CN108810926B - Data transmission method and related equipment - Google Patents

Data transmission method and related equipment Download PDF

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Publication number
CN108810926B
CN108810926B CN201710311727.5A CN201710311727A CN108810926B CN 108810926 B CN108810926 B CN 108810926B CN 201710311727 A CN201710311727 A CN 201710311727A CN 108810926 B CN108810926 B CN 108810926B
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base station
cell
message
auxiliary
secondary cell
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CN108810926A (en
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刘菁
彭文杰
戴明增
郭轶
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2018/085517 priority patent/WO2018202105A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a data transmission method and related equipment, wherein the method comprises the following steps: the method comprises the steps that a secondary base station determines to add a first secondary cell for user equipment; and the secondary base station sends a first message to a main base station, wherein the first message comprises the identification of the first secondary cell and/or the number of the first secondary cells, and the first message is used for indicating the main base station to allocate a cell index for the first secondary cell. By implementing the embodiment of the invention, the process that the auxiliary base station triggers the auxiliary cell to increase is realized, and the throughput of the user equipment is improved.

Description

Data transmission method and related equipment
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a data transmission method and related equipment.
Background
The third generation partnership project (3 GPP) has proposed a need for small cell (small cell) enhancements in release 12(Rel-12), where a User Equipment (UE) may simultaneously transmit and receive data at two base stations, which is called a dual-connectivity (DC) architecture. Only one of the base stations is responsible for sending Radio Resource Control (RRC) messages to the UE and interacting with a Mobile Management Entity (MME) of a core network control plane, and is called a master evolved NodeB (MeNB), and another base station is called a secondary evolved NodeB (SeNB). The UE has a cell which is a primary cell (Pcell) of the UE at a main base station, the RRC message is sent to the UE through the primary cell, and other cells are secondary cells (Scell). One cell in the Scell of the secondary base station is the secondary base station primary cell (pScell). There is an uplink physical layer control channel on the pScell, and there is no uplink physical layer control channel on other scells. The cell group of the master 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, a primary base station triggers and adds a secondary cell of a secondary base station, in a fifth generation (5G) communication standard, a measurement report of the secondary base station is managed by the secondary base station, and meanwhile, the secondary base station may manage an addition operation of an SCell, but a specific flow of SCell addition triggered by the secondary base station is not given.
Disclosure of Invention
The embodiment of the invention provides a data transmission method and related equipment, which realize the process that an auxiliary base station triggers an auxiliary cell to increase and improve the throughput of user equipment.
The embodiment of the invention can be realized by the following technical scheme:
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 comprises the following steps: the secondary base station determines to add a first secondary cell for the user equipment. And the auxiliary base station sends a first message to the main base station, wherein the first message comprises the identification of the first auxiliary cell and/or the number of the first auxiliary cells, and the first message is used for indicating the main base station to allocate the cell index for the first auxiliary cell. In the embodiment of the invention, the auxiliary base station can autonomously determine whether to add the auxiliary cell, and can trigger the flow of the addition of the auxiliary cell, and the main base station allocates the cell index for the auxiliary cell which is requested to be added by the auxiliary base station, so that the newly added auxiliary cell is identified between the UE and the auxiliary base station, and the throughput of the UE is improved.
In one possible design, the first message further includes indication information that the secondary base station requests addition of the secondary cell.
In one possible design, 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 air interface resource information corresponding to the identifier of the first secondary cell. The first message is also used for indicating the main 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 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 the primary base station directly sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment after allocating the cell index to the first secondary cell.
In one possible design, the first message includes an identifier of a first secondary cell, after the secondary base station sends the first message to the primary base station, the secondary base station further receives a second message sent by the primary base station, the second message includes an identifier of a second secondary cell that the primary base station allows the secondary base station to add and a cell index corresponding to the identifier of the second secondary cell, and the second secondary cell is a part or all of the first secondary cells. And the auxiliary base station performs air interface resource configuration for the second auxiliary cell. In the embodiment of the invention, the main base station distributes the cell index for the second auxiliary cell, and binds the distributed cell index with the identifier of the second auxiliary cell without binding the auxiliary base station.
In one possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives a second message sent by the primary base station, where the second message includes cell indexes allocated by the primary base station to the secondary base station, and the number of the cell indexes is less than or equal to the number of the first secondary cells. And the secondary base station determines a second secondary cell according to the number of the cell indexes, allocates the received cell indexes to the second secondary cell, and configures air interface resources for the second secondary cell, wherein the second secondary cell is part or all of the first secondary cell. In the embodiment of the invention, the main base station distributes a certain number of cell indexes for the auxiliary cell, and sends the distributed cell indexes to the auxiliary base station, and the auxiliary base station binds the cell identification and the cell indexes.
In one possible design, after the secondary base station sends the first message to the main base station, the secondary base station further receives a second message sent by the main base station, where the second message includes the number of secondary cells that the main base station allows the secondary base station to increase and the cell index allocated by the main base station, where the number of cell indexes allocated by the main base station is the same as the number of secondary cells that the main base station allows the secondary base station to increase, and the number of cell indexes is smaller than the number of first secondary cells. And the auxiliary base station determines a second auxiliary cell according to the number of the auxiliary cells, allocates the received cell index to the second auxiliary cell, and configures air interface resources for the second auxiliary cell, wherein the second auxiliary cell is part of the first auxiliary cell. In the embodiment of the invention, the main base station distributes a certain number of cell indexes for the auxiliary cell, and sends the distributed cell indexes to the auxiliary base station, and the auxiliary base station binds the cell identification and the cell indexes.
In one possible design, after the auxiliary base station performs air interface resource configuration for the second auxiliary cell, the auxiliary base station further sends air interface resource configuration information corresponding to the second auxiliary cell to the user equipment through the main base station. Or, the auxiliary base station directly sends the air interface resource configuration information corresponding to the second auxiliary 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 one possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives a third message sent by the primary base station, where the third message is used to instruct the primary base station to reject the request of the secondary base station to add the first secondary cell.
In a second aspect, an embodiment of the present invention provides another data transmission method, which is applied to a master base station side. The method comprises the following steps: and the main base station receives a first message sent by the secondary base station, wherein the first message comprises the identifier of the first secondary cell and/or the number of the first secondary cells, which are requested to be added by the secondary base station. 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 invention, the auxiliary base station can autonomously determine whether to add the auxiliary cell, and can trigger the flow of the addition of the auxiliary cell, and the main base station allocates the cell index for the auxiliary cell which is requested to be added by the auxiliary base station, so that the newly added auxiliary cell is identified between the UE and the auxiliary base station, and the throughput of the UE is improved.
In one possible design, the first message further includes indication information that the secondary base station requests addition of the secondary cell.
In one possible design, 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 air interface resource information corresponding to the identifier of the first secondary cell. The main base station determines whether to allocate the cell index for the secondary base station according to the first message, and the method comprises the following steps: the primary base station allocates a cell index to the first secondary cell. After the main base station allocates the cell index to the first secondary cell, the main base station also 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 the primary base station directly sends the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment after allocating the cell index to the first secondary cell.
In one possible design, the first message includes an identifier of a first secondary cell, and the main base station determines whether to assign a cell index to the secondary base station according to the first message, including: and the main base station determines a second auxiliary cell which allows the auxiliary base station to increase, and allocates a cell index for the second auxiliary cell, wherein the second auxiliary cell is part or all of the first auxiliary cell. After the main base station distributes the cell indexes for the second auxiliary cell, the main base station also sends a second message to the auxiliary base station, wherein the second message comprises the identification of the second auxiliary cell and the cell indexes corresponding to the identification of the second auxiliary cell. In the embodiment of the invention, the main base station distributes the cell index for the second auxiliary cell, and binds the distributed cell index with the identifier of the second auxiliary cell without binding the auxiliary base station.
In one possible design, the determining, by the primary base station, whether to assign a cell index to the secondary base station according to the first message includes: and the main base station allocates cell indexes for the auxiliary base stations, and the number of the cell indexes is less than or equal to that of the first auxiliary cells. After the main base station allocates the cell index to the secondary base station, the main base station also sends a second message to the secondary base station, wherein the second message comprises the cell index. In the embodiment of the invention, the main base station distributes a certain number of cell indexes for the auxiliary cell, and sends the distributed cell indexes to the auxiliary base station, and the auxiliary base station binds the cell identification and the cell indexes.
In one possible design, the determining, by the primary base station, whether to assign a cell index to the secondary base station according to the first message includes: and the main base station determines the number of the auxiliary cells added by the auxiliary base station and distributes cell indexes with the number corresponding to the number of the auxiliary cells, wherein the number of the cell indexes is less than that of the first auxiliary cells. After the main base station distributes the cell indexes with the number corresponding to the number of the auxiliary cells, the main base station also sends a second message to the auxiliary base station, wherein the second message comprises the cell indexes and the number of the auxiliary cells. In the embodiment of the invention, the main base station distributes a certain number of cell indexes for the auxiliary cell, and sends the distributed cell indexes to the auxiliary base station, and the auxiliary base station binds the cell identification and the cell indexes.
In one possible design, the determining, by the primary base station, whether to assign a cell index to the secondary base station according to the first message includes: the primary base station determines to reject the request of the secondary base station to add the first secondary cell. After the main base station determines to reject the request of the auxiliary base station for increasing the first auxiliary cell, the main base station also sends a third message to the auxiliary base station, wherein the third message is used for indicating the main base station to reject the request of the auxiliary base station for increasing the first auxiliary 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 comprises the following steps: and the auxiliary base station receives a measurement report corresponding to the auxiliary base station sent by the user equipment. And the auxiliary base station sends a first message to the main base station, wherein the first message comprises a measurement report, and the first message is used for the main base station to add an auxiliary cell for the auxiliary base station according to the measurement report. In the embodiment of the invention, the auxiliary base station can inform the main base station of the measurement report reported by the UE, the main base station judges whether the auxiliary base station increases the auxiliary cell or not based on the measurement report, and the main base station allocates the cell index for the auxiliary cell which is requested to be increased by the auxiliary base station, so that the newly increased auxiliary cell is identified between the UE and the auxiliary base station, and the throughput of the UE is improved.
In one possible design, the first message further includes one or more of indication information that the secondary base station requests to add the secondary cell, the number of secondary cells that the secondary base station requests to add, and 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 secondary cells requested to be added by the secondary base station, the load information corresponding to the secondary cells included in the measurement report, and the like.
In one possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives a second message sent by the primary base station, where the second message includes an identifier of a first secondary cell that the primary base station allows the secondary base station to add and a cell index corresponding to the identifier of the first secondary cell, and the first secondary cell includes one or more cells. And the auxiliary base station performs air interface resource configuration for the first auxiliary cell.
In one possible design, after the auxiliary base station performs air interface resource configuration for the first auxiliary cell, the auxiliary base station further sends air interface resource configuration information corresponding to the first auxiliary cell to the user equipment through the main base station. Or, the auxiliary base station directly sends the air interface resource configuration information corresponding to the first auxiliary cell to the user equipment. The air interface resource configuration information includes an identifier of the first auxiliary cell, a cell index of the first auxiliary cell, and air interface resource information of the first auxiliary cell.
In one possible design, after the secondary base station sends the first message to the primary base station, the secondary base station further receives a third message sent by the primary base station, where the third message is used to instruct the primary base station to reject the request of the secondary base station for adding the secondary cell.
