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1. 发明申请

WO2009091881A1 DURATION-SHORTENED OFDM SYMBOLS 审中-公开
标题翻译： DURATION-SHORTENED OFDM符号
公开(公告)号：WO2009091881A1
公开(公告)日：2009-07-23
申请号：PCT/US2009/031089
申请日：2009-01-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , TSAI, Shiau-He , CHEN, Tsao-Tsen , ERNSTRÖM, Per
发明人： TSAI, Shiau-He , CHEN, Tsao-Tsen , ERNSTRÖM, Per
IPC分类号： H04L27/26 , H04J11/00 , H04B7/208 , H04B7/212
CPC分类号： H04L27/2602 , H04L1/1812 , H04W28/06
摘要： A communications network comprises a base station (28) and a wireless terminal (30) which communicate a frame (F) of information over an air interface (32). The frame (F) is prepared or processed to accommodate duration-shortened symbols. The preparation or processing the frame occurs in a manner whereby: (1) at least some of OFDM symbols of the frame have a symbol duration T base in accordance with a base frequency 1/T base of subcarriers employed for the frame; and (2) at least one duration-shortened OFDM symbol of the frame has a symbol duration Tbase/N, wherein N is an integer greater than one and wherein a subset of subcarriers are utilized for the select OFDM symbol, the subset of subcarriers being frequencies which are integer multiples of a N th harmonic of the base frequency 1/T base . In an example embodiment, the duration-shortened symbol is inserted in a portion of the frame corresponding to a transition gap for at least one version of the frame.
摘要翻译：通信网络包括通过空中接口（32）传送信息的帧（F）的基站（28）和无线终端（30）。帧（F）被准备或处理以适应持续时间缩短的符号。准备或处理该帧的方式是：（1）帧的至少一些OFDM符号具有符合帧频率的基站频率1 / Tbase的基站频率1 / Tbase; 和（2）帧的至少一个持续时间缩短的OFDM符号具有符号持续时间Tbase / N，其中N是大于1的整数，并且其中子载波子集用于选择OFDM符号，子载波子集是频率是基本频率1 / Tbase的N次谐波的整数倍。在示例实施例中，将持续时间缩短的符号插入到对应于帧的至少一个版本的过渡间隙的帧的一部分中。

2. 发明申请

WO2023012703A1 METHODS FOR RESOURCE MAPPING AROUND POSITIONING REFERENCE SIGNALS 审中-公开
公开(公告)号：WO2023012703A1
公开(公告)日：2023-02-09
申请号：PCT/IB2022/057226
申请日：2022-08-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MURUGANATHAN, Siva , ERNSTRÖM, Per , SHREEVASTAV, Ritesh , MUNIER, Florent
IPC分类号： H04W64/00 , G01S5/00
摘要： Systems and methods for generating and configuring reserved resources associated with positioning measurements and calculations are provided herein. A wireless device can be configured to receive downlink data and perform positioning reference signal (PRS) measurements in one or more reserved resources without a configured measurement gap. Configuration information can indicate that PRS measurement is prioritized in a reserved resource.

3. 发明申请

WO2020071992A1 BEAM BASED POSITIONING MEASUREMENTS AND MEASUREMENT REPORTING 审中-公开
公开(公告)号：WO2020071992A1
公开(公告)日：2020-04-09
申请号：PCT/SE2019/050967
申请日：2019-10-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ERNSTRÖM, Per , GUNNARSSON, Fredrik , JOHANSSON, Nicklas , MODARRES RAZAVI, Sara , DWIVEDI, Satyam , SHREEVASTAV, Ritesh , SHRESTHA, Deep
IPC分类号： G01S5/00 , G01S5/02
摘要： Methods and apparatuses are disclosed for beam based positioning measurements and measurement reporting. In one embodiment, a method in a network node includes communicating information to configure a wireless device (WD) with a plurality of positioning reference signals, the communicated information at least indicating which of the plurality of positioning reference signals are transmitted from the same transmission point. In another embodiment, a method in a WD includes receiving information indicating which of a plurality of positioning reference signals are transmitted from the same transmission point; and performing measurements on each of the plurality of positioning reference signals transmitted from the same transmission point.

4. 发明申请

WO2020032855A1 CHANNEL ESTIMATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2020032855A1
公开(公告)日：2020-02-13
申请号：PCT/SE2019/050682
申请日：2019-07-09
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ERNSTRÖM, Per
IPC分类号： H04L25/02 , H04L5/00
摘要： Radio equipment (10) is configured for tap separated channel estimation in a wireless communication system. The radio equipment (10) obtains a channel estimate (16) of a radio channel over which a reference signal (12) is received, and separates the channel estimate (16) into channel estimate components (20) that correspond to respective channel taps (22). The radio equipment (10) then compensates the channel estimate components (20) for Doppler shifts respectively associated with the channel taps (22) to which the channel estimate components (20) correspond. The radio equipment (10) processes the compensated channel estimate components (32) separately. Such processing comprises filtering, interpolating, and/or extrapolating. The radio equipment (10) then de-compensates the processed channel estimate components (34) for the respective Doppler shifts, and forms a combined channel estimate (42) of the radio channel by combining the de-compensated channel estimate components (38).

