CN101079700B - 用在宽带码分多址通信系统中的用户设备、方法及设备 - Google Patents

用在宽带码分多址通信系统中的用户设备、方法及设备 Download PDF

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CN101079700B
CN101079700B CN2007101231408A CN200710123140A CN101079700B CN 101079700 B CN101079700 B CN 101079700B CN 2007101231408 A CN2007101231408 A CN 2007101231408A CN 200710123140 A CN200710123140 A CN 200710123140A CN 101079700 B CN101079700 B CN 101079700B
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code
control channel
shared control
scrambling
user equipment
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CN101079700A (zh
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史蒂芬·G·迪克
内德·伯劳齐
辛颂尧
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0066—Parallel concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/0013—Rate matching, e.g. puncturing or repetition of code symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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Abstract

一种用在宽带码分多址通信系统中的用户设备、方法及设备，利用一种讯息码，该讯息码被产生以扰频或解扰频关联于一特定用户的高速共享控制信道的数据。该特定用户设备的用户识别码包含L位。1/2速率卷积编码器利用1/2速率卷积码处理至少该用户识别码的位，用以产生所述讯息码。

Description

用在宽带码分多址通信系统中的用户设备、方法及设备
相关申请
本申请是申请日为2003年5月5日、申请号为03810259.5、题为“产生用于高速共享控制信道的用户识别专有扰频码的装置”的发明专利申请的分案申请。
技术领域
本发明是有关于无线通信系统。特别是，本发明是关于用于高速共享控制信道（HS-SCCH）的用户设备识别码（UE ID）特定扰频序列。
背景技术
对于宽带码分多址（W-CDMA）通信系统提出了高速下行分组存取（HSDPA）。这种高速下行分组存取（HSDPA）提供高下行数据速率，以支持多媒体服务。
为支持这种高速下行分组存取（HSDPA），高速共享控制信道（HS-SCCH）被加以使用。这些高速共享控制信道（HS-SCCH）是用以发送必要控制信息至用户设备（UE）。各个高速共享控制信道（HS-SCCH）具有两个部分，其分别称为第一部分（PART I）及第二部分（PART II）。第一部分（PART I）是承载用户设备（UE）需要的时间关键信息。该信息包括高速物理下行共享控制信道（HS-PDSCH）使用的信道化码集及调制类型，所述HS-PDSCH承载高速下行分组存取（HSDPA）有效负载。该信息是支持高速下行分组存取（HSDPA）所必要，因为高速下行分组存取（HSDPA）是使用自适应调制及编码（AMC）。
为取得第一部分（PART I）信息，各个高速下行分组存取（HSDPA）用户设备（UE）是监控至多四个高速共享控制信道（HS-SCCH）以取得其信息。特定用户设备（UE）的信息是利用其用户设备识别码（UE ID）特定扰频序列而与其它用户设备（UE）进行区别。该用户设备（UE）是利用其用户设备识别码（UE ID）特定扰频序列，处理各个监控的高速共享控制信道（HS-SCCH)，藉以侦测预计用于该用户设备（UE）的高速共享控制信道（HS-SCCH）。处理后，该用户设备（UE）决定：在哪一个高速共享控制信道（HS-SCCH）上，信息（如果有）是利用其扰频序列承载。UE对在其HS-SCCH的PART I上承载的信息解扰频。
直至最近，10位的用户设备识别码（UE ID）被用以做为该用户设备（UEID）特定扰频序列的基础。在这个例子中，该用户设备识别码（UE ID）被转换为40位扰频序列。为了将该10位用户设备识别码（UE ID）转换为该40位用户设备识别码（UE ID）特定扰频序列，该10位用户设备识别码（UEID）是利用Reed-Muller模块处理，用以产生32位讯息码。该产生的讯息码的前8位被重复附加至该32位讯息码的后面以产生40位讯息码。
虽然该用户设备识别码（UE ID）长度最好能够延伸至16个码片，然而，高速共享控制信道（HS-SCCH）依目前方法是使用10位用户设备识别码（UEID）。该用户设备识别码（UE ID）被转换为40位扰频序列。为了将该10位用户设备识别码（UE ID）转换为该40位扰频序列，该10位用户设备识别码（UE ID）是利用Reed-Muller模块处理以产生32位讯息码。该产生讯息码的前8位被重复附加于该32位讯息码的后面以产生40位讯息码。
为降低错误侦测的发生，对各个用户设备（UE ID）产生的扰频码间最好能够具有完善的区分。因此，扰频码最好能够利用交替方式产生。
发明内容
一种讯息码，其产生以扰频或解扰频关联于一特定用户的高速共享控制信道（HS-SCCH）的数据。该特定用户设备的用户识别码包括L位。1/2速率卷积编码器利用1/2速率卷积编码处理至少该用户识别码的位，以产生所述讯息码。
根据本发明的第一方面，提供一种宽带码分多址用户设备，包括：用于监控至少一个高速共享控制信道的装置；用于处理所述至少一个高速共享控制信道的第一部分并恢复来自第一部分的数据的装置，其中所述第一部分具有扰频码，并且该扰频码是通过刺穿48位扰频序列中的8位而产生的40位扰频序列，该48位扰频序列是通过对所述宽带码分多址用户设备的16位用户设备识别码和附加在所述宽带码分多址用户设备的16位用户设备识别码末端的8个零位进行1/2速率卷积编码而产生的。
根据本发明的第二方面，提供一种由宽带码分多址用户设备执行的方法，包括：监控至少一个高速共享控制信道；处理所述至少一个高速共享控制信道的第一部分并且恢复来自所述第一部分的数据，其中所述第一部分具有扰频码，并且所述扰频码是通过刺穿48位扰频序列中的8位而产生的40位扰频序列，所述48位扰频序列是通过对所述宽带码分多址用户设备的16位用户设备识别码和附加在所述宽带码分多址用户设备的16位用户设备识别码末端的8个零位进行1/2速率卷积编码而产生的。
根据本发明的第三方面，提供一种宽带码分多址基站，包括：输入端，被配置成接受包含L位的用户识别码；1/2速率卷积编码器，用于处理至少所述用户识别码的位，以产生用于对高速共享控制信道进行扰频的码；以及速率匹配块，用于在产生所述码之后刺穿位，其中速率匹配后的码与编码的数据混合并通过所述高速共享控制信道传输。
附图说明
图1A是用于产生与高速共享控制信道（HS-SCCH)的特定用户关联的讯息码的电路的优选图；
图1B是配合图1A使用的速率匹配模块的图；
图2A是用于产生与16位用户识别码关联的讯息码的电路的优选图；
图2B是配合图2A使用的速率匹配模块的图；
图3是利用UE ID特定扰频码的简化用户设备；
图4是利用UE ID特定扰频码的简化基站。
具体实施方式
虽然该优选实施例是配合本发明的优选应用详细说明，以用于第三代合伙人计划（3GPP）宽带码分多址（W-CDMA）通信系统的高速下行分组存取（HSDPA），本发明亦可以应用于其它类型的码分多址（CDMA)通信系统。图1A及图1B是表示用户设备识别码（UE ID）特定扰频序列的电路。长度L的用户设备识别码（UE ID）XUE被输入至该电路。长度L可以是任何长度，诸如：8位、10位、16位等等。该用户设备识别码（UE ID）XUE={XUE1，…，XUEL}被输入至l/2速率卷积编码器10，如图1A所示。随着该用户设备识别码（UE ID），额外位（诸如“0”）亦可以附加至该输入字符串的末端，用以延伸该输入字符串的长度以及相应地延伸该输出字符串的长度。使用1/2速率卷积编码器10可以在不同用户设备识别码（UE ID)产生的输出字符串之间，提供高标准的讯息码区分。另外，目前的第三代合伙人计划（3GPP）宽带码分多址（W-CDMA）通信系统是利用1/2速率卷积编码器10以完成前向误差校正（FEC）技术。因此，产生该卷积编码后的用户设备识别码（UEID）特定扰频序列并不需要利用额外硬件。编码后，基于该输出字符串的长度，速率匹配阶段12便可以被加入以刺穿位，用以取得想要的字符串长度。
图2A及图2B是表示用于长度16（L=16）的优选用户设备识别码（UEID）讯息码的优选用户设备识别码（UE ID）特定扰频序列的电路。该16位用户设备识别码（UE ID）XUE={XUE1，…，XUE16}，被输入至1/2速率卷积编码器14，并具有8个“0”位附加至该输入字符串的末端。因此，该输入字符串是XUE1，…，XUE16，0，0，0，0，0，0，0，0。该l/2速率卷积编码器14处理后，该输出讯息码是48位长度，即CUE＝{CUE1，…，CUE48}。
为了将该讯息码的长度降低至40位的优选长度，最好能够刺穿8个位。图2B是表示执行刺穿的速率匹配阶段16。速率匹配阶段16后，该扰频码的有效长度是40位。
图4是表示一简化用户设备，其利用用户设备识别码（UE ID）特定扰频码，对一高速共享控制信道（HS-SCCH）进行解扰频。该用户设备识别码（UE ID）扰频码是通过例如异或门18而与该接收高速共享控制信道（HS-SCCH）混合，用以恢复该编码的高速共享控制信道（HS-SCCH）数据。
图3是表示一简化基站，其利用用户设备识别码（UE ID）特定扰频码扰频编码的数据，用以在该高速共享控制信道（HS-SCCH）上进行传输。该编码的数据是通过例如异或门20而与特定用户的用户设备识别码（UE ID）扰频码混合。该扰频后的数据是用以产生该高速共享控制信道（HS-SCCH)，以传输至该特定用户。

