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公开(公告)号：US11463943B2
公开(公告)日：2022-10-04
申请号：US15525122
申请日：2015-10-28
Applicant: Nokia Solutions and Networks Oy
Inventor： Timo Erkki Lunttila , Esa Tapani Tiirola , Klaus Hugl
Abstract: An example technique may include transmitting, by a base station via a component carrier in a licensed band, control information including a resource allocation that identifies time-frequency resources for periodical transmission opportunities to be used for the conditional transmission of discovery reference signals via a secondary component carrier in an unlicensed band, determining, prior to each transmission opportunity, whether the secondary component carrier in the unlicensed band is unoccupied, and transmitting, if the secondary component carrier in the unlicensed band is unoccupied, the discovery reference signals via the secondary component carrier in the unlicensed band using the identified time-frequency resources to one or more user devices.
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公开(公告)号：US10666404B2
公开(公告)日：2020-05-26
申请号：US16426183
申请日：2019-05-30
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Esa Tapani Tiirola , Kari Juhani Hooli , Timo Erkki Lunttila
IPC: H04L5/00 , H04W56/00 , H04W74/00 , H04W28/26 , H04W72/04 , H04W74/08 , H04L27/26 , H04N21/266 , H04L1/16
Abstract: There is provided a method for defining at least one channel reservation window the method comprising: setting length for each of the at least one channel reservation window such that each channel reservation window comprises a plurality of sub-frames; dividing the length of each channel reservation window into a transmission part and an idle part, wherein the idle part consists of one or more symbols in one sub-frame; maximizing, at a symbol level accuracy, the length of the transmission part such that a ratio between the length of the idle part and the length of the transmission part fulfils a predetermined criterion; and concatenating the transmission part and the idle part so as to form the channel reservation window.
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公开(公告)号：US10355757B2
公开(公告)日：2019-07-16
申请号：US15547024
申请日：2015-01-30
Applicant: Nokia Solutions and Networks Oy
Inventor： Bishwarup Mondal , Timo Erkki Lunttila , Eugene Visotsky
IPC: H04W4/00 , H04B7/0417 , H04B7/0456 , H04B17/318 , H04W24/08 , H04L5/00 , H04W8/00 , H04W84/04 , H04B7/06
Abstract: A method and apparatus may include receiving, by a first network node, mapping information from at least one second network node. The mapping information indicates restrictions with respect to antenna ports to be used for measurements on each of one or more channel-state-information-reference-signal resources transmitted by at least one second network node. The method may also include transmitting a message to a user equipment. The message configures the user equipment to measure channel-state-information-reference-signal-received power from at least one of said one or more channel-state-information-reference-signal resources. The method may also include receiving a reporting from the user equipment.
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公开(公告)号：US10321416B2
公开(公告)日：2019-06-11
申请号：US15544759
申请日：2015-01-28
Applicant: Nokia Solutions and Networks Oy
Inventor： Esa Tapani Tiirola , Timo Erkki Lunttila , Kari Juhani Hooli , Klaus Hugl
Abstract: Apparatuses and methods for transmission power control are disclosed. A given transmission resource and a first transmission power are determined (202, 204) for transmission. Prior to transmitting on the given transmission resource it is determined (206) whether the resource is occupied or unoccupied. Upon detecting that the resource is occupied, a second, reduced transmission power is determined (210) such that a transmission using the second, reduced transmission power would not render the resource as occupied. The determination of the second transmission power is based at least partially on a predetermined maximum transmission power reduction value. Transmission (212) is done utilizing the given transmission resource using the second transmission power according to the determination.
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公开(公告)号：US20170339693A1
公开(公告)日：2017-11-23
申请号：US15532209
申请日：2014-12-03
Applicant: Nokia Solutions and Networks Oy
Inventor： Michal Cierny , Timo Erkki Lunttila
CPC classification number: H04W72/0446 , H04W16/14 , H04W24/10 , H04W74/006 , H04W84/042 , H04W84/12
Abstract: The application relates to improved hidden node detection for Long Term Evolution LTE Licensed-Assisted Access LAA. Channel State Information CSI measurements can be seen as one existing solution that could be used for obtaining information about the existence of a hidden node. However, relying on CSI reporting alone is rather unreliable. One of the reasons for this is that the CSI measurements and reporting do not take into account the regulatory requirements such as LBT. A further possible way to detect hidden nodes is to perform LBT (clear channel assessment CCA) at the transmitter (e.g. eNB) and receiver (e.g. UE) at the same time. However, there is still the need for an improved solution for how to detect hidden nodes preventing LTE LAA uplink operation and complicating coexistence. These problems are solved by ensuring that interference from non-hidden nodes (such as WLAN node 1 in FIG. 1) is not measured. Therefore the serving eNB detects a free channel during LBT procedure, i.e. that non-hidden nodes are not transmitting, and informs the UE which performs the hidden node detection measurements, by downlink scheduling, whether the serving eNB is active in the current subframe. The UE then performs the measurements only in subframes of the channel occupied by the serving eNB. Thereby, the UE only captures interference coming from hidden nodes.
