ELECTRONIC DEVICE AND METHOD FOR USE IN NETWORK CONTROL POINT AND CENTRAL PROCESSING NODE

• US 20190326960A1
• Filed: 07/11/2017
• Published: 10/24/2019
• Est. Priority Date: 08/02/2016
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: ZHAO, Xinsheng, CHEN, Changshan, LU, Pen-shun
• Granted Patent: US 10,862,552 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04L 25/03331 Arrangements for the joint estimation of multiple sequences
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08

Abstract

Provided are an electronic device and method for use in a network control point and a central processing node. The electronic device for use in a network control point comprises a processing circuit. The processing circuit is used to acquire channel characteristic information of channels between a network control point and one or more neighboring network control points thereof and respective user equipment units, and to acquire service requirement information of the user equipment units served by the respective network control points. The current network control point and the neighboring network control points adopt joint precoding to perform downlink data transmission. The processing circuit determines, according to the service requirement information and the channel characteristic information, the number of transmitting antenna to be used by the network control point and the neighboring network control points.

Claims

1. An electronic apparatus for a network control terminal, comprising:

processing circuitry, configured to;

acquire channel feature information of channels between a network control terminal and its one or more adjacent network control terminals and user equipment served by respective network control terminals, and service requirement information of the user equipment served by respective network control terminals, wherein, the network control terminal and its adjacent network control terminals perform downlink data transmission using joint pre-coding; and

determine, based on the service requirement information and the channel feature information, the numbers of emitting antennas to be used by the network control terminal and its adjacent network control terminals.

2. The electronic apparatus according to claim 1, wherein, the channel feature information of channels between the adjacent network control terminal and the user equipment served by respective network control terminals, and the service requirement of the user equipment served by the adjacent network control terminal are acquired through information interchange between network control terminals.

3. The electronic apparatus according to claim 1, wherein, the processing circuitry is configured to:

determine, based on the service requirement of particular user equipment among the user equipment served by each network control terminal and the channel feature information, a minimum number of emitting antennas for each network control terminal; and

jointly optimize the numbers of emitting antennas to be used by respective network control terminals according to the minimum number of emitting antennas.

4. The electronic apparatus according to claim 3, wherein, the processing circuitry is configured to maximize overall energy efficiency of a communication system as a target of the optimizing, the communication system comprising the network control terminal and its served user equipment as well as the adjacent network control terminals and their served user equipment;

or

maximize an overall energy efficiency of the user equipment served by respective network control terminals as a target of the optimizing;

or

maximize an overall energy efficiency of respective network control terminal as a target of the optimizing;

or

under the condition of fixing the numbers of emitting antennas for other network control terminals, optimize the number of emitting antennas to be used by each network control terminal in turn.

8. The electronic apparatus according to claim 1, wherein, the channel feature information comprises one or more of the following:

a large scale fading coefficient, a small scale fading coefficient, an angle of arrival for signal, and channel correlation time.

9. The electronic apparatus according to claim 1, wherein, the service requirement of the user equipment is data transmission rate requirement of the user equipment.

10. The electronic apparatus according to claim 3, wherein, the particular user equipment is user equipment with the highest priority level among the user equipment served by the corresponding network control terminal.

11. The electronic apparatus according to claim 3, wherein, the channel feature information is a large scale fading coefficient, and the minimum number of emitting antennas is an analytic function of the service requirement and the large scale fading coefficient.

12. The electronic apparatus according to claim 1, further comprising:

a transceiver, configured to receive the service requirement information of the user equipment and the channel feature information from the adjacent network control terminal,

wherein, the transceiver is configured to receive the information through signaling for interaction between the network control terminals.

14. The electronic apparatus according to claim 12, wherein, the transceiver is further configured to transmit to an adjacent network control terminal information of the determined number of emitting antennas to be used by the adjacent network control terminal.

5-7. -7. (canceled)

13. (canceled)

15. An electronic apparatus for a central processing node, comprising:

processing circuitry, configured to;

acquire channel feature information of channels between network control terminals which are adjacent to each other and user equipment served by respective network control terminals, and service requirement information of the user equipment, wherein, the network control terminals perform downlink data transmission using joint pre-coding; and

determine, based on the service requirement information of the user equipment and the channel feature information, the numbers of emitting antennas to be used by respective network control terminals.

16. The electronic apparatus according to claim 15, wherein, the processing circuitry is configured to:

determine, based on the service requirement of particular user equipment among the user equipment served by each network control terminal and the channel feature information, a minimum number of emitting antennas for each network control terminal; and

jointly optimize the numbers of emitting antennas to be used by respective network control terminals according to the minimum number of emitting antennas.

17. The electronic apparatus according to claim 16, wherein, the processing circuitry is configured to maximize an overall energy efficiency of a communication system as a target of the optimizing, the communication system comprising the respective network control terminals and their served user equipment;

or

maximize an overall energy efficiency of the user equipment served by each network control terminal as a target of the optimizing;

or

wherein, the processing circuitry is configured to maximize an overall energy efficiency of each network control terminal as a target of the optimizing;

or

under the condition of fixing the numbers of emitting antennas for other network control terminals, optimize the number of emitting antennas to be used by each network control terminal in turn.

21. The electronic apparatus according to claim 15, wherein, the channel feature information comprises one or more of the following:

a large scale fading coefficient, a small scale fading coefficient, an angle of arrival for signal, and channel correlation time.

22. The electronic apparatus according to claim 15, wherein, the service requirement of the user equipment is data transmission rate requirement of the user equipment.

23. The electronic apparatus according to claim 16, wherein, the particular user equipment is user equipment with the highest priority level among the user equipment served by the corresponding network control terminal.

24. The electronic apparatus according to claim 15, further comprising:

a transceiver, configured to receive the service requirement information of the user equipment and the channel feature information from the respective network control terminals,

wherein, the transceiver is further configured to transmit to each network control terminal information of the number of emitting antennas to be used by the network control terminal.

18-20. -20. (canceled)

25. (canceled)

26. A method for a network control terminal, comprising:

acquiring channel feature information of channels between a network control terminal and its one or more adjacent network control terminals and user equipment served by respective network control terminals, and service requirement information of the user equipment served by respective network control terminals, wherein, the network control terminal and its adjacent network control terminals perform downlink data transmission using joint pre-coding; and

determining, based on the service requirement information and the channel feature information, the numbers of emitting antennas to be used by the network control terminal and its adjacent network control terminals.

27. A method for a central processing node, comprising:

acquiring channel feature information of channels between network control terminals which are adjacent to each other and user equipment served by respective network control terminals, and service requirement information of the user equipment, wherein, the network control terminals perform downlink data transmission using joint pre-coding; and

determining, based on the service requirement information of the user equipment and the channel feature information, the numbers of emitting antennas to be used by respective network control terminals.