actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 2, and the same PTRS port corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is associated with the same DMRS port, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; in a case where the actual number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state is 2, and the same PTRS port corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is associated with different DMRS ports, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating another DMRS port associated with the PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario.
  16. The method according to any one of claims 1 to 15, wherein determining the bit width and/or the indication manner of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, or the maximum number of PTRS ports comprises: in a case where the transmission mode is an SFN transmission, the maximum number of transmission layers configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining an actual number of PTRS ports sent by a terminal; in a case where the actual number of PTRS ports sent by the terminal is 2, and the same PTRS port corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is associated with the same DMRS port, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 1 bit, the DCI indication field indicating a DMRS port associated with a PTRS port corresponding to an SRS resource set, a TRP, an antenna panel, or a TCI state in the STxMP configuration scenario; the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 1 corresponding to the first SRS resource set, the first TRP, the first antenna panel, or the first TCI state in the STxMP configuration scenario; the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 4 bits, first two bits of the DCI indication field indicating DMRS ports associated with two PTRS ports corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario; last two bits of the DCI indication field indicating DMRS ports associated with two PTRS ports corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario.
  17. The method according to claim 16, wherein determining the bit width and/or the indication manner of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, or the maximum number of PTRS ports comprises: in a case where the transmission mode is an SFN transmission, the maximum number of transmission layers configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining an actual number of PTRS ports sent by a terminal; in a case where the actual number of PTRS ports sent by the terminal is 2, and the same PTRS port corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states is associated with different DMRS ports, determining the bit width and/or the indication manner of the DCI indication field being any one of: the bit width of the DCI indication field being 2 bits, an MSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario, an LSB of the DCI indication field indicating a DMRS port associated with a PTRS port 0 corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario; or the bit width of the DCI indication field being 4 bits, first two bits of the DCI indication field indicating DMRS ports associated with two PTRS ports corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state in the STxMP configuration scenario; last two bits of the DCI indication field indicating DMRS ports associated with two PTRS ports corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state in the STxMP configuration scenario.
  18. The method according to claim 15, 16, or 17, wherein determining the actual number of PTRS ports sent by the terminal comprises: determining a target SRS resource set, a target TRP, a target antenna panel, or a target TCI state from two SRS resource sets, two TRPs, two antenna panels, or two TCI states based on at least one of a predefined rule, a network configuration, or a network indication; determining the actual number of PTRS ports for the target SRS resource set, the target TRP, the target antenna panel, or the target TCI state as the actual number of PTRS ports sent by the terminal.
  19. The method according to claim 18, further comprising: in a case where the SFN transmission is performed based on a codebook, determining the actual number of PTRS ports for the target SRS resource set, the target TRP, the target antenna panel, or the target TCI state based on a transmitted precoding matrix indicator (TPMI) configured by a network device for the target SRS resource set, the target TRP, the target antenna panel, or the target TCI state; in a case where the SFN transmission is performed based on a non-codebook, determining the actual number of PTRS ports for the target SRS resource set, the target TRP, the target antenna panel, or the target TCI state based on a PTRS index indicated by an SRI field corresponding to the target SRS resource set, the target TRP, the target antenna panel, or the target TCI state in a DCI signaling.
  20. A determination method, performed by a communication system, the communication system comprising a terminal and a network device, the method comprising at least one of: determining, by the network device, a bit width and/or an indication manner of a first downlink control information (DCI) indication field based on at least one of a transmission mode, a maximum number of transmission layers or a maximum number of phase tracking reference signal (PTRS) ports in a case where a transmission scheme is performing, by a physical uplink shared channel (PUSCH), a multi-transmission reception point (MTRP) transmission in a STxMP configuration scenario, wherein the DCI indication field indicates an association relationship between ports; determining, by the terminal, a bit width and/or an indication manner of a first DCI indication field based on at least one of a transmission mode, a maximum number of transmission layers, or a maximum number of PTRS ports in a case where a transmission scheme is performing, by a PUSCH, an MTRP transmission in an uplink STxMP configuration scenario, wherein the DCI indication field indicates an association relationship between ports.

Description

TECHNICAL FIELD The present disclosure relates to the field of communication technologies, and in particular relates to a determination method, an apparatus, a communication device, a communication system, and a storage medium. BACKGROUND In a communication system, a terminal usually perform a multi-transmission reception point (MTRP) transmission. During the MTRP transmission, a network device usually needs to indicate the association relationship between a demodulation reference signal (DMRS) port and a phase tracking reference signal (PTRS) port to the terminal via an indication field in a downlink control information (DCI) signaling. Among them, how to determine the bit width of the indication field in the MTRP transmission, and how to determine an indication manner of the indication field when the indication field indicates the association relationship between the DMRS port and the PTRS port, are technical problems that urgently need to be solved. SUMMARY The present disclosure provides a determination method, an apparatus, a communication device, a communication system, and a storage medium. According to a first aspect of embodiments of the present disclosure, a determination method is provided, which includes: determining a bit width and/or an indication manner of a first DCI indication field based on at least one of a transmission mode, a maximum number of transmission layers, or a maximum number of PTRS ports in a case where a transmission scheme is performing, by a physical uplink shared channel (PUSCH), an MTRP transmission in an uplink simultaneous transmission across multiple panels (STxMP) configuration scenario, where the DCI indication field indicates an association relationship between ports. According to a second aspect of embodiments of the present disclosure, a determination method is provided, which includes: determining, by a network device, a bit width and/or an indication manner of a first DCI indication field based on at least one of a transmission mode, a maximum number of transmission layers, or a maximum number of PTRS ports in a case where a transmission scheme is performing, by a PUSCH, an MTRP transmission in an uplink STxMP configuration scenario, where the DCI indication field indicates an association relationship between ports; and determining, by a terminal, a bit width and/or an indication manner of a first DCI indication field based on at least one of a transmission mode, a maximum number of transmission layers, or a maximum number of PTRS ports in a case where a transmission scheme is performing, by a PUSCH, an MTRP transmission in an uplink STxMP configuration scenario, where the DCI indication field indicates an association relationship between ports. According to a third aspect of embodiments of the present disclosure, an apparatus is provided, which includes: a determination module configured to determine a bit width and/or an indication manner of a first DCI indication field based on at least one of a transmission mode, a maximum number of transmission layers, or a maximum number of PTRS ports in a case where a transmission scheme is performing, by a PUSCH, an MTRP transmission in an uplink STxMP configuration scenario, where the DCI indication field indicates an association relationship between ports. According to a fourth aspect of embodiments of the present disclosure, a communication device is provided, which includes one or more processors, where the one or more processors are configured to invoke instructions to cause the communication device to perform the determination method according to the first aspect. According to a fifth aspect of embodiments of the present disclosure, a communication system is provided, which includes a terminal configured to implement the determination method according to the first aspect, and a network device configured to implement the determination method according to the first aspect. According to a sixth aspect of embodiments of the present disclosure, a storage medium is provided, which has stored therein instructions that, when executed on a communication device, cause the communication device to perform the determination method according to the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS These and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following descriptions of the embodiments made with reference to the drawings, in which: FIG. 1 is a schematic diagram of the architecture of some communication systems provided in an embodiment of the present disclosure;FIG. 2A is a schematic diagram of the interaction flow of a determination method provided in an embodiment of the present disclosure;FIGS. 3A to 3B are schematic flowcharts of a determination method provided in yet another embodiment of the present disclosure;FIGS. 4A to 4B are schematic flowcharts of a determination method provided in yet another embodiment of the present disclosure;FIG. 5 is a