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1. 发明授权

US10893397B2 Communication method, terminal, and system of variable frame structure for vehicular network 有权
公开(公告)号：US10893397B2
公开(公告)日：2021-01-12
申请号：US16444453
申请日：2019-06-18
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Qiang Li , Peihao Xie , Zengchao Zhang , Fei Shen , Wuxiong Zhang
IPC分类号： H04W4/44 , H04W72/12 , H04L5/00
摘要： The present invention discloses a vehicular network variable frame structure communication method, and also discloses a vehicular network terminal and a vehicular network system for implementing the variable frame structure communication method. The vehicular network variable frame structure communication method reduces a communication time delay by shortening a frame length. Meanwhile, aiming at complicated and variable channel environments of vehicular network and according to a current vehicle running road grade and a road congestion condition, the insertion density and insertion period of the reference signals in subframes are adaptively adjusted, thereby improving the reliability of the entire vehicular network system while reducing the communication time delay.

2. 发明授权

US10321325B2 Inter-network shared frequency spectrum optimization system and method 有权
公开(公告)号：US10321325B2
公开(公告)日：2019-06-11
申请号：US15329802
申请日：2015-12-28
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Xubo Gu , Jiang Wang , Jing Xu , Yong Teng , Kari Horneman
IPC分类号： H04W16/14 , H04W16/10 , H04L12/24 , H04W24/02 , H04W72/04 , H04W16/16 , H04W88/08 , H04W84/04
摘要： Disclosed are an inter-network shared frequency spectrum optimization system and method. In the optimization method, a frequency spectrum resource allocated to a first network in a shared frequency spectrum pool comprises a frequency spectrum resource occupied by an OPEN mode base station in a first cell cluster, and a frequency spectrum resource allocated to a second network in the shared frequency spectrum pool comprises a frequency spectrum resource occupied by an OPEN mode base station in a second cell cluster, wherein the frequency spectrum resource occupied by each OPEN mode base station in the first cell cluster and the frequency spectrum resource occupied by each OPEN mode base station in the second cell cluster have the same size. The present invention improves the frequency spectrum efficiency and the base station service quality are improved.

3. 发明申请

US20160020893A1 UPLINK AND DOWNLINK SLOT TIME RESOURCE CONFIGURATION METHOD BASED ON INTERFERENCE PERCEPTION IN TIME DIVISION DUPLEX SYSTEM 有权
标题翻译：基于时间分割双工系统干扰的UPLINK和DOWNLINK时隙资源配置方法
公开(公告)号：US20160020893A1
公开(公告)日：2016-01-21
申请号：US14761609
申请日：2013-12-19
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： XIAO TONG , JIANG WANG , TAO PENG , JING XU , YONG TENG , HORNEMAN KARI
IPC分类号： H04L5/14 , H04B17/345 , H04W72/04
CPC分类号： H04L5/14 , H04B7/2643 , H04B7/2656 , H04B17/345 , H04L5/0073 , H04W24/10 , H04W72/0406 , H04W72/0446 , H04W72/082
摘要： The invention provides an uplink and downlink slot time resource configuration method based on interference perception in a TDD system, which is applied to a communication network comprising a source base station, a target base station, as well as a user terminal in the source base station and a user terminal in the target base station, and the method comprises: judging whether the base station-to-base station interference is larger than a preset threshold value or not, if yes, canceling the uplink and downlink slot time resource configuration, and if no, continuously executing the next step; judging whether the interference measurement of the target base station on the user terminal in the source base station is larger than a preset threshold value or not, if no, executing the uplink and downlink slot time resource configuration, and if yes, executing the next step; judging whether the interference measurement of the source base station on the user terminal in the target base station is larger than a preset threshold value or not, if yes, canceling the uplink and downlink slot time resource configuration, and if no, executing the uplink and downlink slot time resource configuration. By the information interaction between the base stations, the flexible configuration of uplink and downlink slot time resources is realized, and the crossing slot time interference problem brought by the flexible configuration of the uplink and downlink slot time resources in different network structures is solved.
摘要翻译：本发明提供了一种基于TDD系统中的干扰感知的上行链路和下行链路时隙资源配置方法，该方法应用于包括源基站，目标基站以及源基站中的用户终端的通信网络以及所述目标基站中的用户终端，并且所述方法包括：判断所述基站对基站的干扰是否大于预设的阈值，如果是，则取消所述上行链路和下行链路时隙时间资源配置，以及如果否，则继续执行下一步骤; 判断源基站中用户终端上的目标基站的干扰测量是否大于预设阈值，否则执行上行链路和下行链路时隙时间资源配置，如果是，则执行下一步骤 ; 判断目标基站中的用户终端上的源基站的干扰测量是否大于预设阈值，否则，取消上行链路和下行链路时隙时间资源配置，如果否，则执行上行链路和下行时隙时间资源配置。通过基站之间的信息交互，实现了上行链路和下行链路时隙资源的灵活配置，解决了不同网络结构中上行链路和下行链路时隙资源灵活配置带来的交叉时隙时间干扰问题。

