Radio Resource Configuration for Bandwidth Utilization
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Solution Overview
Problem
Existing wireless communication standards, such as 3GPP LTE, limit radio resources within a predefined system bandwidth, leading to inefficient use of actual available bandwidth, particularly in scenarios like FDM ICIC, non-standard spectra, and varying UE capabilities.
Innovation Solution
A method where a base station determines and configures resource allocation, CSI pilot, and CSI measurement bandwidths independently of the system bandwidth for user equipment (UE), allowing these resources to be tailored to the actual available bandwidth and UE capabilities, enabling effective and full utilization of radio resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the network side limits all working spectrums of the UE within the system bandwidth, then the system bandwidth can be standardized and simplified, but the radio resource cannot be effectively and fully used when actual available bandwidth differs from system bandwidth
Solution Approach 1:
The patent segments the bandwidth configuration into two independent parts: system bandwidth (for standardization) and resource configuration bandwidth (for actual resource allocation). This allows the network to broadcast a standardized system bandwidth while separately configuring UE-specific resource bandwidths that match actual available resources, resolving the contradiction between standardization and resource utilization efficiency.
Solution Approach 2:
The patent introduces independent bandwidth parameters (resource allocation bandwidth, CSI pilot bandwidth, CSI measurement bandwidth) that can be dynamically adjusted to match actual available resources. These parameters are configured separately from the system bandwidth, allowing the system to maintain standardized system bandwidth values while adapting resource configuration parameters to actual resource availability, thereby improving radio resource utilization.
2Device complexity
If the resource configuration is limited to standard bandwidth values, then the system complexity is reduced, but the adaptability to actual available bandwidth and UE capabilities is insufficient
Solution Approach 1:
The patent makes the resource configuration dynamic by allowing the network to independently adjust resource allocation bandwidth, CSI pilot bandwidth, and CSI measurement bandwidth based on actual available resources and UE capabilities. These parameters can be dynamically reconfigured without changing the standardized system bandwidth, enabling the system to adapt to varying resource availability while maintaining manageable complexity through standardized procedures.
3Device complexity
If the CSI measurement and resource allocation are based on system bandwidth, then the measurement process is simplified, but the measurement accuracy and resource allocation precision are reduced when actual available bandwidth differs from system bandwidth
Solution Approach 1:
The patent applies local quality by configuring CSI measurement bandwidth and resource allocation bandwidth independently to match the actual available bandwidth for specific UEs. This allows CSI measurements to be performed precisely within the actual resource boundaries rather than being constrained by standardized system bandwidth values, improving measurement accuracy while maintaining simplified measurement procedures through standardized configuration methods.
Data Source
AI summary
A radio resource configuration method and device are disclosed. The radio resource configuration method includes: after a piece of user equipment UE establishes a connection with a base station according to a system bandwidth in a broadcast message, determining, by the base station for the UE, resource configuration used for communication between the UE and the base station, where the resource configuration includes at least one of a resource allocation bandwidth, a channel state information CSI pilot bandwidth, and a CSI measurement bandwidth, where the resource allocation bandwidth is a bandwidth used to generate resource block allocation information in downlink control information; and sending, by the base station to the UE by using dedicated signaling or a common message, the resource configuration determined for the UE and used for communication between the UE and the base station.