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21. 发明申请

WO2008150225A1 METHOD AND APPARATUS FOR VOCODER RATE CONTROL BY A MOBILE TERMINAL 审中-公开
标题翻译：移动终端控制速率的方法和装置
公开(公告)号：WO2008150225A1
公开(公告)日：2008-12-11
申请号：PCT/SE2008/050652
申请日：2008-06-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BALACHANDRAN, Kumar , RAMESH, Rajaram , KOORAPATY, Havish
IPC分类号： H04L12/56 , G10L19/14
CPC分类号： H04W28/02 , G10L19/24 , H04L47/10 , H04L47/11 , H04L47/12 , H04L47/14 , H04L47/25 , H04L47/38
摘要： A mobile terminal (108) in a wireless communication network (100) detects congestion and lowers its vocoder source rate in response, to help alleviate the congestion. The mobile terminal (108) may detect the congestion in a variety of ways. The mobile terminal (108) may monitor bandwidth allocation in the network (100), such as by inspecting the UL-MAP and DL-MAP of an IEEE 802.16 OFDM Physical Layer Frame header, for symmetric allocations. Congestion may be defined by the number of symmetric allocations exceeding a threshold. The congestion threshold may be programmed into the mobile terminal (108), or may be transmitted by the network (100). The mobile terminal (108) may infer congestion by being repeatedly granted less bandwidth than requested. The network (100) may explicitly indicate congestion, in a MAC message or by setting a congestion flag in one or more voice data frames. The congestion flag may comprise a reserved encoding of the AMR header Frame Type field.
摘要翻译：无线通信网络（100）中的移动终端（108）检测拥塞并响应其降低其声码器源速率，以帮助减轻拥塞。移动终端（108）可以以各种方式检测拥塞。移动终端（108）可以例如通过检查用于对称分配的IEEE 802.16 OFDM物理层帧报头的UL-MAP和DL-MAP来监视网络（100）中的带宽分配。拥塞可以由超过阈值的对称分配的数量来定义。拥塞阈值可以被编程到移动终端（108）中，或者可以由网络（100）发送。移动终端（108）可以通过重复地获得比请求更少的带宽来推断拥塞。网络（100）可以在MAC消息中明确指示拥塞，或者通过在一个或多个语音数据帧中设置拥塞标志。拥塞标志可以包括AMR头帧类型字段的保留编码。

22. 发明申请

WO2008150224A1 EFFICIENT, SECURE DIGITAL WIRELESS VOICE TELEPHONY VIA SELECTIVE ENCRYPTION 审中-公开
标题翻译：高效，安全的数字无线语音电话通过选择性加密
公开(公告)号：WO2008150224A1
公开(公告)日：2008-12-11
申请号：PCT/SE2008/050651
申请日：2008-06-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BALACHANDRAN, Kumar , RAMESH, Rajaram , KOORAPATY, Havish
IPC分类号： H04L9/18 , G10L19/00 , H04L12/56
CPC分类号： H04W12/02 , H04L65/607 , H04W84/00
摘要： Secure, digital, packet-switched, voice telephony calls are wirelessly transmitted in an efficient manner that reduces air interface bandwidth consumption by encrypting only vocoder data frames containing encoded speech, and not encrypting vocoder data frames that do not contain speech, such as those containing silence parameters. The collective reduced bandwidth consumption across a large number of voice telephony calls may allow for the admission of one or more new calls during times of voice telephony congestion. Not encryptin the silence parameters does not compromise call privacy or security, since the silence data frames do not carry any speech. The classification of encoded data frames as containing speech or not may be performed in a variety of ways.
摘要翻译：安全，数字，分组交换，语音电话呼叫以有效的方式无线传输，通过仅加密包含编码语音的声码器数据帧，而不加密不包含语音的声码器数据帧，减少空中接口带宽消耗，例如包含沉默参数。在大量语音电话呼叫中的集体降低的带宽消耗可以允许在语音电话拥塞期间允许一个或多个新的呼叫。沉默参数不加密不会影响通话隐私或安全性，因为静音数据帧不携带任何语音。可以以各种方式来执行编码数据帧作为包含语音的分类。

