Search

EP-4738965-A1 - COMMUNICATION METHOD AND RELATED APPARATUS

EP4738965A1EP 4738965 A1EP4738965 A1EP 4738965A1EP-4738965-A1

Abstract

The present application relates to the technical field of communications. Disclosed are a communication method and a related apparatus. The method comprises: a terminal device receiving downlink control information (DCI) from a network device, wherein the DCI can be used for simultaneously scheduling data transmission of N cells, N being an integer greater than 1; and the terminal device sending data according to the DCI. The method provided in the present application further enhances the design of DCI, facilitates an improvement in the data transmission efficiency, and has high applicability.

Inventors

  • ZHOU, Huan

Assignees

  • Beijing Unisoc Communications Technology Co., Ltd

Dates

Publication Date
20260506
Application Date
20240628

Claims (20)

  1. A communication method, characterized in that the method comprises: receiving downlink control information, DCI, from a network device, the DCI for simultaneous schedule of data transmission of N cells, N being an integer greater than 1; and sending data according to the DCI.
  2. The method according to claim 1, characterized in that the DCI includes a frequency domain resource allocation, FDRA, field, and the FDRA field includes N FDRA subfields, wherein one FDRA subfield indicates a resource in frequency domain corresponding to a cell, wherein the one FDRA subfield includes (X + Y) bits, the X bits indicating allocated interlaced resources, and the Y bits being determined based on a number of resource block, RB, sets included in an activated uplink bandwidth part, BWP, wherein the N cells include a first cell, wherein the values of the X bits in the FDRA subfield corresponding to the first cell being all 1 indicates that the first cell is not scheduled; or the values of the X bits in the FDRA subfield corresponding to the first cell being all 0 indicates that the first cell is not scheduled.
  3. The method according to claim 1, characterized in that the DCI includes a frequency domain resource allocation, FDRA, field, and the FDRA field includes N FDRA subfields, wherein one FDRA subfield indicates a resource in frequency domain corresponding to a cell, wherein the one FDRA subfield includes (X + Y) bits, the X bits indicating allocated interlaced resources, and the Y bits being determined based on a number of resource block, RB, sets included in an activated uplink bandwidth part, BWP, wherein the N cells include a first cell, wherein the values of the (X + Y) bits in the FDRA subfield corresponding to the first cell being all 1 indicates that the first cell is not scheduled; or the values of the (X + Y) bits in the FDRA subfield corresponding to the first cell being all 0 indicates that the first cell is not scheduled.
  4. The method according to any one of claims 1-3, characterized in that the DCI includes a modulation coding scheme, MCS, field, and the MCS field includes N MCS subfields, wherein one MCS subfield indicates a resource in time domain corresponding to a cell, wherein M cells out of the N cells are not scheduled, wherein the M cells include a first cell, and wherein M is a positive integer less than or equal to N, wherein when M is an integer greater than 1, the first cell is a cell with the lowest cell index among the M cells, or the first cell is a cell with the highest cell index among the M cells, and wherein the MCS subfield corresponding to the first cell indicates a location of a resource in time domain for retransmitting hybrid automatic retransmission request acknowledgement, HARQ-ACK, information.
  5. The method according to any one of claims 1-4, characterized in that the DCI is carried on a physical downlink control channel, PDCCH, wherein the DCI includes scheduling information of T downlink shared physical channels, PDSCHs, corresponding to W cells, wherein W is a positive integer less than or equal to N, and T is an integer greater than 0, wherein a subcarrier spacing corresponding to the PDCCH is µ PDCCH , and subcarrier spacings corresponding to the T PDSCHs are all µ PDSCH , wherein when µ PDCCH < µ PDSCH , a first symbol of the first scheduled PDSCH is not earlier than a first symbol in a slot next to the slot in which N pdsch PDCCH symbols are located after an end symbol of the PDCCH; when µ PDCCH > µ PDSCH , a first symbol of the first scheduled PDSCH is not earlier than an end symbol of N pdsch PDCCH symbols after an end symbol of the PDCCH; wherein the first PDSCH is the PDSCH with the earliest starting location among the T PDSCHs, and N pdsch is related to µ PDCCH .
