Invention Grant
- Patent Title: Channel estimate under non-uniform reference signal pattern
- Patent Title (中): 非均匀参考信号模式下的信道估计
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Application No.: US14275803Application Date: 2014-05-12
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Publication No.: US09553706B2Publication Date: 2017-01-24
- Inventor: Tao Luo , Michael Mao Wang , Wanshi Chen , Peter Gaal , Yongbin Wei , Aleksandar Damnjanovic , Hao Xu , Taesang Yoo
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Arent Fox LLP
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04W24/02 ; H04L25/02

Abstract:
Reference signals may not uniformly span over time and/or frequency on a resource unit. For example, reference signals may non-uniformly occupy symbols of a subframe. Alternatively, reference signals normally transmitted over certain tones of a subframe may have to be punctured to avoid collisions with a PSS and/or SSS transmitted over the same tones. Consequently, a UE may only be able to use a subset of reference signal tones for performing channel estimation. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided for improving channel estimation under a non-uniform signal pattern. The apparatus indicates to a UE to utilize a subset of reference signals to derive a channel estimate for demodulating data in a specific subframe, and transmits a plurality of subframes, the plurality of subframes including the reference signals and the specific subframe, the specific subframe including a PSS and/or SSS.
Public/Granted literature
- US20140341050A1 CHANNEL ESTIMATE UNDER NON-UNIFORM REFERENCE SIGNAL PATTERN Public/Granted day:2014-11-20
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