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1. 发明公开

EP4354943A1 SIGNAL STATE DISPLAY METHOD, TERMINAL AND READABLE STORAGE MEDIUM 审中-实审
公开(公告)号：EP4354943A1
公开(公告)日：2024-04-17
申请号：EP22823918.2
申请日：2022-04-26
申请人： ZTE Corporation
发明人： LI, Qiang
IPC分类号： H04W24/08 , H04W24/02 , H04W76/15 , H04B17/318
CPC分类号： H04W24/08 , H04B17/318 , H04W24/02 , H04W76/15
摘要： A signal state display method, a terminal and a readable storage medium. The signal state display method is applied to a user equipment (UE), the UE is in dual connection with a first-system network and a second-system network, and the first-system network provides the UE with an anchor frequency point for accessing the second-system network. The signal state display method comprises: when a UE is in an idle state, monitoring a signal change value of the UE in a first-system network of the current cell (S 100); when the signal change value is greater than a preset signal threshold value, triggering an access request, such that the UE establishes a connection with the first-system network (S200); when a second-system network is accessed by means of an anchor frequency point of the first-system network, updating the current signal state to a signal state corresponding to the second-system network (S300); and continuously displaying the updated signal state until the next signal state update (S400).

2. 发明授权

EP2362596B1 METHOD AND DEVICE FOR FILTERING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING CHANNEL ESTIMATE RESULT 有权
标题翻译：方法和滤波装置OFDM信道估计结果
公开(公告)号：EP2362596B1
公开(公告)日：2016-08-24
申请号：EP09829972.0
申请日：2009-09-03
申请人： ZTE Corporation
发明人： QIU, Ning , LI, Qiang , CHEN, Li , CAO, Nanshan , ZHANG, Tao , YOU, Yueyi
IPC分类号： H04L25/02 , H04L5/00 , H04L27/26
CPC分类号： H04L25/022 , H04L5/0048 , H04L25/0234 , H04L27/2647

3. 发明公开

EP2426883A1 OFDM SIGNAL DEMODULATION METHOD AND DEVICE THEREOF 审中-公开
标题翻译： OFDM解调方法SIGNAL及其装置
公开(公告)号：EP2426883A1
公开(公告)日：2012-03-07
申请号：EP10785681.7
申请日：2010-04-23
申请人： ZTE Corporation
发明人： LI, Qiang , QIU, Ning , CAO, Nanshan
IPC分类号： H04L27/26
CPC分类号： H04L25/03159 , H04L25/0216 , H04L25/022 , H04L27/2607 , H04L27/2657 , H04L27/2665 , H04L27/2672 , H04L27/2676 , H04L27/2695 , H04L2025/03414
摘要： The present invention discloses an OFDM signal demodulation method and device thereof. The method comprises: adding a pre-obtained timing offset estimation value of an OFDM signal demodulation device to the initial position of an OFDM symbol of a received signal to obtain a window deviation value of the OFDM symbol; adding a channel time delay extension to the window deviation value to obtain a combined prefix initial position; calculating the combined OFDM signal value starting from the prefix initial position; processing the Fast Fourier Transform (FFT) for the combined OFDM signal value to obtain a frequency domain data subcarrier signal; calculating the frequency domain original channel estimation value processing the channel estimation based on the original channel estimation value phase modification of the OFDM symbol according to the channel estimation compensation indication value; and processing equalization and detection for the frequency domain data subcarrier signal according to the channel estimation result. The present invention uses the cycle prefix of the received signals to promote the demodulation performance of the OFDM signal demodulation device.

4. 发明公开

EP2439851A1 LAYERED ENCODING METHOD AND DEVICE FOR LDPC CODE 有权
标题翻译： ENCODIERUNG EINES SYSTEMATISCHEN LDPC编码器DER VERWENDUNG DER CHECKMATRIX
公开(公告)号：EP2439851A1
公开(公告)日：2012-04-11
申请号：EP10782937.6
申请日：2010-05-17
申请人： ZTE Corporation
发明人： ZHANG, Tao , YOU, Yueyi , LI, Qiang , QIU, Ning , CAO, Nanshan , YAO, Yangzhong
IPC分类号： H03M13/11
CPC分类号： H03M13/1102 , H03M13/116 , H03M13/1182 , H03M13/611 , H03M13/616
摘要： The present disclosure discloses a layered encoding method for a Low Density Parity Check (LDPC) code. The method comprises: determining, according to the structure characteristics of a check-bit matrix part H p of a check matrix H, location information of a check bit corresponding to a layered operation mode in an code word of an LDPC code and row information in H corresponding to the location information; obtaining, according to the determined location information and the corresponding row information, the value of the check bit corresponding to the location information by using the layered operation mode, and updating the code word according to the obtained value of the check bit; executing LU decomposition to a remaining check matrix H t corresponding to a remaining check bit to be determined, to obtain the value of the remaining check bit to be determined, and updating the code word according to the obtained value of the check bit. The present disclosure also discloses a layered encoding device for an LDPC code, which can solve the problems that the memory space required is large and the time delay for encoding is long in existing LDPC encoding methods.
摘要翻译：本公开公开了一种用于低密度奇偶校验（LDPC）码的分层编码方法。该方法包括：根据校验矩阵H的校验位矩阵部分H p的结构特征，确定与LDPC码的码字对应的分层操作模式的校验位的位置信息，以及 H对应位置信息; 根据确定的位置信息和相应的行信息，通过使用分层操作模式获得与位置信息相对应的校验位的值，并根据获得的校验位的值更新代码字; 执行LU分解到与要确定的剩余校验位相对应的剩余校验矩阵H t，以获得待确定的剩余校验位的值，并根据获得的校验位的值更新代码字。本公开还公开了一种用于LDPC码的分层编码装置，其可以解决所存在的存储空间大的问题，并且在现有的LDPC编码方法中编码的时间延迟很长。

5. 发明公开

EP2362596A1 METHOD AND DEVICE FOR FILTERING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING CHANNEL ESTIMATE RESULT 有权
标题翻译： VERFAHREN UND VORRICHTUNG ZUR FILTERUNG VON OFDM-KANALSCHÄTZUNGSERGEBNISSEN
公开(公告)号：EP2362596A1
公开(公告)日：2011-08-31
申请号：EP09829972.0
申请日：2009-09-03
申请人： ZTE Corporation
发明人： QIU, Ning , LI, Qiang , CHEN, Li , CAO, Nanshan , ZHANG, Tao , YOU, Yueyi
IPC分类号： H04L25/02
CPC分类号： H04L25/022 , H04L5/0048 , H04L25/0234 , H04L27/2647
摘要： The present invention provides a method and a device for filtering a channel estimation result in the orthogonal frequency division multiplexing (OFDM), to solve the problems in the prior art that the realization of filtering the channel estimation result is complex or the performance is poor. In virtue of the embodiments, the following method is described: time domain synchronous symbols received by a terminal device are converted to frequency domain synchronous symbols; frequency domain impulse response sequences are calculated according to the frequency domain synchronous symbols; minimum mean square (LMS) adaptive filter coefficients are adjusted according to the frequency domain impulse response sequences; a coefficient of a frequency domain filter of a channel estimation result of a data symbol according to the adjusted coefficients; an OFDM channel estimation result is filtered by using the frequency domain filter of the channel estimation result of the data symbol. The corresponding device is also provided in the embodiments. The OFDM channel estimation result frequency domain filter obtained according to the technical solution of the present invention has less calculation, simpler realization and better filtering performance.
摘要翻译：本发明提供一种用于对正交频分复用（OFDM）中的信道估计结果进行滤波的方法和装置，以解决现有技术中过滤信道估计结果的实现复杂或性能差的问题。根据实施例，描述了以下方法：由终端设备接收的时域同步符号被转换为频域同步符号; 根据频域同步符号计算频域脉冲响应序列; 根据频域脉冲响应序列调整最小均方（LMS）自适应滤波器系数; 根据调整后的系数的数据符号的信道估计结果的频域滤波器的系数; 通过使用数据符号的信道估计结果的频域滤波器对OFDM信道估计结果进行滤波。在实施例中也提供相应的装置。根据本发明的技术方案获得的OFDM信道估计结果频域滤波器具有较少的计算，更简单的实现和更好的滤波性能。