4. 发明授权

US10470057B2 Cell clustering method, spectrum overlapping multiplexing method based on method, and device thereof 有权
公开(公告)号：US10470057B2
公开(公告)日：2019-11-05
申请号：US15854788
申请日：2017-12-27
申请人： Shanghai Research Center for Wireless Communications
发明人： Bi-yan Wang , Hua-jun Wang , Kai Li , Yang Yang , Hai-feng Wang
IPC分类号： H04W16/32 , H04W16/02 , H04W72/04 , H04W72/08
摘要： The present invention discloses a cell clustering method, used to classify multiple small cells into N clusters and including the following steps: based on throughputs, respectively placing N small cells having a largest interference with each other into the N clusters to initialize the clusters; and based on the throughputs, separately adding a small cell having a smallest interference with the clusters into the clusters, and repeating the step until all the small cells are allocated into the clusters. The present invention further discloses a spectrum overlapping multiplexing method based on the cell clustering method. According to the present invention, the cell system average spectral efficiency and the cell edge spectral efficiency in an ultra dense network can be improved.

5. 发明授权

US10362551B2 Calibration method for parallel multi-channel wireless channel measurement and system for the same 有权
公开(公告)号：US10362551B2
公开(公告)日：2019-07-23
申请号：US15669931
申请日：2017-08-06
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Zhong-fei Cai , Yun-song Gui , Hao-wen Wang , Ming-tuo Zhou , Yang Yang , Hai-feng Wang
IPC分类号： H04W56/00 , H04J13/18 , H04B17/00 , H04B17/14 , H04B17/21 , H04B1/69 , H04J13/00 , H04B17/30
摘要： The present invention discloses a calibration method for parallel multi-channel wireless channel measurement and a calibration system thereof. The transmitting end and the receiving end are disconnected, and are respectively connected to the calibration receiving channel and the calibration transmitting channel, and the calibration receiving channel/calibration transmitting channel cooperates with a measurement channel in air interface measurement, to calibrate a channel response characteristic of the transmitting end and the receiving end. By means of the present invention, a current channel response characteristic between multiple channels can be online supervised in real time, so as to ensure that a measurement error because of an impact of mutual interference between multiple channels can be avoided in the channel measurement process.

6. 发明授权

US10342030B2 Network optimization method for large-scale MIMO network and base station thereof 有权
公开(公告)号：US10342030B2
公开(公告)日：2019-07-02
申请号：US15669971
申请日：2017-08-07
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Kai Li , Hui-yue Yi , Jiang Wang , Yang Yang , Hai-feng Wang
IPC分类号： H04W24/02 , H04W72/08 , H04W72/12
摘要： The present invention discloses a network optimization method for a large-scale MIMO network and a base station thereof. The base station enables, according to a user minimum SINR threshold of each user in a preset cell, instantaneous spectral efficiency of the cell at a specific moment to approximate or reach a maximum value. In the present invention, a newly added user minimum SINR threshold parameter is configured, and a characteristic of a concave function is used, so that average spectral efficiency and edge spectral efficiency of each cell are simply and effectively controlled, so as to achieve an objective of coordination adjustment of network capacity and network coverage.

