华为LTE MIMO特性

文档发布

目 录

1 文档介绍 ..................................................................................................................................... 1-1

1.1 范围 ............................................................................................................................................. 1-1

1.2 目标读者 ...................................................................................................................................... 1-1

1.3 变更信息 ...................................................................................................................................... 1-1

2 MIMO 概述 .................................................................................................................................. 2-1

2.1 MIMO 的定义 ................................................................................................................................ 2-1

2.2 MIMO 的增益 ................................................................................................................................ 2-1

2.3 MIMO 技术分类 ............................................................................................................................. 2-2

2.4 MIMO 特性和MIMO 技术对应关系 ............................................................................................... 2-3

3 多天线接收 ................................................................................................................................. 3-1

3.1 多天线接收概述 ............................................................................................................................ 3-1

3.2 接收分集模式 ............................................................................................................................... 3-1

3.2.1 接收分集原理 ....................................................................................................................... 3-1

3.2.2 接收合并............................................................................................................................... 3-2

3.3 多用户虚拟MIMO 模式 ................................................................................................................. 3-5

3.3.1 多用户虚拟MIMO 原理 ........................................................................................................ 3-5

3.3.2 多用户虚拟MIMO 的接收合并 ............................................................................................. 3-6

3.3.3 多用户虚拟MIMO 的用户配对 ............................................................................................. 3-6

3.4 自适应方案切换 ............................................................................................................................ 3-7

4 多天线发射 ................................................................................................................................. 4-1

4.1 多天线发射概述 ............................................................................................................................ 4-1

4.2 发射分集 ...................................................................................................................................... 4-2

4.2.1 开环发射分集 ....................................................................................................................... 4-2

4.2.2 闭环发射分集 ....................................................................................................................... 4-3

4.3 空间复用 ...................................................................................................................................... 4-3

4.3.1 空间复用原理 ....................................................................................................................... 4-3

4.3.2 开环空间复用 ....................................................................................................................... 4-7

4.3.3 闭环空间复用 ....................................................................................................................... 4-7

4.4 多天线发射工作模式 ..................................................................................................................... 4-8

4.4.2 固定配置传输模式 ................................................................................................................ 4-8

4.4.3 自适应配置传输模式 ............................................................................................................ 4-9

5 相关特性 ..................................................................................................................................... 5-1

5.1 LBFD-00202001 UL 2-Antenna Receive Diversity ........................................................................ 5-1

5.2 LOFD-001005 UL 4-Antenna Receive Diversity ........................................................................... 5-1

5.3 LOFD-001012 UL Interference Rejection Combining ................................................................... 5-1

5.4 LOFD-001002 UL 2x2 MU-MIMO.................................................................................................. 5-1

eRAN

MIMO 目 录

文档版本 06 (2013-05-20) 华为专有和保密信息

版权所有 © 华为技术有限公司

iii

5.5 LOFD-001058 UL 2x4 MU-MIMO.................................................................................................. 5-2

5.6 LOFD-001001 DL 2x2 MIMO ........................................................................................................ 5-3

5.7 LOFD-001003 DL 4x2 MIMO ........................................................................................................ 5-3

5.8 LOFD-001060 DL 4x4 MIMO ........................................................................................................ 5-4

6 对网络的影响 .............................................................................................................................. 6-1

6.1 LBFD-00202001 UL 2-Antenna Receive Diversity ........................................................................ 6-1

6.2 LOFD-001005 UL 4-Antenna Receive Diversity ........................................................................... 6-1

6.3 LOFD-001012 UL Interference Rejection Combining ................................................................... 6-1

6.4 LOFD-001002 UL 2x2 MU-MIMO.................................................................................................. 6-1

6.5 LOFD-001058 UL 2x4 MU-MIMO.................................................................................................. 6-2

6.6 LOFD-001001 DL 2x2 MIMO ........................................................................................................ 6-2

6.7 LOFD-001003 DL 4x2 MIMO ........................................................................................................ 6-2

6.8 LOFD-001060 DL 4x4 MIMO ........................................................................................................ 6-3

7 工程指导（多天线接收-接收分集） ......................................................................................... 7-1

7.1 开通多天线接收分集的建议 .......................................................................................................... 7-1

