Abstract:
A method of enabling wireless data transfer to an electronic device having a first transceiver structured to interact with a first wireless network and a second transceiver structured to interact with a second wireless network including repeatedly powering up the second transceiver to await receipt of a second beacon signal through the second wireless network, receiving an instance of the second beacon signal with an indication of availability of data to be transferred to the electronic device through the first wireless network, and in response to the receiving of the instance of the second beacon signal with the indication of availability of the data, powering up the first transceiver to receive the data through the first wireless network.
Abstract:
A method of enabling wireless data transfer to an electronic device having a transceiver structured to interact in a first mode with a first wireless network and in a second mode with a second wireless network, including repeatedly powering up the transceiver and enabling the second mode to await receipt of a second beacon signal through the second wireless network, receiving an instance of the second beacon signal with an indication of availability of data to be transferred to the electronic device through the first wireless network, and in response to the receiving of the instance of the second beacon signal with the indication of availability of the data, enabling the first mode to receive the data through the first wireless network.
Abstract:
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.
Abstract:
The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.
Abstract:
In a wireless network having an access point and at least one wireless end device, the access point is operable to differentiate between normal communications and interference from another device in order to capture a sample of the interference, determine whether the interference originates from a known type of device, and prompt remedial actions such as moving communications to a distant channel, increasing transmission power, changing data rate, and packet fragmentation based on whether the interference originates from a known type of device. Interference pulse duration may be used to at least initially narrow the possible sources of interference. Pulse period may be employed to differentiate between interference sources which exhibit similar pulse duration. If pulse duration and period are not sufficient to identify the interference source then other characteristics may be examined, such as pulse waveform, roll off and period in relation to local power frequency. In the case of microwave interference it is generally best to move to a distant channel. Increased transmission power and packet fragmentation can be used to maintain communications while scanning for a new channel.
Abstract:
In the presence of high priority traffic received at a mobile station over a wireless medium or to be transmitted by the mobile station over the wireless medium, a fragmentation threshold in a wireless local area network (WLAN) medium access control (MAC) layer of the mobile station is adjusted according to a highest priority of the traffic. Packets received by the WLAN MAC layer are fragmented into packets each of which is no larger than the fragmentation threshold.
Abstract:
A mobile station associated with a base station determines a measure of the quality of a communication link between the mobile station and the base station. The measure takes into account (a) RF power levels of signals received at the mobile station over the link and (b) an actual data rate of communications over the link. This measure of the quality of the link may be a factor in triggering the mobile station to initiate a handoff.
Abstract:
The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.
Abstract:
Methods and systems for wireless network management are described. In one embodiment, a radio measurement of a characteristic of a wireless access technology may be taken. The wireless access technology may enable data communication through a wireless network when connected to an access point. A report may be transmitted through an alternate access technology. The report may be based on the radio measurement. Additional methods and systems are disclosed.