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1. 发明授权

US08136023B2 Decoding method for tail-biting convolutional codes using a search depth viterbi algorithm 有权
标题翻译：使用搜索深度维特比算法解码卷积码的解码方法
公开(公告)号：US08136023B2
公开(公告)日：2012-03-13
申请号：US12945661
申请日：2010-11-12
申请人： Wuxian Shi , Juan Du , Yiqun Ge , Guobin Sun
发明人： Wuxian Shi , Juan Du , Yiqun Ge , Guobin Sun
IPC分类号： H03M13/03
CPC分类号： H03M13/3938 , H03M13/413 , H03M13/6362 , H03M13/6502 , H03M13/6505 , H04L1/0054 , H04L1/0059
摘要： A method for decoding tail-biting convolutional codes. The method includes initializing a correction depth, selecting a first starting state from a set of encoding states, and initializing a metric value for the selected starting state as zero and the other states as infinity. The input bit stream is read and a Search Depth Viterbi algorithm (SDVA) is performed to determine path metrics and identify a minimum-metric path. The ending state for the minimum-metric path is determined and the output for this ending state is identified as “previous output.” A second starting state is set to the ending state of the minimum-metric path, and symbols equal to the correction depth from the previous output are read. The SDVA is performed on the second set of read symbols to generate a corrected output. A decoded output is generated by replacing symbols at the beginning of the previous output with the corrected output.
摘要翻译：一种用于解码尾巴卷积码的方法。该方法包括初始化校正深度，从一组编码状态中选择第一起始状态，以及将所选择的起始状态的度量值初始化为零，将其他状态初始化为无穷大。读取输入比特流，执行搜索深度维特比算法（SDVA）以确定路径度量并识别最小度量路径。确定最小度量路径的结束状态，并将该结束状态的输出识别为“先前输出”。将第二起始状态设置为最小度量路径的结束状态，等于校正深度的符号从以前的输出读取。在第二组读符号上执行SDVA以产生校正输出。通过使用校正输出替换先前输出开始处的符号来产生解码输出。

2. 发明授权

US08397148B2 Low complexity decoding algorithm for tail-biting convolutional codes 有权
标题翻译：用于尾部卷积码的低复杂度解码算法
公开(公告)号：US08397148B2
公开(公告)日：2013-03-12
申请号：US13368190
申请日：2012-02-07
申请人： Wuxian Shi , Juan Du , Yiqun Ge , Guobin Sun
发明人： Wuxian Shi , Juan Du , Yiqun Ge , Guobin Sun
IPC分类号： H03M13/03
CPC分类号： H03M13/3938 , H03M13/413 , H03M13/6362 , H03M13/6502 , H03M13/6505 , H04L1/0054 , H04L1/0059
摘要： A method for decoding tail-biting convolutional codes. The method includes initializing a correction depth, selecting a first starting state from a set of encoding states, and initializing a metric value for the selected starting state as zero and the other states as infinity. The input bit stream is read and a Search Depth Viterbi algorithm (SDVA) is performed to determine path metrics and identify a minimum-metric path. The ending state for the minimum-metric path is determined and the output for this ending state is identified as “previous output.” A second starting state is set to the ending state of the minimum-metric path, and symbols equal to the correction depth from the previous output are read. The SDVA is performed on the second set of read symbols to generate a corrected output. A decoded output is generated by replacing symbols at the beginning of the previous output with the corrected output.
摘要翻译：一种用于解码尾巴卷积码的方法。该方法包括初始化校正深度，从一组编码状态中选择第一起始状态，以及将所选择的起始状态的度量值初始化为零，将其他状态初始化为无穷大。读取输入比特流，执行搜索深度维特比算法（SDVA）以确定路径度量并识别最小度量路径。确定最小度量路径的结束状态，将该结束状态的输出识别为先前的输出。第二起始状态被设置为最小度量路径的结束状态，并且读取等于来自先前输出的校正深度的符号。在第二组读符号上执行SDVA以产生校正输出。通过使用校正输出替换先前输出开始处的符号来产生解码输出。

