Cellular Ranging Signal Resource Allocation for Interference Management
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Solution Overview
Problem
Current wireless communication systems face challenges in performing accurate obstacle detection and tracking using ranging signals, particularly in high-density environments, due to limitations in ranging signal allocation and interference management within cellular networks.
Innovation Solution
Personal electronic devices, such as head-wearable and mobile devices, are equipped with ranging circuitry to transmit and receive signals at high frequencies, using encoded signals and side-link discovery sequences to enable precise obstacle detection and tracking, while the network manages resource allocation to optimize interference management and positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ranging signals are transmitted at high frequencies (above 52.6 GHz) for precise obstacle detection, then measurement precision is improved, but the system becomes more susceptible to interference and requires sophisticated resource allocation management
Solution Approach 1:
The patent segments the frequency spectrum by allocating specific frequency ranges for ranging operations versus cellular communications. The network divides available high-frequency resources into dedicated ranging portions and cellular communication portions, preventing interference between the two functions while enabling precise high-frequency ranging for obstacle detection
Solution Approach 2:
The network acts as an intermediary between ranging devices and the electromagnetic spectrum. It manages and coordinates high-frequency ranging signal transmissions by allocating time and frequency resources, mediating between the need for precise high-frequency ranging and the need to avoid interference with cellular communications
2Object-affected harmful factors
If network manages ranging resource allocation to reduce interference, then harmful factors are reduced, but device complexity increases due to coordinated resource allocation requirements
Solution Approach 1:
The patent implements self-service through network-managed ranging resource allocation where the network automatically assigns time and frequency resources to ranging devices without requiring complex manual coordination. The network autonomously manages interference by allocating dedicated ranging portions in the time domain and frequency domain, simplifying the device complexity while maintaining effective interference management
3Object-affected harmful factors
If dedicated ranging portions are allocated in time and frequency domains, then interference is reduced, but productivity decreases due to limited available resources for ranging operations
Solution Approach 1:
The patent employs periodic action by allocating ranging resources in periodic time slots and frequency portions. The network creates repeating patterns where ranging operations occur during designated periods, allowing multiple ranging devices to share the spectrum efficiently through time-division and frequency-division multiplexing, thereby maintaining productivity while reducing interference
Solution Approach 2:
The patent implements dynamics through flexible network management of ranging resource allocation. The network can dynamically adjust the timing, frequency, and duration of ranging portions based on current network conditions, device requirements, and interference levels, optimizing productivity while maintaining interference reduction through adaptive resource management
Data Source
AI summary
Systems and methods for using ranging signals with cellular devices. The ranging signals may utilize ranging slots and resources at least partially allocated by a cellular network. The resources may include frequencies used for uplink or downlink communications between the cellular network and the cellular devices. Alternatively, the resources may include frequencies outside of a spectrum used for communication between the cellular network and the cellular devices.