7. 发明授权

US10264603B2 Coordination method between access points using unlicensed frequency band 有权
公开(公告)号：US10264603B2
公开(公告)日：2019-04-16
申请号：US15368238
申请日：2016-12-02
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Meng-Ying Zhang , Yang Li , Ting Zhou , Yang Yang , Honglin Hu , Haifeng Wang
IPC分类号： H04W74/02 , H04W76/28 , H04W72/12 , H04W16/14 , H04W74/00 , H04W84/04 , H04W84/12 , H04W88/02 , H04W88/08 , H04W74/08 , H04W88/10
摘要： A coordination method between access points using unlicensed frequency bands and a network control node using this method are disclosed. The method includes: the first access points adjusting transmission parameters thereof to increase channel access probability of the first access points; and the second access points adjusting transmission parameters thereof to decrease the channel access probability of the second access points; wherein the degree to which channel access probability of the third access points is decreased due to adjustment of the transmission parameters of all the first access points is equivalent to the degree to which the channel access probability is increased due to adjustment of the transmission parameters of all the second access points. Through coordination between multiple access points in the same network, fair coexistence with other networks using unlicensed frequency bands can be ensured while user QoS is improved.

8. 发明授权

US10182448B2 Inter-network interference coordination method 有权
公开(公告)号：US10182448B2
公开(公告)日：2019-01-15
申请号：US15329523
申请日：2015-12-22
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Yuanping Zhu , Jiang Wang , Qiaoling Yu , Yong Teng , Kari Horneman
IPC分类号： H04W72/08 , H04W16/14 , H04L5/00 , H04W16/10
摘要： Disclosed is a network interference coordination method in a co-primary spectrum sharing scenario. The method comprises the following steps: a first network and a second network negotiate an inter-network shared band, the shared band being in a shared spectrum pool; the first network evaluates inter-network interference; the first network determines whether to perform internal coordination, if internal coordination is performed, the first network performs internal coordination; if internal coordination is not performed, request the second network to perform inter-network interference coordination; the second network determines whether to perform internal coordination, if internal coordination is performed, the second network performs internal coordination; and if internal coordination is not performed, go back to the step of negotiating, by a first network and a second network, an inter-network shared band. The present invention can fairly and properly implement inter-network interference coordination in the co-primary spectrum sharing scenario.

9. 发明授权

US10172149B2 Uplink resource scheduling method, terminal and base station 有权
公开(公告)号：US10172149B2
公开(公告)日：2019-01-01
申请号：US15165796
申请日：2016-05-26
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Yu Zeng , Yuanping Zhu , Ting Zhou , Yang Yang , Honglin Hu , Haifeng Wang
IPC分类号： H04W4/00 , H04W72/12 , H04W72/04 , H04W88/06 , H04W84/12
摘要： The present invention discloses an uplink resource scheduling method, and also discloses a corresponding terminal and base station. In the method, a base station calculates an uplink resource required to grant to a terminal by a base station according to a split bearer data ratio, and then performs uplink resource grant.

10. 发明授权

US10142986B2 Uplink resource sharing method, base station and terminal 有权
公开(公告)号：US10142986B2
公开(公告)日：2018-11-27
申请号：US15166836
申请日：2016-05-27
申请人： SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
发明人： Han Yu , Rui Wang , Yameng Li , Yang Yang , Honglin Hu , Haifeng Wang
IPC分类号： H04W72/14 , H04W72/04
摘要： The present invention discloses an uplink resource sharing method, base station and terminal, wherein, the uplink resource sharing method comprises: performing the LBT on a granted subframe, allocated to a terminal by a base station, by the terminal; transmitting data if the LBT is finished on the granted subframe; and performing the LBT on another subframe if the LBT is not finished on the granted subframe. The present invention solves the problem of resource waste caused by the fact that the terminal cannot finish LBT in a frame allocated to the frame by a base station, and reduces a probability of increase of an uplink grant number caused by failing of uplink scheduling.

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