JP2021048613A - Method and apparatus for transmitting data - Google Patents

Abstract

To provide a method and device for data transmission, which may reduce a transmission load of a primary network device.SOLUTION: A first primary network device receives measurement result information of a secondary network device sent by a terminal device during access to the first primary network device. The measurement result information is used for indicating the quality of a link between the secondary network device and the terminal device. The first primary network device determines, according to the quality of the link between the secondary network device and the terminal device, to establish a secondary connection between the secondary network device and the terminal device and establishes the secondary connection.SELECTED DRAWING: Figure 2

Description

The present invention relates to the field of communication, and more specifically to data transmission methods and devices.

In the deployment scene of a non-standalone network, the terminal device is data via a long-term evolution (Long Term Evolution: abbreviated as "LTE") network and a new wireless (New Radio: abbreviated as "NR") network. Can be received or transmitted simultaneously, and this technique may be referred to as a multi-connection technique.

In a multi-connection of a terminal device, there is one primary connection and one or more secondary connections. The primary connection is a network connection between the terminal device and the primary network device, and the secondary connection is a network connection between the terminal device and the secondary network device. For example, in the LTE + NR cell arrangement scene, the primary network device is the network device in the LTE network. The secondary network device may be a network device in the NR network. The control plane data of the terminal device may be transmitted by the primary connection, and the user plane data of the terminal device may be divided into two channels and transmitted simultaneously by the primary connection and the secondary connection, thereby improving the throughput of the user plane data. , Or the user plane data may be transmitted only by the secondary connection, which reduces the load on the primary network device, but bypasses the user plane data or control plane data only during the data transmission process and the throughput of the network. As the number of data increases, the transmission load of the primary network device becomes heavier, and the ability to bypass data for the primary network device of the secondary network device needs to be further increased.

An embodiment of the present invention provides a data transmission method and device capable of reducing the transmission load of the primary network device.

In the data transmission method according to the first aspect, the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device, and the measurement result is obtained. The secondary is based on the fact that the information is used to indicate the link quality between the secondary network device and the terminal device and that the first primary network device is based on the link quality between the secondary network device and the terminal device. This includes establishing the establishment of a secondary connection between the network device and the terminal device, and establishing the secondary connection by the first primary network device.

In this way, the terminal device can transmit the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, and the first primary network device is sent from the terminal device. After receiving the measurement result information of, it is determined that it is necessary to establish a secondary connection between the secondary network device and the terminal device based on the measurement result information, and then the first primary network device is the secondary connection. The terminal device transmits data through the secondary connection, and thus the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the access process, thereby transmitting the data to the secondary. It can be bypassed to the network device as soon as possible, so that the secondary connection established by the first primary network device bypasses the data for the first primary network device as soon as possible and the first primary network. The transmission load of the device can be reduced.

Optionally, a secondary connection is used to carry control plane data and / or user plane data, and prior art has shared only the user plane data for the primary network device in the data connection process, thus. Then, the secondary connection established by the first primary network device in the process of the terminal device accessing the first primary network device may share the bypass of user plane data for the first primary network device. Not only can the control plane data bypass be shared for the primary network device, further increasing the bypass capability of the secondary network device to the primary network device and reducing the transmission load of the primary network device. Let me.

In the first possible embodiment of the first aspect, the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device. That includes that the first primary network device receives the measurement result information included in the radio resource control (RRC) connection establishment request message or the RRC connection establishment completion message.

In the embodiment of the present invention, in the process of the terminal device accessing the first primary network device, the idle terminal device transmits an RRC connection establishment request message or an RRC connection establishment completion message to the first primary network device. This may be the case, and it is possible to include the measurement result information of the secondary network device in these two messages, thus accessing when the idle terminal device needs to transmit data. In the process, the measurement result information is transmitted to the first primary network device by these two pieces of information as soon as possible, so that the secondary network device can bypass the data for the first primary network device as soon as possible. Further reduce the transmission load of one primary network device.

In combination with the above possible embodiments of the first aspect, in the second possible embodiment of the first aspect, the first primary network apparatus transmits in the process of access of the primary network apparatus by the terminal apparatus. To receive the measurement result information of the secondary network device, the first primary network device receives the measurement result information included in the handover request message transmitted from the second primary network device, and the hand The overrequest message is further used to request a network device that provides services to the terminal device that the second primary network device needs to be handed over to the first primary network device.

In the embodiment of the present invention, the process of the terminal device accessing the first primary network device may be the process of handover from the second primary network device to the first primary network device, and the second primary The network device is the source network device, the first primary network device is the target network device, and specifically, the measurement result information of the secondary network device is transmitted from the second primary network device to the first primary network device. May be included in the handover request message, the terminal device measures the secondary network device, includes the generated measurement result information in the measurement report sent to the second primary network device, and the second primary. When the network device receives the measurement report, it acquires the measurement result information of the secondary network device in the measurement report, and when it is determined that the second primary network device needs to perform handover based on the measurement report. When the measurement result information of the secondary network device is included in the handover request message transmitted to the first primary network device and the first primary network device receives the handover request message, it is included in the handover request message. It is possible to realize that when the measurement result information of the secondary network device is transmitted to the secondary network device and the handover is performed in this way, the secondary network device bypasses the data for the primary network device as soon as possible. ..

In combination with the above possible embodiment of the first aspect, in the third possible embodiment of the first aspect, the first primary network apparatus transmits in the process of access of the primary network apparatus by the terminal apparatus. To receive the measurement result information of the secondary network device, the first primary network device receives the measurement result information included in the handover completion message transmitted from the terminal device, and the handover is completed. The message further includes being used to indicate that the network device servicing the terminal device has already been handed over from the second primary network device to the first primary network device.

In the embodiment of the present invention, the process of the terminal device accessing the first primary network may be the process of the terminal device transmitting a handover completion message to the first primary network device in the handover process. The measurement information may be included in the handover completion message and transmitted to the first primary network device.

In combination with the above possible embodiments of the first aspect, in the fourth embodiment of the first aspect, the first primary network apparatus establishing the secondary connection means that the first primary network apparatus establishes the secondary connection. After receiving the handover request message transmitted from the second primary network device, the first primary network device sends a confirmation message of the handover request message to the second primary network device, and the hand The confirmation message of the overrequest message includes the arrangement information of the secondary connection so that the second primary network device transmits the arrangement information of the secondary connection to the terminal device, and the arrangement information of the secondary connection is the secondary. It includes being used to establish the secondary connection between the network device and the terminal device.

In the embodiment of the present invention, the first primary network device needs to acquire the arrangement information of the secondary connection in order to establish the secondary connection, and the second primary network device makes a handover request to the first primary network device. When transmitting a message, the location information of the secondary connection may be included in the confirmation message of the handover request message returned from the first primary network device to the second primary network device, thus the hand. The second primary network device sends the placement information of the secondary connection to the terminal device so that the terminal device establishes the secondary network device and the secondary connection as soon as possible in the process of accessing the first primary network device before overshooting. can do.

In combination with the above possible embodiment of the first aspect, in the fifth embodiment of the first aspect, the first primary network device is a secondary transmitted by the terminal device in the process of accessing the primary network device. Before receiving the measurement result information of the network device, in the method, the first primary network device further transmits the first instruction information to the terminal device, and the first instruction information is the first primary network. It is used to instruct the terminal device to transmit the measurement result information to the device, wherein the first primary network device transmits the terminal device in the process of accessing the primary network device. Receiving the measurement result information of the secondary network device includes receiving the measurement result information transmitted by the terminal device based on the first instruction information by the first primary network device.

In the embodiment of the present invention, the first primary network device needs to transmit the first instruction information to the terminal device in order to instruct the terminal device to report the measurement result information of the secondary network device. For example, the first instruction information may be a method of reporting the measurement result information of the secondary network device, a byte indicating the reporting time, and a byte occupied by the specifically reported information.

Optionally, the method can further allow the terminal device to send a third instruction information to the first primary network device before the first primary network device sends the first instruction information to the terminal device. , The first primary network device receives the third instruction information from the terminal device, and the third instruction information indicates whether or not the terminal device stores the measurement result instruction information of the secondary network device. In addition to being used, the terminal device can include a third instructional information in an uplink message sent to the first primary network device, eg, in some uplink messages, the special byte position is zero. In this case, it indicates that the terminal device does not store the measurement instruction information, and when the special bite position is 1, it indicates that the terminal device stores the measurement instruction information. When the first primary network device receives the third instruction information transmitted from the terminal device and confirms that the terminal device stores the measurement result instruction information, the first instruction information is transmitted to the terminal device. Then, instruct the terminal device to report the measurement result information.

In combination with the above possible embodiment of the first aspect, in the sixth embodiment of the first aspect, the first primary network apparatus establishing the secondary connection means that the first primary network apparatus establishes the secondary connection. Is used to send a secondary connection addition request message to the secondary network device, and the secondary connection addition request message is used to request that the secondary network device be added as a network device for transmitting data. The first primary network device receives the confirmation message of the secondary connection addition request message transmitted from the secondary network device, the confirmation message of the secondary connection addition request message includes the arrangement information of the secondary connection, and the secondary The connection arrangement information is used to establish the secondary connection between the secondary network device and the terminal device, the first primary network device acquires the arrangement information of the secondary connection, and the first The primary network apparatus includes transmitting the arrangement information of the secondary connection to the terminal apparatus.

In the embodiment of the present invention, the first primary network needs to acquire the arrangement information of the secondary connection in order to establish the secondary connection. Specifically, the first primary network device is the secondary connection to the secondary network device. When an additional request message can be sent, the secondary connection addition request message contains measurement result information, and the secondary network device receives the secondary connection addition request message, the measurement result information in the secondary connection addition request message and the measurement result information thereof Based on its own load status, it is decided whether or not to allow the establishment of the secondary connection, and if it is decided to allow the establishment of the secondary connection, a confirmation message of the secondary connection addition request message is sent to the first primary network device. If the confirmation message contains the location information of the secondary connection and it is determined that the secondary network device does not allow the establishment of the secondary connection, the failure instruction information is returned to the first primary network device and the secondary connection is established. Indicates the reason for the failure so that the primary network device can not send a secondary connection add request message to the secondary network device when it subsequently receives a similar measurement result based on the reason for the failure to establish the secondary connection. This further reduces the power consumption of the first primary network device.

In combination with the above possible embodiment of the first aspect, in the seventh embodiment of the first aspect, the first primary network apparatus comprises the secondary network apparatus and the terminal apparatus based on the measurement result information. Determining the secondary connection means that the first primary network device establishes a secondary connection between the secondary network device and the terminal device based on the load status of the first primary network device and the measurement result information. including.

Specifically, the measurement result information of the secondary network device indicates that the network condition of the secondary network device is good, and when the load of the current primary primary network device is heavy, the data for the first primary network device is used. Establish a secondary connection to share the bypass, and the measurement result information of the secondary network device indicates that the network condition of the secondary network device is normal, and if the load of the primary network device is light, the secondary You do not have to establish a connection.

