Detecting method, transmitting method and apparatus for common control channel
Embodiments of the present invention provide a detecting method, a transmitting method and an apparatus for a common control channel. The detecting method includes: determining a candidate resource set within virtual downlink resources of a current cell. The candidate resource set can include at least one candidate resource carrying a common control channel of the current cell. A detection is performed on at least one candidate resource in the candidate resource set, so as to acquire the common control channel of the current cell. In the embodiments of the present invention, a selection range of resources for transmitting a common control channel is extended, so that inter-cell interference of the common control channel can be coordinated, and a detection performance of the common control channel can be improved.
1. A method for detecting a common control channel, comprising:
determining a first candidate resource set within downlink resources of a current cell, wherein the first candidate resource set comprises at least one candidate resource carrying a common control channel of the current cell;
performing a detection on at least one candidate resource in the first candidate resource set, so as to acquire the common control channel of the current cell, the common control channel of the current cell carrying a common search space indication information; and
determining, according to the common search space indication information carried by the common control channel of the current cell, an actual resource of a common search space of the current cell from a second candidate resource set, wherein the actual resource is a resource used by the common search space of the current cell.
2. The method according to claim 1 , wherein:
the determining, according to the common search space indication information carried by the common control channel of the current cell, the actual resource of the common search space of the current cell from the second candidate resource set comprising: determining, according to a position information of a common control channel detected resource and the common search space indication information carried by the common control channel of the current cell, the actual resource of the common search space of the current cell, wherein the common control channel detected resource is a candidate resource on which the common control channel of the current cell is detected.
3. The method according to claim 1 , wherein:
the downlink resources are resources for detecting the common control channel of the current cell by user equipment, and /or a bandwidth of the downlink resources is greater than or equal to a predefined bandwidth of frequency domain resources.
4. The method according to claim 1 , wherein:
the common control channel carries at least one of the following information: actual downlink resource bandwidth information of the current cell, system radio frame number, antenna port number, antenna port numbers, physical hybrid automatic repeat request indicator channel (PHICH) configuration information, enhanced physical hybrid automatic repeat request indicator channel (ePHICH) configuration information, scheduling information of a first system information block (SIB 1 ) in a system information block (SIB) and configuration information of the SIB other than the SIB 1 .
5. The method according to claim 1 , wherein:
the common control channel is a physical broadcasting channel (Physical Broadcasting Channel, PBCH).
6. The method according to claim 1 , wherein:
the common search space is configured to receive at least one of following common control information: a random access response, a paging, and a group based power control.
7. The method according to claim 1 , wherein the second candidate resource set is a subset of the first candidate resource set or a subset of a first common search space candidate resource set corresponding to the first candidate resource set.
8. A user equipment, comprising:
a non-transitory processor readable medium storing instructions; and
a processor executing the instructions stored in the non-transitory processor readable medium, wherein execution of the instructions configures the user equipment to:
determine a first candidate resource set within downlink resources of a current cell, wherein the first candidate resource set comprises at least one candidate resource carrying a common control channel of the current cell, the common control channel of the current cell carrying a common search space indication information;
perform a detection on at least one candidate resource in the first candidate resource set, so as to acquire the common control channel of the current cell; and
determine, according to the common search space indication information carried by the common control channel of the current cell, an actual resource of a common search space of the current cell from a second candidate resource set, wherein the actual resource is a resource used by the common search space of the current cell.
9. The user equipment according to claim 8 , wherein:
the determine, according to the common search space indication information carried by the common control channel of the current cell, the actual resource of the common search space of the current cell from the second candidate resource set comprising: determining, according to a position information of a common control channel detected resource and the common search space indication information carried by the common control channel of the current cell, the actual resource of the common search space of the current cell, wherein the common control channel detected resource is a candidate resource on which the common control channel of the current cell is detected.
10. The user equipment according to claim 8 , wherein:
the downlink resources are resources for detecting the common control channel of the current cell by user equipment, and /or a bandwidth of the downlink resources is greater than or equal to a predefined bandwidth of frequency domain resources.
11. The user equipment according to claim 8 , wherein:
the common control channel carries at least one of the following information: actual downlink resource bandwidth information of the current cell, system radio frame number, antenna port number, antenna port numbers, physical hybrid automatic repeat request indicator channel (PHICH) configuration information, enhanced physical hybrid automatic repeat request indicator channel (ePHICH) configuration information, scheduling information of a first system information block (SIB 1 ) in a system information block (SIB) and configuration information of the SIB other than the SIB 1 .
12. The user equipment according to claim 8 , wherein:
the common control channel is a physical broadcasting channel (Physical Broadcasting Channel, PBCH).
13. The user equipment according to claim 8 , wherein:
the common search space is configured to transmit at least one of following common control information: a random access response, a paging, and a group based power control.
14. The user equipment according to claim 8 , wherein the second candidate resource set is a subset of the first candidate resource set or a subset of a first common search space candidate resource set corresponding to the first candidate resource set.