Abstract: In accordance with an embodiment, a method of operating a base station in a wireless system, includes partitioning a frequency band into at least one band of a first type and at least one band of a second type, and coordinating the partitioning with at least one further base station. The at least one band of the first type includes a band on which the base station transmits power proportional to a distance of a user device from the base station, and the at least one band of the second type comprises a band on which base station transmits a data rate inversely proportional to a distance of a user device from the base station.
Abstract: An apparatus comprising a carrier comprising at least one heat-generating component and a thermoelectric cooler (TEC) coupled to a surface of the carrier, wherein the cross-sectional area of the TEC is less than the cross-sectional area of the carrier, and wherein the TEC is aligned with the heat-generating component. Included is an apparatus comprising a carrier comprising a plurality of optical transmitters and an active component, at least one TEC coupled to the surface of the carrier, and a support post coupled to the surface of the carrier, wherein the support post has a higher thermal resistivity than the TEC, wherein the cross-sectional area of the TEC is less than the cross-sectional area of the carrier, and wherein the TEC is aligned with the optical transmitters, the active component, or both.
Type:
Grant
Filed:
November 30, 2009
Date of Patent:
December 25, 2012
Assignee:
Futurewei Technologies, Inc.
Inventors:
Xiao A. Shen, Hongbing Lei, Yu Sheng Bai
Abstract: Method and apparatus are provided for transmitting control information to a mobile station. A persistent assignment is transmitted to a mobile station, wherein the persistent assignment includes a plurality of hybrid automatic repeat request (H-ARQ) channel identifiers (ACIDs). A subsequent assignment including an ACID derived from the plurality of ACIDs is transmitted to the mobile station. In another aspect of the invention, a mobile station receives from a base station a persistent assignment including a plurality of ACIDs, and a subsequent assignment including an ACID derived from the plurality of ACIDs.
Type:
Grant
Filed:
October 20, 2011
Date of Patent:
December 25, 2012
Assignee:
Futurewei Technologies, Inc.
Inventors:
Sean Michael McBeath, Anthony C. K. Soong
Abstract: A method comprising generating a plurality of first symbols that correspond to a side band pilot tone (SBPT) signal for a plurality of data streams, mapping the first symbols into a plurality of second symbols that correspond to a plurality of signal components of the polarization multiplexed (PM) optical signal, and transmitting the second symbols in a plurality of data blocks of a PM optical signal. An apparatus comprising at least one processor coupled to a memory and configured to obtain a data block that comprises a plurality of SBPTs in a received PM optical signal, estimate a set of values for a carrier frequency and a polarization state, update a tap weight of a master equalizer based on the estimated set of values, and update a plurality of slave equalizers based on the updated tap weight of the master equalizer.
Type:
Grant
Filed:
July 30, 2010
Date of Patent:
December 25, 2012
Assignee:
Futurewei Technologies, Inc.
Inventors:
Zhuhong Zhang, Chuandong Li, Fei Zhu, Yusheng Bai
Abstract: A system and method for power control in a communications system are provided. A method for controller operations includes determining a power level for a communications device, and adjusting the power level for the communications device to increase a bandwidth utilization of the communications device, where the adjusting is based on a minimum performance metric for the communications device. The method also includes signaling the adjusted power level to the communications device.
Abstract: In accordance with an embodiment, a data processing system includes a processor, a memory, and an interface port configured to be coupled to a hardware network interface device. The processor is configured to run a process that maps network switching functions of each of a plurality of virtual machines to the hardware network interface device.
Abstract: An apparatus comprising an optical line terminal (OLT) configured to transmit a bandwidth map (BWmap) for a plurality of burst signals to be transmitted by a plurality of optical network units (ONUs), wherein the BWmap comprises a plurality of allocations, and wherein each allocation comprises a start time for the allocation, a grant size for the allocation, and a header error correction (HEC) for the allocation.
Abstract: An apparatus comprising a node comprising an access controller (AC) and an authentication, authorization and accounting (AAA) proxy (AAA-P), wherein the AC is configured to manage authentication for a user equipment (UE), and wherein the AAA-P is configured to exchange authentication information related to the UE with an AAA server. Included is a network component comprising at least one processor configured to implement a method comprising establishing a first tunnel with a home gateway (HG), wherein the HG communicates wirelessly with a UE, and establishing a second tunnel between the UE and a Network Access Server (NAS). Also included is a network component comprising at least one processor configured to implement a method comprising receiving a Pairwise Master Key (PMK) from an AAA mediator (AAA-M), and authenticating a UE using the PMK.
Abstract: An embodiment power converter package comprises a semiconductor die, an output inductor, a plurality of input capacitors and output capacitors. The semiconductor die, the output inductor and the plurality of capacitors are mounted on a lead frame and connected one to another through various pads on the lead frame. The semiconductor die comprises a high side switch, a low side switch and a driver. The power converter package is electrically coupled to an external pulse width modulation controller through a variety of input and output pads.
Abstract: An apparatus comprising a plurality of receivers each configured to receive a plurality of polarized signals, a voltage control oscillator (VCO) coupled to the receivers and configured to control timing and sampling frequency of the polarized signals, and a signal processing component coupled to the receivers and configured to update a plurality of weighted linear factors, wherein the polarized signals and the weighted linear factors are used to obtain a combined signal, and wherein the weighted linear factors are updated using a real part or an imaginary part of the combined signal. Included is a method comprising using a linear factor to combine a plurality of polarized optical signals to provide time recovery information, and updating the linear factor using a combination of the polarized optical signals.
Abstract: A system and method for uplink inter cell interference coordination and multi-user multiple input, multiple output in a wireless access system are provided. A method for providing uplink inter cell interference coordination in a wireless access system includes categorizing users the wireless access system, selecting a resource allocation plan based on the categorized users, allocating resources to the users in the wireless access system based on the selected resource allocation plan, and receiving transmissions from the users.
Abstract: An apparatus comprising a mobile node (MN) comprising a first radio interface and at least one second radio interface, wherein a point of service (PoS) is configured to communicate with the MN via the first radio interface to proxy the second interface, and wherein the first interface is an active interface and the second interface is a powered off interface. Also included is an apparatus comprising at least one processor configured to implement a method comprising setting an interface between a MN and a network in a powered off mode, tracking the mobility of the MN on behalf of the network when the interface is powered off, and waking up the interface when a call arrives in the network for the interface.
Type:
Grant
Filed:
December 22, 2009
Date of Patent:
December 11, 2012
Assignee:
Futurewei Technologies, Inc.
Inventors:
Behcet Sarikaya, Yangsong Xia, H. Anthony Chan
Abstract: System and method for dynamic resource allocation in wireless communications networks. A method for dynamically allocating resources of a contention channel comprises computing an expected delay for a transmission made by a user over the contention channel, determining a target probability of collision from the expected delay, computing an allocation of resources of the contention channel using the target probability of collision, and allocating resources of the contention channel using the computed allocation of resources.
Abstract: A system and method for temporarily reconfiguring a communications system to provide selected services are provided. A method for temporarily providing selected services by a cell of a communications system includes receiving a first command, changing an operating mode of the cell responsive to the first command, and indicating the operating mode to a first selected device and a first non-selected device. The cell operating in the operating mode serves the first selected device based on the first command, and the first non-selected device is a selected device prior to the change in the operating mode and is capable of accessing the cell before the cell changes the operating mode responsive to the first command and is not capable of accessing the cell after the cell changes the operating mode responsive to the first command.
Abstract: An apparatus comprising a plurality of switches coupled to a plurality of corresponding colorless laser transmitters, an odd channel coupler coupled to each of the switches, an even channel coupler coupled to each of the switches, and an interleaver coupled to the odd channel coupler and the even channel coupler. Also disclosed is an apparatus comprising a coupler coupled to a plurality of colorless laser transmitters, a first interleaver coupled to the coupler, and a second interleaver coupled to the first interleaver. Also disclosed is an apparatus comprising an odd channel coupler coupled to a plurality of first laser transmitters, an even channel coupler coupled to a plurality of second laser transmitters, and an interleaver coupled to the odd channel coupler and the even channel coupler.
Abstract: Managing radio resources and power for OFDMA uplinks is disclosed in which a threshold transmission rate for the reverse link is used by base stations to compare against the achievable reverse link transmission rate of a particular AT within the sector serviced by the base station. When the calculated rate is higher than the threshold rate, the base station allocates maximum power to the AT. Otherwise, when the calculated rate is lower than the threshold rate, zero power is allocated to the AT.
Abstract: An internet router is implemented as a network fabric of fabric routers and links. The internet router receives data packets from trunk lines or other internet links and analyzes header information in the data packets to route the data packets to output internet links. The line interface also analyzes the header to define a fabric path through the router fabric. The internet packets are broken into flits which are transferred through the router according to a wormhole routing protocol. Flits are stored in fabric routers at storage locations assigned to virtual channels corresponding to destination internet links. The virtual channels and links within the fabric define virtual networks in which congestion in one virtual network is substantially nonblocking to data flow through other virtual networks. Arbitration is performed at each fabric router to assign packets to virtual channels and to assign virtual channels to output fabric links.
Type:
Grant
Filed:
February 9, 2007
Date of Patent:
December 4, 2012
Assignee:
Futurewei Technologies, Inc.
Inventors:
William J. Dally, Philip P. Carvey, Larry R. Dennison, P. Allen King
Abstract: A system and method for selecting a gateway upon mobile station initial network entry is provided. A method for controller operations includes determining that a criterion for gateway selection for a mobile station is met, selecting a gateway based on an allocation vector, and transmitting an allocation request to the selected gateway. The selecting being based on an allocation vector of selection probabilities for a plurality of gateways. The method also includes receiving a response message from the selected gateway, completing an initial network entry procedure if the response message indicates that the selected gateway will support the mobile station, and performing an alternate selection procedure if the response message indicates that the selected gateway will not support the mobile station.
Abstract: System and method for exploiting spatial spectrum holes (SSH) in the time/spectrum/location of wireless resources. A method comprises setting a directional antenna to a first transmission direction, determining a state of a spectrum band in the first transmission direction, transmitting information in the first transmission direction to the receiver in response to determining that the spectrum band state is idle and that the receiver lies within a coverage area of a transmitter, and transmitting the information in the first transmission direction to a first relay in response to determining that the spectrum band state is idle and that the receiver lies without the coverage area of the transmitter.
Type:
Grant
Filed:
October 10, 2008
Date of Patent:
December 4, 2012
Assignee:
FutureWei Technologies, Inc.
Inventors:
Xiangwei Zhou, Young Hoon Kwon, Anthony C. K. Soong
Abstract: A system and method for digital communications with unbalanced codebooks is provided. A transmitter includes a channel encoder that generates an output codeword from an information vector provided by an information input, and a modulator/transmitter circuit coupled to the channel encoder. The modulator/transmitter circuit prepares the output codeword for transmission over a physical channel. The channel encoder encodes the information vector into an intermediate codeword using a first code and shapes the intermediate codeword into the output codeword having a desired distribution.