Method, device and system for data communication

Abstract

The embodiment of the present application discloses a data communication method, device and system, which relate to the field of communication technology, and are used to solve the problem that in the prior art, judging whether to use the Grant Free communication mechanism based only on the size of the data packet to be transmitted cannot satisfy different services. The problem of data transmission on demand. It includes: the user equipment UE receives the data packet filtering information sent by the session management function SMF entity, wherein the data packet filtering information includes: the threshold value of the data packet length and the data packet fragmentation indication. If the UE determines that the length of the data packet to be transmitted is less than or equal to the threshold of the data packet length, and the data packet to be transmitted is not a data packet fragment, the UE determines that the data packet to be transmitted can use an authorization-free communication mechanism. The embodiment of the present application is applied in the transmission process of the data packet.

Description

technical field

[0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a data communication method, device, and system. Background technique

[0002] In the fifth-generation mobile communication technology (5-Generation, 5G), after the user equipment (User Equipment, UE) enters the idle (IDLE) state, if it needs to send data to the data network, it needs to execute the service request (ServiceRequest) process first . However, a complete Service Request process includes random access, radio resource control (Radio Resource Control, RRC) connection, establishment of a default bearer and a dedicated bearer, and involves a large amount of interactive signaling between multiple network elements. If the data sent by the UE is small, such as less than 100K, and the Service Request process is still used, the transmission process is relatively complicated and the signaling efficiency is relatively low. Therefore, i...

Examples

Embodiment Construction

[0055] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application.

[0056] When there is no data transmission between the UE and the core network, the UE enters the IDLE state. At this time, the RAN releases the RRC connection, but the core network still retains the location information of the UE. If at this time, the UE needs to send data to the data network, in order to simplify the transmission process and improve signaling efficiency, the UE may not re-establish the RRC connection and dedicated bearer, but directly establish a default bearer for GrantFree transmission according to the core network instructions, and Uplink data transmission is directly performed through the default bearer, that is, data transmission is performed using the Grant Free communication mechanism.

[0057] It should be noted that the Grant Free communication mechanism has the di...

technical field

[0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a data communication method, device, and system. Background technique

[0002] In the fifth-generation mobile communication technology (5-Generation, 5G), after the user equipment (User Equipment, UE) enters the idle (IDLE) state, if it needs to send data to the data network, it needs to execute the service request (ServiceRequest) process first . However, a complete Service Request process includes random access, radio resource control (Radio Resource Control, RRC) connection, establishment of a default bearer and a dedicated bearer, and involves a large amount of interactive signaling between multiple network elements. If the data sent by the UE is small, such as less than 100K, and the Service Request process is still used, the transmission process is relatively complicated and the signaling efficiency is relatively low. Therefore, i...

Examples

Embodiment Construction

[0055] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application.

[0056] When there is no data transmission between the UE and the core network, the UE enters the IDLE state. At this time, the RAN releases the RRC connection, but the core network still retains the location information of the UE. If at this time, the UE needs to send data to the data network, in order to simplify the transmission process and improve signaling efficiency, the UE may not re-establish the RRC connection and dedicated bearer, but directly establish a default bearer for GrantFree transmission according to the core network instructions, and Uplink data transmission is directly performed through the default bearer, that is, data transmission is performed using the Grant Free communication mechanism.

[0057] It should be noted that the Grant Free communication mechanism has the di...

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