Control Channel/voice Channel Conversion Patents (Class 455/511)
  • Patent number: 8335530
    Abstract: A mobile device is engaged in a connected data service via a wireless network. The connected data service utilizes a radio traffic channel established between the mobile device and the wireless network and a data session for communicating data. While engaged in the service, the mobile device receives via a user interface a voice call request for initiating a voice call. In response to the request, the mobile device permits the initiation of the voice call. Specifically, the mobile device causes the radio traffic channel for the connected data service to be torn down without terminating the data session. The mobile device also causes the voice call to be established and maintained over a new radio traffic channel via the wireless network while the data session for the data service is maintained.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 18, 2012
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Muhammad Khaledul Islam
  • Patent number: 8331342
    Abstract: A base station for use in a wireless network, wherein the base station transmits in a downlink to a plurality of subscriber stations using a plurality of antennas according to a multiple input, multiple-output (MIMO) protocol. During a first downlink subframe, the base station operates in single-user MIMO mode in which the base station transmits a first data subpacket to a first subscriber station using a first antenna and transmits a second data subpacket to the first subscriber station using a second antenna. During a second downlink subframe following the first downlink subframe, the base station operates in multi-user MIMO mode in which the base station transmits a third data subpacket to the first subscriber station using the first antenna and transmits a fourth data subpacket to a second subscriber station using the second antenna.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: December 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farooq Khan, Cornelius Van Rensburg
  • Patent number: 8315658
    Abstract: A method of allocating radio resources in a wireless communication system is disclosed. A method of allocating radio resources from a network of a wireless communication system in accordance with a plurality of scheduling modes comprises transmitting first scheduling information to a user equipment to allocate radio resources to the user equipment in accordance with a first scheduling mode, the first scheduling information including a first user equipment identifier, and transmitting second scheduling information to the user equipment to allocate radio resources to the user equipment in accordance with a second scheduling mode, the second scheduling information including a second user equipment identifier.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: November 20, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sung Duck Chun, Young Dae Lee, Sung Jun Park, Seung June Yi
  • Patent number: 8311565
    Abstract: A radio communication system whereby one or a consecutive plurality of sub-carrier frequency intervals form sub-carrier groups each of which is assigned to a different user. The radio communication system includes a radio communication apparatus and a terminal configured to receive a control signal and a data signal from the radio communication apparatus. The terminal receives the control signal and the data signal according to a notified control signal position.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: November 13, 2012
    Assignee: Fujitsu Limited
    Inventor: Takayoshi Ode
  • Patent number: 8295868
    Abstract: Systems and methods are disclosed that relate to a wireless communication system. Theses systems and methods include providing information from a base station to a mobile device than enables the mobile device to use at least one DCI format. In some embodiments, this information is provided by receiving data over a wireless communication channel. The transmitted data comprises identification information that identifies the format of the transmitted data being transmitted. These systems and methods may also include identifying the format of the transmitted data and processing the transmitted data using the identified format of the transmitted data.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: October 23, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jianzhong Zhang, Farooq Khan
  • Patent number: 8249025
    Abstract: Methods and systems are provided for using a PDSN in a wireless communication network that includes multiple IP addresses and multiple corresponding physical interfaces. Through the use of multiple IP addresses and interfaces, the throughput of the PDSN may be substantially increased. Additionally, the multiple IP addresses and interfaces may be used to provide redundancy in order to protect against software or hardware failures. According to the methods and systems of the invention, moreover, the risk of internal hard handoffs resulting from the use of a PDSN having multiple IP addresses and interfaces is eliminated or at least substantially reduced.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: August 21, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew H. Harper, Janakiraman Senthilnathan
  • Patent number: 8229365
