Wireless communication system with base station beam sweeping

A beam scanning, beam technology, applied in radio transmission systems, communication between multiple stations, diversity/multi-antenna systems, etc., can solve problems such as high cost and regional applications with difficult signal propagation properties

Inactive Publication Date: 2003-03-12
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In efforts to increase capacity, cells are often divided into sectors or smaller cells that operate at lower power, but this approach is costly and difficult to apply in areas with widely varying signal propagation properties

Method used

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  • Wireless communication system with base station beam sweeping
  • Wireless communication system with base station beam sweeping
  • Wireless communication system with base station beam sweeping

Examples

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Embodiment Construction

[0034] 1a is an illustration of a communication system for communicating data between network 116 and subscriber stations 108 by beam scanning base station 102. FIG. The network 116 is connected to a base station controller (BSC) 114 which controls data through the base stations 102 . Although only one base station is shown, the preferred embodiment may include many base stations, each connected to BSC 114 via backhaul 118a. The base station 102 uses beam scanning techniques and is referred to herein as a beam scanning base station. Wireless systems configured in accordance with the present invention may exclusively use beam-scanned base stations or may include a mix of beam-scanned and non-beam-scanned base stations.

[0035] The information received on the backhaul 118a includes a combination of voice communications and user data communications. A property of voice communications is that delays cannot be made to maximize throughput or for error control protocol purposes. ...

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Abstract

A method and apparatus for wireless communications wherein a base station transmits a signal to sending data to a subscriber station through a signal beam that sweeps through the coverage area of the base station. User data addressed to the subscriber station is buffered until the signal beam angle of the signal beam allows efficient transmission. The base station may alter the beam sweep speed or the shape of the beam's radiation pattern over time to maximize system efficiency and capacity.

Description

technical field [0001] The present invention relates to wireless communications. In particular, the present invention relates to the use of beam scanning techniques to provide greater capacity in multi-user wireless communication systems. Background technique [0002] Today's communication systems need to support a variety of applications. One such communication system is the Code Division Multiple Access (CDMA) system, which is compliant with "TIA / EIA / IS-95 Mobile Station-Base Station CompatibilityStandard for Dual-Mode Wideband Spread Spectrum Cellular System" hereinafter referred to as IS-95 . CDMA systems allow voice and data communications between users over land-based links. Application of CDMA Technology in Multiple Access Communication Systems in US Patent No. 4,901,307, entitled "SPREAD SPECTRUMMULTIPLE ACCESS COMMUNICATION SYSTEM USING SATELLITE OR TERRESTRIALREPEAERS" and US Patent No. 5,103,459, entitled "SYSTEM AND METHOD FOR GENERATINGWAVEFORMS IN A CDMA CEL...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J99/00H01Q1/24H01Q3/26H04B7/04H04B7/06H04B7/08H04B7/26
CPCH01Q1/246H04B7/0617H04B7/0615H04B7/0408H04B7/086H01Q3/2605H04B7/26
Inventor 陈道林福韵J·赫兹曼周渔君S·A·伦比
Owner QUALCOMM INC
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