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Method for compressing signals in frequency and downstream signal compression processing system

A technology for compressing signals and signals, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problems of high cost of deploying traditional access networks, and achieve the effect of simple implementation and low cost complexity

Active Publication Date: 2017-02-08
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] With the rapid growth of mobile Internet services, the cost of deploying traditional access networks is getting higher and higher for mobile operators to maintain their competitive advantage

Method used

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  • Method for compressing signals in frequency and downstream signal compression processing system
  • Method for compressing signals in frequency and downstream signal compression processing system
  • Method for compressing signals in frequency and downstream signal compression processing system

Examples

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Embodiment Construction

[0034] figure 1 A flowchart of a method for compressing a signal in frequency in a baseband processing unit according to an embodiment of the present invention is shown.

[0035] In this embodiment, the remote radio head has 8 antennas, so there are 8 channels between the remote radio head and the baseband processing unit, which respectively correspond to the 8 antennas. Here, since the beamforming technology will be applied to the TM7 and TM8 transmission modes in the TD-LTE system, this will be described as an example.

[0036] It should be pointed out here that although the description is based on an 8-antenna scenario in this document. However, the present invention is applicable to any multi-antenna beamforming scenario (for example, 4 antennas), and the 8 antennas here are only used as an example.

[0037] Such as figure 1As shown, in step S101, the baseband processing unit receives 8 uplink sounding reference signals from the remote radio head via 8 channels, wherein...

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Abstract

The invention provides a method for compressing signals from frequencies and a downlink signal compressing system. Through the adoption of a preferable technical scheme which is provided by the invention, beam forming factors which are in one-to-one correspondence with channels are determined in a base band processing unit, and signals and the beam forming factors are transmitted to a remote radio frequency head together; at the remote radio frequency head, the beam forming factors are multiplied by the corresponding signals. Therefore, the compressing rate is obviously increased, and the requirement for a band width between the base band processing unit and the remote radio frequency head is lowered. Preferably, various existing transmission modes are integrated, and dynamic transmission mode recognition and decompression method switching can be implemented through a transmission mode indication frame header.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method for compressing signals on frequency and a system for compressing and processing downlink signals. Background technique [0002] With the rapid growth of mobile Internet services, the cost of deploying traditional access networks is getting higher and higher for mobile operators to maintain their competitive advantage. In order to reduce network construction costs and provide users with high-quality services, many mobile operators and equipment suppliers have begun to consider more attractive solutions. The current popular solutions are based on distributed antennas and centralized baseband processing architectures, such as China Mobile's Cloud Access Network (C-RAN) and Alcatel-Lucent's LightRadio. With the access network architecture based on centralized baseband processing, the demand for base station sites can be greatly reduced, and the baseband processing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06
Inventor 唐彦波徐朝军倪威冷晓冰沈钢韩锋
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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