IP Library › Granted Patent US 11,419,170
Granted Patent B2
US 11,419,170 · App. 16/828,440 · Granted Aug 16, 2022

Radio access technology ping-pong reselection and registration avoidance

Inventors: Tom Chin (San Diego, CA); Ozcan Ozturk (San Diego, CA); Xipeng Zhu (San Diego, CA); Shanshan Wang (San Diego, CA); Ajith Tom Payyappilly (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W76/15H04W36/0055H04W76/27
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Quick Facts
Patent No.
US 11,419,170
App. No.
16/828,440
Granted
Aug 16, 2022
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network device may determine that a ping-pong condition is satisfied with regard to a Long Term Evolution (LTE) radio access technology (RAT) and a New Radio (NR) RAT. The network device may configure a dual connectivity mode for the UE based at least in part on the ping-pong condition being satisfied. The network device may cause the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied. Numerous other aspects are provided.

Claims (78)

1. A method of wireless communication performed by a network device, comprising:

determining that a ping-pong condition is satisfied with regard to a Long Term Evolution (LTE) radio access technology (RAT) and a New Radio (NR) RAT,

wherein the ping-pong condition is satisfied for a user equipment (UE),

wherein the ping-pong condition is satisfied based at least in part on a counter value satisfying a threshold, and

wherein the counter value is based at least in part on an occurrence of a switch between the NR RAT and the LTE RAT; and

configuring a dual connectivity mode for the UE based at least in part on the ping-pong condition being satisfied; or

causing the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied.

2. The method of claim 1 , wherein configuring the dual connectivity mode further comprises:

transmitting a radio resource control message to the UE that includes configuration information for the dual connectivity mode.

3. The method of claim 1 , wherein the dual connectivity mode comprises an E-UTRAN-NR dual connectivity (EN-DC) mode.

4. The method of claim 1 , wherein configuring the dual connectivity mode further comprises:

switching the UE from a standalone mode on the NR RAT to a non-standalone mode on the NR RAT and the LTE RAT.

5. The method of claim 1 , wherein the network device is associated with the LTE RAT.

6. The method of claim 1 , wherein the network device is associated with the NR RAT.

7. The method of claim 1 , wherein configuring the dual connectivity mode further comprises:

configuring a base station associated with the NR RAT as a secondary node of the UE.

8. The method of claim 1 , wherein the network device is associated with a role associated with a primary node, and wherein configuring the dual connectivity mode further comprises:

requesting that the UE perform a role switch of the network device to a role associated with a secondary node.

9. The method of claim 1 , wherein causing the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied further comprises:

transmitting a radio resource control release message indicating to deprioritize the NR RAT.

10. The method of claim 1 , wherein configuring the dual connectivity mode further comprises:

requesting that the UE enter the dual connectivity mode.

11. A network device for wireless communication, comprising:

a memory; and

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

determine that a ping-pong condition is satisfied with regard to a Long Term Evolution (LTE) radio access technology (RAT) and a New Radio (NR) RAT,

wherein the ping-pong condition is satisfied for a user equipment (UE),

wherein the ping-pong condition is satisfied based at least in part on a counter value satisfying a threshold, and

wherein the counter value is based at least in part on an occurrence of a switch between the NR RAT and the LTE RAT; and

configure a dual connectivity mode for the UE based at least in part on the ping-pong condition being satisfied; or

cause the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied.

12. The network device of claim 11 , wherein the one or more processors, when configuring the dual connectivity mode, are further configured to:

transmit a radio resource control message to the UE that includes configuration information for the dual connectivity mode.

13. The network device of claim 11 , wherein the dual connectivity mode comprises an E-UTRAN-NR dual connectivity (EN-DC) mode.

14. The network device of claim 11 , wherein the one or more processors, when configuring the dual connectivity mode, are further configured to:

switch the UE from a standalone mode on the NR RAT to a non-standalone mode on the NR RAT and the LTE RAT.

15. The network device of claim 11 , wherein the network device is associated with the LTE RAT.

16. The network device of claim 11 , wherein the network device is associated with the NR RAT.

17. The network device of claim 11 , wherein the one or more processors, when configuring the dual connectivity mode, are further configured to:

configure a base station associated with the NR RAT as a secondary node of the UE.

18. The network device of claim 11 ,

wherein the network device is associated with a role associated with a primary node, and

wherein the one or more processors, when configuring the dual connectivity mode, are further configured to:

request that the UE perform a role switch of the network device to a role associated with a secondary node.

19. The network device of claim 11 , wherein the one or more processors, when causing the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied, are further configured to:

transmit a radio resource control release message indicating to deprioritize the NR RAT.

20. The network device of claim 11 , wherein the one or more processors, when configuring the dual connectivity mode, are further configured to:

request that the UE enter the dual connectivity mode.

21. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a network device, cause the network device to:

determine that a ping-pong condition is satisfied with regard to a Long Term Evolution (LTE) radio access technology (RAT) and a New Radio (NR) RAT,

wherein the ping-pong condition is satisfied for a user equipment (UE),

wherein the ping-pong condition is satisfied based at least in part on a counter value satisfying a threshold, and

wherein the counter value is based at least in part on an occurrence of a switch between the NR RAT and the LTE RAT; and

configure a dual connectivity mode for the UE based at least in part on the ping-pong condition being satisfied; or

cause the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied.

22. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions, that cause the network device to configure the dual connectivity mode, cause the network device to:

transmit a radio resource control message to the UE that includes configuration information for the dual connectivity mode.

23. The non-transitory computer-readable medium of claim 21 , wherein the dual connectivity mode comprises an E-UTRAN-NR dual connectivity (EN-DC) mode.

24. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions, that cause the network device to configure the dual connectivity mode, cause the network device to:

switch the UE from a standalone mode on the NR RAT to a non-standalone mode on the NR RAT and the LTE RAT.

25. The non-transitory computer-readable medium of claim 21 , wherein the network device is associated with the LTE RAT.

26. The non-transitory computer-readable medium of claim 21 , wherein the network device is associated with the NR RAT.

27. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions, that cause the network device to configure the dual connectivity mode, cause the network device to:

configure a base station associated with the NR RAT as a secondary node of the UE.

28. The non-transitory computer-readable medium of claim 21 , wherein the network device is associated with a role associated with a primary node, and wherein configuring the dual connectivity mode further comprises:

request that the UE perform a role switch of the network device to a role associated with a secondary node.

29. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions, that cause the network device to cause the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied, cause the network device to:

transmit a radio resource control release message indicating to deprioritize the NR RAT.

30. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions, that cause the network device to configure the dual connectivity mode, cause the network device to:

request that the UE enter the dual connectivity mode.

31. An apparatus for wireless communication, comprising:

means for determining that a ping-pong condition is satisfied with regard to a Long Term Evolution (LTE) radio access technology (RAT) and a New Radio (NR) RAT,

wherein the ping-pong condition is satisfied for a user equipment (UE),

wherein the ping-pong condition is satisfied based at least in part on a counter value satisfying a threshold, and

wherein the counter value is based at least in part on an occurrence of a switch between the NR RAT and the LTE RAT; and

means for configuring a dual connectivity mode for the UE based at least in part on the ping-pong condition being satisfied; or

means for causing the UE to deprioritize the NR RAT based at least in part on the ping-pong condition being satisfied.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2020
From: CHIN, TOM; OZTURK, OZCAN; ZHU, XIPENG; WANG, SHANSHAN; PAYYAPPILLY, AJITH TOM
To: QUALCOMM INCORPORATED
Reel/Frame 054740/0607 →
Continuity (2)
Provisional Application 62828312 · Apr 2, 2019
Related Publication 20200323005A1 · Oct 8, 2020