7.2 部署多天线接收分集前信息搜集 ................................................................................................... 7-1

7.3 部署多天线接收分集的网络规划 ................................................................................................... 7-2

7.4 部署多天线接收分集 ..................................................................................................................... 7-2

7.4.1 部署多天线接收分集的要求.................................................................................................. 7-2

7.4.2 部署多天线接收分集的数据准备 .......................................................................................... 7-3

7.4.3 部署多天线接收分集的注意事项 .......................................................................................... 7-5

7.4.4 安装多天线接收分集的相关硬件 .......................................................................................... 7-6

7.4.5 激活多天线接收分集 ............................................................................................................ 7-7

7.4.6 开通观测多天线接收分集 ..................................................................................................... 7-9

7.4.7 调整多天线接收分集 ............................................................................................................ 7-9

7.5 维护多天线接收分集 ................................................................................................................... 7-10

7.5.1 监控多天线接收分集 .......................................................................................................... 7-10

7.5.2 优化多天线接收分集参数 ................................................................................................... 7-10

7.5.3 处理多天线接收分集故障 ................................................................................................... 7-10

8 工程指导（多天线接收-多用户虚拟MIMO） ......................................................................... 8-1

8.1 开通多用户虚拟MIMO 的建议 ...................................................................................................... 8-1

8.2 部署多用户虚拟MIMO 前信息搜集 ............................................................................................... 8-1

8.3 部署多用户虚拟MIMO 的网络规划 ............................................................................................... 8-1

8.4 部署多用户虚拟MIMO .................................................................................................................. 8-1

8.4.1 部署多用户虚拟MIMO 的要求 ............................................................................................. 8-1

8.4.2 部署多用户虚拟MIMO 的数据准备 ...................................................................................... 8-2

8.4.3 部署多用户虚拟MIMO 注意事项 ......................................................................................... 8-3

8.4.4 安装部署多用户虚拟MIMO 的硬件 ...................................................................................... 8-3

8.4.5 激活多用户虚拟MIMO ......................................................................................................... 8-3

eRAN

MIMO 目 录

文档版本 06 (2013-05-20) 华为专有和保密信息

版权所有 © 华为技术有限公司

iv

8.4.6 开通观测多用户虚拟MIMO .................................................................................................. 8-4

8.4.7 调整多用户虚拟MIMO ......................................................................................................... 8-4

8.5 维护多用户虚拟MIMO .................................................................................................................. 8-4

8.5.1 监控多用户虚拟MIMO ......................................................................................................... 8-4

8.5.2 优化多用户虚拟MIMO 参数 ................................................................................................. 8-4

8.5.3 处理多用户虚拟MIMO 故障 ................................................................................................. 8-5

9 工程指导（多天线发射） .......................................................................................................... 9-1

9.1 开通多天线发射的建议 ................................................................................................................. 9-1

9.2 部署多天线发射前信息搜集 .......................................................................................................... 9-1

9.3 部署多天线发射的网络规划 .......................................................................................................... 9-2

9.4 部署多天线发射 ............................................................................................................................ 9-3

9.4.1 部署多天线发射的要求 ......................................................................................................... 9-3

9.4.2 部署多天线发射的数据准备.................................................................................................. 9-4

9.4.3 部署多天线发射的注意事项.................................................................................................. 9-8

9.4.4 安装部署多天线发射的相关硬件 .......................................................................................... 9-8

9.4.5 激活多天线发射 .................................................................................................................... 9-9

9.4.6 开通观测多天线发射 .......................................................................................................... 9-13

9.4.7 调整多天线发射 .................................................................................................................. 9-21

9.4.8 MML 配置 ............................................................................................................................ 9-22

9.4.9 CME 批量配置 .................................................................................................................... 9-22

9.5 维护多天线发射 .......................................................................................................................... 9-23

9.5.1 监控多天线发射 .................................................................................................................. 9-23

9.5.2 优化多天线发射参数 .......................................................................................................... 9-24

9.5.3 处理多天线发射故障 .......................................................................................................... 9-24

10 参数 ......................................................................................................................................... 10-1

11 性能指标 ................................................................................................................................. 11-1

12 术语 ......................................................................................................................................... 12-1

13 参考文档 ................................................................................................................................. 13-1