Dynamic antenna selection in a wireless device

A wireless device and antenna technology, applied in the field of communication supported by wireless communication devices, can solve problems such as the number of antennas, space constraints, etc.

Inactive Publication Date: 2012-09-12
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The number of antennas on a wireless device may be limited due to space constraints and coupling issues

Method used

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  • Dynamic antenna selection in a wireless device
  • Dynamic antenna selection in a wireless device
  • Dynamic antenna selection in a wireless device

Examples

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Embodiment Construction

[0022] figure 1 A wireless communication device 110 is shown capable of communicating with multiple wireless communication networks. These wireless networks may include one or more wireless wide area networks (WWAN) 120 and 130, one or more wireless local area networks (WLAN) 140 and 150, one or more wireless personal area networks (WPAN) 160, one or more broadcast networks 170. One or more satellite positioning systems 180, figure 1 Other networks and systems not shown in, or any combination of the above. The terms "network" and "system" are often used interchangeably. A WWAN may be a cellular network.

[0023] Both cellular networks 120 and 130 may be CDMA, TDMA, FDMA, OFDMA, SC-FDMA, or some other network. A CDMA network may implement a radio technology or air interface such as Universal Terrestrial Radio Access (UTRA), cdma2000, and so on. UTRA includes Wideband-CDMA (W-CDMA) and other variants of CDMA. cdma2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 ca...

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PUM

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Abstract

Techniques for supporting a plurality of radios (240) on a wireless device (110) with a limited number of antennas (210) are described. In one design, at least one radio may be selected from among the plurality of radios on the wireless device. At least one antenna may be selected for the at least one radio from among a plurality of antennas, e.g., based on a configurable mapping of the plurality of radios to the plurality of antennas. One or more antennas may be shared between radios to reduce the number of antennas. The at least one radio may be connected to the at least one antenna, e.g., via a switchplexer (220). Antenna selection may be performed dynamically (e.g., when the at least one radio becomes active, or when a change in performance of the at least one radio is required) such that good performance can be obtained.

Description

[0001] This application claims priority to U.S. Provisional Application Serial No. 61 / 288,801, entitled "METHOD AND APPARATUS FOR ANTENNA SWITCHING IN A WIRELESS SYSTEM," filed December 21, 2009, and assigned to its assignee and is incorporated herein by reference. technical field [0002] The present invention relates generally to communications, and more specifically, the present invention relates to techniques for supporting communications by wireless communication devices. Background technique [0003] Wireless communication networks are widely deployed to provide various communication content such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing available network resources. Examples of such multiple-access networks include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FD...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08H04B7/06H04B17/00
CPCH01Q1/243H01Q3/24H01Q9/14H01Q21/28H04B7/0608H04B7/0691H04B7/0805H04B7/0834H04B7/0874H04B17/21H04B7/0814
Inventor R·D·维特费尔特G·克里希克斯
Owner QUALCOMM INC
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