Telecommunications Research Laboratories

Dusit Niyato

Abu Zafar Ekram Hossain

Sergio Guido Camorlinga

Rajagopalan Krishnamoorthy

Bharat Shrestha

A system and method for remote and mobile patient monitoring service is provided using heterogeneous wireless access in which each patient is equipped with a remote monitoring device with a heterogeneous wireless transceiver. This can be a value-added service provided by a Healthcare service provider (i.e., a hospital or healthcare center) for which the Healthcare service provider can pay to the wireless network service provider (i.e., a network operator). With heterogeneous wireless access, a remote/mobile patient can use different types of wireless technologies (e.g., WiMAX-based WMAN and WiFi-based WLAN technologies) to transfer monitored bio-signal data to the healthcare center. The monitoring device can buffer and then transmit the bio-signal data to the healthcare center through the heterogeneous radio access network. In this device, there can be two buffers used to store bio-signal data, each with different priority. The scheduler in this device can make an optimal decision on data transmission. Also, a method is provided to minimize the cost of network connections for remote/mobile patient monitoring.

System and method for remote and mobile patient monitoring service using heterogeneous wireless access networks

A guaranteed time slot allocation scheme is provided for the IEEE 802.15.4 standard for use in wireless personal area networks having sensor devices to overcome bandwidth under-utilization for time-critical or delay-sensitive data transmissions. A fractional knapsack problem is formulated to obtain optimal guaranteed time slot allocation with which a minimum bandwidth requirement is guaranteed for the sensor devices.

Method and system for allocation guaranteed time slots for efficient transmission of time-critical data in IEEE 802.15.4 wireless personal area networks

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Dusit Niyato