公开(公告)号：US07120132B2

公开(公告)日：2006-10-10

申请号：US09888914

申请日：2001-06-25

申请人： Sung-Ho Choi ,  Yong-Jun Kwak ,  Kook-Heui Lee ,  Hyun-Woo Lee ,  Seong-Ill Park ,  Ho-Kyu Choi

发明人： Sung-Ho Choi ,  Yong-Jun Kwak ,  Kook-Heui Lee ,  Hyun-Woo Lee ,  Seong-Ill Park ,  Ho-Kyu Choi

IPC分类号： H04B7/216 ,  H04J3/06

CPC分类号： H04W56/0005 ,  H04B1/707 ,  H04B1/7075

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。

公开(公告)号：US06885653B2

公开(公告)日：2005-04-26

申请号：US09764804

申请日：2001-01-17

申请人： Sung-Ho Choi ,  Chang-Soo Park ,  Jae-Yoel Kim ,  Seong-III Park ,  Ki-Ho Jung ,  Ho-Kyu Choi ,  Hyun-Woo Lee ,  Yong-Jun Kwak ,  Kook-Heui Lee

发明人： Sung-Ho Choi ,  Chang-Soo Park ,  Jae-Yoel Kim ,  Seong-III Park ,  Ki-Ho Jung ,  Ho-Kyu Choi ,  Hyun-Woo Lee ,  Yong-Jun Kwak ,  Kook-Heui Lee

IPC分类号： H04J13/04 ,  H04J11/00 ,  H04Q7/38 ,  H04E7/216

CPC分类号： H04J13/20 ,  H04J13/0044

摘要： Disclosed is a channel allocation method in a CDMA communication system. The method comprises receiving from a UTRAN one SF node CSF,k out of 2m−1 SF nodes (where m is an integer larger than 3) arranged in the form of a tree having a mother node and child nodes; searching a group including the received SF node CSF,k in accordance with Formula (1) below; spreading a signal on a dedicated physical data channel (DPDCH) with an OVSF code corresponding to a selected one of the received SF node and its child nodes in the searched group; and spreading a signal on a dedicated physical control channel (DPCCH) with an OVSF code corresponding to an SF node determined by Formula (2) below based on the received SF node. For ⁢   ⁢ SF ≤ 2 m - 1 4 , ( P 1 · SF , P 1 · k ) = ( 2 m - 1 4 , n ) ⁢ ⁢ For ⁢   ⁢ SF > 2 m - 1 4 , ( P 2 · 2 m - 1 4 , P 2 · n ) = ( SF , k ) ⁢ ⁢ where , P 1 = 2 m - 1 4 · SF ⁢   ⁢ and ⁢   ⁢ P 2 = 4 · SF 2 m - 1 . Formula (1) F ⁡ ( C 2 m - 1 4 · k ) = C 2 m - 1 ⁢ 2 m - 1 - k - 1 ⁢   ⁢ ( k = 0 , 1 , … ⁢   ) ⁢ ⁢ F ⁡ ( C 2 m - 1 4 · k ) = C 2 m - 1 , 2 m - 1 - ( k - 32 ) ⁢   ⁢ ( k = 0 , 1 , … ⁢   ) . Formula  (2)

公开(公告)号：US06859445B1

公开(公告)日：2005-02-22

申请号：US09611590

申请日：2000-07-07

申请人： Hi-Chan Moon ,  Jae-Min Ahn ,  Hyun-Seok Lee ,  Hee-Won Kang ,  Seong-III Park ,  Ho-Kyu Choi ,  Sung-Oh Hwang ,  Chang-Hoi Koo ,  Hyun-Woo Lee ,  Sung-Ho Choi ,  Jae-Yoel Kim ,  Hyun-Jung Mun ,  Kyou-Woong Kim

发明人： Hi-Chan Moon ,  Jae-Min Ahn ,  Hyun-Seok Lee ,  Hee-Won Kang ,  Seong-III Park ,  Ho-Kyu Choi ,  Sung-Oh Hwang ,  Chang-Hoi Koo ,  Hyun-Woo Lee ,  Sung-Ho Choi ,  Jae-Yoel Kim ,  Hyun-Jung Mun ,  Kyou-Woong Kim

IPC分类号： H04B7/005 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04W52/50 ,  H04W72/04 ,  H04W74/08 ,  H04W76/02

CPC分类号： H04W74/008 ,  H04B1/707 ,  H04B7/2637 ,  H04J13/0044 ,  H04J13/20 ,  H04W48/16 ,  H04W52/50 ,  H04W72/04 ,  H04W72/042 ,  H04W74/0833 ,  H04W74/0858

摘要： A common packet channel assignment method and device in a CDMA (Code Division Multiple Access) communication system is disclosed. The method comprises transmitting an access preamble signal having channel information which is used to access a base station, and then receiving an; access preamble acquisition indicator signal from the base station in response to the access preamble signal. A collision detection preamble for detecting a collision is transmitted in response to the received access preamble acquisition indicator signal. A first signal indicating acquisition of the collision detection preamble and a second signal indicating channel assignment are received, both of which the base station has transmitted in response to the collision acquisition signal. Upon receipt of the first signal, a common packet channel is assigned according to information designated by the second signal.

摘要翻译： 公开了CDMA（码分多址）通信系统中的通用分组信道分配方法和装置。 该方法包括发送具有用于接入基站的信道信息的接入前导信号，然后接收; 响应于所述接入前导信号从所述基站接入前导码获取指示符信号。 响应于接收到的接入前导码获取指示符信号，发送用于检测冲突的冲突检测前导码。 接收到指示获取冲突检测前导码的第一信号和指示信道分配的第二信号，基站都响应于冲突获取信号而发送。 在接收到第一信号时，根据由第二信号指定的信息分配公共分组信道。

公开(公告)号：US07065700B2

公开(公告)日：2006-06-20

申请号：US09814311

申请日：2001-03-21

申请人： Jae-Yoel Kim ,  Hyun-Woo Lee ,  Soon-Young Yoon ,  Hee-Won Kang ,  Ho-Kyu Choi

发明人： Jae-Yoel Kim ,  Hyun-Woo Lee ,  Soon-Young Yoon ,  Hee-Won Kang ,  Ho-Kyu Choi

IPC分类号： H03M13/03

CPC分类号： H04B1/707 ,  H04J13/10

摘要： There is provided an encoding apparatus and method in a CDMA communication system. To encode input information of a k-bit sequence and generate a codeword with length N>(2k−1), an encoder encodes the input information using an (r, k) simplex code and generates a sequence of code symbols of length r (r=2k−1), a repeater repeats the sequence of code symbols t times ( t = ⌊ N r ⌋ + 1 ) , and a puncturer performs puncturing A times (A=rt−N) on the t repeated code symbol sequences so that the resulting codes have length N. The punctured symbols are distributed uniformly across the repeated code symbol sequences or confined to the tth repeated code symbol sequence.

摘要翻译： 提供了一种CDMA通信系统中的编码装置和方法。 为了对k位序列的输入信息进行编码并生成长度为N>（2≤K≤1）的码字，编码器使用（r，k）单码进行编码，并产生 长度为r（r = 2K-1）的码符号序列，中继器重复码元序列t次