Core Network Data Channel Setup for Multiple UE Sessions
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Solution Overview
Problem
Existing technologies are limited in establishing multiple data channels for a single user equipment (UE), failing to support dynamic downloading of different data channel applications (DC applications) during a call without pre-installation.
Innovation Solution
A method and apparatus for establishing data channels involving multiple core network devices that create and manage uniform resource locators (URLs) for identifying and indicating application content sources, enabling the dynamic establishment of data channels for terminals through coordinated communication between core network devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single UE establishes only one DC according to existing technologies, then the system complexity is low and the establishment process is simple, but the system cannot support multiple data channels for a single UE which limits service diversity and user experience
Solution Approach 1:
The patent segments the DC establishment process by introducing distinct message types (first message for initial establishment, second message for URL assignment, third message for application layer setup) that can be independently processed. This allows multiple DCs to be established through repeated application of the segmented steps, with each DC receiving its own identification information and URL, thereby supporting multiple concurrent data channels while maintaining manageable complexity through structured message handling.
Solution Approach 2:
The patent adds a new dimension to the DC establishment process by introducing multiple message exchange stages (initial establishment message, URL assignment message, application layer message) rather than a single flat establishment step. This multi-dimensional approach allows the system to track and manage multiple DCs for a single UE by associating each DC with specific message sequences and identification information, enabling versatile DC support without overwhelming system complexity.
2Adaptability or versatility
If multiple DCs are established for a single UE, then service diversity (screen sharing, location sharing, file transmission) is enhanced, but the difficulty of managing and identifying different DCs increases
Solution Approach 1:
The patent implements feedback mechanisms where the network device sends identification information and URLs back to the UE in structured responses. The UE uses this feedback to correctly associate received data with specific DCs. The multi-stage message exchange ensures that identification information is propagated consistently across all relevant nodes, making it easier to track and manage multiple DCs despite the increased complexity of having multiple concurrent channels.
Solution Approach 2:
The patent introduces structured messages as intermediaries that carry identification information between the UE and network device. These messages act as mediators that systematically convey DC-specific parameters, ensuring that each DC is properly identified and managed. The message structure serves as an intermediary layer that simplifies the complexity of managing multiple DCs by providing a standardized interface for DC identification and control.
3Ease of operation
If DC applications are dynamically downloaded during call without pre-installation, then user convenience is improved, but the requirement for accurate URL assignment and information delivery becomes more critical
Solution Approach 1:
The patent applies preliminary action by assigning URLs and identification information during the DC establishment phase, before the actual data transmission begins. This pre-assignment ensures that when applications are dynamically downloaded during the call, the correct URL is already in place, eliminating the need for complex runtime URL resolution. The preliminary assignment of identification information and URLs in the initial messages lays the groundwork for seamless dynamic application downloads, maintaining both user convenience and assignment precision.
4Adaptability or versatility
If information such as GUI or APP list is sent to UE through DC, then functional capabilities are enhanced, but the risk of information loss or misdelivery increases with multiple DCs
Solution Approach 1:
The patent uses feedback mechanisms in the message exchange process to ensure reliable information delivery. The network device sends information (GUI, APP list) through structured messages that include confirmation and acknowledgment elements. This feedback loop allows the system to verify that information was successfully delivered to the correct DC, reducing the risk of information loss or misdelivery even when multiple DCs are concurrently active. The feedback ensures that functional capabilities are reliably transmitted across multiple channels.
Data Source
AI summary
This application discloses a method and apparatus for establishing a data channel, a core network device, and a storage medium. The method for establishing a data channel includes: receiving, by a first core network device, a first message sent by a second core network device, where the first message is used for establishing a data channel for a terminal, and the first message includes first information; creating, by the first core network device based on the first information, a uniform resource locator URL corresponding to the data channel; and sending, by the first core network device, a second message to the second core network device, where the second message includes the URL; where the first information includes at least one of the following: information used for identifying the data channel; and information used for indicating an application content source corresponding to the data channel.