WLAN Resource Allocation for Cellular Offloading
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Solution Overview
Problem
In interworking between cellular networks and WLANs, conventional WLAN services and to-be-offloaded cellular network services often contend for channels, leading to channel blocking and poor user experience due to the lack of coordinated resource allocation.
Innovation Solution
A method for determining and allocating separate WLAN resources in an access point for conventional WLAN services and to-be-offloaded cellular network services, with a resource allocation node sending messages to both the access point and the cellular network node to ensure each service uses only its allocated resources, thereby avoiding channel contention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the WLAN does not distinguish between the conventional WLAN service and the to-be-offloaded service, then the channel contention is avoided, but channel blocking occurs and user experience deteriorates
Solution Approach 1:
The patent segments the WLAN resources by introducing a specific resource identifier (RAID) to distinguish between conventional WLAN services and offloaded cellular services. This segmentation allows the AP to allocate specific resource units (RUs) to different service types, preventing channel blocking while maintaining efficient data transmission. The resource allocation is divided into separate pools: one for conventional WLAN traffic and another for offloaded cellular traffic, enabling independent management and avoiding contention.
2Reliability
If separate resource allocation is implemented for conventional WLAN service and offloaded service, then channel blocking is avoided, but system complexity increases
Solution Approach 1:
The patent introduces a resource allocation identifier (RAID) as an intermediary mechanism to manage resource allocation between conventional and offloaded services. The RAID acts as a mediator that the AP uses to identify and allocate specific resource units to different service types without requiring complex negotiation or coordination protocols. This intermediary simplifies the resource management process by providing a straightforward identification and allocation mechanism based on service type.
Data Source
AI summary
The present invention relates to the field of mobile communications technologies, and in particular, to a resource allocation method, a service transmission method, and an apparatus, so as to resolve a technical problem of how to coordinately transmit, in a WLAN, a WLAN service and a to-be-offloaded service of a cellular network node. In embodiments of the present invention, resources separately allocated to an AP and the cellular network node are specified, and the AP and the cellular network node are separately notified of an allocation result. In this way, both the AP and the cellular network node transmit data on only the respective allocated WLAN resources, so as to avoid that the WLAN service and the to-be-offloaded service of the cellular network node contend for a channel.