IP Library › Granted Patent US 12713351

Granted Patent B2

US 12713351 · App. 17/653,415 · Granted Aug 18, 2026

Early indication of network power saving mode

Inventors: Ahmed Attia Abotabl (San Diego, CA); Hung Dinh Ly (San Diego, CA); Wanshi Chen (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W52/0235 H04W56/001 H04W74/0841

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Quick Facts

Patent No.: US 12713351
App. No.: 17/653,415
Granted: Aug 18, 2026
Kind: B2

External Links

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Abstract

Apparatus, methods, and computer-readable media for facilitating an early indication of a power saving mode are disclosed herein. The early indication of the power saving mode may enable a receiver to adapt to the operation of a network according to the indicated power saving mode. In some examples, a transmitter may provide the early indication via an SSB. For example, the transmitter may select a synchronization signal that maps to a power saving mode. In some examples, a transmitter may provide the early indication via a message of a random access procedure. The receiver receiving the early indication may apply configurations or behavior to communicate based on the indicated power saving mode.

Claims (84)

1 . An apparatus for wireless communication at a receiver, comprising:

memory; and

one or more processors coupled to the memory, the one or more processors configured to:

receive, from a transmitter, a synchronization signal block (SSB) that indicates a power saving mode of the transmitter is active, wherein the power saving mode is one of multiple power saving modes, and each of the multiple power saving modes is associated with a different seed for at least one of a primary synchronization signal (PSS) sequence or a secondary synchronization signal (SSS) sequence in the SSB; and

communicate with the transmitter based on the power saving mode indicated by the SSB.

2 . The apparatus of claim 1 , wherein at least one of the PSS sequence or the SSS sequence in the SSB indicates the power saving mode is active.

3 . The apparatus of claim 1 , wherein the SSB further comprises a physical broadcast channel (PBCH) that indicates that the power saving mode is active.

4 . The apparatus of claim 3 , wherein the PBCH includes a field that indicates an active power saving mode.

5 . The apparatus of claim 3 , wherein the PBCH further indicates a transition to a different power saving mode.

6 . The apparatus of claim 1 , wherein the receiver comprises a first user equipment (UE), and the transmitter comprises a network node or a second UE, the apparatus further comprising:

at least one antenna.

7 . The apparatus of claim 1 , wherein the transmitter is a network entity, and the power saving mode is a network power saving mode.

8 . The apparatus of claim 1 , wherein the transmitter is a user equipment (UE).

9 . An apparatus for wireless communication at a receiver, comprising:

memory; and

one or more processors coupled to the memory, the one or more processors configured to:

receive, from a transmitter, a synchronization signal block (SSB) that indicates a power saving mode of the transmitter is active, wherein the power saving mode is one of multiple power saving modes, and each of the multiple power saving modes is associated with one or more of a different time domain resource or a different frequency domain resource of the SSB; and

communicate with the transmitter based on the power saving mode indicated by the SSB.

10 . The apparatus of claim 9 , wherein at least one of a time domain resource or a frequency domain resource of the SSB indicates the power saving mode is active.

11 . The apparatus of claim 9 , wherein:

the transmitter is a network entity, and the power saving mode is a network power saving mode, or

the transmitter is a user equipment (UE).

12 . An apparatus for wireless communication at a transmitter, comprising:

memory; and

one or more processors coupled to the memory, the one or more processors configured to:

activate a power saving mode of the transmitter; and

output a synchronization signal block (SSB) that indicates the power saving mode of the transmitter is active, wherein the power saving mode is one of multiple power saving modes, and each of the multiple power saving modes is associated with a different seed for at least one of a primary synchronization signal (PSS) sequence or a secondary synchronization signal (SSS) sequence in the SSB.

13 . The apparatus of claim 12 , wherein at least one of the PSS sequence or the SSS sequence in the SSB indicates the power saving mode is active.

14 . The apparatus of claim 12 , wherein the SSB further comprises a physical broadcast channel (PBCH) that indicates that the power saving mode is active.

15 . The apparatus of claim 14 , wherein the PBCH includes a field that indicates an active power saving mode.

16 . The apparatus of claim 14 , wherein the PBCH further indicates a transition to a different power saving mode.

17 . The apparatus of claim 12 , wherein the transmitter comprises a network node or a user equipment (UE), the apparatus further comprising:

at least one antenna.

18 . The apparatus of claim 12 , wherein the transmitter is a network entity, and the power saving mode is a network power saving mode.

19 . The apparatus of claim 12 , wherein the transmitter is a user equipment (UE).

