Patents Assigned to Broadcom
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Publication number: 20150280894Abstract: A wireless device is operated such that transmission and reception by the wireless device uses half-duplex frequency division duplexing. The wireless device transmits in an uplink subframe at a first frequency and receives in a downlink subframe at a second frequency. The uplink subframe and downlink subframe occur at different times. The frame structure that is used has a special subframe (80) to allow at least switching from downlink reception to uplink transmission. In one example, the special subframe (80) consists only of a downlink pilot time slot (85), to allow downlink pilot signals to be received at the wireless device, and a guard period (90), during which no data is received at or transmitted by the wireless device. In another example, the special sub frame (80) comprises a downlink pilot time slot (85) and a guard period (90), the special subframe (80) having no uplink pilot time slot for uplink pilot signals.Type: ApplicationFiled: October 5, 2012Publication date: October 1, 2015Applicant: Broadcom CorporationInventors: Gilles Charbit, Jianke Fan
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Publication number: 20150282210Abstract: The present invention addresses a method, apparatus and computer program product for vehicle gateway access in cellular network for vehicle communications. A dedicated Vehicle gateway random preamble is defined to serve the vehicle gateway access to the network in order to resolve the contention during the initial access and thus decrease access latency. In addition to that, a new cause value Vehicle gateway originated data/signaling for the RRC connection establishment request is defined to inform the network that the coming data traffic is from the vehicle communication.Type: ApplicationFiled: July 23, 2012Publication date: October 1, 2015Applicant: BROADCOM CORPORATIONInventors: Zhenhong Li, Wei Zou, Haifeng Wang, Xianjun Feng, Kenan Xu
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Publication number: 20150280325Abstract: Methods and systems for configuring a leaky wave antenna (LWA) utilizing micro-electromechanical systems (MEMS) are disclosed and may include configuring a resonant frequency of one or more LWAs in a wireless device utilizing MEMS actuation. RF signals may be communicated using the LWAs. The LWAs may be integrated in metal layers in a chip, an integrated circuit package, and/or a printed circuit board in the wireless device. The LWAs may include microstrip waveguides where a cavity height of the LWAs may be dependent on a spacing between conductive lines in the microstrip waveguides. The LWAs may be configured to transmit the wireless signals at a desired angle. The integrated circuit package may be affixed to a printed circuit board and an integrated circuit may be flip-chip-bonded to the integrated circuit package. An air gap may be integrated adjacent to one or more of the metal layers for the MEMS actuation.Type: ApplicationFiled: June 12, 2015Publication date: October 1, 2015Applicant: Broadcom CorporationInventor: Ahmadreza ROFOUGARAN
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Publication number: 20150280881Abstract: A user equipment UE determines at least one first set SI of physical resource blocks PRBs, and detects downlink signaling within search spaces of set(s) SI. Through that downlink signaling the UE obtains a configuration for a downlink control channel, and that configuration indicates at least one second set S2 of PRBs and at least one search space specific for the UE which lies within S2. The UE utilizes the obtained configuration to monitor at least some of the search spaces of SI and the at least one search space specific for the UE of S2 for further downlink control signaling. Multiple implementations are detailed for how the UE gets SI. This invention is particularly useful for a configurable ePDCCH region in a stand-alone carrier where the UE is not able to get the new configuration from some other carrier such as a PCell whose configuration does not change.Type: ApplicationFiled: October 10, 2012Publication date: October 1, 2015Applicant: Broadcom CorporationInventors: Chunyan GAO, Erlin ZENG, Shuang TAN, Na WEI, Wei HONG, Pengfei SUN, Wei BAI, Lili ZHANG
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Publication number: 20150282103Abstract: A device includes circuitry configured to determine that a total transmit power of two or more pending transmissions exceeds a maximum transmit power. Power difference thresholds are determined for the two or more pending transmissions corresponding to a difference between a desired transmit power and an allowed transmit power. At least one pending transmission is identified to send based on the power difference thresholds.Type: ApplicationFiled: March 30, 2015Publication date: October 1, 2015Applicant: BROADCOM CORPORATIONInventors: Antti Oskari IMMONEN, Jussi Ojala, Helka-Liina Maattanen, Sami Jukka Hakola
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Publication number: 20150280953Abstract: A wireless communication device (alternatively, device) includes a communication interface and a processor, among other possible circuitries, components, elements, etc. to support communications with other wireless communication device(s) and to generate and process signals for such communications. A device is configured to generate various orthogonal frequency division multiplexing (OFDM) and/or orthogonal frequency division multiple access (OFDMA) packets (e.g., frames, signals, etc.) that are based on any of a group of set of OFDM/A frame structures. Across the various OFDM/A frame structures, the ratio of pilot sub-carriers to data sub-carriers across resource units (RUs) of decreases as the total number of sub-carriers across the RUs increases. In addition, some of the OFDM/A frame structures include different total number of sub-carriers yet same number of pilot sub-carriers.Type: ApplicationFiled: June 11, 2015Publication date: October 1, 2015Applicant: BROADCOM CORPORATIONInventor: Ron Porat
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Publication number: 20150282235Abstract: Embodiments of the present invention are directed to a wireless-enabled component (WEC) for enabling a wireless bus for intra-chip and inter-chip communication. A WEC encompasses a functional block of an IC (such as, for example, a processing core of a processing unit), an entire IC (such as, for example, a processing unit), or a device that includes a plurality of ICs (such as, for example, a handheld device). According to embodiments, a WEC may be associated with one or more sub-blocks of an IC, a single IC, or a plurality of ICs.Type: ApplicationFiled: April 7, 2015Publication date: October 1, 2015Applicant: Broadcom CorporationInventors: Ahmadreza (Reza) ROFOUGARAN, Arya Reza BEHZAD, Sam Ziqun ZHAO, Jesus Alfonso CASTANEDA, Michael BOERS
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Publication number: 20150276856Abstract: Methods and apparatus are disclosed for wirelessly communicating among integrated circuits and/or functional modules within the integrated circuits. A semiconductor device fabrication operation uses a predetermined sequence of photographic and/or chemical processing steps to form one or more functional modules onto a semiconductor substrate. The functional modules are coupled to an integrated waveguide that is formed onto the semiconductor substrate and/or attached thereto to form an integrated circuit. The functional modules communicate with each other as well as to other integrated circuits using a multiple access transmission scheme via the integrated waveguide. One or more integrated circuits may be coupled to an integrated circuit carrier to form Multichip Module. The Multichip Module may be coupled to a semiconductor package to form a packaged integrated circuit.Type: ApplicationFiled: June 10, 2015Publication date: October 1, 2015Applicant: Broadcom CorporationInventors: Jesus Alfonso Castaneda, Arya Reza Behzad, Ahmadreza Rofougaran, Sam Ziqun Zhao, Michael Boers
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Publication number: 20150282080Abstract: A device includes circuitry configured to receive discontinuous reception (DRX) configuration parameters for at least one cell. The circuitry is also configured to determine that the at least one cell is in an ON state or an OFF state. A device-specific DRX cycle or a common DRX cycle is activated corresponding to the DRX configuration parameters based on the at least cell being in the ON state or the OFF state.Type: ApplicationFiled: March 30, 2015Publication date: October 1, 2015Applicant: BROADCOM CORPORATIONInventors: Helka-Liina MAATTANEN, Tao CHEN, Jussi OJALA
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Patent number: 9148186Abstract: A radio receiver supporting cancellation of thermal and phase noise in a down-converted RF signal. An inbound RF signal and blocking signal are provided directly to a passive mixer for down-conversion into a first baseband signal having data, thermal noise, and reciprocal mixing (RM) noise components. The inbound signals are also provided to a transconductance circuit, the output of which is provided to a second passive mixer for conversion into a current signal having data and blocking signal components, and a RM image. The blocking signal component and the RM image are mixed with a second LO signal, derived from the blocking signal, to produce a RM noise cancellation signal. The data component of the current signal is converted into a second baseband signal having data and thermal noise components. The first baseband signal, second baseband signal and RM noise cancellation signal are then combined through harmonic recombination.Type: GrantFiled: April 28, 2014Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventors: Hao Wu, Mohyee Salahelden Mikhemar, David Patrick Murphy, Hooman Darabi
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Patent number: 9148679Abstract: Processing video data for delivery to a remote wireless includes receiving video data from a video source and receiving position and motion information regarding the remote wireless device. Operation also includes, based upon the position and motion information regarding the remote wireless device, determining an anticipated Quality of Service (QoS) available for servicing of transmissions to the remote wireless device and determining video processing parameters based upon the video data and the anticipated QoS. Operation further includes processing the video data based upon the video processing parameters to produce an output video stream and transmitting the output video stream for delivery to the remote wireless device. Operation may also/alternatively include altering wireless transmission parameters of a transport stream servicing delivery of the video data to alter the anticipated QoS.Type: GrantFiled: December 31, 2013Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Sherman Chen, Michael Dove, Thomas J. Quigley, David Rosmann, Stephen Elliott Gordon
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Patent number: 9148854Abstract: A method and system for saving power in a peer-to-peer group owner. The group owner uses an adaptive absence method for deciding the absence of the group owner based on the amount of data traffic in the network. The group owner periodically sends period of absence information with dynamic values to client devices, informing them of the dynamically changing period of absence.Type: GrantFiled: July 27, 2012Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventors: Neeraj Kumar Garg, Jithu Jance
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Patent number: 9148295Abstract: A cable set-top box system with integrated cable tuners and MoCA may implemented on a single integrated circuit, supporting communication over a shared coaxial cable line. The system may include a memory interface shared by DOCSIS and video/audio subsystems. The system may further include an embedded processor in the MoCA subsystem, enabling autonomous operation of the MoCA subsystem and secure flash memory that is not directly accessible by the DOCSIS subsystem.Type: GrantFiled: July 2, 2010Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventors: Jonathan Kuo, Phong Thanh Tran
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Patent number: 9146892Abstract: The disclosed systems and methods relate to improving PCI Express (PCI-E) L1 Active State Power Management (ASPM) exit latency by speculatively initiating early L1 exit based on a network stimulus. Aspects of the present invention may enable a higher level of performance and responsiveness while supporting the benefits of ASPM. Aspects of the present invention may minimize operational cost by reducing latency in processes that utilize a PCI-E interface. Aspects of the present invention may be embodied in a Network Interface Controller (NIC) or any other device with a PCI-E interface that supports ASPM.Type: GrantFiled: October 11, 2007Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventor: Steven B. Lindsay
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Patent number: 9147090Abstract: A mesh grid protection system is provided. The system includes assertion logic configured to transmit a first set of signals on a first set of grid lines and a second set of grid lines. The system also includes transformation logic to transform the first set of signals to generate a second set of signals, to transmit the second set of signals on a third set of grid lines that are coupled to the first set of grid lines, and to transmit the second set of signals on a fourth set of grid lines that are coupled to the second set of grid lines. In addition, the system includes verification logic to compare the second set of signals on the third and fourth set of grid lines to an expected set of signals.Type: GrantFiled: June 27, 2014Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventors: Kambiz Rahimi, Mark Buer, Rolando Ogot
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Patent number: 9146275Abstract: A method for communication is disclosed and includes, in a single chip including a plurality of on-chip devices, acquiring, from at least one of the plurality of on-chip devices, power information for the at least one of the plurality of on-chip devices. The acquiring may be in response to a query signal received by the at least one of the plurality of on-chip devices. An output signal indicative of power status of the at least one of the plurality of on-chip devices may be generated from within the chip, based on the acquired power information. The acquired power information may be communicated to the off-chip device. The acquired power information may be wirelessly communicated to the off-chip device via an antenna or an infrared transmitter on the single chip. The acquired power information may be communicated to an off-chip device via a wired connection on the single chip.Type: GrantFiled: November 16, 2010Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventor: Bryan Chase
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Patent number: 9148805Abstract: The present disclosure is directed to a system and method for transitioning small cell base stations out of a discontinuous transmission (DTX) mode. The system and method comprise monitoring at the small cell base stations uplink transmissions from user terminals (UTs) to a macrocell base station while the small cell base stations are in the DTX mode. The small cell base stations can use the monitored uplink transmissions to, for example, measure received power levels from the UTs and/or measure uplink path losses between the small cell base stations and the UTs. The small cell base stations can report these measured values back to the macrocell base station through a backhaul network. Based on these measurements, the macrocell base station can determine which small cell base stations can support which UTs without transitioning the small cell base stations out of the DTX mode.Type: GrantFiled: May 9, 2014Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventors: Sam Alex, Louay Jalloul
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Method and apparatus for handling data flow in a multi-chip environment using an interchip interface
Patent number: 9148270Abstract: A processing system includes an interchip interface that comprises an interchip interface module having an arbiter to allocate a dedicated time slice in every fixed number of time slices, to assign a first priority to store data item(s) from a first-type channel having a first datapath width in memory during the dedicated time slice. In the remaining time slices of the fixed number of time slices, the arbiter further arbitrates among multiple channels of one or more types other than a first type, where the multiple channels correspond to at least one datapath width different from the first datapath width, and channels with wider datapath win the arbitration. The arbiter further arbitrates among two or more channels of the same type if a certain type of channel(s) wins the arbitration in a time slice. A method for implementing the same is also disclosed.Type: GrantFiled: March 4, 2014Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventor: Yan Wang -
Patent number: 9147933Abstract: A three-dimensional spiral antenna includes a substrate, a spiral antenna element, and a feed point. The substrate includes a three-dimensional shaped region. The spiral antenna element is supported by and conforms to the three-dimensional shaped region such that the spiral antenna element has an overall shape approximating a three-dimensional shape. The feed point is coupled to a connection point of the spiral antenna element.Type: GrantFiled: December 19, 2012Date of Patent: September 29, 2015Assignee: Broadcom CorporationInventors: Nicolaos G. Alexopoulos, Seunghwan Yoon
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Patent number: 9148224Abstract: An Ethernet passive optical network over coaxial (EPOC) system rate mechanism. A network device is provided that includes a physical layer device (PHY) that is configured for coupling to a coaxial cable, a medium independent interface that facilitates data transmission at 10 Gbit/s or greater, and a reconciliation sublayer that is coupled to the PHY via the medium independent interface. The reconciliation sublayer has a codeword detector that is configured to detect a reserved codeword that is received from the PHY over the medium independent interface. The codeword detector can be configured to forward a rate control signal to a media access control (MAC) based on the detection of the reserved codeword.Type: GrantFiled: August 9, 2013Date of Patent: September 29, 2015Assignee: BROADCOM CORPORATIONInventors: Wael William Diab, Edward Boyd