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Message: WiLan Patent applications in 2012 from SH............
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Patent application number Title Published
WI-LAN INC. Patent applications
20120077535 ASSIGNING RADIO CHANNELS IN A WIRELESS NETWORK - A method and apparatus are provided for assigning radio channels to a set of base stations in a wireless network, including determining a plurality of available radio channels that the set of base stations have at their disposal for communications, selecting at least one of the plurality of available radio channels for a first plurality of the base stations, selecting at least another one of the plurality of available radio channels for at least a second plurality of the base stations, and assigning the selected radio channels to the corresponding pluralities of base stations. 03-29-2012
20120069759 METHODS AND APPARATUS FOR IDENTIFYING SUBSCRIBER STATION MOBILITY - Methods and apparatus for identifying a subscriber station which is in motion, determining a mobility metric indicative of a level of mobility of the subscriber station and varying or updating one or more operating parameters based on the mobility metric. An apparatus can determine a measure of mobility based on one or a combination of a plurality of factors, such as variations in signal strength, variations in a channel estimate, or variations in phase or frequency of a particular signal or signal component. The one or more measures of mobility can be combined to form a single measure of mobility, the measure of mobility can be quantized to a predetermined number of mobility levels and one or more operating parameters can be varied or adjusted based on the mobility level. 03-22-2012
20120063415 IMS FEMTOCELL FOR VOICE, DATA AND VIDEO - An Internet Protocol Multimedia System (IMS) femtocell serves as a base station and base station controller in a wireless/wireline service provider's macro network and a Wi-Fi access point to seamlessly support cellular and packet user devices and deliver both circuit switched and packet switched services inside a building. 03-15-2012
20120044829 SYSTEM AND METHOD FOR FACILITATING CO-CHANNEL AND CO-EXISTENCE VIA ENHANCED FRAME PREAMBLES - Enhanced frame preambles facilitate co-channel co-existence in a wireless communication environment by having at least one preamble characteristic that connotes channel-sharing information regarding the wireless communication environment. In an exemplary embodiment, a downlink subframe is received in one or more wireless communication signals in a wireless communication environment. A preamble is detected in the downlink subframe, and at least one characteristic of the preamble is ascertained. Channel-sharing information for the wireless communication environment is determined based upon the at least one characteristic of the preamble. In another exemplary embodiment, a channel is scanned to detect secondary preambles being transmitted on the channel. A current preamble configuration, including a permutation of preamble location and preamble content corresponding to the secondary preambles, is determined, which connote channel-sharing information. A next available preamble location may be adopted based on the current preamble configuration. 02-23-2012
20120034949 SIGNAL TRANSMISSION PARAMETER CONTROL USING CHANNEL SOUNDING - A base station (BTS) may instruct a client station (CS) to transmit sounding signals that the BTS may analyze to determine what adjustments, such as power, time, and/or frequency adjustment(s) should be made by the CS. The BTS may control when and how the sounding signals are sent by the CS. This helps reduce the possibility of adjustment signals transmitted by two or more CSs colliding. Thus, sounding signals transmitted by the CS in response to a request by the BTS can be received by the BTS with higher a probability of success. This permits the BTS to more accurately characterize the channel and to provide better adjustment of power level, frequency offset, and/or timing offset for more optimal communication. Such techniques can be used to reduce bit error rates and to improve the overall signal to noise ratio encountered by the system. 02-09-2012
20120033634 METHOD AND SYSTEM FOR ADAPTIVELY OBTAINING BANDWIDTH ALLOCATION REQUESTS - A method and apparatus for adaptively obtaining bandwidth requests in a broadband wireless communication system. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. A user may “piggyback” a new bandwidth request upon, or set a “poll-me bit” within, presently allocated bandwidth. A base station may poll users, individually or in groups, by allocating unrequested bandwidth for new requests. Polling may respond to a “poll-me bit,” and/or it may be adaptively periodic at a rate based on communication status parameters, such as recent communication activity and connection QoS levels Group polling permits a possibility of collisions. Polling policies may be established for dynamically varying user groups, or may be determined for each user. Dynamic selection of appropriate polling techniques makes use of efficiency benefits associated with each technique. 02-09-2012
20120033633 METHOD AND SYSTEM FOR ADAPTIVELY OBTAINING BANDWIDTH ALLOCATION REQUESTS - A method and apparatus for adaptively obtaining bandwidth requests in a broadband wireless communication system. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. A user may “piggyback” a new bandwidth request upon, or set a “poll-me bit” within, presently allocated bandwidth. A base station may poll users, individually or in groups, by allocating unrequested bandwidth for new requests. Polling may respond to a “poll-me bit,” and/or it may be adaptively periodic at a rate based on communication status parameters, such as recent communication activity and connection QoS levels Group polling permits a possibility of collisions. Polling policies may be established for dynamically varying user groups, or may be determined for each user. Dynamic selection of appropriate polling techniques makes use of efficiency benefits associated with each technique. 02-09-2012
20120033598 MBS WITH OUTER CODING AND ADJUSTED FRAME REFERENCE - The subject matter disclosed herein provides methods and apparatus for providing MBS (multicast broadcast service) with outer coding and adjusted frame reference indexing. In one aspect, there is provided a method. The method includes receiving data packets from a network, dividing the data packets into one or more data streams, applying outer encoding on the one or more data streams and providing the one or more encoded data streams to an air interface for transmission to a user equipment over a wireless communication system. 02-09-2012
20120033566 HYBRID FEEDBACK FOR CLOSED LOOP MULTIPLE-INPUT MULTIPLE- OUTPUT - The subject matter disclosed herein provides methods and apparatus for closed loop operation of a wireless system implementing multiple input and multiple output (MIMO). In one aspect, there is provided a method. The method may provide channel estimation feedback to a base station by a user equipment in a wireless communication system. The method includes receiving downlink data from the base station, calculating a digital portion representing a channel parameter estimation of the downlink data, calculating an analog portion representing an error estimation of the digital portion and providing, as feedback, the digital portion and the analog portion to the base station. 02-09-2012
20120026873 METHOD AND SYSTEM FOR ADAPTIVELY OBTAINING BANDWIDTH ALLOCATION REQUESTS - A method and apparatus for adaptively obtaining bandwidth requests in a broadband wireless communication system. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. A user may “piggyback” a new bandwidth request upon, or set a “poll-me bit” within, presently allocated bandwidth. A base station may poll users, individually or in groups, by allocating unrequested bandwidth for new requests. Polling may respond to a “poll-me bit,” and/or it may be adaptively periodic at a rate based on communication status parameters, such as recent communication activity and connection QoS levels Group polling permits a possibility of collisions. Polling policies may be established for dynamically varying user groups, or may be determined for each user. Dynamic selection of appropriate polling techniques makes use of efficiency benefits associated with each techn
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