Proxying UPnP service discovery and access to a non-IP Bluetooth network on a mobile phone

The current service-and device discovery protocols are not platform-and network independent. Therefore, proxy servers will be needed to extend the range of IP-based discovery protocols to non-IP domains. We developed an architecture of a proxy that enables Universal Plug and Play (UPnP) devices and services to be discovered and accessed on the Bluetooth network and vice versa. We optimized and implemented the architecture on a mobile computing platform. This proxy implementation is then used for interworking the UPnP Content Directory service with the Bluetooth File Transfer profile. Our performance study showed that our proxy implementation reduces invocation time and data throughput to about 50% of the bare Bluetooth and UPnP performance, but it is still acceptable for an end user.