Inducing broadcast channel in resonance magnetic coupled communication systems

A method performed by a wireless transmit/receive unit (WTRU) for configuring a broadcast channel in a resonance magnetic coupled communication system, the method comprising:

• receiving, from each of a plurality of devices, a message including a request to receive transmissions over a broadcast channel;
• transmitting a reference signal to the plurality of devices;
• transmitting, to the plurality of devices, a message requesting signal measurements of the transmitted reference signal;
• receiving, from each of the plurality of devices, signal measurement reports including the requested signal measurements of the transmitted reference signal, wherein the requested signal measurements are associated with corresponding device-specific frequency ranges;
• transmitting, to each of at least a subset of the plurality of devices, a message requesting adjustment, by each of the at least the subset of the plurality of devices, of a parameter to improve a signal quality indicated by a signal measurement received from each of the at least the subset of the plurality of devices;
• receiving, from each of the at least the subset of the plurality of devices, signal measurement reports including new signal measurements associated with corresponding device-specific frequency ranges;
• transmitting a configuration message to the plurality of devices, the configuration message indicating a broadcast channel frequency and bandwidth, wherein the broadcast channel frequency and bandwidth are at least in part based on the new signal measurements and the corresponding device-specific frequency ranges of the at least the subset of the plurality of devices;
• and
• sending a transmission using the indicated broadcast channel frequency and bandwidth.

A wireless transmit/receive unit (WTRU) configured to communicate via a resonance magnetic communication link, the WTRU comprising:

• an antenna having a loop coupled to a multi-turn spiral coil;
• and
• a processor and a transceiver communicatively coupled to the antenna and configured to:
• receive, from each of a plurality of devices, a message including a request to receive transmissions over a broadcast channel;
• transmit a reference signal to the plurality of devices;
• transmit, to the plurality of devices, a message requesting signal measurements of the transmitted reference signal;
• receive, from each of the plurality of devices, signal measurement reports including the requested signal measurements of the transmitted reference signal, wherein the requested signal measurements are associated with corresponding device-specific frequency ranges;
• transmit, to each of at least a subset of the plurality of devices, a message requesting adjustment, by each of the at least the subset of the plurality of devices, of a parameter to improve a signal quality indicated by a signal measurement received from each of the at least the subset of the plurality of devices;
• receive, from each of the at least the subset of the plurality of devices, signal measurement reports including new signal measurements associated with corresponding device-specific frequency ranges;
• transmit a configuration message to the plurality of devices, the configuration message indicating a broadcast channel frequency and bandwidth, wherein the broadcast channel frequency and bandwidth are at least in part based on the new signal measurements and the corresponding device-specific frequency ranges of the at least the subset of the plurality of devices;
• and
• send a transmission using the indicated broadcast channel frequency and bandwidth.

A wireless transmit/receive unit (WTRU) configured to communicate via a resonance magnetic communication link, the WTRU comprising:

• an antenna having a loop coupled to a multi-turn spiral coil;
• and
• a processor and a transceiver communicatively coupled to the antenna and configured to:
• transmit, to another WTRU, a message including a request to send transmissions over a broadcast channel;
• receive a reference signal from the another WTRU;
• receive, from the another WTRU, a message requesting signal measurements of the received reference signal;
• transmit, to the another WTRU, a signal measurement report including the requested signal measurement of the received reference signal, wherein the requested signal measurement is associated with a device-specific frequency range;
• receive, from the another WTRU, a message requesting adjustment of a parameter to improve a signal quality indicated by the signal measurement;
• transmit, to the another WTRU, a signal measurement report including a new signal measurement associated with the device-specific frequency range;
• receive a configuration message from the another WTRU, the configuration message indicating a broadcast channel frequency and bandwidth, wherein the broadcast channel frequency and bandwidth are at least in part based on the new signal measurement and the device-specific frequency range;
• and
• receive a transmission using the indicated broadcast channel frequency and bandwidth.