摘要:
A system and method for providing low overhead floor control in a distributed control two-way radio communications network (200) including one or more subscriber stations (201,205, 213, 215, 217) and one or more peer stations (203, 207, 211) interconnected via an Internet connection (209) using no central control. A subscriber station (201) utilizes a floor request during a timed floor request window (FRW) for requesting floor control to a given peer station (203). The system and method provide for consistent floor control decisions throughout the communications network (200) which includes a policy to block additional floor requests from local subscriber stations once an initial floor request has been received. This enables each peer to receive an identical set of floor requests as every other peer within the FRW such that every peer will grant the floor to the same subscriber.
摘要:
A system and method for providing low overhead floor control in a distributed control two-way radio communications network (200) including one or more subscriber stations (201,205, 213, 215, 217) and one or more peer stations (203, 207, 211) interconnected via an Internet connection (209) using no central control. A subscriber station (201) utilizes a floor request during a timed floor request window (FRW) for requesting floor control to a given peer station (203). The system and method provide for consistent floor control decisions throughout the communications network (200) which includes a policy to block additional floor requests from local subscriber stations once an initial floor request has been received. This enables each peer to receive an identical set of floor requests as every other peer within the FRW such that every peer will grant the floor to the same subscriber.
摘要:
A method and system are provided for associating devices in a personal area network (PAN). Device association is initiated by applying a stimulus to two devices simultaneously, the timing of the stimulus identifying devices to be paired thereby eliminating the need for PINs and passcodes in pairing devices. Upon stimulation the devices record a timestamp (404) for the stimulus and begin searching (406) for other in-range devices with which they can associate. Upon finding an in-range device an association request (408) is sent containing the elapsed time since the stimulus was applied. The in-range device compares the received elapsed time against its internal elapsed time since receiving the stimulus (412) (416) to determine if the stimuli occurred simultaneously to both devices. If the stimuli were substantially simultaneous, then the devices form a PAN association (418).
摘要:
A method for providing enhanced floor control (500) between a dispatch communications network and a cellular telephone communications network includes transmitting a transmit delay message (517) by a network control entity (505) to a communications device (501) in the cellular telephone network when a talk reservation request (515) has first been granted to a communications device (507) in the dispatch network. A transmit grant message (521) is then transmitted from the network control entity (505) to the communications device (501) in the cellular telephone network when the communications device in the dispatch network switches from a transmit mode to receive mode (507). The transmit grant message signals the communications device (501) in the cellular telephone network enabling it to access the dispatch communications network without sending a second talk reservation request.
摘要:
A method and system are provided for associating devices in a personal area network (PAN). Device association is initiated by applying a stimulus to two devices simultaneously, the timing of the stimulus identifying devices to be paired thereby eliminating the need for PINs and passcodes in pairing devices. Upon stimulation the devices record a timestamp (404) for the stimulus and begin searching (406) for other in-range devices with which they can associate. Upon finding an in-range device an association request (408) is sent containing the elapsed time since the stimulus was applied. The in-range device compares the received elapsed time against its internal elapsed time since receiving the stimulus (412) (416) to determine if the stimuli occurred simultaneously to both devices. If the stimuli were substantially simultaneous, then the devices form a PAN association (418).
摘要:
A computing device (100) has memory (180) subdivided into a first configuration of pools of fixed size memory buffers (188). In response to requests for memory specifying a particular memory size, a fixed size memory of at least the particular size is allocated from the memory area (510, 520). Metrics are collected for each memory request, the metrics including distinct memory sizes based on the particular size requested, and the peak number of concurrent requests for each distinct memory size (530). The memory area is reconfigured as needed into a second configuration of pools of fixed size memory buffers using the metrics collected (540, 550).