JP2000165940A - ワイアレスセルラ通信システムにおいて情報を通信する方法 - Google Patents
ワイアレスセルラ通信システムにおいて情報を通信する方法Info
- Publication number
- JP2000165940A JP2000165940A JP11333385A JP33338599A JP2000165940A JP 2000165940 A JP2000165940 A JP 2000165940A JP 11333385 A JP11333385 A JP 11333385A JP 33338599 A JP33338599 A JP 33338599A JP 2000165940 A JP2000165940 A JP 2000165940A
- Authority
- JP
- Japan
- Prior art keywords
- downlink
- uplink
- base station
- subscriber units
- cdma
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 62
- 230000010267 cellular communication Effects 0.000 title claims 4
- 238000004891 communication Methods 0.000 claims abstract description 39
- 238000005516 engineering process Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 230000007480 spreading Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Bidirectional Digital Transmission (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/200,521 US6813254B1 (en) | 1998-11-25 | 1998-11-25 | Methods and apparatus for wireless communication using code division duplex time-slotted CDMA |
| US09/200521 | 1998-11-25 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009011705A Division JP4598132B2 (ja) | 1998-11-25 | 2009-01-22 | ワイアレスセルラ通信システムにおいて情報を通信する方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000165940A true JP2000165940A (ja) | 2000-06-16 |
Family
ID=22742063
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11333385A Pending JP2000165940A (ja) | 1998-11-25 | 1999-11-24 | ワイアレスセルラ通信システムにおいて情報を通信する方法 |
| JP2009011705A Expired - Fee Related JP4598132B2 (ja) | 1998-11-25 | 2009-01-22 | ワイアレスセルラ通信システムにおいて情報を通信する方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009011705A Expired - Fee Related JP4598132B2 (ja) | 1998-11-25 | 2009-01-22 | ワイアレスセルラ通信システムにおいて情報を通信する方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6813254B1 (https=) |
| EP (1) | EP1005180B1 (https=) |
| JP (2) | JP2000165940A (https=) |
| CA (1) | CA2286417C (https=) |
| DE (1) | DE69943180D1 (https=) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI104135B (fi) * | 1997-06-24 | 1999-11-15 | Nokia Mobile Phones Ltd | Aikajakoiset monikäyttöradiojärjestelmät |
| EP1089512A1 (en) * | 1999-09-30 | 2001-04-04 | Sony International (Europe) GmbH | Telecommunication device with analog fourier transformation unit |
| US7227850B2 (en) * | 2001-04-04 | 2007-06-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Cellular radio communication system with frequency reuse |
| US20040004951A1 (en) | 2002-07-05 | 2004-01-08 | Interdigital Technology Corporation | Method for performing wireless switching |
| KR100474849B1 (ko) * | 2002-11-01 | 2005-03-11 | 삼성전자주식회사 | 어레이 안테나를 이용한 빔포밍 방법에 의한코드분할다중접속 이동통신 시스템에서 코드를 재사용하는방법 및 장치 |
| US7493133B2 (en) * | 2004-02-05 | 2009-02-17 | Qualcomm, Incorporated | Power control in ad-hoc wireless networks |
| US20060289439A1 (en) * | 2005-03-21 | 2006-12-28 | Samantha Dreimann | Food steamer with plurality of compartments |
| US7957327B2 (en) | 2005-05-18 | 2011-06-07 | Qualcomm Incorporated | Efficient support for TDD beamforming via constrained hopping and on-demand pilot |
| JP2008017341A (ja) * | 2006-07-07 | 2008-01-24 | Ntt Docomo Inc | 無線通信装置および無線通信方法 |
| CN100594689C (zh) * | 2006-09-20 | 2010-03-17 | 北京大学 | 一种码分双工的通信方法 |
| US9681455B2 (en) * | 2010-01-28 | 2017-06-13 | Alcatel Lucent | Methods for reducing interference in a communication system |
| US9086472B2 (en) * | 2012-09-26 | 2015-07-21 | Gennadii Ivtsenkov | Multi-transceiver RF alert system for preventing hunting accidents |
| KR101817014B1 (ko) * | 2015-09-18 | 2018-01-10 | 한국과학기술원 | 다중 빔 코드 분할 다중 접속 통신 방법 및 이를 수행하는 장치 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5627880A (en) * | 1992-11-02 | 1997-05-06 | Motorola, Inc. | MAHO method for SFH-CDMA/TDMA using punctured frames |
| SE9203384L (sv) | 1992-11-13 | 1993-10-25 | Televerket | Förfarande och anordning för dynamisk allokering av multipla bärvågskanaler för multipelaccess genom frekvensmultiplexering |
| US5420851A (en) * | 1993-11-24 | 1995-05-30 | At&T Corp. | Method of multiple access |
| SG48266A1 (en) | 1993-12-22 | 1998-04-17 | Philips Electronics Nv | Multicarrier frequency hopping communications system |
