Non-polled dynamic slot time allocation protocol
DCFirst Claim
1. A system for permitting communications between communications devices along a common channel utilizing slot times, the system having a first communications device configured to allocate a sequence of slot times and to communicate the slot times to communications devices such that the first communications device allocates a second communications device slot time to a second communications device, said system comprising:
- a third communications device being configured to receive a third communications device slot time allocated thereto by the first communications device, and being configured to detect an end of a transmission of the second communications device such that, during the second communications device slot time, said third communications device is adapted to initiate said third communications device slot time in response to detecting said end of said transmission of said second communications device.
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Abstract
A protocol allows a device connected to a common channel to communicate directly with another device on that channel during a predetermined slot time. The protocol is particularly suited to a communications network where all communications devices are able to communicate directly with each other. In architecture, the protocol can be implemented in hardware, software or a combination thereof, and is more particularly implemented as follows. A central communications device for processing slot time sequence information and communicating it to tributary communications devices is connected via any number of communications channels to a plurality of tributary communications devices. The configuration of the system is such that the communications devices can directly transmit and receive information from each other. The central communications device optimizes system bandwidth usage by dynamically allocating a sequence of slot times for use in the protocol. The communication devices then communicate with each other during their assigned slot times under the control of the protocol.
23 Citations
6 Claims
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1. A system for permitting communications between communications devices along a common channel utilizing slot times, the system having a first communications device configured to allocate a sequence of slot times and to communicate the slot times to communications devices such that the first communications device allocates a second communications device slot time to a second communications device, said system comprising:
a third communications device being configured to receive a third communications device slot time allocated thereto by the first communications device, and being configured to detect an end of a transmission of the second communications device such that, during the second communications device slot time, said third communications device is adapted to initiate said third communications device slot time in response to detecting said end of said transmission of said second communications device. - View Dependent Claims (2, 3)
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4. A system for permitting communications between first and second communications devices along a common channel utilizing slot times, the second communications device being configured to detect an end of a transmission of the first communications device such that the second communications device is adapted to initiate a corresponding slot time in response to detecting the end of transmission of the first communications device, said system comprising:
a third communications device configured to allocate a sequence of slot times and to communicate said slot times to the first and second communications devices, said third communications device being configured to allocate a first slot time of said sequence to the first communications device, and to allocate a second slot time of said sequence to said second communications device. - View Dependent Claims (5, 6)
Specification