返回项目页面
对比文件列表
CA2267169A1_Description_20260219_1923_+++A_B_C_D_G_H_L_M_O_P_e_f_i_j+++.docx
2026-03-10 04:37
CA2267169A1_Description_20260220_1521_+++A_B_C_D_G_H_L_O_e_f_i_j_m_p+++.docx
2026-03-10 04:37
CN1783750A_Description_20260219_1805_+++B_D_G_H_P_a_c_o+++.docx
2026-03-10 04:37
EP0929949A1_Description_20260219_1801_+++A_B_C_D_G_H_K_O_P_e_f_i_j_l_m_n+++.docx
2026-03-10 04:37
EP0929949A1_Description_20260220_0303_+++A_B_C_D_G_H_O_P_e_f_i_j_k_l_m_n+++.docx
2026-03-10 04:37
EP0934633A1_Description_20260219_1922_+++C_D_P_a_b_g_h_o+++.docx
2026-03-10 04:37
EP1110100A1_Description_20260219_1927_+++A_B_C_D_P_e_f_g_h_o+++.docx
2026-03-10 04:37
EP1110100A1_Description_20260220_1524_+++A_B_C_D_G_H_P_e_f_l_m_o+++.docx
2026-03-10 04:37
US5943606A_Description_20260219_1800_+++C_D_G_H_K_O_P_f_i_j+++.docx
2026-03-10 04:37
US5943606A_Description_20260220_1520_+++C_D_G_H_O_f+++.docx
2026-03-10 04:37
US6823170B1_Description_20260219_1826_+++B_C_D_E_F_G_H_P_a_o+++.docx
2026-03-10 04:37
US6823170B1_Description_20260220_0311_+++G_H_a_b_c_d_e_f_o+++.docx
2026-03-10 04:37
US7933215B2_Description_20260219_2024_+++A_B_C_D_G_H_K_O_e_f_i_j_l_m_n_p+++.docx
2026-03-10 04:37
US7933215B2_Description_20260220_0332_+++B_D_E_F_G_H_I_J_K_P_a_c_l_m_o+++.docx
2026-03-10 04:37
US8139685B2_Description_20260219_2027_+++c_o+++.docx
2026-03-10 04:37
US8139685B2_Description_20260220_0335_+++O+++.docx
2026-03-10 04:37
US8384584B2_Description_20260219_2022_+++B_C_D_F_G_H_P_a_e_i_j_l_m_o+++.docx
2026-03-10 04:37
US8384584B2_Description_20260220_0331_+++C_D_P_a_b_g_o+++.docx
2026-03-10 04:37
WO2004002022A1_Description_20260220_0315_+++B_D_G_H_K_O_a_c_e_f_i_j_p+++.docx
2026-03-10 04:37
WO2004002022A1_Description_20260220_0315_+++B_D_G_H_K_O_a_c_e_f_i_j_p+++.docx

