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公开(公告)号：KR100434459B1
公开(公告)日：2004-06-05
申请号：KR1020000035793
申请日：2000-06-27
Applicant: 삼성전자주식회사
IPC: H04L1/18
CPC classification number: H04L1/0025 , H04L1/0002 , H04L1/1809 , H04L1/1812 , H04L1/1845 , H04L1/1877 , H04L1/20 , H04W28/06 , H04W74/04 , Y02D50/10
Abstract: 본 발명은 이동통신 시스템을 채널의 상태에 적응시키는 방식에 관한 것으로, 링크적응 방식과 ARQ 방식에서 패킷의 재전송을 선택적으로 요구하기 위한 방법 및 장치에 관한 것이다.
순방향 파일럿 채널에 대해 측정된 수신 전력 값이 제1 임계값보다 큰 경우 단말기는 현재 패킷을 복호화하여 패킷 에러를 검사한다. 검사결과 에러가 없는 경우에는 현재 패킷의 재전송을 정지시키고 에러가 있는 경우에는 현재 패킷의 재전송을 요구한다. 또한 수신 전력 값이 제2 임계값보다 작은 경우에는 현재 패킷의 전송을 포기하거나 현재 패킷을 처음부터 다시 전송할 것을 기지국에게 요구하며, 수신 전력 값이 제1 임계값보다 작거나 같고 제2 임계값보다 크거나 같은 경우에는 현재 패킷의 재전송을 요구한다.
이로써 본 발명은 채널의 처리율을 증가시키고 복호화와 에러 검사에 따른 전력낭비를 감소시킬 뿐만 아니라 귀환시간 감소에 따라 송신기의 기억장치 요구량도 감소시킬 수 있다.Abstract translation: 一种使移动电信系统适应信道条件的方法。 为了在链路自适应方案和ARQ（自动重复请求）方案中控制来自接入网络（AN）的数据分组的传输，接入终端（AT）将从AN接收到的前向导频信号的接收功率与 预定的第一阈值，如果接收功率大于第一阈值，则检查接收的时隙的数据分组中的差错，并且如果在数据中没有发现错误，则向AN发送请求终止数据分组的重传的信号 解码后的数据包。
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公开(公告)号：KR100605973B1
公开(公告)日：2006-07-28
申请号：KR1020000035792
申请日：2000-06-27
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W52/267 , H04W52/24 , H04W52/241 , H04W52/247
Abstract: Disclosed is a method for determining a forward data rate and a forward transmission power level in a mobile communication system. An access terminal measures a C/I of a forward pilot channel, determines a forward data rate by matching the measured C/I with a reference C/I, creates a difference between the measured C/I and the reference C/I as margin information, and transmits the determined forward data rate and margin information over a reverse transmission channel. Upon receipt of the forward data rate and margin information, an access network decreases a transmission power level by power corresponding to the margin information and performs forward transmission at the forward data rate at the decreased transmission power level.
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公开(公告)号：KR1020020004318A
公开(公告)日：2002-01-16
申请号：KR1020000038072
申请日：2000-07-04
Applicant: 삼성전자주식회사
IPC: H04B7/06
CPC classification number: H04B7/0686 , H04B7/0682
Abstract: PURPOSE: A transmit diversity method and apparatus for maximizing the transmit data throughput in an HDR(High Data Rate) system is provided to improve the forward data throughput in an HDR system. CONSTITUTION: A pilot channel, an FAB(Forward Activity Bit) channel, and an RAB(Reverse Activity Bit) channel, common channels for all the mobile stations, among the time division multiplexed channels are transmitted through both antennas at half power(S110). A traffic channel and an RPC(Reverse Power Control) channel, specific mobile station user channels, are transmitted through either of the two antennas according to AS(Antenna Selection) information received from the mobile station(S120).
