ZTE (USA) INC. Patent applications |
Patent application number | Title | Published |
20160021621 | INTERFERENCE MANAGEMENT IN THE HETEROGENEOUS NETWORK - A method of conveying transmit power information from a first cell to a second cell is provided. The first cell prepares a data structure including a plurality of elements, each element corresponding to a respective downlink subframe in a radio frame associated with the first cell and its value corresponding a respective minimum transmit power reduction level promised by the first cell during the downlink subframe. The first cell then transmits the data structure to the second cell via a predefined interface. The second cell processes the data structure and schedules one or more user equipments in one or more downlink subframes of the radio frame in Evolved Packet accordance with the data structure. | 01-21-2016 |
20150373124 | COMMUNICATION BETWEEN MACHINE-TO-MACHINE SERVICE LAYERS AND TRANSPORT NETWORK - Techniques for facilitating Machine-to-Machine (M2M) communications include providing an M2M system that implements one or more pre-defined M2M Application Programming Interface (API) profiles, providing a network interface for the M2M system, receiving a profile query over the network interface, and responding with information about the implemented one or more-pre-defined M2M API profiles. | 12-24-2015 |
20150033276 | METHOD AND SYSTEM FOR MANAGING MULTIMEDIA QUALITY OF EXPERIENCE IN A TRANSPORT-INDEPENDENT FASHION - Systems and methods are disclosed which adjust virtualized resources for delivery of a real-time multi-media session to a user terminal. Based on resource parameters, setting resource requirements, the user terminal sets resource requirements for delivery of the real-time multi-media session. The user terminal allocates the resources in accordance with the set resource requirements. The user terminal then continually determines if the distributed resources are sufficient for a desired quality of experience. If the distributed resources are not sufficient, at the user terminal adjusts the allocation of resources by procuring resources from a management of resources (MRD)/resources pre-positioning policy (RPP) database, to maintain the desired quality of experience. The resource parameters may include historic trends of resource allocation of delivery of audio, video, and/or text-messaging, current resource allocation trends, optimization criteria, traffic signature generation, and the like. | 01-29-2015 |
20150029996 | METHOD AND SYSTEM FOR PHYSICAL DOWNLINK CONTROL CHANNEL MULTIPLEXING - Enhanced physical downlink control channel are multiplexed with physical downlink data channel in frequency division multiplexing (FDM), or in frequency division multiplexing (FDM)+time division multiplexing (TDM). FDM mode applies to users that have only UL grants in that subframe. UL grants of different users are cross-interleaved and transmitted over the entire physical resource blocks (both slots) in FDM. Frequency resources for cross-interleaved UL grants are distributed. TDM+FDM applies to users that have both DL and UL grants, or have only DL grant in that subframe. DL/UL grant (maybe mixed) is transmitted only in the first slot of physical resource blocks in TDM+FDM, where the second slots in those resource blocks can be used for those users' downlink data transmission. | 01-29-2015 |
20150023667 | SYSTEM AND METHOD FOR COHERENT DETECTION WITH DIGITAL SIGNAL PROCESSION - Aspects of the present invention include apparatus and methods for transmitting and receiving signals in communication systems. A multicarrier generator generates a multicarrier signal. An optical demultiplexer separates the multicarrier signal into separate multicarrier signals. At least one QPSK modulator modulates signals from the separate multicarrier signals. An optical multiplexer combines the QPSK modulated signals into a multiplexed signal. The multiplexed signal is then transmitted. | 01-22-2015 |
20150010102 | COOPERATIVE MULTI-POINT MODULATION (COMP-M) : METHOD AND APPARATUS USING BASE STATION MODULATION WITH COOPERATIVE MULTI-POINT TRANSMITTING AND RECEIVING IN A CELLULAR SYSTEM - A Cooperative Multi-point transmitting and receiving apparatuses using base station modulation method in a wireless system are provided. | 01-08-2015 |
20140369398 | DIGITAL FILTER, PARTIAL RESPONSE EQUALIZER, AND DIGITAL COHERENT RECEIVER DEVICE AND METHOD - Aspects of the present invention include devices and methods for receiving signals in communication systems. A partial response equalizer includes a full response linear equalizing device for equalizing a received signal; and a partial response post filter for post filtering the equalized signal. Aspects of the present invention devices and methods for coherently receiving signals in an optical communication system. A receiver front end converts a received partial response optical signal to a partial response digital signal. An equalizing device equalizes the pre-filtered full response digital signal. A full response carrier recovery device performs carrier recovery of the signal equalized by the equalizing device. A post-filter filters the signal having undergone carrier recovery by the full response carrier recovery device. | 12-18-2014 |
20140362959 | SINGLE CABLE INCLUDING MULTIPLE INTERCONNECTIONS BETWEEN TWO RADIO UNITS FOR CROSS POLARIZATION INTERFERENCE CANCELLATION - An outdoor radio communication system comprises a first radio unit, a second radio unit, and a single cable coupling the first radio unit to the second radio unit. Each radio unit includes a downconverter, a radio processor that is communicatively coupled to the downconverter, and a XPIC module. The cable further includes a first twisted-pair of wires for communicatively coupling the first downconverter to the second XPIC module and a second twisted-pair of wires for communicatively coupling the second downconverter to the first XPIC module. The first XPIC module generates a first reference signal using a signal from the second downconverter to cancel cross-polarization interference in an output signal of the first radio processor. Similarly, the second XPIC module generates a second reference signal using a signal from the first downconverter to cancel cross-polarization interference in an output signal of the second radio processor. | 12-11-2014 |
20140356002 | FLATTENED OPTICAL FREQUENCY-LOCKED MULTI-CARRIER GENERATION BY ONE DML AND ONE PHASE MODULATOR - The disclosure relates to a method for optical frequency-locked multi-carrier generation based on one directly-modulated laser (DML) and one phase modulator (PM) in cascade driven by sinusoidal waveform (at the same or different frequency). When the DML and PM is driven by the same frequency RF signal at 12.5 GHz, adopting this method, 16 optical subcarriers with 12.5-GHz frequency spacing are generated with power difference less than 3 dB. When the DML and PM is driven by the different frequency with DML at 12.5 Ghz and PM at 25 GHz, over 24 optical subcarriers are generated with 12.5-GHz frequency spacing and amplitude fluctuation less than 3 dB. The number of the generated optical subcarriers can be further increased when the driving power for the DML is increased. | 12-04-2014 |
20140348036 | POWER CONTROL OF PHYSICAL UPLINK CONTROL CHANNEL FOR LONG TERM EVOLUTION - ADVANCED TIME DIVISION DUPLEX - Methods and apparatus are directed towards controlling power of physical uplink control channel (PUCCH) format 1b for advanced time division duplex. If HARQ-ACK bundling is not applied, then n | 11-27-2014 |
20140341236 | METHOD AND APPARATUSES FOR ALGORITHM ON QAM COHERENT OPTICAL DETECTION - Blind polarization demultiplexing algorithms based on complex independent component analysis (ICA) by negentropy maximization for quadrature amplitude modulation (QAM) coherent optical systems are disclosed. The polarization demultiplexing is achieved by maximizing the signal's non-Gaussianity measured by the information theoretic quantity of negentropy. An adaptive gradient optimization algorithm and a Quasi-Newton algorithm with accelerated convergence are employed to maximize the negentropy. Certain approximate nonlinear functions can be substitutes for the negentropy which is strictly derived from the probability density function (PDF) of the received noisy QAM signal with phase noise, and this reduces the computational complexity. The numerical simulation and experimental results of polarization division multiplexing (PDM)-quadrature phase shift keying (QPSK) and PDM-16QAM reveal that the ICA demultiplexing algorithms are feasible and effective in coherent systems and the simplified ones can also achieve equivalent performance. | 11-20-2014 |
20140325319 | STATISTICS ADAPTIVE SOFT DECISION FORWARD ERROR CORRECTION IN DIGITAL COMMUNICATION - A digital communication receiver uses a maximum likelihood sequence estimation stage to recover symbols from digitized sample values of a received signal. A probability density function is calculated and used to improve a soft decision forward error correction calculation. The results of error decoding, which represent error corrected data bits, are further used to improve the probability density function calculation. | 10-30-2014 |
20140314368 | DIRECTLY-MODULATED MULTI-POLARIZATION OPTICAL TRANSMITTERS - The present invention relates to optical transmitters, transceivers, and transponders used for transmission of information or data in any form through a physical medium dependent (PMD) network. The speed of such networks depends, in part, on the density of information that can be transmitted through the physical medium. Optical transmitters or transceivers can be used to transmit multiple independent signals simultaneously through the same medium using different directions or axes of polarization, where the difference in the directions or axes of polarization can be used to distinguish the multiple signals at the receiver. In this invention, we use a master laser (l | 10-23-2014 |
