METHOD AND USER EQUIPMENT FOR HANDLING SERVICE CONNECTIVITY IN WIRELESS COMMUNICATION SYSTEM

• US 20200137716A1
• Filed: 10/08/2019
• Published: 04/30/2020
• Est. Priority Date: 10/08/2018
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: DEVARAYANIGARI, Pavan Kumar, SURESHSAH, Ramkumar Thirumalli, KARAMSETTI, Venkata Anil Kumar, BHAT, Bharat Vinayak, KUMAR, Lalith
• Granted Patent: US 11,184,876 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 2101/654 International mobile subscriber identity [IMSI] numbers
• CPC Class Codes: H04L 61/5038 for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
• CPC Class Codes: H04L 61/5053 Lease time; Renewal aspects
• CPC Class Codes: H04L 61/5076 Update or notification mechanisms, e.g. DynDNS
• CPC Class Codes: H04W 4/14 Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 68/005 Transmission of information for alerting of incoming communication
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 76/20 Manipulation of established connections
• CPC Class Codes: H04W 76/38 triggered by timers
• CPC Class Codes: H04W 8/02 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 Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A method for handling a service connection in a wireless communication system, including detecting, by a User Equipment (UE), a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE, receiving, by the UE, a valid Temporary Mobile Subscriber Identity (TMSI) in a TMSI reallocation procedure from a base station via a Radio Resource Control (RRC) connection, changing, by the UE, the MM service state to a NORMAL SERVICE state in response to the receiving a valid TMSI and the detecting a MM service state, and sending, by the UE, a paging response message to the base station in response to the changing the MM service state and a paging indication message received from the base station to establish the service connection, the paging indication message including the valid TMSI.

Claims

1. A method for handling a service connection in a wireless communication system, comprising:

detecting, by a User Equipment (UE), a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE;

receiving, by the UE, a valid Temporary Mobile Subscriber Identity (TMSI) in a TMSI reallocation procedure from a base station via a Radio Resource Control (RRC) connection;

changing, by the UE, the MM service state to a NORMAL SERVICE state in response to the receiving a valid TMSI and the detecting a MM service state; and

sending, by the UE, a first paging response message to the base station in response to the changing the MM service state and a first paging indication message received from the base station to establish the service connection, the first paging indication message including the valid TMSI.

2. The method of claim 1, further comprising:

changing, by the UE, an update status of the UE to U1 UPDATED in response to the receiving a valid TMSI.

3. The method of claim 1, wherein the service connection is at least one of a call connection, a Short Message Service (SMS) connection or a supplementary service (SS) connection.

4. The method of claim 1, wherein the valid TMSI is associated with a current location area of the UE.

5. The method of claim 1, wherein the MM service state of the UE is set to ATTEMPTING TO UPDATE based on a failed location area updating procedure with the base station.

6. The method of claim 1, further comprising:

sending a second paging response message to the base station in response to a second paging indication message received from the base station including an International Mobile Subscriber Identity (IMSI),

wherein the receiving a valid TMSI is performed after the sending a second paging response message to the base station.

7. The method of claim 6, further comprising:

completing a communication performed based on the second paging indication message,

wherein the changing the MM service state is performed after the completing a communication.

8. The method of claim 7, wherein the communication is a circuit switched call.

9. A method for handling a service connection in a wireless communication system, comprising:

detecting, by a User Equipment (UE), a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE;

receiving, by the UE, a paging message including an International Mobile Subscriber Identity (IMSI);

determining, by the UE, whether a timer is running;

performing, by the UE, a first location area updating procedure with a base station in response to the detecting a MM service state, the determining the timer is running, and releasing a Radio Resource Control (RRC) connection with the base station associated with the paging message; and

establishing the service connection with the base station using a valid Temporary Mobile Subscriber Identity (TMSI) obtained during the first location area updating procedure.

10. The method of claim 9, wherein the service connection is at least one of a call connection, a Short Message Service (SMS) connection or a supplementary service (SS) connection.

11. The method of claim 9, wherein the valid TMSI is associated with a current location area of the UE.

12. The method of claim 9, wherein the Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE based on a failed second location area updating procedure with the base station.

13. A User Equipment (UE) for handling a service connection in a wireless communication system, comprising:

processing circuitry configured to,

detect a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE,

receive a valid Temporary Mobile Subscriber Identity (TMSI) in a TMSI reallocation procedure from a base station via a Radio Resource Control (RRC) connection,

change the MM service state to a NORMAL SERVICE state in response to receiving the valid TMSI and detecting the MM service state is set to ATTEMPTING TO UPDATE, and

send a first paging response message to the base station in response to changing the MM service state to the NORMAL SERVICE state and a first paging indication message received from the base station to establish the service connection, the first paging indication message including the valid TMSI.

14. The UE of claim 13, wherein the processing circuitry is configured to:

change an update status of the UE to U1 UPDATED in response to receiving the valid TMSI.

15. The UE of claim 13, wherein the service connection is at least one of a call connection, a Short Message Service (SMS) connection or a supplementary service (SS) connection.

16. The UE of claim 13, wherein the valid TMSI is associated with a current location area of the UE.

17. The UE of claim 13, wherein the MM service state of the UE is set to ATTEMPTING TO UPDATE based on a failed location area updating procedure with the base station.

18. The UE of claim 13, wherein the processing circuitry is configured to:

send a second paging response message to the base station in response to a second paging indication message received from the base station including an International Mobile Subscriber Identity (IMSI); and

receive the valid TMSI after sending the second paging response message to the base station.

19. The UE of claim 18, wherein the processing circuitry is configured to:

complete a communication performed based on the second paging indication message; and

change the MM service state to a NORMAL SERVICE state after completing the communication.

20. The UE of claim 19, wherein the communication is a circuit switched call.

21. A User Equipment (UE) for handling a service connection in a wireless communication system, comprising:

processing circuitry configured to,

detect a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE,

receive a paging message including an International Mobile Subscriber Identity (IMSI),

determine whether a timer is running,

perform a location area updating procedure with a base station in response to detecting the MM service state is set to ATTEMPTING TO UPDATE, determining the timer is running, and releasing a Radio Resource Control (RRC) connection with the base station associated with the paging message, and

establish the service connection with the base station using a valid Temporary Mobile Subscriber Identity (TMSI) obtained during the location area update procedure.

22. The UE of claim 21, wherein the service connection is at least one of a call connection, a Short Message Service (SMS) connection or a supplementary service (SS) connection.