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Mobile station device, and upstream circuit power control method

A technology of transmission power control and transmission power, which is applied in power management, wireless communication, multiplexing communication, etc., and can solve problems such as transmission power reduction

Inactive Publication Date: 2007-08-15
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, for example, in the technology disclosed in Patent Document 1, when soft handover is performed, when TPC commands are transmitted from a plurality of base station devices, if at least one base station device instructs to reduce the transmission power, the mobile station device selects the TPC command of the base station device and uses Send power reduction

Method used

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  • Mobile station device, and upstream circuit power control method
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  • Mobile station device, and upstream circuit power control method

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Experimental program
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Embodiment approach 1

[0038] FIG. 1 is a block diagram showing the main configuration of a base station apparatus according to Embodiment 1 of the present invention. As shown in the figure, the base station apparatus according to this embodiment includes an RF (Radio Frequency: radio frequency) receiving unit 100, a demodulating unit 110, an error correction decoding unit 120, a channel quality measuring unit 130, a TPC command generating unit 140, an ACK / NACK generation unit 150 , error correction coding unit 160 , modulation unit 170 and RF transmission unit 180 .

[0039] The RF receiving section 100 receives an uplink packet transmitted from a mobile station device through an antenna, and performs predetermined radio reception processing (frequency down conversion, A / D conversion, etc.) on the received packet.

[0040] Demodulation section 110 demodulates the received packet and inputs it to error correction decoding section 120 and channel quality measurement section 130 .

[0041] The error...

Embodiment approach 2

[0082] A feature of Embodiment 2 of the present invention is that the number of ACKs transmitted within a predetermined period of time is used as the score of the base station device, and the TPC command from the base station device that has sent the most ACKs has the highest priority, and the mobile station device transmits Power Control.

[0083] The configuration of the base station apparatus according to this embodiment is the same as that of the base station apparatus ( FIG. 1 ) according to Embodiment 1, and therefore description thereof will be omitted. In addition, although the configuration of the mobile station apparatus according to this embodiment is the same as that of the mobile station apparatus according to Embodiment 1 ( FIG. 2 ), only the internal configuration of TPC command selection section 240 is different from Embodiment 1.

[0084] Therefore, the internal configuration of TPC command selection section 240 of the mobile station device according to this e...

Embodiment approach 3

[0106] The feature of Embodiment 3 of the present invention is that the ACK and NACK allocation values ​​within a predetermined time are divided into points, the sum of the points is taken as the score of the base station apparatus, and the priority of the TPC command from the base station apparatus with the highest score is given the highest priority. , whereby the mobile station device performs transmission power control.

[0107] The configuration of the base station apparatus according to this embodiment is the same as that of the base station apparatus ( FIG. 1 ) according to Embodiment 1, and therefore description thereof will be omitted. In addition, although the configuration of the mobile station apparatus according to this embodiment is the same as that of the mobile station apparatus according to Embodiment 1 ( FIG. 2 ), only the internal configuration of TPC command selection section 240 is different from Embodiment 1.

[0108] Therefore, the internal configuration...

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Abstract

A mobile station device for selecting a TPC command to improve the transmission quality of a packet in an upstream circuit more reliably, so that it reduces the re-transmission in the upstream circuit to improve a sector throughput. In this mobile station device, a demodulate unit (210) outputs a received signal of each base station device to an error correction decode unit (220) and a TPC command select unit (240). The error correction decode unit (220) outputs an ACK / NACK of each base station device to a data re-transmission control unit (230) and the TPC command select unit (240). The TPC command select unit (240) selects the TPC command of the highest priority on the basis of the information of the ACK / NACK. A transmission power control unit (280) determines the transmission power according to the contents of the TPC command of the highest priority. Moreover, the transmission power control unit (280) determines the transmission power by an or-of-down method, in case a plurality of TPC commands of the highest priority are outputted from the TPC command select unit (240).

Description

technical field [0001] The present invention relates to a mobile station device and an uplink transmission power control method, and more particularly to a mobile station device and an uplink transmission power control method for performing soft handover when moving between cells. Background technique [0002] In recent years, in W-CDMA (Wideband-Code Division Multiple Access), HSUPA (High Speed ​​Uplink Packet Access) has been studied as a transmission standard for increasing the speed of uplink packet communication. In HSUPA, E-DCH (Enhanced-Dedicated CHannel) is set as a dedicated channel for transmitting uplink packets. [0003] The mobile station device transmits a packet to the base station device through this E-DCH, but in general, since the transmission power suitable for the packet transmission of the mobile station device varies depending on the distance from the mobile station device to the base station device, in the E-DCH, Transmission power control (TPC: Trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04J13/00H04L1/00H04L1/16H04W52/04H04W52/26
CPCH04W52/48H04W52/146H04W52/40
Inventor 段劲松鹿山英则
Owner PANASONIC CORP