    Abstract: A method for use in a cellular system comprising a plurality of base stations with corresponding cells, in which system the communication between users in a cell and the base station is divided into an up link period and a down link period, the method comprising letting a controlling node instruct the base stations regarding: a first point in time when the base station should start transmitting a control signal; a second point in time when the base station should start to listen for control signals from other base stations and measure their time of arrival and signal strength; a third point in time when the base station should cease listening for control signal; and a fourth point in time when the base station should transmit the measurements results to a receiving node in the system.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: July 24, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Erik Westerberg, David Astely, Hannes Ekstrom, Per Skillermark, Tobias Tynderfeldt
  • Patent number: 8219119
    Abstract: In order to avoid system malfunction, the present invention provides a method for improving Discontinuous Downlink Reception (DRX) operation for a user equipment (UE) in a wireless communications system. The method includes stopping a timer when the UE allocated with a dedicated HS-DSCH Radio Network Temporary Identifier (H-RNTI) moves from a CELL_PCH state to a CELL_FACH state due to an uplink data transmission, wherein the timer is started when the UE enters the CELL_PCH state and is utilized for determining a time length for using a first DRX cycle.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: July 10, 2012
    Assignee: Innovative Sonic Limited
    Inventor: Richard Lee-Chee Kuo
  • Patent number: 8213370
    Abstract: Optimizing call setup procedures by determining whether a trigger for a random access procedure is independent for a restricted number of terminals, and performing a preamble transmission with or without a delay based upon the determining.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: July 3, 2012
    Assignee: LG Electronics Inc.
    Inventor: Patrick Fischer
  • Publication number: 20120135772
    Abstract: In a cognitive radio communication device, before a communication link for the cognitive radio communication is established, a control channel which is a common channel which can be used by a plurality of cognitive radio communication devices is detected. By exchanging sensing information and sensing control information among the plurality of radio communication devices using the detected common channel, the information is shared. The plurality of cognitive radio communication devices share the sensing information and the sensing control information, and use the information for determining a channel used for spectrum monitoring and data communication, and the like.
    Type: Application
    Filed: July 12, 2010
    Publication date: May 31, 2012
    Inventors: Yohannes Alemseged Demessie, Ha Nguyen Tran, Chen Sun, Hiroshi Harada
  • Patent number: 8184577
    Abstract: A method of setting a transport block size for a user equipment in a wireless communications system includes providing a combination table for being looked up to generate a parameter value according to a combination of a modulation scheme and a number of channelization codes indicated by a base station, so as to decide a transport block size index, and configuring a first parameter value corresponding to a least resource usage in the combination table as a first transport block size index before deciding the transport block size index. The first transport block size index is a transport block size index corresponding to a smallest transport block size in a transport block size table, and the combination table and the transport block size table are used when quadrature phase shift keying (QPSK) modulation, 16 quadrature amplitude modulation (16QAM) or 64 quadrature amplitude modulation (64QAM) is activated.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: May 22, 2012
    Assignee: Innovative Sonic Limited
    Inventor: Li-Chih Tseng
  • Patent number: 8135425
    Abstract: A system or method for communicating data over a voice channel between a transmitter and a receiver. In one embodiment, the system includes: (1) a silence detector, coupled to the transmitter, that identifies a pause in voice traffic that is to be transmitted over the voice channel and generates an interjection signal during the pause and (2) a data injector, coupled to the silence detector, that receives the interjection signal and responds by causing the transmitter to transmit data to the receiver over the voice channel.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: March 13, 2012
    Assignee: Agere Systems Inc.
    Inventors: Somnath Banik, James A. Johanson
  • Publication number: 20120052898
    Abstract: A base station controls random access that includes non-contention random access where the base station allocates to each terminal, a dedicated code as a preamble. The base station includes a wireless communications interface; and a processor configured to measure non-contention random access load received by the wireless communications interface; to determine a dedicated code count, based on the non-contention random access load measured; and to control the non-contention random access using the dedicated code count determined.
    Type: Application
    Filed: May 31, 2011
    Publication date: March 1, 2012
    Applicant: FUJITSU LIMITED
    Inventor: Stephan HEGGE
  • Patent number: 8099118
    Abstract: A voice call request for a voice call involving the mobile device is received in a wireless network while the mobile device is engaged in a connected data communication service via the wireless network. The service utilizes a radio traffic channel between the mobile device and the wireless network and a data session for communication of data. In response to the receiving of the voice call request, the wireless network causes the radio traffic channel for the service to be torn down without terminating the data session. The wireless network also causes a voice call involving the mobile device to be established and maintained over a new radio traffic channel via the wireless network while the data session for the service is maintained. Subsequently, the wireless network identifies an indication that the voice call involving the mobile device has ended and, in response, resumes the communication of the data in the data session over a radio traffic channel.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: January 17, 2012
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Muhammad Khaledul Islam
  • Patent number: 8099099
    Abstract: Methods and apparatus related to assignment in a wireless communications system are described. A mobile is assigned an identifier and a mask value, e.g., as part of a state transition message. The mobile uses the assigned identifier and/or the assigned mask value in determining whether assignments included in assignment messages, e.g., traffic channel assignment messages, are directed to the wireless terminal. Predetermined associations between assignment slots, assigned segments, and/or mask values are utilized to limit control signaling overhead. Different groups of segments are available for assignment to different wireless terminals as a function of mask values. Different types of assignment messages use different amounts of information bits to convey the assignment. Some types of assignments use a wireless terminal identifier, while other types of assignments use a wireless terminal identifier and a mask identifier. The mask identifier, e.g.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: January 17, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Vladimir Parizhisky, Junyi Li, Sathyadev Venkata Uppala
  • Patent number: 8090410
    Abstract: Voice recording used for authentication is transmitted to the voice portal of the service provider not by way of the voice channel, but rather by way of a data channel. In this connection, the voice recording is sent not synchronous to speech and subject to loss, but rather asynchronously and loss-free, in an extra data package (for example advantageously as a Multimedia Messaging Service (MMS) data package). For this purpose, the resources that are available as standard items in most mobile phone terminals, such as digital voice recording and MMS transmission, can be utilized. Preferably, the subscriber's identification module or SIM card in the mobile phone terminal can store and implement the corresponding control program.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: January 3, 2012
    Assignee: VoiceCash IP GmbH
    Inventor: Hermann Geupel
  • Patent number: 8077731
    Abstract: A method and system are provided for enabling packet-based tandem free operation C(FO). In one example, the method includes monitoring packets sent between network elements to identify a TFO request message and a TFO acknowledgement message. A substitute TFO acknowledgement message is sent from an intermediate network element if no TFO acknowledgement message is identified, and both TFO and non-TFO call legs may be established.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: December 13, 2011
    Assignee: Alcatel Lucent
    Inventors: Brian Henry Foskett, Charles Marvin Berteau
  • Patent number: 8072919
    Abstract: Methods and systems for implementing trunking techniques in CDMA systems for handling group calls and push-to-talk services.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: December 6, 2011
    Assignee: ZTE Corporation
    Inventors: James Jiang, Yonggang Fang, Mary Chion, Rajesh Bhalla
  • Patent number: 8064551
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for determining burst transmission signals. A receiver receives radio frequency data from a data source through a network. The receiver converts the radio frequency data to digital data. The receiver converts the digital data to baseband data. The receiver generates a correlation magnitude from the baseband data based on one or more correlation templates. The receiver determines one or more statistics based on the correlation magnitude and stored statistics. The receiver determines the presence of a burst transmission signal based on a comparison of a threshold value computed as a function of the statistics and the correlation magnitude. If the correlation magnitude exceeds the computed threshold, the receiver demodulates the burst transmission signal to packet data and transmits the packet data to a server.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: November 22, 2011
    Assignee: Comtech Mobile Datacom Corporation
    Inventors: Christopher C. Skiscim, Richard Candell, Jr., Ralph Eugene Crenshaw
  • Patent number: 8064941
    Abstract: In a wireless communication system, an apparatus and method for managing an uplink communication between a network and a plurality of terminals is achieved by transmitting a response condition parameter from the network to the plurality of terminals subscribing to a multicast service. The parameter is associated with controlling the uplink communication of the plurality of terminals. The terminal then applies the response control parameter to a predetermined test and responds to the network if the terminal determines that it is qualified to respond to the network in response to a result of the predetermined test. The network evaluates whether the parameter needs to be transmitted to the plurality of terminals and whether the parameter needs to be updated based on at least part of responses received by the network.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 22, 2011
    Assignee: LG Electronics Inc.
    Inventors: Seung June Yi, Young Dae Lee, Sung Duck Chun
  • Patent number: 8046016
    Abstract: A method for indicating availability of outbound RF resources (ORFRs) of peer base stations is provided that uses peer busy indicator (PBI) messages transmitted from one peer base station to other peer base stations.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: October 25, 2011
    Assignee: Motorola Solutions, Inc.
    Inventors: Robert D. LoGalbo, Bradley M. Hiben
  • Patent number: 8031671
    Abstract: Methods and systems are provided for using a PDSN in a wireless communication network that includes multiple IP addresses and multiple corresponding physical interfaces. Through the use of multiple IP addresses and interfaces, the throughput of the PDSN may be substantially increased. Additionally, the multiple IP addresses and interfaces may be used to provide redundancy in order to protect against software or hardware failures. According to the methods and systems of the invention, moreover, the risk of internal hard handoffs resulting from the use of a PDSN having multiple IP addresses and interfaces is eliminated or at least substantially reduced.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: October 4, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew H. Harper, Janakiraman Senthilnathan
  • Patent number: 8004975
    Abstract: A method, apparatus and computer program product for providing adjacent channel interference avoidance is presented. A first set of channels and a second set of channels of a Radio Frequency (RF) spectrum used by the wireless network are defined, the first set having a plurality of channels and the second set having a plurality of channels, and wherein the first set and the second set have mutually non-adjacent channels. A channel in the first set is designated as the control channel, the control channel being non-adjacent to channels in the second set, and used by all nodes of the wireless network. The channels in the first spectrum are utilized for the control channel and for data channels for unicast transmissions between single-radio nodes. The channels of the second set are utilized as data channels for unicast and multicast transmissions by multi-radio nodes.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: August 23, 2011
    Assignee: Avaya Inc.
    Inventor: Mathilde Benveniste
  • Patent number: 8000734
    Abstract: A method and system is disclosed wherein timeslots designated in a wireless communication system as Common Physical Channel (CPCH) timeslots may be reused for user traffic. A CPCH timeslot used in a first cell may be reused by a second cell, assuming the first and second cells transmit control information in different CPCH timeslots, for user traffic. The second cell is permitted to reuse the timeslot in which the first cell is transmitting control information so long as the second cell's reuse of that timeslot does not degrade reception of control information in the first cell.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: August 16, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Vincent Roy, Paul Marinier
  • Patent number: 7983703
    Abstract: A subframe structure for a wireless community uses a master common subframe and second master common subframe method to give BSs different priorities to serve overlapping areas in common subframes. The subframe structure and corresponding method can increase overlapping cells' capacity and reduce interference.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: July 19, 2011
    Assignee: STMicroelectronics, Inc.
    Inventor: Liwen Chu
  • Patent number: 7974621
    Abstract: A method and apparatus for transitioning between radio link protocols in a packet-based real-time media communication system. A wireless communication device such as a cell phone will operate under one radio link protocol (such as IS-856, also known as 1xEV-DO) to engage in packet-based signaling for setup of a packet-based real-time media session such as a push-to-talk session. Once the session is set up, the wireless communication device will then automatically transition to operate under a different radio link protocol (such as IS-2000, also known as 1xRTT), and will engage in packet-based real-time media communication in the session over that different radio link protocol. Preferably, the radio link protocol used for session setup signaling will provide for reduced setup latency, while the radio link protocol used for bearer communication in the session will provide for reduced jitter and improved real-time media communication.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: July 5, 2011
    Assignee: Sprint Spectrum L.P.
    Inventors: Tong Zhou, David Mohan
  • Patent number: 7970423
    Abstract: The present invention relates to a method and system for linking a service context to a terminal connection in a network controlling device of a data network, wherein a service indication is forwarded via the terminal connection to the data network, and an association is established between the service context and the terminal connection based on a network response to the service indication. The desired link between the terminal connection and the service context can thus be established at the network controlling device based on the forwarded service indication, e.g. cause value for establishing the terminal connection. Thereby, network resources can be optimized by releasing non-valid terminal connections.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: June 28, 2011
    Assignee: Nokia Corporation
    Inventors: Sinikka Sarkkinen, Tuomas Hakuli
  • Patent number: 7957705
    Abstract: A base station (BS) and method to reduce RF interference by a carrier. The BS includes a first power amplifier (PA) that emits a first carrier, a second PA that emits a second carrier, a processor, and data storage containing program instructions. The BS is operable in a first state in which the first PA is on and the second PA is off and a second state in which the first and second PAs are on. Execution of the instructions while the BS operates in the first state cause the processor to determine that the BS receives a mobile station communication and cause the BS to operate in the second state, and while the BS operates in the second state, cause the processor to determine that no mobile stations are registered as being authorized to be served by the BS and cause the BS to operate in the first state.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: June 7, 2011
    Assignee: Sprint Spectrum L.P.
    Inventor: Daesik Oh
  • Patent number: 7957755
    Abstract: A mobile station for establishing a signaling control channel and a shared data channel between a radio access network apparatus and the mobile station to perform communication includes discontinuous reception means configured to perform discontinuous reception of broadcast information using the signaling control channel, shared data channel reception determination means configured to determine whether to receive the shared data channel based on an item of broadcast information and information indicating presence or absence of change of content corresponding to the item of the broadcast information that are transmitted by the signaling control channel, and shared data channel reception means configured to receive the shared data channel according to the determination.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: June 7, 2011
    Assignee: NTT Docomo, Inc.
    Inventors: Minami Ishii, Sadayuki Abeta, Takehiro Nakamura
  • Publication number: 20110124362
    Abstract: A mobile terminal device able to automatically set suitable field break positions in accordance with the situation, able to realize a skip operation and back skip operation by specific operations, able to efficiently utilize a readout function, and able to improve convenience to a user is provided. It has an operation unit 19 for instructing a readout function, a memory 12 storing text, a text-to-speech unit 20 for converting text data stored in the memory 12 to speech data at the time of readout, an audio output unit 21 for outputting the speech data, and a control unit 26 for recognizing predetermined breaks from the text to be read out when outputting the speech data at the audio output unit 21 and performing control so as to output the words from either a break position before or after the readout target text at the point of time of the input of instruction as the speech data by the audio output unit when there is a predetermined instruction by the operation unit 19.
    Type: Application
    Filed: June 29, 2005
    Publication date: May 26, 2011
    Applicant: KYOCERA CORPORATION
    Inventors: Tetsushi Wakasa, Takashi Kobiki, Kiyofumi Miyake
  • Patent number: 7941168
    Abstract: A mobile communication system is configured to control a transmission rate of user data to be transmitted from a mobile station to a radio base station via an uplink transmission rate allocation shared physical control channel, and to transmit user data from the radio base station to the mobile station via a downlink shared physical data channel. Transmission frame timing of the uplink transmission rate allocation shared physical control channel is synchronized with transmission frame timing of the downlink shared physical data channel.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: May 10, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Anil Umesh, Masafumi Usuda, Takehiro Nakamura
  • Patent number: 7933620
    Abstract: A method, system, and device are provided for transmit channel request messaging in wireless half-duplex voice communication systems. A new transmit channel request message (TCRM) is provided and sent over a logical control channel from a receiving device capable of walkie-talkie-like functionality, during an active half-duplex session, to a transmitting device capable of walkie-talkie-like functionality, indicating that the transmit channel is requested. In some embodiments, the invention provides for the display of information on the transmitting device user interface (UI) indicating, during an active session, that another user wishes to talk. The TCRM includes an indication that another device has requested the transmit channel and preferably includes an identification of the device which sent the transmit channel request message. In some embodiments, a qualifier flag in the TCRM is used to specify what, if any, extended functionality in respect of the TCRM is to be performed.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: April 26, 2011
    Assignee: Research In Motion Limited
    Inventors: Padakandla Krishna Rao, Sing Janus Yau
  • Patent number: 7924804
    Abstract: A method is described for scheduling a plurality of data flows to a plurality of shared channels in a wireless communication system transmitting data packets in time intervals of frames and applying adaptive modulation and coding. The method comprises the steps of determining virtual link adaptation parameters for at least a part of all combinations of data flow and shared channel, based on state information from the respective shared channel, and based on Quality of Service requirements for the respective data flow; calculating potential data rates for said combinations of data flow and shared channel, based on said virtual link adaptation parameters; calculating priority values for said combinations of data flow and shared channel, based on said potential data rates; and selecting, based on the calculated priority values, for at least a part of the shared channels, a data flow for which data is to be transmitted on each of these shared channel during the time interval of one frame.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: April 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Christian Wengerter, Jan Ohlhorst
  • Patent number: 7873826
    Abstract: A method and system to rout a Voice over Internet Protocol (VoIP) call based on a service class of a subscriber enables efficient utilization of bandwidth by providing service corresponding to the subscriber service class, while enabling use of a Virtual Private Network (VPN) which provides security to a VoIP service.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: January 18, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soung-Su Cho, Dae-Hyun Lee
  • Publication number: 20100317390
    Abstract: It is characterized by including a storage section (214) in which location information of a base station (30) that performs wireless communication with a wireless terminal (40) and base station identification information uniquely assigned to each base station are registered in association with each other, a receiving section for receiving signal strength information in which a signal strength of a signal received by the wireless terminal from each base station or information obtained from the signal strength and the base station identification information of the base station that transmitted the signal are associated with each other, a registration judging section (222) judging, by referring to the base station identification information registered in the storage section, whether or not the base station identification information included in the signal strength information received by the receiving section is registered in the storage section in association with the location information, and a registering sec
    Type: Application
    Filed: October 9, 2007
    Publication date: December 16, 2010
    Applicant: DSM IP ASSETS B.V.
    Inventor: Junichi Rekimoto
  • Patent number: 7809387
    Abstract: Methods and apparatus for prioritizing voice call requests during data communication sessions involving a mobile communication device are disclosed. In one illustrative example, an end user invokes a voice call request though a user interface of the mobile device. If this request is made while the mobile device is engaged in a connected data communication service, the mobile device immediately forces the connected data service into a dormant state. In particular, a release order is transmitted to tear down a traffic channel of the connected data service so that the voice call request can be processed. Subsequently, a voice call with the mobile device is established using a new traffic channel. When the voice call is completed, data communications will resume if needed. Advantageously, the mobile device prioritizes voice calls over data communication sessions which may be deemed less time-critical.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: October 5, 2010
    Assignee: Research In Motion Limited
    Inventors: Shahid R. Chaudry, M. Khaledul Islam
  • Patent number: 7792499
    Abstract: The present invention provides a wireless communications system comprising a first radio transceiver configured to communicate on a first radio channel, a second radio transceiver configured to communicate on a second radio channel, a first base transceiver unit (BTU) configured to communicate with the first radio transceiver, a second BTU configured to communicate with the second radio transceiver, and a client transceiver unit (CTU) configured to communicate with both the first BTU and the second BTU. The CTU is thereby configured to communicate on the first radio channel via the first radio transceiver and the first BTU. The CTU is also configured to communicate on the second radio channel via the second radio transceiver and the second BTU. The CTU comprises at least one speaker for enabling a user to listen to communications on the first and second radio channels concurrently.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: September 7, 2010
    Assignee: St. Electronics (Info-Comm Systems) Pte. Ltd.
    Inventors: Ming Kang Chen, Chin Kang Lee, Yew Kwee Lew, Shih Jih Yao, Siew Kheen Lee
  • Patent number: 7787826
    Abstract: Systems and methodologies are described that facilitate transitioning between states associated with a wireless terminal. The wireless terminal may transition to and/or from a split-tone on state, which may enable increasing overall user capacity related to a base station or sector. Further, such state transitions may reduce power consumption associated with the wireless terminal.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: August 31, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Sathyadev Venkata Uppala, Murari Srinivasan, Pablo Anigstein, Rakesh Dugad, Rajiv Laroia, Junyi Li
  • Patent number: 7751846
    Abstract: The present invention relates to a mobile station apparatus and a transmission power control method for the same apparatus, capable of improving the decision accuracy in a mobile station with respect to a TPC command from a base station to the mobile station and of maintaining the optimum transmission power. In the mobile station which is made to control the transmission power to the base station on the basis of a TPC command received from the base station, a plurality of TPC commands received from a plurality of base stations are weighting-combined so as to control the transmission power to the base stations on the basis of a result of the weighting combination.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: July 6, 2010
    Assignee: Fujitsu Limited
    Inventor: Masaaki Suzuki
  • Patent number: 7702345
    Abstract: An integrated circuit (IC) includes a baseband processing module, a disk driver interface, an RF section, and an interface module. The disk drive interface is coupled to the baseband processing module and to an off-IC disk drive, wherein the disk driver interface facilitates transfers between the baseband processing module and the off-IC disk drive.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: April 20, 2010
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20100056193
    Abstract: A method for indicating availability of outbound RF resources (ORFRs) of peer base stations is provided that uses peer busy indicator (PBI) messages transmitted from one peer base station to other peer base stations.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 4, 2010
    Applicant: Motorola, Inc.
    Inventors: Robert D. LoGalbo, Bradley M. Hiben
  • Patent number: 7664068
    Abstract: Certain exemplary embodiments provide a method for providing multiple access to a communication channel, the method comprising: sending a reservation request of a first type into a first selected minislot of a selected frame of an uplink channel when information of a first type is to be sent, the uplink channel having a plurality of frames, each frame having a first selectable number of minislots and a second selectable number of slots, the reservation request of the first type requesting an assignment of at least one slot for transmitting information of the first type in at least one frame that is subsequent to the selected frame.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: February 16, 2010
    Assignee: AT&T Corp.
    Inventor: Jin-Meng Ho
  • Patent number: 7640019
    Abstract: A communications system dynamically reconfigurable for RF bandwidth and modulation protocols is disclosed. A server comprises one or more radio head interface modules and a call processing software module adapted to communicate with each other. The call processing software is adapted to perform modulation and demodulation of voice and data streams using one or more air interface protocols. A radio head unit coupled to the radio head interface module communicates with one or more subscriber units. The radio head interface module receives either air interface protocol configuration information, or RF signal bandwidth allocation information, from the call processing software module for one or more communication channels, the information providing a timing trigger and a protocol or bandwidth for one or more communication channels. The radio head interface module reconfigures itself for one or more communications channels, based on the change instructed by the call processing software.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: December 29, 2009
    Assignee: ADC Telecommunications, Inc.
    Inventors: David J. Conyers, Jeffrey J. Cannon, Larry G. Fischer, Douglas D. Weaver, Santosh K. Sonbarse, William J. Mitchell, Michael J. Hermel, Donald R. Bauman, Jerry E. Toms, Philip M. Wala
  • Patent number: 7623494
    Abstract: Embodiments of adjustment of a clear channel assessment threshold are presented herein.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: November 24, 2009
    Assignee: Intel Corporation
    Inventors: Jing Zhu, Boris Ginzburg
  • Patent number: 7623880
    Abstract: Method and apparatus for enhanced selection of a channel for use in redistributing mobile stations to various frequencies in a communication system. In one aspect, the method appends a redistribution alteration record to a common channel redistribution message. The redistribution alteration record alters the sequencing of the mobile station when selecting a channel in the common channel redistribution message.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: November 24, 2009
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Jun Wang
  • Patent number: 7610059
    Abstract: A method and system is disclosed wherein timeslots designated in a wireless communication system as Common Physical Channel (CPCH) timeslots may be reused for user traffic. A CPCH timeslot used in a first cell may be reused by a second cell, assuming the first and second cells transmit control information in different CPCH timeslots, for user traffic. The second cell is permitted to reuse the timeslot in which the first cell is transmitting control information so long as the second cell's reuse of that timeslot does not degrade reception of control information in the first cell.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: October 27, 2009
    Assignee: InterDigital Technology Corporation
    Inventors: Vincent Roy, Paul Marinier
  • Patent number: 7565140
    Abstract: Embodiments of the present invention provide a method, apparatus and system of processing received wireless signals. The apparatus, according to some demonstrative embodiments of the invention, may include a network interface configured to convert the received wireless signals into output signals to be provided to a host processor, the network interface having a first mode of operation, in which the output signals have base-band values corresponding to base-band values of the received signals, and a second mode of operation, in which the output signals have values representing a data frame of the received signals. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: July 21, 2009
    Assignee: Intel Corporation
    Inventors: Shmuel Levy, Shmuel Ravid, Gal Basson
  • Patent number: 7539501
    Abstract: A method for receiving a frame in a high data throughput wireless local area network begins by receiving a preamble of the frame via a channel in accordance with a default receiver filter mask. The processing continues by validating the preamble. The processing continues by, when the preamble is validated, interpreting the preamble to determine a high data throughput channel configuration. The processing continues by reconfiguring the default receiver filter mask in accordance with the high data throughput channel configuration to produce a reconfigured receiver filter mask. The processing continues by receiving a data segment of the frame in accordance with the reconfigured receiver filter mask.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: May 26, 2009
    Assignee: Broadcom Corporation
    Inventors: Tushar Moorti, Christopher J. Hansen, Jason A. Trachewsky
  • Patent number: 7535869
    Abstract: A mobile communication system and method utilizing Orthogonal Frequency Division Multiplexing (OFDM) receives channel quality information (CQIs) for subcarriers through which reference signals are transmitted and subcarriers through which data signals are transmitted, in subbands, each including a predetermined number of subcarriers among a plurality of the subcarriers. The CQIs are received from respective receivers. Resources are dynamically assigned to the respective receivers according to the feedback CQIs, thereby enabling dynamic resource assignment with minimized signaling overhead.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: May 19, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seok-Hyun Yoon, Chang-Ho Suh, Young-Kwon Cho, Chan-Byoung Chae, Jung-Min Ro
  • Patent number: RE43151
    Abstract: A technique is disclosed that improves the efficiency of transmitting data over multiple shared-communications channels without some of the costs and disadvantages associated with techniques in the prior art. In particular, and in accordance with the illustrative embodiment of the present invention, a data frame is simultaneously transmitted across a plurality of channels, but the acknowledgment frame to the data frame is not. Instead, a plurality of redundant acknowledgment frames are generated and each one is transmitted independently and within each of the channels used to transmit the data frame.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: January 31, 2012
    Assignee: Intellectual Ventures I LLC
    Inventors: Michael Andrew Fischer, Maarten Menzo Wentink