WO2018202105A1

WO2018202105A1 - Data transmission method and related devices

Info

Publication number: WO2018202105A1
Application number: PCT/CN2018/085517
Authority: WO
Inventors: 刘菁; 彭文杰; 戴明增; 郭轶
Original assignee: 华为技术有限公司
Priority date: 2017-05-05
Filing date: 2018-05-03
Publication date: 2018-11-08
Also published as: CN108810926A; CN108810926B

Abstract

Disclosed in the embodiments of the present invention are a data transmission method, and related devices. The method comprises: determining by a secondary base station to add first secondary cells to a user equipment; and transmitting by the secondary base station a first message to a primary base station, the first message comprising identifiers of the first secondary cells and/or the number of the first secondary cells, and the first message being used to indicate the primary base station to allocate cell indexes to the first secondary cells. By use of the embodiments of the present invention, the process of triggering by the secondary base station an increase of the secondary cells is achieved, and the throughput of the user equipment is thus improved.

Description

Data transmission method and related equipment

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a data transmission method and related devices.

Background technique

The 3rd generation partnership project (3GPP) proposed the need for small cell enhancement in Release 12 (Rel-12). In the small cell architecture, user equipment (UE) can At the same time, data is transmitted and received at two base stations. This architecture is called a dual-connectivity (DC) architecture. Only one base station is responsible for transmitting a radio resource control (RRC) message to the UE, and is responsible for interacting with a mobile management entity (MME) of the core network control plane, which is called a master evolved NodeB (master evolved NodeB, MeNB), another base station is called a secondary evolved NodeB (SeNB). The UE has one cell in the primary base station as the primary cell (Pcell) of the UE, and the RRC message is sent to the UE through the primary cell, and the other cells are secondary cells (Scells). One cell in the Scell of the secondary base station is a secondary base station (pScell). There is an uplink physical layer control channel on the pScell, but not on other Scells. The cell group of the primary base station is a master cell group (MCG), and the cell group of the secondary base station is a secondary cell group (SCG).

In the prior art, the primary base station triggers the addition of the secondary cell of the secondary base station. In the fifth generation (5G) communication standard, the measurement report of the secondary base station is managed by the secondary base station, and the secondary base station can manage SCell adds operation, but does not give the specific process of SCell increase triggered by the secondary base station.

Summary of the invention

The embodiment of the invention provides a data transmission method and related equipment, which implements a process in which the secondary base station triggers the addition of the secondary cell, and improves the throughput of the user equipment.

The embodiment of the present invention can be specifically implemented by the following technical solutions:

In a first aspect, an embodiment of the present invention provides a data transmission method, which is applied to a secondary base station side. The method includes the secondary base station determining to add a first secondary cell to the user equipment. The secondary base station sends a first message to the primary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell, where the first message is used to indicate that the primary base station allocates a cell index to the first secondary cell. In the embodiment of the present invention, the secondary base station may autonomously determine whether to increase the secondary cell, and the secondary base station may trigger the process of adding the secondary cell, and the primary base station requests the secondary cell to allocate the cell index to be added by the secondary base station, thereby implementing the UE and the auxiliary. The newly added secondary cells are identified between the base stations to improve the throughput of the UE.

In a possible design, the first message further includes indication information that the secondary base station requests to increase the secondary cell.

In a possible design, the first message further includes the air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information includes the identifier of the first secondary cell and the air interface resource information corresponding to the identifier of the first secondary cell. The first message is further used to indicate that the primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment. In the embodiment of the present invention, the secondary base station may directly send the air interface resource configuration information corresponding to the first secondary cell to the primary base station, so that after the primary base station allocates the cell index to the first secondary cell, the primary base station directly allocates the allocated cell index and the secondary base station. The sent air interface resource configuration information is sent to the user equipment.

In a possible design, the first message includes the identifier of the first secondary cell, and after the secondary base station sends the first message to the primary base station, the secondary base station further receives the second message sent by the primary base station, where the second message includes the secondary base station allowing the secondary base station. The cell identifier corresponding to the identifier of the second secondary cell and the identifier of the second secondary cell, where the second secondary cell is part or all of the secondary cells in the first secondary cell. The secondary base station configures the air interface resource for the second secondary cell. In the embodiment of the present invention, the primary base station is the allocated cell index of the second secondary cell, and the allocated cell index is bound to the identifier of the second secondary cell, and the secondary base station is not required to perform binding.

In a possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives the second message sent by the primary base station, where the second message includes the cell index allocated by the primary base station to the secondary base station, and the number of the cell index is less than Or equal to the number of the first secondary cell. The secondary base station determines the second secondary cell according to the number of the cell index, allocates the received cell index to the second secondary cell, and configures the air interface resource for the second secondary cell, where the second secondary cell is in the first secondary cell. Part or all of the secondary cells. In the embodiment of the present invention, the primary base station allocates a certain number of cell indexes to the secondary cell, and sends the allocated cell index to the secondary base station, where the secondary base station performs binding of the cell identifier and the cell index.

In a possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives the second message sent by the primary base station, where the second message includes the number of secondary cells that the primary base station allows the secondary base station to increase, and the primary base station allocates The number of cell indexes allocated by the primary base station is the same as the number of secondary cells that the primary base station allows the secondary base station to increase, and the number of the cell index is smaller than the number of the first secondary cells. The secondary base station determines the second secondary cell according to the number of the secondary cells, allocates the received cell index to the second secondary cell, and configures the air interface resource for the second secondary cell, where the second secondary cell is part of the first secondary cell. Secondary cell. In the embodiment of the present invention, the primary base station allocates a certain number of cell indexes to the secondary cell, and sends the allocated cell index to the secondary base station, where the secondary base station performs binding of the cell identifier and the cell index.

In a possible design, after the secondary base station performs the configuration of the air interface resource for the second secondary cell, the secondary base station sends the air interface resource configuration information corresponding to the second secondary cell to the user equipment through the primary base station. Alternatively, the secondary base station directly sends the air interface resource configuration information corresponding to the second secondary cell to the user equipment. The air interface resource configuration information includes an identifier of the second secondary cell, a cell index of the second secondary cell, and air interface resource information of the second secondary cell.

In a possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives the third message sent by the primary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to increase the first secondary cell.

In a second aspect, an embodiment of the present invention provides another data transmission method, which is applied to a primary base station side. The method includes: receiving, by the primary base station, a first message sent by the secondary base station, where the first message includes an identifier of the first secondary cell requested by the secondary base station and/or a number of the first secondary cell. The primary base station determines whether to allocate a cell index to the secondary base station according to the first message. In the embodiment of the present invention, the secondary base station may autonomously determine whether to increase the secondary cell, and the secondary base station may trigger the process of adding the secondary cell, and the primary base station requests the secondary cell to allocate the cell index to be added by the secondary base station, thereby implementing the UE and the auxiliary. The newly added secondary cells are identified between the base stations to improve the throughput of the UE.

In a possible design, the first message further includes the air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information includes the identifier of the first secondary cell and the air interface resource information corresponding to the identifier of the first secondary cell. The primary base station determines, according to the first message, whether to allocate a cell index to the secondary base station, and the method includes: the primary base station allocates a cell index to the first secondary cell. After the primary base station allocates the cell index to the first secondary cell, the primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment. In the embodiment of the present invention, the secondary base station may directly send the air interface resource configuration information corresponding to the first secondary cell to the primary base station, so that after the primary base station allocates the cell index to the first secondary cell, the primary base station directly allocates the allocated cell index and the secondary base station. The sent air interface resource configuration information is sent to the user equipment.

In a possible design, the first message includes an identifier of the first secondary cell, and the primary base station determines, according to the first message, whether to allocate a cell index to the secondary base station, where the primary base station determines the second secondary cell that is allowed to be added by the secondary base station, and is The second secondary cell allocates a cell index, and the second secondary cell is a part or all of the secondary cells in the first secondary cell. After the primary base station allocates the cell index to the second secondary cell, the primary base station further sends a second message to the secondary base station, where the second message includes the identifier of the second secondary cell and the cell index corresponding to the identifier of the second secondary cell. In the embodiment of the present invention, the primary base station is the allocated cell index of the second secondary cell, and the allocated cell index is bound to the identifier of the second secondary cell, and the secondary base station is not required to perform binding.

In a possible design, the primary base station determines whether to allocate a cell index to the secondary base station according to the first message, including: the primary base station allocates a cell index to the secondary base station, and the number of the cell index is less than or equal to the number of the first secondary cell. After the primary base station allocates a cell index to the secondary base station, the primary base station further sends a second message to the secondary base station, where the second message includes a cell index. In the embodiment of the present invention, the primary base station allocates a certain number of cell indexes to the secondary cell, and sends the allocated cell index to the secondary base station, where the secondary base station performs binding of the cell identifier and the cell index.

In a possible design, the primary base station determines whether to allocate a cell index to the secondary base station according to the first message, where the primary base station determines the number of secondary cells added by the secondary base station, and allocates a cell index corresponding to the number of secondary cells. The number of cell indexes is smaller than the number of the first secondary cells. After the primary base station allocates the cell index corresponding to the number of the secondary cells, the primary base station further sends a second message to the secondary base station, where the second message includes the cell index and the number of secondary cells. In the embodiment of the present invention, the primary base station allocates a certain number of cell indexes to the secondary cell, and sends the allocated cell index to the secondary base station, where the secondary base station performs binding of the cell identifier and the cell index.

In a possible design, the primary base station determines whether to allocate a cell index to the secondary base station according to the first message, including: the primary base station determines to reject the request of the secondary base station to add the first secondary cell. After the primary base station determines to reject the request of the secondary base station to add the first secondary cell, the primary base station sends a third message to the secondary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to increase the first secondary cell.

In a third aspect, an embodiment of the present invention provides another data transmission method, which is applied to a secondary base station side. The method includes: receiving, by the secondary base station, a measurement report corresponding to the secondary base station sent by the user equipment. The secondary base station sends a first message to the primary base station, where the first message includes a measurement report, where the first message is used by the primary base station to add a secondary cell to the secondary base station according to the measurement report. In the embodiment of the present invention, the secondary base station may notify the primary base station of the measurement report reported by the UE, and the primary base station determines, according to the measurement report, whether the secondary base station performs the addition of the secondary cell, and the primary base station requests the secondary secondary base station to request the added secondary cell to allocate the cell index. Therefore, the secondary cell that is newly identified between the UE and the secondary base station is implemented, and the throughput of the UE is improved.

In a possible design, the first message further includes one or more of the indication information of the secondary base station requesting to increase the secondary cell, the number of secondary cells requested by the secondary base station, and the load information corresponding to the secondary cell included in the measurement report. In the embodiment of the present invention, the primary base station may determine the number of secondary cells added by the secondary base station, in combination with the number of the secondary cells that the secondary base station requests to be added, and the load information corresponding to the secondary cells included in the measurement report.

In a possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives the second message sent by the primary base station, where the second message includes the identifier of the first secondary cell that the primary base station allows the secondary base station to increase, and the first The secondary cell identifier corresponds to the cell index, and the first secondary cell includes one or more. The secondary base station configures the air interface resource for the first secondary cell.

In a possible design, after the secondary base station performs the configuration of the air interface resource for the first secondary cell, the secondary base station sends the air interface resource configuration information corresponding to the first secondary cell to the user equipment through the primary base station. Alternatively, the secondary base station directly sends the air interface resource configuration information corresponding to the first secondary cell to the user equipment. The air interface resource configuration information includes an identifier of the first secondary cell, a cell index of the first secondary cell, and air interface resource information of the first secondary cell.

In a possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives the third message sent by the primary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to increase the secondary cell.

In a fourth aspect, an embodiment of the present invention provides another data transmission method, which is applied to a primary base station side. The method includes: receiving, by the primary base station, a first message sent by the secondary base station, where the first message includes a measurement report of the user equipment to the secondary base station. The primary base station determines, according to the first message, whether the secondary base station increases the secondary cell. In the embodiment of the present invention, the secondary base station may notify the primary base station of the measurement report reported by the UE, and the primary base station determines, according to the measurement report, whether the secondary base station performs the addition of the secondary cell, and the primary base station requests the secondary secondary base station to request the added secondary cell to allocate the cell index. Therefore, the secondary cell that is newly identified between the UE and the secondary base station is implemented, and the throughput of the UE is improved.

