Invention Grant
- Patent Title: CSI-based precoding in search space subset
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Application No.: US17600036Application Date: 2020-01-31
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Publication No.: US12113592B2Publication Date: 2024-10-08
- Inventor: Saeedeh Moloudi , Anders Wallén
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Withrow & Terranova, PLLC
- International Application: PCT/SE2020/050088 2020.01.31
- International Announcement: WO2020/204775A 2020.10.08
- Date entered country: 2021-09-29
- Main IPC: H04B7/04
- IPC: H04B7/04 ; H04B7/0456 ; H04B7/06 ; H04L1/00

Abstract:
Systems and methods for decoding a transmission are provided. In some embodiments, a method performed by a wireless device comprises determining a plurality of Machine-Type Communications (MTC) Physical Downlink Control Channel (MPDCCH) transmission candidates to monitor. For at least one candidate of the plurality of MPDCCH transmission candidates, the method includes determining whether the candidate belongs to a first group of candidates or a second group of candidates. If the candidate belongs to the first group of candidates, the method includes attempting to decode the MPDCCH transmission using a Channel State Information (CSI)-based precoding scheme. If the candidate belongs to the second group of candidates, the method includes attempting to decode the MPDCCH transmission using a predetermined precoding scheme. This may allow a more robust precoding technique and can be considered as technique with a fallback solution for the cases in which the CSI is either missed or not reliable.
Public/Granted literature
- US20220190891A1 CSI-BASED PRECODING IN SEARCH SPACE SUBSET Public/Granted day:2022-06-16
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