InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,967,082
Lee , et al. May 8, 2018

Method for half duplex--frequency division duplex (HD-FDD) operation in a long term evolution (LTE) FDD network


Abstract

A method and apparatus for half-duplex (HD) frequency division duplex (FDD) (HD-FDD) operation are disclosed. The method in a wireless transmit/receive unit (WTRU) includes monitoring a first frequency for all downlink sub-frames for downlink communication except during a cell specific uplink frame, retuning to a second frequency and transmitting a scheduling request (SR) during a WTRU specific period of the cell specific uplink frame, wherein the WTRU specific period is based on a duty cycle, and retuning to the first frequency and receiving an uplink grant in a subsequent sub-frame.



Inventors:
Lee; Moon-il (Melville, NY), Tsai; Allan Y. (Boonton, NJ), Sadeghi; Pouriya (San Diego, CA), Xi; Fengjun (San Diego, CA), Rudolf; Marian (Montreal, CA), Stern-Berkowitz; Janet A. (Little Neck, NY)

Applicant:


Name

City

State

Country

Type


INTERDIGITAL PATENT HOLDINGS, INC.
Wilmington
DE
US


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


Family ID:
1000003280486

Appl. No.:
15/369,633

Filed:
December 5, 2016


Prior Publication Data






Document Identifier

Publication Date

US 20170085360 A1 Mar 23, 2017



Related U.S. Patent Documents









Application Number

Filing Date

Patent Number

Issue Date

13836812 Mar 15, 2013 9515696
61612057 Mar 16, 2012
61644903 May 9, 2012




Current U.S. Class: 1/1
Current CPC Class: H04L 5/16 (20130101); H04B 1/50 (20130101); H04L 1/1819 (20130101); H04L 1/1822 (20130101); H04L 5/0048 (20130101); H04L 5/0055 (20130101); H04W 72/0446 (20130101); H04W 72/14 (20130101); H04L 5/0053 (20130101); H04L 5/0091 (20130101); H04L 1/1893 (20130101); H04L 5/0023 (20130101)
Current International Class: H04W 4/00 (20090101); H04B 1/50 (20060101); H04L 5/16 (20060101); H04L 1/18 (20060101); H04W 72/14 (20090101); H04W 72/04 (20090101); H04L 5/00 (20060101)
Field of Search: ;370/281,295,343,480

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