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1.发明公开公开(公告)号：US20240298281A1
公开(公告)日：2024-09-05
申请号：US18575175
申请日：2021-07-01
CPC分类号： H04W56/004 , H04J3/0667
摘要： According to certain embodiments, a method (700) by a network node (660) includes determining (705) a timing error associated with a closed loop comprising at least one radio link between two radio points. The timing error is determined based on at least one timing measurement associated with the at least one radio link. The method further includes adjusting (710) timing information carried over the a timing protocol link based on the timing error associated with the closed loop comprising the at least one radio link.
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2.发明授权公开(公告)号：US11864139B2
公开(公告)日：2024-01-02
申请号：US17426795
申请日：2020-01-30
IPC分类号： H04W56/00
CPC分类号： H04W56/0015 , H04W56/0045
摘要： A method performed by a transmitting device, for handling communication in a wireless communications network. The transmitting device transmits a Precision Time Protocol, PTP, message carrying synchronization information to a receiving device over a radio interface.
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3.发明授权公开(公告)号：US11368215B2
公开(公告)日：2022-06-21
申请号：US16768785
申请日：2017-12-13
发明人： Fabio Cavaliere , Giulio Bottari , Stefano Ruffini
IPC分类号： H04B10/077 , H04B10/2513
摘要： An optical link for a communication network, the optical link having an optical fibre link, a downstream transmitter, a downstream receiver, an upstream transmitter and an upstream receiver. The upstream and downstream transmitters are configured to transmit a respective pilot tone on a respective optical carrier and are configured to tune a frequency of the pilot tone within a preselected frequency range. The upstream and downstream receivers are configured respectively to determine an upstream notch frequency, fnotch-US, and a downstream notch frequency, fnotch-DS, of respective detected photocurrents from at least one respective pilot tone frequency at which the respective detected photocurrent is equal to or lower than a photocurrent threshold. The optical link also includes processing circuitry configured to receive the upstream and downstream notch frequencies and configured to estimate a propagation delay difference of the optical link depending on the upstream and downstream notch frequencies.
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公开(公告)号：US11314772B2
公开(公告)日：2022-04-26
申请号：US16605924
申请日：2017-04-26
发明人： Giulio Bottari , Stefano Ruffini
摘要： A method of data replication between a first data center and a second data center, wherein the first data center has a data set to be replicated, the method comprising: determining (501) whether a first path from the first data center to the second data center is suitable for the data set to be replicated, by: transmitting (502) test data along the first path, taking (503) latency measurements for the test data along the first path; and determining a latency parameter of the first path using the latency measurements; and determining (504) if the latency parameter of the test data is less than a maximum latency threshold. If the latency parameter is less than the maximum latency threshold, the method performs (505) replication of the data set using the first path.
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公开(公告)号：US20220030530A1
公开(公告)日：2022-01-27
申请号：US17297802
申请日：2019-10-15
发明人： Hubertus Munz , Kun Wang , Stefano Ruffini , Zhenhua Zou , John Walter Diachina , Torsten Dudda , Paul Schliwa-Bertling
摘要： A method performed by a transmitting device, in a 3GPP wireless communication 5 system (100), for handling generalized Precise Timing Protocol (gPTP) signaling, from a Time Sensitive Network (TSN) is provided. The transmitting device receives (1301) a gPTP frame from the TSN network. The gPTP frame comprises time information, an indication of a time domain related to the time information and/or a Medium Access Control (MAC) address of a second end station connected to a receiving device. Based 10 on the indication of the time domain and/or the MAC address, the transmitting device determines (1302) the receiving device which the gPTP frame relates to. The transmitting device transmits (1304), to the determined receiving device, the gPTP frame in a PDU session related to the determined receiving device.
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公开(公告)号：US20210297965A1
公开(公告)日：2021-09-23
申请号：US17257542
申请日：2018-07-02
发明人： Garry Irvine , Alexandra Mikaelsson , Magnus Sandgren , Mårten Wahlström , Mikael Johansson , Ohan Khodaverdian , Stefano Ruffini
IPC分类号： H04W56/00
摘要： A method performed by a system of a wireless communication network is disclosed. The method relates to provisioning of a time-sensitive service related to a wireless device. The wireless communication network comprises a plurality of antenna reference points, ARPs, of one or more radio access network nodes of the wireless communication network. The method comprises obtaining information that a first ARP and a second ARP of the plurality of ARPs are to provide the time-sensitive service to the wireless device, determining, by inter-ARP radio signalling between ARPs of one or more pairs of the plurality of ARPs, one of the one or more pairs including the first ARP and one of the one or more pairs including the second ARP, a relative timing error between the first ARP and the second ARP, and taking the determined relative timing error into consideration when providing the service to the wireless device.