Abstract translation: 目的：提供用于在HDR（高数据速率）系统中最大化发射数据吞吐量的发射分集方法和装置，以改善HDR系统中的前向数据吞吐量。 构成：时分复用信道中的导频信道，FAB（前向活动比特）信道和RAB（反向活动比特）信道，所有移动台的公共信道以半功率发送通过两个天线（S110） 。 根据从移动站接收的AS（天线选择）信息，通过两个天线中的任一个发送业务信道和RPC（反向功率控制）信道，特定的移动台用户信道（S120）。
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公开(公告)号：KR1020020000414A
公开(公告)日：2002-01-05
申请号：KR1020000035165
申请日：2000-06-24
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04L1/0027 , H04L1/0002 , H04L1/0025
Abstract: PURPOSE: A method and an apparatus for transmitting DRC(Data Rate Control) information in a communication system for fast data transmission are provided to transmit DRC information, reversely transmitted to determine the data rate of a downlink in an HDR(High Data Rate) system, only at a necessary point of time for scheduling. CONSTITUTION: An AT(Access Terminal) reads a DRI(DRC Request Indicator) bit transmitted through a downlink MAC(Media Access Control) channel(401) and judges whether the value of the DRI bit is "1"(402). If it is judged that the value of the DRI bit is "1", the AT measures the pilot C/I(Carrier to Interference ratio) of each available sector(403) and determines the largest C/I and the sector(404). Then the AT makes the largest C/I into a DRC symbol(405) and transmits the DRC symbol to an AN(Access Network)(406). Then the AT receives the next slot(407).
Abstract translation: 目的：提供用于在用于快速数据传输的通信系统中发送DRC（数据速率控制）信息的方法和装置，以发送DRC信息，以反向传输以确定HDR（高数据速率）系统中的下行链路的数据速率 ，只在必要的时间安排。 构成：AT（接入终端）读取通过下行链路MAC（媒体访问控制）信道（401）发送的DRI（DRC请求指示符）位，并判断DRI位的值是否为“1”（402）。 如果判断为DRI位的值为“1”，则AT测量每个可用扇区（403）的导频C / I（载波对干扰比），并确定最大的C / I和扇区（404） 。 然后，AT将最大的C / I变成DRC符号（405），并将DRC符号发送到AN（接入网络）（406）。 然后AT接收下一个时隙（407）。
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Patent Agency Ranking
公开(公告)号：KR100325248B1
公开(公告)日：2002-03-04
申请号：KR1019990034717
申请日：1999-08-20
Applicant: 삼성전자주식회사
IPC: H04B7/02
Abstract: 본발명은송신안테나다이버시티를사용하여이동통신시스템의채널통신방법이, 기지국이공통채널상의신호를적어도 2개의안테나를통하여제1 및제2기간에서교대로스위칭하여송신하는과정과, 상기안테나를통하여교대로스위칭되어진공통채널과사용자전용채널의시간관계를추정하는과정과, 이동국이상기안테나를통해수신된상기제1 및제2기간에대응하는신호들의수신전력을측정하는과정과, 상기이동국이상기제1기간에대응하는신호의전력과상기제2기간에대응하는신호의수신전력을비교하여수신전력이큰 쪽의안테나를선택하고, 상기선택된안테나를상기기지국에알려주는과정과, 상기기지국이상기선택된안테나로전용채널을송신하는과정으로구성된다.
Abstract translation: 目的：提供使用发射天线分集的电信系统中的信道通信设备和方法，以有效地使用没有用于公共信道的其他代码的有限码，以降低功耗并增强移动台的电容。 构成：使用发射天线分集的电信系统中的信道通信设备包括至少两个天线（A，B），公共信道发射机和专用信道发射机。 公共信道发射机通过天线在第一和第二周期中交替地切换公共信道数据，以发送它们。 专用信道发射机通过来自移动台的天线切换指示，将从专用天线选择的天线向前发送专用信道数据。
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公开(公告)号：KR100321979B1
公开(公告)日：2002-02-04
申请号：KR1019990010596
申请日：1999-03-26
Applicant: 삼성전자주식회사
Abstract: PURPOSE: An apparatus and a method for controlling powers of an orthogonal code spreading channel and a quasi-orthogonal code spreading channel in a CDMA(Code Division Multiple Access) communication system are provided to divide channel signals spread as inter-different codes, measure each SIR(Signal to Interference Ratio), and control the powers of the channels. CONSTITUTION: The first channel generator including the first channel encoder(11), the first interleaver(13), and a multiplier(15) spreads the first data as an orthogonal code and generates the first channel signal. The second channel generator including the second channel encoder(12), the second interleaver(14), and a multiplier(16) spreads the second data as a quasi-orthogonal code and generates the second channel signal. The first gain adjuster(17) adjusts a power gain of the first channel signal. The second gain adjuster(18) adjusts a power gain of the second channel signal. A spreader including an adder(20) and a multiplier(21) adds the first and second channel signals and spreads the added signal. The controller(19) controls the power gain values of the first and second gain adjusters(17,18).
