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Method and apparatus for regulation base station ack/nak message transmit power in a wireless communication system

A wireless communication system and technology of transmitting power, applied in the field of wireless communication systems, can solve the problems of wasting reverse link capacity and increasing communication waiting time, etc.

Inactive Publication Date: 2006-10-18
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may undesirably drain more of the mobile station's limited battery power, waste reverse link capacity, and increase communication latency

Method used

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  • Method and apparatus for regulation base station ack/nak message transmit power in a wireless communication system
  • Method and apparatus for regulation base station ack/nak message transmit power in a wireless communication system
  • Method and apparatus for regulation base station ack/nak message transmit power in a wireless communication system

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Embodiment Construction

[0013] The nature, objects and advantages of the present invention will become apparent to those skilled in the art after considering the following detailed description in conjunction with the accompanying drawings.

[0014] The present disclosure is described in the context of a wireless communication network with various base stations and mobile communication devices, among other components. The base station and the mobile communication device exchange various packet data, and may also exchange voice communication, depending on the network configuration. For each mobile communication device, there is one serving base station and zero, one, or many non-serving base stations depending on the mobile communication device's proximity to other base stations in the network. Each non-serving base station utilizes certain techniques to set the power level at which it transmits messages acknowledging receipt of packet data from the mobile communication device.

[0015] figure 1 A si...

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PUM

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Abstract

A base station (BS) (110) in a wireless network (100) establishes power levels for transmitting messages acknowledging receipt of packet data from a mobile communications device (MCD) (114). In one implementation, the BS infers whether the MCD received a given acknowledgement message by considering whether (306, 316) the next communication from the MCD comprises new packet data, and whether (310, 320) that data comprises re-transmitted data. The BS adjusts (312, 314, 322, 324) transmit power level for future acknowledgement messages according to whether the MCD received past acknowledgement messages. In a different implementation, actual / estimated transmit power from a serving base station to a given MCD is averaged (404), and increased (406) by a prescribed amount to yield a target level. Whenever the non-serving base station transmits messages acknowledging receipt of packet data from the MCD, the non-serving base station transmits (408) at the target level.

Description

technical field [0001] The present invention generally relates to wireless communication systems. In particular, the present invention relates to a method and device for adjusting the transmit power of a base station in a wireless communication system. Background technique [0002] In digital wireless communication networks, mobile stations exchange voice and packet data with base stations scattered over a wide geographical area. Voice data is about voice phone calls, while packet data is about messages involving web surfing, sending e-mail, and so on. There are additional channels that handle text messaging (eg "Short Messaging Service") as well as various other services. [0003] This information exchange is carried out over a series of different forward and reverse link channels of the wireless communication network. Each channel is defined by a combination of physical and logical parameters. The forward link is about communication from the base station to the mobile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04L1/16H04L1/18
CPCH04L1/16H04L1/1692H04W52/225H04W52/228H04W52/48H04L1/18
Inventor Y·魏T·陈
Owner QUALCOMM INC
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