United States Patent 9,762,356
Rudolf , et al. September 12, 2017
Systems and methods for improved uplink coverage
Abstract
Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and/or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and/or utilizing a configuration for coverage limited/power limited modes of operation. The proposed methods may be applied individually or in any combination.
Inventors:
Rudolf; Marian (Montreal, CA), Marinier; Paul (Brossard, CA), Pani; Diana (Montreal, CA), Pelletier; Ghyslain (Laval, CA), Cave; Christopher (Dollard-des-Ormeaux, CA), Iyer; Lakshmi R. (King of Prussia, PA), Fazili; Muhammad U. (Audubon, PA)
Applicant:
Name
City
State
Country
Type
INTERDIGITAL PATENT HOLDINGS, INC.
Wilmington
N/A
DE
Assignee:
InterDigital Patent Holdings, Inc. (Wilmington, DE)
Family ID:
1000002828817
Appl. No.:
14/374,504
Filed:
January 24, 2013
PCT Filed:
January 24, 2013
PCT No.:
PCT/US2013/022916
371(c)(1),(2),(4) Date:
July 24, 2014
PCT Pub. No.:
WO2013/112703
PCT Pub. Date:
August 01, 2013
Prior Publication Data
Document Identifier
Publication Date
US 20140362832 A1 Dec 11, 2014
Related U.S. Patent Documents
Application Number
Filing Date
Patent Number
Issue Date
61590292 Jan 24, 2012
61611799 Mar 16, 2012
61611972 Mar 16, 2012
Current U.S. Class: 1/1
Current CPC Class: H04L 1/1678 (20130101); H04L 1/1822 (20130101); H04L 1/1887 (20130101); H04W 72/0413 (20130101); H04W 72/0446 (20130101)
Current International Class: H04L 1/16 (20060101); H04L 1/18 (20060101); H04W 72/04 (20090101)
Field of Search: ;370/329,336,437
PPP
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