Enhanced physical layer repeater for operation in wimax systems

A repeater and processor technology, applied in the fields of isolation and operation, time slot detection and automatic gain control, synchronization, and can solve problems affecting network performance, affecting system-level performance of base station-to-subscriber links, etc.

Inactive Publication Date: 2010-01-27
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the specific gain control method must not negatively impact the system level performance of the base station to subscriber link and must not negatively impact network performance when many subscribers are operating in the system simultaneously

Method used

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  • Enhanced physical layer repeater for operation in wimax systems
  • Enhanced physical layer repeater for operation in wimax systems
  • Enhanced physical layer repeater for operation in wimax systems

Examples

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Embodiment Construction

[0021] see now figure 1 , showing an exemplary non-converting repeater 110. Repeater 110 may include a control terminal 111 connected to repeater 110 by a communication link such as link 112 (which may be an RS-232 connection or similar) for serial Communicate, for example, to configure repeater 110, collect various metrics, or similar purposes. It will be appreciated that in a production model of the repeater 110, it will be unlikely that this connection will be used, as the configuration will be done during manufacture, or the repeater 110 will be connected in the memory of, for example, a microprocessor, controller or similar automatically configured under the control of objects. The repeater 110 system may also include an external antenna 120 for communicating with one side of the TDD repeater connection (eg, base station 122 ) through a wireless interface 121 . It will be appreciated that base station 122 may refer to any infrastructure node capable of serving multiple...

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PUM

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Abstract

An exemplary method (500) and repeater (110, 210, 300) are described for repeating using a time division duplex (TDD) radio protocol. A signal is transmitted from a first station to a second station using a downlink and an uplink. The signal can be detected with detectors (309, 310, 855, 856) on the uplink or the downlink. The repeater can synchronize to time intervals associated with the detected signal that are measured during an observation period. The signal can be retransmitted from the second station to the first station if the signal is detected on the uplink and re-transmitted from the first station to the second station if the signal is detected on the downlink. A gain value associated with the downlink can be used to establish a gain value associated with the uplink.

Description

technical field [0001] The present invention relates generally to wireless networks, and in particular, the present invention relates to time slot detection and automatic gain control in Time Division Duplex (TDD) repeaters and non-frequency translating repeaters. (AGC), synchronization, isolation and manipulation. Background technique [0002] Several emerging protocols and / or specifications for Wireless Local Area Networks (commonly referred to as WLAN) or Wireless Metropolitan Area Networks (referred to as WMAN) are becoming more popular, including protocols such as 802.11, 802.16d / e and related , the related protocols are also known by such names as "WiFi", "WiMAX", Mobile WiMAX, Time Division Synchronous Code Division Multiple Access (TDS-CDMA), Broadband Wireless Access, or "WiBro" systems. Many of these protocols, such as WiBro, are becoming increasingly popular in developing countries as a low-cost alternative for providing network access in WMAN or cellular infrast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/15
CPCH04B7/15557H04B7/15535
Inventor 詹姆斯·A·小普罗克特肯尼思·M·盖尼詹姆斯·C·奥托
Owner QUALCOMM INC
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