Connection setup method, user equipment, common central control node and communication system

1. A connection setup method performed by a user equipment, said method comprising:

acquiring information transmitted by a plurality of cells;

determining a plurality of candidate cells according to the information transmitted by the plurality of cells;

sending a common connection setup request for the plurality of candidate cells to a common central control node, the common central control node corresponding to each of the plurality of candidate cells; and

receiving a common connection setup message for a plurality of connecting cells transmitted by the common central control node, the plurality of connecting cells being determined from the plurality of candidate cells by the common central control node, so that the user equipment establishes multiple radio connections through each of the plurality of connecting cells,

wherein the acquiring information transmitted by the plurality of cells comprises acquiring a cell ID and a logical cell ID of each cell of the plurality of cells,

the determining a plurality of candidate cells according to the information transmitted by a plurality of cells comprises determining all cells having the same logical cell ID as the plurality of candidate cells, or selecting a portion of the cells having the same logical cell ID as the plurality of candidate cells based on wireless channel measurement results for the plurality of cells,

wherein the method further comprises sending a common connection configuration complete message to the common central control node, and

wherein sending the common connection configuration complete message to the common central control node comprises determining whether the user equipment does not complete configuration for some of the plurality of connecting cells, and when the user equipment does not complete the configuration for some of the plurality of connecting cells, removing the connecting cells that have not been completely configured from the plurality of connecting cells and transmitting the updated plurality of connecting cells through the common connection configuration complete message.

2. The method according to claim 1 , wherein the method further comprising:

sending a common connection setup complete message to the common central control node.

3. The method according to claim 1 , wherein the method further comprising:

receiving a common connection configuration message transmitted by the common central control node, wherein the common connection configuration message is sent by the common central control node through any of the plurality of connecting cells;

sending a common connection configuration complete message to the common central control node, and in the meanwhile applies the common connection configuration to any one

or more of the plurality of connecting cells.

4. A connection setup method in a communication system, the method comprising:

a user equipment in the communication system acquiring information transmitted by a plurality of cells in the communication system;

the user equipment determining a plurality of candidate cells according to the information transmitted by the plurality of cells, and sending a common connection setup request for the plurality of candidate cells to a common central control node in the communication system, the common central control node corresponding to each of the plurality of candidate cells; and

the common central control node determining a plurality of connecting cells from the plurality of candidate cells, and transmitting a common connection setup message for the plurality of connecting cells to the user equipment, so that the user equipment establishes multiple radio connections through each of the plurality of connecting cells,

wherein the acquiring information transmitted by a plurality of cells comprises acquiring a cell ID and a logical cell ID of each cell of the plurality of cells,

the determining a plurality of candidate cells according to the information transmitted by a plurality of cells comprises determining all cells having the same logical cell ID as the plurality of candidate cells, or selecting a portion of the cells having the same logical cell ID as the plurality of candidate cells based on wireless channel measurement results for the plurality of cells,

wherein the method further comprises the user equipment sending a common connection configuration complete message to the common central control node, and

wherein sending the common connection configuration complete message to the common central control node comprises the user equipment determining whether the user equipment does not complete configuration for some of the plurality of connecting cells, and when the user equipment does not complete the configuration for some of the plurality of connecting cells, removing the connecting cells that have not been completely configured from the plurality of connecting cells and transmitting the updated plurality of connecting cells through the common connection configuration complete message.

5. A user equipment, comprising:

a cell acquisition unit configured to acquire information transmitted by a plurality of cells;

a connection request sending unit configured to determine a plurality of candidate cells according to information transmitted by the plurality of cells and send a common connection setup request for the plurality of candidate cells to a common central control node, the common central control node corresponding to each of the plurality of candidate cells; and

a connection message receiving unit configured to receive a common connection setup message for a plurality of connecting cells transmitted by the common central control node, the plurality of connecting cells being determined from the plurality of candidate cells by the common central control node, so that the user equipment establishes multiple radio connections through each of the plurality of connecting cells,

wherein the acquiring information transmitted by a plurality of cells comprises the cell acquisition unit configured to acquire a cell ID and a logical cell ID of each cell of the plurality of cells,

the determining a plurality of candidate cells according to the information transmitted by a plurality of cells comprises the connection request sending unit configured to determine all cells having the same logical cell ID as the plurality of candidate cells, or selecting a portion of the cells having the same logical cell ID as the plurality of candidate cells based on wireless channel measurement results for the plurality of cells,

wherein the user equipment further comprises a configuration complete message sending unit configured to send a common connection configuration complete message to the common central control node, and

wherein sending the common connection configuration complete message to the common central control node comprises determining whether the user equipment does not complete configuration for some of the plurality of connecting cells, and when the user equipment does not complete the configuration for some of the plurality of connecting cells, removing the connecting cells that have not been completely configured from the plurality of connecting cells and transmitting the updated plurality of connecting cells through the common connection configuration complete message.

6. The user equipment according to claim 5 , further comprising:

a configuration message receiving unit configured to receive a common connection configuration message transmitted by the common central control node, wherein the common connection configuration message is sent by the common central control node through any of the plurality of connecting cells; and

a configuration complete message sending unit configured to send a common connection configuration complete message to the common central control node, and in the meanwhile applies the common connection configuration to any one or more of the plurality of connecting cells.

7. A communication system, comprising:

a user equipment configured to acquire information transmitted by a plurality of cells in the communication system, and determine a plurality of candidate cells according to the information transmitted by the plurality of cells and send a common connection setup request for the plurality of candidate cells to a common central control node in the communication system, the common central control node corresponding to each of the plurality of candidate cells; and

a common central control node configured to determine a plurality of connecting cells from the plurality of candidate cells, and transmit a common connection setup message for the plurality of connecting cells to the user equipment, so that the user equipment establishes multiple radio connections through each of the plurality of connecting cells,

wherein the acquiring information transmitted by a plurality of cells comprises acquiring a cell ID and a logical cell ID of each cell of the plurality of cells,

the determining a plurality of candidate cells according to the information transmitted by a plurality of cells comprises determining all cells having the same logical cell ID as the plurality of candidate cells, or selecting a portion of the cells having the same logical cell ID as the plurality of candidate cells based on wireless channel measurement results for the plurality of cells,

wherein the user equipment is further configured to send a common connection configuration complete message to the common central control node, and

wherein sending the common connection configuration complete message to the common central control node comprises determining whether the user equipment does not complete configuration for some of the plurality of connecting cells, and when the user equipment does not complete the configuration for some of the plurality of connecting cells, removing the connecting cells that have not been completely configured from the plurality of connecting cells and transmitting the updated plurality of connecting cells through the common connection configuration complete message.