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US-20260129642-A1 - SMALL DATA TRANSMISSION IN CASE OF DYNAMIC ADAPTATION OF A SYNCHRONIZATION SIGNAL BLOCK

US20260129642A1US 20260129642 A1US20260129642 A1US 20260129642A1US-20260129642-A1

Abstract

Certain aspects of the present disclosure provide techniques for obtaining a configuration indicating a set of physical uplink shared channel (PUSCH) occasions, wherein one or more first PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with a synchronization signal block (SSB) conflict associated with a first SSB configuration; obtain a dynamic update indicating a second SSB configuration, wherein one or more second PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with the second SSB configuration; and sending at least one PUSCH transmission using at least one valid PUSCH occasion of the set of PUSCH occasions in accordance with the configuration.

Inventors

  • Mohammed JABI
  • Ahmed Attia ABOTABL
  • Diana Maamari

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260507
Application Date
20241104

Claims (20)

  1. 1 . An apparatus, comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause a user equipment (UE) to: obtain a configuration indicating a set of physical uplink shared channel (PUSCH) occasions, wherein one or more first PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with a synchronization signal block (SSB) conflict associated with a first SSB configuration; obtain a dynamic update indicating a second SSB configuration, wherein one or more second PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with the second SSB configuration; and send at least one PUSCH transmission using at least one valid PUSCH occasion of the set of PUSCH occasions in accordance with the configuration.
  2. 2 . The apparatus of claim 1 wherein an SSB overlaps a valid PUSCH occasion of the set of PUSCH occasions, that is valid according to the first SSB configuration, wherein the SSB overlaps the valid PUSCH occasion based at least in part on the second SSB configuration, and wherein the SSB is invalid.
  3. 3 . The apparatus of claim 1 , wherein the one or more first PUSCH occasions are associated with no SSB conflict in accordance with the second SSB configuration, and wherein the one or more first PUSCH occasions remain invalid for the second SSB configuration in accordance with the SSB conflict associated with the first SSB configuration.
  4. 4 . The apparatus of claim 1 , wherein the one or more first PUSCH occasions are valid in accordance with the second SSB configuration.
  5. 5 . The apparatus of claim 1 , wherein the one or more second PUSCH occasions are valid in accordance with the first SSB configuration.
  6. 6 . The apparatus of claim 1 , wherein the UE is in a Radio Resource Control (RRC) inactive state and allows small data transfer (SDT) via the set of PUSCH occasions, wherein the at least one PUSCH transmission is in the RRC inactive state.
  7. 7 . The apparatus of claim 1 , wherein the processing system is further configured to cause the UE to obtain an indication of the first SSB configuration.
  8. 8 . The apparatus of claim 1 , wherein the set of PUSCH occasions comprise Type-1 grant PUSCH occasions requested by the UE in an RRC connected state.
  9. 9 . The apparatus of claim 1 , wherein to obtain the dynamic update indicating the second SSB configuration, the processing system is configured to obtain the dynamic update indicating the second SSB configuration via at least one of an RRC release message, a dynamic grant for a new transmission, or a paging message.
  10. 10 . The apparatus of claim 1 , wherein the second SSB configuration comprises at least one of: at least one adjustment of a periodicity of SSB signals from the first SSB configuration, a non-uniform omission of at least one SSB burst of the first SSB configuration, an adjustment to a number of SSB signals within an SSB burst, an adjustment to a cellular discontinuous transmission (cell DTX) configuration of an SSB, an adjustment of at least one new SSB burst periodicity value, at least one new SSB burst, at least one new compact SSB burst, or adapting a position of SSBs within an SSB burst.
  11. 11 . An apparatus, comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause a network entity (NE) to: send a configuration indicating a set of physical uplink shared channel (PUSCH) occasions, wherein one or more first PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with a synchronization signal block (SSB) conflict associated with a first SSB configuration; send a dynamic update indicating a second SSB configuration, wherein one or more second PUSCH occasions, of the set of PUSCH occasions are invalid in accordance with the second SSB configuration; and obtain at least one PUSCH transmission using at least one valid PUSCH occasion of the set of PUSCH occasions in accordance with the configuration.
  12. 12 . The apparatus of claim 11 , wherein an SSB associated with an invalid PUSCH occasion of the set of PUSCH occasions is invalid according to the second SSB configuration.
  13. 13 . The apparatus of claim 11 , wherein the one or more first PUSCH occasions are associated with no SSB conflict in accordance with the second SSB configuration, and wherein the one or more first PUSCH occasions remain invalid for the second SSB configuration in accordance with the SSB conflict associated with the first SSB configuration.
  14. 14 . The apparatus of claim 11 , wherein the one or more first PUSCH occasions are valid in accordance with the second SSB configuration.
  15. 15 . The apparatus of claim 11 , wherein the one or more second PUSCH occasions are valid in accordance with the first SSB configuration.
  16. 16 . The apparatus of claim 11 , wherein the at least one PUSCH transmission comprises small data transfer (SDT).
  17. 17 . The apparatus of claim 11 , wherein the processing system is further configured to cause the NE to send an indication of the first SSB configuration.
  18. 18 . The apparatus of claim 11 , wherein to send the dynamic update indicating the second SSB configuration, the processing system is configured to send the dynamic update indicating the second SSB configuration via at least one of an RRC release message, a dynamic grant in a new transmission, or a paging message.
  19. 19 . The apparatus of claim 11 , wherein the second SSB configuration comprises at least one of: at least one adjustment of a periodicity of SSB signals from the first SSB configuration, a non-uniform omission of at least one SSB burst of the first SSB configuration, an adjustment to a number of SSB signals within an SSB burst, an adjustment to a cellular discontinuous transmission (cell DTX) configuration of an SSB, an adjustment of at least one new SSB burst periodicity value, at least one new SSB burst, at least one new compact SSB burst, or adapting a position of SSBs within an SSB burst.
  20. 20 . A method for wireless communications by a user equipment (UE), comprising: obtaining a configuration indicating a set of physical uplink shared channel (PUSCH) occasions, wherein one or more first PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with a synchronization signal block (SSB) conflict associated with a first SSB configuration; obtaining a dynamic update indicating a second SSB configuration, wherein one or more second PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with the second SSB configuration; and sending at least one PUSCH transmission using at least one valid PUSCH occasion of the set of PUSCH occasions in accordance with the configuration.

