Invention Grant
US08576935B2 Adaptive pilot structure to assist channel estimation in spread spectrum systems
有权
自适应导频结构，用于在扩频系统中辅助信道估计
- Patent Title: Adaptive pilot structure to assist channel estimation in spread spectrum systems
- Patent Title (中): 自适应导频结构，用于在扩频系统中辅助信道估计
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Application No.: US13633603Application Date: 2012-10-02
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Publication No.: US08576935B2Publication Date: 2013-11-05
- Inventor: Phong Nguyen
- Applicant: NEC Corporation
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Priority: AU2005904681 20050826; AU2006203697 20060825
- Main IPC: H04K1/10
- IPC: H04K1/10
Abstract:
The present invention relates generally to methods for generating a dynamic pilot symbol structure in spread spectrum communication systems, and in particular to the use of pilot symbols by user equipment in channel estimation. In one form, the method includes, allocating basic pilot symbols at the beginning of each data chunk and spread over the plurality of sub-carrier frequencies; and selectively replacing data symbols in each data chunk with adaptive pilot symbols according to the speed of the user equipment.
Public/Granted literature
- US20130070678A1 ADAPTIVE PILOT STRUCTURE TO ASSIST CHANNEL ESTIMATION IN SPREAD SPECTRUM SYSTEMS Public/Granted day:2013-03-21
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