Bearer Type Selection for Default PDU Session Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current communication networks waste resources due to the setup of default Protocol Data Unit (PDU) sessions, as intermediate nodes only forward data packets without processing, limiting the ability of terminal devices to provide data services.
Innovation Solution
A communication method and apparatus that allows terminal devices to determine and set up data bearers of specific types, such as end-to-end or multi-node bearers, which support on-path computation and optimization, by using identifiers and request messages to avoid default PDU session setups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a default PDU session is setup for information exchange between network nodes, then an end-to-end user plane connection is provided, but resources are wasted because intermediate nodes only forward data packets without processing
Solution Approach 1:
The patent introduces dynamic bearer type selection (end-to-end bearer vs. multi-node bearer) based on service requirements. The system dynamically determines the appropriate bearer type during PDU session establishment, allowing intermediate nodes to perform computation when multi-node bearers are used, thereby eliminating resource waste while maintaining connection reliability when needed.
Solution Approach 2:
The patent changes the bearer type parameter (end-to-end or multi-node) based on service requirements. By modifying this parameter, the system enables or disables intermediate node computation capabilities, allowing the network to adapt resource usage to actual service needs and avoid wasting resources on services that don't require intermediate processing.
2Ease of operation
If intermediate nodes only forward data packets without processing, then forwarding simplicity is maintained, but terminal devices cannot provide data services
Solution Approach 1:
The system dynamically adjusts the functionality of intermediate nodes based on the bearer type. When a multi-node bearer is established, intermediate nodes gain computation capabilities to support terminal data services. When an end-to-end bearer is used, intermediate nodes maintain simple forwarding. This dynamic adjustment allows the network to provide data services when needed while preserving forwarding simplicity otherwise.
Solution Approach 2:
The patent uses the bearer type parameter to control intermediate node behavior. By setting the bearer type to multi-node, the system enables intermediate node computation functions, allowing terminals to provide data services. This parameter change transforms intermediate nodes from simple forwarders to active participants in data service provision when required.
3Loss of energy
If the terminal device determines and sets up appropriate data bearers, then resource overheads are reduced, but the bearer setup complexity increases
Solution Approach 1:
The patent introduces network side intermediaries (access network device and core network device) that assist the terminal in bearer setup. The terminal indicates its service requirements to the network, and the network helps determine and establish the appropriate bearer type. This intermediary assistance reduces the terminal's setup complexity while still enabling resource-efficient bearer selection.
Solution Approach 2:
The system uses feedback mechanisms where the terminal indicates service requirements to the network, and the network responds with appropriate bearer configuration. This feedback loop allows the terminal to express its needs without directly managing complex setup procedures, reducing terminal complexity while achieving resource-efficient bearer establishment.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
This application provides a communication method and apparatus. The method includes: receiving a paging message, where the paging message includes a first identifier and a second identifier, the first identifier indicates a target data bearer type in at least two data bearer types, the second identifier indicates a terminal device, the at least two data bearer types include an end-to-end bearer and a multi-node bearer, and each node in the multi-node bearer supports on-path computation on data transmitted on the multi-node bearer; sending a first request message, where the first request message is used to request to perform access, the first request message includes a third identifier, and the third identifier indicates the target bearer type; and setting up, based on the first identifier, a data bearer corresponding to the target data bearer type. According to the foregoing method, a waste of resources caused by setup of a default PDU session is avoided while the terminal device can provide a data service.