In combination with the above possible embodiment of the first aspect, in the eighth embodiment of the first aspect, the method further causes the first primary network apparatus to transmit primary connection placement information to the terminal apparatus. The location information of the primary connection includes that the terminal device is used to establish a primary connection with the first primary network device, and the primary connection is used to transmit data.

In the embodiment of the present invention, the secondary connection between the terminal device and the secondary network device may be used to transmit data, and the primary connection between the terminal device and the first primary network device also transmits data. It may be used, and if the primary connection between the first primary network device and the terminal device is used to transmit data, it is necessary to send the location information of the primary connection and the placement information of the secondary connection to the terminal device. Specifically, the arrangement information of the primary connection and the arrangement information of the secondary connection can be transmitted to the terminal device together. For example, the arrangement information of the primary connection and the arrangement information of the secondary connection are both included in the RRC connection reconstruction message. Can be transmitted together to the terminal device, and in this way, the terminal device receives the arrangement information of the two connections and then transmits data based on the arrangement information of the two connections.

In combination with the above possible embodiments of the first aspect, in the ninth embodiment of the first aspect, the first primary network apparatus is a network apparatus in a long-term evolution (LTE) network and the secondary network. The device is a network device in a 5G network device.

In combination with the above possible embodiment of the first aspect, in the tenth embodiment of the first aspect, the secondary connection is used to transmit the first control plane data and / or the user plane data.

In combination with the above possible embodiment of the first aspect, in the eleventh embodiment of the first aspect, the confirmation message of the secondary connection addition request message further includes the identifier information of at least one secondary cell. The at least one secondary cell is a cell for which the service is provided by the secondary network device, and the first primary network device determines the establishment of a secondary connection between the secondary network device and the terminal device based on the measurement information. Later, in the method, the first primary network device further transmits the identifier information of the at least one secondary cell to the terminal device, and the terminal device accesses the at least one secondary cell based on the identifier information. Including doing so.

In combination with the above possible embodiment of the first aspect, in the twelfth embodiment of the first aspect, after the first primary network apparatus establishes the secondary connection, the method further describes the first. The primary network device is used to transmit a second instruction information to the secondary network device, and the second instruction information is used to instruct the secondary network device to transmit the first control plane data. including.

In the data transmission method according to the second aspect, the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, and the first primary network device causes the first primary network device. The arrangement information of the secondary connection is acquired based on the measurement result information, and the measurement result information is used to indicate the link quality between the secondary network device and the terminal device, and the terminal device is used. The present invention includes receiving the arrangement information of the secondary connection transmitted from the first primary network device, and the terminal device accessing the secondary network device based on the arrangement information of the secondary connection.

In the first possible embodiment according to the second aspect, the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device. The terminal device includes transmitting the measurement result information to the first primary network device by a radio resource control (RRC) connection establishment request message or an RRC connection establishment completion message.

In combination with the above possible embodiment of the second aspect, in the second possible embodiment of the second aspect, the terminal device goes to the first primary network device in the process of accessing the first primary network device. To transmit the measurement result information of the secondary net network device, the terminal device transmits the measurement result information to the first primary network device via the second primary network device, and the measurement result information is the terminal device. The second primary network device is included in the measurement report transmitted from the second primary network device to the first primary network device, and the second primary network device transmits a handover request message to the first primary network device based on the measurement report. The terminal device is informed that the handover request message includes the measurement result information and that the handover request message needs to be further handed over from the second primary network device to the first primary network device. Includes being used to make a request to a network device that provides a service.

In combination with the above possible embodiment of the second aspect, in the third possible embodiment of the second aspect, the terminal device goes to the first primary network device in the process of accessing the first primary network device. To transmit the measurement result information of the secondary network device, the terminal device transmits the measurement result information to the first primary network device by the handover completion message, and the handover completion message further services the terminal device. Is used to indicate that the network device providing the above has already been handed over from the second primary network device to the first primary network device.

In combination with the above possible embodiment of the second aspect, in the fourth embodiment of the second aspect, the terminal device is a secondary network to the first primary network device in the process of accessing the first primary network device. Prior to transmitting the measurement result information of the device, the method further receives the first instruction information transmitted from the first primary network device by the terminal device, and the first instruction information is the first instruction information. It is used to instruct the terminal device to transmit the measurement result information to the primary network device, wherein the terminal device is the first primary network in the process of accessing the first primary network device. Sending the measurement result information of the secondary network device to the device means that the terminal device performs the measurement to the first primary network device in the process of accessing the first primary network device based on the first instruction information. Includes sending result information.

In combination with the above possible embodiment of the second aspect, in the fifth embodiment of the second aspect, the terminal device is a secondary network to the first primary network device in the process of accessing the first primary network device. Before transmitting the measurement result information of the device, the method further causes the terminal device to access the first primary network device if the channel quality between the terminal device and the secondary network device meets the preset conditions. The process includes transmitting the measurement result information to the first primary network device.

In combination with the above possible embodiment of the second aspect, in the sixth embodiment of the second aspect, the method further comprises placement information of the primary connection transmitted by the terminal device from the first primary network device. Is received, and the arrangement information of the primary connection includes that the terminal device is used to establish a primary connection with the first primary network device, and the primary connection is used to transmit data. ..

In combination with the above possible embodiment of the second aspect, in the seventh embodiment of the second aspect, the terminal device is said to have access to the secondary network device based on the placement information of the secondary connection. The method further comprises the terminal device receiving identifier information of at least one secondary cell transmitted from the first primary network device, the cell at which the at least one secondary cell provides services by the secondary network device. Here, the terminal device accesses the secondary network device based on the placement information of the secondary connection, and the terminal device is based on the placement information of the secondary connection and the identifier information of the at least one secondary cell. Access the secondary network device.

In the data transmission method according to the third aspect, the second primary network device receives the measurement result information transmitted from the terminal device, and the measurement result information indicates the link quality between the secondary network device and the terminal device. To be used for
The second primary network device transmits the measurement result information to the first primary network device, and the first primary network device determines the secondary connection between the secondary network device and the terminal device based on the measurement result information. The establishment is confirmed, the first primary network device is a target network device that is handovered by the terminal device, and the second primary network device is a source network device that is handovered by the terminal device. Including that.

In the first possible embodiment of the third aspect, the reception of the measurement result information transmitted from the terminal device by the second primary network device includes the second primary network device in the measurement report. Including receiving the measurement result information, here, the second primary network device transmits the measurement result information to the first primary network device in the process of handover to the first primary network device. The second primary network device transmits the measurement result information to the first primary network device by a handover request message, and the handover request message is further transmitted from the second primary network device to the first primary network device. It is used to request a network device that provides a service to the terminal device that it needs to be handovered to the primary network device.

In combination with the above possible embodiment of the third aspect, in the second embodiment of the third aspect, the second primary network device is sent to the first primary network device by a handover request message. After transmitting the information, the method further receives the arrangement information of the secondary connection included in the confirmation message of the handover request message transmitted from the first primary network device by the second primary network device. The arrangement information of the secondary connection is used to establish the secondary connection between the secondary network device and the terminal device, and the second primary network device transmits the arrangement information of the secondary connection to the terminal device. And include.

In the data transmission method according to the fourth aspect, the secondary network device receives the secondary connection addition request message transmitted from the first primary network device, and the secondary connection addition request message is a secondary between the secondary network device and the terminal device. It is used to request the establishment of a connection, and the secondary network device transmits the secondary connection placement information to the first primary network device based on the secondary connection addition request message, and the secondary connection placement information is used. Is used to connect the secondary connection.

In the first possible embodiment of the fourth aspect, the secondary network apparatus transmitting the arrangement information of the secondary connection to the first primary network apparatus based on the secondary connection addition request message is the secondary network. The apparatus includes sending a confirmation message of the secondary connection addition request message to the first primary network apparatus, and the confirmation message of the secondary connection addition request message includes the arrangement information of the secondary connection.

In combination with the above possible embodiment of the fourth aspect, in the second embodiment of the fourth aspect, the confirmation message of the secondary connection addition request message also contains at least one secondary cell identifier information, said. At least one secondary cell is a cell that is serviced by the secondary network device.

In combination with the above possible embodiment of the fourth aspect, in the third possible embodiment of the fourth aspect, the secondary connection addition request message includes auxiliary information, the auxiliary information being measurement result information, said. It includes at least one of the access capability information of the terminal device and the quality of service (QoS) information of the data, and the measurement result information is used to indicate the link quality information between the secondary network device and the terminal device.

In combination with the above possible embodiment of the fourth aspect, in the fourth possible embodiment of the fourth aspect, the secondary network device goes to the first primary network device based on the secondary connection addition request message. The transmission of the arrangement information of the secondary connection includes the transmission of the arrangement information of the secondary connection to the first primary network device based on the auxiliary information and the load status of the secondary network device. ..

The data transmission device according to the fifth aspect is used to carry out the method in any possible embodiment of the first aspect or the first aspect described above. Specifically, the device comprises a unit for performing the method in any of the first or first possible embodiments described above.

The data transmission device according to the sixth aspect is used to carry out the method in any possible embodiment of the second aspect or the second aspect described above. Specifically, the device comprises a unit for performing the method in any of the second or second possible embodiments described above.

The data transmission device according to the seventh aspect is used to carry out the method in any possible embodiment of the third aspect or the third aspect described above. Specifically, the device comprises a unit for performing the method in any of the third or third possible embodiments described above.

The data transmission device according to the eighth aspect is used to carry out the method in any possible embodiment of the fourth aspect or the fourth aspect described above. Specifically, the device comprises a unit for performing the method in any of the fourth or fourth possible embodiments described above.

The data transmission device according to the ninth aspect includes a receiver, a transmitter, a memory, a processor and a bus system. Here, the receiver, the transmitter, the memory and the processor are connected via the bus system, the memory is used to store instructions, and the processor executes the instructions stored in the memory. It is used to control the receiver to receive the signal, to control the transmitter to transmit the signal, and if the processor executes an instruction stored in the memory, the execution causes the instruction. The processor performs the method in any possible embodiment of either the first aspect or the first aspect.

The data transmission device according to the tenth aspect includes a receiver, a transmitter, a memory, a processor and a bus system. Here, the receiver, the transmitter, the memory and the processor are connected via the bus system, the memory is used to store instructions, and the processor executes the instructions stored in the memory. It is used to control the receiver to receive the signal, to control the transmitter to transmit the signal, and if the processor executes an instruction stored in the memory, the execution causes the instruction. The processor performs the method in any possible embodiment of the second aspect or the second aspect.

The data transmission device according to the eleventh aspect includes a receiver, a transmitter, a memory, a processor and a bus system. Here, the receiver, the transmitter, the memory and the processor are connected via the bus system, the memory is used to store instructions, and the processor executes the instructions stored in the memory. It is used to control the receiver to receive the signal, to control the transmitter to transmit the signal, and if the processor executes an instruction stored in the memory, the execution causes the instruction. The processor performs the method in any possible embodiment of the third aspect or the third aspect.

The data transmission device according to the twelfth aspect includes a receiver, a transmitter, a memory, a processor and a bus system. Here, the receiver, the transmitter, the memory and the processor are connected via the bus system, the memory is used to store instructions, and the processor executes the instructions stored in the memory. It is used to control the receiver to receive the signal, to control the transmitter to transmit the signal, and if the processor executes an instruction stored in the memory, the execution causes the instruction. The processor performs the method in any possible embodiment of the fourth aspect or the fourth aspect.

The system for transmitting data according to the thirteenth aspect includes the device described in the fifth aspect and the device described in the sixth aspect.

The system for transmitting data according to the fourteenth aspect includes the device described in the fifth aspect, the device described in the sixth aspect, and the device described in the seventh aspect.

The system for transmitting data according to the fifteenth aspect includes the device described in the fifth aspect, the device described in the sixth aspect, the device described in the seventh aspect, and the eighth aspect. Equipped with the devices described.

The computer-readable medium according to the sixteenth aspect is used to store a computer program containing instructions for executing the method in any possible embodiment of the first aspect or the first aspect.

The computer-readable medium according to the seventeenth aspect is used to store a computer program containing instructions for executing the method in any possible embodiment of the second aspect or the second aspect.

The computer-readable medium according to the eighteenth aspect is used to store a computer program containing instructions for executing the method in any possible embodiment of the third aspect or the third aspect.

The computer-readable medium according to the nineteenth aspect is used to store a computer program containing instructions for executing the method in any possible embodiment of the fourth aspect or the fourth aspect.

It is a figure which shows the application scene of the Example of this invention. It is a schematic diagram of the data transmission method according to the Example of this invention. It is another schematic of the data transmission method according to the Example of this invention. It is another schematic of the data transmission method according to the Example of this invention. It is another schematic of the data transmission method according to the Example of this invention. It is another schematic of the data transmission method according to the Example of this invention. It is a schematic block diagram of the data transmission apparatus according to the Example of this invention. It is another schematic block diagram of the data transmission apparatus according to the Example of this invention. It is another schematic block diagram of the data transmission apparatus according to the Example of this invention. It is another schematic block diagram of the data transmission apparatus according to the Example of this invention. It is a schematic block diagram of the system for transmitting data according to the Example of this invention. It is a schematic block diagram of the system for transmitting data according to the Example of this invention. It is a schematic block diagram of the system for transmitting data according to the Example of this invention. It is a schematic block diagram of the data transmission apparatus according to the Example of this invention. It is another schematic block diagram of the data transmission apparatus according to the Example of this invention. It is another schematic block diagram of the data transmission apparatus according to the Example of this invention. It is another schematic block diagram of the data transmission apparatus according to the Example of this invention.

In order to more clearly explain the technical solution of the examples of the present invention, the drawings necessary for the description of the examples or the prior art will be briefly described below, and the drawings described below are clearly described in the present invention. There are only a few examples, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

The technical solutions in the examples of the present invention will be clearly and fully described below, combined with the drawings of the examples of the present invention, and the examples clearly explained are some of the examples of the present invention. Only, not all examples. All other examples obtained by those skilled in the art based on the examples of the present invention without the need for creative effort belong to the scope of protection of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention are various communication systems such as Global System for Mobile Communication (abbreviated as "GSM") systems, Code Division Multiple Access: System, Band Code Division Multiple Access (abbreviated as "WCDMA") system, General Packet Radio Service (abbreviated as "GPRS"), Long-term evolution (Long) Term Evolution: abbreviated as "LTE") System, LTE Frequency Division Duplex (abbreviated as "FDD"), LTE Time Division Duplex System (abbreviated as "TDD") Communication system (Universal Mobile Telecommunication System: abbreviated as "UMTS") or Global Interconnect Microwave Access (Worldwide Interoperability for Frequency Division: abbreviated as "WiMAX", etc.) Communication system, and future applications Good.

Also, as it should be understood, in the embodiment of the present invention, the terminal device is a user device (User Equipment: abbreviated as "UE"), a terminal device, a mobile station (Mobile Station: abbreviated as "MS"), and a mobile terminal (Mobile). It may also be called a terminal) or a terminal device in a future 5G network, and the terminal device communicates with one or more core networks via a radio access network (Radio Access Network: abbreviated as "RAN"). The terminal can be, for example, a mobile phone (or referred to as a "cellular" phone) or a computer having a mobile terminal, for example, the terminal may be further portable, pocket, handheld, computer built-in or in-vehicle. They may be mobile devices, which exchange voice and / or data with a radio access network.

The first primary network device and the second primary network device may be used for communication with a mobile terminal, and the network device is a global system for mobile communication (abbreviated as "GSM") or code division multiple access (abbreviated as "GSM"). It may be a base station (Base Transfer Station: abbreviated as "BTS") in a Code Division Multiple Access: abbreviated as "CDMA"), or it may be a band code division multiple access (abbreviated as "Wideband Code Division Multiple Access"). Base station (NodeB: abbreviated as "NB"), evolutionary base station (Evolutional Node B: abbreviated as "eNB" or "eNodeB") in LTE, or relay station or access point, or in-vehicle It may be a device, a wearable device, or an access network device in a future 5G network.

The core network device may be a mobility management entity (abbreviated as "MME"), a serving gateway (abbreviated as "S-GW"), or a packet data gateway (PDN Gateway: "P-"). GW ”), and the present application is not limited to this.

A pairer is a basic unit in which a radio access network (RAN: Radio Access Network) controls the capacity, delay, and bit rate of a user service, and one user can execute different services using a plurality of bearers.

In the embodiment of the present invention, the first primary network device and the second primary network device may be, for example, a macrocell base station, and the secondary network device may be, for example, a microcell base station or a picocell base station. (Picocell), a femtocell base station (Femtocell) may be used, but the embodiment of the present invention is not limited thereto.

More specifically, the first primary network device may be an LTE network device, the secondary network device is an NR network device, and it should be understood that the embodiments of the present invention are not limited thereto. The primary network device may be a GSM network device, a CDMA network device, or the like, and the secondary network device may also be a GSM network device, a CDMA network device, or the like, and the embodiments of the present invention are not limited thereto.

FIG. 1 is a diagram showing one application scene of the present application, in which the network around the terminal device includes a first primary network device 110 and at least one secondary network device 120, and the first primary network device 110 is LTE. It may be a network, and the secondary network device 120 may be an NRF network. The terminal device 130 can establish a connection with the first primary network device 110 and the secondary network device 120 at the same time, and the connection established by the terminal device 130 with the first primary network device 110 is the primary connection, and the terminal device 130 The connection established with the secondary network device 120 is a secondary connection, the control plane data of the terminal device 130 may be transmitted by the primary connection, and the user plane data of the terminal device may be transmitted simultaneously by the primary connection and the secondary connection. Often, transmission may be performed only by a secondary connection, and the first primary network device 110 in the embodiment of the present invention selects the secondary network device 120 that satisfies the preset conditions and transmits the control plane data of the terminal device 110. This allows the load on the first primary network device 110 to be further reduced, for example, the preset condition is that the link quality between the secondary network device 120 and the terminal device 130 meets the data transmission condition. It may be that.

In the embodiment of the present invention, the secondary network device 120 may be flexibly arranged according to the service needs and the user density, and its action assists the first primary network device 110 to share data, and the data is used. The user plane data and the control plane data of the terminal device 130 can be included, the deployment of the secondary network device 120 may be discontinuous, and the adjacent secondary cells may greatly overlap in terms of area. Is not limited to this.

FIG. 2 is a schematic flowchart of a data transmission method 200 according to an embodiment of the present invention, and the execution subject of the method 200 may be, for example, the first primary network device 110 shown in FIG. For example, it may be eNB in LTE, and the method 200 includes S201 to S204.

In S201, the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, and the measurement result information is between the secondary network device and the terminal device. It is used to show the link quality of.

It should be understood that the process by which the terminal device accesses the first primary network device is the process by which the terminal device accesses the first primary network device when it needs to transmit data in an idle state. Or even if the network device servicing the terminal device needs to hand over from the second primary network device to the first primary network device when the terminal device is in the data connection state. At best, the process of the terminal device accessing the first primary network device is not limited to the specific steps in the access process in the embodiment of the present invention.

In S202, after the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device, the first primary network device Based on the link quality between the secondary network device and the terminal device, the establishment of the secondary connection between the secondary network device and the terminal device is determined.

It should be understood that the secondary connection is used to carry data, which includes first control plane data and / or user plane data.

In S203, the first primary network device establishes the secondary connection.

It should be understood that when the first primary network device establishes a secondary connection, the first primary network device receives measurement result information transmitted from the terminal device as an intermediate device between the terminal device and the secondary network device. Then, the measurement result information is transmitted to the secondary network device, the arrangement information of the secondary connection transmitted from the secondary network device is received, and the arrangement information of the secondary connection establishes the secondary connection between the secondary network device and the terminal device. The secondary connection arrangement information may be transmitted to a terminal device or the like, and the process of establishing the secondary connection may be understood as the process of transferring information by the first primary network device. After receiving the arrangement information of the secondary connection, the terminal device establishes the secondary connection with the secondary network device based on the arrangement information of the secondary connection.

In S204, the terminal device accesses the secondary network device based on the arrangement information of the secondary connection.

Specifically, the terminal device can transmit the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, and the first primary network device is the terminal device. After receiving the measurement result information, it is determined that it is necessary to establish a secondary connection between the secondary network device and the terminal device based on the measurement result information, and then the first primary network device makes the secondary connection. Established, the terminal device transmits data via the secondary connection, and thus the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the access process, thereby transmitting the data to the secondary network. The device can be bypassed as soon as possible, thereby allowing the secondary connection established by the primary primary network device to bypass the data for the primary network device as soon as possible, thereby the primary network. The transmission load of the device can be reduced.

Optionally, a secondary connection is used to transmit control plane data and / or user plane data, and prior art shares only user plane data for the primary network device in the data connection process, thus , The secondary connection established by the first primary network device in the process of the terminal device accessing the first primary network device can only share the bypass of user plane data for the first primary network device. Instead, the control plane data bypass can be shared for the primary network device, further increasing the bypass capability of the secondary network device to the primary network device and reducing the transmission load of the primary network device.

In addition, the secondary connection is used for data transmission, the data contains user plane data and control plane data, and by the secondary connection established by the first primary network device, not only the user plane data, but also the first control plane data. The connection between the first primary network device and the terminal device may be called the primary connection, and the primary connection transmits not only the user plane data but also the second control plane data. That is, not only can the user plane data of the terminal device be transmitted only by the primary connection or only the secondary, or the user plane data may be jointly transmitted by the primary connection and the secondary connection, and control of the terminal device. The plane data may be transmitted only by the primary connection or only the secondary, or the control plane data may be jointly transmitted by the primary connection and the secondary connection, and the embodiments of the present invention are not limited to the data transmission method. ..

In addition, the data includes uplink data and downlink data, the uplink data includes uplink control plane data and uplink user plane data, and the downlink data includes downlink control plane data and downlink user plane data. The transmission in the present invention may be understood as uplink transmission and / or downlink transmission.

As one selectable embodiment, when the terminal device is idle, it measures the secondary network device around the first primary network, and optionally, the terminal device measures the secondary network device according to the provisions of the network protocol. It can be measured according to the arrangement of the first primary network equipment, for example, the secondary network around the first primary network equipment within a fixed interval cycle according to the provisions of the protocol or the arrangement of the first primary network equipment. The device can also be measured, and optionally, the terminal device can measure the secondary network device based on the network placement information in the received system message, and the embodiments of the present invention are not limited thereto.

As one selectable embodiment, the method further comprises the terminal device before the terminal device transmits the measurement result of the secondary network device to the first primary network device in the process of accessing the first primary network device. When the channel quality between and the secondary network satisfies the preset condition, the terminal device transmits the measurement result information to the first primary network device in the process of accessing the first primary network device. including.

Specifically, the preset condition may have a specific period according to the protocol, and the terminal device has detected that the channel quality with the secondary network device is higher than the channel quality with the primary network device. It may be that the channel quality of the secondary network device is detected to be higher than a certain threshold, or that the current reference signal power is lower than the set threshold. Alternatively, the terminal device may measure in real time, report in real time, and the like, and the embodiment of the present invention is not limited to the trigger condition in which the terminal device reports the measurement result information.

As one selectable embodiment, when the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, the terminal device is a wireless resource. Control (Radio Resource Control: abbreviated as "RRC") Includes transmitting the measurement result information to the first primary network device by a connection establishment request message. When the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device, the first primary network device receives the radio resource. This includes receiving the measurement result information included in the control (RRC) connection establishment request message.

In one selectable embodiment, the terminal device transmitting the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device means that the terminal device is connected by RRC. The establishment completion message transmits the measurement result information to the first primary network device, and the RRC connection establishment completion message includes the measurement result information. When the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the primary network device, the first primary network device receives radio resource control (RRC). ) Includes receiving the measurement result information included in the connection establishment completion message.

Specifically, when the terminal device needs to transmit data in the idle state, the terminal device sends an RRC connection establishment request message to the first primary network device, and establishes the RRC connection with the measurement result information of the secondary network device. It can be included in the request message, and when the RRC connection establishment is completed, the terminal device connects the measurement result information of the secondary network device to the RCC connection when it is necessary to send the RRC connection establishment completion message to the first primary network device. It can be included in the establishment completion message, and in this way, it is possible to realize that the measurement result information is transmitted to the first primary network device in the access process.

As should be understood, in the embodiment of the present invention, the terminal device can include the measurement result information of the secondary network device in any of the uplink information and transmit it to the first primary network device, and can be selected. The measurement result information may be included in an uplink message in the process of the terminal device accessing the first primary network device, or may be transmitted to the first primary network device in a separate uplink message. Examples of the invention are not limited to this.

As one selectable embodiment, the second primary network device receives the measurement result information transmitted from the terminal device, and the measurement result information indicates the link quality between the secondary network device and the terminal device. Used, the second primary network device transmits the measurement result information to the first primary network device, and the first primary network device is based on the measurement result information, and the secondary network device and the terminal device are used. The first primary network device is the target network device for handover of the terminal device, and the second primary network device is the source network for handover of the terminal device. It is a device.

As one selectable embodiment, the terminal device secondarily transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device. The measurement result information is transmitted to the first primary network device via the primary network device, and the measurement result information is included in the measurement report transmitted from the terminal device to the second primary network device. Including having the second primary network device send a handover request message to the first primary network device based on the measurement report, the first primary network device and the terminal device are the primary network device. Receiving the measurement result information of the secondary network device transmitted in the process of accessing the first primary network device causes the measurement result information included in the handover request message transmitted from the second primary network device. Used to receive and request the network device that provides services to the terminal device that the handover request message needs to be further handovered from the second primary network device to the first primary network device. Including being.

As one selectable embodiment, the first primary network device establishing the secondary connection causes the first primary network device to send a handover request message from the second primary network device. After receiving, the first primary network device sends a confirmation message of the handover request message to the second primary network device, and the confirmation message of the handover request message includes the arrangement information of the secondary connection. The second primary network device transmits the arrangement information of the secondary connection to the terminal device, and the arrangement information of the secondary connection is used for establishing the secondary connection between the secondary network device and the terminal device. The second primary network device includes transmitting the arrangement information of the secondary connection to the terminal device, and the terminal device receives the arrangement information of the secondary connection.

Specifically, when the terminal device is in the data connection state and the network device that provides the service to the terminal device is the second primary network device, the terminal device sends a measurement report to the second primary network device. The measurement report is the measurement report of the second primary network device, the measurement result information of the secondary network device can be included in the measurement report, and the second primary network device receives the measurement report. If so, the measurement result information of the secondary network device in the measurement report is acquired, and it is determined that the second primary network device needs to perform handover based on the measurement report, that is, the service is provided to the terminal device. When the network device is handovered from the second primary network device to the first primary network device, the second primary network device is based on the current network topology structure, and which secondary network device is around the first primary network device. It is possible to determine whether or not there is, and the measurement result corresponding to the secondary network device around the first primary network device is included in the handover request message and transmitted to the first primary network device to be sent to the first primary network device. When the device receives the handover request message, the measurement result information in the handover request message is included in the secondary connection addition request message and transmitted to the secondary network device around the first primary network device, and the secondary network device causes the secondary network device. After receiving the secondary connection addition request message, it is decided whether to allow the establishment of the secondary connection based on the measurement result information and the load state of itself, and if the establishment of the secondary connection is confirmed, the first primary network A confirmation message of the secondary connection addition request message is sent to the device, the confirmation message of the secondary connection addition request message includes the arrangement information of the secondary connection of the secondary network device, and the first primary network device is the arrangement of the secondary connection. The information is included in the confirmation message of the handover request message and transmitted to the second primary network device, and the second primary network device distributes the secondary connection. The location information is transmitted to the terminal device, and the terminal device establishes a secondary connection with the secondary network device around the first primary network device based on the location information of the secondary connection and transmits data.

As one selectable embodiment, when the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, the terminal device is handoverd. The network device that transmits the measurement result information to the first primary network device by the completion message and further provides the service to the terminal device by the handover completion message has already been sent from the second primary network device to the first primary. It includes being used to indicate that it has been handed over to a network device. When the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the primary network device, the first primary network device is transmitted from the terminal device. It also includes receiving the measurement result information included in the handover completion message.

Specifically, when the network device that provides the service to the terminal device needs to perform handover from the second primary network device to the first primary network device, the measurement result information of the secondary network device is first transmitted from the terminal device. Can be included in the handover completion message sent to the primary network device of the terminal device, thus allowing the terminal device to establish a secondary connection during the handover process, thereby further increasing the continuity of data transmission. Guarantee.

As one selectable embodiment, the secondary network device transmits the arrangement information of the secondary connection to the first primary network device, and in S203, the first primary network device is transmitted from the secondary network device. The arrangement information of the secondary connection is received, and the arrangement information of the secondary connection is used to establish the secondary connection between the secondary network device and the terminal device, and the first primary network device is sent to the terminal device. This includes transmitting the arrangement information of the secondary connection and receiving the arrangement information of the secondary connection of the first primary network device by the terminal device.

Selectably, when the first primary network device transmits the arrangement information of the secondary connection to the terminal device, the first primary network device sends an RRC connection reconfiguration message to the terminal device, and the RRC connection. When the reconfiguration message includes the arrangement information of the secondary connection and the terminal device receives the arrangement information of the secondary connection of the first primary network device, the terminal device receives the arrangement information of the secondary connection of the first primary network device. The RRC connection reconfiguration message transmitted from the device is received, and the RRC connection reconfiguration message includes the placement information of the secondary connection.

It should be understood that the secondary connection placement information may be included in the downlink message sent from the primary primary network device to the terminal device, and optionally, the secondary connection placement information is accessed by the terminal device. It may be included in the downlink message of one primary network device, and the arrangement information of the secondary connection may be individually transmitted to the terminal device, and the embodiment of the present invention is not limited to this.

Further, the arrangement information of the secondary connection may be the arrangement information of the bearer, the arrangement information of the security context, and the like, and the embodiment of the present invention is not limited to this.

As one selectable embodiment, when the first primary network device establishes the secondary connection, the first primary network device sends a secondary connection addition request message to the secondary network device, and the secondary The connection addition request message is used to request that the secondary network device be added as a network device for transmitting data, and the first primary network device is transmitted from the secondary network device. The confirmation message of the connection addition request message is received, the confirmation message of the secondary connection addition request message includes the arrangement information of the secondary connection, and the arrangement information of the secondary connection is the secondary of the secondary network device and the terminal device. It is used to establish a connection, the first primary network device acquires the arrangement information of the secondary connection, and the first primary network device transmits the arrangement information of the secondary connection to the terminal device. Including that.

The secondary connection addition request message optionally includes at least one of measurement result information of the secondary network device, access capability information of the terminal device, and quality of service (abbreviated as "QoS"). Based on this information, the secondary network device determines whether or not to allow the establishment of the secondary connection, and the secondary network device establishes the secondary connection based on this information and the current load state of the secondary network device. When it is confirmed to allow, the confirmation message of the secondary connection addition request message is returned to the first primary network device, the confirmation message includes the arrangement information of the secondary connection, and the arrangement information of the secondary connection is the secondary connection. If it is used for establishment and it is determined that the secondary network device does not allow the establishment of the secondary connection based on this information, the failure instruction information is returned to the first primary network device, and the failure instruction information is sent to the secondary network. This includes reasons such as the QoS of the device cannot meet the data transmission, the link quality of the secondary network device is too low, the secondary network device is currently congested, and other reasons are not allowed to establish a secondary connection. .. When the first primary network device receives the measurement result information of the secondary network device reported from the terminal device, the first primary network device sends the secondary network device to the secondary network device based on the reason for failure in the failure instruction information. It is possible to determine whether or not to transmit the measurement result information. For example, when the reason for the failure of the secondary network device is network congestion and the measurement result information of the secondary network device is received, the measurement is performed to the secondary network device. It is not necessary to transmit the result information, and the power consumption can be reduced in this way.

As one selectable embodiment, the method further comprises the method before the first primary network receives measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the primary network device. The first primary network device transmits the first instruction information to the terminal device, and the first instruction information instructs the terminal device to transmit the measurement result information to the first primary network device. It is included in that the terminal device receives the first instruction information transmitted from the first primary network device, wherein the first primary network device is used by the terminal device. Receiving the measurement result information of the secondary network device transmitted in the process of accessing the primary network device further means that the first primary network device transmits the terminal device based on the first instruction information. Includes receiving measurement result information.

Further, the first instruction information may be used to instruct the terminal device to report the measurement result information of the secondary network device, for example, a method of reporting the measurement result information and a method of reporting the measurement result information. Specifically, the first instruction information can instruct the terminal device to include the measurement result information in the RRC connection establishment request message and report it, and the RRC connection establishment completion message may be used. You can instruct the terminal device to include the measurement result information and report it, or you can instruct the terminal device to include the measurement result information in the measurement report and report it, and the handover completion information includes the measurement result. It is also possible to instruct the terminal device to include and report the information, and the embodiments of the present invention are not limited to this. Of course, the first instruction information can also indicate a specific byte position of the specific measurement result information in the above information.

