摘要:
A mobile wireless device for use in a wireless network, wherein the wireless network includes regular access points and border access points. The border access points are those access points situated at the edge of the campus or other physical facility associated with the wireless network and they define the edge of the coverage area of the wireless network. The mobile wireless device predicts a possible drop of an active service due to loss of coverage by recognizing when it has connected with a border access point. A warning is output to the user of the mobile wireless device. The mobile wireless device may further recognize if it is located on the exterior side of the border access point away from the interior of the wireless network.
摘要:
Two or more connection profiles stored in a wireless device are partitioned into two or more groups, each group having a different number of sleep intervals associated therewith. The number of sleep intervals associated with a particular group determines a wait between subsequent scans for wireless local area networks matching any profile in that particular group. One or more factors may be taken into consideration when determining how to partition the profiles into groups, including, for example, a connectivity history of the wireless device.
摘要:
The invention provides a method and device that communicate with a 802.11-class network and processes communications with a Bluetooth network. A passive beacon scan is conducted in a channel of a 802.11-class network through a series of spaced segments, such that the series of spaced segments represent a timeframe of a notional beacon period that would span a continuous period for the 802.11-class network; and data is transmitted from the communication device to the Bluetooth network between two of consecutive segments of the series of spaced segments.
摘要:
A method and device for identifying degradation in service quality for a wireless media service. The wireless media service has a known expected packet generation rate, which may be determined by the device based upon the codec and payload size selected on initiating the media service. At a receiving device, the packets actually received by the device from the other termination point are counted over a time period, and this number is compared with the number of packets that were expected based upon the known packet generation rate. From this comparison a packet loss rate may be determined. If the packet loss rate exceeds a threshold level, then the device may issue a user alert, terminate the service, or take other action. The threshold level may be established based upon a packet loss rate corresponding to a significant degree of service quality degradation.
摘要:
In a mobile communication device, a scanning operation is performed with use of a wireless transceiver to identify one or more available wireless communication networks in a given coverage area. Each time the scanning operation fails to result in any connection between the mobile device and a wireless network, the scanning operation is repeated after delaying for a next delay period of a plurality of scanning delay periods n=[n1, n2, . . . , upper limit]. Initially, an upper limit of the plurality of scanning delay periods n=[n1, n2, . . . , upper limit] is established at a value of M. During operation, the mobile device monitors to identify whether a predetermined battery condition, such as a low battery capacity or high battery discharge rate, exists. If the predetermined battery condition exists, the upper limit of the plurality of scanning delay periods n=[n1, n2, . . . , upper limit] is reestablished at a value of N>M. If a more severe battery condition exists, the upper limit of the plurality of scanning delay periods n=[n1, n2, . . . , upper limit] is reestablished at a value of P>N>M. Advantageously, power consumption is reduced during adverse battery conditions of the mobile device.
摘要:
In a mobile communication device, a scanning operation is performed with use of a wireless transceiver to identify one or more available wireless communication networks in a given coverage area. Each time the scanning operation fails to result in any connection between the mobile device and a wireless network, the scanning operation is repeated after delaying for a next delay period of a plurality of scanning delay periods n=[n1, n2, . . . , upper limit]. Initially, an upper limit of the plurality of scanning delay periods n=[n1, n2, . . . , upper limit] is established at a value of M. During operation, the mobile device monitors to identify whether a predetermined battery condition, such as a low battery capacity or high battery discharge rate, exists. If the predetermined battery condition exists, the upper limit of the plurality of scanning delay periods n=[n1, n2, . . . , upper limit] is reestablished at a value of N>M. If a more severe battery condition exists, the upper limit of the plurality of scanning delay periods n=[n1, n2, . . . , upper limit] is reestablished at a value of P>N>M. Advantageously, power consumption is reduced during adverse battery conditions of the mobile device.
摘要:
A wireless local area network client device scans for wireless local area networks using a scanning scheme that takes into account the relative prevalence, in a population of access points, of access point deployment on the channels to be scanned. In one aspect, channels on which more access points in the population are deployed are scanned prior to channels on which fewer access points in the population are deployed. In another aspect, channels on which more access points in the population are deployed are scanned more often than channels on which fewer access points in the population are deployed. In yet another aspect, channels on which more access points in the population are deployed are scanned prior to and more often than channels on which fewer access points in the population are deployed.
摘要:
A mobile wireless device for use in a wireless network, wherein the wireless network includes regular access points and border access points. The border access points are those access points situated at the edge of the campus or other physical facility associated with the wireless network and they define the edge of the coverage area of the wireless network. The mobile wireless device predicts a possible drop of an active service due to loss of coverage by recognizing when it has connected with a border access point. A warning is output to the user of the mobile wireless device. The mobile wireless device may further recognize if it is located on the exterior side of the border access point away from the interior of the wireless network.
摘要:
A method and device for identifying degradation in service quality for a wireless media service. The wireless media service has a known expected packet generation rate, which may be determined by the device based upon the codec and payload size selected on initiating the media service. At a receiving device, the packets actually received by the device from the other termination point are counted over a time period, and this number is compared with the number of packets that were expected based upon the known packet generation rate. From this comparison a packet loss rate may be determined. If the packet loss rate exceeds a threshold level, then the device may issue a user alert, terminate the service, or take other action. The threshold level may be established based upon a packet loss rate corresponding to a significant degree of service quality degradation.
摘要:
A method and mobile device that self-terminates a media service if an out-of-coverage condition is detected. The media service operates on top of a connectionless peer-to-peer packet-based transport protocol. The out-of-coverage condition may relate to the mobile device itself or to a remote mobile device engaged in the media service. The loss of coverage by the remote mobile device may be detected by observing whether the remote mobile device has failed to send any data packets for more than a predetermined period of time. If an out-of-coverage situation is detected, then the method or device initiates service cancellation or release.