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1. 发明申请

WO2012060751A1 A RADIO BASE STATION AND A METHOD THEREIN FOR ESTIMATING A DOPPLER SPREAD 审中-公开
标题翻译：无线电台站及其估计多普勒频段的方法
公开(公告)号：WO2012060751A1
公开(公告)日：2012-05-10
申请号：PCT/SE2010/051203
申请日：2010-11-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , MAURITZ, Oskar , PETERS, Gunnar
发明人： MAURITZ, Oskar , PETERS, Gunnar
IPC分类号： H04B7/01 , H04L25/02
CPC分类号： H04L25/0222 , H04B7/04 , H04B7/0667 , H04B7/10
摘要： Embodiments herein relate to a method in a radio base station (12) for estimating Doppler spread of a signal transmitted by a user equipment (10) over a channel in a radio communications network. The radio base station (12) and user equipment (10) are comprised in the radio communications network. The radio base station (12) receives a first signal and a second signal from the user equipment (10), which first signal and second signal are based on the signal transmitted by the user equipment (10). The first and second signals are separated in space, time and/or polarisation. The radio base station (12) estimates a first channel estimate of the received first signal by comparing the received first signal to a known signal, and a second channel estimate of the received second signal by comparing the received second signal to the known signal. The radio base station (12) determines a ratio of the first channel estimate to the second channel estimate, and estimates an autocorrelation function of a function of the determined ratio. The radio base station (12) then estimates the Doppler spread based on the estimated autocorrelation function.
摘要翻译：本文的实施例涉及一种无线电基站（12）中用于估计在无线电通信网络中的信道上由用户设备（10）发送的信号的多普勒扩展的方法。无线电基站（12）和用户设备（10）包括在无线电通信网络中。无线电基站（12）从用户设备（10）接收第一信号和第二信号，该第一信号和第二信号基于用户设备（10）发送的信号。第一和第二信号在空间，时间和/或极化中分离。无线电基站（12）通过将接收到的第一信号与已知信号进行比较来估计接收到的第一信号的第一信道估计，以及通过将接收的第二信号与已知信号进行比较来接收第二信号的第二信道估计。无线电基站（12）确定第一信道估计与第二信道估计的比率，并且估计所确定的比率的函数的自相关函数。然后，无线电基站（12）基于估计的自相关函数来估计多普勒扩展。

2. 发明申请

WO2011075024A1 GLITCH MITIGATION IN A RADIO RECEIVER 审中-公开
标题翻译：无线电接收器中的减速
公开(公告)号：WO2011075024A1
公开(公告)日：2011-06-23
申请号：PCT/SE2009/051457
申请日：2009-12-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , MAURITZ, Oskar , ÅHLANDER, Mats , HUSS, Fredrik
发明人： MAURITZ, Oskar , ÅHLANDER, Mats , HUSS, Fredrik
IPC分类号： H03G3/30 , H04L27/38
CPC分类号： H04L27/3809
摘要： A basic idea is to determine (S1) occurrence of a glitch caused by operation of the AGC mechanism, identify (S2) those modulation symbols in a digitized version of the received signal that are affected by the glitch, each modulation symbol represented by a number of bits in combination, and then reduce (S3), for each of the identified modulation symbols, the contribution in representing the identified modulation symbol as provided by at least a subset of the bits of the modulation symbol. In this way, the adverse effects of the glitch can be effectively mitigated and subsequent detection of the desired signal can be significantly improved. This also means that the link performance will be significantly improved.
摘要翻译：一个基本思想是确定（S1）由AGC机构的操作引起的毛刺的发生，识别（S2）受毛刺影响的接收信号的数字化版本中的那些调制符号，每个调制符号由数字的比特，然后对于每个所识别的调制符号，减少（S3）表示由调制符号的比特的至少一个子集提供的所识别的调制符号的贡献。以这种方式，可以有效地减轻毛刺的不利影响，并且可以显着地提高所需信号的随后检测。这也意味着链路性能将显着提高。

3. 发明申请

WO2022191749A1 PHYSICAL RANDOM ACCESS CHANNEL (PRACH) RECEIVER FOR DETERMINING CELLS IN WHICH A PREAMBLE HAS BEEN TRANSMITTED 审中-公开
公开(公告)号：WO2022191749A1
公开(公告)日：2022-09-15
申请号：PCT/SE2021/050221
申请日：2021-03-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： HURD, Magnus , MAURITZ, Oskar
IPC分类号： H04W74/08 , H04L5/00 , H04W56/00 , H04W74/00 , H04W24/00 , H04W52/34 , H04W72/04
摘要： A method (300) for determining cells in which a preamble has been transmitted. The method includes obtaining (s302) N sample sets, wherein each one of the N sample sets comprises a set of M samples and each one of the N sample sets is associated with a different cell included in a set of N cells. The method also includes adding (s304) the N sample sets to create a first combined set of samples comprising M samples. The method also includes forming (s306) a first candidate set of one or more tuples based on the first combined set of samples and an initial set of tuples comprising a plurality of tuples, wherein each tuple comprises a candidate preamble and a candidate delay, and wherein each candidate preamble comprises a set of samples. The method further includes using (s308) the first candidate set of one or more tuples to determine, for each cell included in the set of cells, whether a preamble included in the first candidate set of tuples was transmitted in the cell.