Claims (5)

1.一种宽带码分多址用户设备，包括：
用于监控高速共享控制信道的装置；
用于处理所述高速共享控制信道的第一部分并恢复来自第一部分的数据的装置，其中所述第一部分具有扰频码，并且该扰频码是通过刺穿48位扰频序列中的8位而产生的40位扰频序列，该48位扰频序列是通过对所述宽带码分多址用户设备的16位用户设备识别码和附加在所述宽带码分多址用户设备的16位用户设备识别码末端的8个零位进行1/2速率卷积编码而产生的。
2.一种由宽带码分多址用户设备执行的方法，包括：
监控高速共享控制信道；
处理所述高速共享控制信道的第一部分并且恢复来自所述第一部分的数据，其中所述第一部分具有扰频码，并且所述扰频码是通过刺穿48位扰频序列中的8位而产生的40位扰频序列，所述48位扰频序列是通过对所述宽带码分多址用户设备的16位用户设备识别码和附加在所述宽带码分多址用户设备的16位用户设备识别码末端的8个零位进行1/2速率卷积编码而产生的。
3.一种宽带码分多址基站，包括：
输入端，被配置成接受包含L位的用户识别码；
1/2速率卷积编码器，用于处理至少所述用户识别码的位，以产生用于对高速共享控制信道进行扰频的码；以及
速率匹配块，用于在产生所述码之后刺穿位，其中速率匹配后的码与编码的数据混合并通过所述高速共享控制信道传输。
4.根据权利要求3所述的基站，其中所述用户识别码包括16位。
5.根据权利要求4所述的基站，其中所述速率匹配块被配置成在产生所述码之后刺穿8个位。
CN2007101231408A 2002-05-07 2003-05-05 用在宽带码分多址通信系统中的用户设备、方法及设备 Expired - Lifetime CN101079700B (zh)

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US37850902P 2002-05-07 2002-05-07
US60/378,509 2002-05-07
US37817002P 2002-05-13 2002-05-13
US60/378,170 2002-05-13
US10/187,640 2002-07-01
US10/187,640 US6973579B2 (en) 2002-05-07 2002-07-01 Generation of user equipment identification specific scrambling code for the high speed shared control channel
PCT/US2003/014205 WO2003096694A1 (en) 2002-05-07 2003-05-05 Generation of user equipment identification specific scrambling code for the high speed shared control channel

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CN200710093663.2A Expired - Lifetime CN101035254B (zh) 2002-05-07 2003-05-05 高速共享控制信道的用户设备识别码专有扰频讯息码的产生
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