In a possible design, the primary base station determines whether the secondary base station adds the secondary cell according to the first message, and includes: the primary base station determines, according to the measurement report, the first secondary cell added by the secondary base station, and allocates a cell index to the first secondary cell, where The secondary cell includes one or more. After the primary base station allocates the cell index to the first secondary cell, the primary base station sends a second message to the secondary base station, where the second message includes the identifier of the first secondary cell and the cell index corresponding to the first secondary cell identifier.

In a possible design, the primary base station determines whether the secondary base station adds the secondary cell according to the first message, and includes: the primary base station determines to reject the request of the secondary base station to increase the secondary cell. After the primary base station determines to reject the request of the secondary base station to add the secondary cell, the primary base station sends a third message to the secondary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to increase the secondary cell.

In a fifth aspect, an embodiment of the present invention provides another data transmission method, which is applied to a secondary base station side. The method includes: the secondary base station determines to add a first secondary cell to the user equipment, and allocates a cell index to the first secondary cell. The secondary base station configures the air interface resource for the first secondary cell, and sends the generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes the identifier of the first secondary cell, the cell index of the first secondary cell, and the first auxiliary Air interface resource information of the cell. In the embodiment of the present invention, the secondary base station may autonomously determine whether to increase the secondary cell, and the secondary base station allocates a cell index for the added secondary cell, so as to implement a newly added secondary cell between the UE and the secondary base station, and improve the UE. Throughput.

In a possible design, after the secondary base station allocates the cell index to the first secondary cell, the secondary base station further sends the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell to the primary base station. In the embodiment of the present invention, the secondary base station may notify the primary base station of the identifier of the added secondary cell and the cell index.

In a sixth aspect, an embodiment of the present invention provides another data transmission method, which is applied to a primary base station side. The method includes: receiving, by the primary base station, an identifier of the first secondary cell and a cell index corresponding to the identifier of the first secondary cell, where the first secondary cell is a secondary cell that is determined by the secondary base station to be added by the user equipment, and the cell index is a secondary base station. Assigned to the first secondary cell. In the embodiment of the present invention, the secondary base station may autonomously determine whether to increase the secondary cell, and the secondary base station allocates a cell index for the added secondary cell, so as to implement a newly added secondary cell between the UE and the secondary base station, and improve the UE. Throughput.

In a seventh aspect, the embodiment of the present invention further provides a secondary base station, where the secondary base station implements the function of the secondary base station in the data transmission method of the first aspect, and thus can also implement the beneficial effects of the data transmission method of the first aspect. The function of the secondary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the above functions.

In one possible design, the secondary base station includes a processing unit and a communication unit. a processing unit, configured to determine to add a first secondary cell to the user equipment, and a communication unit, configured to send a first message to the primary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell, where A message is used to indicate that the primary base station allocates a cell index to the first secondary cell.

In a possible design, the first message further includes the air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information includes the identifier of the first secondary cell and the air interface resource information corresponding to the identifier of the first secondary cell; It is further configured to instruct the primary base station to send the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment.

In a possible design, the first message includes an identifier of the first secondary cell, and the communication unit is configured to: after the first message is sent to the primary base station, the communication unit is further configured to receive the second message sent by the primary base station, the second message And including, by the primary base station, the identifier of the second secondary cell that is added by the secondary base station and the cell index corresponding to the identifier of the second secondary cell, where the second secondary cell is part or all of the secondary cells in the first secondary cell, and the processing unit is further configured to: The second secondary cell performs configuration of air interface resources.

In a possible design, after the communication unit is configured to send the first message to the primary base station, the communication unit is further configured to receive a second message sent by the primary base station, where the second message includes a cell index allocated by the primary base station to the secondary base station. The number of the cell index is less than or equal to the number of the first secondary cell; the processing unit is further configured to determine the second secondary cell according to the number of cell indexes, and allocate the received cell index to the second secondary cell, and The second secondary cell performs the configuration of the air interface resource, and the second secondary cell is part or all of the secondary cells in the first secondary cell.

In a possible design, after the communication unit is configured to send the first message to the primary base station, the communication unit is further configured to receive the second message sent by the primary base station, where the second message includes the secondary cell that the primary base station allows the secondary base station to add. a number, and a cell index allocated by the primary base station, where the number of cell indexes allocated by the primary base station is the same as the number of secondary cells allowed by the primary base station to be added by the secondary base station, and the number of cell indexes is smaller than the number of the first secondary cells; And the unit is further configured to determine the second secondary cell according to the number of the secondary cells, allocate the received cell index to the second secondary cell, and configure the air interface resource for the second secondary cell, where the second secondary cell is the first secondary cell Part of the secondary cell.

In a possible design, after the processing unit is configured to perform the configuration of the air interface resource for the second secondary cell, the communication unit is further configured to send the air interface resource configuration information corresponding to the second secondary cell to the user equipment by using the primary base station; or The air interface resource configuration information corresponding to the second secondary cell is directly sent to the user equipment, where the air interface resource configuration information includes the identifier of the second secondary cell, the cell index of the second secondary cell, and the air interface resource information of the second secondary cell.

In a possible design, after the communication unit is configured to send the first message to the primary base station, the communication unit is further configured to receive a third message sent by the primary base station, where the third message is used to indicate that the primary base station rejects the secondary base station and adds the first message. The request of the secondary cell.

In an eighth aspect, the embodiment of the present invention further provides a primary base station, where the primary base station implements the function of the primary base station in the data transmission method of the second aspect, and thus can also implement the beneficial effects of the second aspect data transmission method. The function of the primary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the above functions.

In one possible design, the primary base station includes a processing unit and a communication unit. a communication unit, configured to receive a first message sent by the secondary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell that the secondary base station requests to be added, and a processing unit, configured to determine, according to the first message, Whether to allocate a cell index to the secondary base station.

In a possible design, the first message further includes the air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information includes the identifier of the first secondary cell and the air interface resource information corresponding to the identifier of the first secondary cell; Determining whether to allocate a cell index to the secondary base station according to the first message, including: allocating a cell index to the first secondary cell; and processing unit, configured to allocate a cell index to the first secondary cell, the communication unit, and the The cell index and the air interface resource configuration information sent by the secondary base station are sent to the user equipment.

In a possible design, the first message includes an identifier of the first secondary cell, and the processing unit is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including: determining a second secondary cell that is allowed to be added by the secondary base station, and Allocating a cell index to the second secondary cell, the second secondary cell is a part or all of the secondary cells in the first secondary cell; the processing unit is configured to allocate a cell index to the second secondary cell, and the communication unit is further configured to the secondary base station Sending a second message, where the second message includes an identifier of the second secondary cell and a cell index corresponding to the identifier of the second secondary cell.

In a possible design, the processing unit is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including: allocating a cell index to the secondary base station, where the number of the cell index is less than or equal to the number of the first secondary cell; After the cell is allocated to the secondary base station, the communication unit is further configured to send a second message to the secondary base station, where the second message includes a cell index.

In a possible design, the processing unit is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including: determining a number of secondary cells added by the secondary base station, and allocating a cell index corresponding to the number of secondary cells. The number of the cell index is smaller than the number of the first secondary cell; the processing unit is configured to allocate the cell index corresponding to the number of the secondary cell, and the communication unit is further configured to send the second message to the secondary base station, and second The message includes a cell index and a number of secondary cells.

In a possible design, the processing unit is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including: determining a request for rejecting the secondary base station to add the first secondary cell; and processing, configured to determine to reject the secondary base station by adding After the request of the secondary cell, the communication unit is further configured to send a third message to the secondary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to add the first secondary cell.

In a ninth aspect, the embodiment of the present invention further provides another secondary base station, which implements the function of the secondary base station in the data transmission method of the third aspect, and thus can also implement the beneficial effects of the data transmission method of the third aspect. The function of the secondary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the above functions.

In one possible design, the secondary base station includes a processing unit and a communication unit. a communication unit, configured to receive a measurement report corresponding to the secondary base station sent by the user equipment, where the communication unit is further configured to send the first message to the primary base station, where the first message includes a measurement report, where the first message is used by the primary base station according to the measurement report The base station adds a secondary cell.

In a possible design, the first message further includes one or more of the indication information of the secondary base station requesting to increase the secondary cell, the number of secondary cells requested by the secondary base station, and the load information corresponding to the secondary cell included in the measurement report.

In a possible design, after the communication unit is configured to send the first message to the primary base station, the communication unit is further configured to receive the second message sent by the primary base station, where the second message includes the first auxiliary that the primary base station allows the secondary base station to add. The identifier of the cell and the cell index corresponding to the first secondary cell identifier, the first secondary cell includes one or more, and the processing unit is configured to configure the air interface resource for the first secondary cell.

In a possible design, after the processing unit is configured to perform the configuration of the air interface resource for the first secondary cell, the communication unit is further configured to send the air interface resource configuration information corresponding to the first secondary cell to the user equipment by using the primary base station; or The air interface resource configuration information corresponding to the first secondary cell is directly sent to the user equipment, where the air interface resource configuration information includes an identifier of the first secondary cell, a cell index of the first secondary cell, and air interface resource information of the first secondary cell.

In a possible design, after the communication unit is configured to send the first message to the primary base station, the communication unit is further configured to receive a third message sent by the primary base station, where the third message is used to indicate that the primary base station rejects the secondary base station to add the secondary cell. Request.

In a tenth aspect, the embodiment of the present invention further provides another primary base station, which implements the function of the primary base station in the data transmission method in the fourth aspect, and thus can also implement the beneficial effects of the fourth aspect data transmission method. The function of the primary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the above functions.

In one possible design, the primary base station includes a processing unit and a communication unit. The communication unit is configured to receive the first message sent by the secondary base station, where the first message includes a measurement report of the user equipment to the secondary base station, and the processing unit is configured to determine, according to the first message, whether the secondary base station adds the secondary cell.

In a possible design, the processing unit is configured to determine whether the secondary base station adds the secondary cell according to the first message, including: determining, by the measurement report, the first secondary cell added by the secondary base station, and assigning a cell index to the first secondary cell, where A secondary cell includes one or more; a processing unit, configured to: after the cell index is allocated to the first secondary cell, the communication unit is further configured to send a second message to the secondary base station, where the second message includes the identifier of the first secondary cell and the A cell index corresponding to a secondary cell identifier.

In a possible design, the processing unit, configured to determine, according to the first message, whether the secondary base station adds the secondary cell, includes: determining a request for rejecting the secondary base station to add the secondary cell; and the processing unit, configured to determine, to determine, requesting the secondary base station to increase the secondary cell After that, the method further includes: a communication unit, configured to send a third message to the secondary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to increase the secondary cell.

In an eleventh aspect, the embodiment of the present invention further provides another secondary base station, where the secondary base station implements the function of the secondary base station in the data transmission method in the foregoing fifth aspect, and thus can also implement the beneficial effects of the data transmission method in the fifth aspect. . The function of the secondary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the above functions.

In one possible design, the secondary base station includes a processing unit and a communication unit. a processing unit, configured to determine to add a first secondary cell to the user equipment, and allocate a cell index to the first secondary cell; the processing unit is further configured to configure the air interface resource for the first secondary cell, and configure the generated air interface resource configuration information The air interface resource configuration information is directly sent to the user equipment, and the air interface resource configuration information includes an identifier of the first secondary cell, a cell index of the first secondary cell, and air interface resource information of the first secondary cell.

In a possible design, after the processing unit allocates a cell index to the first secondary cell, the communication unit is configured to send, to the primary base station, an identifier of the first secondary cell and a cell index corresponding to the identifier of the first secondary cell.

In a twelfth aspect, the embodiment of the present invention further provides another primary base station, where the primary base station implements the function of the primary base station in the data transmission method in the sixth aspect, and thus can also implement the beneficial effects of the sixth aspect data transmission method. . The function of the primary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the above functions.

In one possible design, the primary base station includes a communication unit. a communication unit, configured to receive, by the secondary base station, an identifier of the first secondary cell and a cell index corresponding to the identifier of the first secondary cell, where the first secondary cell is a secondary cell that is determined by the secondary base station to be added by the user equipment, and the cell index is a secondary base station. Assigned by the first secondary cell.

In a thirteenth aspect, the embodiment of the present invention further provides another secondary base station, where the secondary base station implements the function of the secondary base station in the data transmission method in the foregoing first aspect, and thus can also implement the beneficial effects of the first aspect data transmission method. . The function of the secondary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the functions described above. The secondary base station includes a transceiver and a processor, and implements functions corresponding to the communication unit and the processing unit in the secondary base station of the seventh aspect, respectively.

