Invention Application
- Patent Title: WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD
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Application No.: US16785189Application Date: 2020-02-07
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Publication No.: US20200178219A1Publication Date: 2020-06-04
- Inventor: Masayuki HOSHINO , Akihiko NISHIO , Seigo NAKAO , Daichi IMAMURA , Yasuaki YUDA
- Applicant: SUN PATENT TRUST
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@38bacf59 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@713b49b3 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7ff5bf16
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04W24/10 ; H04W72/12 ; H04B17/24 ; H04B17/00 ; H04L1/00 ; H04L5/00 ; H04B7/06

Abstract:
To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
Public/Granted literature
- US11490368B2 Wireless communication apparatus and wireless communication method Public/Granted day:2022-11-01
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