Pilot signal configuration method and device

A pilot signal configuration method, comprising steps of:

• receiving a pilot signal configuration signaling about a pilot signal;
• and
• determining a configuration of the pilot signal to be transmitted within a special downlink subframe in accordance with the pilot signal configuration signaling,
• wherein the step of receiving the configuration information about the pilot signal comprises receiving third pilot signal configuration signaling;
• and
• the third pilot signal configuration signaling carries configuration information determined for a current UE, the configuration information determined for the current UE comprises first configuration information or second configuration information, the first configuration information indicates that the pilot signal is to be transmitted within both a normal downlink subframe and the special downlink subframe, and the second configuration information indicates that the pilot signal is to be transmitted within the special downlink subframe rather than the normal downlink subframe,
• wherein the configuration information about the pilot signal comprises one or more indices of the pilot signal, each of all or parts of the one or more indices of the pilot signal corresponds to a group of resource elements for transmitting the pilot signal within the special downlink subframe, and the one or more indices of the pilot signal correspond to different resource elements.

A base station, comprising a processor, a memory and a transceiver, wherein the processor is configured to read programs stored in the memory, so as to determine configuration information about a pilot signal to be transmitted within a special downlink subframe for a User Equipment (UE), and transmit through the transceiver a pilot signal configuration signaling to the UE,

• the transceiver is configured to receive and transmit data, and
• the processor takes charge of managing bus architecture as well as general processings, and the memory is configured to store therein data for the operation of the processor,
• wherein the processor is further configured to determine first configuration information about the pilot signal for the UE, the first configuration information indicating that the pilot signal is to be transmitted within both a normal downlink subframe and the special downlink subframe, or determine second configuration information about the pilot signal for the UE, the second configuration information indicating that the pilot signal is to be transmitted within the special downlink subframe rather than the normal downlink subframe;
• and
• wherein the processor is further configured to transmit third pilot signal configuration signaling to the UE, the third pilot signal configuration signaling carries configuration information determined for the UE, and the configuration information determined for the UE comprises the first configuration information or the second configuration information.

A User Equipment (UE), comprising a processor, a memory and a transceiver, wherein the processor is configured to read programs stored in the memory, so as to receive through the transceiver a pilot signal configuration signaling about a pilot signal, and determine a configuration of the pilot signal to be transmitted within a special downlink subframe in accordance with the pilot signal configuration signaling,

• the transceiver is configured to receive and transmit data, and
• the processor takes charge of managing bus architecture as well as general processings, and the memory is configured to store therein data for the operation of the processor,
• wherein the processor is further configured to receive third pilot signal configuration signaling;
• and
• the third pilot signal configuration signaling carries configuration information determined for a current UE, the configuration information determined for the current UE comprises first configuration information or second configuration information, the first configuration information indicates that the pilot signal is to be transmitted within both a normal downlink subframe and the special downlink subframe, and the second configuration information indicates that the pilot signal is to be transmitted within the special downlink subframe rather than the normal downlink subframe,
• wherein the processor is further configured to:
• in the case that the configuration information is the first configuration information search for the resource elements corresponding to one or more indices of the pilot signal carried in the first configuration information and configured to transmit the pilot signal within the special downlink subframe, in the case that no resource element has been searched, determine that the first configuration information is invalid or determine that the configuration of the pilot signal to be transmitted within the normal downlink subframe is valid while the configuration of the pilot signal to be transmitted within the special downlink subframe is invalid;
• and
• in the case that the configuration information is the second configuration information, search for the resource elements corresponding to the one or more indices of the pilot signal carried in the second configuration information and configured to transmit, the pilot signal within the special downlink subframe, and in the case that no resource element has been searched, determine that the second configuration information is invalid.