JP2001511336A - Cdma移動電話機を同期する回路 - Google Patents
Cdma移動電話機を同期する回路Info
- Publication number
- JP2001511336A JP2001511336A JP53223899A JP53223899A JP2001511336A JP 2001511336 A JP2001511336 A JP 2001511336A JP 53223899 A JP53223899 A JP 53223899A JP 53223899 A JP53223899 A JP 53223899A JP 2001511336 A JP2001511336 A JP 2001511336A
- Authority
- JP
- Japan
- Prior art keywords
- oscillator
- clock signal
- signal
- frequency
- receiver
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/003—Arrangements to increase tolerance to errors in transmission or reception timing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. スペクトル拡散信号を送信する送信器を有する通信システムにおいて使用 される受信器であって、 該スペクトル拡散信号を受信し、そこから網クロック信号を回復する受信器手 段と、 発振器クロック信号を発生する発振器と、 該網クロック信号及び該発振器クロック信号を受信するため及び該網クロック 信号と該発振器信号との比較に基づき較正係数を発生するために該受信器手段及 び該発振器に結合される周波数比較器手段と、 該較正係数に基づいてウェイクアップ信号を出力するために該発振器及び該周 波数比較器手段に結合される制御器とを含む受信器。 2. 該発振器は該網クロック信号の周波数よりも少ないクロック周波数を有す る低周波発振器である、請求項1記載の受信器。 3. 該低周波発振器は約32Khzのクロック周波数を有する、請求項2記載 の受信器。 4. スペクトル拡散信号を送信する送信器を有する通信システムにおいて使用 される受信器であって、 該スペクトル拡散信号を受信し、そこから網クロック信号を回復する受信器手 段と、 発振器クロック信号を発生する発振器と、 該網クロック信号及び該発振器クロック信号を受信するため及び該網クロック 信号と該発振器信号との比較に基づき較正係数を発生するために該受信器手段及 び該発振器に結合される周波数比較器手段と、 該発振器クロック信号及び該較正係数から計算される所定の時間期間の後にウ ェイクアップ信号を出力するために該発振器及び該周波数比較器手段に結合され る制御器とを含む受信器。 5. 該発振器クロック信号は第1の周波数で発振し、該制御器は該発振器クロ ック信号の発振の数を計数する手段を有し、該所定の時間期間は該発振器クロッ ク信号の発振の数に該第1の周波数の更なる割合を加算又は減算して計算され、 該割合は該較正係数である、請求項4記載の受信器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/990,212 | 1997-12-12 | ||
US08/990,212 US6028855A (en) | 1997-12-12 | 1997-12-12 | Circuit for synchronizing CDMA mobile phones |
PCT/IB1998/001921 WO1999031912A2 (en) | 1997-12-12 | 1998-12-03 | Circuit for synchronizing cdma mobile phones |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001511336A true JP2001511336A (ja) | 2001-08-07 |
JP4240238B2 JP4240238B2 (ja) | 2009-03-18 |
Family
ID=25535903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53223899A Expired - Fee Related JP4240238B2 (ja) | 1997-12-12 | 1998-12-03 | Cdma移動電話機を同期する回路 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6028855A (ja) |
EP (1) | EP0960541B1 (ja) |
JP (1) | JP4240238B2 (ja) |
KR (1) | KR100576680B1 (ja) |
CN (1) | CN1109460C (ja) |
DE (1) | DE69827366T2 (ja) |
TW (1) | TW413987B (ja) |
WO (1) | WO1999031912A2 (ja) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003511951A (ja) * | 1999-10-08 | 2003-03-25 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Cdmaモバイル電話内に電力を保存する方法及び装置 |
GB2358304B (en) * | 2000-01-12 | 2003-12-10 | Bobson Hygiene Internat Inc | Energy conserving device for a remote controlled apparatus |
US6577856B1 (en) | 2000-05-25 | 2003-06-10 | Conexant Systems, Inc. | System and method for performing power management without losing data, connectivity or reachability |
US6603979B1 (en) * | 2000-06-27 | 2003-08-05 | Koninklijke Philips Electronics N.V. | Re-synchronization method for a communication device |
KR100531839B1 (ko) * | 2001-09-20 | 2005-11-30 | 엘지전자 주식회사 | 씨디엠에이 단말기의 수신편차 보정방법 |
TW201101752A (en) | 2002-05-10 | 2011-01-01 | Interdigital Tech Corp | Cognitive flow control based on channel quality conditions |
KR100450507B1 (ko) * | 2002-10-15 | 2004-10-01 | 주식회사 팬택 | 이동 통신용 실시간 클럭 타이밍 보정 장치 |
US7444401B1 (en) | 2002-11-18 | 2008-10-28 | Arkion Systems Llc | Method and apparatus for inexpensively monitoring and controlling remotely distributed appliances |
