| Patent application number | Description | Published |
|---|
| 20080316091 | Accuracy Assessment in Assisted Gps Positioning - Reliable and efficient search windows are provided by allowing the adaptation of the code search window to be dependent on inaccuracy measures of relations between a cellular frame time and a satellite reference time. This inaccuracy is calculated in a positioning node ( | 12-25-2008 |
| 20090028088 | METHOD AND ARRANGEMENTS RELATING TO SATELLITE-BASED POSITIONING - The present invention relates to methods and apparatuses as well as a measurement report signal for reporting measurements on ranging signals (RS | 01-29-2009 |
| 20090238086 | Rank Dependent CQI Back-Off - In a wireless communication network UE, an estimated signal to interference and noise ratio (SINR) is calculated for each potential transmission mode, and is reduced by a calculated SINR back-off value in response to errors detected in decoding data in each of a plurality of data streams. A Channel Quality Indicator CQI is then generated based on the reduced SINRs. Reducing the SINR estimates in the presence of known data errors allows a UE to more accurately track a target BLER. | 09-24-2009 |
| 20090238250 | REDUCED COMPLEXITY FREQUENCY BAND AND VIRTUAL ANTENNA COMBINATION (VAC) SELECTION - A downlink Channel Quality Indicator (CQI) is estimated in two steps. Initially, one or more subsets of received reference symbols are selected. If the transmitter may transmit signals in one or more of two or more frequency bands, optimal frequency bands are selected based on a first subset of reference symbols. If the transmitter may transmit using one of two or more VACs, an optimal VAC is selected based on the first or a second subset of reference symbols. An SINR is subsequently calculated for the selected frequency band and VAC combination, based on more than the subset(s) of reference symbols. | 09-24-2009 |
| 20090239474 | SIMPLIFIED IMPAIRMENTS MATRIX CALCULATION FOR SINR ESTIMATION - A recursive method of calculating an inverse impairments matrix is used to generate an SINR estimate, which in turn is used to generate a CQI estimate. The recursive inverse impairments matrix calculation avoids the need to perform a computationally intensive matrix inversion, allowing for faster CQI estimate generation and consuming less power. | 09-24-2009 |
| 20090323596 | Scheduling For Uplink And Downlink Time Of Arrival Positioning - The present invention relates to methods and arrangements for scheduling of positioning channels and traffic in order to recover a sufficiently perfect orthogonality including scheduling tasks for the downlink and uplink direction. A scheduling manager co-ordinates the scheduling and measurement timing of first and second positioning schedulers that, respectively, allocate uplink and downlink radio resources. | 12-31-2009 |
| 20100109952 | Transformation of positioning reporting formats - The present invention relates to a method and arrangement for achieving transformations of received positioning information according to a first reporting format to positioning information according to a second format such as to allow a seamless transformation and handling of the positioning confidence values, i.e. the probability that the terminal is actually located in the region determined by the applied positioning method. The method derives an approximation of the shape-defining parameters for the second reporting format such as to minimize a criterion function including the predefined target confidence value and determining the deviation of the confidence value for the approximated shape from the target confidence value. | 05-06-2010 |
| 20100173645 | Method And Arrangements In A Mobile Telecommunication Network - The present invention relates to a method and an arrangement in a mobile telecommunication network for detection of a UE transmitted signal. The arrangement comprises means for detecting the signal during the time t | 07-08-2010 |
| 20100178940 | METHOD AND ARRANGEMENT FOR POSITIONING IN A MOBILE TELECOMMUNICATION NETWORK - The present invention relates to a positioning node and method for determining a position of a target UE in a cellular mobile telecommunication network. The network comprises means for identifying the RBS that the target UE is connected to, whereby the location of the identified RBS is known, and means for selecting a first and a second additional UE, wherein at least one of the first and second additional UEs is connected to a RBS that is different from the RBS that the target UE is connected to. The positioning node comprises input means adapted to receive information associated with measurement of the round-trip-time between the target UE and the identified RBS, information associated with measurement of the round-trip-time between the first additional UE and the RBS it is connected to, information associated with measurement of the round-trip-time between the second additional UE and the RBS it is connected to, information associated with measurements between the target UE and a first additional UE, information associated with measurements between the target UE and a second additional UE, information associated with measurements between the first additional UE and the second additional UE, and a calculator adapted to determine the position of the target UE by using the knowledge of the identified RBS and the received information. | 07-15-2010 |
| 20100240392 | Angle of Arrival Downlink Signaling - A wireless communication network determines positioning data for a given mobile terminal, in response to receiving a positioning event trigger for that mobile terminal. The network sends the positioning data to the mobile terminal via control-plane signaling, for transfer by the mobile terminal to the user plane. Correspondingly, the mobile terminal receives the positioning data over the control plane, transfers it to the user plane, and transmits the positioning data or location information derived from the positioning data, via user-plane signaling. As such, network-performed positioning measurements and/or geographic coordinate data derived therefrom are transferred from the control plane, to the user plane, for flexible and transparent transmission from the mobile terminal to a given node having a user-plane connection with the mobile terminal. Such a node may be essentially any type of communication device, system, or server, internal or external to the network. | 09-23-2010 |
| 20100323723 | Base Station Mapping with Angle-of-Arrival and Timing Advance Measurements - Methods and apparatus for determining a position estimate for a base station transceiver node in a wireless communication system are disclosed. Angle-of-arrival and/or timing advance measurements corresponding to transmissions received from mobile stations for which geographic locations are already known are combined with known locations for the mobile stations to estimate the position of the base station receiving the transmissions. This estimated base station position may be used, for example, in subsequent positioning of mobile stations for which locations are not already known, such as mobile stations not equipped with GPS technology. The estimated base station position may also be used to update a database of base station coordinates for the wireless network. | 12-23-2010 |
| 20110085627 | INTERFERENCE REJECTION COMBINING FOR MULTI-USER MIMO TELECOMMUNICATIONS SYSTEM - Method and apparatus are provided for processing a received signal for making a symbol estimate of a symbol included in a signal transmitted in a Multiple-Input-Multiple-Output (MIMO) system. In an example mode, the method comprises (1) providing at least a sub-set of precoding matrices which are candidates for use in transmission of an interfering signal in a MIMO system; (2) using the received signal and plural candidates of the subset to determine corresponding plural covariance matrices, each of the plural covariance matrices being formed using a corresponding candidate precoding matrix; (3) determining which of the candidates is a trace minimizing candidate which is associated with one of the plural covariance matrices that has a minimum trace value; (4) forming a weighting matrix using the trace minimizing candidate; and (5) using the weighting matrix to make the symbol estimation. | 04-14-2011 |
| 20110105144 | Method, apparatus and system for defining positioning configuration in a wireless network - GPS and A-GPS based positioning methods can be used to determine UE locations to enable location based services to be provided. However, if a UE does not have such receivers or the wireless network is not able to provide assistance, these methods will not be applicable. An alternative is to use OTDOA measurements using positioning reference signals transmitted by cells of the network. By optimizing the set of cells transmitting their positioning reference signals on different positioning occasions and properly configuring the muting patterns, interference can be minimized and the UE location can be readily determined. | 05-05-2011 |
| 20110159886 | METHOD AND APPARATUS FOR POSITION DETERMINATION IN A CELLULAR COMMUNICATIONS SYSTEM - A scaling apparatus and method scales uncertainty criteria (horizontal and vertical accuracy requirements) originally received from an end user before the uncertainty criteria is sent on to a wireless terminal ( | 06-30-2011 |
