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    • 2. 发明授权
    • Method for downlink channel state information feedback in multi-antenna multi-carrier multi-cell environment
    • 多天线多载波多小区环境中下行信道状态信息反馈的方法
    • US09237562B2
    • 2016-01-12
    • US13978755
    • 2012-01-10
    • Zeng YangMing DingLei HuangRenmao Liu
    • Zeng YangMing DingLei HuangRenmao Liu
    • H04L5/00H04W72/04H04W72/00H04W28/26H04W72/12H04W36/30H04W24/10H04W48/08
    • H04W72/0413H04J2211/005H04L5/0032H04L5/0053H04L5/0073H04L5/0078H04W24/10H04W28/26H04W36/30H04W48/08H04W72/005H04W72/04H04W72/042H04W72/1268
    • A method of resource allocation for Channel State Information (CSI) feedback is provided, which comprises the following steps of: configuring, for a User Equipment (UE), a CSI feedback mode for each of a plurality of coordinated cells; allocating feedback resources required for CSI feedback by the UE for each of the plurality of coordinated cells based on the configured feedback modes, such that the CSI feedbacks for different coordinated cells will not collide with each other within one sub-frame; and notifying the configured feedback modes and the allocated feedback resources to the UE. In addition, a method of Channel State Information (CSI) feedback is provided, which comprises the following steps of: receiving, at a User Equipment (UE), from a Base Station (BS) information on configured feedback modes and allocated feedback resources for CSI feedback for a plurality of coordinated cells; feeding, by the UE, the CSI of the plurality of coordinated cells back to the BS over the allocated feedback resources based on the configured feedback modes; and solving, when feedback types underlying different feedback modes collide with each other within one sub-frame, the collision based on a collision solution rule.
    • 提供了一种用于信道状态信息(CSI)反馈的资源分配方法,包括以下步骤:为用户设备(UE)配置用于多个协作小区中的每一个的CSI反馈模式; 基于所配置的反馈模式,为UE分配针对所述多个协作小区中的每一个的CSI反馈所需的反馈资源,使得针对不同协作小区的CSI反馈将不会在一个子帧内彼此冲突; 并将配置的反馈模式和分配的反馈资源通知给UE。 另外,提供了一种信道状态信息(CSI)反馈的方法,其包括以下步骤:在用户设备(UE)处从基站(BS)接收关于配置的反馈模式的信息和分配的反馈资源 针对多个协调小区的CSI反馈; 基于所配置的反馈模式,UE通过所分配的反馈资源将多个协作小区的CSI馈送回BS; 并且当基于不同反馈模式的反馈类型在一个子帧内相互碰撞时,解决基于碰撞解决规则的冲突。
    • 5. 发明授权
    • Joint coding method based on binary tree and coder
    • 基于二叉树和编码器的联合编码方法
    • US08989293B2
    • 2015-03-24
    • US13698372
    • 2011-09-01
    • Ming DingRenmao LiuZeng YangYongming LiangYingyu Zhang
    • Ming DingRenmao LiuZeng YangYongming LiangYingyu Zhang
    • H04B7/02H04B7/04H04L25/03
    • H04B7/0486H04B7/063H04B7/0639H04B7/0658H04L1/0029H04L1/0073H04L25/03898H04W72/0413
    • The present invention provides a method and a coder for jointly coding Pre-coding Matrix Index #1 (W1) and Rank Index (RI) for channel state information feedback of a double codebook precoding frame. In the present invention, it is determined whether Rank Index RI is more than 2; if the RI is no more than 2, a first half branch of a coding binary tree is used to represent joint coding of the RI and W1 when RI=1 and RI=2; if the RI is more than 2, a second half branch of the coding binary tree is used to represent remaining separate codings and/or joint codings when the RI is more than 2; and processing results of the above coding steps are output. The present invention may be applied to an equal-length coding or an unequal-length coding. The present invention has advantages such as easy implementation, lower signaling overhead etc., and may be suitable for an LTE-A/4G cellular communication system and a future 5G cellular communication system.
    • 本发明提供一种用于对双码本预编码帧的信道状态信息反馈共同编码预编码矩阵索引#1(W1)和秩索引(RI)的方法和编码器。 在本发明中,确定秩索引RI是否大于2; 如果RI不超过2,当RI = 1和RI = 2时,编码二叉树的前半分支用于表示RI和W1的联合编码; 如果RI大于2,则当RI大于2时,编码二叉树的第二半分支用于表示剩余的单独编码和/或联合编码; 并输出上述编码步骤的处理结果。 本发明可应用于等长编码或不等长编码。 本发明具有易于实现,较低的信令开销等优点,并且可适用于LTE-A / 4G蜂窝通信系统和未来的5G蜂窝通信系统。
    • 6. 发明授权
    • Information feedback method and user equipment
    • 信息反馈方法和用户设备
    • US08665797B2
    • 2014-03-04
    • US13497542
    • 2010-07-15
    • Ming DingRenmao LiuYongming LiangYingyu ZhangZeng Yang
    • Ming DingRenmao LiuYongming LiangYingyu ZhangZeng Yang
    • H04Q7/00H04H20/67
    • H04L25/0204H04B7/024H04B7/0626H04B7/063H04L5/0023H04L5/0035H04L25/03343H04L2025/03426H04L2025/03808
    • The present invention discloses an information feedback method. The method comprises steps of a serving cell and/or a user equipment determining a cooperating cell set participating multi-antenna-multi-cell cooperation, the cooperating cell set including the serving cell and non-serving cells, the user equipment and/or the serving cell selecting transmit-ports of the serving cell and non-serving cells according to the determined cooperating cell set, the user equipment obtaining channel state information of the selected transmit-ports, and the user equipment feeding back identification information and the channel state information of the selected transmit-ports. The present invention provides also a serving cell, a cooperative cell and a user equipment for feeding back the identification information and channel state information of the selected transmit-ports. The present invention has advantages of simple implementation and less signaling overhead.