In a fourteenth aspect, the embodiment of the present invention further provides another primary base station, where the primary base station implements the function of the primary base station in the data transmission method of the second aspect, and thus can also implement the beneficial effects of the second aspect data transmission method. . The function of the primary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the functions described above. The secondary base station includes a transceiver and a processor, and implements functions corresponding to the communication unit and the processing unit in the primary base station of the eighth aspect, respectively.

In a fifteenth aspect, the embodiment of the present invention further provides another secondary base station, where the secondary base station implements the function of the secondary base station in the foregoing third aspect data transmission method, and thus can also implement the beneficial effects of the third aspect data transmission method. . The function of the secondary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the functions described above. The secondary base station includes a transceiver and a processor, and implements functions corresponding to the communication unit and the processing unit in the secondary base station of the ninth aspect, respectively.

In a sixteenth aspect, the embodiment of the present invention further provides another primary base station, where the primary base station implements the function of the primary base station in the data transmission method in the fourth aspect, and thus can also implement the beneficial effects of the fourth aspect data transmission method. . The function of the primary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the functions described above. The primary base station includes a transceiver and a processor, respectively implementing functions corresponding to the communication unit and the processing unit in the primary base station of the above tenth aspect.

In a seventeenth aspect, the embodiment of the present invention further provides another secondary base station, where the secondary base station implements the function of the secondary base station in the data transmission method in the foregoing fifth aspect, and thus can also implement the beneficial effects of the data transmission method in the fifth aspect. . The function of the secondary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the functions described above. The secondary base station includes a transceiver and a processor, and implements functions corresponding to the communication unit and the processing unit in the secondary base station of the eleventh aspect, respectively.

In an eighteenth aspect, the embodiment of the present invention further provides another primary base station, where the primary base station implements the function of the primary base station in the data transmission method in the fourth aspect, and thus can also implement the beneficial effects of the fourth aspect data transmission method. . The function of the primary base station may be implemented by using hardware or by executing corresponding software through hardware. The hardware or software includes at least one module corresponding to the functions described above. The primary base station includes a transceiver, which respectively implements functions corresponding to communication units in the primary base station of the twelfth aspect.

In a nineteenth aspect, the embodiment of the present invention further provides a communication system, including: a secondary base station and a primary base station, where: the secondary base station is a seventh aspect, a ninth aspect, an eleventh aspect, and a thirteenth aspect, The secondary base station according to the fifteenth aspect, wherein the primary base station is the eighth aspect, the tenth aspect, the twelfth aspect, the fourteenth aspect, the sixteenth aspect or the eighteenth aspect Primary base station.

In a twentieth aspect, the embodiment of the present invention provides a computer storage medium, configured to store computer software instructions used by the secondary base station according to the first aspect, where the instruction is used by the secondary base station to enable the auxiliary The base station performs the method according to the first aspect described above; or is configured to store computer software instructions used by the secondary base station according to the third aspect, the instruction, when executed by the secondary base station, to cause the secondary base station to perform a method as in the above third aspect; or a computer software instruction for storing the secondary base station according to the fifth aspect, wherein the instruction, when executed by the secondary base station, causes the secondary base station to perform the foregoing The method of the fifth aspect.

In a twenty-first aspect, an embodiment of the present invention provides another computer storage medium, configured to store computer software instructions used by the primary base station according to the second aspect, where the instructions are executed by the primary base station The primary base station performs the method as described in the second aspect above; or is configured to store computer software instructions for the primary base station described in the fourth aspect above, the instructions causing the primary when executed by the primary base station The base station performs the method as described in the above fourth aspect; or is configured to store computer software instructions for the secondary base station according to the sixth aspect, wherein the instruction causes the primary base station to perform when executed by the primary base station The method as described in the sixth aspect above.

According to a twenty-second aspect, an embodiment of the present invention provides a computer program, where the program includes computer software instructions, when the instruction is executed by the secondary base station, causing the secondary base station to perform the method as described in the foregoing first aspect; Alternatively, the program includes computer software instructions that, when executed by the secondary base station, cause the secondary base station to perform the method of the third aspect described above; or, the program includes computer software instructions that are When the secondary base station is executed, the secondary base station is configured to perform the method as described in the fifth aspect above.

In a twenty-third aspect, an embodiment of the present invention provides another computer program, the program comprising computer software instructions, when executed by the primary base station, causing the primary base station to perform the method as described in the second aspect above Or the program includes computer software instructions that, when executed by the primary base station, cause the primary base station to perform the method as described in the fourth aspect above; or, the program includes computer software instructions, the instructions The primary base station is caused to perform the method as described in the sixth aspect above when executed by the primary base station.

DRAWINGS

1 is a schematic structural diagram of a communication system according to an embodiment of the present invention;

2 is a flowchart of a data transmission method according to an embodiment of the present invention;

3 is a flowchart of another data transmission method according to an embodiment of the present invention;

4 is a flowchart of another data transmission method according to an embodiment of the present invention;

FIG. 5 is a flowchart of another data transmission method according to an embodiment of the present invention;

FIG. 6 is a flowchart of another data transmission method according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a PHR format according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a secondary base station according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a primary base station according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of another secondary base station according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of another primary base station according to an embodiment of the present invention.

detailed description

1 is a schematic structural diagram of a communication system according to an embodiment of the present invention. The communication system 100 includes a primary base station (MeNB) 101, which provides basic network coverage 110, and one or more secondary base stations (SeNB). 102 (in the figure, a secondary base station is taken as an example), which respectively provides a relatively small network coverage 120 (marked with a backslash in the figure). User equipment (UE) 103 within the common coverage of primary base station 101 and secondary base station 102 will be able to establish a communication connection with primary base station 101 and a corresponding secondary base station (e.g., secondary base station 102).

Here, the case where a user equipment (UE) has a connection with one primary base station and one or more secondary base stations is referred to as a dual connection or a multiple connection. In the following description, various embodiments of the present invention are described by taking a case where a UE (e.g., UE 103) has a dual connection with a primary base station (e.g., primary base station 101) and a secondary base station (e.g., secondary base station 102). However, those skilled in the art will appreciate that the scheme described below is also fully applicable to the case where there is multiple connections between one UE and one primary base station and multiple secondary base stations.

The primary base station 101 or the secondary base station 102 in the embodiments of the present invention includes, but is not limited to, a base station NodeB, an evolved base station eNodeB, a base station in a 5G communication system, a base station or a network device in a future communication system. The UE may also be referred to as a terminal terminal, a mobile station (MS), a mobile terminal (MT), or the like. The UE may communicate with one or more core networks via a radio access network (RAN), or may access the distributed network in an ad hoc or unlicensed manner, and the UE may also access the wireless network through other means. The communication is not limited in this embodiment of the present invention.

In the dual-connection architecture, the architecture is that the primary base station 101 and the MME have an S1 signaling connection, the secondary base station 102 and the MME have no S1 signaling connection, and the secondary base station 102 performs signaling interaction with the MME through the primary base station 101. In the user plane, the primary base station 101 and the secondary base station 102 and the service gateway (SGW) both have a user plane connection of S1, so that the SGW can send different services of the UE to the UE through the primary base station 101 and the secondary base station 102 respectively. Another architecture is that the primary base station 101 and the SGW have a user plane connection of S1, the secondary base station 102 and the SGW do not have a user plane connection of S1, and the SGW sends all data of the UE to the primary base station 101, and the primary base station 101 performs the UE. The traffic data is offloaded, and the different data packets of the same service of the UE are sent to the UE through the primary base station 101 and the secondary base station 102, respectively.

In the long term evolution (LTE) system, the measurement report of the UE for the secondary base station 102 is reported to the primary base station 101, and the primary base station 101 determines whether the secondary base station 102 adds the secondary cell according to the measurement report, thereby being the UE. 103 provides a transmission service to improve the throughput of the UE. In the embodiment of the present invention, the secondary base station 102 and the UE 103 are connected by using a wireless air interface, and the UE 103 can report the measurement report for the secondary base station 102 to the secondary base station 102. After the secondary base station 102 obtains the measurement report, the secondary base station 102 obtains the measurement report. It is possible to autonomously decide whether it is necessary to increase the secondary cell, thereby triggering the process of adding the secondary cell.

FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present invention. In the embodiment of the present invention, the secondary base station determines to add the secondary cells according to the measurement report reported by the UE, and allocates a cell index to the secondary cells by the primary base station. The data transmission method includes but is not limited to the following steps.

S201: The secondary base station determines to add a first secondary cell to the user equipment.

In the embodiment of the present invention, the first secondary cell refers to a set of secondary cells that the secondary base station requests to increase, and the first secondary cell includes one or more secondary cells. Before the secondary base station determines that the first secondary cell is added to the UE, the UE sends a measurement report to the secondary base station, and the secondary base station receives the measurement report sent by the UE, where the measurement report is a measurement report obtained by the UE for measuring the measurement configuration delivered by the secondary base station. . The secondary base station determines whether to increase the secondary cell according to a preset policy (for example, according to the measurement report reported by the UE and/or the cell load information, etc.). For example, the measurement report includes the measurement result of the three secondary cells on the secondary base station, and the measurement result may be reference signal received power (RSRP), where the RSRP of the secondary cell 1 is -95 dBm, and the secondary cell 2 The RSRP is -105 dBm, and the RSRP of the secondary cell 3 is -115 dBm. However, the cell load of the secondary cell 3 is heavy. Therefore, the secondary base station can determine that the secondary cell 1 and the secondary cell 2 can be added to provide services for the UE to improve the UE. Throughput.

S202: The secondary base station sends a first message to the primary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell.

In some possible implementation manners, the first message includes an identifier of the first secondary cell. The primary base station can know which one or which secondary cells the secondary base station wants to add according to the identifier. In some possible implementation manners, the first message includes the number of the first secondary cells. According to the number, the primary base station can know that the secondary base station wants to add several secondary cells. In some possible implementation manners, the first message includes an identifier of the first secondary cell and a number of the first secondary cell. The primary base station can know, according to the identifier and the number, whether the secondary base station wants to add several secondary cells, and which secondary cell or secondary cells the secondary base station wants to add.

The identifier of the secondary cell includes, but is not limited to, a physical cell identifier (PCI) or an evolved cell global identifier (ECGI) or an absolute radio frequency channel number (ARFCN). The secondary base station may request to add one or more secondary cells. If the secondary base station requests to add multiple secondary cells, the identifier of the secondary cell is an identifier list.

The first message is used to indicate that the primary base station allocates a cell index to the first secondary cell. It should be noted that, the first message is used to indicate that the primary base station allocates a cell index to the first secondary cell: after receiving the first message sent by the secondary base station, the primary base station learns, according to the first message, that the secondary base station wants to increase. If the primary base station agrees with the request of the secondary base station, the primary base station allocates a cell index to the first secondary cell; if the primary base station only approves the secondary base station to add a part of the secondary secondary cells in the first secondary cell, the primary base station only The partial secondary cell allocates a cell index; if the primary base station rejects the request of the secondary base station, the primary base station does not allocate a cell index to the secondary base station.

In some possible implementation manners, the first message further includes indication information that the secondary base station requests to add the secondary cell, where the indication information is used to indicate that the primary base station secondary base station needs to perform the secondary cell addition operation.

In some possible implementation manners, the first message further includes air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information is configured by the secondary base station for each secondary cell in the first secondary cell. The first message is further used to indicate that the primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment. The air interface resource configuration information includes an identifier of the first secondary cell and air interface resource information corresponding to the identifier of the first secondary cell. The air interface resource information includes, but is not limited to, a data radio bearer (DRB) configuration parameter, an air interface resource configuration parameter, and the like. It should be noted that the first message is further used to indicate that the primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment, that is, after the primary base station receives the first message sent by the secondary base station, The first message is used to learn the first secondary cell that the secondary base station wants to add. If the primary base station agrees with the request of the secondary base station, the first secondary cell is allocated a cell index, and the air interface configuration information sent by the secondary base station and the cell index allocated by the primary base station are obtained. Send to the user device together.

S203: The primary base station receives the first message sent by the secondary base station, and determines, according to the first message, whether to allocate a cell index to the secondary base station.

In the embodiment of the present invention, the primary base station determines whether to allocate a cell index to the secondary base station according to the received first message. The determining, by the primary base station, whether to allocate the cell index to the secondary base station according to the first message includes but is not limited to the following three implementation manners. The first implementation manner is: the primary base station learns that the secondary base station requests to add the first secondary cell according to the received first message, and the primary base station determines that the secondary base station is allowed to add all the secondary cells in the first secondary cell, and the primary base station needs to be the first All secondary cells in the secondary cell allocate a cell index. The second implementation manner is: the primary base station learns that the secondary base station requests to add the first secondary cell according to the received first message, but the primary base station only allows the secondary base station to add some secondary cells in the first secondary cell, and the primary base station only needs to be The partial secondary cell allocates a cell index. The part of the secondary cell is a part of the secondary cell in the first secondary cell. In the embodiment of the present invention, the secondary cell that the primary base station allows the secondary base station to increase is represented by the second secondary cell. In the second implementation manner, the second secondary cell is a partial secondary cell in the first secondary cell. In the first implementation manner, the second secondary cell is all secondary cells in the first secondary cell. The third implementation manner is: the primary base station learns that the secondary base station requests to add the first secondary cell according to the received first message, but the primary base station rejects the request of the secondary base station to increase the secondary cell, and the primary base station does not need to allocate the cell to the first secondary cell. index. The following three implementations are described separately.

In the first implementation manner, the primary base station allocates a corresponding cell index to all secondary cells in the first secondary cell. For example, if the first message includes the identifier of the first secondary cell, the primary base station allocates a cell index corresponding to the identifier for each identifier. Alternatively, the primary base station receives the secondary cell addition request of the secondary base station, and allocates the same cell index to the secondary base station as the number of the first secondary cell. For example, if the first message includes the identifier of the first secondary cell, the primary base station allocates the same number of cell indexes to the secondary base station according to the number of the identifiers. Alternatively, if the first message includes the number of the first secondary cell, the primary base station allocates the same cell index as the number according to the number.

For example, the first message includes the identifier 001 of the secondary cell 1, the identifier 002 of the secondary cell 2, and the identifier 003 of the secondary cell 3. The primary base station allows the secondary base station to add all the secondary cells, and the primary base station is the secondary cell 1 and the secondary cell 2. The cell index is allocated to the secondary cell 3, for example, the cell index corresponding to the identifier 001 of the secondary cell 1 is 01, the cell index corresponding to the identifier 002 of the secondary cell 2 is 02, and the cell index corresponding to the identifier 003 of the secondary cell 3 is 03. Or, the first message includes the identifier 001 of the secondary cell 1, the identifier 002 of the secondary cell 2, and the identifier 003 of the secondary cell 3. The primary base station allocates three cell indexes to the secondary base station according to the number of identifiers. Or, if the first message includes the number 3 of the first secondary cell, the primary base station allocates three cell indexes to the secondary base station.

In the second implementation manner, the primary base station allocates only the corresponding cell index to the second secondary cell. For example, if the first message includes the identifier of the first secondary cell, and the primary base station only allows the secondary base station to add a part of the secondary cells in the first secondary cell, the primary base station selects the identifier of the partial secondary cell from the identifier of the first secondary cell. The corresponding cell index is allocated, and the selected secondary cell is the determined second secondary cell, and the primary base station allocates the cell index corresponding to the identifier to the identifier of the second secondary cell. Alternatively, the primary base station only allows the secondary base station to add a part of the secondary cells, and allocates the same number of cell indexes to the secondary base station as the number of the secondary secondary cells. Alternatively, if the first message includes the identifier of the first secondary cell, the primary base station may determine, according to the number of the identifiers, that the secondary base station wants to add several secondary cells, and if the primary base station only allows the secondary base station to add a part of the secondary cells, Then, the primary base station determines the number of the partial secondary cells, and allocates the same number of cell indexes to the secondary base station. Or, if the first message includes the number of the first secondary cell, the primary base station may determine, according to the number, that the secondary base station wants to add several secondary cells, and if the primary base station only allows the secondary base station to add a part of the secondary cells, Then, the primary base station determines the number of the partial secondary cells, and allocates the same number of cell indexes to the secondary base station.

For example, the first message includes the identifier 001 of the secondary cell 1, the identifier 002 of the secondary cell 2, and the identifier 003 of the secondary cell 3. The primary base station only allows the secondary base station to add the secondary cell 1 and the secondary cell 2, and the primary base station only supplements The cell index corresponding to the identifier 001 of the secondary cell 1 is 01, and the cell index corresponding to the identifier 002 of the secondary cell 2 is 02. Or, the first message includes the identifier 001 of the secondary cell 1, the identifier 002 of the secondary cell 2, and the identifier 003 of the secondary cell 3. The primary base station allocates the secondary cell to the secondary base station according to the number of secondary cells that only the secondary base station increases. The same number of cell indexes. Alternatively, if the first message includes the number 3 of the first secondary cell, and the primary base station only allows the secondary base station to add 2 secondary cells, the primary base station only allocates 2 cell indexes for the secondary base station, for example, 01 and 02.

In a third implementation manner, the primary base station rejects the secondary base station to add the first secondary cell, and the primary base station does not allocate the cell index to the secondary base station, and notifies the secondary base station of the reason for the rejection.

By implementing the embodiment of the present invention, the secondary base station may determine whether to increase the secondary cell based on the measurement report reported by the UE, and the secondary base station may trigger the process of adding the secondary cell, and the primary base station requests the secondary secondary station to allocate the secondary cell to allocate the cell index. Therefore, the secondary cell that is newly identified between the UE and the secondary base station is implemented, and the throughput of the UE is improved.

Further, after the primary base station allocates the cell index to the secondary base station, the primary base station also needs to send the allocated cell index to the secondary base station. The data transmission method in the above three implementations will be described with reference to FIG. 3. The first message may be a SeNB Modification Required message. The individual steps are described in detail below.

S301. The secondary base station determines to add a first secondary cell to the user equipment.

S302: The secondary base station sends a secondary base station modification request message to the primary base station, where the primary base station receives the secondary base station modification request message sent by the secondary base station.

The information included in the secondary base station modification request message may refer to the information included in the foregoing first message, and details are not described herein again.

Referring to the first case in FIG. 3, it corresponds to the first implementation described above. After receiving the modification request message sent by the secondary base station, the primary base station learns the first secondary cell that the secondary base station wants to add, and the primary base station allows the secondary base station to add all the secondary cells in the first secondary cell, and allocates a cell index to the secondary base station (step S3031) ). After the primary base station allocates the cell index to the secondary base station, the primary base station sends a secondary base station modification response message to the secondary base station, and the secondary base station receives the secondary base station modification response message sent by the primary base station (step S3032). The secondary base station modification response message includes a cell index allocated by the primary base station to the secondary base station, and the number of the cell index is equal to the number of the first secondary cell. Further, if the primary base station allocates a corresponding cell index for each identifier in the identifier of the first secondary cell, the secondary base station modification response message includes, in addition to the cell index, a first secondary cell corresponding to each cell index. Logo. In this implementation manner, the primary base station performs binding of the cell identifier and the cell index. If the secondary base station modification response message does not include the correspondence between the cell index and the cell identifier, the secondary base station needs to bind the identifier of the first secondary cell to the received cell index after receiving the cell index sent by the primary base station. set. In this implementation manner, the secondary base station performs binding of the cell identifier and the cell index.

After the secondary base station receives the secondary base station modification response message sent by the primary base station, the secondary base station needs to configure the secondary channel added by the secondary base station to perform the configuration of the air interface resource. Specifically, if the secondary base station modification response message includes the cell index allocated by the primary base station to the secondary base station, the secondary base station allocates the received cell index to each secondary cell in the first secondary cell, and is the first Each secondary cell in the secondary cell performs air resource allocation. Or, if the secondary base station modification response message includes the identifier of the first secondary cell and the corresponding cell index, the secondary base station configures the air interface resource for each secondary cell in the first secondary cell. After the primary base station configures the air interface resource for the first secondary cell, the air interface resource configuration information corresponding to the first secondary cell and the cell corresponding to the identifier of the first secondary cell are included in the air interface resource configuration information. The index and the air interface resource information corresponding to the identifier of the first secondary cell. Specifically, the sending, by the secondary base station, the air interface resource configuration information corresponding to the first secondary cell to the UE may be: the secondary base station directly sends the air interface resource configuration information corresponding to the first secondary cell to the UE by using the wireless air interface with the UE. For example, the secondary base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message carries the air interface resource configuration information corresponding to the first secondary cell. The sending, by the secondary base station, the air interface resource configuration information corresponding to the first secondary cell to the UE may be: the secondary base station sends the air interface resource configuration information corresponding to the first secondary cell to the primary base station, and the primary base station receives the air interface corresponding to the first secondary cell sent by the secondary base station. Resource configuration information and further forward the information to the UE. For example, the secondary base station may send the air interface resource configuration information corresponding to the first secondary cell to the primary base station in the SeNB Modification Request Acknowledge message (step S3033), and the primary base station sends an RRC reconfiguration message to the UE. The RRC reconfiguration message carries the air interface resource configuration information corresponding to the first secondary cell (step S3034). In FIG. 3, the secondary base station sends the air interface resource configuration information corresponding to the first secondary cell to the UE by using the primary base station.

Referring to the second case in FIG. 3, it corresponds to the second implementation manner described above. After receiving the modification request message sent by the secondary base station, the primary base station learns the first secondary cell that the secondary base station wants to add, and the primary base station allows the secondary base station to add a part of the secondary secondary cell in the first secondary cell, and allocates a cell index to the part of the secondary base station. (Step S3041). After the primary base station allocates the cell index to the secondary base station, the primary base station sends a secondary base station modification response message to the secondary base station, and the secondary base station receives the secondary base station modification response message sent by the primary base station (step S3042). The secondary base station modification response message includes a cell index allocated by the primary base station to the secondary base station, and the number of the cell index is smaller than the number of the second secondary cell. Further, if the primary base station allocates a corresponding cell index for each identifier in the identifier of the second secondary cell, the secondary base station modification response message includes, in addition to the cell index, a second secondary cell corresponding to each cell index. Logo. In this implementation manner, the primary base station performs binding of the cell identifier and the cell index. If the secondary base station modification response message does not include the correspondence between the cell index and the cell identifier, the secondary base station needs to determine the second secondary cell from the first secondary cell according to the number of the cell index after receiving the cell index sent by the primary base station. And binding the identifier of the second secondary cell to the received cell index one by one. In this implementation manner, the secondary base station performs binding of the cell identifier and the cell index. Further, the secondary base station modification response message further includes the number of secondary cells that the primary base station allows the secondary base station to increase. The secondary base station determines the second secondary cell from the first secondary cell according to the number of the secondary cells, and binds the identifier of the second secondary cell to the received cell index one by one. Further, the secondary base station modification response message may further include: the primary base station does not agree that the secondary base station increases all the first secondary cells.

After the secondary base station receives the secondary base station modification response message sent by the primary base station, the secondary base station needs to configure the air interface resource for the second secondary cell that the secondary base station adds to the secondary base station. Specifically, if the secondary base station modification response message includes the identifier of the second secondary cell and the cell index corresponding to the identifier of the second secondary cell, the secondary base station configures the air interface resource for the second secondary cell. If the secondary base station modification response message includes the number of secondary cells that the primary base station allows the secondary base station to increase and the cell index allocated by the primary base station, the secondary base station determines the second secondary cell according to the number of the secondary cells, and performs air interface for the second secondary cell. The configuration of the resource. If the secondary base station modification response message includes the cell index allocated by the primary base station, the secondary base station determines the second secondary cell according to the number of the cell index, and configures the air interface resource for the second secondary cell. After the secondary base station configures the air interface resource for the second secondary cell, the air interface resource configuration information corresponding to the second secondary cell and the cell corresponding to the identifier of the second secondary cell are included in the air interface resource configuration information. The index and the air interface resource information corresponding to the identifier of the second secondary cell. Specifically, the secondary base station sends the air interface resource configuration information corresponding to the second secondary cell to the UE, where the secondary base station directly sends the air interface resource configuration information corresponding to the second secondary cell to the UE by using the wireless air interface with the UE. For example, the secondary base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message carries the air interface resource configuration information corresponding to the second secondary cell. The sending, by the secondary base station, the air interface resource configuration information corresponding to the second secondary cell to the UE may be: the secondary base station sends the air interface resource configuration information corresponding to the second secondary cell to the primary base station, and the primary base station receives the air interface corresponding to the second secondary cell sent by the secondary base station. Resource configuration information, and the information is further forwarded to the UE. For example, the secondary base station may send the air interface resource configuration information corresponding to the second secondary cell to the primary base station in the reply secondary base station modification request response message (step S3043), and the primary base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message is sent. The air interface resource configuration information corresponding to the second secondary cell is carried in the network (step S3044). In FIG. 3, the secondary base station sends the air interface resource configuration information corresponding to the second secondary cell to the UE by using the primary base station.