  6. The method according to any one of claims 1-4, characterized in that the DCI is carried on a physical downlink control channel, PDCCH, wherein the DCI includes scheduling information of T downlink shared physical channels, PDSCHs, corresponding to W cells, wherein W is a positive integer less than or equal to N, and T is an integer greater than 0, wherein a subcarrier spacing corresponding to the PDCCH is µ PDCCH , and a maximum subcarrier spacing or a minimum subcarrier spacing out of the subcarrier spacings corresponding to the T PDSCHs is µ PDSCH , wherein when µ PDCCH < µ DSCH , a first symbol of the first scheduled PDSCH is not earlier than a first symbol in a slot next to the slot in which N pdsch PDCCH symbols are located after an end symbol of the PDCCH; when µ PDCCH > µ DSCH , a first symbol of the first scheduled PDSCH is not earlier than an end symbol of N pdsch PDCCH symbols after an end symbol of the PDCCH; wherein the first PDSCH is the PDSCH with the earliest starting location among the T PDSCHs, and N pdsch is related to µ PDCCH .
  7. A communication method, characterized in that the method comprises: determining downlink control information, DCI, the DCI for simultaneous schedule of data transmission of N cells, N being an integer greater than 1; and sending the DCI to a terminal device.
  8. The method according to claim 7, characterized in that the DCI includes a frequency domain resource allocation, FDRA, field, and the FDRA field includes N FDRA subfields, wherein one FDRA subfield indicates a resource in frequency domain corresponding to a cell, wherein the one FDRA subfield includes (X + Y) bits, the X bits indicating allocated interlaced resources, and the Y bits being determined based on a number of resource block, RB, sets included in an activated uplink bandwidth part, BWP, wherein the N cells include a first cell, wherein the values of the X bits in the FDRA subfield corresponding to the first cell being all 1 indicates that the first cell is not scheduled; or the values of the X bits in the FDRA subfield corresponding to the first cell being all 0 indicates that the first cell is not scheduled.
  9. The method according to claim 7, characterized in that the DCI includes a frequency domain resource allocation, FDRA, field, and the FDRA field includes N FDRA subfields, wherein one FDRA subfield indicates a resource in frequency domain corresponding to a cell, wherein the one FDRA subfield includes (X + Y) bits, the X bits indicating allocated interlaced resources, and the Y bits being determined based on a number of resource block, RB, sets included in an activated uplink bandwidth part, BWP, wherein the N cells include a first cell, wherein the values of the (X + Y) bits in the FDRA subfield corresponding to the first cell being all 1 indicates that the first cell is not scheduled; or the values of the (X + Y) bits in the FDRA subfield corresponding to the first cell being all 0 indicates that the first cell is not scheduled.
  10. The method according to any one of claims 7-9, characterized in that the DCI includes a modulation coding scheme, MCS, field, and the MCS field includes N MCS subfields, wherein one MCS subfield indicates a resource in time domain corresponding to a cell, wherein M cells out of the N cells are not scheduled, wherein the M cells include a first cell, and wherein M is a positive integer less than or equal to N, wherein when M is an integer greater than 1, the first cell is a cell with the lowest cell index among the M cells, or the first cell is a cell with the highest cell index among the M cells, and wherein the MCS subfield corresponding to the first cell indicates a location of a resource in time domain for retransmitting hybrid automatic retransmission request acknowledgement, HARQ-ACK, information.
  11. The method according to any one of claims 7-10, characterized in that the DCI is carried on a physical downlink control channel, PDCCH, wherein the DCI includes scheduling information of T downlink shared physical channels, PDSCHs, corresponding to W cells, wherein W is a positive integer less than or equal to N, and T is an integer greater than 0, wherein a subcarrier spacing corresponding to the PDCCH is µ PDCCH , and subcarrier spacings corresponding to the T PDSCHs are all µ PDSCH , wherein when µ PDCCH < µ PDSCH , a first symbol of the first scheduled PDSCH is not earlier than a first symbol in a slot next to the slot in which N pdsch PDCCH symbols are located after an end symbol of the PDCCH; when µ PDCCH > µ DSCH , a first symbol of the first scheduled PDSCH is not earlier than an end symbol of N pdsch PDCCH symbols after an end symbol of the PDCCH; wherein the first PDSCH is the PDSCH with the earliest starting location among the T PDSCHs, and N pdsch is related to µ PDCCH .
