LTE Sidelink Radio Bearer Setup Using Preallocated Resources
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Solution Overview
Problem
In LTE systems, establishing a Sidelink Radio Bearer (SLRB) involves a lengthy process that delays service transmission due to the need for separate resource request signaling to the network after configuration, which increases service transmission delay.
Innovation Solution
The network device proactively sends a first message containing resource allocation information to configure the SLRB, reducing the need for additional messages and thereby minimizing service transmission delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal establishes and configures the SLRB by itself in LTE, then the terminal has autonomy in bearer configuration, but the service transmission delay increases due to separate resource request signaling
Solution Approach 1:
The patent combines the SLRB configuration process with the resource allocation process into a single integrated message exchange. The network device sends both SLRB configuration parameters and resource allocation information together in one RRC message, eliminating the need for separate resource request signaling and reducing the number of round-trip communications required.
Solution Approach 2:
The network device performs preliminary resource allocation before sending the SLRB configuration message. By pre-allocating resources and including the resource allocation information in the same message that configures the SLRB, the network eliminates the need for the terminal to perform separate resource requests, thereby reducing delay.
2Adaptability or versatility
If separate resource request signaling is used after SLRB configuration, then resource allocation can be dynamically requested, but the overall process time from bearer establishment to resource acquisition increases
Solution Approach 1:
The patent merges the SLRB configuration message with the resource allocation message into a single RRC signaling exchange. This integration allows dynamic resource allocation to be achieved without requiring separate request and grant messages, thereby reducing the overall process time while maintaining adaptability.
Solution Approach 2:
The network device performs resource allocation in advance and includes the allocated resource information directly in the SLRB configuration message sent to the terminal. This preliminary action eliminates the need for subsequent resource request signaling, reducing the duration from bearer establishment to resource acquisition.
3Ease of manufacture
If multiple separate messages are used for SLRB configuration and resource allocation, then each message can be optimized independently, but the total number of signaling exchanges increases
Solution Approach 1:
The patent combines multiple separate signaling messages (SLRB configuration message and resource allocation message) into a single integrated RRC message. This reduces the total number of signaling exchanges between the network and terminal, simplifying the overall communication process while maintaining the ability to convey all necessary configuration and resource information.
Data Source
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AI summary
The present disclosure provides in some embodiments a method and a device for configuring an RB, an apparatus, and a computer-readable storage medium. The method includes receiving a first message transmitted by a network device. The first message at least includes resource allocation information, and the first message is used to configure an SLRB.