Codebook consideration for dynamic antenna adaptation
US-2024413874-A1 · Dec 12, 2024 · US
Method for generating codebook, method and apparatus for data transmission
US8971440B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971440-B2 |
| Application number | US-201414188325-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2014 |
| Priority date | Jun 18, 2009 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A method for generating a codebook and a method and an apparatus for data transmission are provided. The method includes: receiving a label of a codeword sent by a User Equipment (UE); selecting the codeword identified by the label from the codebook for eight-antenna; and coding data to be sent by using the codeword. The codebook for eight-antenna includes at least one rank-8 codeword for eight-antenna. The rank-8 codeword for eight-antenna is generated by multiplying an inverse matrix of a rotation matrix for eight-antenna with an eight-dimensional matrix formed by rank-4 codewords for four-antenna; or generated by extending rank-4 codewords for eight-antenna, where the rank-4 codeword for eight-antenna is generated according to codewords for four-antenna. Therefore, the codeword in the codebook for eight-antenna is applicable to scenarios including dual-polarization strong correlation, dual-polarization weak correlation, single-polarization strong correlation, and single-polarization weak correlation, etc.
First claim
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What is claimed is: 1. A method of generating a codebook for a communication system, comprising: obtaining a first rank-4 codeword for a four-antenna configuration; obtaining a second rank-4 codeword for the four-antenna configuration; generating one or more rank-4 codewords for an eight-antenna configuration, wherein generating the one or more rank-4 codewords for the eight-antenna configuration comprises: creating a matrix by multiplying the first rank-4 codeword for the fo…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B7/0469Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8971440B2 cover?
- A method for generating a codebook and a method and an apparatus for data transmission are provided. The method includes: receiving a label of a codeword sent by a User Equipment (UE); selecting the codeword identified by the label from the codebook for eight-antenna; and coding data to be sent by using the codeword. The codebook for eight-antenna includes at least one rank-8 codeword for eight…
- Who is the assignee on this patent?
- Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0469. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 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).