Antenna allocation apparatus and method for cellular mobile communication system

Patent metadata

Field	Value
Publication number	US-9484998-B2
Application number	US-201514679674-A
Country	US
Kind code	B2
Filing date	Apr 6, 2015
Priority date	Nov 22, 2010
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Methods and apparatuses are provided for communicating with a terminal of a base station in a mobile communication system. Configuration information on a plurality of antenna ports of reference signals (RSs) which comprise first type antenna ports and second type antenna ports, is transmitted. Status information for at least one antenna port of an RS among the plurality of antenna ports of the RSs, is received. At least one indicator indicating at least one selected antenna port of an RS is transmitted based on the status information. The terminal is communicated with using the at least one selected antenna port of the RS. The first type antenna ports are for a centralized antenna and the second type antenna ports are for a distributed antenna.

First claim

What is claimed is:

1. A method for communicating with a terminal of a base station in a mobile communication system, the method comprising:
transmitting configuration information on a plurality of antenna ports of reference signals (RSs) which comprise first type antenna ports and second type antenna ports;
receiving status information for at least one antenna port of an RS among the plurality of antenna ports of the RSs;
transmitting at least one indicator indicating at least one selected antenna port of an RS based on the status information; and
communicating with the terminal using the at least one selected antenna port of the RS,
wherein the first type antenna ports are for a centralized antenna and the second type antenna ports are for a distributed antenna.

2. The method of claim 1 , wherein the at least one indicator comprises at least one first indicator indicating at least one selected first type antenna port and at least one second indicator indicating at least one selected second type antenna port.

3. The method of claim 2 , wherein the terminal communicates with the centralized antenna using RSs of the at least one selected first type antenna port and communicates with the distributed antenna using RSs of the at least one selected second type antenna port.

4. The method of claim 1 , wherein RSs of the first type antenna ports and RSs of the second type antenna ports are distinguished from each other by allocating different time-frequency resources to each antenna port.

5. The method of claim 1 , wherein the first type antenna ports are predefined among the plurality of antenna ports of the RSs.

6. A method for communicating with a base station of a terminal in a mobile communication system, the method comprising:
receiving configuration information on a plurality of antenna ports of reference signals (RSs) which comprise first type antenna ports and second type antenna ports;
transmitting status information for at least one antenna port of an RS among the plurality of antenna ports of the RSs;
receiving at least one indicator indicating at least one selected antenna port of an RS; and
communicating with the base station using the at least one selected antenna port of the RS,
wherein the first type antenna ports are for a centralized antenna and the second type antenna ports are for a distributed antenna.

7. The method of claim 6 , wherein the at least one indicator comprises at least one first indicator indicating at least one selected first type antenna port and at least one second indicator indicating at least one selected second type antenna port.

8. The method of claim 7 , wherein the terminal communicates with the centralized antenna using RSs of the at least one selected first type antenna port and communicates with the distributed antenna using RSs of the at least one selected second type antenna port.

9. The method of claim 6 , wherein RSs of the first type antenna ports and RSs of the second type antenna ports are distinguished from each other by allocating different time-frequency resources to each antenna port.

10. The method of claim 6 , wherein the first type antenna ports are predefined among the plurality of antenna ports of the RSs.

11. A base station for communicating with a terminal in a mobile communication system, the base station comprising:
a transceiver for transmitting and receiving signals to and from the terminal;
a controller configured to control the transceiver to transmit configuration information on a plurality of antenna ports of reference signals (RSs) which comprise first type antenna ports and second type antenna ports, to receive status information for at least one antenna port of an RS among the plurality of antenna ports of the RSs, to transmit at least one indicator indicating at least one selected antenna port of an RS based on the status information, and to communicate with the terminal using the at least one selected antenna port of the RS,
wherein the first type antenna ports are for a centralized antenna and the second type antenna ports are for a distributed antenna.

12. The base station of claim 11 , wherein the at least one indicator comprises at least one first indicator indicating at least one selected first type antenna port and at least one second indicator indicating at least one selected second type antenna port.

13. The base station of claim 12 , wherein the terminal communicates with the centralized antenna using RSs of the at least one selected first type antenna port and communicates with the distributed antenna using RSs of the at least one selected second type antenna port.

14. The base station of claim 11 , wherein RSs of the first type antenna ports and RSs of the second type antenna ports are distinguished from each other by allocating different time-frequency resources to each antenna port.

15. The base station of claim 11 , wherein the first type antenna ports are predefined among the plurality of antenna ports of the RSs.

16. A terminal for communicating with a base station in a mobile communication system, the terminal comprising:
a transceiver for transmitting and receiving signals to and from the terminal;
a controller configured to control the transceiver to receive configuration information on a plurality of antenna ports of reference signals (RSs) which comprise first type antenna ports and second type antenna ports, and to transmit status information for at least one antenna port of an RS among the plurality of antenna ports of the RSs, to receive at least one indicator indicating at least one selected antenna port of an RS, and to communicate with the base station using the at least one selected antenna port of the RS,
wherein the first type antenna ports are for a centralized antenna and the second type antenna ports are for a distributed antenna.

17. The terminal of claim 16 , wherein the at least one indicator comprises at least one first indicator indicating at least one selected first type antenna port and at least one second indicator indicating at least one selected second type antenna port.

18. The terminal of claim 17 , wherein the terminal communicates with the centralized antenna using RSs of the at least one selected first type antenna port and communicates with the distributed antenna using RSs of the at least one selected second type antenna port.

19. The terminal of claim 16 , wherein RSs of the first type antenna ports and RSs of the second type antenna ports are distinguished from each other by allocating different time-frequency resources to each antenna port.

20. The terminal of claim 16 , wherein the first type antenna ports are predefined among the plurality of antenna ports of the RSs.

Assignees

• Samsung Electronics Co Ltd
• Samsung Electronics Co Ltd

Inventors

• Kim Youn Sun
• Kim Young Bum
• Lee Hyojin
• Cho Joon Young
• Lee Ju Ho
• Han Jin Kyu
• Shan Cheng

Classifications

• H04L5/0091

  Signalling for the administration of the divided path, e.g. signalling of configuration information · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04W24/02

  Arrangements for optimising operational condition · CPC title

• H04W74/002

  Transmission of channel access control information · CPC title

• H04L5/0032

  Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation · CPC title