CN-122028178-A - Techniques for enhancing paging sharing for dual subscription devices using channel quality based combining conditions

Abstract

Methods, systems, and devices for wireless communications are described. In some systems, a User Equipment (UE), such as a dual subscription UE, supports a first subscription and a second subscription. The first subscription may be in an active mode with a first cell and the second subscription may be in an idle mode with a second cell, and the UE may determine whether to exit or defer to a merge state in which the UE may use the first subscription and the first cell to perform idle mode measurements for the second subscription according to a channel quality based merge condition. For example, the UE may measure a channel quality associated with a communication link between the UE and the first cell, and in examples where the measured channel quality fails to meet a threshold channel quality, the UE may exit or defer from entering a combined state.

Inventors

• XIE LING
• R. Tindora
• S. Krishnamushi
• U. Vias
• T.Jin
• D.LIN

Assignees

• 高通股份有限公司

Dates

Publication Date

20260512

Application Date

20211014

Priority Date

20201014

Claims (20)

1. 1. A method for wireless communication at a user equipment, UE, comprising: Identifying that a first subscription of the UE is in an active mode with a first cell; identifying that a second subscription of the UE is in idle mode with a second cell; Identifying a first mode of operation of the UE, wherein the first mode of operation includes performing idle mode measurements for the second subscription using the first subscription; Determining that a first channel quality associated with a first communication link between the UE and the first cell fails to meet a threshold channel quality; Exit the first mode of operation based at least in part on failing to meet the threshold channel quality, and The idle mode measurement for the second subscription is performed using the second subscription based at least in part on the UE exiting the first mode of operation.
2. 2. The method of claim 1, further comprising: a timer is started based at least in part on the UE exiting the first mode of operation, wherein the idle mode measurement for the second subscription is performed using the second subscription during at least a duration of the timer.
3. 3. The method of claim 2, further comprising: Determining, during the duration of the timer, that the UE establishes a connection with a third cell using the first subscription; Terminating the timer based at least in part on establishing the connection with the third cell using the first subscription; determining whether a second channel quality associated with a second communication link between the UE and the third cell meets the threshold channel quality, and Determining whether to re-enter the first mode of operation based at least in part on whether the second channel quality meets the threshold channel quality.
4. 4. The method of claim 2, further comprising: Determining that the timer expires; Determining whether the first channel quality associated with the first communication link between the UE and the first cell meets the threshold channel quality, and Determining whether to re-enter the first mode of operation based at least in part on whether the first channel quality meets the threshold channel quality.
5. 5. The method of claim 1, wherein exiting the first mode of operation comprises: the first mode of operation is exited based at least in part on a radio resource control protocol trigger, wherein the radio resource control protocol trigger is activated based at least in part on failing to meet the threshold channel quality.
6. 6. The method of claim 1, further comprising: A threshold number of consecutive cyclic redundancy check failures associated with a data channel of the first communication link is detected based at least in part on a paging radio network temporary identifier, P-RNTI, wherein failing to meet the threshold channel quality is based at least in part on detecting the threshold number of consecutive cyclic redundancy check failures associated with the data channel.
7. 7. The method of claim 1, wherein failing to meet the threshold channel quality comprises failing to meet a channel quality-based combining condition associated with the first mode of operation.
8. 8. The method of claim 1, wherein the first channel quality comprises a reference signal received power or a signal to noise ratio.
9. 9. The method of claim 1, wherein the first subscription is a default data subscription and the second subscription is a non-default data subscription.
10. 10. A method for wireless communication at a user equipment, UE, comprising: Identifying that a first subscription of the UE is in an active mode with a first cell; identifying that a second subscription of the UE is in idle mode with a second cell; Determining that a criterion for entering a first mode of operation is met, wherein the UE performs idle mode measurements for the second subscription using the first subscription; determining that a first channel quality associated with a first communication link between the UE and the first cell fails to meet a threshold channel quality, and The initiation of the first mode of operation is deferred based at least in part on failing to meet the threshold channel quality.
11. 11. The method of claim 10, further comprising: A timer is started based at least in part on failing to meet the threshold channel quality, wherein start of the first mode of operation is deferred for at least a duration of the timer.
12. 12. The method of claim 11, further comprising: Identifying that the first subscription of the UE transitions to being in idle mode with the first cell, and Cell reselection and measurement for the first subscription is initiated.
13. 13. The method of claim 11, further comprising: Determining, during the duration of the timer, that the UE establishes a connection with a third cell using the first subscription; Terminating the timer based at least in part on establishing the connection with the third cell using the first subscription; determining whether a second channel quality associated with a second communication link between the UE and the third cell meets the threshold channel quality, and Determining whether to initiate the first mode of operation based at least in part on whether the second channel quality meets the threshold channel quality.
14. 14. The method of claim 11, further comprising: Determining that the timer expires; Determining whether the first channel quality associated with the first communication link between the UE and the first cell meets the threshold channel quality, and Determining whether to initiate the first mode of operation based at least in part on whether the first channel quality meets the threshold channel quality.
15. 15. The method of claim 10, further comprising: Determining that the second subscription is capable of using the first cell with the first subscription to conduct the first mode of operation, wherein determining that the criteria for entering the first mode of operation is met is based at least in part on determining that the second subscription is capable of using the first cell with the first subscription to conduct the first mode of operation.
16. 16. The method of claim 10, wherein determining that the criteria for entering the first mode of operation is met comprises: Determining that initiation of the first mode of operation has been triggered by a radio resource control protocol of the UE.
17. 17. The method of claim 10, further comprising: A threshold number of consecutive cyclic redundancy check failures associated with a data channel of the first communication link is detected based at least in part on a paging radio network temporary identifier, P-RNTI, wherein failing to meet the threshold channel quality is based at least in part on detecting the threshold number of consecutive cyclic redundancy check failures associated with the data channel.
18. 18. The method of claim 10, wherein failing to meet the threshold channel quality comprises failing to meet a channel quality-based combining condition associated with the first mode of operation.
19. 19. The method of claim 10, wherein the first channel quality comprises a reference signal received power or a signal to noise ratio.
20. 20. The method of claim 10, wherein the first subscription is a default data subscription and the second subscription is a non-default data subscription.

