Sleep-mode wireless cell reselection apparatus, systems, and methods

• US 8,259,634 B2
• Filed: 12/30/2009
• Issued: 09/04/2012
• Est. Priority Date: 10/21/2005
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Srinivasan, Roshni, Venkatachalam, Muthaiah, Pareek, Sameer
• Primary Examiner(s): Gelin, Jean
• Assistant Examiner(s): PATEL, MAHENDRA R
• Application Number:
  US12/650,157
• Publication Number:
  US 20110103279A1
• Time in Patent Office: 979 Days
• Field of Search: 455/445, 455/432.1, 455/522, 455/506, 455/419, 455/569.1, 455/574, 370/342, 370/311, 375/142, 375/130, 375/E1.032, 375/349, 375/150, 342/457, 343/702, 343/848, 343/725
• US Class Current: 370/311
• CPC Class Codes: H04W 36/02 Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Embodiments herein may receive a ranging request message with a sleep-mode indication from a mobile node at a destination base station in a wireless packet-switched network. System paging information may be accessed to determine a base station identifier associated with an originating base station that last served the mobile node. The originating base station may be contacted to retrieve a service context associated with the mobile node and any downlink packets buffered for the mobile node by the originating base station. Other embodiments may be described and claimed.

Claims

1. A method, comprising:

receiving a ranging request message from a mobile node at a destination base station in a wireless packet-switched network (WPSN), wherein no service context associated with the mobile node exists at the destination base station at a time of receiving the ranging request message, and wherein the mobile node is in a sleep mode;

identifying an originating base station that previously served the mobile node by determining a base station identifier (BSID) associated with the originating base station from the ranging request message;

retrieving an original service context associated with the mobile node, the original service context comprising at least one of a class of traffic or a quality of service associated with a connection maintained by the WPSN on behalf of the mobile node; and

responding to the ranging request message with a ranging response message;

wherein the original service context is retrieved by the destination base station from the originating base station based on the destination base station contacting the originating base station.

2. The method of claim 1, further comprising:

communicating between the destination base station and the originating base station across an access service network (ASN).

3. The method of claim 1, further comprising:

receiving the service context associated with the mobile node from the originating base station.

4. The method of claim 1, wherein the originating base station last served the mobile node.

5. The method of claim 1, wherein the service context is stored at the originating base station.

6. A non-transitory computer-readable medium having instructions, wherein the instructions, when executed, result in at least one processor performing:

receiving a ranging request message from a mobile node at a destination base station in a wireless packet-switched network (WPSN), wherein no service context associated with the mobile node exists at the destination base station at a time of receiving the ranging request message, and wherein the mobile node is in a sleep mode;

identifying an originating base station that previously served the mobile node by determining a base station identifier (BSID) associated with the originating base station from the ranging request message;

retrieving an original service context associated with the mobile node, the original service context comprising at least one of a class of traffic or a quality of service associated with a connection maintained by the WPSN on behalf of the mobile node; and

responding to the ranging request message with a ranging response message;

wherein the original service context is retrieved by the destination base station from the originating base station based on the destination base station contacting the originating base station.

7. The non-transitory computer-readable medium of claim 6, wherein the instructions, when executed, result in the at least one processor performing:

communicating between the destination base station and the originating base station across an access service network (ASN).

8. The non-transitory computer-readable medium of claim 6, wherein the originating base station previously served the mobile node.

9. An apparatus, comprising:

logic associated with a destination base station in a wireless packet-switched network (WPSN) to receive a ranging request with a sleep-mode indication from a mobile node, wherein no service context associated with the mobile node exists at the destination base station, and wherein the mobile node is in a sleep mode;

logic to identify an originating base station that previously served the mobile node by determining a base station identifier (BSID) associated with the originating base station from the ranging request;

logic associated with the destination base station to contact the originating base station and retrieve a service context associated with the mobile node from the originating base station, the service context comprising at least one of a class of traffic or a quality of service associated with a connection maintained by the WPSN on behalf of the mobile node; and

logic to respond to the ranging request with a ranging response, the ranging response sent to the mobile device.

10. The apparatus of claim 9, wherein the logic to retrieve the service context is to receive the service context from the originating base station.

11. The apparatus of claim 9, wherein the connection comprises an Internet connection with the mobile node.

12. The apparatus of claim 9, further comprising:

logic to communicate with the originating base station across an access service network (ASN).

13. A system, comprising:

logic associated with a destination base station in a wireless packet-switched network (WPSN) to receive a ranging request with a sleep-mode indication from a mobile node, wherein no service context associated with the mobile node exists at the destination base station, and wherein the mobile node is in a sleep mode;

logic to identify an originating base station that previously served the mobile node by determining a base station identifier (BSID) associated with the originating base station from the ranging request;

logic associated with the destination base station to contact the originating base station and retrieve a service context associated with the mobile node from the originating base station, the service context comprising at least one of a class of traffic or a quality of service associated with a connection maintained by the WPSN on behalf of the mobile node;

logic to respond to the ranging request with a ranging response, the ranging response sent to the mobile device; and

an antenna to facilitate wireless communications with the mobile node; and

wherein the service context is stored at the originating base station.

14. The system of claim 13, further comprising:

the originating base station; and

an access service network (ASN) to provide communications between the destination base station and the originating base station.