Referring to the third case in FIG. 3, corresponding to the foregoing third implementation manner, after receiving the modification request message sent by the secondary base station, the primary base station learns the first secondary cell that the secondary base station wants to add, and the primary base station rejects the secondary base station to increase the secondary secondary cell. Request (step S3045). After determining that the cell index is not allocated to the first secondary cell, the primary base station sends a third message to the secondary base station, and the secondary base station receives the third message sent by the primary base station (step S3051), where the third message is used to indicate that the primary base station rejects the secondary base station. The request of the first secondary cell is increased. Further, the reason for the rejection may also be included in the third message. In some possible implementations, the third message may be a SeNB Modification Confirm message. FIG. 3 takes the third message as a secondary base station modification confirmation message as an example.

In some possible implementation manners, if the secondary base station modification request message includes the air interface resource configuration information configured by the secondary base station for the first secondary cell, the primary base station, after assigning the corresponding cell index to the identifier of the first secondary cell, The cell index of the first secondary cell, the cell identifier corresponding to the cell index of the first secondary cell, and the air interface resource configuration information are sent to the UE. For example, the primary base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message carries the air interface resource configuration information corresponding to the first secondary cell, and the primary base station requests the secondary base station to increase the cell index allocated by the secondary cell. Here, the air interface resource configuration information includes the identifier of the first secondary cell and the air interface resource information corresponding to the identifier of the first secondary cell. The UE receives the air interface resource configuration information and the cell index information sent by the primary base station, and binds the received cell index information and the air interface resource configuration information according to a predetermined rule, for example, the received cell index according to the ascending or descending manner. Bind with the air interface resource configuration information. The primary base station may further send the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell to the secondary base station, where the secondary base station receives the identifier of the first secondary cell sent by the primary base station and the first secondary cell Identify the corresponding cell index. For example, the primary base station carries the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell in the secondary base station modification request message and sends the information to the secondary base station. It should be noted that the primary base station sends the cell index of the first secondary cell, the cell identifier corresponding to the cell index of the first secondary cell, and the air interface resource configuration information to the UE, and the primary base station identifies the identifier of the first secondary cell and The execution sequence of the step of transmitting the cell index corresponding to the identifier of the first secondary cell to the secondary base station is not specifically limited. The primary base station may firstly use the cell index of the first secondary cell and the cell identifier corresponding to the cell index of the first secondary cell. And the air interface resource configuration information is sent to the UE, and the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell are sent to the secondary base station, or the primary base station first identifies the first secondary cell and the first The cell index corresponding to the identifier of the secondary cell is sent to the secondary base station, and the cell index of the first secondary cell, the cell identifier corresponding to the cell index of the first secondary cell, and the air interface resource configuration information are sent to the UE.

It should be noted that, for the foregoing second implementation manner, if the primary base station only allows the secondary base station to add some secondary cells in the first secondary cell, the primary base station may also reject the secondary base station to increase the request of the secondary cell.

In some possible implementation manners, if the primary base station allows the secondary base station to add the secondary cell, and the primary base station and the secondary base station adjust the capability negotiation of the UE, the primary base station needs to notify the secondary base station of the result of the post-update negotiation.

By implementing the embodiment of the present invention, the secondary base station may determine whether to increase the secondary cell based on the measurement report reported by the UE, and the secondary base station may trigger the process of adding the secondary cell, and the primary base station requests the secondary secondary station to allocate the secondary cell to allocate the cell index. Therefore, the secondary cell that is newly identified between the UE and the secondary base station is implemented, and the secondary base station allocates the corresponding air interface resource information for the newly added secondary cell, so that the user equipment can communicate with the newly added secondary cell to improve the throughput of the UE. .

FIG. 4 is a flowchart of another data transmission method according to an embodiment of the present invention. In the embodiment of the present invention, the secondary base station receives the measurement report reported by the UE, and sends the measurement report to the primary base station, where the primary base station determines whether the secondary base station adds the secondary cell, and the primary base station allocates the cell index to the secondary cells. The data transmission method includes but is not limited to the following steps.

S401: The secondary base station receives the measurement report sent by the user equipment.

S402: The secondary base station sends a first message to the primary base station, where the first message includes a measurement report.

In the embodiment of the present invention, the measurement report is a measurement report obtained by the UE for measuring the measurement configuration delivered by the secondary base station. In some possible implementation manners, the first message further includes one or more of the indication information that the secondary base station requests to increase the secondary cell, the number of secondary cells requested by the secondary base station, and the load information corresponding to the secondary cell included in the measurement report. . The indication information is used to indicate that the primary base station secondary base station needs to perform the secondary cell addition operation. The number of secondary cells is used to indicate the number of secondary cells that the primary base station secondary base station wants to increase.

The first message is used by the primary base station to add a secondary cell to the secondary base station according to the measurement report. It should be noted that, the first message is used by the primary base station to add a secondary cell to the secondary base station according to the measurement report: after receiving the first message sent by the secondary base station, the primary base station determines, according to the measurement report in the first message, the secondary message. Whether the base station needs to increase the secondary cell.

S403: The primary base station receives the first message sent by the secondary base station, and determines whether the secondary base station adds the secondary cell according to the measurement report in the first message.

In the embodiment of the present invention, the determining, by the primary base station, whether the secondary base station adds the secondary cell according to the measurement report in the first message includes but is not limited to the following two implementation manners. The first implementation manner is: the primary base station determines, according to the measurement report in the first message, that the secondary base station increases the secondary cell. The second implementation manner is: the primary base station determines, according to the measurement report in the first message, that the secondary base station does not increase the secondary cell. If the primary base station determines that the secondary base station can add the secondary cell, the primary base station may also allocate a cell index to the secondary base station.

For example, the primary base station may determine whether the secondary base station increases the secondary cell according to a preset policy (for example, according to the measurement report sent by the secondary base station and/or the load information of the secondary cell). Adding a secondary cell to the secondary base station means that the secondary base station increases the secondary cell to provide services for the UE. For example, the measurement report includes the measurement results of the three secondary cells on the secondary base station, and the measurement result may be RSRP, where the RSRP of the secondary cell 1 is -95 dBm, the RSRP of the secondary cell 2 is -105 dBm, and the RSRP of the secondary cell 3 It is -115dBm, and the cell load of the secondary cell 3 is heavy. Therefore, the primary base station can determine that the secondary base station can increase the secondary cell 1 and the secondary cell 2 to provide services for the UE according to the measurement report, so as to improve the throughput of the UE. If the cell load of the three secondary cells in the measurement result is heavy, the primary base station determines that the secondary base station does not increase the secondary cell. Certainly, the condition that the primary base station determines whether the secondary base station increases the secondary cell may be other conditions, which is not specifically limited in the embodiment of the present invention.

If the first message further includes the number of secondary cells requested by the secondary base station, the primary base station may, when determining the first secondary cell added by the secondary base station according to the measurement report, may be combined with the number of secondary cells requested by the secondary base station. judgment. For example, the cell that satisfies the condition includes the secondary cell 1, the secondary cell 2, and the secondary cell 3, but the number of secondary cells carried in the first message is two, and the primary base station is from the secondary cell 1, the secondary cell 2, and the secondary cell 3. Two first secondary cells to be added as secondary base stations are selected. The specific primary base station selects two secondary cells from the secondary cell 1, the secondary cell 2, and the secondary cell 3 as the primary secondary cell to be added, which is not specifically limited in the embodiment of the present invention. For example, the primary base station may be based on the secondary cell. 1. The respective RSRPs of the secondary cell 2 and the secondary cell 3 determine which two secondary cells are included in the first secondary cell. If the first message further includes the load information corresponding to the secondary cell included in the measurement report, the primary base station may determine the first secondary cell added by the secondary base station according to the measurement report, and may combine the load information corresponding to the secondary cell to make a decision. . For example, the cell that satisfies the condition includes the secondary cell 1, the secondary cell 2, and the secondary cell 3. However, if the load of the secondary cell 1 is too high, the primary base station selects the secondary cell 2 and the secondary cell 3 as the first secondary cell to be added by the secondary base station. Alternatively, if the loads of the secondary cell 1, the secondary cell 2, and the secondary cell 3 are too high, the primary base station determines that the secondary base station does not increase the secondary cell.

By implementing the embodiment of the present invention, the secondary base station may notify the primary base station of the measurement report reported by the UE, and the primary base station determines, according to the measurement report, whether the secondary base station performs the addition of the secondary cell, and the primary base station triggers the process of adding the secondary cell, and The primary base station allocates a cell index to the secondary cell that is requested by the secondary base station, so as to implement a newly added secondary cell between the UE and the secondary base station, and improve the throughput of the UE.

The data transmission method in the above two implementations will be described with reference to FIG. 5. The first message may be a SeNB Modification Required message. The following describes each step.

S501: The secondary base station receives the measurement report sent by the user equipment.

S502: The secondary base station sends a secondary base station modification request message to the primary base station, where the primary base station receives the secondary base station modification request message sent by the secondary base station.

The information included in the secondary base station modification request message may refer to the information included in the first message in the embodiment of the present invention, and details are not described herein again.

Referring to the first case in FIG. 5, it corresponds to the first implementation described above. After receiving the secondary base station modification request message sent by the secondary base station, the primary base station determines that the secondary base station adds the secondary cell according to the measurement report in the secondary base station modification request message. In the embodiment of the present invention, the primary base station determines that the secondary secondary station added by the secondary base station is named The first secondary cell, the number of the first secondary cell includes one or more. The primary base station allocates a cell index to each secondary cell in the first secondary cell (step S5031). The primary base station sends the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell to the secondary base station, and the secondary base station receives the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell. For example, the primary base station sends the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell to the secondary base station in the secondary base station modification request response message (step S5032).

After the secondary base station receives the secondary base station modification response message sent by the primary base station, the secondary base station needs to configure the first secondary cell added by the secondary base station to perform the configuration of the air interface resource. Specifically, the secondary base station performs air interface resource configuration for each secondary cell in the first secondary cell. After the primary base station configures the air interface resource for the first secondary cell, the air interface resource configuration information corresponding to the first secondary cell and the cell corresponding to the identifier of the first secondary cell are included in the air interface resource configuration information. The index and the air interface resource information corresponding to the identifier of the first secondary cell. Specifically, the sending, by the secondary base station, the air interface resource configuration information corresponding to the first secondary cell to the UE may be: the secondary base station directly sends the air interface resource configuration information corresponding to the first secondary cell to the UE by using the wireless air interface with the UE. For example, the secondary base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message carries the air interface resource configuration information corresponding to the first secondary cell. The sending, by the secondary base station, the air interface resource configuration information corresponding to the first secondary cell to the UE may be: the secondary base station sends the air interface resource configuration information corresponding to the first secondary cell to the primary base station, and the primary base station receives the air interface corresponding to the first secondary cell sent by the secondary base station. Resource configuration information and further forward this information to the UE. For example, the secondary base station may send the air interface resource configuration information corresponding to the first secondary cell to the primary base station in the reply secondary base station modification request response message (step S5033), and the primary base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message is sent. The air interface resource configuration information corresponding to the first secondary cell is carried in the process (step S5034). In FIG. 5, the secondary base station sends the air interface resource configuration information corresponding to the first secondary cell to the UE by using the primary base station.

Referring to the second case in FIG. 5, it corresponds to the second implementation manner described above. After receiving the secondary base station modification request message sent by the secondary base station, the primary base station determines, according to the measurement report in the secondary base station modification request message, that the secondary base station does not add the secondary cell (step S5041), and sends a third message to the secondary base station, where the third message is sent. And a request for instructing the primary base station to reject the secondary base station to add the secondary cell (step S5042). In some possible implementation manners, the reason for rejection may also be carried in the third message. In the embodiment of the present invention, the third message is used as a secondary base station modification confirmation message as an example for description.

By implementing the embodiment of the present invention, the secondary base station may notify the primary base station of the measurement report reported by the UE, and the primary base station determines, according to the measurement report, whether the secondary base station performs the addition of the secondary cell, and the primary base station triggers the process of adding the secondary cell, and The primary base station allocates a cell index to the secondary cell that the secondary base station requests to be added, so as to implement the newly added secondary cell between the UE and the secondary base station, and the secondary base station allocates the corresponding air interface resource information for the newly added secondary cell, so that the user equipment can The newly added secondary cell communicates to improve the throughput of the UE.

Based on the system architecture diagram described in FIG. 1 above, FIG. 6 is a flowchart of another data transmission method according to an embodiment of the present invention. In the embodiment of the present invention, the secondary base station receives the measurement report reported by the UE, determines whether to add the secondary cell based on the measurement report, and the secondary base station may allocate a cell index for the added secondary cell. The data transmission method includes but is not limited to the following steps.

S601: The secondary base station determines to add a first secondary cell to the user equipment, and allocates a cell index to the first secondary cell.

For a description of the method for the secondary base station to add the first secondary cell to the user equipment, reference may be made to the related description in the embodiment shown in FIG. 2, and details are not described herein again. The secondary base station allocates a cell index to each secondary cell in the first secondary cell. The number of the first secondary cells is one or more.

S602: The secondary base station configures the air interface resource for the first secondary cell.

S603: The secondary base station sends the generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes an identifier of the first secondary cell, a cell index of the first secondary cell, and air interface resource information of the first secondary cell.

In the embodiment of the present invention, the secondary base station may carry the air interface resource configuration information corresponding to the first secondary cell in the RRC reconfiguration message and send the information to the user equipment.

In some possible implementation manners, after the secondary base station allocates the cell index to the first secondary cell, the secondary base station further sends the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell to the primary base station, where the primary base station receives the information sent by the secondary base station. The identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell. For example, the secondary base station carries the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell in the secondary base station reconfiguration confirmation message, and sends the information to the primary base station (step S604), so as to notify the primary base station of the secondary base station to increase the secondary cell. The configuration takes effect on the user device side.

In the embodiment of the present invention, the primary base station and the secondary base station each maintain the cell index of the respective secondary cell, that is, the cell index is based on each cell group, and one cell is uniquely identified in one cell group. Therefore, the power headroom report (PHR) reporting format needs to be changed. That is, an indication information needs to be added to indicate whether the secondary cell corresponding to the cell index is a secondary cell on the primary base station or a secondary cell on the secondary base station. That is, in the existing PHR format, if the indexes of the different secondary cells allocated by the primary base station and the secondary base station are the same, the 1-bit reserved field is used to indicate whether the secondary base index is used by both the primary base station and the secondary base station, and 1 bit is used again. The reserved field is used to indicate whether the power reporting information corresponding to the secondary cell index is for the primary base station or for the secondary base station.

The PHR format can be seen in Figure 7. In FIG. 7, the F field is used to indicate whether the cell index is used by both the primary base station and the secondary base station. If the field is set to 1, it indicates that the cell index is used simultaneously by the primary base station and the secondary base station. If this field is set to 0, it means that the cell index is only used by one base station. T field: used to indicate whether the cell index indicates a primary base station or a secondary base station. If the field is set to 1, it indicates that the cell index indicates the secondary cell on the primary base station. If the field is set to 0, it indicates that the cell index indicates the secondary cell on the secondary base station. If the F field is set to 1, it indicates that the cell index is used by the primary base station and the secondary base station at the same time. In this case, the cell index corresponds to two power reporting information, including: for example, the T field is set to 0, indicating the power corresponding to the primary base station. The information is reported, and the T field is set to 1, indicating the power reporting information corresponding to the secondary base station. That is, if a cell index corresponds to F=1, the T=0 field must be followed by a field of F=1, T=1, as shown by field F and field T in FIG.

It should be noted that the order of execution of step S603 and step S604 is not specifically limited. Step S603 may be performed before step S604, or may be performed after step S604.

By implementing the embodiment of the present invention, the secondary base station may determine whether to increase the secondary cell according to the measurement report reported by the UE, and allocate, by the secondary base station, the cell index to the added secondary cell, so as to implement the identifier added between the UE and the secondary base station. The secondary cell improves the throughput of the UE.

In order to facilitate the implementation of the above data transmission method of the embodiment of the present invention, the present invention also provides a related device for implementing the above method.

FIG. 8 is a schematic structural diagram of a secondary base station according to an embodiment of the present invention. As shown in FIG. 8, the secondary base station 80 includes a processor 801, a memory 802, and a transceiver 803. The processor 801, the memory 802, and the transceiver 803 can be connected by a bus or other means.

In some possible implementation manners, the secondary base station 80 may further include a network interface 804 and a power module 805.

The processor 801 can be a digital signal processing (DSP) chip.

The memory 802 is used to store instructions, and the memory 802 can be a read-only memory (ROM) or a random access memory (RAM).

The transceiver 803 is configured to perform a transmission process (eg, modulation) on the mobile communication signal generated by the processor 801, and is also used to perform reception processing (eg, demodulation) on the mobile communication signal received by the antenna.

The network interface 804 is used by the secondary base station 80 for data communication with other devices. The network interface 804 can be a wired interface or a wireless interface.

The power module 805 is configured to supply power to each module of the secondary base station 80.

In the first solution of the embodiment of the present invention, the processor 801 is configured to invoke programs and data stored in the memory 802, and perform the following operations:

The processor 801 determines to add a first secondary cell to the user equipment;

The processor 801 controls the transceiver 803 to send a first message to the primary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell, where the first message is used to indicate The primary base station allocates a cell index to the first secondary cell.

In some possible implementation manners, the first message further includes indication information that the secondary base station requests to add a secondary cell.

In some possible implementations, the first message further includes air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information includes an identifier of the first secondary cell and the first secondary cell The identifier is corresponding to the air interface resource information; the first message is further used to indicate that the primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment.

In some possible implementation manners, the first message includes an identifier of the first secondary cell, and after the processor 801 controls the transceiver 803 to send the first message to the primary base station, the processor 801 is further configured to:

The control transceiver 803 receives the second message sent by the primary base station, where the second message includes the identifier of the second secondary cell that the primary base station allows the secondary base station to add, and the cell corresponding to the identifier of the second secondary cell. Indexing, the second secondary cell is part or all of the secondary cells in the first secondary cell;

Performing configuration of air interface resources for the second secondary cell.

In some possible implementations, after the processor 801 controls the transceiver 803 to send the first message to the primary base station, the processor 801 is further configured to:

The control transceiver 803 receives the second message sent by the primary base station, where the second message includes a cell index allocated by the primary base station to the secondary base station, where the number of the cell index is less than or equal to the first auxiliary The number of cells;

Determining, by the number of the cell index, the second secondary cell, assigning the received cell index to the second secondary cell, and configuring the air interface resource for the second secondary cell, where the second secondary The cell is part or all of the secondary cells in the first secondary cell.

The control transceiver 803 receives the second message sent by the primary base station, where the second message includes the number of secondary cells allowed by the primary base station to be added by the secondary base station, and the cell index allocated by the primary base station, where The number of cell indexes allocated by the primary base station is the same as the number of secondary cells that the primary base station allows the secondary base station to increase, and the number of the cell index is smaller than the number of the first secondary cells;

Determining, according to the number of the secondary cells, the second secondary cell, assigning the received cell index to the second secondary cell, and configuring the air interface resource for the second secondary cell, where the second secondary cell It is a part of the secondary cells in the first secondary cell.

In some possible implementations, after the processor 801 performs the configuration of the air interface resource for the second secondary cell, the processor 801 is further configured to:

The control transceiver 803 sends the air interface resource configuration information corresponding to the second secondary cell to the user equipment by using the primary base station;

Alternatively, the control transceiver 803 directly sends the air interface resource configuration information corresponding to the second secondary cell to the user equipment;

The air interface resource configuration information includes an identifier of the second secondary cell, a cell index of the second secondary cell, and air interface resource information of the second secondary cell.

The control transceiver 803 receives the third message sent by the primary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to add the first secondary cell.

It should be noted that the functions of the functional devices in the secondary base station 80 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding secondary base stations in the foregoing embodiment shown in FIG. 2 or FIG. 3, and details are not described herein again.

In the second solution of the embodiment of the present invention, the processor 801 is configured to invoke the program and data stored in the memory 802, and perform the following operations:

The processor 801 controls the transceiver 803 to receive the measurement report corresponding to the secondary base station sent by the user equipment;

The processor 801 controls the transceiver 803 to send a first message to the primary base station, where the first message includes the measurement report, where the first message is used by the primary base station to add a secondary cell to the secondary base station according to the measurement report. .

In some possible implementation manners, the first message further includes: the indication information that the secondary base station requests to increase the secondary cell, the number of secondary cells that the secondary base station requests to increase, and the secondary cell that is included in the measurement report. One or more of the load information.

The control transceiver 803 receives the second message sent by the primary base station, where the second message includes an identifier of the first secondary cell that the primary base station allows the secondary base station to add, and a cell index corresponding to the first secondary cell identifier. The first secondary cell includes one or more;

Performing configuration of air interface resources for the first secondary cell.

In some possible implementations, after the processor 801 performs the configuration of the air interface resource for the first secondary cell, the processor 801 is further configured to:

The control transceiver 803 sends the air interface resource configuration information corresponding to the first secondary cell to the user equipment by using the primary base station;

Or the control transceiver 803 directly sends the air interface resource configuration information corresponding to the first secondary cell to the user equipment;

The air interface resource configuration information includes an identifier of the first secondary cell, a cell index of the first secondary cell, and air interface resource information of the first secondary cell.

The control transceiver 803 receives the third message sent by the primary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to increase the secondary cell.

It should be noted that the functions of the functional modules in the secondary base station 80 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding secondary base stations in the foregoing embodiment shown in FIG. 4 or FIG. 5, and details are not described herein again.

In the third solution of the embodiment of the present invention, the processor 801 is configured to invoke the program and data stored in the memory 802, and perform the following operations:

The processor 801 determines to add a first secondary cell to the user equipment, and allocates a cell index to the first secondary cell;

The processor 801 performs the configuration of the air interface resource for the first secondary cell, and sends the generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes the identifier of the first secondary cell, and the a cell index of the first secondary cell and air interface resource information of the first secondary cell.

In some possible implementations, after the processor 801 allocates a cell index to the first secondary cell, the processor 801 is further configured to:

The control transceiver 803 sends the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell to the primary base station.

It should be noted that the functions of the functional modules in the secondary base station 80 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding secondary base stations in the foregoing embodiment shown in FIG.

FIG. 9 is a schematic structural diagram of a secondary base station according to an embodiment of the present invention. As shown in FIG. 9, the primary base station 90 includes a processor 901, a memory 902, and a transceiver 903. The processor 901, the memory 902, and the transceiver 903 can be connected by a bus or other means.

In some possible implementations, the primary base station 90 can also include a network interface 904 and a power module 905.

The processor 901 can be a DSP chip.

The memory 902 is used to store instructions, and the memory 902 may be in ROM or RAM or the like.

The transceiver 903 is configured to perform a transmission process (eg, modulation) on the mobile communication signal generated by the processor 901, and is also used to perform reception processing (eg, demodulation) on the mobile communication signal received by the antenna.

Network interface 904 is used by primary base station 90 for data communication with other devices. The network interface 904 can be a wired interface or a wireless interface.

The power module 905 is used to supply power to the various modules of the primary base station 90.

In the first solution of the embodiment of the present invention, the processor 901 is configured to invoke the program and data stored in the memory 902, and perform the following operations:

The processor 901 controls the transceiver 903 to receive the first message sent by the secondary base station, where the first message includes the identifier of the first secondary cell and/or the number of the first secondary cell that the secondary base station requests to increase;

The processor 901 determines, according to the first message, whether to allocate a cell index to the secondary base station.

In some possible implementations, the first message further includes air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information includes an identifier of the first secondary cell and the first secondary cell Corresponding to the air interface resource information, the processor 901 determines, according to the first message, whether to allocate a cell index to the secondary base station, including:

Allocating a cell index to the first secondary cell;

After the processor 901 allocates a cell index to the first secondary cell, the processor 901 is further configured to:

The control transceiver 903 sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment.

In some possible implementations, the first message includes an identifier of the first secondary cell, and the processor 901 determines, according to the first message, whether to allocate a cell index to the secondary base station, including:

Determining a second secondary cell that is allowed to be added by the secondary base station, and allocating a cell index to the second secondary cell, where the second secondary cell is a part or all of the secondary cells in the first secondary cell;

After the processor 901 allocates a cell index to the second secondary cell, the processor 901 is further configured to:

The control transceiver 903 sends a second message to the secondary base station, where the second message includes an identifier of the second secondary cell and a cell index corresponding to the identifier of the second secondary cell.

In some possible implementations, the determining, by the processor 901, whether to allocate a cell index to the secondary base station according to the first message includes:

Allocating a cell index to the secondary base station, where the number of the cell index is less than or equal to the number of the first secondary cell;

After the processor 901 allocates a cell index to the secondary base station, the processor 901 is further configured to:

The control transceiver 903 sends a second message to the secondary base station, where the second message includes the cell index.

Determining the number of the secondary cells that are added by the secondary base station, and allocating a cell index corresponding to the number of the secondary cells, where the number of the cell index is smaller than the number of the first secondary cells;

After the processor 901 allocates a cell index corresponding to the number of the secondary cells, the processor 901 is further configured to:

The control transceiver 903 sends a second message to the secondary base station, where the second message includes the cell index and the number of the secondary cells.

Determining to reject the request of the secondary base station to increase the first secondary cell;

After the processor 901 determines to reject the request of the secondary base station to add the first secondary cell, the processor 901 is further configured to:

The control transceiver 903 sends a third message to the secondary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to add the first secondary cell.

It should be noted that the functions of the functional devices in the primary base station 90 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding primary base stations in the foregoing embodiment shown in FIG. 2 or FIG. 3, and details are not described herein again.

In the second solution of the embodiment of the present invention, the processor 901 is configured to invoke the program and data stored in the memory 902, and perform the following operations:

The processor 901 controls the transceiver 903 to receive the first message sent by the secondary base station, where the first message includes a measurement report of the user equipment to the secondary base station.

The processor 901 determines, according to the first message, whether the secondary base station increases the secondary cell.

In some possible implementation manners, the determining, by the processor 901, whether the secondary base station adds a secondary cell according to the first message includes:

Determining, by the measurement report, the first secondary cell that is added by the secondary base station, and allocating a cell index to the first secondary cell, where the first secondary cell includes one or more;

The control transceiver 903 sends a second message to the secondary base station, where the second message includes an identifier of the first secondary cell and a cell index corresponding to the first secondary cell identifier.

Determining to reject the request of the secondary base station to increase the secondary cell;

After the processor 901 determines to reject the request of the secondary base station to add the secondary cell, the processor 901 is further configured to:

The control transceiver 903 sends a third message to the secondary base station, where the third message is used to indicate that the primary base station rejects the request of the secondary base station to add a secondary cell.

It should be noted that the functions of the functional modules in the primary base station 90 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding primary base stations in the foregoing embodiment shown in FIG. 4 or FIG. 5, and details are not described herein again.

In the third solution of the embodiment of the present invention, the processor 901 is configured to invoke the program and data stored in the memory 902, and perform the following operations:

The processor 901 controls the transceiver 903 to receive the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell, where the first secondary cell is determined to be added by the secondary base station to the user equipment. a cell, where the cell index is allocated by the secondary base station to the first secondary cell.

It should be noted that the functions of the functional modules in the primary base station 90 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding primary base stations in the foregoing embodiment shown in FIG.

FIG. 10 is a schematic structural diagram of another secondary base station according to an embodiment of the present invention. As shown in FIG. 10, the secondary base station 100 includes a processing unit 1001 and a communication unit 1002.

In the first solution of the embodiment of the present invention, the processing unit 1001 is configured to determine to add a first secondary cell to the user equipment;

The communication unit 1002 is configured to send a first message to the primary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell, where the first message is used to indicate The primary base station allocates a cell index to the first secondary cell.

In the present embodiment, the secondary base station 100 is presented in the form of a functional unit. A "unit" herein may refer to an application specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other devices that provide the functionality described above. The secondary base station 100 can take the form shown in FIG. The processing unit 1001 can be implemented by the processor 801 in FIG. 8, and the communication unit 1002 can be implemented by the transceiver 803 in FIG.

In some possible implementation manners, the first message includes an identifier of the first secondary cell, and the communication unit 1002 is configured to: after the first message is sent to the primary base station, the communication unit 1002 is further configured to receive the primary base station. And the second message, where the second message includes the identifier of the second secondary cell that is added by the primary base station and the cell index corresponding to the identifier of the second secondary cell, where the second secondary cell is Some or all of the secondary cells in the first secondary cell;

The processing unit 1001 is further configured to perform configuration of the air interface resource for the second secondary cell.

In some possible implementations, after the communication unit 1002 is configured to send the first message to the primary base station, the communication unit 1002 is further configured to receive the second message sent by the primary base station, where the second message includes the primary message. a cell index allocated by the base station to the secondary base station, where the number of the cell index is less than or equal to the number of the first secondary cell;

The processing unit 1001 is further configured to determine, according to the number of the cell index, the second secondary cell, allocate the received cell index to the second secondary cell, and perform air interface resources for the second secondary cell. The second secondary cell is configured to be part or all of the secondary cells in the first secondary cell.

In some possible implementations, after the communication unit 1002 is configured to send the first message to the primary base station, the communication unit 1002 is further configured to receive the second message sent by the primary base station, where the second message includes the primary message. The base station allows the number of secondary cells to be added by the secondary base station, and the cell index allocated by the primary base station, where the number of cell indexes allocated by the primary base station and the secondary cell that the primary base station allows the secondary base station to increase The number of the cell index is smaller than the number of the first secondary cell;

The processing unit 1001 is further configured to determine, according to the number of the secondary cells, the second secondary cell, allocate the received cell index to the second secondary cell, and configure the air interface resource for the second secondary cell. The second secondary cell is a part of the secondary cells in the first secondary cell.

In some possible implementations, after the processing unit 1001 is configured to perform the configuration of the air interface resource for the second secondary cell, the communication unit 1002 is further configured to: pass the air interface resource configuration information corresponding to the second secondary cell Sending to the user equipment by the primary base station;

Alternatively, the communication unit 1002 is further configured to directly send the air interface resource configuration information corresponding to the second secondary cell to the user equipment;

In some possible implementations, after the communication unit 1002 is configured to send the first message to the primary base station, the communication unit 1002 is further configured to receive a third message sent by the primary base station, where the third message is used to indicate the location The primary base station rejects the request of the secondary base station to increase the first secondary cell.

It should be noted that the functions of the functional modules in the secondary base station 100 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding secondary base stations in the foregoing embodiment shown in FIG. 2 or FIG. 3, and details are not described herein again.

In the second solution of the embodiment of the present invention, the communication unit 1002 is configured to receive a measurement report corresponding to the secondary base station sent by the user equipment;

The communication unit 1002 is further configured to send a first message to the primary base station, where the first message includes the measurement report, where the first message is used by the primary base station to add a secondary cell to the secondary base station according to the measurement report. .

In some possible implementations, after the communication unit 1002 is configured to send the first message to the primary base station, the communication unit 1002 is further configured to receive the second message sent by the primary base station, where the second message includes the primary message. The base station allows the identifier of the first secondary cell that is added by the secondary base station and the cell index corresponding to the first secondary cell identifier, where the first secondary cell includes one or more;

The processing unit 1001 is configured to configure the air interface resource for the first secondary cell.

In some possible implementations, after the processing unit 1001 is configured to perform the configuration of the air interface resource for the first secondary cell, the communication unit 1002 is further configured to: pass the air interface resource configuration information corresponding to the first secondary cell Sending to the user equipment by the primary base station;

Or the communication unit 1002 is further configured to send the air interface resource configuration information corresponding to the first secondary cell to the user equipment directly;

In some possible implementations, after the communication unit 1002 is configured to send the first message to the primary base station, the communication unit 1002 is further configured to receive a third message sent by the primary base station, where the third message is used to indicate the location The primary base station rejects the request of the secondary base station to increase the secondary cell.

It should be noted that the functions of the functional modules in the secondary base station 100 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding secondary base stations in the foregoing embodiment shown in FIG. 4 or FIG. 5, and details are not described herein again.

In a third aspect of the embodiment of the present invention, the processing unit 1001 is configured to determine to add a first secondary cell to the user equipment, and allocate a cell index to the first secondary cell;

The processing unit 1001 is further configured to: configure the air interface resource for the first secondary cell, and send the generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes the first secondary cell The identifier, the cell index of the first secondary cell, and the air interface resource information of the first secondary cell.

In some possible implementations, after the processing unit 1001 is configured to allocate a cell index to the first secondary cell, the communication unit 1002 is configured to send, by the primary base station, the identifier of the first secondary cell and the first secondary The cell index corresponding to the identity of the cell.

It should be noted that the functions of the functional modules in the secondary base station 100 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding secondary base stations in the foregoing embodiment shown in FIG.

FIG. 11 is a schematic structural diagram of another secondary base station according to an embodiment of the present invention. As shown in FIG. 11, the primary base station 110 includes a processing unit 1101 and a communication unit 1102.

In the first solution of the embodiment of the present invention, the communication unit 1102 is configured to receive a first message sent by the secondary base station, where the first message includes an identifier and/or a location of the first secondary cell that the secondary base station requests to increase. The number of the first secondary cells;

The processing unit 1101 is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station.

In the present embodiment, the primary base station 110 is presented in the form of a functional unit. A "unit" herein may refer to an ASIC, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other devices that provide the functionality described above. The primary base station 110 can take the form shown in FIG. The processing unit 1101 can be implemented by the processor 901 in FIG. 9, and the communication unit 1102 can be implemented by the transceiver 903 in FIG.

In some possible implementations, the first message further includes air interface resource configuration information corresponding to the first secondary cell, where the air interface resource configuration information includes an identifier of the first secondary cell and the first secondary cell Corresponding air interface resource information corresponding to the identifier; the processing unit 1101, configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including: allocating a cell index to the first secondary cell;

The processing unit 1101 is configured to: after the cell index is allocated to the first secondary cell, the communication unit 1102 is further configured to send the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment.

In some possible implementations, the first message includes an identifier of the first secondary cell, and the processing unit 1101 is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including:

The processing unit 1101 is configured to: after the cell index is allocated to the second secondary cell, the communication unit 1102 is further configured to send a second message to the secondary base station, where the second message includes an identifier of the second secondary cell and a cell index corresponding to the identifier of the second secondary cell.

In some possible implementations, the processing unit 1101 is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including:

The processing unit 1101 is configured to: after the cell index is allocated to the secondary base station, the communication unit 1102 is further configured to send a second message to the secondary base station, where the second message includes the cell index.

After the processing unit 1101 is configured to allocate a cell index corresponding to the number of the secondary cell, the communication unit 1102 is further configured to send a second message to the secondary base station, where the second message includes the cell index and The number of the secondary cells.

The processing unit 1101 is configured to determine, after determining that the secondary base station is requested to add the first secondary cell, the communication unit 1102 is further configured to send a third message, where the third message is used to indicate that the primary base station rejects the The secondary base station increases the request of the first secondary cell.

It should be noted that the functions of the functional modules in the primary base station 110 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding primary base stations in the foregoing embodiment shown in FIG. 2 or FIG. 3, and details are not described herein again.

In the second solution of the embodiment of the present invention, the communication unit 1102 is configured to receive a first message sent by the secondary base station, where the first message includes a measurement report of the user equipment to the secondary base station.

The processing unit 1101 is configured to determine, according to the first message, whether the secondary base station adds a secondary cell.

In some possible implementations, the processing unit 1101 is configured to determine, according to the first message, whether the secondary base station adds a secondary cell, including:

The processing unit 1101 is configured to: after the cell identifier is allocated to the first secondary cell, the communication unit 1102 is further configured to send a second message to the secondary base station, where the second message includes an identifier of the first secondary cell and The first secondary cell identifier corresponds to a cell index.

The processing unit 1101 is configured to determine, after determining that the secondary base station is configured to add a secondary cell, the communication unit 1102 is further configured to send a third message to the secondary base station, where the third message is used to indicate that the primary base station rejects the The secondary base station increases the request of the secondary cell.

It should be noted that the functions of the functional modules in the primary base station 110 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding primary base stations in the foregoing embodiment shown in FIG. 4 or FIG. 5, and details are not described herein again.