In a fourth aspect, an embodiment of the present invention provides another data transmission method, which is applied to a master base station side. The method comprises the following steps: and the main base station receives a first message sent by the auxiliary base station, wherein the first message comprises a measurement report of the system to which the auxiliary base station belongs by the user equipment. And the main base station determines whether the auxiliary base station increases the auxiliary cell or not according to the first message. In the embodiment of the invention, the auxiliary base station can inform the main base station of the measurement report reported by the UE, the main base station judges whether the auxiliary base station increases the auxiliary cell or not based on the measurement report, and the main base station allocates the cell index for the auxiliary cell which is requested to be increased by the auxiliary base station, so that the newly increased auxiliary cell is identified between the UE and the auxiliary base station, and the throughput of the UE is improved.
In one possible design, the first message further includes one or more of indication information that the secondary base station requests to add the secondary cell, the number of secondary cells that the secondary base station requests to add, and 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 secondary cells requested to be added by the secondary base station, the load information corresponding to the secondary cells included in the measurement report, and the like.
In one possible design, the determining, by the primary base station, whether the secondary base station adds the secondary cell according to the first message includes: and the main base station determines a first auxiliary cell added by the auxiliary base station according to the measurement report, and allocates a cell index to the first auxiliary cell, wherein the first auxiliary cell comprises one or more cells. After the main base station allocates the cell index to the first auxiliary cell, the main base station also sends a second message to the auxiliary base station, wherein the second message comprises the identifier of the first auxiliary cell and the cell index corresponding to the identifier of the first auxiliary cell.
In one possible design, the determining, by the primary base station, whether the secondary base station adds the secondary cell according to the first message includes: the primary base station determines to reject the request of the secondary base station to add the secondary cell. After the main base station determines to reject the request of the auxiliary base station for increasing the auxiliary cell, the main base station also sends a third message to the auxiliary base station, wherein the third message is used for indicating the main base station to reject the request of the auxiliary base station for increasing the auxiliary cell.
In a fifth aspect, an embodiment of the present invention provides another data transmission method, which is applied to a secondary base station. The method comprises the following steps: 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. And the auxiliary base station configures the air interface resources for the first auxiliary cell, and directly sends the generated air interface resource configuration information to the user equipment, wherein the air interface resource configuration information comprises the identifier of the first auxiliary cell, the cell index of the first auxiliary cell and the air interface resource information of the first auxiliary cell. In the embodiment of the invention, the auxiliary base station can autonomously determine whether to add the auxiliary cell, and the auxiliary base station allocates the cell index for the added auxiliary cell, so that the newly added auxiliary cell is identified between the UE and the auxiliary base station, and the throughput of the UE is improved.
In one 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 increased secondary cell identifier and cell index to the primary base station.
In a sixth aspect, an embodiment of the present invention provides another data transmission method, which is applied to a master base station side. The method comprises the following steps: the main base station receives an identifier of a first auxiliary cell and a cell index corresponding to the identifier of the first auxiliary cell, wherein the identifier of the first auxiliary cell is sent by the auxiliary base station, the first auxiliary cell is an auxiliary cell which is determined by the auxiliary base station to be added for the user equipment, and the cell index is distributed to the first auxiliary cell by the auxiliary base station. In the embodiment of the invention, the auxiliary base station can autonomously determine whether to add the auxiliary cell, and the auxiliary base station allocates the cell index for the added auxiliary cell, so that the newly added auxiliary cell is identified between the UE and the auxiliary base station, and the throughput of the UE is improved.
In a seventh aspect, an 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 in the first aspect, so that the beneficial effects of the data transmission method in the first aspect can also be achieved. The functions of the auxiliary base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above-described 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 a user equipment; the communication unit is configured to send a first message to the master base station, where the first message includes an identifier of the first secondary cell and/or the number of the first secondary cells, and the first message is used to instruct the master base station to allocate a cell index to the first secondary cell.
In one possible design, the first message further includes indication information that the secondary base station requests addition of the secondary cell.
In one possible design, 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 air interface resource information corresponding to the identifier of the first secondary cell; the first message is also used for indicating the main 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 one possible design, the first message includes an identifier of a first secondary cell, the communication unit is configured to, after sending the first message to the primary base station, receive a second message sent by the primary base station, where the second message includes an identifier of a second secondary cell that the primary base station allows the secondary base station to add and a cell index corresponding to the identifier of the second secondary cell, and the second secondary cell is a part or all of the first secondary cells; and the processing unit is further configured to configure air interface resources for the second secondary cell.
In one possible design, the communication unit is configured to receive a second message sent by the main base station after sending the first message to the main base station, where the second message includes a cell index allocated by the main base station for the secondary base station, and the number of the cell indexes is less than or equal to the number of the first secondary cells; and the processing unit is further configured to determine a second secondary cell according to the number of the cell indexes, allocate the received cell indexes to the second secondary cell, and perform configuration of air interface resources for the second secondary cell, where the second secondary cell is part or all of the first secondary cells.
In one possible design, after sending the first message to the main base station, the communication unit is further configured to receive a second message sent by the main base station, where the second message includes the number of secondary cells that the main base station allows the secondary base station to add and a cell index allocated by the main base station, where the number of cell indexes allocated by the main base station is the same as the number of secondary cells that the main base station allows the secondary base station to add, and the number of cell indexes is smaller than the number of first secondary cells; and the processing unit is further configured to determine a second secondary cell according to the number of the secondary cells, allocate the received cell index to the second secondary cell, and configure an air interface resource for the second secondary cell, where the second secondary cell is part of the secondary cells in the first secondary cell.
In one possible design, the processing unit is configured to perform configuration of an air interface resource for the second secondary cell, and the communication unit is further configured to send air interface resource configuration information corresponding to the second secondary cell to the user equipment through the primary base station; or directly sending the air interface resource configuration information corresponding to the second auxiliary 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 one possible design, the communication unit is configured to receive a third message sent by the master base station after sending the first message to the master base station, where the third message is used to instruct the master base station to reject the request of the slave base station to add the first slave cell.
In an eighth aspect, an embodiment of the present invention further provides a master base station, where the master base station implements the function of the master base station in the data transmission method in the second aspect, so that the beneficial effects of the data transmission method in the second aspect can also be achieved. The functions of the main base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above-described functions.
In one possible design, the master base station includes a processing unit and a communication unit. The communication unit is used for receiving a first message sent by the secondary base station, wherein the first message comprises an identifier of a first secondary cell and/or the number of the first secondary cells, which are requested to be added by the secondary base station; and the processing unit is used for determining whether to allocate the cell index for the secondary base station according to the first message.
In one possible design, the first message further includes indication information that the secondary base station requests addition of the secondary cell.
In one possible design, 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 air interface resource information corresponding to the identifier of the first secondary cell; a processing unit, configured to determine whether to allocate a cell index to a secondary base station according to a first message, including: allocating a cell index to the first secondary cell; and the processing unit is used for allocating the cell index to the first auxiliary cell, and then the communication unit is also used for sending the allocated cell index and the air interface resource allocation information sent by the auxiliary base station to the user equipment.
In one possible design, the first message includes an identification of the first secondary cell, and the processing unit is configured to determine whether to assign a cell index to the secondary base station according to the first message, and includes: determining a second auxiliary cell which allows the auxiliary base station to increase, and allocating a cell index to the second auxiliary cell, wherein the second auxiliary cell is part or all of the first auxiliary cell; and 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 second secondary cell and the cell index corresponding to the identifier of the second secondary cell.
In one possible design, the processing unit configured to determine whether to assign a cell index to the secondary base station according to the first message includes: distributing cell indexes for the secondary base stations, wherein the number of the cell indexes is less than or equal to that of the first secondary cells; and the communication unit is used for sending a second message to the secondary base station after the secondary base station is allocated with the cell index, wherein the second message comprises the cell index.
In one possible design, the processing unit configured to determine whether to assign a cell index to the secondary base station according to the first message includes: determining the number of the auxiliary cells added by the auxiliary base station, and distributing cell indexes with the number corresponding to the number of the auxiliary cells, wherein the number of the cell indexes is smaller than that of the first auxiliary cells; and the communication unit is used for sending a second message to the secondary base station, wherein the second message comprises the cell index and the number of the secondary cells.
In one possible design, the processing unit configured to determine whether to assign a cell index to the secondary base station according to the first message includes: determining to reject a request of the secondary base station for increasing the first secondary cell; and the communication unit is further configured to send a third message to the secondary base station, where the third message is used to instruct the primary base station to reject the request of the secondary base station for adding the first secondary cell.
In a ninth aspect, an 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 according to the third aspect, so that the beneficial effects of the data transmission method according to the third aspect can also be achieved. The functions of the auxiliary base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above-described functions.
In one possible design, the secondary base station includes a processing unit and a communication unit. The communication unit is used for receiving a measurement report corresponding to the secondary base station sent by the user equipment; and the communication unit is further used for sending a first message to the main base station, wherein the first message comprises a measurement report, and the first message is used for the main base station to add a secondary cell to the secondary base station according to the measurement report.
In one possible design, the first message further includes one or more of indication information that the secondary base station requests to add the secondary cell, the number of secondary cells that the secondary base station requests to add, and load information corresponding to the secondary cell included in the measurement report.
In one possible design, after sending 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 an identifier of a first secondary cell that the primary base station allows the secondary base station to add and a cell index corresponding to the identifier of the first secondary cell, and the first secondary cell includes one or more cells; and the processing unit is used for configuring air interface resources for the first auxiliary cell.
In one possible design, the processing unit is configured to perform configuration of an air interface resource for the first secondary cell, and the communication unit is further configured to send air interface resource configuration information corresponding to the first secondary cell to the user equipment through the primary base station; or directly sending the air interface resource configuration information corresponding to the first auxiliary cell to the user equipment; the air interface resource configuration information includes an identifier of the first auxiliary cell, a cell index of the first auxiliary cell, and air interface resource information of the first auxiliary cell.
In one possible design, the communication unit is configured to receive a third message sent by the primary base station after sending the first message to the primary base station, where the third message is used to instruct the primary base station to reject the request of the secondary base station to add the secondary cell.
In a tenth aspect, an embodiment of the present invention further provides another master base station, where the master base station implements the function of the master base station in the data transmission method according to the fourth aspect, so that the beneficial effects of the data transmission method according to the fourth aspect can also be achieved. The functions of the main base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above-described functions.
In one possible design, the master base station includes a processing unit and a communication unit. The communication unit is used for receiving a first message sent by the auxiliary base station, wherein the first message comprises a measurement report of a system to which the auxiliary base station belongs by user equipment; and the processing unit is used for determining whether the secondary base station increases the secondary cell or not according to the first message.
In one possible design, the first message further includes one or more of indication information that the secondary base station requests to add the secondary cell, the number of secondary cells that the secondary base station requests to add, and load information corresponding to the secondary cell included in the measurement report.
In one possible design, the processing unit configured to determine whether the secondary base station adds the secondary cell according to the first message includes: determining a first auxiliary cell added by the auxiliary base station according to the measurement report, and allocating a cell index to the first auxiliary cell, wherein the first auxiliary cell comprises one or more cells; and 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 cell index corresponding to the identifier of the first secondary cell.
In one possible design, the processing unit configured to determine whether the secondary base station adds the secondary cell according to the first message includes: determining to reject the request of the auxiliary base station for increasing the auxiliary cell; the processing unit, configured to determine to reject the request of the secondary base station for adding the secondary cell, further includes: and the communication unit is further used for sending a third message to the secondary base station, wherein the third message is used for indicating the main base station to reject the request of the secondary base station for adding the secondary cell.
In an eleventh aspect, an 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 according to the fifth aspect, so that the beneficial effects of the data transmission method according to the fifth aspect can also be achieved. The functions of the auxiliary base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above-described functions.
In one possible design, the secondary base station includes a processing unit and a communication unit. The processing unit is used for determining that a first auxiliary cell is added to the user equipment and allocating a cell index to the first auxiliary cell; the processing unit is further configured to configure an air interface resource for the first auxiliary cell, and directly send the generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes an identifier of the first auxiliary cell, a cell index of the first auxiliary cell, and air interface resource information of the first auxiliary cell.
In one possible design, after allocating the cell index to the first secondary cell, the communication unit is configured to send the identity of the first secondary cell and the cell index corresponding to the identity of the first secondary cell to the master base station.
In a twelfth aspect, an embodiment of the present invention further provides another master base station, where the master base station implements the function of the master base station in the data transmission method according to the sixth aspect, so that the beneficial effects of the data transmission method according to the sixth aspect can also be achieved. The functions of the main base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above-described functions.
In one possible design, the master base station includes a communication unit. The communication unit is configured to receive an identifier of a first secondary cell and a cell index corresponding to the identifier of the first secondary cell, where the identifier of the first secondary cell is sent by a secondary base station, the first secondary cell is a secondary cell determined by the secondary base station to be added to the user equipment, and the cell index is allocated to the first secondary cell by the secondary base station.
In a thirteenth aspect, an 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 first aspect, so that the beneficial effects of the data transmission method in the first aspect can also be achieved. The functions of the auxiliary base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above functions. The secondary base station comprises a transceiver and a processor, and the functions corresponding to the communication unit and the processing unit in the secondary base station of the seventh aspect are respectively realized.
In a fourteenth aspect, an embodiment of the present invention further provides another master base station, where the master base station implements the function of the master base station in the data transmission method according to the second aspect, so that the beneficial effects of the data transmission method according to the second aspect can also be achieved. The functions of the main base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above functions. The secondary base station includes a transceiver and a processor, and implements the functions corresponding to the communication unit and the processing unit in the main base station of the above eighth aspect, respectively.
In a fifteenth aspect, an 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 according to the third aspect, so that the beneficial effects of the data transmission method according to the third aspect can also be achieved. The functions of the auxiliary base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above functions. The secondary base station includes a transceiver and a processor, which respectively implement the corresponding functions of the communication unit and the processing unit in the secondary base station of the ninth aspect.
In a sixteenth aspect, an embodiment of the present invention further provides another master base station, where the master base station implements the function of the master base station in the data transmission method according to the fourth aspect, so that the beneficial effects of the data transmission method according to the fourth aspect can also be achieved. The functions of the main base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above functions. The main base station includes a transceiver and a processor, and implements functions corresponding to the communication unit and the processing unit in the main base station according to the tenth aspect, respectively.
In a seventeenth aspect, an 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 according to the fifth aspect, so that the beneficial effects of the data transmission method according to the fifth aspect can also be achieved. The functions of the auxiliary base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above functions. The secondary base station comprises a transceiver and a processor, which respectively implement the corresponding functions of the communication unit and the processing unit in the secondary base station of the eleventh aspect.
In an eighteenth aspect, an embodiment of the present invention further provides another master base station, where the master base station implements the function of the master base station in the data transmission method according to the fourth aspect, so that the beneficial effects of the data transmission method according to the fourth aspect can also be achieved. The functions of the main base station may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes at least one module corresponding to the above functions. The master base station includes transceivers that implement functions corresponding to the communication units in the master base station of the twelfth aspect described above, respectively.
In a nineteenth aspect, an embodiment of the present invention further provides a communication system, including: auxiliary base station and main base station, wherein: the secondary base station is the secondary base station of the seventh, ninth, eleventh, thirteenth, fifteenth or seventeenth aspect, and the master base station is the master base station of the eighth, tenth, twelfth, fourteenth, sixteenth or eighteenth aspect.
In a twentieth aspect, embodiments of the present invention provide a computer storage medium for storing computer software instructions for a secondary base station as described in the first aspect, the instructions, when executed by the secondary base station, causing the secondary base station to perform the method as described in the first aspect; or, for storing computer software instructions for a secondary base station as described in the third aspect above, which instructions, when executed by the secondary base station, cause the secondary base station to perform the method as described in the third aspect above; or, for storing computer software instructions for a secondary base station as described in the fifth aspect above, which instructions, when executed by the secondary base station, cause the secondary base station to perform the method as described in the fifth aspect above.
In a twenty-first aspect, an embodiment of the present invention provides another computer storage medium for storing computer software instructions for a master base station according to the above second aspect, which when executed by the master base station, cause the master base station to perform the method according to the above second aspect; or, for storing computer software instructions for a master base station as described in the fourth aspect above, which instructions, when executed by the master base station, cause the master base station to perform the method as described in the fourth aspect above; or, for storing computer software instructions for a secondary base station as described in the sixth aspect above, which instructions, when executed by the primary base station, cause the primary base station to perform the method as described in the sixth aspect above.
In a twenty-second aspect, an embodiment of the invention provides a computer program comprising computer software instructions which, when executed by the secondary base station, cause the secondary base station to perform the method of the first aspect; alternatively, the program comprises computer software instructions which, when executed by the secondary base station, cause the secondary base station to perform the method of the third aspect described above; alternatively, the program comprises computer software instructions which, when executed by the secondary base station, cause the secondary base station to perform the method of the fifth aspect as described above.
In a twenty-third aspect, embodiments of the present invention provide another computer program comprising computer software instructions which, when executed by the main base station, cause the main base station to perform the method of the second aspect described above; alternatively, the program comprises computer software instructions which, when executed by the main base station, cause the main base station to perform the method of the fourth aspect described above; alternatively, the program comprises computer software instructions which, when executed by the main base station, cause the main base station to perform the method as described in the sixth aspect above.
Drawings
Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present invention;
fig. 2 is a flowchart of a data transmission method according to an embodiment of the present invention;
fig. 3 is a flowchart of another data transmission method provided in the embodiment of the present invention;
fig. 4 is a flowchart of another data transmission method provided in the embodiment of the present invention;
fig. 5 is a flowchart of another data transmission method provided in the embodiment of the present invention;
fig. 6 is a flowchart of another data transmission method provided in the embodiment of the present invention;
FIG. 7 is a diagram illustrating a PHR format according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a secondary base station according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a main base station according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another secondary base station according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another master base station according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, which is a schematic diagram of an architecture of a communication system according to an embodiment of the present invention, the communication system 100 includes a main base station (MeNB)101 providing basic network coverage 110, and one or more secondary base stations (SeNB)102 (an example of a secondary base station is shown) respectively providing relatively small network coverage 120 (indicated by reverse oblique lines). A User Equipment (UE)103 within the common coverage area of the primary base station 101 and the secondary base station 102 will be able to establish a communication connection with both the primary base station 101 and a corresponding secondary base station, such as the secondary base station 102.
Here, a case where one User Equipment (UE) has simultaneous connections with one main base station and one or more secondary base stations is referred to as dual connection or multi-connection. In the following description, embodiments of the present invention are described by taking as an example a case where a UE (e.g., UE103) has dual connectivity with one master base station (e.g., master base station 101) and one 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 connectivity 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 include, but are not limited to: a base station NodeB, an evolved base station eNodeB, a base station in a 5G communication system, a base station in a future communication system, or a network device. The UE may also be referred to as a Terminal, a Mobile Station (MS), a Mobile Terminal (MT), etc. The UE may communicate with one or more core networks through a Radio Access Network (RAN), or may access a distributed network through a self-organizing or unauthorized manner, and may also access a wireless network through other manners to communicate, which is not limited in the embodiment of the present invention.
In a dual connectivity architecture, one architecture is: the main base station 101 and the MME have S1 signaling connection, the auxiliary base station 102 and the MME do not have S1 signaling connection, and the auxiliary base station 102 performs signaling interaction with the MME through the main base station 101. In the user plane, the primary base station 101 and the secondary base station 102 both have a user plane connection of S1 with a Serving Gateway (SGW), so that the SGW can transmit different services of the UE to the UE through the primary base station 101 and the secondary base station 102, respectively. The other architecture is as follows: the main base station 101 and the SGW have user plane connection of S1, the secondary base station 102 and the SGW do not have user plane connection of S1, the SGW sends all data of the UE to the main base station 101, the main base station 101 performs shunting of UE service data, and different data packets of the same service of the UE are sent to the UE through the main base station 101 and the secondary base station 102 respectively.
In a Long Term Evolution (LTE) system, a measurement report of a UE for an auxiliary base station 102 is reported to a main base station 101, and the main base station 101 determines whether to add an auxiliary cell to the auxiliary base station 102 according to the measurement report, so as to provide a transmission service for the UE103 and improve the throughput of the UE. In the embodiment of the present invention, the secondary base station 102 and the UE103 are connected via a wireless air interface, the UE103 may report a measurement report for a system to which the secondary base station 102 belongs to the secondary base station 102, and after obtaining the measurement report, the secondary base station 102 may autonomously determine whether an additional cell is needed, thereby triggering an additional process of the secondary cell.
Based on the system architecture diagram described in fig. 1, fig. 2 is a flowchart of a data transmission method according to an embodiment of the present invention. In the embodiment of the invention, the auxiliary base station determines to add the auxiliary cells according to the measurement report reported by the UE, and the main base station allocates the cell indexes for the auxiliary cells. 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 for the user equipment.
In this embodiment of the present invention, the first secondary cell refers to a set of secondary cells requested to be added by the secondary base station, where the first secondary cell includes one or more secondary cells. Before determining that a first auxiliary cell is added to the UE, the auxiliary base station sends a measurement report to the auxiliary base station, the auxiliary base station receives the measurement report sent by the UE, and the measurement report is obtained by measuring the measurement configuration sent by the UE to the auxiliary base station. The secondary base station determines whether to add a secondary cell according to a preset strategy (for example, according to a measurement report and/or cell load information reported by the UE). For example, the measurement report includes measurement results of three secondary cells on the secondary base station, which may be Reference Signal Received Power (RSRP), wherein RSRP of secondary cell 1 is-95 dBm, RSRP of secondary cell 2 is-105 dBm, and RSRP of secondary cell 3 is-115 dBm, but cell load of secondary cell 3 is heavier, so the secondary base station may determine that secondary cell 1 and secondary cell 2 may be increased to provide service for the UE, so as to improve throughput of the UE.
S202: and the auxiliary base station sends a first message to the main base station, wherein the first message comprises the identification of the first auxiliary cell and/or the number of the first auxiliary cells.
In some possible embodiments, the first message includes an identification of the first secondary cell. The main base station can know which one or more secondary cells the secondary base station wants to add according to the identification. In some possible embodiments, the first message includes a number of the first secondary cells. The main base station can know that the secondary base station wants to increase a plurality of secondary cells according to the number. In some possible embodiments, the first message includes an identification of the first secondary cell and a number of the first secondary cells. The main base station can know the auxiliary cells which the auxiliary base station wants to add and which one or more auxiliary cells the auxiliary base station wants to add according to the identification and the number.
