WO2010145610A1 - Procédé, station de base et station mobile pour commander la puissance d'un canal en liaison descendante dans un système de communication en grappe - Google Patents

Procédé, station de base et station mobile pour commander la puissance d'un canal en liaison descendante dans un système de communication en grappe Download PDF

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Publication number
WO2010145610A1
WO2010145610A1 PCT/CN2010/074780 CN2010074780W WO2010145610A1 WO 2010145610 A1 WO2010145610 A1 WO 2010145610A1 CN 2010074780 W CN2010074780 W CN 2010074780W WO 2010145610 A1 WO2010145610 A1 WO 2010145610A1
Authority
WO
WIPO (PCT)
Prior art keywords
user
power control
downlink
power
communication system
Prior art date
Application number
PCT/CN2010/074780
Other languages
English (en)
Chinese (zh)
Inventor
史凡
李家海
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2010145610A1 publication Critical patent/WO2010145610A1/fr

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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
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control

Definitions

  • the communication system is a multi-purpose, high-efficiency meta-scheduling communication system shared by resources, channels, and services. Centralized control and management are allocated in a centralized manner.
  • the communication system is in the same or both, and the user can have multiple users. Therefore, the system can be provided by multiple users at the same time.
  • Wood Co., Ltd.'s liter C 812282 (C 00438368 )'s divine power "God's power control method shared in the CA digital system" has raised the following uplink power control information within the small content, standing within the segment to collect users Power control information, information is based on the principle of the same, the same principle of downlink power control. In the method of liters, all users in the system need to use the uplink power control information, and the number of users is large, which is bound to occupy a large amount of uplink, which greatly reduces the efficiency of the system. In addition, it is necessary to collect power control information of all users.
  • the same power control it takes time to collect the same power control information, and the power control information on the user is ineffective, which makes the power control effect poor.
  • the main purpose of this is to provide a scheme for downlink power control of the communication system to solve the problem.
  • this aspect provides a method for downlink power control of the communication system.
  • the downlink power control method of the communication system includes whether the base station has user power control on the uplink of the user.
  • the result of the test is the downlink power control of the user connected to the user.
  • the downlink power control of the user connected to the user includes increasing the downlink power of the user connected to the user in the case of base-to-user power control.
  • the downlink power control of the user connected to the user includes the downlink power of the user connected to the user without the power control of the user.
  • the downlink power control of the user connected to the user includes reducing the downlink power of the user connected to the user in the same manner as the base station does not have power control within the predetermined same same.
  • the power control is used to increase the downlink power of the user connected to the user in the case of the first user's power control.
  • the downstream power of the user connected to the user is not.
  • the power control is reduced in the case where there is no power control within the predetermined same same, and the downlink power of the user connected to the user is reduced in the same manner as predetermined.
  • the present scheme provides a scheme for the downlink power control of the communication system, and the principle of the scheme is based on whether the user's power control test results in the uplink of the user.
  • Downstream power control of the user The power control information of the user and the high station is fast, and the power of the downlink is reduced, which reduces the internal capacity of the system and improves the system capacity.
  • 1 is a flow of the method for downlink power control of the communication system, and 1 shows that the method includes the following steps S102 to S104.
  • Step S102 standing on the uplink of the user, whether there is power control of the user
  • Step S104 The measured result is the downlink power control of the user connected to the user.
  • the following methods are used to control the downlink power of users connected to the user.
  • the downlink power of the user connected to the user is increased.
  • the downlink power of the user connected to the user is reduced until the power of the combination is reached.
  • the specific offset power control wherein the power control has an ideal phase characteristic, and may be required, ie, To improve the downlink power, connect to the same user in a specific same-station friend power control, have ideal phase characteristics, and can use different offsets to separate different power control information.
  • the method includes the following steps S2 1 to S24
  • Step S2 the form of power control.
  • Zado Ch sequence is used for power control, and different shifts represent different power controls.
  • phase of the zado Ch sequence is ideal, except that the outer balance is 0, mutual In the fixed field, force 0, the other use of the sequence is the sequence is often taught, is smaller than the smaller.
  • the Zado C sequence can refer to the long-term ( o g-Te Evo o T e v o pex, T T ). .
  • the length of the T SC A system can be used up to 864 (hp), and the rest can be used.
  • Step S202 The downlink decision received by the user is power control.
  • Step S23 when the phase of the phase is up, if the power control is within the specified internal power, the increased downlink friend power is maintained downward if the power control is not within the specified power.
  • Step S24 if there is no power control that is not within the specific same, the reduced downlink friend power is determined until the power is reached.
  • the device includes the 42nd, power control 44, below.
  • the power control 44 is in the case of the 42nd to the user's power control, and improves the downlink power of the user connected to the user.
  • the power control 44 is in the same condition as in the 42nd, if there is no power control in the predetermined same, and the downlink power of the user connected to the user is reduced at the same time.
  • the device includes the second 52, 54, as explained below.
  • the second 52 in the downlink power to the connection that needs to be connected, the Tongyou 54 power control 54 is connected to the second 52, to the station friend power control, wherein, the power control Have ideal phase characteristics.
  • the steps in the process can be in the group executable instructions, and the sequence is in the process, but in some cases, the steps shown or can be performed in a different order than this.
  • a general-purpose device which may be concentrated on the device of the sheep or distributed on a plurality of devices, or they may be programmed by the device. , they can be stored in the storage device by the device, or they can be made into separate integrations, or many of them

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé permettant de commander la puissance d'un canal en liaison descendante dans un système de communication en grappe. Une station de base détecte si un signal de commande de puissance provenant d'un utilisateur au sein d'un groupe est émis dans un intervalle en liaison montante correspondant à l'utilisateur du groupe. Selon le résultat détecté, la station de base règle la puissance pour le canal en liaison descendante correspondant aux utilisateurs qui sont connectés à la station de base de l'utilisateur du groupe. L'invention concerne également une station de base et une station mobile. Des applications des solutions de l'invention permettent un ajustement rapide de la puissance de transmission pour le canal en liaison descendante, une réduction des interférences dans le système et une amélioration de la capacité du système, ce qui résout le problème de l'absence d'effet réel et de mauvais effet pour la commande de la puissance du canal en liaison descendante dans le système de communication en grappe pour des technologies associées.
PCT/CN2010/074780 2009-10-22 2010-06-30 Procédé, station de base et station mobile pour commander la puissance d'un canal en liaison descendante dans un système de communication en grappe WO2010145610A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009102075798A CN102045824A (zh) 2009-10-22 2009-10-22 集群通信系统下行信道功率控制的方法、基站及移动台
CN200910207579.8 2009-10-22

Publications (1)

Publication Number Publication Date
WO2010145610A1 true WO2010145610A1 (fr) 2010-12-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/074780 WO2010145610A1 (fr) 2009-10-22 2010-06-30 Procédé, station de base et station mobile pour commander la puissance d'un canal en liaison descendante dans un système de communication en grappe

Country Status (2)

Country Link
CN (1) CN102045824A (fr)
WO (1) WO2010145610A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10911172B2 (en) * 2012-12-28 2021-02-02 Ntt Docomo, Inc. User apparatus, base station, interference reducing method and interference reducing control information notification method
CN105307253B (zh) * 2014-07-29 2019-04-26 普天信息技术有限公司 对大功率集群终端的功率控制方法、系统及装置
WO2016201594A1 (fr) * 2015-06-15 2016-12-22 海能达通信股份有限公司 Procédé, terminal et système permettant à un terminal de grappe de fournir en retour des informations de canal de liaison descendante

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010010686A1 (en) * 1996-09-03 2001-08-02 Tokurou Kubo Mobile communication terminal and transmission power control method therefor
CN1426172A (zh) * 2001-12-12 2003-06-25 华为技术有限公司 一种压缩模式下对下行专用物理信道功率控制的方法
CN1490964A (zh) * 2002-10-16 2004-04-21 华为技术有限公司 一种用于码分多址通信系统的功率控制方法
EP1530307A1 (fr) * 2002-09-19 2005-05-11 Matsushita Electric Industrial Co., Ltd. Procede de commande de puissance d'emission et dispositif de station de base
US20070149234A1 (en) * 2005-12-22 2007-06-28 Niv Bomash System, apparatus and method of estimating quality of signal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1901699A (zh) * 2005-07-22 2007-01-24 华为技术有限公司 在td－scdma系统中实现集群业务的方法
CN101094027B (zh) * 2006-06-20 2010-11-03 上海无线通信研究中心 隐含用户控制信息的签名序列发送结构的发射和接收方法
CN101132206B (zh) * 2007-09-25 2012-04-04 上海华为技术有限公司 功率控制方法与无线设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010010686A1 (en) * 1996-09-03 2001-08-02 Tokurou Kubo Mobile communication terminal and transmission power control method therefor
CN1426172A (zh) * 2001-12-12 2003-06-25 华为技术有限公司 一种压缩模式下对下行专用物理信道功率控制的方法
EP1530307A1 (fr) * 2002-09-19 2005-05-11 Matsushita Electric Industrial Co., Ltd. Procede de commande de puissance d'emission et dispositif de station de base
CN1490964A (zh) * 2002-10-16 2004-04-21 华为技术有限公司 一种用于码分多址通信系统的功率控制方法
US20070149234A1 (en) * 2005-12-22 2007-06-28 Niv Bomash System, apparatus and method of estimating quality of signal

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