摘要:
A method and apparatus for changing the electrical characteristics of an antenna in a communications system includes first and second conductive portions separated by a slot. Circuit elements are coupled between the first and second conductive portions, the circuit elements being operably controlled by a bias current to control flow of RF current within the first and second conductive elements, wherein the path of the RF current is directed to be in substantially different locations within the first and second conductive elements.
摘要:
The present invention relates to testing a mobile device in a lab by providing test signals to the mobile device via a cabled connection which bypasses the actual physical antennas in the mobile device. The test signals emulate a wireless channel and incorporate representative and/or actual measured characteristics of the performance of the antennas in the mobile device. As such, the performance mobile device can be accurately measured without requiring placement in an anechoic chamber, which enables efficient testing over a large set of configurations and underlying conditions.
摘要:
A peer device (132) is arranged and programmed for maintaining a virtual queue for an event, and a personal presence identifier (122) is carried by a user and coupled to the peer device by a short-range two-way wireless link. The peer device and the personal presence identifier are arranged and programmed to establish (58) a two-way personal area network with one another when the personal presence identifier is within wireless transmission range of the peer device. The personal presence identifier and the peer device are also arranged and programmed to exchange (82) needs specifications and capability specifications with one another after establishing the two-way personal area network.
摘要:
In a method for allocating a system resource to subscribers of a wireless communication system a resource sensitivity indicator is determined for a system resource allocated by the wireless communication system for each of a first subscriber and a second subscriber. The system resource may include a level of service, a channel frequency, or a data rate. Next, an inefficient allocation of the system resource detected. One of the first and second subscribers having a lower resource sensitivity indicator is selected. Finally, an allocation of the system resource is changed for the selected subscriber unit to increase the efficiency of the allocation of the system resource.
摘要:
A method for assigning subscribers between narrowbeam sectors includes, in a first embodiment, off-loading subscribers to alternate sectors when a current sector becomes loaded beyond a loading threshold. The subscriber(s) having the greatest signal quality measure (e.g., power setting) are preferably selected for off-loading, since such are typically in regions having the greatest overlap with other sectors (e.g., close to the antennas). The selected subscriber(s) are transferred to an alternate sector, preferably one having the best received signal quality with the subscriber and also having loading beneath the loading threshold.
摘要:
A method within and wireless communications unit (WCU) arranged to operate in a fixed wireless network including a transceiver for receiving and transmitting signals within the network; an antenna system having adjustable visibility to the fixed wireless network; and a controller, coupled to the transceiver and the antenna system, to control the transceiver and to adjust the visibility of the antenna system such that the visibility of the WCU to the fixed wireless network is adjustable.
摘要:
A system (10) alerts mobile devices (12) that are powered by replenishable power sources (14). A communications link is established between a replenishment service provider and the mobile devices (12). The replenishment service provider alerts the mobile devices (12) as to the availability of one or more replenishment services within a service area.
摘要:
A method of and wireless communications unit (WCU) for providing service in a mesh network includes a receiver for receiving a first signal from a first WCU in the mesh network; a directional antenna system for coupling the signal to the receiver, the signal arriving from a first selected one of a first plurality of directions; a controller to control the directional antenna system such that the signal is coupled to the receiver according too a local predetermined pattern of the first plurality of directions; and a transmitter to send a second signal in a second selected one of the first plurality of directions, where the controller interrupts the local predetermined pattern and selects the second direction.
摘要:
In a method for managing resources in a base station in a code division multiple access cellular communication, a resource shortage of a selected resource in a first base station is detected. Next, a subscriber unit having a communication link with the first base station is selected. Thereafter, a handoff direction message is sent to the selected subscriber unit to cause a second base station to contribute the selected resource, wherein the resource shortage in the first base station is alleviated. Resources that may experience shortages in the first base station include transmit power and available user spreading codes.
摘要:
A method and apparatus for assigning location estimates from a first transceiver of a plurality of wireless transceivers to a second transceiver is disclosed. The present invention makes use of a low power short-range auxiliary communication link incorporated within networked devices to interact with nearby devices for obtaining location estimates of the current location of a device. Confidence levels are then assigned to the information obtained from the interactions with the nearby devices, and a determination of whether to update the location estimate is made.