3. 发明授权

US07856591B2 Decoding method for tail-biting convolutional codes using a search depth viterbi algorithm 有权
标题翻译：使用搜索深度维特比算法解码卷积码的解码方法
公开(公告)号：US07856591B2
公开(公告)日：2010-12-21
申请号：US11687543
申请日：2007-03-16
申请人： Wuxian Shi , Juan Du , Yiqun Ge , Guobin Sun
发明人： Wuxian Shi , Juan Du , Yiqun Ge , Guobin Sun
IPC分类号： H03M13/03
CPC分类号： H03M13/3938 , H03M13/413 , H03M13/6362 , H03M13/6502 , H03M13/6505 , H04L1/0054 , H04L1/0059
摘要： A method for decoding tail-biting convolutional codes. The method includes initializing a correction depth, selecting a first starting state from a set of encoding states, and initializing a metric value for the selected starting state as zero and the other states as infinity. The input bit stream is read and a Search Depth Viterbi algorithm (SDVA) is performed to determine path metrics and identify a minimum-metric path. The ending state for the minimum-metric path is determined and the output for this ending state is identified as “previous output.” A second starting state is set to the ending state of the minimum-metric path, and symbols equal to the correction depth from the previous output are read. The SDVA is performed on the second set of read symbols to generate a corrected output. A decoded output is generated by replacing symbols at the beginning of the previous output with the corrected output.
摘要翻译：一种用于解码尾巴卷积码的方法。该方法包括初始化校正深度，从一组编码状态中选择第一起始状态，以及将所选择的起始状态的度量值初始化为零，将其他状态初始化为无穷大。读取输入比特流，执行搜索深度维特比算法（SDVA）以确定路径度量并识别最小度量路径。确定最小度量路径的结束状态，并将该结束状态的输出识别为“先前输出”。将第二起始状态设置为最小度量路径的结束状态，等于校正深度的符号从以前的输出读取。在第二组读符号上执行SDVA以产生校正输出。通过使用校正输出替换先前输出开始处的符号来产生解码输出。

4. 发明申请

US20120137198A1 LOW COMPLEXITY DECODING ALGORITHM FOR TAIL-BITING CONVOLUTIONAL CODES 有权
标题翻译：用于尾随位移代码的低复杂度解码算法
公开(公告)号：US20120137198A1
公开(公告)日：2012-05-31
申请号：US13368190
申请日：2012-02-07
申请人： Wuxian Shi , Juan Du , Yigun Ge , Guobin Sun
发明人： Wuxian Shi , Juan Du , Yigun Ge , Guobin Sun
IPC分类号： H03M13/23 , G06F11/10 , H03M13/41
CPC分类号： H03M13/3938 , H03M13/413 , H03M13/6362 , H03M13/6502 , H03M13/6505 , H04L1/0054 , H04L1/0059
摘要： A method for decoding tail-biting convolutional codes. The method includes initializing a correction depth, selecting a first starting state from a set of encoding states, and initializing a metric value for the selected starting state as zero and the other states as infinity. The input bit stream is read and a Search Depth Viterbi algorithm (SDVA) is performed to determine path metrics and identify a minimum-metric path. The ending state for the minimum-metric path is determined and the output for this ending state is identified as “previous output.” A second starting state is set to the ending state of the minimum-metric path, and symbols equal to the correction depth from the previous output are read. The SDVA is performed on the second set of read symbols to generate a corrected output. A decoded output is generated by replacing symbols at the beginning of the previous output with the corrected output.
摘要翻译：一种用于解码尾巴卷积码的方法。该方法包括初始化校正深度，从一组编码状态中选择第一起始状态，以及将所选择的起始状态的度量值初始化为零，将其他状态初始化为无穷大。读取输入比特流，执行搜索深度维特比算法（SDVA）以确定路径度量并识别最小度量路径。确定最小度量路径的结束状态，并将该结束状态的输出识别为“先前输出”。将第二起始状态设置为最小度量路径的结束状态，等于校正深度的符号从以前的输出读取。在第二组读符号上执行SDVA以产生校正输出。通过使用校正输出替换先前输出开始处的符号来产生解码输出。

