Resuming packet services in a mobile network

• US 9,320,063 B2
• Filed: 12/26/2013
• Issued: 04/19/2016
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Zaus, Robert
• Primary Examiner(s): Shah, Chirag
• Assistant Examiner(s): Persaud, Amar
• Application Number:
  US14/141,067
• Publication Number:
  US 20150003326A1
• Time in Patent Office: 845 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04J 11/005 of intercell interference
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 25/021 Estimation of channel covariance
• CPC Class Codes: H04L 25/0242 using matrix methods
• CPC Class Codes: H04L 25/03891 Spatial equalizers MIMO diversity systems H04B7/0413
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/02 Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 68/04 multi-step notification using statistical or historical mobility data
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/004 : in the uplink, i.e. towards network
• CPC Class Codes: H04W 74/006 : in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/0816 : with collision avoidance
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/19 : Connection re-establishment
• CPC Class Codes: H04W 76/30 : Connection release
• CPC Class Codes: H04W 8/005 : Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/045 : using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 84/18 : Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

This disclosure relates generally to resuming packet services in a mobile network. A device, method, and/or system may include switching, with user equipment, from communicating with a first radio access network to communicating with a second radio access network, setting, with a processor of the user equipment, a register of the user equipment to initiate packet services with the first radio access network, and transmitting, with the user equipment, a request to a core network node of the first radio access network to resume communications with the first radio access network based, at least in part, on the register.

Claims

1. A method for inter-RAT cell reselection performed by user equipment (UE) that does not support dual transfer mode, the method comprising:

switching from packet switched (PS) services with a first radio access network to circuit switched (CS) communicating with a second radio access network, the first radio access network being a E-UTRAN network, the second radio access network being a non-E-UTRAN network;

transmitting signaling to suspend PS services while the UE has a signaling connection with a non-E-UTRAN cell;

setting, with a processor of the user equipment, a register of the user equipment to initiate packet switched services with the first radio access network; and

transmitting, with the user equipment, a request to a core network node of the first radio access network to resume PS services with the first radio access network after returning to a E-UTRAN cell based, at least in part, on the register, the request initiating tracking area update (TAU) procedure when idle mode signaling (ISR) is active,

wherein when resumption of PS services is unsuccessful, deactivating ISR after returning to the E-UTRAN cell and transmitting another request to initiate a TAU procedure after resetting the register to indicate a RAT that was established before inter-RAT cell reselection.

2. The method of claim 1, wherein the UE is configured to deactivate ISR locally by setting the register to a temporary identity register used in next update (TIN) parameter of the UE to a value indicating a P-Temporary Mobile Scriber Identity (P-TMSI) before initiating the TAU procedure,

wherein the P-TMSI refers to a RAT with which the UE was established before the inter-RAT cell reselection.

3. The method of claim 2, wherein setting the register to initiate packet services is based, at least in part, on an initial setting of the register being based on a radio access technology.

4. The method of claim 3, wherein the user equipment and the first radio access network are configured to communicate according to the radio access technology.

5. The method of claim 1, further comprising configuring the request based on the register and a protocol.

6. The method of claim 1, wherein the request is based, at least in part, on a geographic characteristic of the mobile network.

7. The method of claim 6, wherein the geographic characteristic of the mobile network is a tracking area of the network and wherein the request is a request to perform a tracking area update procedure with the first radio access network.

8. The method of claim 1, further comprising resuming communication with the first radio access network based, at least in part, on the request.

9. The method of claim 8, wherein resuming communication with the first radio access network is based, at least in part, on packet services.

10. The method of claim 1, wherein setting the register to initiate packet services is not performed if the second radio access network is at least one of a global system for mobile communications (GSM) radio access network and at least one of:

the switching was a release with redirection; and

a cell change order.

11. A user equipment that does not support dual transfer mode, the UE comprising:

a transceiver configured to communicate with a first radio access network and a second radio access network, the first radio access network being a E-UTRAN network, the second radio access network being a non-E-UTRAN network;

a register; and

a processor, coupled to the transceiver and the register, configured to;

switch the transceiver from packet switched (PS) services with the first radio access network to circuit switched (CS) communicating with the second radio access network;

set the register to initiate packet PS services with the first radio access network;

cause the transceiver to transmit signaling to suspend PS services while the UE has a signaling connection with a non-E-UTRAN cell; and

cause the transceiver to transmit a request to a core network node of the first radio access network to resume PS services with the first radio access network based, at least in part, on the register, the request initiating a tracking area update (TAU) procedure when idle mode signaling (ISR) is active,

wherein when resumption of PS services is unsuccessful, the UE is configured to deactivate ISR after returning to the E-UTRAN cell and transmitting another request to initiate a TAU procedure after resetting the register to indicate a RAT that was established before inter-RAT cell reselection.

12. The user equipment of claim 11, wherein the UE is configured to deactivate ISR locally by setting the register to a temporary identity register used in next update (TIN) parameter of the UE to a value indicating a P-Temporary Mobile Scriber Identity (P-TMSI) before initiating the TAU procedure,

wherein the P-TMSI refers to a RAT with which the UE was established before the inter-RAT cell reselection.

13. The user equipment of claim 12, wherein the processor is configured to set the register to initiate packet services based, at least in part, on an initial setting of the register being based on a radio access technology.

14. The user equipment of claim 13, wherein the transceiver and the first radio access network are configured to communicate according to the radio access technology.

15. The user equipment of claim 11, wherein the processor is further configured to configure the request based on the register and a protocol.

16. The user equipment of claim 11, wherein the request is based, at least in part, on a geographic characteristic of the mobile network.

17. The user equipment of claim 16, wherein the geographic characteristic of the mobile network is a tracking area of the network and wherein the request is a request to perform a tracking area update procedure with the first radio access network.

18. The user equipment of claim 11, wherein the processor is further configured to cause the transceiver to resume communication with the first radio access network based, at least in part, on the request.

19. The user equipment of claim 18, wherein the processor is configured to cause the transceiver to resume communication with the first radio access network is based, at least in part, on packet services.

20. The user equipment of claim 11, wherein the processor is configured to not set the register to initiate packet services is if the second radio access network is at least one of a global system for mobile communications (GSM) radio access network and at least one of:

the switching was a release with redirection; and

a cell change order.