Data transceiving method and apparatus

A data transceiving method, wherein the method comprises:

• receiving, by a receive end, a first reference signal transmitted on a subcarrier in a target physical resource block, wherein the first reference signal comprises a phase noise compensation reference signal (PCRS);
• and
• performing, by the receive end, according to a first mapping rule, corresponding processing on the first reference signal received from the subcarrier in the target physical resource block, wherein the first mapping rule defines at least mapping of the first reference signal to 10 specified subcarriers in a physical resource block, none of the 10 specified subcarriers are in a direct carrier (DC) subcarrier candidate set, and the DC subcarrier candidate set specifies numbers of carriers that are used as DC subcarriers in the physical resource block;
• receiving, by the receive end, data and a second reference signal from a subcarrier in a scheduled physical resource block, wherein the scheduled physical resource block comprises the subcarrier that carries the data and the second reference signal, and the second reference signal comprises a demodulation reference signal (DMRS);
• and
• performing, by the receive end, according to a second mapping rule and the DC subcarrier candidate set, corresponding processing on the data and the second reference signal that are received from the subcarrier in the scheduled physical resource block, wherein the second mapping rule defines at least a manner of mapping the data and the second reference signal to a DC subcarrier, wherein the method further comprises:
• when the receive end is a user equipment, receiving, by the receive end, the second mapping rule that is notified by a base station through semi-static configuration or dynamic configuration, wherein the second mapping rule is determined and sent by the base station to the user equipment based on the DC subcarrier candidate set when the base station schedules the user equipment to receive downlink data and the scheduled physical resource block comprises a DC subcarrier of the user equipment;
• or
• when the receive end is the user equipment, receiving, by the receive end, a third mapping rule and a fourth mapping rule that are notified by a base station through semi-static configuration or dynamic configuration, and determining the second mapping rule according to the third mapping rule and the fourth mapping rule, wherein the third mapping rule defines a manner of mapping the data to a DC subcarrier, or the fourth mapping rule defines a manner of mapping the second reference signal to a DC subcarrier.

A data transceiving method, wherein the method comprises:

• mapping, by a transmit end, a first reference signal to a target physical resource block according to a first mapping rule, wherein the first reference signal comprises a phase noise compensation reference signal (PCRS);
• and
• sending, by the transmit end, the first reference signal using the target physical resource block to which the first reference signal is mapped, wherein
• the first mapping rule defines at least mapping of the first reference signal to 10 specified subcarriers in a physical resource block, none of the 10 specified subcarriers are in a direct carrier (DC) subcarrier candidate set, and the DC subcarrier candidate set specifies numbers of carriers that are used as DC subcarriers in the physical resource blocks;
• determining, by the transmit end, a second mapping rule based on the DC subcarrier candidate set, wherein the second mapping rule defines at least a manner of mapping the data and the second reference signal to a DC subcarrier;
• mapping, by the transmit end to a subcarrier in a scheduled physical resource block according to the second mapping rule and the DC subcarrier candidate set, data and a second reference signal that need to be sent, wherein the second reference signal comprises a demodulation reference signal (DMRS);
• and
• sending, by the transmit end, the mapped data and the mapped second reference signal using the subcarrier to which the data and the second reference signal are mapped in the physical resource block.

A data transceiving method, wherein the method comprises:

• mapping, by a transmit end, a first reference signal to a target physical resource block according to a first mapping rule, wherein the first reference signal comprises a phase noise compensation reference signal (PCRS);
• and
• sending, by the transmit end, the first reference signal using the target physical resource block to which the first reference signal is mapped, wherein
• the first mapping rule defines at least mapping of the first reference signal to 10 specified subcarriers in a physical resource block, none of the 10 specified subcarriers are in a direct carrier (DC) subcarrier candidate set, and the DC subcarrier candidate set specifies numbers of carriers that are used as DC subcarriers in the physical resource block;
• mapping, by the transmit end to a subcarrier in a scheduled physical resource block according to a second mapping rule and the DC subcarrier candidate set, data and a second reference signal that need to be sent, wherein the second reference signal comprises a demodulation reference signal (DMRS);
• and
• sending, by the transmit end, the mapped data and the mapped second reference signal using the subcarrier to which the data and the second reference signal are mapped in the physical resource block, wherein the second mapping rule defines at least a manner of mapping the data and the second reference signal to a DC subcarrier;
• wherein the method further comprises:
• when the transmit end is a user equipment, receiving, by the transmit end, the second mapping rule that is notified by a base station through semi-static configuration or dynamic configuration, wherein the second mapping rule is determined and sent by the base station to the user equipment based on the DC subcarrier candidate set when the base station schedules the user equipment to send uplink data and the scheduled physical resource block comprises a DC subcarrier of the user equipment;
• or
• when the transmit end is the user equipment, receiving, by the transmit end, a third mapping rule and a fourth mapping rule that are notified by a base station through semi-static configuration or dynamic configuration, and determining the second mapping rule according to the third mapping rule and the fourth mapping rule, wherein the third mapping rule defines a manner of mapping the data to a DC subcarrier, or the fourth mapping rule defines a manner of mapping the second reference signal to a DC subcarrier.

A data transceiving apparatus, wherein the apparatus is embodied in a receive end and comprises:

• a transceiver unit, configured to receive a first reference signal transmitted on a subcarrier in a target physical resource block, wherein the first reference signal comprises a phase noise compensation reference signal (PCRS);
• and
• a processing unit, configured to perform, according to a first mapping rule, corresponding processing on the first reference signal received from the subcarrier in the target physical resource block, wherein the first mapping rule defines at least mapping of the first reference signal to 10 specified subcarriers in a physical resource block, none of the 10 specified subcarriers are in a direct carrier (DC) subcarrier candidate set, and the DC subcarrier candidate set specifies numbers of carriers that are used as DC subcarriers in the physical resource block;
• wherein the transceiver unit is further configured to receive data and a second reference signal from a subcarrier in a scheduled physical resource block, wherein the scheduled physical resource block comprises the subcarrier that carries the data and the second reference signal, and the second reference signal comprises a demodulation reference signal (DMRS);
• wherein the processing unit is further configured to:
• determine a second mapping rule based on the DC subcarrier candidate set, wherein the second mapping rule defines at least a manner of mapping the data and the second reference signal to a DC subcarrier;
• and
• perform, according to the second mapping rule and the DC subcarrier candidate set, corresponding processing on the data and the second reference signal that are received from the subcarrier in the scheduled physical resource block.