Invention Grant
- Patent Title: Finding channel state information with reduced codebook in a multi-antenna wireless communication system
- Patent Title (中): 在多天线无线通信系统中用减少的码本查找信道状态信息
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Application No.: US14697143Application Date: 2015-04-27
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Publication No.: US09231684B2Publication Date: 2016-01-05
- Inventor: Sairamesh Nammi
- Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Main IPC: H04B7/06
- IPC: H04B7/06

Abstract:
According to certain embodiments, a method performed by a transmitter to provide a precoder subset to a receiver in a multi-antenna wireless communication system is disclosed. The method includes determining the precoder subset comprising one or more precoder elements, each precoder element being a precoder element of a codebook, and the precoder subset including less than all precoder elements of the codebook. The method further includes providing the precoder subset to the receiver, wherein the codebook is defined for a plurality of ranks. For each rank, the codebook comprises a plurality of precoder elements corresponding to that rank.
Public/Granted literature
- US20150229381A1 FINDING CHANNEL STATE INFORMATION WITH REDUCED CODEBOOK IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM Public/Granted day:2015-08-13
Information query