InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,813,951
Terry , et al. November 7, 2017

Method and apparatus for cell update while in an enhanced cell.sub.--FACH state


Abstract

A method and apparatus for cell update while in a Cell_FACH state are disclosed. After selecting a target cell, system information is read from the target cell including high speed downlink shared channel (HS-DSCH) common system information. A radio network temporary identity (RNTI) received in a source cell is cleared and a variable HS_DSCH_RECEPTION is set to TRUE. An HS-DSCH medium access control (MAC-hs) entity is configured based on the HS-DSCH common system information. High speed downlink packet access (HSDPA) transmission is then received in the target cell. A CELL UPDATE message is sent to notify of a cell change. The HSDPA transmission may be received using a common H-RNTI broadcast in the system information, a reserved H-RNTI as requested in a CELL UPDATE message, or a temporary identity which is a subset of a U-RNTI. The MAC-hs entity may be reset.



Inventors:
Terry; Stephen E. (Northport, NY), Pani; Diana (Montreal, CA), Marinier; Paul (Brossard, CA), Di Girolamo; Rocco (Laval, CA), Cave; Christopher R. (Dollard-des-Ormeaux, CA)

Applicant:


Name

City

State

Country

Type


InterDigital Technology Corporation
Wilmington
DE
US


Assignee:
InterDigital Technology Corporation (Wilmington, DE)


Family ID:
1000002937753

Appl. No.:
15/225,889

Filed:
August 2, 2016


Prior Publication Data






Document Identifier

Publication Date

US 20160345213 A1 Nov 24, 2016



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Current U.S. Class: 1/1
Current CPC Class: H04W 36/0055 (20130101); H04L 1/1812 (20130101); H04L 5/0057 (20130101); H04W 36/04 (20130101); H04W 74/0833 (20130101); H04W 36/30 (20130101); H04W 36/34 (20130101); H04W 74/006 (20130101); H04W 36/10 (20130101)
Current International Class: H04W 36/00 (20090101); H04L 5/00 (20060101); H04L 1/18 (20060101); H04W 36/30 (20090101); H04W 36/34 (20090101); H04W 74/00 (20090101); H04W 74/08 (20090101); H04W 36/04 (20090101); H04W 36/10 (20090101)
Field of Search: ;370/216

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