Radio communication system
First Claim
1. A system comprising:
- one or more mobile wireless communication units, each configured to transmit multicast radio messages, using a first radio protocol, and further configured to receive and decode data, using a second radio protocol, different from the first radio protocol, wherein the second radio protocol conforms to, or is compatible with, a physical layer defined in an IEEE 802.15.4 standard;
a network comprising a plurality of access points, each access point being configured to receive multicast radio messages, using the first radio protocol, from a mobile wireless communication unit of the one or more mobile wireless communication units that is not associated with the respective access point, and to forward the multicast radio messages on to the network; and
a networked radio transmitter connected to said network and configured to send a control message, addressed to one or more of the mobile wireless communication units, using the second radio protocol, different from the first radio protocol.
1 Assignment
0 Petitions
Accused Products
Abstract
A network has wireless access points, each configured for bi-directional communication, using a first radio protocol, with a communication device that has been associated with the access point by an association data exchange. Each access point is also configured to receive, at a first data rate using the first radio protocol, a multicast radio message and to forward the multicast message onto the network. A radio transmitter is configured to send data at a second data rate, using a second radio protocol different from the first radio protocol. A wireless communication unit transmits a multicast radio message at the first data rate using the first radio protocol. It also receives data from the radio transmitter at the second data rate using the second radio protocol and decodes the data.
20 Citations
20 Claims
-
1. A system comprising:
-
one or more mobile wireless communication units, each configured to transmit multicast radio messages, using a first radio protocol, and further configured to receive and decode data, using a second radio protocol, different from the first radio protocol, wherein the second radio protocol conforms to, or is compatible with, a physical layer defined in an IEEE 802.15.4 standard; a network comprising a plurality of access points, each access point being configured to receive multicast radio messages, using the first radio protocol, from a mobile wireless communication unit of the one or more mobile wireless communication units that is not associated with the respective access point, and to forward the multicast radio messages on to the network; and a networked radio transmitter connected to said network and configured to send a control message, addressed to one or more of the mobile wireless communication units, using the second radio protocol, different from the first radio protocol. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method comprising:
-
a mobile wireless communication unit transmitting a multicast radio message, using a first radio protocol; an access point, with which the mobile wireless communication unit is not associated, receiving the multicast radio message; the access point forwarding the radio message on to a network that comprises the access point; and a networked radio transmitter, connected to said network, receiving a control message from the network and sending the control message, addressed to the mobile wireless communication unit, to the mobile wireless communication unit using a second radio protocol, different from the first radio protocol, wherein the second radio protocol conforms to, or is compatible with, a physical layer defined in an IEEE 802.15.4 standard. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. A method comprising:
-
a mobile wireless communication unit transmitting a multicast radio message, using a first radio protocol, wherein the first radio protocol conforms to, or is compatible with, one of the IEEE 802.11 standards; an access point, with which the mobile wireless communication unit is not associated, receiving the multicast radio message; the access point forwarding the radio message on to a network that comprises the access point; and a networked radio transmitter, connected to said network, receiving a control message from the network and sending the control message, addressed to the mobile wireless communication unit, to the mobile wireless communication unit using a second radio protocol, different from the first radio protocol. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification