JP5274024B2 - 符号列及び無線局 - Google Patents
符号列及び無線局 Download PDFInfo
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- JP5274024B2 JP5274024B2 JP2007555574A JP2007555574A JP5274024B2 JP 5274024 B2 JP5274024 B2 JP 5274024B2 JP 2007555574 A JP2007555574 A JP 2007555574A JP 2007555574 A JP2007555574 A JP 2007555574A JP 5274024 B2 JP5274024 B2 JP 5274024B2
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- 239000011159 matrix material Substances 0.000 claims description 142
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
- H04J13/0048—Walsh
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Developing Agents For Electrophotography (AREA)
- Error Detection And Correction (AREA)
- Photoreceptors In Electrophotography (AREA)
- Radio Relay Systems (AREA)
- Detection And Correction Of Errors (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Description
Rl-041421 "E-HICH/E-RGCH Signature Sequences", Ericsson
Rl-041177, "Downiink Control Signaling", Ericssonalle von 3GPP, 3rd Generation Partnership Programm
前述のシグナリング・チャネルを効率的に実現することができる符号列又はシグネチャ・シーケンスのセットを提供することが、世界的規模での開発努力の目標である。
Z0 1 1 1 1
Z1 1 −1 1 −1
Z2 1 1 −1 −1
Z3 4 0 0 0
和 4 0 0 0
この行列は、第1の列では、列和(column sums)は4、それ以外では0である。
Z0 1 1 1 1
Z1* −1 1 −1 1
Z2 1 1 −1 −1
Z3 1 −1 −1 1
和 2 2 2 2
変わった行列は、全ての列内に和2を有している。この行列は、理想的にはシグナリング用である。と言うのは、行列の振幅は、送信時では、係数2だけ(4から2に)低減される。従って、送信電力は、係数4だけ又は6dBだけ低減される。その際、この低減された送信電力が屡々生じるという事実は、欠点ではない:つまり、送信器は、どんな場合でも、最大電力用に構成されている必要があり、その際、どの程度頻繁にこの電力が生じるかということは重要ではない。単に、冷却のために、付加的に平均電力が重要である。しかし、この平均電力は、両方の行列で同じである。この平均電力は、エネルギ保存則により、全ての行の(平均)電力の和に等しい。行が1に正規化されているので(乃至、一般性を制限せずに、行が1に正規化されていると仮定することができる)、平均電力は、4=2^2である(つまり、4=22である)。(正規化された)放射電力は、4行x4列x1=16である。従って、列和(column sums)の自乗和は、常に、行列要素の自乗和に等しく、この場合、16に等しい。
− 所謂ウィリアムソン・マトリックスとして、長さ20のアダマール行列C20を生成する際、アダマール行列C20は、以下のように生成することができる:
5x5行列 A C D
列和 −3 1 1
各行の各々全てのブロックが−1と乗算される場合(つまり、常に、各ブロックA,C乃至Dに属している順次連続する5個の行)、このブロック構造が得られる。この演算を、以下、「行ブロックを−1で乗算する」と呼ぶ。この問題は、以下、簡単に解き得る問題に格下げすることができる:
−行列の各行の交換
−行列の各列の交換
−全行列の各列又は各行の逆転
−各列の選択の、一定値−1との乗算、等。
周波数誤差での直交性特性に関しても、列和判定基準(上述)に関しても最適化された以下の符号列が特に適していることが分かった:
第1のパターン:
l, l, l, l, -l, l, -l, l, l, l, -l, -l, l, l, l, -l, l, -l, -l, -l, l, -l, -l, -l, -l, -l, -l, l, -l, -l, l, l, l, l, l, l, l, l, -l, -l
第2のパターン:
-l, -l, -l, -l, l, -l, l, -l, -l, -l, l, l, -l, -l, -l, l, -l, l, l, l, l, -l, -l, -l, -1-1, -l, l, -l, -l, l, l, l, l, l, l, l, l, -l, -l
その際、各パターンは各々、行列の相応の行が乗算される値(+1又は−1)を意味する。これらの値は、周波数最適化された行列の相応の行と乗算される。この行列は、最適化された行列であり、その際、各列の交換によって、相互相関の最大値を、周波数誤差の際にできる限り小さくすることが達成された。
図1は、アップリンク乃至ダウンリンク・コネクションの略図、
図2は、符号行列を示す図、
図3は、シミュレーション結果を示す図である。
長さnのアダマール行列を形成するステップ;
前記アダマール行列の各行を−1で乗算するステップ;
前記アダマール行列の各列を交換するステップ。
その際、C(s,i)は、送信側で用いられる符号列のi番目の要素を示し、C(e,i)は、受信側で使用される符号列のi番目の要素を示す。
Claims (12)
- 基地局として構成された請求項4または5記載の無線局。
- 加入者局が移動局として構成されている請求項4から6の何れか1記載の無線局。
- 移動局として構成された請求項8または9記載の無線局。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005006893A DE102005006893B4 (de) | 2005-02-15 | 2005-02-15 | Funkstation und Verfahren zur Übertragung von Daten |
DE102005006893.6 | 2005-02-15 | ||
PCT/EP2006/050677 WO2006087270A1 (de) | 2005-02-15 | 2006-02-06 | Codefolge und funkstation |
Publications (2)
Publication Number | Publication Date |
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JP2008530924A JP2008530924A (ja) | 2008-08-07 |
JP5274024B2 true JP5274024B2 (ja) | 2013-08-28 |
Family
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JP2007555574A Active JP5274024B2 (ja) | 2005-02-15 | 2006-02-06 | 符号列及び無線局 |
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---|---|
US (1) | US8542664B2 (ja) |
EP (1) | EP1849250A1 (ja) |
JP (1) | JP5274024B2 (ja) |
CN (1) | CN101120528B (ja) |
AR (1) | AR052375A4 (ja) |
CA (1) | CA2597656C (ja) |
DE (1) | DE102005006893B4 (ja) |
EA (1) | EA011917B1 (ja) |
MX (1) | MX2007008824A (ja) |
TW (1) | TWI379530B (ja) |
UA (1) | UA94577C2 (ja) |
WO (1) | WO2006087270A1 (ja) |
ZA (1) | ZA200704688B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101099323B (zh) * | 2004-11-10 | 2011-07-27 | 艾利森电话股份有限公司 | 用于减少码复用下行链路控制信道中的峰值功率的方法和设备 |
DE102005006893B4 (de) | 2005-02-15 | 2011-11-24 | Siemens Ag | Funkstation und Verfahren zur Übertragung von Daten |
EP2160858A4 (en) * | 2007-06-21 | 2012-06-27 | Korea Electronics Telecomm | METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEMS |
CN105706406B (zh) * | 2013-10-30 | 2019-07-26 | 三星电子株式会社 | 选择具有可变扩频因子的扩频序列的方法和*** |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577402A (en) | 1984-06-13 | 1986-03-25 | Penn Engineering & Manufacturing Corp. | Stud for mounting and method of mounting heat sinks on printed circuit boards |
US5151919A (en) | 1990-12-17 | 1992-09-29 | Ericsson-Ge Mobile Communications Holding Inc. | Cdma subtractive demodulation |
MY112371A (en) | 1993-07-20 | 2001-05-31 | Qualcomm Inc | System and method for orthogonal spread spectrum sequence generation in variable data rate systems |
US5721667A (en) | 1996-03-27 | 1998-02-24 | Siemens Energy & Automation, Inc. | Load center interior attachment |
US5969937A (en) | 1996-03-27 | 1999-10-19 | Siemens Energy & Automation, Inc. | Snap-on basepan system |
US6724741B1 (en) * | 1998-06-29 | 2004-04-20 | L-3 Communications Corporation | PN code selection for synchronous CDMA |
US6091760A (en) * | 1998-06-29 | 2000-07-18 | L-3 Communications Corporation | Non-recursively generated orthogonal PN codes for variable rate CDMA |
FR2785118B1 (fr) * | 1998-10-26 | 2004-06-18 | Cit Alcatel | Canal module d'acquisition et de poursuite pour un systeme de radiocommunications |
US6125378A (en) | 1999-01-13 | 2000-09-26 | Barbano; Paolo Emilio | Method and apparatus for generating families of code signals using multiscale shuffling |
FI107094B (fi) * | 1999-05-10 | 2001-05-31 | Nokia Mobile Phones Ltd | Menetelmä päivittää koodigeneraattorin lineaarinen palautesiirtorekisteri |
US6226184B1 (en) | 1999-10-22 | 2001-05-01 | Sun Microsystems, Inc. | Enclosure mounted heat sink |
CN101099323B (zh) * | 2004-11-10 | 2011-07-27 | 艾利森电话股份有限公司 | 用于减少码复用下行链路控制信道中的峰值功率的方法和设备 |
DE102005005696B4 (de) * | 2005-02-08 | 2014-05-28 | Siemens Aktiengesellschaft | Verfahren und Funkstation zur Übertragung von Daten |
DE102005006893B4 (de) | 2005-02-15 | 2011-11-24 | Siemens Ag | Funkstation und Verfahren zur Übertragung von Daten |
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2005
- 2005-02-15 DE DE102005006893A patent/DE102005006893B4/de active Active
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- 2006-02-06 MX MX2007008824A patent/MX2007008824A/es not_active Application Discontinuation
- 2006-02-06 EA EA200701747A patent/EA011917B1/ru unknown
- 2006-02-06 UA UAA200709280A patent/UA94577C2/ru unknown
- 2006-02-06 US US11/884,368 patent/US8542664B2/en active Active
- 2006-02-06 JP JP2007555574A patent/JP5274024B2/ja active Active
- 2006-02-06 CA CA2597656A patent/CA2597656C/en active Active
- 2006-02-06 CN CN200680004948.8A patent/CN101120528B/zh active Active
- 2006-02-06 EP EP06708025A patent/EP1849250A1/de not_active Withdrawn
- 2006-02-06 WO PCT/EP2006/050677 patent/WO2006087270A1/de active Application Filing
- 2006-02-10 TW TW095104548A patent/TWI379530B/zh active
- 2006-02-15 AR ARM060100529A patent/AR052375A4/es active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
CA2597656A1 (en) | 2006-08-24 |
EA011917B1 (ru) | 2009-06-30 |
MX2007008824A (es) | 2007-09-07 |
EA200701747A1 (ru) | 2007-12-28 |
CN101120528A (zh) | 2008-02-06 |
EP1849250A1 (de) | 2007-10-31 |
WO2006087270A1 (de) | 2006-08-24 |
TWI379530B (en) | 2012-12-11 |
US20080137617A1 (en) | 2008-06-12 |
JP2008530924A (ja) | 2008-08-07 |
UA94577C2 (ru) | 2011-05-25 |
AR052375A4 (es) | 2007-03-14 |
ZA200704688B (en) | 2008-09-25 |
CA2597656C (en) | 2014-07-08 |
TW200644462A (en) | 2006-12-16 |
US8542664B2 (en) | 2013-09-24 |
DE102005006893B4 (de) | 2011-11-24 |
DE102005006893A1 (de) | 2006-08-24 |
CN101120528B (zh) | 2012-12-12 |
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