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Method for processing TSN time synchronization service and equipment
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A time synchronization and processing time technology, applied in the field of communication, can solve the problem of inability to dynamically configure the time synchronization activation status of PDU sessions, and achieve the effect of ensuring time deterministic communication, flexible time configuration and management
Active Publication Date: 2021-11-26
DATANG MOBILE COMM EQUIP CO LTD
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[0004] An object of the embodiment of the present invention is to provide a method and device for processing TSN time synchronization service, so as to solve the problem that existing technology cannot dynamically configure time synchronization for existing PDU sessions activation status issue
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Embodiment 1
[0221] Embodiment 1: By adding subscription information in UDM, AF dynamically configures and activates TSN time synchronization information.
[0222] see Figure 9 , including: Step 0 to Step 13.
[0224] Step 1: The UE establishes a PDU session to the TSN network.
[0225] Step 2: The SMF invokes the Nudm_SDM_Subscribe request to subscribe to the UDM for subscription information updates of one or a group of UEs or a specific TSN domain (domain).
[0226] Signing information can contain one or more combinations of the following:
[0227] (1) DNN;
[0228] (2) Single Network Slice Selection Assistance Information (S-NSSAI);
[0229] (3) One or a group of UE identities (such as: Generic Public Subscription Identifier (GPSI));
[0264] Embodiment 2: Request activation of TSN time synchronization through AF affecting routing, and dynamically configure time synchronization information.
[0265] see Figure 10 , including: Step 0 to Step 14.
[0267] Step 1: AF calls the Nnef_TrafficInfluence_Create service operation to create an AF request.
[0268] Optionally, the request information includes one or more combinations of the following: (1) one or a group of UE identifiers (such as: GPSI); (2) PDU session type (such as: IP, Ethernet); (3) TSN time Synchronization activation indication; (4) TSN domain number / 5GS; (5) clock accuracy; (6) synchronization information (PTP or (g)PTP, this parameter is only for the time source is 5GS GM clock) and other information.
[0269] Step 2: The AF sends the request information to the NEF, the NEF stores th...
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Abstract
The embodiment of the invention provides a method for processing a TSN time synchronization service, and equipment. The method comprises: before or after a PDU session is established, obtaining a first message sent by an AF, the first message making a request to create, update or delete TSN time synchronization information; obtaining a PCC rule according to the first message; and sending the PCC rule to an SMF, so that the SMF instructs a UPF or a terminal UE to activate or deactivate TSN time synchronization, and / or sending a UE policy to the UE according to the PCC rule. In the embodiment of the invention, the TSN time synchronization service of one or one group of UE can be requested to be activated (created or updated) / deactivated (deleted) based on the AF, flexible time configuration and management of one or one group of UE are realized, and time deterministic communication is guaranteed.
Description
technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular to a method and device for processing time synchronization services of a time-sensitive network (TimeSensitive Network, TSN). Background technique [0002] The 5th generation mobile communication technology (5th generation, 5G) system can open the time synchronization capability to the application function (Application Function, AF), and activate or deactivate the TSN time synchronization service based on the AF request. The main method is to create configuration activation information before establishing a protocol data unit (Protocol Data Unit, PDU) session, and initiate a time synchronization process through a user plane function (User Plan Function, UPF) after the PDU session is established. The way of deactivation is that the AF requests to delete the unified data management (Unified Data Management, UDM) configuration information and release ...
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