Patents Represented by Attorney Randi L. Karpinia
  • Patent number: 8327414
    Abstract: A method and system for managing a policy includes, in response to determining the presence of a conflict, determining a semantic equivalence between a component of a policy rule and at least one additional policy rule. The determining a semantic equivalence is performed by using a semantic reasoning algorithm that includes the steps of determining a first policy target of a first policy rule and a second policy target of a second policy rule, determining a meaning of the first policy target and a meaning of the second policy rule, assigning a confidence value based on the determined meaning of the first policy, assigning a confidence value based on the determined meaning of the second policy, performing a semantic comparison between the first policy target and the second policy target, and determining, based at least in part on the semantic comparison, the presence of a conflict between the first and second policy targets.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: December 4, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: John C. Strassner, Gregory W. Cox
  • Patent number: 8325653
    Abstract: A system and method for providing security to a wireless network by using a mobile node's location as a parameter for deciding if access is to be given to the node. The system and method employ access points, wireless routers and mobile nodes, each including at least one transceiver adapted to transmit and receive communication signals to and from other wireless routers, mobile nodes and other mobile access points. Each access point is connected to a network management system which allows enhanced network monitoring and control. Each network node includes technology which may determine an absolute node location containing latitude, longitude and altitude of a node, or a relative node location containing the distance and angle between nodes, or a combination of both absolute and relative location data.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: December 4, 2012
    Assignee: MeshNetworks, Inc.
    Inventors: Eric A. Whitehill, Eric D. White
  • Patent number: 8326289
    Abstract: A data interface interconnection gateway (DIIGW) is provided that interconnects to different wireless communication networks. The DIIGW implements methods for determining the network location of a mobile station from among the different wireless communication networks. The DIIGW communicates data link messages over standardized air interfaces in accordance with standardized air interface protocols using a data service that implements an acknowledgement mechanism. Depending on the implementation, the data service can be one of: a short data service (SDS), a TErrestrial Trunked RAdio (TETRA) high speed data service (TEDS), a TETRA packet data service, a short message service (SMS), general packet radio service (GPRS), a text messaging service or a wireless data link service. The DIIGW also implements at least one virtual mobile station that corresponds to a real mobile station that has migrated to a visited wireless communication network.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: December 4, 2012
    Assignee: Motorola Solutions, Inc.
    Inventor: Nicholas M. Gunder
  • Patent number: 8320321
    Abstract: A hybrid TDMA-CSMA MAC protocol is provided for allocating time slots within a frame having a structure in which transmission time is divided into a first number of actual TDMA time slots and a second number of “virtual” CSMA time slots. Each time a given node receives a Hello message, it can calculate variables based on an HSN field. A ratio of the first number to the second number can be dynamically adjusted depending upon the traffic conditions. When TDMA time slots within the frame are freed (e.g., no longer being used), slot position optimization techniques are provided for moving these freed TDMA time slots back into the CSMA portion of the frame and reallocating or moving other TDMA time slots into the portion of the frame that was previously occupied by the freed TDMA time slots to thereby maximize resource utilization.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: November 27, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Avinash Joshi, Manish Shukla
  • Patent number: 8305972
    Abstract: Systems, methods and apparatus are provided for scheduling resources in Orthogonal Frequency-Division Multiple Access (OFDMA) communication networks for “direct link” or peer-to-peer communications among stations operating therein so that OFDMA resources can be allocated to a transmitter station for a peer-to-peer communication session with a receiver station such that near-far issues caused by peer-to-peer communication are reduced/avoided. The disclosed technologies can prevent peer-to-peer communication links using different sub-channels within the same time slot from creating near-far issues for other receiver stations that are within communication range.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: November 6, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Michael H. Baker, Jeffrey D. Bonta, George Calcev, Nitin R. Mangalvedhe, James P. Michels, Nathan J. Smith
  • Patent number: 8305037
    Abstract: A battery powered device includes a base unit, a connector coupled to the base unit for controlling an electronic device, and a retaining cap. The connector further comprises one or more contact points. The retaining cap further comprises a cell for powering the base unit, one or more electrical contact terminals for coupling the cell and the one or more contact points for providing an electrical connection to the base unit, and a locking mechanism for locking the retaining cap to the base unit and for sealing the electrical connection to the base unit. Further, the coupling of the base unit and connector, and locking of the base unit and the retaining cap provides powering of the battery powered device.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: November 6, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Yong Siang Poh, Teik Hua Ng, Chee Fang Wong, Chee Seong Yoon
  • Patent number: 8300618
