Extended RNTI Lengths for High-Density UE Identification
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Solution Overview
Problem
Existing radio network temporary identifiers (RNTIs) are insufficient to identify all user equipment (UEs) within a cell, particularly in scenarios with increased user density such as vehicular and IoT connectivity, necessitating the use of extended identifiers for effective wireless communication.
Innovation Solution
The implementation of extended radio network temporary identifiers (RNTIs) with longer lengths, such as 24-bit, 32-bit, or 64-bit values, and methods to indicate their usage in wireless communication systems, including modifications to computing formulas and configuration information transmission, to support increased user scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If existing radio network temporary identifiers (RNTIs) are used, then device complexity is kept low, but the quantity of identifiable users is insufficient
Solution Approach 1:
The patent applies parameter changes by extending the identifier length from traditional short RNTIs to long RNTIs with 24, 32, or 64 bits. This parameter change enables the system to identify a significantly larger number of users within a cell, directly resolving the contradiction between the quantity of identifiable users and the complexity of the identifier structure.
2Adaptability or versatility
If extended RNTIs are implemented, then the number of supported users increases, but configuration information transmission becomes more complex
Solution Approach 1:
The patent applies preliminary action by configuring the UE with indication information about long RNTI usage in advance, before the actual communication occurs. The network device transmits this configuration information to the UE beforehand, allowing the UE to be prepared for using extended identifiers without increasing operational complexity during active communication.
Solution Approach 2:
The patent uses parameter changes by introducing indication information that specifies whether long RNTIs should be used. This allows the system to adapt to different user scenarios by changing the identifier parameter based on configuration, thereby supporting enhanced adaptability while managing configuration complexity through structured indication mechanisms.
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AI summary
Methods, systems, and devices for wireless communications with extended identifiers are described. A wireless communication method is provided to comprise transmitting, by a network device, to a user device, a configuration information including an indication on a long identifier having a length greater than that of a short identifier.