Adaptive pointing for directional antennas

A directional antenna and directional technology, applied to antennas, antenna components, polarization/direction diversity, etc., can solve problems such as increasing data rates

Inactive Publication Date: 2005-08-17
IPR LICENSING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, to double the present maximum available data rate, the number of active field units could be halved, however, this is hardly an effective way to increase the data rate since there will be little preference among users. Mechanisms

Method used

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  • Adaptive pointing for directional antennas
  • Adaptive pointing for directional antennas
  • Adaptive pointing for directional antennas

Examples

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Embodiment Construction

[0031] Preferred specific embodiments of the present invention are described below.

[0032] FIG. 1 is a block diagram of a code division multiple access (CDMA) communication system 10 . The communication system 10 is described as the shared channel resource being a wireless or broadcast channel. Although a cellular communication network is shown, it should be understood that the techniques described herein can be applied to other wireless networks, such as wireless local area networks (WLANs).

[0033] The system 10 supports wireless communication for a first group of users 20 and a second group of users 30 . The first group of users 20 are member users of typical cellular telephone devices, such as wireless handsets 40-1, 40-2 and / or cellular mobile phones 40-K disposed in vehicles. The first group of users 20 primarily uses the network in a voice mode and is thereby encrypted with successive transmissions. The user's transmission is sent from the telephone subscriber unit ...

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Abstract

A directional antenna is pointed based on a ranking process. The ranking process of choice uses both ES / NO and Pilot Power parameters as measured from a pilot signal for best overall system performance in the forward and reverse links. Using this pointing and ranking process enables adaptive pointing of the directional antenna in interference and multi-path driven environments. The pointing and ranking process may be used to select the ''best'' pointing angle for communicating with a given base station or for selecting the given base station. The process may include fine tuning techniques for use in different environments. The fine tuning may include the use of weights related to the operating environment or directivity of the directional antenna.

Description

technical field [0001] This case is related to the pointing of a directional antenna, especially a directional antenna oriented by an alignment procedure. Background technique [0002] Code Division Multiple Access (CDMA) modulation can be used to provide wireless communication between a base station and one or more field units. In a Code Division Multiple Access (CDMA) cellular system, multiple field cells can transmit and receive signals at the same frequency but with different codes to allow the direction of the signal on a per cell basis. A typical field unit is a digital cellular telephone handset or a personal computer coupled to a cellular modem. [0003] The base stations are typically interconnected to a land-based Public Switched Telephone Network (PSTN) or in the case of data systems, as in the case of an Internet gateway through an Internet Service Provider (ISP), a computer control group of wireless transceivers. The base station includes an antenna device for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/12H01Q1/24H01Q3/26H01Q3/44H01Q19/32H01Q21/20H04B7/06H04B7/08H04B7/10H04B7/26
CPCH01Q19/32H01Q1/125H01Q1/241H01Q3/2641H01Q1/1257H04B7/0617H01Q21/20H01Q1/24H01Q3/00
Inventor 肯尼士·M·盖内詹姆士·C·欧德约拿森·L·修斯葛里分·K·哥沙德
Owner IPR LICENSING INC
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