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91.发明申请公开(公告)号：US20190068338A1
公开(公告)日：2019-02-28
申请号：US16080462
申请日：2016-02-29
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Shehzad Ali Ashraf , Robert Baldemair , Jörg Huschke , Bengt Lindoff
CPC classification number: H04L5/0023 , H04L1/0038 , H04L5/0053 , H04L5/0064 , H04W4/70 , H04W72/0406
Abstract: An access node of the wireless communication network determines a configuration of a first search space (210) in terms of first time domain coordinates and first frequency domain coordinates of a time-frequency grid of radio resource elements. Further, the access node determines a configuration of a second search space (220) in terms of second time coordinates and second frequency domain coordinates of the time-frequency grid. The second search space (220) differs from the first search space at least with respect to the time domain coordinates. In radio resource elements of the first search space (210), the access node transmits downlink control information for a first class of radio devices subject to a first timing requirement. In radio resource elements of the second search space (220), the access node transmits downlink control information for a second class of radio devices subject to a second timing requirement which is stricter than the first timing requirement.
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公开(公告)号：US20180324794A1
公开(公告)日：2018-11-08
申请号：US16033929
申请日：2018-07-12
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Robert Baldemair , David Astely , Dirk Gerstenberger , Daniel Larsson , Stefan Parkvall
Abstract: Embodiments herein include a method in a user equipment (UE) for transmitting uplink control information in time slots of a subframe over a radio channel to a radio base station. The uplink control information is comprised in a block of bits. The UE maps the block of bits to a sequence of complex valued modulation symbols. The UE block spreads the sequence across Discrete Fourier Transform Spread—Orthogonal Frequency Division Multiplexing (DFTS-OFDM) symbols. This is performed by applying a spreading sequence to the sequence of complex valued modulation symbols, to achieve a block spread sequence of complex valued modulation symbols. The UE further transforms the block-spread sequence, per DFTS-OFDM symbol. This is performed by applying a matrix that depends on a DFTS-OFDM symbol index and/or slot index to the block-spread sequence. The UE also transmits the block spread sequence, as transformed, over the radio channel to the radio base station.
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公开(公告)号：US20180309551A1
公开(公告)日：2018-10-25
申请号：US15760499
申请日：2017-10-31
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Robert Baldemair , Erik Dahlman , Sorour Falahati , Daniel Larsson , Stefan Parkvall
CPC classification number: H04L5/0039 , H04L5/0005 , H04L5/001 , H04L5/0042 , H04L5/0044 , H04L5/0053 , H04L5/0094 , H04W72/0413 , H04W72/0453
Abstract: Limited uplink bandwidth radio network devices (30) are supported on wide bandwidth uplink carriers by configuring and controlling the use of multiple control regions within the uplink carrier bandwidth. In some embodiments, the total bandwidth of the uplink carrier is divided into a plurality of sub-band portions, wherein at least one sub-band portion includes at least one control region nominally dedicated to the transmission of uplink control signaling. The control regions may be configured at one or both edges of sub-band portions, or elsewhere within a sub-band portions. Sub-band portions may share a control region. Radio network devices (30) are configured with a specified portion of the uplink carrier bandwidth for use for uplink transmission, which includes at least one control region. The specified portion may comprise an integer number of sub-band portions, or may span only part of one or more sub-band portions. Radio network devices (30) may be dynamically configured to allow or suppress data signaling in control regions.
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公开(公告)号：US20180302906A1
公开(公告)日：2018-10-18
申请号：US15524131
申请日：2017-03-08
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Robert Baldemair , Martin Hessler , Eleftherios Karipidis , Bo Lincoln , Torgny Palenius , Eliane Semaan
Abstract: Embodiments herein relate to a method performed by a wireless device (10) for managing communication of the wireless device (10) in a wireless communications network (1). The wireless device determines at least two waveform parameters based on a metric of the wireless device (10), for communicating data between the wireless device (10) and a radio network node (12) in the wireless communications network (1). The wireless device (10) further transmits an indication indicating the at least two determined waveform parameters to the radio network node (12).
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公开(公告)号：US20180270804A1
公开(公告)日：2018-09-20
申请号：US15983790
申请日：2018-05-18
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Robert Baldemair , Dirk Gerstenberger , Daniel Larsson , Henning Wiemann
CPC classification number: H04W72/0406 , H04L5/0007 , H04L5/001 , H04L5/0053 , H04L5/0091 , H04W52/367 , H04W52/54
Abstract: A communication system includes a transmitting communication device and a receiving communication device. The transmitting communication device determines a control element, e.g., a control element of a Media Access Control protocol, associated with one of the carriers and provides the control element with an identifier specifying the carrier the control element is associated with. The transmitting communication device sends the control element with the identifier on one of the carriers to the receiving communication device. The receiving communication device receives the control element and determines, from the identifier received with the control element, the carrier the control element is associated with. Further, the receiving communication device determines, on the basis of parameters indicated by the control element, a data transmission property of the carrier the control element is associated with.