20140294385 | MITIGATING ROGUE OPTICAL NETWORK UNIT (ONU) BEHAVIOR IN A PASSIVE OPTICAL NETWORK (PON) - Techniques, apparatus and systems are described for an optical line terminal (OLT) operable in a passive optical network (PON) system to isolate and mitigate the behavior of a rogue optical network unit (ONU) that transmits optical power up the optical distribution network (ODN). In one aspect, a method of mitigating the behavior of rogue ONUs can include detecting the presence of a rogue ONU on the PON system, and transmitting, based on the detection, a message addressed exclusively to the ONUs that have not yet been discovered or identified by the OLT. | 10-02-2014 |
20140289589 | SOFT MAXIMUM LIKELIHOOD SEQUENCE ESTIMATION IN DIGITAL COMMUNICATION - A digital communication receiver generates soft decision values at the output of a maximum likelihood sequence estimator module. The values are fed into a following forward error correction module that uses the soft-decision input signal to improve error correction performance. The disclosed techniques can be used for receiving optical signals in an optical communication network. | 09-25-2014 |
20140286237 | METHODS AND APPARATUS FOR DETERMINING ADDRESS OF A MACHINE TYPE COMMUNICATION DEVICE IN A WIRELESS NETWORK - Techniques, systems and apparatus are described for implementing a framework for an address determination technique for IPv4 addressing of MTC devices behind NATs in wireless networks. In one aspect, a method includes determining address for machine type communications (MTC) devices behind Network Address Translators (NATs) in a wireless communication network. The determining includes assigning a private address to an MTC device attached to the wireless communication network, and determining mapped public transport address. | 09-25-2014 |
20140255034 | METHOD AND SYSTEM FOR WIRELESS TRANSMISSION OF OF ANALOG SIGNALS BETWEEN ANTENNA AND BASEBAND PROCESSOR - A wireless communication method and system utilizing optical transmission technology to transport analog signals directly to/from the antenna, without ADC/DAC, so that the optical transport facility can be utilized more efficiently and there is no need to adapt the digital data rate to the transport capacity, as the analog transmission is independent of the digits buried in the given spectrum. Complicated operation is moved into a centralized location, so that a cell site (base station) is light and flexible. In contrast, the standardized approach in the industry, which involves digitized interface between the antenna and the control processor, hits capacity limits of the current transport technology. | 09-11-2014 |
20140243043 | UNIVERSAL SMALL CELL BACKHAUL RADIO ARCHITECTURE - A dual-band small cell backhaul radio comprises a first communication channel including multiple non-line of sight (NLOS) Sub-6 GHz antennas, a second communication channel including a line of sight (LOS) 60 GHz or E-band antenna, circuitry for managing the first communication channel and the second communication channel, and an interface for providing data and power from a small cell to the first communication channel and the second communication channel, respectively. | 08-28-2014 |
20140233966 | RECOVERING DATA FROM QUADRATURE PHASE SHIFT KEYING MODULATED OPTICAL SIGNALS - Systems, devices and techniques for processing received QPSK modulated optical signals include sampling the received signal at twice the baud rate, thereby producing samples that are then processed as 9-QAM symbols using a decision directed least squares optimization method. Data bits are then recovered from the resulting symbol estimates. The received optical signal may also include dual polarized signals for increased bandwidth capacity. | 08-21-2014 |
20140233964 | METHOD FOR GENERATING AN OPTIMIZED RETURN-TO-ZERO PULSE SHAPE AGAINST AGGRESSIVE OPTICAL FILTERING AND AN OPTICAL TRANSMITTER IMPLEMENTING THE METHOD - An optical transmitter comprises: first and second sets of optical in-phase and quadrature modulators; an integrable tunable laser assembly; a first polarization beam splitter that is configured to divide the continuous-waveform optical signal into a x-polarized tributary and a y-polarized tributary, each of the x-polarized tributary and the y-polarized tributary is modulated by one of the first and second sets of optical in-phase and quadrature modulators in accordance with the two respective input signals; a second polarization beam splitter that is configured to combine the modulated x-polarized tributary and the modulated y-polarized tributary into one optical signal; and an optical modulator that is configured to modulate the combined optical signal using a driving voltage, wherein the driving voltage has a bias point that is reduced by a predefined offset from a predefined reference voltage level. | 08-21-2014 |
20140215466 | METHOD AND SYSTEM FOR DETERMINING REQUIREMENTS FOR INTERFACE BETWEEN VIRTUAL NETWORK ELEMENTS AND NETWORK HYPERVISOR FOR SEAMLESS (DISTRIBUTED) VIRTUAL NETWORK RESOURCES MANAGEMENT - A method for determining and then abstracting the requirements for the interface between virtual network entity or element (VNE) and Network Hypervisor (NHV) is described. The abstraction helps creation of an open and interoperable VNE-NHV environment because suitable interworking Apps for interface can now be easily invoked on the basis of instantaneous demands from the services. Automation of configuration together with assignment of VNEs mitigates the impact of limitation of resources in any network. Once an NHV is created and the VNEs—irrespective of their domains—are attached to it, the VNEs can be utilized by the services seamlessly. | 07-31-2014 |
20140212140 | METHOD AND APPARATUS FOR GENERATION OF FREQUENCY- AND PHASE-LOCKED SUBCARRIER - We describe and demonstrate a novel and simple scheme to generate flattened optical subcarriers using only phase modulators driven by single frequency fundamental sinusoidal sources. 160.8 Gb/s PM-QPSK experiment over a single subcarrier has been demonstrated. | 07-31-2014 |
20140211838 | METHOD AND APPARATUS FOR ALGORITHM ON FLEXIBLE SQUARE-QAM COHERENT DETECTION - In Software defined elastic optical networks, modulation format and constellation size may be flexibly modified. As a result, digital signal processing (DSP) algorithm should be compatible with different modulation schemes or readily reconfigurable at the optical coherent receiver. Therefore we propose a novel cascaded adaptive blind equalizers based on decision-directed modified least mean square (DD-MLMS) algorithm for polarization separation and carrier phase recovery. The algorithm is square quadrature amplitude modulation (QAM) independent so that it could be applied in the elastic optical systems. The 28 Gbaud polarization multiplexing quadrature phase shift keying (PM-QPSK) and PM-16QAM back-to-back transmission is demonstrated. The results show that the performance is very close to the general algorithm but with a benefit of the reduced operation complexity. We transmit the 8×240 Gb/s PM-16QAM wavelength division multiplexing (WDM) signal over 1200 km standard single mode fiber (SSMF) based on the proposed blind equalization with a bit error ratio (BER) less than 2×10−2. | 07-31-2014 |
20140203844 | SYSTEM OF PROVIDING MULTIPLE VOLTAGE REFERENCES TO A RADIO-FREQUENCY DEVICE USING A SINGLE ANALOG LINE - A system includes a control board, a controlled board, and a connector connecting the control board to the controlled board. The control board includes a processing unit that configures the reference voltage signals, a non-volatile memory that stores information about the reference voltage signals, and a DAC that outputs the reference voltage signals in accordance with instructions from the processing unit. The controlled board includes: first and second voltage reference devices that receive first and second reference voltage signals, respectively, and a radio-frequency device that receives a first frequency signal and a second frequency signal and outputs a third frequency signal based on one of the first and second reference voltage signals. The connector includes an analog line for providing reference voltage signals to the first and second voltage reference devices and a digital line for providing control signals to activate one of the first and second voltage reference devices. | 07-24-2014 |
20140199076 | DIGITAL NON-LINEAR COMPENSATION IN OPTICAL COMMUNICATION SYSTEMS - Systems, devices and techniques for processing an optical signal transmitted from a source over a transmission medium having a length L and performing compensation of non-linear distortions include formulating the compensation as a digital back propagation algorithm by logically dividing the length L into N steps and compensating non-linear distortions for each step as a function of an attenuation adjusting constant parameter that can be selected from a range between 0.3 and 0.7. | 07-17-2014 |
20140199073 | CHANNEL ESTIMATION IN OPTICAL COMMUNICATION BASED ON ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING - Techniques for optical communications using optical orthogonal frequency division multiplexing (OFDM) include operating a signal transmitter to modulate laser light to produce modulated light that carries, in optical domain, OFDM subcarriers for carrying communication information, without a frequency guard band between the OFDM subcarriers, and pilot subcarriers for channel estimation at a signal receiver, each pilot subcarrier being free of communication information, and controlling optical power of the pilot subcarriers to vary with optical frequencies of the pilot subcarriers so that optical power of a pilot subcarrier at a high optical frequency is different from optical power of another pilot subcarrier at a low optical frequency. | 07-17-2014 |
