Apparatus and method for randomly controlling time slot of sub-frame in an NB-TDD CDMA system
    1.
    发明授权
    Apparatus and method for randomly controlling time slot of sub-frame in an NB-TDD CDMA system 有权
    在NB-TDD CDMA系统中随机地控制子帧的时隙的装置和方法

    公开(公告)号:US07088688B2

    公开(公告)日:2006-08-08

    申请号:US10000214

    申请日:2001-11-02

    IPC分类号: H04J3/00

    CPC分类号: H04B7/2656 H04W72/0446

    摘要: An apparatus randomly assigns downlink sub-frame time slots for transmitting user data in an NB-TDD CDMA (Code Division Multiple Access) communication system. In the apparatus, a multiplexer creates a user data part by multiplexing user data for UEs (User Equipments), a TFCI (Transport Format Combination Indicator) symbol for the user data, and a TPC (Transmission Power Control command) symbol for controlling transmission power of a downlink channel, and a controller randomly assigns time slots for transmitting the user data part in the sub-frames, based on a time slot number initially assigned for the user data part, a sub-frame number at a transmission point of the user data part, and the number of assigned uplink time slots in the corresponding sub-frame.

    摘要翻译: 一种装置在NB-TDD CDMA(码分多址)通信系统中随机分配用于发送用户数据的下行子帧时隙。 在该装置中,多路复用器通过复用用户数据(用户设备)的用户数据,用户数据的TFCI(传输格式组合指示符)符号和用于控制传输功率的TPC(传输功率控制命令)符号来创建用户数据部分 并且控制器基于最初分配给用户数据部分的时隙号,随机地分配用于在子帧中发送用户数据部分的时隙,在用户的传输点处的子帧号 数据部分和相应子帧中分配的上行链路时隙的数量。

    Method of assigning an uplink random access channel in a CDMA mobile communication system
    2.
    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。

    Apparatus and method for measuring propagation delay in an NB-TDD CDMA mobile communication system
    3.
    发明授权
    Apparatus and method for measuring propagation delay in an NB-TDD CDMA mobile communication system 有权
    用于测量NB-TDD CDMA移动通信系统中的传播延迟的装置和方法

    公开(公告)号:US06956829B2

    公开(公告)日:2005-10-18

    申请号:US09989233

    申请日:2001-11-19

    摘要: Disclosed is a method for measuring a propagation delay value of a frame transmitted by a UE (User Equipment) to a Node B in a TDD (Time Division Duplexing) mobile communication system. The UE acquires synchronization with the Node B based on a downlink pilot channel signal transmitted in a period of a downlink pilot time slot, and determines an estimated round trip delay value T1 by comparing transmission power of a physical common channel signal in a first time slot with reception power of the same signal. The UE receives a transmission point correcting value T2 through a forward physical access channel (FPACH) signal transmitted from the Node B in a period of one downlink time slot among the time slots, and transmits a physical random access channel (PRACH) message with the estimated round trip delay value T1 at a transmission point determined based on T2 and T1.

    摘要翻译: 公开了一种用于在TDD(时分双工)移动通信系统中测量UE(用户设备)向节点B发送的帧的传播延迟值的方法。 UE基于在下行链路导频时隙的周期中发送的下行链路导频信道获取与节点B的同步,并且通过在第一时间内比较物理公共信道信号的发送功率来确定估计的往返延迟值T 1 时隙具有相同信号的接收功率。 UE通过在时隙中的一个下行链路时隙的周期内从节点B发送的前向物理接入信道(FPACH)信号接收发送点校正值T 2,并且发送具有 在基于T 2和T 1确定的传输点处的估计往返延迟值T 1。

    Method of assigning an uplink random access channel in a CDMA mobile communication system
    4.
    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。

    Apparatus and method for synchronization of uplink synchronous transmission scheme in a CDMA communication system
    9.
    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。