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1. WO2021023054 - UPLINK SUMMATION METHOD AND DEVICE, AND DISTRIBUTED ANTENNA SYSTEM

Publication Number WO/2021/023054
Publication Date 11.02.2021
International Application No. PCT/CN2020/105060
International Filing Date 28.07.2020
IPC
H04B 7/26 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
CPC
H04B 1/40
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
H04B 7/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
H04B 7/2609
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
2603Arrangements for wireless physical layer control
2609Arrangements for range control, e.g. by using remote antennas
H04W 72/044
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
044where an allocation plan is defined based on the type of the allocated resource
H04W 88/085
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
88Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
08Access point devices
085Access point devices with remote components
Y02D 30/70
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
30Reducing energy consumption in communication networks
70in wireless communication networks
Applicants
  • 三维通信股份有限公司 SUNWAVE COMMUNICATIONS CO., LTD. [CN]/[CN]
Inventors
  • 吴文权 WU, Wenquan
  • 王鑫 WANG, Xin
  • 任爱林 REN, Ailin
Agents
  • 杭州华进联浙知识产权代理有限公司 HANGZHOU HUAJIN LIANZHE INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
201910712548.102.08.2019CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) UPLINK SUMMATION METHOD AND DEVICE, AND DISTRIBUTED ANTENNA SYSTEM
(FR) PROCÉDÉ ET DISPOSITIF DE SOMMATION DE COMBINAISON DE LIAISON MONTANTE ET SYSTÈME D'ANTENNES DISTRIBUÉES
(ZH) 一种上行链路合路求和方法、装置及分布式天线系统
Abstract
(EN) The present application relates to an uplink summation method and device, and a distributed antenna system. The method comprises: acquiring an uplink CPRI data stream of a channel of an administration unit (AU) or an extended unit (EU) in a system, performing bit width extension on the CPRI data stream, and performing full precision summation; extracting an orthogonal IQ signal in the CPRI data stream after summation, and determining a reference value and a measured value of the IQ signal so as to determine attenuation values corresponding to fast fading and slow amplification of the IQ signal; generating a gain control table corresponding to CPRI data according to carrier mapping information of the system and the attenuation values; and shifting the IQ signal in the CPRI data stream according to the gain control table, and cutting out the shifted IQ signal according to a preconfigured bit width. The present application solves the problem of partial overflow of a digital bit width in a process of adding uplink digital signals in a distributed antenna system. The scheme is easy to implement, and has low power consumption.
(FR) La présente invention concerne un procédé et un dispositif de sommation de combinaison de liaison montant et un système d'antennes distribuées. Le procédé consiste à : acquérir un flux de données CPRI de liaison montante d'un canal d'une unité d'administration (AU) ou d'une unité étendue (EU) dans un système, réaliser une extension de largeur de bit sur le flux de données CPRI, et effectuer une sommation de précision complète; extraire un signal IQ orthogonal dans le flux de données CPRI après sommation, et déterminer une valeur de référence et une valeur mesurée du signal IQ de façon à déterminer des valeurs d'atténuation correspondant à un évanouissement rapide et à une amplification lente du signal IQ; générer une table de contrôle de gain correspondant aux données CPRI en fonction d'informations de mappage de porteuse du système et des valeurs d'atténuation; et décaler le signal IQ dans le flux de données CPRI selon la table de commande de gain, et découper le signal IQ décalé selon une largeur de bit préconfigurée. La présente invention résout le problème de dépassement partiel d'une largeur de bit numérique dans un processus d'ajout de signaux numériques de liaison montante dans un système d'antennes distribuées. Le schéma est facile à mettre en œuvre, et présente une faible consommation d'énergie.
(ZH) 本申请涉及一种上行链路合路求和方法、装置及分布式天线系统,其中,通过获取系统中主近端单元AU或者扩展单元EU的通道的上行CPRI数据流,对该CPRI数据流进行位宽扩展并进行全精度求和;提取求和后该CPRI数据流中的正交IQ信号,确定IQ信号的基准值和检测值,从而确定与该IQ信号快衰慢放对应的衰减值,依据系统的该载波映射信息和该衰减值,生成与该CPRI数据对应的增益控制表,依据该增益控制表对该CPRI数据流中该IQ信号进行移位,并按预设位宽截取该移位后的该IQ信号,解决了在分布式天线系统中上行链路数字信号相加过程中,产生数字位宽部分溢出问题,该方案实现简单,功耗低。
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