Redirection of a session initiation protocol invite

Patent metadata

Field	Value
Publication number	US-10142432-B2
Application number	US-201715427829-A
Country	US
Kind code	B2
Filing date	Feb 8, 2017
Priority date	Feb 8, 2017
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

Methods, systems, and devices for wireless communication are described for redirection of a session initiation protocol (SIP) INVITE. A multi-subscriber identification module user equipment (multi-SIM UE) may intelligently determine when to redirect a SIP INVITE message to control on which of multiple networks a communication session is established. The multi-SIM UE may receive a SIP INVITE from a first user equipment (UE) requesting to establish a SIP session on a first network, the SIP INVITE including a first network address of the multi-SIM UE that is associated with a first SIM of the multi-SIM UE. The multi-SIM UE may, based at least in part on determining that a redirection criterion is satisfied, transmit a SIP redirection response including a second network address of the multi-SIM UE on a second network that is associated with a second SIM of the multi-SIM UE.

First claim

What is claimed is:

1. A method for wireless communication, comprising:
receiving, by a multi-subscriber identification module user equipment (multi-SIM UE), a session initiation protocol (SIP) INVITE from a first user equipment (UE) requesting to establish a SIP session on a first network, the SIP INVITE including a first network address of the multi-SIM UE that is associated with a first SIM of the multi-SIM UE;
determining that a redirection criterion is satisfied; and
based at least in part on determining that the redirection criterion is satisfied, transmitting, by the multi-SIM UE in response to the SIP INVITE received from the first UE, a SIP redirection response including a second network address of the multi-SIM UE on a second network that is associated with a second SIM of the multi-SIM UE.

2. The method of claim 1 , wherein determining that the redirection criterion is satisfied comprises:
determining that a first condition of a first communication channel associated with the first network does not satisfy a threshold; and
determining that a second condition of a second communication channel associated with the second network satisfies the threshold.

3. The method of claim 1 , wherein determining that the redirection criterion is satisfied comprises:
determining that the first network is a non-home network and the second network is a home network.

4. The method of claim 1 , further comprising:
establishing, by the multi-SIM UE, the SIP session on the second network based at least in part on the second network address.

5. The method of claim 4 , wherein establishing the SIP session on the second network comprises:
initiating a handshake for establishment of the SIP session on the second network based at least in part on receiving a second SIP INVITE requesting to establish the SIP session on the second network;
transmitting a SIP acceptance response to indicate acceptance of the second SIP INVITE; and
receiving an acknowledgment of the SIP acceptance response that completes the handshake and establishes the SIP session on the second network.

6. The method of claim 1 , further comprising:
performing a first Internet Protocol Multimedia Subsystem (IMS) registration procedure to register a first subscription associated with the first SIM with the first network and to obtain the first network address for the multi-SIM UE on the first network; and
performing a second IMS registration procedure to register a second subscription associated with the second SIM with the second network and to obtain the second network address for the multi-SIM UE on the second network.

7. The method of claim 1 , further comprising:
initiating a timer based at least in part on a transmission time of the SIP redirection response; and
terminating the timer prior to expiration of the timer based at least in part on determining successful establishment of the SIP session on the second network.

8. The method of claim 7 , further comprising:
receiving a second SIP INVITE from the first UE or a second UE requesting to establish a second SIP session on the first network;
transmitting a second SIP redirection response that includes the second network address;
initiating the timer based at least in part on a transmission time of the second SIP redirection response; and
establishing the second SIP session on the first network based at least in part on determining that the timer has expired.

9. The method of claim 1 , wherein the first network address is a uniform resource identifier (URI) associated with the first SIM on the first network and the second network address is a URI associated with the second SIM on the second network.

10. The method of claim 1 , wherein the SIP redirection response is one of a SIP 300 response, a SIP 301 response, a SIP 302 response, a SIP 305 response, or a SIP 380 response.

11. An apparatus for wireless communication, in a system comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
receive a session initiation protocol (SIP) INVITE from a first user equipment (UE) requesting to establish a SIP session on a first network, the SIP INVITE including a first network address of a multi-subscriber identification module user equipment (multi-SIM UE) that is associated with a first SIM of the multi-SIM UE;
determine that a redirection criterion is satisfied; and
based at least in part on determining that the redirection criterion is satisfied, transmit, in response to the SIP INVITE received from the first UE, a SIP redirection response including a second network address of the multi-SIM UE on a second network that is associated with a second SIM of the multi-SIM UE.

12. The apparatus of claim 11 , wherein the instructions to cause the apparatus to determine that the redirection criterion is satisfied further comprise instructions executable by the processor to:
determine that a first condition of a first communication channel associated with the first network does not satisfy a threshold; and
determine that a second condition of a second communication channel associated with the second network satisfies the threshold.

13. The apparatus of claim 11 , wherein the instructions to cause the apparatus to determine that the redirection criterion is satisfied comprise instructions executable by the processor to:
determine that the first network is a non-home network and the second network is a home network.

14. The apparatus of claim 11 , wherein the instructions are further executable by the processor to:
establish the SIP session on the second network based at least in part on the second network address.

15. The apparatus of claim 14 , wherein the instructions to cause the apparatus to establish the SIP session on the second network comprise instructions executable by the processor to:
initiate a handshake for establishment of the SIP session on the second network based at least in part on receiving a second SIP INVITE requesting to establish the SIP session on the second network;
transmit a SIP acceptance response to indicate acceptance of the second SIP INVITE; and
receive an acknowledgment of the SIP acceptance response that completes the handshake and establishes the SIP session on the second network.

16. The apparatus of claim 11 , wherein the instructions are further executable by the processor to:
perform a first Internet Protocol Multimedia Subsystem (IMS) registration procedure to register a first subscription associated with the first SIM with the first network and to obtain the first network address for the multi-SIM UE on the first network; and
perform a second IMS registration procedure to register a second subscription associated with the second SIM with the second network and to obtain the second network address for the multi-SIM UE on the second network.

17. The apparatus of claim 11 , wherein the instructions are further executable by the processor to:
initiate a timer based at least in part on a transmission time of the SIP redirection response; and
terminate the timer prior to expiration of the timer based at least in part on determining successful establishment of the SIP session on the second network.

18. The apparatus of claim 17 , wherein the instructions are further executable by the processor to:
receive a second SIP INVITE from the first UE or a second UE requesting to establish a second SIP session on the first network;
transmit a second

Assignees

• Qualcomm Inc

Inventors

• Vasanthasenan Krishnakumar
• Mohan Prashanth
• Rajpoot Abhilash Singh
• Krishnamoorthy Parthasarathy
• Pasunooru Naveen Kumar

Classifications

• H04L65/1016

  IP multimedia subsystem [IMS] · CPC title

• H04W76/10

  Connection setup · CPC title

• H04L65/1069

  Session establishment or de-establishment · CPC title

• H04W8/02

  Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks · CPC title

• H04W80/04

  Network layer protocols, e.g. mobile IP [Internet Protocol] · CPC title