[go: up one dir, main page]

AR007302A1 - Estacion de base para rechazo de interferencia por combinacion y formacion de haz de enlace descendente en una disposicion celular de radiocomunicaciones y metodo de operacion - Google Patents

Estacion de base para rechazo de interferencia por combinacion y formacion de haz de enlace descendente en una disposicion celular de radiocomunicaciones y metodo de operacion

Info

Publication number
AR007302A1
AR007302A1 ARP970102256A ARP970102256A AR007302A1 AR 007302 A1 AR007302 A1 AR 007302A1 AR P970102256 A ARP970102256 A AR P970102256A AR P970102256 A ARP970102256 A AR P970102256A AR 007302 A1 AR007302 A1 AR 007302A1
Authority
AR
Argentina
Prior art keywords
techniques
performance
arrangement
base station
improved
Prior art date
Application number
ARP970102256A
Other languages
English (en)
Original Assignee
Telefoniaktiebolaget Lm Ericsson Publ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefoniaktiebolaget Lm Ericsson Publ filed Critical Telefoniaktiebolaget Lm Ericsson Publ
Publication of AR007302A1 publication Critical patent/AR007302A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03331—Arrangements for the joint estimation of multiple sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Recientemente, se han propuesto técnicas de combinación para rechazo de interferencia que pueden aumentar significativamente el rendimiento del enlaceascendente en entornos de C/I limitada. Otra propiedad de las técnicas IRC es que elrendimien to de C/I no se degrada a medida que aumenta la correlaciónentre las senales recibidas. Esta característica de las técnicas IRC se explota para permitir un espaciado reducido entre las antenas. De acuerdo con otroaspecto se mejora elrendimiento del enlace descendente usando técnicas de formación de haz para conducir las transmisiones de la estación de basehacia una estación móvil deseada. De este modo, se mejora el rendimiento del enlace descendente usando técnicas deformación de haz, hasta un grado similaral alcanzado en el enlace ascendente usando técnicas IRC. Esto permite que el disenador de una disposicón explote por completo las variaciones de disenode una disposición asociadas con la mejora derendimiento del enlace ascendente.
ARP970102256A 1996-05-31 1997-05-27 Estacion de base para rechazo de interferencia por combinacion y formacion de haz de enlace descendente en una disposicion celular de radiocomunicaciones y metodo de operacion AR007302A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/655,930 US6173014B1 (en) 1994-08-02 1996-05-31 Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radio communications system

Publications (1)

Publication Number Publication Date
AR007302A1 true AR007302A1 (es) 1999-10-27

Family

ID=24630976

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP970102256A AR007302A1 (es) 1996-05-31 1997-05-27 Estacion de base para rechazo de interferencia por combinacion y formacion de haz de enlace descendente en una disposicion celular de radiocomunicaciones y metodo de operacion

Country Status (12)

