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A communication method and device

A communication method and the first technology, applied in the field of communication, can solve the problems that the PDU session cannot be switched to the EPS network, ARP is difficult to guarantee, etc.

Active Publication Date: 2022-07-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the ARP information of the default QoS flow must be set as a non-preemptive type with the highest priority. Otherwise, the entire PDU session may not be switched because the EBI of the default QoS flow cannot be allocated, or the EBI of the default QoS flow is revoked. to the EPS network
However, strict constraints on ARP are difficult to guarantee in real business deployment

Method used

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  • A communication method and device
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Experimental program
Comparison scheme
Effect test

specific Embodiment 1 -5G

[0177] Specific embodiment 1--5GS EBI allocation process

[0178] like Figure 5 As shown, in this specific embodiment 1, the SMF only carries one ARP when applying for EBI for the first time for a QoS flow under a PDU session. In order to identify the default QoS flow, the SMF always carries the ARP corresponding to the default QoS flow in the first EBI allocation request message; accordingly, the AMF identifies the first allocated EBI under each PDU session as the EBI corresponding to the default QoS flow by default. The detailed process is as follows:

[0179] 1) In the PDU session creation process, the SMF sends an EBI allocation request message to the AMF, and the message only carries the ARP corresponding to the default QoS flow.

[0180] 2) The AMF allocates EBI to the ARP and identifies the EBI as the default QoS flow corresponding to the EBI, and then sends an EBI allocation response message to the SMF, and the message carries the allocated EBI. According to the re...

specific Embodiment 2 5G

[0185] Specific embodiment 2-5GS EBI allocation process

[0186] like Image 6 As shown, the difference between this specific embodiment 2 and the specific embodiment 1 is: when SMF applies for EBI allocation for the first time, it carries multiple ARPs in the request message at the same time. In order to identify the default QoS flow, the following processing needs to be performed. Other processing and specific implementation Example 1 remains the same.

[0187] 1) In the first EBI allocation request message, the SMF places the ARP corresponding to the default QoS flow in the first position in all ARPs. For example, an ARP list is carried in the EBI allocation request of the SMF, and the ARP of the default QoS flow is at the top of the ARP list.

[0188] 2) The AMF identifies the EBI corresponding to the first ARP as the EBI corresponding to the default QoS flow.

[0189] 3) In the response message, the AMF places the EBI corresponding to the default QoS flow in the first ...

specific Embodiment 3 5G

[0190] Specific embodiment three-5GS EBI allocation process

[0191] like Figure 8 As shown, the difference between this specific embodiment 2 and the specific embodiment 1 is: when SMF applies for EBI allocation for the first time, it carries multiple ARPs in the request message at the same time. In order to identify the default QoS flow, the following processing needs to be performed. Other processing and specific implementation Example 1 remains the same.

[0192] 1) In the first EBI allocation request message, the SMF carries, in addition to the ARP of each QoS flow to which EBI needs to be allocated, first indication information to indicate which ARP is the ARP corresponding to the default QoS flow. For example, an ARP list is included in the request message, wherein the ARP list includes the ARP of each QoS flow that needs to allocate EBI, and the first indication information is the ARP of the default QoS flow.

[0193] 2), AMF identifies the EBI corresponding to the ...

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Abstract

A communication method and device, the method includes: a mobility management network element of a first network receives a first request message from a session management network element, the first request message includes first ARP information, and the mobility management network element is the first request message. The default QoS flow of the first connection in the network is assigned a first identification, and the first identification is used to identify the bearer corresponding to the default QoS flow in the second connection in the second network, and the mobility management network element reports to the session management network element A first response message is sent, where the first response message includes a first identifier. By indicating the ARP information corresponding to the default QoS flow through the first request message, the mobility management network element can identify the default QoS flow of the first connection of the first network, so as to assign a corresponding identifier to the default QoS flow to ensure service continuity . In addition, this method does not need to restrict the planning of ARP, and has better flexibility and applicability.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to a communication method and device. Background technique [0002] The current 3rd generation partner project (the 3rd generation partner project, 3GPP) protocol supports the interoperability between the evolved packet system (evolved packet system, EPS) network and the 5th generation system (5th generation system, 5GS) network . Since the EPS network performs quality of service (QoS) control through EPS bearers, and the 5GS network performs QoS control through QoS flows, the interoperation between EPS networks and 5GS networks requires mapping between EPS bearers and QoS flows. [0003] However, in general, the number of EPS bearers that an EPS network can create for one user is not equal to the number of QoS flows that a 5GS network can create for one user. When the number of QoS flows created by the 5GS network for a user is greater than the maximum num...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/02H04W24/04H04W36/00
CPCH04W8/02H04W24/04H04W36/0027H04W36/0016H04W36/0033H04W36/00H04W8/08
Inventor 陆长奇宗在峰
Owner HUAWEI TECH CO LTD