| Patent application number | Description | Published |
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| 20120183026 | Crosstalk Limitation between Modems - A device for providing access to a data communication network for modems is connected to the modems via a set of communication lines. The modems include a first group supporting vectoring and a second group not supporting vectoring. The device investigates the expected value of an element in a synchronization interval to be received by a modem in the second group, investigates the value of an element of at least one data sequence assigned to the communication line of this modem, compares the values, selects the element of the investigated data sequence for transmission if the element value corresponds to the expected value and transmits the selected element and corresponding elements of a number of pilot sequences assigned to the first group of modems via the set of communication lines. | 07-19-2012 |
| 20120320959 | METHOD AND ARRANGEMENT IN A DSL VECTORING SYSTEM - Method and arrangement in a Vectoring Control Entity, VCE, for handling disorderly events in a Digital Subscriber Line, DSL, system. The method involves a number of actions, to be performed when a disorderly event occurs on a line min a vectored group of DSL lines, and the transmission on line m is continued. The method comprises obtaining( | 12-20-2012 |
| 20130136254 | Method In A Communication System - Method and arrangement in a Vector Control Entity for efficient selection of which crosstalk to cancel when applying partial vectoring in a DSL communication system. The method comprises calculating a respective crosstalk effect indicator, CEI | 05-30-2013 |
| 20130142319 | Method In A Communication System - A method and arrangement are disclosed in a Vector Control Entity for enabling a fair bit rate distribution among lines of similar priority in a vectoring group, when applying partial vectoring in a DSL communication system. The method comprises calculating a rate balancing metric, RBM, for each line i within a priority group A, indicative of the ratio between the bit rate of a line i with a current vectoring resource allocation, and the estimated bit rate of line i assuming approximately no crosstalk within the vectoring group. The method further comprises allocating partial-vectoring resources to the line/s within the group A, based on the calculated RBMs, such as to reduce the difference in RBM between the lines. The method further comprises calculating an updated RBM for any line within the group A subjected to changes in vectoring resource allocation. The method may be iterated until certain criteria are fulfilled. The arrangement is adapted to enable the performance of the above described method. | 06-06-2013 |
| 20130272110 | Method for Handling Transmission Errors On a Telecommunications Transmission Line - When data retransmission is used to handle errors caused by impulse noise, buffer memory requirements may be reduced and/or data rate increased by detecting impulse noise at the transmitting equipment and initiating retransmission in response to such detection rather than waiting for a retransmission indication from the receiving end. The decision to retransmit may be made dependent on the strength or other properties of the detected noise burst. The decision criterion may be made adaptive by correlating noise burst properties with received retransmission indications or the absence thereof. | 10-17-2013 |
| 20140161163 | METHOD AND ARRANGEMENT IN A DSL VECTORING SYSTEM - Method and arrangement in a Vectoring Control Entity, VCE, for handling disorderly events in a Digital Subscriber Line, DSL, system. The method involves a number of actions, to be performed when a disorderly event occurs on a line m in a vectored group of DSL lines, and the transmission on line m is continued. The method comprises obtaining error samples from Customer Premises Equipments, CPEs, connected to other lines in the vectored group of DSL lines. The method further comprises—calculating an estimate of the channel coefficients changed due to the disorderly event, based on the error samples, thus providing a partial channel estimate. Further, the method comprises—modifying a downstream precoder, at least partly based on the partial channel estimate, such that retraining of the other lines in the vectored group due to the disorderly event is avoided. | 06-12-2014 |
| 20140169489 | Method for Saving Power in a Telecommunications System - In a vectoring-capable DSL system, power can be saved by a low power mode wherein data transmission is reduced or halted, but synch symbols continue to be transmitted, so that estimation of crosstalk coefficients may continue during the low power mode. When crosstalk coefficient estimates are up to date, a line may exit low power mode without causing problematic changes of crosstalk noise in other lines, since the vectoring functionality will eliminate or reduce the crosstalk. | 06-19-2014 |
