IP Library › Granted Patent US 12,418,841
Granted Patent B2
US 12,418,841 · App. 18/029,266 · Granted Sep 16, 2025

Configuration method and apparatus for conditional PSCell change in dual connectivity, storage medium, base station, and terminal

Inventor: Yun Deng (Shanghai, CN)
Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
H04W36/0069H04W36/00692H04W36/00837
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Quick Facts
Patent No.
US 12,418,841
App. No.
18/029,266
Granted
Sep 16, 2025
Kind
B2
Abstract

A configuration method and apparatus for Conditional Primary Secondary Cell Group Cell (PSCell) Change (CPC) in dual connectivity, a storage medium, a base station, and a terminal are provided. The method includes: for configuring the CPC for a User Equipment (UE), determining whether a configuration threshold has been received from a master base station, wherein the configuration threshold is a number threshold of CPCs configurable by a secondary base station; and determining a number of the CPCs configurable by the secondary base station based on the number threshold, in response to the configuration threshold having been received from the master base station, wherein the number of the CPCs configurable by the secondary base station is less than or equal to the configuration threshold.

Claims (40)

1. A configuration method for Conditional Primary Secondary Cell Group Cell (PSCell) Change (CPC) in dual connectivity, comprising:

for configuring the CPC for a User Equipment (UE), determining whether a configuration threshold has been received from a master base station, wherein the configuration threshold is a number threshold of CPCs configurable by a secondary base station; and

determining a number of CPCs configurable by the secondary base station based on the number threshold, in response to the configuration threshold having been received from the master base station, wherein the number of the CPCs configurable by the secondary base station is less than or equal to the configuration threshold.

2. The method according to claim 1 , wherein the configuration threshold is the number threshold of CPCs without master base station involvement and/or the number threshold of CPCs with master base station involvement.

3. The method according to claim 1 , further comprising:

receiving the configuration threshold from the master base station through a secondary base station addition request or a secondary base station modification request.

4. The method according to claim 1 , wherein following determining whether a configuration threshold has been received from a master base station, the method further comprises:

determining a maximum number of CPCs configurable by the secondary base station based on a first preset threshold, in response to the configuration threshold having not been received from the master base station.

5. The method according to claim 1 , further comprising:

transmitting a CPC number threshold configuration request or a CPC number threshold modification request to the master base station, to make the master base station transmit the configuration threshold to the secondary base station or update the configuration threshold.

6. The method according to claim 2 , further comprising:

receiving the configuration threshold from the master base station through a secondary base station addition request or a secondary base station modification request.

7. The method according to claim 2 , wherein following determining whether a configuration threshold has been received from a master base station, the method further comprises:

determining a maximum number of CPCs configurable by the secondary base station based on a first preset threshold, in response to the configuration threshold having not been received from the master base station.

8. The method according to claim 2 , further comprising:

transmitting a CPC number threshold configuration request or a CPC number threshold modification request to the master base station, to make the master base station transmit the configuration threshold to the secondary base station or update the configuration threshold.

9. A configuration method for Conditional Primary Secondary Cell Group Cell (PSCell) Change (CPC) in dual connectivity, comprising:

transmitting a configuration threshold to a secondary base station, to make the secondary base station determine a number of CPCs configurable by the secondary base station based on the configuration threshold while configuring the CPC for a User Equipment (UE);

wherein the configuration threshold is a number threshold of CPCs configurable by the secondary base station, and the number of the CPCs configurable by the secondary base station is less than or equal to the configuration threshold.

10. The method according to claim 9 , wherein the configuration threshold is the number threshold of CPCs without master base station involvement and/or the number threshold of CPCs with master base station involvement.

11. The method according to claim 9 , further comprising:

transmitting the configuration threshold to the secondary base station through a secondary base station addition request or a secondary base station modification request.

12. The method according to claim 9 , further comprising:

receiving a CPC number threshold configuration request or a CPC number threshold modification request from the secondary base station and transmitting the configuration threshold to the secondary base station or updating the configuration threshold.

13. The method according to claim 10 , further comprising:

transmitting the configuration threshold to the secondary base station through a secondary base station addition request or a secondary base station modification request.

14. The method according to claim 10 , further comprising:

receiving a CPC number threshold configuration request or a CPC number threshold modification request from the secondary base station and transmitting the configuration threshold to the secondary base station or updating the configuration threshold.

15. A base station comprising a memory and a processor, wherein the memory stores one or more programs, the one or more programs comprising computer instructions, which, when executed by the processor, cause the processor to:

transmit a configuration threshold to a secondary base station, to make the secondary base station determine a number of Conditional Primary Secondary Cell Group Cell (PSCell) Changes (CPCs) configurable by the secondary base station based on the configuration threshold while configuring the CPC for a User Equipment (UE);

wherein the configuration threshold is a number threshold of CPCs configurable by the secondary base station, and the number of the CPCs configurable by the secondary base station is less than or equal to the configuration threshold.

16. The base station according to claim 15 , wherein the configuration threshold is the number threshold of CPCs without master base station involvement and/or the number threshold of CPCs with master base station involvement.

17. The base station according to claim 15 , wherein the processor is further caused to:

transmit the configuration threshold to the secondary base station through a secondary base station addition request or a secondary base station modification request.

18. The base station according to claim 15 , wherein the processor is further caused to:

receive a CPC number threshold configuration request or a CPC number threshold modification request from the secondary base station and transmit the configuration threshold to the secondary base station or updating the configuration threshold.

19. The base station according to claim 16 , wherein the processor is further caused to:

transmit the configuration threshold to the secondary base station through a secondary base station addition request or a secondary base station modification request.

20. The base station according to claim 16 , wherein the processor is further caused to:

receive a CPC number threshold configuration request or a CPC number threshold modification request from the secondary base station and transmit the configuration threshold to the secondary base station or updating the configuration threshold.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2023
From: DENG, YUN
To: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
Reel/Frame 063312/0183 →
Priority Claims (1)
CN 202011050152.4 · Sep 29, 2020 · national
Continuity (1)
Related Publication 20230370909A1 · Nov 16, 2023
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