SDAP layer function implementation method of 5G system

An implementation method and 5G technology, applied in the field of communication, can solve problems such as complex mapping relationships, achieve clear structure, and facilitate code maintenance and upgrades

Active Publication Date: 2018-07-06
CHONGQING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
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Problems solved by technology

Compared with the RABM module in the LTE era,

Method used

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  • SDAP layer function implementation method of 5G system
  • SDAP layer function implementation method of 5G system
  • SDAP layer function implementation method of 5G system

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Embodiment Construction

[0053] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0054] The implementation method of SDAP function is described below from several aspects, namely SDAP instance creation process; SDAP instance deletion process; SDAP instance parameter modification process; business data receiving and sending process.

[0055] 1. SDAP instance creation process: The creation of the SDAP instance of the SDAP module is controlled by the 5GSM module. The specific operation process is as Figure 6 shown. Specific steps are as follows:

[0056] Step 1: The establishment of a PDU session is always initiated by the terminal. If the network needs to establish a PDU session, the network first sends a short message to request the terminal to initiate the PDU session establishment process. Such as Figure 6 Step 1.1 in.

[0057] Step 2: The application layer determines to initiate the PDU session process, then th...

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Abstract

The invention relates to an SDAP layer function implementation method of a 5G system, and belongs to the technical field of communication. According to the method, in an SDAP layer, a multi-case modeis used for designing, a PDU session identifier is used for identifying an SDAP case number; each SDAP entity completes management on mapping between DRB corresponding to the independent PDU session identifiers and QoS stream identifiers; and a 5GSM module manages building and deleting work of the SDAP cases. According to the SDAP module designed by the method, the non-access layer of the 5G terminal has clearer structure, and the code maintenance and upgrade of the SDAP layer in the 5G are facilitated.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a method for realizing the function of a service data adaptation protocol module in a fifth-generation mobile communication system. Background technique [0002] In the process of mobile communication development, from the second generation Global System for Mobile Communication (GSM) to the long-term evolution system (Long Term Evolution, LTE) that is currently widely used, it has greatly promoted the development of mobile communication. It also supports higher and higher data transfer rates. In order to support business flexibility and high-speed data transmission, layer 2 has been modified in the fifth generation mobile communication system (5G), and the SDAP module has been added. According to the description of the next generation radio access network (Next Generation Radio Access Network, NG-RAN) general specification (TS38.300) provided by the 3rd Generation Partnersh...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W28/24H04W76/12
CPCH04W28/0268H04W28/24
Inventor 段红光郑建宏王哲
Owner CHONGQING UNIV OF POSTS & TELECOMM
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