Replies to post #419685 on InterDigital Inc (IDCC)

[Gamco]

United States Patent 9,807,706
Shin , et al. October 31, 2017

Power control for devices having multiple antennas


Abstract

Power control for devices having multiple transmit antennas are disclosed, including power control methods for Physical Uplink Control Channel (PUCCH) and Sounding Reference Signal (SRS) transmissions for a wireless transmit/receive unit (WTRU). The PUCCH and SRS power control methods include selecting a multiple input multiple output (MIMO) mode and changing the power of the PUCCH or SRS transmission based on the selected MIMO mode. Another power control method estimates an antenna gain imbalance (AGI) for a WTRU having at least two transmit antennas. The AGI is based on measuring a Reference Signal Received Power (RSRP) on each transmit antenna. Each transmit antenna is then scaled by an AGI scaling factor based on the estimated AGI.



Inventors:
Shin; Sung-Hyuk (Northvale, NJ), Stern-Berkowitz; Janet A. (Little Neck, NY), Koo; Changsoo (Melville, NY), Beluri; Mihaela C. (Jericho, NY)

Applicant:


Name

City

State

Country

Type


INTERDIGITAL PATENT HOLDINGS, INC.
Wilmington
DE
US


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


Family ID:
1000002923567

Appl. No.:
14/690,658

Filed:
April 20, 2015


Prior Publication Data






Document Identifier

Publication Date

US 20150230190 A1 Aug 13, 2015



Related U.S. Patent Documents









Application Number

Filing Date

Patent Number

Issue Date

12894819 Sep 30, 2010 9031146
61248203 Oct 2, 2009




Current U.S. Class: 1/1
Current CPC Class: H04W 52/325 (20130101); H04B 7/0413 (20130101); H04B 7/0689 (20130101); H04W 72/0413 (20130101); H04W 52/146 (20130101); H04W 52/42 (20130101); H04B 7/0871 (20130101)
Current International Class: H04W 52/32 (20090101); H04W 72/04 (20090101); H04W 52/14 (20090101); H04B 7/04 (20170101); H04B 7/0413 (20170101); H04W 52/42 (20090101); H04B 7/08 (20060101); H04B 7/06 (20060101)

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