In the third solution of the embodiment of the present invention, the communication unit 1102 is configured to receive, by the secondary base station, an identifier of the first secondary cell and a cell index corresponding to the identifier of the first secondary cell, where the first secondary cell is The secondary base station determines a secondary cell that is added to the user equipment, where the cell index is allocated by the secondary base station to the first secondary cell.

It should be noted that the functions of the functional modules in the primary base station 110 described in the embodiments of the present invention can be referred to the related descriptions of the corresponding primary base stations in the foregoing embodiment of the present invention, and details are not described herein again.

The steps of the method or algorithm described in connection with the disclosure of the embodiments of the present invention may be implemented in a hardware manner, or may be implemented by a processor executing software instructions. The software instructions may be composed of corresponding software modules, which may be stored in RAM, flash memory, ROM, erasable programmable read only memory (EPROM), electrically erasable programmable read only memory (electrically EPROM, Abbreviation: EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in a primary base station or a secondary base station. Of course, the processor and the storage medium may also exist as discrete components in the primary or secondary base station.

Those skilled in the art should appreciate that in one or more of the above examples, the functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

The specific embodiments of the present invention have been described in detail with reference to the embodiments of the embodiments of the present invention. The scope of the present invention is defined by the scope of the present invention. Any modifications, equivalents, improvements, etc., which are included in the embodiments of the present invention, are included in the scope of the present invention.

Claims

A data transmission method, comprising:

The secondary base station determines to add a first secondary cell to the user equipment;

The second base station sends a first message to the primary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell, where the first message is used to indicate the primary message. The base station allocates a cell index to the first secondary cell.
The method according to claim 1, wherein the first message further comprises indication information that the secondary base station requests to add a secondary cell.
The method according to claim 1 or 2, wherein the first message further includes air interface resource configuration information corresponding to the first secondary cell, and the air interface resource configuration information includes an identifier of the first secondary cell And the air interface resource information corresponding to the identifier of the first secondary cell; the first message is further used to indicate that the primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the User equipment.
The method according to claim 1 or 2, wherein after the secondary base station sends the first message to the primary base station, the method further includes:

Receiving, by the secondary base station, the second message sent by the primary base station, where the second message includes a cell index allocated by the primary base station to the secondary base station, where the number of the cell index is less than or equal to the first auxiliary The number of cells;

The secondary base station determines the second secondary cell according to the number of the cell index, allocates the received cell index to the second secondary cell, and configures the air interface resource for the second secondary cell. The second secondary cell is part or all of the secondary cells in the first secondary cell;

Or the first message includes the identifier of the first secondary cell, and after the primary base station sends the first message to the primary base station, the method further includes:

Receiving, by the secondary base station, the second message sent by the primary base station, where the second message includes the identifier of the second secondary cell that the primary base station allows the secondary base station to add, and the cell corresponding to the identifier of the second secondary cell Indexing, the second secondary cell is part or all of the secondary cells in the first secondary cell;

The secondary base station configures the air interface resource for the second secondary cell.
A data transmission method, comprising:

Receiving, by the primary base station, the first message sent by the secondary base station, where the first message includes an identifier of the first secondary cell requested by the secondary base station and/or the number of the first secondary cell;

The primary base station determines, according to the first message, whether to allocate a cell index to the secondary base station.
The method according to claim 5, wherein the first message further comprises indication information that the secondary base station requests to add a secondary cell.
The method according to claim 5 or 6, wherein the first message further includes air interface resource configuration information corresponding to the first secondary cell, and the air interface resource configuration information includes an identifier of the first secondary cell And the air interface resource information corresponding to the identifier of the first secondary cell; the primary base station determining, according to the first message, whether to allocate a cell index to the secondary base station, including:

The primary base station allocates a cell index to the first secondary cell;

After the primary base station allocates a cell index to the first secondary cell, the method further includes:

The primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment.
The method according to claim 5 or 6, wherein the determining, by the primary base station, whether to allocate a cell index to the secondary base station according to the first message comprises:

The primary base station allocates a cell index to the secondary base station, where the number of the cell index is less than or equal to the number of the first secondary cell;

After the primary base station allocates a cell index to the secondary base station, the method further includes:

The primary base station sends a second message to the secondary base station, where the second message includes the cell index;

Or the first message includes an identifier of the first secondary cell, and the primary base station determines, according to the first message, whether to allocate a cell index to the secondary base station, including:

The primary base station determines a second secondary cell that is allowed to be added by the secondary base station, and allocates a cell index to the second secondary cell, where the second secondary cell is part or all of the secondary cells in the first secondary cell;

After the primary base station allocates a cell index to the second secondary cell, the method further includes:

The primary base station sends a second message to the secondary base station, where the second message includes an identifier of the second secondary cell and a cell index corresponding to the identifier of the second secondary cell.
A data transmission method, comprising:

Receiving, by the secondary base station, a measurement report corresponding to the secondary base station sent by the user equipment;

The secondary base station sends a first message to the primary base station, where the first message includes the measurement report, and the first message is used by the primary base station to add a secondary cell to the secondary base station according to the measurement report.
The method according to claim 9, wherein the first message further comprises: the indication information that the secondary base station requests to increase the secondary cell, the number of secondary cells that the secondary base station requests to increase, and the measurement report include One or more of the load information corresponding to the secondary cell.
The method according to claim 9 or 10, wherein after the sending, by the secondary base station, the first message to the primary base station, the method further includes:

Receiving, by the secondary base station, the second message sent by the primary base station, where the second message includes an identifier of the first secondary cell that the primary base station allows the secondary base station to add, and a cell index corresponding to the first secondary cell identifier. The first secondary cell includes one or more;

The secondary base station configures the air interface resource for the first secondary cell.
A data transmission method, comprising:

Receiving, by the primary base station, the first message sent by the secondary base station, where the first message includes a measurement report of the user equipment to the secondary base station;

The primary base station determines, according to the first message, whether the secondary base station adds a secondary cell.
The method according to claim 12, wherein the first message further comprises: the indication information that the secondary base station requests to increase the secondary cell, the number of secondary cells that the secondary base station requests to increase, and the measurement report include One or more of the load information corresponding to the secondary cell.
The method according to claim 12 or 13, wherein the determining, by the primary base station, whether the secondary base station adds a secondary cell according to the first message comprises:

Determining, by the primary base station, the first secondary cell that is added by the secondary base station, and allocating a cell index to the first secondary cell, where the first secondary cell includes one or more;

After the primary base station allocates a cell index to the first secondary cell, the method further includes:

The primary base station sends a second message to the secondary base station, where the second message includes an identifier of the first secondary cell and a cell index corresponding to the first secondary cell identifier.
A data transmission method, comprising:

The secondary base station determines to add a first secondary cell to the user equipment, and allocates a cell index to the first secondary cell;

The secondary base station performs the configuration of the air interface resource for the first secondary cell, and sends the generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes the identifier and location of the first secondary cell. a cell index of the first secondary cell and air interface resource information of the first secondary cell.
A secondary base station, the secondary base station includes: a processing unit and a communication unit;

The processing unit is configured to determine to add a first secondary cell to the user equipment;

The communication unit is configured to send a first message to the primary base station, where the first message includes an identifier of the first secondary cell and/or a number of the first secondary cell, where the first message is used to indicate The primary base station allocates a cell index to the first secondary cell.
The secondary base station according to claim 16, wherein the first message further includes indication information that the secondary base station requests to add a secondary cell.
The secondary base station according to claim 16 or 17, wherein the first message further includes air interface resource configuration information corresponding to the first secondary cell, and the air interface resource configuration information includes the first secondary cell The identifier and the air interface resource information corresponding to the identifier of the first secondary cell; the first message is further used to indicate that the primary base station sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the User equipment.
The secondary base station according to claim 16 or 17, wherein the communication unit is configured to receive the second message sent by the primary base station after the first message is sent to the primary base station. The second message includes a cell index allocated by the primary base station to the secondary base station, where the number of the cell index is less than or equal to the number of the first secondary cell;

The processing unit is further configured to determine, according to the number of the cell index, the second secondary cell, allocate the received cell index to the second secondary cell, and perform air interface resources for the second secondary cell. The second secondary cell is a part or all of the secondary cells in the first secondary cell;

Or the first message includes the identifier of the first secondary cell, and the communication unit is configured to receive the second message sent by the primary base station after the first message is sent to the primary base station. a message, the second message includes an identifier of a second secondary cell that is added by the primary base station, and a cell index corresponding to an identifier of the second secondary cell, where the second secondary cell is the first Some or all of the secondary cells in the secondary cell;

The processing unit is further configured to configure the air interface resource for the second secondary cell.
A primary base station, the primary base station includes: a processing unit and a communication unit;

The communication unit is configured to receive a first message sent by the secondary base station, where the first message includes an identifier of the first secondary cell and/or the number of the first secondary cell that the secondary base station requests to increase;

The processing unit is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station.
The primary base station according to claim 20, wherein the first message further comprises indication information that the secondary base station requests to add a secondary cell.
The primary base station according to claim 20 or 21, wherein the first message further includes air interface resource configuration information corresponding to the first secondary cell, and the air interface resource configuration information includes the first secondary cell The identifier and the air interface resource information corresponding to the identifier of the first secondary cell; the processing unit, configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including:

Allocating a cell index to the first secondary cell;

The processing unit, configured to: after the cell index is allocated to the first secondary cell, the communication unit is further configured to send the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user device.
The primary base station according to claim 20 or 21, wherein the processor is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including:

Allocating a cell index to the secondary base station, where the number of the cell index is less than or equal to the number of the first secondary cell;

After the processor allocates a cell index to the secondary base station, the communications unit is further configured to send a second message to the secondary base station, where the second message includes the cell index;

Or the first message includes an identifier of the first secondary cell, and the processing unit is configured to determine, according to the first message, whether to allocate a cell index to the secondary base station, including: determining to allow the secondary base station to increase a second secondary cell, and a cell index is allocated to the second secondary cell, where the second secondary cell is part or all of the secondary cells in the first secondary cell;

The processing unit, after the cell index is allocated to the second secondary cell, the communication unit is further configured to send a second message to the secondary base station, where the second message includes the second secondary cell And identifying a cell index corresponding to the identifier of the second secondary cell.
A secondary base station, the secondary base station includes: a processing unit and a communication unit;

The communication unit is configured to receive a measurement report corresponding to the secondary base station sent by the user equipment;

The communication unit is further configured to send a first message to the primary base station, where the first message includes the measurement report, where the first message is used by the primary base station to add a secondary device to the secondary base station according to the measurement report. Community.
The secondary base station according to claim 24, wherein the first message further includes: the indication information that the secondary base station requests to increase the secondary cell, the number of secondary cells that the secondary base station requests to increase, and the measurement report. One or more of the load information corresponding to the included secondary cell.
The secondary base station according to claim 24 or 25, wherein, after the communication unit is configured to send the first message to the primary base station, the communication unit is further configured to receive the second message sent by the primary base station. The second message includes an identifier of the first secondary cell that the primary base station allows to be added by the secondary base station, and a cell index corresponding to the first secondary cell identifier, where the first secondary cell includes one or more;

The processing unit is configured to perform air interface resource configuration for the first secondary cell.
A primary base station, the primary base station includes: a processing unit and a communication unit;

The communication unit is configured to receive a first message sent by the secondary base station, where the first message includes a measurement report of the user equipment to the secondary base station;

The processing unit is configured to determine, according to the first message, whether the secondary base station adds a secondary cell.
The primary base station according to claim 27, wherein the first message further includes: the indication information that the secondary base station requests to increase the secondary cell, the number of secondary cells that the secondary base station requests to increase, and the measurement report. One or more of the load information corresponding to the included secondary cell.
The primary base station according to claim 27 or 28, wherein the processing unit is configured to determine, according to the first message, whether the secondary base station adds a secondary cell, including:

Determining, by the primary base station, the first secondary cell that is added by the secondary base station, and allocating a cell index to the first secondary cell, where the first secondary cell includes one or more;

After the processing unit is configured to allocate a cell index to the first secondary cell, the communication unit is further configured to send a second message to the secondary base station, where the second message includes the first secondary cell And an identifier of the cell corresponding to the first secondary cell identifier.
A secondary base station, the secondary base station includes: a processing unit;

The processing unit is configured to determine to add a first secondary cell to the user equipment, and allocate a cell index to the first secondary cell;

The processing unit is further configured to: configure the air interface resource for the first secondary cell, and send the generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes the first secondary cell The identifier of the first secondary cell and the air interface resource information of the first secondary cell.