Koninklijke Philips Corporation N.v.

St-ericsson Sa

Xiaolu Sun

Lei Feng

Bo Tong Liu

Yonggang Du

Xiaoling Shao

Xiaohui Jin

Karin Klabunde

Jiawen Tu

Heriburt Baldus

Jianbo Tian

A medical communication system () comprises peer devices () which provide medical services which are used for patient monitoring, patient management or other medical procedures involving patients and/or clinicians. A mobile device () includes a short-range interface device () for discovering peer devices () and associated peer devices services (). A positioning component () determines a location of the mobile device (). An identification component () reads a patient identification device () and a clinician identification device () and identifies a patient () and a clinician () at the location of the mobile device (). A visibility manager () limits information and services available to the mobile device () to current context relevant information and services which are based at least on one of the identity of the patient (), the identity of the clinician (), and the identified mobile device location.

System and method for context dependent service discovery for mobile medical devices

The present invention takes the advantage of the WLAN resources in hotspots for voice and data connections and enables seamless handover between WWAN and WLAN and vice versa. This allows two users in the hotspots to communicate with each other by making a voice over IP (VoIP) or video call, thus achieving cost savings for the end users and WWAN resources savings for the wireless operators. According to one embodiment of the invention, a mobile terminal has wireless wide area network (WWAN) and wireless local area network (WLAN) interfaces. The mobile terminal via a WWAN. If a WLAN is present, the mobile terminal sends a handover request together with its network address to the called mobile terminal, using a short message service (SMS) technique or a watermarking technique, for initiating a WLAN call with the called mobile terminal via a WLAN. After the WLAN call is established with the called mobile terminal, the mobile terminal releases the WWAN call.

Systems and methods for seamlessly roaming between a wireless wide area network and a wireless local area network

A method to be performed by a user terminal with WWAN and WLAN interfaces, comprising steps of: communicating via the WWAN interface; inspecting whether its WLAN interface is available; entering into a WWAN-to WLAN state from a WWAN active state if its WLAN interface is available; said user terminal provides a public server with known network address with its presence information said WWAN-to-WLAN state; and acquiring the network address of another user terminal communicating with said user terminal from said server, sending a WLAN call request to said another user terminal by using said address; entering into WLAN active state after receiving the message for accepting the WLAN call request from said another user terminal.

Method and system for handover between wireless local area network and wireless wide area network

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Shanghai, China

Xiaolu Sun