20 . An apparatus for wireless communication at a transmitter, comprising:

memory; and

one or more processors coupled to the memory, the one or more processors configured to:

activate a power saving mode of the transmitter; and

output a synchronization signal block (SSB) that indicates the power saving mode of the transmitter is active, wherein the power saving mode is one of multiple power saving modes, and wherein each of the multiple power saving modes is associated with one or more of a different time domain resource or a different frequency domain resource of the SSB.

21 . The apparatus of claim 20 , wherein at least one of a time domain resource or a frequency domain resource of the SSB indicates the power saving mode is active.

22 . The apparatus of claim 20 , wherein:

the transmitter is a network entity, and the power saving mode is a network power saving mode, or

the transmitter is a user equipment (UE).

23 . An apparatus for wireless communication at a receiver, comprising:

memory; and

one or more processors coupled to the memory, the one or more processors configured to:

transmit a first random access message that includes a preamble;

receive, from a transmitter, a second random access message that indicates a power saving mode of the transmitter is active, wherein the second random access message indicates a set of multiple power saving modes that includes an active power saving mode, and wherein the set of multiple power saving modes includes a shared power saving mode parameter; and

communicate with the transmitter based on the power saving mode indicated by the second random access message.

24 . The apparatus of claim 23 , wherein the second random access message comprises a Msg 4 in a four-step random access procedure or a MsgB in a two-step random access procedure.

25 . The apparatus of claim 23 , wherein the receiver comprises a first user equipment (UE), and the transmitter comprises a network node or a second UE, the apparatus further comprising:

at least one antenna.

26 . The apparatus of claim 23 , wherein the transmitter is a network entity, and the power saving mode is a network power saving mode.

27 . The apparatus of claim 23 , wherein the transmitter is a user equipment (UE).

28 . An apparatus for wireless communication at a transmitter, comprising:

memory; and

one or more processors coupled to the memory, the one or more processors configured to:

obtain a first random access message that includes a preamble; and

output a second random access message that indicates a power saving mode of the transmitter is active, wherein the second random access message indicates a set of multiple power saving modes that includes an active power saving mode, and wherein the set of multiple power saving modes includes a shared power saving mode parameter.

29 . The apparatus of claim 28 , wherein the second random access message comprises a Msg 4 in a four-step random access procedure or a MsgB in a two-step random access procedure.

30 . The apparatus of claim 28 , wherein the transmitter comprises a network node or a user equipment (UE), the apparatus further comprising:

at least one antenna.

31 . The apparatus of claim 28 , wherein the transmitter is a network entity, and the power saving mode is a network power saving mode.

32 . The apparatus of claim 28 , wherein the transmitter is a user equipment (UE).

33 . A method for wireless communication at a receiver, comprising:

receiving, from a transmitter, a synchronization signal block (SSB) indicating a power saving mode of the transmitter is active, the power saving mode being one of multiple power saving modes, and each of the multiple power saving modes being associated with a different seed for at least one of a primary synchronization signal (PSS) sequence or a secondary synchronization signal (SSS) sequence in the SSB; and

communicating with the transmitter based on the power saving mode indicated by the SSB.

34 . A method for wireless communication at a receiver, comprising:

receiving, from a transmitter, a synchronization signal block (SSB) indicating a power saving mode of the transmitter is active, the power saving mode being one of multiple power saving modes, and each of the multiple power saving modes being associated with one or more of a different time domain resource or a different frequency domain resource of the SSB; and

communicating with the transmitter based on the power saving mode indicated by the SSB.

35 . A method for wireless communication at a transmitter, comprising:

activating a power saving mode of the transmitter; and

outputting a synchronization signal block (SSB) indicating the power saving mode of the transmitter is active, the power saving mode being one of multiple power saving modes, and each of the multiple power saving modes being associated with a different seed for at least one of a primary synchronization signal (PSS) sequence or a secondary synchronization signal (SSS) sequence in the SSB.

36 . A method for wireless communication at a transmitter, comprising:

activating a power saving mode of the transmitter; and

outputting a synchronization signal block (SSB) indicating the power saving mode of the transmitter is active, the power saving mode being one of multiple power saving modes, and each of the multiple power saving modes being associated with one or more of a different time domain resource or a different frequency domain resource of the SSB.

37 . A method for wireless communication at a receiver, comprising:

transmitting a first random access message including a preamble;

receiving, from a transmitter, a second random access message indicating a power saving mode of the transmitter is active, the second random access message further indicating a set of multiple power saving modes including an active power saving mode, the set of multiple power saving modes including a shared power saving mode parameter; and

communicating with the transmitter based on the power saving mode indicated by the second random access message.

38 . A method for wireless communication at a transmitter, comprising:

obtaining a first random access message including a preamble; and

outputting a second random access message indicating a power saving mode of the transmitter is active, the second random access message indicating a set of multiple power saving modes including an active power saving mode, the set of multiple power saving modes including a shared power saving mode parameter.