WO2008022503A1 - Procédé d'attribution d'une voie d'indicateur de reconnaissance de demande de répétition automatique dans un système d'accès multiple par répartition en code synchrone et répartition dans le temps (td-scdma ) - Google Patents

Procédé d'attribution d'une voie d'indicateur de reconnaissance de demande de répétition automatique dans un système d'accès multiple par répartition en code synchrone et répartition dans le temps (td-scdma ) Download PDF

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Publication number
WO2008022503A1
WO2008022503A1 PCT/CN2006/003814 CN2006003814W WO2008022503A1 WO 2008022503 A1 WO2008022503 A1 WO 2008022503A1 CN 2006003814 W CN2006003814 W CN 2006003814W WO 2008022503 A1 WO2008022503 A1 WO 2008022503A1
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WIPO (PCT)
Prior art keywords
spreading
sequence
channel
code
code sequence
Prior art date
Application number
PCT/CN2006/003814
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English (en)
Chinese (zh)
Inventor
Hu Liu
Hua Rui
Peng Geng
Yincheng Zhang
Hui Chen
Weiwei Yin
Original Assignee
Zte Corporation
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Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Publication of WO2008022503A1 publication Critical patent/WO2008022503A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to a time division synchronous code division multiple access system, and more particularly to a HSUPA (High Speed Uplink Packet) in a time division synchronous code division multiple access system.
  • the automatic retransmission response of Access indicates the channel implementation method.
  • BACKGROUND OF THE INVENTION In the third generation mobile communication system, in order to provide higher rate uplink packet services and improve spectrum utilization efficiency, 3GPP (3rd Generation Partnership Project) introduces high speed uplink packet access in specifications of WCDMA and TD-CDMA systems. (HSUPA: High Speed Uplink Packet Access) feature, that is, uplink enhancement.
  • HSUPA High Speed Uplink Packet Access
  • the HSUPA system is also known as the Uplink Enhancement System (E-DCH).
  • E-DCH Uplink Enhancement System
  • the physical layer of the HSUPA system introduces an E-PUCH physical channel for transmitting an E-DCH type CCTrCH (Coded Synthetic Transport Channel).
  • the newly introduced downlink signaling channel is an E-DCH absolute grant channel (E-AGCH: E-DCH absolute grant channel) and an E-DCH HARQ Acknowledgement indicator channel (E-HICH: E-DCH HARQ Acknowledgement indicator channel), where E- The AGCH is used to transmit the authorization information; the E-HICH is used to carry the uplink E-DCH HARQ indication information.
  • an automatic retransmission response indication channel implementation method for a time division synchronous code division multiple access system comprises the following steps:
  • the system generates a first spread spectrum sequence code; (2) The system selects its corresponding first spreading sequence code for the data confirmed by the link layer and performs the first time
  • the system modulates and superimposes the data obtained by the first spread spectrum, and performs super-spreading and scrambling of the superposed data on the channel;
  • the system arranges the data obtained by the second spread spectrum scrambling according to the set automatic retransmission response indication channel slot structure.
  • the first spreading code sequence includes a 20 X 20 Hadam code sequence ⁇ ij and a 4 X 4 quasi JE cross code sequence ll ll.
  • the first spreading code sequence comprises a 20 x 20 Hada code sequence and a 4 x 4 Hada code sequence.
  • the step (2) is specifically:
  • the step (2) is specifically:
  • the minimum code channel number where t Q is the minimum time slot number of the uplink enhanced dedicated channel where a h is, the r is the total sequence number of the first spreading code sequence, and the q is obtained by spreading the frequency of a h a sequence, the a h is data confirmed by the link layer, the h is an integer less than or equal to 24, and the C 3 is an ith row sequence in the 80 X 80 first spreading code sequence, the q It is the number of codes in the i-th row of the 80 X 80 first spreading code sequence, and the i is the row number of the lines required for spreading in the 80 X 80 first spreading code sequence.
  • the step (3) is specifically:
  • the system performs the four-phase phase shift keying signal modulation on all the data obtained by the first spreading; (32) the system performs weighted superposition of all the modulated data to obtain new data;
  • the system performs the second spreading and scrambling of the channel by the weighted superimposed data.
  • the h value is 8.
  • the set HICH time slot structure is: two symbols are arranged between the data symbol and the training sequence, and the two symbols are 32 chips.
  • FIG. 1 is a schematic diagram of an E-HICH frame structure of an HSUPA of a TD-SCDMA system according to the present invention
  • FIG. 2 is a flow chart of implementing an E-HICH channel of an HSUPA in a TD-SCDMA according to the present invention.
  • FIG. 1 it is a schematic diagram of an E-HICH frame structure according to the present invention.
  • the present invention adopts a channelization code of SF 16 , and has a maximum bit capacity of 88 bits.
  • 80 bits are used.
  • the first spreading code therefore, in order to reduce the interference of the first half of the data symbols Data symbols, the vacant 4 symbols (8 bits) are placed as GP bisects between the Midamble and the symbol data.
  • the first half data symbol and the second half data symbol all include 40 bits, that is, 320 chips; the training sequence includes 144 chips, and there are 32 chips between the training sequence and the symbol data.
  • the spreading code sequence used in the present invention has two modes: one is a construction method, and the construction method is constructed by using two code sets CI and C2, wherein C1 is a 20 X 20 Hadamard code matrix, and C2 is a 4 X 4 standard. Orthogonal code sequence. Table 1 and Table 2 are the CI and C2 code sequence sets, respectively.
  • Ci,9,k 1 1 0 1 0 1 1 1 1 1 0 0 1 0 0 1 1 1 0 0 0 0 1 1 0 0 0 0 0 0
  • Table 2 in Table 2, there are other expressions (such as Table 2a, Table 2b), and the exchange of ranks to produce a new C2, also has the above characteristics.
  • Table 2b Another method can use the CI 20 ⁇ 20 Hada code sequence and C4 is the 4 X 4 Hada code sequence for the Cartesian product.
  • the direct acquisition of the 80 X 80 first spreading code sequence, where 20 x 20 Hada code The sequence is Table 1, and the 4 x 4 Hada code sequence is Table 3.
  • the minimum E-DCH slot number occupied by the data for the kth UE, t. [0, ⁇ ⁇ ⁇ , 4];
  • the minimum code number, . [1 ' , 16].
  • the E-HICH channel oriented in TD-SCDMA HSUPA implementation process invention is h ⁇ data to a h, which corresponds to the h-th channel, the method according to the present invention comprises the steps of:
  • Another method of spreading is to set the ACK/NACK data of the E-DCH to first perform a krone product of CI and C4 to obtain a code sequence C3 of 80 x 80.
  • the invention realizes the function of the E-HICH code channel of the time division synchronous code division multiple access system by two-time spread spectrum, thereby achieving the advantages of saving the downlink channelization code resource and ensuring the UE has good reception performance, so that the E- The HARQ indication information of the DCH is efficiently and correctly received.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé pour la mise en oeuvre d'une voie d'indicateur de reconnaissance de demande de répétition automatique (E-HICH ) dans un système d'accès multiple par répartition en code synchrone et répartition dans le temps (TD-SCDMA). Ce procédé comprend les étapes suivantes, selon lesquelles un système génère des codes de séquences utilisés pour une première diffusion (101), il sélectionne des codes de séquences pour les données déterminées par une couche de liaison et il les diffuse dans un premier temps (101), il module et additionne les données qui ont été diffusées dans un premier temps (103, 104) et il diffuse dans un deuxième temps et brouille les données additionnées (105), le système dispose ensuite les données qui sont diffusées dans un second temps et brouillées suivant une structure définie d'intervalles temporels pour la voie d'indicateur de reconnaissance de demande de répétition automatique (106). Ce procédé permet d'assurer la réception correcte d'informations et de sauvegarder des ressources de la voie de liaison descendante.
PCT/CN2006/003814 2006-08-18 2006-12-31 Procédé d'attribution d'une voie d'indicateur de reconnaissance de demande de répétition automatique dans un système d'accès multiple par répartition en code synchrone et répartition dans le temps (td-scdma ) WO2008022503A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610111459.4 2006-08-18
CN2006101114594A CN101127535B (zh) 2006-08-18 2006-08-18 时分同步码分多址系统的自动重传应答指示信道实现方法

