Method and apparatus for receive diversity control in wireless communications

A technology of receive diversity, wireless equipment, applied in wireless communication, transmission control/equalization, space transmit diversity, etc.

Active Publication Date: 2007-04-11
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One disadvantage of receive diversity is the power cost to implement and operate such a receiver
Also, the benefits of receive diversity may not always be exploited or even required

Method used

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  • Method and apparatus for receive diversity control in wireless communications
  • Method and apparatus for receive diversity control in wireless communications
  • Method and apparatus for receive diversity control in wireless communications

Examples

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Embodiment Construction

[0017] 1 is an example of a wireless communication network 100 in which multiple antenna receive diversity can be used. Mobile station 110 may be mobile or stationary, and it may communicate with one or more base stations 120 . Mobile stations 110 , also referred to herein as "mobiles," transmit and receive voice or data, or both, through one or more base stations 120 connected to a base station controller 130 . Base stations 120 and base station controllers 130 are part of a network called an access network. The base station controller 130 is connected to a wireline network 140 . The access network then transmits voice or data to and between base stations 120 . The access network may further be connected to additional networks other than the access network, such as a wired telephone system, a corporate intranet, or the Internet, all of which may form part of the wireline network 140 . The access network can transport voice and data between each visiting mobile station 110 ...

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Abstract

Receiver diversity in a wireless device is controlled in response to operating conditions, transmission requirements, and control settings. The control of diversity reduces power consumption by enabling receive diversity on given conditions. Operating conditions, transmission requirements, and control settings are used separately or used in conjunction to determine whether benefits of multi-antenna receive diversity, such as higher link capacity, higher data throughput, lower transmit power, and lower error rate, warrant the higher power cost of the diversity.

Description

[0001] This application claims priority to Provisional Application No. 60 / 550756, filed March 5, 2004, entitled "METHOD AND APPARATUS FOR RECEIVERDIVERSITY CONTROL IN WIRELESS COMMUNICATIONS," which is assigned to the assignee and is hereby expressly combined for reference. technical field [0002] The present invention relates generally to wireless communication and more particularly to multi-antenna receive diversity in wireless communication systems. Background technique [0003] Multi-antenna receive diversity refers to the processing of multiple received signals in multiple receive chains in a wireless communication device. At least two antennas provide two different input signals to the receiver unit, thereby providing received signal diversity to the communication link. In particular, multiple antennas provide spatial diversity since each multipath appears differently on each antenna. Therefore, multipath fading effects are not strongly correlated with each other be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08H04B1/00H04B7/005H04B15/00H04B17/00
CPCH04W52/42H04B7/0877H04W52/0245Y02B60/50H04W52/02Y02D30/70H04B17/309H04W24/10
Inventor F·乌卢珀纳尔G·A·布赖特B·C·巴尼斯特E·G·小蒂德曼
Owner QUALCOMM INC
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