# Oskar Mauritz, Johanneshov SE

## Oskar Mauritz, Johanneshov SE

Patent application number | Description | Published |
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20080318567 | METHOD AND SYSTEM FOR SYNCHRONIZATION IN COMMUNICATION SYSTEM - A method for uplink synchronization of a first transceiver and a second transceiver in a multi-user cellular communication system having communication resources divided into communication channels. The method includes the following steps. A first signature sequence is transmitted from the second transceiver to the first transceiver, where the signature sequence is selected from a first set of signature sequences. In the first transceiver, the received signal is correlated with at least one signature sequence from a second set of signature sequences to estimate the time of arrival of the signature sequence to synchronize transmission between the second transceiver and the first transceiver. In transmitting the first signature sequence from the second transceiver to the first transceiver, the first signature sequence constitutes at least part of a zero-correlation zone sequence. | 12-25-2008 |

20100074372 | METHOD AND APPARATUS OF DETERMINING A SET OF ZERO CORRELATION ZONE LENGTHS - A method of determining a set of Zero Correlation Zone (ZCZ) lengths, comprises: determining the length of a root sequence, and selecting such a set of ZCZ lengths that, for any cell radius, the maximum number of preambles obtained from a ZCZ length which is selected from the selected set of ZCZ lengths is closest to the maximum number of preambles determined from a ZCZ length which is selected from the set of all integers, wherein the maximum number of preambles is determined from the length of the root sequence and a ZCZ length selected. This disclosure provides a technical solution for selecting a better limited set of ZCZ lengths by which signaling overload is reduced. | 03-25-2010 |

20110176406 | Efficient Zadoff-Chu Sequence Generation - The present invention generates exponents of elements of a Zadoff-Chu sequence representing a preamble for uplink synchronization of mobile stations or a mobile station reference signal by first obtaining (S | 07-21-2011 |

20120002609 | Method and Arrangement for Positioning in a Wireless Communications System - Systems and methods provide for an increase in hearability by a user equipment (UE, | 01-05-2012 |

20120230218 | Method and Base Station for Detecting a HARQ-ACK Codeword - A method in a base station for detecting a HARQ-ACK codeword comprised in a signal received from a UE is provided. The base station knows HARQ-ACK codewords being possible to detect. The base station receives ( | 09-13-2012 |

20120257696 | GLITCH MITIGATION IN A RADIO RECEIVER - A basic idea is to determine (S | 10-11-2012 |

20120287863 | Method and System for Synchronization in Communication System - A method can be used for facilitating an uplink synchronization between a first transceiver and a second transceiver within a cell in a multi-user cellular communication system. The first transceiver receives a reference from the second transceiver and generates a set of signature sequences based on the reference. The first transceiver selects a first signature sequence from the set of signature sequences and incorporates the first signature sequence into a signal. The first transceiver transmits the signal to the second transceiver. The signal is used for a uplink synchronization between the first transceiver and the second transceiver. The set of signature sequences are generated from sequences with zero-correlation zone. | 11-15-2012 |

20120287898 | Method and System for Synchronization in Communication System - A method can be used for facilitating uplink synchronization between a first transceiver and a second transceiver within a cell in a multi-user cellular communication system. The first transceiver receives a signal for the uplink synchronization from the second transceiver. The signal includes a first signature sequence generated, at least in part, from a sequence with a zero-correlation zone. The first transceiver then performs a correlation of the signal for detection of the first signature sequence. | 11-15-2012 |

20130003880 | Estimation of Frequency Offset Between a Base Station and Mobile Terminal - A method and apparatus for frequency offset estimation exploits the differences in reference symbol timing for different channels to resolve ambiguities in the frequency offset estimation. Based on the initial frequency offset estimates, a hypothesis table is constructed providing hypothesized frequency offsets for each channel for a plurality of possible offset regions. An error metric for each offset region is calculated based on the difference of the hypothesized frequency offsets. The set of hypothesized frequency offsets that minimize the error metric is selected as the final frequency offset estimates. | 01-03-2013 |

20140105053 | ESTIMATION OF FREQUENCY OFFSET BETWEEN A BASE STATION AND MOBILE TERMINAL - A method and apparatus for frequency offset estimation exploits the differences in reference symbol timing for different channels to resolve ambiguities in the frequency offset estimation. Based on the initial frequency offset estimates, a hypothesis table is constructed providing hypothesized frequency offsets for each channel for a plurality of possible offset regions. An error metric for each offset region is calculated based on the difference of the hypothesized frequency offsets. The set of hypothesized frequency offsets that minimize the error metric is selected as the final frequency offset estimates. | 04-17-2014 |