Patents Assigned to Broadcom
  • Patent number: 8958321
    Abstract: A method for managing power control of enhanced dedicated channel (E-DCH) uplink (UL) channels of at least one user equipment (UE) that is located on a femtocell base station (FBS), is provided herein. The method includes calculating, for the UE, a maximum dedicated physical control channel (DPCCH) power level. The method also includes lower, by the FBS, a DPCCH power level for the UE when the actual DPCCH power level is exceeding the maximum DPCCH power level for the UE. The lowering of the DPCCH power level is independent of a signal-to-interference (SIR) target for the FBS.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Sharon Levy, Felix Gess
  • Patent number: 8958802
    Abstract: A base station can observe downlink communications of neighboring base stations of neighboring cells to determine operational parameters of these neighboring base stations in a process called sniffing. The base station ceases downlink transmission and/or uplink reception and initiates downlink reception for a duration in time and/or over frequency to form a sniffing window to observe the downlink communications of the one or more neighboring base stations. The sniffing window represents an area in time and/or frequency where downlink communications are not transmitted. The base station determines operational parameters based upon the downlink communications of the one or more neighboring base stations that are observed during the sniffing window.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventor: Amir Appel
  • Patent number: 8958831
    Abstract: Methods and devices arranged to control access to a cell in a communication network. One embodiment includes a processing system arranged to cause an apparatus to receive a plurality of Closed Subscriber Group identifiers (CSG IDs) assigned to the cell, select and transmit a first CSG ID from the plurality of CSG IDs on the basis of a first load condition on the cell, and select and transmit a second, different, CSG ID from the plurality of CSG IDs on the basis of a second, different, load condition on the cell.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Tao Chen, Gilles Charbit
  • Patent number: 8958821
    Abstract: A multi-radio mobile device comprises a plurality of different radios. When a location update occurs, the multi-radio mobile device, at a specific location, acquires location-based radio information from a remote location server. The multi-radio mobile device selects a radio for use in the specific location based on the acquired location-based radio information comprising available radios in the specific location and radio weights. The radio is selected from the available radios based on the radio weights in the specific location. Transmissions of a desired service are received in the specific location utilizing the selected radio. Location-based radio measurements reports to the remote location server are generated utilizing signal strength measurements for the received signals. Radio quality information of the available radios is calculated by the location server utilizing location-based radio measurement reports from associated users.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Charles Abraham, Mark Buer, David Garrett, Jeyhan Karaoguz, David Albert Lundgren, David Murray
  • Patent number: 8958466
    Abstract: Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available modem data. In particular, the loop length, the number of bridge taps and the length of bridged taps can be estimated by comparing a measured frequency domain channel impulse response of the transmission line to a model of a loop that is comprised of multiple sections and multiple bridge taps.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventor: Murat Belge
  • Patent number: 8958485
    Abstract: A broadband gateway, which that enables communication with a plurality of devices, handles at least one physical layer connection to at least one corresponding network access service provider. The broadband gateway may identify video layer information required for a layered video service based on video decoding capabilities and/or power profiles for the devices. The identified video layer information, comprising number of required layers and corresponding video formats such as 720P60, 1080i60 and/or 1080P60, may be communicated to the at least one network access service provider. A base layer video and one or more enhancement layer videos, generated via scalable coding based on the communicated identified video layer information, may be received from the at least one corresponding network access service provider.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Xuemin Chen, Jeyhan Karaoguz, Wael William Diab, David Garrett, David Albert Lundgren, Rich Prodan
  • Patent number: 8959245
    Abstract: A request from a user device is received for a service by a network management server via a communication network. The network management server determines multiple routes for delivering content associated with the requested service based on a provisioning profile for the user device. Content associated with the requested service is then delivered via the determined multiple routes. The provisioning profile is updated and includes preferred service types, desired QoS for one or more services, client account information, and/or client credit verification information. The network management server manages the delivery of the content associated with the requested service via the determined multiple routes. The content includes packets that are the same, which are communicated or delivered simultaneously via the determined multiple routes. The network management server allocates one or more of the determined multiple routes for delivering the content based on priorities associated with the routes.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James Bennett