Wherein, the identity of the secondary cell includes but is not limited to: a Physical Cell Identifier (PCI), an Evolved Cell Global Identifier (ECGI), an Absolute Radio Frequency Channel Number (ARFCN), or the like. The secondary base station may request to add one or more secondary cells, and if the secondary base station requests to add a plurality of secondary cells, the identifier of the secondary cell is an identifier list.
The first message is used for indicating the main base station to allocate the cell index for the first auxiliary cell. It should be noted that, the meaning of the first message for instructing the master base station to allocate the cell index for the first secondary cell is as follows: after receiving a first message sent by the auxiliary base station, the main base station learns a first auxiliary cell which the auxiliary base station wants to add according to the first message, and if the main base station agrees with the request of the auxiliary base station, the main base station allocates a cell index for the first auxiliary cell; if the main base station only agrees that the auxiliary base station increases part of the auxiliary cells in the first auxiliary cell, the main base station only allocates cell indexes for the part of the auxiliary cells; if the main base station rejects the request of the auxiliary base station, the main base station does not allocate the cell index to the auxiliary base station.
In some possible embodiments, the first message further includes indication information that the secondary base station requests to add the secondary cell, and the indication information is used for indicating that the primary base station and the secondary base station need to perform secondary cell addition operation.
In some possible embodiments, 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 also used for indicating the main 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. The air interface resource configuration information includes an identifier of the first auxiliary cell and air interface resource information corresponding to the identifier of the first auxiliary cell. The air interface resource information includes but is not limited to: data Radio Bearer (DRB) configuration parameters, air interface resource configuration parameters, and the like. It should be noted that the meaning that the first message is further used to instruct the main 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 is as follows: after receiving the first message sent by the secondary base station, the main base station learns the first secondary cell which the secondary base station wants to add according to the first message, if the main base station agrees with the request of the secondary base station, the main base station allocates a cell index for the first secondary cell, and sends the air interface configuration information sent by the secondary base station and the cell index allocated by the main base station to the user equipment.
S203: and the main base station receives a first message sent by the secondary base station and determines whether to allocate a cell index to the secondary base station according to the first message.
In the embodiment of the invention, the main base station determines whether to allocate the cell index to the secondary base station according to the received first message. The main base station determining whether to allocate the cell index for the secondary base station according to the first message includes, but is not limited to, the following three implementations. The first implementation mode comprises the following steps: the primary base station learns that the secondary base station requests to increase the first secondary cell according to the received first message, and the primary base station determines to allow the secondary base station to increase all secondary cells in the first secondary cell, so that the primary base station needs to allocate cell indexes to all secondary cells in the first secondary cell. The second implementation mode comprises the following steps: the main base station learns that the auxiliary base station requests to increase the first auxiliary cell according to the received first message, but the main base station only allows the auxiliary base station to increase part of auxiliary cells in the first auxiliary cell, and the main base station only needs to allocate cell indexes to the part of auxiliary cells. In the embodiment of the present invention, the secondary cell that the primary base station allows the secondary base station to add is represented by a second secondary cell. In a second implementation manner, the second secondary cell is a part of the secondary cells in the first secondary cell. In a first implementation, the second secondary cells are all secondary cells in the first secondary cell. The third implementation mode comprises the following steps: and the main base station learns that the auxiliary base station requests to increase the first auxiliary cell according to the received first message, but the main base station refuses the request of the auxiliary base station for increasing the auxiliary cell, so that the main base station does not need to allocate a cell index for the first auxiliary cell. The following describes these three implementations separately.
In a first implementation, the primary base station allocates corresponding cell indexes 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 to each identifier. Or the main base station receives the auxiliary cell increase request of the auxiliary base station and allocates the cell indexes with the same number as the first auxiliary cells to the auxiliary base station. 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 as the number of identifiers to the secondary base station according to the number of identifiers. Or, if the first message includes the number of the first secondary cells, the main base station allocates the same number of cell indexes as the number according to the number.
For example, the first message includes an identifier 001 of the secondary cell 1, an identifier 002 of the secondary cell 2, and an identifier 003 of the secondary cell 3, and the primary base station allows the secondary base station to add all the secondary cells, and then the primary base station allocates cell indexes to the secondary cell 1, the secondary cell 2, and the secondary cell 3 respectively, 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, and the primary base station allocates 3 cell indexes to the secondary base station according to the number of the identifiers. Or, if the first message includes the number 3 of the first secondary cells, the primary base station allocates 3 cell indexes to the secondary base station.
In a second implementation, the primary base station allocates a corresponding cell index only 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 part of the secondary cells in the first secondary cell, the primary base station selects the identifiers of part of the secondary cells from the identifier of the first secondary cell to allocate corresponding cell indexes, and the selected part of the secondary cells are determined as the second secondary cells, and the primary base station allocates the cell indexes corresponding to the identifiers of the second secondary cells. Or the main base station only allows the auxiliary base station to add part of the auxiliary cells and allocates the same number of cell indexes as the part of the auxiliary cells to the auxiliary base station. Or, if the first message includes the identifier of the first secondary cell, the main base station may determine that the secondary base station wants to add several secondary cells according to the number of the identifier, and if the main base station only allows the secondary base station to add some secondary cells, the main base station determines the number of the some 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 cells, the main base station may determine that the secondary base station wants to add several secondary cells according to the number, and if the main base station only allows the secondary base station to add some secondary cells, the main base station determines the number of the some secondary cells and allocates the same number of cell indexes as the number to the secondary base station.
For example, the first message includes an identifier 001 of the secondary cell 1, an identifier 002 of the secondary cell 2, and an identifier 003 of the secondary cell 3, and the primary base station only allows the secondary base station to add the secondary cell 1 and the secondary cell 2, so that the primary base station only allocates corresponding cell indexes to the secondary cell 1 and the secondary cell 2, for example, 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, and the primary base station allocates the same number of cell indexes as the number of secondary cells to the secondary base station according to the number of secondary cells that the secondary base station is only allowed to increase. Or, if the first message includes the number of the first secondary cells 3 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 example, 01 and 02, to the secondary base station.
In a third implementation manner, if the primary base station rejects the secondary base station to add the first secondary cell, the primary base station does not allocate a cell index to the secondary base station, and notifies the rejection reason to the secondary base station.
By implementing the embodiment of the invention, the auxiliary base station can determine whether to add the auxiliary cell based on the measurement report reported by the UE, and the auxiliary base station can trigger the flow of adding the auxiliary cell, and the main base station allocates the cell index for the auxiliary cell which is requested to be added by the auxiliary base station, thereby realizing the identification of the newly added auxiliary cell between the UE and the auxiliary base station and improving the throughput of the UE.
Further, after allocating the cell index to the secondary base station, the primary base station needs to send the allocated cell index to the secondary base station. The data transmission method in the above three implementations is described with reference to fig. 3. The first message may be a secondary base station Modification request (SeNB Modification Required) message. The respective steps are described in detail below.
S301, the secondary base station determines to add a first secondary cell for the user equipment.
S302, the auxiliary base station sends an auxiliary base station modification request message to the main base station, and the main base station receives the auxiliary base station modification request message sent by the auxiliary base station.
The information included in the secondary base station modification request message may refer to the information included in the first message, and is not described herein again.
See the first case in fig. 3, corresponding 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). The main base station transmits a secondary base station modification response message to the secondary base station after assigning the cell index to the secondary base station, and the secondary base station receives the secondary base station modification response message transmitted by the main base station (step S3032). The secondary base station modification response message comprises cell indexes allocated by the main base station for the secondary base station, and the number of the cell indexes is equal to that of the first secondary cells. Further, if the primary base station allocates a corresponding cell index to each of the identifiers of the first secondary cells, the secondary base station modification response message needs to include the identifiers of the first secondary cells corresponding to the respective cell indexes in addition to the cell indexes. In this implementation, the binding of the cell identity and the cell index is performed by the master base station. If the secondary base station modification response message does not include the corresponding relationship between the cell index and the cell identifier, the secondary base station needs to bind the identifier of the first secondary cell with the received cell index one by one after receiving the cell index sent by the main base station. In this implementation, the secondary base station performs the 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 main base station, the secondary base station needs to configure air interface resources for a secondary cell which is allowed to be added by the secondary base station for the main base station. Specifically, if the secondary base station modification response message includes a cell index allocated by the primary base station for the secondary base station, the secondary base station allocates the received cell index to each secondary cell in the first secondary cell, and performs configuration of an air interface resource for each secondary cell in the first secondary cell. Or, if the secondary base station modification response message includes the identifier of the first secondary cell and the cell index corresponding to the identifier, the secondary base station performs configuration of air interface resources for each secondary cell in the first secondary cell. After configuring the air interface resource for the first auxiliary cell, the auxiliary base station sends air interface resource configuration information corresponding to the first auxiliary cell to the UE, where the air interface resource configuration information includes an identifier of the first auxiliary cell, a cell index corresponding to the identifier of the first auxiliary cell, and air interface resource information corresponding to the identifier of the first auxiliary cell. Specifically, the sending, by the auxiliary base station, the air interface resource configuration information corresponding to the first auxiliary cell to the UE may be: and the auxiliary base station directly sends the air interface resource configuration information corresponding to the first auxiliary cell to the UE through a wireless air interface between the auxiliary base station and 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 auxiliary base station, the air interface resource configuration information corresponding to the first auxiliary cell to the UE may also be: and the main base station receives the air interface resource configuration information corresponding to the first auxiliary cell sent by the auxiliary base station and further forwards the information to the UE. For example, the secondary base station may send, to the primary base station, the air interface resource configuration information corresponding to the first secondary cell, which is carried in a secondary base station Modification Request response (SeNB Modification Request acknowledgement) reply message (step S3033), where the primary base station sends, to the UE, an RRC reconfiguration message, which 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 through the primary base station as an example.
Referring to the second case in fig. 3, the second implementation manner is corresponded. 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 if the primary base station allows the secondary base station to add a part of secondary cells in the first secondary cell, the primary base station allocates cell indexes to the part of secondary base stations (step S3041). The primary base station transmits a secondary base station modification response message to the secondary base station after assigning the cell index to the secondary base station, and the secondary base station receives the secondary base station modification response message transmitted by the primary base station (step S3042). The secondary base station modification response message comprises cell indexes allocated by the main base station for the secondary base station, and the number of the cell indexes is smaller than that of the second secondary cells. Further, if the primary base station allocates a corresponding cell index to each of the identifiers of the second secondary cells, the secondary base station modification response message needs to include the identifiers of the second secondary cells corresponding to the respective cell indexes in addition to the cell indexes. In this implementation, the binding of the cell identity and the cell index is performed by the master base station. If the secondary base station modification response message does not include the corresponding relationship between the cell index and the cell identifier, after receiving the cell index sent by the main base station, the secondary base station needs to determine a second secondary cell from the first secondary cell according to the number of the cell indexes, and bind the identifier of the second secondary cell with the received cell index one by one. In this implementation, the secondary base station performs the binding of the cell identifier and the cell index. Further, the secondary base station modification response message also includes the number of secondary cells that the primary base station allows the secondary base station to increase. And the auxiliary base station determines a second auxiliary cell from the first auxiliary cell according to the number of the auxiliary cells, and binds the identifier of the second auxiliary cell with the received cell index one by one. Further, the secondary base station modification response message may further include a reason why the primary base station does not agree with the secondary base station to add all the first secondary cells.
