Method for transmitting and receiving wireless signal in wireless communication system and apparatus therefor
US-2017303136-A1 · Oct 19, 2017 · US
Method and apparatus for transmitting diversity
US10230446B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10230446-B2 |
| Application number | US-201615243942-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 22, 2016 |
| Priority date | Aug 21, 2015 |
| Publication date | Mar 12, 2019 |
| Grant date | Mar 12, 2019 |
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- Title
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Abstract
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The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. According to a method for transmitting diversity, implemented at a transmitting end, space-time precoding is performed for a digital signal to obtain at least two coded signal streams, and then each coded signal stream is transmitted using a respective transmitting and receiving unit (TXRU) equipped with a multi-antenna array, in which an antenna array weight used by the respective TXRU to transmit each coded signal stream is one of two sets of antenna array weights, and at least two TXRUs use two different sets of antenna array weights. The present disclosure also discloses a corresponding transmitter. With the present disclosure, transmitting diversity may be realized in a large-scale antenna system.
First claim
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What is claimed is: 1. A method for transmitting diversity by a transmitting node, the method comprising: performing a space-time precoding for a digital signal to obtain at least two coded signal streams; and transmitting each coded signal stream, which is obtained by the space-time precoding, by using a respective transmitting and receiving unit (TXRU) equipped with a multi-antenna array, wherein a multi-antenna array is controlled independently from another multi-antenna array by a TXRU associated with the multi-antenna array, wherein each of the respective TXRU performs a beamforming to transmit each coded signal stream, wherein an antenna array weight used by the respective TXRU to transmit each coded signal stream is one of two sets of antenna array weights, and at least two TXRUs use two different sets of antenna array weights, wherein each element of the antenna array weights is determined based on a number of antenna units associated with the respective TXRU, and wherein a number of coded signal streams transmitted using a same antenna array weight varies as time varies. 2. The method of claim 1 , wherein the two sets of antenna array weights have a differential relation where a first half part of a second set of antenna array weights are the same with a first half part of a first set of antenna array weights, and a last half part of the second set of antenna array weights are opposite numbers of a last half part of the first set of antenna array weights. 3. The method of claim 1 , wherein the two sets of antenna array weights are respectively: w 1 = [ 1 , e j 2 π sin ( θ ) d / λ , … e j 2 π ( N 2 - 1 ) sin ( θ ) d / λ , e j 2 π ( N 2 ) sin ( θ ) d / λ … e j 2 π ( N - 1 ) sin ( θ ) d / λ ] T
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Classifications
using subgroups of transmit antennas · CPC title
using space frequency diversity (space-frequency coding H04L1/0606) · CPC title
- H04B7/0669Primary
using different channel coding between antennas (space-time coding H04L1/0618) · CPC title
in wireless communication networks · CPC title
- H04B7/0602Primary
using antenna switching (H04B7/0686 takes precedence; antenna beam directivity switching H01Q3/24) · CPC title
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- What does patent US10230446B2 cover?
- The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home,…
- Who is the assignee on this patent?
- Samsung Electronics Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0669. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 12 2019 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).