| Patent application number | Description | Published |
|---|
| 20080205351 | Subcarrier Spacing Identification - A cellular communications system that utilizes OFDM in its radio interface is capable of utilizing either a first subcarrier spacing or a second subcarrier spacing. Which of these is presently in use is indicated by generating a first type of synchronization signal in response to the first subcarrier spacing presently being in use, and generating a second type of synchronization signal in response to the second subcarrier spacing presently being in use. Whichever of the first type of synchronization signal and the second type of synchronization signal was generated is transmitted. To distinguish between the first and second types of synchronization signals, a time domain representation of the second type of synchronization signal includes a plurality of instances of the first type of synchronization signal. | 08-28-2008 |
| 20080267303 | Synchronization for Chirp Sequences - Methods and apparatus for identifying correct peaks in outputs of matched filters in user equipment for communication systems are provided. A received signal is correlated with a replica of a synchronization signal, thereby producing a correlation output signal. Peaks are detected in the correlation output signal. The peak is tested at a plurality of predetermined locations that are based on properties of the synchronization signal, thereby producing a plurality of peak test signals. The maximum of the peak test signals is determined. | 10-30-2008 |
| 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 |
| 20090117896 | Distinguishing Between Synchronized and Asynchronous Mobile Communications Networks - A user equipment is operated in a mobile communications system, wherein a network part of the mobile communications system is capable of operating in a synchronized mode or in an asynchronous mode. Operation includes recording timing information about a periodically occurring signal received from a neighboring cell. The recorded timing information is used in a blind detection process that ascertains whether the network part of the mobile communications system is operating in the synchronized mode or in the asynchronous mode by detecting at least whether the periodically occurring signal received from the neighboring cell occurred within a predetermined window of time of a corresponding periodically occurring signal received from a serving cell. The detected operating mode of the network part of the mobile communications system is used for controlling subsequent operation of the user equipment. | 05-07-2009 |
| 20090141700 | TECHNIQUE FOR PERFORMING A RANDOM ACCESS PROCEDURE OVER A RADIO INTERFACE - The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network, A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources. | 06-04-2009 |
| 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 |
| 20090323629 | Secondary Synchronization Sequences for Cell Group Detection in a Cellular Communications System - Timing parameters and an identity of a particular one of a number of cell groups are indicated in a signal transmitted in a cellular communication system having a radio frame in a physical layer, the radio frame comprising a number of time slots. In a known one of the time slots, a synchronization signal, S | 12-31-2009 |
| 20100046425 | RANDOM ACCESS PREAMBLE SELECTION - The present invention relates to methods for establishing a connection between a user equipment and a wireless network. More particularly, the present invention relates to methods for selecting a preamble based on its power back-off metric in order to randomly access a wireless network while avoiding collisions with other user equipments attempting to access the network at the same time. | 02-25-2010 |
| 20100069084 | METHOD FOR REDUCING INTRA-CELL INTERFERENCE BETWEEN CELL PHONES PERFORMING RANDOM ACCESS - A method in a network node in control of a cell in a cellular telecommunication network for reducing intra-cell interference between user equipments (UE) residing in said cell and performing random access (RA). The method comprises the steps of arranging groups of preamble sequences where the sequences within each group are orthogonal to each other, assigning one such group to the cell, from which group the UEs performing RA randomly selects a preamble, and assigning one or more additional group(s) of preamble sequences to said cell if the RACH or traffic load exceeds a certain threshold. The invention further relates to a radio network node in a cellular telecommunication system, capable of carrying out said method. | 03-18-2010 |
| 20100120397 | CREATION AND SIGNALLING OF UE LISTS TO SUPPORT FREQUENCY SELECTIVE REPEATER OPERATION - A method of supporting frequency-selective repeaters (eNodeRs) in a wireless telecommunication system. A base station (eNodeB) classifies User Equipments (UEs) into two categories or lists of users: a white list containing UEs that may need the assistance of repeaters, and a black list containing UEs that do not need repeater assistance. The eNodeB transmits one of these two lists to the eNodeRs. The eNodeRs do not amplify resource blocks (RBs) scheduled for black list UEs. Each repeater may decide on its own whether to amplify signals for a non-black list UE by measuring signals from the UE and comparing them with predefined criteria. | 05-13-2010 |
| 20100135176 | Method and Arrangement in a Communication Network - The present invention relates to methods, a user equipment and a radio base station in a communication network, in which a downlink out-of-coverage is detected based on measurements done on a common channel or on the combination of common and dedicated channels. The out-of-coverage is then reported to the network, either using resources proactively assigned to the user equipment, or by transmitting a predetermined pattern of signature sequences assigned to the user equipment. | 06-03-2010 |
| 20100222083 | Method and Arrangement in a Telecommunication System - There is provided a method for use in a user equipment when the user equipment is in idle mode or any other low activity state, and when the user equipment bandwidth is smaller than the cell transmission bandwidth. The method comprises the steps of determining a paging position of the user equipment in the frequency domain; receiving, from the network, paging information within the user equipment reception bandwidth; and changing, if indicated by the network, the paging position of the user equipment within the cell transmission bandwidth. | 09-02-2010 |
