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Chandra S. Bontu

Chandra S. Bontu, Kanata CA

Patent application numberDescriptionPublished
20110080890Handover Mechanisms With Synchronous PDCP Protocol Under Various Relay Architectures - A method is provided for handing over a user equipment (UE). The method includes a donor access node with which the UE is in communication via a relay node receiving UE handover context information. The method further includes the donor access node using the UE handover context information to identify data packets that belong to the UE and are to be forwarded from the donor access node to a target access node.04-07-2011
20110080891System and Method for Handover Between Relays - A method is provided for handing over a user equipment (UE). The method includes a donor access node with which the UE is in communication via a serving relay node receiving UE context information. The method further includes the donor access node using the UE context information to identify data packets that belong to the UE, wherein the data packets are forwarded from the serving relay node to a target relay node.04-07-2011
20110080892Architecture For Termination At Access Device - A method is provided for handing over a user equipment (UE). The method includes a donor access node with which the UE is in communication via a relay node receiving UE context information from the relay node. The method further includes the donor access node using the UE context information to identify data packets that belong to the UE.04-07-2011

Chandra S. Bontu, Ottawa CA

Patent application numberDescriptionPublished
20100322143Uplink Transmissions for Type 2 Relay - A method for providing user agent data. The method includes an access node receiving an indicator sent from a relay node as an indication that the relay node has received data from the user agent.12-23-2010
20100322145Type II Relay Node Initialization Procedures - A relay node including one or more components configured to encode a message to be transmitted to an access node, the message used to identify the relay node as a relay node during initialization of the relay node.12-23-2010
20100323614Mobile Station Association Procedures with Type II Relays - A relay node including one or more components configured to measure a signal strength of sounding reference signals (SRS) received from a mobile station, and in response to the signal strength being above a predetermined threshold, to transmit a first request to an access node. The first request is for the access node to associate the mobile station with the relay node.12-23-2010
20100323684Downlink Reference Signal for Type II Relay - A network comprising a relay node configured to transmit a first common reference signal (CRS) to a plurality of user agents (UAs) using a first plurality of physical antennas and/or virtual antennas, and an access node configured to transmit a second CRS to the UAs using a second plurality of physical antennas and/or virtual antennas, wherein the first CRS and the second CRS are combined for the same number of first and second physical antennas and/or virtual antennas. Also included is a network comprising a relay node configured to transmit a dedicated reference signal (DRS) to a UA using a first plurality of physical antennas and/or virtual antennas, and an access node configured to transmit a second DRS to the UA using a second plurality of physical antennas and/or virtual antennas, wherein the first DRS and the second DRS are transmitted at about the same time.12-23-2010
20100325506Downlink Transmissions for Type 2 Relay - A method for transmitting data to a user agent. The method includes a relay node receiving information from an access node, the information containing the data that is to be transmitted to the user agent and control information that the access node will use to transmit the data to the user agent. The method further includes the relay node transmitting the data to the user agent at the time the access node transmits the data to the user agent, the relay node using the control information that the access node uses to transmit the data to the user agent.12-23-2010

Chandra S. Bontu, Nepean CA

Patent application numberDescriptionPublished
20090131056Computing an Action Time for Allocation of Resources to a Mobile Station That is Handing Over From a Source to a Target Base Station - To perform a handover of a mobile station from a source base station to a target base station, the source base station determines a delay of a connection between the source base station and the target base station. The source base station computes an action time taking into account the determined delay, the action time specifying a time when the target base station is able to allocate resources to the mobile station for the handover.05-21-2009
20090310540INTERLEAVING DATA OVER FRAMES COMMUNICATED IN A WIRELESS CHANNEL - A mobile communications system includes a radio access network, such as an Enhanced General Packet Radio Service (EGPRS) network, in which mobile stations are able to enter into a discontinuous transmission (DTX) mode. During DTX mode of a first mobile station that is allocated a channel portion (e.g., a time slot of a frame), the radio access network is able to multiplex traffic from another mobile station onto the same channel portion. A mechanism is provided to enable the first mobile station to send a request for re-allocation of the channel portion. The request includes a real-time fast access associated control channel (RTFACCH) resource request message (RTRRM). In response to the RTRRM, the radio access network sends an RTFACCH resource assignment message (RTUAM). An interleaving scheme is also provided for half-rate mobile stations, in which one set of traffic frames are interleaved over plural bursts according to a first algorithm and a second set of traffic frames are interleaved over plural bursts according to a second algorithm.12-17-2009