Enhancing data performance in multi-subscriber identity module (SIM) wireless communication devices

Patent metadata

Field	Value
Publication number	US-10178561-B2
Application number	US-201715442429-A
Country	US
Kind code	B2
Filing date	Feb 24, 2017
Priority date	Feb 24, 2017
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

Examples described herein relate to enhancing data communication performance in a wireless communication network including a first subscription associated with a first radio access technology (RAT) and a second subscription associated with a second RAT, where the wireless communication device uses a same radio frequency (RF) resource to communicate over both the first RAT and the second RAT. The first RAT is used, in part, for data operations while the second RAT is used, in part, for voice operations. During idle state voice operations, the RF resource is reallocated from performing data operations to performing idle state voice operations, causing interruptions in the data operations. The wireless communication device adjusts at least one or a duration and an occurrence of the idle state voice operations to reduce the impact on the data operations.

First claim

What is claimed is:

1. A method to improve data communications in a wireless communication device, comprising:
detecting a data operation over a first radio access technology (RAT) network associated with a first subscriber identity module (SIM);
detecting one or more idle status voice operations over a second RAT network associated with a second SIM, wherein the data operation and the one or more idle status voice operations share a radio frequency (RF) resource; and
responsive to detecting the data operation and the idle status voice operation, adjusting at least one of a duration and an occurrence of the one or more idle status voice operations based on types of the one or more idle status voice operations being carried out during a discontinuous (DRX) cycle.

2. The method of claim 1 , further comprising monitoring a paging channel of a serving cell in the second RAT network to detect a predetermined channel condition, and wherein the adjusting is further based on the predetermined channel condition.

3. The method of claim 1 , further comprising reallocating the RF resource from the data operation to the at least one idle status voice operation in response to detecting the one or more idle status voice operations.

4. The method of claim 1 , wherein the adjusting includes decreasing a repetition rate of a cell measurement operation.

5. The method of claim 1 , wherein the adjusting includes decreasing a number of the one or more idle status voice operations during the DRX cycle.

6. The method of claim 1 , wherein the adjusting includes reducing a total duration of the one or more idle status voice operations during the DRX cycle.

7. The method of claim 1 , wherein the adjusting includes performing a search for suitable frequencies within a serving RAT prior to switching to a neighboring cell in a RAT network that is different from the second RAT network.

8. The method of claim 1 , wherein the adjusting includes reducing a signal strength measurement threshold with which a signal strength of a serving cell frequency is compared during a cell measurement operation.

9. The method of claim 1 , wherein the adjusting includes performing at least one of a cell measurement operation and a cell selection operation during the DRX cycle separately from other idle state voice operations.

10. A wireless communication device, comprising:
a radio frequency (RF) resource configured to support a data operation over a first radio access technology (RAT) network associated with a first subscriber identity module (SIM), and to support one or more idle status voice operations over a second RAT network associated with a second SIM;
a processor coupled to the RF resource; and
a memory storing instructions that, when executed by the processor, cause the wireless communication device to:
detect the data operation over the first RAT network,
detect the one or more idle status voice operation over the second RAT network, and
responsive to detecting the data operation and the one or more idle status voice operations, adjust at least one of a duration and an occurrence of the one or more idle status voice operations based on types of the one or more idle status voice operations being carried out during a discontinuous (DRX) cycle.

11. The wireless communication device of claim 10 , wherein execution of the instructions further causes the wireless communication device to monitor a paging channel of a serving cell in the second RAT network to detect a predetermined channel condition.

12. The wireless communication device of claim 10 , wherein execution of the instructions further causes the wireless communication device to reallocate the RF resource from the data operation to the at least one idle status voice operation in response to detecting the one or more idle status voice operations.

13. The wireless communication device of claim 10 , wherein execution of the instructions causes the wireless communication device to adjust at least one of a duration and an occurrence of the one or more idle status voice operations by decreasing a repetition rate of a cell measurement operation.

14. The wireless communication device of claim 10 , wherein execution of the instructions causes the wireless communication device to adjust at least one of a duration and an occurrence of the one or more idle status voice operations by decreasing a number of the one or more idle status voice operations during the DRX cycle.

15. The wireless communication device of claim 10 , wherein execution of the instructions causes the wireless communication device processor is adapted to adjust at least one of a duration and an occurrence of the one or more idle status voice operations by reducing a total duration of the one or more idle status voice operations during the DRX cycle.

16. The wireless communication device of claim 10 , wherein execution of the instructions causes the wireless communication device to adjust at least one of a duration and an occurrence of the one or more idle status voice operations by performing a search for suitable frequencies within a serving cell prior to switching to a neighboring cell in a RAT network that is different from the second RAT network.

17. The wireless communication device of claim 10 , wherein execution of the instructions causes the wireless communication device to adjust at least one of a duration and an occurrence of the one or more idle status voice operations by reducing a signal strength measurement threshold with which a signal strength of a serving cell frequency is compared during a cell measurement operation.

18. The wireless communication device of claim 10 , wherein execution of the instructions causes the wireless communication device to adjust at least one of a duration and an occurrence of the one or more idle status voice operations by performing at least one of a cell measurement operation and a cell selection operation during a discontinuous reception cycle (DRX) separately from other idle state voice operations.

19. A method to improve data communications in a wireless communication device, comprising:
detecting a data operation over a first radio access technology (RAT) network associated with a first subscriber identity module (SIM);
detecting one or more idle status voice operations over a second RAT network associated with a second SIM, wherein the data operation and the one or more idle status voice operations share a radio frequency (RF) resource; and
responsive to detecting the data operation and the idle status voice operation, adjusting at least one of a duration and an occurrence of the one or more idle status voice operations by:
skipping cell measurement operations if a serving cell provides a predetermined channel condition;
skipping cell reselection operations to a different RAT network from the second RAT network if a serving cell provides a predetermined channel condition;
adjusting a reselection priority level associated with a serving cell frequency to be greater than or equal to a reselection priority associated with a neighboring cell frequency; or
increasing reselection priorities of all frequencies in a serving RAT to be greater than or equal to a reselection priority of any frequency of a non-serving RAT.

20. A wireless communication device, comprising:
a radio frequency (RF) resource configured to support a data operation over a first radio access technology (RAT) network associated with a first subscriber identity module (SIM), and to support one or more idle status voice operat

Assignees

• Qualcomm Inc
• Qualcomm Inc

Inventors

• Hu Jun
• Chen Qingxin
• Shahidi Reza
• Shi Yongsheng
• Mohseni Jafar
• Wu Yongle
• Li Yong
• Maiya Shashank
• Venkatachari Harish
• Swaminathan Shriram
• Hoover Scott
• Singh Sumit Kumar
• Patil Kiran
• Fan Zhong
• Qazi Uzma Khan
• Tambaram Kailasam Sundaresan
• Gurram Sunil Kumar

Classifications

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04W76/28 Primary

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

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title