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    • 31. 发明申请
    • COOPERATIVE MULTI-CELL TRANSMISSION METHOD
    • 合作多细胞传播方法
    • US20100039951A1
    • 2010-02-18
    • US12537807
    • 2009-08-07
    • Xiaoming SheJingxiu LiuLan Chen
    • Xiaoming SheJingxiu LiuLan Chen
    • H04W72/12H04L12/26H04J3/00
    • H04W72/1231H04B7/024H04W72/1278
    • The present invention provides a cooperative multi-cell transmission method that can be utilized to implement cooperative transmission in a virtual cell. Sectors composing the virtual cell are real cells and/or full sectors in real cells, any sector among the sectors composing the virtual cell is physically located adjacent to at least one of the other sectors, and each sector of the virtual cell corresponds to a real transmitting node respectively. The method includes: acquiring channel state information between any user and at least one of real transmitting nodes by a main information processing node; performing user scheduling and real transmitting node scheduling based on the channel state information by the main information processing node; and cooperatively transmitting data of one or more scheduled users based on the channel state information by one or more scheduled real transmitting nodes. The method according to an embodiment of the present invention reduces the interference and enhances the system spectral efficiency.
    • 本发明提供了可以用于在虚拟小区中实现协作传输的协作多小区传输方法。 组成虚拟小区的扇区是实际小区中的真实小区和/或完整扇区,构成虚拟小区的扇区中的任何扇区物理上位于与其他扇区中的至少一个相邻的位置,虚拟小区的每个扇区对应于真实小区 发送节点。 该方法包括:通过主信息处理节点在任何用户和至少一个实际发送节点之间获取信道状态信息; 基于主信息处理节点的信道状态信息执行用户调度和实际发送节点调度; 并且通过一个或多个调度的实际发送节点基于信道状态信息协同地发送一个或多个调度用户的数据。 根据本发明的实施例的方法减少了干扰并提高了系统频谱效率。
    • 32. 发明申请
    • METHOD, SYSTEM, BASE STATION, AND USER EQUIPMENT FOR DETERMINING DELAY VALUE OF CYCLIC DELAY DIVERSITY
    • 方法,系统,基站和用于确定周期延迟延迟值的用户设备
    • US20080132282A1
    • 2008-06-05
    • US11932271
    • 2007-10-31
    • Jingxiu LiuXiaoming SheLan Chen
    • Jingxiu LiuXiaoming SheLan Chen
    • H04M1/00
    • H04B7/0671H04B7/0456H04L1/0026H04L1/0675H04L5/0023H04L25/03898H04L27/2646
    • Methods, systems, BS and UE for determining Cyclic Delay Diversity delay value are disclosed. One method includes obtaining an optimal CDD delay value in the precoding codebook for obtaining the best channel quality on each sub-band respectively based on a result of channel estimation and feeding back to the BS by the UE; selecting an overall CDD delay value in the precoding codebook based on the local optimal CDD delay values received from each UE by the BS; updating the CDD delay values in the precoding codebook based on the overall CDD delay value in the precoding codebook by the BS. The invention provides provide a method for determining the CDD delay value (group) in precoding system with CDD, and a relating system, a base station, and a user equipment, to realize adaptive update of the CDD delay value (group), thereby ensuring the system performance to the most extent.
    • 公开了用于确定循环延迟分集延迟值的方法,系统,BS和UE。 一种方法包括:在预编码码本中获得最佳的CDD延迟值,用于分别基于信道估计的结果并且由UE反馈到BS来获得每个子带上的最佳信道质量; 基于由BS从每个UE接收的局部最佳CDD延迟值,在预编码码本中选择总体CDD延迟值; 基于BS在预编码码本中的总体CDD延迟值来更新预编码码本中的CDD延迟值。 本发明提供一种用于确定具有CDD的预编码系统中的CDD延迟值(组)的方法,以及相关系统,基站和用户设备,以实现CDD延迟值(组)的自适应更新,由此确保 系统性能在最大程度上。
    • 34. 发明授权
    • Method of scheduling uplink resources in cellular communication system
    • 蜂窝通信系统中上行资源的调度方法
    • US07890115B2
    • 2011-02-15
    • US11933952
    • 2007-11-01
    • Minghai FengXiaoming SheLan Chen
    • Minghai FengXiaoming SheLan Chen
    • H04W72/00
    • H04W72/082H04L27/2601H04W72/12
    • A method of scheduling resources in an uplink of a wireless cellular communication system, comprising the steps of measuring, by each user equipment in a present cell, pilot strengths of adjacent cells to find base stations within adjacent cells on which the user equipment has the strongest inter-cell interferences and to calculate values of the inter-cell interferences in an uplink direction which is caused by the user equipment on said base stations within said adjacent cells; grouping all user equipments within the present cell based on the calculated values of the inter-cell interferences; grouping used sub-carriers based on the groups of the user equipments so that each group of user equipments corresponds to one group of sub-carriers; allocating each group of sub-carriers to the user equipments included in the group of user equipments selected corresponding to the group of sub-carriers; and based on the allocation of the group of the sub-carriers, calculating a modified signal noise interference power ratio of each user equipment on the corresponding group of sub-carriers, and performing a multi-user equipment resource scheduling algorithm.
