摘要:
A wireless communications network includes one or more wireless communications devices and a wireless transmission medium. The one or more wireless communications devices transmit beacon messages across the wireless transmission medium during a beacon period that is within a superframe. The beacon period has a number of beacon slots that is dynamically adjusted.
摘要:
A first device receives a request from a remote device to relinquish at least a portion of an existing reservation in a wireless communications network (e.g., a WiMedia network). The existing reservation is between the first device and a second device. Also, the existing reservation was initiated by the second device and includes a first allocation of resources of the wireless communications network. The first device forwards the request from the first device to the second device, and sends to the second device information indicating a current view of resource utilization in the wireless communications network. This view is from a perspective of the first device. Also, first device may receive a request from the second device for a second allocation of resources of the wireless communications network between the first device and the second device. Such a request may be based on the resource utilization information provided by the first device. Further, the first device may also send, to the second device, an acceptance of the request for the second allocation of resources. Based on this acceptance, the first and second device may communicate according to the second allocation of resources.
摘要:
The invention relates to a method for communicating information between a first wireless communication device (10) and a communications network (30) via a particular second wireless communication device (20), the communications network being said second wireless communication device's own communications network. In the method, the user identification data of said first wireless communication device (10) is transmitted to said second wireless communication device (20). In the method, said second wireless communication device (20) makes a contact to its own communications network (30) on the basis of the user identification data of said first wireless communication device (10) for communicating information between the first wireless communication device (10) and said communications network (30) via said second wireless communication device (20). The invention also relates to said first and second communications devices (10, 20).
摘要:
A method and system of controlling a multicast transmission. The method and system transmits a data packet to multiple slave devices across a UWB wireless network, and detects the reception of any acknowledgement transmissions. These acknowledgement transmissions indicate reception of the data packet by the slave devices. In addition, the method and system retransmit the data packet to at least one of the slave devices when an acknowledgment is not detected for each of the slave devices. The acknowledgments may be received from the UWB network.
摘要:
The present invention relates to systems and methods for a implementing an optimized power conservation communication protocol, wherein the communication link is flexible and the power consumption characteristics are optimized. One facet of the system's flexibility relates to the system's ability to negotiate device control roles associated with a polling communication link. Also, once the device control roles are in place and the communication link is established, the system selectively implements a number of polling protocols for a multitude of applications that need a low power consumption. In some embodiments the system maintains a communication link with a reduced frequency polling protocol. This type of communication link maintains efficient power consumption characteristics, as well as, connection times that are faster than establishing a communication link between disconnected devices.
摘要:
A method, system, and computer program product are disclosed for providing a forwarding feature in the WiMedia MAC communication protocol or in other suitable communication protocols. The method enables a forwarder device to indicate its capability to operate as a forwarder device in its beacon transmissions and to enable an initiating device to utilize the forwarder device for communicating data and/or network control information to destination devices that can be accessed through the forwarder device over two or more hops.
摘要:
The present invention provides techniques for responding to overlapping conditions in wireless communications networks include receiving data transmissions from a transmitting device across a wireless communications network. These data transmissions correspond to a connection with the transmitting device and occur within a reserved portion of a communications resource. An interference condition is detected that includes an allocation of the communications resource for a neighboring device that overlaps with the reserved portion. Based on this detection, the method sends a notification to the transmitting device, the notification indicating the presence of overlapping transmissions in the reserved portion of the communications resource.
摘要:
A method, system and program code are provided to implement a wireless network having a plurality of devices in which one of the devices coordinates wireless communications between the devices. The method and system evaluates device parameters of one or more of the plurality of devices, the device parameters including at least available power source characteristics for a device; and determines a coordinator from the plurality of devices based on at least the available power source characteristics, such as an available power source capacity, for the one or more of the plurality of devices, the coordinator adapted to coordinate wireless communications between the devices in the wireless network.
摘要:
A method and system improves data throughput when performing error control in Ultra Wideband (UWB) communications. The method and system is capable of performing communications via a first wireless communications link and a second wireless communications link. The first wireless communications link is a UWB transmission link and the second wireless communications link is a different type of wireless communications link for communicating error control data for the UWB transmission link.
摘要:
An apparatus (STA) receives from a first node (AP1) at least one channel access related parameter and a first congestion indication; and receives from a second node (AP2) a second congestion indication. The apparatus determines a combined congestion indication which is based at least on the first congestion indication and the second congestion indication; and determines a first channel access parameter for a channel between the apparatus and the first node based at least partly on the at least one channel access related parameter and the combined congestion indication. In specific embodiments, the channel access related parameters may be an initial EDCA parameter and a degradation factor.