Invention Grant
- Patent Title: Channel state information collection for wireless communication system with beamforming
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Application No.: US14854344Application Date: 2015-09-15
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Publication No.: US09853707B2Publication Date: 2017-12-26
- Inventor: Chia-Hao Yu , Ming-Po Chang , Ju-ya Chen , Jiann-Ching Guey
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC
- Current Assignee: MEDIATEK INC
- Current Assignee Address: TW Hsin-Chu
- Agency: Imperium Patent Works
- Agent Zheng Jin; Darien Wallace
- Main IPC: H04W72/00
- IPC: H04W72/00 ; H04B7/06 ; H04B7/0408 ; H04L5/00 ; H04B7/0452

Abstract:
A method of providing channel station information in a beamforming system is proposed. Reference Signal (RS) is used for channel state estimation. For fine-resolution dedicated beam with smaller spatial coverage, additional channel monitoring of coarse-resolution beams for beam fallback is applied. The joint coverage of monitored fallback beams covers a desired service area. For beam administration, fallback beams need to be evaluated and the most preferable beam is selected for use in case the currently used dedicated beam is no longer suitable. For link adaptation, at least the channel state of the selected fallback beam is evaluated and provided to a scheduler (e.g., a BS) for adapting the transmission of the selected fallback beam.
Public/Granted literature
- US20160080060A1 Channel State Information Collection for Wireless Communication System with Beamforming Public/Granted day:2016-03-17
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