Invention Grant
- Patent Title: Smaller sub-band size for PMI than for CQI
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Application No.: US17551800Application Date: 2021-12-15
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Publication No.: US11595098B2Publication Date: 2023-02-28
- Inventor: Niklas Wernersson , Sebastian Faxér , Maksym Girnyk
- 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: Baker Botts L.L.P.
- Main IPC: H04B7/06
- IPC: H04B7/06

Abstract:
A method performed by a wireless device (510, 700, 1100) is disclosed. The wireless device obtains (601) a configuration for a sub-band channel quality indicator (CQI) granularity and a sub-band precoding matrix indicator (PMI) granularity for the wireless device. The wireless device determines (602) channel state information (CSI) feedback according to the configured sub-band CQI granularity and the sub-band PMI granularity. The sub-band PMI granularity corresponds to a first sub-band size and the sub-band CQI granularity corresponds to a second sub-band size. The first sub-band size is smaller than the second sub-band size. The wireless device transmits (603), to a network node (560, 1000), the determined CSI feedback.
Public/Granted literature
- US20220109482A1 Smaller Sub-Band Size for PMI than for CQI Public/Granted day:2022-04-07
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