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JP-7857427-B2 - Method and device for applying dynamic codebooks for HARQ-ACK feedback

JP7857427B2JP 7857427 B2JP7857427 B2JP 7857427B2JP-7857427-B2

Inventors

  • リウ， ハンチャオ
  • シェ， フェン
  • ジャオ， ミンジェ
  • ワン， フェイ

Assignees

  • 中興通訊股▲ふん▼有限公司

Dates

Publication Date
20260512
Application Date
20220630

Claims (18)

  1. A method for wireless communication, wherein the method is The wireless communication device includes transmitting HARQ - ACK based on two or more Dynamic Hybrid Auto Retransmission Request Acknowledgment ( HARQ-ACK ) codebooks, Each dynamic HARQ-ACK codebook corresponds to a Timing Advance Group (TAG) , A method in which each dynamic HARQ-ACK codebook is used for several carriers that belong only to the TAGs corresponding by the dynamic HARQ-ACK codebook .
  2. For the dynamic HARQ-ACK codebook corresponding to the aforementioned TAG, The Counter Downlink Assignment Index (cDAI) field included in the Downlink Control Information (DCI) is counted based on the number of carriers belonging only to the TAG. The method according to claim 1, wherein the total downlink assignment index (tDAI) field included in the DCI for the dynamic HARQ-ACK codebook is used for several carriers belonging only to the TAG.
  3. The method according to claim 1, wherein the TAG index field included in the DCI indicates the TAG, and the TAG corresponds to the dynamic HARQ-ACK codebook for a scheduled physical downlink shared channel (PDSCH).
  4. The wireless communication device further includes receiving configuration information, The method according to claim 1, wherein the configuration information includes a mapping between the dynamic HARQ-ACK codebook and the TAG.
  5. The method according to claim 1, wherein the dynamic HARQ-ACK codebook information included in the DCI indicates the dynamic HARQ-ACK codebook for a scheduled physical downlink shared channel (PDSCH).
  6. A method for wireless communication, wherein the method is The wireless communication node includes receiving HARQ- ACKs from a wireless communication device based on two or more Dynamic Hybrid Auto Retransmission Request Acknowledgment ( HARQ-ACK ) codebooks, Each dynamic HARQ-ACK codebook corresponds to a Timing Advance Group (TAG) , A method in which each dynamic HARQ-ACK codebook is used for several carriers that belong only to the TAGs corresponding by the dynamic HARQ-ACK codebook .
  7. The aforementioned TAG compatible The aforementioned For the Dynamic HARQ-ACK Codebook, The Counter Downlink Assignment Index (cDAI) field included in the Downlink Control Information (DCI) is counted based on the number of carriers belonging only to the TAG. The total downlink assignment index (tDAI) field included in the DCI for the dynamic HARQ-ACK codebook is used for several carriers belonging only to the TAG, claim 6 Methods used in [the specified method].
  8. The method according to claim 6 , wherein the TAG index field included in the DCI indicates the TAG, and the TAG corresponds to the dynamic HARQ-ACK codebook for the scheduled physical downlink shared channel (PDSCH).
  9. The wireless communication node further includes transmitting configuration information, The method according to claim 6 , wherein the configuration information includes a mapping between the dynamic HARQ-ACK codebook and the TAG.
  10. The method according to claim 6 , wherein the dynamic HARQ-ACK codebook information included in the DCI indicates the dynamic HARQ-ACK codebook for a scheduled physical downlink shared channel (PDSCH).
  11. Apparatus, the apparatus, The memory that stores the instructions, The system comprises at least one processor that communicates with the memory, When the at least one processor executes the instruction, the at least one processor, The device is configured to transmit HARQ - ACK based on two or more Dynamic Hybrid Automatic Retransmission Request Acknowledgment ( HARQ-ACK ) codebooks. Each dynamic HARQ-ACK codebook corresponds to a Timing Advance Group (TAG) , Each dynamic HARQ-ACK codebook is used for several carriers that belong only to the TAGs corresponding to the dynamic HARQ-ACK codebook .
  12. The apparatus according to claim 11 , wherein the TAG index field included in the DCI indicates the TAG, and the TAG corresponds to the dynamic HARQ-ACK codebook for the scheduled physical downlink shared channel (PDSCH).
  13. When the at least one processor executes the instruction, the at least one processor, The device is further configured to receive configuration information, The apparatus according to claim 11 , wherein the configuration information includes a mapping between the dynamic HARQ-ACK codebook and the TAG.
  14. The apparatus according to claim 11 , wherein the dynamic HARQ-ACK codebook information included in the DCI indicates the dynamic HARQ-ACK codebook for a scheduled physical downlink shared channel (PDSCH).
  15. Apparatus, the apparatus, The memory that stores the instructions, The system comprises at least one processor that communicates with the memory, When the at least one processor executes the instruction, the at least one processor, The device is configured to receive HARQ- ACKs from a wireless communication device based on two or more Dynamic Hybrid Automatic Retransmission Request Acknowledgment ( HARQ-ACK ) codebooks. Each dynamic HARQ-ACK codebook corresponds to a Timing Advance Group (TAG) , Each dynamic HARQ-ACK codebook is used for several carriers that belong only to the TAGs corresponding to the dynamic HARQ-ACK codebook .
  16. The apparatus according to claim 15 , wherein the TAG index field included in the DCI indicates the TAG, and the TAG corresponds to the dynamic HARQ-ACK codebook for the scheduled physical downlink shared channel (PDSCH).
  17. When the at least one processor executes the instruction, the at least one processor, The device is further configured to transmit configuration information, The apparatus according to claim 15 , wherein the configuration information includes a mapping between the dynamic HARQ-ACK codebook and the TAG.
  18. The apparatus according to claim 15 , wherein the dynamic HARQ-ACK codebook information included in the DCI indicates the dynamic HARQ-ACK codebook for a scheduled physical downlink shared channel (PDSCH).