23. 发明申请

WO2008150223A3 METHOD AND APPARATUS FOR CHANNEL ESTIMATION IN A TRANSMIT DIVERSITY ENVIRONMENT 审中-公开
公开(公告)号：WO2008150223A3
公开(公告)日：2008-12-11
申请号：PCT/SE2008/050650
申请日：2008-06-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： RAMESH, Rajaram , BALACHANDRAN, Kumar , KOORAPATY, Havish
IPC分类号： H04B7/06
摘要： A method of channel estimation for a signal having a first portion transmitted using a transmit delay diversity scheme and a second portion transmitted using another multi-antenna transmission scheme includes determining a composite channel estimate from the transmit delay diversity portion of the signal. The method continues with segregating the composite channel estimate into delay groups corresponding to time offsets of the transmit delay diversity scheme for determination of first channel estimates for each subset of transmit antennas (12). Second channel estimates are determined for each subset of transmit antennas (12) as a function of pilot symbols received in the second portion of the signal and corresponding ones of the first channel estimates. Thus, the first channel estimates are used to improve estimation of the second channel estimates. The method and variations of it may be implemented by configuring one or more processing circuits (40, 42, 44) within a receiver circuit (24).

24. 发明申请

WO2008153475A1 DIVERSITY TRANSMISSION USING A SINGLE POWER AMPLIFIER 审中-公开
标题翻译：使用单功率放大器进行多样化传输
公开(公告)号：WO2008153475A1
公开(公告)日：2008-12-18
申请号：PCT/SE2008/050333
申请日：2008-03-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： CHENG, Jung-Fu , KRASNY, Leonid , RAMESH, Rajaram
IPC分类号： H04B7/06
CPC分类号： H04B7/0682 , H04B7/0404 , H04B7/0634
摘要： Diversity radio transmission is accomplished with excellent performance using multiple antennas receiving a transmission signal from a single power amplifier. A data signal to be transmitted is provided to a first antenna, and a phase-shifted version of the data signal is applied a second antenna. The relative phase shift between the data signal transmitted over the two transmit antennas ensures the two antenna signals can be constructively combined at the receiver. In one non-limiting example embodiment, the relative phase shift is determined by processing pilot signals sent along with the data signal and which are transmitted with predetermined phase shifts.
摘要翻译：使用接收来自单个功率放大器的传输信号的多个天线，以卓越的性能来实现分集无线电传输。要发送的数据信号被提供给第一天线，并且数据信号的相移版本被应用于第二天线。通过两个发射天线发射的数据信号之间的相对相移确保了两个天线信号可以在接收机上被建设性地组合。在一个非限制性示例实施例中，相对相移通过处理与数据信号一起发送并且以预定相移发送的导频信号来确定。

25. 发明申请

WO2008150229A1 METHOD AND APPARATUS FOR VOCODER RATE CONTROL IN A WIRELESS NETWORK 审中-公开
标题翻译：无线网络中VOCODER速率控制的方法与装置
公开(公告)号：WO2008150229A1
公开(公告)日：2008-12-11
申请号：PCT/SE2008/050656
申请日：2008-06-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BALACHANDRAN, Kumar , RAMESH, Rajaram , KOORAPATY, Havish
IPC分类号： G10L19/00 , H04L12/26 , H04L12/56
CPC分类号： H04W28/02 , H04L1/0014 , H04L1/0015 , H04L47/10 , H04L47/11 , H04L47/12 , H04L47/14 , H04L47/2416 , H04L47/263 , H04L47/38 , H04W88/181
摘要： A packet filter function (220) in a wireless communication network (200) monitors congestion and communicates a congestion indication to one or more vocoders (210, 214). In one embodiment, the congestion indication comprises a vocoder source rate calculated by the packet filter function (220) in response to the congestion. The reduced vocoder source rate frees system resources that can be allocated to new users to alleviate the congestion. The vocoder source rate may be communicated to the vocoder(s) (210, 214) in a variety of ways.
摘要翻译：无线通信网络（200）中的分组过滤功能（220）监测拥塞并将拥塞指示传送到一个或多个声码器（210,214）。在一个实施例中，拥塞指示包括响应于拥塞由分组过滤功能（220）计算的声码器源速率。降低的声码器源速率释放了可以分配给新用户的系统资源，以减轻拥塞。声码器源速率可以以各种方式传送到声码器（210,214）。

26. 发明申请

WO2013034677A1 PROCESS FOR PREPARING ETHYLENE AND PROPYLENE 审中-公开
标题翻译：制备乙烯和丙烯的方法
公开(公告)号：WO2013034677A1
公开(公告)日：2013-03-14
申请号：PCT/EP2012/067492
申请日：2012-09-07
申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , CHEWTER, Leslie, Andrew , RAMESH, Rajaram , VAN WESTRENEN, Jeroen
发明人： CHEWTER, Leslie, Andrew , RAMESH, Rajaram , VAN WESTRENEN, Jeroen
IPC分类号： C07C1/20 , C07C4/06 , C07C11/04 , C07C11/06
CPC分类号： C07C1/22 , C07C1/20 , C07C4/06 , C07C29/48 , C07C2529/42 , C07C2529/70 , C07C2529/83 , C07C2529/85 , C07D301/03 , Y02P30/42 , C07C11/04 , C07C11/06
摘要： The present invention provides aprocess for preparing ethylene and/or propylene, comprising the steps of a)contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000 °C and retrieving an olefinic product stream comprising: - ethylene and/or propylene, and - a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins; b) subjecting at least part of the C4+ hydrocarbon fraction to an etherification process with methanol and/or ethano lwherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream; c) separating at least part of the etherification product stream into at least an ether-enriched stream and an iso- olefin-depleted C4+ hydrocarbon stream; d )withdrawing part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the paraffinic C4+ hydrocarbons; e) recycling another part of the iso-olefin-depleted C4+ hydrocarbon stream to step (a); f) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000 °C.
摘要翻译：本发明提供了制备乙烯和/或丙烯的方法，包括以下步骤：a）在350-1000℃的温度范围内使包含C4 +烯烃的物流与含沸石的催化剂接触并回收烯烃产物流包括： - 乙烯和/或丙烯，以及 - C4 +烃馏分，其包含链烷烃，正烯烃和异烯烃; b）使用甲醇和/或乙醇1将至少部分的C4 +烃馏分进行醚化过程，其中至少部分异烯烃用甲醇和/或乙醇转化成叔烷基醚，并回收醚化产物流; c）将至少部分醚化产物流分离成至少一种富醚流和一种异烯烃贫化的C4 +烃流; d）从该方法中取出一部分异烯烃贫化的C4 +烃物流以清除部分链烷烃C4 +烃; e）将另一部分异烯烃贫化的C4 +烃流再循环到步骤（a）; f）通过使至少部分富含乙醚的料流与含分子筛的催化剂在至少一部分乙醚和/或丙烯的温度范围内接触，将至少部分乙醚富集料流中的叔烷基醚转化为 350〜1000℃。

27. 发明申请

WO2013034708A1 PROCESS FOR PREPARING ETHYLENE AND PROPYLENE FROM A FEEDSTOCK COMPRISING A TERT-ALKYL ETHER 审中-公开
标题翻译：从含有叔丁基醚的原料制备乙烯和丙烯的方法
公开(公告)号：WO2013034708A1
公开(公告)日：2013-03-14
申请号：PCT/EP2012/067538
申请日：2012-09-07
申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , CHEWTER, Leslie Andrew , RAMESH, Rajaram , VAN WESTRENEN, Jeroen
发明人： CHEWTER, Leslie Andrew , RAMESH, Rajaram , VAN WESTRENEN, Jeroen
IPC分类号： C07C1/20 , C07C11/04 , C07C11/06
CPC分类号： C07C1/22 , C07C1/20 , C07C29/04 , C07C2521/04 , C07C2521/06 , C07C2521/08 , C07C2521/12 , C07C2521/16 , C07C2529/40 , C07C2529/70 , C07C2529/83 , C07C2529/84 , C07C2529/85 , C07D301/03 , Y02P30/42 , C07C11/04 , C07C11/06
摘要： The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of: a)providing an oxygenate-comprising feedstock; b)contacting the oxygenate-comprising feedstock with a molecular sieve-comprising catalyst at a temperature in the range of from 450 to 700°C and converting at least part of the oxygenateinto an olefinic product comprising ethylene and/or propylene;and c)retrieving the olefinic product, wherein the oxygenate-comprising feedstock comprises in the range of from 1 to 97wt% of at least one tert-alkyl ether selected from the group MTBE, ETBE, TAME and TAEE, based on theweight of the oxygenates in the oxygenate-comprising feedstock,and further comprises methanol and/or DME.
摘要翻译：本发明提供一种制备乙烯和/或丙烯的方法，包括以下步骤：a）提供含氧化合物的原料; b）使含氧化合物的原料与含分子筛的催化剂在450-700℃的温度下接触，并将至少部分含氧化合物转化为包含乙烯和/或丙烯的烯烃产物;以及c）回收所述烯烃产物，其中所述含氧化合物原料包含1至97重量％的至少一种选自MTBE，ETBE，TAME和TAEE的叔烷基醚，基于含氧化合物中的含氧化合物的重量，包括原料，并且还包含甲醇和/或DME。

28. 发明申请

WO2011057978A2 PROCESS FOR THE PREPARATION OF A LOWER OLEFIN PRODUCT 审中-公开
标题翻译：制备低烯烃产品的方法
公开(公告)号：WO2011057978A2
公开(公告)日：2011-05-19
申请号：PCT/EP2010/066991
申请日：2010-11-08
申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , CHEWTER, Leslie Andrew , VAN WESTRENEN, Jeroen , RAMESH, Rajaram , WINTER, Ferry
发明人： CHEWTER, Leslie Andrew , VAN WESTRENEN, Jeroen , RAMESH, Rajaram , WINTER, Ferry
IPC分类号： C10G3/00 , C10G9/00 , C10G57/00 , C01B3/22 , C01B3/32 , C07C1/20 , C07C5/32 , C07C29/15
CPC分类号： C10G57/00 , C01B3/22 , C01B3/323 , C01B2203/0233 , C01B2203/061 , C01B2203/065 , C01B2203/1223 , C01B2203/1247 , C07C1/20 , C10G3/49 , C10G9/00 , C10G2300/4081 , C10G2400/20 , Y02P30/20 , Y02P30/42 , C07C11/04 , C07C11/06
摘要： Process for the preparation of for the preparation of an olefin product comprising ethylene and/or propylene, which process comprises the steps of a) cracking a paraffin feedstock comprising C2 - C5 paraffins under cracking conditions in a cracking zone to obtain a cracker effluent comprising olefins; b) converting an oxygenate feedstock in an oxygenate-to-olefins conversion system, comprising a reaction zone in which an oxygenate feedstock is contacted with an oxygenate conversion catalyst under oxygenate conversion conditions, to obtain a conversion effluent comprising ethylene and/or propylene; c) combining at least part of the cracker effluent and at least part of the conversion effluent to obtain a combined effluent, and separating an olefin product stream comprising ethylene and/or propylene from the combined effluent, wherein the paraffin feedstock comprises ethane, and wherein the cracking conditions in the cracking zone are selected such that 60 wt% or less of ethane in the paraffin feedstock are converted during a single pass through the cracking zone.
摘要翻译：用于制备包含乙烯和/或丙烯的烯烃产物的方法，该方法包括以下步骤：a）在裂化区裂化条件下裂化包含C2-C5链烷烃的链烷烃原料以获得包含烯烃的裂化器流出物 ; b）转化含氧化合物至烯烃转化体系中的含氧化合物原料，其包含其中含氧化合物原料在含氧化合物转化条件下与含氧化合物转化催化剂接触的反应区，以获得包含乙烯和/或丙烯的转化流出物; c）将至少部分的裂化器流出物和至少部分转化流出物混合以获得组合的流出物，以及从合并的流出物中分离包含乙烯和/或丙烯的烯烃产物流，其中所述链烷烃原料包括乙烷，并且其中选择裂化区中的裂化条件使得在单次通过裂化区期间，石蜡原料中的60重量％以下的乙烷被转化。

29. 发明申请

WO2005125076A1 BENIGN INTERFERENCE SUPPRESSION FOR RECEIVED SIGNAL QUALITY ESTIMATION 审中-公开
标题翻译：接收信号质量估计的BENIGN干扰抑制
公开(公告)号：WO2005125076A1
公开(公告)日：2005-12-29
申请号：PCT/EP2005/006269
申请日：2005-06-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BOTTOMLEY, Gregory , RAMESH, Rajaram , WANG, Yi-Pin, Eric
发明人： BOTTOMLEY, Gregory , RAMESH, Rajaram , WANG, Yi-Pin, Eric
IPC分类号： H04L1/20
CPC分类号： H04L1/20 , H04B2201/709727 , H04L1/0003 , H04L1/0026 , H04L1/206
摘要： A receiver circuit suppre ses effects of "benign" impairment from the calculation of received signal quality estimates, such that the estimate depends primarily on the effects of non-benign impairment. For example, a received signal may be subject to same-cell and other cell interference plus noise, which is generally modeled using a Gaussian distribution, and also may be due to certain forms of self-interference, such as quadrature phase interference arising from imperfect de-rotation of the pilot samples used to generate channel estimates for the received signal. Such interference generally takes on a distribution defined by the pilot signal modulation, e.g., a binomial distribution for binary phase shift keying modulation. Interference arising from such sources is relatively "benign" as compared to Gaussian interference and thus should be suppressed or otherwise discounted in signal quality calculations. Suppression may be based on subtracting benign impairment correlation estimates from total impairment correlation estimates, or on filtering the benign impairment in channel estimation.
摘要翻译：接收机电路可以从接收到的信号质量估计的计算中抑制“良性”损伤的影响，使得估计主要取决于非良性损伤的影响。例如，接收的信号可能经受相同小区和其他小区干扰加噪声，其通常使用高斯分布来建模，并且还可能是由于某些形式的自干扰，例如由不完美产生的正交相位干扰用于产生用于接收信号的信道估计的导频样本的去旋转。这种干扰通常采用由导频信号调制定义的分布，例如二进制相移键控调制的二项分布。与高斯干扰相比，从这些源产生的干扰相对“良性”，因此在信号质量计算中应被抑制或以其他方式折扣。抑制可以基于从总损伤相关性估计中减去良性损伤相关估计，或者在过滤信道估计中的良性损伤。

30. 发明申请

WO2007003979A1 METHOD AND ARRANGEMENT FOR ESTIMATING DC OFFSET 审中-公开
标题翻译：估计直流偏差的方法和布置
公开(公告)号：WO2007003979A1
公开(公告)日：2007-01-11
申请号：PCT/IB2005/001880
申请日：2005-07-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , HUI, Dennis , RAMESH, Rajaram
发明人： HUI, Dennis , RAMESH, Rajaram
IPC分类号： H04L25/06
CPC分类号： H04L25/063 , H04L25/061
摘要： A method and arrangement for estimating a DC offset for a signal received in a radio receiver. The received signal includes a digitally modulated signal component, a DC offset component, and a noise component. When the signal is of a known type, such as a Gaussian Minimum Shift Keying (GMSK)-modulated signal with constant amplitude in a GSM/EDGE cellular radio system, the method exploits the known characteristics of the statistical distribution for the known type of signal to obtain a better estimate of the DC offset. The statistical distribution of the received digitally modulated signal component is first analyzed. That statistical distribution is then compared to the known statistical distribution for the known type of signal to identify differences. The differences are then used to estimate the DC offset. Additional iterations may be performed to further improve the DC estimate.
摘要翻译：一种用于估计在无线电接收机中接收的信号的DC偏移的方法和装置。接收到的信号包括数字调制信号分量，DC偏移分量和噪声分量。当信号是GSM / EDGE蜂窝无线电系统中具有恒定振幅的已知类型的高斯最小移频键控（GMSK）调制信号时，该方法利用了已知类型信号的已知统计分布特征以获得对DC偏移的更好的估计。首先分析接收到的数字调制信号分量的统计分布。然后将统计分布与已知的信号类型的统计分布进行比较以识别差异。然后使用差异来估计DC偏移。可以执行另外的迭代以进一步改善DC估计。

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