After the secondary base station receives the secondary base station modification response message sent by the main base station, the secondary base station needs to configure air interface resources for a second secondary cell which is allowed to be added by the secondary base station for the main 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 performs air interface resource configuration for the second secondary cell. And if the secondary base station modification response message comprises the number of the secondary cells which are allowed to be increased by the primary base station and the cell index distributed by the primary base station, the secondary base station determines a second secondary cell according to the number of the secondary cells and configures air interface resources for the second secondary cell. And if the secondary base station modification response message comprises the cell index distributed by the main base station, the secondary base station determines a second secondary cell according to the number of the cell indexes and performs air interface resource configuration for the second secondary cell. And after configuring the air interface resource for the second auxiliary cell, the auxiliary base station sends air interface resource configuration information corresponding to the second auxiliary cell to the UE, wherein the air interface resource configuration information comprises an identifier of the second auxiliary cell, a cell index corresponding to the identifier of the second auxiliary cell and air interface resource information corresponding to the identifier of the second auxiliary cell. Specifically, the sending, by the auxiliary base station, the air interface resource configuration information corresponding to the second auxiliary cell to the UE may be: and the auxiliary base station directly sends the air interface resource configuration information corresponding to the second auxiliary cell to the UE through a wireless air interface between the auxiliary base station and the UE. For example, the secondary base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message carries air interface resource configuration information corresponding to the second secondary cell. The sending, by the auxiliary base station to the UE, the air interface resource configuration information corresponding to the second auxiliary cell may also be: and the auxiliary base station sends the air interface resource configuration information corresponding to the second auxiliary cell to the main base station, and the main base station receives the air interface resource configuration information corresponding to the second auxiliary cell sent by the auxiliary base station and further forwards the information to the UE. For example, the secondary base station may carry the air interface resource configuration information corresponding to the second secondary cell in a reply secondary base station modification request response message and send the reply secondary base station modification request response message to the primary base station (step S3043), where 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 second secondary cell (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 through the primary base station as an example.
Referring to the third case in fig. 3, corresponding to the 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 request of the secondary base station for adding the secondary cell (step S3045). After determining that the cell index is not allocated to the first secondary cell, the primary base station transmits a third message to the secondary base station, and the secondary base station receives the third message transmitted by the primary base station (step S3051), where the third message is used to instruct the primary base station to reject the request of the secondary base station for adding the first secondary cell. Further, the third message may further include a reject reason. In some possible embodiments, the third message may be a secondary base station Modification acknowledgement (SeNB Modification Confirm) message. Fig. 3 illustrates the third message as the secondary enb modification confirmation message.
In some possible embodiments, if the secondary base station modification request message includes air interface resource configuration information configured by the secondary base station for the first secondary cell, 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 after allocating the corresponding cell index to the identifier of the first secondary cell. For example, the main base station sends an RRC reconfiguration message to the UE, where the RRC reconfiguration message carries air interface resource configuration information corresponding to the first secondary cell, and a cell index that the main base station requests the secondary base station to add secondary cell allocation. Here, 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 UE receives the air interface resource configuration information and the cell index information sent by the main base station, and binds the received cell index information and the air interface resource configuration information according to a predetermined rule, for example, binds the received cell index and the air interface resource configuration information in an ascending or descending manner. Then, 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, 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 sent by the primary base station. 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 secondary base station modification request message to the primary base station. It should be noted that the step of the master base station sending 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 step of the master base station sending the identifier of the first secondary cell and the cell identifier corresponding to the identifier of the first secondary cell to the secondary base station are not specifically limited in execution order, the master base station may first send 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 then 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, or, the main 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 then 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.
It should be noted that, for the second implementation manner, if the main base station only allows the secondary base station to add part of the secondary cells in the first secondary cell, the main base station may also reject the request of the secondary base station to add the secondary cell.
In some possible embodiments, if the primary base station allows the secondary base station to add a secondary cell, which results in adjustment of capability negotiation between the primary base station and the secondary base station corresponding to the UE, the primary base station needs to notify the secondary base station of the updated negotiation result.
By implementing the embodiment of the invention, the auxiliary base station can determine whether to add the auxiliary cell based on the measurement report reported by the UE, and the auxiliary base station can trigger the flow of adding the auxiliary cell, and the main base station allocates the cell index for the auxiliary cell which is requested to be added by the auxiliary base station, so that the new auxiliary cell is identified between the UE and the auxiliary base station, and the auxiliary base station allocates the corresponding air interface resource information for the newly added auxiliary cell, so that the user equipment can communicate with the newly added auxiliary cell, and the throughput of the UE is improved.
Based on the system architecture diagram described in fig. 1, fig. 4 is a flowchart of another data transmission method according to an embodiment of the present invention. In the embodiment of the invention, the secondary base station receives the measurement report reported by the UE, sends the measurement report to the main base station, determines whether the secondary base station adds the secondary cells or not by the main base station, and allocates the cell indexes for the secondary cells by the main base station. The data transmission method includes, but is not limited to, the following steps.
S401: and the secondary base station receives the measurement report sent by the user equipment.
S402: and the auxiliary base station sends a first message to the main base station, wherein the first message comprises a measurement report.
In the embodiment of the invention, the measurement report is obtained by measuring the measurement configuration issued by the UE aiming at the auxiliary base station. In some possible embodiments, the first message further includes one or more of indication information that the secondary base station requests to add the secondary cell, the number of secondary cells that the secondary base station requests to add, and load information corresponding to the secondary cell included in the measurement report. The indication information is used for indicating that the main base station and the secondary base station need to perform secondary cell addition operation. The number of the secondary cells is used for indicating the number of the secondary cells which the main base station and the secondary base station want to increase.
The first message is used for the main base station to add the secondary cell for the secondary base station according to the measurement report. It should be noted that the meaning of the first message used by the primary base station to add the secondary cell to the secondary base station according to the measurement report is as follows: after receiving the first message sent by the secondary base station, the main base station judges whether the secondary base station needs to add a secondary cell according to the measurement report in the first message.
S403: and the main base station receives a first message sent by the auxiliary base station and determines whether the auxiliary base station increases the auxiliary cell or not according to the measurement report in the first message.
In the embodiment of the present invention, the main base station determines whether the secondary base station adds the secondary cell according to the measurement report in the first message, which includes but is not limited to the following two implementation manners. The first implementation mode comprises the following steps: and the main base station determines that the secondary base station increases the secondary cell according to the measurement report in the first message. The second implementation mode comprises the following steps: and the main base station determines that the auxiliary base station does not increase the auxiliary cell according to the measurement report in the first message. If the main base station determines that the auxiliary base station can increase the auxiliary cell, the main base station can also allocate a cell index to the auxiliary base station.
For example, the primary base station may determine whether the secondary base station adds the secondary cell according to a preset strategy (e.g., according to a measurement report transmitted by the secondary base station and/or load information of the secondary cell). Adding the secondary cell to the secondary base station means that the secondary base station adds the secondary cell to provide service for the UE. For example, the measurement report includes measurement results of three secondary cells on the secondary base station, where the measurement results may be RSRP, where RSRP of the secondary cell 1 is-95 dBm, RSRP of the secondary cell 2 is-105 dBm, RSRP of the secondary cell 3 is-115 dBm, and cell load of the secondary cell 3 is heavy, so the primary base station may determine, according to the measurement report, that the secondary base station may increase the secondary cell 1 and the secondary cell 2 to provide service for the UE, so as to improve throughput of the UE. And if the cell loads of the three auxiliary cells in the measurement result are all heavier, the main base station determines that the auxiliary base station does not increase the auxiliary cells. Of course, the condition that the main base station determines whether the secondary base station adds the secondary cell may also be other conditions, and the embodiment of the present invention is not particularly limited.
If the first message further includes the number of the secondary cells requested to be increased by the secondary base station, the primary base station may make a decision by combining the number of the secondary cells requested to be increased by the secondary base station when determining the first secondary cell to be increased by the secondary base station according to the measurement report. For example, the cells meeting the condition include the secondary cell 1, the secondary cell 2, and the secondary cell 3, but the number of the secondary cells carried in the first message is 2, and then the primary base station selects two of the secondary cell 1, the secondary cell 2, and the secondary cell 3 as the first secondary cells to be added by the secondary base station. Specifically, the main base station selects two cells from the secondary cell 1, the secondary cell 2, and the secondary cell 3 as the first secondary cells to be added by the secondary base station according to what rule, and the embodiment of the present invention is not specifically limited, for example, the main base station may determine which two secondary cells the first secondary cell includes according to the RSRP of each of the secondary cell 1, the secondary cell 2, and the secondary cell 3. If the first message further includes the load information corresponding to the secondary cell included in the measurement report, the main base station may make a decision by combining the load information corresponding to the secondary cell when determining the first secondary cell added by the secondary base station according to the measurement report. For example, the cells satisfying the condition include the secondary cell 1, the secondary cell 2, and the secondary cell 3, but 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. Or, if the loads of the secondary cell 1, the secondary cell 2 and the secondary cell 3 are all too high, the main base station determines that the secondary base station does not increase the secondary cell.
By implementing the embodiment of the invention, the auxiliary base station can inform the main base station of the measurement report reported by the UE, the main base station judges whether the auxiliary base station increases the auxiliary cell or not based on the measurement report, the main base station triggers the flow of the auxiliary cell increase, and the main base station allocates the cell index for the auxiliary cell which is requested to be increased by the auxiliary base station, thereby realizing the identification of the newly added auxiliary cell between the UE and the auxiliary base station and improving the throughput of the UE.
The data transmission method in the above two implementations is described with reference to fig. 5. The first message may be a secondary base station Modification request (SeNB Modification Required) message. The following is a description of each step.
S501: and the secondary base station receives the measurement report sent by the user equipment.
S502: and the auxiliary base station sends an auxiliary base station modification request message to the main base station, and the main base station receives the auxiliary base station modification request message sent by the auxiliary 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, which is not described herein again.
See the first case in fig. 5, corresponding to the first implementation described above. In the embodiment of the invention, the auxiliary cells determined by the main base station and added by the auxiliary base station are named as first auxiliary cells, and the number of the first auxiliary cells comprises one or more than one. The master base station allocates a cell index for each of the first secondary cells (step S5031). The main base station sends the identification of the first auxiliary cell and the cell index corresponding to the identification of the first auxiliary cell to the auxiliary base station, and the auxiliary base station receives the identification of the first auxiliary cell sent by the main base station and the cell index corresponding to the identification of the first auxiliary cell. 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 response message and sends the secondary base station modification request response message to the primary base station (step S5032).
After the secondary base station receives the secondary base station modification response message sent by the main base station, the secondary base station needs to configure air interface resources for a first secondary cell which is allowed to be added by the secondary base station for the main base station. Specifically, the secondary base station performs configuration of air interface resources for each secondary cell in the first secondary cell. After configuring the air interface resource for the first auxiliary cell, the auxiliary base station sends air interface resource configuration information corresponding to the first auxiliary cell to the UE, where the air interface resource configuration information includes an identifier of the first auxiliary cell, a cell index corresponding to the identifier of the first auxiliary cell, and air interface resource information corresponding to the identifier of the first auxiliary cell. Specifically, the sending, by the auxiliary base station, the air interface resource configuration information corresponding to the first auxiliary cell to the UE may be: and the auxiliary base station directly sends the air interface resource configuration information corresponding to the first auxiliary cell to the UE through a wireless air interface between the auxiliary base station and 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 auxiliary base station, the air interface resource configuration information corresponding to the first auxiliary cell to the UE may also be: and the main base station receives the air interface resource configuration information corresponding to the first auxiliary cell sent by the auxiliary base station and further forwards the information to the UE. For example, the secondary base station may carry the air interface resource configuration information corresponding to the first secondary cell in a reply secondary base station modification request response message and send the reply secondary base station modification request response message to the primary base station (step S5033), and 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 (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 through the primary base station as an example.
