IP Library › Granted Patent US 9,026,152
Granted Patent B2
US 9,026,152 · App. 11/913,942 · Granted May 5, 2015

System and method for paging and locating update in a network

Inventors: Anand S. Bedekar (Arlington Heights, IL); Rajeev Agrawal (Northbrook, IL); Venkat Gopikanth (Buffalo Grove, IL); Suresh Kalyanasundaram (Bangalore, IN); Vishnu Ram Ov (Trivandrum, IN)
Assignee: Google Technology Holdings LLC
H04W68/00H04W80/04
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Quick Facts
Patent No.
US 9,026,152
App. No.
11/913,942
Granted
May 5, 2015
Kind
B2
Abstract

Mobile station information is exchanged between a plurality of distributed mobility agents ( 106, 108 ). The exchange is initiated by a mobility agent ( 106 ) associated with a last known network access point ( 110 ) that has communicated with the mobile station ( 114 ). The mobile station ( 114 ) is paged from at least one network access point using an available air interface technology to interface with the mobile station ( 114 ) and using the mobile station information. No centralized controller is used in the paging.

Claims (21)

1. A method of paging a mobile station comprising:

exchanging mobile station information between a plurality of distributed mobility agents, the exchange being initiated by a mobility agent of a last known network access point that has communicated with the mobile station;

paging the mobile station from at least one network access point associated with a second mobility agent of the plurality of distributed mobility agents using an available air interface technology to interface with the mobile station and using the mobile station information;

receiving a page response from the mobile station at a second network access point associated with the second mobility agent;

upon receiving the page response from the mobile station, exchanging information between the second mobility agent associated with the second network access point and the mobility agent of the last known access point; and

sending incoming data to the mobile station via the mobility agent of the last known network access point; and

determining an identity of the mobility agent of the last known network access point that has communicated with the mobile station by the second mobility agent by sending a multicast query from the second mobility agent to a plurality of network access points.

2. The method of claim 1 wherein sending incoming data comprises sending data from the mobility agent of the last known network access point to the second mobility agent associated with the second network access point, and from the second mobility agent associated with the second network access point to the mobile station.

3. A mobility agent of a last known network access point that has communicated with a mobile station comprising:

a receiver having an input;

a transmitter having an output; and

a controller coupled to the receiver and the transmitter, the controller programmed to:

exchange mobile station information with at least a second mobility agent at the receiver and transmitter, the exchange being initiated by the mobility agent of the last known network access point that has communicated with the mobile station,

the controller further programmed to form and send control messages at the output of the transmitter to initiate paging of the mobile station,

receive a page response from the mobile station at a second network access point associated with the second mobility agent;

upon receiving the page response from the mobile station, exchange information between the second mobility agent associated with the second network access point and the mobility agent of the last known access point; and

send incoming data to the mobile station via the mobility agent of the last known network access point; and

wherein an identity of the mobility agent of the last known network access point that has communicated with the mobile station is determined by the second mobility agent by sending a multicast query from the second mobility agent to a plurality of network access points.

4. The mobility agent of claim 3 wherein the controller is further programmed to, upon receiving a control message from another mobility agent via the receiver, send a communication to an associated access point via the transmitter to cause the associated access point to page the mobile station.

5. The mobility agent of claim 3 wherein the control messages are sent to the at least second mobility agent.

6. The mobility agent of claim 3 wherein the controller is further programmed to effect a redirection of incoming data destined for the mobile station.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2014
From: MOTOROLA MOBILITY LLC
To: GOOGLE TECHNOLOGY HOLDINGS LLC
Reel/Frame 034500/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2012
From: MOTOROLA MOBILITY, INC.
To: MOTOROLA MOBILITY LLC
Reel/Frame 028829/0856 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2010
From: MOTOROLA, INC
To: MOTOROLA MOBILITY, INC
Reel/Frame 025673/0558 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 9, 2007
From: BEDEKAR, ANAND S.; AGRAWAL, RAJEEV; GOPIKANTH, VENKAT; KALYANASUNDARAM, SURESH; RAM OV, VISHNU
To: MOTOROLA, INC.
Reel/Frame 020088/0856 →
Priority Claims (1)
IN 535/KOL/2005 · Jun 21, 2005 · national
Continuity (1)
Related Publication 20080194271A1 · Aug 14, 2008