Control channel resource transmission method, user equipment and base station
Embodiments of the present invention provide a control channel resource transmission method including: obtaining, by a user equipment, a configuration parameter in a candidate control channel set according to a preset protocol and/or higher-layer signaling sent by a base station, where the higher-layer signaling is used to notify the configuration parameter; determining an antenna port according to the obtained configuration parameter; receiving, by using the antenna port, a control channel or a control channel element sent by the base station; and determining, by the base station, the antenna port according to the same configuration parameter as that of the user equipment, and sending, by using the antenna port, the control channel or the control channel element to the user equipment. The embodiments of the present invention are applicable to control channel resource transmission.
1. A method, comprising:
receiving, by a terminal device from a base station, an identity specific to the terminal device;
obtaining, by the terminal device, preset configuration parameters of a candidate control channel set, wherein the preset configuration parameters comprise an aggregation level of the candidate control channel set and a sequence number of the first control channel element corresponding to the aggregation level;
determining, by the terminal device, an antenna port using a function whose input parameters comprise the aggregation level, the sequence number and the identity specific to the terminal device; and
receiving, by the terminal device from the base station and using the antenna port, a control channel or a control channel element, wherein the control channel is an enhanced physical downlink control channel (E-PDCCH), and the control channel element is an enhanced control channel element (E-CCE).
2. The method according to claim 1 , wherein
the identity specific to the terminal device is a radio network temporary identity (RNTI).
3. A method, comprising:
obtaining, by a base station, an identity specific to the terminal device and a configuration parameter of a candidate control channel set, wherein the configuration parameter comprises an aggregation level of the candidate control channel set and a sequence number of the first control channel element corresponding to the aggregation level;
determining, by the base station, an antenna port, using a function whose input parameters comprise the aggregation level, sequence number and the identity specific to the terminal device; and
sending, by the base station to the terminal device, by using the antenna port, a control channel or a control channel element, wherein the control channel is an enhanced physical downlink control channel (E-PDCCH), and the control channel element is an enhanced control channel element (E-CCE).
4. The method according to claim 3 , before the step of sending the control channel or the control channel element, further comprising:
sending, by the base station to the terminal device, the identity specific to the terminal device.
5. The method according to claim 4 , wherein
the identity specific to the terminal device is a radio network temporary identity (RNTI).
6. A terminal device, comprising:
a storage medium including executable instructions; and
a processor;
wherein the executable instructions, when executed by the processor, cause the terminal device to:
receive, from a base station, an identity specific to the terminal device;
obtain preset configuration parameters of a candidate control channel set, wherein the preset configuration parameters comprise an aggregation level of the candidate control channel set and a sequence number of the first control channel element corresponding to the aggregation level;
determine an antenna port using a function whose input parameters comprise the aggregation level of the candidate control channel set, the sequence number and the identity specific to the terminal device; and
receive, from the base station, by using the antenna port, a control channel or a control channel element, wherein the control channel is an enhanced physical downlink control channel (E-PDCCH), and the control channel element is an enhanced control channel element (E-CCE).
7. The terminal device according to claim 6 , wherein
the identity specific to the terminal device is a radio network temporary identity (RNTI).
8. A base station, comprising:
a storage medium including executable instructions; and
a processor;
wherein the executable instructions, when executed by the processor, cause the terminal device to:
obtain an identity specific to the terminal device and a configuration parameter of a candidate control channel set, wherein the configuration parameter comprises an aggregation level of the candidate control channel set and a sequence number of the first control channel element corresponding to the aggregation level;
determine an antenna port, using a function whose input parameters comprise the aggregation level, the sequence number and the identity specific to the terminal device; and
send, to the terminal device, by using the antenna port, a control channel or a control channel element, wherein the control channel is an enhanced physical downlink control channel (E-PDCCH), and the control channel element is an enhanced control channel element (E-CCE).
9. The base station according to claim 8 , wherein the executable instructions, when executed by the processor, further cause the terminal device to:
before sending the control channel or the control channel element, send, to the terminal device, the identity specific to the terminal device.
10. The base station according to claim 9 , wherein
the identity specific to the terminal device is a radio network temporary identity (RNTI).