公开(公告)号：US20130102305A1

公开(公告)日：2013-04-25

申请号：US13713562

申请日：2012-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu ,  Rongdao Yu ,  Tao Wu

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04B7/024 ,  H04L1/0025 ,  H04L5/0037 ,  H04L5/0046 ,  H04L5/0073 ,  H04W24/10 ,  H04W36/18 ,  H04W48/20 ,  H04W52/40 ,  H04W72/08 ,  H04W72/1226 ,  H04W74/002

Abstract: Embodiments of the present invention disclose a wireless access method, device, and system. The method includes: sending pilot signal strength or channel characteristics to a central processing node, where the pilot signal strength or channel characteristics are fed back by a user terminal within the coverage area of a wireless access node and are between the wireless access node and the corresponding user terminal; receiving access indication information of the user terminal, which is fed back by the central processing node and is determined according to the pilot signal strength or channel characteristics, where the access indication information of the user terminal includes an identifier of the wireless access node connected with the user terminal and a corresponding coding and modulation scheme; and sending the identifier of the wireless access node connected with the user terminal and the corresponding coding and modulation scheme to the corresponding user terminal.

Abstract translation: 本发明的实施例公开了一种无线接入方法，设备和系统。 该方法包括：向中央处理节点发送导频信号强度或信道特性，其中导频信号强度或信道特性由无线接入节点的覆盖区域内的用户终端反馈，并且在无线接入节点与 相应的用户终端; 接收由中央处理节点反馈并根据导频信号强度或信道特性确定的用户终端的接入指示信息，其中用户终端的接入指示信息包括与无线接入节点连接的标识符 用户终端和相应的编码和调制方案; 并将与用户终端连接的无线接入节点的标识符和相应的编码和调制方案发送给相应的用户终端。

公开(公告)号：US20130083768A1

公开(公告)日：2013-04-04

申请号：US13622269

申请日：2012-09-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu ,  Rongdao Yu

IPC: H04W72/04

CPC classification number: H04L27/2636 ,  H03M7/3059

Abstract: Embodiments of the present invention disclose an RRU, which performs IDFT on a PUSCH signal that is obtained after resource block demapping, where due to a characteristic of an extremely low peak to average power ratio of SC-FDMA modulation, a signal after IDFT has an extremely low peak to average power ratio at this time, and an amplitude range of the signal changes slightly; amplitude/phase conversion is performed on the signal after the IDFT, where the signal after the IDFT is represented by using amplitude and phase, and then amplitude quantization and phase quantization are performed respectively to obtain a quantized amplitude signal and a quantized phase signal respectively.

Abstract translation: 本发明的实施例公开了一种RRU，其对资源块解映射之后获得的PUSCH信号执行IDFT，其中由于SCFT具有极低的峰值对平均功率比的特性，IDFT具有 此时的峰均功率比极低，信号的振幅范围略有变化; 对IDFT之后的信号执行幅度/相位转换，其中IDFT之后的信号通过使用幅度和相位来表示，然后分别执行幅度量化和相位量化以分别获得量化幅度信号和量化相位信号。