4. 发明申请

WO2021160258A1 TIME-OF-ARRIVAL DETERMINATION OF A PRACH PREAMBLE 审中-公开
公开(公告)号：WO2021160258A1
公开(公告)日：2021-08-19
申请号：PCT/EP2020/053615
申请日：2020-02-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ZHANG, Yang , MAURITZ, Oskar
IPC分类号： H04W56/00
摘要： There is provided mechanisms for determining time-of-arrival of a PRACH preamble. A method is performed by a radio access network node. The radio access network node is configured for beamformed communication in a set of beams. The method comprises receiving, from a UE and at a TRP of the radio access network node, a PRACH preamble. The method comprises determining a weight factor value for the PRACH preamble. The weight factor value is dependent on beam information mapped to the PRACH preamble. The beam information identifies one of the beams in the set of beams. The method comprises determining time-of-arrival of the PRACH preamble using hypothesis testing that incorporates the weight factor value.

5. 发明申请

WO2018160111A1 RANDOM ACCESS PREAMBLE SLOT ALLOCATION 审中-公开
公开(公告)号：WO2018160111A1
公开(公告)日：2018-09-07
申请号：PCT/SE2017/051303
申请日：2017-12-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： SAHLIN, Henrik , MAURITZ, Oskar , REIAL, Andres
IPC分类号： H04L5/00 , H04W74/08
摘要： An example method for transmitting a random access preamble comprises selecting (502) a random access preamble configuration from a plurality of predetermined random access preamble configurations. The method further includes determining (504) a time interval in which to transmit the random access preamble. The method further comprises transmitting (506) the random access preamble according to the selected random access preamble configuration. Each of the plurality of random access preamble configurations comprises a combination of (a) a single root sequence from a predetermined set of one or more root sequences, (b) a single cyclic shift of a predetermined plurality of cyclic shifts for the root sequence, and (c) a single starting position of two or more predetermined starting positions within time intervals allocated for random access preamble transmission.

6. 发明申请

WO2010020291A1 EFFICIENT ZADOFF-CHU SEQUENCE GENERATION 审中-公开
标题翻译：有效的ZADOFF-CHU序列生成
公开(公告)号：WO2010020291A1
公开(公告)日：2010-02-25
申请号：PCT/EP2008/061031
申请日：2008-08-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , MAURITZ, Oskar
发明人： MAURITZ, Oskar
IPC分类号： H04J13/00
CPC分类号： H04W72/0466 , H04J13/0062 , H04J13/10 , H04J2011/0096 , H04L5/0048
摘要： 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 (Sl) a preamble index defining the Zadoff-Chu sequence. Then it determines an initial exponent (S3) of the first element in the Zadoff-Chu sequence and an initial first difference (S2, S4) between exponents of consecutive elements of the Zadoff-Chu sequence. Finally it determines (S5-S9) exponents of the remaining elements in the Zad- off-Chu sequence from the initial first difference and the initial exponent in an iterative procedure that avoids multiplication operations.
摘要翻译：本发明通过首先获得（S1）定义Zadoff-Chu序列的前导索引（S1）来生成表示用于移动站的上行链路同步的前导码或移动站参考信号的Zadoff-Chu序列的指数。然后，确定Zadoff-Chu序列中的第一个元素的初始指数（S3）和Zadoff-Chu序列的连续元素的指数之间的初始第一个差值（S2，S4）。最后，它从初始的第一个差值和避免乘法运算的迭代过程中的初始指数确定了Zad-off-Chu序列中剩余元素的指数（S5-S9）。

7. 发明申请

WO2021054873A1 MULTI-SITE RANGE RATE MEASUREMENT COMPILATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2021054873A1
公开(公告)日：2021-03-25
申请号：PCT/SE2019/050884
申请日：2019-09-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MAURITZ, Oskar , YASINI, Sholeh , WIGREN, Torbjörn
IPC分类号： G01S5/00 , G01S11/10 , G01S5/02 , H04W64/00
摘要： A method for providing motion information of a UE (10) in a wireless communication system (1). The method comprises initiating, in a first network node (30, 20 A), of a first Doppler shift measurement concerning the UE. In the first network node, a transfer of requests for second Doppler shift measurement concerning the UE is initiated to second network nodes (30, 20B). Data representing the first Doppler shift measurement is obtained in the first network node. Data representing the second Doppler shift measurements is obtained in the first network node. An estimated motion, in more than one dimension, of the UE is determined in dependence of at least the obtained data representing the first Doppler shift measurement and the obtained data representing the second Doppler shift measurements. A method for assisting by the second network node, as well as network nodes performing the methods are also disclosed.