5. 发明授权

US08681742B2 MAC and TCP coordination approach for performance improvement in IEEE 802.16e mobile broadband access systems 有权
标题翻译： MAC和TCP协调方法，用于IEEE 802.16e移动宽带接入系统的性能改进
公开(公告)号：US08681742B2
公开(公告)日：2014-03-25
申请号：US13167228
申请日：2011-06-23
申请人： Guobin Sun , Hongfei Zhu , Yanling Yao
发明人： Guobin Sun , Hongfei Zhu , Yanling Yao
IPC分类号： H04W4/00 , H04J3/16 , H04W36/00
CPC分类号： H04L1/187 , H04L1/1607 , H04W36/0011
摘要： A mobile device includes a communications protocol stack including a MAC layer and TCP layer separated by an IP layer. A cross-layer coordination module parallel to the communications protocol stack is coupled to both the MAC layer and TCP layer. The MAC layer generates a message sent to the cross-layer coordination module indicating that the mobile device is about to engage in a communications handover from a first base station to a second base station. The cross-layer coordination module passes handover information to the TCP layer so as to inform the TCP layer of the communications handover. If the mobile device is operating as a TCP sender, the TCP layer freezes its connection and state during the communications handover. If the mobile device is operating as a TCP receiver, the TCP layer sends a TCP ACK message to a TCP sender having an advertised window size set to a zero value so as to cause the TCP sender to freeze a connection and state during communications handover.
摘要翻译：移动设备包括通信协议栈，其包括由IP层分隔的MAC层和TCP层。与通信协议栈并行的跨层协调模块耦合到MAC层和TCP层。 MAC层产生发送到跨层协调模块的消息，指示移动设备即将从第一基站到第二基站进行通信切换。跨层协调模块将切换信息传递给TCP层，以通知TCP层通信切换。如果移动设备作为TCP发送者运行，则TCP层在通信切换期间冻结其连接和状态。如果移动设备作为TCP接收器操作，则TCP层向广播窗口大小设置为零值的TCP发送器发送TCP ACK消息，以使TCP发送者在通信切换期间冻结连接和状态。

6. 发明授权

US07969946B2 MAC and TCP coordination approach for performance improvement in IEEE 802.16E mobile broadband access systems 有权
标题翻译： MAC和TCP协调方法，用于IEEE 802.16E移动宽带接入系统的性能改进
公开(公告)号：US07969946B2
公开(公告)日：2011-06-28
申请号：US12046246
申请日：2008-03-11
申请人： Hongfei Zhu , Yanling Yao , Guobin Sun
发明人： Hongfei Zhu , Yanling Yao , Guobin Sun
IPC分类号： H04W4/00 , H04W36/00 , H04J3/16
CPC分类号： H04L1/187 , H04L1/1607 , H04W36/0011
摘要： A mobile device includes a communications protocol stack including a MAC layer and TCP layer separated by an IP layer. A cross-layer coordination module parallel to the communications protocol stack is coupled to both the MAC layer and TCP layer. The MAC layer generates a message sent to the cross-layer coordination module indicating that the mobile device is about to engage in a communications handover from a first base station to a second base station. The cross-layer coordination module passes handover information to the TCP layer so as to inform the TCP layer of the communications handover. If the mobile device is operating as a TCP sender, the TCP layer freezes its connection and state during the communications handover. If the mobile device is operating as a TCP receiver, the TCP layer sends a TCP ACK message to a TCP sender having an advertised window size set to a zero value so as to cause the TCP sender to freeze a connection and state during communications handover.
摘要翻译：移动设备包括通信协议栈，其包括由IP层分隔的MAC层和TCP层。与通信协议栈并行的跨层协调模块耦合到MAC层和TCP层。 MAC层产生发送到跨层协调模块的消息，指示移动设备即将从第一基站到第二基站进行通信切换。跨层协调模块将切换信息传递给TCP层，以通知TCP层通信切换。如果移动设备作为TCP发送者运行，则TCP层在通信切换期间冻结其连接和状态。如果移动设备作为TCP接收机操作，则TCP层向广播窗口大小设置为零值的TCP发送方发送TCP ACK消息，以使TCP发送者在通信切换期间冻结连接和状态。

