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Compression of signals in base transceiver systems

一种基站收发机、基站的技术，应用在多个站之间的通信、传输系统、无线通信等方向，能够解决推迟升级已有数据链路等问题

Active Publication Date: 2011-04-27
INTEGRATED DEVICE TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compressing data prior to transmission over serial data links allows providers to meet these requirements by increasing the capacity of existing data links, potentially eliminating or at least postponing the need to upgrade existing data links

Method used

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  • Compression of signals in base transceiver systems
  • Compression of signals in base transceiver systems
  • Compression of signals in base transceiver systems

Examples

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Embodiment Construction

[0057] The following describes how compression and decompression are incorporated into a base transceiver system in accordance with the present invention. Example architectures include general purpose base stations, OBSAI or CPRI base stations, and compression and decompression in distributed antenna systems. A preferred method of compression and decompression applied to signal samples processed by the transceiver system is then described.

[0058] Figure 1a is a block diagram of a generic base station architecture incorporating compression and decompression according to the present invention. The BTS architecture includes a base station processor 100 connected to an RF unit 150 via one or more serial data links 140 . This generic architecture can be used for any air interface standard employed by wireless communication networks, including GSM / EDGE, CDMA-based modulation formats, OFDM-based modulation formats such as WiMax, and other signal modulation formats that may evolve...

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Abstract

A signal compression method and apparatus for a base transceiver system (BTS) in a wireless communication network provides efficient transfer of compressed signal samples over serial data links in the system. For the uplink, an RF unit of the BTS compresses signal samples resulting from analog to digital conversion of an analog signal received via an antenna. The RF unit transfers the compressed signal samples over the serial data link to the base station processor where they are decompressed prior to the normal signal processing operations. For the downlink, the base station processor compresses signal samples and transfers the compressed signal samples over the serial data link to the RF unit. The RF unit decompresses the compressed samples and converts the decompressed samples to an analog signal for transmission over an antenna. Compression and decompression can be incorporated into operations of conventional base stations and distributed antenna systems.

Description

technical field [0001] The present invention relates to the compression and decompression of signals in a transceiver system of a wireless communication network, and more particularly to serial communication between a base station processor and one or more radio frequency (RF) units passing through the transceiver system. Signal samples are compressed prior to transmission over the data link. Background technique [0002] A transceiver system in a wireless communication network performs control functions to direct the communication of signals between subscribers or terminals and with external networks. Typical operations include receiving RF signals, converting them to signal data, performing various control and signal processing operations on the signal data, converting the signal data to RF signals, and transmitting the RF signals to wireless subscribers. A transceiver system in a wireless communication network includes a base station and a distributed antenna system (DAS...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26
CPCH04B1/18H04W28/06H04W92/10H04B1/40H04W88/085H03M7/30
Inventor 阿尔伯特·W·魏格纳
Owner INTEGRATED DEVICE TECH INC