Apparatus and method for synchronization of uplink synchronous transmission scheme in a CDMA communication system
    4.
    发明授权
    Apparatus and method for synchronization of uplink synchronous transmission scheme in a CDMA communication system 有权
    CDMA通信系统中上行同步传输方案的同步装置及方法

    公开(公告)号:US07120132B2

    公开(公告)日:2006-10-10

    申请号:US09888914

    申请日:2001-06-25

    IPC分类号: H04B7/216 H04J3/06

    摘要: Disclosed is a method for synchronizing a scrambling code in a CDMA communication system including a UTRAN (UMTS Terrestrial Radio Access Network) and a plurality of user equipments (UEs), using orthogonal codes for identifying the UEs and a single scrambling code for identifying the UTRAN by the UEs, and employing an uplink synchronous transmission scheme (USTS) where the UEs synchronize frames of uplink dedicated physical channels (DPCHs) using the single scrambling code. The UEs receive a reference signal including reference time information provided from the UTRAN and transmit a random access channel (RACH) based on the reference time. The UTRAN receives the random access channels from the UEs to measure a propagation delay time (PD) of each random access channel signal from the UEs, and transmits a transmission time adjustment value calculated using the measured propagation delay time and a time offset τDPCH,n between a transmission time point of the reference signal and a transmission time point of a downlink DPCH. Each UE determines a transmission time of the uplink DPCH by receiving the transmission time adjustment value, and scrambles a message with the orthogonal code and a scrambling code generated at the reference time, at the transmission time so determined as to transmit the message over the uplink DPCH.

    摘要翻译: 公开了一种使用包括UTRAN(UMTS陆地无线电接入网)和多个用户设备(UE)的CDMA通信系统中的扰码进行同步的方法,使用用于识别UE的正交码和用于识别UTRAN的单个扰码 并且使用上行链路同步传输方案(USTS),其中UE使用单个扰码来同步上行链路专用物理信道(DPCH)的帧。 UE接收包括从UTRAN提供的参考时间信息的参考信号,并且基于参考时间发送随机接入信道(RACH)。 UTRAN从UE接收随机接入信道以测量来自UE的每个随机接入信道信号的传播延迟时间(PD),并且发送使用测量的传播延迟时间和时间偏移τ DPCH,n参考信号的传输时间点与下行链路DPCH的传输时间点之间。 每个UE通过接收传输时间调整值来确定上行链路DPCH的传输时间,并且在传输时刻在正确码和在参考时间产生的扰码进行加扰,从而确定为通过上行链路发送消息 DPCH。

    Method of providing site selection diversity in mobile communication system
    5.
    发明授权
    Method of providing site selection diversity in mobile communication system 有权
    在移动通信系统中提供站点选择多样性的方法

    公开(公告)号:US06757536B1

    公开(公告)日:2004-06-29

    申请号:US09722852

    申请日:2000-11-27

    IPC分类号: H04Q720

    CPC分类号: H04W36/18 H04B7/022

    摘要: There is provided a method of providing site selection diversity in a mobile communication system. If an active set is updated, the category of the old active set is compared with that of the updated active set. According to the comparison result, station (BS) identification (ID) codes are reassigned to base stations in the updated active base set. The reassigned BS ID codes are transmitted to the corresponding base stations and the category of the updated active set is transmitted to all the base stations of the updated active set.

    摘要翻译: 提供了一种在移动通信系统中提供站点选择分集的方法。 如果活动集更新,则将旧活动集的类别与更新的活动集的类别进行比较。 根据比较结果,将站(BS)识别(ID)码重新分配给更新的活动基站中的基站。 重新分配的BS ID码被发送到相应的基站,更新的活动集合的类别被发送到更新的活动集合的所有基站。

    Method of assigning an uplink random access channel in a CDMA mobile communication system
    9.
    发明申请
    Method of assigning an uplink random access channel in a CDMA mobile communication system 有权
    在CDMA移动通信系统中分配上行链路随机接入信道的方法

    公开(公告)号:US20070274278A1

    公开(公告)日:2007-11-29

    申请号:US09879651

    申请日:2001-06-12

    IPC分类号: H04B7/216

    摘要: Disclosed is an uplink random access procedure in an NB-TDD (Narrow Band Time Division Duplexing) system. To achieve an acknowledgement for data transmission from a UTRAN (UMTS Terrestrial Radio Access Network), a UE selects one of a plurality of sync codes by which the UTRAN identifies UEs that request data transmission and transmits the selected sync code in a time slot of a sub-frame to the UTRAN. Then, the UE receives the sync code information, information about the arrival time of the sync code, time update information indicating a variation in the transmission time of data, and power information indicating an adjustment to a power gain in the UE from the UTRAN on an FPACH (Fast Physical Access Channel). The UE transmits the data on a P-RACH (Physical Random Access Channel) mapped from the FPACH according to the time update information and the power information.

    摘要翻译: 公开了NB-TDD(窄带时分双工)系统中的上行链路随机接入过程。 为了实现对来自UTRAN(UMTS陆地无线电接入网络)的数据传输的确认,UE选择多个同步码中的一个,UTRAN通过该标识来识别请求数据传输的UE,并在所选择的同步码的时隙中发送所选择的同步码 子帧到UTRAN。 然后,UE接收同步码信息,关于同步码的到达时间的信息,指示数据的发送时间的变化的时间更新信息,以及表示UE中的来自UTRAN的功率增益的调整的功率信息, FPACH(快速物理访问频道)。 UE根据时间更新信息和功率信息,在从FPACH映射的P-RACH(物理随机接入信道)上发送数据。

    Method of assigning an uplink random access channel in a CDMA mobile communication system
    10.
    发明授权
    Method of assigning an uplink random access channel in a CDMA mobile communication system 有权
    在CDMA移动通信系统中分配上行链路随机接入信道的方法

    公开(公告)号:US07512086B2

    公开(公告)日:2009-03-31

    申请号:US09879651

    申请日:2001-06-12

    IPC分类号: H04Q7/20

    摘要: Disclosed is an uplink random access procedure in an NB-TDD (Narrow Band Time Division Duplexing) system. To achieve an acknowledgement for data transmission from a UTRAN (UMTS Terrestrial Radio Access Network), a UE selects one of a plurality of sync codes by which the UTRAN identifies UEs that request data transmission and transmits the selected sync code in a time slot of a sub-frame to the UTRAN. Then, the UE receives the sync code information, information about the arrival time of the sync code, time update information indicating a variation in the transmission time of data, and power information indicating an adjustment to a power gain in the UE from the UTRAN on an FPACH (Fast Physical Access Channel). The UE transmits the data on a P-RACH (Physical Random Access Channel) mapped from the FPACH according to the time update information and the power information.

    摘要翻译: 公开了NB-TDD(窄带时分双工)系统中的上行链路随机接入过程。 为了实现对来自UTRAN(UMTS陆地无线电接入网络)的数据传输的确认,UE选择多个同步码中的一个,UTRAN通过该标识来识别请求数据传输的UE,并在所选择的同步码的时隙中发送所选择的同步码 子帧到UTRAN。 然后,UE接收同步码信息,关于同步码的到达时间的信息,指示数据的发送时间的变化的时间更新信息,以及表示UE中的来自UTRAN的功率增益的调整的功率信息, FPACH(快速物理访问频道)。 UE根据时间更新信息和功率信息,在从FPACH映射的P-RACH(物理随机接入信道)上发送数据。