Downlink transmission method and apparatus
US-2024421870-A1 · Dec 19, 2024 · US
Method and apparatus for transmitting and receiving codebook subset restriction bitmap
US9178596B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178596-B2 |
| Application number | US-201414557800-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2014 |
| Priority date | Oct 4, 2010 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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Abstract
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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.
First claim
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What is claimed is: 1. A method for transmitting a codebook subset restriction (CSR) bitmap in a wireless communication system, the method comprising: generating the CSR bitmap including bits corresponding to restricted precoding matrix indicators that are not allowed to be reported; and transmitting the CSR bitmap to a terminal, wherein a first bit to a 16 th bit of the CSR bitmap are associated with first precoding matrix indicators for rank 1, a 17 th bit to a 32 nd bit…
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Electricity · mapped topic
Electricity · mapped topic
- H04B7/0639Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9178596B2 cover?
- 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 re…
- Who is the assignee on this patent?
- Samsung Electronics Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0639. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).