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Christopher Cave

Christopher Cave, Montreal CA

Patent application numberDescriptionPublished
20090122757INTEGRATED CIRCUIT FOR OPTIMIZING ACCESS POINT CHANNEL SELECTION - A wireless communication method and system for optimizing channel selection for an AP. The channel selection optimization process includes four sub-processes: (1) a measurement process; (2) a candidate channel determining process; (3) a channel selection process; and (4) a channel update process. Candidate channels used for supporting communication performed by the AP are determined. The candidate channels are chosen from an allowable channel set (ACS) if a detected interference of each candidate channel is less than an established maximum allowed interference.05-14-2009
20090168717WIRELESS LOCAL AREA NETWORK RADIO RESOURCE MANAGEMENT ADMISSION CONTROL - In a method for controlling channel access in wireless communications, an admitted time value is calculated for each access category in a station. The admitted time value is a maximum amount of medium time the station can use in a time period. A used time value is calculated for each access category in the station. The used time value is an amount of medium time used by the station. A determination is made whether the used time value is less than the admitted time value. If the used time value is less than the admitted time value, a frame with enhanced distributed channel access (EDCA) parameters is transmitted. If the used time value is not less than the admitted time value, a frame without the EDCA parameters is transmitted.07-02-2009
20090257362WIRELESS COMMUNICATION METHOD AND APPARATUS FOR MANAGING RADIO RESOURCES - During a contention-free period, or silent measurement period, of a first wireless communications channel, signals received on a second wireless communications channel are analyzed. The results of the analysis are used to perform advanced radio resource management functions, such as frequency selection, load balancing, or power management. Each of a plurality of wireless channels may be measured in order to perform the advanced radio resource management functions. During the analysis, an energy detect threshold may be lowered to a minimal value.10-15-2009
20090268671WIRELESS COMMUNICATION METHOD AND APPARATUS FOR IMPLEMENTING ACCESS POINT STARTUP AND INITIAL CHANNEL SELECTION PROCESSES - A startup process of an access point (AP) includes a discovery phase and an announcement phase. During the discovery phase, the AP detects neighboring APs from its own extended service set (ESS), neighboring APs from different ESSs, and external sources of interference. During the announcement phase, the AP transmits its beacon signals at maximum power in order to accelerate recognition by neighboring APs running the discovery phase. An automatic initialization channel selection process of an AP scans channels the AP will use to communicate. Information of each scanned channel is recorded and a best performance channel is determined for use by the AP.10-29-2009
20090298528METHOD FOR CONTROL OF CONTENTION-BASED WIRELESS ACCESS - The present invention is a method for controlling access to a contention-based communication channel. Error types of a transmitted communication signal over the communication channel are classified and corresponding parameters of the communication channel are adjusted in response to the classification to control the rate at which individual error types occur.12-03-2009
20100067473METHOD AND APPARATUS FOR CLEAR CHANNEL ASSESSMENT OPTIMIZATION IN WIRELESS COMMUNICATION - A method and apparatus are directed toward optimizing clear channel assessment (CCA) parameters in wireless communications. A CCA parameter request is received from an optimizing station. A current CCA parameter is read and transmitted to the optimizing station. A notification is received from the optimizing station of an optimized CCA parameter to be used by the optimizing station.03-18-2010
20100202409WIRELESS COMMUNICATION METHODS AND COMPONENTS THAT IMPLEMENT HANDOFF IN WIRELESS LOCAL AREA NETWORKS - This invention relates to wireless local area networks, and particularly to the IEEE 802.11 family of standards. It consists of a method and apparatus that can be implemented in access points (APs) and subscriber wireless transmit/receive units (WTRUs), in order to allow an AP to initiate re-association of a WTRU to itself or a different AP. The invention improves the robustness of the network by enabling more efficient load balancing, congestion control, and roaming, without compromising the user experience.08-12-2010
20110159883SIGNALING CONNECTION ADMISSION CONTROL IN A WIRELESS NETWORK - A method for admission control of control plane signaling requests includes receiving a signaling request. Upon receipt of the signaling connection request, a first determination is performed to determine whether to provide admission to common resources. When the first determination is negative, a second determination is performed to determine whether to provide admission to dedicated resources. When the second determination is negative, the signaling request is rejected. When the second determination is positive, the request is admitted to dedicated resources. When the first determination is positive, a third determination is performed to determine whether the quality of the signaling request is high or low. If the quality of the request is high, the signaling request is admitted to common resources. When the quality is low, a fourth determination is performed to determine whether to provide admission to dedicated resources. If the fourth determination is positive, the request is admitted to dedicated resources. If the fourth determination is negative, the request is admitted to common resources.06-30-2011
20110305139METHOD AND APPARATUS FOR DETERMINING AND MANAGING CONGESTION IN A WIRELESS COMMUNICATIONS SYSTEM - A method and apparatus may be used for network management via MAC measurements. The measurements may include WTRU uplink traffic loading measurement, and an AP service loading measurement. The measurements may be applicable to at least to layers 12-15-2011
20120014353WIRELESS COMMUNICATION METHODS AND COMPONENTS THAT IMPLEMENT HANDOFF IN WIRELESS LOCAL AREA NETWORKS - This invention relates to wireless local area networks, and particularly to the IEEE 802.11 family of standards. It consists of a method and apparatus that can be implemented in access points (APs) and subscriber wireless transmit/receive units (WTRUs), in order to allow an AP to initiate re-association of a WTRU to itself or a different AP. The invention improves the robustness of the network by enabling more efficient load balancing, congestion control, and roaming, without compromising the user experience.01-19-2012

