InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,749,877
Cave , et al. August 29, 2017

Method for detecting radio link failure for transmission over enhanced dedicated channel in a CELL.sub.--FACH state


Abstract

A method and apparatus are used for detecting a radio link (RL) failure and a post verification process. A quality of a downlink fractional dedicated physical channel (F-DPCH) is monitored once a transmission on an enhanced dedicated channel (E-DCH) has begun. It is determined whether the quality of the downlink F-DPCH is below a predefined threshold. If the quality is below the predefined threshold, then an occurrence of an RL failure is declared and a transmission over the E-DCH in a cell forward access channel (CELL_FACH) state is terminated. In a case of the post verification failure, E-DCH resources are released.



Inventors:
Cave; Christopher (Dollard-des-Ormeaux, CA), Kim; In H. (Norristown, PA), Pelletier; Benoit (Roxboro, CA), Marinier; Paul (Brossard, CA), Pani; Diana (Montreal, CA)

Applicant:


Name

City

State

Country

Type


INTERDIGITAL PATENT HOLDINGS, INC.
Wilmington
DE
US


Assignee:
InterDigital Patent Holdings, Inc. (Wilmington, DE)


Family ID:
1000002803680

Appl. No.:
13/729,136

Filed:
December 28, 2012


Prior Publication Data






Document Identifier

Publication Date

US 20140078892 A1 Mar 20, 2014



Related U.S. Patent Documents









Application Number

Filing Date

Patent Number

Issue Date

12259691 Oct 28, 2008 8369228
60983406 Oct 29, 2007
61047909 Apr 25, 2008




Current U.S. Class: 1/1
Current CPC Class: H04W 24/00 (20130101); H04W 36/30 (20130101); H04W 76/028 (20130101)
Current International Class: H04W 24/00 (20090101); H04W 76/02 (20090101); H04W 36/30 (20090101)

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