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公开(公告)号：US20240276508A1
公开(公告)日：2024-08-15
申请号：US18642310
申请日：2024-04-22
发明人： Olof Liberg , David Sugirtharaj , Emma Wittenmark , Mai-Anh Phan
IPC分类号： H04W72/23 , H04L1/1867 , H04W24/02 , H04W52/02 , H04W72/566 , H04W76/28
CPC分类号： H04W72/23 , H04L1/1887 , H04W24/02 , H04W52/0216 , H04W72/569 , H04W76/28
摘要： New signaling is defined from wireless devices to a wireless communication network, concerning the wireless devices' duty cycle statuses. This allows the network to optimize its control of the radio resource usage. Additionally, embodiments described herein provide new signalling from the network to wireless devices concerning the network's duty cycle status. This allows wireless devices to optimize their idle mode operation, including decisions whether to request a connection setup or remain in idle mode. Embodiments described and claimed herein provide a set of simple methods for operating a cellular system in a duty cycle controlled radio frequency band.
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公开(公告)号：US20230337096A1
公开(公告)日：2023-10-19
申请号：US18214173
申请日：2023-06-26
发明人： Olof Liberg , David Sugirtharaj , Emma Wittenmark , Mai-Anh Phan
CPC分类号： H04W36/26 , H04W36/00837 , H04W24/02 , H04W36/22 , H04W72/0453
摘要： A network-based method allows a network to optimize its control of radio resource usage by directing connected and idle mode User Equipment (UEs) (10) to another network node, e.g. a neighbor cell, having a better duty cycle, or by configuring the UEs to use another frequency band served by the same network node or a different network node. Signaling its duty cycle budget to the UEs allows the UEs to optimize their idle mode operation by performing cell re-selection to a network node which has a better duty cycle budget.
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公开(公告)号：US10701565B2
公开(公告)日：2020-06-30
申请号：US16087653
申请日：2017-03-23
摘要： A network node for wireless access is operating in a cellular network for an unlicensed frequency band and arranged for serving wireless devices in the unlicensed frequency band. The serving of the wireless devices in the unlicensed band relies on making a clear channel assessment in the unlicensed band for ascertaining that the unlicensed band is currently not occupied by other transmissions and when not occupied commencing transmission. Upon commencing the transmission, the network node is arranged to attempt scheduling a paging message together with a message providing a discovery signal and determine whether the transmission of the discovery signal and the paging message use the same subframe scrambling code, and if they do, transmit the paging message and the discovery signal in the same subframe. A method and computer program for the network node are also disclosed.
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公开(公告)号：US20170359817A1
公开(公告)日：2017-12-14
申请号：US15429970
申请日：2017-02-10
CPC分类号： H04W72/0426 , H04L5/00 , H04W16/14 , H04W72/0453 , H04W76/27
摘要： Systems and methods relating to Discovery Signal Measurement Timing Configuration (DMTC) are disclosed. In some embodiments, a method of operation of a radio access node in a cellular communications network comprises sending, to a wireless device, a DMTC for one of a group consisting of: (a) a Secondary Cell (SCell) configured for the wireless device such that the DMTC is a specific DMTC for the SCell and (b) a frequency on which one or more asynchronous cells are operating, an asynchronous cell being a cell that is unsynchronized with a Primary Cell (PCell) of the wireless device. A DMTC configuration that is specific to a SCell provides improved measurement performance on the SCell because, e.g., the DMTC configuration can be specifically tailored to that SCell. A DMTC configuration for a frequency on which one or more asynchronous cells are operating provides improved measurement performance on that carrier.
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公开(公告)号：US11716662B2
公开(公告)日：2023-08-01
申请号：US17274275
申请日：2019-09-19
发明人： Olof Liberg , David Sugirtharaj , Emma Wittenmark , Mai-Anh Phan
IPC分类号： H04W36/00 , H04W36/26 , H04W24/02 , H04W36/22 , H04W72/0453
CPC分类号： H04W36/26 , H04W24/02 , H04W36/00837 , H04W36/22 , H04W72/0453
摘要： A network-based method allows a network to optimize its control of radio resource usage by directing connected and idle mode User Equipment (UEs) (10) to another network node, e.g. a neighbor cell, having a better duty cycle, or by configuring the UEs to use another frequency band served by the same network node or a different network node. Signaling its duty cycle budget to the UEs allows the UEs to optimize their idle mode operation by performing cell re-selection to a network node which has a better duty cycle budget.
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公开(公告)号：US11223982B2
公开(公告)日：2022-01-11
申请号：US16620308
申请日：2018-06-13
发明人： Chunhui Zhang , Peter Alriksson , Yusheng Liu , Mai-Anh Phan , David Sugirtharaj , Emma Wittenmark
摘要： A method performed by a wireless communication device for reducing handover delay, wherein the wireless communication device is arranged to operate in a cellular communication system and to operate in a cell using unlicensed spectrum. The method includes receiving a downlink, DL, signal from network node operating a neighbouring cell operating in the unlicensed spectrum, wherein the DL signal includes a discovery reference signal, DRS, subframe, storing data associated with the DRS subframe, receiving a handover command from a network node operating a serving cell where the neighbouring cell is a target cell, and performing a random access procedure for handover to the target cell. A device performing the method and a computer program for implementing the method are also disclosed.
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公开(公告)号：US20210336731A1
公开(公告)日：2021-10-28
申请号：US16462105
申请日：2019-05-02
发明人： Olof Liberg , David Sugirtharaj , Yi-Pin Eric Wang
摘要： A method performed by a network node (260, 500) in a wireless communications system (200) is disclosed. The method comprises generating (401) a time-continuous baseband signal by applying a phase compensation that removes a physical resource block (PRB)-dependent phase rotation on a subcarrier. The method comprises converting (402) the generated time-continuous baseband signal into a radio frequency signal. The method comprises transmitting (403) the radio frequency signal to a wireless device over a radio interface.
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公开(公告)号：US11101966B2
公开(公告)日：2021-08-24
申请号：US16640120
申请日：2018-08-16
发明人： Anders Wallén , Yusheng Liu , David Sugirtharaj
摘要： A method is arranged to be performed by a network node of a cellular communication system when operating according to a scheme where system information for enabling a wireless device to access a cell operated by the network node is broadcasted on an anchor channel. The method includes acquiring a first set of control information and a second set of control information to be provided to the wireless device, encoding the first set of control information to an information block, adapting the information block based on the second set of control information by selecting at least one of a plurality of partitions of the information block and broadcasting the adapted information block on the anchor channel. The selection provides information about the second set of control information. A method arranged to be performed by a wireless device of a cellular communication system is also provided.
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公开(公告)号：US10609624B2
公开(公告)日：2020-03-31
申请号：US15767159
申请日：2016-08-18
摘要： Disclosed herein is a method implemented in a network node for transmitting data to a wireless device, wherein the data is time aligned with a periodic high priority transmission. The method comprises the steps of defining a zone prior to the occasion of the periodic high priority transmission where data packets could be aligned, identifying suitable data packets to schedule in the zone prior to the periodic high priority transmission, performing a clear channel assessment—CCA—and transmitting the periodic high priority transmission and potentially the data packets. Also disclosed is an arrangement and a computer program product.
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公开(公告)号：US20190319666A1
公开(公告)日：2019-10-17
申请号：US16348240
申请日：2016-12-16
IPC分类号： H04B1/7156 , H04W52/02 , H04W56/00 , H04B1/7136
摘要： A frequency hopping wireless communication device (30) selects the most efficient synchronization procedure given the circumstances of the wireless communication device (30) upon wake-up from a sleep mode. Generally, the wireless communication device (30) assesses the timing deviation of the wireless communication device (30) within the frequency hopping pattern upon waking up from a sleep mode, selects a synchronization procedure responsive to the timing deviation, and implements synchronization using the selected synchronization procedure.
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