Signal sending method, device and system

A technology for sending signals and signal sending devices, which is applied in the field of sending signals, and can solve problems such as inapplicability of multi-antenna data streams, low compression rate, and failure to consider internal transformation rules and logical associations of signals, etc.

Inactive Publication Date: 2014-01-29
无锡艾普峰华智控科技有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: in the method provided by the prior art, the CPRI signal is directly compressed in the time domain. Due to the limitation of the compression method itself, the compression rate is relatively low. Low
This is because, in the communication system, the signal data will inevitably change due to th...

Method used

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  • Signal sending method, device and system
  • Signal sending method, device and system
  • Signal sending method, device and system

Examples

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no. 1 example

[0077] see figure 2 , which is a flow chart of the first embodiment of the method for sending a signal provided by the present invention, the method includes:

[0078] S201. Receive a common public radio interface CPRI signal sent by a remote radio unit RRU.

[0079] In the first embodiment of the present invention, de-CP (Cyclic Prefix, cyclic prefix), FFT, channel separation, DMRS (Demodulation Reference Signal, demodulation reference signal) channel estimation, measurement and PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) multi-antenna equalization and other functions are all forwarded to the C-box of the signal sending device for processing. Specifically, the signal sending device is connected to the RRU, and receives the CPRI signal sent by the RRU.

[0080] S202. Perform channel separation processing on the CPRI signal, and obtain channel signals after separation processing.

[0081]After the signal sending device C-box receives the CPRI sign...

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Abstract

The invention relates to the technical field of communication, in particular to a signal sending method, device and system. The method is applied in a system provided with a radio remote unit RRU and a baseband processing unit BBU. The method includes receiving CPRI (common public radio interface) signals sent by the radio remote unit RRU; performing channel separation processing on the CPRI signals, acquiring channel signals, at least containing physical uplink shared channel signals, after the separation processing; performing multi-antenna equalization processing on the physical uplink shared channel signals; sending the processed physical uplink shared channel signals to the baseband processing unit BBU. The method has the advantages that multi-antenna data streams can be compressed, data compression rate is increased, and data transmitting cost is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and system for sending signals. Background technique [0002] In the mobile communication system, the C-RAN (Cloud Radio Access Network, cloud-based deployment of access network) system has become a technology that manufacturers and operators generally pay attention to. It is a larger-scale wireless access network that applies cloud computing technology. into the system. C-RAN centralizes the BBU (Base-band Unit, baseband processing unit) of multiple base stations through optical fiber or optical transmission network, and pulls the RRU (Radio Remote Unit, radio frequency remote unit) far away for signal coverage. Compared with the traditional deployment method, this deployment method has the advantages of reducing the cost of building a station, saving energy, facilitating maintenance, and improving the spectrum efficiency of joint transmission. ...

Claims

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Application Information

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IPC IPC(8): H04L25/03H04L25/02H04L1/06H04B7/06
CPCH04B7/0837H04L25/03H04W88/085H03M7/30H04L25/03891
Inventor 李波杰张锦芳戎璐程宏
Owner 无锡艾普峰华智控科技有限公司
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