IP Library › Granted Patent US 12,464,474
Granted Patent B2
US 12,464,474 · App. 17/820,490 · Granted Nov 4, 2025

Transmit power control in full-duplex wireless communication

Inventors: Ahmed Attia Abotabl (San Diego, CA); Muhammad Sayed Khairy Abdelghaffar (San Jose, CA); Abdelrahman Mohamed Ahmed Mohamed Ibrahim (San Diego, CA); Gokul Sridharan (Sunnyvale, CA)
Assignee: QUALCOMM Incorporated
H04W52/18H04W52/146H04L5/14
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Quick Facts
Patent No.
US 12,464,474
App. No.
17/820,490
Granted
Nov 4, 2025
Kind
B2
Abstract

In a wireless communication network, a user equipment (UE) determined a power control adjustment state (PCAS) for a transmission occasion based on a duplex mode of the transmission occasion by one or more of: using a PCAS function specific to the duplex mode of the transmission occasion; using a separate set of PCAS index values for each duplex communication mode; accumulating transmit power control (TPC) command values for half-duplex transmission occasions separately from accumulating TPC command values for full-duplex transmission occasions; interpreting a TPC command based on the duplex mode for the transmission occasion; and determining one of an accumulated PCAS and an absolute PCAS based on one of: i) an accumulated/absolute configuration of the half-duplex mode communication mode of the network device, ii) a radio resource control full-duplex mode communication mode accumulated/absolute parameter of the network device, and iii) a network device-configured full-duplex mode communication mode accumulated/absolute parameter.

Claims (62)

1 . A method for uplink power control, comprising:

determining, by a network device capable of both half-duplex mode communication and full-duplex mode communication, a power control adjustment state (PCAS) for a particular transmission occasion based on a duplex mode of the particular transmission occasion; and

transmitting, by the device in uplink during the particular transmission occasion, with a transmission power based on the determined PCAS.

2 . The method of claim 1 , wherein determining comprises determining the PCAS using a PCAS function specific to the duplex mode of the particular transmission occasion.

3 . The method of claim 1 , wherein:

the PCAS is a function of an index l and l is a value from a plurality of sets of PCAS index values; and

the sets of PCAS index values comprise a separate set of PCAS index values for each duplex communication mode.

4 . The method of claim 1 , wherein determining a PCAS comprises accumulating transmit power control (TPC) command values for half-duplex transmission occasions separately from accumulating TPC command values for full-duplex transmission occasions.

5 . The method of claim 4 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values only during one or more transmission occasions of a same duplex mode as the given transmission occasion.

6 . The method of claim 4 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values as indicated by a network in which the device operates.

7 . The method of claim 1 , wherein determining a PCAS comprises interpreting a transmit power control (TPC) command based on the duplex mode for the transmission occasion.

8 . The method of claim 1 , wherein determining a PCAS for a full-duplex transmission occasion comprises determining one of an accumulated PCAS and an absolute PCAS based on one of:

i) an accumulated/absolute configuration of the half-duplex mode communication mode of the network device,

ii) a radio resource control (RRC) full-duplex mode communication mode accumulated/absolute parameter of the network device, and

iii) a network device-configured full-duplex mode communication mode accumulated/absolute parameter.

9 . An apparatus for wireless communication, comprising:

a memory; and

at least one processor coupled to the memory, the memory including instructions executable by the at least one processor to cause the apparatus to:

determine, by the apparatus capable of both half-duplex mode communication and full-duplex mode communication, a power control adjustment state (PCAS) for a particular transmission occasion based on a duplex mode of the particular transmission occasion; and

transmit, by the apparatus in uplink during the particular transmission occasion, with a transmission power based on the determined PCAS.

10 . The apparatus of claim 9 , wherein determining comprises determining the PCAS using a PCAS function specific to the duplex mode of the particular transmission occasion.

11 . The apparatus of claim 9 , wherein:

the PCAS is a function of an index l and l is a value from a plurality of sets of PCAS index values; and

the sets of PCAS index values comprise a separate set of PCAS index values for each duplex communication mode.

12 . The apparatus of claim 9 , wherein determining a PCAS comprises accumulating transmit power control (TPC) command values for half-duplex transmission occasions separately from accumulating TPC command values for full-duplex transmission occasions.

13 . The apparatus of claim 12 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values only during one or more transmission occasions of a same duplex mode as the given transmission occasion.

14 . The apparatus of claim 12 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values as indicated by a network in which the apparatus operates.

15 . The apparatus of claim 9 , wherein determining a PCAS comprises interpreting a transmit power control (TPC) command based on the duplex mode for the transmission occasion.