    Abstract: When a source node (SN) seeks to transmit a first communication stream (FCS) to a destination node (DN), a method is provided for allowing the SN to preempt a lower priority communication stream (LPCS). User priorities are supported during slot scheduling based on stream-identifiers (IDs) and stream priority values exchanged by each of the nodes. A scout request message (SRM), which includes a stream ID and a user priority value of the SN, is transmitted to a next-hop node along a route towards the DN. A node along the route determines if free time slots are available along the route to meet QoS requirements of the FCS, and if not, the node determines whether there is a LPCS in the neighborhood, and if so, the node frees the particular time slots currently being used by the LPCS, and allocates the particular time slots for the FCS.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: October 30, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Avinash Joshi, Manish Shukla
  • Patent number: 8281216
    Abstract: An assignment scheme exploits the Media Access Control (MAC) layer protocol features under various MAC layer call scenarios. In one embodiment, the Hamming distance between pairs of critical Data Units are assigned to codewords with a minimum distance of dmin2=8 bits, thereby increasing the hard decision error correcting capability from 1 bit to 3 bits when deciding between these pairs of Data Units. The method for assigning data unit identification (DUID) codes by a radio operating within a wireless communication system includes determining by the radio whether an expected burst is a 4 Voice Burst with Encryption Synchronization Signaling (4V); when the expected burst is 4V, decoding the DUID within the received burst using an increased minimum distance; and when the expected burst is not 4V, decoding the DUID within the received burst using a minimum distance.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: October 2, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Sanjay G. Desai, Kevin G. Doberstein, Harish Natarahjan
  • Patent number: 8270947
    Abstract: Providing a supplicant access to at least one requested service is described. An authentication request is received, wherein the authentication request comprises an association request and an identifier to a requested service. A relationship between the supplicant and the requested service based on the association request is created. Then, the association request for the requested service is fulfilled and an authentication server based upon the requested service identified in the authentication request is determined. Finally, the supplicant is authenticated for the requested service.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: September 18, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Anthony R. Metke, Bob D. LoGalbo
  • Patent number: 8271009
    Abstract: A method for interrupting voice transmissions within a multi site communication system includes operating a repeater to engage in an interruptible voice communication; to identify an open burst location based on a repeat delay when the interruptible voice communication is sourced directly via a wireless network, and to identify the open burst location as irrelevant when the interruptible voice communication is indirectly sourced via a wireless network; and repeat the interruptible voice communication including the open burst location.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: September 18, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Thomas B. Bohn, Dipendra M. Chowdhary, David G. Wiatrowski
  • Patent number: 8270429
    Abstract: A method of communicating within a mesh network comprises scheduling a mesh access reservation time period for transmission of one or more frames by the mesh device on a channel. During the scheduled mesh access reservation time period: contention for the channel is performed with one or more other mesh devices in the network; and at least one frame is transmitted when the mesh device wins the contention. After the scheduled mesh access reservation time period: when one or more frames scheduled for transmission during the scheduled mesh access reservation time period remain to be transmitted; contention for the channel continues; and the one or more frames are transmitted when the mesh device wins the contention for the channel and when another mesh device has not reserved the channel for the time period.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: September 18, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Ye Chen, Stephen P. Emeott, Hrishikesh Gossain
  • Patent number: 8254974
    Abstract: A method for facilitating transmission of data in a communication system is provided herein. In operation, a base radio of a plurality of base radios combines status information corresponding to a plurality of inbound frequencies and transmits the combined status information on a single outbound radio frequency. Further, each of the plurality of inbound radio frequencies corresponds to one of the plurality of base radios. Then, one or more radio terminals monitor the single outbound radio frequency to receive the combined status information, determine at least one available inbound radio frequency from the plurality of inbound radio frequencies based on the received combined status information, selects an inbound radio frequency of the at least one available inbound frequency, and transmitting the data using the selected inbound radio frequency to the corresponding base radio.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: August 28, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Dipendra M. Chowdhary, Thomas B. Bohn, David G. Wiatrowski
  • Patent number: 8254387
    Abstract: A method, device, and system for establishing and maintaining a multicast group call. The method includes monitoring one or more link parameters for each of a plurality of communication devices associated with the multicast group call. The method further includes selecting, for each of the plurality of communication devices, a sector from a plurality of permitted sectors, the selected sector providing an associated highest signal strength for the communication device and forming a multicast communication zone based on the selected sectors.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 28, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Jeff S. Anderson, Henry W. Anderson, Bradley M. Hiben
  • Patent number: 8248949
    Abstract: A method and device for providing an alternative backhaul portal at a mesh access point in a mesh network as provided enables improved backhaul services. The method includes processing a registration of the mesh access point as an alternative backhaul portal in the mesh network. It is then determined that additional backhaul capacity is required in the mesh network. Next, the mesh access point is activated as an alternative backhaul portal in the mesh network in response to determining that additional backhaul capacity is required. Mesh network data are then routed through the alternative backhaul portal at the mesh access point until it is determined that additional backhaul capacity is no longer required. The mesh access point is then deactivated as an alternative backhaul portal in the mesh network.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: August 21, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Sebnem Zorlu Ozer, Charles R. Barker, Jr., William V. Hasty
  • Patent number: 8248999
    Abstract: A message format for use in one or more multihop flow reservation messages in a multihop wireless network includes a reservation originator identification; a reservation terminator identification; a sequence control; and optionally a flow originator identification. A multihop flow reservation comprises forwarding a traffic stream request including the message format and forwarding a traffic stream reply including the message format along a multihop route. After the traffic stream reservation is completed, a data is forwarded along the multihop route.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: August 21, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Hrishikesh Gossain, Keith J. Goldberg, Sebnem Zorlu Ozer
  • Patent number: 8249105
    Abstract: A dynamic and distributive aggregation method in which a node determines the frame size of an aggregated frame based on or according to a transmission time of one or more of the received frames. This scheme to aggregate frames is based on the average packet size and average transmission time in the neighborhood. The method enables the aggregated packet size to dynamically change based on the neighborhood conditions. Usage of link rates and fair transmission time assignment enables the high data rate nodes to send more traffic but not to an extent of over-utilizing the channel thus achieving higher throughput efficiencies while maintaining fairness within a high data rate multi-hop wireless communication network.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 21, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Avinash Joshi, Pankaj Aggarwal, Manish Shukla
  • Patent number: 8249256
    Abstract: Disclosed is a method for providing fast secure handoff in a wireless mesh network. The method comprises configuring multiple first level key holders (R0KHs) within a radio access network to which supplicants within the multi-hop wireless mesh network are capable of establishing a security association, configuring a common mobility domain identifier within the first level key holders of a mobility domain, and propagating identity of a first level key holder and the mobility domain identifier through the wireless mesh network to enable the supplicants within the mobility domain to perform fast secure handoff.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: August 21, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Michael F. Korus, Ohad Shatil
  • Patent number: 8243639
    Abstract: A method is provided which enables the connection of nodes out of communication range while minimizing the energy consumption in standby nodes. Specifically, the present invention provides a method to control the wake up rate of standby nodes in a multi-hop communication system. An access point collects, processes, and refines statistical information regarding one or more system parameters; determines a wake up rate based on the statistical information and one or more historical information; and transmits the wake up rate to nodes in its coverage area. A node receives the wake up rate; and periodically changes from a sleep state to a wake up state at the wake up rate to support routing functions for providing multi-hop communication to the one or more access points.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 14, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Benedito J. Fonseca, Jr., Jeffrey D. Bonta
  • Patent number: 8243603
    Abstract: A system and method for improving a current wireless communication route, between a source node and a destination node in an on-demand wireless communication network, enables the current communication route to be improved even when the current route has not failed. The method includes analyzing at a local node a packet transmission from the source node, the packet transmission comprising a current route metric (step 705). The local node then determines that it can provide an improved wireless communication route, between the source node and the destination node, having a better route metric than the current route metric (step 710). A route improvement message is then transmitted from the local node to the source node (step 740).
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: August 14, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Hrishikesh Gossain, Avinash Joshi
  • Patent number: 8243750
    Abstract: A method for Fixed Network Equipment (FNE) to control the three of four and one of four slow associated control channel (SACCH) pattern on an Association of Public-Safety Communications Officials (APCO) Project 25 (P25) trunked voice channel is provided. Knowledge of this pattern by both the FNE and radio allows for unique information to be signaled in each type of SACCH. According to some embodiments, an operation enables controlling the floor (inbound) while there is an independent outbound (floor) (e.g. Console takeover). The provided operation also allows each radio to differentiate inbound floor control signaling from outbound caller identification (ID). Having the infrastructure control the inbound SACCH pattern and communicate this to all radios, makes the correct detection of the transmitted pattern from the radio more reliable.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Daniel J. McDonald, Harish Natarahjan