Mobility Connection Setup Using Segmented Network Device Identifiers
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Solution Overview
Problem
Existing technologies face difficulties in identifying a unique network device within a network-wide range using an identifier sent by a network device during mobility management in NR technology.
Innovation Solution
The proposed solution involves the terminal device receiving a connection release message with first information to identify the network device within a first range, and sending connection setup requests with additional information to accurately identify the network device within a larger second range, utilizing enhanced identifiers like eI-RNTI or I-RNTI to facilitate network-wide identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an identifier (I-RNTI) is sent by a network device to a terminal device during mobility management, then the terminal device can be identified within a local range, but it is difficult to identify a unique network device within a network-wide range
Solution Approach 1:
The patent segments the network device identifier into two parts: a first part that identifies the network device within a local range (second range), and a second part that identifies the network device within a network-wide range (first range). This segmentation allows the terminal device to send different parts of the identifier at different stages of the connection setup process, enabling both local and network-wide identification capabilities.
2Ease of operation
If only local identification information is used in connection setup requests, then the connection setup process is simple, but the network device cannot be uniquely identified across the entire network
Solution Approach 1:
The patent applies preliminary action by having the terminal device first send the first part of the network device identifier (local identification) in the initial connection setup request. The network device uses this to quickly determine whether it is the target network device. If not, it forwards the request to the appropriate network device using the second part of the identifier (network-wide identification). This two-stage approach maintains simplicity while ensuring reliable network-wide identification.
3Adaptability or versatility
If enhanced identifiers (eI-RNTI, I-RNTI with network device identifier) are used to achieve network-wide identification, then unique network device identification is enabled, but the identifier complexity increases
Solution Approach 1:
The patent applies local quality by making different parts of the identifier serve different functions at different levels of the network hierarchy. The first part of the network device identifier is used for local identification within a smaller range (second range), while the second part is used for network-wide identification (first range). This allows the system to maintain simple local operations while enabling complex network-wide identification when needed.
Data Source
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AI summary
This application provides a data transmission method, apparatus, and system, and is applied to the field of communication technologies. The data transmission method provided in this application includes: A terminal device receives a connection release message sent by a first network device, where the connection release message includes first information, the first information indicates the terminal device, and the first information is used to identify the first network device within a first range; and the terminal device sends a connection setup request message to a second network device, where the connection setup request message includes second information, the second information is used to identify the first network device within a second range, and the second range is less than the first range.