InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,756,550
Pasad , et al. September 5, 2017

DL backhaul control channel design for relays


Abstract

Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these. Also described are methods and apparatus for optimizing signaling overheads by avoiding R-PCFICH and minimizing bits needs for resource allocation.



Inventors:
Pasad; Kalpendu R. (Cupertino, CA), Shin; Sung-Hyuk (Northvale, NJ), Beluri; Mihaela C. (Jericho, NY), Rudolf; Marian (Montreal, CA), Adjakple; Pascal M. (Great Neck, NY), Haim; John W. (Baldwin, NY)

Applicant:


Name

City

State

Country

Type


INTERDIGITAL TECHNOLOGY CORPORATION
Wilmington
DE
US


Assignee:
InterDigital Technology Corporation (Wilmington, DE)


Family ID:
1000002814793

Appl. No.:
14/621,724

Filed:
February 13, 2015


Prior Publication Data






Document Identifier

Publication Date

US 20150163722 A1 Jun 11, 2015



Related U.S. Patent Documents









Application Number

Filing Date

Patent Number

Issue Date

12855331 Aug 12, 2010 8976806
61256159 Oct 29, 2009
61234124 Aug 14, 2009




Current U.S. Class: 1/1
Current CPC Class: H04W 40/22 (20130101); H04B 7/155 (20130101); H04L 5/0053 (20130101); H04L 5/0094 (20130101); H04W 72/042 (20130101); H04W 88/04 (20130101); H04W 72/04 (20130101); H04W 72/0406 (20130101); H04W 84/047 (20130101)
Current International Class: H04W 40/22 (20090101); H04W 88/04 (20090101); H04L 5/00 (20060101); H04B 7/155 (20060101); H04W 84/04 (20090101); H04W 72/04 (20090101)

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