20140185580 | INTEGRATED WIRELESS LOCAL AREA NETWORK FOR SPECTRUM SHARING - A wireless communication system includes a database that holds spectral usage and availability information, an access point that operates to provide wireless services from a plurality of service operators and a gateway that receives a wireless spectrum allocation request from a service operator, determines spectrum availability by consulting the database, responds to the service operator with a grant or a denial based on the determined spectrum availability, and controls the access point to provide wireless service according to the response to the service operator. | 07-03-2014 |
20140181309 | METHOD AND SYSTEM FOR CLOUD-BASED IDENTITY MANAGEMENT (C-IDM) IMPLEMENTATION - A virtual IDM server is disclosed. In one embodiment, the server utilizes a plurality of shared resources residing on a plurality of computers in one or more computer networks. The server also controls the allocation and usage of said shared resources on a real-time basis. The server further comprises: one or more APIs for receiving messages related to IDM service requests; and one or more APIs for accessing a plurality of said shared resources on a real-time basis during processing of said IDM service requests. | 06-26-2014 |
20140177690 | LINK AGGREGATION SYSTEM, PROTECTION SYSTEM, AND CROSS POLARIZATION INTERFERENCE CANCELLATION APPLICATIONS FOR ALL OUTDOOR RADIOS USING WIRELESS CHANNELS OPERATING AT A LICENSING-FREE 60 GHZ BAND - System and method for implementing a link aggregation system, a protection system, and an XPIC application for an all outdoor radios system using a wireless channel operating at a license-free 60 GHz band are provided. The license-free 60 GHz band offers a wide frequency bandwidth that can support a high speed data rate up to 10 Gbps in full duplex mode, frequency reuse, and high security due to its fast oxygen absorption at 60 GHz. As such, a wireless channel operating at the license-free 60 GHz band may be used for a link aggregation system to support wireless local area network (LAN) connections with the speed up to 7 Gbps. In addition, a wireless connection operating at the license-free 60 GHz band may be used to support both XPIC application and protection system for all outdoor radios to achieve a transmission speed of up to 10 Gbps in a full duplex mode. | 06-26-2014 |
20140133531 | DYNAMIC DIGITAL PREDISTORTION FOR A MICROWAVE RADIO SYSTEM - A method for performing digital predistortion to a microwave radio transceiver in response to an increase/decrease of transmit power level is disclosed. If the new transmit power level is higher than the current transmit power level, a set of digital predistortion (DPD) coefficients is applied to the transceiver before the issuance of a transmit power level increase command to the transceiver. Otherwise, a transmit power level decrease command is issued to the transceiver before the application of the set of DPD coefficients to the transceiver. Determining the set of DPD coefficients for the transceiver involves two stages: (i) calibrating the transceiver at a room temperature under predefined conditions and generating a DPD lookup table including DPD coefficients at a plurality of predefined temperatures other than the room temperature and (ii) determining the set of DPD coefficients for a given set of operating conditions using entries in the DPD lookup table. | 05-15-2014 |
20140129839 | INTERNET PROTOCOL MAPPING RESOLUTION IN FIXED MOBILE CONVERGENCE NETWORKS - Techniques for facilitating operation of a communication device having a first internet protocol (IP) address in a first network and a second IP address in a second network include detecting a presence of a network address translation (NAT) table; implementing, when the NAT table is present, a message exchange protocol to obtain a mapping between the first IP address and the second IP address; and reporting, in a communication message, the mapping between the first IP address and the second IP address. In one operational scenario, the first network is a 3 GPP network and the second network is a broadband fixed network such as a DSL or a cable modem network | 05-08-2014 |
20140125425 | COMPACT MICROSTRIP TO WAVEGUIDE DUAL COUPLER TRANSITION - A compact microstrip to waveguide dual coupler transition includes a multilayer printed circuit board configured with a rectangular region on an upper surface of the multilayer printed circuit board, wherein the rectangular region has a pair of long edges and a pair of short edges; a transition probe configured on the upper surface of the multilayer printed circuit board, wherein a terminal of the transition probe extends into the rectangular region through a long edge of the rectangular region, and another terminal of the transition probe is electrically connected to a power amplifier; a first coupler probe configured on the upper surface of the multilayer printed circuit board, wherein a terminal of the first coupler probe extends into the rectangular region; and a second coupler probe configured on the upper surface of the multilayer printed circuit board, wherein a terminal of the second coupler probe extends into the rectangular region. | 05-08-2014 |
20140099109 | SERVICE SENSITIVE RESILIENT IPoWDM NETWORK AND METHOD OF OPERATION - A network and method of operating the network, the network comprising a transport layer that includes first and second disjoint but topologically substantially identical subnetworks A and B, each having a plurality of optical switch nodes and/or reconfigurable optical add-drop multiplexer (ROADM) nodes, and a routing layer wherein each router is coupled to at least one node in A and at least one node in B. The network is operable to provide a plurality of classes of services providing corresponding Quality of Service, and the routing layer or routing/transport interface can differentiate between traffic having different classes of service and schedule the traffic based on its service class. In the case either of the subnetworks becomes inoperable, all of the traffic is transferred to the other subnetwork, and the QoS of the classes of service is maintained by scheduling traffic to increase the delay experienced by delay-tolerant traffic. | 04-10-2014 |
20140099108 | SYSTEM AND METHOD FOR HETERODYNE COHERENT DETECTION WITH OPTIMAL OFFSET - A heterodyne optical signal detector and method performed thereby, the signal detector including an optical signal spectrum shaper operable to modify the shape of the frequency spectrum of a received optical signal, a laser local oscillator (LO), and polarization beam splitters (PBSs) to divide the signal and the LO into orthogonal components, waveguides in which intermediate frequency (IF) signals are formed, balanced photodetectors (BPDs) arranged to receive the IF signals and operable to convert the IF signals into electric signals, and analog to digital converters (ADCs) that digitize the electric signals. In embodiments, the ADCs have a predetermined bandwidth, the received signal has a spectrum which, if not shaped, would produce IF signals with a bandwidth greater than that of the ADCs, the spectrum shaper modifies the received signal spectrum to produce IF signals that have a bandwidth substantially equal to half the bandwidth of the ADCs, the laser frequency is adjusted produce IF signals in the waveguides having a frequency spectrum centered at the midpoint of the ADCs' bandwidth. | 04-10-2014 |
20140056167 | METHOD AND SYSTEM FOR SPATIAL CHANNEL STATE INFORMATION FEEDBACK FOR MULTIPLE-INPUT-MULTIPLE-OUTPUT (MIMO) - A method and system for feed-back of spatial CSI of an entire spatial channel that connects receive antennas at user equipment and multiple transmit antennas. Spatial discrimination information is provided as feed-back at the transmitter and the receiver connecting the user equipment and a cell. With the user equipment providing the transmitter and the receiver side spatial discrimination information of each sub-channel as feedback, the composite spatial CSI over multiple segments of transmit antennas can be determined. The user equipment may have one or multiple receiving antennas, and the spatial discrimination information can be subband short-term. In some embodiments, the spatial discrimination information at the receiver side is derived from the actual spatial channel while receiver implementation is taken into account. The spatial discrimination information at the transmitter and at the receiver can be can be provided as feedback using codebooks for MIMO precoding. | 02-27-2014 |
20140050233 | METHOD AND APPARATUS FOR HETERODYNE COHERENT DETECTION - A simplified coherent receiver based on heterodyne detection with only two balanced photo detectors (PD) and two analog-to-digital converters (ADC) is disclosed. The polarization diversity hybrid can be simplified relative to the conventional one. The detected intermediate frequency signals are first down converted to baseband with I/Q separation. | 02-20-2014 |
20140050149 | OFDM/OFDMA FRAME STRUCTURE FOR COMMUNICATION SYSTEMS - An OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM/OFDMA frame structure technology comprises a variable length sub-frame structure with efficiently sized cyclic prefixes and efficient transition gap durations operable to effectively utilize OFDM/OFDMA bandwidth. Furthermore, the frame structure provides compatibility with multiple wireless communication systems. An uplink frame structure and a downlink frame structure are provided. | 02-20-2014 |
20140050125 | METHOD FOR DYNAMIC CHANGE OF DOWNLINK/UPLINK ALLOCATION IN LTE-TDD SYSTEMS - A method of dynamically adjusting the downlink-uplink allocation in a TDD system, includes: transmitting a downlink-uplink allocation signal to at least one user device, wherein the allocation signals specifies a set of flexible subframes within a radio frame that can be flexibly configured as either downlink or uplink subframes; determining if a HARQ feedback signal falls within a flexible subframe; and re-assigning the HARQ feedback signal to be transmitted in a non-flexible subframe within the radio frame. | 02-20-2014 |
20140022742 | COMPACT LOW LOSS TRANSITION WITH AN INTEGRATED COUPLER - A compact transition structure includes a printed circuit board, wherein there is a rectangular region on one side of the printed circuit board and the rectangular region has a pair of long edges and a pair of short edges; a transition probe on the one side of the printed circuit board, wherein the transition probe extends into the rectangular region through a long edge of the rectangular region and has a terminal near a center of the rectangular region; and a coupler probe on the one side the printed circuit board, wherein the coupler probe extends into the rectangular region through a short edge of the rectangular region and has a terminal before the center of the rectangular region such that the coupler probe is electrically insulated from the transition probe. | 01-23-2014 |
20140019622 | SYSTEM AND METHOD FOR CLOUD-BASED SESSION BORDER GATEWAY IMPLEMENTATION - A system and method for implementing distributed virtual-resource-based (cloud-based) session border gateway (SBG) functions are presented. Because no dedicated physical resources need to be committed for implementation of the SBG features and functions, as in traditional border gateway functions implementations, the invention has significant cost, resource allocation, integration, and operational advantages over traditional methods. In addition, new features and functions can be easily developed and integrated with the Cloud-Based SBG (CB-SBG) implementations very cost-effectively. | 01-16-2014 |
20130308531 | CO-EXISTENCE SUPPORT FOR 3GPP DEVICE AND FIXED DEVICE BEARER TRANSPORT OVER FIXED BROADBAND ACCESS NETWORK - A communications system includes a trusted wireless access gateway, a broadband network gateway and a user equipment. The user equipment is configured to transmit an attachment request. The broadband network gateway is configured to receive the attachment request from the user equipment and determine whether the attachment request is an extensible authentication protocol (EAP) authentication request and forward to the trusted wireless gateway the attachment request when is determined that the attachment request is an EAP authentication request. The trusted wireless access gateway is configured to fulfill the attachment request based on a type of the attachment request. | 11-21-2013 |
20130294783 | METHOD AND APPARATUS OF ALGORITHM FOR COHERENT RECEIVERS WITH M-QAM MODULATION FORMAT - An improved Eighth-Order Statistics (EOS) blind phase recovery method is proposed for high-order coherent modulation formats. The method combining EOS blind phase estimate with maximum-likelihood (ML) carrier phase estimate uses multi-stage feed-forward carrier phase recovery algorithm. Experimental results show that the proposed new algorithm can reduce the required computational effort by more than a factor of 3 for 16-QAM system. | 11-07-2013 |
20130289914 | FLEXIBLE EVALUATION OF FREE SPACE OVER THE AIR MEASUREMENT UNCERTAINTY METHOD AND APPARATUS - Methods are directed towards determining a total measurement uncertainty for LME and LEE UEs. Methods include representing the at least one quantity subject to measurement as a function of at least one physically observably quantity. Methods also include obtaining a value of the at least one quantity subject to measurement. Based on the obtained values, values of the sources of uncertainty are derived. | 10-31-2013 |
20130267269 | NETWORK ASSISTED FAST OPEN LOOP POWER CONTROL ADJUSTMENT - Techniques, devices, and systems that include mechanisms for network assisted fast adjustment of open loop power control mechanism. monitoring reverse link channels include calculating, based on results of the monitoring, an initial power adjustment value for controlling power of a wireless device in communication with the network and broadcasting the initial power adjustment value over a forward link control channel at least as often as a paging channel transmission cycle over the forward link control channel. | 10-10-2013 |
20130259491 | SYSTEM AND METHOD FOR IMPROVING RECEIVER SENSITIVITY OF A DD-OFDM SYSTEM WITHOUT USING FREQUENCY GUARD BAND - A system and method for improving receiver sensitivity of an DD-OFDM system without using frequency guard band. The method having: interleaving input data to the DD-OFDM system to generate interleaved data; encoding the input data with a first recursive systematic convolutional code to generate a first recursive systematic convolutional encoded data; encoding the interleaved data with a second recursive systematic convolutional code to generate a second recursive systematic convolutional encoded data; puncturing the first recursive systematic convolutional encoded data and the second recursive systematic convolutional encoded data to generate a parity sequence; and combining the input data with the parity sequence to generate coded DD-OFDM data; wherein the parity sequence is generated by using different puncturing rates for different OFDM subcarriers, so as to obtain higher spectral efficiency. | 10-03-2013 |
20130254868 | SYSTEM AND METHOD FOR MULTIMEDIA MULTI-PARTY PEERING (M2P2) - Embodiments of the present invention pertain to systems and methods for implementing a platform to support multimedia services peering with multiple independent competing parties, such as carriers or service providers. More particularly, certain embodiments of the invention pertain to deployment of the same physical platform or device by using soft- and hard-virtual separation of resources. Each party is allowed to retain full control over its logical resources space, even when a party is not using any of its resources. However, the multimedia multi-party peering provider maintains complete overview of the utilization of resources by each party via an active monitoring and enforcing method. | 09-26-2013 |
20130252578 | SINGLE OPERATOR MANAGED POLICY AND CHARGING FUNCTION FOR FIXED MOBILE CONVERGENCE NETWORKS - Systems, devices and techniques for policy and charging rule function that is responsive to the access network used by a user equipment include receiving policy enforcement information for operation of a user equipment (UE) from a policy and charging rule function-plus (PCRF+) in the FMC system; the policy enforcement information being based on an access technology used by the UE and enforcing a service policy based on the received policy enforcement information. | 09-26-2013 |
20130242734 | REVERSE LINK RELIABILITY THROUGH RE-ASSEMBLING MULTIPLE PARTIALLY DECODED CONNECTIONLESS FRAMES IN WIRELESS COMMUNICATION NETWORKS - Techniques, devices, and systems that include mechanisms for connectionless communications in wireless communication networks or systems include a base station controller, a plurality of base stations and a mobile station. The base station controller combines connectionless transmissions received by the base stations, including decoded and un-decoded frames, into a complete message. | 09-19-2013 |
20130235819 | Sequence Initialization for Demodulation Reference Signal - A new sequence initialization for demodulation reference signal (DMRS) sequence design used in the LTE-A system is provided. In some implementations, the modulo-2 addition of n | 09-12-2013 |
20130223843 | NYQUIST WAVELENGTH DIVISION MULTIPLEXING SYSTEM - Aspects of the present invention include apparatus and methods for transmitting and receiving signals in communication systems. A beam splitter splits an optical signal into a plurality of signals. At least one QPSK modulator generates a plurality of QPSK modulated signals from the plurality of signals. An optical multiplexer combines the plurality of QPSK modulated signals into a multiplexed signal. The multiplexed signal is then transmitted. | 08-29-2013 |
20130210414 | FIXED LOCATION REGISTRATION - Systems, devices and techniques for machine to machine (M2M) communications include optimizing performance of an M2M network based on knowledge about a fixed, or non-mobile, operation of an M2M service. In various embodiments, paging operation, direct channel assignment operation and timer based registration are optimized. The fixed operation may be communicated by a user device receiving the service to a network server providing the service. | 08-15-2013 |
20130208678 | METHODS AND SYSTEMS FOR CSI-RS RESOURCE ALLOCATION IN LTE-ADVANCE SYSTEMS - Systems and methods for the configuration of channel state information reference signals (CSI-RS) are disclosed. The systems and methods include providing user equipment with the locations of CSI-RS reuse information. Several encoding patterns and exemplary methodology for both the identification of the CSI-RS resource element locations are provided in exemplary embodiments. In addition, exemplary embodiments provide muting methods and systems for a physical downlink shared channel resource elements. | 08-15-2013 |
20130203402 | ENHANCEMENT OF ACCESS CONTROL FOR CDMA2000 - This document provides wireless communications technologies, including methods, devices and systems. For example, a method of facilitating wireless communications is provided to include operating a wireless network to receive an access probe transmission from an access terminal requesting an access channel grant; perform, based on the received access probe transmission, a persistence test with the access terminal; receive a subsequent probe transmission for the access channel grant request; and perform, based on the received subsequent probe transmission, a subsequent persistence test with the access terminal. | 08-08-2013 |
20130195122 | METHOD FOR MULTIPLEXING UPLINK CONTROL INFORMATION ON A PHYSICAL UPLINK SHARED CHANNEL - A method of selecting resource element for UCI transmission and countering a ping-pong effect includes adjusting transmission parameters without adjusting a channel quality indicator/pre-coding matrix index. The transmission parameters include a modulation coding set of a transport block and a transport block size. Another method of selecting resource element for UCI transmission and countering the ping-pong effect includes selecting a transport block having a highest modulation coding set index or the transport block having a lowest modulation coding set index. Alternatively, the evolved Node B may select the transport block having a largest size or the transport block having the smallest size. | 08-01-2013 |
20130191535 | METHOD AND SYSTEM FOR CLOUD-BASED MEDIA ADAPTATION AND TRANSCODING SERVICE - A system for establishing a communication session between an originating device and a terminating device using at least one media adaptation and transcoding service (MATS) host comprises at least one computing device which searches a domain associated with the at least one originating and terminating device, for the at least one MATS host. The at least one MATS host comprises a resource configured to establish a communication session between the originating device and the terminating device. If at least one MATS host is available in the domain, the at least one computing device establishes the communication session between the originating device and the terminating device by using the resource of the at least one MATS host. The used resource is monitored during the established communication session. | 07-25-2013 |
20130148971 | DIRECT DETECTION OF OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SIGNALS - Techniques for timing synchronization in an optical orthogonal frequency division multiplexing (OOFDM) system includes providing a time-domain training symbol having a symmetric distribution and producing the training symbol by transmitting a real-valued PN sequence on each subcarrier under the OOFDM. The training sequence includes an initial value, followed by an odd length palindromic sequence of values. | 06-13-2013 |
20130148956 | EQUALIZATION DELAY AGNOSTIC PROTECTION SWITCHING IN PROTECTED PASSIVE OPTICAL NETWORKS - Systems, methods and apparatus for operating an optical network terminal (ONT) in a passive optical network include maintaining an operational state in the passive optical network, estimating an upstream channel, adjusting equalization delay and physical layer frame offset values and switching from a backup mode to a primary mode of operation upon detecting a failure condition. | 06-13-2013 |
20130137427 | METHOD AND APPARATUS FOR IMPROVED BASE STATION CELL SYNCHRONIZATION IN LTE DOWNLINK - Methods and apparatus for enhancing a search performance for timing includes a mobile station that detects a plurality of signals, each from one of a plurality of cells, wherein one of the plurality of cells is identified by the mobile station as a strong cell and the remaining cells are identified by the mobile station as weak cells. A first matched filter is applied to a signal from the strong cell to detect first parameters associated with the strong cell. A second matched filter is applied to at least one signal from one or more of the weak cells resulting in at least one second matched filter output. Interference is removed from the at least one second matched filter output to detect one or more second parameters associated with one of the weak cells and to establish a timing of one of the weak cells. | 05-30-2013 |
20130128730 | ENHANCEMENT OF PATH QUALITY OF SERVICE IN MULTI-HOP PACKET COMMUNICATION NETWORKS - Techniques and systems for enhancing quality of service (QoS) in communication networks, including wired and wireless communication networks. Implementations of described techniques and systems can be used to provide path-based QoS with distributed per-hop scheduling for carrying traffic over a multi-hop packet communication network. | 05-23-2013 |
20130114509 | OFDM/OFDMA FRAME STRUCTURE FOR COMMUNICATION SYSTEMS - An OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM/OFDMA frame structure technology comprises a variable length sub-frame structure with efficiently sized cyclic prefixes and efficient transition gap durations operable to effectively utilize OFDM/OFDMA bandwidth. Furthermore, the frame structure provides compatibility with multiple wireless communication systems. An uplink frame structure and a downlink frame structure are provided. | 05-09-2013 |
20130107797 | RESOURCE ALLOCATION IN WIRELESS MULTI-HOP RELAY NETWORKS | 05-02-2013 |
20130102262 | All-Outdoor Microwave Enclosure Having a Built-In Memory Cardholder - A microwave transmit/receive enclosure comprises an enclosure housing and one or more I/O connection ports that are mounted on one side of the enclosure housing. The enclosure housing contains a removable communication connector and a removable memory card. Both the removable communication connector and the removable memory card can be inserted into or removed from the enclosure housing via the same I/O connection port. | 04-25-2013 |
20130094432 | FRAME STRUCTURE FOR MULTI-HOP RELAY IN WIRELESS COMMUNICATION SYSTEMS - Implementations of systems and techniques for scheduling wireless transmission of data blocks between a base station (BS) and one or more relay stations (RSs) in a wireless relay communication network. | 04-18-2013 |
20130072236 | PAGING MECHANISMS FOR MOBILE STATIONS WITH MULTIPLE SUBSCRIPTIONS - Apparatuses, techniques, and systems for operating a mobile station with multiple subscriptions includes transmitting a paging message for a subscriber identity of two or more subscriber identities that are associated with a single mobile station over a wireless communication channel based on a paging cycle structure including multiple paging slots. The two or more subscriber identities can include a first subscriber identity and a second, different subscriber identity. Transmitting the paging message can include using, during a paging cycle based on the paging cycle structure, a single paging slot to transmit the paging message, where the single paging slot is associated with the two or more subscriber identities. | 03-21-2013 |
20130054797 | METHOD AND SYSTEM FOR HIERARCHICAL TRACKING OF CONTENT AND CACHE FOR NETWORKING AND DISTRIBUTION TO WIRED AND MOBILE DEVICES - Embodiments of the present invention are directed to a system and apparatus for tracking media content (storage) and its cache (that is synched with the original content) in a large-scale wide-area distributed network. The system includes at least one mini tracker which is configured to keep information on the location of the content and to distribute this information to micro trackers in a first jurisdiction. The system also includes at least one zone tracker which is configured to keep information on the location of the content in a region and to distribute this information to mini trackers in a second jurisdiction. The system further includes a master tracker which is configured to keep information on the location of the content in all regions in a third jurisdiction to distribute this information to zone trackers in the third jurisdiction. The micro tracker (in wired or mobile end device/point) is configured to obtain location information from at least one of the mini tracker or zone tracker if a primary source malfunctions. | 02-28-2013 |
20130021957 | METHODS AND APPARATUS FOR GROUP PAGING IN WIRELESS NETWORKS - Methods, apparatus and systems for group paging of wireless devices are described. A wireless device is associated with a member identifier (MID) that is a unique identifier for the wireless device. The wireless device is associated with a group identifier (GID) that is a unique identifier for a group of which the wireless device is a member. The wireless device is woken up from a sleep mode at a wake-up time based on the GID. | 01-24-2013 |
20130016640 | ENHANCEMENT OF SLOTTED MODE OPERATION FOR WIRELESS COMMUNICATIONAANM Fang; YonggangAACI San DiegoAAST CAAACO USAAGP Fang; Yonggang San Diego CA USAANM Yu; YuanFangAACI ShenzhenAACO CNAAGP Yu; YuanFang Shenzhen CNAANM Lu; TingAACI BeijingAACO CNAAGP Lu; Ting Beijing CNAANM Zhao; XiaowuAACI ShenzhenAACO CNAAGP Zhao; Xiaowu Shenzhen CN - Methods, apparatus and systems for enhanced slotted mode operation for wireless communication are disclosed. A first control message indicative of a first sleep cycle duration is received. When the first control message includes a first message field, a second control message that includes a second field indicative of a second sleep cycle duration that is greater than the first sleep cycle duration is transmitted. | 01-17-2013 |
20120322408 | WIMAX FEMTO AND MACRO IDLE MODE AND PAGING SUPPORT FOR RE-ENTRY - A base station determines if the mobile station seeking re-entry into the network is a member of a closed-subscriber group associated with the base station. If the mobile station is not a member of the closed subscriber group associated with the base station, the base station redirects the mobile station to another base station. | 12-20-2012 |
20120321248 | MULTI-STAGE OPTICAL INTERLEAVING - Methods and devices are provided to facilitate production of optical signals that exhibit reduced crosstalk noise and intersymbol interference. In some configurations, a multi-stage optical interleaver, including a first and a second optical interleaver, is used to process a first and a second set of input optical channels. The composite optical output of the multi-stage interleaver includes the first set of optical channels and the second set of optical channels, where each of the first and second set of input optical channels is processed once by the first optical interleaver and once by the second optical interleaver. As such, the first and second sets of input optical channels are each filtered twice using only two optical interleavers. | 12-20-2012 |
20120307802 | INTERNETWORKING TECHNIQUES FOR TRANSFERRING PACKETS BETWEEN SOURCE AND TARGET SERVING GATEWAYS - Techniques for wireless communications include operating first and second access networks to provide wireless service to wireless devices. The first and second access networks are associated with respective first and second gateways. The first gateway is operated to (1) receive a request for transferring wireless service of a wireless device from the second access network to the first access network and (2) send a message that includes key information to the second gateway based on the request. The second gateway is operated to (1) send session context information to the first gateway in response to the message and (2) forward a data packet associated with the wireless device to the first gateway. The forwarded data packet includes a packet data network identifier (PDN-ID) to identify a packet data network (PDN) associated with a downlink data packet. | 12-06-2012 |
20120294206 | DYNAMIC ADJUSTMENT OF DOWNLINK/UPLINK ALLOCATION RATIO IN TDD WIRELESS SYSTEMS - Techniques, apparatuses, and systems for dynamically changing downlink and uplink allocations can include operating a base station under time division duplexing to communicate with one or more mobile devices using a frame structure, adjusting a downlink-uplink ratio to change an allocation between uplink and downlink data capacities in the frame structure, determining a mute interval based on the adjusted downlink-uplink ratio, generating mute information based on the mute interval to identify the one or more areas of the frame structure effected by the allocation change, and transmitting the mute information to the one or more mobile devices. | 11-22-2012 |
20120282909 | WIMAX FEMTO NETWORK SUPPORT FOR WIMAX FEMTO CONFIGURATION MANAGEMENT - Embodiments of the present invention relate to wireless communication and, more specifically, to network support for configuration management in a Worldwide Interoperability Microwave Access Femto Network. In one exemplary embodiment, offline and/or updated configuration information is obtained by a WiMAX Femto Access Point from a management server whether the WiMAX Femto Access Point is active or inactive and before or after initial network entry. Configuration information synchronization may also be performed before or after initial network entry. | 11-08-2012 |
20120236822 | INTER-OPERATION BETWEEN BASE STATIONS HAVING DIFFERENT PROTOCOL REVISIONS - Techniques for the inter-operation of base station having different protocol revision numbers include broadcasting a first message that includes a protocol revision field indicating a same revision as a legacy network, transmitting a second message over a forward link common control channel, the second message indicating advanced radio configuration (RC) capabilities beyond radio control capabilities implied by the protocol revision field broadcast in the first message, receiving, in response to the second message, a third message from a mobile station, indicating that the mobile station supports the advanced RC capabilities and establishing, with the mobile station, a radio link having the advanced RC capabilities. | 09-20-2012 |
20120230688 | METHOD AND SYSTEM FOR GENERATION OF COHERENT SUBCARRIERS - A method and system for generating multi-subcarriers is disclosed. Re-circulating frequency shifters—based on the frequency shifting in two cascading phase modulators—are used to generate 112 subcarriers with stable architecture since there is no direct current bias in phase modulators. | 09-13-2012 |
20120224561 | METHODS AND APPARATUS FOR RADIO CONFIGURATION INDICATION - Techniques for facilitating wireless communication include receiving a message from a mobile station, the message comprising a service option field indicative of an advanced radio configuration capability of the mobile station and establishing a radio link between the mobile station and the serving base station, by using the indicated advanced radio configuration capability. In some implementations, in a CDMA2000 network, a Revision E compliant mobile station is able to operate in Revision E mode with a Revision E base station and a legacy mode with a legacy base station, without being affected by a handoff and without a need to modify bit length of the revision field in the paging response message from the mobile station. | 09-06-2012 |
20120219296 | METHODS AND SYSTEMS FOR COHERENT MULTI-SUBCARRIER SOURCE GENERATION - A method of generating a multi-subcarrier optical signal is disclosed. A local oscillator oscillates one or more data signals to generate one or more oscillating data signals. A series of modulators phase modulate a lightwave to generate a phase modulated lightwave, wherein the series of modulators are driven by the one or more oscillating data signals. The intensity modulator modulates the phase modulated lightwave, the intensity modulator being driven by one of the oscillating data signals, to generate the multi-subcarrier optical signal. | 08-30-2012 |
20120218924 | QUALITY OF SERVICE (QOS) OVER NETWORK-TO-NETWORK INTERFACES FOR IP INTERCONNECTION OF COMMUNICATION SERVICES - Techniques, apparatuses, and systems can include mechanisms to provide end-to-end quality-of-service. | 08-30-2012 |
20120208504 | FEMTO ACCESS POINT INITIALIZATION AND AUTHENTICATION - A method and apparatus is provided for implementing initial network entry procedures by a Femto access point which is required to be authenticated by the WiMAX network prior to becoming active and operational. The method includes implementing a DNS query to discover an associated server and gateway in an associated Femto network service provider domain and obtaining an IP address for the server and an IP address for the gateway. The method also includes authenticating the Femto access point with the associated Femto network service provider and establishing a secure IP tunnel between the Femto access point and the gateway. The method further includes interacting with a default self organizing network server to perform location authorization, wherein the self organizing network server is configured to auto configured the Femto access point with preliminary radio parameters. The method also includes executing registration with a Femto gateway. The apparatus includes associated components for implementing the method described above. | 08-16-2012 |
20120190337 | METHODS AND APPARATUS FOR ACCOUNTING AT HOME AGENT (HA) / LOCAL MOBILITY AGENT (LMA) FOR CDMA2000 SYSTEMS - Techniques for facilitating wireless communications include receiving a registration request (such as a mobile internet protocol MIP registration request, and transmitting, based on the received registration request, an accounting message indicating support of an accounting mode. The accounting mode may, for example, include performing accounting for a mobile station at a packet data serving node (PDSN) that is serving the mobile station. | 07-26-2012 |
20120188955 | METHODS AND SYSTEMS FOR TRANSMITTING SFBC SIGNALS WITH CSI-RS TRANSMISSION AND RELATED MUTING IN LTE-ADVANCE SYSTEMS - Systems and methods for transmitting a physical downlink shared channel (PDSCH) of spatial-frequency block coding (SFBC) format in a subframe that includes at least one of a channel state information reference signal (CSI-RS) and zero-power muting are disclosed. A processor unit is groups one or more resource elements (REs) available for at least one of CSI-RS and zero-power muting, and the subframe including the group of one or more REs is transmitted. All of the one or more REs in a group may be used for PDSCH rate matching together, or none of the one or more REs in the group may be used for PDSCH rate matching. All REs on one OFDM symbol may not be used for PDSCH rate matching if any two REs per SFBC pair on the OFDM symbol, are separated by at least N REs, where N is equal to 1 or 2. | 07-26-2012 |
20120178374 | METHOD AND SYSTEM FOR SPATIAL CSI FEEDBACK FOR COORDINATED MULTI-POINT PROCESSING (CoMP) - Spatial discrimination information is fed back at both the multi-antenna transmitter and the multi-antenna receiver connecting a UE and cells within a CoMP measurement set. With the UE feeding back the transmitter and the receiver side spatial discrimination information of each cell-to-UE connection, the composite spatial CSI over multiple sites/nodes can be determined. The approach is applicable for UEs with single or multiple receiving antennas, and the spatial discrimination information can be wideband long-term or subband short-term. In some embodiments, the spatial discrimination information at the receiver side is derived from the actual spatial channel while receiver implementation is taken into account. The spatial discrimination information at the transmitter and at the receiver can be fed back using codebooks for MIMO precoding. | 07-12-2012 |
20120176886 | METHOD AND SYSTEM FOR OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WITH HADAMARD TRANSFORM COMBINED WITH COMPANDING TRANSFORM - A combined Hadamard and companding transform technique is incorporated into orthogonal frequency division multiplexed signals to reduce the peak-to-average ratio of signals. A Hadamard transform is applied to the signals to generate a first transformed signal of subsymbols. An Inverse Fast Fourier Transform is performed on the subsymbols to generate a second transformed signal of the subsymbols. The second transformed signal is then companded, making them ready for transmission as optical signals. | 07-12-2012 |
20120172036 | ENABLING HANDOFF FOR MULTIPLE PACKET DATA NETWORK CONNECTIONS - Techniques for enabling handoff for multiple packet data network connection include selecting, when roaming from a current access network (AN) supporting multiple concurrent packet data network (PDN) connections to a handover target AN not supporting multiple concurrent PDN connections, a single PDN connection, from among multiple active PDN connections, for operation in the handover target AN and exchanging messages to register the single PDN connection in the handover target AN. | 07-05-2012 |
20120149376 | MOBILE STATION INITIATED LOAD BALANCING IN WIRELESS COMMUNICATION NETWORKS - Techniques for load balancing across different access networks based on procedures initiated by a wireless terminal or mobile station and examples of using load balancing within the same access network to hand off a mobile station from one base station to another based on procedures initiated by the mobile station. | 06-14-2012 |
20120149373 | REDIRECTING MOBILE SERVICES IN MULTIPLE OVERLAPPED WIRELESS NETWORKS - Techniques, apparatuses, and systems for redirecting mobile services include generating a message with a redirection indication and transmitting the message to one or more mobile stations. A redirection indication can include an identifier for a wireless network operator and access information for a network associated with the wireless network operator. | 06-14-2012 |
20120148261 | METHOD AND SYSTEM FOR OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WITH COMPANDING TRANSFORM - A companding transform technique is incorporated into orthogonal frequency division multiplexed signals to reduce the peak-to-average ratio of the signals. Prior to the companding transform, an inverse discrete Fourier transform is performed on the signal. Following the companding transform, the signal is compressed, at which point the compressed signal may be advantageously optically transmitted. | 06-14-2012 |
20120134286 | METHODS AND APPARATUS FOR CONFIGURING SUBSCRIBER QUALITY OF SERVICE PROFILES - A wireless communication apparatus is operable in a first wireless communications system implementing a first wireless communications protocol. A subscriber Quality of Service (QoS) profile module is for configuring a QoS Profile. A receiver module is for receiving, over the first wireless network, a QoS Profile Request message. A transmission module is for transmitting a QoS Profile Response message over the first wireless network. | 05-31-2012 |
20120120854 | METHOD AND SYSTEM FOR DYNAMIC ADJUSTMENT OF DOWNLINK/UPLINK ALLOCATION RATIO IN LTE/TDD SYSTEM - A method and system for dynamic adjustment of downlink/uplink resource allocation ratio in a long-term evolution (LTE) time division duplex (TDD) system is disclosed. The method includes replacing at least one uplink subframe in a subframe pattern with at least one of a mute subframe and a mute uplink pilot timeslot (UpPTS), within a geographical guard area that isolates at least two areas having different TDD allocation patterns. The method further includes scheduling an uplink transmission from at least one mobile terminal such that the at least one of the mute subframe and the mute UpPTS are unused. A simple solution or a TDD configuration index substitution solution, or any combination thereof, may be used to control the uplink transmission involving a mute subframe or a mute UpPTS. | 05-17-2012 |
20120106973 | METHOD AND APPARATUS FOR OPTICAL WIRELESS ARCHITECTURE - Embodiments of the present invention pertain to optical wireless architecture. More particularly, certain embodiments of the invention pertain to a novel method and apparatus to generate millimeter-wave signals with simple and/or low cost architecture. Simple millimeter-wave generation and dispersion-tolerant transmission is based on photonic mixing of two free-running lightwaves and self-mixing down-conversion. More particularly, heterodyne mixing of two free run lightwaves is achieved, wherein one lightwave is modulated by an external modulator driven by electrical data as one of the side-bands of a millimeter-wave signal. Optical to electrical conversion is performed and the millimeter-wave signal is broadcasted by a high-frequency antenna to a receiving side having a local oscillator with self-mixing architecture to down-convert the radio frequency to its baseband form. | 05-03-2012 |
20120082047 | USER EQUIPMENT MEASUREMENT FOR INTERFERENCE MANAGEMENT IN HETEROGENEOUS NETWORKS WITH FEMTO CELLS - Systems and methods for interference management are disclosed. Exemplary embodiments disclose systems and methods configured to identify victim or interfering mobile stations and transmit measurement instructions to the victim or interfering mobile stations. According to certain embodiments, the mobile stations monitor downlink link quality and report this information back to the serving cells. The serving cells are configured to schedule the mobile stations in the subframes whose downlink link quality is high, determined based on a predetermined threshold. | 04-05-2012 |
20120028661 | INTERWORKING CIRCUIT SERVICE FALL BACK - Techniques, apparatuses, and systems include mechanisms for interworking circuit service fallback. In one implementation, a system for wireless communications can include one or more first base stations forming a first radio access network to provide wireless communications based on a first wireless technology; one or more second base stations forming a second radio access network to provide wireless communications based on a second wireless technology which is different from the first wireless technology, and an interworking service (IWS) module that is configured to provide the interworking between the first and second radio access networks for communications to a wireless device served by the system via either the first wireless technology or the second wireless technology, and uses a signal adaptation protocol to encapsulate messages in communicating with a wireless device served by the system. Other implementations are also provided in this document. | 02-02-2012 |
20110292859 | MOBILITY MANAGEMENT METHOD AND SYSTEM FOR MULTICAST AND BROADCAST SERVICES - A system is disclosed for performing a mobile station handover while continuing a multicast and broadcast service (MCBCS). The system includes a transceiver module transmitting from the mobile station multicast and broadcast service (MBS) zone criteria, including a list of one or more potential target base stations, to a serving base station, if a target base station is not in the same MBS zone as the serving base station. A handover request is made to one or more of the potential target base stations from the serving base station, determined based on the MBS zone criteria, where the MBS zone criteria includes an MCBCS continuity policy of the mobile station. A target base station is then selected, from the list of one or more potential target base stations, that satisfies the MBS zone criteria, and a handover process is performed to the target base station. | 12-01-2011 |
20110237251 | IDLE AND PAGING SUPPORT FOR WIRELESS COMMUNICATION SYSTEMS WITH PRIVATE CELLS - Systems, apparatuses, and techniques for operating a wireless communication system with public and private paging groups. Systems, apparatuses, and techniques can include operating a base station to provide wireless service to mobile stations in a macrocell, the macrocell associated with a public paging group identifier and a private paging group identifier; assigning the private paging group identifier to one or more private cells that are spatially situated in at least a portion of the macrocell, the one or more private cells are operable by one or more base stations to restrict wireless access to specific wireless devices; and using wireless device access privileges associated with the one or more private cells for one or more wireless operations associated with the mobile stations, the wireless operations including paging and location update. | 09-29-2011 |
20110177838 | METHOD AND SYSTEM FOR SPACE-TIME POWER CONTROL FOR MIMO TRANSMISSIONS - A system for controlling transmit power at a station in a multiple in, multiple out (MIMO) system is disclosed. The system includes a signal to interference-plus-noise ratio (SINR) generator configured to predict a post-processing SINR, based on at least one previous and current SINR estimate, for each spatial stream. A power control bit (PCB) generator is configured to generate at least one PCB based on the predicted SINR, which is transmitted to the station at which transmit power is controlled, by a transceiver module, where the stations is a base station or a mobile station. A power control step (PCS) generator is configured to determine a PCS size based on the PCB. | 07-21-2011 |
20110170638 | METHOD AND SYSTEM FOR SPATIAL CHANNEL STATE INFORMATION FEEDBACK BASED ON A KRONECKER PRODUCT - A spatial channel state information (CSI) feedback technique is incorporated into multiple-input multiple-output mobile communications technologies. Spatial channel state information is measured at receiving equipment and then decomposed into components. The components are then quantized using codebook(s) and fed back as multiple indices to transmitting equipment. | 07-14-2011 |
20110113480 | CARRIER-GRADE PEER-TO-PEER (P2P) NETWORK, SYSTEM AND METHOD - A computing network, including: a plurality of peer computing devices including code, which when executed by a peer computing device causes the executing peer computing device to cooperate with at least one other of the peer computing devices; at least one server including code, which when executed by the at least one server locates at least one of the peer computing devices; and at least one mediator including code, which when executed by the at least on mediator collects information from at least some of the peer computing devices; wherein, the peer computing devices, at least one sever and at least one mediator are communicatively coupled via an at least carrier-grade telecommunications network being suitable for enhancing co-operation among the cooperating ones of the peer computing devices relative to best-efforts communications among the cooperating ones of the peer computing devices. | 05-12-2011 |
20110110310 | FRAME STRUCTURE FOR MULTI-HOP RELAY IN WIRELESS COMMUNICATION SYSTEMS - Implementations of systems and techniques for scheduling wireless transmission of data blocks between a base station (BS) and one or more relay stations (RSs) in a wireless relay communication network. | 05-12-2011 |
20110103406 | FLEXIBLE OFDM/OFDMA FRAME STRUCTURE FOR COMMUNICATION SYSTEMS - A flexible OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM frame structure technology comprises a configurable-length frame which contains a variable length subframe structure to effectively utilize OFDM bandwidth. Furthermore, the frame structure facilitates spectrum sharing between multiple communication systems. | 05-05-2011 |
20110096783 | FLEXIBLE OFDM/OFDMA FRAME STRUCTURE FOR COMMUNICATION SYSTEMS - A flexible OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM frame structure technology comprises a configurable-length frame which contains a variable length subframe structure to effectively utilize OFDM bandwidth. Furthermore, the frame structure facilitates spectrum sharing between multiple communication systems. | 04-28-2011 |
20110085497 | Connectionless modes for wireless machine to machine communications in wireless communication networks - Techniques, devices, and systems that include mechanisms for connectionless communications in wireless communication networks or systems. | 04-14-2011 |
20100332625 | METHOD AND SYSTEM FOR PROTOCOL CONFIGURATION IN WIRELESS COMMUNICATION SYSTEMS - Described herein are methods and systems for protocol configuration in a wireless communication system. In one embodiment, the system includes an access service network device configured to receive a Dynamic Host Configuration Protocol (DHCP) message, including protocol configuration information of a mobile station, and to relay at least a portion of the protocol configuration information to a data server to which the mobile station seeks access. The protocol configuration information is translated to a protocol used by the access service network device and the data server, before relaying the protocol configuration information. The access service network device can act as a proxy or a relay between the mobile station and the data server. According to an embodiment, the wireless communication system includes a WiMAX communication system. | 12-30-2010 |
20100322163 | Internetworking Techniques for Transferring Packets Between Source and Target Serving Gateways - Techniques, apparatuses, and systems having mechanisms for transferring packets between source and target serving gateways. | 12-23-2010 |
20100203906 | Paging Mechanisms for Mobile Stations with Multiple Subscriptions - Apparatuses, techniques, and systems for operating a mobile station with multiple subscriptions includes transmitting a paging message for a subscriber identity of two or more subscriber identities that are associated with a single mobile station over a wireless communication channel based on a paging cycle structure including multiple paging slots. The two or more subscriber identities can include a first subscriber identity and a second, different subscriber identity. Transmitting the paging message can include using, during a paging cycle based on the paging cycle structure, a single paging slot to transmit the paging message, where the single paging slot is associated with the two or more subscriber identities. | 08-12-2010 |
20100150069 | Reverse Link Acknowledgment Signaling - Techniques, apparatuses, and systems can include mechanisms for transmitting and receiving data on one or more reverse link acknowledgement channels. | 06-17-2010 |
20100130212 | Femto Cell Handover In Wireless Communications - Techniques, apparatuses, and systems can include determining one or more handover base station candidates for a specific mobile station associated with a serving base station based at least on respective one or more proximities of the one or more handover base station candidates to the serving base station and one or more base station access privileges associated with the mobile station. | 05-27-2010 |
20100076879 | SYSTEM AND METHOD OF PROVIDING SERVICES VIA PEER-TO-PEER-BASED NEXT GENERATION NETWORK - A peer-to-peer network comprises a plurality of intelligent terminal nodes, each intelligent terminal node being operable to establish, maintain, and tear-down communication sessions with another intelligent terminal node, a plurality of network service nodes coupled to the plurality of intelligent terminal nodes, the plurality of network service nodes comprise at least one of the plurality of intelligent terminal nodes, at least one user P2P function module operable to store, locate and distribute service resource information related to user policies, and at least one network P2P function module operable to store, locate and distribute service resource information related to operator provider policies, and operable to exert stricter security control than the at least one user P2P function module. | 03-25-2010 |
20100046410 | MCBCS System Initialization and Establishment Over Wireless Broadband Network - Systems, apparatuses, and techniques for wireless communications can include receiving an access profile associated with a wireless device from a connectivity service network which is operable to determine whether the wireless device has privilege to a data feed provided by a multicast-broadcast service controller; operating a proxy, which is in communication with the multicast-broadcast service controller, based on the access profile to obtain service parameter information associated with the data feed and to use a first multicast-broadcast service data path between the proxy and the multicast-broadcast service controller to receive the data feed; and operating a base station to deliver the data feed to the wireless device in accordance with the service parameter information, the base station operable to use a second, different multicast-broadcast service data path between the proxy and the base station to receive the data feed. | 02-25-2010 |
20100029278 | USING IDENTIFICATION SEQUENCES IN WIRELESS COMMUNICATION SYSTEMS - Techniques, apparatuses, and systems for using identification sequences in a wireless communication system can include receiving information indicative of a pilot code detected by a wireless device, the pilot code being shared by multiple Femto Access Points (FAPs) that each provide wireless service in at least a portion of the coverage area; receiving information indicative of an identification sequence detected by the wireless device that is associated with the pilot code, using the information indicative of the identification sequence to identify one of the FAPs that share the pilot code; and performing a hand-off of the call to the identified FAP to continue to provide wireless service for the call via the identified FAP. | 02-04-2010 |
20090300726 | ETHERNET SERVICE CAPABILITY NEGOTIATION AND AUTHORIZATION METHOD AND SYSTEM - Described herein are methods and systems for negotiating and authorizing one or more Ethernet and/or IP services among a plurality of network entities in a wireless communication system. In one embodiment, an Access Service Network Entity transmits Ethernet Service capability data to a Home Connectivity Service Entity. Optionally, the Ethernet Service capability data may include Ethernet Service capability data associated with a Visited Connectivity Service Entity. The Home Connectivity Service Entity then determines which Ethernet and/or IP Services are authorized for a particular mobile station associated with the Access Service Network Entity based upon the received Ethernet Service capability data, a subscriber profile, and a home network policy. | 12-03-2009 |
20090019156 | System and Method of Providing Services via a Peer-To-Peer-Based Next Generation Network - A peer-to-peer network comprises a plurality of intelligent terminal nodes, each intelligent terminal node being operable to establish, maintain, and tear-down communication sessions with another intelligent terminal node, a plurality of network service nodes coupled to the plurality of intelligent terminal nodes, the plurality of network service nodes comprise at least one of the plurality of intelligent terminal nodes, at least one user P2P function module operable to store, locate and distribute service resource information related to user policies, and at least one network P2P function module operable to store, locate and distribute service resource information related to operator provider policies, and operable to exert stricter security control than the at least one user P2P function module. | 01-15-2009 |
20080280608 | Enhanced Timer Based Registration Method for Wireless Communication Networks - Techniques and systems that provide enhanced timer based registration for efficiently registering access terminals with a wireless network. | 11-13-2008 |
20080267110 | Signaling for Multi-Hop Relay in Wireless Communication Systems - Systems and techniques for signaling between a subordinate base station and a superordinate base station in a wireless network with wireless relay stations to inform the superordinate base station of a failure in establishing an uplink related to the subordinate base station and scheduling wireless resource allocation between a base station and one or more relay stations. | 10-30-2008 |
20080253322 | WiMAX Multicast Broadcast Network System Architecture - Techniques and system architectures for supporting Multicast Broadcast Services (MCBCS) over a WiMAX network. | 10-16-2008 |
20080247372 | Data Synchronization for Multicast/Broadcast Service in Wireless Relay Network - Wireless communication relay networks and techniques for providing data synchronization in Multicast Broadcast Services (MBS). | 10-09-2008 |
20080220790 | Radio resource management in wireless cellular networks having multihop relay stations - Radio resource management for wireless cellular networks equipped with relay stations for multi-hop packet or protocol data unit (PDU) relaying. | 09-11-2008 |