16 . The apparatus of claim 9 , wherein determining a PCAS for a full-duplex transmission occasion comprises determining one of an accumulated PCAS and an absolute PCAS based on one of:

i) an accumulated/absolute configuration of the half-duplex mode communication mode of the apparatus,

ii) a radio resource control (RRC) full-duplex mode communication mode accumulated/absolute parameter of the apparatus, and

iii) an apparatus configured full-duplex mode communication mode accumulated/absolute parameter.

17 . A non-transitory computer-readable medium storing processor-executable code, the code when read and executed by at least one processor of user equipment (UE), causes the UE to:

determine, by the UE capable of both half-duplex mode communication and full-duplex mode communication, a power control adjustment state (PCAS) for a particular transmission occasion based on a duplex mode of the particular transmission occasion; and

transmit, by the UE in uplink during the particular transmission occasion, with a transmission power based on the determined PCAS.

18 . The computer-readable medium of claim 17 , wherein determining comprises determining the PCAS using a PCAS function specific to the duplex mode of the particular transmission occasion.

19 . The computer-readable medium of claim 17 , wherein:

the PCAS is a function of an index l and l is a value from a plurality of sets of PCAS index values; and

the sets of PCAS index values comprise a separate set of PCAS index values for each duplex communication mode.

20 . The computer-readable medium of claim 17 , wherein determining a PCAS comprises accumulating transmit power control (TPC) command values for half-duplex transmission occasions separately from accumulating TPC command values for full-duplex transmission occasions.

21 . The computer-readable medium of claim 20 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values only during one or more transmission occasions of a same duplex mode as the given transmission occasion.

22 . The computer-readable medium of claim 20 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values as indicated by a network in which the UE operates.

23 . The computer-readable medium of claim 17 , wherein determining a PCAS comprises interpreting a transmit power control (TPC) command based on the duplex mode for the transmission occasion.

24 . The computer-readable medium of claim 17 , wherein determining a PCAS for a full-duplex transmission occasion comprises determining one of an accumulated PCAS and an absolute PCAS based on one of:

i) an accumulated/absolute configuration of the half-duplex mode communication mode of the UE,

ii) a radio resource control (RRC) full-duplex mode communication mode accumulated/absolute parameter of the UE, and

iii) a UE-configured full-duplex mode communication mode accumulated/absolute parameter.

25 . An apparatus for wireless communications, comprising:

means for determining, by a network device capable of both half-duplex mode communication and full-duplex mode communication, a power control adjustment state (PCAS) for a particular transmission occasion based on a duplex mode of the particular transmission occasion; and

means for transmitting, by the device in uplink during the particular transmission occasion, with a transmission power based on the determined PCAS.

26 . The apparatus of claim 25 , wherein determining comprises determining the PCAS using a PCAS function specific to the duplex mode of the particular transmission occasion.

27 . The apparatus of claim 25 , wherein:

the PCAS is a function of an index l and l is a value from a plurality of sets of PCAS index values; and

the sets of PCAS index values comprise a separate set of PCAS index values for each duplex communication mode.

28 . The apparatus of claim 25 , wherein determining a PCAS comprises accumulating transmit power control (TPC) command values for half-duplex transmission occasions separately from accumulating TPC command values for full-duplex transmission occasions.

29 . The apparatus of claim 28 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values only during one or more transmission occasions of a same duplex mode as the given transmission occasion.

30 . The apparatus of claim 28 , wherein accumulating TPC command values for a given transmission occasion comprises accumulating TPC command values as indicated by a network in which the network device operates.

31 . The apparatus of claim 25 , wherein determining a PCAS comprises interpreting a transmit power control (TPC) command based on the duplex mode for the transmission occasion.

32 . The apparatus of claim 25 , wherein determining a PCAS for a full-duplex transmission occasion comprises determining one of an accumulated PCAS and an absolute PCAS based on one of:

i) an accumulated/absolute configuration of the half-duplex mode communication mode of the network device,

ii) a radio resource control (RRC) full-duplex mode communication mode accumulated/absolute parameter of the network device, and

iii) a network device-configured full-duplex mode communication mode accumulated/absolute parameter.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2022
From: ABOTABL, AHMED ATTIA; ABDELGHAFFAR, MUHAMMAD SAYED KHAIRY; IBRAHIM, ABDELRAHMAN MOHAMED AHMED MOHAMED; SRIDHARAN, GOKUL
To: QUALCOMM INCORPORATED
Reel/Frame 061352/0220 →
Continuity (1)
Related Publication 20240064654A1 · Feb 22, 2024
References Cited (4)
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US 10044491B2 · Hsu · 2018 [cited by examiner]
US 10779241B2 · Zhang · 2020 [cited by examiner]
US 12101180B2 · Ioffe · 2024 [cited by examiner]