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EP-4740347-A1 - SYSTEMS AND METHODS FOR HARQ FEEDBACK DISABLING WITH MULTIPLE TRANSPORT BLOCKS SCHEDULING

EP4740347A1EP 4740347 A1EP4740347 A1EP 4740347A1EP-4740347-A1

Abstract

Presented are systems and methods for hybrid automatic repeat request (HARQ) feedback disabling with multiple transport blocks (TBs) scheduling. A wireless communication device may receive at least one configuration of multiple transport blocks (TBs) and hybrid automatic repeat request (HARQ) related information via at least one signaling from a wireless communication node. The wireless communication device may generate at least one HARQ feedback of the multiple TBs according to the at least one configuration. The at least one configuration may comprise an indication of whether bundling for the at least one HARQ feedback is configured.

Inventors

  • CUI, Fangyu
  • ZHANG, NAN
  • CAO, WEI
  • LI, JUNLI
  • YIN, Yachao

Assignees

  • ZTE Corporation

Dates

Publication Date
20260513
Application Date
20230721

Claims (20)

  1. A method comprising: receiving, by a wireless communication device from a wireless communication node, at least one configuration of multiple transport blocks (TBs) and hybrid automatic repeat request (HARQ) related information via at least one signaling; and generating, by the wireless communication device, at least one HARQ feedback of the multiple TBs according to the at least one configuration, wherein the at least one configuration comprises an indication of whether bundling for the at least one HARQ feedback is configured.
  2. The method of claim 1, wherein the multiple TBs are scheduled by a single downlink control information (DCI) or a single physical downlink control channel (PDCCH) .
  3. The method of claim 1, wherein the at least one signaling comprises at least one of: a downlink control information (DCI) signaling; a higher layer signaling; a medium access control control element (MAC CE) signaling; or a radio resource control (RRC) signaling.
  4. The method of claim 1, wherein the multiple TBs include at least one TB that is HARQ feedback disabled.
  5. The method of claim 1, wherein the at least one configuration further comprises at least one of: an indication of whether one or more TBs of the multiple TBs in the same bundle will be associated with same HARQ process; an indication of whether feedback for at least one HARQ process is enabled or disabled; or an indication of whether at least one TB of the multiple TBs is HARQ feedback enabled or disabled.
  6. The method of claim 1, comprising: in response to the bundling for the at least one HARQ feedback being not configured, generating, by the wireless communication device, the at least one HARQ feedback for one or more TBs of the multiple TBs that are HARQ feedback enabled.
  7. The method of claim 1, comprising: in response to the bundling for the at least one HARQ feedback being configured, generating, by the wireless communication device, an aggregate HARQ feedback for a bundle of one or more of the multiple TBs, via a logical AND operation of individual HARQ feedback.
  8. The method of claim 1, comprising: in response to the bundling for the at least one HARQ feedback being configured and the at least one TB of the multiple TBs being HARQ feedback enabled, generating, by the wireless communication device, an aggregate HARQ feedback via a logical AND operation of individual HARQ feedback corresponding to the at least one TB of the multiple TBs.
  9. The method of claim 7 or 8, comprising: generating, by the wireless communication device, the aggregate HARQ feedback by excluding HARQ feedback of one or more TBs of the multiple TBs that are HARQ feedback disabled, from the logical AND operation.
  10. The method of claim 7 or 8, comprising: performing, by the wireless communication device, the logical AND operation by: defining a respective HARQ feedback for each TB of the multiple TBs that is HARQ feedback disabled as an acknowledgment (ACK) , and including the respective HARQ feedback in the logical AND operation.
  11. The method of claim 1, comprising: in response to the bundling for the at least one HARQ feedback being configured, generating, by the wireless communication device, the at least one HARQ feedback for one or more TBs of the multiple TBs that are HARQ feedback enabled.
  12. The method of claim 1, comprising: generating, by the wireless communication device, an aggregate HARQ feedback via a logical AND operation of individual HARQ feedback corresponding to each of the multiple TBs.
  13. The method of claim 1, comprising: generating, by the wireless communication device, an aggregate HARQ feedback for a bundle of one or more of the multiple TBs, via a logical AND operation of individual HARQ feedback corresponding to those of the one or more of the multiple TBs that are HARQ feedback enabled.
  14. The method of claim 5, wherein the at least one TB of the multiple TBs being HARQ feedback enabled indicates that HARQ feedback is enabled for at least one HARQ process associated with the at least one TB.
  15. The method of claim 5, wherein the at least one TB of the multiple TBs being HARQ feedback disabled indicates that HARQ feedback is disabled for at least one HARQ process associated with the at least one TB.
  16. The method of claim 1, comprising: associating, by the wireless communication device, the at least one TB of the multiple TBs in the same bundle with at least one same HARQ process.
  17. The method of claim 16, wherein the at least one same HARQ process associated with the at least one TB of the multiple TBs comprises at least one of: HARQ process 0; HARQ process 1; M HARQ processes, wherein the HARQ process IDs are associated with the TB bundle indexes with or without an offset; M HARQ processes, wherein the at least one same HARQ process for each bundle is the one with lowest HARQ process ID in the bundle; M HARQ processes, wherein the at least one same HARQ process for each bundle is the one with highest HARQ process ID in the bundle; M HARQ processes, wherein the at least one same HARQ process for each bundle is the one associated with the at least one TB with lowest TB index in the bundle; M HARQ processes, wherein the at least one same HARQ process for each bundle is the one associated with the at least one TB with highest TB index in the bundle; or M HARQ processes with HARQ process IDs starting from the at least one same HARQ process associated with a first TB; wherein M is a number of bundles.
  18. The method of claim 16, comprising: in response to the at least one same HARQ process associated with the at least one TB of the multiple TBs in the same bundle being HARQ feedback disabled, generating, by the wireless communication device, an acknowledgment (ACK) .
  19. The method of claim 16, comprising: in response to the at least one same HARQ process associated with the at least one TB of the multiple TBs in the same bundle being HARQ feedback disabled, no HARQ-ACK is generated for the at least one TB.
  20. The method of claim 16, comprising: in response to the at least one same HARQ process associated with the at least one TB of the multiple TBs in the same bundle being HARQ feedback enabled, generating, by the wireless communication device, an aggregate HARQ feedback for the at least one TB of the multiple TBs in the same bundle, via a logical AND operation of individual HARQ feedback.