| 20140219074 | Adjusted Transmission in XDSL - Method and transmitting node for adjusting transmission over xDSL lines connected to the transmitting node. The method involves transmitting ( | 08-07-2014 |
| 20140240194 | SMALL-CELL ANTENNA ARRANGEMENT - The present invention relates to a small-cell antenna arrangement. The antenna arrangement comprises an antenna mounting unit and an active antenna element. The antenna mounting unit is arranged with fastening means from which the active antenna element is detachable. Further, the antenna mounting unit is arranged with a signalling interface via which signals are arranged to be transferred between the active antenna element and a remotely located base station with which the antenna arrangement communicates. Moreover, the antenna mounting unit is arranged with an interface via which the active antenna element is powered. | 08-28-2014 |
| 20140269245 | METHOD AND SYSTEM FOR INITIATING BI-DIRECTIONAL COMMUNICATION IN A TIME-DIVISION DUPLEX COMMUNICATION SYSTEM - The present invention relates to a method and a system for initiating bi-directional communication in a time-division duplex (TDD) communication system between a customer premises equipment (CPE) modem, such as a DSL modem, and an operator modem, such as a DSLAM. The invention is characterized in that the transmission of the CPE modem is aligned with the time-division duplex timing structure present in received crosstalk noise when transmitting initiation signals, so-called handshake tones. | 09-18-2014 |
| 20140307763 | Single Ended Line Test Methods for Time Duplex Division Devices - The present disclosure relates to a Time Duplex Division (TDD) modem and a method in such a modem for making Single Ended Line Test (SELT) measurements. The device comprises a transmitter and a receiver and it has a normal mode of TDD communication. In these devices, Time Domain Reflectometry (TDR) is used as line measurement. It has a number of drawbacks, and for overcoming said drawbacks, Frequency Domain Reflectometry (FDR) measurement techniques adapted for TDD devices are suggested. | 10-16-2014 |
| 20140348074 | METHOD AND APPARATUS FOR CONTROLLING A SIGNAL PATH OF A RADIO COMMUNICATION - A method and a remote digital unit in a central office of a core network, for handling a radio communication for a mobile terminal being connected to an access point at a local site. The remote digital unit determines that the mobile terminal can be served locally by a local digital unit connected to a local signal switching unit at the local site, and instructs the local digital unit to locally process signals to or from the mobile terminal in the communication. The remote digital unit further schedules the signals over a radio interface between the mobile terminal and the access point, and sends updated scheduling information to the local digital unit to indicate the scheduling, thereby enabling the local digital unit to handle the radio communication according to the updated scheduling information. In this way, the functionality of a base station is divided into a relatively simple digital unit and switching function at the local site and a more advanced digital unit with scheduling function at the central office, such that the costs for implementing radio access at a local site are low and tromboning of communicated signals over the core network can be avoided. | 11-27-2014 |
| 20150103981 | Method and System for Single-Ended Line Testing - The present disclosure relates to a method, a node, a system and a computer program for input impedance measurements in the form of return loss measurements, such as single ended line testing. The disclosure also relates to a communication system having a near-end terminal and at least one far-end terminal. The near-end terminal is capable of communicating instructions to the far-end terminal in order for the near-end terminal to perform echo impulse response measurements on subsequent states of impedance for comparing, analyzing and for enabling improved localization of faults. | 04-16-2015 |
| 20150155913 | METHOD AND ARRANGEMENT IN A DSL VECTORING SYSTEM - Method and arrangement in a Vectoring Control Entity, VCE, for handling disorderly events in a Digital Subscriber Line, DSL, system. The method involves a number of actions, to be performed when a disorderly event occurs on line m in a vectored group of DSL lines, and the transmission on line m is continued. The method comprises obtaining error samples from Customer Premises Equipments, CPEs, connected to other lines in the vectored group of DSL lines. The method further comprises—calculating an estimate of the channel coefficients changed due to the disorderly event, based on the error samples, thus providing a partial channel estimate. Further, the method comprises—modifying a downstream precoder, at least partly based on the partial channel estimate, such that retraining the other lines in the vectored group due to the disorderly event is avoided. | 06-04-2015 |
| 20150244618 | BASEBAND UNIT (BBU) IMPLEMENTATION FOR FACILITATING 6LOWPAN DATA ACCESS - A scheme for providing access to 6LoWPAN data in a wireless access network. In one embodiment, a Digital Unit (DU) of the wireless access network is provided with IP bridging functionality for packaging 6LO data as a control channel message. When the DU element receives 6LO data from an external router, the data is packaged in a format specified for a control channel associated with a CPRI link coupling to a Radio Unit (RU). The bridging functionality is operative to transmit the control channel message (including the packaged 6LO data packets) to the RU element based on an address mapping between the destination IP address of the 6LO data packets and an address of the 6LO endpoint coupled to the RU element. | 08-27-2015 |
| 20150244840 | ACTIVE ANTENNA ELEMENT (AAE) IMPLEMENTATION FOR FACILITATING 6LOWPAN DATA ACCESS - A scheme for providing access to 6LoWPAN data in a wireless access network comprising a Digital Unit (DU) coupled to one or more Radio Units (RU) via CPRI links, each RU in turn coupled to one or more radio dot (RD) elements via Ethernet cable links. In one embodiment, an RD element includes a cable front-end interfaced with the Ethernet cable link, a radio front-end interfaced between the cable front-end and an antenna or a suitable access point. A sensor component may be included that is configured to generate sensor data with respect to a measurement variable, which sensor data may be packaged in a 6LoWPAN data format for transmission to the RU element coupled to the RD element. | 08-27-2015 |
| 20150245245 | PICO-RRU-BASED NETWORK IMPLEMENTATION FOR FACILITATING 6LOWPAN DATA ACCESS - A scheme for providing access to 6LoWPAN data in a Pico-Remote Radio Unit (PRRU)-based wireless access network. In one embodiment, the PRRU network comprises a Baseband Unit (BBU) coupled to one or more remote Radio Hub (RHUB) elements via a first set of CPRI links, each RHUB element in turn coupled to one or more PRRU elements via corresponding second sets of CPRI links. The BBU element comprises an interface for communicating 6LoWPAN data to and from a router coupled to an IPv6 network. The BBU element also includes a bridging functionality operative to determine endpoint PRRU elements' addresses and corresponding RHUB elements' addresses by querying an address mapping database. | 08-27-2015 |
| 20150245332 | SYSTEMS, METHODS, APPARATUSES, DEVICES AND ASSOCIATED COMPUTER-READABLE MEDIA FOR PROVIDING 6LOWPAN DATA ACCESS - A scheme for providing access to 6LoWPAN data in a wireless access network. In one embodiment, a Radio Unit (RU) of the access network is provided with IP bridging functionality for packaging 6LO data as a control channel message. When the RU element receives 6LO data from an external router, the data is packaged in a format specified for a control channel associated with an Ethernet cable link coupling the RU element to a 6LO endpoint of the access network. The bridging functionality is operative to transmit the control channel message (including the packaged 6LO data packets) to the 6LO endpoint based on an address mapping between the destination IP address of the 6LO data packets and the 6LO endpoint's address. | 08-27-2015 |
| 20150256453 | METHODS AND APPARATUSES FOR HANDLING COMMUNICATION IN A COMMUNICATION SYSTEM COMPRISING AN ACCESS POINT AND A WIRE LINE NETWORK NODE CONNECTED VIA WIRE LINE TO THE ACCESS POINT - A method is provided performed by an access point for handling uplink communication in a communication system comprising the access point and a wire line network node connected via wire line to the access point. The method comprises receiving an encrypted and/or integrity protected packet data unit, PDU, from a user equipment (UE) wirelessly connected to the access point and detecting type of the received PDU, the type of PDU being any of a signaling radio bearer type or a data radio bearer type. The method further comprises encapsulating the received PDU by setting a header to the PDU, which header comprises an identity indicating the detected type of PDU and an identity indicating a source address and/or a destination address of the PDU, and sending the encapsulated PDU to the wire line network node. Provided is also a corresponding method performed in the wire line network node. | 09-10-2015 |
| 20150296344 | DETERMINING POSITION OF A WIRELESS DEVICE USING REMOTE RADIO HEAD DEVICES - It is presented a method for assisting the determining of a position of a wireless device, the method being performed in a network node connected to a plurality of remote radio head devices via a combiner. The method comprises the steps of: receiving an uplink signal via the combiner; comparing a carrier frequency of the uplink signal with a set of manipulation schemes for a carrier frequency of uplink signals, wherein the manipulation schemes are different for at least some of the plurality of remote radio head devices; and providing a proximity indication that the position of the wireless device is in the vicinity of a remote radio head device the frequency manipulation scheme of which best matches the uplink signal. A corresponding network node, computer program, and computer program product are also presented. | 10-15-2015 |
| 20150327140 | METHOD AND APPARATUS RELATED TO WIRE LINE BACKHAUL - Presented are methods and arrangements for adapting the load in a cell based on information on upcoming events related to a backhaul link. The upcoming events related to the backhaul link may be delayed in order to give enough time for an RBS to complete activities related to the load adaptation. Thus, UEs may be handed over to neighboring cells proactively, before the cell becomes overloaded due to events related to the backhaul link. | 11-12-2015 |
| 20150341487 | Mitigation of Disconnect Events in Vectoring Based DSL Systems - There is provided mitigation of disconnect events in a vectoring based digital subscriber line, DSL, system. A method performed by a digital subscriber line access multiplexer,DSLAM, comprises detecting a loss of signal or disconnect event of a line in a vectored group of DSL lines,the loss of signal or disconnect event causing a negative impact on the DSL system. The method further comprises detecting a change in at least one downstream, DS, crosstalk coefficient of at least one line in said vectored group of DSL lines. The method further comprises determining a magnitude of said change. The method further comprises determining where the loss of signal or disconnect event has occurred by processing precoding coefficients of the vectored group of DSL lines. The method further comprises determining,on basis of the determined magnitude and where the loss of signal or disconnect event has occurred, an action to be performed by the DSLAM so as to mitigate for said negative impact. | 11-26-2015 |
| 20150349938 | BANDWIDTH ASSIGNMENT FOR MULTI-LINE TDD SYSTEMS - Transceiver node and method therein for enabling dynamic bandwidth assignment in bi-directional Time Division Duplexing (TDD) multicarrier communication over wire lines. The transceiver node is operable to be coupled to a plurality of loops, wherein each loop is terminated by a respective network terminal (NT). The method comprises collecting traffic reports from local and remote queues associated with uplink and downlink traffic on the plurality of loops, and determining an actual demand for upstream and downstream bandwidth, respectively, for each of the plurality of loops, based on the collected traffic reports. The method further comprises deriving an Upstream/Downstream (US/DS) frame partitioning based on the determined actual demand for upstream and downstream bandwidth, and providing an indication of the derived US/DS frame partitioning to the NTs. NTs are then scheduled in accordance with the derived partitioning. | 12-03-2015 |
| 20160006615 | Methods and Arrangements for Providing Radio Access at Local Site - Methods and nodes for providing radio access to a communication network ( | 01-07-2016 |
| 20160088522 | Method and Apparatus in a Base Station for Controlling Communication Resources to a Plurality of Antenna Sites of the Base Station - Disclosed is a method performed by a base station ( | 03-24-2016 |
| Patent application number | Description | Published |
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| 20140056410 | BACK-SCATTER HUMAN BODY SECURITY INSPECTION SYSTEM AND SCANNING METHOD THEREOF TO DETECT RADIOACTIVE MATTER - The present invention discloses a back-scatter human body security inspection system, capable of detecting a radioactive matter carried by the human body, comprising: a radiation source configured to generate radiation rays, a flying spot forming device, configured to modulate the radiation rays from the radiation source, so as to form flying spot scanning beams for scanning the human body to be detected, a detector configured to detect radiation rays from the human body to be detected and output a signal characterizing a dose of the radiation rays, a control and data processing device, configured to process the signal outputted from the detector to obtain a radiation image of the human body to be detected. The detector detects the radiation rays from the radiation source scattered by the human body to be detected, separately at different times, and the radiation rays from the radioactive matter carried by the human body to be detected. In the present invention, the application ranges of the back-scatter human body scanning apparatus can be effectively expanded, without adding and modifying the hardware therein, thereby increasing the monitoring function to the radioactive matter carried by the human body and further improving the effects of the human body security inspection. | 02-27-2014 |
| 20140177802 | RAY EMISSION DEVICE AND IMAGING SYSTEM HAVING THE SAME - A ray emission device and an imaging system with the ray emission device are disclosed. The ray emission device comprises: a cylinder; a ray source disposed in the cylinder for emitting a ray; and a collimator disposed in the cylinder. The collimator enables the ray emitted by the ray source to form sectorial ray beams at a plurality of positions in an axial direction of the cylinder. The cylinder has a pencil beam forming part arranged over an axial length of the cylinder corresponding to the plurality of positions. The sectorial ray beams form pencil beams through the pencil beam forming part when the cylinder rotates around a rotation axis. | 06-26-2014 |
| 20140185770 | BACK-SCATTERING INSPECTION SYSTEMS AND METHODS FOR HUMAN BODY - Human body back-scattering inspection systems and methods are disclosed. In the invention, X-rays modulated by the flying-spot forming unit having spirally distributed flying-spots have a distribution having alternating peaks and valleys on the irradiated surface. In this way, scanning starting times can be precisely controlled to cause two devices to have scanning starting times that are different by a half of a cycle. That is, the beams outputted from one device are at maximum when the beams outputted from the other device are at minimum. In other words, even if the ray source of one device emits rays, it will not significantly affect imaging result of the other device. In such way, the two devices may emit rays and perform scanning at the same time, and thus the total scanning time is reduced. | 07-03-2014 |
| 20150030205 | HUMAN BODY SECURITY INSPECTION METHOD AND SYSTEM - The present invention provides a human body security inspection method and system. The method comprises: retrieving in real-time scanning row or column image data of a personal to be inspected; transmitting in real-time the image data to an algorithm processing module and processing these image data by the module; automatically recognizing a suspicious matter by a suspicious matter automatic target recognition technique, after retrieving an image data of an entire scanning image of the personal; any of the following three inspection modes is selected, so as to perform a further processing on basis of the recognition result of the suspicious matter, (1) in a manner of automatic target recognition technique, (2) in a combination manner of the automatic target recognition technique and a privacy protection image; and (3) a combination manner of the automatic target recognition technique, a privacy protection image and human intervention. | 01-29-2015 |
| 20150048253 | MILLIMETRE WAVE THREE DIMENSIONAL HOLOGRAPHIC SCAN IMAGING APPARATUS AND METHOD FOR INSPECTING A HUMAN BODY OR AN ARTICLE - The present invention discloses a millimetre wave three dimensional holographic scan imaging apparatus and a method for inspecting a human body or an article. The apparatus comprises a first millimetre wave transceiver module, a second millimetre wave transceiver module, a first guide rail device to which the first millimetre wave transceiver module is connected in slidable form, a second guide rail device to which the second millimetre wave transceiver module is connected in slidable form, a driver configured to drive the first/second millimetre wave transceiver module to move along the first/second guide rail device, and a constrainer configured to constrain kinematic relation between the first and the second millimetre wave transceiver modules such that they only move in directions opposed to each other. They may increase scan speeds, improve scan stability, reduce scan operations and enhance the reliability of the apparatus. | 02-19-2015 |
| 20150241368 | HUMAN BODY BACK SCATTERING INSPECTION METHOD AND SYSTEM - A human body back-scattering inspection method and system are discloses. The method includes: obtaining a back-scattering scan image of a human body under inspection; distinguishing a body image from a background image in the back-scattering scan image; and calculating a feature parameter of the background image to determine whether radioactive substance is carried with the human body. With some embodiments of the present disclosure, it is possible to determine whether any radioactive substance is carried with a human body during back-scattering inspection of the human body. In further embodiments of the present disclosure, it is possible to approximately determine which part(s) of the human body carries the radioactive substance. This improves efficiency of inspection. | 08-27-2015 |
