InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,839,022
Nayeb Nazar , et al. December 5, 2017

Method and apparatus for channel resource mapping in carrier aggregation


Abstract

Methods and apparatus for preventing physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) ambiguities or collisions, for example, in a multi-carrier system or when transmitting multiple streams over multiple antennas, are described. Methods may include dividing resources or groups among multiple component carriers (CCs), using and assigning unused or vacant resources to CCs, forcing usage of adaptive HARQ processes in specified scenarios, setting a value for the cyclic shift of the corresponding uplink demodulation reference signals (DMRS) to a previous value for semi-persistent scheduling, and assigning a different first resource block for semi-persistent scheduling uplink resources and random access response grants for multiple CCs.



Inventors:
Nayeb Nazar; Shahrokh (San Diego, CA), Pan; Kyle Jung-Lin (Saint James, NY), Olesen; Robert L. (Huntington, NY), Tsai; Allan Y. (Boonton, NJ)

Applicant:


Name

City

State

Country

Type


InterDigital Patent Holdings, Inc.
Wilmington
DE
US


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


Family ID:
1000002992782

Appl. No.:
14/518,684

Filed:
October 20, 2014


Prior Publication Data






Document Identifier

Publication Date

US 20150036637 A1 Feb 5, 2015



Related U.S. Patent Documents









Application Number

Filing Date

Patent Number

Issue Date

12986407 Jan 7, 2011 8867478
61307721 Feb 24, 2010
61293540 Jan 8, 2010




Current U.S. Class: 1/1
Current CPC Class: H04W 72/042 (20130101); H04L 1/1812 (20130101); H04L 1/1861 (20130101); H04L 5/0055 (20130101); H04L 5/0007 (20130101); H04L 5/0023 (20130101); H04L 5/0053 (20130101); H04L 5/001 (20130101)
Current International Class: H04J 3/22 (20060101); H04W 72/04 (20090101); H04L 1/18 (20060101); H04L 5/00 (20060101)

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