| 20100239044 | Communications Unit and Method - The effects of interference between a communication system operating in a frequency area and another system sending out pulses affecting the frequency area can be handled by means of a of pulses communication unit (RBS | 09-23-2010 |
| 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 |
| 20100265900 | METHODS AND DEVICES FOR RANDOM ACCESS POWER CONTROL IN A COMMUNICATIONS NETWORK - The invention relates to a method in a first communication device within a communications network for designing a random access transmission power setting of the first communication device comprising to receive ( | 10-21-2010 |
| 20100265968 | Synchronization Time Difference measurements in OFDM Systems - Disclosed herein are methods and devices for determining a received time difference between a first OFDM signal received from a first base station and a second OFDM signal received from a second base station. The methods and apparatus disclosed herein may be applied to 3GPP LTE systems as well as other OFDM-based wireless communication systems. An exemplary method comprises determining a decoding synchronization time for each of the first and second OFDM signals and calculating a time difference between the respective decoding synchronization times. The calculated time difference is transmitted by the mobile terminal to the first base station, the second base station, or both. Methods and apparatus for processing, at a base station, time difference information calculated according to the methods herein and transmitted to the base station by a mobile terminal are also presented. | 10-21-2010 |
| 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 |
| 20110014911 | METHOD AND ARRANGEMENT FOR REPEATER/RELAY CONTROL - In a method in a controllable repeater in a telecommunication system, said system comprising a radio base station, at least said controllable repeater and a plurality of user terminals, receiving a list of associated user terminal identities for said repeater, and searching for and decoding downlink channel control messages based on said provided list. | 01-20-2011 |
| 20110039580 | RADIO FINGERPRINT METHOD IN A POSITIONING NODE FOR PROVIDING GEOGRAPHIC REGION DATA - A method for providing geographic region data includes receiving geographic position data associated with a location point of a first user equipment and receiving a first radio fingerprint. The method also includes associating the received first radio fingerprint with the received geographic position data and clustering the received geographic position data to create cluster boundaries defining geographical region data. The method further includes receiving a second radio fingerprint and comparing the second radio fingerprint received from the second user equipment with previously received radio fingerprints being associated with geographic region data, and if the second radio fingerprint corresponds to a previously received radio fingerprint, associating the geographic region data of the previously received radio fingerprint with the location point of the second user equipment, and providing the geographic region data, associated with the location point of the second user equipment. | 02-17-2011 |
| 20110044199 | Method for Determining the Round Trip Time - A method in a first node for determining a round trip time of a signal sent between the first node and a second node includes sending a first signal to the second node and receiving a second signal, corresponding to the sent first signal. The second signal is sent from the second node as a response to the sent first signal. The method also includes computing the round trip time of the signal and sending the computed round trip time to the second node. | 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 |
| 20110065453 | METHOD FOR PROVIDING GEOGRAPHICAL POSITION RELATED INFORMATION IN A WIRELESS NETWORK - Method and arrangement in a first node for providing geographical position related information. The first node and a second node are comprised within a wireless communication system. The first node and the second node are adapted to exchange wireless signals. The method comprises receiving a signal from the second node. Apart of the received signal that has propagated through a first channel path from the second node is detected by using a circular correlator. A timing estimate associated with the propagation time of the part of the signal which is received over the first channel path from the second node is calculated. Thus the calculated timing estimate is provided, which timing estimate is to be used when determining the geographical position. | 03-17-2011 |
| 20110070905 | METHOD FOR TRANSMISSION OF MBMS CONTROL INFORMATION IN A RADIO ACCESS NETWORK - The present invention relates to multimedia broadcast and multicast services, MBMS, in a cell wherein variable transmission bandwidth is employed. In particular the invention relates to transmission of MBMS control information relating to broadcast and multicast services. According to the method and arrangement of the invention the manner in which the transmission of MBMS control information is performed and/or the content of the MBMS control information is determined based on the amount and the portion of the cell bandwidth that is used for MBMS transmission. | 03-24-2011 |
| 20110080838 | Methods and Arrangements in a Mobile Telecommunication Network - Methods and apparatus for distributing available transmit power in a user equipment (UE) to avoid violation of UE power limitations on a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH) are described. Available power for transmission on at least the PUCCH is determined and at least one power headroom report indicating available power for transmission on at least the PUCCH is transmitted to a base station. | 04-07-2011 |
| 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 |
| 20110086658 | Random Access Mode Control Method and Entity - A method of controlling a random access mode in a cell of a cellular communication system, said cell being operable in a first random access mode associated with a first set of random access identification sequences or in a second random access mode associated with a second set of random access identification sequences/said random access identification sequences to be used by terminals (UEI . . . UEn) performing a random access operation in said cell, where said second set of random access identification sequences is arranged for avoiding misidentifications due to sequence alterations occurring in transmissions from said terminals (UEI . . . -UEn), the method comprising: performing a sequence alteration analysis based on the an output of a random access identification sequence detector in a network entity, and if a mode switching condition is determined on the basis of the sequence alteration analysis, automatically switching operation of said cell from one of said random access modes to the other of said random access modes. | 04-14-2011 |
| 20110105105 | Methods and Arrangements in a Wireless Communication System - The present invention relates to methods, a user equipment and a radio base station in a wireless communication system supporting carrier aggregation. The user equipment is configured to receive data from the radio base station in a first cell, and the radio base station is configured to broadcast system information comprising configuration parameters in the first and in a second cell. An example method for the user equipment comprises receiving configuration information for an aggregation of the first and the second cell, and information on how to apply the system information broadcasted in the second cell from the radio base station. The method further comprises reading the system information broadcasted in the second cell, and applying the read system information in accordance with the received instruction. | 05-05-2011 |
| 20110105121 | E-UTRAN AND HANDOVER - The present invention relates to a method, a base station and an interface for handover in a wireless communication network. Handover is initiated when the signal quality falls below a predetermined value. Random access serves as an uplink procedure to enable the UE to make handover from a first base station (eNodeB) to a suitable second base station (eNodeB). In the present invention, random access parameters are exchanged between second and first base station before said first base station signals said random access parameters to said user equipment. | 05-05-2011 |
| 20110105165 | Methods and Arrangements in a Wireless Communication System - The present invention relates to methods and arrangements in a wireless communication system supporting carrier aggregation and comprising a radio base station configured to broadcast system information in at least two cells. The method for the user equipment comprises receiving configuration information for an aggregation of the at least two cells from the radio base station, identifying a first of the at least two cells based on a configuration rule stating that the first of the at least two cells has a status that is different from the status of the remaining cells, and reading the broadcasted system information only in the identified cell. The method may also comprise obeying one or more parameters obtained from the read system information. | 05-05-2011 |
| 20110117942 | METHOD AND ARRANGEMENT IN A COMMUNICATION SYSTEM - Method and arrangement in a base station, a user equipment and a positioning node, for sending, and obtaining, respectively, a value of a propagation delay of a signal. The signal is sent to the base station from a user equipment. The base station and the user equipment are comprised within a wireless communication system. Also, the base station and the user equipment are adapted to exchange wireless signals. The method is characterised by the step of receiving a signal sent from the user equipment. The method is further characterised by the step of measuring the value of the signal propagation delay of the received signal. Still further, the method is characterised by the step of sending the measured value to the equipment and/or to a positioning node comprised within the wireless communication system. | 05-19-2011 |
| 20110128997 | Tensor-Based Receiver for Separating Component Signals in a Composite Signal - A receiver separates multiple component signals carried in a composite signal that have been spread over time and frequency. Multiple diversity branches receive the composite signal. A tensor generation circuit arranges samples of that signal along time, frequency, and diversity dimensions to obtain a composite signal tensor. A set of cascaded least squares estimators then separates the component signals by fitting a constrained tensor model of the composite signal to the composite signal tensor in an alternating least squares estimation process, alternating during any given iteration of the process between fitting different unfolded representations of the constrained tensor model to corresponding unfolded representations of the composite signal tensor. The tensor model models the composite signal as a linear combination of rank-one tensors associated with the component signals, and is constrained in the sense that each rank-one tensor remains constrained according to the spreading of its associated component signal over time. | 06-02-2011 |
| 20110141985 | Method and Arrangement for Reconfiguring Mapping of Carrier Indicator Field to Component Carrier - A method and an arrangement in a radio network node for reconfiguring mappings from Carrier Indicator Field-values to component carriers are provided. Each CIF-value is mapped to a respective component carrier comprising a respective shared data channel. Each respective shared data channel corresponds to at least one downlink control channel carrying said each CIF-value. The radio network node reconfigures mappings from CIF-values to component carriers, while at least one mapping of CIF-value to component carrier is maintained. The component carrier of said at least one mapping from CIF-value to component carrier comprises said at least one downlink control channel and a shared data channel corresponding to said at least one downlink control channel. The radio network node sends at least one of the reconfigured mappings from CIF-values to component carriers to the user equipment. | 06-16-2011 |
