Channel scattering identifier for wireless networks

Patent metadata

Field	Value
Publication number	US-12513633-B2
Application number	US-202217945915-A
Country	US
Kind code	B2
Filing date	Sep 15, 2022
Priority date	Sep 15, 2022
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

Certain aspects of the present disclosure provide a method of wireless communications by a user equipment (UE), generally including detecting one or more synchronization signal blocks (SSBs) transmitted from a network entity, identifying a channel scattering type based on the detecting, and selecting one or more parameters for beam management, based on the identified channel scattering type.

First claim

What is claimed is:

1 . A method of wireless communications by a user equipment (UE), the method comprising:
detecting one or more synchronization signal blocks (SSBs) transmitted from a network entity; identifying a channel scattering type based on the detecting; and selecting one or more parameters for beam management, based on the identified channel scattering type, wherein the selecting the one or more parameters for beam management comprises selecting a number of SSBs for the UE to monitor.

2 . The method of claim 1 , wherein the detecting comprises:
determining a set of one or more SSBs with received signal strength above a threshold signal strength value; and counting a number of the one or more SSBs in the set.

3 . The method of claim 2 , wherein the identifying comprises identifying the channel scattering type based on the number of the one or more SSBs in the set being less than or equal to a threshold number of SSBs.

4 . The method of claim 2 , wherein the identifying comprises identifying the channel scattering type based on the number of the one or more SSBs in the set being greater than or equal to a threshold number of SSBs.

5 . The method of claim 2 , wherein the identifying comprises:
identifying a first channel scattering type based on the number of the one or more SSBs in the set being less than or equal to a first threshold number of SSBs; and identifying a second channel scattering type based on the number of the one or more SSBs in the set being greater than or equal to a second threshold number of SSBs, wherein the second threshold number of SSBs is greater than the first threshold number of SSBs by an offset value of one or more SSBs.

6 . The method of claim 1 , wherein the selecting further comprises selecting, based on the identified channel scattering type, a number of UE beams for the UE to monitor.

7 . The method of claim 6 , wherein the number of UE beams selected depends on a down sampling factor determined based on the identified channel scattering type.

8 . The method of claim 1 , wherein the selecting further comprises selecting, based on the identified channel scattering type, one or more filtering coefficients for beam management.

9 . The method of claim 1 , wherein the selecting further comprises selecting, based on the identified channel scattering type, at least one of: a time hysteresis parameter for beam switching or a power hysteresis parameter for beam switching.

10 . A user equipment (UE) configured for wireless communication, the UE comprising:
a memory comprising computer-executable instructions; and one or more processors configured to, individually or collectively, execute the computer-executable instructions and cause the UE to:
detect one or more synchronization signal blocks (SSBs) transmitted from a network entity;
identify a channel scattering type based on the detecting; and
select one or more parameters for beam management, based on the identified channel scattering type, wherein the selecting the one or more parameters for beam management comprises selecting a number of SSBs for the UE to monitor.

11 . The UE of claim 10 , wherein the one or more processors are configured to, individually or collectively, execute the computer-executable instructions and cause the UE to:
determine a set of one or more SSBs with received signal strength above a threshold signal strength value; and count a number of the one or more SSBs in the set.

12 . The UE of claim 11 , wherein the one or more processors are configured to, individually or collectively, execute the computer-executable instructions and cause the UE to identify the channel scattering type based on the number of the one or more SSBs in the set being less than or equal to a threshold number of SSBs.

13 . The UE of claim 11 , wherein the one or more processors are configured to, individually or collectively, execute the computer-executable instructions and cause the UE to identify the channel scattering type based on the number of the one or more SSBs in the set being greater than or equal to a threshold number of SSBs.

14 . The UE of claim 11 , wherein the one or more processors are configured to, individually or collectively, execute the computer-executable instructions and cause the UE to:
identify a first channel scattering type based on the number of the one or more SSBs in the set being less than or equal to a first threshold number of SSBs; and identify a second channel scattering type based on the number of the one or more SSBs in the set being greater than or equal to a second threshold number of SSBs, wherein the second threshold number of SSBs is greater than the first threshold number of SSBs by an offset value of one or more SSBs.

15 . The UE of claim 10 , wherein the one or more processors are configured to, individually or collectively, execute the computer-executable instructions cause the UE to select, based on the identified channel scattering type, a number of UE beams for the UE to monitor.

16 . The UE of claim 15 , wherein the number of UE beams selected depends on a down sampling factor determined based on the identified channel scattering type.

17 . The UE of claim 10 , wherein the one or more processors are configured to, individually or collectively, execute the computer-executable instructions and cause the UE to select, based on the identified channel scattering type, one or more filtering coefficients for beam management.

18 . The UE of claim 10 , wherein the one or more processors are configured to, individually or collectively, execute the computer-executable instructions and cause the UE to select, based on the identified channel scattering type, at least one of: a time hysteresis parameter or a power hysteresis parameter for beam switching.

19 . An apparatus for wireless communications by a user equipment (UE), comprising:
means for detecting one or more synchronization signal blocks (SSBs) transmitted from a network entity; means for identifying a channel scattering type based on the detecting; and means for selecting one or more parameters for beam management, based on the identified channel scattering type, wherein the selecting the one or more parameters for beam management comprises selecting a number of SSBs for the UE to monitor.

20 . A computer readable medium having instructions stored thereon that, when executed by one or more processors of a user equipment (UE), cause the UE to:
detect one or more synchronization signal blocks (SSBs) transmitted from a network entity; identify a channel scattering type based on the detecting; and select one or more parameters for beam management, based on the identified channel scattering type, wherein the selecting the one or more parameters for beam management comprises selecting a number of SSBs for the UE to monitor.

Assignees

• Qualcomm Inc

Inventors

• Zhu Jun
• Laghate Mihir Vijay
• Challa Raghu Narayan

Classifications

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title

• H04L25/0204

  of multiple channels · CPC title

• H04W56/001 Primary

  Synchronization between nodes · CPC title