Description

This disclosure generally pertains to wireless communications. Specifically, this disclosure relates to a method and device for applying a dynamic codebook for Hybrid Automatic Retransmission Request Acknowledgment (HARQ-ACK) feedback. Wireless communication technologies are driving the world towards an increasingly connected and networked society. This disclosure describes various embodiments for applying dynamic codebooks for Hybrid Automatic Retransmission Request Acknowledgment (HARQ-ACK) feedback. When wireless communication is conducted under carrier aggregation (CA), relatively longer latency may occur for information transmission between various carriers belonging to different timing advance groups (TAGs). Various challenges/problems can arise associated with HARQ-ACK information feedback using dynamic codebooks. For example, one challenge/problem is that when dynamic codebooks are used for HARQ-ACK information feedback regarding dynamic scheduling (e.g., downlink allocation as shown in DCI), the total downlink allocation index (tDAI) or counter downlink allocation index (cDAI) may not be accurately represented in the downlink control information (DCI). An improved and appropriate design of a control mechanism for applying dynamic codebooks for Hybrid Automatic Retransmission Request Acknowledgment (HARQ-ACK) feedback may help improve the efficiency of wireless access networks. This disclosure may address at least one of the challenges/problems associated with existing systems in order to improve the performance of wireless communications. Figure 1A shows an example of a wireless communication system that includes one wireless network node and one or more user devices. Figure 1B shows schematic diagrams of various embodiments of this disclosure. Figure 1C shows another schematic diagram of various embodiments of the present disclosure. Figure 2 shows an example of a network node. Figure 3 shows an example of user equipment. Figure 4A shows a flowchart of the method for wireless communication. Figure 4B shows a flowchart of another method for wireless communication. Figure 5 shows a flowchart of a non-limiting embodiment for wireless communication. Figure 6 shows a flowchart of a non-limiting embodiment for wireless communication. Figure 7 shows a flowchart of a non-limiting embodiment for wireless communication. Figure 8 shows a flowchart of a non-limiting embodiment for wireless communication. This disclosure will be described in detail hereafter with reference to accompanying drawings that form part of this disclosure and illustrate specific examples of embodiments. However, it should be noted that this disclosure may be embodied in various different forms, and therefore, the subject matter included or claimed is intended to be construed as not being limited to any of the embodiments described below. Throughout this specification and the claims, terms may have nuances implied or suggested in context beyond their explicitly stated meanings. Similarly, phrases such as “in one embodiment” or “in some embodiments” as used herein do not necessarily refer to the same embodiment, and phrases such as “in another embodiment” or “in other embodiments” as used herein do not necessarily refer to different embodiments. The phrases "in one implementation" or "in some implementations" as used herein do not necessarily refer to the same implementation, and the phrases "in another implementation" or "in other implementations" as used herein do not necessarily refer to different implementations. For example, the claimed subject matter is intended to include, in whole or in part, exemplary embodiments or combinations of implementations. In general, technical terms can be understood, at least partially, from their use in context. For example, terms such as “and,” “or,” or “and/or,” as used herein, may have various meanings that are at least partially dependent on the context in which such terms are used. Typically, when “or” is used to relate a list such as “A, B, or C,” it is intended to mean both “A, B, and C” in an inclusive sense and “A, B, or C” in an exclusive sense. In addition, terms such as “one or more” or “at least one,” as used herein, may be used in a singular sense to describe any feature, structure, or characteristic, or in a plural sense to describe a combination of features, structures, or characteristics, at least partially depending on the context. Similarly, again, terms such as "a," "an," or "the" can be understood, at least partially depending on the context, to convey singular or plural use. In addition, the terms "based on" or "determined by" can be understood not necessarily as intended to convey an exclusive set of factors, but rather, again, at least partially depending on the context, to allow for the presence of additional factors that are not necessarily explicitly stated. This disclosure describes methods and devices for applying dynamic codebooks for Hybrid Automatic Retransmission Req