Country Link
US (1) US6173014B1 (es)
EP (1) EP0903018B1 (es)
JP (1) JP2000511370A (es)
CN (1) CN1104105C (es)
AR (1) AR007302A1 (es)
AU (1) AU727141B2 (es)
BR (1) BR9709488B1 (es)
CA (1) CA2255845C (es)
DE (1) DE69737932T2 (es)
MY (1) MY118073A (es)
TW (1) TW358268B (es)
WO (1) WO1997045968A1 (es)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103618B1 (fi) * 1997-07-04 1999-07-30 Nokia Telecommunications Oy Vastaanotetun signaalin tulkitseminen
US6345078B1 (en) * 1997-07-31 2002-02-05 Lucent Technologies Inc. Finger assignment system for a multiple finger receiver and method thereof
US6694154B1 (en) * 1997-11-17 2004-02-17 Ericsson Inc. Method and apparatus for performing beam searching in a radio communication system
US6529138B2 (en) * 1997-12-12 2003-03-04 Canon Kabushiki Kaisha Remote-control-signal-receiving device
US6600447B1 (en) * 1997-12-19 2003-07-29 Ericsson Inc. Apparatus and method for determining signal direction from an estimated signal medium response for a ray component of a radio signal
JPH11251959A (ja) * 1998-03-05 1999-09-17 Fujitsu Ltd 干渉キャンセラ装置及び無線通信装置
EP0953850B1 (en) * 1998-04-03 2005-03-16 Lucent Technologies Inc. Direction determination in cellular mobile communications network
US6795424B1 (en) * 1998-06-30 2004-09-21 Tellabs Operations, Inc. Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
US6377967B1 (en) * 1998-08-12 2002-04-23 Northrop Grumman Corporation Efficient digital integration technique filter
US6501747B1 (en) * 1998-08-20 2002-12-31 Metawave Communications Corporation Manifold assisted channel estimation and demodulation for CDMA systems in fast fading environments
FR2782882B1 (fr) * 1998-08-26 2000-10-20 Sfr Sa Procede de test d'un reseau de radiocommunication, dispositif et station de correspondants
US6314305B1 (en) * 1998-12-10 2001-11-06 Lucent Technologies Inc. Transmitter/receiver for combined adaptive array processing and fixed beam switching
EP1054519A1 (en) * 1999-05-11 2000-11-22 Alcatel Diversity transmission in a mobile radio system
EP1079544A1 (de) * 1999-08-20 2001-02-28 Alcatel CDMA-Mobilfunksystem
JP3562420B2 (ja) * 2000-02-10 2004-09-08 日本電気株式会社 適応アンテナ装置
FI20000476A0 (fi) 2000-03-01 2000-03-01 Nokia Networks Oy Menetelmä radioyhteyden toiminnan parantamiseksi
KR100493068B1 (ko) * 2000-03-08 2005-06-02 삼성전자주식회사 이동통신시스템에서 피드백 정보를 이용하는 반맹목적방식의 송신안테나어레이 장치 및 방법
US6711224B1 (en) * 2000-03-27 2004-03-23 Lucent Technologies Inc. Timing acquisition algorithm for an adaptive antenna array
US7010029B1 (en) * 2000-04-13 2006-03-07 At&T Corp. Equalization of transmit diversity space-time coded signals
CN1107424C (zh) * 2000-06-12 2003-04-30 信息产业部电信科学技术研究院 在频分双工无线通信系统中使用智能天线的方法与装置
KR20020037965A (ko) * 2000-11-16 2002-05-23 오길록 역방향 배열 응답 벡터를 이용한 순방향 빔 형성 시스템및 그 방법
KR100499472B1 (ko) * 2000-12-06 2005-07-07 엘지전자 주식회사 순방향 링크에서의 적응 어레이를 이용한 빔포밍 시스템
US6380910B1 (en) * 2001-01-10 2002-04-30 Lucent Technologies Inc. Wireless communications device having a compact antenna cluster
JP3973371B2 (ja) * 2001-03-21 2007-09-12 三洋電機株式会社 無線基地システムおよび指向性制御方法
FI20010779L (fi) * 2001-04-12 2002-10-13 Nokia Corp Menetelmä tiedonsiirtonopeuden kasvattamiseksi sekä vastaanotin, lähetin ja päätelaite
US7499499B2 (en) * 2001-06-04 2009-03-03 Alcatel-Lucent Usa Inc. Method for multiple antenna transmission
FI20011217A7 (fi) * 2001-06-08 2002-12-09 Nokia Corp Vastaanottomenetelmä, radiojärjestelmä ja vastaanotin
JP2003018058A (ja) * 2001-06-29 2003-01-17 Sony Corp 送信機、その送信方法及び通信システム
KR100428709B1 (ko) * 2001-08-17 2004-04-27 한국전자통신연구원 다중 경로 정보 피드백을 이용한 순방향 빔형성 장치 및그 방법
DE60123983T2 (de) 2001-12-03 2007-04-12 Alcatel Vorrichtung und Verfahren zur Signalübertragung zwischen einer adaptiven Antenne einer Basisstation und einem mobilen Teilnehmergerät in einem Telekommunikationsnetzwerk
US7236548B2 (en) * 2001-12-13 2007-06-26 Koninklijke Philips Electronics N.V. Bit level diversity combining for COFDM system
CN1172549C (zh) * 2002-03-27 2004-10-20 大唐移动通信设备有限公司 智能天线移动通信系统传输高速下行包交换数据的方法
US7672401B2 (en) * 2003-02-03 2010-03-02 Mcgill University System and method for data communication over multi-input, multi-output channels
US8804883B2 (en) * 2004-06-08 2014-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reduced interference signal demodulation
US7796956B2 (en) * 2005-05-03 2010-09-14 Telefonaktiebolaget L M Ericsson (Publ) Receiver for a multi-antenna, multi-band radio
CN100431386C (zh) * 2005-05-12 2008-11-05 上海原动力通信科技有限公司 同频多小区终端来波方向的估计方法
US7561644B2 (en) * 2005-09-29 2009-07-14 Intel Corporation Method, system and device for reducing co-channel interference
EP1788722A1 (en) * 2005-11-21 2007-05-23 Nortel Networks Limited Transmission method and related base station
JP4868835B2 (ja) * 2005-11-28 2012-02-01 キヤノン株式会社 通信経路の設定方法、通信装置、及びプログラム
US20070230638A1 (en) * 2006-03-30 2007-10-04 Meir Griniasty Method and apparatus to efficiently configure multi-antenna equalizers
FI20065438A0 (fi) * 2006-06-22 2006-06-22 Nokia Corp Häiriönpoistoyksikkö ja häiriönpoistomenetelmä
US8022860B1 (en) 2006-07-24 2011-09-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Enchanced interference cancellation and telemetry reception in multipath environments with a single paraboic dish antenna using a focal plane array
US20080112517A1 (en) * 2006-11-06 2008-05-15 Nokia Corporation Apparatus, methods, and computer program products providing reduced interference in a multi-antenna system
KR100846446B1 (ko) 2006-12-29 2008-07-16 세종대학교산학협력단 도래각 추정 장치 및 그 방법
KR20100028100A (ko) 2007-07-06 2010-03-11 가부시키가이샤 엔티티 도코모 이동통신시스템에 있어서의 기지국장치 및 지향성 제어방법
CN102577474A (zh) * 2009-10-05 2012-07-11 住友电气工业株式会社 基站装置和干扰抑制方法
EP2652883A1 (en) * 2010-12-15 2013-10-23 Sony Ericsson Mobile Communications AB Wireless terminals including smart antenna systems having multiple antennas
JP5389088B2 (ja) * 2011-03-29 2014-01-15 株式会社東芝 アンテナ装置、無線装置
JP5432208B2 (ja) 2011-04-25 2014-03-05 株式会社Ｎｔｔドコモ 移動通信端末
JP5451680B2 (ja) 2011-04-25 2014-03-26 株式会社Ｎｔｔドコモ 移動通信端末
US8503587B2 (en) * 2011-05-23 2013-08-06 Harris Corporation Adaptive channel tracking using peak fade depth estimation over a slot
WO2013056393A1 (en) 2011-10-19 2013-04-25 Telefonaktiebolaget L M Ericsson (Publ) Radio receiver for polarized antenna system
JP5554306B2 (ja) 2011-10-26 2014-07-23 株式会社Ｎｔｔドコモ 無線通信システム、無線基地局、移動通信端末、および通信制御方法
JP5685217B2 (ja) 2012-04-17 2015-03-18 株式会社Ｎｔｔドコモ 無線通信システム、無線基地局および移動端末
JP5770368B2 (ja) 2012-04-18 2015-08-26 株式会社Ｎｔｔドコモ 無線通信システム、無線基地局および通信制御方法
CN102812645B (zh) 2012-04-20 2015-08-05 华为技术有限公司 天线、基站及波束处理方法
WO2014017155A1 (ja) 2012-07-27 2014-01-30 株式会社エヌ・ティ・ティ・ドコモ 無線通信システムおよび無線基地局
US9684059B2 (en) * 2012-10-22 2017-06-20 Wifive.Co.,Ltd Device for estimating location and method for estimating location by using uplink access point
US10491282B2 (en) * 2012-12-17 2019-11-26 Ethertronics, Inc. Communication load balancing using distributed antenna beam steering techniques
EP2950574A4 (en) 2013-01-25 2016-01-20 Ntt Docomo Inc MOBILE COMMUNICATION TERMINAL
US9667372B2 (en) 2013-01-25 2017-05-30 Ntt Docomo, Inc. Mobile communication terminal
WO2014122771A1 (ja) * 2013-02-08 2014-08-14 パイオニア株式会社 ダイバーシティ受信装置、ダイバーシティ受信方法、受信プログラム及び記録媒体
US9548852B2 (en) * 2014-09-04 2017-01-17 Commscope Technologies Llc Antenna cross connect scheme for LTE
CN112952383B (zh) * 2020-12-09 2023-03-31 中国人民解放军93204部队 相控阵天线脉内多波束的实现方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713817A (en) 1985-04-25 1987-12-15 Codex Corporation Multidimensional, convolutionally coded communication systems
US4644562A (en) 1985-08-28 1987-02-17 At&T Company Combined cross polarization interference cancellation and intersymbol interference equalization for terrestrial digital radio systems
CA1338153C (en) 1987-11-10 1996-03-12 Yoshihiro Nozue Interference canceller
SE463540B (sv) 1988-09-19 1990-12-03 Ericsson Telefon Ab L M Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet
EP0381949A1 (de) 1989-02-01 1990-08-16 Siemens Aktiengesellschaft Diversity-Kombinator
SE464902B (sv) 1989-10-24 1991-06-24 Ericsson Telefon Ab L M Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5031193A (en) 1989-11-13 1991-07-09 Motorola, Inc. Method and apparatus for diversity reception of time-dispersed signals
SE465597B (sv) 1990-02-16 1991-09-30 Ericsson Telefon Ab L M Foerfarande att reducera inverkan av faedning hos en viterbimottagare med minst tvaa antenner
DE69228649T2 (de) 1991-11-18 1999-08-12 Nec Corp., Tokio/Tokyo Automatischer Entzerrer zur wirkungsvollen Kompensation der Nachbarsymbolinterferenz und der Kreuzpolarisationsinterferenz bei einer doppelten Gleichkanalpolarisation
US5515378A (en) 1991-12-12 1996-05-07 Arraycomm, Inc. Spatial division multiple access wireless communication systems
US5319677A (en) 1992-05-12 1994-06-07 Hughes Aircraft Company Diversity combiner with MLSE for digital cellular radio
WO1994009568A1 (en) 1992-10-09 1994-04-28 E-Systems, Inc. Adaptive co-channel interference reduction system for cellular telephone central base stations
US5351274A (en) 1993-08-20 1994-09-27 General Electric Company Post detection selection combining diversity receivers for mobile and indoor radio channels
US6081566A (en) * 1994-08-02 2000-06-27 Ericsson, Inc. Method and apparatus for interference rejection with different beams, polarizations, and phase references
US5680419A (en) 1994-08-02 1997-10-21 Ericsson Inc. Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems
US5481572A (en) 1994-08-02 1996-01-02 Ericsson Inc. Method of and apparatus for reducing the complexitiy of a diversity combining and sequence estimation receiver
US5787131A (en) * 1995-12-22 1998-07-28 Ericsson Inc. Method and apparatus for mitigation of self interference using array processing
US5796788A (en) * 1996-04-19 1998-08-18 Ericsson Inc. Method and apparatus for interference decorrelation in time and space
US5889827A (en) * 1996-12-12 1999-03-30 Ericsson Inc. Method and apparatus for digital symbol detection using medium response estimates
US5878093A (en) * 1996-12-16 1999-03-02 Ericsson Inc. Interference rejection combining with frequency correction
US6128355A (en) * 1997-05-21 2000-10-03 Telefonaktiebolget Lm Ericsson Selective diversity combining

Also Published As

Publication number Publication date
BR9709488B1 (pt) 2009-01-13
TW358268B (en) 1999-05-11
BR9709488A (pt) 1999-08-10
EP0903018B1 (en) 2007-07-18
JP2000511370A (ja) 2000-08-29
US6173014B1 (en) 2001-01-09
DE69737932D1 (de) 2007-08-30
DE69737932T2 (de) 2007-12-06
CN1104105C (zh) 2003-03-26
WO1997045968A1 (en) 1997-12-04
CA2255845A1 (en) 1997-12-04
CA2255845C (en) 2006-02-21
MY118073A (en) 2004-08-30
CN1220787A (zh) 1999-06-23
AU3053597A (en) 1998-01-05
EP0903018A1 (en) 1999-03-24
AU727141B2 (en) 2000-12-07

Similar Documents

Publication Publication Date Title
AR007302A1 (es) Estacion de base para rechazo de interferencia por combinacion y formacion de haz de enlace descendente en una disposicion celular de radiocomunicaciones y metodo de operacion
BR9401624A (pt) Sistema de transmissão com diversidade para radiocomunicações sem fio entre uma estação de base e pelo menos uma estação móvel ou uma pluralidade de estações móveis, para determinar a melhor trajetória de comunicação sem fio entre uma estação de base e uma estação móvel, e método de operação do mesmo
PT803991E (pt) Processo para optimizar a comunicacao radioelectrica entre uma base fixa e um telemovel
EP0902551A3 (en) Soft handover system for a multiple sub-carrier communication system and method thereof
ATE488881T1 (de) Vertikale dynamische strahlformung
TW200718226A (en) Adaptive sectorization in cellular systems
WO2002082684A3 (en) A cellular radio communication system with frequency reuse
FI961313A0 (fi) Keskusten välinen pehmeä kanavanvaihto solukkotietoliikennejärjestelmässä
WO2001043309A3 (en) Adaptive antenna array wireless data access point
TW200738012A (en) System and method utilizing dynamic beam forming for wireless communication signals
CA2311898A1 (en) Multistage diversity handling for cdma mobile telecommunications
MY132989A (en) Forward link transmission mode for cdma cellular communications system using steerable and distributed antennas
CA2311727A1 (en) Diversity handling moveover for cdma mobile telecommunications
CA2200518A1 (en) CDMA Mobile Communication Scheme with Effective Use of Sector Configuration
MX9606634A (es) Sectorizacion adaptable en un sistema de comunicacion de espectro difundido.
WO1997050272A3 (en) Multi-beam antenna arrays for base stations in which the channel follows the mobile unit
CA2270798A1 (en) A radio communication system, a mobile station apparatus and a base station apparatus
ATE218776T1 (de) Intelligentes antennen-cdma- nachrichtenübertragungssystem
DE60112246D1 (de) Energiesparendes verfahren für mobiles kommunikationsgerät mit zwei empfängern
WO2004077869A3 (en) Hard handoff target generation in a multi-frequency cdma mobile network
DE60117694D1 (de) Funk-basisstationsvorrichtung und funk-kommunikationsverfahren
AR025084A1 (es) Metodo de control de potencia de intervalo de tiempo de enlace descendente en un sistema de acceso multiple por division de tiempo.
US6188914B1 (en) Method and apparatus for improving link performance and capacity of a sectorized CDMA cellular communication network
SE9902984D0 (sv) Methods and arrangement relating to a radio communication network
FI20000176A0 (fi) Diversiteettilähetys

Legal Events

Date Code Title Description
FG Grant, registration