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61.发明授权
公开(公告)号：EP3146663B1
公开(公告)日：2019-07-10
申请号：EP14732649.0
申请日：2014-05-23
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公开(公告)号：EP3412105A1
公开(公告)日：2018-12-12
申请号：EP17704828.7
申请日：2017-02-03
IPC分类号： H04W74/08
CPC分类号： H04W74/0808 , H04W74/006
摘要： A method of controlling a user equipment (UE) comprises determining an operating environment of the UE, and selectively instructing the UE to perform a first or second listen- before-talk (LBT) procedure or to use a first or second set of LBT parameters, according to the determined operating environment.
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公开(公告)号：EP3178263B1
公开(公告)日：2018-10-03
申请号：EP15756253.9
申请日：2015-08-05
CPC分类号： H04W76/28 , H04W16/14 , H04W52/0206 , H04W52/0212 , H04W52/0216 , H04W52/0219 , H04W72/121 , H04W72/1252 , H04W72/1278 , H04W72/1289 , Y02D70/00 , Y02D70/1226 , Y02D70/1244 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/21 , Y02D70/24
摘要： An example method is disclosed that is implemented by a base station that supports a plurality of UEs configured to use DRX. The base station transmits respective individual scheduling assignments to each UE in a group of the UEs during an initial, on Duration portion of a DRX cycle, thereby preventing the group of UEs from immediately entering a DRX mode after the onDuration of the DRX cycle. For each UE in the group, the scheduling assignments schedule a respective first data transmission during the onDuration, and also schedule a respective second data transmission after the onDuration but within the DRX cycle. The base station transmits the scheduled first data transmissions during the onDuration of the DRX cycle, and transmits the scheduled second data transmissions after the onDuration but within the DRX cycle. For each UE in the group, its second data transmission includes more data than its first data transmission.
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64.发明授权
公开(公告)号：EP2656651B1
公开(公告)日：2018-08-29
申请号：EP11808931.7
申请日：2011-11-08
CPC分类号： H04L63/1458 , H04W12/12
摘要： A method of managing wireless transmissions from a mobile handset includes determining whether the mobile handset is a source of a Random Access Channel (RACH) overload in the wireless network and, upon determining that the mobile handset is a source of the RACH overload, configuring the mobile handset to replace usage of a first RACH resource causing the RACH overload with usage of a second RACH resource specified by the processor.
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公开(公告)号：EP3066878B1
公开(公告)日：2018-08-15
申请号：EP14809121.8
申请日：2014-11-10
发明人： KOORAPATY, Havish , LARSSON, Daniel
IPC分类号： H04W56/00
CPC分类号： H04W56/0015 , H04L5/0007 , H04W24/10 , H04W56/0035 , H04W72/0426 , H04W72/085 , H04W88/08
摘要： Systems and methods related to time and frequency synchronization of a base station in a cellular communications network are disclosed. In some embodiments, a method of operation of a synchronizing base station comprises selecting a first base station for frequency synchronization and a second base station for time synchronization, where the second base station can be different than the first base station selected for frequency synchronization. The method further comprises performing frequency synchronization using a signal transmitted from a radio interface of the first base station and performing time synchronization using a signal transmitted from a radio interface of the second base station. In this manner, the synchronizing base station is enabled to independently select the first and second base stations used for frequency and time synchronization, respectively.
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公开(公告)号：EP2880803B1
公开(公告)日：2018-07-25
申请号：EP13704638.9
申请日：2013-01-17
IPC分类号： H04L5/00
CPC分类号： H04W72/042 , H04L5/0007 , H04L5/0053
摘要： Techniques for supporting both localized and frequency-distributed control channel messages in the same enhanced control channel region are disclosed. An example method begins with receiving (2010) a downlink signal comprising an enhanced control region consisting of at least two sets of physical resource block (PRB) pairs. The method continues with the forming (2020) of one or more distributed enhanced control-channel elements (eCCEs) from a first set of PRB pairs by aggregating physical layer building blocks from multiple PRB pairs to form each distributed eCCE. One or more localized eCCEs are formed (2030) from a second set of PRB pairs by aggregating physical layer building blocks such that each of the localized eCCEs is formed from physical layer building blocks from within a single PRB pair of the second set. Control channel message candidates are formed (2050) from the distributed eCCEs and localized eCCEs, respectively, and decoded (2060).
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公开(公告)号：EP3100580B1
公开(公告)日：2018-06-13
申请号：EP15704595.6
申请日：2015-01-29
发明人： KOORAPATY, Havish , FALAHATI, Sorour , FRENNE, Mattias , JÖNGREN, George , KAZMI, Muhammad , LARSSON, Daniel , YANG, Yu
CPC分类号： H04W36/0083 , H04J11/0069 , H04J11/0073 , H04J11/0076 , H04J11/0083 , H04J13/0074 , H04W56/00 , H04W56/001 , H04W84/02
摘要： In some embodiments, a network node has an associated cell identifier (“cell ID”). The network node creates a primary synchronization signal (PSS), a first secondary synchronization signal, and one or more additional secondary synchronization signals. The combination of signals defines the cell ID. The cell ID is one of N possible cell IDs and N is determined by multiplying: a number of possible values for the PSS; a number of possible values for the first secondary synchronization signal; and for each additional secondary synchronization signal, a number of possible values for the additional secondary synchronization signal, such that N is greater than a legacy number of possible cell IDs determined by multiplying the number of possible values for the PSS and the number of possible values for the first secondary synchronization signal. The network node transmits the combination of the created signals.
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68.发明授权METHOD AND APPARATUS FOR ENHANCED UPLINK REFERENCE SIGNAL IN LISTEN-BEFORE-TALK SYSTEMS 有权用于在听前通话系统中增强的上行链路参考信号的方法和设备
公开(公告)号：EP3198773B1
公开(公告)日：2018-05-09
申请号：EP15781455.9
申请日：2015-09-25
CPC分类号： H04W74/0816 , H04L5/0048 , H04L5/0053 , H04W16/14
摘要： In one aspect, the teachings herein describe an enhanced Reference Signal, RS, that is designed to be available for transmission in any symbol of a subframe. The enhanced RS may be an enhanced Sounding Reference Signal, SRS, or an enhanced DeModulation Reference Signal, DMRS. The enhanced RS provides an advantageous mechanism for channel capture in Listen-Before-Talk, LBT, scenarios, because subsequent to performing a successful Clear Channel Assessment, CCA, a node can begin transmitting the enhanced RS, to thereby capture the channel. The node can then transition into an actual data transmission on the channel according to whatever timing constraints are associated with the data transmission. In at least one embodiment, the enhanced RS is used for capturing an uplink channel on an LTE carrier operated in unlicensed spectrum, as part of a License Assisted Access, LAA, configuration.
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69.发明授权
公开(公告)号：EP2979507B1
公开(公告)日：2018-02-21
申请号：EP13717585.7
申请日：2013-03-25
CPC分类号： H04W72/0453 , H04L5/003 , H04L5/0053 , H04W72/0406 , H04W72/042
摘要： A wireless device (120) and a method for enabling access to a radio network node (110) as well as a radio network node (110) and a method for enabling the wireless device (120) to enable access to the radio network node (110) are disclosed. The wireless device (120) supports a first transmission bandwidth. The radio network node (110) operates a carrier on a second transmission bandwidth. The first transmission bandwidth is narrower than the second transmission band width. The wireless device (120) obtains (202) information about the carrier. The wireless device (120) determines (206) a mapping scheme for mapping a set of enumerable elements, e.g. resource blocks or sequence elements, to frequency ranges based on the information about the carrier.
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公开(公告)号：EP2813110B1
公开(公告)日：2017-12-20
申请号：EP12868179.8
申请日：2012-06-13
发明人： FRENGER, Pål , KOORAPATY, Havish
CPC分类号： H04B1/401 , H04B7/0689 , H04B7/0693 , H04W52/0206 , H04W88/06 , Y02D70/1262 , Y02D70/444
摘要： In a first antenna mode in a multi-antenna port radio access node, a set of logical antenna ports and its associated resource elements are mapped to a first set of physical antenna ports. Each physical antenna port comprises at least one power amplifier. Switching from first antenna mode to a second antenna mode is initiated upon receipt of information triggering antenna mode switching at a first point of time. During a time interval from the first point of time to a second point of time, the logical antenna ports are re-mapped to a second set of physical antenna ports. At the second point of time, at the end of the time interval, the antenna mode is switched to a second antenna mode by changing supply of power to each physical antenna port represented in the first set of physical antenna ports but not in the second set of antenna ports.
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