摘要:
Techniques are provided for detecting an increase in congestion in a distributed ad hoc network architecture and transitioning from the distributed ad hoc network architecture to a cluster ad hoc network architecture when a sufficient increase in congestion is detected based on one or more congestion level indicator values (CLIVs). Other techniques are provided for detecting a decrease in congestion in cluster ad hoc network architecture and transitioning from the cluster ad hoc network architecture to a distributed ad hoc network architecture when a sufficient decrease in congestion is detected based on one or more congestion level indicator values (CLIVs).
摘要:
Techniques are provided for detecting an increase in congestion in a distributed ad hoc network architecture and transitioning from the distributed ad hoc network architecture to a cluster ad hoc network architecture when a sufficient increase in congestion is detected based on one or more congestion level indicator values (CLIVs). Other techniques are provided for detecting a decrease in congestion in cluster ad hoc network architecture and transitioning from the cluster ad hoc network architecture to a distributed ad hoc network architecture when a sufficient decrease in congestion is detected based on one or more congestion level indicator values (CLIVs).
摘要:
An apparatus for managing contention in a communications system, the apparatus comprising a processor and a non-transitory computer readable storage medium storing programming for execution by the processor. The programming may include instructions to receive a ranging code from a device in a ranging channel, the ranging code corresponding to a current ranging attempt. The programming may further include instructions to broadcast a message acknowledging reception of the ranging code. The programming may further include instructions to receive a ranging request message from the device, the ranging request message comprising a ranging retries parameter that specifies a number of ranging retries that the device performed during the current ranging attempt.
摘要:
A method and apparatus for bi-direction training in D2D/cellular networks. An embodiment method includes sending training symbols to sense interference from the cellular UEs, calculating an interference subspace from the cellular UE to each of the D2D UEs, calculating an orthogonal projection matrix based on the interference subspace calculated, and iteratively updating receive filters through forward training and transmit beamformers through backward training after the orthogonal projection matrix is calculated to align the D2D UEs. In an embodiment, training symbols are sent to sense interference from the cellular UE.
摘要:
A method for reporting a power outage to a communications controller includes detecting the power outage, and selecting a transmission slot from a plurality of transmission slots in order to report the power outage to the communications controller, the transmission slot selected according to a non-uniform probability distribution function, the non-uniform probability distribution function is monotonic with time after the power outage. The method also includes transmitting a first power outage indicator to the communications controller in the transmission slot selected.
摘要:
A method for transmitting to a plurality of responder stations includes transmitting a first direct link setup request message to a first responder station via an access point, the first direct link setup request message including a first group identifier, the first group identifier being received from a communications controller and being associated with the first responder station, and transmitting a second direct link setup request message to a second responder station via the access point, the second setup request message including a second group identifier, the second group identifier being received from the communications controller and being associated with the second responder station. The method also includes transmitting data to the first responder station and the second responder station in a single transmission.
摘要:
An apparatus for managing contention in a communications system, the apparatus comprising a processor and a non-transitory computer readable storage medium storing programming for execution by the processor. The programming may include instructions to receive a ranging code from a device in a ranging channel, the ranging code corresponding to a current ranging attempt. The programming may further include instructions to broadcast a message acknowledging reception of the ranging code. The programming may further include instructions to receive a ranging request message from the device, the ranging request message comprising a ranging retries parameter that specifies a number of ranging retries that the device performed during the current ranging attempt.
摘要:
During route discovery in an ad-hoc communication network, an overlay transceiver (104) determines a plurality of “seed” nodes that lie between the source and the destination node. The seed nodes are notified of the desire to discover a route between the source and the destination node. Once notified, the seed nodes immediately broadcast route discovery messages. All nodes (101) within the underlay communication system (110) periodically listen for route discovery messages. If any node within the underlay communication system (110) receives a route discovery message having the same route identification, route information between the two seeds will be provided to the overlay transceiver (104), giving the overlay communication system a “path” between the seeds. Once the overlay transceiver (104) receives route information between all seeds, it then determines an appropriate route between source and destination devices, and broadcasts this information to the source and the destination devices.
摘要:
During operation, nodes that receive beacons from a different network will synchronize to the different network when a predetermined condition is met. Synchronization to the differing network will only take place if the node receiving the beacon from a different network does not have access to a fixed network coordinator and the predetermined condition is met. The predetermined condition may comprise such things as a Network ID for the different network being larger than the Network ID for the current network, or alternatively, the size of the different network being larger than a size of the current network.
摘要:
A method for transmitting to a plurality of responder stations includes configuring a first responder station for direct link communications, the first responder station being configured with a first group identifier and a first position. The method also includes configuring a second responder station for direct link communications, the second responder station being configured with a second group identifier and a second position. The method further includes transmitting to both the first responder station and the second responder station in a first single transmission, the first single transmission including first information for the first responder station and second information for the second responder station, where the first information is labeled with the first group identifier and located in the first position, and the second information is labeled with the second group identifier and located in the second position.