对比文件名称:WO2004002022A1_Description_20260220_0315

目标专利名称:用于时间或频率同步的方法、设备和介质CN107408978B

模型名称:DeepSeek-R1

### 特征比对表格

技术特征描述及公开性判断结果对比文件原文引用公开性论述
**技术特征A**:所述非地球同步卫星还与网关通信,所述方法包括:基于本地时间基准和接收到的信号或所述非地球同步卫星的星历表来计算预校正时间值<br>**判断结果:隐含公开 (a)**[0050] “...a ground station transmits a first or forward link pilot signal in the forward link direction. One or more user terminals located in the forward link beam acquire and track the transmitted pilot signal. Each terminal operates so as to recover carrier phase and modulation chip clock timing from the pilot signal that originated at the ground station. The terminal then derives its transmit or transmission carrier frequency and chip clock timing from the recovered forward pilot carrier frequency and modulation chip clock timing.”<br>[0052] “...the access terminal adjusts the frequency of its oscillator so as to lock to the frequency of the signal received from the gateway.”<br>[0006] “Where several gateways are used throughout a communication system, they are generally configured to use a common timing source, such as the phase of signals detected from GPS satellites...”对比文件公开了用户终端(UT)接收来自地面站(网关)的前向链路导频信号,并从中恢复载波相位和调制码片时钟定时,然后基于此导出其发射载波频率和码片时钟定时(见[0050])。这隐含了基于接收到的信号来计算用于同步发射的时间基准。此外,对比文件提及网关可使用来自GPS卫星信号的相位作为通用定时源(见[0006]),这相当于一种本地时间基准。虽然对比文件未明确提及“星历表”,但其描述的地球同步卫星场景中,传播延迟相对固定,计算时间校正时可能隐含了已知的卫星位置(类似星历表信息)。因此,本领域技术人员可以从对比文件公开的“基于接收到的导频信号恢复定时并导出发射定时”中,合理推理出“基于本地时间基准和接收到的信号来计算预校正时间值”这一技术方案。但需注意,对比文件针对地球同步卫星,其计算目的和动态性与目标专利的非地球同步卫星场景有区别。
**技术特征B**:应用所述预校正时间值以调节所述第一地面站处的所述第一信号的所述传输时间<br>**判断结果:直接公开 (B)**[0008] “Terminals, in accordance with the present invention, have the ability to advance or retard the timing of their transmitted signals relative to the timing derived from the forward link pilot signal, and they do so based, at least in part, on the results of the timing comparison with the reference. This is accomplished by having the ground station transmit a control signal on the forward link to each terminal... providing commands or instructions to each terminal as to a desired amount or degree by which it should advance or retard the respective transmit timing for achieving desired synchronization...”<br>[0057] “In response to the information or commands provided by the ground station, each terminal then adjusts its transmit timing and/or frequency, typically, in small increments, in accordance with the instructions received...”对比文件明确公开了终端能够根据来自地面站的指令,提前或延迟其发射信号的定时(见[0008]),并且终端响应于来自地面站的控制信息来调整其发射定时(见[0057])。这直接对应于应用一个(由控制信号指示的)预校正值来调节终端(即第一地面站)处信号的传输时间。
**技术特征C**:基于本地频率基准和所述接收到的信号或所述非地球同步卫星的星历表来计算预校正频率值<br>**判断结果:隐含公开 (c)**[0050] “The terminal then derives its transmit or transmission carrier frequency and chip clock timing from the recovered forward pilot carrier frequency and modulation chip clock timing.”<br>[0052] “In one method for achieving frequency synchronization between an access terminal and the gateway, the access terminal adjusts the frequency of its oscillator so as to lock to the frequency of the signal received from the gateway.”对比文件公开了终端从其恢复的前向导频载波频率中导出其发射载波频率(见[0050]),以及通过调整其振荡器频率以锁定到从网关接收的信号频率来实现频率同步(见[0052])。这隐含了基于接收到的信号(导频)来调整本地频率,可被视为一种计算频率校正值的方式。虽然对比文件未明确提及“本地频率基准”和“星历表”,但本领域技术人员可以理解,为了锁定接收信号频率,终端必然需要将接收信号频率与某个内部参考(如本地振荡器)进行比较,从而确定频率偏移量(即预校正值)。因此,该特征被隐含公开。
**技术特征D**:以及应用所述预校正频率值以调节所述第一地面站处的所述第一信号的所述射频,<br>**判断结果:直接公开 (D)**[0057] “In response to the information or commands provided by the ground station, each terminal then adjusts its transmit timing and/or frequency, typically, in small increments, in accordance with the instructions received...”<br>[0069] “If an adjustment request is based on ... frequency too high, the processor commands ... one or more of the frequency sources ... to retard or decrease the frequency, respectively. If ... the frequency too low, processor 330 commands ... one or more of the frequency sources ... to advance or increase the frequency, respectively.”对比文件明确公开了终端响应于地面站的指令,调整其发射频率(见[0057]),并且具体描述了处理器如何命令频率源增加或减少频率(见[0069])。这直接对应于应用一个(由控制信号指示的)预校正值来调节终端处信号的射频。
**技术特征E**:其中,所述预校正时间值被配置为减小在所述非地球同步卫星处和/或所述网关处的所述第一信号的到达时间TOA与在所述非地球同步卫星处和/或所述网关处的来自一个或多个其它UT的一个或多个其它信号的一个或多个TOA之间的TOA差,<br>**判断结果:隐含公开 (e)**[0008] “...providing commands or instructions to each terminal as to a desired amount or degree by which it should advance or retard the respective transmit timing for achieving desired synchronization of the reverse link signals.”<br>[0057] “...to maintain time alignment with the receiver(s) in the ground station.”<br>[0049] “...a known code-phase relationship between signals from at least two terminals in a beam.”对比文件公开了通过向终端发送指令来调整其发射定时,以实现反向链路信号的期望同步(见[0008]),并保持与地面站接收机的时间对齐(见[0057])。其根本目的正是为了使来自不同终端的信号在网关处能够同步到达(具有已知的码相位关系,见[0049]),从而支持正交CDMA。这必然意味着要减小不同信号到达网关的时间差(TOA差)。因此,尽管目标专利明确表述了“减小TOA差”,而对比文件表述为“实现同步”或“时间对齐”,但本领域技术人员可以毫无疑义地理解,两者目的相同,技术效果一致,该特征被隐含公开。
**技术特征F**:其中,所述预校正频率值被配置为减小在所述非地球同步卫星处和/或所述网关处的所述第一信号的无线电频率与在所述非地球同步卫星处和/或所述网关处的来自所述一个或多个其它UT的所述一个或多个其它信号的一个或多个无线电频率之间的频偏差。<br>**判断结果:隐含公开 (f)**[0051] “In addition to timing synchronization ..., the frequency offset between the transmitter of the access terminal and the receiver of the gateway should also be made small enough so that the phase change of the signal over the period of one orthogonal code is negligible...”<br>[0052] “In one method for achieving frequency synchronization between an access terminal and the gateway, the access terminal adjusts the frequency of its oscillator so as to lock to the frequency of the signal received from the gateway.”对比文件明确指出了为了实现正交CDMA,需要使终端发射机与网关接收机之间的频率偏移足够小(见[0051]),并描述了通过调整终端振荡器频率以锁定到网关信号频率来实现频率同步的方法(见[0052])。频率同步的目的正是为了减小不同信号载波频率之间的偏差(频偏差),以确保正交性。因此,本领域技术人员可以合理推断,所应用的频率校正值正是被配置为实现此目的,即减小频偏差。该特征被隐含公开。
**技术特征G**:其中,所述非地球同步卫星能够操作用于与所述一个或多个其它UT之中的至少第二UT通信,并且其中,所述第二UT能够操作用于向所述非地球同步卫星发射第二信号。<br>**判断结果:直接公开 (G)**[0040] “An exemplary wireless communication system ... may include ... at least one geo-stationary communication satellite ... effecting communications with one or more remote user terminals.”<br>[0041] FIG. 1 shows multiple user terminals (112a, 112b, 112c, 112d).<br>[0060] “This architecture is used because here because, in accordance with the present invention, a plurality of access terminals are transmitting OCDMA signals to the gateway in parallel.”对比文件附图1和描述明确展示了卫星与多个用户终端(UT)通信的系统(见[0040], [0041]),并且明确指出多个接入终端并行地向网关发射OCDMA信号(见[0060])。这直接公开了卫星能够与至少第二UT通信,且第二UT能够向卫星发射信号。
**技术特征H**:其中,所述网关能够操作用于通过所述非地球同步卫星从所述第一UT接收所述第一信号并从所述第二UT接收所述第二信号。<br>**判断结果:直接公开 (H)**[0043] “The group of signals that go from the terminals through satellite 110, down to gateway 116 comprise the"return link."”<br>[0060] “...a plurality of access terminals are transmitting OCDMA signals to the gateway in parallel.”对比文件明确描述了从终端通过卫星到网关的信号组成了返回链路(见[0043]),并且多个接入终端并行地向网关发射信号(见[0060])。这直接公开了网关能够通过卫星从多个UT(包括第一UT和第二UT)接收信号。
**技术特征I**:其中,调节所述第一UT处的所述第一信号的所述传输时间以减小在所述网关处的所述第一信号和所述第二信号的TOA之间的TOA差,并且其中,调节所述第一UT处的所述第一信号的所述射频以减小在所述网关处的所述第一信号和所述第二信号的多普勒频移之间的差。<br>**判断结果:隐含公开 (i)**[0008] “...advance or retard the respective transmit timing for achieving desired synchronization of the reverse link signals.”<br>[0051] “...the frequency offset between the transmitter of the access terminal and the receiver of the gateway should also be made small enough...”<br>[0057] “...adjusts its transmit timing and/or frequency... to maintain time alignment...”如特征E和F所述,对比文件公开了调整终端发射定时以实现反向链路信号同步(减小TOA差),以及减小频率偏移(频偏差)。虽然对比文件未明确提及“多普勒频移”,但其描述的频率同步旨在消除终端与网关之间的频率偏差,这种偏差在多卫星通信场景中通常包含多普勒分量。本领域技术人员可以理解,在卫星通信中,调节射频以减小频率偏移,自然包含了减小由相对运动引起的多普勒频移差。因此,该特征的整体目的和效果已被对比文件隐含公开。
**技术特征J**:其中,调节所述第二UT处的所述第二信号的传输时间以减小在所述网关处的所述第一信号和所述第二信号的TOA之间的TOA差,并且其中,调节所述第二UT处的所述第二信号的射频以减小在所述网关处的所述第一信号和所述第二信号的多普勒频移之间的差。<br>**判断结果:隐含公开 (j)**[0008] “...providing commands or instructions to each terminal as to a desired amount or degree by which it should advance or retard the respective transmit timing...”<br>[0057] “each terminal then adjusts its transmit timing and/or frequency...”对比文件公开了地面站向每个终端提供指令以调整其各自的发射定时(见[0008]),并且每个终端都调整其发射定时和/或频率(见[0057])。这明确意味着不仅第一UT,其他UT(如第二UT)也需要进行类似的调节。调节的目的是实现所有终端信号在网关处的同步(减小TOA差)和频率对准(减小频偏差/多普勒差)。因此,该特征关于第二UT的调节同样被隐含公开。
**技术特征K**:还包括:从所述网关接收至少一个命令,以使所述第一UT处的所述第一信号的所述传输时间提前或推迟,以减小在所述网关处的所述第一信号和所述第二信号的TOA之间的TOA差,以及从所述网关接收至少一个额外的命令,以增大或减小所述第一UT处的所述第一信号的所述射频,以减小在所述网关处的所述第一信号和所述第二信号的多普勒频移之间的差。<br>**判断结果:直接公开 (K)**[0008] “This is accomplished by having the ground station transmit a control signal on the forward link to each terminal it desires to communication with ... providing commands or instructions to each terminal as to a desired amount or degree by which it should advance or retard the respective transmit timing...”<br>[0057] “The ground station then transmits a control, command, or reference signal on the forward link to each desired terminal, which acts to instruct the terminal to advance or retard its transmit timing, or alter its transmission frequency in some embodiments.”