Invention Grant
- Patent Title: Method and apparatus for transmitting and receiving codebook subset restriction bitmap
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Application No.: US14845679Application Date: 2015-09-04
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Publication No.: US09887758B2Publication Date: 2018-02-06
- Inventor: Jin Kyu Han , Bruno Clerckx
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Jefferson IP Law, LLP
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04L25/03 ; H04B7/0413 ; H04B7/0456 ; H04W72/04 ; H04W74/00 ; H04B1/04 ; H04B1/16 ; H04B1/40 ; H04B7/04 ; H04W88/02 ; H04W88/08

Abstract:
A method for transmitting and receiving a codebook subset restriction bitmap is provided. The Codebook Subset Restriction (CSR) bitmap transmission method of an evolved Node B (eNB) in transmission mode 9 for communication with 8 antenna ports includes generating a CSR bitmap including bits corresponding to restricted precoding matrix indicators and rank indicators that are not allowed for reporting and transmitting the CSR bitmap to a User Equipment (UE). The CSR bitmap comprises 53 bits corresponding to a first codebook and 56 bits corresponding to a second codebook, the 53 bits corresponding to a first codebook comprise 16, 16, 4, 4, 4, 4, and 1 bits for layers 1, 2, 3, 4, 5, 6, 7, and 8, respectively, and the 56 bits corresponding to a second codebook comprise 16, 16, 16 and 8 bits for layers 1, 2, 3, and 4, respectively.
Public/Granted literature
- US20150381250A1 METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CODEBOOK SUBSET RESTRICTION BITMAP Public/Granted day:2015-12-31
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