Publications (1)

Publication Number Publication Date
WO2008022503A1 true WO2008022503A1 (fr) 2008-02-28

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PCT/CN2006/003814 WO2008022503A1 (fr) 2006-08-18 2006-12-31 Procédé d'attribution d'une voie d'indicateur de reconnaissance de demande de répétition automatique dans un système d'accès multiple par répartition en code synchrone et répartition dans le temps (td-scdma )

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CN (1) CN101127535B (fr)
WO (1) WO2008022503A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017015831A1 (fr) * 2015-07-27 2017-02-02 华为技术有限公司 Procédé de transmission d'informations et appareil associé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101094045B (zh) * 2007-08-10 2012-07-04 中兴通讯股份有限公司 正确应答消息和/或错误应答消息的传输方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1437337A (zh) * 2002-02-09 2003-08-20 华为技术有限公司 适用于时分双工系统高速数据传输的信道时序分配方法
CN1604687A (zh) * 2003-08-16 2005-04-06 三星电子株式会社 用于上行链路分组传输的调度分配的方法和装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237330A1 (de) * 2002-08-14 2004-02-26 Siemens Ag Verbesserungen in einem Funk-Kommunikationssystem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1437337A (zh) * 2002-02-09 2003-08-20 华为技术有限公司 适用于时分双工系统高速数据传输的信道时序分配方法
CN1604687A (zh) * 2003-08-16 2005-04-06 三星电子株式会社 用于上行链路分组传输的调度分配的方法和装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017015831A1 (fr) * 2015-07-27 2017-02-02 华为技术有限公司 Procédé de transmission d'informations et appareil associé
US10645670B2 (en) 2015-07-27 2020-05-05 Huawei Technologies Co., Ltd. Method and device for instructing a user equipment to monitor a downlink information
US11350384B2 (en) 2015-07-27 2022-05-31 Huawei Technologies Co., Ltd. Method and device for instructing a user equipment to monitor a downlink information

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Publication number Publication date
CN101127535B (zh) 2012-01-11
CN101127535A (zh) 2008-02-20

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