Full-Duplex Resource Configuration for Cross-Link Interference Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing resource configurations for full-duplex communication, leading to cross-link interference and sub-optimal utilization of frequency bands.
Innovation Solution
Implementing bit maps and resource configurations that indicate symbol-level or slot-level bandwidth switching and half-duplex/full-duplex assignments to optimize frequency band usage, allowing devices to determine transmission or reception based on predefined rules to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If full-duplex communication is implemented without resource configuration, then communication speed is improved, but cross-link interference increases
Solution Approach 1:
The frequency band is segmented into multiple sub-bands, and time is segmented into symbols and slots. The patent applies segmentation by dividing the communication resources into granular units that can be independently configured. This allows the system to allocate specific sub-bands and time slots for full-duplex operation while avoiding interference in other regions, thus maintaining high communication speed while reducing cross-link interference through structured resource partitioning.
Solution Approach 2:
The patent implements dynamic resource configuration where bandwidth switching can occur at symbol-level or slot-level granularity. The system dynamically adjusts which sub-bands are allocated for full-duplex operation based on real-time conditions. This dynamic adaptation allows the system to maximize communication speed when conditions permit while avoiding interference when necessary, resolving the contradiction between speed and interference through flexible, real-time resource management.
2Productivity
If bandwidth switching is implemented at symbol-level, then frequency band utilization is improved, but device complexity increases
Solution Approach 1:
The patent segments the bandwidth switching configuration into bit maps at symbol-level or slot-level granularity. Instead of managing complex continuous bandwidth adjustments, the system uses discrete bit map structures where each bit represents a specific sub-band or time unit. This segmentation simplifies the control mechanism while enabling fine-grained frequency band utilization optimization, as devices only need to process and interpret these simplified bit map configurations rather than managing complex continuous parameters.
Solution Approach 2:
The patent changes the parameter representation from complex continuous bandwidth values to discrete bit map configurations. By transforming the control parameter into a bit map structure where each bit corresponds to a specific resource unit, the system achieves efficient frequency band utilization through simple binary decisions. This parameter transformation reduces device complexity by replacing complex bandwidth management algorithms with straightforward bit map processing and interpretation mechanisms.
3Adaptability or versatility
If resource allocation is done without predefined rules, then adaptability is improved, but loss of information increases
Solution Approach 1:
The patent implements preliminary action by establishing predefined rules and configurations before actual communication occurs. The system pre-configures resource allocation patterns, bandwidth switching schedules, and interference avoidance protocols. These pre-established rules enable devices to operate adaptively in varying conditions while maintaining clear expectations about resource usage. The preliminary configuration ensures that adaptability does not lead to information loss, as the predefined frameworks provide structured guidance for resource management that prevents ambiguous or conflicting allocations.
Data Source
AI summary
A user equipment (UE) may use a resource configuration to determine whether to transmit or receive on a particular sub-band during a given communication period (e.g., a time slot or a symbol duration). In some examples, a network entity provides a bit map to a UE where the bit map indicates how sub-bands for a given communication period are allocated for full-duplex transmissions. The UE may then determine, based on the bit map, whether to transmit or receive on a particular sub-band. In some examples, a network entity provides a resource configuration to a UE where the resource configuration indicates how half-duplex transmissions and full-duplex transmissions are configured over a period of time. In this case, the UE may be configured by a defined rule to determine, based on the resource configuration, whether to transmit or receive on a particular sub-band.