5. 发明申请

WO2023079512A1 COMPENSATING ESTIMATES FOR CLOCK DRIFT AND TIMING ADJUSTMENTS 审中-公开
公开(公告)号：WO2023079512A1
公开(公告)日：2023-05-11
申请号：PCT/IB2022/060653
申请日：2022-11-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ERNSTRÖM, Per , MURUGANATHAN, Siva
IPC分类号： H04W56/00
摘要： Systems and methods for configuring and performing compensation for UE clock drifts and/or UE timing adjustments for RTT estimations. A wireless device can receive, from a network node, configuration information associated with estimating and reporting transmission timing compensation. The wireless device can estimate a transmission timing compensation for a time interval and report it to the network node. The network node can estimate a round trip time and/or a position of the wireless device based at least in part on the estimated transmission timing compensation.

6. 发明申请

WO2022207857A1 TEMPORAL AND FREQUENCY-DEPENDENT TIMING ERROR GROUPS 审中-公开
公开(公告)号：WO2022207857A1
公开(公告)日：2022-10-06
申请号：PCT/EP2022/058685
申请日：2022-03-31
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ERNSTRÖM, Per , MURUGANATHAN, Siva , SIOMINA, Iana , SHREEVASTAV, Ritesh , GUNNARSSON, Fredrik , MUNIER, Florent
IPC分类号： G01S5/02 , G01S2205/008 , G01S5/0244
摘要： Methods and apparatus are provided for determining timing error groups. In one embodiment a method of operating an entity in a communications network is provided. The communications network includes a network node. The method comprising determining (2010) at least one potential margin from a predetermined plurality of potential margins. Each potential margin of the plurality of potential margins being a potential maximum margin of timing error difference between two measurements based on positioning related reference signals or transmissions of positioning related reference signals. The method further comprising transmitting (2020) an indication of the at least one potential margin to the network node. The method includes determining (2030) a margin from the at least one potential margin and performing (2040) an action. The method further comprising determining (2050) a timing error group, TEG, associated with the action based on the margin.

7. 发明申请

WO2021091472A1 SIGNALLING SUPPORT FOR NR POSITIONING WITH APERIODIC SRS CONFIGURATIONS 审中-公开
公开(公告)号：WO2021091472A1
公开(公告)日：2021-05-14
申请号：PCT/SE2020/051073
申请日：2020-11-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： SHREEVASTAV, Ritesh , MASINI, Gino Luca , SIOMINA, Iana , ERNSTRÖM, Per , BUSIN, Åke , MUNIER, Florent
IPC分类号： H04L5/00
摘要： Signalling Support for NR Positioning with Aperiodic SRS ConfigurationsEmbodiments described herein relate to methods and apparatus in networks, and particularly methods, Location Management Functions, base stations and wireless devices for configuring and sending uplink sounding reference signals, UL SRS. 1. A method performed by a Location Management Function, LMF, comprises receiving radio resource information relating to radio resources that can be applied for UL SRS by a wireless device; and providing a notification relating to triggering aperiodic uplink SRS to a base station serving the wireless device.

8. 发明申请

WO2020145879A3 METHODS AND APPARATUSES FOR POSITIONING BASED ON THE SOUNDING REFERENCE SIGNAL 审中-公开
公开(公告)号：WO2020145879A3
公开(公告)日：2020-07-16
申请号：PCT/SE2020/050024
申请日：2020-01-13
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MUNIER, Florent , ERNSTRÖM, Per , STARE, Erik , GUNNARSSON, Fredrik , NYGREN, Johannes , DWIVEDI, Satyam , SHREEVASTAV, Ritesh , SIOMINA, Iana
IPC分类号： H04W64/00 , H04W52/32 , H04W52/14 , H04W72/04 , G01S5/02 , H04L5/00 , H04W16/28
摘要： A method performed by a user equipment, UE (110, 200) includes obtaining (1202) a Sounding Reference Signal, SRS, configuration from a network node (160) and determining (1204) an SRS waveform and transmitting (1206) the SRS waveform. The SRS waveform is adapted for positioning based on the SRS configuration to have a full bandwidth within a bandwidth applicable for the SRS waveform.

9. 发明申请

WO2020145873A1 POSITIONING REFERENCE SIGNALING 审中-公开
公开(公告)号：WO2020145873A1
公开(公告)日：2020-07-16
申请号：PCT/SE2020/050012
申请日：2020-01-09
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： STARE, Erik , ERNSTRÖM, Per , GUNNARSSON, Fredrik , SIOMINA, Iana
IPC分类号： H04L27/26 , G01S1/20 , H04L5/00 , H04W64/00
摘要： There is disclosed a method of operating a network node (100) in a radio access network, the method comprising transmitting reference signaling based on a reference signaling configuration, the reference signaling configuration corresponding to a comb-n structure for a symbol group of a slot, wherein the reference signaling configuration corresponds to a staggered and/or re-ordered comb-n structure for one or more other symbol groups of the slot. The disclosure also pertains to related devices and methods.

10. 发明申请

WO2020091658A1 METHODS, APPARATUS AND MACHINE-READABLE MEDIUMS RELATING TO REFERENCE SIGNALS FOR POSITIONING IN A WIRELESS NETWORK 审中-公开
公开(公告)号：WO2020091658A1
公开(公告)日：2020-05-07
申请号：PCT/SE2019/051058
申请日：2019-10-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MUNIER, Florent , GUNNARSSON, Fredrik , SIOMINA, Iana , ERNSTRÖM, Per , SHREEVASTAV, Ritesh
IPC分类号： H04W72/04 , H04L1/00 , H04W64/00 , G01S5/10
摘要： Embodiments of the disclosure provide methods, apparatus and machine-readable mediums relating to reference signals for positioning in a wireless network. A method performed by a wireless device relating to positioning in a wireless network is provided. The method comprises receiving user data, and a reference signal for positioning in a transmission from a radio network node. The method further comprises rate matching the user data over one or more radio resources not used by the reference signal.

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