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21.发明公开
公开(公告)号：EP1974568A1
公开(公告)日：2008-10-01
申请号：EP06824581.0
申请日：2006-11-28
摘要： A broadcast-centric cellular communication system improves broadcast channel performance by exploiting the benefits of macro-diversity in a cellular communication system having a plurality of base stations that transmit signals within a plurality of associated cells. The system constructs an identical paging signal at the plurality of base stations, and controls the base stations to simultaneously transmit the identical paging signal. A mobile station camps on a paging channel that is common to the plurality of base stations, and listens to paging messages being simultaneously broadcast by the plurality of base stations. The mobile station selects a base station having a suitable signal quality, and transmits to the selected base station, a response to a paging message addressed to the mobile station.
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22.发明授权
公开(公告)号：EP2229740B1
公开(公告)日：2018-11-21
申请号：EP08705292.4
申请日：2008-01-08
发明人： ZANGI, Kambiz , HUI, Dennis
IPC分类号： H04B7/024 , H04W52/34 , H04B7/0426 , H04B7/06 , H04B7/04
CPC分类号： H04B7/0617 , H04B7/024 , H04B7/0426 , H04B7/0465 , H04W52/346
摘要： In a distributed antenna system that includes a plurality of transmitters and a controller, a method, performed by the controller, may be characterized by performing dirty-paper coding on downlink transmissions to users based on an order of the users, calculating beamforming vectors to provide that each of the downlink transmissions associated with each of the users does not interfere with other users, and maximizing, based on the calculated beamforming vectors, a data rate subject to a power constraint of the distributed antenna system.
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23.发明授权
公开(公告)号：EP2792082B1
公开(公告)日：2018-11-14
申请号：EP12823007.5
申请日：2012-12-17
发明人： HUI, Dennis , ZANGI, Kambiz
CPC分类号： H04B7/024 , H04B7/0465 , H04W52/346 , H04W52/365
摘要： In a Coordinated Multi-point (CoMP) system, the base station (BS) in each serving cell (or sector) is allowed to use not only its own antennas, but also the antennas of neighboring BSs to transmit to mobile terminals in the serving cell to form a floating CoMP cell. The serving BS in each floating CoMP cell computes tentative linear precoding weights for transmissions from the coordinating BSs in the floating CoMP cell to users in the serving cell of the floating CoMP cell. The serving BS determines the power availability for transmit antennas in the floating CoMP cell that are shared with other floating CoMP cells, and scales the tentative precoding weights based on the power availability of the shared transmit antennas to determine final precoding weights so that the power constraints of the shared transmit antennas will not be violated.
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24.发明授权ARRANGEMENT AND METHOD FOR CONTENTION-BASED MULTI-ACCESS IN A WIRELESS COMMUNICATION SYSTEM 有权装置和方法多址接入竞争在基于无线通信系统
公开(公告)号：EP2062458B1
公开(公告)日：2017-03-08
申请号：EP07794166.4
申请日：2007-08-15
发明人： ZANGI, Kambiz
CPC分类号： H04W74/0833 , H04L1/0026 , H04L1/18 , H04L1/20 , H04L25/0242 , H04W28/22 , H04W52/146 , H04W52/242 , H04W52/245 , H04W52/248 , H04W74/0866 , H04W88/08
摘要： An arrangement, method, and access point (AP) in a wireless telecommunication network for providing a user terminal (UT) with access to the network utilizing a contention-based, multi-access uplink channel. The AP includes Nrx receive antennas, where Nrx>1, for receiving simultaneous uplink transmissions from a number of UTs, wherein the number of UTs transmitting on a given slot is less than or equal to Nrx. The AP sends power-control commands to the UTs to control the transmit power of each of the UTs to provide received signals of equal average power at the AP. The AP also instructs each UT to select its transmission data rate based on a noise level at the AP, so as to achieve a desired level of reliability. An MMSE receiver without successive interference cancellation receives the packets transmitted from the UTs and separately demodulates and decodes the packets received from each user terminal.
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25.发明授权EXTENDED COORDINATED MULTIPOINT CELLS TO MITIGATE INTER-COMP-CELL DOWNLINK INTERFERENCE 有权扩展协作多点细胞减少之间的CoMP小区DOWN范围问题
公开(公告)号：EP2430872B1
公开(公告)日：2016-07-06
申请号：EP10726583.7
申请日：2010-05-13
发明人： ZANGI, Kambiz , GUEY, Jiann-Ching , HUI, Dennis
IPC分类号： H04W72/12
CPC分类号： H04W72/1231 , H04B7/024 , H04L5/0066 , H04L5/0091
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公开(公告)号：EP1961249A1
公开(公告)日：2008-08-27
申请号：EP06813066.5
申请日：2006-11-01
发明人： ZANGI, Kambiz
IPC分类号： H04Q7/36
CPC分类号： H01Q3/34 , H01Q1/246 , H04B1/02 , H04B7/0617 , H04W52/42
摘要： Diversity arrays of antenna elements and phased arrays of antenna elements can be used to produce omni-directional transmissions. Communication signaling is produced based on a desired communication signal that is to be transmitted omni-directionally. In response to the communication signaling, the antenna elements cooperate to effect approximately omni-directional antenna transmission of the desired communication signal.
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公开(公告)号：EP2263415B1
公开(公告)日：2018-06-06
申请号：EP08735074.0
申请日：2008-04-07
发明人： SAHLIN, Henrik , LINDGREN, UIf , ZANGI, Kambiz
IPC分类号： H04W88/08
CPC分类号： H04L5/0037 , H04L5/0023 , H04W56/0005 , H04W88/085 , H04W92/10
摘要： Radio transmission in an Orthogonal Frequency Division Multiplex, OFDM, based cellular wireless radio transmission system (1), wherein radio access equipment (2) of the system connects to multiple geographically spread radio antennas (3, 4, 5) of a Distributed Antenna System, DAS, for transmitting to and receiving radio signals from user equipment (6, 7, 8, 9, 10). Transmit timings for radio transmission between the user equipment (6, 7, 8, 9, 10) and the antennas (3, 4, 5) of the DAS are established. The radio transmission is scheduled based on the established transmit timings.
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28.发明公开EFFICIENT UPLINK TRANSMISSION OF CHANNEL STATE INFORMATION 审中-公开EFFIZIENTE UPLINK-ÜBERTRAGUNGVON KANALSTATUSINFORMATIONEN
公开(公告)号：EP3152844A1
公开(公告)日：2017-04-12
申请号：EP15733534.0
申请日：2015-05-28
发明人： HUI, Dennis , CHENG, Jung-Fu , ZANGI, Kambiz , KRASNY, Leonid
摘要： A User Equipment, UE, (20) in a wireless communication network (10) includes a multiplicity of antennas (224), from which a subset of antennas is selected using a selection scheme synchronized to the network. A set of sub- carriers is selected from a plurality of sub-carriers using a selection scheme synchronized to the network. The UE receives a plurality of known reference symbols over the selected set of sub-carriers and through the selected subset of antennas. A frequency response for each selected sub-carrier is estimated over only the selected subset of antennas. The results are quantized and transmitted to the network on an uplink control channel.
摘要翻译： 无线通信网络（10）中的用户设备（UE）（20）包括多个天线（224），使用与该网络同步的选择方案从中选择天线子集。 使用与网络同步的选择方案，从多个子载波中选择一组子载波。 UE在所选择的一组子载波上并通过所选择的天线子集接收多个已知参考符号。 每个选择的子载波的频率响应仅在选定的天线子集上估计。 将结果量化并在上行链路控制信道上传送到网络。
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29.发明授权
公开(公告)号：EP2201813B1
公开(公告)日：2016-07-27
申请号：EP08794183.7
申请日：2008-09-09
发明人： ZANGI, Kambiz , GUEY, Jiann-Ching
CPC分类号： H04W74/0841 , H04W74/02
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公开(公告)号：EP2409414B1
公开(公告)日：2016-05-11
申请号：EP10716030.1
申请日：2010-03-15
发明人： ZANGI, Kambiz , HUI, Dennis , KRASNY, Leonid
CPC分类号： H04B7/024
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