| Patent application number | Description | Published |
|---|
| 20080316947 | METHOD AND APPARATUS FOR 3G LTE FDD and TDD DETECTION USING REFERENCE SIGNAL CORRELATION - A method and apparatus for use in a wireless communication system to detect frequency division duplex (FDD) or time division duplex (TDD) after the radio timing and cell group ID have been determined from the S-SyS during a cell search, by correlating reference symbols (RSs) and detecting whether the RSs are on resource elements corresponding to FDD or TDD. By correlating the known RS, which is known after the cell ID is detected, to the assumed RS positions for FDD or TDD, the duplex form is detected. | 12-25-2008 |
| 20090073902 | Subframes in a cellular communications system - The invention discloses a method for a cellular communications system, in which traffic is sent in frames, each frame comprising a first number of subframes, with a second number of said subframes being available for at least either uplink or downlink traffic. At least one of said second number of subframes is made to comprise at least three parts, as follows:
| 03-19-2009 |
| 20090147743 | SCHEDULING IN A CELLULAR SYSTEM - In a cellular system, transmissions are made in subframes which comprise subelements. The method is used for scheduling first and second channels in a subframe, and comprises:
| 06-11-2009 |
| 20090196204 | METHODS AND DEVICES RELATING TO DOWNLINK ASSIGNMENTS - The invention relates to a method in a first communication device of receiving control information over a radio channel from a second communication device. The first communication device receives a subframe over the radio channel, and determines whether the subframe is a downlink subframe with downlink assignment intended for the first communication device by reading data in the subframe. That being the case, the first communication device decodes data within the subframe, and determines whether any data packet being sent from the second communication device before the subframe has been missed by analysing an indicator associated to the subframe in the data. The indicator provides knowledge about previous downlink subframes with downlink assignment intended for the first communication device. | 08-06-2009 |
| 20090274074 | Method for Channel Quality Measures in a Multiple Antenna System - The invention relates to a laminate structure comprising a first active layer having a first electrode potential, a second active layer having a second electrode potential, wherein the second electrode potential being different from the first electrode potential and wherein the first and second active layers are arranged at a distance from each other, and wherein the laminate further comprises a third layer of an electrically weakable adhesive at least partly bridging said distance between the first and second layers. | 11-05-2009 |
| 20090274234 | USING COVARIANCE MATRICES FOR LINK SELECTION IN MIMO COMMUNICATION SYSTEM - A method of selecting at least one communication link in a wireless communication network is proposed, comprising the steps of transmitting from at least one transmitting node in the network a pilot signal from each of at least two transmitter antennas of the transmitting node, receiving the pilot signals from the at least two transmitter antennas in a receiving terminal, estimating, in the terminal, a covariance matrix of the channel, based on the pilot signals received, determining the pathloss for each antenna based on the covariance matrix, selecting one of at least two possible links for the communication between the terminal and the transmitting nodes. The terminal is enabled to measure on each transmitter antenna individually, which provides a better tool for link selection and cell selection. | 11-05-2009 |
| 20090312008 | Detection of Time Division Duplex Downlink/Uplink Configuration - A user equipment (UE) in a cellular telecommunications system is able to detect the uplink/downlink configuration of a detected neighboring cell by receiving a signal from the neighboring cell. A characteristic of the received signal is detected and used as an indicator in a blind detection process to identify one or more downlink slots in the received signal. Known pilot signals in the identified one or more downlink slots can then be used to obtain a signal power measurement of the received signal. The blind detection process is also capable of detecting whether a slot of a neighboring cell's signal is a downlink unicast slot or a Multicast-Broadcast Single Frequency Network slot. | 12-17-2009 |
| 20100074153 | Method and Apparatus in a Telecommunication System - Method and apparatus in a communication unit ( | 03-25-2010 |
| 20100097963 | Method and a Device for Enhanced Performance in a Cellular Wireless TDD System - The invention discloses a method ( | 04-22-2010 |
| 20100097964 | Method And A Device For Enhanced Performance In A Cellular Wireless TDD System - The invention discloses a method ( | 04-22-2010 |
| 20100099362 | Calibration Method and Device in Telecommunication System - A device system, computer medium and method for calibrating at least one impairment of a signal transmitted from a transmitting unit to a receiving unit, the method including receiving at the receiving unit at least two signals transmitted from the transmitting unit, estimating at the receiving unit, based on the received at least two signals, at least one parameter associated with transmit chain links between the transmitting unit and corresponding antennas of the transmitting unit, collecting the at least one parameter in a measurement report at the receiving unit, and transmitting the measurement report from the receiving unit for correcting the at least one impairment based on the at least one parameter. | 04-22-2010 |
| 20100103892 | Method and Arrangements for Scheduling Transmission Resources with Variable Guard Intervals - Method and arrangements for scheduling transmission resources in a first node in a cell comprised within a wireless communication network. The first node is arranged to communicate over a communication channel with at least one user equipment within the cell. The communication is made by using a frame comprising uplink resources and downlink resources with a switching point between the downlink resources and the uplink resources. The method comprises the step of obtaining a parameter referring to the expected transmission quality of the communication and/or the expected coherence properties of the communication channel. The method also comprises scheduling a transmission on an uplink or downlink resource. The resource is located on a time distance from the switching point. The time distance is based on the obtained parameter. | 04-29-2010 |
| 20100113076 | Method and a Device for Reduced Interference in a Cellular Access System - A method for use in a cellular system comprising a plurality of base stations with corresponding cells, in which system the communication between users in a cell and the base station is divided into an up link period and a down link period, the method comprising letting a controlling node instruct the base stations regarding: a first point in time when the base station should start transmitting a control signal; a second point in time when the base station should start to listen for control signals from other base stations and measure their time of arrival and signal strength; a third point in time when the base station should cease listening for control signal; and a fourth point in time when the base station should transmit the measurements results to a receiving node in the system. | 05-06-2010 |
| 20100118706 | Information on Reference Signal Structure for Neighboring Cell Measurements - The present invention relates to cellular radio communication and in particular to providing information on neighbour cells to enable terminals to perform neighbour cell measurements. In the prior art the terminal attempts to make neighbour cell measurements in a reference signal structure that is the same in the neighbour cell as in the cell the terminal camps in. The present invention is based on the insight that the reference signal structure may differ between neighbouring cell for example in the situation of an MBSFN area that is restricted to a region of all cells of a radio network, or in the situation of TDD mode being applied there may be different regions with different allocation of sub-frames for transmission in the uplink and downlink directions. The present invention solves the problem by broadcast information in a cell indicative of the reference signal structure in neighbour cells. | 05-13-2010 |
| 20100120441 | INCREASING A SECTORIZATION ORDER IN A FIRST SECTOR OF AN ANTENNA ARRAY - A mechanism for increasing a sectorization order in a first sector of an antenna array. The object is achieved by a method in a network node. The network node and antenna array are comprised in a wireless communication system. The antenna array is deployed with a first sectorization. The network node comprises a first number of signal connections. Each signal connection is adapted to transmit and receive signals. The method comprises the step of splitting the first number of connections into a number of groups. Each one of the respective connection groups corresponds to one respective virtual sector resulting in a number of virtual sectors. The method further comprises the step of mapping the number of virtual sectors to the first sector, such that the first sector is split into the number of virtual sectors. | 05-13-2010 |
| 20100120460 | Method and Apparatus for Improving Transmission Efficiency in a Mobile Radio Communications System - A method and apparatus of improving the performance of a mobile radio system ( | 05-13-2010 |
| 20100135173 | Method for Implicit Conveying of Uplink Feedback Information - Method and apparatus for conveying feedback reports from a data receiving party ( | 06-03-2010 |
| 20100197330 | METHOD AND ARRANGEMENT IN A TELECOMMUNICATIONS SYSTEM - A receiving unit or a transmitting unit of a wireless network, for facilitating noise and interference measurements on an air interface. The receiving unit includes: a network interface which obtains information relating to a time-varying layout of a silent resource element (RE) grid; an electronic memory having code in communication with the network interface which stores the information; and a processing unit in communication with the electronic memory that takes a presence of a silent RE grid into account in the reception of a control or a data channel. | 08-05-2010 |
| 20100222008 | Method and Arrangements for Communication of Channel Quality Information in a Telecommunications System - The present invention relates to a mobile terminal device, a base station and a method that make it possible to use a channel quality indicator, CQI, reporting format for CQI reporting from the mobile terminal device to the base station, which CQI reporting format depends on a selected transmit antenna configuration. The mobile terminal device is arranged to receive a signal from a number of transmit antennas, which signal includes a number of subcarriers, and to determine the CQI, reporting format for a collection of the subcarriers based on the selected transmit antenna configuration. The mobile terminal device is further arranged to determine a number of CQI values relating to said subcarriers in accordance with the determined CQI reporting format and to transmit the CQI values to the base station in a feedback signal. The CQI reporting format is adapted to the selected transmit antenna configuration such that the granularity of CQI reporting depends on the selected transmit antenna configuration. | 09-02-2010 |
| 20100248732 | Methods and Devices for Communicating Over a Radio Channel - The invention relates to methods and communication devices for transmitting data on a radio channel comprising the steps of determining a first preamble format to be used in a cell of the second communication device, determining a basic cyclic shift value from a set of basic cyclic shift values, the set is selected based on the preamble format, and transmitting data comprising indication of the determined first preamble format and a basic cyclic shift value pointer indicating the basic cyclic shift value in the set of basic cyclic shift values. | 09-30-2010 |
| 20100260079 | Methods and Devices for Transmitting/Receiving Data Based on the Allocation of Random Access Resources to Uplink Subframes - The invention relates to methods and communication devices in a network comprising the steps of mapping (S | 10-14-2010 |
| 20100265854 | Methods and Devices for Communicating on a Radio Channel Based on Jointly Encoding a Preamble Format with Random Access Configuration - The invention relates to devices and methods for transmitting data on a radio channel comprising to jointly encode (S | 10-21-2010 |
| 20100291937 | RESOURCE SELECTION FOR TRANSMISSION OF MULTIPLE ACK/NACK ON PUCCH CHANNEL - In a method of operating a communication network ( | 11-18-2010 |
| 20100296410 | CONFIGURATION MEASUREMENT TIME SLOTS FOR MOBILE TERMINALS IN A TDD SYSTEM - The technology applies to a cellular radio network where each cell area is associated with a radio base station in which mobile terminals communicate with at least one of the base stations over a radio interface. The mobile terminals perform mobility-related measurements on downlink signals received from a corresponding neighbor cell during time slots configured for downlink transmission measurement. A configuration node receives input information, and based on that received input information, determines measurement time slot configuration information. The node provides the measurement time slot configuration information to the base stations so that the base stations may signal the measurement time slot configuration information to mobile terminals. | 11-25-2010 |
| 20100322100 | Methods and Arrangements in a Mobile Telecommunication System - The present invention ensures that the UEs are able to make use of all the available reference signals that can be used in a cell for performing UE measurements, estimations or demodulations. That is achieved by indicating on a downlink common or shared channel, the MIMO mode settings associated with a specific network node. The indicated MIMO mode settings explicitly or implicitly indicate available common reference signals and/or dedicated reference signals to be used for said UE measurements, estimations or demodulations, which implies that measurements, estimations or demodulations can be performed based on said received indication. | 12-23-2010 |
| 20110013536 | Side Information Bits of ACK and NACK Bits in Multiple ACK/NACK Transmission - Methods and apparatus for generating, transmitting, and processing error control information in a wireless communication system are disclosed. The error control information is designed so that the probability of a NACK-to-ACK error in transmission is lower than the probability for an ACK-to-NACK error. Multiple ACK/NACK bits are transmitted along with one or more side information bits that indicate the relative quantities of ACK values and NACK values among the ACK/NACK bits. In an exemplary method for generating error control information in a communication device, a plurality of ACK/NACK bits indicating whether corresponding transport blocks were successfully received are generated. One or more side information bits are formed as a function of the ACK/NACK bits, the side information bits indicating the relative quantities of ACK values and NACK values among the ACK/NACK bits, and transmitted along with the ACK/NACK bits to the remote communication node. | 01-20-2011 |
| 20110044278 | Method and Arrangement in a Telecommunication System with Signalling of Assigned Data Packets in a Bundling Window - A method for sending a data packet from a base station to a mobile terminal includes signalling to the mobile terminal in a first subframe of a radio channel a first downlink assignment of a first data packet of a bundling window. The bundling window represents a number of data packets, already transmitted or to be transmitted to the mobile terminal, that are to be confirmed by the mobile terminal. The downlink assignment represents information about a minimum total number of data packets within the bundling window that are scheduled to be transmitted to the mobile terminal. The method also includes transmitting data packets from a base station in subframes of the radio channel using the bundling window. | 02-24-2011 |
| 20110059767 | METHOD AND APPARATUS IN A TELECOMMUNICATIONS NETWORK - According to the present invention, a receiving node of a telecommunications network ( | 03-10-2011 |
| 20110065390 | POLARIZATION CO-ORDINATION - The present invention relates to a group (G | 03-17-2011 |
| 20110075594 | Uplink Power Control in a TDD Communication System - A method performed in a wireless network includes receiving signals within a downlink frequency domain to enable channel estimation and measuring two or more signals only for two or more frequency bands of the downlink frequency domain that correspond to two or more uplink frequency bands associated with a scheduling grant or channel allocation that correspond to physical uplink channel frequency bands. The method also includes calculating path loss values for each of the frequency bands and calculating a total power based on the path loss values corresponding to the frequency bands. The method further includes determining a power allocation per frequency band based on the calculated total power to be applied to an uplink transmission and allocating the total power. | 03-31-2011 |
| 20110081932 | PUCCH Resource Allocation for Carrier Aggregation in LTE-Advanced - The invention is a method and apparatus for signaling uplink control information in a mobile communication network using carrier aggregation. The signaling mechanism allows the transmission, on a single uplink component carrier, of control information associated with a downlink transmission on multiple aggregated downlink component carriers. Semi-statically reserved resources for the transmission of control information on the uplink component carrier may be dynamically shared by user terminals that are assigned multiple downlink component carriers for downlink transmissions. Implicit or explicit resource indication can be used in combination with dynamic resource indication. | 04-07-2011 |
| 20110096693 | Method and Arrangement in a Telecommunication System - A method in a terminal for providing an ACK/NAK message to a base station is provided. The terminal counts the number of assigned downlink subframes detected from the base station resulting in k. The terminal then establishes whether each of a number of transport blocks comprised in the counted k downlink subframes is correctly received or not. In the case when each one of the transport blocks, comprised in the k downlink subframes is estimated as correctly received the terminal provides to the base station an encoded ACK message for the k subframes, which comprises k, the number of subframes. | 04-28-2011 |
| 20110103338 | Method and Devices for Providing Enhanced Signaling - Methods and devices for introducing enhanced signals into a wireless environment. The enhanced signals provide for functionality that is not specified in a communication standard corresponding to a standard of a legacy terminal. The enhanced signals can be utilized by a non-legacy terminal. The legacy terminal is incapable of processing the enhanced signals and is unable to detect the presence of the enhanced signals. | 05-05-2011 |
| 20110122819 | METHODS AND ARRANGEMENTS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to methods and arrangements in a wireless communication system that enable the use of multi-codeword transmission and ACK/NACK compression with low performance loss. It also enables the use of advanced receivers of reasonable complexity. This is achieved by a solution based on the even distribution of the symbols of separately coded blocks of information bits over the available physical resources before transmission. Each physical resource will thus carry a mixture of symbols from all blocks of information bits, which results in a more similar channel quality for the blocks of information bits. A compressed ACK/NACK message corresponding to the blocks of information bits will thus be more accurate and the performance loss due to the ACK/NACK compression can be reduced. | 05-26-2011 |
| 20110149813 | FLEXIBLE SUBFRAMES - The technology disclosed provides the ability for a subframe to be configured as a “flexible” subframe. As a result, at least three different types of subframes in a TDD system may be configured: a downlink (“DL”) subframe, an uplink (“UL”) subframe, and a “flexible” subframe. While the DL and UL subframes are preconfigured for each frame instance, the flexible subframes are dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another instance of the frame. | 06-23-2011 |