8. METHODS, APPARATUS AND MACHINE-READABLE MEDIUMS RELATING TO CONFIGURATION OF REFERENCE SIGNALS IN A WIRELESS COMMUNICATION NETWORK" type="checkbox" autocomplete="off"> 发明申请

METHODS, APPARATUS AND MACHINE-READABLE MEDIUMS RELATING TO CONFIGURATION OF REFERENCE SIGNALS IN A WIRELESS COMMUNICATION NETWORK" data-target=".WO2020204786A1-translate-title" href="/patent/WO2020204786A1.html?ds=all&p=1" target="_blank"> WO2020204786A1 METHODS, APPARATUS AND MACHINE-READABLE MEDIUMS RELATING TO CONFIGURATION OF REFERENCE SIGNALS IN A WIRELESS COMMUNICATION NETWORK 审中-公开

METHODS, APPARATUS AND MACHINE-READABLE MEDIUMS RELATING TO CONFIGURATION OF REFERENCE SIGNALS IN A WIRELESS COMMUNICATION NETWORK" onerror="this.onerror=null;this.src='/images/no_image.jpg';$(this).attr('data-original', '/images/no_image.jpg');" data-original="" src="" data-zoom="viewer"/>

公开(公告)号：WO2020204786A1

公开(公告)日：2020-10-08

申请号：PCT/SE2020/050312

申请日：2020-03-26

申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

发明人： MAURITZ, Oskar , OVESJÖ, Fredrik

IPC分类号： H04L1/00 , H04L5/00 , H04W24/10 , H04W72/04

摘要： A wireless device is configured to utilize a first carrier for accessing a communication network, the first carrier being implemented according to a first radio-access technology (RAT) and having a first transmission frequency band, the communication network further provides for network access via a second carrier, the second carrier being implemented according to a second RAT and having a second transmission frequency band, the second transmission frequency band at least partially overlaps with the first transmission frequency band. A method performed by the wireless device comprises: receiving a configuration message for the first carrier from a network node, the configuration message comprising an indication of resources in which the wireless device is configured with reference signals according to the first RAT. The resources in which the wireless device is configured with reference signals according to the first RAT are defined to enable mapping of resources for a data channel on the first carrier around one or more signals transmitted on the second carrier according to the second RAT.

9. 发明申请

WO2018226137A1 METHODS, APPARATUS AND MACHINE-READABLE MEDIUMS FOR GENERATION AND TRANSMISSION OF A MESSAGE IN A WIRELESS COMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2018226137A1
公开(公告)日：2018-12-13
申请号：PCT/SE2018/050461
申请日：2018-05-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LAGERQVIST, Tomas , MAURITZ, Oskar , PARKVALL, Stefan
IPC分类号： H04L1/18 , H04L1/00 , H04L25/03
摘要： The disclosure provides methods, apparatus and machine-readable mediums for generating and transmitting a message in a wireless communications network. One embodiment provides a method in a transmitting node. The method comprises: processing a block of data to generate a message for transmission by the transmitting node; and transmitting the message. Processing the block of data comprises: performing a scrambling algorithm on data using a scrambling code; and, subsequent to performing the scrambling algorithm, performing a rate-matching algorithm to match a number of bits for transmission to radio resources available to the transmitting node.

10. 发明申请

WO2017058066A1 METHODS AND DEVICES FOR DETERMINING SUITABLE TRANSMIT DIRECTIONS FOR BEAMFORMED TRANSMISSION 审中-公开
标题翻译：用于确定用于波束传输的适用发射方向的方法和装置
公开(公告)号：WO2017058066A1
公开(公告)日：2017-04-06
申请号：PCT/SE2015/051024
申请日：2015-09-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： WIGREN, Torbjörn , MAURITZ, Oskar
IPC分类号： H04B7/06 , H04W16/10 , H04W28/18 , H04W36/00 , H04W72/04 , H04W72/12 , H04W74/00
CPC分类号： H04B7/0695 , H04B7/0617 , H04W16/10 , H04W36/0072
摘要： There is disclosed methods, devices and computer programs for determining new transmit directions to use for beamformed transmissions in case the link quality of an existing direction falters. A transmitting communication device and a receiving communication device cooperates via a beam tracking procedure to determine a new suitable transmit direction to use for upcoming beamformed transmissions. Information relating to the beam tracking procedure is communicated over an existing link that enables communication between the transmitting and receiving communication devices. The receiving communication device provides the transmitting communication device with information about a beam scan performed in order to detect tracking beams transmitted by the transmitting communication device. This information allows the transmitting communication device to determine suitable transmit directions to use.
摘要翻译：在现有方向的链路质量恶化的情况下，公开了用于确定用于波束形成的传输的新的发射方向的方法，设备和计算机程序。发射通信设备和接收通信设备经由波束跟踪过程协作以确定用于即将到来的波束形成传输的新的合适的发射方向。与波束跟踪过程相关的信息通过现有的链路进行通信，该链路能够实现发送和接收通信设备之间的通信。接收通信设备向发射通信设备提供关于执行的波束扫描的信息，以便检测由发送通信设备发送的跟踪波束。该信息允许发送通信设备确定要使用的合适的发送方向。

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