Optionally, the method can further allow the terminal device to send a third instruction information to the first primary network device before the first primary network device sends the first instruction information to the terminal device. , The first primary network device receives the third instruction information from the terminal device, and the third instruction information indicates whether or not the terminal device stores the measurement result instruction information of the secondary network device. In addition to being used, the terminal device can include a third instructional information in an uplink message sent to the first primary network device, eg, in some uplink messages, the special byte position is zero. In this case, it indicates that the terminal device does not store the measurement instruction information, and when the special bite position is 1, it indicates that the terminal device stores the measurement instruction information. When the first primary network device receives the third instruction information transmitted from the terminal device and confirms that the terminal device stores the measurement result instruction information, the first instruction information is transmitted to the terminal device. Then, instruct the terminal device to report the measurement result information.

As one selectable embodiment, the first primary network apparatus determines the establishment of a secondary connection between the secondary network apparatus and the terminal apparatus based on the measurement result information. Includes determining the establishment of a secondary connection between the secondary network device and the terminal device based on the load status of the first primary network device and the measurement result information.

Specifically, it is possible to determine whether or not the first primary network device establishes a secondary connection based on its own load state and the measurement result information of the secondary network device, for example, the first primary network. If the equipment load is light, the number of terminal equipment currently being accessed is low, and the channel quality of the secondary network equipment is normal, then the primary network equipment is determined not to establish a secondary connection, thus If there is no need to send a secondary connection add request message to the secondary network device, the primary network device is congested, and the channel quality of the secondary network device is higher than the channel quality of the primary network device, the first Determines that the primary network device needs to establish a secondary connection, sends a secondary connection addition request message to the secondary network device, and requests the secondary network device to share the load of the primary network device.

As one selectable embodiment, the confirmation message of the secondary connection addition request message further includes the identifier information of at least one secondary cell, and the at least one secondary cell is a cell that is serviced by the secondary network. After the first primary network device determines the establishment of the secondary connection between the secondary network device and the terminal device based on the measurement result information, the method further causes the first primary network device to connect to the terminal device. The terminal device transmits the identifier information of the at least one secondary cell, the terminal device receives the identifier information of the at least one secondary cell transmitted from the first primary network device, and the terminal device receives the identifier information of the at least one secondary cell based on the identifier information. Includes accessing at least one secondary cell.

Specifically, when the secondary network device receives the secondary connection addition request message, the secondary connection is established based on the measurement result information of the secondary network device included in the secondary connection addition request message and the load status of the secondary network device itself. When deciding whether to allow or not and permitting the establishment of the secondary connection, a confirmation message of the secondary connection addition request message is returned to the first primary network device, and at least one other than the secondary connection placement information is sent to the confirmation message. The identifier information of one secondary cell, for example, the cell identifier list may be included, and the first primary network apparatus terminals the identifier information of the at least one secondary cell after receiving the confirmation message of the secondary connection addition request message. It sends to the device, which allows the terminal device to access the corresponding secondary cell based on the cell identifier information.

As one selectable embodiment, after the first primary network device establishes the secondary connection, the method further transmits the second instruction information to the secondary network device. The secondary network device receives the second instruction information transmitted from the first primary network device, and the second instruction information transmits the first control plane data to the secondary network device. Includes being used to direct.

Specifically, the first control plane data of the terminal device may be transmitted directly by the secondary network device, the first control plane data is transmitted to the secondary network device via the primary network, and the terminal is transmitted by the secondary network device. It may be transmitted to the device, so if the first control plane data is transmitted over the primary network to the secondary network device and then needs to be transmitted to the terminal device, the first primary network device is the secondary network. By transmitting the second instruction information to the device, the secondary network device can be instructed to transmit the first control plane data, that is, the first control plane data is transmitted by the method of network device arrangement. The secondary network device can be notified to do so.

As one selectable embodiment, in the method, the first primary network apparatus further transmits the arrangement information of the primary connection to the terminal apparatus, and the arrangement information of the primary connection is obtained by the terminal apparatus. It is used to establish a primary connection with a primary network device, including that the primary connection is used to transmit data.

Optionally, the data packet comprises a first control plane data and a second control plane data.

Specifically, when the network side needs to transmit the control plane data to the terminal side, the control plane data may be transmitted by the primary connection, and in this case, the first primary network device is the arrangement information of the primary connection. Is required to be transmitted to the terminal device, and when the control plane data is transmitted by the secondary connection, the first primary network device transmits the arrangement information of the secondary connection to the terminal device, and the first control plane data is transmitted. When transmitted by the secondary connection and the second control plane data is transmitted by the primary connection, the first primary network device sends the secondary connection placement information and the primary connection placement information to the terminal device, and the primary connection placement The information and the arrangement information of the secondary connection may be transmitted to the terminal device at the same time, or may be sequentially transmitted to the terminal device, and the embodiment of the present invention is not limited to this.

As one selectable embodiment, the first primary network device is a network device in a long-term evolution (LTE) network device, and the secondary network device is a network device in a 5G network.

It should be understood that the control plane data described in the embodiments of the present invention may be, for example, RRC signaling, and the user plane data may be, for example, user-specific pairer data.

Optionally, the data between the terminal device access network device and the core network device may be transmitted directly to the core network device via the primary network device, or the primary network device and the secondary network device. Each may be transmitted to the core network device via the primary network device, or may be transmitted directly to the core network device via the secondary network device, or partial data may be transmitted to the core network device via the first primary network device. The data of another part is transmitted directly to the secondary network device via the first primary network device, and further transmitted to the terminal device by the secondary network device, and the embodiment of the present invention is not limited to this.

The data transmission method according to the embodiment of the present invention will be described below with reference to FIGS. 3 to 6.

FIG. 3 shows an execution process of the data transmission method according to the embodiment of the present invention when the measurement result information is included in the RRC connection establishment request message.

In S301, the terminal device determines the measurement result information and executes the measurement for the secondary network device.

Selectably, the measurement result information represents the network status of the secondary network device, the terminal device can measure the secondary network device based on the arrangement information in the system message, and the terminal device is the first primary network device. It is also possible to measure the secondary network device based on the instruction information, and the embodiment of the present invention is not limited to this.

In S302, the terminal device transmits an RRC connection request message to the first primary network device, and the connection establishment request message includes measurement result information.

Selectably, it is one preferred practice that the terminal device sends an RRC connection establishment request message to the first primary network device when the service needs to be transmitted, and the RRC connection establishment request message contains the measurement result information. As an example only, the measurement result information in the embodiment of the present invention may be reported to the first primary network device by another method.

In S303, the first primary network device transmits an RRC connection establishment message to the terminal device.

In S304, the terminal device transmits an RRC connection establishment completion message to the first primary network device.

In S305, whether or not the first primary network device sends a secondary connection addition request message to the secondary network device based on at least one of the measurement result information of the secondary network device and the load state of the first primary network device. If the first primary network device confirms the establishment of the secondary connection based on at least one of the measurement result information and the load state, a secondary connection addition request message is sent to the secondary network device, and the message is transmitted. The secondary connection addition request message contains the measurement result information of the secondary network device.

It should be understood that the number of secondary network devices measured by the terminal device may be one or more, and the first primary network device receives the measurement result information and then goes to the one or more secondary network devices. A secondary connection addition request message can be sent, and of course, the first primary network device makes a secondary connection addition request to a part of the secondary network devices based on its own load status and measurement result information. The message can be transmitted, that is, the current load state of the first primary network apparatus may be shared only by the partial secondary networks, and the embodiments of the present invention are not limited thereto.

In S306, when the secondary network device receives the secondary connection addition request message transmitted from the first primary network device, the secondary connection is made based on the measurement result information in the additional request message and the network load state of the secondary network device itself. When deciding whether to allow the establishment and permitting the establishment of the secondary connection, a confirmation message of the secondary connection addition request message is returned to the first primary network device, and the confirmation message includes the arrangement information of the secondary connection. The placement information of the secondary connection is used to establish the secondary connection.
In S307, when the secondary network device refuses to establish the secondary connection, the failure instruction information is returned to the first primary network device, and the QoS of the secondary network device satisfies the data transmission in the failure instruction information. The embodiment of the present invention is not limited to this, including reasons for not allowing the establishment of a secondary connection, such as the inability to do so, the link quality of the secondary network device being too low, and the secondary network device being currently in a congested state.

In S308, when the first primary network device receives the first measurement result information transmitted from the secondary network device after S306, the arrangement information of the secondary connection is transmitted to the terminal device and can be selected. The arrangement information of the secondary connection can be included in the RRC connection reconfiguration message and transmitted to the terminal device.

In S309, the terminal device sends an RRC connection establishment reconstruction completion message to the first primary network device, and then the terminal device establishes a secondary connection with the secondary network device based on the arrangement information of the secondary connection and transmits data. The data may be control plane data and / or user plane data.

FIG. 4 shows an execution process of the data transmission method according to the embodiment of the present invention when the measurement result information is included in the RRC connection establishment completion message.

In S401, the terminal device determines the measurement result information and executes the measurement for the secondary network device.

Selectably, the measurement result information represents the network status of the secondary network device, the terminal device can measure the secondary network device based on the arrangement information in the system message, and the terminal device is the first primary network device. It is also possible to measure the secondary network device based on the instruction information, and the embodiment of the present invention is not limited to this.

In S402, the terminal device sends an RRC connection request message to the first primary network device.

In S403, the first primary network device sends an RRC connection establishment message to the terminal device.

In S404, the terminal device transmits an RRC connection establishment completion message to the first primary network device, and the measurement result information of the secondary network device is included in the RRC connection establishment completion message.

Selectably, the RRC connection establishment completion message includes the measurement result information in only one preferred embodiment, and in the embodiment of the present invention, the measurement result information is reported to the first primary network apparatus by another method. You may.

Understanding The execution order of S401, S402, and S403 is not limited, and S401 need only be in front of S404.

In S405, whether or not the first primary network device sends a secondary connection addition request message to the secondary network device based on at least one of the measurement result information of the secondary network device and the load state of the first primary network device. If the first primary network device confirms the establishment of the secondary connection based on at least one of the measurement result information and the load state, a secondary connection addition request message is sent to the secondary network device, and the message is transmitted. The secondary connection addition request message contains the measurement result information of the secondary network device,
In S406, when the secondary network device receives the secondary connection addition request message transmitted from the first primary network device, the secondary connection is made based on the measurement result information in the additional request message and the network load state of the secondary network device itself. When deciding whether to allow the establishment and permitting the establishment of the secondary connection, a confirmation message of the secondary connection addition request message is returned to the first primary network device, and the confirmation message includes the arrangement information of the secondary connection. The placement information of the secondary connection is used to establish the secondary connection.
In S407, when the secondary network device refuses to establish the secondary connection, the failure instruction information is returned to the first primary network device, and the QoS of the secondary network device satisfies the data transmission in the failure instruction information. The reason for not allowing the establishment of the secondary connection is included, such as the inability to do so, the link quality of the secondary network device being too low, and the secondary network device being currently in a congested state.
In S408, when the first primary network device receives the first measurement result information transmitted from the secondary network device after S406, the arrangement information of the secondary connection is transmitted to the terminal device and can be selected. The placement information of the secondary connection can be included in the RRC connection reconfiguration message and sent to the terminal device.
In S409, the terminal device sends an RRC connection establishment reconstruction completion message to the first primary network device, and then the terminal device establishes a secondary connection with the secondary network device based on the arrangement information of the secondary connection and transmits data. The data may be control plane data and / or user plane data.

