-
公开(公告)号：WO2022018487A1
公开(公告)日：2022-01-27
申请号：PCT/IB2020/056861
申请日：2020-07-22
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： YASINI, Sholeh , WIGREN, Torbjörn
IPC: H04W64/00 , G01S5/00 , G01S5/02 , G01S13/72 , G01S19/42 , G05D1/02 , G05D1/06 , G05D1/08 , G05D1/10
Abstract: Embodiments include methods for estimating movement of an aerial user equipment (UE) in a wireless network based on a plurality of movement models. Such methods include obtaining, from the wireless network, position measurements for the aerial UE at a second time subsequent to a first time, and determining a state of an interacting multiple-model (IMM) for movement of the aerial UE at the second time based on the position measurements. The IMM model includes a first constant-velocity model, a second constant-acceleration model, a third constant-position model, and estimated probabilities associated with the respective models. Such method also includes determining a movement state for the aerial UE at the second time based on combining the models according to their estimated probabilities. Other embodiments include positioning nodes configured to perform such methods.
-
公开(公告)号：WO2022010393A1
公开(公告)日：2022-01-13
申请号：PCT/SE2020/050726
申请日：2020-07-10
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： WIGREN, Torbjörn , YASINI, Sholeh
Abstract: A method of determining the position of a moving unmanned aerial vehicle (UAV) is provided. The method comprises obtaining, for each of three or more base stations, one or more measurements of a carrier frequency offset (CFO) for one or more signals sent between a moving UAV and the respective base station. The method further comprises inputting the CFO measurements into a model to determine a position of the UAV, in which inputs to the model do not include range measurements of the UAV with respect 0to the three or more base stations.
-
公开(公告)号：WO2022010392A1
公开(公告)日：2022-01-13
申请号：PCT/SE2020/050723
申请日：2020-07-10
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： WIGREN, Torbjörn
Abstract: A method of determining a two-dimensional position of a moving wireless device is provided. The method comprises obtaining, for each of three or more base stations, one or more measurements of a carrier frequency offset for one or more signals sent between the moving wireless device and the respective base stations. The method further comprises inputting the carrier frequency offset measurements into a model to determine a two-dimensional position of the moving wireless device, in which inputs to the model do not include range measurements for the moving wireless device with respect to the three or more base stations.
-
公开(公告)号：WO2021076023A1
公开(公告)日：2021-04-22
申请号：PCT/SE2019/051020
申请日：2019-10-16
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： SUN, Ying , WIGREN, Torbjörn
Abstract: There is provided mechanisms for multiplexed transmission of data packages towards a terminal device. A method is performed by a network node. The method comprises multiplexing, for the terminal device, at least one data package of a first service having a first QoS requirement with at least one of at least two duplicated data packages of a second service having a second QoS requirement, different from the first QoS requirement. The method comprises transmitting the multiplexed data packages towards the terminal device over at least two independent paths. The duplicated data packages are transmitted on mutually different ones of the at least two independent paths.
-
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
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： MAURITZ, Oskar , YASINI, Sholeh , WIGREN, Torbjörn
Abstract: 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.
-
Patent Agency Ranking
公开(公告)号：WO2020204773A1
公开(公告)日：2020-10-08
申请号：PCT/SE2019/050300
申请日：2019-04-02
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： WIGREN, Torbjörn
IPC: H04B7/0456 , H04B7/06 , H04W52/04
Abstract: There is provided mechanisms for controlling average EIRP of a radio base station. A method is performed by a control device. The method comprises performing control of average EIRP of the radio base station according to a back-off power density control loop. In the back-off power density control loop, a beam width control parameter is used to vary the EIRP generated by an antenna array of the radio base station, whereby the average EIRP is selectively reduced based on the beam width control parameter.
