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CN112136337A - Downlink control signaling transmission method and related product - Google Patents

Downlink control signaling transmission method and related product Download PDF

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Publication number
CN112136337A
CN112136337A CN201980020090.1A CN201980020090A CN112136337A CN 112136337 A CN112136337 A CN 112136337A CN 201980020090 A CN201980020090 A CN 201980020090A CN 112136337 A CN112136337 A CN 112136337A
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China
Prior art keywords
dci
priority
priorities
channel
correspondence
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Granted
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CN201980020090.1A
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Chinese (zh)
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CN112136337B (en
Inventor
林亚男
徐婧
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A downlink control signaling transmission method and related products comprise: receiving a first downlink control signaling (DCI), wherein the first DCI does not comprise a priority indication information field; receiving a second DCI, wherein the second DCI comprises a priority indication information field, and transmission resources corresponding to the first DCI are partially overlapped or completely overlapped with transmission resources corresponding to the second DCI; and determining the priority of the channel or information corresponding to the first DCI according to the target information domain in the first DCI. On the premise of ensuring that the first DCI payload size is not changed, a priority indication can be provided to support flexible scheduling of the URLLC.

Description

PCT国内申请，说明书已公开。PCT domestic application, the description has been published.

Claims (60)

  1. A method for transmitting downlink control signaling is characterized by comprising the following steps:
    a terminal device receives a first downlink control signaling DCI, where a format of the first DCI or a target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a Downlink Assignment Index (DAI) field in the first DCI;
    and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the format of the first DCI or the target information domain in the first DCI.
  2. The method of claim 1, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the format of the first DCI comprises:
    when the format of the first DCI is 0_0, determining that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or
    When the first DCI is a DCI with a format of 0_0 received in a common search space, determining that the priority of a channel or information scheduled by the first DCI is the highest priority; or
    When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, determining that the priority of a channel scheduled by the first DCI is the lowest priority.
  3. The method of claim 1, further comprising
    And the terminal equipment receives second DCI, wherein the second DCI comprises a priority indication information domain.
  4. The method of claim 3, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI comprises:
    and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the target information field and the priority indication information field included by the second DCI.
  5. The method of claim 4, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI comprises:
    and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the corresponding relation between the value of the N bits in the target information domain and the first priority, wherein the corresponding relation of the first priority is the corresponding relation between the value and the priority of the priority indication information domain included in the second DCI, and N is the length of the priority indication information domain included in the second DCI.
  6. The method of claim 5, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
  7. The method of claim 4, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI comprises:
    and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the corresponding relation between the value of the M bits in the target information domain and a second priority, wherein the corresponding relation of the second priority is the corresponding relation between the value of the M bits in the target information domain and the priority, M is less than or equal to L, L is less than N, L, N and M are positive integers, L is the length of the target information domain, and N is the length of a priority indication information domain included in the second DCI.
  8. The method of claim 7, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities in a correspondence of first priorities, wherein the correspondence of the first priorities is a correspondence between values and priorities of priority indication information fields included in the second DCI, and the correspondence of the first priorities includes a plurality of priorities.
  9. The method of claim 8, wherein the levels of the at least two priorities are adjacent.
  10. The method of claim 7, wherein K values included in the values of M bits in the target information field in the correspondence of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence of the first priority, wherein different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
  11. The method of claim 10, wherein K is equal to 1, or K is less than or equal to 2M-1。
  12. The method according to claim 10, wherein the K priorities are the highest priorities among a plurality of priorities included in the correspondence relationship of the first priorities.
  13. The method of any one of claims 1-12, further comprising:
    the terminal equipment determines the value of the DAI according to the DAI domain;
    when the value of the DAI is 1, the terminal device determines that the bit number of the feedback information corresponding to the channel or the information scheduled by the first DCI is 1;
    and when the DAI value is not 1, the terminal equipment determines the channel scheduled by the first DCI or a codebook of feedback information corresponding to the information according to a preset feedback time sequence set.
  14. The method of any of claims 1 or 3-12, wherein the format of the first DCI is 1_0 or 0_ 0; or
    The first DCI is a DCI of format 1_0 transmitted in a common search space.
