InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,854,525
Wang , et al. December 26, 2017

Method and apparatus for performing a handover in an evolved universal terrestrial radio access network


Abstract

A method and an apparatus for performing a handover in an evolved universal terrestrial radio access network (E-UTRAN) are disclosed. A wireless transmit/receive unit (WTRU) sends a measurement report to a source evolved Node B (eNB), and receives a handover command from the source eNB. The WTRU initiates reception and processing of a primary broadcast channel (P-BCH) at the target cell after receiving the handover command. The WTRU then sends a random access preamble to the target eNB, receives a random access response from the target eNB, and sends a handover complete message to the target eNB. The reception and processing of the P-BCH may be initiated immediately after receiving the handover command or after sending the handover complete message. The WTRU may apply default configuration or source cell configuration in the target cell until a target cell SFN and/or P-BCH information are acquired.



Inventors:
Wang; Peter S. (E. Setauket, NY), Zhang; Guodong (Syosset, NY), Wang; Jin (Princeton, NJ), Sammour; Mohammed (Alrabieh-Amman, JO), Somasundaram; Shankar (Sunnyvale, CA), Terry; Stephen E. (Northport, NY), Olvera-Hernandez; Ulises (Montreal, CA)

Applicant:


Name

City

State

Country

Type


INTERDIGITAL PATENT HOLDINGS, INC.
Wilmington
DE
US


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


Family ID:
1000003031434

Appl. No.:
15/350,076

Filed:
November 13, 2016


Prior Publication Data






Document Identifier

Publication Date

US 20170064628 A1 Mar 2, 2017



Related U.S. Patent Documents









Application Number

Filing Date

Patent Number

Issue Date

14664829 Mar 21, 2015 9497671
13670657 Mar 24, 2015 8989143
12492469 Dec 11, 2012 8331326
61076943 Jun 30, 2008




Current U.S. Class: 1/1
Current CPC Class: H04W 52/0229 (20130101); H04J 11/0069 (20130101); H04W 36/0055 (20130101); H04W 36/0061 (20130101); H04W 52/0216 (20130101); H04W 74/004 (20130101); H04W 74/0833 (20130101); H04W 48/10 (20130101); Y02B 60/50 (20130101); H04W 88/06 (20130101)
Current International Class: H04W 52/02 (20090101); H04J 11/00 (20060101); H04W 36/00 (20090101); H04W 74/08 (20090101); H04W 48/10 (20090101); H04W 74/00 (20090101); H04W 88/06 (20090101)
Field of Search: ;370/310-350,436-437,439,442

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