Cell access method and cell access apparatus

1. A cell access method, comprising:

acquiring configuration information of the pilot resource for each of the plurality of cells that has been searched out;

determining the pilot resource where the pilot signals for each of the plurality of cells are located, based on the acquired configuration information of the pilot resource;

measuring, on the pilot resource where the pilot signals for each of the plurality of cells that has been searched out are located, the pilot signals for each of the plurality of cells that has been searched out, the pilot signals transmitted on a pilot resource for each cell being beam-formed using a set of beam-forming vectors configured for the cell; and

selecting a cell corresponding to an optimum pilot signal measurement result from the plurality of cells that has been searched out and accessing the selected cell,

wherein the acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out comprises:

receiving a broadcast message sent by each of the plurality of cells that has been searched out, the broadcast message sent by each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out from the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message of each cell carrying the configuration information of the pilot resource for the cell and the configuration information of the pilot resource for a neighboring cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received, and acquiring the configuration information of the pilot resource for a cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the neighboring cell carried in the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message from each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received, and determining a neighboring relation between a cell that has been searched out and of which no broadcast message has been received and the cell of which the broadcast message has been received, and determining the configuration information of the pilot resource for the cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the cell of which the broadcast message has been received and the neighboring relation, wherein neighboring cells have an identical quantity of the pilot resource, an identity quantity of pilot resource ports and an identical configuration period; or

acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out, based on a correspondence between identity information of each cell and configuration information of the pilot signals for each cell.

2. The cell access method according to claim 1 , wherein the pilot signals on different pilot resources for an identical cell are beam-formed using different beam-forming vectors, the cell is provided with N pilot resources each having M ports, where N equals to the quantity of the beam-forming vectors configured for the cell, and each of N and M is an integer not smaller than 1.

3. The cell access method according to claim 1 , wherein the pilot signals on different ports of each pilot resource for a cell are beam-formed using different beam-forming vectors, the cell is provided with at least one N-port pilot resource, where N equals to the quantity of the beam-forming vectors configured for the cell, and N is an integer not smaller than 1.

4. A cell access method, comprising:

beam-forming pilot signals for a cell using a set of beam-forming vectors configured for the cell; and

transmitting the beam-formed pilot signals on a pilot resource, to enable a User Equipment to realize the following operations: acquiring configuration information of the pilot resource for each of the plurality of cells that has been searched out; determining the pilot resource where the pilot signals for each of the plurality of cells are located, based on the acquired configuration information of the pilot resource: measuring, on the pilot resource where the pilot signals for each of the plurality of cells that has been searched out are located, the pilot signals for each of the plurality of cells that has been searched out, the pilot signals transmitted on a pilot resource for each cell being beam-formed using a set of beam-forming vectors configured for the cell and selecting a cell corresponding, to an optimum pilot signal measurement result from the plurality of cells that has been searched out and accessing the selected cell,

wherein the acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out comprises:

receiving a broadcast message sent by each of the plurality of cells that has been searched out, the broadcast message sent by each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out from the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message of each cell carrying the configuration information of the pilot resource for the cell and the configuration information of the pilot resource for a neighboring cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received, and acquiring the configuration information of the pilot resource for a cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the neighboring cell carried in the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message from each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received, and determining a neighboring relation between a cell that has been searched out and of which no broadcast message has been received and the cell of which the broadcast message has been received, and determining the configuration information of the pilot resource for the cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the cell of which the broadcast message has been received and the neighboring relation, wherein neighboring cells have an identical quantity of the pilot resource, an identity quantity of pilot resource ports and an identical configuration period; or

acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out, based on a correspondence between identity information of each cell and configuration information of the pilot signals for each cell.

5. The cell access method according to claim 4 , further comprising transmitting configuration information of the pilot resource for the cell.

6. The cell access method according to claim 5 , wherein the transmitting the configuration information of the pilot resource for the cell comprises: transmitting a broadcast message that carries the configuration information of the pilot resource for the cell.

7. The cell access method according to claim 6 , wherein the broadcast message further carries configuration information of a pilot resource for a neighboring cell.

8. The cell access method according to claim 4 , wherein the beam-forming the pilot signals for the cell using the set of beam-forming vectors configured for the cell comprises: beam-forming the pilot signals on different pilot resources for the cell using different beam-forming vectors, wherein the cell is provided with N pilot resources each having M ports, where N equals to the quantity of the beam-forming vectors configured for the cell, and each of N and M is an integer not smaller than 1.

9. The cell access method according to claim 4 , wherein the beam-forming the pilot signals for the cell using the set of beam-forming vectors configured for the cell comprises: beam-forming the pilot signals on different ports of each pilot resource for the cell using different beam-forming vectors, wherein the cell is provided with at least one N-port pilot resource, where N equals to the quantity of the beam-forming vectors configured for the cell, and N is an integer not smaller than 1.

10. A cell access apparatus, comprising:

a processor; and

a memory connected to the processor via a bus interface and configured to store therein a program and data to be used in operation of the processor,

wherein when calling an executing the program and data stored in the memory, the processor is configured for:

acquiring configuration information of the pilot resource for each of the plurality of cells that has been searched out;

determining the pilot resource where the pilot signals for each of the plurality of cells are located, based on the acquired configuration information of the pilot resource;

measuring, on the pilot resource where the pilot signals for each of the plurality of cells that has been searched out are located, the pilot signals for each of the plurality of cells that has been searched out, the pilot signals transmitted on a pilot resource for each cell being beam-formed using a set of beam-forming vectors configured for the cell; and

selecting a cell corresponding to an optimum pilot signal measurement result from the plurality of cells that has been searched and access the selected cell,

wherein the acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out comprises:

receiving a broadcast message sent by each of the plurality of cells that has been searched Gut, the broadcast message sent by each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out from the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message of each cell carrying the configuration information of the pilot resource for the cell and the configuration information of the pilot resource for a neighboring cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received and acquiring the configuration information of the pilot resource for a cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the neighboring cell carried in the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message from each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received, and determining a neighboring relation between a cell that has been searched out and of which no broadcast message has been received and the cell of which the broadcast message has been received, and determining the configuration information of the pilot resource for the cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the cell of which the broadcast message has been received and the neighboring relation, wherein neighboring, cells have an identical quantity of the pilot resource, an identity quantity of pilot resource ports and an identical configuration period; or

acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out, based on a correspondence between identity information of each cell and configuration information of the pilot signals for each cell.

11. The cell access apparatus according to claim 10 , wherein the pilot signals on different pilot resources for an identical cell are beam-formed using different beam-forming vectors, the cell is provided with N pilot resources each having M ports, where N equals to the quantity of the beam-forming vectors configured for the cell, and each of N and M is an integer not smaller than 1; or

the pilot signals on different ports of each pilot resource for a cell are beam-formed using different beam-forming vectors, the cell is provided with at least one N-port pilot resource, where N equals to the quantity of the beam-forming vectors configured for the cell, and N is an integer not smaller than 1.

12. A cell access apparatus, comprising:

a processor; and

a memory connected to the processor via a bus interface and configured to store therein a program and data to be used in operation of the processor,

wherein when calling and executing the program and data stored in the memory, the processor is configured to:

beam-form pilot signals for a cell using a set of beam-forming vectors configured for the cell; and

transmit the beam-formed pilot signals on a pilot resource, to enable a User Equipment to realize the following operations: acquiring configuration information of the pilot resource for each of the plurality of cells that has been searched out; determining the pilot resource where the pilot signals for each of the plurality of cells are located, based on the acquired configuration information of the pilot resource; measuring, on the pilot resource where the pilot signals for each of the plurality of cells that been searched out are located, the pilot signals for each of the plurality of cells that has been searched out, the pilot signals transmitted on a pilot resource for each cell being beam-formed using a set of beam-forming, vectors configured for the cell; and selecting a cell corresponding to an optimum pilot signal measurement result from the plurality of cells that has been searched out and accessing the selected cell,

wherein the acquiring the configuration information of the pilot resource for each of the plurality of cells that has been searched out comprises:

receiving a broadcast message sent by each of the plurality of cells that has been searched out, the broadcast message sent by each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for each of the plurality of cells, that has been searched out from the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message of each cell carrying the configuration information of the pilot resource for the cell and the configuration information of the pilot resource for a neighboring cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received, and acquiring the configuration information of the pilot resource for a cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the neighboring cell carried in the received broadcast message; or

receiving a broadcast message of at least one cell that has been searched out, the broadcast message from each cell carrying the configuration information of the pilot resource for the cell, acquiring the configuration information of the pilot resource for the cell of which the broadcast message has been received, and determining a neighboring relation between a cell that has been searched out and of which no broadcast message has been received and the cell of which the broadcast message has been received, and determining the configuration information of the pilot resource for the cell that has been searched out and of which no broadcast message has been received, based on the configuration information of the pilot resource for the cell of which the broadcast message has been received and the neighboring relation, wherein neighboring cells have an identical quantity of the pilot resource, an identity quantity of pilot resource ports and an identical configuration period; or

acquiring tyre configuration information of the pilot resource for each of the plurality of cells that has been searched out, based on a correspondence between identity information of each cell and configuration information of the pilot signals for each cell.

13. The cell access apparatus according to claim 12 , wherein when calling and executing the program and data stored in the memory, the processor is configured to: transmit configuration information of the pilot resource for the cell.

14. The cell access apparatus according to claim 12 , wherein when calling and executing the program and data stored in the memory, the processor is configured to: beam-form the pilot signals on different pilot resources for the cell using different beam-forming vectors, and the cell is provided with N pilot resources each having M ports, where N equals to the quantity of the beam-forming vectors configured for the cell, and each of N and M is an integer not smaller than 1; or

when calling and executing the program and data stored in the memory, the processor is configured to: beam-form the pilot signals on different ports of each pilot resource for the cell using different beam-forming vectors, and the cell is provided with at least one N-port pilot resource, where N equals to the quantity of the beam-forming vectors configured for the cell, and N is an integer not smaller than 1.