Wireless network medium access control protocol
View Patent ↗A device for use in a packet-oriented transmission network comprises a transmitter arranged to transmit a sequence comprising at least one data packet and a receiver arranged to receive a sequence comprising at least one data packet. At least one data packet in one of the transmitted or received sequence of data packets includes at least one pointer to indicate when a designated data packet in the sequence is to be received and/or transmitted. The designated data packet includes an indication of at least one other device connected to the packet-oriented transmission network.
1. A master wireless network device including a wireless medium adaptor and a component implementing a medium access protocol, said component being arranged to cause said adaptor to transmit temporally spaced packets of information, and said component being arranged to receive packets of information through said adaptor from slave network devices, at least some of said transmitted packets including a pointer indicating the relative time before which a designated packet of information will be transmitted, said designated packet of information including an indication of the slave network devices participating in said network and respective indications as to when participating slave network devices should transmit packets of information for reception by said master wireless network device.
2. A master wireless network device according to claim 1 wherein said component is adapted to receive packets of information from one or more slave network devices not participating in said network during a pre-determined time period between packets of information transmitted by said master wireless network device.
3. A master wireless network device according to claim 1 wherein said component is arranged provide said respective indications as to when participating slave network devices should transmit packets of information, so that packets of information transmitted by said master wireless network device alternate with packets of information transmitted by respective slave network devices.
4. A master wireless network device according to claim 3 wherein at least some of the packets of information transmitted by said master wireless network device include a further pointer indicating to a slave device which is to transmit a packet next, when said master wireless network device is to transmit a packet for said slave device next.
5. A master wireless network device according to claim 1 wherein said component is arranged to cause said wireless medium adaptor to transmit packets of information on different frequencies.
6. A master wireless network device according to claim 5 wherein said component is arranged to cause said wireless medium adaptor to transmit packets of information on frequencies which are a function of the identity of said master wireless network device.
7. A master wireless network device according to claim 1 wherein said component is arranged to include in at least some transmitted packets of information an indication of the frequency on which said designated packet of information will be transmitted.
8. A master wireless network device according to claim 1 wherein said component is arranged to include in said designated packet of information an indication of network services offered by said master wireless network device.
9. A slave wireless network device including a wireless medium adaptor and component implementing a medium access protocol, said component being arranged to cause said adaptor to transmit temporally spaced packets of information, and said component being arranged to receive packets of information through said adaptor from one or more master network devices, at least some of said received packets including a pointer indicating the relative time before which a designated packet of information will be transmitted by said master network device, said designated packet of information including an indication of the slave network devices participating in said network and respective indications as to when participating slave network devices should transmit packets of information for reception by said master wireless network device.