Patent
Uplink power control algorithm
Kenneth C. Budka,Arnab Das,Kamala Murti,Yinglu Zhang +3 more
- 20 Nov 2001
178
TL;DR: In this article, a method for determining an uplink transmit power level at which to transmit a current data block over a radio link from the mobile to the base transmitter is presented.
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Abstract: In a system having a base station transmitter for transmitting data blocks to one or more mobile stations over a radio link, there is a method for determining an uplink transmit power level at which to transmit a current data block over a radio link from the mobile to the base transmitter station The method evaluates airlink quality measurements in the radio link over a measurement interval, wherein each time a message is sent to the mobile station, it is evaluated whether a specified number of uplink blocks have transmitted by the mobile station since the start of the measurement interval Based on the evaluated airlink quality measurement, the method determines the uplink transmit power level that the mobile should be using for the current block, and adjusts the transmit power level, if necessary, for the current block
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Citations
Patent
Power control for a wireless communication system utilizing orthogonal multiplexing
Arak Sutivong,Agrawal Avneesh,David Jonathan Julian +2 more
- 07 Jun 2005
TL;DR: In this paper, the authors proposed a technique for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-segment interference to neighbor base stations.
219
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Pilot signals for use in multi-sector cells
Rajiv Laroia,John L. Fan,Junyi Li +2 more
- 20 Feb 2004
TL;DR: Pilot signal transmission sequences and methods for use in a multi-sector cell are described in this paper, where pilots in different sectors are transmitted at different known power levels, while no pilot is transmitted in the adjoining sector.
210
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Method for adjusting a transmitting power in a wire-less communications network
Gwendal Simon,Joaquin Keller +1 more
- 20 Sep 2004
TL;DR: In this paper, a method for controlling a transmitting power for a transmitter in a wireless communications network consisting in identifying entities adjacent to said transmitter, identifying amongst said adjacent entities a minimum constellation associated to the transmitter, and adjusting the transmitting power of the transmitter to a minimum value, thereby enabling a message transmitted thereby to simultaneously reach the entities of the minimum constellation, peripherial entities whose minimum constellation includes the transmitter and each identified peripherial entity.
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Combined open loop/closed loop (cqi-based) uplink transmit power control with interference mitigation for e-utra
Sung-Hyuk Shin,Grieco Donald M,Olesen Robert L +2 more
- 26 Sep 2007
TL;DR: In this paper, a combined open loop and closed loop (CQI-based) transmit power control (TPC) scheme with interference mitigation for a long term evolution (LTE) wireless transmit/receive unit (WTRU) is disclosed.
178
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Methods and apparatus for determining, communicating and using information which can be used for interference control purposes
Rajiv Laroia,Junyi Li,Sundeep Rangan,Murari Srinivasan,Prashanth Hande +4 more
- 14 Oct 2005
TL;DR: In this paper, the authors measure signals transmitted from one or more base stations, e.g., base station sector transmitters, and generate gain ratios which provide information about the relative gain of the communications channels from different base station sectors to the wireless terminal.
144
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TL;DR: In this paper, a power control indicator indicating whether a first or a second type of power control adjustment should be used by the radio transceiver depending upon the determined difference is sent.
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TL;DR: In this article, a power control scheme for multiple formats (e.g., rates, transport formats) is proposed to achieve different target SNIRs for different formats for a given data channel.
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Patent
Method and apparatus for adaptive closed loop power control using open loop measurements
Prescott Tobin A
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TL;DR: In this article, a method and apparatus for controlling a parameter associated with a first signal (410) transmitted from a first station (120) to a second station (124) in a communication system (100) is presented.
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Patent
Method and system for quality-based power control in cellular communications systems
Gunnarsson Fredrik,Gustafsson Fredrik,Blom Jonas +2 more
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TL;DR: In this paper, a method and system for quality-based transmission power control in a cellular communications system are disclosed, whereby a network operator can specify the transmission quality requirements using a measurement that better reflects the actual quality perceived by the users.
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