公开(公告)号：US09509426B2

公开(公告)日：2016-11-29

申请号：US14508401

申请日：2014-10-07

Applicant: Nokia Solutions and Networks Oy

Inventor： Weidong Yang ,  Xiaoyi Wang ,  Klaus Hugl ,  Rapeepat Ratasuk ,  Jun Tan ,  Timo Erkki Lunttila

IPC: H04J11/00 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04J11/0056 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0073 ,  H04W72/082

Abstract: At a wireless node in a wireless network, multiple interference estimation resources are received in a time-frequency resource space. The multiple interference estimation resources are resource elements in an assigned physical shared channel of the time-frequency resource space that do not contain physical shared channel data for the wireless node. An interference covariance matrix is determined from received signals on the multiple interference estimation resources. Symbol estimates are determined for a desired signal based in part by using the interference covariance matrix. Methods, computer programs and products and apparatus are disclosed. The techniques may be used for uplink, downlink, or D2D communications.

Abstract translation: 在无线网络中的无线节点处，在时间 - 频率资源空间中接收多个干扰估计资源。 多个干扰估计资源是不包含用于无线节点的物理共享信道数据的时间 - 频率资源空间的分配物理共享信道中的资源元素。 从多个干扰估计资源上的接收信号确定干扰协方差矩阵。 部分地通过使用干涉协方差矩阵来确定期望信号的符号估计。 公开了方法，计算机程序和产品和装置。 这些技术可以用于上行链路，下行链路或者D2D通信。

公开(公告)号：US11323998B2

公开(公告)日：2022-05-03

申请号：US15532209

申请日：2014-12-03

Applicant: Nokia Solutions and Networks Oy

Inventor： Michal Cierny ,  Timo Erkki Lunttila

IPC: H04W72/04 ,  H04W16/14 ,  H04W24/10 ,  H04W74/00 ,  H04W84/04 ,  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.

公开(公告)号：US11039496B2

公开(公告)日：2021-06-15

申请号：US14776000

申请日：2013-03-14

Applicant: Nokia Solutions and Networks Oy

Inventor： De Shan Miao ,  Timo Erkki Lunttila ,  Claudio Rosa

IPC: H04W76/27 ,  H04W4/70 ,  H04W52/02 ,  H04L5/00 ,  H04W8/08 ,  H04W40/00 ,  H04W68/02 ,  H04L12/24 ,  H04L12/26 ,  H04W76/28 ,  H04W84/12 ,  H04W88/08

Abstract: A method including determining whether an apparatus is to operate in a first, second or third mode of operation; wherein said first mode of operation includes a first level of activity, said second mode of operation includes a second level of activity that is lower than said first level of activity, and said third mode of operation includes a third level of activity that is lower than said second level of activity; applying a first reference signal transmission regime when in said second mode of operation; and applying a second reference signal transmission regime when in said third mode of operation.

公开(公告)号：US11012220B2

公开(公告)日：2021-05-18

申请号：US15921064

申请日：2018-03-14

Applicant: Nokia Solutions and Networks Oy

Inventor： Esa Tapani Tiirola ,  Timo Erkki Lunttila ,  Kari Juhani Hooli

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/18 ,  H04W72/04

Abstract: The disclosure relates operation where information of at least one selected resource from a pool of resources for control signals in uplink is signalled in downlink. At least one resource is selected from a pool of resources for control signals in the uplink, where after information of the selected at least one resource is signalled in the downlink. Communication of control signals in the uplink by at least one device is facilitated such that at least one non-selected resource from the pool of resources is used in sending of control signals in the uplink. The at least one resource is implicitly derived in accordance with a predefined rule.

公开(公告)号：US10904879B2

公开(公告)日：2021-01-26

申请号：US16090337

申请日：2016-04-01

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Timo Erkki Lunttila ,  Sigen Ye ,  Esa Tapani Tiirola ,  Kari Juhani Hooli

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04L27/26

Abstract: Various communication systems may benefit from improved uplink data transmission. A method may include determining an assignment, at a user equipment, of a first set of physical resource blocks in an unlicensed spectrum to a physical random access channel. The physical random access channel occupies at least one of the physical resource blocks, and wherein the at least one of the physical resource blocks occupied by the physical random channel are distributed into clusters in a frequency domain. The method may also include determining an assignment, when the user equipment transmits data, of a second set of at least one remaining physical resource block of the physical resource blocks to at least one uplink channel. In addition, the method can include transmitting random access preambles through the physical radio access channel or data through of the at least one the uplink channel from the user equipment to a network entity.

公开(公告)号：US10530553B2

公开(公告)日：2020-01-07

申请号：US15565000

申请日：2015-04-10

Applicant: Nokia Solutions and Networks Oy

Inventor： Timo Erkki Lunttila ,  Esa Tapani Tiirola ,  Kari Juhani Hooli ,  Klaus Hugl

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04L1/12 ,  H04W72/04

Abstract: A method comprises defining (401), in a network node (e NB), scheduled downlink carriers from a list of configured downlink carriers. The network node (e NB) defines (401) a downlink assignment index of the scheduled carrier having at least the lowest carrier index from the list of configured carriers, based on a total number of scheduled carriers. The network node (e NB) defines (401) the downlink assignment index for each other scheduled carrier having a higher carrier index from the list of configured carriers. The network node (e NB) transmits (402) to a terminal device (UE) a control message corresponding to each scheduled carrier, the control message indicating a downlink assignment scheduling a physical downlink shared channel, and comprising the defined downlink assignment index. The network node (e NB) receives (405) from the terminal device (UE), uplink control signalling indicating HARQ-ACKs related to physical downlink shared channels corresponding to the scheduled carriers.

公开(公告)号：US20190166618A1

公开(公告)日：2019-05-30

申请号：US16265250

申请日：2019-02-01

Applicant: Nokia Solutions and Networks Oy

Inventor： Klaus Hugl ,  Timo Erkki Lunttila ,  Kari Juhani Hooli ,  Esa Tapani Tiirola ,  Sigen Ye

IPC: H04W72/14 ,  H04W72/12 ,  H04W28/18 ,  H04L5/00 ,  H04B7/06 ,  H04W16/14

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 all 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.

公开(公告)号：US10284314B2

公开(公告)日：2019-05-07

申请号：US14889498

申请日：2013-05-09

Applicant: Nokia Solutions and Networks Oy

Inventor： Timo Erkki Lunttila ,  Esa Tapani Tiirola ,  Kari Juhani Hooli ,  Rapeepat Ratasuk

IPC: H04B17/24 ,  H04L1/00 ,  H04W24/08 ,  H04L5/14 ,  H04B17/345

Abstract: Channel state information is generated by a communication device. The device can determine that at least one uplink resource element of a radio frame is to be left unoccupied and perform at least one interference measurement on at least one downlink resource element coinciding with the at least one unoccupied uplink resource element, A channel state information report can then be generated based on the measurement, A network node may cause the communication device to leave at feast one uplink resource element of a radio frame unoccupied.

公开(公告)号：US09986543B2

公开(公告)日：2018-05-29

申请号：US15457115

申请日：2017-03-13

Applicant: Nokia Solutions and Networks Oy

Inventor： Timo Erkki Lunttila ,  Esa Tapani Tiirola ,  Frank Frederiksen

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/06 ,  H04L1/18

CPC classification number: H04W72/0413 ,  H04L1/1861 ,  H04L1/1864 ,  H04L5/0055 ,  H04L5/0091 ,  H04W72/042 ,  H04W72/0493 ,  H04W72/06

Abstract: The disclosure relates to the allocation of resources for wireless communications. An index for an uplink control resource is determined in accordance with a predefined rule. The determining takes into account an index associated with a physical downlink resource and the amount of downlink resources to be mapped on the uplink control resource.

公开(公告)号：US09900888B2

公开(公告)日：2018-02-20

申请号：US14763576

申请日：2013-01-28

Applicant: Nokia Solutions and Networks Oy

Inventor： Kari Juhani Hooli ,  Yuyu Yan ,  Timo Erkki Lunttila ,  Esa Tapani Tiirola ,  Pasi Eino Tapio Kinnunen

IPC: H04W72/04 ,  H04W72/12 ,  H04L12/805

CPC classification number: H04W72/0446 ,  H04L47/36 ,  H04W72/1257 ,  H04W72/1268

Abstract: The disclosure relates to subframe bundling in a system where subframe bundling is based on a set of bundling definitions. Control information is provided for at least one communication device configured to provide subframe bundling such that the control information is generated to be at least partially inconsistent with the set of bundling definitions. The control information is signaled to the at least one communication device to adjust the state of subframe bundling and/or size of subframe bundled transmission in accordance with a predefined rule by the at least one communication device. When the device receives the information, is determines that received control information is inconsistent with the set of bundling definitions. In response to the determination, the device can adjust the state of subframe bundling and/or size of subframe bundled transmission.