<br>[0072] “...transmitting in step 408, to the terminal, a transmit time adjustment instruction; ... The gateway may detect a frequency offset ... and then transmit a frequency adjustment instruction in step 408, as well.”对比文件多次且明确地公开了地面站(网关)向终端发送控制信号或命令,指令终端提前或延迟其发射定时(见[0008], [0057]),以及改变其发射频率(见[0057], [0072])。终端接收这些命令并据此进行调整。这直接公开了特征K的全部内容。
**技术特征L**:其中,调节所述第一UT处的所述第一信号的所述传输时间以减小在所述非地球同步卫星处的所述第一信号和所述第二信号的TOA之间的TOA差,并且其中,调节所述第二UT处的所述第二信号的射频以减小在所述非地球同步卫星处的所述第一信号和所述第二信号的多普勒频移之间的差。<br>**判断结果:未公开**对比文件未明确描述在卫星处(而非网关处)进行TOA差或频偏差的比较和调节目的。对比文件的同步目标明确指向网关处的接收机(见[0057] “maintain time alignment with the receiver(s) in the ground station”)。虽然信号会经过卫星转发,但对比文件未教导以在卫星处对齐信号为目标进行调节。对比文件描述的同步机制旨在使信号在网关接收机处同步,以实现正交CDMA。其所有定时和频率的比较、命令生成都是基于网关处的测量。没有证据表明对比文件考虑了在卫星处(作为中继点)减小不同UT信号之间的到达时间差或频率差。目标专利明确将调节目标扩展到“在非地球同步卫星处”,这是其针对非地球同步卫星动态网络可能采取的另一种优化方案,但该方案未被对比文件公开或暗示。
**技术特征M**:其中,调节所述第二UT处的所述第二信号的传输时间以减小在所述非地球同步卫星处的所述第一信号和所述第二信号的TOA之间的TOA差,并且其中,调节所述第一UT处的所述第二信号的射频以减小在所述非地球同步卫星处的所述第一信号和所述第二信号的多普勒频移之间的差。<br>**判断结果:未公开**同特征L,对比文件未公开以在卫星处对齐信号为目标的调节。此外,特征M中存在明显的笔误“调节所述第一UT处的所述第二信号的射频”,这从上下文看应为“调节所述第二UT处的所述第二信号的射频”。即便如此,其核心仍是在卫星处减小TOA差和频偏差,这与特征L类似,未被对比文件公开。基于与特征L相同的理由,对比文件未公开以在卫星(无论是地球同步还是非地球同步)处减小信号间TOA差和频偏差为目标的调节方案。因此,该特征未被公开。
**技术特征N**:还包括:从所述卫星接收至少一个命令,以使所述第一UT处的所述第一信号的所述传输时间提前或推迟,以减小在所述非地球同步卫星处的所述第一信号和所述第二信号的TOA之间的TOA差,以及从所述卫星接收至少一个额外的命令,以增大或减小所述第一UT处的所述第一信号的所述射频,以减小在所述非地球同步卫星处的所述第一信号和所述第二信号的多普勒频移之间的差。<br>**判断结果:未公开**对比文件中所有控制命令均由地面站(网关)生成并发送给终端(见[0008], [0057], [0072])。没有描述由卫星生成或发送此类定时或频率调整命令。卫星在对比文件中被描述为转发器或中继角色。目标专利特征N限定命令是从卫星接收的。对比文件明确、一致地描述了命令的发送方是地面站(网关),而非卫星。这是两种不同的系统架构和控制逻辑。对比文件没有提供任何由卫星发送此类调整命令的启示或可能性。因此,该特征未被公开。
**技术特征O**:其中,所述本地时间基准包括本地全球定位系统(GPS)时间基准。<br>**判断结果:直接公开 (O)**[0006] “...they are generally configured to use a common timing source, such as the phase of signals detected from GPS satellites, which employ a form of what is referred to as Universal Time.”对比文件直接公开了网关通常被配置为使用来自GPS卫星的信号相位作为通用定时源(见[0006])。这明确对应于“本地GPS时间基准”。虽然该描述针对网关,但本领域技术人员可以理解,终端也可能配备类似的GPS接收机以获取精确时间基准,尤其是在需要高精度同步的系统中。因此,该特征被直接公开。
**技术特征P**:还包括:依据基于所述预校正时间值调整的所述传输时间以及基于所述预校正频率值调整的所述射频,向所述非地球同步卫星发射所述第一信号。<br>**判断结果:隐含公开 (p)**[0050] “The terminal then derives its transmit or transmission carrier frequency and chip clock timing from the recovered forward pilot carrier frequency and modulation chip clock timing.”<br>[0057] “...each terminal then adjusts its transmit timing and/or frequency...”<br>[0075] “The terminal then transmits a second pilot signal in the reverse link direction...”对比文件公开了终端基于恢复的定时和频率导出其发射参数(见[0050]),调整其发射定时和/或频率(见[0057]),然后向卫星发射信号(例如第二导频信号,见[0075])。这完整地涵盖了“依据调整后的传输时间和射频向卫星发射信号”这一步骤。虽然对比文件未用完全相同的措辞,但本领域技术人员可以毫无疑义地从其描述中得出该技术方案。因此,该特征被隐含公开。

<<<B>>><<<D>>><<<G>>><<<H>>><<<K>>><<<O>>>

<<<a>>><<<c>>><<<e>>><<<f>>><<<i>>><<<j>>><<<p>>>

权利要求与技术特征
Powered by Django

网站备案号:渝ICP备2023012882号


重庆市非显而易见网络科技有限责任公司 A Anti NPE NPE