7. 发明申请

US20080225795A1 MAC AND TCP COORDINATION APPROACH FOR PERFORMANCE IMPROVEMENT IN IEEE 802.16E MOBILE BROADBAND ACCESS SYSTEMS 有权
标题翻译： IEEE 802.16E移动宽带接入系统性能改进的MAC和TCP协调方法
公开(公告)号：US20080225795A1
公开(公告)日：2008-09-18
申请号：US12046246
申请日：2008-03-11
申请人： Guobin Sun , Hongfei Zhu , Yanling yao
发明人： Guobin Sun , Hongfei Zhu , Yanling yao
IPC分类号： H04Q7/20
CPC分类号： H04L1/187 , H04L1/1607 , H04W36/0011
摘要： A mobile device includes a communications protocol stack including a MAC layer and TCP layer separated by an IP layer. A cross-layer coordination module parallel to the communications protocol stack is coupled to both the MAC layer and TCP layer. The MAC layer generates a message sent to the cross-layer coordination module indicating that the mobile device is about to engage in a communications handover from a first base station to a second base station. The cross-layer coordination module passes handover information to the TCP layer so as to inform the TCP layer of the communications handover. If the mobile device is operating as a TCP sender, the TCP layer freezes its connection and state during the communications handover. If the mobile device is operating as a TCP receiver, the TCP layer sends a TCP ACK message to a TCP sender having an advertised window size set to a zero value so as to cause the TCP sender to freeze a connection and state during communications handover.
摘要翻译：移动设备包括通信协议栈，其包括由IP层分隔的MAC层和TCP层。与通信协议栈并行的跨层协调模块耦合到MAC层和TCP层。 MAC层产生发送到跨层协调模块的消息，指示移动设备即将从第一基站到第二基站进行通信切换。跨层协调模块将切换信息传递给TCP层，以通知TCP层通信切换。如果移动设备作为TCP发送者运行，则TCP层在通信切换期间冻结其连接和状态。如果移动设备作为TCP接收机操作，则TCP层向广播窗口大小设置为零值的TCP发送方发送TCP ACK消息，以使TCP发送者在通信切换期间冻结连接和状态。

8. 发明申请

US20080182567A1 SLEEP MODE CONTROL FOR REAL-TIME SERVICES IN BROADBAND WIRELESS ACCESS COMMUNICATION SYSTEMS 有权
标题翻译：宽带无线接入通信系统实时服务休眠模式控制
公开(公告)号：US20080182567A1
公开(公告)日：2008-07-31
申请号：US12018821
申请日：2008-01-24
申请人： Hongfei Zhu , Yanling Yao , Guobin Sun
发明人： Hongfei Zhu , Yanling Yao , Guobin Sun
IPC分类号： H04M3/00 , H04M1/73
CPC分类号： H04W52/0216 , H04W28/24 , Y02D70/142 , Y02D70/146
摘要： Consideration of Quality of Service is taken into account during the establishment of a sleep cycle in a mobile station providing real-time services. Upon the mobile station's identification of a need for a real-time service to enter into sleep mode, a request conveying that need is sent to the base station. The base station replies with a start frame number and other sleep parameters. Thereafter the mobile station enters sleep mode comprising sleep intervals interleaved with listening intervals. To prevent transmission packets from being buffered at the mobile station for an excessive period of time due to attempts to transmit packets to the base station during a sleep interval, the length of the sleep interval is set so as not to exceed the maximum latency value reflecting the QoS of the real-time service negotiated during establishment of the real-time services.
摘要翻译：在提供实时服务的移动台建立睡眠周期期间，考虑服务质量。当移动台识别到需要进入睡眠模式的实时服务时，将需要的请求发送到基站。基站用起始帧号和其他睡眠参数进行回复。此后，移动台进入休眠模式，其包括与侦听间隔交错的睡眠间隔。为了防止在睡眠间隔期间由于尝试向基站发送分组而在移动台处被缓冲的传输分组过长的时间段，睡眠间隔的长度被设置为不超过反映在建立实时业务时协商的实时业务的QoS。

