Multi-SIM assistance information

Patent metadata

Field	Value
Publication number	US-10623946-B1
Application number	US-201916380821-A
Country	US
Kind code	B1
Filing date	Apr 10, 2019
Priority date	Mar 25, 2019
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A MSIM capable UE may operate in a connected mode on a first subscription with a first network and operates on a second subscription in an idle mode or an active mode. The UE may miss communication on the first subscription by tuning away for activity on the second subscription. As presented herein, the may UE transmit, to the first network, MSIM assistance information regarding the second subscription. The MSIM assistance information may enable the network to determine periodic gaps needed by the UE to monitor a second subscription in an idle mode. The MSIM assistance information may enable the network to identify a network for the second subscription and to obtain scheduling information directly from that network.

First claim

What is claimed is:

1. A method of wireless communication at a User Equipment (UE), comprising:
operating in a connected mode on a first subscription with a first network;
operating in a second mode on a second subscription for a second network; and
transmitting, to the first network, Multiple Subscriber Identity Module (MSIM) assistance information regarding the second subscription, the MSIM assistance information including at least one of idle mode information for the second subscription for the second network or a cell identifier (ID) for the second subscription fir the second network.

2. The method of claim 1 , wherein the second mode on the second subscription comprises an idle mode, and wherein the MSIM assistance information includes idle mode information for the second subscription.

3. The method of claim 2 , wherein the idle mode information for the second subscription comprises a metric of a page on the second subscription.

4. The method of claim 2 , wherein the idle mode information comprises Discontinuous Reception (DRX) information about a DRX cycle of the second subscription.

5. The method of claim 2 , wherein the idle mode information comprises a tune away duration for tuning away from a first frequency band for the first subscription to a second frequency band for the second subscription.

6. The method of claim 2 , wherein the MSIM assistance information comprises identifier information for the second subscription or the second network for the second subscription.

7. The method of claim 6 , wherein the identifier information comprises a Public Land Mobile Network Identifier (PLMN ID).

8. The method of claim 1 , wherein the MSIM assistance information comprises the cell ID associated with the second subscription.

9. The method of claim 8 , wherein the second mode on the second subscription comprises an active mode.

10. The method of claim 1 , wherein the MSIM assistance information is indicated in a UE assistance information message to the first network.

11. The method of claim 1 , further comprising:
requesting a scheduling break on a carrier of the first subscription during a period of time based on resources that the UE will use for the second subscription.

12. The method of claim 11 , wherein the scheduling break is requested in a Medium Access Control (MAC) Control Element (CE).

13. The method of claim 1 , further comprising:
sending an indication of MSIM assistance capability to a base station; and
receiving a request on the first subscription for the MSIM assistance information from the base station, wherein the MSIM assistance information is received in response to the request.

14. The method of claim 1 , further comprising:
receiving or transmitting communication with the first network, wherein the communication is scheduled based in part on the second subscription.

15. The method of claim 1 , further comprising:
receiving a timer length for transmission of the MSIM assistance information, wherein following transmission of first MSIM assistance information, the UE waits until expiration of the timer length before sending additional MSIM assistance information.

16. A method of wireless communication, comprising:
receiving, from a User Equipment (UE) operating in a connected mode based on a first subscription with a first network, Multiple Subscriber Identity Module (MSIM) assistance information regarding operation in a second mode for a second subscription for a second network, the MSIM assistance information including at least one of idle mode information for the second subscription for the second network or a cell identifier (ID) for the second subscription for the second network; and
scheduling the UE based on the MSIM assistance information.

17. The method of claim 16 , wherein the MS IM assistance information comprises the idle mode information, and wherein the idle mode information includes at least one of a metric of a page on the second subscription, Discontinuous Reception (DRX) information about a DRX cycle of the second subscription, a tune away duration for tuning away from a first frequency band for the first subscription to a second frequency band for the second subscription, or a request for a scheduling break on a carrier.

18. The method of claim 17 , wherein the MSIM assistance information comprises at least one of a Public Land Mobile Network Identifier (PLMN ID) associated with the second subscription, or a cell identifier associated with the second subscription.

19. The method of claim 16 , wherein the MSIM assistance information is received in a UE assistance information message from the UE.

20. The method of claim 16 , wherein the second mode on the second subscription comprises an idle mode, and wherein scheduling the UE includes scheduling periodic time gaps for the UE to monitor for a page of the second subscription, wherein the periodic time gaps are scheduled using the MSIM assistance information received from the UE.

21. The method of claim 20 , further comprising:
selecting a time outside of the periodic time gaps to transmit control signaling to the HE.

22. The method of claim 20 , further comprising:
determining whether the second subscription is for a same Public Land Mobile Network (PLMN) as the first subscription or whether the first network has an agreement with a second network of the second subscription, wherein the UE is scheduled to avoid communication with the UE during the periodic time gaps if the second subscription is for the same PLMN as the first subscription or the first network has the agreement with the second network.

23. The method of claim 16 , wherein the second mode comprises an active mode, the method further comprising:
obtaining scheduling information for the HE from a second network for the second subscription, wherein the UE is scheduled to avoid resources based on the scheduling information obtained from the second network.

24. The method of claim 23 , wherein a base station that schedules the HE to avoid the resources based on the scheduling information configured the UE for a carrier aggregation mode, wherein a Secondary Component Carrier (SCC) is configured for the HE using the scheduling information obtained from the second network to limit interference with the second subscription.

25. The method of claim 16 , further comprising:
receiving a request for a scheduling break on the first subscription during a period of time based on time or frequency resources that the UE will use for the second subscription.

26. The method of claim 25 , wherein the request for the scheduling break is received in a Medium Access Control (MAC) Control Element (CE).

27. The method of claim 16 , further comprising:
receiving an indication of MSIM assistance capability from the UE; and
transmitting a request on the first subscription for the MSIM assistance information from the UE, wherein the MSIM assistance information is received in response to the request.

28. The method of claim 16 , further comprising:
indicating a timer length, to the UE, for transmission of the MSIM assistance information.

29. An apparatus for wireless communication at a User Equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and configured to:
operate in a connected mode on a first subscription for a first network;
operate in a second

Assignees

• Qualcomm Inc

Inventors

• Kumar Akash
• Bansal Hargovind Prasad

Classifications

• H04W76/27

  Transitions between radio resource control [RRC] states · CPC title

• H04W76/15 Primary

  Setup of multiple wireless link connections · CPC title

• H04W8/183

  Processing at user equipment or user record carrier · CPC title

• H04W8/205 Primary

  Transfer to or from user equipment or user record carrier · CPC title

• H04W84/042

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