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1.发明公开METHOD OF OFDMA TONE INTERFERENCE CANCELLATION 审中-公开方法SIGNALDEMDODULATION在混合OFDMA-CDMA SYSTEM USING载波间干扰的减少
公开(公告)号：EP1999924A2
公开(公告)日：2008-12-10
申请号：EP07752774.5
申请日：2007-03-09
CPC分类号： H04L5/0016 , H04B1/71072 , H04B2001/71077 , H04L5/0007 , H04L25/0228 , H04L25/03076 , H04L27/0008 , H04L27/2647
摘要： An improved method is provided for reducing inter-carrier interference in the CDMA subchannels of hybrid OFDMA-CDMA systems. The results of decoding OFDMA tones are used to at least partially cancel interference from CDMA tones. Then, the CDMA tones are decoded. In specific embodiments, control information is obtained by an intial step of decoding the CDMA tones. The control information is used in decoding the OFDMA tones. Then, the decoding of the OFDMA tones and the decoding of the CDMA tones are performed iteratively, such that at least one instance of OFDMA decoding is used to cancel interference from the CDMA tones, and at least one instance of CDMA decoding is used to obtain improved control information for decoding the OFDMA tones.
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2.发明公开TRANSMITTING DATA ON AN UPLINK ASSOCIATED WITH MULTIPLE MOBILE STATIONS IN A SPREAD SPECTRUM CELLULAR SYSTEM 审中-公开数据传输通过多移动台在扩频电话系统相关上行链路
公开(公告)号：EP1938497A1
公开(公告)日：2008-07-02
申请号：EP06836371.2
申请日：2006-10-16
IPC分类号： H04L5/02
摘要： The present invention provides a method and an apparatus for transmitting data on an uplink by selectively using multiple access modes to multiplex a transmission based on at least two different transmit formats. A method of wireless communication between at least one mobile station and a base station sector in a cellular system enables a first transmit format for a first transmission of the at least one mobile station on an uplink to the base station sector to multiplex first and second components of the first transmission based on a first access mode. The method further comprises enabling a second transmit format different than the first transmit format for a second transmission on the uplink from the at least one mobile station to multiplex first and second components of the second transmission based on a second access mode. In a spread spectrum cellular system, a base station sector may assign some transmission slots for a non-orthogonal transmission and other transmission slots for an orthogonal transmission to at least one mobile station, for example, in an uplink transmission. At the same time, for example, a base station sector may assign both modes to different mobile stations during the same time slot. By selectively using time and frequency or code division multiplexing, the mobile station may reduce interference, or alternatively, introduce minimal interference associated with multiple mobile stations transmitting data simultaneously at a base station sector. The reduced interference may enhance a re ate throu h ut of the u link.
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3.发明公开INDICATING A VARIABLE CONTROL CHANNEL STRUCTURE FOR TRANSMISSIONS IN A CELLULAR SYSTEM 有权变控制信道结构考虑转移的蜂窝系统显示
公开(公告)号：EP2033478A2
公开(公告)日：2009-03-11
申请号：EP07815082.8
申请日：2007-06-08
IPC分类号： H04Q7/38
CPC分类号： H04W72/0413
摘要： A method and an apparatus for wireless communication between a receiver and a transmitter in a cellular system are provided. The method comprises associating a channel of known structure at the transmitter with the transmission of a first control channel to indicate a variable structure of the first control channel to the receiver.
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4.发明公开TRANSMITTING DATA FROM A MOBILE STATION ON AN UPLINK IN A SPREAD SPECTRUM CELLULAR SYSTEM 审中-公开移动台的AT A UPLINK转接在扩频电话系统
公开(公告)号：EP1938466A1
公开(公告)日：2008-07-02
申请号：EP06826170.0
申请日：2006-10-16
IPC分类号： H04B1/707
摘要： The present invention provides a method and an apparatus for a wireless communication between at least one mobile station and a base station in a cellular system. The method comprises providing a desired spreading in time and frequency domains to transmit data using at least two carriers in a transmission on an uplink to the base station. Either the base station may provide an indication to the mobile station to enable the desired spreading, or alternatively, the mobile station may request it. A spread-spectrum cellular system may enable a mobile station to provide a two-dimensional spreading, which distributes spreading in time and frequency directions. A single two-dimensional spreading code or at least two one-dimensional spreading codes may provide a two-dimensional spreading. In this way, in an uplink transmission using a multi-carrier, code division multiple access (MC-CDMA) protocol, by varying the data portions being spread in time and frequency domains a joint spreading may result. The joint spreading may distribute spreading codes in the time and frequency directions to distribute the spreading in a transmission. When using the MC-CDMA protocol, a mobile station may select one or more spreading formats in an uplink transmission that may increase the success rate of the packet transmission. Moreover, use of a particular spreading format in a flexible manner may reduce the packet delay and suppress intra-cell interference.
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5.发明公开METHOD OF COORDINATED TRANSMISSION BY A PLURALITY OF ANTENNAS 有权VERFAHREN ZUR KOORDINIERTENÜBERTRAGUNGÜBERMEHRERE ANTENNEN
公开(公告)号：EP2179515A1
公开(公告)日：2010-04-28
申请号：EP08826451.0
申请日：2008-07-02
CPC分类号： H04B7/022 , H04B7/0671
摘要： The present invention provides a method of coordinating transmission by and reception by a plurality of antennas associated with a plurality of radio heads. The method includes determining, at a controller, at least one relative time delay associated with a plurality of backhaul links between the controller and the plurality of radio heads. The method also includes providing information indicative of a first signal over the plurality of backhaul links. The method further includes providing timing information over the plurality of backhaul links. The timing information is determined based on the relative time delay(s) such that the plurality of radio heads can use the provided timing information to coherently transmit the first signal using the plurality of antennas and a plurality of controllers to receive mobile unit transmitted information.
摘要翻译： 本发明提供一种协调由与多个无线电头相关联的多个天线进行发送和接收的方法。 该方法包括在控制器处确定与控制器和多个无线电头之间的多个回程链路相关联的至少一个相对时间延迟。 该方法还包括提供指示多个回程链路上的第一信号的信息。 该方法还包括在多个回程链路上提供定时信息。 基于相对时间延迟来确定定时信息，使得多个无线电头可以使用所提供的定时信息来使用多个天线相干发送第一信号，以及多个控制器来接收移动单元发送的信息。
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公开(公告)号：EP2030472A2
公开(公告)日：2009-03-04
申请号：EP07795374.3
申请日：2007-05-25
发明人： RUDRAPATNA, Ashok, N. , ZOU, Jialin
IPC分类号： H04Q7/38
摘要： The present invention provides a method of wireless communication involving at least one first carrier operating according to a first system type and at least one second carrier operating according to a second system type is provided. The method may include determining that a mobile unit is to be handed over between a first carrier operating according to the first system type and a second carrier operating according to the second system type based on a loading of at least one of the first and second carriers.
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7.发明公开
公开(公告)号：EP2047706A1
公开(公告)日：2009-04-15
申请号：EP07795373.5
申请日：2007-05-25
发明人： RUDRAPATNA, Ashok, N. , ZOU, Jialin
IPC分类号： H04Q7/38
摘要： The present invention provides a method of wireless communication. One embodiment of the method includes providing a message including information indicative of at least one carrier and at least one system type associated with each carrier. Another embodiment of the method includes receiving a message including information indicative of at least one carrier and at least one system type associated with each carrier.
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8.发明公开METHOD FOR HALF-AND FULL-DUPLEX SUBSCRIBER STATION OPERATION IN FREQUENCY DIVISION DUPLEX SYSTEMS 审中-公开程序对双面打印和半双工模式下的频双工系统用户站
公开(公告)号：EP2195958A2
公开(公告)日：2010-06-16
申请号：EP08834690.3
申请日：2008-09-24
CPC分类号： H04L5/16 , H04L5/0007 , H04L5/0028 , H04L5/0053 , H04L5/0064 , H04L5/0091 , H04L5/143 , H04L27/2605 , H04L27/2613 , H04L27/2656 , H04W28/06 , H04W72/048 , H04W88/06
摘要： The present invention provides a novel framing structure that can be used to smoothly evolve a Time Division Duplex (TDD) wireless communications technology to a Frequency Division Duplex wireless communications technology. A method for establishing the start time of an uplink frame that is offset in relation to a downlink frame by an allocation start time is provided. In addition, methods of allocating downlink and uplink resources for half-duplex and full frequency division duplex operation with adequate provisions for transmit-receive and receive-transmit time gaps are also provided.
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9.发明公开
公开(公告)号：EP2174437A1
公开(公告)日：2010-04-14
申请号：EP08794612.5
申请日：2008-07-21
IPC分类号： H04L1/00
CPC分类号： H04W28/06 , H04L5/0053 , H04W24/10 , H04W28/20 , H04W72/0453 , H04W72/12
摘要： The present invention provides a method of allocating bandwidth for transmission of channel quality information. The method includes reducing a bandwidth allocated to transmission of channel quality information over an air interface in a first direction in response to determining that traffic over the air interface in the first direction has increased.
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10.发明公开WIRELESS COMMUNICATION METHOD WITH AIR-INTERFACE ENCODER PACKETS CONFIGURED FOR MORE EFFICIENT USE OF NETWORK RESOURCES 有权空中接口-CODE PACKAGE无线通信方法，网络资源的更好的利用已配置
公开(公告)号：EP1985075A1
公开(公告)日：2008-10-29
申请号：EP07750066.8
申请日：2007-02-05
IPC分类号： H04L12/56
CPC分类号： H04L5/0094 , H04L5/0046 , H04L47/10 , H04W28/06 , H04W72/00
摘要： A method is provided for communicating data belonging to at least one application flow (AF). In one aspect, the method involves mapping the data to payload bits of two or more encoder packets (EPs) such that each said EP carries a payload dedicated to only one AF, and transmitting the EPs concurrently. In a second aspect, the above said mapping is inverted at a receiver.
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