TRANSRECEIVING METHOD AND APPARATUS APPLYING BEAM DIVERSITY IN WIRELESS COMMUNICATION SYSTEM

• US 20200136680A1
• Filed: 05/21/2018
• Published: 04/30/2020
• Est. Priority Date: 07/13/2017
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Jungju, KIM, Daehyun, KIM, Taekyoung, NAM, Eungkuk, PARK, Joosung, HWANG, Wonjun
• Granted Patent: US 11,451,267 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/0404 the mobile station comprising multiple antennas, e.g. to provide uplink diversity
• CPC Class Codes: H04B 7/0408 using two or more beams, i.e. beam diversity
• CPC Class Codes: H04B 7/0469 taking special antenna structures, e.g. cross polarized antennas into account
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy

Abstract

The present disclosure relates to a communication technique converging a 5G communication system with IoT technology to support a higher data transmission rate in a beyond-4G system. The present disclosure, based on 5G communication technology and IoT-related technology, can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail industry, and security and safety-related services). Disclosed in the present invention are a transreceiving method and an apparatus to which beam diversity is applied.

Claims

1. A method by a terminal for receiving data in a wireless communication system, comprising:

receiving, from a base station, data related to each other through a plurality of beams; and

processing the data related to each other together.

2. The method of claim 1,

wherein the data related to each other comprises first data and second data which are transmitted through different beams, and the first data is at least partly equal to the second data or is obtained by adding redundancy information to the second data, and

wherein the processing comprises decoding of the first data and the second data together.

3. The method of claim 1, wherein the plurality of beams are beams belonging to a beam candidate group of which a beam gain is measured to be equal to or higher than a threshold value as the result of the beam measurement with the base station, and are respectively formed through a plurality of antennas included in the base station.

4. The method of claim 1, further comprising:

transmitting a signal for requesting of a transmission using the plurality of beams to the base station;

or

configuring communication using a cross-polarization antenna with the base station,

wherein the data related to each other is an initially transmitted data transmitted from the base station or a retransmitted data, and

the method further includes transmitting a retransmission request message including information indicating the plurality of beams to the base station if the data related to each other is the retransmitted data.

5. A terminal for receiving data in a wireless communication system, comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

receive, from a base station, data related to each other through a plurality of beams, and

process the data related to each other together.

6. The terminal of claim 5,

wherein the data related to each other comprises first data and second data which are transmitted through different beams, and the first data is at least partly equal to the second data or is obtained by adding redundancy information to the second data, and

wherein the controller is configured to decode the first data and the second data together.

7. The terminal of claim 5, wherein the plurality of beams are beams belonging to a beam candidate group of which a beam gain is measured to be equal to or higher than a threshold value as the result of the beam measurement with the base station, and are respectively formed through a plurality of antennas included in the base station.

8. The terminal of claim 6,

wherein the controller is further configured to:

transmit a signal for requesting of a transmission using the plurality of beams to the base station, or

configure communication using a cross-polarization antenna with the base station,

wherein the data related to each other is an initially transmitted data transmitted from the base station or a retransmitted data, and

wherein the controller is configured to transmit a retransmission request message including information indicating the plurality of beams to the base station if the data related to each other is the retransmitted data.

9. A method by a base station for transmitting data in a wireless communication system, comprising:

selecting a plurality of beams for transmitting data related to each other to a terminal; and

transmitting the data related to each other to the terminal through the plurality of beams.

10. The method of claim 9,

wherein the data related to each other comprises first data and second data which are transmitted through different beams, and the first data is at least partly equal to the second data or is obtained by adding redundancy information to the second data,

wherein the first data and the second data are decoded together by the terminal, and

wherein the plurality of beams are beams belonging to a beam candidate group of which a beam gain is measured to be equal to or higher than a threshold value as the result of the beam measurement with the terminal, and are respectively formed through a plurality of antennas included in the base station.

11. The method of claim 9, further comprising:

receiving a signal for requesting of a transmission using the plurality of beams from the terminal;

or

configuring communication using a cross-polarization antenna with the terminal,

wherein the data related to each other is an initially transmitted data transmitted to the terminal or a retransmitted data, and

the method further includes receiving a retransmission request message including information indicating the plurality of beams from the terminal if the data related to each other is the retransmitted data.

12. A base station for transmitting data in a wireless communication system, comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

select a plurality of beams for transmitting data related to each other to a terminal, and

transmit the data related to each other to the terminal through the plurality of beams.

13. The base station of claim 12,

wherein the data related to each other comprises first data and second data which are transmitted through different beams, and the first data is at least partly equal to the second data or is obtained by adding redundancy information to the second data, and

wherein the first data and the second data are decoded together by the terminal.

14. The base station of claim 12, wherein the plurality of beams are beams belonging to a beam candidate group of which a beam gain is measured to be equal to or higher than a threshold value as the result of the beam measurement with the terminal, and are respectively formed through a plurality of antennas included in the base station.

15. The base station of claim 12,

wherein the controller is configured to:

receive a signal for requesting of a transmission using the plurality of beams from the terminal, or

configure communication using a cross-polarization antenna with the terminal,

wherein the data related to each other is an initially transmitted data transmitted to the terminal or a retransmitted data, and

wherein the controller is configured to receive a retransmission request message including information indicating the plurality of beams from the terminal if the data related to each other is the retransmitted data.