Patent applications by Christopher Cave, Montreal CA

Christopher Cave, Ile-Des-Soeurs CA

Patent application numberDescriptionPublished
20080279146ESCAPE MECHANISM FOR A WIRELESS LOCAL AREA NETWORK - A method for performing frequency selection escape in wireless communications is disclosed. The method includes receiving an activation trigger, determining whether the activation trigger has persisted for a predetermined period of time, determining a list of candidate channels; selecting a channel from the candidate list, and evaluating the selected channel against predetermined criteria, the predetermined criteria being related to the activation trigger. If the selected channel meets the predetermined criteria, then an access point (AP) is disassociated from all stations communicating with the AP; and the AP is changed to the selected channel. If the selected channel does not meet the predetermined criteria, then the selected channel is removed from the candidate list; and the selecting of a channel is repeated if there are additional candidate channels.11-13-2008
20090042583WIRELESS COMMUNICATION METHOD AND APPARATUS FOR IMPLEMENTING ACCESS POINT STARTUP AND INITIAL CHANNEL SELECTION PROCESSES - A startup process of an access point (AP) includes a discovery phase and an announcement phase. During the discovery phase, the AP detects neighboring APs from its own extended service set (ESS), neighboring APs from different ESSs, and external sources of interference. During the announcement phase, the AP transmits its beacon signals at maximum power in order to accelerate recognition by neighboring APs running the discovery phase. An automatic initialization channel selection process of an AP scans channels the AP will use to communicate. Information of each scanned channel is recorded and a best performance channel is determined for use by the AP.02-12-2009

Christopher Cave, Ile-Des-Soeurs (verdun) CA

Patent application numberDescriptionPublished
20090003299METHOD FOR CLEAR CHANNEL ASSESSMENT OPTIMIZATION IN A WIRELESS LOCAL AREA NETWORK - A method and apparatus are directed toward optimizing clear channel assessment (CCA) parameters in a wireless local area network having an access point (AP) and at least one station. An upper bound and a lower bound for an energy detect threshold (EDT) parameter are determined. A value of the EDT parameter is calculated and is bound by the upper bound and the lower bound. The EDT parameter is updated. The method can be performed at each station or at the AP, with the updated CCA parameters being signaled to each station associated with the AP.01-01-2009

Christopher Cave, Candiac CA

Patent application numberDescriptionPublished
20080279157Resource allocation in wireless communication systems - A method and system wherein the coverage area of a plurality of base stations may be evaluated with respect to noise rise and power for assignment of system resources is disclosed. Path loss is measured to determine candidate base stations and at least one timeslot is selected from within the candidate base stations for optimization of the uplink and downlink.11-13-2008

Patent applications by Christopher Cave, Candiac CA

Christopher Cave, Dollar-Des-Ormeaux CA

Patent application numberDescriptionPublished
20110243066Uplink Control Data Transmission - Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.10-06-2011

Christopher Cave, Dollard-Des-Ormeaux CA

Patent application numberDescriptionPublished
20110244806DYNAMIC CONTROL CHANNEL MONITORING SET FOR MULTI-CARRIER OPERATIONS - Systems, methods, and devices are disclosed herein for dynamically controlling channel monitoring in a multi-carrier environment. A UE may monitor one or more channels associated with active carriers. The monitoring by the UE may be established via a network pre-configuring the HS-SCCHs and/or specifying which HS-SCCHs the UE should monitor depending on which carriers are activate. Further, the network may pre-configure a list of HS-SCCHs for each carrier, and the UE may autonomously, following pre-determined rules, increase or decrease the number of HS-SCCHs it monitors on each carrier. In addition, the network may indicate in an HS-SCCH order which HS-SCCHs the UE should stop or start monitoring.10-06-2011
20110250850SYSTEM AND METHOD FOR DETERMINING AIR INTERFACE INFORMATION FOR RADIO RESOURCE MANAGEMENT IN WIRELESS COMMUNICATIONS - A method for determining values for use by radio resource management functions is disclosed. Air interface actual values and predictive values are obtained and stored. A timestamp indicating a time when each actual value or predictive value is obtained is generated and stored. The actual values and the predictive values are processed to provide an output value.10-13-2011

Christopher Cave, Verdun CA

Patent application numberDescriptionPublished
20120140715Method And Apparatus For Assigning Radio Resources And Controlling Transmission Parameters On A Random Access Channel - A method and apparatus for assigning radio resources and controlling parameters for transmission over a random access channel in wireless communications by enhancing a random access channel is disclosed.06-07-2012