    • 本发明公开了信息反馈方法。 该方法包括服务小区和/或用户设备确定参与多天线多小区协作的协作小区集合的步骤,所述协作小区组包括服务小区和非服务小区,用户设备和/ 根据所确定的协作小区集服务小区选择服务小区和非服务小区的发送端口,用户设备获取所选择的发送端口的信道状态信息,以及用户设备反馈识别信息和信道状态信息 的选择的发送端口。 本发明还提供一种服务小区,协作小区和用于反馈所选择的发送端口的标识信息和信道状态信息的用户设备。 本发明具有简单实现和较少信令开销的优点。
    • 7. 发明授权
    • Determining method for use in information feedback, base station, user equipment, and communications system
    • 用于信息反馈,基站,用户设备和通信系统的确定方法
    • US08442568B2
    • 2013-05-14
    • US12989030
    • 2009-04-24
    • Chen ChenRenmao LiuYongming LiangMing DingLei Huang
    • Chen ChenRenmao LiuYongming LiangMing DingLei Huang
    • H04Q7/20
    • H04L5/0037H04L1/0029H04L5/0094H04L25/0202
    • A subband determining method, a base station, user equipment, and a communications system are provided. The base station of the present invention finds the subband size on the basis of a system bandwidth and divides the system bandwidth into subbands. The base station further selects some subbands to form a subband set and assign the subband set to user equipment and notifies the user equipment of information about the subband set. The user equipment in turn finds its corresponding subband size and the number of subbands for use in feedback on the basis of the size of the assigned subband set. The user equipment further divides the subband set into its corresponding subbands on the basis of a result found and feeds back information about a predetermined number of subbands to the base station. The base station carries out optimization of its transmitter on the basis of the information.
    • 提供了子带确定方法,基站,用户设备和通信系统。 本发明的基站根据系统带宽求出子带大小,将系统带宽划分为子带。 基站进一步选择一些子带以形成子带集,并将子带集分配给用户设备,并向用户设备通知关于子带集的信息。 用户设备又根据所分配的子带集的大小来找到其对应的子带大小和用于反馈的子带的数量。 用户设备根据找到的结果进一步将子带组划分成其对应的子带,并将关于预定数量的子带的信息反馈给基站。 基站根据信息对发射机进行优化。
    • 8. 发明申请
    • RELAY COLLABORATIVE COMMUNICATION SYSTEM AND COMMUNICATION METHOD
    • 中继协调通信系统和通信方法
    • US20120015662A1
    • 2012-01-19
    • US13146956
    • 2010-02-02
    • Yingyu ZhangRenmao LiuLei HuangMing DingGuolin SunChen Chen
    • Yingyu ZhangRenmao LiuLei HuangMing DingGuolin SunChen Chen
    • H04W40/00
    • H04L1/1825H04B7/2606H04L1/0026H04L1/1812H04L2001/0097H04W40/12H04W72/0426H04W72/08H04W84/047Y02D70/1262Y02D70/1264Y02D70/142Y02D70/34Y02D70/449
    • The present invention provides a relay collaborative cellular mobile communication system and a communication method of the system. In the method, all relay stations or a base station and relay stations in a cell (i) measure all uplink signals such as uplink reference signals and random-access signals from user devices for obtaining reception qualities of uplink signals of the user devices at the sites and (ii) feed back measurement results to the base station. The base station determines a transmission route of a user device based on the measurement results. A site in a transmission route processes schedule control information and then transmits the information to the user device for performing, based on lumped scheduling of the base station, a downlink reception, an uplink transmission, an uplink retransmission, or a downlink retransmission. In an uplink HARQ mechanism, the site in the transmission route receives an uplink signal from the user device, feeds back an ACK to the user device, and transmits a processed uplink signal to the base station, or feeds back an NACK or an ACK to the base station. The base station judges, based on results of decoding and detecting transmitted data or feedback results from the sites in the transmission route, whether or not the current uplink transmission is successful or whether to adjust the uplink retransmission.
    • 本发明提供一种中继协作蜂窝移动通信系统和该系统的通信方法。 在该方法中,小区中的所有中继站或基站和中继站(i)测量来自用户设备的所有上行链路信号,例如上行链路参考信号和随机接入信号,以获得用户设备的上行链路信号的接收质量 站点和(ii)将测量结果反馈给基站。 基站基于测量结果来确定用户设备的传输路由。 传输路由中的一个站点处理调度控制信息,然后将该信息发送给用户设备,用于基于基站的集中调度,进行下行链路接收,上行链路传输,上行链路重传或下行链路重传。 在上行链路HARQ机制中,传输路由中的站点接收来自用户设备的上行链路信号,将ACK反馈到用户设备,并将经处理的上行链路信号发送到基站,或将NACK或ACK反馈给 基站。 基站根据传输数据的解码和检测结果,以及传输路由中的站点的反馈结果判断当前上行链路传输是否成功,还是调整上行链路重传。
    • 9. 发明申请
    • WIRELESS COMMUNICATIONS SYSTEM AND PRECODING METHOD
    • 无线通信系统和预测方法
    • US20110206154A1
    • 2011-08-25
    • US13126677
    • 2009-11-04
    • Ming DingRenmao LiuYingyu ZhangLei HuangChen ChenGuolin Sun
    • Ming DingRenmao LiuYingyu ZhangLei HuangChen ChenGuolin Sun
    • H04L1/02
    • H04B7/024H04B7/0413H04B7/0486H04B7/0632H04B7/0634H04B7/0639H04B7/086H04L1/0026H04L1/0029H04L1/0675H04L5/0023H04L5/0035H04L25/03343H04L25/03866H04L2025/03426H04L2025/03808
    • The present invention provides a precoding method for use in a wireless communications system. According to the precoding method of the present invention, a serving base station and cooperative communication base stations employ an identical precoding matrix so as to weight transmission signals and then transmit them. The weighting stands for multiplication of results of overall precoding or each layer precoding process by weight values at the serving base station and the cooperative communication base stations. A user device corresponding to the serving base station and the cooperative communication base stations receives a signal which is obtained by an operation in which the serving base station and the cooperative communication base stations perform an identical precoding process and additively combine results of overall precoding or each layer precoding process with one another. The user device feeds back information which includes (i) precoding matrix information for the serving base station and the cooperative communication base stations, (ii) weight vector information for either overall precoding or layer precoding, and (iii) a quantized value of channel quality. This feedback information is thus advantageous in that its signaling information amount is small.
    • 本发明提供一种在无线通信系统中使用的预编码方法。 根据本发明的预编码方法,服务基站和协作通信基站采用相同的预编码矩阵,以便对传输信号进行加权,然后发送它们。 加权表示在服务基站和协作通信基站处通过加权值对总预编码或每层预编码处理的结果进行乘法。 对应于服务基站和协作通信基站的用户设备接收通过其中服务基站和协作通信基站执行相同的预编码处理的操作而获得的信号,并且相加地组合整体预编码或每个 层预编码过程。 用户装置反馈信息,其包括(i)用于服务基站和协作通信基站的预编码矩阵信息,(ii)用于总体预编码或层预编码的加权矢量信息,以及(iii)信道质量的量化值 。 因此,该反馈信息的信令信息量小。
    • 10. 发明申请
    • METHOD FOR COOPERATIVE COMMUNICATIONS AMONG BASE STATIONS
    • 基站合作通信方法
    • US20110134875A1
    • 2011-06-09
    • US13057589
    • 2009-08-10
    • Ming DingRenmao LiuLei HuangChen ChenGuolin Sun
    • Ming DingRenmao LiuLei HuangChen ChenGuolin Sun
    • H04W72/04H04B7/24
    • H04B7/024H04B7/0632H04W72/042H04W72/12H04W76/15H04W92/20
    • A method for cooperative communications among base stations according to the present invention includes: a first step in which a serving base station determines whether a user device is in an mode of cooperative communications among the base stations; a second step in which the serving base station uses a downlink control signal to make configuration for the user device; a third step in which the user device obtains (i) system information regarding the serving base station and a cooperative communication base station indicated by configuration information received and (ii) channel state information; a fourth step in which the user device feeds back channel state information regarding downlink channels between the user device and the serving base station and between the user device and the cooperative communication base station; a fifth step in which the serving base station carries out resource scheduling and backhaul communications in accordance with the channel state information thus fed back; and a sixth step in which the user device receives an allocation instruction to allocate downlink resources.
    • 根据本发明的用于基站之间的协作通信的方法包括:第一步骤,其中服务基站确定用户设备是否处于基站之间的协作通信模式; 服务基站使用下行链路控制信号对用户装置进行配置的第二步骤; 第三步骤,其中用户设备获得(i)关于服务基站的系统信息和由接收的配置信息指示的协作通信基站和(ii)信道状态信息; 第四步骤,用户装置反馈关于用户装置与服务基站之间以及用户装置与协作通信基站之间的下行链路信道的信道状态信息; 第五步,服务基站根据反馈的信道状态信息进行资源调度和回程通信; 以及用户设备接收分配下行链路资源的分配指令的第六步骤。