Sidelink Bandwidth Part Configuration for Flexible UE Link Operation
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Solution Overview
Problem
Existing bandwidth part (BWP) configurations for sidelink communication in wireless networks are not optimized for sidelink operations, leading to inefficient sidelink operations and reduced flexibility in UE configurations.
Innovation Solution
A method and apparatus for configuring UEs with separate BWP-specific parameters for access link and sidelink operations, allowing optimization of parameters based on the specific capabilities and operational scenarios of the UE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single BWP configuration is used for both access link and sidelink operations, then device complexity is reduced, but sidelink operation efficiency deteriorates due to non-optimized parameters
Solution Approach 1:
The patent divides the unified BWP configuration into separate access link BWP parameters and sidelink BWP parameters. The base station configures different parameter sets for each link type, allowing independent optimization of access link connectivity and sidelink communication performance without increasing overall system complexity.
Solution Approach 2:
The patent applies local quality by configuring BWP parameters specifically tailored to each link's requirements. Access link parameters are optimized for UE-to-base station communication while sidelink parameters are optimized for UE-to-UE communication, ensuring each link operates with locally optimal parameters for its specific function.
2Reliability
If BWP parameters are optimized for access link communication, then access link performance is improved, but sidelink operation flexibility deteriorates due to non-optimized parameters
Solution Approach 1:
The patent segments the BWP configuration into distinct parameter sets for access link and sidelink operations. This allows the access link to be optimized for reliable connectivity to the base station while the sidelink parameters can be independently optimized for various sidelink scenarios including vehicle-to-vehicle communication, sensor networks, and other UE-to-UE applications.
Solution Approach 2:
The patent enables dynamic selection and switching between different BWP configurations based on operational requirements. The UE can switch between access link-optimized configurations and sidelink-optimized configurations depending on whether the current operation requires base station communication or direct UE-to-UE communication, providing operational flexibility.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of one or more bandwidth part (BWP)-specific access link parameters and one or more BWP-specific sidelink parameters. The UE may perform at least one of access link communication with a base station based at least in part on the one or more BWP-specific access link parameters, or sidelink communication with another UE based at least in part on the one or more BWP-specific sidelink parameters. Numerous other aspects are provided.