Device and method for fronthaul transmission in wireless communication system

Patent metadata

Field	Value
Publication number	US-11778632-B2
Application number	US-202117516123-A
Country	US
Kind code	B2
Filing date	Nov 1, 2021
Priority date	Oct 18, 2019
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

The present disclosure relates to a pre-5 th -Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4 th -Generation (4G) communication system such as Long Term Evolution (LTE). According to embodiments, a method performed by a distributed unit (DU), the method comprises generating a control plane (C-plane) message for multiple ports, the C-plane message including section information and a section extension; and transmitting the C-plane message to a radio unit (RU) via a specific port of the multiple ports. The section information includes information on a beam identifier (ID). The section extension includes beam group type information for indicating a type of beam grouping, and port information for indicating a total number of one or more extended antenna-carrier (eAxC) ports indicated by the section extension.

First claim

What is claimed is:

1. A method performed by a distributed unit (DU), the method comprising:
generating a control plane (C-plane) message including section information with a section extension for multiple ports; and
transmitting the C-plane message to a radio unit (RU),
wherein the section information includes information on a beam identifier (ID) for a representative port of the multiple ports, and
wherein the section extension includes:
beam group type information, and
information on a number N of extended antenna-carrier (eAxC) ports indicated by the section extension.

2. The method of claim 1 , wherein each of the multiple ports corresponds to a transmission or reception (Tx/Rx) path, or a layer.

3. The method of claim 1 , wherein the representative port is configured by a management plane (M-plane).

4. The method of claim 1 , wherein the beam group type information indicates one of:
a first type which the beam ID for the representative port is used as a common beam ID for all of the N eAxC ports,
a second type which N consecutive beam IDs or user equipment (UE) IDs subsequent to the beam ID apply to the N eAxC ports, or
a third type which beam IDs or UE IDs listed in the section extension apply to the N eAxC ports.

5. The method of claim 4 , wherein the beam ID indicates a beam matrix, if the beam group type information indicates the second type.

6. The method of claim 4 ,
wherein the beam ID is associated with an index indicating a set of multiple beams, if the beam group type information indicates the third type, and
wherein each beam of the multiple beams applies to a corresponding port among the multiple ports.

7. The method of claim 4 ,
wherein the UE IDs correspond to each of the eAxC ports.

8. A method performed by a radio unit (RU), the method comprising:
receiving, from a distributed unit (DU), a control plane (C-plane) message including section information with a section extension for multiple ports; and
identifying the section information and the section extension included in the C-plane message,
wherein the section information includes information on a beam identifier (ID) for a representative port of the multiple ports, and
wherein the section extension includes:
beam group type information, and
information on a number N of extended antenna-carrier (eAxC) ports indicated by the section extension.

9. The method of claim 8 , wherein each of the multiple ports corresponds to a transmission or reception (Tx/Rx) path, or a layer.

10. The method of claim 9 , wherein the representative port is configured by a management plane (M-plane).

11. The method of claim 9 , wherein the beam group type information indicates one of:
a first type which the beam ID for the representative port is used as a common beam ID for all the N eAxC ports,
a second type which N consecutive beam IDs or user equipment (UE) IDs subsequent to the beam ID apply to the N eAxC ports, or
a third type which beam IDs or UE IDs listed in the section extension apply to the N eAxC ports.

12. The method of claim 11 , wherein the beam ID indicates a beam matrix, if the beam group type information indicates the second type.

13. The method of claim 11 ,
wherein the beam ID is associated with an index indicating a set of multiple beams, if the beam group type information indicates the third type, and
wherein each beam of the multiple beams applies to a corresponding port among the multiple ports.

14. The method of claim 11 ,
wherein the UE IDs correspond to each of the eAxC ports.

15. A device of a distributed unit (DU), the device comprising:
at least one transceiver; and
at least one processor configured to:
generate a control plane (C-plane) message including section information with a section extension for multiple ports, and
transmit the C-plane message to a radio unit (RU),

wherein the section information includes information on a beam identifier (ID) for a representative port of the multiple ports, and
wherein the section extension includes:
beam group type information, and
information on a number N of extended antenna-carrier (eAxC) ports indicated by the section extension.

16. The device of claim 15 , wherein each of the multiple ports corresponds to a transmission or reception (Tx/Rx) path, or a layer.

17. The device of claim 15 , wherein the representative port is configured by a management plane (M-plane).

18. The device of claim 15 , wherein the beam group type information indicates one of:
a first type which the beam ID for the representative port is used as a common beam ID for all the N eAxC ports,
a second type which N consecutive beam IDs or user equipment (UE) IDs subsequent to the beam ID apply to the N eAxC ports, or
a third type which beam IDs or UE IDs listed in the section extension apply to the N eAxC ports.

19. A device of a radio unit (RU), the device comprising:
at least one transceiver; and
at least one processor configured to:
receive, from a distributed unit (DU), a control plane (C-plane) message including section information with a section extension for multiple ports, and
identify the section information and the section extension included in the C-plane message,

wherein the section information includes information on a beam identifier (ID) for a representative port of the multiple ports, and
wherein the section extension includes:
beam group type information, and
information on a number N of extended antenna-carrier (eAxC) ports indicated by the section extension.

20. The device of claim 19 , wherein each of the multiple ports corresponds to a transmission or reception (Tx/Rx) path, or a layer.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jeon Namryul
• Kim Daejoong
• Kim Jaeyoel
• Rhim Wonwoo
• Huh Sunguk

Classifications

• H04B7/06968

  using quasi-colocation [QCL] between signals · CPC title

• H04B7/0691 Primary

  using subgroups of transmit antennas · CPC title

• H04W72/12

  Wireless traffic scheduling · CPC title

• H04W72/044

  based on the type of the allocated resource · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title