| JPH07226978A (ja) * | 1994-02-14 | 1995-08-22 | Matsushita Electric Ind Co Ltd | 多重通信装置 |
| WO1995024086A2 (en) | 1994-02-25 | 1995-09-08 | Philips Electronics N.V. | A multiple access digital transmission system and a radio base station and a receiver for use in such a system |
| US6018528A (en) * | 1994-04-28 | 2000-01-25 | At&T Corp | System and method for optimizing spectral efficiency using time-frequency-code slicing |
| US5596333A (en) * | 1994-08-31 | 1997-01-21 | Motorola, Inc. | Method and apparatus for conveying a communication signal between a communication unit and a base site |
| US5614914A (en) | 1994-09-06 | 1997-03-25 | Interdigital Technology Corporation | Wireless telephone distribution system with time and space diversity transmission for determining receiver location |
| JP3480761B2 (ja) * | 1995-03-30 | 2003-12-22 | 株式会社東芝 | 無線通信方法 |
| US6049535A (en) * | 1996-06-27 | 2000-04-11 | Interdigital Technology Corporation | Code division multiple access (CDMA) communication system |
| GB2307621B (en) * | 1995-11-21 | 1997-12-03 | At & T Corp | Cdma air interface for radio local loop system |
| CA2216761C (en) * | 1996-11-08 | 2002-01-01 | Lucent Technologies Inc. | Tdm-based fixed wireless loop system |
| JPH10190616A (ja) * | 1996-12-20 | 1998-07-21 | Oki Electric Ind Co Ltd | ハンドオーバ制御装置 |
| EP0960544B1 (en) * | 1997-02-13 | 2004-12-15 | Nokia Corporation | Method and apparatus for directional radio communication |
| US6122266A (en) * | 1997-02-19 | 2000-09-19 | Lucent Technologies Inc. | Multi-level sectorized CDMA communications |
| JP3392704B2 (ja) * | 1997-05-09 | 2003-03-31 | 株式会社東芝 | 無線通信システム及び無線基地局 |
| US6005854A (en) * | 1997-08-08 | 1999-12-21 | Cwill Telecommunication, Inc. | Synchronous wireless access protocol method and apparatus |
| US6282179B1 (en) * | 1997-10-17 | 2001-08-28 | At&T Corp. | Method and system for reducing multipath fading in bent-pipe satellite communications systems |
| US6118767A (en) * | 1997-11-19 | 2000-09-12 | Metawave Communications Corporation | Interference control for CDMA networks using a plurality of narrow antenna beams and an estimation of the number of users/remote signals present |
| US6067315A (en) * | 1997-12-04 | 2000-05-23 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for coherently-averaged power estimation |
| US6208871B1 (en) * | 1998-02-27 | 2001-03-27 | Motorola, Inc. | Method and apparatus for providing a time adjustment to a wireless communication system |
| US6178333B1 (en) * | 1998-04-15 | 2001-01-23 | Metawave Communications Corporation | System and method providing delays for CDMA nulling |
| US6181276B1 (en) * | 1998-10-09 | 2001-01-30 | Metawave Communications Corporation | Sector shaping transition system and method |
| US6542485B1 (en) * | 1998-11-25 | 2003-04-01 | Lucent Technologies Inc. | Methods and apparatus for wireless communication using time division duplex time-slotted CDMA |
| US6091757A (en) * | 1998-12-03 | 2000-07-18 | Motorola, Inc. | Data transmission within a spread-spectrum communication system |
| AU2001238646A1 (en) * | 2000-02-24 | 2001-09-03 | Tantivy Communications, Inc. | Method and system for economical beam forming in a radio communication system |
-
1998
- 1998-11-25 US US09/200,521 patent/US6813254B1/en not_active Expired - Lifetime
-
1999
- 1999-10-18 CA CA002286417A patent/CA2286417C/en not_active Expired - Lifetime
- 1999-11-16 DE DE69943180T patent/DE69943180D1/de not_active Expired - Lifetime
- 1999-11-16 EP EP99309123A patent/EP1005180B1/en not_active Expired - Lifetime
- 1999-11-24 JP JP11333385A patent/JP2000165940A/ja active Pending
-
2009
- 2009-01-22 JP JP2009011705A patent/JP4598132B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1005180B1 (en) | 2011-02-09 |
| CA2286417A1 (en) | 2000-05-25 |
| EP1005180A3 (en) | 2006-03-15 |
| JP2009135953A (ja) | 2009-06-18 |
| CA2286417C (en) | 2006-01-03 |
| US6813254B1 (en) | 2004-11-02 |
| EP1005180A2 (en) | 2000-05-31 |
| DE69943180D1 (de) | 2011-03-24 |
| JP4598132B2 (ja) | 2010-12-15 |
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