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RF receiver and its operation method

A technology of a radio frequency receiver and an operation method, which is applied in the directions of digital transmission systems, baseband system components, baseband systems, etc., can solve the problems of time-consuming and difficult channel equalizer coefficients, etc.

Inactive Publication Date: 2008-03-26
AVAGO TECH WIRELESS IP SINGAPORE PTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the generation of channel equalizer coefficients is a difficult and time-consuming process

Method used

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  • RF receiver and its operation method
  • RF receiver and its operation method
  • RF receiver and its operation method

Examples

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Embodiment Construction

[0107]1 is a system diagram of a portion of a cellular wireless communication system 100 supporting wireless terminals operating in accordance with the present invention. The cellular wireless communication system 100 includes a public switched telephone network (PSTN) interface 101 (e.g., a mobile switching center), a wireless network packet data network (N / W) including GPRS support nodes, EDGE support nodes, WCDMA support nodes and other components PDN) 102, Radio Network Controller / Base Station Controller (RNC / BSC) 152 and 154 and Base Stations / Nodes 103, 104, 105 and 106. The wireless network packet data network 102 is connected to additional private and public data networks 114 (eg, the Internet, a wide area network, a local area network, etc.). A conventional voice terminal 121 is connected to the PSTN 110 . A Voice over Internet Protocol (VoIP)-based terminal 123 and a personal computer 125 are connected to the Internet / LAN 114 . The PSTN interface 101 is connected to...

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Abstract

A system for processing radio frequency (RF) signals includes a searcher and a plurality of Cluster Path Processor (CPPs). The searcher detects a maximum signal energy level and position of at least one of a plurality of individual distinct path signals in a signal cluster of a first information signal, wherein at least a portion of the plurality of individual distinct path signals is received within a duration of a corresponding delay spread. The sampling position is used as a starting sampling location by the plurality of CPPs, including a first information signal CPP and a second information signal CPP. Fine sampling positions of the plurality of CPPs are based upon channel energy estimates for the plurality of individual distinct path signals. CPP outputs are employed to produce channel estimates, which are themselves used in subsequent equalization operations. Sampling positions may change over time in order to satisfy alignment criteria.

Description

technical field [0001] The present invention relates to wireless communication systems, and more particularly, to equalization of data communications by radio transceivers in wireless communication systems. Background technique [0002] Cellular wireless communication systems support wireless communication services in many regions of the world. A cellular wireless communication system includes a "network infrastructure" that communicates with wireless terminals within a respective service area. A typical network infrastructure includes numerous base stations distributed over a service area, each base station supporting wireless communications within a respective cell (or group of sectors). The base stations are coupled to base station controllers (BSCs), each BSC serving several base stations. Each BSC is connected to a Mobile Switching Center (MSC). Each BSC is also directly or indirectly connected to the Internet. [0003] In operation, each base station communicates w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/12H04L25/02
CPCH04L25/0212H04L25/03012H04L25/03159H04L25/022H04L25/0204H04L25/03891H04L25/03968H04L2025/03414H04L2025/03426H04B7/0854
Inventor 李俊强纳尔逊·R·索伦伯格约瑟夫·博库兹苌立枫
Owner AVAGO TECH WIRELESS IP SINGAPORE PTE
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