5 and 6 show a data transmission method in the handover scene of the embodiment of the present invention.

FIG. 5 shows an execution process of the data transmission method according to the embodiment of the present invention when the measurement result information is included in the handover request message.

In S501, the terminal device determines the measurement result information and executes the measurement for the secondary network device.

Selectably, the measurement result information reflects the network status of the secondary network device, the terminal device can measure the secondary network device based on the arrangement information in the system message, and the terminal device is the first primary network device. It is also possible to measure the secondary network device based on the instruction information of the present invention, and the embodiment of the present invention is not limited to this.

It should be understood that the secondary network device measured by the terminal device in the handover process may be the secondary network device of the first primary network device 110 and the secondary network device of the second primary network device 140. The embodiment of the present invention is not limited to this, as it may be a secondary network device in another primary network device.

In S502, when the terminal device transmits the measurement report to the second primary network device 140, the measurement result information of the secondary network device is included in the measurement report and transmitted to the second primary network device 140, and the measurement report is transmitted. , A measurement report generated in the process of transmitting data between the terminal device and the second primary network device.

In S503, when the second primary network device 140 receives the measurement report transmitted from the terminal device, it determines whether or not it is necessary to perform a handover based on the current communication quality information shown in the measurement report. When it is necessary to perform a handover, the measurement result information in the measurement report is included in the handover request message and transmitted to the first primary network device.
It should be understood that the second primary network device is based on the current network topology structure, which secondary network device is the first primary network device, and the measurement result information corresponding to the first primary network device. Can be sent to the first primary network device.

In S504, when the first primary network device receives the handover request message, it is necessary to establish a secondary connection based on the measurement result information included in the handover request message and its own network state. When it is necessary to confirm and establish a secondary connection, a secondary connection addition request message is sent to the secondary network device, and the secondary connection addition request message includes the measurement result information of the secondary network device.
In S505, when the secondary network device receives the secondary connection addition request message transmitted from the first primary network device, the secondary is based on the measurement result information in the secondary connection addition request message and the network load state of the secondary network device itself. When deciding whether to allow the establishment of the connection and permitting the establishment of the secondary connection, a confirmation message of the secondary connection addition request message is returned to the first primary network device, and the secondary connection placement information is sent to the confirmation message. Is included, and the placement information of the secondary connection is used to establish the secondary connection.

In S506, when the secondary network device refuses to establish the secondary connection, the failure instruction information is returned to the first primary network device, and the QoS of the secondary network device satisfies the data transmission in the failure instruction information. Reasons for not allowing the establishment of a secondary connection, such as the inability to do so, the link quality of the secondary network device being too low, and the secondary network device being currently congested.

In S507, after S505, the first primary network device transmits a confirmation message of the handover request message to the second limary network device, and the confirmation message includes the arrangement information of the secondary connection.

In S508, after receiving the confirmation message of the handover request message, the second remote network device transmits the arrangement information of the secondary connection to the terminal device, and the arrangement information of the secondary connection is reconfigured by RRC connection so as to be selectable. It may be included in a message and sent to the terminal device.

In S509, the terminal device sends an RRC connection reconfiguration completion message to the first limary network device, and then the terminal device establishes a secondary connection with the secondary network device based on the arrangement information of the secondary connection and outputs data. It can be transmitted and the data may be control plane data and / or user plane data.

FIG. 6 shows an execution process of the data transmission method according to the embodiment of the present invention when the measurement result information is included in the handover completion message.

In S601, the terminal device determines the measurement result information and executes the measurement for the secondary network device.

Selectably, the measurement result information reflects the network status of the secondary network device, the terminal device can measure the secondary network device based on the arrangement information in the system message, and the terminal device is the first primary network device. It is also possible to measure the secondary network device based on the instruction information of the present invention, and the embodiment of the present invention is not limited to this.

It should be understood that the secondary network device measured by the terminal device during the handover process may be the secondary network device of the first primary network device 110 and the secondary network device of the second primary network device 140. It may be a secondary network device in another primary network device, and the embodiments of the present invention are not limited to this.

In S602, the terminal device transmits a measurement report to the second primary network device 140, and the measurement report is a measurement report generated in the process of transmitting data between the terminal device and the second primary network device.

In S603, when the second primary network device 140 receives the measurement report transmitted from the terminal device, it determines whether or not to perform a handover based on the current communication quality information shown in the measurement report, and performs a handover. If necessary, the second primary network device sends a handover request message to the first primary network device.

It should be understood that the second primary network device is based on the current network topology structure, which secondary network device is the first primary network device, and the measurement result information corresponding to the first primary network device. Can be sent to the first primary network device.

In S604, when it is determined that the first primary network device can be handed over, a confirmation message of the handover request message is transmitted to the second primary network device.
In S605, the second primary network device is used to transmit the handover instruction information to the terminal device, and the handover instruction information instructs the terminal device to access the first primary network device, that is, the second. The primary network device may be understood as a source network device, and the first primary network device may be understood as a target network device.

In S606, the terminal device transmits a handover completion message to the first primary network device, and the handover completion message includes the measurement result information of the secondary network device.
It should be understood that the order of S601 and S602, S603, S604 and S605 is not limited, as long as S601 precedes S606.

In S607, when the first primary network device receives the handover completion message, a secondary connection is established based on the measurement result information included in the handover completion message and the current load state of the first primary network device. When it is decided whether or not to do so and it is decided that it is necessary to establish a secondary connection, the measurement result information corresponding to each of the secondary network devices of the first primary network device is sent to the secondary network device of the first primary network device based on the current network topology structure. It is transmitted, and the measurement result information is included in the secondary connection addition request message and transmitted to the secondary network device.

In S608, when the secondary network device receives the secondary connection addition request message transmitted from the first primary network device, the secondary connection is made based on the measurement result information in the additional request message and the network load state of the secondary network device itself. When deciding whether to allow the establishment and permitting the establishment of the secondary connection, a confirmation message of the secondary connection addition request message is returned to the first primary network device, and the confirmation message includes the arrangement information of the secondary connection. The placement information of the secondary connection is used to establish the secondary connection.

In S609, when the secondary network device refuses to establish the secondary connection, the failure instruction information is returned to the first primary network device, and the QoS of the secondary network device satisfies the data transmission in the failure instruction information. Reasons for not allowing the establishment of a secondary connection, such as the inability to do so, the link quality of the secondary network device being too low, and the secondary network device being currently congested.

In S610, after S608, the first primary network device sends an RRC connection reconfiguration message to the terminal device, and the RRC connection reconfiguration message includes secondary connection placement information.

In S611, the terminal device transmits an RRC connection reconfiguration completion message to the first limary network device, and then the terminal device establishes a secondary connection with the secondary network device based on the arrangement information of the secondary connection and transmits data. The data may be control plane data and / or user plane data.

FIG. 7 is a schematic diagram of a data transmission device 700 according to an embodiment of the present invention, which device may be, for example, a first primary network device, which device 700 is a receive module 710, a confirmation module 720, and an establishment module 730. To be equipped with.

The receiving module 710 is configured to receive the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device, and the measurement result information is the secondary network device and the terminal device. Used to indicate the quality of the link between.

The confirmation module 720 is configured to confirm the establishment of a secondary connection between the secondary network device and the terminal device based on the link quality between the secondary network device and the terminal device.

The establishment module 730 is configured to establish the secondary connection.

As one selectable embodiment, the receive module 710 is specifically configured to receive the measurement result information contained in the radio resource control (RRC) connection establishment request message or the RRC connection establishment completion message. ..

As one selectable embodiment, the receiving module 710 is specifically configured to receive the measurement result information included in the handover completion message transmitted from the terminal device, and the handover completion message is displayed. Further, it is used to indicate that the network device that provides the service to the terminal device has already been handed over from the second primary network device to the device 700.

As one selectable embodiment, the receive module 710 specifically receives the measurement result information included in the handover request message transmitted by the first primary network device from the second primary network device. To request the network device that provides the service to the terminal device that the handover request message needs to be further handed over from the second primary network device to the first primary network device. Used for.

As one selectable embodiment, the establishment module 730 specifically receives the handover request message transmitted from the second primary network device, and then sends the handover request message to the second primary network device. It is configured to transmit a confirmation message, the confirmation message of the handover request message includes the arrangement information of the secondary connection, and the second primary network device transmits the arrangement information of the secondary connection to the terminal device. The arrangement information of the secondary connection is used to establish the secondary connection between the secondary network device and the terminal device.

Optionally, the establishment module 730 may include a transmission unit configured to transmit a confirmation message of the handover request message to the second primary network apparatus.

As one selectable embodiment, the device 700 further gives a first instruction to the terminal device before receiving the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the primary network device. It comprises a first transmission module configured to transmit information, wherein the first instruction information is used to instruct the terminal apparatus to transmit the measurement result information to the first primary network apparatus. The receiving module 710 is specifically configured to receive the measurement result information transmitted by the terminal device based on the first instruction information.

As one selectable embodiment, the establishment module 730 specifically sends a secondary connection addition request message to the secondary network device, and the secondary connection addition request message is a network for transmitting data to the secondary network device. It is used to request to be added as a device, receives the confirmation message of the secondary connection addition request message sent from the secondary network device, and receives the confirmation message of the secondary connection addition request message, and the arrangement information of the secondary connection is added to the confirmation message of the secondary connection addition request message. Is included, and the arrangement information of the secondary connection is used to establish the secondary connection between the secondary network device and the terminal device, obtains the arrangement information of the secondary connection, and connects the secondary connection to the terminal device. It is configured to send placement information.

Optionally, the establishment module 730 may include a transmit unit, a receive unit, an acquire unit, a transmit unit, wherein the transmit unit is configured to send a secondary connection addition request message to said secondary network device and receive. The unit is configured to receive a confirmation message of the secondary connection addition request message transmitted from the secondary network device, the acquisition unit is configured to acquire the placement information of the secondary connection, and the transmitting unit is configured to acquire the terminal device. It is configured to transmit the arrangement information of the secondary connection to.

As one selectable embodiment, the confirmation module 720 establishes a secondary connection between the secondary network device and the terminal device, specifically based on the load status of the first primary network device and the measurement result information. It is configured to be finalized.

As one selectable embodiment, the device 700 is further configured to transmit primary connection placement information to the terminal device, the primary connection placement information being the primary connection of the terminal device to the device 700. The primary connection comprises a second transmit module used to establish the data.

As one selectable embodiment, the device 700 is a network device in a long-term evolution (LTE) network and the secondary network device is a network device in a 5G network device.

As one selectable embodiment, the secondary connection is used to transmit first control plane data and / or user plane data.

As should be understood, the device 700 here is embodied in the form of a functional module. The term "module" herein refers to an application specific integrated circuit (ASIC), an electronic circuit, or a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor, or a group processor). Etc.) and memory, combined logic circuits and / or other suitable components that support the functions described. In one selectable example, one of ordinary skill in the art may appreciate that the device 700 is specifically the first primary network device of the above embodiment, and the device 700 is the first primary network device of the above embodiment. It may be used to perform each process and / or step corresponding to the above, and the description thereof is omitted here to avoid repetition.

FIG. 8 is another schematic block diagram of the data transmission device 800 according to the embodiment of the present invention. For example, the device may be a terminal device, and the device 800 includes a transmission module 810, a reception module 820, and an access module 830. Be prepared.

In the transmission module 810, the device 800 transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, and the first primary network device uses the measurement result information as the measurement result information. Based on this, it is configured to acquire the arrangement information of the secondary connection, and the measurement result information is used to indicate the link quality between the secondary network device and the device 800.

The receiving module 820 is configured to receive the arrangement information of the secondary connection transmitted from the first primary network device, and the arrangement information of the secondary connection is the secondary connection between the secondary network device and the device 800. Used for establishment.

The access module 830 is configured to access the secondary network device based on the arrangement information of the secondary connection.

As one selectable embodiment, the transmission module 810 specifically transmits the measurement result information to the first primary network apparatus by a radio resource control (RRC) connection establishment request message or an RRC connection establishment completion message. It is configured as follows.

As one selectable embodiment, the transmission module 810 specifically transmits measurement result information from the device 800 to the first primary network device via the second primary network device. The measurement report transmitted to the second primary network device includes the second primary network device so as to transmit a handover request message to the first primary network device based on the measurement report. The device 800 is serviced that the handover request message includes the measurement result information and that the handover request message needs to be further handovered from the second primary network device to the first primary network device. It is used to make a request to the provided network device.

As one selectable embodiment, the transmission module 810 is specifically configured to transmit the measurement result information to the first primary network apparatus by a handover completion message, and the handover completion message is further described. It is used to indicate that the network device servicing the device 800 has already been handed over from the second primary network device to the first primary network device.

As one selectable embodiment, the receiving module 820 further sends measurement result information of the secondary network device to the first primary network device in the process of the device 800 accessing the first primary network device. The device is configured to receive the first instruction information transmitted from the first primary network device, and the first instruction information transmits the measurement result information to the first primary network device. The transmission module 810 is used to instruct the 800, and the measurement result information is specifically sent to the first primary network device in the process of accessing the first primary network device based on the first instruction information. Is configured to send.

As one selectable embodiment, the transmission module 810 is specifically before the device 800 transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device. In addition, when the channel quality between the device 800 and the secondary network device satisfies the preset condition, the measurement result of the device 800 to the first primary network device in the process of accessing the first primary network device. It is configured to send information.

As one selectable embodiment, the receiving module 810 is further configured to receive primary connection placement information transmitted from the first primary network device, the primary connection placement information being the device 800. Is used to establish a primary connection with the first primary network device, and the primary connection is used to transmit data.

As should be understood, the device 800 here is embodied in the form of a functional module. The term "module" herein refers to an ASIC, an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor or a group processor, etc.) and a memory, a combination logic circuit and / or description. It may be another suitable member that supports the function to be performed. In one selectable example, one of ordinary skill in the art can understand that the device 800 may specifically be the terminal device of the above embodiment, and each corresponding device 800 corresponds to the terminal device of the above embodiment. It may be used to perform processes and / or steps, and the description is omitted here to avoid repetition.

FIG. 9 is a schematic block diagram of a data transmission device 900 according to an embodiment of the present invention. For example, the device may be a second primary network device, and the device 900 includes a reception module 910 and a transmission module 920. ..

The receiving module 910 is configured to receive the measurement result information transmitted from the terminal device, and the measurement result information is used to indicate the link quality between the secondary network device and the terminal device.

The transmission module 920 transmits the measurement result information to the first primary network device, and the first primary network device establishes a secondary connection between the secondary network device and the terminal device based on the measurement result information. The first primary network device is a target network device that is configured to be finalized and the device is handovered by the terminal device, and the device is a source network device that is handovered by the terminal device.

As one selectable embodiment, the receiving module 910 is specifically configured to receive the measurement result information contained in the measurement report, and the transmitting module 920 is specifically configured to receive the handover request message. The measurement result information is configured to be transmitted to one primary network device, and the handover request message needs to be further handed over from the second primary network device to the first primary network device. It is used to make a request to a network device that provides services to a terminal device.

As one selectable embodiment, the receiving module 910 is further transmitted from the first primary network device after the device has transmitted the measurement result information to the first primary network device by a handover request message. It is configured to receive the arrangement information of the secondary connection included in the confirmation message of the handover request message, and the arrangement information of the secondary connection is used for establishing the secondary connection between the secondary network device and the terminal device. The transmission module 920 is further configured to transmit the arrangement information of the secondary connection to the terminal device.

As should be understood, the device 900 here is embodied in the form of a functional module. The term "module" herein refers to an ASIC, an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor or a group processor, etc.) and a memory, a combination logic circuit and / or description. It may be another suitable member that supports the function to be performed. In one selectable example, one of ordinary skill in the art can understand that the device 900 may specifically be the second primary network device in the above embodiment, and the device 900 is the second in the embodiment of the above method. It may be used to perform each process and / or step corresponding to the primary network device of the above, and the description thereof is omitted here to avoid repetition.

FIG. 10 is an outline of a data transmission device 1000 according to an embodiment of the present invention. For example, the device may be a secondary network device, and the device 1000 includes a reception module 1010 and a transmission module 1020.

The receiving module 1010 is configured to receive the secondary connection addition request message transmitted from the first primary network device, and the secondary connection addition request message requests the establishment of a secondary connection between the secondary network device and the terminal device. The secondary connection is used to transmit data, the data including a first control plane data and a user plane data.

The transmission module 1020 is configured to transmit the arrangement information of the secondary connection to the first primary network device based on the secondary connection addition request message, and the arrangement information of the secondary connection is used for establishing the secondary connection. ..

As one selectable embodiment, the transmission module 1020 is specifically configured such that the secondary network device transmits a confirmation message of the secondary connection addition request message to the first primary network device, and the secondary connection addition The confirmation message of the request message includes the arrangement information of the secondary connection.

As one selectable embodiment, the confirmation message of the secondary connection addition request message also contains the identifier information of at least one secondary cell, and the at least one secondary cell is a cell provided by the secondary network device. is there.

As one selectable embodiment, the secondary connection addition request message includes auxiliary information, which is at least one of measurement result information, access capability information of the terminal device, and data service quality (QoS) information. The measurement result information includes one and is used to indicate the link quality information between the secondary network device and the terminal device.

As one selectable embodiment, when the secondary network device transmits the arrangement information of the secondary connection to the first primary network device based on the secondary connection addition request message, the secondary network device causes the auxiliary information. And the arrangement information of the secondary connection is transmitted to the first primary network device based on the load status of the secondary network device.

As should be understood, the device 1000 here is embodied in the form of a functional module. The term "module" herein refers to an ASIC, an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor or a group processor, etc.) and a memory, a combination logic circuit and / or description. It may be another suitable member that supports the function to be performed. In one selectable example, one of ordinary skill in the art can understand that the device 1000 may specifically be the secondary network device in the above embodiment, and the device 1000 corresponds to the secondary network device in the embodiment of the above method. It may be used to perform each process and / or step to be performed, and the description is omitted here to avoid repetition.

FIG. 11 is a schematic structural diagram of a system 1100 for transmitting data according to an embodiment of the present invention. The communication system 1100 includes a device 700 and a device 800.

FIG. 12 is a schematic structural diagram of a system 1200 for transmitting data according to an embodiment of the present invention. The communication system includes device 700, device 800 and device 900.

FIG. 13 is a schematic structural diagram of the system 1300 for transmitting data according to the embodiment of the present invention. The communication system includes device 700, device 800 and device 1000.

FIG. 14 is a schematic view of a data transmission device 1400 according to an embodiment of the present invention. The device 1400 includes a receiver 1410, a processor 1420, a transmitter 1430, a memory 1440 and a bus system 1450. Here, the receiver 1410, the processor 1420, the transmitter 1430 and the memory 1440 are connected via the bus system 1450, the memory 1440 is used to store instructions, and the processor 1420 is stored in the memory 1440. It is used to execute a command, control the receiver 1410 to receive a signal, and control the transmitter 1430 to transmit a command.

Here, the receiver 1410 is configured to receive the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device, and the measurement result information is the secondary network device and the said. Used to indicate the link quality between the terminal devices, the processor 1420 is used to determine the establishment of a secondary connection between the secondary network device and the terminal device based on the link quality between the secondary network device and the terminal device. Configured, the processor 1420 is configured to establish the secondary connection.

It should be understood that device 1400 may specifically be the first primary network device in the above embodiment, and each process and / or process corresponding to the first primary network device in the embodiment of the above method. It may be used to perform. Optionally, the memory 1440 includes read-only memory and random access memory, which can provide instructions and data to the processor. Part of the memory can further include non-volatile random access memory. For example, the memory can further store device type information. The processor 1420 may be used to execute an instruction stored in memory, and when the processor executes the instruction, the processor corresponds to the first primary network device in the embodiment of the above method. Each step can be performed.

FIG. 15 is a schematic view of a data transmission device 1500 according to an embodiment of the present invention. The device 1500 includes a receiver 1510, a processor 1520, a transmitter 1530, a memory 1540 and a bus system 1550. Here, the receiver 1510, the processor 1520, the transmitter 1530 and the memory 1540 are connected via the bus system 1550, the memory 1540 is used to store instructions, and the processor 1520 is stored in the memory 1540. It is used to execute a command, control the receiver 1510 to receive a signal, and control the transmitter 1530 to transmit a command.

Here, in the transmitter 1530, the device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, and the first primary network device performs the measurement. The receiver 1510 is configured to acquire the placement information of the secondary connection based on the result information, and the measurement result information is used to indicate the link quality between the secondary network device and the device. It is configured to receive the placement information of the secondary connection transmitted from the first primary network device, and the processor 1520 is configured to access the secondary network device based on the placement information of the secondary connection. ..

It should be understood that the device 1500 may specifically be the terminal device in the above embodiment and may be used to perform each step and / or process corresponding to the terminal device in the embodiment of the above method. Good. Optionally, the memory 1540 includes read-only memory and random access memory, which can provide instructions and data to the processor. Part of the memory can further include non-volatile random access memory. For example, the memory can further store device type information. The processor 1520 may be used to execute an instruction stored in memory, and when the processor executes the instruction, the processor executes each step corresponding to the terminal device in the embodiment of the above method. can do.

FIG. 16 is a schematic view of a data transmission device 1600 according to an embodiment of the present invention. The device 1600 includes a receiver 1610, a processor 1620, a transmitter 1630, a memory 1640 and a bus system 1650. Here, the receiver 1610, the processor 1620, the transmitter 1630 and the memory 1640 are connected via the bus system 1650, the memory 1640 is used to store instructions, and the processor 1620 is stored in the memory 1640. It is used to execute a command, control the receiver 1610 to receive a signal, and control the transmitter 1630 to transmit a command.

Here, the receiver 1610 is configured to receive the measurement result information transmitted from the terminal device, and the measurement result information is used to indicate the link quality between the secondary network device and the terminal device, and the transmitter is used. In 1630, the device 1600 transmits the measurement result information to the first primary network device in the process of accessing the first primary network device, and the first primary network device is based on the measurement result information. It is configured to establish a secondary connection between the secondary network device and the terminal device.

It should be understood that the device 1600 may specifically be the second primary network device in the above embodiment, and each step and / or process corresponding to the second primary network device in the embodiment of the above method. It may be used to perform. Optionally, the memory 1640 includes a read-only memory and a random access memory, which can provide instructions and data to the processor. Part of the memory can further include non-volatile random access memory. For example, the memory can further store device type information. The processor 1620 may be used to execute an instruction stored in memory, and when the processor executes the instruction, the processor corresponds to a second primary network device in an embodiment of the above method. Each step can be performed.

FIG. 17 is a schematic view of a data transmission device 1700 according to an embodiment of the present invention. The device 1700 includes a receiver 1710, a processor 1720, a transmitter 1730, a memory 1740 and a bus system 1750. Here, the receiver 1710, the processor 1720, the transmitter 1730 and the memory 1740 are connected via the bus system 1750, the memory 1740 is used to store instructions, and the processor 1720 is stored in the memory 1740. It is used to execute a command, control the receiver 1710 to receive a signal, and control the transmitter 1730 to transmit a command.

Here, the receiver 1710 is configured to receive the secondary connection addition request message transmitted from the first primary network device, and the secondary connection addition request message establishes a secondary connection between the secondary network device and the terminal device. The transmitter 1730 is configured to transmit the arrangement information of the secondary connection to the first primary network device based on the secondary connection addition request message, and the arrangement information of the secondary connection is used to establish the secondary connection. Used for.

As should be understood, device 1700 may specifically be the secondary network device in the above embodiment and is used to perform each step and / or process corresponding to the secondary network device in the embodiment of the above method. You may. Optionally, the memory 1740 includes read-only memory and random access memory, which can provide instructions and data to the processor. Part of the memory can further include non-volatile random access memory. For example, the memory can further store device type information. The processor 1720 may be used to execute an instruction stored in memory, and when the processor executes the instruction, the processor performs each step corresponding to the secondary network device in the embodiment of the above method. Can be executed.

It should be understood that in the embodiments of the present invention, the processor 1420, processor 1520, processor 1620 and processor 1720 may be central processing units (CPUs), and the processors may be other general purpose processors, digital signal processors. (DSP), application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistors. The general purpose processor may be a microprocessor, or the processor may be any conventional processor or the like.

As it should be understood, the terms "and / or" herein are only for describing the relationships of related objects, indicating that there may be three types of relationships, A and /. Alternatively, B can indicate three situations: A exists alone, A and B exist at the same time, and B exists alone. Further, in the present specification, the character "/" generally indicates that the related objects before and after the relationship are "or".

In various embodiments of the present invention, the magnitude of the numbers in each of the above processes does not imply an order of execution, and the order of execution of each process should be determined by its function and internal logic. It should be understood that no limitation should be constructed in the process of implementation of.

Those skilled in the art may implement the units and algorithm steps of each example described in combination with the embodiments disclosed herein in electronic hardware, or in combination with computer software and electronic hardware. Can be understood. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional engineers may achieve the functionality described using different methods for each particular application, but such realization should not be considered beyond the scope of the present invention.

Those skilled in the art can refer to the corresponding processes in the embodiments of the above method for the specific operating processes of the systems, devices and units described above for convenience and concise description, and clearly understand that the description is omitted here. can do.

It should be understood that in some of the examples provided by this application, the disclosed systems, devices and methods may be implemented in other ways. For example, the embodiment of the above-mentioned device is only an example, for example, the division of the unit is only a logic functional division, and there may be other division methods at the time of actual implementation, for example, a plurality of units. Alternatively, the components may be combined or integrated into another system, or some features may be ignored or may not be implemented. Also, the interconnected or direct coupled or communication connection shown or discussed may be an indirect coupling or communication connection via some interface, device or unit, and may be of any electrical, mechanical or other form. You may.

The unit described as a separating member may or may not be physically separated, and the member labeled as a unit may be a physical unit or physically. It does not have to be a physical unit, that is, it may be located in one place, or it may be distributed in a plurality of network units. Some or all of the units can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, individual units may physically exist independently, and two or more units may be one. It may be integrated into a unit.

When the function is realized in the form of a software function unit and sold or used as an independent product, it may be stored in one computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be realized essentially in the form of a software product, or a portion that contributes to the prior art or a portion of the technical solution is in the form of a software product. It may be realized and the computer software product performs all or part of the steps of the methods described in each embodiment of the present invention in one computer device (which may be a personal computer, server, network device, etc.). It is stored in a storage medium that contains several instructions for making it. The storage medium includes various media capable of storing a program code such as a U disk, a mobile hard disk, a read-only memory (ROM: Read-Only Memory), a random access memory (RAM: Random Access Memory), a magnetic disk, or an optical disk.

The above is only a specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto, and all changes or replacements that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention are all. It should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should comply with the claims.

Claims (16)

It is a data transmission method
The terminal so that the first primary network device transmits the first instruction information to the terminal device and the first instruction information transmits the measurement result information of the secondary network device to the first primary network device. To be used to instruct the device and
The first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device, and the measurement result information is combined with the secondary network device. Used to indicate the quality of links between the terminal devices
The first primary network device determines the establishment of a secondary connection between the secondary network device and the terminal device based on the link quality between the secondary network device and the terminal device.
Including that the first primary network apparatus establishes the secondary connection.
Here, the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the primary network device.
The first primary network device comprises receiving the measurement result information transmitted by the terminal device based on the first instruction information.
Data transmission method. It is possible that the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the first primary network device.
The first primary network device is characterized by receiving the measurement result information included in the radio resource control (RRC) connection establishment request message or the RRC connection establishment completion message transmitted from the terminal device. The method according to claim 1. It is possible that the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the primary network device.
The network device has already received the measurement result information included in the handover completion message transmitted from the terminal device by the first primary network device, and the handover completion message further provides a service to the terminal device. The method according to claim 1, wherein the method is used to indicate that a second primary network device has been handed over to the first primary network device. It is possible that the first primary network device receives the measurement result information of the secondary network device transmitted by the terminal device in the process of accessing the primary network device.
The first primary network device receives the measurement result information included in the handover request message transmitted from the second primary network device, and the handover request message is further transmitted from the second primary network device. The method according to claim 1, wherein the method is used to request a network device that provides a service to the terminal device that it needs to be handed over to the first primary network device. When the first primary network device establishes the secondary connection,
After the first primary network device receives the measurement result information included in the handover request message transmitted from the second primary network device, the first primary network device becomes the second primary network device. A confirmation message of the handover request message is transmitted to, the confirmation message of the handover request message includes the arrangement information of the secondary connection, and the second primary network device transfers the arrangement information of the secondary connection to the terminal device. The method according to claim 4, wherein the secondary connection arrangement information is used for establishing the secondary connection between the secondary network device and the terminal device. When the first primary network device establishes the secondary connection,
The first primary network device sends a secondary connection addition request message to the secondary network device, and the secondary connection addition request message requests that the secondary network device be added as a network device for transmitting data. To be used for
The first primary network device receives the confirmation message of the secondary connection addition request message transmitted from the secondary network device, and the confirmation message of the secondary connection addition request message includes the arrangement information of the secondary connection. The arrangement information of the secondary connection is used to establish the secondary connection between the secondary network device and the terminal device, and
When the first primary network device acquires the arrangement information of the secondary connection,
The method according to any one of claims 1-5, wherein the first primary network device includes transmitting the arrangement information of the secondary connection to the terminal device. The first primary network device determines the secondary connection between the secondary network device and the terminal device based on the measurement result information.
A claim comprising the first primary network device establishing a secondary connection between the secondary network device and the terminal device based on the load status of the first primary network device and the measurement result information. Item 8. The method according to any one of Items 1-6. The method further
The first primary network device transmits the arrangement information of the primary connection to the terminal device, and the arrangement information of the primary connection is used by the terminal device to establish a primary connection with the first primary network device. The method according to any one of claims 1-7, wherein the primary connection is used to transmit data. The first primary network apparatus is a network apparatus in a long-term evolution type (LTE) network, and the secondary network apparatus is a network apparatus in a 5G network apparatus, according to any one of claims 1-8. The method described. The method according to any one of claims 1-9, wherein the secondary connection is used to transmit first control plane data and / or user plane data. It is a data transmission method
The terminal device receives the first instruction information transmitted from the first primary network device, and the first instruction information transmits the measurement result information of the secondary network device to the first primary network device. To be used to instruct the terminal device and
The terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, and the first primary network device transmits the measurement result information of the secondary network device. The arrangement information of the secondary connection is acquired based on the above, and the measurement result information is used to indicate the link quality between the secondary network device and the terminal device.
When the terminal device receives the arrangement information of the secondary connection transmitted from the first primary network device,
Including that the terminal device accesses the secondary network device based on the arrangement information of the secondary connection.
Here, the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device.
Data transmission characterized in that the terminal device includes transmitting the measurement result information to the first primary network device in the process of accessing the first primary network device based on the first instruction information. Method. When the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device,
The terminal device includes transmitting the measurement result information to the first primary network device by a radio resource control (RRC) connection establishment request message or an RRC connection establishment completion message, or
A measurement report in which the terminal device transmits measurement result information to the first primary network device via the second primary network device, and the measurement result information is transmitted from the terminal device to the second primary network device. The second primary network device is included in the above, and the handover request message is transmitted to the first primary network device based on the measurement report, and the handover request message includes the measurement result information. It is used to request the network device that provides the service to the terminal device that the handover request message needs to be further handovered from the second primary network device to the first primary network device. Including or
The terminal device transmits the measurement result information to the first primary network device by the handover completion message, and the network device whose handover completion message further provides services to the terminal device is already the second primary network device. The method according to claim 11, wherein the method is used to indicate that the first primary network device has been handed over. Before the terminal device transmits the measurement result information of the secondary network device to the first primary network device in the process of accessing the first primary network device, the method further comprises.
When the channel quality between the terminal device and the secondary network device satisfies the preset condition, the measurement result information is transmitted to the first primary network device by the terminal device in the process of accessing the first primary network device. The method of claim 11 or 12, wherein the method comprises transmitting. The method further
The terminal device receives the arrangement information of the primary connection transmitted from the first primary network device, and the arrangement information of the primary connection establishes the primary connection of the terminal device with the first primary network device. The method according to any one of claims 11-13, wherein the primary connection is used to transmit data. A network device, wherein the network device is the first primary network device.
With the processor
When the instruction is executed by the processor, the processor performs the method according to any one of claims 1-10, including a memory for storing the instruction.
Network device. It ’s a terminal device,
With the processor
When the instruction is executed by the processor, the processor performs the method according to any one of claims 11-14, including a memory for storing the instruction.
Terminal equipment.

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