WO2017156668A1

WO2017156668A1 - Communications method, core network device, and controller device

Info

Publication number: WO2017156668A1
Application number: PCT/CN2016/076202
Authority: WO
Inventors: 彭文杰; 张宏卓; 罗海燕; 石小丽
Original assignee: 华为技术有限公司
Priority date: 2016-03-14
Filing date: 2016-03-14
Publication date: 2017-09-21
Also published as: CN108702727B; CN108702727A

Abstract

The present invention provides a communications method, a core network device, and a controller device. The method comprises: a core network device sends a query message to at least one controller device, the query message carrying an identifier of a user equipment (UE) and being used for instructing the controller device to determine, according to the identifier of the UE, whether the UE is located in a cell range covered by the controller device; the core network device receives a confirmation message sent by a first controller device, the confirmation message being used for indicating that the UE is located in a cell range covered by the first controller device, wherein the first controller device is one of the at least one controller device. By means of the method provided by embodiments of the present invention, a core network device does not need to send a paging message to all base stations in a TAI List of a UE, thereby saving air interface resources when paging the UE, and improving the paging efficiency of the UE.

Description

Communication method, core network device and controller device

Technical field

The present invention relates to communication technologies, and in particular, to a communication method, a core network device, and a controller device.

Background technique

In the existing Long Term Evolution (LTE) system, each LTE cell has a Tracking Area Identity (TAI), which is an area identifier, which is used to identify the LTE cell. position. The TAI of each LTE cell is configured through the network management. Generally, at least two LTE cells use the same TAI. After the user equipment (User Equipment, UE for short) is powered on, an attach procedure is initiated. After receiving the attach request, the Mobility Management Entity (MME) configures a TAI list (TAI list) for the UE.

When the MME is informed of the downlink service, the MME needs to initiate paging for the UE in the idle state. The MME may determine that the idle state UE is in the LTE cell corresponding to the TAI list according to the TAI list configured for the UE. However, the MME cannot determine the specific location of the idle state UE according to the TAI list. Therefore, the MME sends a paging message to all evolved Node Bs (eNBs) corresponding to the TAI list, so as to find the idle state UE, and further The UE sends a downlink service.

However, the method for determining the location of the UE in the prior art causes a large waste of air interface resources.

Summary of the invention

The communication method, the core network device, and the controller device provided by the embodiments of the present invention are used to solve the technical problem that the air interface resources are wasted when the location of the UE is determined in the prior art.

In a first aspect, an embodiment of the present invention provides a communication method, including:

The core network device sends an inquiry message to the at least one controller device, where the query message carries an identifier of the user equipment UE, where the query message is used to indicate that the controller device determines, according to the identifier of the UE, whether the UE is located in the control. Within the cell coverage covered by the device;

Receiving, by the core network device, an acknowledgement message sent by the first controller device, where the acknowledgement message is used by And indicating that the UE is located in a cell coverage by the first controller device, where the first controller device belongs to the at least one controller device.

With the communication method provided by the first aspect, the core network device sends a query message to the at least one controller device, so that the at least one controller device determines, according to the query message, whether the UE is located within its own coverage, when at least one controller device When the first controller device determines that the UE is located in its own coverage, it sends an acknowledgement message to the core network device, so that the core network device learns the specific location of the UE. Therefore, the core network device does not need to send the search to all the base stations in the TAI List of the UE. The message is saved, the air interface resource when paging the UE is saved, and the paging efficiency of the UE is improved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the core network device sends a paging message to the first controller device or the first base station associated with the first controller device, where the The call message carries the identifier of the UE, and the paging message is used to indicate that the first controller device or the first base station associated with the first controller device initiates a paging process.

With the communication method provided by the embodiment, the core network device sends a paging message to the first controller device after the acknowledgment message is received, so that the first controller device UE initiates the paging process without the TAI of the UE. The paging of the UE on the cells of all the base stations in the List saves the air interface resources at the time of paging and improves the paging efficiency.

In conjunction with the first aspect, and a possible implementation manner of the foregoing first aspect, in another possible implementation manner of the first aspect, before the sending, by the core network device, the query message to the at least one controller device, the method Also includes:

Obtaining, by the core network device, tracking area identification information of the at least one controller device;

When the core network device determines that the tracking area identification information of the at least one controller device matches the tracking area identifier TAI in the tracking area identification list of the UE, the core network device determines to send to the at least one controller device The query message.

In conjunction with the first aspect, and the foregoing possible implementation manners of the first aspect, in another possible implementation manner of the first aspect, the at least one controller device is a base station, and the core network device determines at least one When the tracking area identification information of the controller device matches the tracking area identification TAI in the tracking area identification list of the UE, the method before the core network device determines to send the query message to the at least one controller device Also includes:

The core network device receives the first indication information sent by the base station, where the first indication information is used to indicate to the core network device that the base station has a controller function.

With reference to the first aspect, and the foregoing possible implementation manners of the first aspect, in another possible implementation manner of the foregoing aspect, the at least one controller device is a device independent of a base station, and the core network device Before sending the query message to at least one controller device, the method further includes:

The core network device establishes a first communication interface with each of the controller devices.

With reference to the first aspect and the foregoing possible implementation manners of the first aspect, in another possible implementation manner of the first aspect, the core network device acquires tracking area identifier information of the at least one controller device, specifically include:

When the core network device and the controller device establish the first communication interface, the core network device acquires the identifier ID of the controller device and the TAI of the controller device;

or,

When the core network device establishes the first communication interface with the controller device, the core network device acquires an ID of the controller device and a second base station that has a second communication interface with the controller device. ID;

or,

When the core network device establishes the first communication interface with the controller device, the core network device acquires an ID of the controller device and a second base station that has a second communication interface with the controller device. TAI;

or,

When the core network device establishes the first communication interface with the controller device, the core network device acquires an ID of the controller device, and a second base station that has a second communication interface with the controller device. TAI and an ID of the second base station;

or,

When the core network device and the second base station having the second communication interface of the controller device establish a third communication interface, the core network device acquires an ID of the second base station, a TAI of the second base station, and An ID of a controller device having a second communication interface with the second base station.

With the communication method provided by the foregoing embodiment, the core network device and the at least one controller device exchange tracking area identification information of the at least one controller device, so that the core network device can determine, according to the tracking area identification information, the at least one controller device. The query message is sent, so that it is unnecessary to send the query message to all the controller devices, which greatly saves the interface resources between the core network device and the controller device, and further improves the paging efficiency.

In conjunction with the first aspect, and the foregoing possible implementation manners of the first aspect, in another possible implementation manner of the first aspect, the at least one controller device has a first communication interface with the core network device. And the method further includes: before the sending, by the core network device, the paging message to the first base station that is associated with the first controller device, the method further includes:

Determining, by the core network device, a first mapping relationship, where the first mapping relationship includes: a correspondence between the controller device and a second base station having a second communication interface with the controller device, or a correspondence between the controller device and a third base station identical to the TAI of the controller device, the first base station including the second base station and the third base station.

With reference to the first aspect, and the foregoing possible implementation manners of the first aspect, in another possible implementation manner of the foregoing aspect, the determining, by the core network device, the first mapping relationship includes:

The core network device establishes a first communication interface with the controller device, and determines a correspondence between the controller device and the second base station when the first communication interface is established, the controller device The correspondence between the second base station and the second base station includes an ID of the second base station corresponding to the controller device.

The core network device establishes a third communication interface with the second base station, and determines a correspondence between the controller device and the second base station when establishing the third communication interface, where the controller device The correspondence between the second base station and the second base station includes an ID of the unique controller device corresponding to the second base station.

The core network device establishes a first communication interface with the controller device, and determines a correspondence between the controller device and the second base station when establishing the first communication interface;

The core network device establishes a third communication interface with the second base station, and determines a correspondence between the controller device and the second base station when establishing the third communication interface;

The corresponding relationship between the controller device and the second base station includes: an ID of the controller device corresponding to the second base station, or an ID of the second base station corresponding to the controller device.

With the communication method provided by the foregoing embodiment, after receiving the confirmation message of the controller, the core network device can accurately locate according to the first mapping relationship between the controller and the second base station. The second base station where the UE is located, and paging the UE by sending a paging message to the second base station, so that there is no need to send a paging message to all base stations involved in the TAI List of the UE, that is, there is no need to page on all base stations. The UE, thereby greatly saving air interface resources, and improving air interface utilization and paging efficiency.

In a second aspect, an embodiment of the present invention provides a communication method, including:

The controller device receives the query message sent by the core network device, where the query message carries the identifier of the user equipment UE;

Determining, by the controller device, whether the UE is located in a cell range covered by the controller device, according to the query message;

When the controller device determines that the UE is located within a cell range covered by the controller device, the controller device sends an acknowledgement message to the core network device.

With reference to the second aspect, in a possible implementation manner of the second aspect, after the controller device sends the confirmation message to the core network device, the method further includes:

The controller device receives a paging message sent by the core network device, where the paging message carries an identifier of the UE;

The controller device initiates a paging process according to the paging message.

In conjunction with the second aspect, and the possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, before the controller device receives the query message sent by the core network device, the method further includes:

The controller device sends tracking area identification information to the core network device.

With reference to the second aspect and the possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, the controller device is a base station having a controller function, and the controller device receives the core network Before the query message sent by the device, the method further includes:

The base station sends first indication information to the core network device, where the first indication information is used to indicate to the core network device that the base station has a controller function.

With reference to the second aspect and the possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, the controller device is a device independent of a base station, and the controller device receives the core network device Before the query message is sent, the method further includes:

The controller device establishes a first communication interface with the core network device.

In combination with the second aspect and the various possible embodiments of the second aspect, another In a possible implementation manner, the controller device sends the tracking area identifier information to the core network device, specifically:

When the controller device establishes the first communication interface with the core network device, the identifier ID of the controller device and the TAI of the controller device are sent to the core network device;

or,

And when the controller device establishes the first communication interface with the core network device, sending, to the core network device, an ID of the controller device and a second base station having a second communication interface with the controller device ID

or,

And when the controller device establishes the first communication interface with the core network device, sending, to the core network device, an ID of the controller device and a second base station having a second communication interface with the controller device TAI;

or,

And when the controller device establishes the first communication interface with the core network device, sending an ID of the controller device to the core network device, and a second base station having a second communication interface with the controller device The TAI and the ID of the second base station.

With reference to the second aspect and the possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, the controller device sends the ID and the controller device to the core network device The controller device has an ID of a second base station of the second communication interface, or the controller device sends an ID of the controller device to the core network device and a second communication interface with the controller device The TAI of the second base station, or the controller device sends the ID of the controller device to the core network device, the TAI of the second base station having the second communication interface with the controller device, and the Before the ID of the second base station, the method further includes:

The controller device establishes a second communication interface with the second base station, and acquires an ID of the second base station and/or a TAI of the second base station when establishing the second communication interface; or, is established And indicating, by the second base station, an ID of the controller device.

In conjunction with the second aspect, and the possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, the method further includes:

When the controller device determines that the UE is not located within a cell range covered by the controller device, the controller device sends a negative message to the core network device.

The controller device establishes a second communication interface with the second base station, and determines a correspondence between the controller device and the second base station when the second communication interface is established, where the correspondence includes the controller The ID of the second base station corresponding to the device;

The controller device establishes a first communication interface with the core network device, and sends the corresponding relationship to the core network device when the first communication interface is established.

For the beneficial effects of the communication method provided by the foregoing second aspect and the possible implementation manners of the foregoing second aspect, reference may be made to the beneficial effects brought by the foregoing first aspect and the possible implementation manners of the first aspect, Let me repeat.

With reference to the second aspect and the possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, the controller device is a device independent of a base station, and the controller device is to the core After the network device sends the confirmation message, the method further includes:

The controller device sends the second indication information to the UE, where the second indication information is used to indicate that the UE accesses the core network device.

With the communication method provided by the embodiment, when the controller device determines that the UE is located in the cell range covered by the controller, the controller device sends the second indication information to the UE directly after sending the acknowledgement message to the core network device, so that the UE can The second indication information is accessed by the core network device, so that no paging message is sent by the core network device or the base station, which saves air interface resources and greatly improves paging efficiency and air interface resource utilization.

In a third aspect, an embodiment of the present invention provides a core network device, including:

a sending module, configured to send a query message to the at least one controller device, where the query message carries an identifier of the user equipment UE, where the query message is used to indicate that the controller device determines, according to the identifier of the UE, whether the UE is located Within the cell coverage covered by the controller device;

a receiving module, configured to receive an acknowledgment message sent by the first controller, where the acknowledgment message is used to indicate that the UE is located in a cell coverage area of the first controller device, where the first controller device belongs to The at least one controller device.

