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公开(公告)号：US11445504B2
公开(公告)日：2022-09-13
申请号：US16960074
申请日：2019-03-29
发明人： Fangmin Xu , Junrong Yan , Rulong Chu , Xingbao Ou
摘要： The disclosure discloses a method for distributing pilot frequency in a massive antenna system, including: dividing a pilot frequency set into three sub sets that are intersecting with each other, and then dividing the users of each cell into a cell central user and a cell edge user. The cell central users use an intersection set of three pilot frequency sub sets. The cell edge users of all cells use a difference set, an intersection set and a union set of three pilot frequency sub sets according to a certain rule. When it is designing to implement the pilot resource distribution plan of the massive antenna system, three cells that are adjacent with each other in the system are used as a cluster, and a pilot frequency use plan of any one cluster may be designed according to the method proposed by the disclosure, and then the same design plan is applied to other clusters in the system, and then is adjusted according to the user distribution of each cluster and the business distribution circumstance thereof.
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公开(公告)号：US20220159635A1
公开(公告)日：2022-05-19
申请号：US17435389
申请日：2020-07-28
发明人： Wenquan WU , Xin WANG , Ailin REN
IPC分类号： H04W72/04
摘要： The present disclosure relates to an uplink summation method and device, and a distributed antenna system. The method comprises: acquiring uplink CPRI data streams of a channel of an AU or an EU in a system, performing bit width extension on the CPRI data streams, and performing full precision summation; extracting an orthogonal IQ signal in the CPRI data streams after summation, and determining a reference value and a detected 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 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 streams according to the gain table, and truncating the shifted IQ signal with a preconfigured bit width.
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3.发明申请公开(公告)号：US20170359104A1
公开(公告)日：2017-12-14
申请号：US15540858
申请日：2015-12-23
发明人： Peng PAN , Xin CHEN , Junrong YAN , Yingbiao YAO
IPC分类号： H04B7/024 , H04B17/336 , H04B17/318
CPC分类号： H04B7/024 , H04B7/022 , H04B17/318 , H04B17/336 , H04J11/0056 , H04J2211/001 , H04L1/06
摘要： Provided in the present invention is a method for avoiding downlink interference between an indoor DAS system and a small base station, the steps comprising: step 1: determining an initial access RU, and establishing a signal strength table; step 2: the DAS system, by means of the chosen RU, attempts to establish a downlink with UE 1, and detects the signal to interference plus noise ratio (SINR) value of the downlink signal of UE 1, and comparing same with a preset threshold value γ1; step 3: UE 1 maintains one or a plurality of RU downlinks assigned thereto by the DAS system, during the communication process continuously detects an SINR value at a set time interval, and on the basis of whether same is greater than γ1, ensures a corresponding service quality.
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公开(公告)号：US20220216887A1
公开(公告)日：2022-07-07
申请号：US17603944
申请日：2020-08-03
发明人： Lumin ZHU , Hangdi HONG
摘要： The present application relates to a gain control method and an apparatus, comprising an automatic gain controller. An input power of a PSS in an input signal is detected in real time, a rated power of a downlink PSS that acts as a gain control threshold of the automatic gain controller is acquired, and the automatic gain controller is controlled to adjust a value of gain attenuation according to magnitudes of the input power of the PSS and the rated power of the downlink PSS, which is used to adjust an uplink gain and a downlink gain.
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公开(公告)号：US11265333B2
公开(公告)日：2022-03-01
申请号：US16960028
申请日：2019-03-29
发明人： Wangliang Yu , Bangxiang Ling , Yaxue Xu
摘要： A method of achieving synchronization management of account information of a World Wide Web (WEB) interface in a multi-system Distributed Antenna System (DAS) is provided, including: a security verification initialization of the WEB interface when a single system device in the multi-system DAS is started, a current user information synchronization of a WEB interface between systems in the multi-system DAS, and a key book synchronization of WEB account information between the systems in the multi-system DAS. With the adoption of the method, synchronization management of the account information of the WEB interface in the multi-system DAS may be achieved, so that a management mode is simplified, and management efficiency is improved, information of a current WEB user is synchronized, integration of WEB user statuses and automatic login of multiple systems are achieved.