  15. A method for transmitting downlink control signaling is characterized by comprising the following steps:
    a network device configures a format of a first DCI or a target information field in the first DCI, where the format of the first DCI or the target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;
    and the network equipment sends the first DCI to terminal equipment.
  16. The method of claim 15, wherein when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or
    When the first DCI is a DCI with a format of 0_0 received in a common search space, the priority of a channel or information scheduled by the first DCI is the highest priority; or
    When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, the priority of a channel scheduled by the first DCI is the lowest priority.
  17. The method of claim 15, wherein the method further comprises:
    and the network equipment sends a second DCI to the terminal equipment, wherein the second DCI comprises a priority indication information domain.
  18. The method of claim 17, wherein the target information field and the priority indication information field included in the second DCI are used to determine a priority of a channel or information scheduled by the first DCI.
  19. The method of claim 18, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between a value of N bits in the target information field and a first priority, where the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and N is a length of the priority indication information field included in the second DCI.
  20. The method of claim 19, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
  21. The method of claim 18, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between values of M bits in the target information field and a second priority, wherein the correspondence of the second priority is a correspondence between values of M bits in the target information field and priorities, M is equal to or less than L, L < N, L, N and M are positive integers, L is a length of the target information field, and N is a length of a priority indication information field included in the second DCI.
  22. The method of claim 21, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities in a correspondence of first priorities, wherein the correspondence of the first priorities is a correspondence between values and priorities of priority indication information fields included in the second DCI, and the correspondence of the first priorities includes a plurality of priorities.
  23. The method of claim 22, wherein the levels of the at least two priorities are adjacent.
  24. The method of claim 21, wherein K values included in the values of M bits in the target information field in the correspondence of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence of the first priority, wherein different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
  25. The method of claim 24, wherein K is equal to 1, or K is less than or equal to 2M-1。
  26. The method according to claim 24, wherein the K priorities are the highest priorities among a plurality of priorities included in the correspondence relationship of the first priorities.
  27. The method of any one of claims 15-26, wherein the DAI field is used to indicate a value of DAI;
    when the value of the DAI is 1, the bit number of feedback information corresponding to a channel or information scheduled by the first DCI is 1;
    and when the DAI value is not 1, determining the channel scheduled by the first DCI or the codebook of the feedback information corresponding to the information according to a preset feedback time sequence set.
  28. The method of any of claims 15 or 17-26, wherein the format of the first DCI is 1_0 or 0_ 0; or
    The first DCI is a DCI of format 1_0 transmitted in a common search space.
  29. A terminal device, comprising a processing unit and a communication unit,
    the communication unit is configured to receive a first DCI, where a format of the first DCI or a target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;
    and the processing unit is configured to determine a priority of a channel or information scheduled by the first DCI according to the format of the first DCI or a target information field in the first DCI.
  30. The terminal device of claim 29, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI, and is specifically configured to:
    when the format of the first DCI is 0_0, determining that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or
    When the first DCI is a DCI with a format of 0_0 received in a common search space, determining that the priority of a channel or information scheduled by the first DCI is the highest priority; or
    When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, determining that the priority of a channel scheduled by the first DCI is the lowest priority.
  31. The terminal device of claim 29,
    the communication unit is further configured to receive a second DCI, where the second DCI includes a priority indication information field.
  32. The terminal device of claim 31, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to a target information field in the first DCI, and is specifically configured to:
    and determining the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included by the second DCI.
  33. The terminal device of claim 32, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI, and is specifically configured to:
    and determining the priority of the channel or information scheduled by the first DCI according to the corresponding relation between the value of N bits in the target information domain and the first priority, wherein the corresponding relation of the first priority is the corresponding relation between the value of the priority indication information domain included in the second DCI and the priority, and N is the length of the priority indication information domain included in the second DCI.
  34. The terminal device of claim 33, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
  35. The terminal device of claim 32, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI, and is specifically configured to:
