Patents Assigned to Clear Wireless LLC
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Publication number: 20120281668Abstract: A method of assigning parameter values to transceivers in a wireless communication network. Each of the parameter values assigned determines at least in part how a plurality of subcarriers are organized into a plurality of sub-channels. In particular embodiments, the method assigns the parameter values to the transceivers based on correlations between the sub-channels determined by the parameter values, distances between the transceivers, and loads experienced by the transceivers. After the parameter values are assigned to the transceivers, each of the transceivers is configured to transmit on the sub-channels determined at least in part by the parameter value assigned to the transceiver.Type: ApplicationFiled: July 19, 2012Publication date: November 8, 2012Applicant: Clear Wireless LLCInventors: Esmail Dinan, Jong-Hak Jung, Swati Tiwari, Hemanth Pawar, Krishna Sitaram
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Publication number: 20120269112Abstract: Methods and systems for performing hybrid automatic repeat request (ARQ) in conjunction with broadcast/multicast channels are presented. In particular, an access node may transmit a series of hybrid ARQ subpackets to one or more client nodes using a broadcast/multicast channel. Each of the subpackets may be derived from the same full packet. Upon receiving a subpacket, a client node may attempt to decode the full packet from the subpacket(s) derived from the full packet. If the client node fails to do so, the client node may transmit a negative acknowledgement to the access node. If the access node receives more than a threshold extent of negative acknowledgements, the access node may transmit a subsequent subpacket in the series on the broadcast/multicast channel.Type: ApplicationFiled: July 9, 2012Publication date: October 25, 2012Applicant: CLEAR WIRELESS LLCInventor: Esmail Dinan
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Publication number: 20120236712Abstract: Systems and methods of balancing traffic load in a wireless communication network include calculating a load metric for each of a plurality of users, wherein each of the plurality of users, in operation, are in communication with a first base station using an overloaded carrier associated with the first base station. Such load metric for each user may include a plurality of metric factors related at least to an associated communication link. Based on the calculated load metric, a transfer-deserving user from the plurality of users may be determined. The transfer-deserving user may be associated with a highest value of an associated calculated load metric. For load balancing at the first base station, the associated communication link of the transfer-deserving user may be transferred from the overloaded carrier to a target carrier, wherein the target carrier may be associated with either the first base station or a second base station.Type: ApplicationFiled: March 14, 2011Publication date: September 20, 2012Applicant: CLEAR WIRELESS, LLCInventors: Sungki PARK, Durga Prasad SATAPATHY
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Publication number: 20120239998Abstract: An apparatus and method of configuring a number of retransmissions for an automatic repeat request (ARQ) scheme (e.g., hybrid ARQ) includes configuring one or more first maximum retransmission numbers based on respective one or more first predetermined values and independent of a second maximum retransmission number. The first maximum retransmission numbers may indicate a maximum number of retransmissions related to respective service flows operational with the base station. The second maximum retransmission number may indicate a maximum number of retransmissions related to control messages transmitted in the wireless network, and may be configured based on a second predetermined value. The configuration of the first maximum retransmission numbers may include the maximum retransmissions numbers associated with a specific user in communication with the base station. Further, at least one of the first maximum retransmission numbers of a particular user may be reconfigured to a third predetermined value.Type: ApplicationFiled: March 16, 2011Publication date: September 20, 2012Applicant: CLEAR WIRELESS LLCInventors: Sungki PARK, Chunmei LIU, Masoud OLFAT
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Publication number: 20120213205Abstract: In various embodiments, a system provides multi network connectivity between a broadband, packet-switched wireless Radio Access Network (RAN) and first and second different wireless networks using a broadband transceiver configured to receive and transmit packet-switched data over the RAN. First and second transceivers with respective data interfaces with the broadband transceiver are configured to establish a first and second wireless networks using different communications protocols. A processor and associated memory are operatively coupled together to at least control the broadband transceiver, the first transceiver, and the second transceiver. A communications range of the first and second wireless networks are extended beyond a respective intrinsic data communications capability thereof via the broadband transceiver. The system and method may be implemented to improve in-building wireless coverage, or to provide real-time content to mobile users, e.g.Type: ApplicationFiled: February 17, 2011Publication date: August 23, 2012Applicant: CLEAR WIRELESS, LLCInventor: Mohan TAMMISETTI