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公开(公告)号：US20210144553A1
公开(公告)日：2021-05-13
申请号：US17043694
申请日：2019-03-29
发明人： Tuo JIAN , Bin SHEN , Baotian LUO
IPC分类号： H04W12/08 , H04W88/08 , H04W24/02 , H04L12/24 , H04W28/20 , H04W12/069 , H04W12/106
摘要： Disclosed are an authorization management method and system for a signal transmission bandwidth of a DAS communication system. The system consists of an access unit, an extension unit, and a distal unit. The radio frequency access unit is connected to the extension unit. The extension unit is connected to the distal unit. The extension unit mainly implements the extension of a proximal unit port, the extension of a transmission distance, and a transmission bandwidth control function. The distal unit mainly implements the coverage of a radio frequency signal to a specific area. The signal transmission bandwidth of the extension unit is controlled by setting an authorization file formed by authorizing the transmission bandwidth on an extension unit device. When the signal transmission bandwidth configured by a user on the extension unit is not greater than the authorized bandwidth, the configuration becomes effective, and the system performs normal transmission. When the transmission bandwidth configured by the user on the extension unit is greater than the authorized bandwidth, the configuration is limited, the overflow bandwidth is not transmitted, and an abnormal indication is made. The present invention provides a flexible capacity allocation mode for a DAS, which indirectly expands the sales market.
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公开(公告)号：US20210099997A1
公开(公告)日：2021-04-01
申请号：US16960074
申请日：2019-03-29
发明人： Fangmin XU , Junrong YAN , Rulong CHU , Xingbao OU
摘要： The disclosure discloses a method for distributing pilot frequency in a massive antenna system, including: dividing a pilot frequency set into three sub sets that are intersecting with each other, and then dividing the users of each cell into a cell central user and a cell edge user. The cell central users use an intersection set of three pilot frequency sub sets. The cell edge users of all cells use a difference set, an intersection set and a union set of three pilot frequency sub sets according to a certain rule. When it is designing to implement the pilot resource distribution plan of the massive antenna system, three cells that are adjacent with each other in the system are used as a cluster, and a pilot frequency use plan of any one cluster may be designed according to the method proposed by the disclosure, and then the same design plan is applied to other clusters in the system, and then is adjusted according to the user distribution of each cluster and the business distribution circumstance thereof.
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公开(公告)号：US20230075780A1
公开(公告)日：2023-03-09
申请号：US17988779
申请日：2022-11-17
发明人： Chunjiang YANG , Ke TIAN , Gang LIANG
摘要： An uplink data parsing method, an electronic device, and a storage medium are provided. The method includes: in an uplink scheduling process, a PHY layer of a baseband processing unit receiving uplink configuration information transmitted by a MAC layer; the PHY layer receiving uplink baseband signals obtained from a plurality of physical cells; the PHY layer determining, according to a first UE record, whether uplink data of a UE to be parsed is correctly parsed in the uplink scheduling process; if yes, the uplink data of the UE to be parsed being not parsed any more in the uplink scheduling process. The first UE record includes an uplink data parsing result of the UE of which uplink data needs to be parsed in the uplink scheduling process.
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公开(公告)号：US20220263796A1
公开(公告)日：2022-08-18
申请号：US17620134
申请日：2019-12-30
发明人： Qingsong CHEN , Yaxue XU , Ailin REN
IPC分类号： H04L61/5007 , H04L61/5053 , H04L61/5076
摘要： The present disclosure relates to a method and a device for IP address allocation and topology management in a DAS system, and a readable storage medium. The method for IP address allocation and topology management in a DAS system comprises: configuring a port number for a communication port of a host; allocating an address number and one or more port numbers to a first-level slave according to a port number of the host; allocating an address number and one or more port numbers to a next-level slave according to a port number of a previous-level slave; and determining an IP address of a corresponding slave according to a network segment number of the host and the address number of the slave.
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10.发明申请公开(公告)号：US20220217031A1
公开(公告)日：2022-07-07
申请号：US17604757
申请日：2020-12-24
发明人： Xin WANG , Qingsong CHEN , Wenquan WU , Bangxiang LING
摘要： The present application relates to a system and a method for reducing a signal peak-to-average ratio, and a computer-readable storage medium. Before the peaks in the IQ signal are scaled, a scaling effect of peak points scaling on subsequent peak points is estimated and windowing intensities of subsequent peak points are modified. It solves a problem that generated correction coefficients superimpose on top of each other leading to excessive peak shaving. In addition, the above method does not need a lot of multipliers and is easy to be implemented.
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