Radio Resource Sharing via Random Access Preamble Signaling
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Solution Overview
Problem
Facilitating the sharing of radio resources between transmissions outside the control of a radio system and those under its control poses a challenge, as existing methods lack efficient mechanisms for prioritization and management of shared resources.
Innovation Solution
A method and apparatus that enable a mobile device to transmit information about shared radio resource usage to a radio access network, allowing for priority access and communication with an authorized shared access controller, ensuring efficient management and allocation of shared radio resources between controlled and uncontrolled transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio resources are shared between transmissions outside radio system control and transmissions under radio system control, then resource utilization efficiency is improved, but resource management complexity and access conflict increase
Solution Approach 1:
The patent introduces a random access preamble as an intermediary signaling mechanism that enables mobile devices to indicate their identity and shared resource usage information to the radio access network before establishing a connection. This intermediary structure facilitates coordinated resource sharing between controlled and uncontrolled transmissions without requiring complex real-time negotiation protocols.
Solution Approach 2:
The patent implements preliminary action by requiring mobile devices to transmit their identity information through the random access preamble before actual data transmission begins. This advance notification allows the radio access network to pre-allocate resources and establish appropriate access priorities, preventing conflicts before they occur and simplifying ongoing resource management.
2Reliability
If priority access is provided to mobile devices with shared resource information, then quality of service predictability is improved, but access inequality and potential starvation of other devices increases
Solution Approach 1:
The patent applies local quality by providing differentiated treatment based on device characteristics - mobile devices that transmit shared resource information receive priority access in specific scenarios, while other devices follow standard access procedures. This localized quality adjustment ensures QoS predictability for devices with shared resource knowledge without completely starving other access requests.
Solution Approach 2:
The patent implements partial action by granting priority access only to mobile devices that have transmitted shared resource information through the random access preamble, rather than providing universal priority. This selective application of priority ensures that the benefit is applied only where needed for resource coordination, maintaining overall system fairness while achieving QoS predictability for critical devices.
3Loss of information
If random access preamble messages include mobile device identifiers indicating shared resource information, then information exchange efficiency is improved, but message complexity and processing overhead increases
Solution Approach 1:
The patent applies universality by designing the random access preamble to serve multiple functions simultaneously: it provides device identification, indicates shared resource usage status, and initiates connection establishment. By embedding shared resource information within the existing preamble structure rather than creating separate signaling messages, the patent reduces overall message complexity and processing overhead while maintaining efficient information exchange.
Data Source
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AI summary
A technique, comprising: controlling a radio transmitter or radio transceiver of a device of a first radio system to transmit to a second radio system information about use of at least one radio resource for one or more transmissions outside the control of the second radio system, wherein said at least one radio resource is also usable for transmissions controlled by the second radio system.