-
公开(公告)号：WO2020111987A1
公开(公告)日：2020-06-04
申请号：PCT/SE2018/051214
申请日：2018-11-26
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： WIGREN, Torbjörn , HOGAN, Billy
Abstract: There is provided mechanisms for controlling total average transmission power of a radio base station over a fixed time period. A method is performed by a control device. The method comprises obtaining values of average total transmission power of at least one previous transmission from the radio base station. The method comprises determining a resource factor value from the value of average total transmission power and a set point value of the average total transmission power. The method comprises determining, based on the resource factor value, an action that restricts the amount of code-division multiple access (CDMA) resources to be used at least for a current transmission. The method comprises controlling the total average transmission power over the fixed time period by initiating the determined action at least for the current transmission.
-
公开(公告)号：WO2020046183A1
公开(公告)日：2020-03-05
申请号：PCT/SE2018/050878
申请日：2018-08-31
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： WIGREN, Torbjörn , DELGADO, Ramon , MIDDLETON, Richard , LAU, Katrina
Abstract: According to a first aspect, there is provided a method for delay alignment in a multi-point communication system. The method comprises determining (S10) of a respective reference value of round trip time for n +1 signalling paths in the multi-point communication system, where n >0. The determination (S10) is performed using n reference values of round trip time skews between a respective signalling path and a single reference signalling path of the n +1 signalling paths, and a reference value of a sum of round trip times over all of the n +1 signalling paths as exclusive input values. The respective reference values of round trip times are limited within a predetermined allowed interval for round trip times. The methods further comprises performing (S20) of a separate, preferably globally stable, control of data signalling in each single one of the n +1 signalling paths based on the respective reference values of round trip times.
-
公开(公告)号：WO2019219180A9
公开(公告)日：2019-11-21
申请号：PCT/EP2018/062636
申请日：2018-05-16
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： CARLSSON, Torsten , WIGREN, Torbjörn , SAHLIN, Henrik
Abstract: A base station for detecting a Physical Random Access Channel (PRACH) transmission from a User Equipment device (UE) comprises a radio device and at least one additional device. The radio device comprises narrowband receivers respectively coupled to antenna elements of an antenna array. Each narrowband receiver is configured to receive a signal from a respective antenna element and process the signal to provide received symbols for a PRACH received via the respective antenna element. The radio device also comprises accumulation circuitry configured to, for each antenna element, accumulate a subset of the received symbols for the PRACH received via the antenna element to output a first averaged symbol for the PRACH received via the antenna element. The at least one additional device is configured to receive, from the radio device, the first averaged symbols and process the first averaged symbols to perform PRACH detection for one or more receive beams.
-
10.发明申请
公开(公告)号：WO2018135982A1
公开(公告)日：2018-07-26
申请号：PCT/SE2017/050041
申请日：2017-01-18
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： FARONIUS, Carola , GÖRANSSON, Bo , HUSS, Fredrik , LUNDEVALL, Magnus , WIGREN, Torbjörn
IPC: H04B7/0452
Abstract: A network node and a method performed by the network node for scheduling transmissions between the network node and one or more wireless devices in the same physical layer resources are provided. The method (100) comprises selecting (110) a beam for a transmission between the network node and a first one of the wireless devices; and determining (120) if a portion of physical layer resources remains available after allocating portions of physical layer resources to a first set of one or more wireless devices within transmission range of the selected beam. The method further comprises if at least a portion of physical layer resources remains available, adjusting (130) the selected beam such that a second set of one or more additional wireless devices not within transmission range of the initially selected beam are within transmission range of the adjusted beam. Still further, the method comprises if no portion of physical layer resources remains available after allocating portions of physical layer resources to the first and second set of wireless devices and if there are enough physical layer resources for transmission between the network node and the first and second sets of wireless devices using the adjusted beam: scheduling (141) transmissions between the network node and the first and second sets of wireless devices using the adjusted beam.
-
-
-
-
-
-
-
-
-
Search Results
106
records
(took 0.045 seconds)
