Method and device for determining channel state information-reference signal transmission resource

1. A method for determining a Channel State Information-Reference Signal (CSI-RS) transmission resource, comprising:

acquiring, by a User Equipment (UE), uplink/downlink subframe configuration information for determining a position of a CSI-RS resource;

determining, by the UE, a type of a subframe within which a CSI-RS is to be transmitted in accordance with the uplink/downlink subframe configuration information; and

determining, by the UE, the position of the CSI-RS resource within the subframe within which the CSI-RS is to be transmitted in accordance with the determined type of the subframe,

wherein one or more types of subframes within which the CSI-RS is to be transmitted are determined by the UE in accordance with the uplink/downlink subframe configuration information;

the step of determining, by the UE, the position of the CSI-RS resource within the subframe within which the CSI-RS is to be transmitted in accordance with the determined type of the subframe comprises:

in the case that one type of subframe within which the CSI-RS is to be transmitted is determined by the UE in accordance with the uplink/downlink subframe configuration information, determining, by the UE, the position of the CSI-RS resource in accordance with the one type of the subframe within which the CSI-RS is to be transmitted; and

in the case that two or more types of subframes within which the CSI-RS is to be transmitted are determined by the UE in accordance with the uplink/downlink subframe configuration information, determining, by the UE, the position of the CSI-RS resource in accordance with each of the types of the subframes, to acquire a set of positions of the resources corresponding to each of the types of the subframes; and determining, by the UE, the set of the positions of the CSI-RS resources corresponding to each of the types of the subframes to be the position of the CSI-RS resource for receiving or measuring a downlink signal,

wherein the method further comprises, subsequent to the step of determining, by the UE, the set of the positions of the CSI-RS resources corresponding to each of the types of the subframes to be the position of the CSI-RS resource for receiving or measuring the downlink signal:

acquiring, by the UE, a union of the sets of the positions of the CSI-RS resources corresponding to the types of the subframes, and receiving or measuring the downlink signal in accordance with the union; or

receiving or measuring, by the UE, the downlink signal in accordance with the set of the positions of the CSI-RS resources corresponding to each of the types of subframes.

2. The method according to claim 1 , wherein the UE acquires the uplink/downlink subframe configuration information for determining the position of the CSI-RS resource using one or more types of signaling in accordance with an agreement with a system or in accordance with UE-specific signaling from a base station.

3. The method according to claim 1 , wherein the step of acquiring, by the UE, the uplink/downlink subframe configuration information for determining the position of the CSI-RS resource comprises:

acquiring, by the UE, the uplink/downlink subframe configuration information using one or any combination of: broadcasting signaling from a base station, physical layer downlink signaling from the base station, and UE-specific high-layer signaling from the base station.

4. The method according to claim 3 , wherein the step of acquiring, by the UE, the uplink/downlink subframe configuration information using the UE-specific high-layer signaling from the base station comprising:

receiving, by the UE, the UE-specific high-layer signaling from the base station, the UE-specific high-layer signaling being used to indicate the UE to acquire the uplink/downlink subframe configuration information using the broadcasting signaling and/or the physical layer downlink signaling; and

acquiring, by the UE, the uplink/downlink subframe configuration information using the broadcasting signaling and/or the physical layer downlink signaling in accordance with the UE-specific high-layer signaling.

5. The method according to claim 1 , wherein the subframe within which the CSI-RS is to be transmitted is a seventh subframe in a radio frame.

6. The method according to claim 1 , wherein the CSI-RS comprises a zero-power CSI-RS and/or a non-zero-power CSI-RS, and the determined type of the subframe comprises at least one of a normal uplink subframe, a normal downlink subframe and a special subframe.

7. A User Equipment (UE), comprising:

a processor;

a memory connected to the processor via a bus interface and configured to store therein programs and data for the operation of the processor; and

a transceiver configured to be in communication with any other devices over a transmission medium,

wherein the processor is configured to call and execute the programs and the data stored in the memory to:

acquire uplink/downlink subframe configuration information for determining a position of a Channel State Information-Reference Signal (CSI-RS) resource;

determine a type of a subframe within which a CSI-RS is to be transmitted in accordance with the uplink/downlink subframe configuration information; and

determine the position of the CSI-RS resource within the subframe within which the CSI-RS is to be transmitted in accordance with the determined type of the subframe,

wherein one or more types of subframes within which the CSI-RS is to be transmitted are determined by the first determination unit in accordance with the uplink/downlink subframe configuration information;

the processor is further configured to call and execute the programs and the data stored in the memory to:

in the case that one type of subframe within which the CSI-RS is to be transmitted is determined by the processor in accordance with the uplink/downlink subframe configuration information, determine the position of the CSI-RS resource in accordance with the one type of the subframe within which the CSI-RS is to be transmitted; and

in the case that two or more types of subframes within which the CSI-RS is to be transmitted are determined by the processor in accordance with the uplink/downlink subframe configuration information, determine the position of the CSI-RS resource in accordance with each of the types of the subframes, to acquire a set of positions of the resources corresponding to each of the types of the subframes; and determine the set of the positions of the CSI-RS resources corresponding to each of the types of the subframes to be the position of the CSI-RS resource for receiving or measuring a downlink signal,

wherein the processor is further configured to call and execute the programs and the data stored in the memory to, subsequent to determining, by the processor, the set of the positions of the CSI-RS resources corresponding to each of the types of the subframes to be the position of the CSI-RS resource for receiving or measuring the downlink signal;

acquire a union of the sets of the positions of the CSI-RS resources corresponding to the types of the subframes, and receive or measure the downlink signal in accordance with the union; or

receive or measure the downlink signal in accordance with the set of the positions of the CSI-RS resources corresponding to each of the types of the subframes.

8. The UE according to claim 7 , wherein the processor is further configured to call and execute the programs and the data stored in the memory to: acquire the uplink/downlink subframe configuration information for determining the position of the CSI-RS resource using one or more types of signaling in accordance with an agreement with a system or in accordance with UE-specific signaling from a base station.

9. The UE according to claim 7 , wherein the processor is further configured to call and execute the programs and the data stored in the memory to: acquire the uplink/downlink subframe configuration information using one or any combination of: broadcasting signaling from the base station, physical layer downlink signaling from the base station, and UE-specific high-layer signaling from the base station.

10. The UE according to claim 9 , wherein the processor is further configured to call and execute the programs and the data stored in the memory to: receive the UE-specific high-layer signaling from the base station, the UE-specific high-layer signaling being used to indicate the UE to acquire the uplink/downlink subframe configuration information using the broadcasting signaling and/or the physical layer downlink signaling; and

acquire the uplink/downlink subframe configuration information using the broadcasting signaling and/or the physical layer downlink signaling in accordance with the UE-specific high-layer signaling.

11. The UE according to claim 7 , wherein the subframe within which the CSI-RS is to be transmitted is a seventh subframe in a radio frame.

12. The UE according to claim 7 , wherein the CSI-RS comprises a zero-power CSI-RS and/or a non-zero-power CSI-RS, and the determined type of the subframe comprises at least one of a normal uplink subframe, a normal downlink subframe and a special subframe.