    • 一种在无线蜂窝通信系统的上行链路中调度资源的方法,包括以下步骤:由当前小区中的每个用户设备测量相邻小区的导频强度,以在用户设备具有最强的相邻小区内找到基站 并且计算由所述相邻小区内的所述基站上的用户设备引起的上行链路方向上的小区间干扰的值; 基于所计算的小区间干扰值,对本小区内的所有用户设备进行分组; 基于用户设备的组分组使用的子载波,使得每组用户设备对应于一组子载波; 将每个子载波组分配给包括在与该子载波组对应的所选择的用户设备组中的用户设备; 并基于子载波组的分配,对相应的子载波组计算每个用户设备的修改信号噪声干扰功率比,并执行多用户设备资源调度算法。
    • 35. 发明申请
    • METHOD FOR RESOURCE ALLOCATION, BASE STATION AND MOBILE COMMUNICATION TERMINAL
    • 资源分配方法,基站和移动通信终端
    • US20100138541A1
    • 2010-06-03
    • US12555724
    • 2009-09-08
    • Jianchi ZhuXiaoming SheLan Chen
    • Jianchi ZhuXiaoming SheLan Chen
    • G06F15/173
    • H04W28/06H04W72/0486
    • The present invention provides a method for resource allocation, a base station and a mobile communication terminal. The method includes: setting a persistent radio resource set and a complementary resource set pre-allocated to a terminal; determining a radio resource to be used according to the size of a packet to be transmitted by the terminal or the base station. According to one embodiment of the present invention, when a whole packet cannot be transmitted by using the pre-allocated persistent resource, the complementary resource can be allocated to the terminal so that the packet doesn't need to be divided, time delay is reduced, physical layer control information is decreased and the number of accommodated terminal users is increased. The present invention is applicable to any service in which packets arrive periodically, such as VoIP service and real-time service.
    • 本发明提供一种资源分配方法,基站和移动通信终端。 该方法包括:设置预先分配给终端的持久无线资源集和辅助资源集; 根据要由终端或基站发送的分组的大小来确定要使用的无线电资源。 根据本发明的一个实施例,当通过使用预先分配的持续资源不能发送整个分组时,可以向终端分配补充资源,使得分组不需要被划分,时间延迟减少 物理层控制信息减少,容纳终端用户的数量增加。 本发明适用于诸如VoIP服务和实时服务之类的定期到达的任何业务。
    • 36. 发明授权
    • Method and apparatus for transmitting/receiving MBMS based on hm
    • 基于hm发送/接收MBMS的方法和装置
    • US08462877B2
    • 2013-06-11
    • US12557356
    • 2009-09-10
    • Minghai FengXiaoming SheLan Chen
    • Minghai FengXiaoming SheLan Chen
    • H04L27/00H03C5/00
    • H04L27/3488H04L1/1893H04L27/183H04L2001/0098
    • The present invention relates to a method and apparatus for transmitting/receiving multimedia broadcast/multicast data. The method includes the steps of: receiving a check report returned from a receiver, determining whether the check report indicates there are both basic layer and enhanced layer data errors and if yes, exchanging the last two bits of the enhanced layer and the first two bits of the basic layer and modulating the data with a second constellation map and then transmitting the data; otherwise determining whether the check report indicates there is only the basic layer error, and modulating and transmitting the data according to the result of determination. The beneficial effects of the present invention are that the retransmission efficiency can be improved and the ratio of receiving the data correctly by the users at the cell center and at the cell border during the first retransmission is improved.
