InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,826,443
Shaheen November 21, 2017

Method and apparatus for supporting handover from LTE/EUTRAN to GPRS/GERAN


Abstract

A method for use in a source long term evolution (LTE) mobility management entity (MME) and an MME are disclosed. The method includes receiving a relocation request from an evolved Node B (eNB), determining a handover target global system for mobile (GSM)/enhanced data rates for GSM evolution (EDGE) radio access network (GERAN) system for a handover of a wireless transmit/receive unit (WTRU) based on the received relocation request, identifying a serving General Packet Radio Service (GPRS) support node (SGSN) that controls a target GERAN cell, and forwarding the relocation request to a target SGSN.



Inventors:
Shaheen; Kamel M. (King of Prussia, PA)

Applicant:


Name

City

State

Country

Type


Shaheen; Kamel M.
King of Prussia
PA
US


Assignee:
InterDigital Technology Corporation (Wilmington, DE)


Family ID:
1000002966120

Appl. No.:
13/311,277

Filed:
December 5, 2011


Prior Publication Data






Document Identifier

Publication Date

US 20120077500 A1 Mar 29, 2012



Related U.S. Patent Documents









Application Number

Filing Date

Patent Number

Issue Date

12029532 Dec 6, 2011 8072936
60889383 Feb 12, 2007




Current U.S. Class: 1/1
Current CPC Class: H04W 36/0061 (20130101); H04W 36/0011 (20130101); H04W 36/14 (20130101); H04W 36/12 (20130101); H04W 36/0022 (20130101)
Current International Class: H04W 4/00 (20090101); H04W 36/00 (20090101); H04W 36/14 (20090101); H04L 12/28 (20060101); H04W 36/12 (20090101)

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