Description

INTRODUCTION Field of the Disclosure Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for dynamic adaptation of a synchronization signal block (SSB). Description of Related Art Wireless communications systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts, or other similar types of services. These wireless communications systems may employ multiple-access technologies capable of supporting communications with multiple users by sharing available wireless communications system resources with those users. Although wireless communications systems have made great technological advancements over many years, challenges still exist. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and wireless receivers. Accordingly, there is a continuous desire to improve the technical performance of wireless communications systems, including, for example: improving speed and data carrying capacity of communications, improving efficiency of the use of shared communications mediums, reducing power used by transmitters and receivers while performing communications, improving reliability of wireless communications, avoiding redundant transmissions and/or receptions and related processing, improving the coverage area of wireless communications, increasing the number and types of devices that can access wireless communications systems, increasing the ability for different types of devices to intercommunicate, increasing the number and type of wireless communications mediums available for use, and the like. Consequently, there exists a need for further improvements in wireless communications systems to overcome the aforementioned technical challenges and others. SUMMARY One aspect provides a method for wireless communications by a user equipment (UE). The method includes obtaining a configuration indicating a set of physical uplink shared channel (PUSCH) occasions, wherein one or more first PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with a synchronization signal block (SSB) conflict associated with a first SSB configuration; obtaining a dynamic update indicating a second SSB configuration, wherein one or more second PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with the second SSB configuration; and sending at least one PUSCH transmission using at least one valid PUSCH occasion of the set of PUSCH occasions in accordance with the configuration. Another aspect provides a method for wireless communications by a network entity (NE). The method includes sending a configuration indicating a set of PUSCH occasions, wherein one or more first PUSCH occasions, of the set of PUSCH occasions, are invalid in accordance with a SSB conflict associated with a first SSB configuration; sending a dynamic update indicating a second SSB configuration, wherein one or more second PUSCH occasions, of the set of PUSCH occasions are invalid in accordance with the second SSB configuration; and obtaining at least one PUSCH transmission using at least one valid PUSCH occasion of the set of PUSCH occasions in accordance with the configuration. Other aspects provide: one or more apparatuses operable, configured, or otherwise adapted to perform any portion of any method described herein (e.g., such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses); one or more non-transitory, computer-readable media comprising instructions that, when executed by one or more processors of one or more apparatuses, cause the one or more apparatuses to perform any portion of any method described herein (e.g., such that instructions may be included in only one computer-readable medium or in a distributed fashion across multiple computer-readable media, such that instructions may be executed by only one processor or by multiple processors in a distributed fashion, such that each apparatus of the one or more apparatuses may include one processor or multiple processors, and/or such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses); one or more computer program products embodied on one or more computer-readable storage media comprising code for performing any portion of any method described herein (e.g., such that code may be stored in only one computer-readable medium or across computer-readable media in a distributed fashion); and/or one or more apparatuses comprising one or more means for performing any portion of any method described herein (e.g., such that performance would be by only one apparatus or by multiple apparatuses in a distributed fashion). By way of example, an apparatus may comprise a processing system, a device with a processing system, or processing systems cooperating over one or more networks. An apparatus may comprise