11
`1
`14
`21
`44
`11. A communicator for wirelessly
`14. A communicator for wirelessly
`21. A communicator for wirelessly
`44. A communicator for wirelessly
`6. A communicator for wirelessly
`
`
`
`
`transmitting frames to and receivingtransmitting frames to and receivingtransmitting frames to and receivingtransmitting frames to and receivingtransmitting frames to and receiving
`frames from a least one additional
`frames from a least one additional
`frames from a least one additional
`frames from a least one additional
`frames from a least one additional
`
`
`
`
`communicator in accordance with a communicator in accordance with a communicator in accordance with a communicator in accordance with a communicator in accordance with a
`predetermined medium access
`predetermined medium access
`predetermined medium access
`predetermined medium access
`predetermined medium access
`control protocol, the
`control protocol, the
`control protocol, the
`control protocol, the
`control protocol, the
`communicators which transmit and
`communicators which transmit and
`communicators which transmit and
`communicators which transmit and
`communicators which transmit and
`receive the frames constituting a
`receive the frames constituting a
`receive the frames constituting a
`receive the frames constituting a
`receive the frames constituting a
`Group, each communicator
`Group, each communicator
`Group, each communicator
`Group, each communicator
`Group, each communicator
`including a transmitter and a
`including a transmitter and a
`including a transmitter and a
`including a transmitter and a
`including a transmitter and a
`receiver for transmitting and
`receiver for transmitting and
`receiver for transmitting and
`receiver for transmitting and
`receiver for transmitting and
`receiving the frames respectively,
`receiving the frames respectively,
`receiving the frames respectively,
`receiving the frames respectively,
`receiving the frames respectively,
`
`
`
`
`the medium access control protocol the medium access control protocol the medium access control protocol the medium access control protocol the medium access control protocol
`controlling each communicator of
`controlling each communicator of
`controlling each communicator of
`controlling each communicator of
`controlling each communicator of
`the Group to effect predetermined
`the Group to effect predetermined
`the Group to effect predetermined
`the Group to effect predetermined
`the Group to effect predetermined
`functions comprising:
`functions comprising:
`functions comprising:
`functions comprising:
`functions comprising:
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators Of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`ST. JUDE 1008
`
`1
`
`
`1
`14
`21
`44
`11. A communicator for wirelessly
`14. A communicator for wirelessly
`21. A communicator for wirelessly
`44. A communicator for wirelessly
`6. A communicator for wirelessly
`
`
`
`
`transmitting frames to and receivingtransmitting frames to and receivingtransmitting frames to and receivingtransmitting frames to and receivingtransmitting frames to and receiving
`frames from a least one additional
`frames from a least one additional
`frames from a least one additional
`frames from a least one additional
`frames from a least one additional
`
`
`
`
`communicator in accordance with a communicator in accordance with a communicator in accordance with a communicator in accordance with a communicator in accordance with a
`predetermined medium access
`predetermined medium access
`predetermined medium access
`predetermined medium access
`predetermined medium access
`control protocol, the
`control protocol, the
`control protocol, the
`control protocol, the
`control protocol, the
`communicators which transmit and
`communicators which transmit and
`communicators which transmit and
`communicators which transmit and
`communicators which transmit and
`receive the frames constituting a
`receive the frames constituting a
`receive the frames constituting a
`receive the frames constituting a
`receive the frames constituting a
`Group, each communicator
`Group, each communicator
`Group, each communicator
`Group, each communicator
`Group, each communicator
`including a transmitter and a
`including a transmitter and a
`including a transmitter and a
`including a transmitter and a
`including a transmitter and a
`receiver for transmitting and
`receiver for transmitting and
`receiver for transmitting and
`receiver for transmitting and
`receiver for transmitting and
`receiving the frames respectively,
`receiving the frames respectively,
`receiving the frames respectively,
`receiving the frames respectively,
`receiving the frames respectively,
`
`
`
`
`the medium access control protocol the medium access control protocol the medium access control protocol the medium access control protocol the medium access control protocol
`controlling each communicator of
`controlling each communicator of
`controlling each communicator of
`controlling each communicator of
`controlling each communicator of
`the Group to effect predetermined
`the Group to effect predetermined
`the Group to effect predetermined
`the Group to effect predetermined
`the Group to effect predetermined
`functions comprising:
`functions comprising:
`functions comprising:
`functions comprising:
`functions comprising:
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators Of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`designating one of the
`communicators of the Group as a
`hub and the remaining the
`communicators of the Group as
`remotes;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`the hub establishing repeating
`communication cycles, each of
`which has intervals during which
`the hub and the remotes transmit
`and receive frames;
`
`ST. JUDE 1008
`
`1
`
`
`
`44
`21
`14
`11
`1
`the hub transmitting information to
`the hub transmitting information to
`the hub transmitting information to
`the hub transmitting information to
`the hub transmitting information to
`the remotes to establish the
`the remotes to establish the
`the remotes to establish the
`the remotes to establish the
`the remotes to establish the
`
`
`
`
`communication cycle and a pluralitycommunication cycle and a pluralitycommunication cycle and a pluralitycommunication cycle and a pluralitycommunication cycle and a plurality
`of predeterminable intervals during
`of predeterminable intervals during
`of predeterminable intervals during
`of predeterminable intervals during
`of predeterminable intervals during
`each communication cycle, the
`each communication cycle, the
`each communication cycle, the
`each communication cycle, the
`each communication cycle, the
`
`
`
`
`intervals being ones when the hub isintervals being ones when the hub isintervals being ones when the hub isintervals being ones when the hub isintervals being ones when the hub is
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`remotes, when the remotes are
`remotes, when the remotes are
`remotes, when the remotes are
`remotes, when the remotes are
`remotes, when the remotes are
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`hub, and when each remote is
`hub, and when each remote is
`hub, and when each remote is
`hub, and when each remote is
`hub, and when each remote is
`expected to receive a frame from
`expected to receive a frame from
`expected to receive a frame from
`expected to receive a frame from
`expected to receive a frame from
`the hub;
`the hub;
`the hub;
`the hub;
`the hub;
`
`the remotes powering off their
`the remotes powering off their
`the remotes powering off their
`the remotes powering off their
`the remotes powering off their
`transmitters during times other than
`transmitters during times other than
`transmitters during times other than
`transmitters during times other than
`transmitters during times other than
`those intervals when the remote is
`those intervals when the remote is
`those intervals when the remote is
`those intervals when the remote is
`those intervals when the remote is
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`allowed to transmit frames to the
`hub, by using the information
`hub, by using the information
`hub, by using the information
`hub, by using the information
`hub, by using the information
`transmitted from the hub;
`transmitted from the hub;
`transmitted from the hub;
`transmitted from the hub;
`transmitted from the hub;
`
`the remotes powering off their
`receivers during times other than
`those intervals when the remote is
`expected to receive a frame from
`the hub, by using the information
`transmitted from the hub;
`
`the remotes powering off their
`receivers during times other than
`those intervals when the remote is
`expected to receive a frame from
`the hub, by using the information
`transmitted from the hub;
`
`the remotes powering off their
`receivers during times other than
`those intervals when the remote is
`expected to receive a frame from
`the hub, by using the information
`transmitted from the hub;
`
`the remotes powering off their
`receivers during times other than
`those intervals when the remote is
`expected to receive a frame from
`the hub, by using the information
`transmitted from the hub;
`
`the remotes powering off their
`receivers during times other than
`those intervals when the remote is
`expected to receive a frame from
`the hub, by using the information
`transmitted from the hub;
`
`2
`
`
`
`1
`the hub assigning transmission
`opportunities to the remotes, each
`transmission opportunity being an
`interval for a remote to transmit
`frames to the hub;
`
`11
`the hub assigning transmission
`opportunities to the remotes, each
`transmission opportunity being an
`interval for a remote to transmit
`frames to the hub;
`
`14
`the hub establishing the length of
`each communication cycle; and
`
`44
`the communicators transmitting a
`transfer unit from one
`communicator to another which
`contains a plurality of frames;
`
`21
`the hub transmitting two frames
`containing information to establish
`the plurality of predeterminable
`intervals during each
`communication cycle, the second
`frame containing the information to
`established the plurality of
`predeterminable intervals occurring
`before the intervals in which the
`remotes are allowed to transmit
`frames to the hub.
`
`the hub transmitting transmission
`opportunity allocation information
`in a frame transmitted by the hub;
`and
`
`the hub transmitting transmission
`opportunity allocation information
`in a frame transmitted by the hub;
`
`the hub transmitting a frame
`containing information describing
`the length of the communication
`cycle prior to the end of the
`communication cycle whose length
`is established.
`
`the hub allocating a number of
`the hub monitoring the frames
`transmission opportunities during at
`transmitted by each remote during
`least one communication cycle
`its transmission opportunity; and
`which is at least one less in number
`than the number of remotes in the
`Group.
`
`the hub revoking a previous
`transmission opportunity allocation
`of a remote which has not
`transmitted more than a
`predetermined number of frames
`during a previous number of
`communication cycles.
`
`the remotes transmitting a transfer
`unit having a header having at least
`one field containing information
`describing at least one frame of a
`previous transmission unit which
`was not successfully received by
`the hub; and
`
`the hub responding to the field
`information describing the frame
`which was successfully received by
`transmitting in another subsequent
`transfer unit those remaining frames
`of the previous transfer unit which
`were not successfully received.
`
`3
`
`
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