  12. The method according to any one of claims 7-10, characterized in that the DCI is carried on a physical downlink control channel, PDCCH, wherein the DCI includes scheduling information of T downlink shared physical channels, PDSCHs, corresponding to W cells, wherein W is a positive integer less than or equal to N, and T is an integer greater than 0, wherein a subcarrier spacing corresponding to the PDCCH is µ PDCCH , and a maximum subcarrier spacing or a minimum subcarrier spacing out of the subcarrier spacings corresponding to the T PDSCHs is µ PDSCH , wherein when µ PDCCH < µ DSCH , a first symbol of the first scheduled PDSCH is not earlier than a first symbol in a slot next to the slot in which N pdsch PDCCH symbols are located after an end symbol of the PDCCH; when µ PDCCH > µ PDSCH , a first symbol of the first scheduled PDSCH is not earlier than an end symbol of N pdsch PDCCH symbols after an end symbol of the PDCCH; wherein the first PDSCH is the PDSCH with the earliest starting location among the T PDSCHs, and N pdsch is related to µ PDCCH .
  13. A communication apparatus, characterized in that the apparatus comprises: a transceiver unit configured to receive downlink control information, DCI, from a network device, the DCI for simultaneous schedule of data transmission of N cells, N being an integer greater than 1; the transceiver unit is further configured to send data according to the DCI.
  14. A communication apparatus, characterized in that the apparatus comprises: a processing unit configured to determine downlink control information, DCI, the DCI for simultaneous schedule of data transmission of N cells, N being an integer greater than 1; and a transceiver unit configured to send the DCI to a terminal device.
  15. A chip, characterized in that the chip comprises a processor and a communication interface, the processor configured to cause the chip to perform the method according to any one of claims 1-6, or the processor is configured to cause the chip to perform the method according to any one of claims 7-12.
  16. A module device, characterized in that the module device comprises a communication module, a power module, a storage module, and a chip, wherein: the power module is configured to provide power for the module device; the storage module is configured to store data and instructions; the communication module is configured for internal communication of the module device, and/or for communication between the module device and external devices; and the chip is configured to perform the method according to any one of claims 1-6, or configured to perform the method according to any one of claims 7-12.
  17. A communication apparatus, characterized in that the communication apparatus comprises: one or more processors, one or more memories, and one or more transceivers; wherein the one or more memories are configured to store computer programs, the one or more processors and the one or more transceivers are configured to execute the computer programs stored in the one or more memories to cause the communication apparatus to perform the method according to any one of claims 1-6 or to perform the method according to any one of claims 7-12.
  18. A computer-readable storage medium, characterized in that the computer-readable storage medium has computer-readable instructions stored therein, wherein the computer-readable instructions, when being executed on a computer, cause the computer to perform the method according to any one of claims 1-6 or to perform the method according to any one of claims 7-12.
  19. A computer program product, characterized in that the computer program product comprises computer program code, wherein the computer program code, when being executed, cause the method according to any one of claims 1-6 or the method according to any one of claims 7-12 to be implemented.
  20. A communication system, characterized in that the communication system comprises a communication apparatus for performing the method of any one of claims 1-6, and a communication apparatus for performing the method of any one of claims 7-12.

Description

The present application claims priority to CN Patent Application No. 2023108046854, filed with the China National Intellectual Property Administration on June 30, 2023, and entitled "COMMUNICATION METHOD AND RELATED APPARATUS", the entirety of which is incorporated herein by reference. FIELD OF TECHNOLOGY The present application relates to communication technology, and particularly to a communication method and a related apparatus. BACKGROUND At present, downlink control information (DCI) is mainly used to schedule data transmission of a cell, but this scheduling method is inefficient and has limited applicability. SUMMARY OF THE INVENTION Embodiments of the present application provide a communication method and a related apparatus, which further provides enhancements to the design of DCI, which contributes to improving data transmission efficiency, and has high applicability. In a first aspect, embodiments of the present application provide a communication method, which can be applied to a terminal device. The terminal device may be the terminal device itself or a chip in the terminal device. The method comprises: receiving downlink control information, DCI, from a network device, the DCI capable of being used to simultaneously schedule data transmission of N cells, N being an integer greater than 1; andsending data according to the DCI. In the present application, DCI can be used to simultaneously schedule data transmission of two or more cells, which contributes to improving data transmission efficiency and has high applicability. Alternatively, in combination with the first aspect, the DCI includes a frequency domain resource allocation, FDRA, field, and the FDRA field includes N FDRA subfields, wherein one FDRA subfield is used to indicate a resource in frequency domain corresponding to a cell, wherein the one FDRA subfield includes (X + Y) bits, wherein the X bits are used for indicating allocated interlaced resources, and the Y bits are determined based on a number of resource block, RB, sets included in an activated uplink bandwidth part, BWP, wherein the N cells include a first cell. When the values of the X bits in the FDRA subfield corresponding to the first cell are all 1, it indicates that the first cell is not scheduled; or when the values of the X bits in the FDRA subfield corresponding to the first cell are all 0, it indicates that the first cell is not scheduled. In this implementation, it is specified how to indicate via DCI that one or more cells are not scheduled/unscheduled when a type-2 resource allocation type (i.e., an interlace resource allocation type) is used. Alternatively, in combination with the first aspect, the DCI includes a frequency domain resource allocation, FDRA, field, and the FDRA field includes N FDRA subfields, wherein one FDRA subfield is used to indicate a resource in frequency domain corresponding to a cell, wherein the one FDRA subfield includes (X + Y) bits, wherein the X bits are used for indicating allocated interlaced resources, and the Y bits are determined based on a number of resource block, RB, sets included in an activated uplink bandwidth part, BWP, wherein the N cells include a first cell. When the values of the (X + Y) bits in the FDRA subfield corresponding to the first cell are all 1, it indicates that the first cell is not scheduled; or when the values of the (X + Y) bits in the FDRA subfield corresponding to the first cell are all 0, it indicates that the first cell is not scheduled. In this implementation, it is specified how to indicate via DCI that one or more cells are not scheduled/unscheduled when a type-2 resource allocation type (i.e., an interlace resource allocation type) is used. Alternatively, in combination with the first aspect, the DCI includes a modulation coding scheme, MCS, field, and the MCS field includes N MCS subfields, wherein one MCS subfield is used to indicate a resource in time domain corresponding to a cell, wherein M cells out of the N cells are not scheduled, wherein the M cells include a first cell, and wherein M is a positive integer less than or equal to N. When M is an integer greater than 1, the first cell is a cell with the lowest cell index among the M cells, or the first cell is a cell with the highest cell index among the M cells, wherein the MCS subfield corresponding to the first cell is used to indicate a location of a resource in time domain for retransmitting hybrid automatic retransmission request acknowledgement, HARQ-ACK, information. In this implementation, it is specified how to indicate a location of a resource in time domain for retransmitting HARQ-ACK information when FDRA is used to indicate which cells are scheduled. Alternatively, in combination with the first aspect, the DCI is carried on a physical downlink control channel, PDCCH, wherein the DCI includes scheduling information of T downlink shared physical channels, PDSCHs, corresponding to W cells, wherein W is a positive integer less tha