Communication system

Patent metadata

Field	Value
Publication number	US-9504013-B2
Application number	US-201314417973-A
Country	US
Kind code	B2
Filing date	Jul 2, 2013
Priority date	Aug 1, 2012
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

The present invention provides a communication node for a communication network. The communication node includes means for identifying that paging is required for a mobile communication device, means for obtaining information identifying at least one cell in which said mobile communication device has been located previously and for obtaining further information relating to at least one of movement of the mobile communication device between cells and a time when said mobile communication device was located in said at least one cell, means for defining a set comprising at least one cell in which to seek said mobile communication device, based on said information and said further information, and means for initiating transmission of a respective paging message for said mobile communication device in each cell of said set.

First claim

What is claimed is:

1. A communication node for a communication network, the communication node comprising:
a controller, comprising one or more processors, configured to:
identify that paging is required for a mobile communication device;
obtain information identifying at least one cell in which said mobile communication device has been located previously, and obtain further information relating to at least one of movement of the mobile communication device between cells and a time when said mobile communication device was located in said at least one cell;
define a set in which to seek said mobile communication device, based on said information and said further information, the set comprising a first cell which the mobile communication device was most recently connected to and neighbouring cells of the first cell, wherein the neighbouring cells are selected based on said further information relating to at least one of movement of the mobile communication device between cells and the time when said mobile communication device was located in said at least one cell; and
initiate transmission of a respective paging message for said mobile communication device in each cell of said set.

2. The communication node of claim 1 , wherein the controller is further configured to determine whether or not a response has been received from the mobile communication device in response to a paging message for said mobile communication device.

3. The communication node of claim 2 , wherein said set comprises a first set, and wherein the controller is further configured to define at least one further set comprising at least one cell in which to seek said communication device, based on said information and said further information.

4. The communication node of claim 3 , wherein the controller is further configured to initiate transmission of a respective paging message for said mobile communication device in each cell of said at least one further set if said determining means determines that a response has not been received from the mobile communication device in response to a paging message for said mobile communication device transmitted in a cell of said set.

5. The communication node of claim 3 , wherein the controller is further configured to initiate: transmission of a respective paging message for said mobile communication device in each cell of the first set after a first time period; and transmission of a respective paging message for said mobile communication device in each cell of the at least one further set after at least one other time period which is longer than said first time period.

6. The communication node of claim 5 , wherein the controller is further configured to cancel, prior to expiry of said at least one other time period, transmission of the respective paging message for said mobile communication device in each cell of the at least one further set if the controller determines that a response has been received from the mobile communication device in response to a paging message for said mobile communication device transmitted in a cell of said first set.

7. The communication node of claim 2 , wherein the controller is further configured to signal said mobile communication device in pursuance of a communications connection with said mobile communication device if the controller determines that a response has been received from the mobile communication device in response to a paging message for said mobile communication device.

8. The communication node of claim 2 , further comprising means for updating at least one of said information and said further information in dependence on whether or not a response has been received from the mobile communication device in response to a paging message for said mobile communication device.

9. The communication node of claim 1 , wherein the controller is further configured to identify that dummy paging is required for the mobile communication device and wherein the or at least one said paging message comprises a dummy paging message.

10. The communication node of claim 1 , wherein the controller is further configured to identify that a communications connection is required for the mobile communication device and wherein the or at least one said paging message comprises a paging message in pursuance of the communications connection with said mobile communication device.

11. The communication node of claim 1 , wherein said further information identifies a respective time at which said mobile communication device was located in said at least one cell.

12. The communication node of claim 1 , wherein said further information comprises information identifying a time elapsed since a connection between said mobile communication device and said communication node was released.

13. The communication node of claim 1 , wherein said further information comprises information identifying at least one further cell in which said mobile communication device has been located previously.

14. The communication node of claim 1 , wherein said further information comprises information identifying a paging time at which said paging message or paging request is to be sent/received, wherein said communication node is operable to estimate an expected level of movement of said mobile communication device between said cells based on said paging time.

15. The communication node of claim 1 comprising a home base station gateway.

16. The communication node of claim 1 comprising a mobility management entity.

17. The communication node of claim 1 , wherein said further information comprises information relating to movement of the mobile communication device between cells when the mobile communication device is in an idle mode.

18. The communication node of claim 1 , wherein said further information comprises information relating to movement of the mobile communication device between cells when the mobile communication device is in a connected mode.

19. The communication node of claim 1 , wherein said further information comprises information relating to at least one transition of the mobile communication device between operating modes (e.g. between an idle mode and a connected mode).

20. The communication node of claim 1 , wherein said information identifying at least one cell and/or said further information comprises a cell ID.

21. A communication node for a communication network, the communication node comprising:
a controller, comprising one or more processors, configured to:
identify that paging is required for a mobile communication device;
obtain information identifying at least one cell in which said mobile communication device has been located previously and obtain further information relating to at least one of movement of the mobile communication device between cells and a time when said mobile communication device was located in said at least one cell;
define a number of sets, each set comprising at least one cell in which to seek said mobile communication device, based on said obtained information wherein said sets include a first set comprising a first cell which the mobile communication device was most recently connected to and neighbouring cells of the first cell, wherein the neighbouring cells are selected based on said further information relating to at least one of movement of the mobile communication device between cells and the time when said mobile communication device was located in said at least one cell; and
initiate transmission of a respective paging message for said m

Assignees

• Nec Corp

Inventors

• Ahluwalia Jagdeep Singh
• Kawaguchi Kenji
• Gupta Neeraj
• Kozuka Hideki

Classifications

• H04W68/04 Primary

  multi-step notification using statistical or historical mobility data · CPC title

• H04W84/027

  providing paging services · CPC title

• H04W68/02

  Arrangements for increasing efficiency of notification or paging channel · CPC title