    and determining the priority of the channel or information scheduled by the first DCI according to a corresponding relation between the value of the M bits in the target information domain and a second priority, wherein the corresponding relation of the second priority is a corresponding relation between the value of the M bits in the target information domain and the priority, M is less than or equal to L, L is less than N, L, N and M are positive integers, L is the length of the target information domain, and N is the length of a priority indication information domain included in the second DCI.
  36. The terminal device of claim 35, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities among a plurality of priorities included in a correspondence of a first priority, wherein the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and the correspondence of the first priority includes a plurality of priorities.
  37. The terminal device of claim 36, wherein the levels of the at least two priorities are adjacent.
  38. The terminal device of claim 35, wherein K values included in the values of M bits in the target information field in the correspondence relationship of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence relationship of the first priority, where different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
  39. The terminal device of claim 38, wherein K is equal to 1, or K is less than or equal to 2M-1。
  40. The terminal device according to claim 38, wherein the K priorities are highest priorities among a plurality of priorities included in the correspondence relationship of the first priorities.
  41. The terminal device according to any of claims 29-40,
    the processing unit is further used for determining the value of the DAI according to the DAI domain; and when the value of the DAI is 1, determining that the bit number of feedback information corresponding to the channel or information scheduled by the first DCI is 1; and when the DAI value is not 1, determining a codebook of feedback information corresponding to the channel or information scheduled by the first DCI according to a preset feedback time sequence set.
  42. The terminal device of any of claims 29 or 31-40, wherein the format of the first DCI is 1_0 or 0_ 0; or
    The first DCI is a DCI of format 1_0 transmitted in a common search space.
  43. A network device, comprising:
    a processing unit, configured to configure a format of a first DCI or a target information field in the first DCI, where the format of the first DCI or the target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;
    and the communication unit is used for sending the first DCI to terminal equipment.
  44. The network device of claim 43, wherein when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or
    When the first DCI is a DCI with a format of 0_0 received in a common search space, the priority of a channel or information scheduled by the first DCI is the highest priority; or
    When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, the priority of a channel scheduled by the first DCI is the lowest priority.
  45. The network device of claim 43,
    the communication unit is further configured to send a second DCI to the terminal device, where the second DCI includes a priority indication information field.
  46. The network device of claim 45, wherein a priority indication information field included in the target information field and the second DCI is used to determine a priority of a channel or information scheduled by the first DCI.
  47. The network device of claim 46, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between a value of N bits in the target information field and a first priority, wherein the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and N is a length of the priority indication information field included in the second DCI.
  48. The network device of claim 47, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
  49. The network device of claim 46, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between values of M bits in the target information field and a second priority, wherein the correspondence of the second priority is a correspondence between values of M bits in the target information field and priorities, M is equal to or less than L, L < N, L, N and M are positive integers, L is a length of the target information field, and N is a length of a priority indication information field included in the second DCI.
  50. The network device of claim 49, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities in a plurality of priorities included in a correspondence of a first priority, wherein the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and wherein the correspondence of the first priority includes a plurality of priorities.
  51. The network device of claim 50, wherein the levels of the at least two priorities are adjacent.
  52. The network device of claim 49, wherein K values included in the values of M bits in the target information field in the correspondence of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence of the first priority, wherein different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
  53. The network device of claim 52, wherein K is equal to 1, or K is less than or equal to 2M-1。
  54. The network device of claim 52, wherein the K priorities are the highest priorities among a plurality of priorities included in the correspondence of the first priorities.
  55. The network device of any of claims 43-54, wherein the DAI field is to indicate a value of a DAI;
    when the value of the DAI is 1, the bit number of feedback information corresponding to a channel or information scheduled by the first DCI is 1;
    and when the DAI value is not 1, determining the channel scheduled by the first DCI or the codebook of the feedback information corresponding to the information according to a preset feedback time sequence set.
  56. The network device of any one of claims 43 or 45-54, wherein the format of the first DCI is 1_0 or 0_ 0; or
    The first DCI is a DCI of format 1_0 transmitted in a common search space.
  57. A terminal device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-14.
  58. A network device comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 15-28.
  59. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-14.
  60. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 15-28.
CN201980020090.1A 2019-04-09 2019-04-09 Downlink control signaling transmission method and related product Active CN112136337B (en)

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