Apparatus and method for uplink power control for a wireless transmitter/receiver unit utilizing multiple carriers

A technology of wireless transmitting and receiving unit, applied in the field of wireless communication, can solve the problems of increasing the complexity of the transmission power control scheme of the wireless transmitting and receiving unit, etc.

Inactive Publication Date: 2012-01-04
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Carrier Aggregation Adds Complexity to Wireless Transmit Receive Unit (WTRU) Transmit Power Control Scheme

Method used

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  • Apparatus and method for uplink power control for a wireless transmitter/receiver unit utilizing multiple carriers
  • Apparatus and method for uplink power control for a wireless transmitter/receiver unit utilizing multiple carriers
  • Apparatus and method for uplink power control for a wireless transmitter/receiver unit utilizing multiple carriers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0240] According to yet another alternative embodiment, the equation

[0241] P calc _ PUSCH ( i , k ) = 10 ( ( 10 log 10 ( M PUSCH ( i , k ) ) + P O _ PUSCH ( j , k ...

Embodiment

[0258] CLAIMS 1. A method of determining uplink power in a wireless transmit receive unit (WTRU), the method comprising: receiving a plurality of uplink power parameters corresponding to an uplink carrier of a plurality of uplink carriers; receiving a transmit power control command corresponding to the one of the plurality of uplink carriers; determining a path loss for the one of the plurality of uplink carriers; and The plurality of power parameters, the transmission power control command and the path loss are used to determine the transmission power of the one of the plurality of uplink carriers.

[0259] 2. A method of determining maximum transmit power in a wireless transmit receive unit (WTRU), the method comprising: determining a number of power amplifiers in the WTRU; determining a maximum power for each power amplifier in the WTRU; and The maximum transmission power is determined according to the number of the power amplifiers and the maximum transmission power of eac...

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Abstract

A method and apparatus for determining uplink power in a wireless transmit receive unit (WTRU). The WTRU operates in a carrier aggregated system. The WTRU is configured to receive a plurality of uplink power parameters indexed to one of a plurality of uplink carriers and receive a transmit power control command indexed to the one of the plurality of uplink carriers. The WTRU is configured to determine a pathloss of the one of the plurality of uplink carriers and determine a transmit power for the one of the plurality of uplink carriers based on the plurality of power parameters, the transmit power control command, and the pathloss.

Description

[0001] Cross References to Related Applications [0002] This application claims application numbers 61 / 151,174, filed February 9, 2009, 61 / 152,351, filed February 13, 2009, and 61 / 234,226, filed August 14, 2009 Benefit of the US Provisional Applications, which are hereby incorporated by reference as fully set forth herein. technical field [0003] This application relates to wireless communications. Background technique [0004] Wireless communication systems employ many techniques to improve throughput and user service. One such technology is carrier aggregation and support for variable bandwidth. Another technique is to transmit uplink data and control channels simultaneously. For example, in Long Term Evolution-Advanced (LTE-A) compliant systems, uplink (UL) channels such as Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH) may be transmitted simultaneously. [0005] Carrier aggregation increases the complexity of a wireless transmit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24H04W52/14H04W52/28
CPCH04W52/146H04W52/08H04W52/10H04W52/242H04W52/281H04W52/365H04W52/16H04W52/34H04W72/0473H04W72/21
Inventor 辛承爀张国栋J·A·斯特恩-波科维茨P·J·彼得拉什基S·G·迪克J·S·利维K·J-L·潘E·巴拉M·鲁道夫S·E·泰利章修古C·A·黛妮E·M·莱尔
Owner INTERDIGITAL PATENT HLDG INC
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