CDMA communication system and method

专利名称：CDMA communication system and method发明人：Masayuki Ariyoshi,Nobukazu Doi,Tesshin

Shiga,Yoshito Ohta

申请号：US12480137申请日：20090608公开号：US07916699B2公开日：20110329

专利附图：

摘要：In CDMA communications, a base station detects a difference between areference phase of a spreading code and a phase of a received signal of each terminalstation, and feeds a phase jump signal PJ-i representative of the phase difference back to

each terminal station. After timing acquisition, the reception operation is performed usingthe reference phase, and a shift amount between the phase of a received signal and thereference phase is fed back to each terminal station as phase synchronization controlinformation PC-i. Each terminal station coarsely adjusts the phase of the spreading codein accordance with the phase jump signal PJ-i, and thereafter finely adjusts the phase ofits transmitting signal in accordance with the phase synchronization control informationPC-i. It is therefore possible to synchronize the phases of the signals transmitted fromterminal stations and received at the base station. Accordingly, an orthogonal code isused for spreading on the reverse links.

申请人：Masayuki Ariyoshi,Nobukazu Doi,Tesshin Shiga,Yoshito Ohta

地址：Mitaka JP,Hachioji JP,Kodaira JP,Tokorozawa JP

国籍：JP,JP,JP,JP

代理机构：Mattingly & Malur, P.C.

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