Description

Techniques for enhancing paging sharing for dual subscription devices using channel quality based combining conditions The present application is a divisional application of patent application with international application number 2021, 10 and 14, international application number PCT/CN2021/123718, chinese national application number 2021, 10 and 14, application number 202180069130.9, and entitled "technique for enhancing paging sharing of dual subscription devices using channel quality based combining conditions". Cross reference This patent application claims "TECHNIQUES FOR ENHANCING PAGE SHARING USING A CHANNEL QUALITY-BASED MERGE CONDITION FOR DUAL-SUBSCRIPTION DEVICES（, filed by Xie et al at 14, 10, 2020, for techniques for enhancing paging sharing of dual subscription devices using channel quality based combining conditions) and gives priority to international patent application no PCT/CN2020/120812, assigned to the assignee of the present application. FIELD OF THE DISCLOSURE For example, the present disclosure relates to wireless communication systems including techniques for enhancing paging sharing for dual subscription devices using channel quality based combining conditions. Background Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be able to support communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-advanced (LTE-a) systems, or LTE-a Pro systems, and fifth generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems may employ various techniques such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), or discrete fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously support communication for multiple communication devices, which may be otherwise referred to as User Equipment (UE). In some wireless communication systems, a UE may support multiple subscriptions (e.g., by using multiple Subscriber Identity Modules (SIM) cards) that the UE may utilize to establish connections with a serving cell. In some cases, a UE may support two subscriptions that belong to the same operator or to different operators but share the same Radio Access Network (RAN). In such cases, the UE may employ an operating mode in which the UE performs idle mode measurements for one subscription via another subscription, which may result in lower power costs and increased throughput. However, such modes of operation may result in poor performance under some network conditions. SUMMARY The described technology relates to improved methods, systems, devices, and apparatuses supporting techniques for enhancing paging sharing for dual subscription devices using channel quality based combining conditions. For example, a User Equipment (UE) may support a first subscription that is a Default Data Subscription (DDS) and a second subscription that is a non-DDS (nldds), and in examples where the first subscription is in an active state and the second subscription is in an idle mode, the UE may employ paging sharing techniques by using the first subscription to receive paging messages or performing various other idle mode measurements for the second subscription. The UE may employ such paging sharing techniques in examples where the first subscription and the second subscription are in a consolidated state, which may be referred to herein as a first mode of operation. In some implementations of the disclosure, the UE may adjust the continuation or entry of the merge state between the first subscription and the second subscription according to a channel quality based merge condition. For example, the UE may exit the merge state or defer to enter the merge state based on a channel quality associated with a communication link between the UE and a serving cell with which a first subscription (e.g., a subscription in an active mode) established a connection. For example, in some examples, the UE may operate in a consolidated state (e.g., using a first subscription to receive paging messages and performing various other idle mode measurements for a second subscription), measure channel quality associated with a communication link between the UE and a serving cell, and exit the consolidated state if the measured channel quality fails to meet a threshold channel quality (e.g., using the second subscription instead of the first subscription to receive paging messages and performing various other i