    • 本发明涉及一种用于发送/接收多媒体广播/组播数据的方法和装置。 该方法包括以下步骤:接收从接收器返回的检查报告,确定检查报告是否指示存在基本层和增强层数据错误,如果是,则将增强层的最后两位和前两位进行交换 并用第二星座图调制数据,然后发送数据; 否则确定检查报告是否指示仅存在基本层错误,并且根据确定结果调制和发送数据。 本发明的有益效果是可以提高重传效率,提高在第一次重传期间小区中心和小区边界处的用户正确接收数据的比例。
    • 37. 发明授权
    • Inter-cell interference coordination method and base station
    • 小区间干扰协调方法和基站
    • US08224252B2
    • 2012-07-17
    • US12796484
    • 2010-06-08
    • Minghai FengXiaoming SheLan ChenWenbo WangMugen PengDong LiangSong Zhu
    • Minghai FengXiaoming SheLan ChenWenbo WangMugen PengDong LiangSong Zhu
    • H04B15/00H04W24/00
    • H04W72/082H04W72/0406H04W92/20
    • An inter-cell interference coordination method comprises: measuring an interference over thermal noise of a first subcarrier resource block in an uplink direction and obtaining an interference over thermal noise measurement value by a first base station; judging whether a first high interference indicating message is received from a second base station when the interference over thermal noise measurement value is larger than a first preset threshold value by the first base station; sending an overload indicator message to the second base station which has sent the high interference indicating message or shielding the first subcarrier resource block by the first base station when the first high interference indicating message is received; and sending the overload indicator message to base stations to which all the neighboring cells belong by the first base station when the first high interference indicating message is not received. The overhead at X2 interface is reduced according to the present invention.
    • 小区间干扰协调方法包括:测量上行链路方向上的第一子载波资源块的热噪声干扰,并获得第一基站对热噪声测量值的干扰; 当所述第一基站的干扰超过热噪声测量值大于第一预设阈值时,判断是否从第二基站接收到第一高干扰指示消息; 当接收到所述第一高干扰指示消息时,向已经发送高干扰指示消息的第二基站或第一基站屏蔽第一子载波资源块的过载指示消息发送; 以及当没有接收到所述第一高干扰指示消息时,将所述过载指示符消息发送到所有相邻小区属于所述第一基站的基站。 根据本发明,X2接口的开销减小了。
    • 38. 发明授权
    • Pre-coding method for MIMO system and apparatus using the method
    • MIMO系统的预编码方法和使用该方法的装置
    • US07912141B2
    • 2011-03-22
    • US11875600
    • 2007-10-19
    • Xiaoming SheJingxiu LiuLan ChenKenichi Higuchi
    • Xiaoming SheJingxiu LiuLan ChenKenichi Higuchi
    • H04L1/02H04B7/02
    • H04L25/03343H04B7/0639H04B7/066H04L1/0675
    • A pre-coding method for a MIMO system and an apparatus using the same are described. In the method, a receiver determines a corresponding codebook from a multi-codebook including multiple codebooks according to a location of a resource block, selects a corresponding codeword index from the determined codebook and transmits the index to a transmitter; the transmitter determines the corresponding codebook from the multi-codebook including multiple codebooks according to the location of the resource block where transmission data is to be transmitted, selects a corresponding codeword from the determined codebook according to the codeword index and performs pre-coding for the transmission data with the selected codeword. The pre-coding is performed with the multi-codebook in the present invention, which increases a diversity of pre-coding matrixes, so dynamic fluctuation range of a equivalent channel is improved and thus the performance of multi-user scheduling is enhanced effectively.
    • 对MIMO系统的预编码方法及使用该MIMO系统的装置进行说明。 在该方法中,接收机根据资源块的位置从包括多个码本的多码本中确定相应的码本,从确定的码本中选择相应的码字索引,并将该索引发送给发射机; 发射机根据发送数据的资源块的位置根据码字索引从包含多个码本的多码本中确定相应的码本,根据码字索引从所确定的码本中选择一个相应的码字,并执行预编码 传输数据与选定的码字。 利用本发明的多码本进行预编码,这增加了预编码矩阵的分集,从而提高了等效信道的动态波动范围,从而有效地提高了多用户调度的性能。