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公开(公告)号：EP3515109A1
公开(公告)日：2019-07-24
申请号：EP17859927.0
申请日：2017-09-28
发明人： SUN, Hao , CHEN, Zheng , CHENG, Yan , XUE, Lixia
IPC分类号： H04W28/02
摘要： This application provides a synchronization signal sending method and receiving method, and an apparatus. The sending method includes: determining a target frequency resource, where a frequency domain position of the target frequency resource is determined based on a frequency interval of synchronization channels, the frequency interval of synchronization channels is 2 m times a predefined frequency resource of a physical resource block, and m is a preset nonnegative integer; and sending a synchronization signal by using the target frequency resource. In the embodiments of this application, the frequency domain position of the frequency resource occupied by the synchronization signal is determined based on the frequency interval of synchronization channels, and the frequency interval of synchronization channels is 2 m times a predefined frequency band width of the frequency resource of a predefined physical resource block. This is for the benefit of increasing a quantity of candidate frequency resources of the synchronization signal, thereby increasing available frequency domain mapping positions for the synchronization signal.
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公开(公告)号：EP2941077B1
公开(公告)日：2019-06-05
申请号：EP13871424.1
申请日：2013-01-18
发明人： CHENG, Yan , MAZZARESE, David , XUE, Lixia , ZHOU, Yongxing , CLASSON, Brian
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公开(公告)号：EP2725732B1
公开(公告)日：2019-02-27
申请号：EP12823754.2
申请日：2012-08-09
发明人： CHENG, Yan , LV, Yongxia
IPC分类号： H04L1/16
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公开(公告)号：EP3407516A1
公开(公告)日：2018-11-28
申请号：EP16891285.5
申请日：2016-12-15
发明人： CHENG, Yan , CHEN, Zheng
IPC分类号： H04L1/00
CPC分类号： H04W28/065 , H04L1/0061 , H04L1/08 , H04L1/1819 , H04L1/1825 , H04L1/1858 , H04L1/1864 , H04L1/189 , H04L1/1896 , H04L5/0048 , H04L5/0055 , H04L5/14 , H04W72/0406 , H04W72/0446
摘要： Embodiments of the present invention relate to the field of communications technologies, and provide an information transmission method and apparatus, to flexibly set a quantity of subframes in subframe aggregation and a redundancy version based on a channel condition. The method includes: sending, by a first device, downlink control information to a second device, where the downlink control information includes subframe aggregation information, and the subframe aggregation information is used by the first device to indicate, to the second device, a quantity of subframes used in subframe aggregation and/or a redundancy version corresponding to at least one of subframes used in subframe aggregation; and receiving, by the first device, uplink information sent by the second device according to the downlink control information. The embodiments of the present invention are used for subframe aggregation.
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公开(公告)号：EP3223451B1
公开(公告)日：2018-11-21
申请号：EP17166145.7
申请日：2013-09-27
发明人： BERGGREN, Fredrik , CHENG, Yan , XUE, Lixia , MAZZARESE, David
CPC分类号： H04W72/0453 , H04L1/1854 , H04L1/1861 , H04L5/001 , H04L5/0055 , H04L5/14 , H04L5/1469
摘要： Method (500) in a radio network node (110), a radio network node (110), method (700) in a recipient (120) and a recipient (120), for data transmission and assignment of uplink control channel resources (310) in an uplink FDD carrier (300), for enabling a recipient (120) to provide HARQ feedback for data transmitted in the downlink using carrier aggregation of a downlink FDD carrier (350) and at least one TDD carrier (200). The method (500) comprises associating (501) each downlink subframe (360) in the downlink FDD carrier (350) with an uplink control channel subframe (310) in the uplink FDD carrier (300). Further, the method (500) comprises associating (502) each downlink subframe (210) and special subframe (220) in the TDD carrier (200) with an uplink control channel subframe (310) in the uplink FDD carrier (300). The method (500) also comprises assigning (503) uplink control channel resources (310) in the uplink FDD carrier (300) to the recipient (120), according to the made associations (501, 502). In addition, the method also comprises transmitting (504) data on said downlink FDD carrier (350) and/ or TDD carrier (200), to be received by the recipient (120).
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公开(公告)号：EP3393179A1
公开(公告)日：2018-10-24
申请号：EP16887689.4
申请日：2016-11-18
发明人： SUN, Hao , ZHANG, Xu , CHENG, Yan
CPC分类号： H04W52/146 , H04L1/1812 , H04W52/04 , H04W52/14 , H04W52/20 , H04W52/286 , H04W52/386 , H04W52/48 , H04W52/58 , H04W74/08
摘要： Embodiments of the present invention relate to the field of communications technologies, and provide an uplink power control method and an apparatus, so as to perform uplink closed-loop power control in a group scheduling manner. The method includes: determining, by a base station, power control information, where the power control information is used to control a power of user equipment; sending, by the base station, HARQ acknowledgment feedback information to X user equipments, where the HARQ acknowledgment feedback information carries the power control information of at least one of the X user equipments, the X user equipments contend for use of a same transmission resource, and X is an integer greater than or equal to 1; receiving, by the user equipment, acknowledgment feedback information sent by the base station to the X user equipments; and parsing the HARQ acknowledgment feedback information; and if it is determined that the HARQ acknowledgment feedback information includes the power control information of the user equipment, performing power control on the user equipment based on the power control information of the user equipment.
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公开(公告)号：EP3393165A1
公开(公告)日：2018-10-24
申请号：EP18161137.7
申请日：2010-10-28
发明人： ZHAO, Yajun , WANG, Jianguo , CHENG, Xingqing , WU, Zuomin , CHENG, Yan
摘要： A method and an apparatus for implementing channel measurement are disclosed in the present invention. The method includes: determining an antenna port subset, which is required to be measured, for a UE according to current state information of the user equipment UE; and informing the UE to perform channel measurement for the subset of antenna ports that is required to be measured and feed back channel state information. Through the present invention, when the state information of the UE meets a certain condition, the UE measures only the reference signals of a part of antenna ports, and feeds back channel state information for this part of antenna ports. Therefore, the overhead generated by the feedback of the UE to the channel state information is reduced.
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公开(公告)号：EP3373666A1
公开(公告)日：2018-09-12
申请号：EP17210614.8
申请日：2012-11-28
发明人： ZHANG, Xingwei , CHANG, Junren , CHEN, Yuhua , FAN, Xiaoan , LI, Bo , CHENG, Yan , LI, Yuanjie
CPC分类号： H04W52/30 , H04W52/146 , H04W52/243 , H04W52/346 , H04W52/365 , H04W52/367 , H04W72/0473
摘要： An uplink transmission power control method and a user equipment are provided, where the method includes: determining, by a UE, whether uplink channels are simultaneously transmitted over adjacent sub frames between multiple carriers; where the adjacent subframes between the multiple carriers are partially overlapped; and timing advance values of the multiple carriers are different; and if uplink channels are simultaneously transmitted over adjacent sub frames between multiple carriers, processing, by the user equipment, an uplink channel transmitted over the last symbol on a partially overlapped subframe of another carrier except a carrier having the greatest timing advance value, so that total transmission power of the uplink channels is lower than the maximum transmission power or an interference level of the user equipment. In the embodiments of the present invention, when the UE sends the uplink channels through carriers of different TAGs and adjacent subframes between the carriers of different TAGs are partially overlapped, uplink transmission power of the UE may be prevented from exceeding the maximum transmission power of the UE, or uplink transmission power of the UE may be prevented from reaching an interference level so as to result in an interference limitation.
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19.发明公开
公开(公告)号：EP3340556A1
公开(公告)日：2018-06-27
申请号：EP15903794.4
申请日：2015-09-14
发明人： CHENG, Yan , SUN, Hao
IPC分类号： H04L27/26
CPC分类号： H04W72/0413 , H04B7/12 , H04J13/0059 , H04L5/0021 , H04L5/0053 , H04L27/26 , H04L27/2613 , H04L27/2636 , H04W72/0446 , H04W72/14
摘要： Embodiments of the present invention provide an uplink control information transmission method, a terminal device, a base station, and a system. The transmission method includes the following steps: First, the terminal device determines an information bit sequence of to-be-transmitted uplink control information. Then, the terminal device determines a first sequence according to the information bit sequence, where the first sequence is a linear-phase complex exponential sequence. Finally, the terminal device sends the to-be-transmitted uplink control information to the base station by using an uplink control channel, where the uplink control channel occupies N symbols, N is a positive integer, a signal carried on a symbol l of the N symbols is directly proportional to a product of the first sequence and a second sequence, and the second sequence is a cyclic shift sequence.
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公开(公告)号：EP3340513A1
公开(公告)日：2018-06-27
申请号：EP15903809.0
申请日：2015-09-15
发明人： CHENG, Yan , XUE, Lixia
IPC分类号： H04L1/16
摘要： This disclosure relates to the field of wireless communications technologies, and in particular, to an information transmission apparatus, method, and system, so as to resolve a problem that a data transmission delay is relatively long because uplink control information is not fed back in a timely manner. In a communications apparatus provided in an embodiment, a processing module is configured to determine a frame structure of a serving cell, where in this frame structure, one radio frame includes at least one first subframe, the first subframe includes: a first part: a symbol used for downlink transmission; a second part: a guard period GP; and a third part: a symbol used for uplink transmission, and the uplink transmission includes uplink control information transmission; and a transceiver module is configured to send and receive information in the serving cell according to the frame structure, determined by the processing module, of the serving cell. The third part is used for uplink control information transmission, so that uplink control information can also be fed back in a subframe used for downlink transmission. Therefore, the problem that a data transmission delay is relatively long because uplink control information is not fed back in a timely manner is resolved.
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