MX2010002047A - Metodo y aparato para mitigar la perdida temporal de sincronizacion de un sistema de comunicacion inalambrica. - Google Patents
Metodo y aparato para mitigar la perdida temporal de sincronizacion de un sistema de comunicacion inalambrica.Info
- Publication number
- MX2010002047A MX2010002047A MX2010002047A MX2010002047A MX2010002047A MX 2010002047 A MX2010002047 A MX 2010002047A MX 2010002047 A MX2010002047 A MX 2010002047A MX 2010002047 A MX2010002047 A MX 2010002047A MX 2010002047 A MX2010002047 A MX 2010002047A
- Authority
- MX
- Mexico
- Prior art keywords
- cell
- synchronization
- synchronous operation
- wireless communication
- transmit power
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2662—Arrangements for Wireless System Synchronisation
- H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
- H04B7/2678—Time synchronisation
- H04B7/2687—Inter base stations synchronisation
- H04B7/2693—Centralised synchronisation, i.e. using external universal time reference, e.g. by using a global positioning system [GPS] or by distributing time reference over the wireline network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
-
- 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
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Se describen técnicas para mitigar la pérdida temporal de sincronización en un sistema de comunicación inalámbrica. En un aspecto, una célula puede difundir periódicamente un indicador de modo para indicar la operación sincrónica u operación asincrónica por la célula. La célula también puede difundir su identidad de célula (ID), que puede omitir el indicador de modo y luego permanecería sin cambio cuando la célula cambia entre la operación asincrónica y sincrónica. En otro aspecto, la célula puede enviar información del tiempo del sistema indicativa de su tiempo actualizado del sistema al cambiar de la operación asincrónica a la operación sincrónica. El tiempo actualizado del sistema se puede usar para la comunicación con las terminales después del cambio a la operación sincrónica. En todavía otro aspecto, la célula puede disminuir su energía de transmisión antes de cambiar del modo de sincronización, cambiar el modo de sincronización cuando su energía de transmisión alcanza un nivel de energía predeterminado y después incrementar su energía de transmisión.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US95751507P | 2007-08-23 | 2007-08-23 | |
US12/178,157 US9467958B2 (en) | 2007-08-23 | 2008-07-23 | Method and apparatus for mitigating temporary loss of synchronization in a wireless communication system |
PCT/US2008/074095 WO2009026557A2 (en) | 2007-08-23 | 2008-08-22 | Method and apparatus for mitigating temporary loss of synchronization in a wireless communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2010002047A true MX2010002047A (es) | 2010-03-25 |
Family
ID=40090345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2010002047A MX2010002047A (es) | 2007-08-23 | 2008-08-22 | Metodo y aparato para mitigar la perdida temporal de sincronizacion de un sistema de comunicacion inalambrica. |
Country Status (12)
Country | Link |
---|---|
US (1) | US9467958B2 (es) |
EP (1) | EP2198651A2 (es) |
JP (1) | JP2010537583A (es) |
KR (1) | KR20100056541A (es) |
CN (1) | CN101785344A (es) |
AU (1) | AU2008288790A1 (es) |
BR (1) | BRPI0815697A2 (es) |
CA (1) | CA2695013A1 (es) |
MX (1) | MX2010002047A (es) |
RU (1) | RU2010110810A (es) |
TW (1) | TW200917730A (es) |
WO (1) | WO2009026557A2 (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012510763A (ja) * | 2008-12-03 | 2012-05-10 | ノーテル・ネットワークス・リミテッド | 複数の冗長的なgnssの同期システム |
US8625572B2 (en) * | 2008-12-19 | 2014-01-07 | Nokia Corporation | Synchronization indication in networks |
US8799909B1 (en) * | 2008-12-23 | 2014-08-05 | Juniper Networks, Inc. | System and method for independent synchronous and asynchronous transaction requests |
JP5477793B2 (ja) * | 2008-12-26 | 2014-04-23 | シャープ株式会社 | 基地局装置、移動局装置、無線通信システム及び無線通信方法 |
JP2012522418A (ja) * | 2009-03-27 | 2012-09-20 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 移動体端末の位置の推定を可能にする方法及び装置 |
TWI628933B (zh) * | 2009-10-01 | 2018-07-01 | 內數位專利控股公司 | 傳輸上鏈控制資訊的方法及系統 |
CN102083193B (zh) | 2009-11-30 | 2016-09-28 | 中兴通讯股份有限公司 | 时分双工系统中网络节点的同步方法及系统 |
EP2765730A3 (en) | 2010-01-08 | 2015-04-15 | Interdigital Patent Holdings, Inc. | Channel state information transmission for multiple carriers |
US9497764B2 (en) * | 2013-07-15 | 2016-11-15 | Qualcomm Incorporated | Systems and methods for a data scrambling procedure |
US10244453B2 (en) * | 2015-10-13 | 2019-03-26 | Qualcomm Incorporated | Method and apparatus for inter-satellite handovers in low-earth orbit (LEO) satellite systems |
CN107204928B (zh) * | 2016-03-18 | 2021-06-08 | 华为技术有限公司 | 更新时钟同步拓扑的方法、确定时钟同步路径的方法及设备 |
MX2019003937A (es) * | 2016-10-07 | 2019-07-04 | Ericsson Telefon Ab L M | Control de tiempo de validez de concesion del enlace ascendente en la celula objetivo durante el traspaso sin canal de acceso aleatorio. |
CN111989889B (zh) * | 2018-04-04 | 2023-06-02 | 华为技术有限公司 | 通信方法及装置 |
JP7150041B2 (ja) * | 2018-10-12 | 2022-10-07 | 京セラ株式会社 | 基地局、管理装置、及び方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5353332A (en) * | 1992-09-16 | 1994-10-04 | Ericsson Ge Mobile Communications Inc. | Method and apparatus for communication control in a radiotelephone system |
SE0003748D0 (sv) | 2000-10-13 | 2000-10-13 | Ericsson Telefon Ab L M | Methods and arrangements relating to a radio communication system |
JP3802372B2 (ja) * | 2001-05-16 | 2006-07-26 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システム |
JP4105634B2 (ja) * | 2002-01-30 | 2008-06-25 | エルジー エレクトロニクス インコーポレーテッド | 可変の固定長スロットの数を用いたパケットデータのスクランブリング方法及び可変の固定長スロットの数を用いたパケットデータのスクランブリング装置 |
JP4346996B2 (ja) | 2003-08-29 | 2009-10-21 | 株式会社日立コミュニケーションテクノロジー | 移動通信システム |
WO2005067686A2 (en) * | 2004-01-12 | 2005-07-28 | Andrew Corporation | Method and apparatus for synchronizing wireless location servers |
US20080095111A1 (en) | 2004-03-31 | 2008-04-24 | Kim Young-Lak | Method for Hand-Over Between Asynchronous Communication Network and Synchronous Communication Network of Multi Mode Multi Band Mobile Communication Terminal and Mobile Communication Terminal Therefor |
US7715845B2 (en) * | 2004-10-14 | 2010-05-11 | Qualcomm Incorporated | Tone hopping methods and apparatus |
US20060292982A1 (en) * | 2005-06-24 | 2006-12-28 | Lucent Technologies, Inc. | Method for accomodating timing drift between base stations in a wireless communications system |
US8313723B2 (en) | 2005-08-25 | 2012-11-20 | Nanocarbons Llc | Activated carbon fibers, methods of their preparation, and devices comprising activated carbon fibers |
KR100827064B1 (ko) | 2006-01-18 | 2008-05-02 | 삼성전자주식회사 | Ofdm 기반 셀룰러 무선통신시스템의 동기 신호 송신 방법 및 장치 |
US20070177605A1 (en) | 2006-01-30 | 2007-08-02 | Benco David S | Method for utilizing a backup timing source when GPS becomes nonfunctional |
JP2009540767A (ja) * | 2006-06-13 | 2009-11-19 | クゥアルコム・インコーポレイテッド | 無線通信システムのためのリバースリンク・パイロット送信 |
CA2642017C (en) | 2006-07-25 | 2012-09-18 | Il-Gyu Kim | Cell search method, forward link frame transmission method, apparatus using the same and forward link frame structure |
US7826820B2 (en) * | 2006-09-08 | 2010-11-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Non-homogenous telecommunications base stations |
US8416761B2 (en) * | 2006-09-28 | 2013-04-09 | Motorola Mobility Llc | Mitigating synchronization loss |
BRPI0717951B1 (pt) | 2006-11-06 | 2019-11-12 | Qualcomm Inc | método, memória legível por computador e sistema para controle de potência de transmissão dependente de carga de sub-banda |
US8457315B2 (en) * | 2007-01-05 | 2013-06-04 | Qualcomm Incorporated | Pilot transmission in a wireless communication system |
-
2008
- 2008-07-23 US US12/178,157 patent/US9467958B2/en active Active
- 2008-08-22 CA CA2695013A patent/CA2695013A1/en not_active Abandoned
- 2008-08-22 JP JP2010522083A patent/JP2010537583A/ja active Pending
- 2008-08-22 CN CN200880103456A patent/CN101785344A/zh active Pending
- 2008-08-22 KR KR1020107006333A patent/KR20100056541A/ko not_active Application Discontinuation
- 2008-08-22 AU AU2008288790A patent/AU2008288790A1/en not_active Abandoned
- 2008-08-22 MX MX2010002047A patent/MX2010002047A/es not_active Application Discontinuation
- 2008-08-22 WO PCT/US2008/074095 patent/WO2009026557A2/en active Application Filing
- 2008-08-22 RU RU2010110810/08A patent/RU2010110810A/ru unknown
- 2008-08-22 TW TW097132307A patent/TW200917730A/zh unknown
- 2008-08-22 EP EP08798548A patent/EP2198651A2/en not_active Withdrawn
- 2008-08-22 BR BRPI0815697-2A2A patent/BRPI0815697A2/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP2198651A2 (en) | 2010-06-23 |
US20090052430A1 (en) | 2009-02-26 |
CN101785344A (zh) | 2010-07-21 |
JP2010537583A (ja) | 2010-12-02 |
TW200917730A (en) | 2009-04-16 |
US9467958B2 (en) | 2016-10-11 |
WO2009026557A2 (en) | 2009-02-26 |
AU2008288790A1 (en) | 2009-02-26 |
KR20100056541A (ko) | 2010-05-27 |
BRPI0815697A2 (pt) | 2015-02-18 |
WO2009026557A3 (en) | 2009-05-07 |
CA2695013A1 (en) | 2009-02-26 |
RU2010110810A (ru) | 2011-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HH | Correction or change in general | ||
FA | Abandonment or withdrawal |