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公开(公告)号：US10064086B2
公开(公告)日：2018-08-28
申请号：US15376852
申请日：2016-12-13
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： Pål Frenger , Erik Eriksson , Johan Bergman , Robert Baldemair , Konstantinos Dimou
CPC classification number: H04W28/0215 , H04W4/06 , H04W4/70 , H04W48/06 , H04W48/08 , H04W48/12 , H04W56/0025
Abstract: Network node and UE, and methods therein for signaling system information, SI, to UEs. The method in the network node comprises transmitting SI to one or more UEs, where the SI comprises multiple alternative sets, where each set assigns different values to one or multiple radio system parameters. The method further comprises determining which set, out of the multiple alternative sets, that should currently be applied for a UE, and transmitting an SI selection signal to the UE, the SI selection signal indicating the determined set, thus enabling the UE to apply currently appropriate radio system parameters also in unfavorable radio conditions. The UE may be an MTC device (Machine Type Communication).
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公开(公告)号：US20180227166A1
公开(公告)日：2018-08-09
申请号：US15569712
申请日：2017-05-11
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Torgny Palenius , Robert Baldemair , Martin Hessler , Eleftherios Karipidis , Bo Lincoln , Eliane Semaan
Abstract: In an aspect, a wireless device with a plurality of transmitter chains that can be selectively used to transmit a beam-formed signal determines a targeted receive power for the beam-formed signal, with respect to a target receiving device. The wireless device selects a number of the plurality of transmitter chains for forming the beam-formed signal, based on the targeted receive power and based on an estimated power consumption for each of the plurality of transmitter chains. The selection is performed so as to minimize a total power consumption, given the estimated power consumptions. The wireless device transmits a beam-formed signal, using the selected number of the plurality of transmitter chains.
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公开(公告)号：US20180198649A1
公开(公告)日：2018-07-12
申请号：US15742120
申请日：2015-10-13
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Bengt Lindoff , Shehzad Ali Ashraf , Robert Baldemair
CPC classification number: H04L27/0008 , H04L1/00 , H04L5/0007 , H04L5/0028 , H04L5/006 , H04L5/0064 , H04L5/0066 , H04L5/0085 , H04L5/0087 , H04L5/0091 , H04L5/0092 , H04L27/0012 , H04L27/2607 , H04L27/2628 , H04L27/264 , H04W16/14 , H04W72/0446 , H04W72/0453
Abstract: Techniques are disclosed for adaptively determining windowing functions and/or filtering functions in a system that uses multiple multicarrier modulation numerologies. According to one aspect, a method comprises determining (1610) first and second quantities of frequency resources needed for first and second multicarrier modulation schemes, respectively, the first and second multicarrier modulation schemes having first and second subcarrier spacings, respectively, the first subcarrier spacing differing from the second subcarrier spacing; determining (1620) a first windowing function and/or first filtering function, for use with the first multicarrier modulation scheme, based on at least one of the first and second quantities of frequency resources; and transmitting (1630) a multi-mode multi-carrier modulation signal in a frequency band, during the first interval, using the first and second multicarrier modulation schemes and the first and second quantities of frequency resources. Transmitting the multi-mode multi-carrier modulation signal comprises applying the first windowing and/or first filtering function to the first multicarrier modulation scheme.
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公开(公告)号：US20180124791A1
公开(公告)日：2018-05-03
申请号：US15784968
申请日：2017-10-16
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： Karl Werner , Ning He , Robert Baldemair
CPC classification number: H04W72/0453 , H04L5/0007 , H04L5/001 , H04L27/2604 , H04L27/265 , H04W72/042
Abstract: A method of operating a user equipment comprises addressing multi-subcarrier system resources using multiple different numerologies available within a single carrier, the multiple different numerologies comprising a first numerology having resource blocks (RBs) with a first bandwidth and a first subcarrier spacing, Δf1, and a second numerology having RBs with a second bandwidth and a second subcarrier spacing, Δf2, which is different from Δf1, wherein the first numerology is aligned in the frequency domain relative to a frequency reference, Fref, according to m*Δf1+Fref and the second numerology is aligned in the frequency domain relative to the frequency reference, Fref, according to n*Δf2+Fref, where m and n are integers. The method further comprises transmitting and/or receiving information within the single carrier according to the at least one of the multiple different numerologies.
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公开(公告)号：US09955411B2
公开(公告)日：2018-04-24
申请号：US15425914
申请日：2017-02-06
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Robert Baldemair , Kumar Balachandran , Dennis Hui
CPC classification number: H04W48/16 , H04B7/06 , H04J1/06 , H04W8/005 , H04W56/001 , H04W72/0453
Abstract: A transmitter and a method therein for transmitting discovery signals to a receiver. The transmitter and the receiver are comprised in a radio communications system. The transmitter transmits two or more discovery signals over two or more directions. Each discovery signal is configured to span over a fraction of a carrier bandwidth.