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公开(公告)号：KR1020020004452A
公开(公告)日：2002-01-16
申请号：KR1020000038346
申请日：2000-07-05
Applicant: 삼성전자주식회사
IPC: H04B7/26
Abstract: PURPOSE: A forward power control apparatus and method in a mobile communication system simultaneously supporting a voice service and a high-speed data service are provided to support a voice service as well as a high-speed data service in a mobile communication system for a high-speed data transmission and to effectively perform forward power control. CONSTITUTION: A switch is connected with the first mapping device(1111) and the second mapping device(1113) through an encoder. A DRC(or EC/I) of 4bits outputted from the second mapping device(1113) by a period of 600/DRC_DIFF_RESET (Hz) unit is provided to the encoder according to a control signal of a higher level control unit(not shown). While a differential C/I information of 4 bits outputted from the first mapping device(1111) are provided to the encoder.
Abstract translation: 目的：提供一种同时支持语音服务和高速数据业务的移动通信系统中的正向功率控制装置和方法，用于支持移动通信系统中的语音服务以及高速数据业务 速度数据传输，并有效地执行正向功率控制。 构成：开关通过编码器与第一映射设备（1111）和第二映射设备（1113）连接。 根据上位控制单元（未示出）的控制信号，向编码器提供从第二映射设备（1113）输出的时间为600 / DRC_DIFF_RESET（Hz）单元的4位的DRC（或EC / I） 。 而从第一映射设备（1111）输出的4位差分C / I信息被提供给编码器。
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公开(公告)号：KR1020020002097A
公开(公告)日：2002-01-09
申请号：KR1020000036543
申请日：2000-06-29
Applicant: 삼성전자주식회사
IPC: H04J13/20 , H04W88/08 , H04B1/7103
CPC classification number: H04J13/18 , H04B1/707 , H04B1/76 , H04B7/2628 , H04B2201/7072 , H04J13/0022 , H04J13/0048
Abstract: PURPOSE: An apparatus and method for simultaneously supporting a voice service and a data service in a mobile communication system are provided to support both a voice service and a data service in the same frequency allocation range for the existing IS-2000 system and a high speed data transmission. CONSTITUTION: If there is a service request from a new user, an allocation manager initializes an internal variable 'num' AS '0'(511). The allocation manager compares the number of the current voice service users and the maximum number of voice service users and determines whether a Walsh orthogonal code is to be allocated to the new voice service user(513). If the number of the current voice service users computed on the assumption of addition of the new user is smaller than the maximum number of the voice service users, the allocation manger increases the value stored in the variable 'num' by '1'(515), or otherwise, moves a start point to the next slot(529). The allocation manager compares the increased variable value 'num' is identical to the number of the new user(517). If the variable 'num' is different from the number of new user, the allocation manager compares the number of voice service users when the two new users are added and the maximum number of voice service users(519). If the number of users when the two new users are added is smaller than the maximum number of voice service users, the allocation manager increases the stored variable 'num' by '1'(521). The allocation manager compares the increased variable value 'num' is identical to the number of the new users(523).
Abstract translation: 目的：提供一种用于在移动通信系统中同时支持语音服务和数据服务的装置和方法，以支持现有IS-2000系统的相同频率分配范围内的语音服务和数据服务，并且高速 数据传输。 构成：如果存在来自新用户的服务请求，则分配管理器初始化内部变量'num'AS'0'（511）。 分配管理器比较当前语音服务用户的数量和话音业务用户的最大数目，并确定是否将沃尔什正交码分配给新的话音业务用户（513）。 如果当前语音服务用户在添加新用户的情况下计算的数量小于语音服务用户的最大数量，则分配管理器将存储在变量'num'中的值增加'1'（515 ），否则，将起始点移动到下一个时隙（529）。 分配管理器比较增加的变量值'num'与新用户的数量相同（517）。 如果变量'num'不同于新用户数，则分配管理器将添加两个新用户时的语音业务用户数量和最大话音业务用户数（519）进行比较。 如果添加两个新用户的用户数小于语音服务用户的最大数量，则分配管理器将存储的变量'num'增加1（521）。 分配管理器比较增加的变量值'num'与新用户的数量相同（523）。
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公开(公告)号：KR1020020001299A
公开(公告)日：2002-01-09
申请号：KR1020000035792
申请日：2000-06-27
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W52/267 , H04W52/24 , H04W52/241 , H04W52/247
Abstract: PURPOSE: A link adaptation method and apparatus of a mobile communication system are provided to reduce an interference to a different sector and increase a forward system capacity by reducing a surplus transmission power, and to effectively use a power by controlling the power by continuously feedbacking a channel state of a forward link and be adaptive to the channel state. CONSTITUTION: A terminal(AT) measures a receiving C/I value for a forward pilot channel(S110), and searches the greatest value of critical values smaller than the measured receiving C/I value from a C/I table and makes it as a reference C/I value(S120). The terminal selects a data transfer rate corresponding to the reference C/I value from the C/I table as a receivable data transfer rate and makes the selected data transfer rate as a DRC symbol of 4 bits(S130). The terminal obtains a value by subtracting the reference C/I value from the receiving C/I value and makes it as a receiving C/I margin(S140). The terminal divides the receiving C/I margin into 16 levels and makes 4 bit C/I margin symbol, codes it like the 4 bit DRC symbol and transmits it to a base station(S150). The base station receives the DRC and the C/I margin system, decodes them, and transmits the decoded DRC to a scheduler of the base station and transmits the decoded C/I margin to a transmission amplifier of the base station(S160). The scheduler of the base station determines a terminal to be assigned a traffic channel of the next channel from the DRC and a data transfer rate of the terminal(S170). In transmitting a level of power to be transmitted to the determined terminal by the transmission amplifier of the station, a value obtained by reducing as much as the received C/I margin from a maximum power is determined as a transmission power level of the forward traffic channel(S180).
Abstract translation: 目的：提供一种移动通信系统的链路自适应方法和装置，以减少对不同扇区的干扰，并通过减少多余的发射功率来提高前向系统容量，并通过连续反馈 正向链路的信道状态，并适应信道状态。 构成：终端（AT）测量正向导频信道的接收C / I值（S110），并从C / I表搜索小于测量的接收C / I值的临界值的最大值，并将其作为 参考C / I值（S120）。 终端从C / I表中选择对应于参考C / I值的数据传输速率作为可接收数据传输速率，并将所选择的数据传输速率作为4位的DRC符号（S130）。 终端通过从接收C / I值减去参考C / I值并将其作为接收C / I余量来获得值（S140）。 终端将接收C / I边缘划分为16个级别，并使4位C / I边缘符号，将其编码为4位DRC符号并将其发送到基站（S150）。 基站接收DRC和C / I边缘系统，对它们进行解码，并将解码的DRC发送到基站的调度器，并将解码的C / I余量发送到基站的发送放大器（S160）。 基站的调度器确定要从DRC分配下一个信道的业务信道的终端和终端的数据传输速率（S170）。 在通过站的发送放大器发送要发送到所确定的终端的功率电平时，将从最大功率减少到接收到的C / I余量所获得的值确定为前向业务的发送功率电平 信道（S180）。
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