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    • 1. 发明申请
    • Radio resource mapping method
    • 无线电资源映射方法
    • US20110223954A1
    • 2011-09-15
    • US13129472
    • 2009-11-17
    • Yanfeng GuanXiangyu LiuYing LiuHuiying FangHongyun Qu
    • Yanfeng GuanXiangyu LiuYing LiuHuiying FangHongyun Qu
    • H04W72/04
    • H04L5/00H04L5/0007H04L5/0044H04L5/0064H04L27/2602
    • A resource mapping method is provided, in which a wireless communication system maps subcarriers to resource units through external permutation and internal permutation, the external permutation comprises: performing the first permutation on n physical resource units in every N1 physical resource units, orderly selecting n1×N1 physical resource units from the n physical resource units obtained from the first permutation, and then performing the second permutation on the remaining n−n1×N1 physical resource units in every N2 physical resource units, wherein n, N1, and N2 are all integers greater than or equal to 1, and N1 is not equal to N2, and n1 is an integer greater than or equal to 0. Frequency selectivity gain and frequency diversity gain may be achieved through the present invention by enabling a base station to select a proper resource scheduling granularity and resource unit types, thereby improving the spectrum efficiency of the future wireless communication system.
    • 提供了一种资源映射方法,其中无线通信系统通过外部置换和内部置换将子载波映射到资源单元,外部置换包括:在每个N1个物理资源单元中对n个物理资源单元执行第一置换,有序地选择n1× 从第一置换获得的n个物理资源单元的N1个物理资源单元,然后对每个N2个物理资源单元中的剩余的n-n1×N1个物理资源单元执行第二置换,其中n,N1和N2都是整数 大于或等于1,并且N1不等于N2,并且n1是大于或等于0的整数。频率选择性增益和频率分集增益可以通过本发明通过使基站能够选择适当的 资源调度粒度和资源单元类型,从而提高未来无线通信系统的频谱效率。
    • 2. 发明授权
    • Radio resource mapping method
    • 无线电资源映射方法
    • US08818436B2
    • 2014-08-26
    • US13129472
    • 2009-11-17
    • Yanfeng GuanXiangyu LiuYing LiuHuiying FangHongyun Qu
    • Yanfeng GuanXiangyu LiuYing LiuHuiying FangHongyun Qu
    • H04W72/00H04B7/00H04W4/00H04L5/00
    • H04L5/00H04L5/0007H04L5/0044H04L5/0064H04L27/2602
    • A resource mapping method is provided, in which a wireless communication system maps subcarriers to resource units through external permutation and internal permutation, the external permutation comprises: performing the first permutation on n physical resource units in every N1 physical resource units, orderly selecting n1×N1 physical resource units from the n physical resource units obtained from the first permutation, and then performing the second permutation on the remaining n−n1×N1 physical resource units in every N2 physical resource units, wherein n, N1, and N2 are all integers greater than or equal to 1, and N1 is not equal to N2, and n1 is an integer greater than or equal to 0. Frequency selectivity gain and frequency diversity gain may be achieved through the present invention by enabling a base station to select a proper resource scheduling granularity and resource unit types, thereby improving the spectrum efficiency of the future wireless communication system.
    • 提供了一种资源映射方法,其中无线通信系统通过外部置换和内部置换将子载波映射到资源单元,外部置换包括:在每个N1个物理资源单元中对n个物理资源单元执行第一置换,有序地选择n1× 从第一置换获得的n个物理资源单元的N1个物理资源单元,然后对每个N2个物理资源单元中的剩余的n-n1×N1个物理资源单元执行第二置换,其中n,N1和N2都是整数 大于或等于1,并且N1不等于N2,并且n1是大于或等于0的整数。频率选择性增益和频率分集增益可以通过本发明通过使基站能够选择适当的 资源调度粒度和资源单元类型,从而提高未来无线通信系统的频谱效率。
    • 7. 发明授权
    • Method for solving non-controllability of terminal's power spectrum density in OFDMA system
    • 解决OFDMA系统终端功率谱密度不可控性的方法
    • US08553642B2
    • 2013-10-08
    • US12667799
    • 2007-12-03
    • Qinji LiGang QiuShaogui LuYing LiuXiangyu LiuDengkui Zhu
    • Qinji LiGang QiuShaogui LuYing LiuXiangyu LiuDengkui Zhu
    • H04W72/04
    • H04L27/0008H04L1/0003H04L1/0009H04L1/0015H04L5/0007H04L5/0046H04L5/006H04L27/0012H04L27/2618H04W52/42
    • The present invention discloses a method for solving non-controllability of terminal's power spectrum density in OFDMA system. It considers the problem of non-controllability of terminal's carrier transmit power resulting from the indeterminacy of carrier number allocation to the terminal in the OFDMA system which is solved by introducing the maximum carrier number that can be allocated to the terminal by combing AMC, the power control and the dispatching. By applying the present invention, the carrier power of the terminal can be best controlled by the system, it is most possible for the terminal to transmit power on carrier completely according to a set value, while it is greatly reduced the possibility that the terminal's power spectrum density is suddenly decreased out of control, which is caused by the summation of carrier powers in the set value exceeding the maximum total transmit power. Moreover, it is avoided occurrence of a large amount of error codes in that condition and the waste of power resources resulting from the excessive restriction on the carrier power.
    • 本发明公开了一种解决OFDMA系统中终端功率谱密度不可控性的方法。 它考虑到OFDMA系统中对终端的载波号分配不确定性导致的终端载波发射功率的不可控性问题,通过引入可以通过组合AMC分配给终端的最大载波号解决,功率 控制和调度。 通过应用本发明,终端的载波功率可以由系统最好地控制,终端最可能根据设定值完全发送载波上的功率,同时大大降低了终端功率的可能性 频谱密度突然减少,这是由设定值中的载波功率的总和超过最大总发射功率引起的。 此外,避免了在这种情况下出现大量的错误代码以及由于对载波功率的过度限制而导致的功率资源的浪费。
    • 8. 发明申请
    • METHOD FOR SOLVING NON-CONTROLLABILITY OF TERMINAL'S POWER SPECTRUM DENSITY IN OFDMA SYSTEM
    • 解决OFDMA系统终端功率谱密度不可控性的方法
    • US20100215017A1
    • 2010-08-26
    • US12667799
    • 2007-12-03
    • Qinji LiGang QiuShaogui LuYing LiuXiangyu LiuDengkui Zhu
    • Qinji LiGang QiuShaogui LuYing LiuXiangyu LiuDengkui Zhu
    • H04W72/04
    • H04L27/0008H04L1/0003H04L1/0009H04L1/0015H04L5/0007H04L5/0046H04L5/006H04L27/0012H04L27/2618H04W52/42
    • The present invention discloses a method for solving non-controllability of terminal's power spectrum density in OFDMA system. It considers the problem of non-controllability of terminal's carrier transmit power resulting from the indeterminacy of carrier number allocation to the terminal in the OFDMA system which is solved by introducing the maximum carrier number that can be allocated to the terminal by combing AMC, the power control and the dispatching. By applying the present invention, the carrier power of the terminal can be best controlled by the system, it is most possible for the terminal to transmit power on carrier completely according to a set value, while it is greatly reduced the possibility that the terminal's power spectrum density is suddenly decreased out of control, which is caused by the summation of carrier powers in the set value exceeding the maximum total transmit power. Moreover, it is avoided occurrence of a large amount of error codes in that condition and the waste of power resources resulting from the excessive restriction on the carrier power.
    • 本发明公开了一种解决OFDMA系统中终端功率谱密度不可控性的方法。 它考虑到OFDMA系统中对终端的载波号分配不确定性导致的终端载波发射功率的不可控性问题,通过引入可以通过组合AMC分配给终端的最大载波号解决,功率 控制和调度。 通过应用本发明,终端的载波功率可以由系统最好地控制,终端最可能根据设定值完全发射载波上的功率,同时大大降低了终端功率的可能性 频谱密度突然减少,这是由设定值中的载波功率的总和超过最大总发射功率引起的。 此外,避免了在这种情况下出现大量的错误代码以及由于对载波功率的过度限制而导致的功率资源的浪费。
    • 9. 发明申请
    • SYSTEM AND METHOD FOR IMPLEMENTING MEDIA INTERACTION OF THE IPTV
    • 实现IPTV媒体互动的系统与方法
    • US20110197238A1
    • 2011-08-11
    • US13123214
    • 2008-12-30
    • Mujin LiXiangyu Liu
    • Mujin LiXiangyu Liu
    • H04N7/173
    • H04L65/1069H04L63/0428H04L65/4084H04L67/104H04L2463/101H04N21/2225H04N21/47202H04N21/632H04N21/8456
    • The present invention provides a method and a system for implementing media interaction of the IPTV. The method includes: a user terminal sending a request for a TVOD media file or a TSTV media file to a marginal stream media server in a marginal P2P area in which it resides; the marginal stream media server which is requested sending the first data block of a target media file to the user terminal; the user terminal playing the first data block of the target media file immediately after receiving the first data block of the target media file, at the same time, requesting a content delivery network agent in a P2P area of a terminal side in which the user terminal resides for an information list of content delivery network nodes capable of providing subsequent data blocks of the target media file; the content delivery network agent returning the information list of content delivery network nodes capable of providing the subsequent data blocks to the user terminal; the user terminal requesting to download and play the subsequent data blocks of the target media file. The present invention possesses advantages of high service quality, mitigating the pressure on the center stream media server and the marginal stream media server, and reducing the construction cost of the system
    • 本发明提供一种用于实现IPTV的媒体交互的方法和系统。 该方法包括:用户终端向其驻留的边缘P2P区域中的边缘流媒体服务器发送对TVOD媒体文件或TSTV媒体文件的请求; 被请求的边缘流媒体服务器将目标媒体文件的第一数据块发送到用户终端; 用户终端在接收到目标媒体文件的第一数据块之后立即播放目标媒体文件的第一数据块,同时请求终端侧的P2P区域中的内容传送网络代理,其中用户终端 驻留有能够提供目标媒体文件的后续数据块的内容传送网络节点的信息列表; 所述内容传送网络代理返回能够向所述用户终端提供后续数据块的内容传送网络节点的信息列表; 用户终端请求下载并播放目标媒体文件的后续数据块。 本发明具有服务质量高,减轻中心流媒体服务器和边缘流媒体服务器的压力,降低系统的建设成本