6. 发明公开

EP3048746A1 METHOD AND DEVICE FOR ESTIMATION OF CHROMATIC DISPERSION IN OPTICAL COHERENT COMMUNICATION 有权转让
标题翻译：光学相干通信中色散的估计方法和装置
公开(公告)号：EP3048746A1
公开(公告)日：2016-07-27
申请号：EP14797641.9
申请日：2014-05-23
申请人： ZTE Corporation , ZTE Microelectronics Technology Co., Ltd.
发明人： YAO, Yangzhong , LI, Qiang , LI, Yunpeng , GU, Guohua , REN, Wei
IPC分类号： H04B10/079
CPC分类号： H04B10/07951 , H04B10/612 , H04B10/613 , H04B10/6161 , H04B10/6163 , H04B10/6165 , H04B10/6166
摘要： Disclosed are a chromatic dispersion estimation method and device in optical coherent communication, wherein, the method includes: performing a fast Fourier transform on IQ-imbalance compensated data to obtain frequency-domain data in two polarization directions; calculating autocorrelation sequences of the frequency-domain data and performing an inverse fast Fourier transform on the values of the autocorrelation sequences; calculating modulus squares of the results of the inverse fast Fourier transform, and adding the results in the two polarization directions to obtain P [n]; determining a mean value P [n] of P [n]s of a plurality of data sets; calculating an index n 0 of the maximum value of P̃ [n], and estimating a dispersion value of the optical fiber link according to the index n 0 of the maximum value of P̃ [n]. The abovementioned technical solution allows a significantly accurate and rapid estimation of dispersion values.
摘要翻译：本发明公开了一种光相干通信中的色散估计方法及装置，其中，该方法包括：对IQ不平衡补偿后的数据进行快速傅立叶变换，得到两个极化方向的频域数据; 计算频域数据的自相关序列并对自相关序列的值执行逆快速傅里叶变换; 计算快速傅立叶逆变换结果的模数平方，并将结果在两个偏振方向上相加得到P [n]; 确定多个数据集的P [n]的平均值P [n]; 计算P [n]的最大值的索引n0，并根据最大值P [n]的索引n0估计光纤链路的色散值。上述技术方案允许对色散值进行非常准确且快速的估计。

7. 发明公开

EP2600579A1 METHOD AND APPARATUS FOR ESTIMATING FINE FREQUENCY OFFSET 审中-公开
标题翻译： VERFAHREN UND VORRICHTUNG ZURSCHÄTZUNGEINES FEINEN FREQUENZOFFSETS
公开(公告)号：EP2600579A1
公开(公告)日：2013-06-05
申请号：EP11811734.0
申请日：2011-02-16
申请人： ZTE Corporation
发明人： QIU, Ning , LI, Qiang , ZENG, Wenqi , YU, Tiankun , LIU, Zhongwei , XING, Yannan , LIANG, Lihong , LI, Liwen , LIN, Feng , CHU, Jintao , CHEN, Xinhua
IPC分类号： H04L27/26
CPC分类号： G01R23/02 , G06F17/11 , H04L27/266 , H04L27/2679
摘要： The present invention discloses a fine frequency offset estimation method and apparatus. The method comprises: calculating a first accumulated estimation value corresponding to a first multiframe state according to a phase relevant value of a subframe and a phase of a subframe in the first multiframe state; calculating a second accumulated estimation value corresponding to a second multiframe state according to the phase relevant value of the subframe and a phase of a subframe in the second multiframe state; determining that a decision result of a multiframe state is the first multiframe state or the second multiframe state according to the first accumulated estimation value and the second accumulated estimation value; and performing a fine frequency offset estimation according to the decision result of the multiframe state. The apparatus disclosed in the present invention is less coupled with other modules, has excellent performance in various environments, and realizes the unbiased estimation of timing offset.
摘要翻译：本发明公开了一种精细频偏估计方法及装置。该方法包括：根据第一多帧状态的子帧的相位相关值和子帧的相位，计算与第一多帧状态对应的第一累积估计值; 根据子帧的相位相关值和第二多帧状态的子帧的相位，计算与第二多帧状态对应的第二累积估计值; 根据第一累积估计值和第二累积估计值，确定多帧状态的判定结果是第一多帧状态或第二多帧状态; 以及根据多帧状态的判定结果进行精细的频率偏移估计。本发明公开的装置与其他模块耦合较少，在各种环境中具有优异的性能，并且实现了对时间偏移的无偏估计。

8. 发明公开

EP2515456A1 RECEIVING APPARATUS AND METHOD FOR MULTI-FRAME SYNCHRONIZATION 失效转让
标题翻译： EMPFANGSVORRICHTUNG以外地区同步化同步雷曼
公开(公告)号：EP2515456A1
公开(公告)日：2012-10-24
申请号：EP10851662.6
申请日：2010-12-02
申请人： ZTE Corporation
发明人： QIU, Ning , LI, Qiang , ZENG, Wenqi , YU, Tiankun , LIU, Zhongwei , XING, Yannan , LIANG, Lihong , LI, Liwen , LIN, Feng , CHU, Jintao
IPC分类号： H04J3/06
CPC分类号： H04L7/041 , H04B1/70735 , H04B1/7075 , H04J3/0605 , H04L7/042 , H04W56/00
摘要： The present invention discloses a multi-frame synchronization method, the method comprises: for each received sub-frame, a receiver determining a probability that the received sub-frame is each of sub-frames in a multi-frame, a sub-frame with maximum probability being a state of the currently received sub-frame after N sub-frames are received. The present invention further discloses a receiving apparatus for multi-frame synchronization comprising a calculation module; wherein the calculation module is configured to calculate a probability that a received sub-frame is each of sub-frames in a multi-frame, and determine a state of the currently received sub-frame based on a sub-frame with maximum probability after N sub-frames are received. The present invention effectively achieves a position for multi-frame synchronization and low calculation complexity.
摘要翻译：本发明公开了一种多帧同步方法，该方法包括：对于每个接收到的子帧，确定接收到的子帧是多帧中的每个子帧的概率的接收机，具有最大概率是接收到N个子帧之后的当前接收到的子帧的状态。本发明还公开了一种用于多帧同步的接收装置，包括计算模块; 其中所述计算模块被配置为计算接收到的子帧是多帧中的每个子帧的概率，并且基于在N之后具有最大概率的子帧来确定当前接收到的子帧的状态子帧被接收。本发明有效地实现了多帧同步的位置和低的计算复杂度。

9. 发明公开

EP2434814A1 SYNCHRONIZATION METHOD AND DEVICE 审中-公开
标题翻译：同步发展 -
公开(公告)号：EP2434814A1
公开(公告)日：2012-03-28
申请号：EP10780009.6
申请日：2010-03-25
申请人： ZTE Corporation
发明人： YOU, Yueyi , LI, Qiang , QIU, Ning , CAO, Nanshan , ZHANG, Tao
IPC分类号： H04W56/00
CPC分类号： H04L27/2656 , H04L27/2675
摘要： A synchronization method is disclosed, including: obtaining a synchronization symbol position d̂ 0 of one time slot of an initial update period; taking N track frames as an update period to adjust the synchronization symbol position, and the step of adjusting the synchronization symbol position including: obtaining a synchronization symbol position d̂ k +1 =d̂ k + N track T̂ k of a corresponding time slot of a ( k + 1) th update period according to a synchronization symbol position d̂ k of a corresponding time slot of a k th update period and an inter-frame sampling derivation estimation value T̂ k of said k th update period; wherein the corresponding time slot refers to a time slot corresponding to a position of said time slot of said initial update period; obtaining synchronization symbol positions of other time slots in said k th update period according to the synchronization symbol position d̂ k of the corresponding time slot of the k th update period and the inter-frame sampling derivation estimation value T̂ k of said k th update period, wherein the inter-frame sampling derivation estimation value T̂ k refers to an estimation value of a synchronization symbol position derivation in one frame, k ≤ 0 ; so as to implement a timing synchronization. A synchronization apparatus is also disclosed. The method and apparatus of the present invention make use of the periodicity of the broadcast system to update the synchronization symbol position, and adopts the synchronization forecast to obtain the other synchronization symbol positions in the same update period, which reduces synchronization calculation amount.
摘要翻译：公开了一种同步方法，包括：获得初始更新周期的一个时隙的同步符号位置d 0; 将N个跟踪帧作为更新周期来调整同步符号位置，以及调整同步符号位置的步骤包括：获得a（k）的相应时隙的同步符号位置dk + 1 = dk + N track T k 根据第kk更新周期的相应时隙的同步符号位置dk和所述第k个更新周期的帧间采样导出估计值T k，确定第1 + 1）个更新周期; 其中相应的时隙是指对应于所述初始更新周期的所述时隙的位置的时隙; 根据所述第k更新周期的对应时隙的同步符号位置dk和所述第k个更新周期的帧间采样导出推定值T k，获得所述第k个更新周期中的其他时隙的同步符号位置，其中，所述帧间采样导出估计值T k是指在一帧中的同步符号位置导出的估计值，k≠0; 从而实现定时同步。还公开了同步装置。本发明的方法和装置利用广播系统的周期性来更新同步符号位置，采用同步预测来获得同一更新周期中的其他同步符号位置，从而减少同步计算量。

10. 发明授权

EP3429286B1 VERIFICATION METHOD AND DEVICE 有权
公开(公告)号：EP3429286B1
公开(公告)日：2020-12-02
申请号：EP16893263.0
申请日：2016-09-19
申请人： ZTE Corporation
发明人： LI, Qiang
IPC分类号： H04W12/06 , H04W8/18 , H04W60/00

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