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公开(公告)号：US20240183926A1
公开(公告)日：2024-06-06
申请号：US18553891
申请日：2022-04-06
发明人： Gustav LINDMARK , Per ERNSTRÖM , Florent MUNIER , Satyam DWIVEDI , Ritesh SHREEVASTAV , Mohammed Yazid LYAZIDI
CPC分类号： G01S5/0081 , H04W64/00
摘要： A method (2200) by a first network node (560) includes transmitting (2202), to a second network node (560), a message comprising search window information, The search window information includes information associated with an expected angle and information associated with an uncertainty level of the expected angle. The first network node receives (2204) a response message from the second network node. The response message comprises feedback associated with a use of the search window information by the second network node.
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公开(公告)号：US20230266425A1
公开(公告)日：2023-08-24
申请号：US18020472
申请日：2020-08-13
发明人： Magnus SANDGREN , Satyam DWIVEDI , Garry IRVINE , Sara SANDBERG , Alexander HUNT
CPC分类号： G01S5/0218 , G01S5/0244 , H04W64/00
摘要： Methods and apparatus are provided. In an example aspect, a method (300, 400, 500) of estimating a location of a User Equipment (UE) is provided. The method comprises determining (302) whether a signal transmitted between the UE and a first network node has a line-of-sight (LoS) path between the UE and the first network node, and estimating (304) the location of the UE based on the signal received at the first network node and based on whether the signal has a LoS path.
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公开(公告)号：US20210297216A1
公开(公告)日：2021-09-23
申请号：US17265728
申请日：2019-08-02
发明人： Ritesh SHREEVASTAV , Åke BUSIN , Sara MODARRES RAZAVI , Iana SIOMINA , Satyam DWIVEDI , Fredrik GUNNARSSON , Deep SHRESTHA
摘要： A method for positioning reference signal configuration comprises receiving, from a network node, one or more first positioning reference signals in a first PRS configuration; performing one or more first measurements on the first PRS to determine one or more first characteristics of the one or more first PRSs; sending, to the network node, a second PRS configuration determined based on the one or more first characteristics; receiving, from the network node, a third PRS configuration, wherein the third PRS configuration comprises one or more third PRSs having at least one different signal characteristic than the one or more first characteristics of the first PRS; and performing one or more second measurements on the one or more third PRSs. The method provides a dynamic configuration for PRS based on the feedback from the UE and a location node, beamforming configuration, or any requirements for physical layer efficiently.
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4.发明公开公开(公告)号：US20240205877A1
公开(公告)日：2024-06-20
申请号：US18555053
申请日：2022-04-12
发明人： Per ERNSTRÖM , Gustav LINDMARK , Satyam DWIVEDI , Florent MUNIER , Yazid LYAZIDI , Fredrik GUNNARSSON , Ritesh SHREEVASTAV
CPC分类号： H04W64/006 , H04L5/0051 , H04W24/10
摘要： Systems and methods for handling multiple Angle of Arrival (AoA) solutions and their associated ambiguities are provided herein. A network node instructs for a wireless device to transmit reference signals for positioning measurements. An access node can perform positioning measurements, including measuring a plurality of AoA values for the reference signals, and report the positioning measurements accordingly.
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公开(公告)号：US20220196780A1
公开(公告)日：2022-06-23
申请号：US17268993
申请日：2018-08-17
摘要： Some embodiments advantageously provide methods, wireless devices and network nodes for adapting PRS transmission to hide the local clock information of base stations. According to one aspect, an exemplary process includes a network node for transmitting PRS. The process includes delaying or advancing the transmission of at least one positioning reference signal in accordance with received offset information wherein delaying or advancing the transmission according to the offset information shifts the transmission of the at least one positioning reference signal away from a scheduled transmission time for the one positioning reference signal transmission.
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公开(公告)号：US20210112521A1
公开(公告)日：2021-04-15
申请号：US16965025
申请日：2018-02-09
发明人： Satyam DWIVEDI , Henrik ASPLUND , Jonas MEDBO , Fredrik GUNNARSSON , Ali ZAIDI , Sara MODARRES RAZAVI
摘要： Methods and apparatuses for determining a position of a wireless device in a wireless communication network are provided. The method includes obtaining a first sequence of Time Difference of Arrivals (TDOAs) at the wireless device of reference signals, which are transmitted by and used for synchronization of a first pair of network nodes; and determining, based on the first sequence of TDOAs, a first relative distance. The method also includes obtaining a second sequence of TDOAs at the wireless device of reference signals, which are transmitted by and used for synchronization of a second pair of network nodes; and determining, based on the first sequence of TDOAs, a second relative distance. The method further includes determining the position of the wireless device based on the first and second relative distances. Corresponding computer programs and computer program carriers are also disclosed.
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公开(公告)号：US20240323883A1
公开(公告)日：2024-09-26
申请号：US18575273
申请日：2021-06-30
发明人： Niklas JALDÉN , Henrik ASPLUND , Karl WERNER , Satyam DWIVEDI
CPC分类号： H04W56/005 , H04L25/0212
摘要： There is provided mechanisms for purpose-dependent determination of start of a receiver symbol processing window. A method is performed by a wireless transceiver unit. The method comprises receiving, from another wireless transceiver unit, a reference signal based on which the start of the receiver symbol processing window is to be determined. The reference signal is to be processed for a processing purpose selected from a set of at least two different processing purposes. The method comprises determining a synchronization time offset from measurements on the reference signal according to an estimation process that is a function of the processing purpose. The synchronization time offset defines placement of the start of the receiver symbol processing window. According to the estimation process, the start of the receiver symbol processing window is placed differently with respect to the at least two different processing purposes.
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公开(公告)号：US20240106594A1
公开(公告)日：2024-03-28
申请号：US18275181
申请日：2022-02-01
发明人： Per ERNSTRÖM , Gustav LINDMARK , Fredrik GUNNARSSON , Satyam DWIVEDI , Florent MUNIER , Ritesh SHREEVASTAV
CPC分类号： H04L5/0048 , H04W24/10 , H04W72/02
摘要： A communication device in a communications network receives (1710) first configuration information from a network node in the communications network. The first configuration can include an indication of a downlink, DL, positioning reference signal, PRS, resource of a plurality of DL PRS resources. The communication device can further perform (1720) at least one DL angle of departure, AOD, measurement based on the first configuration information. The communication device can further receive (1730) second configuration information from the network node. The second configuration information can include an indication of a subset of the plurality of DL PRS resources. The communication device can further report (1750) one or more DL AOD measurements.
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9.发明公开公开(公告)号：US20230209586A1
公开(公告)日：2023-06-29
申请号：US17927299
申请日：2021-05-25
发明人： Ursula CHALLITA , Kimmo HILTUNEN , Satyam DWIVEDI
IPC分类号： H04W72/541 , H04W64/00 , H04B17/373 , G06N3/0442 , G06N3/08
CPC分类号： H04W72/541 , H04W64/006 , H04B17/373 , G06N3/0442 , G06N3/08
摘要： A computer implemented method performed by a network node in a non-public communication network is provided. The method includes predicting a subsequent position of a first communication device served by a public communication network, wherein the first communication device is causing an interference level on the non-public communication network. The method further includes estimating a level of subsequent interference from the first communication device for the subsequent position. The method further includes initiating control of radio resources to reduce the estimated interference level from the first communication device.
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公开(公告)号：US20220011394A1
公开(公告)日：2022-01-13
申请号：US17295197
申请日：2019-12-13
发明人： Roland SMITH , Miguel BERG , Satyam DWIVEDI , Mike SKOF
摘要： A method and network node for differential matched summed antenna positioning are disclosed. According to one aspect, a method includes summing sequential uplink data signals at each of a plurality of antennas of the network node to produce a plurality of antenna signal sums. The method also includes selecting one of the antenna signal sums to be used as a reference antenna signal sum. A channel impulse response is determined for each of a plurality of other antennas by cross correlating the reference antenna signal sum with the others of the plurality of antenna signal sums. The method further includes estimating a time difference of arrival from the channel impulse responses of the plurality of antennas, and estimating an error of the estimated time difference of arrival of each antenna. A position of a wireless device is determined using the estimated time differences of arrival.
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