US 2015/0318972 A1 · TRANSMISSION METHOD OF A CHANNEL STATE INFORMATION REFERENCE SIGNAL, BASE STATION, TERMINAL, SYSTEM, MACHINE-READABLE PROGRAM AND STORAGE MEDIUM STORING A MACHINE-READABLE PROGRAM

Abstract

A transmission method of a channel state information reference signal (CSI-RS), including: selecting from a resource block s groups of resource elements for transmitting CSI-RSs of mi antenna ports, or selecting at least one resource element from each of r resource blocks for transmitting CSI-RSs of mj antenna ports, to constitute a resource element group to which CSI-RSs of n antenna ports correspond, n>mi, n>mj, 1≦i≦s, 1≦j≦r; transmitting the CSI-RSs of n antenna ports to a terminal via the resource elements, and informing related information to the terminal by using indication signaling and further provides a base station, a terminal, a system, a machine-readable program and a storage medium storing a machine-readable program. The present disclosure may provide CSI-RSs supporting more antenna ports according to CSI-RSs of existing antenna ports of a low number, thereby fully bringing performance of a large-scale antenna system into play.

Claims20

Dependent claims

A base station, comprising:

a data processing module configured to select s groups of resource elements from a resource block, an Ai-th group of resource elements being used for transmitting resource elements of channel state information reference signals of mi antenna ports, so as to constitute a resource element group to which channel state information reference signals of n antenna ports correspond;
where, n>mi, n>mj, 1≦i≦s, 1≦j≦r;
or in r resource blocks, select at least one resource element from an Ai-th resource block for transmitting channel state information reference signals of mj antenna ports, and constitute a resource element group to which channel state information reference signals of n antenna ports correspond by using all the selected resource elements;
where, r>1, n>mj, 1≦i≦s, 1≦j≦r;
and
a data transmitting module configured to transmit the channel state information reference signals of the n antenna ports to one or more terminals by using the resource element group.

3 more elements

A terminal, comprising:

a data interacting module configured to receive channel state information reference signals of n antenna ports, the channel state information reference signals of n antenna ports being transmitted by using a resource element group constituted by s groups of resource elements selected from a resource block, an Ai-th group of resource elements being used for transmitting channel state information reference signals of mi antenna ports, s>1, n>mi, 1≦i≦s;
or being transmitted by using resource element group constituted by all selected resource elements by selecting at least one resource element from Aj resource blocks for transmitting channel state information reference signals of mj antenna ports in r resource blocks, r>1, n>mj, 1≦j≦r.

Dependencies are inferred from the claim text.

Transmission method of a channel state information reference signal, base station, terminal, system, machine-readable program and storage medium storing a machine-readable program

Life of this patent

Transmission method of a channel state information reference signal, base station, terminal, system, machine-readable program and storage medium storing a machine-readable program

Life of this patent

Abstract

Claims20