  • Patent number: 8957548
    Abstract: An apparatus and method is disclosed to control antenna characteristic of a near field communications (NFC) device. The apparatus and method may tune a resonant frequency of an antenna module of the NFC device to compensate for manufacturing tolerances of the antenna module. The NFC device may cause the antenna module to operate in a first configuration for a first period of time that is characterized by a compensation resonant frequency and a second configuration for a second period of time that is characterized by an actual resonant frequency. The NFC device causes the antenna module to continuously switch between the first configuration and the second configuration such that on average, a resonant frequency of the antenna module is approximately equal to an expected resonant frequency of the antenna module.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventor: Franz Xaver Fuchs
  • Patent number: 8957628
    Abstract: Disclosed is a method for use by a device to distinguish between a Charging Downstream Port (“CDP”) and a Dedicated Charging Port (“DCP”). The method comprises detecting that the device is attached to a charging port, and determining whether the charging port is the CDP or the DCP without causing a host coupled to the CDP to be able to detect the device if the charging port is the CDP.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventor: Sebastian Joseph Capella
  • Publication number: 20150043450
    Abstract: Embodiments include systems and methods for improving the beamforming efficiency of Multi-User Multiple Input Multiple Output (MU-MIMO) and/or Coordinate Beamforming (CB) in wireless multi-access networks. In one aspect, a receiver-aided approach for MU-MIMO and/or CB is provided. Unlike conventional MU-MIMO/CB operation which is transparent to the UE, the receiver-aided approach herein makes information about potential MU-MIMO and/or CB multi-user interference available to UEs being considered for MU-MIMO and/or CB transmission. As such, the UEs can provide Channel State Information (CSI) that is better tailored to actual data transmission conditions than in conventional operation, and the base station can make better decisions regarding MU-MIMO and/or CB operation, user selection, and transmission parameters (e.g., number of data streams, precoder matrix, etc.).
    Type: Application
    Filed: July 17, 2014
    Publication date: February 12, 2015
    Applicant: Broadcom Corporation
    Inventors: Sirikiat ARIYAVISITAKUL, Daewon LEE
  • Publication number: 20150043520
    Abstract: A method, apparatus and computer program product are provided for generating Reference Signals utilized in downlink tracking of an unlicensed band. A method and apparatus may determine whether carriers of an unlicensed band secondary component carrier are available for usage to provide a signal(s), enabling timing and frequency tracking of downlink carriers responsive to discontinuous transmission via a medium(s) of the unlicensed band utilized to provide content to devices. The method and apparatus may also select the signal based on a band of the carriers and a detection indicating whether communication terminals of a coexisting system are using a carrier of the band. The method and apparatus may provide the signal to a device(s) via a carrier responsive to determining that the carrier is available or via an occupied carrier utilized by the coexisting system enabling the device to continue tracking of timing and frequency information of the downlink carriers.
    Type: Application
    Filed: November 17, 2011
    Publication date: February 12, 2015
    Applicant: Broadcom Corporation
    Inventors: Pengfei Sun, Na Wei, Wei Bai, Haiming Wang
  • Publication number: 20150043522
    Abstract: An interference suppression (IS) time/frequency zone for improved interference suppression is provided. The IS time/frequency zone can be scheduled and set up using existing signaling of the Almost Blank Subframe (ABS) framework. This includes using the existing signaling of the ABS framework to schedule the IS time/frequency zone, coordinate transmission parameters among base stations for the IS time/frequency zone, and signal the IS time/frequency zone to the UT. In another aspect, interfering base stations align respective reference signals during the IS time/frequency zone, which allows the UT to measure the channels from its serving base station and/or the interfering base stations(s). With channel state information knowledge at the UT, interference suppression can be achieved.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Amin MOBASHER, Louay JALLOUL
  • Publication number: 20150043625
    Abstract: A communication device includes a communication interface, a number of variable power amplifiers (VPAs), and a processor. Some of the VPAs are configured to process analog signals to generate processed analog signals (e.g., each VPA configured to process one of the analog signals to generate one of the processed analog signals based on a respective VPA control signal). A composite VPA processes a summation of the processed analog signals, which are generated by certain of the VPA, to generate a processed composite signal based on a composite VPA control signal. The processor generates the a first, a second, and a composite VPA control signals based, at least in part, on configuration information from another communication device via the communication interface. The processor may be configured to consider other information as well, such as locally generated information (within the communication device), operational history, current operating conditions, etc.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Ramon Alejandro Gomez, Avraham Kliger, Thomas Joseph Kolze, Kevin Lee Miller, Joseph Leonard Laskowski
  • Publication number: 20150046775
