Load balancing inter-frequency measurement activities for dual network link scenarios

Patent metadata

Field	Value
Publication number	US-11877335-B2
Application number	US-202217937223-A
Country	US
Kind code	B2
Filing date	Sep 30, 2022
Priority date	Dec 16, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

In a dual network link scenario, a wireless network may provide a user equipment (UE) with a measurement configuration indicating multiple inter-frequency measurement objects during an off duration of a discontinuous reception (DRX) cycle configured on a first network link. The UE may assign the inter-frequency measurement objects to a second network link if the second network link has an always-on configuration. Alternatively, if the second network link has a DRX configuration, the UE may perform some inter-frequency measurement activities on the first network link and assign some inter-frequency measurement objects to unoccupied gap occasions in the off duration for the DRX cycle configured on the second network link. In this way, the UE may save power by spending more time in a low power state, and mobility performance for the UE may be improved by increasing the efficiency and reliability of inter-frequency measurement activities.

First claim

What is claimed is:

1. A method of wireless communication performed by a user equipment (UE), comprising:
receiving a measurement configuration indicating multiple inter-frequency measurement objects on a first network link associated with a first discontinuous reception (DRX) cycle;
assigning, to a second network link, one or more inter-frequency measurement objects, among the multiple inter-frequency measurement objects, that are scheduled during an off duration of the first DRX cycle; and
operating one or more components associated with the first network link in accordance with the off duration of the first DRX cycle during a portion of the off duration of the first DRX cycle in which the one or more inter-frequency measurement objects are scheduled,
wherein the portion of the off duration of the first DRX cycle in which the one or more inter-frequency measurement objects are scheduled overlaps with an off duration of a second DRX cycle associated with the second network link.

2. The method of claim 1 , further comprising:
operating one or more common components that are shared by the first network link and the second network link in accordance with the off duration of the first DRX cycle during the portion of the off duration of the first DRX cycle associated with the first network link that overlaps with the off duration of the second DRX cycle associated with the second network link.

3. The method of claim 1 , wherein the one or more inter-frequency measurement objects assigned to the second network link are associated with one or more frequencies that are different from one or more frequencies associated with one or more inter-frequency measurement objects assigned to the first network link.

4. The method of claim 1 , wherein the one or more inter-frequency measurement objects are assigned to unoccupied gap occasions on the second network link.

5. The method of claim 1 , further comprising:
performing, using one or more components associated with the second network link, one or more inter-frequency measurement activities for the one or more inter-frequency measurement objects assigned to the second network link; and
transmitting, via the first network link, a measurement report including one or more inter-frequency measurements that are based at least in part on the one or more inter-frequency measurement activities performed using the one or more components associated with the second network link.

6. The method of claim 1 , wherein the first network link and the second network link are associated with different cell groups configured in a dual connectivity mode.

7. The method of claim 1 , wherein the first network link and the second network link are associated with different subscriber identity modules.

8. The method of claim 1 , wherein, after assignment of the one or more inter-frequency measurement objects to the second network link, the multiple inter-frequency measurement objects are evenly distributed between the first network link and the second network link.

9. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
receive a measurement configuration indicating multiple inter-frequency measurement objects on a first network link associated with a first discontinuous reception (DRX) cycle;
assign, to a second network link, one or more inter-frequency measurement objects, among the multiple inter-frequency measurement objects, that are scheduled during an off duration of the first DRX cycle; and
operate one or more components associated with the first network link in accordance with the off duration of the first DRX cycle during a portion of the off duration of the first DRX cycle in which the one or more inter-frequency measurement objects are scheduled,
wherein the portion of the off duration of the first DRX cycle in which the one or more inter-frequency measurement objects are scheduled overlaps with an off duration of a second DRX cycle associated with the second network link.

10. The UE of claim 9 , wherein the one or more processors are further configured to:
operate one or more common components that are shared by the first network link and the second network link in accordance with the off duration of the first DRX cycle during the portion of the off duration of the first DRX cycle associated with the first network link that overlaps with the off duration of the second DRX cycle associated with the second network link.

11. The UE of claim 9 , wherein the one or more inter-frequency measurement objects assigned to the second network link are associated with one or more frequencies that are different from one or more frequencies associated with one or more inter-frequency measurement objects assigned to the first network link.

12. The UE of claim 9 , wherein the one or more inter-frequency measurement objects are assigned to unoccupied gap occasions on the second network link.

13. The UE of claim 9 , wherein the one or more processors are further configured to:
perform, using one or more components associated with the second network link, one or more inter-frequency measurement activities for the one or more inter-frequency measurement objects assigned to the second network link; and
transmit, via the first network link, a measurement report including one or more inter-frequency measurements that are based at least in part on the one or more inter-frequency measurement activities performed using the one or more components associated with the second network link.

14. The UE of claim 9 , wherein the first network link and the second network link are associated with different cell groups configured in a dual connectivity mode.

15. The UE of claim 9 , wherein the first network link and the second network link are associated with different subscriber identity modules.

16. The UE of claim 9 , wherein, after assignment of the one or more inter-frequency measurement objects to the second network link, the multiple inter-frequency measurement objects are evenly distributed between the first network link and the second network link.

17. 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 user equipment (UE), cause the UE to:
receive a measurement configuration indicating multiple inter-frequency measurement objects on a first network link associated with a first discontinuous reception (DRX) cycle;
assign, to a second network link, one or more inter-frequency measurement objects, among the multiple inter-frequency measurement objects, that are scheduled during an off duration of the first DRX cycle; and
operate one or more components associated with the first network link in accordance with the off duration of the first DRX cycle during a portion of the off duration of the first DRX cycle in which the one or more inter-frequency measurement objects are scheduled,
wherein the portion of the off duration of the first DRX cycle in which the one or more inter-frequency measurement objects are scheduled overlaps with an off duration of a second DRX cycle associated with the second network link.

18. The non-transitory computer-readable medium of claim 17 , wherein the one or more instructions further cause the UE to:
operate one or more common components that are shared by the first network link and the second network link in accordance with the off duration of t

Assignees

• Qualcomm Inc

Inventors

• Wang Yuanbo
• Hong Yue
• Santhanam Arvind Vardarajan
• Gopal Thawatt
• Lu Xiaoning
• Chen Defang
• Sankaran Viswanath
• Cheng Xiao
• Pais Christopher James
• Bindra Harsimransingh Narindersingh
• Pandya Parth Ashwinkumar
• Andika Billy

Classifications

• H04W76/16 Primary

  Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04W76/28

  Discontinuous transmission [DTX]; Discontinuous reception [DRX] · CPC title

• H04W76/15 Primary

  Setup of multiple wireless link connections · CPC title