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Patent number: 8250423Abstract: Methods and systems for performing hybrid automatic repeat request (ARQ) in conjunction with broadcast/multicast channels are presented. In particular, an access node may transmit a series of hybrid ARQ subpackets to one or more client nodes using a broadcast/multicast channel. Each of the subpackets may be derived from the same full packet. Upon receiving a subpacket, a client node may attempt to decode the full packet from the subpacket(s) derived from the full packet. If the client node fails to do so, the client node may transmit a negative acknowledgement to the access node. If the access node receives more than a threshold extent of negative acknowledgements, the access node may transmit a subsequent subpacket in the series on the broadcast/multicast channel.Type: GrantFiled: March 24, 2009Date of Patent: August 21, 2012Assignee: Clear Wireless LLCInventor: Esmail Dinan
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Publication number: 20120201195Abstract: Exemplary methods and systems may generally be implemented to allow a macro-network base station without access to a GPS reference signal to provide some or all of the functionality for which existing macro-network base stations typically rely on GPS. In a first aspect, an exemplary macro-network base station may determine its location using a location-determination technique that is based upon the angles of arrival of FM radio signals from nearby FM stations. In a second aspect, an exemplary macro-network base station may stabilize its local oscillator by phase-locking its local oscillator to an FM radio signal, and periodically adjusting its local oscillator to account for phase drift of the FM radio signal. And in a third aspect, an exemplary macro-network base station may synchronize its frame-start timing with a nearby base station using a frame-start timing signal that the base station has synchronized to frame transmissions from the nearby base station during a setup routine.Type: ApplicationFiled: February 8, 2011Publication date: August 9, 2012Applicant: CLEAR WIRELESS LLCInventors: Walter Rausch, Durga Satapathy
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Publication number: 20120195241Abstract: In various embodiments, a system and method for providing uplink (UL) power control for a wireless mobile station (MS) includes, after transmission of an unanswered bandwidth request by the MS, incrementally boosting an UL transmit power of one or more subsequent bandwidth requests by the MS to a boosted UL power level at which UL bandwidth is allocated to the MS by the BS; selectively reporting the boosted UL power level to the BS immediately after the UL transmit power has been boosted; and selectively controlling the boosted UL power level by the BS responsive to the boosted UL power level reported to the BS. A MS is configured to carry out the UL power control method and a BS is configured to generate MS UL power control commands based, at least in part, upon the UL power level reported to the BS.Type: ApplicationFiled: January 28, 2011Publication date: August 2, 2012Applicant: CLEAR WIRELESS, LLCInventors: Chunmei LIU, Dhaval Dipak MEHTA, Sungki PARK, Masoud OLFAT, Durga Prasad SATAPATHY
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Publication number: 20120176902Abstract: Both a system and method are provided for dynamically balancing a maximum number of active remote device users that can be serviced between first and second base stations transmitting data frames in a radio communication system when the carriers of the first and second base stations operate at different radio frequency bandwidths X and Y respectively, and Y is substantially larger than X. The system includes a system control circuit that controls the number of subchannels in the uplink control channel region of the data frames transmitted by the first base station, and a traffic monitoring circuit that monitors both an uplink load and a number of active wireless device users within broadcast coverage of said first base station. The system control circuit dynamically increases the radio resources in the uplink control channel region of the frames transmitted by the first base station.Type: ApplicationFiled: January 6, 2011Publication date: July 12, 2012Applicant: CLEAR WIRELESS LLCInventors: Esmael Dinan, Jong-Hak Jung, Swati Tiwari, Hemanth Pawar, Krishna Sitaram
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Patent number: 8219079Abstract: A radio communication system has a primary communication pathway and a secondary communication pathway. When the primary communication pathway is implemented by a microwave radio link, it is susceptible to poor performance under adverse weather conditions. A system evaluates the available data bandwidth under adverse conditions and provides control instructions to a data switch to reduce the data flow to the primary communication pathway. In addition, the data switch may receive priority control data to prioritize data queues to the primary communication pathway and the secondary communication pathway in accordance with the received instructions.Type: GrantFiled: July 28, 2009Date of Patent: July 10, 2012Assignee: Clear Wireless LLCInventor: Mohan Tammisetti
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Publication number: 20120163173Abstract: In various embodiments, a method, computer-readable storage medium, and apparatus for scheduling prioritized best effort (BE) service flows through a wireless network base station includes a controller coupled to a memory. If any one of a plurality of BE service flows are congested, a minimum reserved traffic rate (MRTR) algorithm is used by the controller to ensure that at least a highest priority BE service flow is maintained at least at an associated MRTR. If none of the plurality of BE service flows are congested, a maximum sustained traffic rate (MSTR) algorithm is used by the controller to enable the highest priority BE service flow to be set to at least at an associated MSTR before lower priority service flows are increased. If none of the plurality of BE service flows are congested and each service flow is at their associated MSTR, the controller is configured to distribute any excess bandwidth to each service flow in accordance with an initial set of priority BE traffic flow ratios.Type: ApplicationFiled: March 1, 2012Publication date: June 28, 2012Applicant: CLEAR WIRELESS, LLCInventors: Durga Prasad SATAPATHY, Sungki PARK
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Publication number: 20120134345Abstract: Systems and methods for supporting E911 for VoIP mobile communications are provided. A mobile station formats a call setup message by including particular information in a header portion of the call setup message that is used by the wireless network to select an appropriate PSAP and route the call to the appropriate PSAP.Type: ApplicationFiled: November 29, 2010Publication date: May 31, 2012Applicant: Clear Wireless LLCInventors: Arundhati Tamhankar, Michael Brothers, Stevan Klesper, Curt Jutzi, Kurt Christian Schmidt, Masud Kibria, Cathy Massey, Erin Boone
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Publication number: 20120082070Abstract: Systems and methods for detecting and mitigating interference between from a first wireless time division duplex (TDD) communications device and a second wireless TDD communications device includes processing quality-indicator reports received from the first TDD device to determine if reception at the first TDD device has experienced interference from the second TDD device. Such interference at the first TDD device may indicate that the first TDD device may also cause interference to reception at the second TDD device. Accordingly, to mitigate the possible interference from the first TDD device, an uplink configuration of the first TDD base station may be adjusted. The adjustment of the uplink configuration may include configuring reception of data packets at the first TDD base station from the first TDD device in accordance with an interference-free time interval, an unprotected time interval, or a specific portion of an associated frequency band.Type: ApplicationFiled: June 14, 2011Publication date: April 5, 2012Applicant: CLEAR WIRELESS, LLCInventors: Michael HART, Yang XU, Peter GELBMAN, Herkole SAVA
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Publication number: 20120082038Abstract: Systems and methods for detecting and mitigating interference between from a wireless time division duplex (TDD) communications device and a wireless frequency division duplex (FDD) communications device includes processing quality-indicator reports received from the FDD device to determine if the FDD device has experienced interference from the TDD device. Such interference may be mitigated by adjusting a downlink configuration of the FDD base station in communication with the FDD device. To detect and mitigate interference from an FDD device to a TDD device, it is determined if a monitored value of an operational parameter of the FDD device is within a fixed range of a maximum value of the operational parameter, and if so, a specific time interval or frequency of the FDD device is assigned for communication purposes. Similar interference detection and mitigation techniques may also be used for interference scenarios between two TDD systems including TDD devices.Type: ApplicationFiled: October 1, 2010Publication date: April 5, 2012Applicant: CLEAR WIRELESS, LLCInventors: Yang XU, Michael HART, Peter GELBMAN, Herkole SAVA
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Publication number: 20120051321Abstract: A method and mobile station provides seamless IP session continuity between different RAN's (Radio Active Networks) that utilize different wireless access technologies. The mobile station includes internal software such that (1) when the mobile station is in a non-WiFi network, it establishes a mobile Internet protocol (MIP) tunnel between a home agent (HA) and the mobile station via a foreign agent (FA) of the network by either proxy mobile internet protocol (PMIP) with care of address (CoA) or client mobile internet protocol (CMIP) with CoA, and (2) when the mobile station detects that it is in a WiFi network, it establishes a MIP tunnel between the HA and the mobile station by either client mobile Internet protocol (PMIP) with co-located care of address (CCoA), or Internet protocol security (IPSec).Type: ApplicationFiled: October 19, 2010Publication date: March 1, 2012Applicant: CLEAR WIRELESS LLCInventors: Bhupal DE, Srinivasa Rao MANTRALA
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Publication number: 20120020202Abstract: A method of operating a communication system comprises performing a plurality of ranging processes to establish a network connection over a wireless link. A time interval is established for a wireless device timer at the wireless device upon establishing the network connection and a time interval is established for an access node timer at the access node upon establishing the network connection. The method also comprises establishing a communication session over the wireless link and network connection. When a repeat request acknowledgement message is received during the communication session, the time interval for the wireless device timer and the time interval for the access node timer is restarted.Type: ApplicationFiled: July 23, 2010Publication date: January 26, 2012Applicant: CLEAR WIRELESS LLCInventors: Chunmei Liu, Masoud Olfat
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Publication number: 20120014489Abstract: A method of operating a communication system comprises sending a frame by an access node to a wireless device where the frame comprises a packet. A counter is initialized and a timer for each frame is initiated. The method continues with the access node determining if a response associated with the packet is received before the expiration of the timer. If the response is received prior to the expiration of the timer, the counter and the timer are reset. If a response is not received prior to the expiration of the timer, the counter is incremented. Upon the counter meeting a criteria of a certain quantity of lost packets, the access node performs a synchronization process.Type: ApplicationFiled: July 13, 2010Publication date: January 19, 2012Applicant: CLEAR WIRELESS LLCInventors: Chunmei LIU, Masoud Olfat, Nagi Mansour
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Publication number: 20120014488Abstract: A method of operating a communication system comprises establishing a wireless device release time interval for a wireless device release timer at an access node upon establishing an initial network connection between a wireless device and the access node. An initial synchronization process is performed between the wireless device and the access node. The method continues with the access node sending an unsolicited synchronization message to the wireless device and starting the wireless device release timer. A second synchronization process is performed and upon successful completion of the second synchronization process, a success status synchronization response message is sent by the access node to the wireless device. The access node receives a synchronization confirmation message from the wireless device that comprises an identifier corresponding to the identity of the wireless device and upon receiving the confirmation message, the access node cancels the wireless device release timer.Type: ApplicationFiled: July 13, 2010Publication date: January 19, 2012Applicant: CLEAR WIRELESS LLCInventors: Chunmei LIU, Masoud Olfat
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Publication number: 20110317553Abstract: A method of assigning parameter values to transceivers in a wireless communication network. Each of the parameter values assigned determines at least in part how a plurality of subcarriers are organized into a plurality of sub-channels. In particular embodiments, the method assigns the parameter values to the transceivers based on correlations between the sub-channels determined by the parameter values, distances between the transceivers, and loads experienced by the transceivers. After the parameter values are assigned to the transceivers, each of the transceivers is configured to transmit on the sub-channels determined at least in part by the parameter value assigned to the transceiver.Type: ApplicationFiled: June 23, 2010Publication date: December 29, 2011Applicant: CLEAR WIRELESS LLCInventors: Esmail Dinan, Jong-Hak Jung, Swati Tiwari, Hemanth Pawar, Krishna Sitaram
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Publication number: 20110312347Abstract: A system to control paging cycles in a wireless network assigns mobile stations to one of a plurality of paging groups based on the paging cycle requirements of the individual mobile stations. In addition, the mobile stations in a particular paging group are further subdivided into subgroups that may be substantially equal in size. At any particular paging cycle, only one subgroup of a particular paging group is included in the paging process thus reducing the overall number of mobile stations that need to be paged in any particular paging cycle.Type: ApplicationFiled: June 21, 2010Publication date: December 22, 2011Applicant: CLEAR WIRELESS LLCInventor: Esmail Dinan