Description

SYSTEMS AND METHODS FOR HARQ FEEDBACK DISABLING WITH MULTIPLE TRANSPORT BLOCKS SCHEDULING TECHNICAL FIELD The disclosure relates generally to wireless communications, including but not limited to systems and methods for hybrid automatic repeat request (HARQ) feedback disabling with multiple transport blocks (TBs) scheduling. BACKGROUND The standardization organization Third Generation Partnership Project (3GPP) is currently in the process of specifying a new Radio Interface called 5G New Radio (5G NR) as well as a Next Generation Packet Core Network (NG-CN or NGC) . The 5G NR will have three main components: a 5G Access Network (5G-AN) , a 5G Core Network (5GC) , and a User Equipment (UE) . In order to facilitate the enablement of different data services and requirements, the elements of the 5GC, also called Network Functions, have been simplified with some of them being software based, and some being hardware based, so that they could be adapted according to need. SUMMARY The example embodiments disclosed herein are directed to solving the issues relating to one or more of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings. In accordance with various embodiments, example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of this disclosure. At least one aspect is directed to a system, method, apparatus, or a computer-readable medium of the following. A wireless communication device (e.g., a user equipment (UE) ) may receive at least one configuration of multiple transport blocks (TBs) and hybrid automatic repeat request (HARQ) related information via at least one signaling from a wireless communication node. The wireless communication device may generate at least one HARQ feedback (e.g., HARQ-ACK information) of the multiple TBs according to the at least one configuration. The at least one configuration may comprise an indication of whether bundling for the at least one HARQ feedback is configured. In some embodiments, there can be multiple configurations (e.g., whether bundling is enabled, or whether feedback is disabled) . The multiple configurations may be configured via different signaling. The bundling for HARQ feedback may refer to an aggregation of feedback for multiple transport blocks or HARQ processes into a single transmission. The multiple TBs can be scheduled by a single downlink control information (DCI) or a single physical downlink control channel (PDCCH) . The at least one signaling may comprise at least one of: a downlink control information (DCI) signaling; a higher layer signaling; a medium access control control element (MAC CE)  signaling; or a radio resource control (RRC) signaling. The multiple TBs may include at least one TB that is HARQ feedback disabled. In some embodiments, the at least one configuration may further comprise at least one of: an indication of whether one or more TBs of the multiple TBs in the same bundle is to be associated with same HARQ process; an indication of whether feedback for at least one HARQ process is enabled or disabled; or an indication of whether at least one TB of the multiple TBs is HARQ feedback enabled or disabled. In response to the bundling for the at least one HARQ feedback being not configured, the wireless communication device may generate the at least one HARQ feedback for one or more TBs of the multiple TBs that are HARQ feedback enabled. For enhanced machine-type communication (eMTC) , multiple bundles can be divided. An AND operation can be performed per bundle. In response to the bundling for the at least one HARQ feedback being configured, the wireless communication device may generate an aggregate HARQ feedback for a bundle of one or more of the multiple TBs, via a logical AND operation of individual HARQ feedback. The aggregate HARQ feedback can be a result of a logical AND operation of individual HARQ feedback in the bundle. In response to the bundling for the at least one HARQ feedback being configured and the at least one TB of the multiple TBs being HARQ feedback enabled, the wireless communication device may generate an aggregate HARQ feedback via a logical AND operation of individual HARQ feedback corresponding to the at least one TB of the multiple TBs. The wireless communication device may generate the aggregate HARQ feedback by excluding HARQ feedback of one or more TBs of the multiple TBs that are HARQ feedback disabled, from the logical AND operation. The wireless communication device may perform the logical AND operation by: