| Patent application number | Description | Published |
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| 20100015988 | Method and Arrangement for Allocating Radio Resources in a Communication System - The present invention relates to a method and an arrangement of facilitating the allocation of radio resources in a communication network, comprising a communication network node ( | 01-21-2010 |
| 20100039990 | Method and Arrangement in a Wireless Communications System - A method for assisting the adaptation of a signal from a first node ( | 02-18-2010 |
| 20100046650 | Method for Precoding Using a Block Diagonal Matrix - An objective problem of the invention is to provide a mechanism for improving the performance of a radio access network. According to a first aspect of the present invention, the object is achieved by a method in a first node for adapting a multi-antenna transmission to a second node over an effective channel. The first node and the second node are comprised in a wireless communication system. The method comprises the steps of obtaining at least one symbol stream and determining a precoding matrix having a block diagonal structure. The method comprises the further steps of precoding the at least one symbol stream with the determined precoding matrix, and transmitting the at least one precoded symbol stream over the effective channel to the second node. | 02-25-2010 |
| 20100046651 | METHOD FOR DETECTING TRANSMISSION MODE IN A SYSTEM USING MULTIPLE ANTENNAS - A user terminal, a communication network, a computer readable medium and a method for selecting at the user terminal a reception and decoding of a transmission mode used by a base station, the user terminal receiving communicated information from the base station, which has multiple antennas, via plural channels, the plural channels including a primary broadcast channel and at least one control channel. The method includes receiving at the user terminal initiating data from the base station via the primary broadcast channel, detecting from the received initiating data whether a first or a second transmission mode is used by the base station for the primary broadcast channel, the first transmission mode indicating that a first number of antennas are used by the base station and the second transmission mode indicating that a second number, different than the first number, of antennas are used by the base station to communicate with the user terminal, and using the detected first or second transmission mode of the primary broadcast channel to decode the at least one control channel. | 02-25-2010 |
| 20100067605 | Method and Arrangement for Adapting a Multi-Antenna Transmission - A method in a first node for adapting a multi-antenna transmission to a second node over a wireless channel is provided. The wireless channel has at least three inputs and at least one output. The first node and the second node are comprised in a wireless communication system. The method comprising the steps of: Obtaining ( | 03-18-2010 |
| 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 |
| 20100104037 | Method And Device For Interference Suppression In User Terminal - A user terminal [ | 04-29-2010 |
| 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 |
| 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 |
| 20100281333 | FEEDBACK WITH UNEQUAL ERROR PROTECTION - Methods and devices provide a feedback message having unequal error protection. The feedback message may include channel quality indicators. The channel quality indicators may have different levels of error protection based on a transmission property. | 11-04-2010 |
| 20100284483 | PRECODER FOR SPATIAL MULTIPLEXING, MULTIPLE ANTENNA TRANSMITTER - A transmitter ( | 11-11-2010 |
| 20100284484 | OPEN LOOP PRECODER CYCLING IN MIMO COMMUNICATIONS - Data is transmitted over multiple input multiple output (MIMO) channels. Plural bit streams are modulated into multiple data symbol vectors. Each vector has a transmission rank with one vector for each MIMO channel. Transmission rank is the number of elements in a data symbol vector corresponding to the number of data streams being transmitted in parallel over each MIMO channel. The multiple data symbol vectors are preceded into multiple precoded symbol vectors using a plurality of precoder cycling sets, one set for each transmission rank including multiple different precoders. The precoders in each precoder cycling set are well-separated with respect to a plurality of distance measures. The precoding includes precoding each data symbol vector of a transmission rank with a precoder belonging to the precoder cycling set of that transmission rank. The precoded symbol vectors are then transmitted over the MIMO channels. | 11-11-2010 |
| 20100304691 | Method And Arrangements For Signaling Control Information In A Communication System - The invention relates to devices and methods for signalling control information associated with transmission of data over a wireless channel. A second communication device receives (S | 12-02-2010 |
| 20100309801 | METHODS AND ARRANGEMENTS IN A MOBILE TELECOMMUNICATIONS SYSTEM - The present invention relates to a solution for taking into account that the interference, which each of the transmission resource elements is affected by, may differ between the different transmission resource elements when determining an interference estimate by determining a mixed interference estimate, e.g. based on both reference symbols and data symbols. Furthermore, signalling from the network is also introduced which makes it possible to control what the mixed interference estimate should be based on. | 12-09-2010 |
| 20100315969 | Methods and Arrangements in a Communication System - A method and arrangement in a first node ( | 12-16-2010 |
| 20100322330 | Mode Switching Between SU-MIMO and MU-MIMO - The present invention relates to a method and arrangements in a communication system for Multi User Multiple-Input-Multiple-Output (MU-MIMO) signaling via Multiple-Input-Multiple-Output (MIMO) antennas between a base station and one of a plurality of mobile terminals supporting both Single User and Multi User Multiple-Input-Multiple-Output (SU-MIMO and MU-MIMO) signaling modes. Switching between the modes is supported in the system and the modes have partly shared signaling. SU-MIMO mode signaling which is redundant, i.e. not needed, for MU-MIMO mode signaling is identified. Bits, i.e. data bits, of the identified redundant signaling is re-interpreted or re-defined to comprise signaling information associated with MU-MIMO mode. The signaling information associated with MU-MIMO mode is signaled to the mobile terminal by using the reinterpreted redundant bits. | 12-23-2010 |
| 20110002233 | Link Quality Estimation Method and Apparatus in a Telecommunication System - Method and apparatus for enabling accurate link quality estimation of a wireless link between a sending node ( | 01-06-2011 |
| 20110007657 | Neighbour Cell Quality Measurement in a Telecommunications System - The present invention relates to methods and arrangements for neighbour cell quality measurements using silent resource element (RE) grids, and as well to a silent RE grid. | 01-13-2011 |
| 20110007698 | Methods and Arrangements for a Mobile Communications Network - The present invention relates to an improved procedure for synchronization of re-configuration of RRC procedures between the radio base station and the UE. This is achieved by associating a new configuration to be used by a UE with an additional UE identity. The UE is normally identified by a first UE identity, but is informed in a re-configuration message that the UE also has the additional UE identity. The UE is identified by the additional UE identity when the new configuration is to be activated. Hence, when the radio base station detects that the UE responds to requests, which included the additional UE identity, the radio base station can conclude that the UE has activated the new configuration. | 01-13-2011 |
| 20110032895 | Method and Apparatus for Transmitting CSI on the PUSCH in an LTE System - The present invention relates to allowing configuring CSI reporting (step S- | 02-10-2011 |
| 20110039497 | Compensation for Propagation Delay in a Wireless Communication System - In a first aspect the present invention relates to a method of compensating for propagation delay in a wireless communication system. A first base station is in communication with a first plurality of antenna units which are adapted to be in wireless communication with a first terminal. The first terminal having a terminal antenna. The first plurality of antenna units is spatially separated. The method according to the first aspect comprises the steps of determining relative propagation delay from each of the first plurality of antenna units to the terminal antenna and using the determined propagation delay to establish a delay profile to compensate for propagation delay from each of the antenna units to the first terminal and applying the delay profile to a transmission between the base station and the terminal. In a second aspect the present invention further relates to a system implementing the method according to the first aspect. | 02-17-2011 |
| 20110080969 | MULTI-GRANULAR FEEDBACK REPORTING AND FEEDBACK PROCESSING FOR PRECODING IN TELECOMMUNICATIONS - A communications system comprises a second device ( | 04-07-2011 |
| 20110085507 | Method and Apparatus for Conveying Precoding Information in a MIMO System - Method and apparatus for conveying precoding information in a control message from a first node to a second node, with information on properties of an associated wireless data transmission (D) between the first and second nodes employing spatial multiplexing and precoding for the data transmission. The first node determines precoding parameters for signal transmission to the receiving node, optionally based on feedback reports from the receiving node. The first node encodes control information bits in precoding information fields of the control message by means of values in TBS fields of the control message, such that the TBS field values determine the interpretation of the bits in the precoding information field(s). The control message is then sent to the second node. | 04-14-2011 |
| 20110110403 | METHODS AND APPARATUS USING PRECODING MATRICES IN A MIMO TELECOMMUNICATIONS SYSTEM - The present invention provides methods and apparatus for transmitting and receiving over a MIMO radio link. In particular, a preceding matrix is applied to transmitted signals and constrained in such a way so as to limit the additional peak to average power ratio (PAPR) caused by applying the precoding matrix. For example, each row of the precoding matrix may have at least one zero element and one non-zero element, and each column may have at least one non-zero element. | 05-12-2011 |
| 20110128930 | Method for Link Adaptation with a Signal Quality Margin on the Bandwidth - Method and arrangement in a base station for selecting a transmission parameter. The selected transmission parameter is used when sending a signal over a radio channel to a user equipment in a wireless communication network. The radio channel is allocated bandwidth for signalling. The method comprises the step of obtaining an estimation of the signal quality of the radio channel. Also, the allocation to the radio channel. Further yet, the method may comprise the step of calculating a signal quality margin, which signal quality margin is based on the bandwidth size. Still further, the method comprises the step of selecting the transmission parameter based on the estimated signal quality of the radio channel and the calculated signal quality margin. | 06-02-2011 |
| 20110145672 | HARQ Process Continuation after CQI-Only Report - Techniques for controlling synchronous HARQ retransmissions are disclosed, in which non-adaptive retransmissions scheduled for a first transmission time interval are automatically deferred to a later transmission time interval in the event that a control message prohibiting the retransmission during the first transmission interval is received. In an exemplary method, a NACK message is received ( | 06-16-2011 |
