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公开(公告)号：US12004107B2
公开(公告)日：2024-06-04
申请号：US18131823
申请日：2023-04-06
IPC分类号： H04W56/00 , H04J11/00 , H04L5/00 , H04W72/044 , H04L27/26
CPC分类号： H04W56/002 , H04J11/00 , H04L5/0057 , H04L5/0094 , H04W56/001 , H04W56/0035 , H04W72/044 , H04J2011/0096 , H04L5/0023 , H04L27/2662
摘要： The scheduling flexibility of CSI reference signals enables time and frequency synchronization using multiple non-zero CSI-RSs transmitted in the same subframe, or using CSI-RSs transmitted in the same subframe with other synchronization signals. Also, multiple synchronization signals may be scheduled in the same subframe to enable fine time and frequency synchronization without cell-specific reference signals.
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公开(公告)号：US11863329B2
公开(公告)日：2024-01-02
申请号：US16324671
申请日：2017-08-11
IPC分类号： H04L1/1867 , H04L1/00 , H04L1/1812 , H04L1/1829 , H04L5/00 , H04W28/12 , H04W28/22
CPC分类号： H04L1/1887 , H04L1/009 , H04L1/0079 , H04L1/0088 , H04L1/1812 , H04L1/1854 , H04L1/1861 , H04L1/1893 , H04L5/0053 , H04L5/0055 , H04L5/0094 , H04W28/12 , H04W28/22 , H04L5/0051
摘要： According to an aspect, a transmitting device determines, for each of a plurality of transmissions, whether user data to be transmitted within a time transmission interval, TTT, will be closest in time to a DMRS transmitted before the user data or after the user data. If before the user data, all HARQ ACK/NACK data for the transmission is mapped to the earliest in time SC-FDMA symbol carrying user data in the transmission, and to pre-DFT symbols closest in time to the DMRS transmitted before the user data. If after the user data, all HARQ ACK/NACK data for the transmission is mapped to the last in time SC-FDMA symbol carrying user data in the transmission, and to pre-DFT symbols closest in time to the DMRS transmitted after the user data. SC-FDMA signals are formed from user data and control information for the transmission, based on the mapping.
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公开(公告)号：US11582693B2
公开(公告)日：2023-02-14
申请号：US16931080
申请日：2020-07-16
发明人： Daniel Larsson , Ali Behravan , Muhammad Kazmi
摘要： Techniques are provided to ensure that a terminal device is able to perform measurements efficiently when an on/off scheme is used by network nodes, particularly in a heterogeneous network environment. An example method, implemented in a network node, comprises obtaining a discovery signal window pattern, the discovery signal window pattern defining one or more discovery signal windows during which each of a plurality of cells is to transmit a corresponding discovery signal, and sending an indication of the discovery signal window pattern to a terminal device.
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公开(公告)号：US11573504B2
公开(公告)日：2023-02-07
申请号：US16773745
申请日：2020-04-14
IPC分类号： H04W16/14 , G03G15/08 , H04B7/06 , H04L5/00 , H04L27/00 , G03G21/18 , H04W76/15 , G03G15/09 , G03G21/16
摘要： Systems and methods relating to accurate Channel State Information (CSI) measurements for a License Assisted Secondary Cell (LA SCell) are disclosed herein. In some embodiments, a wireless device enabled to operate in a cellular communications network according to a carrier aggregation scheme using both a licensed frequency band and an unlicensed frequency band operates to determine whether a Channel State Information Reference Symbol (CSI-RS) transmission from a LA SCell of the wireless device is present in a subframe, where the LA SCell is in an unlicensed frequency band. The wireless device further operates to process a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is present in the subframe and refrain from processing a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is not present in the subframe.
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公开(公告)号：US11570695B2
公开(公告)日：2023-01-31
申请号：US17092943
申请日：2020-11-09
摘要： There are provided mechanisms for monitoring search spaces. A first method performed by a wireless device comprises receiving an Orthogonal Frequency-Division Multiplexing (OFDM) symbol in a downlink slot. At least part of the OFDM symbol is included in a device-specific search space and in a common search space. The first method comprises monitoring the device-specific search space for at least one device-specific reference signal (RS) and monitoring the common search space for at least one non-device-specific RS. In a second method, a radio access network node transmits an OFDM symbol included in a device-specific search space and in a common search space. The device-specific search space contains a device-specific RS, or the non-device specific search space contains a non-device-specific RS, or both of these apply.
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公开(公告)号：US11324023B2
公开(公告)日：2022-05-03
申请号：US15543731
申请日：2017-05-12
发明人： Henrik Sahlin , Jingya Li , Gustav Wikström , Niklas Andgart , Laetitia Falconetti , Daniel Larsson
摘要： There is provided mechanisms for providing configuration for uplink transmission to a wireless device. A method is performed by a network node. The method comprises transmitting a message comprising configuration for uplink transmission with short TTI operation. The method comprises transmitting a fast grant comprising scheduling of an uplink short TTI for the wireless device.
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公开(公告)号：US20220015129A1
公开(公告)日：2022-01-13
申请号：US17485714
申请日：2021-09-27
摘要： Embodiments herein relate to a communication terminal (10) for handling communication, which communication terminal (10) is being served by a radio access node (12, 13) in a first cell (11) on a carrier of a licensed frequency spectrum and cross-carrier scheduled in a second cell (14) on a carrier of an unlicensed frequency spectrum by the radio access node (12, 13) via the first cell (11). The communication terminal receives an indication that data may be scheduled for the communication terminal (10) on a data channel in the second cell (14). The communication terminal attempts to detect presence of the data channel intended for the communication terminal (10). Then, in case the communication terminal (10) detects presence of the data channel intended for the communication terminal (10), the communication terminal (10) decodes the data channel. In case the communication terminal (10) does not detect presence of the data channel intended for the communication terminal (10), the communication terminal (10) indicates a non-detection of the data channel to the radio access node (12, 13).
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公开(公告)号：US11140678B2
公开(公告)日：2021-10-05
申请号：US16324668
申请日：2017-08-14
发明人： Henrik Sahlin , Niklas Andgart , Laetitia Falconetti , Daniel Larsson , Jingya Li , Gustav Wikström
摘要： There is disclosed a method of operating a terminal (10) in a wireless communication network, the method comprising receiving and/or transmitting according to a transmission time interval, TTI, configuration, the TTI configuration indicating at least one short transmitting time interval having between one or two and seven symbols of duration in a subframe. There are also disclosed related methods and devices.
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公开(公告)号：US20210258975A1
公开(公告)日：2021-08-19
申请号：US17190732
申请日：2021-03-03
IPC分类号： H04W72/12
摘要： According to some embodiments, a method in a network node comprises determining a first uplink/downlink scheduling pattern for a first plurality of consecutive subframes; transmitting the first uplink/downlink scheduling pattern to a wireless device; transmitting at least one subframe to the wireless device according to the first uplink/downlink scheduling pattern; determining a second uplink/downlink scheduling pattern for a second plurality of consecutive subframes, wherein the first plurality of consecutive subframes and the second plurality of consecutive subframes share at least one subframe; and transmitting the second uplink/downlink scheduling pattern to the wireless device.
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公开(公告)号：US11012200B2
公开(公告)日：2021-05-18
申请号：US15346409
申请日：2016-11-08
发明人： Daniel Larsson , Jung-Fu Cheng
摘要： Example embodiments presented herein are directed towards a base station, and corresponding method therein, for determining a control timing configuration. The control timing configuration provides a subframe timing for configuring PUSCH and uplink HARQ-ACK control timing for a cell serving a user equipment in a multiple cell communications network. The user equipment is served by a TDD based cell and a FDD based cell. Example embodiments are also directed towards a user equipment, and corresponding method therein, determining the control timing configuration discussed above.
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