Method and apparatus for determining output transmit power for an access channel in a wireless communication network

A technology for accessing channels and communication networks. It is used in wireless communication, transmission control/balance, power management, etc., and can solve problems such as system resource waste.

Active Publication Date: 2008-12-24
QUALCOMM INC
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Transmitting all radios on the access channel based on conservative controls imposed or suggested by the network often leads to wasting valuable system resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for determining output transmit power for an access channel in a wireless communication network
  • Method and apparatus for determining output transmit power for an access channel in a wireless communication network
  • Method and apparatus for determining output transmit power for an access channel in a wireless communication network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs.

[0020] The techniques described herein can be used in various wireless multiple access communication networks such as CDMA networks, TDMA networks, FDMA networks, Orthogonal Frequency Division Multiple Access (OFDMA) networks, Single Carrier Frequency Division Multiple Access (SC-FDMA) networks, etc. . A CDMA network may implement one or more radio access technologies (RATs) such as cdma2000, Wideband-CDMA (W-CDMA), and so on. cdma2000 covers IS-95, IS-2000 and IS-856 standards. A TDMA network may implement Global System for Mobile Communications (GSM), Digital Advanced Mobile Phone System (D-AMPS), or some other RAT, GSM, and W-CDMA, all of which are described in a patent application from the 3rd Generation Partnershi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A wireless device stores historical information for a prior access attempt and uses this information to lower the output transmit power for a current access attempt on an access channel. The historical information may include RF conditions for the prior access attempt, the performance for the prior access attempt, and a power value used for the prior access attempt. The power value may be a power adjustment or an initial power level. For the current access attempt, the wireless device obtains the historical information, determines the current RF conditions, and determines a power value for this access attempt based on the current RF conditions and the historical information. The wireless device determines the output power for each access probe based on the power value and other applicable parameters and sends each access probe at the determined output power. The wireless device updates the historical information upon completing the access attempt.

Description

technical field [0001] The present disclosure relates generally to communications, and more specifically, to techniques for transmission over access channels in wireless communications networks. Background technique [0002] Wireless multiple-access communication networks are widely deployed to provide various communication services such as voice, packet data, video, broadcast, messaging, and so on. These networks can support communication for multiple wireless devices, such as cellular telephones, by sharing available system resources. Examples of these multiple-access networks include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, and Frequency Division Multiple Access (FDMA) networks. [0003] To gain access to a multiple-access network and for other purposes, wireless devices typically transmit on access channels. For example, a wireless device may transmit on an access channel to register with the network when the device ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04B7/005H04W52/00H04W52/22H04W52/36H04W52/48H04W52/50
CPCH04W52/226H04W52/362H04W52/48H04W52/50H04W52/221
Inventor 汤姆·金阮鲍杰伊·王
Owner QUALCOMM INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap