TWM240734U - User equipment calculating CDMA system transmission matrix coefficient - Google Patents
User equipment calculating CDMA system transmission matrix coefficient Download PDFInfo
- Publication number
- TWM240734U TWM240734U TW092211534U TW92211534U TWM240734U TW M240734 U TWM240734 U TW M240734U TW 092211534 U TW092211534 U TW 092211534U TW 92211534 U TW92211534 U TW 92211534U TW M240734 U TWM240734 U TW M240734U
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- Prior art keywords
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- response
- real
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
-
- 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
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- 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
- H04L25/0212—Channel estimation of impulse response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70707—Efficiency-related aspects
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Complex Calculations (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Radio Relay Systems (AREA)
- Communication Control (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Error Detection And Correction (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radio Transmission System (AREA)
Description
M240734 五、創作說明(ίο) 憶體的位元寬度溢位。如圖6 A所示,較佳者,二暫存器R1 及R2被用以暫時緩衝第二頻道(ah_out_real)的貢獻。 圖6B處理頻道的虛貢獻。如果SCTD被支援,第一碼的 需部貢獻被稱為811_8 0^(1_〇111:_:111188及第二碼 ah_out_imag。如果SCTD未被支援,則不出現 ah —sctd_out_i mag ° ah—sctd一out一 imag 為多工器 M4 之一輸 入。其它輸入被設定為0(0x0)。如果SCTD被支援(sctd_on & second一channel 位一個1),ah一sctd — out —imag 通過加法 Is A1 0 0。如果S C T D未被支援,傳送〇至加法器 A1 0 1。ah 一out—imag也被輸入加法器A1 0 1以產生二頻道的 需部組合的貢獻,如果SCTD被支援的話,或是簡單地通過 頻道(ah—out—imag)。飽和邏輯係用以防止組合的貢獻從 記憶體的位元寬度溢位(〇 v e r f 1 〇 w)。如圖6 b所示,較佳 者,二暫存器R3及R4被用以暫時緩衝第一頻道 (ah —out —imag)的貢獻。 此一用以組合二頻道之方法降低記憶體需求以及計算 最終結果所需的時間量。當第二頻道貢獻被處理時,其被 儲存之第一頻道組合並儲存組合的頻道。因此,第二頻道 從未被儲存。較佳者,組合的頻道被寫回第一頻道的位 址。如果第一頻道未被儲存於一讀取修改 最好使用圖6A及⑽所^之二暫存器R1:R2丸寫R4。如L果體第 一頻道ό己憶體係一讀取-修改—寫入記憶體,好只使用 存 is R1,R 3。
圖七是與圖6A及6B—起使用之較佳電路,在決sSCTD
M240734 五、創作說明(11) 是否被支援之第二碼之位址。當AH被展開時,每個所產生 的值最好是儲存在後來的記憶體位址。如果第一二頻道為 SCTD被組合,組合的頻道貢獻最好覆寫在第一頻道上以降 低所需的記憶體。為說明,如果S C T D未被支援,第二頻道 之第一位置用的後續位址可以是位址51 6。如果SCTD被支 援,該值將與第一頻道組合並被寫回第一頻道記憶體之第 一位址,位址0。 當SCTD未被支援時被寫入決定之頻道值之位址為 ah —addr_wr i t e 〇 — 控制訊號,sctd —on & second —channel指示SCTD是否被支援。如果SCTD被支援, sctd_on & second_channel具有數值0,且如果不是, sctd —on & second —channel具有數值1。此位址被輸入解 多工器D3。如果SCTD未被支援(sctd_on & second一channel具有數值1),此位址通過多工器M5。多工 器M5通過位址,如果SCTD未被支援。 如果SCTD被支援,位址(ah_addr_write)被輸入減法 器S 2。減法器從位址減去第一頻道之記憶體數值之數目 (sctd —fold 一 dec)。當SCTD未被支援時,為降低功率消 耗’使用第一多工器M6。多工器M6選擇sctd 一 fold 一 dec做 為減法器S2的輸入,當託”被支援時(^“一⑽為丨)。如果 SCTD未被支援(sctd — 〇n為〇),輸入一〇(〇χ〇)至減法器S2多 工器M6之輸出被輸入多工器M5。當^仰被支援時,多工器 M5選擇被減除後的輸入。
第15頁 M240734
圖式簡單說明 第一圖係一聯合偵測接收器 第2A圖表示迴旋頻道響應之 第2B圖表示迴旋頻道響應之 第三圖表示將圖2A與圖2B之 以建立系統響應矩陣之實及虛部 第四圖表示圖2A及2B之加法 第五圖表示決定是否為廣播 性之流程圖。 之簡要方塊圖。 實部用的裝置。 虚部用的裝置。 輪出加總之裝置M姦a 輪$ 直u產生用 干月ϊ! fltj 。 樹之特定電路。 頻道支援空間碼傳輪多樣 第6A及6B圖表示組合用以輪入系統響應矩 (hermetian )的碼貢獻用之較佳電路。 辱梅 弟七圖表示決定圖6A及6B之雷放 β 心电路位址用之較佳電路 元件符號說明 0、1 位元 程式 20通信 24 解調器 10 多重通信 2 2 天線 26類比數位轉換器(ADC) 28頻道評估 30聯合偵測器 100、200電置 A1 - A 8 加法器/減法器元件 路 ΑΓ 、A9 - A14、A29、A100、A101 加法器元 A15-A28 元件 TCI、TC2、TC3、TC4 2 的補數裝置 CRR1、CRR3 輸入 Cl、C3 位置 CC 1 6位元頻道碼控制訊號 CC3 41 ^ ° 頻運瑪@ # 第四位元
M240734 圖式簡單說明 CRI 接收頻道響應 A 為頻道響應的實部 CC 頻道碼
Rl 、 R2 、 R3 、 R4 、 RR 、 RI SI、S2 減法器
Dl、D2、D3 解多工器 AC 、 BD 、 jAD 、 jBC 輸出 B 為頻道響應的虛部 C0-C15 位元 暫存器 M1-M6 多工器 SL1 飽和邏輯
I 第17頁
Claims (1)
- M240734 六 、申請專利藏園傳輸之賢H 天線、, 複數被傳輪資 / ί頻道評 量,jt用以評 一 合偵 以及該評估的 應矩陣之一赫—妗 一輸入用以接 使用者設備yi用以 該使用 耦合至一類 料訊號之一 估裝置丨,具 估每一該資 測裝置),具 頻道響應, 梅(hermet 斥或閘\,用 收一實接收複數在分碼多重存取格式 者設備包括 比數位轉換器,用以產生包括兮接收向量, 以 有一輸入用以接收該被接收向 料訊號之一頻道響應, 有一輸入用以接收該被接收向量 並使用該被接收向量及一系統響 1 an )評估該資料,包括 曰 以產生頻道碼,該互斥或閘具有 碼,一複擾亂碼以及一頻道碼特 =乘數之-符號’該頻道碼特定乘數具有實數值及虛數 值•复數 補數元件,用 矩陣之實部及 該頻道響應之 一㈣ (hermet i an ) 乘數為實數, 暫存,),加法器,加法器/減法器以及一 2的 以决疋一近似赫梅(hermetian)系統響應、 虛部,具有用以接收該被產生的頻道碼9 輸入, 久 多缠^器>\及厂(多工器、,用以選擇做為—赫梅 -曰應矩陣^部,如果該頻道碼特定 一鉍多工器〉以及一 I工器),用以選擇做為一赫梅 jhermetian) 之虛4,如果該頻道 每 乘數為虛數, -- 寸疋 l2的補數元科用以取得實部之2的補數,第18頁 M240734 六、申請專利範圍 一解多工器以及一多工器,用以選擇做為一赫梅 (hermetian)響應矩陣虛部之2的補數成份的輸出,如果 該頻道碼特定乘數為虛數,以及 一解多工器以及一多工器,用以選擇做為一系統 響應矩陣虛部之虛部,如果該頻道碼特定乘數為實數。第19頁
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39220202P | 2002-06-28 | 2002-06-28 | |
| US10/264,192 US7203181B2 (en) | 2002-06-28 | 2002-10-03 | CDMA system transmission matrix coefficient calculation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM240734U true TWM240734U (en) | 2004-08-11 |
Family
ID=27737165
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW095123033A TWI313111B (en) | 2002-06-28 | 2003-06-24 | Cdma system transmission matrix coefficient calculation |
| TW092117188A TWI265741B (en) | 2002-06-28 | 2003-06-24 | CDMA system transmission matrix coefficient calculation |
| TW093105014A TWI324860B (en) | 2002-06-28 | 2003-06-24 | Cdma system transmission matrix coefficient buchert |
| TW092211534U TWM240734U (en) | 2002-06-28 | 2003-06-24 | User equipment calculating CDMA system transmission matrix coefficient |
| TW092211535U TW588911U (en) | 2002-06-28 | 2003-06-24 | Base station calculating CDMA system transmission matrix coefficient |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW095123033A TWI313111B (en) | 2002-06-28 | 2003-06-24 | Cdma system transmission matrix coefficient calculation |
| TW092117188A TWI265741B (en) | 2002-06-28 | 2003-06-24 | CDMA system transmission matrix coefficient calculation |
| TW093105014A TWI324860B (en) | 2002-06-28 | 2003-06-24 | Cdma system transmission matrix coefficient buchert |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW092211535U TW588911U (en) | 2002-06-28 | 2003-06-24 | Base station calculating CDMA system transmission matrix coefficient |
Country Status (16)
| Country | Link |
|---|---|
| US (2) | US7203181B2 (zh) |
| EP (1) | EP1529358B1 (zh) |
| JP (2) | JP2005532014A (zh) |
| KR (8) | KR100625756B1 (zh) |
| CN (3) | CN1666439B (zh) |
| AT (1) | ATE335319T1 (zh) |
| AU (1) | AU2003280400A1 (zh) |
| CA (1) | CA2490810A1 (zh) |
| DE (3) | DE60307287T2 (zh) |
| ES (1) | ES2264767T3 (zh) |
| GB (1) | GB0315283D0 (zh) |
| HK (2) | HK1062118A2 (zh) |
| MX (1) | MXPA04012963A (zh) |
| NO (1) | NO20050467L (zh) |
| TW (5) | TWI313111B (zh) |
| WO (1) | WO2004004159A1 (zh) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6792032B2 (en) * | 2001-12-28 | 2004-09-14 | Interdigital Technology Corporation | CDMA system transmission matrix coefficient calculation |
| US8340216B2 (en) | 2005-03-18 | 2012-12-25 | Qualcomm Incorporated | Space-time scrambling for cellular systems |
| KR100769955B1 (ko) | 2005-12-10 | 2007-10-25 | 한국전자통신연구원 | 무선 통신 시스템 수신단의 검파 장치 |
| US10489154B2 (en) * | 2017-11-28 | 2019-11-26 | Intel Corporation | Apparatus and method for complex multiply and accumulate |
| US11814268B2 (en) * | 2021-08-13 | 2023-11-14 | Toyota Motor Engineering & Manufacturing North America, Inc. | Component lifts having support assemblies |
| US12684551B2 (en) * | 2021-09-23 | 2026-07-14 | Apple Inc. | Systems and methods for de-correlating coded signals in dual port transmissions |
| CN115809041B (zh) * | 2022-12-30 | 2023-04-25 | 中科南京智能技术研究院 | 一种可配置的补码运算装置及计算设备 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793759A (en) * | 1995-08-25 | 1998-08-11 | Terayon Corporation | Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes |
| JP2991170B2 (ja) * | 1997-10-01 | 1999-12-20 | 日本電気株式会社 | Cdma受信装置および方法 |
| US6301293B1 (en) | 1998-08-04 | 2001-10-09 | Agere Systems Guardian Corp. | Detectors for CDMA systems |
| US6515978B1 (en) | 1999-04-19 | 2003-02-04 | Lucent Technologies Inc. | Methods and apparatus for downlink diversity in CDMA using Walsh codes |
| FR2793363B1 (fr) | 1999-05-04 | 2001-07-06 | France Telecom | Procede de detection conjointe d'un ensemble de codes cdma |
| US6449246B1 (en) | 1999-09-15 | 2002-09-10 | Telcordia Technologies, Inc. | Multicarrier personal access communication system |
| CN1221083C (zh) | 1999-10-19 | 2005-09-28 | 美商内数位科技公司 | Cdma信号多用户检测接收器 |
| US6324209B1 (en) * | 2000-02-28 | 2001-11-27 | Golden Bridge Technology Inc. | Multi-channel spread spectrum system |
| FR2813727B1 (fr) | 2000-09-01 | 2002-11-29 | Thomson Csf | Procede et dispositif pour ordonner des signaux provenant de multi-utilisateurs |
| US7020175B2 (en) | 2000-09-21 | 2006-03-28 | Motorola, Inc. | MMSE reception of DS-CDMA with transmit diversity |
| TW540200B (en) | 2000-11-09 | 2003-07-01 | Interdigital Tech Corp | Single user detection |
| US6466611B1 (en) * | 2001-02-07 | 2002-10-15 | Motorola, Inc. | Multi-user detection using a finite-impulse-response matrix filter |
| JP3947770B2 (ja) * | 2001-03-12 | 2007-07-25 | 直樹 末広 | 多種拡散系列を用いたcdma通信方式 |
| KR100383594B1 (ko) * | 2001-06-01 | 2003-05-14 | 삼성전자주식회사 | 통신시스템의 하방향링크 공동검출 방법 및 장치 |
| US6792032B2 (en) | 2001-12-28 | 2004-09-14 | Interdigital Technology Corporation | CDMA system transmission matrix coefficient calculation |
| CN1170374C (zh) * | 2002-06-20 | 2004-10-06 | 大唐移动通信设备有限公司 | 一种适用于频率选择性衰落信道的空时编译码方法 |
-
2002
- 2002-10-03 US US10/264,192 patent/US7203181B2/en not_active Expired - Fee Related
-
2003
- 2003-06-23 AT AT03742132T patent/ATE335319T1/de not_active IP Right Cessation
- 2003-06-23 DE DE60307287T patent/DE60307287T2/de not_active Expired - Lifetime
- 2003-06-23 CN CN038150662A patent/CN1666439B/zh not_active Expired - Fee Related
- 2003-06-23 ES ES03742132T patent/ES2264767T3/es not_active Expired - Lifetime
- 2003-06-23 WO PCT/US2003/019701 patent/WO2004004159A1/en not_active Ceased
- 2003-06-23 EP EP03742132A patent/EP1529358B1/en not_active Expired - Lifetime
- 2003-06-23 AU AU2003280400A patent/AU2003280400A1/en not_active Abandoned
- 2003-06-23 MX MXPA04012963A patent/MXPA04012963A/es active IP Right Grant
- 2003-06-23 CA CA002490810A patent/CA2490810A1/en not_active Abandoned
- 2003-06-23 JP JP2004549824A patent/JP2005532014A/ja not_active Ceased
- 2003-06-23 KR KR1020047021396A patent/KR100625756B1/ko not_active Expired - Fee Related
- 2003-06-23 KR KR1020057016522A patent/KR20050094488A/ko not_active Withdrawn
- 2003-06-24 TW TW095123033A patent/TWI313111B/zh active
- 2003-06-24 TW TW092117188A patent/TWI265741B/zh not_active IP Right Cessation
- 2003-06-24 TW TW093105014A patent/TWI324860B/zh not_active IP Right Cessation
- 2003-06-24 TW TW092211534U patent/TWM240734U/zh unknown
- 2003-06-24 TW TW092211535U patent/TW588911U/zh not_active IP Right Cessation
- 2003-06-27 DE DE20309951U patent/DE20309951U1/de not_active Expired - Lifetime
- 2003-06-27 DE DE20309952U patent/DE20309952U1/de not_active Expired - Lifetime
- 2003-06-28 KR KR20-2003-0020587U patent/KR200329284Y1/ko not_active Ceased
- 2003-06-28 KR KR20-2003-0020584U patent/KR200328245Y1/ko not_active Ceased
- 2003-06-28 HK HK03104635A patent/HK1062118A2/zh not_active IP Right Cessation
- 2003-06-28 HK HK03104668A patent/HK1061181A2/zh not_active IP Right Cessation
- 2003-06-30 CN CNU032727259U patent/CN2728108Y/zh not_active Expired - Fee Related
- 2003-06-30 CN CNU032727283U patent/CN2648710Y/zh not_active Expired - Fee Related
- 2003-06-30 GB GBGB0315283.2A patent/GB0315283D0/en not_active Ceased
-
2004
- 2004-09-13 KR KR1020040072872A patent/KR100685244B1/ko not_active Expired - Fee Related
- 2004-09-22 KR KR1020040075863A patent/KR100597062B1/ko not_active Expired - Fee Related
-
2005
- 2005-01-27 NO NO20050467A patent/NO20050467L/no not_active Application Discontinuation
- 2005-08-24 KR KR1020050077863A patent/KR20050090352A/ko not_active Withdrawn
- 2005-08-29 KR KR1020050079674A patent/KR20050090358A/ko not_active Withdrawn
-
2007
- 2007-04-09 US US11/784,747 patent/US7693113B2/en not_active Expired - Fee Related
- 2007-10-17 JP JP2007270640A patent/JP2008079332A/ja not_active Withdrawn
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