Invention Grant
- Patent Title: Method for feeding back channel state information, and method and device for obtaining channel state information
- Patent Title (中): 反馈信道状态信息的方法，获取信道状态信息的方法和装置
-
Application No.: US13529383Application Date: 2012-06-21
-
Publication No.: US08995369B2Publication Date: 2015-03-31
- Inventor: Bin Li , Hui Shen , Yi Luo , Xiaodong Wang
- Applicant: Bin Li , Hui Shen , Yi Luo , Xiaodong Wang
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Slater & Matsil, L.L.P.
- Priority: CN200910254358 20091222
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04B7/06 ; H04L1/00 ; H04L25/02 ; H04L5/00 ; H04L25/03
Abstract:
Embodiments of the present invention provide a method for feeding back channel state information, and a method and a device for obtaining channel state information. The method for feeding back the channel state information includes: compressing, by a user equipment, original time domain channel state information to obtain compressed time domain channel state information; quantizing the compressed time domain channel state information to obtain a codebook index; and sending the codebook index to a base station. With the technical solutions provided by the embodiments of the present invention, the total overhead used for feeding back the channel state information from the user equipment to the base station is reduced.
Public/Granted literature
Information query
