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Output power weighting

A technology for transmitting power and communication stations, applied in power management, transmission control/balance, electrical components, etc., can solve problems such as disconnection

Inactive Publication Date: 2008-03-05
NOKIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the worst case, DTM calls may be disconnected close to the border of the cell

Method used

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  • Output power weighting
  • Output power weighting
  • Output power weighting

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Embodiment Construction

[0038] Embodiments of the present invention provide a method for preferentially allocating transmission power of a mobile station to a circuit-switched connection when the mobile station simultaneously handles a circuit-switched connection and a packet-switched connection and the signal quality is poor. Embodiments of the invention are particularly suitable for situations where the maximum transmit power of a mobile station has been reduced because the mobile station is operating on multiple time slots. In such cases, the amount by which a mobile station can increase its transmit power in response to poor signal quality will be limited to a reduced maximum transmit power. Since this limitation can be quite disruptive to circuit-switched connections, the method according to the invention makes it possible to preferentially allocate transmit power to circuit-switched connections. The transmit power of the packet-switched connection is correspondingly reduced, whereby the total t...

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Abstract

A communication station for communicating with another communication station via at least two communications connections, the communication station being arranged to allocate transmit power to each of the at least two connections in dependence on connection quality, the communication station being arranged to: transmit data over a connection of a first type with a first transmit power level and transmit data over a connection of a second type with a second transmit power level; derive an indication of connection quality; determine if the connection quality is below a predetermined quality level; and in response to the connection quality being below the predetermined quality level, preferentially allocate transmit power to the connection of the first type, the quality level preferably being determined from a codec mode instruction for the transmit direction when a multi-rate speech codec is used.

Description

technical field [0001] The invention relates to a method for controlling the transmit power of a dual transfer mode (DTM) mobile station. More specifically, the present invention relates to a power allocation method in which the transmission power of the circuit switched connection is given priority over the transmission power of the packet switched connection when the quality of the uplink connection is poor. Background technique [0002] A typical communication system is shown in FIG. 1 . A communication system, shown generally at 100 , includes a mobile station 101 in communication with a base station 102 . A plurality of base stations 102 are further connected to a Mobile Switching Center (MSC) 103 . The mobile station and the base station communicate via communication link 105 . The mobile station 105 comprises a control unit 106 for controlling the operation of the mobile station according to both instructions generated internally by the mobile station and instructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04W52/28
CPCH04W52/288H04W52/281H04W52/26H04W72/0473
Inventor J·拉雅尼米H·若基南
Owner NOKIA CORP