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公开(公告)号：US20200259896A1
公开(公告)日：2020-08-13
申请号：US16274800
申请日：2019-02-13
发明人： Joachim Sachs , Abdulrahman Alabbasi , Mattias Andersson , Niklas Andgart , Ola Angelsmark , José Araújo , Muhammad Ikram Ashraf , Kumar Balachandran , Robert Baldemair , Rodrigo Berg , Yufei Blankenship , Fedor Chernogorov , John Walter Diachina , Torsten Dudda , Henrik Enbuske , Sorour Falahati , János Farkas , Jonas Fröberg Olsson , Majid Gerami , Harald Gustafsson , Kimmo Hiltunen , Andreas Höglund , Torgny Holmberg , Zsolt Kenesi , András Kern , Kittipong Kittichokechai , Anna Larmo , Johan Lundsjö , György Miklós , Hubertus Munz , Gabor Nemeth , Johannes Nygren , Johan Olsson , Alexandros Palaios , Dhruvin Patel , Joakim Persson , Per Persson , Jose Luis Pradas , Sándor Rácz , Pradeepa Ramachandra , Norbert Reider , Dinand Roeland , Stefano Ruffini , Patrik Salmela , Sara Sandberg , Magnus Sandgren , Paul Schliwa-Bertling , Alexey Shapin , Nianshan Shi , Bikramjit Singh , Per Skarin , Bernard Smeets , Ying Sun , Dennis Sundman , Fredrik Svensson , Malgorzata Svensson , Geza Szabo , Wolfgang Tonutti , Balázs Varga , Mårten Wahlström , Kun Wang , Yi-Pin Eric Wang , Osman Nuri Can Yilmaz , Zhenhua Zou , Miguel Lopez
摘要： Techniques for enhancing performance in Industrial Internet-of-Things (IIoT) scenarios, including techniques for time-sensitive networking (TSN) and 5G wireless network integration. An example method, performed by a wireless device, comprises receiving system information (SI) from a radio base station (RBS) of a radio access network (RAN), the SI being indicative of support for TSN through the RBS, and establishing at least one TSN stream with an external data network, through the RBS. The example method further includes receiving a first timing signal from the wireless communications network, via the RBS, receiving a second timing signal from the external TSN data network to which the wireless device is connected, comparing the first timing signal to the second timing signal to determine an offset, and transmitting the offset to the wireless communications network.
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公开(公告)号：US10355800B2
公开(公告)日：2019-07-16
申请号：US15523879
申请日：2014-11-03
发明人： Stefano Ruffini , Teresa Pepe , Marzio Puleri
摘要： The method comprises analyzing (203) probing packets sent on a plurality of end-to-end paths over links of the network. At least one analyzed probing packet is a timing packet comprising timing information for synchronization. The analyzing comprising analyzing probing packets sent on all of a set of probing paths. The set is selected (201) such that the analyzing provides a determination of a performance of each individual link. The method further comprises determining (204) the performance of individual links.
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公开(公告)号：US10299316B2
公开(公告)日：2019-05-21
申请号：US15574194
申请日：2015-05-29
发明人： Stefano Ruffini , Giulio Bottari , Fabio Cavaliere , Paola Iovanna , Filippo Ponzini , Roberto Sabella , Stefano Stracca
IPC分类号： H04W88/08 , H04B10/2575 , H04W88/14 , H04W92/20 , H04L12/64
摘要： A network node (30) for a radio access network, wherein the network node comprises a switch system (35) configured to switch traffic for a plurality of base stations (3, 5; 8) of the radio access network. The switch system (35) is configured to provide for communication between a remote radio unit (3) and a baseband processing unit (5, 12) of the said plurality of base stations. The switch system (35) is configured to provide for communication between a first base station (8) and a second base station (3, 5) of said plurality of base stations. At least one of the first or second base station is a radio base station (8) comprising baseband processing.
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公开(公告)号：US20180205478A1
公开(公告)日：2018-07-19
申请号：US15918567
申请日：2018-03-12
IPC分类号： H04J3/06 , H04L12/26 , H04B1/7073 , H04B10/2575 , H04B7/26 , H04B7/212
CPC分类号： H04J3/0658 , H04B1/7073 , H04B7/2125 , H04B7/2678 , H04B10/073 , H04B10/25753 , H04B10/25758 , H04B2215/065 , H04J3/0644 , H04J3/0647 , H04J3/065 , H04J3/0667 , H04J3/0676 , H04L43/0858 , H04L43/0864 , H04L43/106
摘要： Techniques are disclosed for determining propagation delay of a first path and or of a second path which connect a first transceiver unit associated with a first clock to a second transceiver unit associated with a second clock in a communications network, based on a first time reference representing a time of transmission of a first signal from the first transceiver unit, a second time reference representing the time of receipt of the first signal at the second transceiver unit, a third time reference representing a time of transmission of a reply to the second signal from the second transceiver unit, and a fourth time reference representing the time of receipt of the reply to the second signal at the first transceiver unit.
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