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Patent Agency Ranking
公开(公告)号：US20170331602A1
公开(公告)日：2017-11-16
申请号：US15154300
申请日：2016-05-13
Applicant: Nokia Solutions and Networks Oy
Inventor： Klaus Hugl , Timo Erkki Lunttila , Kari Juhani Hooli , Esa Tapani Tiirola , Sigen Ye
CPC classification number: H04L5/0048 , H04B7/0626 , H04L5/001 , H04L5/0023 , H04L5/0051 , H04L5/0055 , H04L5/0057 , H04L5/0094 , H04W16/14 , H04W28/18 , H04W72/1268 , H04W72/1294 , H04W72/14
Abstract: When triggering a user equipment (UE) to send a reference signal (SRS) the network configures the UE with multiple parameter sets, each having a timing indication. The UE's resource allocation grants multiple uplink (UL) subframes and identifies/selects one of those parameter sets. The timing indication of the selected set identifies one of the granted UL subframes, in one embodiment by counting only among the allocated/granted shortened UL subframes. This triggers the UE to send SRS in that identified shortened UL subframe. In one embodiment if no UL subframes in the grant are shortened this triggers the UE to send SRS in a subframe previous to an the allocated/granted multiple UL subframes. The same mechanism can be used to trigger feedback reports such as aperiodic channel state information or block ACK/NACK reports, where the different UL signaling being triggered is requested in the network's resource allocation to the UE.
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7.发明申请公开(公告)号：US20170311320A1
公开(公告)日：2017-10-26
申请号：US15513207
申请日：2014-09-26
Applicant: Nokia Solutions and Networks Oy
Inventor： Timo Erkki Lunttila , Klaus Hugl , Esa Tapani Tiirola , Kari Juhani Hooli
CPC classification number: H04W72/0446 , H04L1/1896 , H04L5/001 , H04L5/0073 , H04L5/1469 , H04W16/14 , H04W48/00 , H04W52/0216 , H04W74/006 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146 , Y02D70/21 , Y02D70/24
Abstract: There is provided a method comprising controlling receiving, at a node, subframe type configuration information, said subframe type configuration information defining at least one subframe type of a group of subframes to be used in a secondary cell, said secondary cell configured to provide at least one of licensed-assisted access, licensed shared access and co-primary sharing access and using said subframe type configuration information to cause the node to operate in accordance with that configuration in the secondary cell.
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公开(公告)号：US09660784B2
公开(公告)日：2017-05-23
申请号：US14419757
申请日：2013-08-06
Applicant: Nokia Solutions and Networks Oy
Inventor： Timo Erkki Lunttila , Weidong Yang , Klaus Hugl , Frederick Vook , Eugene Visotsky
IPC: H04W4/00 , H04L5/00 , H04B7/0417 , H04B7/0456 , H04B7/024 , H04B7/06
CPC classification number: H04L5/0053 , H04B7/024 , H04B7/0417 , H04B7/0456 , H04B7/0639 , H04L5/0035 , H04L5/0048 , H04L5/0057 , H04L25/03343 , H04L25/03904 , H04L2025/03426
Abstract: Systems and techniques for joint transmission cooperative multi-point. A set of n CSI reference signal resources are to be measured by a user device. The n CSI reference signal resources include at least one CSI reference signal resource spanning over at least two transmission points. Channel state information feedback corresponding to each CSI reference signal resource is configured. Upon receiving CSI from the user device, at least one precoder is selected for coherent joint cooperative multipoint transmission based on inter-transmission point phase relationship information. A co-phasing factor is derived from transmitted precoders over a cross-cell CSI reference signal resource, the derivation including transmission of reference signals using first and second precoding vectors on two ports, computation of a third vector using feedback based on the precoded reference signals, and computation of the co-phasing factor based on the first, second, and third vectors.
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9.发明申请公开(公告)号：US20170134144A1
公开(公告)日：2017-05-11
申请号：US15127338
申请日：2014-03-21
Applicant: Nokia Solutions and Networks Oy
Inventor： Timo Erkki Lunttila , Chun Hai Yao , Esa Tapani Tiirola
CPC classification number: H04L5/0078 , H04L1/1812 , H04L1/1887 , H04L1/1896 , H04L5/001 , H04L5/0073 , H04L2001/0092
Abstract: A method and apparatus can be configured to determine uplink-downlink configuration for a primary cell and at least one secondary cell. The method can also include broadcasting the uplink-downlink configuration to user equipment. The user equipment is configured for carrier aggregation. The method can also include enabling dynamic time-division-duplex configuration for the primary cell and/or the at least one secondary cell for the user equipment. The method can also include configuring the user equipment with downlink hybrid-automatic-repeat-request reference uplink-downlink configuration for each cell for which dynamic time-division-duplex configuration is enabled. The method can also include deriving uplink and/or downlink hybrid-automatic-repeat-request-acknowledgement timing for the at least one secondary cell based on at least one configured uplink-downlink configuration and at least one downlink hybrid-automatic-repeat-request reference uplink-downlink configuration.
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公开(公告)号：US20170013490A1
公开(公告)日：2017-01-12
申请号：US15125767
申请日：2014-03-14
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Timo Erkki Lunttila , Tero Henttonen
Abstract: The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding dormant cell RRM (Radio Resource Management) measurement reporting. Certain aspects of the present invention include configuring, at a base station, a measurment configuration message for causing user equipment served by the base station to perform and report measurements on cells, the measurement configuration message comprising information indicating criteria impacting a measurement reporting procedure with respect to the cells, the said criteria being related to at least one of the state of a cell, a type of a cell, and a type of a signal used for the measurements of the cells, and transmitting said configured measurement configuration message to the user equipment.
Abstract translation: 本发明提供了关于休眠小区RRM（无线电资源管理）测量报告的装置，方法，计算机程序，计算机程序产品和计算机可读介质。 本发明的某些方面包括在基站设置用于使基站服务的用户设备执行和报告小区测量的测量配置消息，所述测量配置消息包括指示影响测量报告过程的标准的信息 所述标准与小区的状态，小区的类型和用于小区测量的信号的类型中的至少一个相关，并且将所配置的测量配置消息发送给用户 设备。
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