In conjunction with the third aspect, in a possible implementation manner of the third aspect, the sending module is further configured to send a paging to the first controller device or the first base station associated with the first controller device The message that the paging message carries the identifier of the UE, and the paging message is used to indicate that the first controller device or the first base station associated with the first controller device initiates a paging process.

In conjunction with the third aspect and the possible implementation manners of the third aspect, in another possible implementation manner of the third aspect, the core network device further includes a determining module,

The receiving module is configured to acquire tracking area identification information of the at least one controller device before the sending module sends the query message to the at least one controller device;

The determining module, configured to: when the tracking area identifier information of the at least one controller device matches the tracking area identifier TAI in the tracking area identifier list of the UE, determine to send the query message to the at least one controller device .

In conjunction with the third aspect, and the possible implementation manners of the third aspect, in another possible implementation manner of the third aspect, the at least one controller device is a base station,

The receiving module is further configured to: before the determining module determines to send the query message to the at least one controller device, receive first indication information sent by the base station, where the first indication information is used for The core network device indicates that the base station has a controller function.

In conjunction with the third aspect and the possible implementation manners of the third aspect, in another possible implementation manner of the third aspect, the at least one controller device is a device independent of the base station,

The first interface establishing module is configured to establish a first communication interface with each of the controller devices before the sending module sends the query message to the at least one controller device.

With reference to the third aspect, and the possible implementation manner of the third aspect, in another possible implementation manner of the third aspect, the receiving module includes:

a first receiving unit, configured to acquire an identifier ID of the controller device and a TAI of the controller device when the first interface establishing module and the controller device establish the first communication interface;

or.

a second receiving unit, configured to acquire an ID of the controller device and a second communication interface with the controller device when the first interface establishing module establishes the first communication interface with the controller device The ID of the second base station;

or,

a third receiving unit, configured to acquire an ID of the controller device and a second communication interface with the controller device when the first interface establishing module establishes the first communication interface with the controller device The TAI of the second base station;

or,

a fourth receiving unit, configured to acquire an ID of the controller device and a second communication interface with the controller device when the first interface establishing module and the controller device establish the first communication interface The TAI of the second base station and the ID of the second base station;

or,

a fifth receiving unit, configured to acquire an ID of the second base station, where the first base station establishing module and a second base station that has a second communication interface with the controller device The TAI of the second base station and the ID of the controller device having the second communication interface with the second base station.

With reference to the third aspect, and the possible implementation manner of the third aspect, in another possible implementation manner of the third aspect, the at least one controller device has a first communication interface with the core network device and The device independent of the base station, the core network device further includes:

a second interface establishing module, configured to determine a first mapping relationship before the sending module sends a paging message to the first base station associated with the first controller device, where the first mapping relationship includes: the controller a correspondence between the device and a second base station having a second communication interface with the controller device, or a correspondence between the controller device and a third base station that is the same as the TAI of the controller device, The first base station includes the second base station and the third base station.

With reference to the third aspect, and the possible implementation manner of the third aspect, in another possible implementation manner of the third aspect, the second interface establishing module is configured to establish a first communication with the controller device. An interface, and determining a correspondence between the controller device and the second base station when establishing the first communication interface, where a correspondence between the controller device and the second base station includes the control The ID of the second base station corresponding to the device.

With reference to the third aspect and the possible implementation manners of the third aspect, in another possible implementation manner of the third aspect, the second interface establishing module is configured to establish a third communication with the second base station. An interface, and determining a correspondence between the controller device and the second base station when establishing the third communication interface, where a correspondence between the controller device and the second base station includes the The ID of the unique controller device corresponding to the second base station.

In conjunction with the third aspect and the possible implementation manners of the third aspect, in another possible implementation manner of the third aspect, the second interface establishing module is specifically configured to establish a first with the controller device. a communication interface, and determining a correspondence between the controller device and the second base station when establishing the first communication interface; and establishing a third communication interface with the second base station, And determining a correspondence between the controller device and the second base station when establishing the third communication interface;

For the beneficial effects of the communication method provided by the foregoing third aspect and the possible implementation manners of the foregoing third aspect, reference may be made to the beneficial effects brought by the foregoing first aspect and the possible implementation manners of the first aspect, Let me repeat.

In a fourth aspect, an embodiment of the present invention provides a controller device, including:

a receiving module, configured to receive a query message sent by the core network device, where the query message carries an identifier of the user equipment UE;

a determining module, configured to determine, according to the query message, whether the UE is located in a cell range covered by the controller device;

And a sending module, configured to send an acknowledgement message to the core network device when the determining module determines that the UE is located in a cell range covered by the controller device.

With reference to the fourth aspect, in another possible implementation manner of the fourth aspect, the receiving module is further configured to: after the sending module sends an acknowledgement message to the core network device, send the core network device to send a paging message, where the paging message carries an identifier of the UE;

The sending module is further configured to initiate a paging process according to the paging message.

With reference to the fourth aspect, and the possible implementation manner of the fourth aspect, in another possible implementation manner of the fourth aspect, the sending module is further configured to receive, by the receiving module, a query message sent by a core network device. Previously, tracking area identification information is sent to the core network device.

With reference to the fourth aspect, and the possible implementation manner of the fourth aspect, in another possible implementation manner of the fourth aspect, the controller device is a base station having a controller function,

The sending module is further configured to: before the receiving module receives the query message sent by the core network device, send the first indication information to the core network device, where the first indication information is used to indicate to the core network device The base station has a controller function.

With reference to the fourth aspect, and the possible implementation manner of the fourth aspect, in another possible implementation manner of the fourth aspect, the controller device is a device that is independent of the base station, and the controller device further includes:

a first interface establishing module, configured to receive, by the receiving module, a query sent by a core network device Before the information, a first communication interface is established with the core network device.

With reference to the fourth aspect, and the possible implementation manner of the fourth aspect, in another possible implementation manner of the fourth aspect, the sending module includes:

a first sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an identifier ID of the controller device and the controller to the core network device TAI of the device;

or,

a second sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an ID of the controller device and the controller to the core network device The device has an ID of the second base station of the second communication interface;

or,

a third sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an ID of the controller device and the controller to the core network device The device has a TAI of the second base station of the second communication interface;

or,

a fourth sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an ID of the controller device to the core network device, and the controller The device has a TAI of the second base station of the second communication interface and an ID of the second base station.

With reference to the fourth aspect, and the possible implementation manner of the fourth aspect, in another possible implementation manner of the fourth aspect, the controller device further includes:

a second interface establishing module, configured to send, by the second sending unit, the ID of the controller device to the core network device and the ID of the second base station that has a second communication interface with the controller device, or Transmitting, by the third sending unit, the ID of the controller device to the core network device and the TAI of the second base station having the second communication interface with the controller device, or in the fourth sending unit Sending, by the core network device, the ID of the controller device, the TAI of the second base station having the second communication interface of the controller device, and the ID of the second base station, establishing a second with the second base station a communication interface, and acquiring an ID of the second base station and/or a TAI of the second base station when establishing the second communication interface; or, when establishing the second communication interface, to the second base station Indicates the ID of the controller device.

In combination with the fourth aspect and various possible implementations of the fourth aspect, another In a possible implementation, the sending module is further configured to send a negative message to the core network device when the determining module determines that the UE is not located within a cell coverage area of the controller device.

With reference to the fourth aspect, and the possible implementation manner of the fourth aspect, in another possible implementation manner of the fourth aspect, the controller device is a device independent of the base station, and the controller device further includes the first An interface establishing module and a second interface establishing module;

The second interface establishing module is configured to establish a second communication interface with the second base station, and determine a correspondence between the controller device and the second base station when the second communication interface is established, where the correspondence relationship is Include an ID of the second base station corresponding to the controller device;

The first interface establishing module is configured to establish a first communication interface with the core network device, and send the corresponding relationship to the core network device when the first communication interface is established.

With reference to the fourth aspect, and the possible implementation manner of the fourth aspect, in another possible implementation manner of the fourth aspect, the controller device is a device independent of the base station,

The sending module is further configured to: after sending an acknowledgment message to the core network device, send the second indication information to the UE, where the second indication information is used to indicate that the UE accesses the core network device.

The fourth aspect and the communication method provided by each possible implementation manner of the foregoing fourth aspect, the beneficial effects of which can be seen in the first aspect and the possible implementation manners of the first aspect, which are not Let me repeat.

In a fifth aspect, the present invention provides a core network device, including:

a transceiver, configured to send a query message to the at least one controller device, and receive an acknowledgement message sent by the first controller device;

The query message carries the identifier of the user equipment UE, where the query message is used to indicate that the controller device determines, according to the identifier of the UE, whether the UE is located in a cell range covered by the controller device, and the confirmation message is used by the And indicating that the UE is located in a cell coverage by the first controller device, where the first controller device belongs to the at least one controller device.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the transceiver is further configured to send a paging message to the first controller device or the first base station associated with the first controller device, The paging message carries an identifier of the UE, where the paging message is used to indicate that the first controller device or the first base station associated with the first controller device initiates a paging process.

With reference to the fifth aspect and the possible implementation manners of the fifth aspect, in another possible implementation manner of the fifth aspect, the core network device further includes a processor,

The transceiver is further configured to acquire tracking area identification information of the at least one controller device before sending the query message to the at least one controller device;

The processor, configured to: when the tracking area identifier information of the at least one controller device matches the tracking area identifier TAI in the tracking area identifier list of the UE, determine to send the query message to the at least one controller device .

With reference to the fifth aspect, and the possible implementation manner of the fifth aspect, in another possible implementation manner of the fifth aspect, the at least one controller device is a base station,

The transceiver is further configured to: before the processor determines to send the query message to the at least one controller device, receive first indication information sent by the base station, where the first indication information is used for The core network device indicates that the base station has a controller function.

With reference to the fifth aspect, and the possible implementation manners of the fifth aspect, in another possible implementation manner of the fifth aspect, the at least one controller device is a device independent of the base station,

The transceiver is further configured to establish a first communication interface with each of the controller devices before sending the query message to the at least one controller device.

With reference to the fifth aspect and the possible implementation manners of the fifth aspect, in another possible implementation manner of the fifth aspect,

The transceiver, specifically for establishing the first communication interface with the controller device, acquiring an identifier ID of the controller device and a TAI of the controller device;

or,

The transceiver is specifically configured to acquire an ID of the controller device and an ID of a second base station that has a second communication interface with the controller device when the first communication interface is established with the controller device;

or,

The transceiver, specifically for establishing the first communication interface with the controller device, acquiring an ID of the controller device and a TAI of a second base station having a second communication interface with the controller device;

or,

The transceiver is specifically configured to acquire the first communication interface with the controller device Taking an ID of the controller device, a TAI of a second base station having a second communication interface with the controller device, and an ID of the second base station;

or,

The transceiver is configured to acquire an ID of the second base station, a TAI and a location of the second base station, when establishing a third communication interface with a second base station that has a second communication interface with the controller device. The second base station has an ID of a controller device of the second communication interface.

With reference to the fifth aspect, and the possible implementation manner of the fifth aspect, in another possible implementation manner of the fifth aspect, the at least one controller device has a first communication interface with the core network device and a device independent of the base station,

The processor is further configured to determine a first mapping relationship before the transceiver sends a paging message to the first base station associated with the first controller device, where the first mapping relationship includes: the controller a correspondence between the device and a second base station having a second communication interface with the controller device, or a correspondence between the controller device and a third base station that is the same as the TAI of the controller device, The first base station includes the second base station and the third base station.

The processor is specifically configured to determine a correspondence between the controller device and the second base station when the transceiver establishes the first communication interface with the controller device, where the controller The correspondence between the device and the second base station includes an ID of the second base station corresponding to the controller device.

With reference to the fifth aspect, and the possible implementation manner of the fifth aspect, in another possible implementation manner of the fifth aspect, the processor is specifically configured to establish, at the transceiver, the second base station Corresponding relationship between the controller device and the second base station, where the correspondence between the controller device and the second base station includes the single corresponding to the second base station The ID of the controller device.

With reference to the fifth aspect, and the possible implementation manner of the fifth aspect, in another possible implementation manner of the fifth aspect, the processor is specifically configured to establish, at the transceiver, the controller device Determining a correspondence between the controller device and the second base station when a communication interface, and determining the controller device and the device when the transceiver establishes a third communication interface with the second base station Describe the correspondence between the second base stations;

For the beneficial effects of the communication method provided by the foregoing fifth aspect and the possible implementation manners of the foregoing fifth aspect, reference may be made to the beneficial effects brought by the foregoing first aspect and the possible implementation manners of the first aspect, Let me repeat.

In a sixth aspect, the present invention provides a controller device, including:

a transceiver, configured to receive a query message sent by the core network device, where the query message carries an identifier of the user equipment UE;

a processor, configured to determine, according to the query message, whether the UE is located in a cell range covered by the controller device;

The transceiver is further configured to send an acknowledgement message to the core network device when the processor determines that the UE is located in a cell range covered by the controller device.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the transceiver is further configured to: after sending an acknowledgment message to the core network device, receive a paging message sent by the core network device, And initiating a paging process according to the paging message; the paging message carries an identifier of the UE.

With reference to the sixth aspect, and the possible implementation manner of the sixth aspect, in another possible implementation manner of the sixth aspect, the transceiver is further configured to: before receiving the query message sent by the core network device, The core network device sends the tracking area identification information.

With reference to the sixth aspect, and the possible implementation manners of the sixth aspect, in another possible implementation manner of the sixth aspect, the controller device is a base station having a controller function,

The transceiver is further configured to: before receiving the query message sent by the core network device, send the first indication information to the core network device, where the first indication information is used to indicate to the core network device that the base station has Controller function.

With reference to the sixth aspect and the possible implementation manners of the sixth aspect, in another possible implementation manner of the sixth aspect, the controller device is a device independent of the base station,

The transceiver is further configured to establish a first communication interface with the core network device before receiving the query message sent by the core network device.

With reference to the sixth aspect and the possible implementation manners of the sixth aspect, in another possible implementation manner of the sixth aspect,

The transceiver, specifically for establishing the first communication interface with the core network device, sending the identifier ID of the controller device and the TAI of the controller device to the core network device;

or,

The transceiver is specifically configured to: when the first communication interface is established with the core network device, send an ID of the controller device to the core network device and a second communication interface with the controller device The ID of the second base station;

or,

The transceiver is specifically configured to: when the first communication interface is established with the core network device, send an ID of the controller device to the core network device and a second communication interface with the controller device The TAI of the second base station;

or,

The transceiver is specifically configured to: when the first communication interface is established with the core network device, send the ID of the controller device to the core network device, and the second communication interface exists with the controller device. The TAI of the second base station and the ID of the second base station.

The transceiver is further configured to send, to the core network device, an ID of the controller device and an ID of a second base station that has a second communication interface with the controller device, or Transmitting, by the device, an ID of the controller device and a TAI of a second base station having a second communication interface with the controller device, or transmitting an ID of the controller device to the core network device, and the controlling Before the device has the TAI of the second base station of the second communication interface and the ID of the second base station, establishing a second communication interface with the second base station, and acquiring the second when establishing the second communication interface The ID of the base station and/or the TAI of the second base station; or, when establishing the second communication interface, indicating the ID of the controller device to the second base station.

The transceiver is further configured to send a negative message to the core network device when the processor determines that the UE is not located within a cell coverage by the controller device.

The transceiver is further configured to establish a second communication interface with the second base station before receiving the query message sent by the core network device, and determine the controller device and the second base station when establishing the second communication interface Corresponding relationship, and establishing a first communication interface with the core network device, and transmitting the corresponding relationship to the core network device when establishing the first communication interface; the corresponding relationship includes the controller The ID of the second base station corresponding to the device.

The transceiver is further configured to: after sending an acknowledgment message to the core network device, send the second indication information to the UE, where the second indication information is used to indicate that the UE accesses the core network device.

For the beneficial effects of the communication method provided by the foregoing sixth aspect and the possible implementation manners of the foregoing sixth aspect, reference may be made to the beneficial effects brought by the foregoing first aspect and the possible implementation manners of the first aspect, Let me repeat.

In a seventh aspect, the embodiment of the present invention provides a communication system, which may include the core network device involved in the foregoing fifth and fifth possible embodiments, and may further include the foregoing sixth and sixth aspects. A controller device involved in each of the possible embodiments of the aspect.

For the beneficial effects of the communication system provided by the foregoing seventh aspect, reference may be made to the beneficial effects brought by the first aspect and the possible implementation manners of the first aspect, and details are not described herein again.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a system architecture diagram of a nocell according to an embodiment of the present invention;

2 is a schematic diagram 1 of a multiplexed network architecture according to an embodiment of the present invention;

FIG. 3 is a schematic diagram 2 of a multiplexed network architecture according to an embodiment of the present disclosure;

4 is a schematic diagram 3 of a multiplexed network architecture according to an embodiment of the present invention;

FIG. 5 is a signaling flowchart of Embodiment 1 of a communication method according to an embodiment of the present disclosure;

FIG. 6 is a signaling flowchart of Embodiment 2 of a communication method according to an embodiment of the present disclosure;

FIG. 7 is a schematic flowchart of Embodiment 3 of a communication method according to an embodiment of the present disclosure;

FIG. 8 is a signaling flowchart 1 of a core network device acquiring tracking area identification information of a controller device according to an embodiment of the present disclosure;

FIG. 9 is a flowchart 1 of signaling establishment of a first communication interface according to an embodiment of the present invention;

FIG. 10 is a flow chart 2 of establishing a first communication interface according to an embodiment of the present invention;

FIG. 11 is a signaling flowchart 2 of a core network device acquiring tracking area identification information of a controller device according to an embodiment of the present disclosure;

FIG. 12 is a flowchart 1 of signaling establishment of a second communication interface according to an embodiment of the present invention;

FIG. 13 is a second flowchart of establishing a second communication interface according to an embodiment of the present invention;

FIG. 14 is a signaling flowchart 3 of a core network device acquiring tracking area identification information of a controller device according to an embodiment of the present disclosure;

FIG. 15 is a flowchart 1 of signaling establishment of a third communication interface according to an embodiment of the present invention;

FIG. 16 is a second flowchart of signaling establishment of a third communication interface according to an embodiment of the present invention;

FIG. 17 is a signaling flowchart of sending a query message by a core network device to a base station having a controller function according to an embodiment of the present disclosure;

FIG. 18 is a schematic flowchart diagram of Embodiment 4 of a communication method according to an embodiment of the present disclosure;

FIG. 19 is a signaling flowchart 1 of determining, by a core network device, a first mapping relationship according to an embodiment of the present disclosure;

FIG. 20 is a signaling flowchart 2 of determining, by a core network device, a first mapping relationship according to an embodiment of the present disclosure;

FIG. 21 is a signaling flowchart of Embodiment 5 of a communication method according to an embodiment of the present disclosure;

FIG. 22 is a schematic structural diagram of Embodiment 1 of a core network device according to an embodiment of the present disclosure;

FIG. 23 is a schematic structural diagram of Embodiment 2 of a core network device according to an embodiment of the present disclosure;

FIG. 24 is a schematic structural diagram of Embodiment 3 of a core network device according to an embodiment of the present disclosure;

FIG. 25 is a schematic structural diagram of Embodiment 4 of a core network device according to an embodiment of the present disclosure;

FIG. 26 is a schematic structural diagram of Embodiment 1 of a controller device according to an embodiment of the present disclosure;

FIG. 27 is a schematic structural diagram of Embodiment 2 of a controller device according to an embodiment of the present disclosure;

FIG. 28 is a schematic structural diagram of Embodiment 6 of a core network device according to an embodiment of the present disclosure;

FIG. 29 is a schematic structural diagram of Embodiment 3 of a controller device according to an embodiment of the present disclosure.

detailed description

The communication method provided by the embodiment of the present invention can be applied to the determination of the location of the UE under the 3G core network, and can also be applied to the determination of the location of the UE under the 4G core network. It should be noted that the 3G core network or the 4G core network involved in the embodiments of the present invention may be combined with a new system architecture. Optionally, the new system architecture may be a nocell system architecture. As shown in FIG. 1 , the nocell system may include a controller (Controller) and a plurality of transmitting points (TPs), where the TP is used to provide air interface services, and the controller is used for coordinated scheduling and resource management of each TP. The coverage of the controller constitutes a cell, and the cell may be a hyper cell. A hyper cell may include multiple cells covered by the TP. In the initial deployment phase of the nocell, in order to reduce the deployment cost, the deployment of the nocell system can depend on the current UMTS system or the LTE system, that is, the nocell system only deploys the corresponding TP and Controller, and does not have the corresponding core network of the nocell system, but Reuse the core network of the current UMTS system or reuse the core network of the LTE system. The method according to the embodiment of the present invention is applicable to a network architecture of a nocell multiplexing UMTS system core network or a network architecture suitable for a nocell multiplexing LTE system core network. In addition, any of the above-mentioned multiplexed network architectures may include a core network device and a controller device. Optionally, the controller device involved in the embodiment of the present invention may be a base station having a Controller function, and may also be It is an independent Controller, and can also be other devices with Controller functions, such as Radio Network Controller (RNC) in UMTS system. Optionally, in the multiplexed network architecture, the controller device may be multiple.

Taking the network architecture of the LTE system core network as an example, it can be divided into two scenarios: the first one is a scenario where the base station and the Controller are co-located, and the controller device is a base station with a controller function, and the multiplexed network. The architecture includes the core network device and the base station with the controller function. Referring to the schematic diagram of the multiplexed network architecture shown in FIG. 2, the hyper cell covered by the controller overlaps with the cell range of the base station, and the specific hyper cell and the LTE cell may Fully overlapping, or the hyper cell is in the LTE cell coverage, or the LTE cell is in the hyper cell coverage, or the hyper cell partially overlaps with the LTE cell coverage. It should be noted that FIG. 2 is only an example; A scenario in which the base station and the controller are not co-located. In this case, the controller device is an independent controller, and the multiplexed network architecture includes the core network device. Base station and Controller. For the latter scenario, refer to Figure 2 of the multiplexed network architecture shown in Figure 3 and Figure 3 of the multiplexed network architecture shown in Figure 4, which is the same as the first scenario, and the hyper cell and base station cell range covered by the Controller There is an overlapping area. Specifically, the hyper cell and the LTE cell may overlap completely, or the hyper cell is in the LTE cell coverage, or the LTE cell is in the hyper cell coverage, or the hyper cell and the LTE cell coverage partially overlap. 3 and Figure 4 are just an example. It should be noted that, in the above-mentioned FIG. 2 to FIG. 4, the outermost circle in the figure indicates the LTE cell coverage, and the LTE cell coverage may be the coverage of all the cells in the corresponding LTE base station, or may be the corresponding LTE base station. The coverage of the cells is not limited in the embodiment of the present invention; the dotted circle indicates the hyper cell coverage, and the innermost solid circle indicates the single TP coverage under the nocell. It should be noted that the above scenarios are also applicable to the network architecture of the UMTS system core network, and details are not described herein.

For the first scenario, the information exchange between the controller device and the core network device can reuse the interface between the existing base station and the core network device; for the second scenario, the controller device can be connected to the core network device. There is a direct communication interface, and information interaction with the core network device can also be performed through a communication interface with the base station (refer to the description of the following embodiments for details).

Certainly, the communication method according to the embodiment of the present invention includes, but is not limited to, the foregoing application scenario, and the communication method provided by the embodiment of the present invention may be used as long as the scenario in which the controller device participates in the paging is involved.

In addition, the user equipment UE in the embodiment of the present invention may be a wireless terminal such as a mobile phone or a tablet computer, and the wireless terminal includes a device for providing voice and/or data services to the user. Optionally, the device may have a wireless connection function. Handheld device, or other processing device connected to a wireless modem. Moreover, the wireless terminal can also communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), for example, the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" "Phone" and a computer having a mobile terminal, which may be a portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile device that can interact with the core network for voice and/or data.

A base station according to an embodiment of the present invention may refer to a device in an access network that communicates with a wireless terminal through at least one sector on an air interface. The base station can be used to convert the received air frame and the IP packet into each other as a router between the wireless terminal and the rest of the access network, wherein The remainder of the access network may include an Internet Protocol (IP) network. The base station may also coordinate the attribute management of the air interface. For example, the base station may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNodeB or eNB or e-NodeB, evolved Node B) in LTE. Not limited.

The core network device in the embodiment of the present invention may be a Mobility Management Entity (MME) in the LTE system, or may be a Serving GPRS Support Node (SGSN) in the UMTS system. Mobile Switching Center (MSC).

It will be understood that "at least one" as used in the embodiments of the invention means "one" or "one or more."

The communication method of the embodiment of the present invention is to solve the technical problem that the paging message needs to be sent to all the base stations when the location of the UE is determined in the prior art, which causes a large waste of air interface resources.

The technical solutions of the present invention and the technical solutions of the present invention are described in detail below with reference to specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

FIG. 5 is a signaling flowchart of Embodiment 1 of a communication method according to an embodiment of the present invention. This embodiment relates to a specific process in which a core network device pages a UE through a controller device to save air interface resources. As shown in FIG. 5, the method includes the following steps:

S101: The core network device sends a query message to the at least one controller device.

The query message carries an identifier of the UE, where the query message is used to indicate that the at least one controller device determines, according to the identifier of the UE, whether the UE is located in a cell range covered by the at least one controller device.

Specifically, when the core network device determines that the service data of the UE is currently to be transmitted, the core network device sends an inquiry message to the at least one controller device. Optionally, the at least one controller device may be configured to interface with the core network device. All controller devices may also be part of the controller devices that the core network device filters from all the controller devices, and the at least one controller device may be a base station having a controller function, or may have a communication interface with the base station. The base station-independent device, such as the controller controller in the above-mentioned multiplexed network architecture, is not limited to the at least one controller device in this embodiment. The above query message is used to indicate that at least one controller device is based on the UE The identifier of the UE is determined to be located in a cell coverage area of the at least one controller device, where the identifier of the UE may be an International Mobile Subscriber Identification Number (IMSI) or a temporary mobile subscriber identity ( Serving-Temporary Mobile Subscriber Identity (S-TMSI) or the Cell Radio Network Temporary Identifier (C-RNTI) allocated by the eNB for the UE or the dedicated link identifier allocated by the controller device to the UE (Dedicated Connection Identifier, DCID for short) may also be other identifiers, which are not limited by the present invention. It should be noted that the foregoing DCID is a unique identifier of the UE in the hypercell.

S102: The at least one controller device receives the query message.

S103: The at least one controller device determines, according to the query message, whether the UE is located in a cell range covered by the at least one controller device.

Specifically, after receiving the query message, the at least one controller device queries, according to the query message, whether the UE is located in a cell range covered by the UE. Optionally, the tracking signal sent by the UE in a certain state may be used to determine the exact location of the UE. Specifically, in the nocell involved in the multiplexed network architecture, the UE has two states: an ACTIVE state and In the ECO state, in the ACTIVE state, the UE can support the scheduling data transmission, and the UE in the ECO state (the UE may not have the service transmission at this time) will send a tracking signal to the TP under the at least one controller device at intervals, and the TP receives After the tracking signal is sent, the measurement report is reported to the associated controller device. Based on the mechanism, the at least one controller device can know whether the UE corresponding to the identifier of the UE is located in its own coverage. Optionally, the foregoing “a specific state” may be an ECO state in a multiplexed network architecture, where the ECO state is actually a state in a power saving mode, between an idle state and a connected state, In this state, the UE can send some signals to the network side.

S104: When the first controller device determines that the UE is located in a cell coverage area, the first controller device sends an acknowledgement message to the core network device, where the first controller device belongs to the at least one controller device. .

Specifically, when the first controller device in the at least one controller device determines that the UE is located in the cell range covered by the UE, the first controller device sends an acknowledgement (ACK) message to the core network device to notify the core network device. The UE is located within the coverage of the first controller device.

S105: The core network device receives the acknowledgement message sent by the first controller device.

The acknowledgement message is used to indicate that the UE is located in a cell coverage area covered by the first controller device.

Specifically, after receiving the acknowledgement message sent by the first controller device, the core network device learns that the UE is located in the coverage of the first controller device, that is, the core network device knows the specific location of the UE by using the acknowledge message, and does not need to The paging message is sent to all the base stations in the TAI List of the UE (that is, the UE is not required to be paged on the cells covered by all the base stations), so that the location of the UE can be determined, thereby greatly saving the air interface resources when paging the UE.

Optionally, if the core network device does not receive any acknowledgment message from the controller device for replying to the query message, the paging method of the prior art is used, and details are not described herein again. The core network device mentioned here does not receive any confirmation message that the controller device responds to the query message, and all the controller devices that receive the query message may reply with a negative (NACK) message, or may be a core network device. When a query message is sent, a timer is started, and the acknowledgment message is still not received when the timer expires, so that the core network device can re-send the query message or adopt the prior art paging method to avoid the core network device. Waiting indefinitely.

The communication method provided by the embodiment of the present invention sends a query message to the at least one controller device by using the core network device, so that the at least one controller device determines, according to the query message, whether the UE is located in its own coverage, in at least one controller device. The first controller device determines that the UE is located in its own coverage, and sends an acknowledgement message to the core network device, so that the core network device learns the specific location of the UE. Therefore, the core network device does not need to send to all base stations in the TAI List of the UE. The paging message saves the air interface resource when paging the UE, and improves the paging efficiency of the UE.

FIG. 6 is a signaling flowchart of Embodiment 2 of a communication method according to an embodiment of the present invention. The embodiment relates to a specific process in which the core network device sends a paging message to the first controller device after receiving the acknowledgement message sent by the first controller device, so that the UE accesses the core network device. On the basis of the foregoing embodiment, further, after the foregoing S105, the method may further include:

S106: The core network device sends a paging message to the first controller device.

The paging message carries an identifier of the UE, and the paging message is used to instruct the first controller device to initiate a paging process.

S107: The first controller device initiates a paging process according to the paging message.

In this embodiment, after receiving the acknowledgement message sent by the first controller device, the core network device learns that the UE is located in the coverage of the first controller device, and the core network device sends the bearer identifier to the first controller device. The paging message is such that the first controller device can initiate a paging procedure to the UE to enable the UE to access the core network device after transitioning from the idle state to the active state. Optionally, after the core network device indicates that the first controller device sends the paging message to the UE, the UE is instructed to initiate a random access procedure to the first controller device, that is, the UE transits to the activated state, and then passes the first controller device. The service data is sent to the UE. Optionally, the first controller device is directly sent to the UE to send the service data. Optionally, the first controller device in this embodiment may be independent of the device of the base station, and may be, for example, a controller or a base station having a controller function.

According to the communication method provided by the embodiment of the present invention, after receiving the acknowledgment message, the core network device sends a paging message to the first controller device in a targeted manner, so that the first controller device UE initiates a paging process without the TAI of the UE. The paging of the UE on the cells of all the base stations in the List saves the air interface resources at the time of paging and improves the paging efficiency.

FIG. 7 is a schematic flowchart diagram of Embodiment 3 of a communication method according to an embodiment of the present disclosure. This embodiment relates to a specific process in which a core network device selects to send a query message to at least one controller device to save interface resources between the core network device and the at least one controller device. On the basis of the foregoing embodiment, further, before S101, the method may further include:

S201: The at least one controller device sends the tracking area identifier information to the core network device.

S202: The core network device acquires tracking area identifier information of the at least one controller device.

S203: When the core network device determines that the tracking area identifier information of the at least one controller device matches the TAI in the tracking area identifier list of the UE, the core network device determines to send the query message to the at least one controller device.

Specifically, the core network device can obtain the tracking area identifier information of all the controller devices in the core network device. Optionally, the tracking area identifier information can be used to identify the TAIs of the controller devices. Therefore, after receiving the tracking area identification information, the core network device determines that the tracking area identification information of some of the controller devices matches the TAI in the tracking area identifier list (TAI List) of the UE, so the core network device determines the direction. These controller devices send query messages. It should be noted that the "match" mentioned here can be a controller device. At least one TAI in the tracking area identification information is the same as the TAI in the tracking area identification list (TAI List) of the UE.

Optionally, when the at least one controller device is a device independent of the base station, such as a controller (the device independent of the base station in the following embodiments takes the controller as an example), the core network device determines the at least one control. When the tracking area identification information of the device matches the TAI in the TAI List of the UE, the query message may be directly sent to the at least one controller device (ie, at least one Controller). Further, before the core network device sends the query message to the at least one controller, the core network device needs to establish a first communication interface with the controllers. The process of establishing the first communication interface may be triggered by a core network device, or may be triggered by a controller. The manner in which the core network device obtains the tracking area identifier information of the at least one controller device may include the following:

The first type: Referring to the steps shown in FIG. 8, the foregoing S201 specifically includes:

S301: The OAM configures the TAI of the Controller for the Controller.

S302: The controller establishes a first communication interface with the core network device, and sends the ID of the controller and the TAI of the controller to the core network device when the first communication interface is established.

Specifically, when the first communication interface is established, the controller may send a first communication interface setup request message to the core network device (step A), where the first communication interface setup request message carries the ID of the controller and the TAI of the controller. After receiving the first communication interface setup request message, the core network device sends a first communication interface setup response message to the controller (step B), and the first communication interface is successfully established. Referring to the first communication interface setup signaling shown in FIG. Flowchart one. The core network device may send a first communication interface setup request message to the controller (step A'), and after receiving the first communication interface setup request message, the controller carries the ID of the controller and the TAI of the controller in the first communication. The interface establishment response message is sent to the core network device (step B'), and the first communication interface is successfully established. Referring to the first communication interface shown in FIG. 10, the signaling flow chart 2 is established. That is, the tracking area identifier information of the controller in the implementation manner is the ID of the controller and the TAI of the controller, so that the core network device can determine whether the controller matches the TAI in the TAI List of the UE according to the ID and the TAI of the controller. Then, the controller sends a query message to the controller that matches the TAI in the TAI list of the TAI, and saves the interface resource between the Controller and the core network device.

The second type: Referring to the steps shown in FIG. 11, the foregoing S201 specifically includes:

S401: The Controller establishes a second communication interface with the second base station, and acquires an ID of the second base station and/or a TAI of the second base station when establishing the second communication interface.

Specifically, in this implementation manner, the tracking area identifier information of the controller may be an ID of the controller and an ID of the second base station that has a second communication interface with the controller, and may also be an ID of the controller and a TAI of the second base station, and may also be It is the ID of the Controller, the TAI of the second base station, and the ID of the second base station.

When the tracking area identifier information of the controller is the ID of the controller and the ID of the second base station, the core network device can learn the ID of the second base station and the TAI of the second base station by performing information interaction with the second base station, so that the core network When the device obtains the ID of the controller and the ID of the second base station, the core network device can learn which TAI the controller is associated with, and then the core network device checks whether the TAI List of the UE includes the TAI, and if so, the core network device. Make sure to send a query message to the Controller.

When the tracking area identifier information of the controller is the ID of the controller and the TAI of the second base station, after obtaining the tracking area identification information of the controller, the core network device can directly know which TAI the controller is associated with, and then the core network. The device then checks whether the TAI List of the UE includes the TAI, and if so, the core network device determines to send a query message to the Controller.

When the tracking area identifier information of the controller is the ID of the controller, the TAI of the second base station, and the ID of the second base station, after obtaining the tracking area identification information of the controller, the core network device may directly know which TAI the controller and the TAI. If there is an association, the core network device checks whether the TAI List of the UE includes the TAI, and if so, the core network device determines to send a query message to the controller.

The tracking area identification information of the different controllers is related to the information about the second base station. Therefore, the controller sends the ID of the controller and the ID of the second base station to the core network device, or the controller sends the ID to the core network. The device sends the ID of the Controller and the TAI of the second base station, or the controller needs to establish a second with the second base station before the controller sends the ID of the Controller, the TAI of the second base station, and the ID of the second base station to the core network device. And a second communication interface, and acquiring the ID of the second base station and/or the TAI of the second base station when establishing the second communication interface. When the second communication interface is established, it can be triggered by the Controller, or It is triggered by the second base station. When the second communication interface is triggered by the controller, the controller sends a second communication interface setup request message to the second base station (step C). Optionally, the second communication interface setup request message carries the ID of the controller. After receiving the second communication interface setup request message, the second base station sends a second communication interface setup response message to the controller (step D), where the second communication interface setup response message carries the ID of the second base station and/or the second The TAI of the base station and the second communication interface are successfully established. Referring to the second communication interface shown in FIG. 12, the signaling flow chart 1 is established. When the second communication interface is triggered by the second base station, the second base station sends a second communication interface setup request message to the controller (step C'), where the second communication interface setup request message carries the ID of the second base station. And/or the TAI of the second base station, after receiving the second communication interface setup request message, the controller sends a second communication interface setup response message to the second base station (step D'). Optionally, the second communication interface The establishment response message may carry the ID of the Controller, and the second communication interface is successfully established. Referring to the second communication interface shown in FIG. 13, the signaling flow chart 2 is established.

S402: The controller establishes a first communication interface with the core network device, and sends the ID of the controller and the ID of the second base station to the core network device when the first communication interface is established, or sends the ID of the controller and the second to the core network device. The TAI of the base station, or the ID of the Controller and the TAI of the second base station and the ID of the second base station are transmitted to the core network device.

Specifically, when the controller acquires the ID of the second base station and/or the TAI of the second base station, the Controller establishes a first communication interface with the core network device, and sets the obtained ID of the Controller when establishing the first communication interface. And, the ID of the second base station and/or the TAI of the second base station are sent to the core network device.

When the controller obtains the ID of the second base station from the process of establishing the second communication interface, the Controller sends the ID of the controller and the ID of the second base station to the core network device when establishing the first communication interface with the core network device. That is, the tracking area identification information of the Controller obtained by the core network device at this time is the ID of the Controller and the ID of the second base station; when the Controller obtains the TAI of the second base station from the process of establishing the second communication interface, the Controller is in the core When the network device establishes the first communication interface, the ID of the controller and the TAI of the second base station are sent to the core network device, that is, the tracking area identifier information of the Controller obtained by the core network device at this time is the ID of the controller and the second base station. TAI; when the Controller obtains the TAI of the second base station and the ID of the second base station from the process of establishing the second communication interface, the Controller is When the first communication interface is established with the core network device, the ID of the controller, the TAI of the second base station, and the ID of the second base station are sent to the core network device, that is, the tracking area identifier information of the Controller obtained by the core network device is the Controller. ID, TAI of the second base station, and ID of the second base station.

When the first communication interface is established between the controller and the core network device, the ID of the controller and the ID of the second base station and/or the TAI of the second base station are sent to the core network device (that is, the tracking area identifier information of the controller is sent to the controller). The core network device is optional. The controller may trigger the establishment of the first communication interface. Specifically, the controller sends a first communication interface setup request message to the core network device, where the first communication interface setup request message carries the tracking area of the controller. After the first network interface setup request message is received, the core network device sends a first communication interface setup response message to the controller, where the first communication interface setup response message can carry the ID of the core network device, and the first communication interface is established. success. Optionally, the core network device may trigger the establishment of the first communication interface, where the core network device sends a first communication interface setup request message to the controller, where the first communication interface setup request message may carry the ID of the core network device. After receiving the first communication interface setup request message, the controller carries the tracking area identifier information of the controller in the first communication interface setup response message and sends the information to the core network device.

The third type: Referring to the steps shown in FIG. 14, the foregoing S201 specifically includes:

S501: The Controller establishes a second communication interface with the second base station, and sends the ID of the Controller to the second base station when the second communication interface is established.

Specifically, in the implementation manner, the core network device may obtain the tracking area identifier information of the controller from the process of establishing the third communication interface with the second base station, where the tracking area identifier information of the controller may be the ID of the second base station, and the second The TAI of the base station and the ID of the Controller. Therefore, the Controller needs to establish a second communication interface with the second base station in advance, and send the ID of the Controller to the second base station in the process of establishing the second communication interface.

The establishment of the second communication interface may be triggered by the controller or triggered by the second base station. When the controller triggers the establishment of the second communication interface, the controller sends a second communication interface setup request message to the second base station, where the second communication interface setup request message carries the ID of the controller, and the second base station receives the second communication interface. After the communication interface establishes the request message, the second communication interface setup response message is sent to the controller, and the second communication interface is successfully established. When the second base station triggers the establishment of the second communication interface, specifically: the second base station sends a message to the controller. Sending a second communication interface setup request message, after receiving the second communication interface setup request message, the controller sends a second communication interface setup response message to the second base station, where the second communication interface setup response message can carry the ID of the controller The second communication interface is successfully established.

S502: The second base station establishes a third communication interface with the core network device, and when establishing the third communication interface, sends the ID of the second base station, the TAI of the second base station, and the ID of the Controller to the core network device.

Specifically, after the second base station obtains the ID of the controller, the second base station establishes a third communication interface with the core network device, and when establishing the third communication interface, the ID of the second base station, the TAI of the second base station, and the foregoing Controller The ID is sent to the core network device. The establishment of the third communication interface may be triggered by the second base station or triggered by the core network device. When the second base station triggers the establishment of the third communication interface, the second base station sends a third communication interface setup request message to the core network device (step E), where the third communication interface setup request message carries the second base station. ID, the TAI of the second base station, and the ID of the controller, after receiving the third communication interface setup request message, the core network device sends a third communication interface setup response message to the second base station (step F), and the third communication interface is established. For success, see Figure 3 for the third communication interface shown in Figure 15. When the core network device triggers the establishment of the third communication interface, specifically: the core network device sends a third communication interface setup request message to the second base station (step E'), and the second base station receives the third communication interface setup request message. Then, sending a third communication interface setup response message to the core network device (step F'), where the third communication interface setup response message carries the ID of the second base station, the TAI of the second base station, and the ID of the controller, and the third communication The interface is successfully established. See Figure 3 for the third communication interface shown in Figure 16.

The above three implementation manners are related to the fact that when the at least one controller device is a controller (ie, a device independent of the base station), the core network device establishes a first communication interface with the controller, and the controller establishes a second communication with the second base station. The specific process of obtaining the third communication interface between the interface and the core network device and the second base station, and acquiring the tracking area identification information of the controller.

Optionally, when the at least one controller device is a base station, the tracking area identifier information of the controller device may include a TAI of the base station, where the core network device determines the tracking area identifier information of the base station and the TAI List of the UE. When the TAI matches, the core network device also needs to determine whether the base station has a controller function, and when the core network device determines the tracking area identification information of the base station and the UE When the TAI in the TAI List matches and the base station is a base station having a controller function, the core network device determines to send an inquiry message to the base station to save interface resources between the core network device and the base station. That is to say, the above S202 can be specifically referred to the steps shown in FIG. 17, which specifically includes:

S601: The base station sends the first indication information to the core network device.

S602: The core network device receives the first indication information, and determines, according to the first indication information, that the base station has a controller function.

Optionally, the first indication information may be carried in the third interface setup request message between the core network device and the base station. When the core network device is the MME, the first indication information may be carried in the S1 interface setup request message. When the core network device is an SGSN or an MSC, the first indication information may be carried in the Iu interface setup request message.

S603: The core network device further determines whether the tracking area identifier information of the base station with the controller function matches the TAI in the TAI List of the UE to be paged. If yes, execute S604.

S604: The core network device sends the query message to the base station with the controller function.

S605: The core network device does not send a query message to the base station having the controller function.

Specifically, when the core network device determines that the base station has a controller function, and the tracking area identifier information also matches the TAI in the TAI List of the UE to be paged, the core network device determines to send a query message to the base station, thereby greatly The interface resources between the core network device and the base station are saved.

The communication method provided by the embodiment of the present invention, the tracking area identification information of the at least one controller device is exchanged between the core network device and the at least one controller device, so that the core network device can determine to the at least one controller according to the tracking area identification information. The device sends the query message, so that it is unnecessary to send the query message to all the controller devices, which greatly saves the interface resources between the core network device and the controller device, and further improves the paging efficiency.

FIG. 18 is a schematic flowchart diagram of Embodiment 4 of a communication method according to an embodiment of the present disclosure. The at least one controller device and the first controller device in this embodiment are both devices having a first communication interface with the core network device and independent of the base station. Optionally, the device independent of the base station may be the foregoing multiplexed device. A Controller that is set independently of the base station in the network architecture. In this embodiment, the devices that are independent of the base station take the Controller as an example. In this embodiment, the core network device sends a paging message directly to the first base station associated with the first controller device after receiving the acknowledgement message sent by the first controller device. Controller device sends paging And the specific process of enabling the UE to access the core network device by the paging process initiated by the first controller device. On the basis of the foregoing embodiment, further, before the foregoing S101 or before the core network device sends the paging message to the first base station that is associated with the first controller device, as shown in FIG. 18, the method may further include:

S701: The core network device determines the first mapping relationship.

Specifically, the first mapping relationship may include: a correspondence between a Controller (ie, a first controller device) and a second base station having a second communication interface with the Controller, or may include the Controller and the Controller The correspondence between the third base stations of the same TAI, the first base station may be the second base station or the third base station. The correspondence between the Controller and the second base station includes the ID of the second base station corresponding to the Controller, and the correspondence between the Controller and the third base station includes the TAI of the third base station.

S702: The core network device determines, according to the first mapping relationship, that a paging message is sent to the first base station that is associated with the controller.

Specifically, after the core network device determines the first mapping relationship, when the core network device receives the acknowledgment message sent by the controller, that is, the first controller device, the core network device may The first base station associated with the controller sends a paging message, and does not need to send a paging message to all the base stations involved in the TAI List of the UE, that is, there is no need to page the UE on all the base stations, thereby greatly saving air interface resources.

Further, the specific process of the first mapping device is determined by the foregoing core network device. For details, refer to the following two implementation modes:

The first type: the core network device obtains the first mapping relationship by interacting with the controller. For details, refer to the steps in Figure 19:

S801: The controller establishes a second communication interface with the second base station, and determines a correspondence between the controller and the second base station when the second communication interface is established, where the correspondence relationship includes the first The ID of the second base station.

Specifically, the controller establishes a second communication interface with the second base station, which may be triggered by the controller, or may be triggered by the second base station. For the specific establishment process of the second communication interface, refer to the foregoing embodiment, and details are not described herein. When the second communication interface is triggered, the ID of the second base station corresponding to the controller may be carried in the second communication interface setup request message, and when the second base station triggers the establishment of the second communication interface, the ID of the second base station Can be carried in the first The second communication interface is established in the response message. In this way, the Controller can know which of the second base station IDs it corresponds to.

S802: The controller establishes a first communication interface with the core network device, and sends the correspondence to the core network device when the first communication interface is established.

Specifically, the controller establishes a first communication interface with the core network device, which may be triggered by the controller, or may be triggered by the core network device. For the specific establishment process of the first communication interface, refer to the foregoing embodiment, and details are not described herein. When the first communication interface is triggered, the ID of the second base station corresponding to the controller may be carried in the first communication interface setup request message. When the core network device triggers the establishment of the first communication interface, the controller corresponds to the The ID of the second base station may be carried in the first communication interface setup response message. In summary, the core network device obtains the correspondence between the Controller and the second base station, that is, obtains the ID of the second base station corresponding to the Controller. For the scenario shown in FIG. 4, there may be multiple second base stations corresponding to the controller, that is, the ID of the second base station that interacts during the establishment of the second communication interface may be multiple.

The second type: the core network device obtains the first mapping relationship by interacting with the second base station. For details, refer to the steps in Figure 20:

S901: The second base station establishes a second communication interface with the controller, and determines a correspondence between the second base station and the controller in the process of establishing the second communication interface, where the correspondence includes the ID of the controller corresponding to the second base station.

Specifically, the second base station establishes a second communication interface with the controller, which may be triggered by the controller, or may be triggered by the second base station. For the specific establishment process of the second communication interface, refer to the foregoing embodiment, and details are not described herein. When the second communication interface is triggered, the ID of the controller may be carried in the second communication interface setup request message. When the second base station triggers the establishment of the second communication interface, the ID of the controller may be carried in the second communication interface to establish a response. In the message. In this way, the second base station can know which IDs of the controllers the second base station corresponds to.

S902: The core network device establishes a third communication interface with the second base station, and determines a correspondence between the second base station and the controller when the third communication interface is established, where the correspondence between the second base station and the controller includes The ID of the controller corresponding to the second base station.

Specifically, the core network device and the second base station establish a third communication interface, which may be triggered by the second base station, or may be triggered by the core network device, and the specific establishment process of the third communication interface may be referred to In the embodiment, it is not described here that when the second base station triggers the establishment of the third communication interface, the ID of the controller corresponding to the second base station may be carried in the first communication interface setup request message, and is triggered by the core network device. When the third communication interface is established, the ID of the controller corresponding to the second base station may be carried in the third communication interface setup response message. In summary, the core network device obtains the correspondence between the Controller and the second base station, that is, obtains the ID of the Controller corresponding to the second base station. Optionally, for the scenario in which the hyper cell is in the cell range of the second base station, the number of the controllers corresponding to the second base station may be multiple, that is, the ID of the Controller that interacts in the third interface establishment process may be multiple.

Optionally, the foregoing core network device may also obtain a first mapping relationship by interacting with the controller and interacting with the core network device and the second base station, so that the obtained first mapping relationship is more accurate, and the specific process may be as follows. The specific process of FIG. 19 and FIG. 20 is not described here. The correspondence between the obtained base station-independent device (Controller) and the second base station includes: the ID of the controller corresponding to the second base station, Or the ID of the second base station corresponding to the Controller.

According to the communication method provided by the embodiment of the present invention, after receiving the confirmation message of the controller, the core network device may accurately locate the second base station where the UE is located according to the first mapping relationship between the controller and the second base station, and The second base station sends a paging message to page the UE, so that there is no need to send a paging message to all base stations involved in the TAI List of the UE, that is, there is no need to page the UE on all the base stations, thereby greatly saving air interface resources and improving Air interface utilization and paging efficiency.

FIG. 21 is a signaling flowchart of Embodiment 5 of a communication method according to an embodiment of the present invention. In this embodiment, the at least one controller device and the first controller device are both devices independent of the base station. Optionally, the device independent of the base station may be a controller independently configured with the base station in the foregoing multiplexed network architecture. . In this embodiment, the devices that are independent of the base station take the Controller as an example. The present embodiment relates to a specific process in which the Controller directly instructs the UE to access the core network device after the Controller sends the acknowledgment message to the core network device, when the controller determines that the UE is located in the coverage cell of the UE. In this embodiment, the core network device does not need to send any paging message, which further saves air interface resources. On the basis of the foregoing embodiment, further, after the foregoing S105, as shown in FIG. 21, the method may further include:

S1001: The controller sends the second indication information to the UE, where the second indication information is used to indicate that the UE accesses the core network device.

Specifically, when the controller determines that the UE is located in the cell coverage area of the self, the controller sends an acknowledgment message to the core network device, but different from the foregoing embodiment, after the core network device receives the acknowledgment message sent by the controller in this embodiment, The core network device stops paging and ends the process, but the controller directly sends the second indication information to the UE. At this time, the controller has accurately learned which TP coverage the UE is located to indicate that the UE selects a suitable cell. Enter the core network device.

S1002: The UE receives the second indication information, and accesses the core network device according to the second indication information.

In the communication method provided by the embodiment of the present invention, when the controller determines that the UE is located in the cell coverage area, the controller sends the second indication information to the UE, and then the UE can send the second indication information according to the second indication information. The access to the core network device eliminates the need for the core network device or the base station to send any paging message, which saves air interface resources and greatly improves paging efficiency and air interface resource utilization.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

FIG. 22 is a schematic structural diagram of Embodiment 1 of a core network device according to an embodiment of the present disclosure. As shown in FIG. 22, the core network device may include: a sending module 10 and a receiving module 11.

The sending module 10 is configured to send a query message to the at least one controller device, where the query message carries an identifier of the user equipment UE, where the query message is used to indicate that the controller device determines, according to the identifier of the UE, whether the UE is located. Within the cell range covered by the controller device;

The receiving module 11 is configured to receive an acknowledgment message sent by the first controller, where the acknowledgment message is used to indicate that the UE is located in a cell range covered by the first controller device, where the first controller device Belong to the at least one controller device.

The sending module 10 may correspond to a transmitter or a transmitting antenna of the core network device, and the foregoing The receiving module 11 may correspond to a receiver or a receiving antenna of the core network device. Optionally, the sending module 10 and the receiving module 11 may be integrated in a transceiver or a transceiver of the core network device.

The core network device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.

Further, referring to FIG. 22, the sending module 10 is further configured to send a paging message to the first controller device or the first base station associated with the first controller device, where the paging message carries the The identifier of the UE, where the paging message is used to indicate that the first controller device or the first base station associated with the first controller device initiates a paging process.

FIG. 23 is a schematic structural diagram of Embodiment 2 of a core network device according to an embodiment of the present invention. On the basis of the foregoing embodiment shown in FIG. 22, the core network device further includes a determining module 12,

The receiving module 11 is configured to acquire tracking area identification information of the at least one controller device before the sending module 10 sends the query message to the at least one controller device;

The determining module 12 is configured to: when the tracking area identifier information of the at least one controller device matches the tracking area identifier TAI in the tracking area identifier list of the UE, determine to send the query to the at least one controller device Message.

Optionally, when the at least one controller device is a base station, the receiving module 11 is further configured to: before the determining module 12 determines to send the query message to the at least one controller device, The first indication information sent by the base station, where the first indication information is used to indicate to the core network device that the base station has a controller function.

Optionally, when the at least one controller device is a device independent of the base station, the core network device further includes: a first interface establishing module 13 on the basis of the embodiment shown in FIG. For details, refer to the structural diagram of Embodiment 3 of the core network device shown in FIG. The first interface establishing module 13 is configured to establish a first communication interface with each of the controller devices before the sending module 10 sends the query message to the at least one controller device.

The receiving module 11 may include a first receiving unit 111, or a second receiving unit 112, or a third receiving unit 113, or a fourth receiving unit 114, or a fifth receiving unit 115;

The first receiving unit 111 is configured to acquire the identifier ID of the controller device and the TAI of the controller device when the first interface establishing module 13 and the controller device establish the first communication interface;

or.

a second receiving unit 112, configured to acquire an ID of the controller device and a second device with the controller device when the first interface establishing module 13 and the controller device establish the first communication interface The ID of the second base station of the communication interface;

or,

a third receiving unit 113, configured to acquire an ID of the controller device and a second device with the controller device when the first interface establishing module 13 and the controller device establish the first communication interface a TAI of the second base station of the communication interface;

or,

a fourth receiving unit 114, configured to acquire an ID of the controller device and a second device with the controller device when the first interface establishing module 13 and the controller device establish the first communication interface a TAI of the second base station of the communication interface and an ID of the second base station;

or,

The fifth receiving unit 115 is configured to acquire an ID and a location of the second base station when the first interface establishing module 13 and the second base station that has the second communication interface with the controller device establish a third communication interface. Determining a TAI of the second base station and an ID of a controller device having a second communication interface with the second base station.

FIG. 25 is a schematic structural diagram of Embodiment 4 of a core network device according to an embodiment of the present disclosure. On the basis of the foregoing embodiments, when the at least one controller device is a device that has a first communication interface with the core network device and is independent of the base station, the core network device further includes:

The second interface establishing module 14 is configured to determine a first mapping relationship before the sending module 10 sends a paging message to the first base station that is associated with the first controller device, where the first mapping relationship includes: Correspondence between the controller device and a second base station having a second communication interface with the controller device, or a correspondence between the controller device and a third base station identical to the TAI of the controller device Relationship, the first base station includes the second base station and the third base station.

Optionally, the second interface establishing module 14 is specifically configured to establish a first communication interface with the controller device, and determine the controller device and the second base station when establishing the first communication interface. Corresponding relationship between the controller device and the second base station includes an ID of the second base station corresponding to the controller device.

Optionally, the second interface establishing module 14 is specifically configured to establish a third communication interface with the second base station, and determine the controller device and the second base station when establishing the third communication interface. Corresponding relationship between the controller device and the second base station includes an ID of the unique controller device corresponding to the second base station.

Optionally, the second interface establishing module 14 is configured to establish a first communication interface with the controller device, and determine the controller device and the second when establishing the first communication interface. Corresponding relationship between the base stations; and establishing a third communication interface with the second base station, and determining a correspondence between the controller device and the second base station when establishing the third communication interface;

FIG. 26 is a schematic structural diagram of Embodiment 1 of a controller device according to an embodiment of the present disclosure. As shown in FIG. 26, the controller device includes a receiving module 20, a determining module 21, and a transmitting module 22.

The receiving module 20 is configured to receive a query message sent by the core network device, where the query message carries an identifier of the user equipment UE;

a determining module 21, configured to determine, according to the query message, whether the UE is located in a cell coverage area covered by the controller device;

The sending module 22 is configured to send an acknowledgement message to the core network device when the determining module 21 determines that the UE is located in a cell range covered by the controller device.

The foregoing sending module 22 may correspond to a transmitter or a transmitting antenna of the core network device, and the receiving module 20 may correspond to a receiver or a receiving antenna of the core network device. Optionally, the sending module 22 and the receiving module 20 may be integrated in the core. In the transceiver of the network device.

The controller device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.

Optionally, the receiving module 20 is further configured to: after the sending module 22 sends an acknowledgement message to the core network device, receive a paging message sent by the core network device, where the paging message carries The identifier of the UE;

The sending module 22 is further configured to initiate a paging process according to the paging message.

Optionally, when the controller device is a base station having a controller function, the sending module 22 is further configured to: before the receiving module 20 receives the query message sent by the core network device, to the core network device. Sending first indication information, where the first indication information is used to indicate to the core network device that the base station has a controller function.

Optionally, when the controller device is a device independent of the base station, the second embodiment of the controller device shown in FIG. 27 is based on the foregoing embodiment shown in FIG. 26, as shown in FIG. The controller device may further include: a first interface establishing module 23, configured to establish a first communication interface with the core network device before the receiving module 20 receives the query message sent by the core network device. With reference to FIG. 27, the foregoing sending module 22 may include a first sending unit 221, or a second sending unit 222, or a third sending unit 223, or a fourth sending unit 224, specifically:

The first sending unit 221 is configured to: when the first interface establishing module 23 establishes the first communication interface with the core network device, send the identifier ID of the controller device to the core network device, and the TAI of the controller device;

or,

The second sending unit 222 is configured to: when the first interface establishing module 23 establishes the first communication interface with the core network device, send the ID of the controller device to the core network device, and the The controller device has an ID of the second base station of the second communication interface;

or,

The third sending unit 223 is configured to: when the first interface establishing module 23 establishes the first communication interface with the core network device, send the ID of the controller device to the core network device, and the The controller device has a TAI of the second base station of the second communication interface;

or,

The fourth sending unit 224 is configured to: when the first interface establishing module 23 establishes the first communication interface with the core network device, send the ID of the controller device to the core network device, and the The controller device has a TAI of the second base station of the second communication interface and an ID of the second base station;

Further, the controller device may further include: a second interface establishing module 24;

The second interface establishing module 24 is configured to send, by the second sending unit 222, the ID of the controller device to the core network device and the second device that has a second communication interface with the controller device. The ID of the base station, or the third transmitting unit 223 transmits the ID of the controller device to the core network device and the TAI of the second base station having the second communication interface with the controller device, or The fourth sending unit 224 sends the ID of the controller device to the core network device, before the TAI of the second base station with the second communication interface of the controller device, and the ID of the second base station, and Establishing, by the second base station, a second communication interface, and acquiring an ID of the second base station and/or a TAI of the second base station when establishing the second communication interface; or establishing the second communication interface And indicating, to the second base station, an ID of the controller device.

Optionally, the sending module 22 is further configured to: when the determining module 21 determines that the UE is not located in a cell range covered by the controller device, send a negative message to the core network device.

Optionally, on the basis of the foregoing embodiment, when the controller device is a device independent of the base station, the second interface establishing module 24 is configured to establish a second communication interface with the second base station, and Determining, by the second communication interface, a correspondence between the controller device and the second base station, where the correspondence includes an ID of the second base station corresponding to the controller device; the first interface establishing module 23, And configured to establish a first communication interface with the core network device, and send the corresponding relationship to the core network device when the first communication interface is established.

Optionally, on the basis of the foregoing embodiment, when the controller device is a device independent of the base station, the sending module 22 is further configured to send, after sending the acknowledgement message to the core network device, the UE The second indication information is used to indicate that the UE accesses the core network device.

Embodiment 5 of the present invention provides a core network device. The core network device can include a transceiver 30. The transceiver 30 may include a separate transmitter and a separate receiver, or may be integrated with the transmitter and the receiver. The transceiver 30 can operate under the instruction of the corresponding processing chip, and can also work in real time according to its own function. Alternatively, the transceiver 30 can correspond to a transceiver or a transceiver antenna in the core network device.

Specifically, the transceiver 30 is configured to send a query message to at least one controller device, and receive a confirmation message sent by the first controller device;

Further, the transceiver 30 is further configured to send a paging message to the first controller device or the first base station associated with the first controller device, where the paging message carries the identifier of the UE, where The paging message is used to indicate that the first controller device or the first base station associated with the first controller device initiates a paging process.

On the basis of the foregoing embodiment, a schematic structural diagram of the sixth embodiment of the core network device shown in FIG. 28, in this embodiment, the core network device includes a processor 31 in addition to the transceiver 30. In this embodiment, the transceiver 30 is further configured to acquire tracking area identification information of the at least one controller device before sending the query message to the at least one controller device.

The processor 31 is configured to: when the tracking area identifier information of the at least one controller device matches the tracking area identifier TAI in the tracking area identifier list of the UE, determine to send the query message to the at least one controller device .

Optionally, when the at least one controller device is a base station, the transceiver 30 is further configured to receive the base station before the processor 31 determines to send the query message to the at least one controller device. The first indication information that is sent, where the first indication information is used to indicate to the core network device that the base station has a controller function.

Optionally, when the at least one controller device is a device independent of the base station, the transceiver 30 is further configured to establish, with each of the controller devices, before sending the query message to the at least one controller device. A communication interface. In the possible implementation, the transceiver 30 obtains the tracking area identifier information of the at least one controller device, which may be specifically:

The transceiver 30 is specifically configured to acquire the identifier ID of the controller device and the TAI of the controller device when the first communication interface is established with the controller device;

or,

The transceiver 30 is specifically configured to establish the first communication interface with the controller device. Obtaining an ID of the controller device and an ID of a second base station having a second communication interface with the controller device;

or,

The transceiver 30, specifically for establishing the first communication interface with the controller device, acquiring an ID of the controller device and a TAI of a second base station having a second communication interface with the controller device;

or,

The transceiver 30 is configured to acquire, when the first communication interface is established with the controller device, an ID of the controller device, a TAI of a second base station that has a second communication interface with the controller device, and The ID of the second base station;

or,

The transceiver 30 is configured to acquire an ID of the second base station, a TAI and a location of the second base station, when establishing a third communication interface with a second base station that has a second communication interface with the controller device. The second base station has an ID of a controller device of the second communication interface.

Optionally, when the at least one controller device is a device that has a first communication interface with the core network device and is independent of the base station, the processor 31 is further configured to: at the transceiver 30 Before the first base station associated with the controller device sends the paging message, determining a first mapping relationship, where the first mapping relationship includes: the controller device and a second base station having a second communication interface with the controller device Corresponding relationship between the controller device and a third base station that is the same as the TAI of the controller device, the first base station includes the second base station and the third base station .

In a possible implementation, the processor 31 is specifically configured to determine, when the transceiver 30 establishes the first communication interface with the controller device, the controller device and the Corresponding relationship between the second base station, the correspondence between the controller device and the second base station includes an ID of the second base station corresponding to the controller device.

Optionally, the processor 31 is configured to determine a correspondence between the controller device and the second base station when the transceiver 30 establishes a third communication interface with the second base station, where Corresponding relationship between the controller device and the second base station includes a location corresponding to the second base station The ID of the controller device.

Optionally, the processor 31 is specifically configured to determine a correspondence between the controller device and the second base station when the transceiver 30 establishes a first communication interface with the controller device, and Determining, when the transceiver 30 establishes a third communication interface with the second base station, a correspondence between the controller device and the second base station;

FIG. 29 is a schematic structural diagram of Embodiment 3 of a controller device according to an embodiment of the present disclosure. The controller device can include a transceiver 40 and a processor 41. The transceiver 40 may include a separate transmitter and a separate receiver, or may be integrated with the transmitter and the receiver. The transceiver 40 can operate under the instruction of the corresponding processor 41, and can also work in real time according to its own function. Alternatively, the transceiver 40 can correspond to a transceiver or a transceiver antenna in the controller device.

As shown in FIG. 29, the transceiver 40 is configured to receive a query message sent by the core network device, where the query message carries the identifier of the user equipment UE.

The processor 41 is configured to determine, according to the query message, whether the UE is located in a cell range covered by the controller device;

The transceiver 40 is further configured to send an acknowledgement message to the core network device when the processor 41 determines that the UE is located in a cell range covered by the controller device.

For the implementation of the controller device provided by the embodiment of the present invention, refer to the detailed description of the foregoing method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.

Further, the transceiver 40 is further configured to: after sending an acknowledgement message to the core network device, receive a paging message sent by the core network device, and initiate a paging process according to the paging message; The paging message carries the identifier of the UE.

Further, the transceiver 40 is further configured to send tracking area identification information to the core network device before receiving the query message sent by the core network device.

Optionally, when the controller device is a base station having a controller function, the transceiver 40 is further configured to send the first message to the core network device before receiving the query message sent by the core network device. Instructing information, the first indication information is used to indicate to the core network device that the base station has a controller function.

Optionally, when the controller device is a device independent of the base station, the transceiver 40 is further configured to establish a first communication interface with the core network device before receiving the query message sent by the core network device. In a possible implementation, the transceiver 40 is configured to: when the first communication interface is established with the core network device, send the identifier ID of the controller device to the core network device, and TAI of the controller device;

or,

The transceiver 40 is configured to: when the first communication interface is established with the core network device, send an ID of the controller device to the core network device and a second communication interface with the controller device The ID of the second base station;

or,

The transceiver 40 is configured to: when the first communication interface is established with the core network device, send an ID of the controller device to the core network device and a second communication interface with the controller device The TAI of the second base station;

or,

The transceiver 40 is configured to: when the first communication interface is established with the core network device, send the ID of the controller device to the core network device, and have a second communication interface with the controller device. The TAI of the second base station and the ID of the second base station.

In a possible implementation, the transceiver 40 is further configured to send, by the core network device, an ID of the controller device and a second communication interface with the controller device. The ID of the base station, or the ID of the controller device sent to the core network device and the TAI of the second base station having the second communication interface with the controller device, or sent to the core network device Establishing a second communication interface with the second base station, and establishing the ID of the controller device, the TAI of the second base station having the second communication interface, and the ID of the second base station Obtaining, by the second communication interface, an ID of the second base station and/or a TAI of the second base station; or, when establishing the second communication interface, indicating the controller device to the second base station ID.

Optionally, the transceiver 40 is further configured to send a negative message to the core network device when the processor 41 determines that the UE is not located within a cell coverage by the controller device.

Optionally, on the basis of the foregoing embodiment, when the controller device is a device independent of the base station, the transceiver 40 is further configured to: before receiving the query message sent by the core network device, with the second base station Establishing a second communication interface, and determining a correspondence between the controller device and the second base station when establishing the second communication interface, and establishing a first communication interface with the core network device, and establishing the The first communication interface sends the corresponding relationship to the core network device; the corresponding relationship includes an ID of the second base station corresponding to the controller device.

Optionally, on the basis of the foregoing embodiment, when the controller device is a device independent of the base station, the transceiver 40 is further configured to: after sending an acknowledgement message to the core network device, to the The UE sends the second indication information, where the second indication information is used to indicate that the UE accesses the core network device.

The embodiment of the invention further provides a communication system, which can include a core network device and a controller device. among them,

The core network device is configured to send an inquiry message to the at least one controller device, and receive an acknowledgement message sent by the first controller device, where the query message carries an identifier of the user equipment UE, where the query message is used. Instructing the controller device to determine, according to the identifier of the UE, whether the UE is located in a cell range covered by the controller device, and the acknowledge message is used to indicate that the UE is located in a cell coverage area covered by the first controller device The first controller device belongs to the at least one controller device.

The controller device is configured to receive a query message sent by the core network device, and determine, according to the query message, whether the UE is located in a cell range covered by the controller device, and when the controller device determines the UE An acknowledgment message is sent to the core network device when it is located within a cell range covered by the controller device.

Further, the core network device is further configured to send a paging message to the first controller device or the first base station that is associated with the first controller device, where the paging message carries the identifier of the UE, where The paging message is used to indicate that the first controller device or the first base station associated with the first controller device initiates a paging process;

The controller device is further configured to: after sending an acknowledgement message to the core network device, receive a paging message sent by the core network device.

Optionally, the core network device is further configured to acquire, after sending the query message to the at least one controller device, the tracking area identifier information of the at least one controller device, and the tracking area identifier of the at least one controller device When the information matches the tracking area identifier TAI in the tracking area identifier list of the UE, determining to send the query message to the at least one controller device;

The controller device is further configured to send tracking area identification information to the core network device before receiving the query message sent by the core network device.

Optionally, when the at least one controller device is a base station, the core network device is further configured to receive, before sending the query message to the at least one controller device, the first sent by the base station. Instructing information, the first indication information is used to indicate to the core network device that the base station has a controller function;

The controller device is further configured to send the first indication information to the core network device before receiving the query message sent by the core network device.

Optionally, when the at least one controller device is a device independent of the base station, the core network device is further configured to establish, with each of the controller devices, before sending the query message to the at least one controller device. First communication interface;

The core network device is further configured to obtain tracking area identification information of the at least one controller device, specifically:

The core network device is specifically configured to acquire the identifier ID of the controller device and the TAI of the controller device when the first communication interface is established with the controller device;

or,

The core network device is specifically configured to acquire an ID of the controller device and an ID of a second base station that has a second communication interface with the controller device when the first communication interface is established with the controller device. ;

or,

The core network device is specifically configured to acquire, when the first communication interface is established with the controller device, an ID of the controller device and a TAI of a second base station that has a second communication interface with the controller device. ;

Or,

The core network device is specifically configured to acquire, when the first communication interface is established with the controller device, an ID of the controller device, and a TAI of a second base station that has a second communication interface with the controller device. And an ID of the second base station;

or,

The core network device is configured to acquire, when the third communication interface is established with the second base station that has the second communication interface with the controller device, the ID of the second base station, and the TAI and the second base station. The second base station has an ID of a controller device of the second communication interface;

In this possible implementation, the controller device is further configured to establish a first communication interface with the core network device, and further, the controller device is further configured to send a tracking area identifier to the core network device. Information, specifically:

The controller device is specifically configured to: when the first communication interface is established with the core network device, send the identifier ID of the controller device and the TAI of the controller device to the core network device;

or,

The controller device is specifically configured to: when the first communication interface is established with the core network device, send an ID of the controller device to the core network device and a second communication interface with the controller device The ID of the second base station;

or,

The controller device is specifically configured to: when the first communication interface is established with the core network device, send an ID of the controller device to the core network device and a second communication interface with the controller device The TAI of the second base station;

or,

The controller device is configured to: when the first communication interface is established with the core network device, send an ID of the controller device to the core network device, and a second communication interface exists with the controller device The TAI of the second base station and the ID of the second base station;

In this possible implementation, optionally, the controller device is further configured to send, by the core network device, an ID of the controller device and a second communication interface with the controller device. The ID of the base station, or sending the ID of the controller device to the core network device and the TAI of the second base station having the second communication interface with the controller device, or transmitting the same to the core network device Establishing a second communication interface with the second base station before the ID of the controller device, the TAI of the second base station having the second communication interface of the controller device, and the ID of the second base station, And acquiring, when the second communication interface is established, an ID of the second base station and/or a TAI of the second base station; or, when establishing the second communication interface, indicating, to the second base station, the The ID of the controller device.

Optionally, when the at least one controller device is a device that has a first communication interface with the core network device and is independent of the base station, the core network device is further configured to be used by the first controller device. Before the associated first base station sends the paging message, determining a first mapping relationship, where the first mapping relationship includes: a correspondence between the controller device and a second base station having a second communication interface with the controller device a relationship, or a correspondence between the controller device and a third base station that is identical to a TAI of the controller device, the first base station comprising the second base station and the third base station.

Further, the core network device is further configured to determine the first mapping relationship, specifically:

The core network device is specifically configured to establish a first communication interface with the controller device, and determine a correspondence between the controller device and the second base station when establishing the first communication interface, and Establishing a third communication interface with the second base station, and determining a correspondence between the controller device and the second base station when establishing the third communication interface;

Optionally, the controller device is further configured to send a negative message to the core network device when determining that the UE is not located within a cell coverage area of the controller device.

Optionally, when the controller device is a device independent of the base station, the controller device is further configured to establish a second communication interface with the second base station before receiving the query message sent by the core network device, and Determining a correspondence between the controller device and the second base station, and establishing a first communication interface with the core network device, and setting the correspondence relationship when the first communication interface is established Sending to the core network device; the corresponding relationship includes an ID of the second base station corresponding to the controller device;

Optionally, when the controller device is a device that is independent of the base station, the controller device is further configured to send, after sending the acknowledgement message to the core network device, second indication information, where the The second indication information is used to indicate that the UE accesses the core network device.

The communication system provided by the embodiment of the present invention can perform the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.

It will be apparent to those skilled in the art that various embodiments of the present invention may be referred to each other. For the convenience and brevity of the description, the device described above, the specific working process of the module or unit in the device, and the working process of the communication system including the device described above may be referred to the corresponding process description in the foregoing method embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a A computer device (which may be a personal computer, server, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a removable hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners without departing from the scope of the present application. For example, the base station embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. The units described as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. . Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

In addition, the described systems, devices, and methods, and the schematic diagrams of various embodiments, may be combined or integrated with other systems, modules, techniques or methods without departing from the scope of the present application. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, base station or unit, and may be in electronic, mechanical or other form.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments can still be modified. Equivalent replacement of some or all of the technical features may be made without departing from the scope of the technical solutions of the embodiments of the present invention.

Claims

A communication method, comprising:

The core network device sends an inquiry message to the at least one controller device, where the query message carries an identifier of the user equipment UE, where the query message is used to indicate that the controller device determines, according to the identifier of the UE, whether the UE is located in the control. Within the cell coverage covered by the device;

The core network device receives an acknowledgment message sent by the first controller device, where the acknowledgment message is used to indicate that the UE is located in a cell range covered by the first controller device, where the first controller device belongs to The at least one controller device.
The method of claim 1 further comprising:

The core network device sends a paging message to the first controller device or the first base station associated with the first controller device, where the paging message carries an identifier of the UE, and the paging message is used to indicate The first controller device or the first base station associated with the first controller device initiates a paging process.
The method according to claim 1 or 2, wherein before the sending, by the core network device, the query message to the at least one controller device, the method further includes:

Obtaining, by the core network device, tracking area identification information of the at least one controller device;

When the core network device determines that the tracking area identification information of the at least one controller device matches the tracking area identifier TAI in the tracking area identification list of the UE, the core network device determines to send to the at least one controller device The query message.
The method according to claim 3, wherein the at least one controller device is a base station, and the core network device determines a tracking area identification information of the at least one controller device and a tracking area identification list of the UE. The method further includes: before the core network device determines to send the query message to the at least one controller device, the method further includes:

The core network device receives the first indication information sent by the base station, where the first indication information is used to indicate to the core network device that the base station has a controller function.
The method according to claim 3, wherein the at least one controller device is a device independent of the base station, and before the core network device sends the query message to the at least one controller device, the method further includes:

The core network device establishes a first communication interface with each of the controller devices.
The method according to claim 5, wherein the acquiring, by the core network device, the tracking area identification information of the at least one controller device comprises:

When the core network device and the controller device establish the first communication interface, the core network device acquires the identifier ID of the controller device and the TAI of the controller device;

or,

When the core network device establishes the first communication interface with the controller device, the core network device acquires an ID of the controller device and a second base station that has a second communication interface with the controller device. ID;

or,

When the core network device establishes the first communication interface with the controller device, the core network device acquires an ID of the controller device and a second base station that has a second communication interface with the controller device. TAI;

or,

When the core network device establishes the first communication interface with the controller device, the core network device acquires an ID of the controller device, and a second base station that has a second communication interface with the controller device. TAI and an ID of the second base station;

or,

When the core network device and the second base station having the second communication interface of the controller device establish a third communication interface, the core network device acquires an ID of the second base station, a TAI of the second base station, and An ID of a controller device having a second communication interface with the second base station.
The method according to claim 2, wherein the at least one controller device is a device having a first communication interface with the core network device and independent of a base station, and the core network device is directed to the first Before the first base station associated with the controller device sends the paging message, the method further includes:

Determining, by the core network device, a first mapping relationship, where the first mapping relationship includes: a correspondence between the controller device and a second base station having a second communication interface with the controller device, or a correspondence between the controller device and a third base station identical to the TAI of the controller device, the first base station including the second base station and the third base station.
The method according to claim 7, wherein the determining, by the core network device, the first mapping relationship comprises:

The core network device establishes a first communication interface with the controller device, and determines a correspondence between the controller device and the second base station when the first communication interface is established, the controller device The correspondence between the second base station and the second base station includes an ID of the second base station corresponding to the controller device.
The method according to claim 7, wherein the determining, by the core network device, the first mapping relationship comprises:

The core network device establishes a third communication interface with the second base station, and determines a correspondence between the controller device and the second base station when establishing the third communication interface, where the controller device The correspondence between the second base station and the second base station includes an ID of the unique controller device corresponding to the second base station.
The method according to claim 7, wherein the determining, by the core network device, the first mapping relationship comprises:

The core network device establishes a first communication interface with the controller device, and determines a correspondence between the controller device and the second base station when establishing the first communication interface; and/or

The core network device establishes a third communication interface with the second base station, and determines a correspondence between the controller device and the second base station when establishing the third communication interface;

The corresponding relationship between the controller device and the second base station includes: an ID of the controller device corresponding to the second base station, or a second base station corresponding to the controller device ID.
A communication method, comprising:

The controller device receives the query message sent by the core network device, where the query message carries the identifier of the user equipment UE;

Determining, by the controller device, whether the UE is located in a cell range covered by the controller device, according to the query message;

When the controller device determines that the UE is located within a cell range covered by the controller device, the controller device sends an acknowledgement message to the core network device.
The method according to claim 11, wherein after the controller device sends an acknowledgement message to the core network device, the method further includes:

The controller device receives a paging message sent by the core network device, where the paging message carries an identifier of the UE;

The controller device initiates a paging process according to the paging message.
The method according to claim 11 or 12, wherein before the controller device receives the query message sent by the core network device, the method further includes:

The controller device sends tracking area identification information to the core network device.
The method according to claim 13, wherein the controller device is a base station having a controller function, and before the controller device receives the query message sent by the core network device, the method further includes:

The base station sends first indication information to the core network device, where the first indication information is used to indicate to the core network device that the base station has a controller function.
The method according to claim 13, wherein the controller device is a device independent of the base station, and before the controller device receives the query message sent by the core network device, the method further includes:

The controller device establishes a first communication interface with the core network device.
The method according to claim 15, wherein the controller device sends the tracking area identification information to the core network device, which specifically includes:

When the controller device establishes the first communication interface with the core network device, the identifier ID of the controller device and the TAI of the controller device are sent to the core network device;

or,

And when the controller device establishes the first communication interface with the core network device, sending, to the core network device, an ID of the controller device and a second base station having a second communication interface with the controller device ID

or,

And when the controller device establishes the first communication interface with the core network device, sending, to the core network device, an ID of the controller device and a second base station having a second communication interface with the controller device TAI;

or,

And when the controller device establishes the first communication interface with the core network device, sending an ID of the controller device to the core network device, and a second base station having a second communication interface with the controller device The TAI and the ID of the second base station.
The method of claim 16 wherein said controller device is The core network device sends an ID of the controller device and an ID of a second base station having a second communication interface with the controller device, or the controller device sends the controller device to the core network device An ID and a TAI of the second base station having a second communication interface with the controller device, or the controller device transmitting the ID of the controller device to the core network device, and the presence of the controller device Before the TAI of the second base station of the communication interface and the ID of the second base station, the method further includes:

The controller device establishes a second communication interface with the second base station, and acquires an ID of the second base station and/or a TAI of the second base station when establishing the second communication interface; or, is established And indicating, by the second base station, an ID of the controller device.
The method of claim 11 wherein the method further comprises:

When the controller device determines that the UE is not located within a cell range covered by the controller device, the controller device sends a negative message to the core network device.
The method according to claim 11, wherein the controller device is a device independent of the base station, and before the controller device receives the query message sent by the core network device, the method further includes:

The controller device establishes a second communication interface with the second base station, and determines a correspondence between the controller device and the second base station when the second communication interface is established, where the correspondence includes the controller The ID of the second base station corresponding to the device;

The controller device establishes a first communication interface with the core network device, and sends the corresponding relationship to the core network device when the first communication interface is established.
The method according to claim 11, wherein the controller device is a device independent of the base station, and after the controller device sends an acknowledgement message to the core network device, the method further includes:

The controller device sends the second indication information to the UE, where the second indication information is used to indicate that the UE accesses the core network device.
A core network device, comprising:

a sending module, configured to send a query message to the at least one controller device, where the query message carries an identifier of the user equipment UE, where the query message is used to indicate that the controller device determines, according to the identifier of the UE, whether the UE is located Within the cell coverage covered by the controller device;

a receiving module, configured to receive an acknowledgement message sent by the first controller device, where the acknowledgement message is used by And indicating that the UE is located in a cell coverage by the first controller device, where the first controller device belongs to the at least one controller device.
The core network device according to claim 21, wherein the sending module is further configured to send a paging message to the first controller device or the first base station associated with the first controller device, where the The call message carries the identifier of the UE, and the paging message is used to indicate that the first controller device or the first base station associated with the first controller device initiates a paging process.
The core network device according to claim 21 or 22, wherein the core network device further comprises a determining module,

The receiving module is configured to acquire tracking area identification information of the at least one controller device before the sending module sends the query message to the at least one controller device;

The determining module, configured to: when the tracking area identifier information of the at least one controller device matches the tracking area identifier TAI in the tracking area identifier list of the UE, determine to send the query message to the at least one controller device .
The core network device according to claim 23, wherein the at least one controller device is a base station.

The receiving module is further configured to: before the determining module determines to send the query message to the at least one controller device, receive first indication information sent by the base station, where the first indication information is used for The core network device indicates that the base station has a controller function.
The core network device according to claim 23, wherein the at least one controller device is a device independent of the base station, and the core network device further includes:

The first interface establishing module is configured to establish a first communication interface with each of the controller devices before the sending module sends the query message to the at least one controller device.
The core network device according to claim 25, wherein the receiving module comprises:

a first receiving unit, configured to acquire an identifier ID of the controller device and a TAI of the controller device when the first interface establishing module and the controller device establish the first communication interface; or

a second receiving unit, configured to acquire an ID of the controller device and a second communication interface with the controller device when the first interface establishing module establishes the first communication interface with the controller device The ID of the second base station;

or,

a third receiving unit, configured to acquire an ID of the controller device and a second communication interface with the controller device when the first interface establishing module establishes the first communication interface with the controller device The TAI of the second base station;

or,

a fourth receiving unit, configured to acquire an ID of the controller device and a second communication interface with the controller device when the first interface establishing module and the controller device establish the first communication interface The TAI of the second base station and the ID of the second base station;

or,

a fifth receiving unit, configured to acquire an ID of the second base station, where the first base station establishing module and a second base station that has a second communication interface with the controller device The TAI of the second base station and the ID of the controller device having the second communication interface with the second base station.
The core network device according to claim 22, wherein the at least one controller device is a device that has a first communication interface with the core network device and is independent of the base station, and the core network device further includes:

a second interface establishing module, configured to determine a first mapping relationship before the sending module sends a paging message to the first base station associated with the first controller device, where the first mapping relationship includes: the controller a correspondence between the device and a second base station having a second communication interface with the controller device, or a correspondence between the controller device and a third base station that is the same as the TAI of the controller device, The first base station includes the second base station and the third base station.
The core network device according to claim 27, wherein the second interface establishing module is specifically configured to establish a first communication interface with the controller device, and determine the location when the first communication interface is established. The correspondence between the controller device and the second base station, the correspondence between the controller device and the second base station includes an ID of the second base station corresponding to the controller device.
The core network device according to claim 27, wherein the second interface establishing module is specifically configured to establish a third communication interface with the second base station, and determine the location when the third communication interface is established. The correspondence between the controller device and the second base station, the correspondence between the controller device and the second base station includes an ID of the unique controller device corresponding to the second base station.
The core network device according to claim 27, wherein the second interface establishing module is configured to establish a first communication interface with the controller device, and determine when the first communication interface is established. Corresponding relationship between the controller device and the second base station; and/or establishing a third communication interface with the second base station, and determining the controller device and when establishing the third communication interface Corresponding relationship between the second base stations;

The corresponding relationship between the controller device and the second base station includes: an ID of the controller device corresponding to the second base station, or a second base station corresponding to the controller device ID.
A controller device, comprising:

a receiving module, configured to receive a query message sent by the core network device, where the query message carries an identifier of the user equipment UE;

a determining module, configured to determine, according to the query message, whether the UE is located in a cell range covered by the controller device;

And a sending module, configured to send an acknowledgement message to the core network device when the determining module determines that the UE is located in a cell range covered by the controller device.
The controller device according to claim 31, wherein the receiving module is further configured to: after the sending module sends an acknowledgement message to the core network device, receive a paging message sent by the core network device. The paging message carries an identifier of the UE;

The sending module is further configured to initiate a paging process according to the paging message.
The controller device according to claim 31 or 32, wherein the sending module is further configured to send a tracking area identifier to the core network device before the receiving module receives the query message sent by the core network device. information.
The controller device according to claim 33, wherein the controller device is a base station having a controller function,

The sending module is further configured to: before the receiving module receives the query message sent by the core network device, send the first indication information to the core network device, where the first indication information is used to indicate to the core network device The base station has a controller function.
The controller device according to claim 33, wherein the controller device is a device independent of a base station, and the controller device further includes:

The first interface establishing module is configured to establish a first communication interface with the core network device before the receiving module receives the query message sent by the core network device.
The controller device according to claim 35, wherein the sending module comprises:

a first sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an identifier ID of the controller device and the controller to the core network device TAI of the device;

or,

a second sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an ID of the controller device and the controller to the core network device The device has an ID of the second base station of the second communication interface;

or,

a third sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an ID of the controller device and the controller to the core network device The device has a TAI of the second base station of the second communication interface;

or,

a fourth sending unit, configured to send, when the first interface establishing module and the core network device establish the first communication interface, an ID of the controller device to the core network device, and the controller The device has a TAI of the second base station of the second communication interface and an ID of the second base station.
The controller device according to claim 36, wherein the controller device further comprises:

a second interface establishing module, configured to send, by the second sending unit, the ID of the controller device to the core network device and the ID of the second base station that has a second communication interface with the controller device, or Transmitting, by the third sending unit, the ID of the controller device to the core network device and the TAI of the second base station having the second communication interface with the controller device, or in the fourth sending unit Sending, by the core network device, the ID of the controller device, the TAI of the second base station having the second communication interface of the controller device, and the ID of the second base station, establishing a second with the second base station a communication interface, and acquiring an ID of the second base station and/or a TAI of the second base station when establishing the second communication interface; or, when establishing the second communication interface, to the second base station Indicates the ID of the controller device.
The controller device according to claim 31, wherein the sending module is further configured to: when the determining module determines that the UE is not located within a cell coverage area covered by the controller device, to the core The network device sends a negative message.
The controller device according to claim 31, wherein the controller device is a device independent of a base station, and the controller device further includes a first interface establishing module and a second interface establishing module;

The second interface establishing module is configured to establish a second communication interface with the second base station, and determine a correspondence between the controller device and the second base station when the second communication interface is established, where the correspondence relationship is Include an ID of the second base station corresponding to the controller device;

The first interface establishing module is configured to establish a first communication interface with the core network device, and send the corresponding relationship to the core network device when the first communication interface is established.
The controller device according to claim 31, wherein the controller device is a device independent of a base station,

The sending module is further configured to: after sending an acknowledgment message to the core network device, send the second indication information to the UE, where the second indication information is used to indicate that the UE accesses the core network device.