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1. 发明申请

WO2005109808A1 DETECTION OF MODULATION TYPE 审中-公开
标题翻译：调制型检测
公开(公告)号：WO2005109808A1
公开(公告)日：2005-11-17
申请号：PCT/EP2005/004805
申请日：2005-05-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , CHEN, Dayong , HUI, Dennis
发明人： CHEN, Dayong , HUI, Dennis
IPC分类号： H04L27/00
CPC分类号： H04L27/0012
摘要： It is possible to distinguish between GMSK and 8PSK signals, without the use of an explicit indication embedded within the signal. Correlations between I and Q channels are detected and the modulation type is determined therefrom.
摘要翻译：可以区分GMSK和8PSK信号，而不使用嵌入在信号内的显式指示。检测I和Q通道之间的相关性，并从中确定调制类型。

2. 发明申请

WO2010122510A1 METHOD AND APPARATUS FOR GENERATING SOFT BIT VALUES IN REDUCED-STATE EQUALIZERS 审中-公开
标题翻译：在减少国家平均数中产生软位值的方法和装置
公开(公告)号：WO2010122510A1
公开(公告)日：2010-10-28
申请号：PCT/IB2010/051757
申请日：2010-04-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CHEN, Dayong
发明人： CHEN, Dayong
IPC分类号： H03M13/37 , H04L25/03
CPC分类号： H04L25/03203 , H03M13/4146
摘要： A demodulator is provided that functions as a reduced-state equalizer and produces reliable soft bit values. According to an embodiment, soft bit values are generated for a sequence of transmitted symbols using a demodulator by updating an M-state trellis managed by the demodulator response e to a transition from symbol time n-1 to symbol time n, where M is a function of the number of bits per symbol in the sequence of transmitted symbols. Survivor metrics associated with the M states of the trellis are saved each symbol time so that the demodulator can calculate soft bit values with regard to transitions from symbol time n + D-1 to symbol time n+ D. The survivor metrics indicate the probability that each respective state represents the transmitted symbol associated with symbol time n+D-1. The trellis is traced back through to calculate soft bit values for a symbol detected at symbol time n-D based on survivor metrics saved for the M states at symbol time n-D.
摘要翻译：提供了一种解调器，用作减小均衡器并产生可靠的软比特值。根据一个实施例，使用解调器通过将由解调器响应e管理的M状态网格更新为从符号时间n-1到符号时间n的转变来为发送符号的序列生成软比特值，其中M是在发送符号的序列中每个符号的位数的函数。与网格的M个状态相关联的幸存者度量在每个符号时间被保存，使得解调器可以计算关于从符号时间n + D-1到符号时间n + D的转换的软比特值。幸存者度量指示每个各状态表示与符号时间n + D-1相关联的发送符号。网格被追溯到通过基于在符号时间n-D处为M个状态保存的幸存度量来计算在符号时间n-D处检测到的符号的软比特值。

3. 发明申请

WO2006037645A1 PUNCTURING/DEPUNCTURING USING COMPRESSED DIFFERENTIAL PUNCTURING PATTERN 审中-公开
标题翻译：使用压缩差分扫描图案进行打孔/去污
公开(公告)号：WO2006037645A1
公开(公告)日：2006-04-13
申请号：PCT/EP2005/010797
申请日：2005-10-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , CHEN, Dayong
发明人： CHEN, Dayong
IPC分类号： H03M13/00 , H04L1/00 , H03M7/46
CPC分类号： H04L1/0052 , H03M7/46 , H03M13/356 , H03M13/6362 , H03M13/6505 , H04L1/0043 , H04L1/0069
摘要： Differential puncture patterns are used for puncturing and de-puncturing codewords transmitted over a communication channel. The puncture pattern comprises a series of successive differential indices or offsets corresponding to differences between successive bit indices in an absolute bit index sequence. The differential puncture patterns are used at the transmitter to select bits of a codeword for transmission over the communication channel. At the receiver, the differential puncture pattern is used to determine the bit positions of received bits in a de-punctured codeword.
摘要翻译：差分穿孔模式用于对通过通信信道发送的码字进行删截和解除删截。穿刺图案包括与绝对位索引序列中的连续位索引之间的差异相对应的一系列连续的差分索引或偏移量。在发射机处使用差分穿孔模式来选择用于在通信信道上传输的码字的比特。在接收机处，使用差分穿孔模式来确定去穿孔码字中的接收比特的比特位置。

4. 发明申请

WO2011073915A2 HYBRID CORRELATION AND LEAST SQUARES CHANNEL ESTIMATION 审中-公开
标题翻译：混合相关和最小二乘通道估计
公开(公告)号：WO2011073915A2
公开(公告)日：2011-06-23
申请号：PCT/IB2010/055822
申请日：2010-12-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CHEN, Dayong
发明人： CHEN, Dayong
IPC分类号： H04L25/02
CPC分类号： H04L25/0212 , H04L25/0224 , H04L25/025 , H04L25/03299 , H04L25/03993
摘要： A hybrid channel estimator for a wireless communication system receiver includes both correlation based and least squares based channel estimators. The correlation estimator is used when signal quality is low or noise is colored, The least squares estimator is used when signal quality is high or noise is white, Λn interference suppression filter improves signal quality by suppressing interference in a received signal. Generally, correlation channel estimation is performed initially, when signal quality is low and noise is colored, and interference suppression filtering is performed to increase signal quality by removing certain portion of interference and whitening the overall impairment spectrum. These may be done iteratively. When the signal quality improves, least squares channel estimation is performed, which may also be iterative. The training sequence and noise may be whitened prior to performing least squares channel estimation, which is the final operation before channel estimates are forwarded to a demodulator.
摘要翻译：用于无线通信系统接收机的混合信道估计器包括基于相关和基于最小二乘的信道估计器。当信号质量低或噪声被着色时，使用相关估计器。当信号质量高或噪声为白色时，使用最小二乘估计器，≈干扰抑制滤波器通过抑制接收信号中的干扰来提高信号质量。一般来说，当信号质量低，噪声有色时，首先执行相关信道估计，并且通过去除某些部分干扰并使整个损伤谱变白来执行干扰抑制滤波以提高信号质量。这些可以迭代地进行。当信号质量提高时，执行最小二乘方信道估计，其也可以是迭代的。在执行最小二乘信道估计之前，训练序列和噪声可能变白，这是在信道估计被转发到解调器之前的最终操作。

5. 发明申请

WO2010125459A2 INTEGRATED POWER CONTROL AND LINK ADAPTATION 审中-公开
标题翻译：集成功率控制和链路适配
公开(公告)号：WO2010125459A2
公开(公告)日：2010-11-04
申请号：PCT/IB2010/001000
申请日：2010-04-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CHEN, Dayong
发明人： CHEN, Dayong
IPC分类号： H04L1/00
CPC分类号： H04L1/0002 , H04L1/0009 , H04L1/0017 , H04L1/0025 , H04L1/20 , H04L27/2089 , H04W24/10 , H04W52/143 , H04W52/346 , H04W88/08
摘要： A method and apparatus in a base station for jointly controlling sub¬ channel transmission power and assigned codec modes for a first and second mobile station utilizing Voice services over Adaptive Multi-user channel on One Slot (VAMOS). The base station receives signal quality information reports from the mobile stations every 480 ms using the Slow Associated Control Channel (SACCH), and receives codec mode requests from the mobile stations every 40 ms using Adaptive Multi-Rate (AMR) in-band signaling. The base station associates the requested codec modes with estimated levels of speech quality currently being experienced by the first and second mobile stations. The base station then allocates sub-channel transmission power and assigns codec modes to the first and second mobile stations based on the estimated levels of speech quality associated with the requested codec modes and the signal quality reports.
摘要翻译：一种用于在一个时隙（VAMOS）上通过自适应多用户信道利用语音服务的第一和第二移动台共同控制子信道传输功率和分配的编解码器模式的基站中的方法和装置。基站使用慢关联控制信道（SACCH）每480ms从移动台接收信号质量信息报告，并且使用自适应多速率（AMR）带内信令从40ms接收来自移动台的编解码器模式请求。基站将请求的编解码方式与当前由第一和第二移动台经历的语音质量的估计级别相关联。基站然后基于与所请求的编解码器模式和信号质量报告相关联的所估计的语音质量水平来分配子信道传输功率并将编解码器模式分配给第一和第二移动站。