GB2397465B (en) * | 2003-01-15 | 2004-12-29 | Nec Technologies | Mobile radio communications device and operating method |
US20050221870A1 (en) * | 2004-04-06 | 2005-10-06 | Integration Associates Inc. | Method and circuit for determining a slow clock calibration factor |
CN1780488B (zh) * | 2004-11-23 | 2010-05-05 | 中兴通讯股份有限公司 | 一种程控交换机系统时钟校准装置 |
US8364185B2 (en) * | 2005-04-18 | 2013-01-29 | Samsung Electronics Co., Ltd. | Method and system for synchronizing a clock for an adjacent network to a clock for an overlay network |
CN100358383C (zh) * | 2005-09-16 | 2007-12-26 | 重庆重邮信科股份有限公司 | 提高移动通信终端低频晶体振荡器精确度的方法 |
MX2011004330A (es) | 2008-10-27 | 2011-08-03 | Mueller Int Llc | Sistema y metodo de monitoreo de infraestructura. |
JP2012527706A (ja) | 2009-05-22 | 2012-11-08 | ミューラー インターナショナル インコーポレイテッド | インフラ監視装置、システム、および方法 |
CA3116787C (en) | 2010-06-16 | 2023-07-11 | Mueller International, Llc | Infrastructure monitoring devices, systems, and methods |
US8514996B2 (en) * | 2010-07-14 | 2013-08-20 | Honeywell International Inc. | Real time distributed embedded oscillator operating frequency monitoring |
US8833390B2 (en) | 2011-05-31 | 2014-09-16 | Mueller International, Llc | Valve meter assembly and method |
US8855569B2 (en) | 2011-10-27 | 2014-10-07 | Mueller International, Llc | Systems and methods for dynamic squelching in radio frequency devices |
US8660134B2 (en) * | 2011-10-27 | 2014-02-25 | Mueller International, Llc | Systems and methods for time-based hailing of radio frequency devices |
US9494249B2 (en) | 2014-05-09 | 2016-11-15 | Mueller International, Llc | Mechanical stop for actuator and orifice |
US9565620B2 (en) | 2014-09-02 | 2017-02-07 | Mueller International, Llc | Dynamic routing in a mesh network |
US10070403B2 (en) | 2016-03-09 | 2018-09-04 | Mueller International, Llc | Time beacons |
US10582347B2 (en) | 2016-04-14 | 2020-03-03 | Mueller International, Llc | SMS communication for cellular node |
US10097411B2 (en) | 2016-05-23 | 2018-10-09 | Mueller International, Llc | Node migration |
US10200947B2 (en) | 2016-07-11 | 2019-02-05 | Mueller International, Llc | Asymmetrical hail timing |
US10178617B2 (en) | 2017-05-01 | 2019-01-08 | Mueller International, Llc | Hail and acceptance for battery-powered devices |
US10267652B1 (en) | 2018-01-23 | 2019-04-23 | Mueller International, Llc | Node communication with unknown network ID |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5283568A (en) * | 1990-12-12 | 1994-02-01 | Nec Corporation | Radio pager with high speed clock of controlled rise time |
US5280499A (en) * | 1991-10-18 | 1994-01-18 | Ricoh Company, Ltd. | Spread spectrum communication system |
US5590160A (en) * | 1992-12-30 | 1996-12-31 | Nokia Mobile Phones Ltd. | Symbol and frame synchronization in both a TDMA system and a CDMA |
JPH07297757A (ja) * | 1994-04-28 | 1995-11-10 | Sanyo Electric Co Ltd | スペクトル拡散受信装置 |
GB2297884B (en) * | 1995-02-07 | 1999-05-26 | Nokia Mobile Phones Ltd | Radio telephone |
JP3372135B2 (ja) * | 1995-05-24 | 2003-01-27 | ソニー株式会社 | 通信端末装置 |
GB2307621B (en) * | 1995-11-21 | 1997-12-03 | At & T Corp | Cdma air interface for radio local loop system |
US5910944A (en) * | 1997-02-28 | 1999-06-08 | Motorola, Inc. | Radio telephone and method for operating a radiotelephone in slotted paging mode |
US5950120A (en) * | 1997-06-17 | 1999-09-07 | Lsi Logic Corporation | Apparatus and method for shutdown of wireless communications mobile station with multiple clocks |
-
1997
- 1997-12-12 US US08/990,212 patent/US6028855A/en not_active Expired - Lifetime
-
1998
- 1998-12-03 DE DE69827366T patent/DE69827366T2/de not_active Expired - Lifetime
- 1998-12-03 JP JP53223899A patent/JP4240238B2/ja not_active Expired - Fee Related
- 1998-12-03 WO PCT/IB1998/001921 patent/WO1999031912A2/en active IP Right Grant
- 1998-12-03 EP EP98954690A patent/EP0960541B1/en not_active Expired - Lifetime
- 1998-12-03 KR KR1019997007209A patent/KR100576680B1/ko not_active IP Right Cessation
- 1998-12-03 CN CN98803961A patent/CN1109460C/zh not_active Expired - Lifetime
-
1999
- 1999-02-04 TW TW088101699A patent/TW413987B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US6028855A (en) | 2000-02-22 |
KR20000070944A (ko) | 2000-11-25 |
DE69827366T2 (de) | 2005-11-10 |
EP0960541B1 (en) | 2004-11-03 |
KR100576680B1 (ko) | 2006-05-04 |
WO1999031912A3 (en) | 1999-08-19 |
EP0960541A2 (en) | 1999-12-01 |
CN1252188A (zh) | 2000-05-03 |
TW413987B (en) | 2000-12-01 |
DE69827366D1 (de) | 2004-12-09 |
WO1999031912A2 (en) | 1999-06-24 |
CN1109460C (zh) | 2003-05-21 |
JP4240238B2 (ja) | 2009-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2001511336A (ja) | Cdma移動電話機を同期する回路 | |
JP4510003B2 (ja) | 移動無線端末における同期方法 | |
CN100429898C (zh) | 无线通信系统、设备、方法 | |
US7961828B2 (en) | Sync bursts frequency offset compensation | |
EP2503714B1 (en) | Mobile user terminal, mobile communication system, base station, and communication method | |
US7277457B2 (en) | Sync bursts for frequency offset compensation | |
US20110076945A1 (en) | Methods for Controlling a Main Clock Source Shared Between Different Wireless Communication Modules and Apparatuses Using the Same | |
US20100112950A1 (en) | Wake-up radio system | |
JP4919204B2 (ja) | センサネットワークシステム及びメディアアクセス制御方法 | |
KR100350474B1 (ko) | 디지털 무선 통신 단말 시스템에서 대기시 적응적 전력소모 감소 방법 | |
CN106465276A (zh) | 使用设备模式对多速率无线系统中的rf低功率模式进行自适应控制 | |
CN100574126C (zh) | 一种射频收发信装置及方法 | |
JP4493133B2 (ja) | 移動局の端末装置および通信方法 | |
US20080043778A1 (en) | Detection of stations for wireless communication | |
CN114097280A (zh) | 无线设备 | |
EP1334574A1 (en) | Method and apparatus to synchronize mobile radios | |
CN114762260A (zh) | 无线通信系统中的唤醒通信 | |
JPH09294100A (ja) | 無線通信機および無線通信方法 | |
JP2012222768A (ja) | 無線通信装置及び無線通信システム | |
JPH07283751A (ja) | 無線通信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051130 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070710 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20070928 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20071010 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20071119 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20071101 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080527 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20080715 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080718 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20080916 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20081118 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20081217 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120109 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130109 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |