Abstract: A communication system is provided that includes a controller providing a map of information to enable communication with a plurality of nodes. The information includes identification of two separate time slots, one for random access requests when a node initially contacts a controller and another for exclusively assigned access to transmit messages. The map further provides information to enable identification of the nodes and assigns transmission frequencies.

Abstract: A communication system is provided that includes nodes and communication controllers each operating with multiple antennas. During communications, the communication controller assigns timeslots to individual nodes for transmitting requests to a controller. When an individual node has data to transmit, the node transmits a request signal to a communication controller over the assigned timeslot. After receipt of a grant, the node transmits the data message in packetized form to the controller. The request, grant and data message can be transmitted and received using multiple antennas on both the node and the controller.

Abstract: A communication system is provided for communication between network nodes and communication controllers. The communication controllers transmit common mode signals C1-C4 in small communication areas between two controllers to enable mobile nodes to be handed off from one controller to another. A node will use the low power common mode signals C1-4 that have common frequencies between two controllers during handoff, and then transition to higher power communication frequencies such as f1-f4 that are used for transmission of general telephone signal messages after handoff. A single communication controller may use multiple common mode signals to overlapping with other controllers, thus providing a wider spectrum of common mode signals than dedicated telephone signals used after handoff.

Abstract: A network communication system is provided for communication between network nodes, including individual nodes and a communication controller. In the network, signals are transmitted from the communication controller to identify a slot of a frame in which individual nodes may transmit a request to transmit data. When a first individual node has data to transmit, the first node transmits a request signal to the controller in its identified slot, the request including randomly generated information (RGI) for identification of the node. In response to the request signal, the controller transmits a grant signal along with the RGI back to the first node to allow the first node to identify the grant.

Abstract: A communication system is provided for communication between network nodes and a communication controller. In the network, a request signal is transmitted from a first node to the communication controller to allow communication with a second node. After grant of the request by the controller, the first node sends its data through the communication controller to the second node. The second node sends an acknowledgement through the communication controller to the first node once the data message is received. The first node then acknowledges receipt of the acknowledgment by the second node.

Abstract: A communication system is provided for communication between network nodes and multiple communication controllers. The communication method provides for request timeslot management, assigning request timeslots to individual nodes. In the network, when an individual node has data to transmit, the node transmits a request signal to a communication controller over an assigned timeslot. For a first node in the network area of a first controller communicating with a second node in the network area of a second communication controller, data is relayed between the first and second communication controllers to enable communication between the first and second nodes. Acknowledgement back that communication is successful is made by a node to a controller indicating a grant was successfully received by the node.

Abstract: A network node in a communication system which transmits at least two reservation requests in order for the node to obtain radio resources for transmitting data. In the network, downstream signals are transmitted from the central control node to identify at least one upstream request opportunity in which nodes may transmit a request signal to the central control node. When a first individual node has data to transmit, the first individual node transmits a request signal to the central control node within the at least one upstream request opportunity. Subsequent to receiving the request signal, the central control node transmits a subsequent downstream signal specifying at least one subsequent request opportunity wherein the first individual node is assigned to subsequently transmit a subsequent request signal. In response to receiving the subsequent downstream signal, the node transmits a subsequent request signal in the subsequent request opportunity assigned to the node.

Abstract: A communication system is provided for communication between network nodes and a communication controller. In the network, a reservation request is transmitted from a node to the communication controller in an assigned timeslot. In response the controller provides a grant of permission to the requesting node to transmit packet data containing a message. The timeslot assigned to the requesting node is one of a series of timeslots occurring repeatedly on a separate frequency. The timeslots will be continuously available to receive requests from nodes irrespective of transmission of data from one node to the controller, or transmission of a grant from the controller to a node.

Abstract: A communication system with at least one controller and a plurality of nodes provides a procedure to enable the controller to connect and send messages to individual nodes to establish and maintain a communication link. The controller further receives an indication from the node when termination of receipt of a message from the controller by the node has occurred. The controller transmits connection information to a node to establish a communication path over which the controller can transmit a message to the node when the controller has information to send. A communication message can be sent by the controller, for example, when a node wanders into its control area to enable a communication link to be established.

Abstract: A communication system is provided for communication between network nodes and multiple communication controllers. The communication method provides for request timeslot management, assigning request timeslots to individual nodes. In the network, when an individual node has data to transmit, the node transmits a request signal to a communication controller over an assigned timeslot. For a first node in the network area of a first controller communicating with a second node in the network area of a second communication controller, data is relayed between the first and second communication controllers to enable communication between the first and second nodes.

Abstract: A communication system is provided for communication between network nodes and a communication controller that provides for request timeslot management. In the network, when an individual node has data to transmit, the node transmits a request signal to the communication controller over an assigned timeslot. The timeslots are assigned to individual ones of the nodes, and the timeslots assigned recur in a repeating fashion. If a timeslot is unused for a predetermined period of time, such as when a node is turned off or simply has no data to transmit, the timeslot is either eliminated or reassigned. Eliminated timeslots reduce unnecessary time delay before request timeslots recur.

Abstract: A communication system is provided for communication between network nodes and a communication controller. In the network, a request-enable signal is transmitted from the communication controller to identify one or more timeslots or frequencies of a communication channel that a node may transmit. When a first individual node has data to transmit, the first individual node transmits a request signal to the communication controller over the same communication channel. In response to the request signal, the central control node transmits a grant signal over the communication channel. Finally, data is transmitted from the node as authorized by the communication controller.

Abstract: A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the central control node to identify one or more frequencies that the node may transmit. When a first individual node has data to transmit, the first individual node transmits a request signal to the central control node over one or more of its assigned frequencies. In response to the request signal, the central control node transmits a grant signal assigning one or more frequencies to allow the first node to transmit its data.

Abstract: A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the central control node to identify specific timeslots in which individual nodes may transmit a request signal to the central control node. When a first individual node then has data to transmit, the first individual node transmits a request signal to the central control node in its identified timeslot requesting allocation of time for transmitting a specified amount of data. In response to the request signal, the central control node transmits a grant signal specifying at least one timeslot allocated to the node for transmit its data to the central control node. The first individual node then in response to the grant signal, transmits its data over the specific timeslots.

Abstract: A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the central control node to identify specific timeslots in which individual nodes may transmit a request signal to the central control node. When a first individual node has data to transmit, the first individual node transmits a request signal to the central control node in its identified timeslot, the request including randomly generated information for identification of the node. In response to the request signal, the central control node transmits a grant signal along with the randomly generated information back to the first node to allow the first node to identify the grant.