Referring to the second case in fig. 5, the second implementation manner is corresponded to. 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 does not add the secondary cell according to the measurement report in the secondary base station modification request message (step S5041), and sends a third message to the secondary base station, where the third message is used to instruct the primary base station to reject the request of the secondary base station for adding the secondary cell (step S5042). In some possible embodiments, the reject reason may also be carried in the third message. In the embodiment of the present invention, the third message is taken as an example of a secondary base station modification acknowledgement message for explanation.
In some possible embodiments, if the primary base station allows the secondary base station to add a secondary cell, which results in adjustment of capability negotiation between the primary base station and the secondary base station corresponding to the UE, the primary base station needs to notify the secondary base station of the updated negotiation result.
By implementing the embodiment of the invention, the auxiliary base station can inform the main base station of the measurement report reported by the UE, the main base station judges whether the auxiliary base station increases the auxiliary cell or not based on the measurement report, the main base station triggers the flow of the auxiliary cell increase, and the main base station allocates the cell index for the auxiliary cell which is requested to be increased by the auxiliary base station, so that the newly added auxiliary cell is identified between the UE and the auxiliary base station, and the auxiliary base station is the air interface resource information corresponding to the newly added auxiliary cell, so that the user equipment can communicate with the newly added auxiliary cell, and the throughput of the UE is improved.
Based on the system architecture diagram described in fig. 1, 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 a measurement report reported by the UE, determines whether to add a secondary cell based on the measurement report, and may allocate a cell index to 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.
The description about determining that the secondary base station adds the first secondary cell to the user equipment may refer to the description about the embodiment shown in fig. 2, and is not repeated here. The secondary base station allocates a cell index for each secondary cell in the first secondary cell. The number of the first auxiliary cells is one or more.
S602: and the auxiliary base station performs air interface resource configuration for the first auxiliary cell.
S603: and the auxiliary base station directly sends the generated air interface resource configuration information to the user equipment, wherein the air interface resource configuration information comprises the identification of the first auxiliary cell, the cell index of the first auxiliary cell and the air interface resource information of the first auxiliary cell.
In this embodiment of the present invention, the secondary base station may carry the air interface resource configuration information corresponding to the first secondary cell in an RRC reconfiguration message, and send the RRC reconfiguration message to the user equipment.
In some possible embodiments, 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, and the primary base station receives the identifier of the first secondary cell and the cell index corresponding to the identifier of the first secondary cell sent by the secondary base station. 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 a secondary base station reconfiguration confirmation message and sends the secondary base station reconfiguration confirmation message to the primary base station (step S604), so as to notify the primary base station that the configuration added by the secondary cell takes effect on the user equipment side.
In the embodiment of the invention, the main base station and the secondary base station respectively maintain the cell indexes of the respective secondary cells, namely the cell indexes are based on the respective cell groups, and one cell is uniquely identified in one cell group. Therefore, the reporting format of the power redundancy report (PHR) needs to be changed. Namely: an indication message is added to indicate whether the secondary cell corresponding to the cell index is the secondary cell on the primary base station or the secondary cell on the secondary base station. Namely: in the existing PHR format, if the indexes allocated to different secondary cells of the primary base station and the secondary base station are the same, a 1-bit reserved field is used to indicate whether the secondary cell index is used in both the primary base station and the secondary base station, and then the 1-bit reserved field is used to indicate whether the power reporting information corresponding to the secondary cell index is for the primary base station or the secondary base station.
The PHR format is shown in fig. 7. In fig. 7, F field: to indicate whether the cell index is used in 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 at the primary base station and the secondary base station at the same time. If the field is set to 0, it indicates that the cell index is used by only one base station. A T field: whether the cell index indicates the primary base station or the secondary base station is indicated. If the field is set to 1, it indicates that the cell index indicates the secondary cell on the primary base station, and 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 and secondary base stations at the same time, and at this time, the cell index corresponds to two power reporting information, including: for example, the T field is set to 0 to indicate power reporting information corresponding to the primary base station, and the T field is set to 1 to indicate power reporting information corresponding to the secondary base station. That is, if a cell index corresponds to F ═ 1, the field T ═ 0 must be followed by a field immediately following F ═ 1 and T ═ 1, as shown in fig. 7 for field F and field T.
The execution order of step S603 and step S604 is not particularly limited, and step S603 may be executed before step S604 or after step S604.
By implementing the embodiment of the invention, the auxiliary base station can determine whether to add the auxiliary cell according to the measurement report reported by the UE, and the auxiliary base station allocates the cell index for the added auxiliary cell, thereby realizing the identification of the newly added auxiliary cell between the UE and the auxiliary base station and improving the throughput of the UE.
In order to better implement the data transmission method of the embodiment of the invention, the invention also provides related equipment for implementing the method.
Please refer to fig. 8, which is a schematic structural diagram of an auxiliary 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. Wherein the processor 801, memory 802, and transceiver 803 may be connected by a bus or otherwise.
In some possible embodiments, the secondary base station 80 may also include a network interface 804 and a power module 805.
The processor 801 may be a Digital Signal Processing (DSP) chip.
The memory 802 is used for storing instructions, and the memory 802 may be a read-only memory (ROM), a Random Access Memory (RAM), or the like.
The transceiver 803 is used for performing transmission processing (e.g., modulation) on the mobile communication signal generated by the processor 801 and for performing reception processing (e.g., demodulation) on the mobile communication signal received by the antenna.
Network interface 804 is used for data communication of secondary base station 80 with other devices. The network interface 804 may be a wired interface or a wireless interface.
The power supply module 805 is used to supply power to the respective modules of the secondary base station 80.
In the first scheme of the embodiment of the present invention, the processor 801 is configured to call 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;
the processor 801 controls the transceiver 803 to send a first message to a master base station, where the first message includes an identifier of the first secondary cell and/or the number of the first secondary cells, and the first message is used to instruct the master base station to allocate a cell index for the first secondary cell.
In some possible embodiments, the first message further includes indication information that the secondary base station requests to add a secondary cell.
In some possible embodiments, 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 air interface resource information corresponding to the identifier of the first secondary cell; the first message 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 some possible embodiments, the first message includes an identification of the first secondary cell, and after the processor 801 controls the transceiver 803 to transmit the first message to the master base station, the processor 801 is further configured to:
the control transceiver 803 receives a second message sent by the master base station, where the second message includes an identifier of a second secondary cell that the master base station allows the secondary base station to add and a cell index corresponding to the identifier of the second secondary cell, and the second secondary cell is a part or all of the first secondary cells;
and configuring air interface resources for the second auxiliary cell.
In some possible embodiments, after the processor 801 controls the transceiver 803 to send the first message to the master base station, the processor 801 is further configured to:
the control transceiver 803 receives a second message sent by the master base station, where the second message includes cell indexes allocated by the master base station for the secondary base stations, and the number of the cell indexes is less than or equal to the number of the first secondary cells;
determining a second secondary cell according to the number of the cell indexes, allocating the received cell indexes to the second secondary cell, and configuring air interface resources for the second secondary cell, wherein the second secondary cell is part or all of the first secondary cell.
In some possible embodiments, after the processor 801 controls the transceiver 803 to send the first message to the master base station, the processor 801 is further configured to:
the control transceiver 803 receives a second message sent by the master base station, where the second message includes the number of secondary cells that the master base station allows the secondary base station to increase and the cell index allocated by the master base station, where the number of cell indexes allocated by the master base station is the same as the number of secondary cells that the master base station allows the secondary base station to increase, and the number of cell indexes is smaller than the number of first secondary cells;
determining a second auxiliary cell according to the number of the auxiliary cells, allocating the received cell index to the second auxiliary cell, and configuring air interface resources for the second auxiliary cell, wherein the second auxiliary cell is part of the first auxiliary cell.
In some possible embodiments, after the processor 801 configures an 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 through the primary base station;
or, 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.
In some possible embodiments, after the processor 801 controls the transceiver 803 to send the first message to the master base station, the processor 801 is further configured to:
the control transceiver 803 receives a third message sent by the master base station, where the third message is used to instruct the master base station to reject the request of the secondary base station to add the first secondary cell.
It should be noted that, for the functions of each functional device in the secondary base station 80 described in the embodiment of the present invention, reference may be made to the related description of the corresponding secondary base station in the embodiment shown in fig. 2 or fig. 3, which is not described herein again.
In the second scheme of the embodiment of the present invention, the processor 801 is configured to call the program and data stored in the memory 802, and perform the following operations:
the processor 801 controls the transceiver 803 to receive a 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, the first message including the measurement report, the first message being used for the primary base station to add a secondary cell to the secondary base station according to the measurement report.
In some possible embodiments, the first message further includes one or more of indication information that the secondary base station requests to add a secondary cell, the number of secondary cells that the secondary base station requests to add, and load information corresponding to the secondary cells included in the measurement report.
In some possible embodiments, after the processor 801 controls the transceiver 803 to send the first message to the master base station, the processor 801 is further configured to:
the control transceiver 803 receives a second message sent by the master base station, where the second message includes an identifier of a first secondary cell that the master base station allows the secondary base station to add and a cell index corresponding to the identifier of the first secondary cell, and the first secondary cell includes one or more cells;
and configuring air interface resources for the first auxiliary cell.
In some possible embodiments, after the processor 801 configures an 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 through 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.
In some possible embodiments, after the processor 801 controls the transceiver 803 to send the first message to the master base station, the processor 801 is further configured to:
the control transceiver 803 receives a third message sent by the master base station, where the third message is used to instruct the master base station to reject the request of the secondary base station to add a secondary cell.
It should be noted that, for the functions of each functional module in the secondary base station 80 described in the embodiment of the present invention, reference may be made to the related description of the corresponding secondary base station in the embodiment shown in fig. 4 or fig. 5, which is not described herein again.
In a third solution of the embodiment of the present invention, the processor 801 is configured to call 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 allocate a cell index to the first secondary cell;
the processor 801 configures the air interface resource for the first auxiliary cell, and directly 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 auxiliary cell, a cell index of the first auxiliary cell, and air interface resource information of the first auxiliary cell.
In some possible embodiments, after the processor 801 allocates the 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 a cell index corresponding to the identifier of the first secondary cell to the master base station.
It should be noted that, for the functions of each functional module in the secondary base station 80 described in the embodiment of the present invention, reference may be made to the related description of the corresponding secondary base station in the embodiment shown in fig. 6, which is not described herein again.
Fig. 9 is a schematic structural diagram of an auxiliary base station according to an embodiment of the present invention. As shown in fig. 9, the main base station 90 includes a processor 901, a memory 902, and a transceiver 903. Wherein the processor 901, memory 902, and transceiver 903 may be connected by a bus or other means.
In some possible embodiments, the master base station 90 may also include a network interface 904 and a power module 905.
The processor 901 may be a DSP chip, among others.
The memory 902 is used for storing instructions, and the memory 902 may be a ROM or a RAM.
The transceiver 903 is configured to perform transmission processing (e.g., modulation) on the mobile communication signal generated by the processor 901, and is also configured to perform reception processing (e.g., demodulation) on the mobile communication signal received by the antenna.
The network interface 904 is used for data communication with the main base station 90 and other devices. The network interface 904 may be a wired interface or a wireless interface.
The power module 905 is used to supply power to the various modules of the master base station 90.
In the first solution of the embodiment of the present invention, the processor 901 is configured to call the program and data stored in the memory 902, and perform the following operations:
the processor 901 controls the transceiver 903 to receive a first message sent by a secondary base station, where the first message includes an identifier of a first secondary cell and/or the number of the first secondary cells, which the secondary base station requests to add;
processor 901 determines whether to allocate a cell index to the secondary base station according to the first message.
In some possible embodiments, the first message further includes indication information that the secondary base station requests to add a secondary cell.
In some possible embodiments, 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 air interface resource information corresponding to the identifier of the first secondary cell; the processor 901 determines 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;
after processor 901 assigns a cell index to the first secondary cell, processor 901 is further configured to:
and 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 embodiments, the first message includes an identifier of the first secondary cell, and the processor 901 determines whether to allocate a cell index to the secondary base station according to the first message, including:
determining a second secondary cell allowing the secondary base station to increase, and allocating a cell index to the second secondary cell, wherein the second secondary cell is part or all of the first secondary cell;
after the processor 901 allocates the cell index to the second secondary cell, the processor 901 is further configured to:
and the control transceiver 903 sends a second message to the secondary base station, where the second message includes the identifier of the second secondary cell and a cell index corresponding to the identifier of the second secondary cell.
In some possible embodiments, the determining, by the processor 901, whether to allocate a cell index to the secondary base station according to the first message includes:
allocating cell indexes to the secondary base station, wherein the number of the cell indexes is less than or equal to that of the first secondary cells;
after the processor 901 allocates the cell index to the secondary base station, the processor 901 is further configured to:
the control transceiver 903 transmits a second message to the secondary base station, the second message including the cell index.
In some possible embodiments, the determining, by the processor 901, whether to allocate a cell index to the secondary base station according to the first message includes:
determining the number of the secondary cells added by the secondary base station, and distributing cell indexes with the number corresponding to the number of the secondary cells, wherein the number of the cell indexes is smaller than the number of the first secondary cells;
after the processor 901 allocates the cell indexes of the number 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 secondary cells.
In some possible embodiments, the determining, by the processor 901, whether to allocate a cell index to the secondary base station according to the first message includes:
determining to reject the request of the secondary base station to add the first secondary cell;
after processor 901 determines to reject the request for the secondary base station to add the first secondary cell, 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 instruct the primary base station to reject the request of the secondary base station to add the first secondary cell.
It should be noted that, for the functions of each functional device in the main base station 90 described in the embodiment of the present invention, reference may be made to the related description of the corresponding main base station in the embodiment shown in fig. 2 or fig. 3, and details are not described here again.
In a second solution of the embodiment of the present invention, the processor 901 is configured to call the program and data stored in the memory 902, and perform the following operations:
the processor 901 controls the transceiver 903 to receive a first message sent by a secondary base station, where the first message includes a measurement report of a system to which the secondary base station belongs by a user equipment;
processor 901 determines whether the secondary base station adds a secondary cell according to the first message.
In some possible embodiments, the first message further includes one or more of indication information that the secondary base station requests to add a secondary cell, the number of secondary cells that the secondary base station requests to add, and load information corresponding to the secondary cells included in the measurement report.
In some possible embodiments, the processor 901 determines whether the secondary base station adds a secondary cell according to the first message, including:
determining a first secondary cell added by the secondary base station according to the measurement report, and allocating a cell index to the first secondary cell, wherein the first secondary cell comprises one or more cells;
after processor 901 assigns a cell index to the first secondary cell, processor 901 is further configured to:
and the control transceiver 903 sends a second message to the secondary base station, where the second message includes the identifier of the first secondary cell and a cell index corresponding to the identifier of the first secondary cell.
In some possible embodiments, the processor 901 determines whether the secondary base station adds a secondary cell according to the first message, including:
determining to reject the request of the secondary base station for adding the secondary cell;
after the processor 901 determines to reject the request for 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 instruct the primary base station to reject the request of the secondary base station to add a secondary cell.
It should be noted that, for the functions of each functional module in the main base station 90 described in the embodiment of the present invention, reference may be made to the related description of the corresponding main base station in the embodiment shown in fig. 4 or fig. 5, and details are not described here again.
In a third solution of the embodiment of the present invention, the processor 901 is configured to call the program and data stored in the memory 902, and perform the following operations:
the processor 901 controls the transceiver 903 to receive an identifier of a first secondary cell and a cell index corresponding to the identifier of the first secondary cell, where the identifier of the first secondary cell is sent by a secondary base station, the first secondary cell is a secondary cell determined by the secondary base station to be added to a user equipment, and the cell index is allocated to the first secondary cell by the secondary base station.
It should be noted that, for the functions of each functional module in the main base station 90 described in the embodiment of the present invention, reference may be made to the related description of the corresponding main base station in the embodiment shown in fig. 6, and details are not described here again.
Please refer to fig. 10, which 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 a first scheme of the embodiment of the present invention, a processing unit 1001 is configured to determine to add a first secondary cell to a user equipment;
a communication unit 1002, configured to send a first message to a master base station, where the first message includes an identifier of the first secondary cell and/or the number of the first secondary cells, and the first message is used to instruct the master base station to allocate a cell index for the first secondary cell.
In the present embodiment, the secondary base station 100 is presented in the form of a functional unit. An "element" may refer to an Application Specific Integrated Circuit (ASIC), a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. The secondary base station 100 may take the form shown in fig. 8. The processing unit 1001 may be implemented by the processor 801 in fig. 8, and the communication unit 1002 may be implemented by the transceiver 803 in fig. 8.
In some possible embodiments, the first message further includes indication information that the secondary base station requests to add a secondary cell.
In some possible embodiments, 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 air interface resource information corresponding to the identifier of the first secondary cell; the first message 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 some possible embodiments, the first message includes an identifier of the first secondary cell, and the communication unit 1002 is configured to, after sending the first message to the master base station, receive a second message sent by the master base station, where the second message includes an identifier of a second secondary cell that the master base station allows the secondary base station to add and a cell index corresponding to the identifier of the second secondary cell, and the second secondary cell is a part or all of the first secondary cells;
the processing unit 1001 is further configured to perform configuration of air interface resources for the second secondary cell.
In some possible embodiments, 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 second message sent by the primary base station, where the second message includes a cell index allocated by the primary base station for the secondary base station, and the number of the cell indexes is smaller than or equal to the number of the first secondary cells;
the processing unit 1001 is further configured to determine a second secondary cell according to the number of the cell indexes, allocate the received cell indexes to the second secondary cell, and configure air interface resources for the second secondary cell, where the second secondary cell is part or all of the first secondary cells.
In some possible embodiments, after sending the first message to the master base station, the communication unit 1002 is further configured to receive a second message sent by the master base station, where the second message includes the number of secondary cells that the master base station allows the secondary base station to increase and a cell index allocated by the master base station, where the number of cell indexes allocated by the master base station is the same as the number of secondary cells that the master base station allows the secondary base station to increase, and the number of cell indexes is smaller than the number of first secondary cells;
the processing unit 1001 is further configured to determine a second secondary cell according to the number of the secondary cells, allocate the received cell index to the second secondary cell, and configure an air interface resource for the second secondary cell, where the second secondary cell is a part of the secondary cells in the first secondary cell.
In some possible embodiments, the processing unit 1001 is configured to, after performing configuration of an air interface resource for the second secondary cell, send, by the communication unit 1002, air interface resource configuration information corresponding to the second secondary cell to the user equipment through the primary base station;
or, 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;
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 some possible embodiments, after the communication unit 1002 is configured to send the first message to the master base station, the communication unit 1002 is further configured to receive a third message sent by the master base station, where the third message is used to instruct the master base station to reject the request of the secondary base station to add the first secondary cell.
It should be noted that, for the functions of each functional module in the secondary base station 100 described in the embodiment of the present invention, reference may be made to the related description of the corresponding secondary base station in the embodiment shown in fig. 2 or fig. 3, and details are not repeated here.
In a second scheme of the embodiment of the present invention, the communication unit 1002 is configured to receive a measurement report corresponding to the secondary base station, where the measurement report is sent by a user equipment;
the communication unit 1002 is further configured to send a first message to a master base station, where the first message includes the measurement report, and the first message is used for the master base station to add a secondary cell to the secondary base station according to the measurement report.
In some possible embodiments, the first message further includes one or more of indication information that the secondary base station requests to add a secondary cell, the number of secondary cells that the secondary base station requests to add, and load information corresponding to the secondary cells included in the measurement report.
In some possible embodiments, after the communication unit 1002 is configured to send the first message to the master base station, the communication unit 1002 is further configured to receive a second message sent by the master base station, where the second message includes an identifier of a first secondary cell that the master base station allows the secondary base station to add and a cell index corresponding to the identifier of the first secondary cell, and the first secondary cell includes one or more cells;
a processing unit 1001, configured to perform configuration of air interface resources for the first secondary cell.
In some possible embodiments, the processing unit 1001 is configured to, after performing configuration of an air interface resource for the first secondary cell, send, by the communication unit 1002, air interface resource configuration information corresponding to the first secondary cell to the user equipment through the primary base station;
or, the communication unit 1002 is further configured to directly send 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 some possible embodiments, 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 instruct the primary base station to reject the request of the secondary base station to add the secondary cell.
It should be noted that, for the functions of each functional module in the secondary base station 100 described in the embodiment of the present invention, reference may be made to the related description of the corresponding secondary base station in the embodiment shown in fig. 4 or fig. 5, which is not described herein again.
In a third aspect of the embodiment of the present invention, a processing unit 1001 is configured to determine to add a first secondary cell to a user equipment, and allocate a cell index to the first secondary cell;
the processing unit 1001 is further configured to perform air interface resource configuration for the first auxiliary cell, and directly send generated air interface resource configuration information to the user equipment, where the air interface resource configuration information includes an identifier of the first auxiliary cell, a cell index of the first auxiliary cell, and air interface resource information of the first auxiliary cell.
In some possible embodiments, 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, to the master base station, an identifier of the first secondary cell and a cell index corresponding to the identifier of the first secondary cell.
It should be noted that, for the functions of each functional module in the secondary base station 100 described in the embodiment of the present invention, reference may be made to the related description of the corresponding secondary base station in the embodiment shown in fig. 6, which is not described herein again.
Please refer to fig. 11, which is a schematic structural diagram of another secondary base station according to an embodiment of the present invention. As shown in fig. 11, the main base station 110 includes: a processing unit 1101 and a communication unit 1102.
In a first scheme of the embodiment of the present invention, a communication unit 1102 is configured to receive a first message sent by a secondary base station, where the first message includes an identifier of a first secondary cell and/or the number of the first secondary cells, where the secondary base station requests to increase;
a processing unit 1101, configured to determine whether to allocate a cell index to the secondary base station according to the first message.
In the present embodiment, the main base station 110 is presented in the form of a functional unit. As used herein, a "unit" may refer to an ASIC, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. The master base station 110 may take the form shown in fig. 9. The processing unit 1101 may be implemented by the processor 901 in fig. 9, and the communication unit 1102 may be implemented by the transceiver 903 in fig. 9.
In some possible embodiments, the first message further includes indication information that the secondary base station requests to add a secondary cell.
In some possible embodiments, 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 air interface resource information corresponding to the identifier of the first secondary cell; the processing unit 1101 is configured to determine whether to allocate a cell index to the secondary base station according to the first message, and includes: allocating a cell index to the first secondary cell;
a processing unit 1101, configured to, after allocating a cell index to the first secondary cell, send the allocated cell index and the air interface resource configuration information sent by the secondary base station to the user equipment by using the communication unit 1102.
In some possible embodiments, the first message includes an identifier of the first secondary cell, and the processing unit 1101 is configured to determine whether to allocate a cell index to the secondary base station according to the first message, including:
determining a second secondary cell allowing the secondary base station to increase, and allocating a cell index to the second secondary cell, wherein the second secondary cell is part or all of the first secondary cell;
after allocating the cell index 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 the identifier of the second secondary cell and the cell index corresponding to the identifier of the second secondary cell.
In some possible embodiments, the processing unit 1101 is configured to determine whether to allocate a cell index to the secondary base station according to the first message, and includes:
allocating cell indexes to the secondary base station, wherein the number of the cell indexes is less than or equal to that of the first secondary cells;
after allocating the cell index 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.
In some possible embodiments, the processing unit 1101 is configured to determine whether to allocate a cell index to the secondary base station according to the first message, and includes:
determining the number of the secondary cells added by the secondary base station, and distributing cell indexes with the number corresponding to the number of the secondary cells, wherein the number of the cell indexes is smaller than the number of the first secondary cells;
after allocating the cell indexes of the number corresponding to the number of the secondary cells, the communication unit 1102 is further configured to send a second message to the secondary base station, where the second message includes the cell indexes and the number of the secondary cells.
In some possible embodiments, the processing unit 1101 is configured to determine whether to allocate a cell index to the secondary base station according to the first message, and includes:
determining to reject the request of the secondary base station to add the first secondary cell;
after determining to reject the request of the secondary base station 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 instruct the primary base station to reject the request of the secondary base station to add the first secondary cell.
It should be noted that, for the functions of each functional module in the main base station 110 described in the embodiment of the present invention, reference may be made to the related description of the corresponding main base station in the embodiment shown in fig. 2 or fig. 3, and details are not described here again.
In a second scheme of the embodiment of the present invention, a communication unit 1102 is configured to receive a first message sent by a secondary base station, where the first message includes a measurement report of a system to which a user equipment belongs;
a processing unit 1101, configured to determine whether the secondary base station adds a secondary cell according to the first message.
In some possible embodiments, the first message further includes one or more of indication information that the secondary base station requests to add a secondary cell, the number of secondary cells that the secondary base station requests to add, and load information corresponding to the secondary cells included in the measurement report.
In some possible embodiments, the processing unit 1101 is configured to determine whether the secondary base station adds a secondary cell according to the first message, and includes:
determining a first secondary cell added by the secondary base station according to the measurement report, and allocating a cell index to the first secondary cell, wherein the first secondary cell comprises one or more cells;
after allocating the cell index 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 cell index corresponding to the identifier of the first secondary cell.
In some possible embodiments, the processing unit 1101 is configured to determine whether the secondary base station adds a secondary cell according to the first message, and includes:
determining to reject the request of the secondary base station for adding the secondary cell;
after determining to reject the request of the secondary base station for adding the 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 instruct the primary base station to reject the request of the secondary base station for adding the secondary cell.
It should be noted that, for the functions of each functional module in the main base station 110 described in the embodiment of the present invention, reference may be made to the related description of the corresponding main base station in the embodiment shown in fig. 4 or fig. 5, and details are not repeated here.
In a third scheme of the embodiment of the present invention, a communication unit 1102 is configured to receive an identifier of a 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 a secondary base station to be added to a user equipment, and the cell index is allocated to the first secondary cell by the secondary base station.
It should be noted that, for the functions of each functional module in the main base station 110 described in the embodiment of the present invention, reference may be made to the related description of the corresponding main base station in the embodiment shown in fig. 6, which is not described herein again.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware or in software executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable hard disk, a compact disc read only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in the primary base station or the secondary base station. Of course, the processor and the storage medium may reside as discrete components in a primary base station or a secondary base station.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in connection with the embodiments of the invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over 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 place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the embodiments of the present invention.

Claims (16)

1. A method of data transmission, comprising:
the method comprises the steps that a secondary base station receives a measurement report sent by user equipment and determines that a first secondary cell is added to the user equipment; the measurement report is obtained by the user equipment performing measurement according to the measurement configuration issued by the auxiliary base station;
and the secondary base station sends a first message to a main base station, wherein the first message comprises the identification of the first secondary cell and/or the number of the first secondary cells, and the first message is used for indicating the main base station to allocate a cell index for the first secondary cell.
2. The method of claim 1, wherein the first message further comprises indication information that the secondary base station requests to add a secondary cell.
3. 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 air interface resource information corresponding to the identifier of the first secondary cell; the first message 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.
4. The method of claim 1 or 2, wherein after the secondary base station sends the first message to the primary base station, the method further comprises:
the secondary base station receives a second message sent by the main base station, wherein the second message comprises a cell index allocated by the main base station for the secondary base station, and the number of the cell indexes is less than or equal to that of the first secondary cells;
the auxiliary base station determines a second auxiliary cell according to the number of the cell indexes, allocates the received cell indexes to the second auxiliary cell, and configures air interface resources for the second auxiliary cell, wherein the second auxiliary cell is part or all of the first auxiliary cell;
or, 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 method further includes:
the secondary base station receives a second message sent by the primary base station, where the second message includes an identifier of a second secondary cell that the primary base station allows the secondary base station to add and a cell index corresponding to the identifier of the second secondary cell, and the second secondary cell is part or all of the first secondary cells;
and the auxiliary base station performs air interface resource configuration for the second auxiliary cell.
5. A method of data transmission, comprising:
a main base station receives a first message sent by an auxiliary base station, wherein the first message comprises an identifier of a first auxiliary cell and/or the number of the first auxiliary cells, which are requested to be added by the auxiliary base station; the first message is sent by the secondary base station when the secondary base station receives a measurement report sent by user equipment and determines that the first secondary cell is added to the user equipment, and the measurement report is obtained by measuring the user equipment according to measurement configuration sent by the secondary base station;
and the main base station determines whether to distribute a cell index to the auxiliary base station according to the first message.
6. The method of claim 5, wherein the first message further comprises indication information that the secondary base station requests to add a secondary cell.
7. 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 air interface resource information corresponding to the identifier of the first secondary cell; the main base station determines whether to allocate a cell index to the secondary base station according to the first message, including:
the master base station allocates a cell index to the first secondary cell;
after the master base station allocates the cell index to the first secondary cell, the method further includes:
and the main base station sends the allocated cell index and the air interface resource configuration information sent by the auxiliary base station to the user equipment.
8. The method of claim 5 or 6, wherein the determining, by the master base station, whether to allocate a cell index to the secondary base station according to the first message comprises:
the main base station distributes cell indexes to the auxiliary base stations, and the number of the cell indexes is smaller than or equal to that of the first auxiliary cells;
after the primary base station allocates the cell index to the secondary base station, the method further includes:
the main base station sends a second message to the auxiliary base station, wherein the second message comprises the cell index;
or, the first message includes an identifier of the first secondary cell, and the determining, by the master base station, whether to allocate a cell index to the secondary base station according to the first message includes:
the master base station determines a second auxiliary cell which allows the auxiliary base station to increase, and allocates a cell index to the second auxiliary cell, wherein the second auxiliary cell is part or all of the first auxiliary cell;
after the master base station allocates the cell index to the second secondary cell, the method further includes:
and the master base station sends a second message to the secondary base station, wherein the second message comprises the identifier of the second secondary cell and the cell index corresponding to the identifier of the second secondary cell.
9. A secondary base station, wherein the secondary base station comprises: a processing unit and a communication unit;
the processing unit is configured to receive a measurement report sent by a user equipment and determine that a first secondary cell is added to the user equipment; the measurement report is obtained by the user equipment performing measurement according to the measurement configuration issued by the auxiliary base station;
the communication unit is configured to send a first message to a master base station, where the first message includes an identifier of the first secondary cell and/or the number of the first secondary cells, and the first message is used to instruct the master base station to allocate a cell index for the first secondary cell.
10. The secondary base station of claim 9, wherein the first message further includes indication information that the secondary base station requests to add a secondary cell.
11. The secondary base station according to claim 9 or 10, 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 air interface resource information corresponding to the identifier of the first secondary cell; the first message 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.
12. The secondary base station according to claim 9 or 10, wherein the communication unit is configured to, after sending the first message to the primary base station, 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, and the number of the cell indexes is smaller than or equal to the number of the first secondary cells;
the processing unit is further configured to determine a second secondary cell according to the number of the cell indexes, allocate the received cell indexes to the second secondary cell, and configure air interface resources for the second secondary cell, where the second secondary cell is part or all of the first secondary cells;
or, the first message includes an identifier of the first secondary cell, and the communication unit, after sending the first message to a master base station, is further configured to receive a second message sent by the master base station, where the second message includes an identifier of a second secondary cell that the master base station allows the secondary base station to add and a cell index corresponding to the identifier of the second secondary cell, and the second secondary cell is a part or all of the first secondary cells;
the processing unit is further configured to configure air interface resources for the second secondary cell.
13. A master base station, comprising: a processing unit and a communication unit;
the communication unit is configured to receive a first message sent by a secondary base station, where the first message includes an identifier of a first secondary cell and/or the number of the first secondary cells, where the secondary base station requests to add; the first message is sent by the secondary base station when the secondary base station receives a measurement report sent by user equipment and determines that the first secondary cell is added to the user equipment, and the measurement report is obtained by measuring the user equipment according to measurement configuration sent by the secondary base station;
the processing unit is configured to determine whether to allocate a cell index to the secondary base station according to the first message.
14. The master base station of claim 13, wherein the first message further comprises indication information that the secondary base station requests to add a secondary cell.
15. The primary base station according to claim 13 or 14, 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 air interface resource information corresponding to the identifier of the first secondary cell; the processing unit, configured to determine whether to allocate a cell index to the secondary base station according to the first message, includes:
allocating a cell index to the first secondary cell;
the processing unit is configured to, after allocating a cell index to the first auxiliary cell, send the allocated cell index and the air interface resource configuration information sent by the auxiliary base station to the user equipment.
16. The master base station of claim 13 or 14, wherein the processor is configured to determine whether to assign a cell index to the secondary base station according to the first message, and comprises:
allocating cell indexes to the secondary base station, wherein the number of the cell indexes is less than or equal to that of the first secondary cells;
the processor is configured to, after allocating a cell index to the secondary base station, 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 whether to allocate a cell index to the secondary base station according to the first message, and includes: determining a second secondary cell allowing the secondary base station to increase, and allocating a cell index to the second secondary cell, wherein the second secondary cell is part or all of the first secondary cell;
the processing unit is configured to, after allocating the cell index to the second secondary cell, send 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.
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