User Equipment Data Transmission Inactive State Identity Management
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Solution Overview
Problem
Current 5G telecommunication systems face inefficiencies in resource usage during data transmission in inactive state connections, particularly in managing user equipment identities and maintaining context, which affects bandwidth and overhead in small data transmissions.
Innovation Solution
The system configures user equipment with two distinct identities - a first identity for when the serving cell remains the same and a second identity that includes the base station or its element - to optimize data packet transmission in inactive states, reducing the number of identity bits required and minimizing overhead by adapting to cell change frequencies and mobility history.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single identity is used for user equipment in inactive state, then device complexity is reduced, but reliability of context identification deteriorates when user equipment moves to different cells
Solution Approach 1:
The identity is segmented into two distinct identities: a first identity for when the serving cell remains the same, and a second identity that includes the base station or its element identifier. This segmentation allows the system to select the appropriate identity based on whether cell change has occurred, thereby maintaining context identification reliability while managing complexity through conditional selection rather than always using the more complex second identity format.
Solution Approach 2:
The system dynamically selects between the first identity and the second identity based on the condition of cell change. The user equipment determines whether the current cell is the same as the last serving cell and accordingly forms data packets with the appropriate identity. This dynamic adaptation ensures reliable context identification when needed (using second identity with base station information) while reducing overhead when not needed (using first identity).
2Reliability
If a second identity including base station identifier is always used, then reliability of context identification is improved, but bandwidth efficiency deteriorates due to increased overhead
Solution Approach 1:
The solution applies local quality by using different identity formats in different local conditions: the first identity (shorter format) is used when the user equipment remains in the same serving cell, while the second identity (longer format including base station identifier) is used when cell change has occurred. This localized adaptation ensures that the more verbose second identity is only used when necessary for reliable context identification, thereby optimizing bandwidth efficiency overall.
Solution Approach 2:
The system changes the identity parameter dynamically based on the serving cell condition. When the current cell matches the last serving cell, the identity parameter uses the compact first identity format. When cell change is detected, the identity parameter switches to the extended second identity format that includes base station or its element identifier. This parameter change approach ensures reliable context identification only when necessary, improving bandwidth efficiency.
3Productivity
If identity packet size is reduced, then bandwidth efficiency is improved, but measurement precision of user equipment context deteriorates
Solution Approach 1:
The system dynamically adjusts the identity packet size based on the serving cell condition. The user equipment determines whether cell change has occurred and accordingly selects the appropriate identity format: the compact first identity when in the same cell, or the extended second identity with base station identifier when cell change is detected. This dynamic adjustment ensures that measurement precision of user equipment context is maintained only when necessary (in cell change scenarios), thereby optimizing bandwidth efficiency in stable cell conditions.
Solution Approach 2:
The identity parameter is changed based on the serving cell condition to balance packet size and identification precision. When the current cell matches the last serving cell, the system uses the first identity with reduced bits. When cell change is detected, the system switches to the second identity that includes base station or its element identifier, ensuring sufficient precision for context identification. This parameter change strategy resolves the contradiction by adapting precision to actual needs.
Data Source
AI summary
The present subject matter relates to a user equipment for transmission of a data, the user equipment being served by a cell of a base station, the user equipment being in an inactive state, the user equipment comprising means being configured for: in response to determining that a condition is fulfilled, forming a data packet comprising the data and a first identity of the user equipment; otherwise, forming a data packet comprising the data and a second identity of the user equipment; wherein the condition comprises at least that the cell was a last serving cell of the user equipment before the user equipment transitioned to the inactive state; wherein the first identity is different from the second identity; transmitting the data packet to the base station.