6. 发明申请

WO2006063843A1 MEMORY EFFICIENT INTERLEAVING / DE-INTERLEAVING UTILISING THE PERIODICITY OF THE MAPPING FUNCTION 审中-公开
标题翻译：使用映射函数的周期性的记忆高效交互/去交换
公开(公告)号：WO2006063843A1
公开(公告)日：2006-06-22
申请号：PCT/EP2005/013564
申请日：2005-12-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CHEN, Dayong
发明人： CHEN, Dayong
IPC分类号： H03M13/27
CPC分类号： H03M13/6502 , H03M13/2703 , H03M13/2767
摘要： A method of mapping input bit positions in an input sequence to output bit positions in an output sequence uses compressed mapping sequences stored in memory derived from a predetermined mapping function. The mapping function is decompressed into periodic component functions that are used to generate the compressed mapping sequences. Each compressed mapping sequence comprises a plurality of partial mapping values that represent one period of a corresponding component function or group of component functions. Partial mapping values are selected from each compressed mapping sequence based on a bit index of the current input bit and summed or otherwise combined to get an output index.
摘要翻译：将输入序列中的输入位位置映射到输出序列中的输出位位置的方法使用从预定映射函数导出的存储在存储器中的压缩映射序列。映射函数被解压缩为用于生成压缩映射序列的周期性组件函数。每个压缩映射序列包括表示对应的组件功能或组件功能组的一个周期的多个部分映射值。基于当前输入位的位索引从每个压缩映射序列中选择部分映射值，并将其相加或组合以获得输出索引。

7. 发明公开

EP2425571A2 INTEGRATED POWER CONTROL AND LINK ADAPTATION 审中-公开
标题翻译：集成功率控制和距离调整
公开(公告)号：EP2425571A2
公开(公告)日：2012-03-07
申请号：EP10723300.9
申请日：2010-04-30
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： CHEN, Dayong
IPC分类号： H04L1/00
CPC分类号： H04L1/0002 , H04L1/0009 , H04L1/0017 , H04L1/0025 , H04L1/20 , H04L27/2089 , H04W24/10 , H04W52/143 , H04W52/346 , H04W88/08
摘要： A method and apparatus in a base station for jointly controlling sub¬ channel transmission power and assigned codec modes for a first and second mobile station utilizing Voice services over Adaptive Multi-user channel on One Slot (VAMOS). The base station receives signal quality information reports from the mobile stations every 480 ms using the Slow Associated Control Channel (SACCH), and receives codec mode requests from the mobile stations every 40 ms using Adaptive Multi-Rate (AMR) in-band signaling. The base station associates the requested codec modes with estimated levels of speech quality currently being experienced by the first and second mobile stations. The base station then allocates sub-channel transmission power and assigns codec modes to the first and second mobile stations based on the estimated levels of speech quality associated with the requested codec modes and the signal quality reports.

8. 发明申请

WO2008140388A1 NETWORK CODING USING SOFT VALUES IN A WIRELESSS COMMUNICATION NETWORK 审中-公开
标题翻译：网络编码在无线通信网络中使用软值
公开(公告)号：WO2008140388A1
公开(公告)日：2008-11-20
申请号：PCT/SE2008/050378
申请日：2008-04-02
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HAFEEZ, Abdulrauf , CHEN, Dayong , HUI, Dennis
IPC分类号： H04L1/00
CPC分类号： H04L1/0045 , H03M13/3761 , H04B7/15521 , H04L1/0054 , H04L1/1845 , H04L2001/0096
摘要： According to a method and apparatus taught herein, a network node includes a receiver circuit that determines soft values for received packets corresponding to the information bit groups associated with network coding operations, where the soft values are determined for each information bit group based on joint probabilities of the information bits within the information bit group. For example, first soft values are determined for the information bit groups in a first (received) constituent packet and second soft values are likewise determined for the information bit groups in a network-coded (received) packet that depends on the first constituent packet and a second constituent packet. Third soft values are generated for the information bit groups of the second constituent packet based on jointly evaluating the first and second soft values.
摘要翻译：根据本文教导的方法和装置，网络节点包括接收机电路，其确定与与网络编码操作相关联的信息比特组对应的接收分组的软值，其中基于联合概率为每个信息比特组确定软值信息位组内的信息位。例如，为第一（接收）构成分组中的信息比特组确定第一软值，并且同样地确定依赖于第一组成分组的网络编码（接收）分组中的信息比特组的第二软值，第二组成分组。基于联合评估第一和第二软值，为第二组成分组的信息比特组生成第三软值。

9. 发明申请

WO2008140387A2 METHOD AND APPARATUS FOR COMBINED PACKET RETRANSMISSION AND SOFT DECODING OF COMBINED PACKETS IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：在无线通信网络中组合的分组重组和软解码的组合方法和装置
公开(公告)号：WO2008140387A2
公开(公告)日：2008-11-20
申请号：PCT/SE2008/050377
申请日：2008-04-02
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HAFEEZ, Abdulrauf , CHEN, Dayong , HUI, Dennis
IPC分类号： H04L1/18
CPC分类号： H04L1/1845 , H04L1/1812
摘要： In a wireless communication network using point-to-point or point-to-multipoint communications, this disclosure teaches the use of combined packets for retransmission and corresponding soft value processing at a receiver, wherein combined packets are formed as the logical combination of two or more previously transmitted packets and allow the receiver to use a single combined packet to correct one or more failed packets. For example, with the combined packet retransmission and corresponding soft value receiver processing as taught herein, a given receiver can use a given combined packet to correct bit errors in all (failed) packets comprising the combined packet as long as the bit errors in a failed packet do not overlap (or align) with bit errors in the other failed packets comprising the combined packet.
摘要翻译：在使用点对点或点对多点通信的无线通信网络中，本公开教导了在接收机处使用组合分组进行重传和对应的软值处理，其中组合分组形成为两个或更先前传输的分组，并允许接收机使用单个组合分组来校正一个或多个故障分组。例如，使用如本文所教导的组合分组重传和对应的软值接收机处理，给定的接收机可以使用给定的组合分组来校正包括组合分组的所有（失败的）分组中的比特错误，只要失败的比特错误分组不与包括组合分组的其他故障分组中的比特错误重叠（或对齐）。

10. 发明申请

WO2005025120A1 MOBILE-UNIT-ASSISTED MODULATION MANAGEMENT 审中-公开
标题翻译：移动协助调整管理
公开(公告)号：WO2005025120A1
公开(公告)日：2005-03-17
申请号：PCT/SE2004/001190
申请日：2004-08-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , AXNÄS, Johan , CRAIG, Stephen , CHEN, Dayong , ERIKSSON, Stefan
发明人： AXNÄS, Johan , CRAIG, Stephen , CHEN, Dayong , ERIKSSON, Stefan
IPC分类号： H04L1/00
CPC分类号： H04L1/0003 , H04L1/203
摘要： The invention discloses a mobile-unit-assisted modulation scheme management, in which a mobile unit (100) performs signal quality measurements on a communications link (410), over which data modulated with a first modulation scheme is communicated. The mobile unit (100) determines a first link quality measure for this first modulation. Furthermore, the mobile unit (100) estimates second quality measure(s) for currently non-employed modulation scheme(s) based on this first quality measure. Selection information is then generated based on this first quality measure and the second quality estimate(s). This quality measure estimation is performed based on the capabilities and the particular modulation scheme versions of the mobile unit (100).
摘要翻译：本发明公开了一种移动单元辅助调制方案管理，其中移动单元（100）在通信链路（410）上执行信号质量测量，通过该通信链路传送以第一调制方案调制的数据。移动单元（100）确定用于该第一调制的第一链路质量度量。此外，移动单元（100）基于该第一质量度量来估计当前非采用的调制方案的第二质量度量。然后基于该第一质量测量和第二质量估计生成选择信息。基于移动单元（100）的能力和特定调制方案版本执行该质量测量估计。

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