公开(公告)号：US09020438B2

公开(公告)日：2015-04-28

申请号：US13624369

申请日：2012-09-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yinggang Du ,  Sheng Liu ,  Rui Wang

IPC: H04W72/04 ,  H04B7/02 ,  H04W16/32 ,  H04W72/12

CPC classification number: H04B7/024 ,  H04W16/32 ,  H04W72/1226 ,  H04W72/1289

Abstract: The present invention provides a data transmission method and system, where the method is used in a system architecture adopting a virtual heterogeneous network, where a macro base station covering a macro-cell and a pico base station covering a pico-cell share the same station address. The method includes the following step: sending control information and data information to user terminals in the macro-cell and the pico-cell according to location information of the user terminals so that the user terminals obtain the data information according to the control information. The system includes a sending module. The present invention implements joint scheduling of resources between a macro base station and a pico base station, reduces interference between cells, and maximally improves an overall data rate.

Abstract translation: 本发明提供一种数据传输方法和系统，其中该方法用于采用虚拟异构网络的系统架构中，其中覆盖宏小区的宏基站和覆盖微微小区的微微基站共享同一站 地址。 该方法包括以下步骤：根据用户终端的位置信息，向宏小区和微微小区中的用户终端发送控制信息和数据信息，使得用户终端根据控制信息获取数据信息。 系统包括发送模块。 本发明实现了宏基站和微微基站之间的资源的联合调度，减少了小区之间的干扰，并最大限度地提高了总体数据速率。

公开(公告)号：US20150071337A1

公开(公告)日：2015-03-12

申请号：US14540878

申请日：2014-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yinggang Du ,  Sheng Liu ,  Rui Wang

IPC: H04L1/00 ,  H04B1/10

CPC classification number: H04L1/0054 ,  H04B1/1027 ,  H04L25/03216 ,  H04L27/2649 ,  H04L27/38 ,  H04L2025/0342 ,  H04L2025/03426

Abstract: Embodiments of the present invention provide a method and device for demodulating data. The method includes: determining a number of reliable bits of each path of data in M paths of data and a modulation manner used to demodulate the reliable bits of each path of data, where M is a positive integer; demodulating the reliable bits of each path of data according to the modulation manner used to demodulate the reliable bits of each path of data; and demodulating residual bits in each path of data except the reliable bits according to a maximal likelihood ML algorithm. Compared with the prior art, it is unnecessary to demodulate all bits of each path of data according to the ML algorithm, thereby lowering the complexity of demodulation by using the ML algorithm.

Abstract translation: 本发明的实施例提供了一种用于解调数据的方法和装置。 该方法包括：确定M个数据路径中每条数据路径的可靠位数，以及用于解调数据路径的可靠位的调制方式，其中M为正整数; 根据用于解调每个数据路径的可靠位的调制方式解调每个数据路径的可靠位; 以及根据最大似然ML算法解调除可靠比特之外的每个数据路径中的残留比特。 与现有技术相比，不需要根据ML算法解调每个数据路径的所有比特，从而通过使用ML算法来降低解调的复杂度。

公开(公告)号：US08913528B2

公开(公告)日：2014-12-16

申请号：US13622292

申请日：2012-09-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hong Cheng ,  Sheng Liu ,  Yinggang Du ,  Rui Wang

IPC: H04B7/005 ,  H04J3/00 ,  H04B1/44

CPC classification number: H04L5/0062 ,  H04L5/0007 ,  H04L5/0073 ,  H04L5/14 ,  H04W72/082

Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.

Abstract translation: 本发明提供一种处理全双工干扰的方法和装置。 一种方法包括：获取当站点设备与至少两个UE进行全双工传输时引起的干扰程度; 以及根据所述干扰度确定允许在所述至少两个UE中的相同时间和频率资源上发送上行链路和下行链路信号的UE。 在本发明的实施例中，允许在相同时间和频率资源上发送上行链路和下行链路信号的UE可以根据当站点设备与至少两个UE进行全双工传输时引起的干扰程度进行分类，从而 尽可能地防止点对多点全双工通信情况下的干扰问题。

公开(公告)号：US08750890B2

公开(公告)日：2014-06-10

申请号：US13717155

申请日：2012-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04W16/28 ,  H04W16/32 ,  H04W72/046

Abstract: A microcell creating method based on macrocell network coverage and a base station are disclosed. The method may include setting a beam width and a beam direction of a highly directional antenna according to location information of a hotspot area, and generating microcell coverage or the hotspot area by using beams generated by the highly directional antenna. Embodiments of the present invention may keep the micro base station location unchanged when the hotspot area changes, and may implement microcell coverage for the hotspot area simply by adjusting the beam width and the beam direction of the highly directional antenna.

