Network communication system wherein a node obtains resources for transmitting data by transmitting two reservation requests
DC CAFCFirst Claim
1. A first node in a data network, the data network including a plurality of nodes including a first node, the first node comprising:
- at least one processor;
a memory providing code to the least one processor; and
an interface controlled by the least one processor to;
transmit a random access request signal in a first slot, the random access request signal including information that allows determination that the first node requires an allocation of resources to transmit a reserve access request signal;
receive a first grant signal subsequent to transmission of the random access request signal, said first grant signal including information relating to an allocation of a second slot to the first node for transmitting the reserve access request signal for transmitting first data packets containing a message;
transmit the reserve access request signal in the second slot in response to the first grant signal;
receive a second grant signal subsequent to transmission of the reserve access request signal, said second grant signal including information relating to an allocation of additional resources for transmitting the first data packets; and
transmit the first data packets in response to the second grant signal, wherein the first data packets can be transmitted during transmission of a request signal by a second node into a third slot assigned to the second node.
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Abstract
A network node in a communication system makes two reservation requests to a controller node in order for the network node to obtain resources from the controller to transmit data. In the network, downstream signals are transmitted from the controller to identify a first slot in which nodes may transmit random access requests to the controller. When a first node has data to transmit, the first node transmits a random access request signal to the controller in the first slot. The controller then transmits a downstream signal assigning a second slot for the first node to transmit a reserve request signal. In response the first node transmits a reserve request signal in the second slot. The controller then transmits a downstream signal which allocates resources to the first node to transmit its data.
98 Citations
48 Claims
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1. A first node in a data network, the data network including a plurality of nodes including a first node, the first node comprising:
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at least one processor; a memory providing code to the least one processor; and an interface controlled by the least one processor to; transmit a random access request signal in a first slot, the random access request signal including information that allows determination that the first node requires an allocation of resources to transmit a reserve access request signal; receive a first grant signal subsequent to transmission of the random access request signal, said first grant signal including information relating to an allocation of a second slot to the first node for transmitting the reserve access request signal for transmitting first data packets containing a message; transmit the reserve access request signal in the second slot in response to the first grant signal; receive a second grant signal subsequent to transmission of the reserve access request signal, said second grant signal including information relating to an allocation of additional resources for transmitting the first data packets; and transmit the first data packets in response to the second grant signal, wherein the first data packets can be transmitted during transmission of a request signal by a second node into a third slot assigned to the second node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A controller in a network including a plurality of nodes, the controller comprising:
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at least one processor; a memory providing code to the at least one processor; and at least one interface controlled by the at least one processor to; receive a random access request signal transmitted by a first node in the plurality of nodes in a first slot, the random access request signal including information that allows the controller to determine that the first node requires an allocation of resources to transmit a reserve access request signal; transmit a first grant signal subsequent to receipt of the random access request signal, said first grant signal including information relating to an allocation of a second slot to the first node for transmitting the reserve access request signal for transmitting first data packets containing a message; receive the reserve access request signal from the first node subsequent to transmission of the first grant signal; transmit a second grant signal subsequent to receipt of the reserve access request signal from the first node, said second grant signal including information related to an allocation of additional resources to the first node for transmitting the first data packets, said second grant signal including information related to a third slot wherein a second node may transmit a request signal; and receiving first data packets from the first node subsequent to transmission of the second grant signal, wherein the first data packets are received from the first node during reception of a request signal from the second node provided in a third slot. - View Dependent Claims (26, 27, 28, 29)
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30. A first node in a data network, the data network including a plurality of nodes, the first node comprising:
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at least one processor; a memory providing code to the processor; and at least one interface controlled by the processor to; transmit a random access request signal in a first slot, the random access request signal including information that allows determination that the first node requires an allocation of resources to transmit a reserve access request signal; receive a first grant signal subsequent to transmission of the random access request signal, said first grant signal including information relating to an allocation of a second slot to the first node for transmitting the reserve access request signal for transmitting first data packets containing a message; transmit the reserve request signal in the second slot subsequent to receiving the first grant signal; receive a second grant signal subsequent to transmission of the reserve request signal, said second grant signal including information relating to an allocation of additional resources for transmitting the first data packets; and transmit the first data packets in response to the second grant signal, wherein the interface farther transmits information relating to a total number of related ones of the first data packets being transmitted together, wherein the total number of related packets being transmitted comprises a count value to enable a receiving node in the plurality of nodes to determine when the first data packets being transmitted together are completely received. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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39. A first node in a data network, the data network including a plurality of nodes, the first node comprising:
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at least one processor; a memory providing code to the processor; and at least one interface controlled by the processor to; transmit a random access request signal in a first slot, the random access request signal including information that allows determination that the first node requires an allocation of resources to transmit a reserve access request signal; receive a first grant signal subsequent to transmission of the random access request signal, said first grant signal including information relating to an allocation of a second slot to the first node for transmitting the reserve access request signal for transmitting first data packets containing a message; transmit the reserve request signal in the second slot subsequent to receiving the first grant signal; receive a second grant signal subsequent to transmission of the reserve request signal, said second grant signal including information related to an allocation of additional resources for transmitting the first data packets; and transmit the first data packets in response to the second grant signal, wherein the random access request signal transmitted from the first node includes randomly generated information created by the first node, and wherein the first grant returns said randomly generated information to the first node to enable identification of the first node as a desired recipient of the first grant. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification