Patents Assigned to Via Telecom, Inc.
  • Patent number: 7987413
    Abstract: A control channel encoder, e.g., in a UMB system, uses a channel structure that can efficiently transmit more information bits, yet achieve sufficient detection and false alarm performance. The control channel encoder uses tail-biting convolutional coding and Cyclical Redundancy Check (CRC).
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: July 26, 2011
    Assignee: Via Telecom, Inc.
    Inventors: Hong Kui Yang, Jian Gu, Pengcheng Su
  • Publication number: 20110164609
    Abstract: An apparatus for notifying of a circuit switched event over a packetized data network. The apparatus includes a packetized data modem and an internetworking interface. The packetized data modem is configured to transmit and receive packetized data over a packetized data radio link. The packetized data modem has a tunneling link access control processor that is configured to encapsulate/decapsulate data for a subset of sub-layers corresponding to a link access control layer of a circuit switched network model. The internetwork interface is operatively coupled to the packetized data modem via the packetized data network, and is configured to notify the packetized data modem of the circuit switched event. The internetworking interface has a link access control/tunneling link access control processor that is configured to encapsulate/decapsulate the data when performing notification of the circuit switched event.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 7, 2011
    Applicant: VIA TELECOM, INC.
    Inventor: Anthony S. Lee
  • Publication number: 20110124380
    Abstract: A method and system for eliminating echo in a speaker-microphone communication system are provided.
    Type: Application
    Filed: June 3, 2010
    Publication date: May 26, 2011
    Applicant: VIA TELECOM, INC.
    Inventor: Guofeng Wang
  • Publication number: 20110069635
    Abstract: System and method for managing connections in a mobile device. A first application may be executing on the mobile device. A first application request, including first quality of service (QOS) parameters and first connection information for the first application, may be received. The first QOS parameters and the first connection information may be stored in a routing table. A first connection for the first application may be established based on the first QOS parameters and the first connection information. A second application may be executing on the mobile device. A second application request, including second QOS parameters and second connection information for the second application, may be received. The second QOS parameters and the second connection information may be stored in the routing table. A second connection for the second application may be established based on the second QOS parameters and the second connection information.
    Type: Application
    Filed: September 23, 2009
    Publication date: March 24, 2011
    Applicant: VIA TELECOM, INC.
    Inventors: Su-Lin Low, Hausting Hong
  • Publication number: 20110065484
    Abstract: A wireless mobile communication device is provided. The wireless mobile communication device has, a wireless communication module for performing wireless communications, a hands-free conversation module for providing a hands-free mode of a phone conversation during the wireless communications, a speed value generation module for receiving location or velocity information to generate a speed value, and a hands-free mode controller for determining whether the speed value has exceeded a predetermined threshold value, and activating the hands-free conversation module in response to the speed value exceeding the predetermined threshold value.
    Type: Application
    Filed: November 23, 2009
    Publication date: March 17, 2011
    Applicant: VIA TELECOM, INC.
    Inventor: Xiaomei Liu
  • Publication number: 20110051697
    Abstract: A mobile communication device for access procedure enhancement is provided. In the mobile communication device, a wireless module performs wireless transmissions and receptions to and from a service network. Also, a controller module transmits an access probe to the service network via the wireless module, and retransmits the access probe in response to not receiving an acknowledgement of the access probe from the service network via the wireless module in a waiting period of time. The waiting period of time is determined according to a coherence-time related offset.
    Type: Application
    Filed: September 3, 2010
    Publication date: March 3, 2011
    Applicant: VIA TELECOM, INC.
    Inventors: Guotong Wang, Jian Gu, Anthony Lee, Shu Wang
  • Patent number: 7900126
    Abstract: Systems and methods for generating check node updates in the decoding of low-density parity-check (LDPC) codes use new approximations in order to reduce the complexity of implementing a LDPC decoder, while maintaining accuracy. The new approximations approximate the standard float-point sum-product algorithm (SPA), and can reduce the approximation error of min-sum algorithm (MSA) and have almost the same performance under 5 bits fix-point realization as the float-point sum-product algorithm (SPA).
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: March 1, 2011
    Assignee: Via Telecom, Inc.
    Inventors: Guohui Sun, Hongwen Yang
  • Patent number: 7894393
    Abstract: A method for determining slotted mode operation timing in a hybrid access terminal comprises acquiring a first network, determining a first access interval for the first network, acquiring a second network, determining a second access interval for the second network, determining if the first and second access intervals overlap, and re-determining the second access interval when it is determined that the first and second access intervals overlap.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: February 22, 2011
    Assignee: Via Telecom, Inc.
    Inventors: Satyaprasad Srinivas, Su-Lin Low, WeiHang Zhou
  • Publication number: 20110032924
    Abstract: A mobile communication device for managing the operation status of wireless transmissions and receptions is provided. In the mobile communication device, a wireless module performs the wireless transmissions and receptions. Also, in the mobile communication device, a controller module activates the wireless module to transmit a scheduling request message to the service network, and keeps the wireless module activated for the wireless receptions in a first predetermined period of time subsequent to the transmission of the scheduling request message.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 10, 2011
    Applicant: VIA TELECOM, INC.
    Inventors: Anthony Lee, Guotong Wang, Jian Gu
  • Publication number: 20110028141
    Abstract: An access network is wirelessly coupled to an access terminal. The access network comprises a plurality of communication modules, a transmitter and a channel estimator. The plurality of communication modules coupled to the access terminal and configured to transmit a plurality of signals. The transmitter coupled to the access terminal and configured to send an index which indicates number of the plurality of signals. The channel estimator, configured to adjust and modulate a channel state information into the plurality of signals.
    Type: Application
    Filed: July 21, 2010
    Publication date: February 3, 2011
    Applicant: VIA TELECOM, INC.
    Inventors: Hong-Kui Yang, Shu Wang
  • Publication number: 20110009126
    Abstract: A mobile communication device for prioritized load balancing is provided. In the mobile communication device, a wireless module receives data communication services and a broadcast message from a first service network. Also, a controller determines whether the broadcast message has load balancing information for the first service network and a second service network, and in response to the broadcast message having the load balancing information, generates a random number and determines whether the random number belongs to a restricted priority level according to the load balancing information. The controller further suspends a reselection from the first service network to the second service network, in response to the random number belonging to the restricted priority level.
    Type: Application
    Filed: June 3, 2010
    Publication date: January 13, 2011
    Applicant: VIA TELECOM, INC.
    Inventor: Anthony Lee
  • Publication number: 20100322070
    Abstract: A mobile communication device for load balancing management is provided. In the mobile communication device, a wireless module receives data communication services via a first service node and receives a plurality of system information messages from the first service node and a plurality of second service nodes, wherein each of the system information messages has a forward-link quality threshold corresponding to a respective service node. Also, a controller determines a traffic type of the data communication services and a signal indicator of the first service node, and determines whether the signal indicator is less than the forward-link quality threshold corresponding to the first service node. In response to that the signal indicator is less than the forward-link quality threshold corresponding to the first service node, the controller switches the data communication services from the first service node to one of the second service nodes according to the traffic type.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 23, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Guotong Wang, Anthony Lee, Jian Gu, Shu Wang
  • Publication number: 20100309868
    Abstract: A method is provided for coupling a plurality of access nodes wirelessly to a plurality of access terminals. The method includes dividing up a carrier frequency into a plurality of subbands; scheduling one or more access terminals to share one of the plurality of subbands; and via one of the plurality of access nodes, first communicating with the one or more access terminals over the one of the plurality of subbands. The communicating includes, within the one of the plurality of subbands, time division multiplexing interlaces corresponding to each of the one or more access terminals.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 9, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Hong-Kui Yang, Shu Wang
  • Publication number: 20100290437
    Abstract: A user equipment is provided with connection to a first mobile service network providing circuit-switched services. A first protocol module communicates with the first mobile service network. A circuit-switch tunneling control protocol module establishes a circuit-service tunnel to a second mobile service network providing packet-switched services. A circuit-switch tunneling data protocol module transmits a circuit-service tunneling message from the first protocol module to the second mobile service network via the circuit-service tunnel.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 18, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Guotong Wang, Anthony Lee
  • Publication number: 20100290436
    Abstract: A circuit service tunneling system is provided. The circuit service tunneling system has a first and a second mobile service network, and a user equipment. The first mobile service network provides packet-switched domain services and the second mobile service network provides circuit-switched domain services. An interworking system in the second mobile service network interconnects the first mobile service network with the second mobile service network, by connecting to a mobility management entity in the first mobile service network, to enable the first mobile service network to provide the circuit-switched domain service to the user equipment via the second mobile service network.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 18, 2010
    Applicant: VIA TELECOM, INC.
    Inventor: Guotong Wang
  • Publication number: 20100287327
    Abstract: A computing system is provided. A flash memory device includes at least one mapping block, at least one modification block and at least one cache block. A processor is configured to perform: receiving a write command with a write logical address and predetermined data, loading content of a cache page from the cache block corresponding to the modification block according to the write logical address to a random access memory device in response to that a page of the mapping block corresponding to the write logical address has been used, the processor, reading orderly the content of the cache page stored in the random access memory device to obtain location information of an empty page of the modification block, and writing the predetermined data to the empty page according to the location information. Each cache page includes data fields to store location information corresponding to the data has been written in the pages of the modification block in order.
    Type: Application
    Filed: February 15, 2010
    Publication date: November 11, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Rong Li, Huaqiao Wang, Yuefeng Jin
  • Publication number: 20100279683
    Abstract: System and method for wirelessly communicating between a base station and a mobile device. The base station wirelessly sends a first one or more overhead messages to the mobile device. The first one or more overhead messages may include at least one parameter. The mobile device may wirelessly receive the first one or more overhead messages from the base station, including the at least one parameter. The base station may wirelessly send a second one or more messages to the mobile device according to a schedule based on the at least one parameter. The mobile device may wirelessly receive the second one or more messages according to the schedule based on the at least one parameter. The mobile device may schedule a sleep cycle based on the at least one parameter, which may reduce battery consumption in the mobile device. The second one or more messages may be sent less frequently than the first one or more overhead messages.
    Type: Application
    Filed: May 1, 2009
    Publication date: November 4, 2010
    Applicant: VIA TELECOM, INC.
    Inventor: Anthony S. Lee
  • Publication number: 20100262881
    Abstract: A method for providing improved reverse link transmission timing in an access terminal is provided. The method includes processing automatic repeat request (ARQ) bits from a MAC bit processing unit for a previous sub-frame. The ARQ bits comprise a hybrid ARQ (H-ARQ) bit, a last ARQ (L-ARQ) bit, and a packet ARQ (P-ARQ) bit. The method also includes calculating the maximum allowed reverse rate and grant size for a MAC flow. The method further includes distributing grants to each application in the MAC flow. The method also includes storing a stored read pointer in an application transmit queue, for each application in the MAC flow. The method also includes preparing data for transmission, in response to storing the stored read pointer for each application in the MAC flow, based on the ARQ bits. The method also includes transmitting the data.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Su-Lin Low, Jae Sun Lee
  • Publication number: 20100246489
    Abstract: An access node wirelessly coupled to a plurality of access terminals, having a subband scheduler, a plurality of orthogonal frequency division multiplex elements, and a plurality of antennas. The subband scheduler receives precoded data, and schedules transmission of a preamble signal and a plurality of data streams. The plurality of orthogonal frequency division multiplex elements converts the preamble signal and the plurality of data streams into a corresponding preamble tone and a corresponding plurality of data tones. The preamble tone indicates a mapping of the plurality of data tones to one or more of the plurality of access terminals. The plurality of antennas transmits the corresponding preamble tone and the corresponding plurality of data tones in timely fashion for receipt by the plurality of access terminals. The corresponding preamble tone and the corresponding data tones are transmitted over subbands of a code division multiple access (CDMA)-based carrier frequency.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 30, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Hong-Kui Yang, Shu Wang
  • Publication number: 20100246698
    Abstract: A synchronization method used in a receiving terminal of an orthogonal frequency division multiplexing (OFDM) system is illustrated. The synchronization method includes following steps: (a) receiving an OFDM training symbol at the receiving terminal, wherein the OFDM training symbol includes many sample points; (b) calculating first function values according to the sample points by using a first function; (c) selecting D timing points from many timing points corresponding to the first function values, wherein D first function values of the D timing points are larger than a first threshold value; (d) calculating D second function values of the D timing points by using a second function; and (e) selecting a first timing point from the D timing points, and setting the first timing point as a timing synchronization point, wherein the second function value of the first timing point is a first one greater than a second threshold value.
    Type: Application
    Filed: May 19, 2009
    Publication date: September 30, 2010
    Applicant: VIA TELECOM, INC.
    Inventor: Hua-Feng Jin