    Abstract: Systems and methods for enabling encoding/decoding schemes that satisfy the IEEE 802.3 Mean Time To False Packet Acceptance (MTTFPA) requirement in an Ethernet Passive Optical Network over Coax (EPoC) are described. The proposed encoding/decoding schemes assume existing Medium Access Control (MAC) layer Cyclic Redundancy Check (CRC) encoding/decoding, thereby requiring no changes in the Ethernet Passive Optical Network (EPON) MAC protocol, but increase error protection in the EPoC physical layer (PHY) to meet the MTTFPA requirement without sacrificing desired Ethernet frame loss ratios and downstream/upstream data rates for EPoC.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Applicant: Broadcom Corporation
    Inventors: Richard Prodan, Bazhong Shen, Mark Laubach
  • Publication number: 20150046778
    Abstract: Optimal period rate matching for turbo coding. A means is provided herein by which a nearly optimal (e.g., optimal for one block size and sub-optimal for others) periodic puncturing pattern that depends on a mother code. Any desired rate matching can be achieved using the means and approaches presented herein to ensure an appropriate rate of an encoded block output from a turbo encoder so that the subsequently modulated signal generated there from has the appropriate rate. In addition, some embodiments can also employ shifting for another design level available in accordance with puncturing employed to provide for periodic rate matching. Selectivity can also be employed, such that, a first periodic puncturing pattern can be applied at a first time to ensure a first rate, and a second periodic puncturing pattern can be applied at a second time to ensure a second rate.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Ba-Zhong Shen, Tak K. Lee
  • Publication number: 20150043549
    Abstract: One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications. A RAW is defined in which only devices of the particular class (e.g., low power class, Z class, smart meter station (SMSTA) class, etc.) are allowed access to the communication medium. Indication of the end of such a RAW may be included within one or more bits set within a signal field (SIG) field of a framer packet generated by a given device within the system and transmitted to one or more other devices. After completion of the RAW, other respective devices of at least one other type of class may be provided access to the communication medium. The manner of access to the communication media outside of the RAW may be varied (e.g., scheduled, based on carrier sense multiple access/collision avoidance (CSMA/CA), etc.).
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventor: Matthew James Fischer
  • Publication number: 20150044979
    Abstract: A mixer for a transmitter includes a voltage converter to convert a baseband voltage to a baseband current. A mixer component mixes the baseband current with a local oscillator frequency. An output of the mixer component includes a radio frequency signal and a higher order radio frequency signal. A coupler sends the radio frequency signal and the higher order radio frequency signal to a differential output. A filter is integrated into the coupler to filter the higher order radio frequency signal before being output by the differential output.
    Type: Application
    Filed: August 28, 2013
    Publication date: February 12, 2015
    Applicant: Broadcom Corporation
    Inventors: Utku Seckin, Ali Afsahi, Ali Sarfaraz
  • Publication number: 20150043502
    Abstract: A management unit manages a plurality of multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a device interface for facilitating a bidirectional data communication with the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices via either a logical or physical control channel. A network interface receives network resource data from the plurality of networks. A management processing unit includes a local agent that gathers environmental data, wherein the management processing unit processes the inbound control data, the environmental data and the network resource data and that generates the outbound control data in response thereto.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Vinko Erceg, David Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley, Arya Reza Behzad
  • Publication number: 20150044975
    Abstract: A remote management system employs multiple wireless links, which may include a local wireless link and a remote wireless link. The remote wireless link may be in place between a troubleshooting device held by a person located at a service site, and a remote service center for a service provider, such as an Internet service provider. The local wireless link may be in place between the person at the service site and the equipment needing service, such as a DSL model provided by the service provider. Establishing the multiple links allows the service provider to troubleshoot the equipment, without incurring the substantial cost of sending a specialized service technician to the service site. As examples, the troubleshooting device may be a smart phone, the remote wireless link may be a cellular connection, and the local wireless link may be a Bluetooth or NFC connection.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 12, 2015
    Applicant: Broadcom Corporation
    Inventor: Lowell D. Lamb
  • Publication number: 20150043659
    Abstract: A video processing system includes a video transcoder that receives a independent video layer stream and a first dependent video layer stream that requires the independent video layer for decoding, the video transcoder generating a transcoded video signal based at least one of the independent video stream and the dependent video layer stream.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Stephen E. Gordon, Sherman (Xuemin) Chen, Michael Dove, David Rosmann, Thomas J. Quigley, Jeyhan Karaoguz