9. 发明授权

US08914081B2 Sleep mode control for real-time services in broadband wireless access communication systems 有权
标题翻译：宽带无线接入通信系统中实时业务的睡眠模式控制
公开(公告)号：US08914081B2
公开(公告)日：2014-12-16
申请号：US12018821
申请日：2008-01-24
申请人： Hongfei Zhu , Yanling Yao , Guobin Sun
发明人： Hongfei Zhu , Yanling Yao , Guobin Sun
IPC分类号： H04W52/02
CPC分类号： H04W52/0216 , H04W28/24 , Y02D70/142 , Y02D70/146
摘要： Consideration of Quality of Service is taken into account during the establishment of a sleep cycle in a mobile station providing real-time services. Upon the mobile station's identification of a need for a real-time service to enter into sleep mode, a request conveying that need is sent to the base station. The base station replies with a start frame number and other sleep parameters. Thereafter the mobile station enters sleep mode comprising sleep intervals interleaved with listening intervals. To prevent transmission packets from being buffered at the mobile station for an excessive period of time due to attempts to transmit packets to the base station during a sleep interval, the length of the sleep interval is set so as not to exceed the maximum latency value reflecting the QoS of the real-time service negotiated during establishment of the real-time services.
摘要翻译：在提供实时服务的移动台建立睡眠周期期间，考虑服务质量。当移动台识别到需要进入睡眠模式的实时服务时，将需要的请求发送到基站。基站用起始帧号和其他睡眠参数进行回复。此后，移动台进入休眠模式，其包括与侦听间隔交错的睡眠间隔。为了防止在睡眠间隔期间由于尝试向基站发送分组而在移动台处被缓冲的传输分组过长的时间段，睡眠间隔的长度被设置为不超过反映在建立实时业务时协商的实时业务的QoS。

10. 发明申请

US20110249559A1 MAC AND TCP COORDINATION APPROACH FOR PERFORMANCE IMPROVEMENT IN IEEE 802.16e MOBILE BROADBAND ACCESS SYSTEMS 有权
标题翻译： IEEE 802.16e移动宽带接入系统性能改进的MAC和TCP协调方法
公开(公告)号：US20110249559A1
公开(公告)日：2011-10-13
申请号：US13167228
申请日：2011-06-23
申请人： Guobin Sun , Hongfei Zhu , Yanling Yao
发明人： Guobin Sun , Hongfei Zhu , Yanling Yao
IPC分类号： H04W36/22
CPC分类号： H04L1/187 , H04L1/1607 , H04W36/0011
摘要： A mobile device includes a communications protocol stack including a MAC layer and TCP layer separated by an IP layer. A cross-layer coordination module parallel to the communications protocol stack is coupled to both the MAC layer and TCP layer. The MAC layer generates a message sent to the cross-layer coordination module indicating that the mobile device is about to engage in a communications handover from a first base station to a second base station. The cross-layer coordination module passes handover information to the TCP layer so as to inform the TCP layer of the communications handover. If the mobile device is operating as a TCP sender, the TCP layer freezes its connection and state during the communications handover. If the mobile device is operating as a TCP receiver, the TCP layer sends a TCP ACK message to a TCP sender having an advertised window size set to a zero value so as to cause the TCP sender to freeze a connection and state during communications handover.
摘要翻译：移动设备包括通信协议栈，其包括由IP层分隔的MAC层和TCP层。与通信协议栈并行的跨层协调模块耦合到MAC层和TCP层。 MAC层产生发送到跨层协调模块的消息，指示移动设备即将从第一基站到第二基站进行通信切换。跨层协调模块将切换信息传递给TCP层，以通知TCP层通信切换。如果移动设备作为TCP发送者运行，则TCP层在通信切换期间冻结其连接和状态。如果移动设备作为TCP接收机操作，则TCP层向广播窗口大小设置为零值的TCP发送方发送TCP ACK消息，以使TCP发送者在通信切换期间冻结连接和状态。

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