| 发明名称 |
DATA TRANSMISSION METHOD AND SYSTEM |
| 摘要 |
A data transmission method and system are provided. The data transmission method includes: transmitting, by a BBU, frequency domain data obtained by performing a multi-antenna MIMO coding, to a RRU via a CPRI; receiving, by the RRU, the frequency domain data transmitted by the BBU, via the CPRI; and performing, by the RRU, an OFDM symbol generation processing on the frequency domain data received via the CPRI, to convert the frequency domain data into time domain data. With this method, a rate of the CPRI can be significantly lowered, and a bandwidth of the CPRI can be dynamically adjusted in the communication system according to the load and the usage of frequency resources, thereby lowering the bandwidth of the CPRI. |
| 申请公布号 |
US2015117277(A1) |
申请公布日期 |
2015.04.30 |
| 申请号 |
US201514593486 |
申请日期 |
2015.01.09 |
| 申请人 |
Huawei Technologies Co., Ltd. |
发明人 |
LIU Yun |
| 分类号 |
H04L27/26;H04L5/14 |
主分类号 |
H04L27/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A data transmission method, comprising:
transmitting, by a baseband processing unit (BBU), frequency domain data obtained by performing a multi-antenna multiple input multiple output (MIMO) coding, to a remote radio unit (RRU), via a common public radio interface (CPRI); receiving, by the RRU, the frequency domain data transmitted by the BBU, via the CPRI; and performing, by the RRU, an orthogonal frequency division multiplexing (OFDM) symbol generation processing on the frequency domain data received via the CPRI, to convert the frequency domain data into time domain data. |
| 地址 |
Shenzhen CN |
