DE602008004885C5 - Sequenzverteilung, verarbeitungsverfahren sowie entsprechende vorrichtung in einem kommunikationssystem - Google Patents

Sequenzverteilung, verarbeitungsverfahren sowie entsprechende vorrichtung in einem kommunikationssystem Download PDF

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Publication number
DE602008004885C5
DE602008004885C5 DE602008004885.3T DE602008004885T DE602008004885C5 DE 602008004885 C5 DE602008004885 C5 DE 602008004885C5 DE 602008004885 T DE602008004885 T DE 602008004885T DE 602008004885 C5 DE602008004885 C5 DE 602008004885C5
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sequence
group
sequences
sub
smallest
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DE602008004885.3T
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DE602008004885D1 (de
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Bingyu Qu
Yujuan HE
Xuan FENG
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority claimed from CN2007101004495A external-priority patent/CN101262687B/zh
Priority claimed from CN 200710112774 external-priority patent/CN101262255B/zh
Priority claimed from CNA200710123676XA external-priority patent/CN101399793A/zh
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of DE602008004885D1 publication Critical patent/DE602008004885D1/de
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H04J13/0062—Zadoff-Chu
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/22—Allocation of codes with a zero correlation zone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
    • H04L23/02—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 adapted for orthogonal signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0041—Frequency-non-contiguous
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A method for processing sequences in a communication system, comprising: obtaining (201) a group number k of a sequence group allocated by the system, the sequence group being composed of multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting (202) n sequences from a candidate sequence collection to form sequences in a sub-group i in a sequence group k; the n sequences making a |ri/Ni – ck/Np1| function value the smallest, second smallest, till the nth smallest respectively; wherein n is a natural number, i is a serial number of the sub-group; wherein Np1 is the length of a reference sub-group sequence, ck is a basic sequence index of a sequence with a length of Np1 determined by the sequence group k; wherein ri is a basic sequence index in the candidate sequence collection, and Ni is the length of a sequence in the candidate sequence collection; generating (203) corresponding sequences according to the sequences in the formed sub-group; and transmitting or receiving the sequences on time frequency resources corresponding to the sub-group i, wherein the sequences are Zadoff-Chu sequences.

Description

Claims (8)

  1. A method for processing sequences in a communication system, comprising: obtaining (201) a group number k of a sequence group allocated by the system, the sequence group being composed of multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting (202) n sequences from a candidate sequence collection to form sequences in a sub-group i in a sequence group k; the n sequences making a |ri/Ni – ck/Np1| function value the smallest, second smallest, till the nth smallest respectively; wherein n is a natural number, i is a serial number of the sub-group; wherein Np1 is the length of a reference sub-group sequence, ck is a basic sequence index of a sequence with a length of Np1 determined by the sequence group k; wherein ri is a basic sequence index in the candidate sequence collection, and Ni is the length of a sequence in the candidate sequence collection; generating (203) corresponding sequences according to the sequences in the formed sub-group; and transmitting or receiving the sequences on time frequency resources corresponding to the sub-group i, wherein the sequences are Zadoff-Chu sequences.
  2. The method of claim 1, wherein n is 1; or n is a natural number dependent on k and i, or n is a value dependent on Ni and Np1, or n = ⌊Ni/Np1⌋, ⌊z⌋ represents a maximum integer not greater than z.
  3. The method of claim 1, wherein the function |ri/Ni – ck/Np1| varies between different sequence groups, or different sub-groups of one sequence group.
  4. The method of claim 1, further comprising: making ri the integer value of ck·Ni/Np1 rounded up or down, which makes the function |ri/Ni – ck/Np1| the smallest value.
  5. A method for allocating sequences in a communication system, comprising: selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the sequence group being composed of multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources, wherein n is a natural number, the n sequences making a |ri/Ni – ck/Np1| function value the smallest, second smallest, till the nth smallest respectively, wherein i is a serial number of the sub-group, k is a serial number of the sequence group, Np1 is the length of a reference sub-group sequence, ck is a basic sequence index of a sequence with a length of Np1 determined by the sequence group k; wherein ri is a basic sequence index in the candidate sequence collection, and Ni is the length of a sequence in the candidate sequence collection; allocating the sequence group to cells, users or channels, wherein: the sequences are Zadoff-Chu sequences.
  6. The method of claim 5, wherein n is 1; or n is a natural number dependent on k and i, or n is a value dependent on Ni and Np1, or n = ⌊Ni/Np1⌋, ⌊z⌋ represents a maximum integer not greater than z.
  7. A sequence processing apparatus, comprising: a sequence selecting unit, adapted to: obtain a group number k of a sequence group allocated by a system, the sequence group being composed of multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; and select n sequences from a candidate sequence collection to form sequences in a sub-group i in the sequence group k, wherein the n sequences make a |ri/Ni – ck/Np1| function value the smallest, second smallest, till the nth smallest respectively, wherein i is a serial number of the sub-group, k is a serial number of the sequence group, Np1 is the length of a reference sub-group sequence, ck is a basic sequence index of a sequence with a length of Np1 determined by the sequence group k; wherein ri is a basic sequence index in the candidate sequence collection, and Ni is the length of a sequence in the candidate sequence collection; a sequence processing unit, adapted to: generate corresponding sequences according to the sequences in the formed sub-group i, and process the sequences on time frequency resources corresponding to the sub-group i, wherein the sequences are Zadoff-Chu sequences.
  8. The sequence processing apparatus of claim 7, wherein: the sequence processing unit is a sequence transmitting unit adapted to generate the corresponding sequences according to the formed sequences and transmit the sequences on the corresponding time frequency resources; or the sequence processing unit is a sequence receiving unit adapted to generate the corresponding sequences according to the formed sequences and receive the sequences on the corresponding time frequency resources.
DE602008004885.3T 2007-03-07 2008-03-06 Sequenzverteilung, verarbeitungsverfahren sowie entsprechende vorrichtung in einem kommunikationssystem Active DE602008004885C5 (de)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
CN200710073057 2007-03-07
CN200710073057 2007-03-07
CN200710100449 2007-04-09
CN2007101004495A CN101262687B (zh) 2007-03-07 2007-04-09 序列分配方法与装置
CN200710103147 2007-04-27
CN200710103147 2007-04-27
CN200710112774 2007-06-17
CN 200710112774 CN101262255B (zh) 2007-03-07 2007-06-17 通信系统中的序列分配、处理的方法与装置
CN200710123676 2007-09-30
CNA200710123676XA CN101399793A (zh) 2007-09-30 2007-09-30 通信系统中的序列分配、处理的方法与装置
PCT/CN2008/070431 WO2008106894A1 (fr) 2007-03-07 2008-03-06 Procédé de distribution et de traitement de séquences et appareil dans un système de communication

Publications (2)

Publication Number Publication Date
DE602008004885D1 DE602008004885D1 (de) 2011-03-24
DE602008004885C5 true DE602008004885C5 (de) 2017-04-27

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US (8) US8249006B2 (de)
EP (1) EP2101419B1 (de)
KR (1) KR101095420B1 (de)
AT (1) ATE498249T1 (de)
DE (1) DE602008004885C5 (de)
DK (1) DK2101419T3 (de)
HR (1) HRP20110288T1 (de)
PL (1) PL2101419T3 (de)
PT (1) PT2101419E (de)
WO (1) WO2008106894A1 (de)

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US20090303960A1 (en) 2009-12-10
ATE498249T1 (de) 2011-02-15
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