Abstract translation: 公开了一种基于宏小区网络覆盖的微小区创建方法和基站。 该方法可以包括根据热点区域的位置信息来设置高度定向天线的波束宽度和波束方向，并且通过使用由高度定向天线产生的波束来产生微小区覆盖或热点区域。 本发明的实施例可以在热点区域变化时保持微基站位置不变，并且可以通过调整高度定向天线的波束宽度和波束方向来实现热点区域的微小区覆盖。

公开(公告)号：US20130279452A1

公开(公告)日：2013-10-24

申请号：US13924126

申请日：2013-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu

IPC: H04W72/12

CPC classification number: H04W72/1268 ,  H04L5/003 ,  H04L27/2626 ,  H04L27/2647 ,  H04W28/16 ,  H04W88/085

Abstract: Embodiments of the present invention disclose a central baseband processing unit (CBPU), including a switching module and at least one base band unit (BBU) and further including a resource mapping module. The resource mapping module is configured to perform resource block demapping for uplink frequency domain baseband signals obtained through Fast Fourier Transform (FFT) and demultiplex signals of each user from corresponding subcarriers. The switching module is configured to transmit the signals of each user to the corresponding BBU, and the BBU is configured to process the received user signals. Correspondingly, embodiments of the present invention also disclose a remote RF unit (RRU) and a frequency domain transmission method. The technical solution provided in the present invention can improve transmission performance of a C-RAN system.

Abstract translation: 本发明的实施例公开了一种包括交换模块和至少一个基带单元（BBU）的中央基带处理单元（CBPU），并且还包括资源映射模块。 资源映射模块被配置为对通过快速傅立叶变换（FFT）获得的上行链路频域基带信号和从相应副载波分别解码每个用户的解复用信号进行资源块解映射。 交换模块被配置为将每个用户的信号发送到对应的BBU，并且BBU被配置为处理接收到的用户信号。 相应地，本发明的实施例还公开了远程RF单元（RRU）和频域传输方法。 本发明提供的技术方案可以提高C-RAN系统的传输性能。

公开(公告)号：US20130176967A1

公开(公告)日：2013-07-11

申请号：US13781038

申请日：2013-02-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu

IPC: H04W48/18

CPC classification number: H04W48/18 ,  H04W88/06

Abstract: A method for establishing communication between a wireless access network and a terminal includes determining a selection strategy of a wireless access network for establishing communication with a terminal; selecting the wireless access network for establishing communication with the terminal according to the determined selection strategy; and establishing communication between the terminal and the wireless access network according to the signal types supported by the wireless access network and the terminal.

Abstract translation: 一种建立无线接入网与终端之间的通信的方法，包括：确定无线接入网的选择策略，以建立与终端的通信; 根据确定的选择策略，选择无线接入网络与终端建立通信; 以及根据由无线接入网络和终端支持的信号类型，建立终端与无线接入网之间的通信。

公开(公告)号：US20130170353A1

公开(公告)日：2013-07-04

申请号：US13779296

申请日：2013-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sheng Liu

IPC: H04W28/02

CPC classification number: H04W28/0289 ,  H04W72/0486 ,  H04W88/085

Abstract: A method for transmitting baseband signals is disclosed. The method includes: when downlink traffic volume in an area among areas covered by multiple remote radio frequency units RRUs is lower than a preset threshold, generating or receiving a group of downlink baseband signals, where the group of downlink baseband signals corresponds to all RRUs in the area; and transmitting the group of downlink baseband signals to each RRU in the area, so that each RRU generates downlink radio frequency signals based on the downlink baseband signals and sends the downlink radio frequency signals. Accordingly, the embodiments of the present invention further disclose a method for transmitting baseband signals and a BBU. With the technical solutions, the bandwidth for transmitting baseband signals is greatly lowered, implementation is easy, and complexity of a system is reduced.

Abstract translation: 公开了一种发送基带信号的方法。 该方法包括：当由多个远程射频单元RRU覆盖的区域中的区域中的下行链路业务量低于预设阈值时，生成或接收一组下行链路基带信号，其中下行链路基带信号组对应于所有RRU 该地区 并将该组下行链路基带信号发送到该区域中的每个RRU，使得每个RRU基于下行链路基带信号生成下行链路射频信号，并发送下行链路射频信号。 因此，本发明的实施例还公开了一种用于发送基带信号和BBU的方法。 通过技术方案，传输基带信号的带宽大大降低，实现容易，降低了系统的复杂度。

公开(公告)号：US20130121282A1

公开(公告)日：2013-05-16

申请号：US13731132

申请日：2012-12-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sheng Liu

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04L47/125 ,  H04W28/0231 ,  H04W28/08 ,  H04W76/16 ,  H04W88/16

Abstract: A method, system, and device for radio network aggregation are applied in communication technologies. The method for radio network aggregation transmission includes: obtaining location information of a user equipment on at least two radio networks; obtaining, according to the location information, network load information of each radio network where the user equipment is currently located; determining, according to the network load information and a preset policy, a way in which data streams of the user equipment are transmitted by using the at least two radio access technologies; and transmitting the data streams of the user equipment in the determined way. Thereby, radio network aggregation is implemented.

Abstract translation: 通信技术应用无线网络聚合的方法，系统和设备。 无线网络聚合传输方法包括：在至少两个无线网络上获取用户设备的位置信息; 根据位置信息获取用户设备当前所在的每个无线网络的网络负载信息; 根据所述网络负载信息和预设策略，确定通过使用所述至少两个无线接入技术发送所述用户设备的数据流的方式; 以确定的方式发送用户设备的数据流。 从而实现无线网络聚合。