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Processing method and device for PDU session

A processing method and technology for accessing equipment, applied in the communication field, can solve the problems of low flexibility, complex signaling interaction, complex signaling interaction process, etc.

Active Publication Date: 2018-02-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] see figure 1 , the figure shows the bearer model in the existing LTE (Long Term Evolution, long-term evolution) system, the bearer in the existing LTE involves multi-layer mapping, from the EPS Bearer (EPS Bearer) and the access network ERAB (Evolved Radio Access One-to-one mapping between Bearer (evolved radio access bearer), and one-to-one mapping between access network ERAB and air interface RadioBearer (radio bearer), however, the mapping mechanism between multi-layer bearers brings The complex signaling interaction process
[0003] In order to avoid the low flexibility of the QoS (Quality of Service) architecture in the LTE network and the complexity of related signaling interactions

Method used

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  • Processing method and device for PDU session
  • Processing method and device for PDU session
  • Processing method and device for PDU session

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] see Figure 7 , a processing method of a PDU session is shown in the figure, and the specific steps are as follows:

[0109] Step 701, the access device receives the PDU session establishment request message sent by the core network control plane functional entity, the PDU session establishment request message carries at least one default PDU flow (default PDU flow) configuration information, the default PDU flow is used to transmit data packets that cannot be matched to any dedicated PDU flow (dedicate PUD flow);

[0110] For the functional entities of the above-mentioned core network control plane, please refer to Figure 2 to Figure 5 CN-C in.

[0111] Optionally, the establishment request message of the PDU session may also include: the configuration information of the dedicated PDU flow, the configuration information of the dedicated PDU flow includes but is not limited to: the QoS information of the dedicated PDU flow (the QoS information may include GBR or Non-...

Embodiment 2

[0146] see Figure 8 , a processing method of a PDU session is shown in the figure, and the specific steps are as follows:

[0147] Step 801, the core network control plane functional entity sends a PDU session establishment request message to the access device, the PDU session establishment request message carries at least one configuration information of a default PDU flow, and the default PDU flow is used to resolve Packets matched to any dedicated PDU flow (dedicate PDU flow) are transmitted.

[0148] Optionally, the establishment request message of the PDU session may also include: the configuration information of the dedicated PDU flow, the configuration information of the dedicated PDU flow includes but is not limited to: the QoS information of the dedicated PDU flow (the QoS information may include GBR or Non-GBR indication, and the preemption priority information of the PDU flow), and the flow filter template (flow filter template) or PDU flow ID of the dedicated PDU...

Embodiment 3

[0165] In this embodiment, the process of establishing a PDU session triggered by the core network CN-C to the access network is introduced.

[0166] In order to establish a user plane data transmission channel with a specific data network, the core network CN-C will trigger the PDU session (PDU session) establishment process, wherein the PDU session will contain at least one default PDU flow (default PDU flow) configuration, and at the same time It can also include the configuration of dedicated PDU flow (dedicated PDU flow). Among them, the default PDUflow is used to transmit data packets that cannot be matched to any dedicated PDU flow. It is assumed here that CN-C can trigger the establishment of multiple PDN sessions in parallel, see Figure 9 ,Specific steps are as follows:

[0167] Step 901, the core network CN-C sends a PDU session establishment request message to the access network NG-NB;

[0168] CN-C allocates a PDU session ID (PDU session ID) for each PDU sessio...

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Abstract

The embodiment of the invention provides a processing method and device for a PDU session. The processing method comprises the steps that an access device receives a PDU session establishing request message sent by a core network control surface function entity, wherein the PDU session establishing request message at least carries configuration information of a default PDU flow, and the default PDU flow is used for transmitting data packets which cannot be matched to any dedicated PDU flow; and the access device conducts corresponding processing according to the PDU session establishing request message. By carrying the configuration information of the default PDU flows in the PDU session establishing request message, the process that the access network establishes context of the session and the PDU flows on the basis of the PDU session can be effectively solved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for processing a PDU (Protocol Data Unit) session. Background technique [0002] see figure 1 , the figure shows the bearer model in the existing LTE (Long Term Evolution, Long Term Evolution) system, the bearer in the existing LTE involves multi-layer mapping, from the EPS Bearer (EPS bearer) and the access network ERAB (Evolved Radio Access One-to-one mapping between Bearer (evolved radio access bearer), and one-to-one mapping between the access network ERAB and the air interface RadioBearer (radio bearer), however, this mapping mechanism between multi-layer bearers brings complex signaling interaction process. [0003] In order to avoid the problems of low flexibility of QoS (Quality of Service, quality of service) architecture and complex signaling interaction in the LTE network. In the future 5G communication system, a new and more flexible QoS ...

Claims

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Application Information

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IPC IPC(8): H04W28/06
Inventor 焦斌
Owner DATANG MOBILE COMM EQUIP CO LTD
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