baber/WOPTO huggingface dataset:
Patent WO-2018113224-A1 (WO)
Inventor: CAO JIE
IPC: G06T3/40
Filed: 2017-06-23
Abstract: A picture reduction method and device, for use in resolving the technical problem of a low accuracy rate caused by high complexity of a current picture reduction algorithm in the case that current picture reduction is focused on spatial features. The picture reduction method comprises: calculating, according to the size of an input picture of a picture, a reduction factor of the size of an output picture to be outputted (101); determining the reduction factor n (102); if the reduction factor n is greater than 2 and less than 3, or the reduction factor is greater than 3 and less than 4, sequentially performing picture mean value reduction processing, picture edge enhancement processing, and picture bilinear reduction processing on the picture (103); if the reduction factor n is an integer multiple, sequentially performing picture mean value reduction processing and picture edge enhancement processing on the picture (104); if the reduction factor n is greater than 1 and less than 2, performing picture bilinear reduction processing on the picture (105); and outputting the processed picture (106).
Patent WO-2018024077-A1 (WO)
Title: 智能马桶、智能马桶的运行控制方法及装置
Inventor: REN YAN
IPC: E03D9/00
Filed: 2017-07-07
Abstract: 一种智能马桶，包括马桶本体(1)；设置于马桶本体(1)外的尿杯(10)；设置于马桶本体(1)内的尿液采集装置(20)，包括转轴(22)和环绕转轴分布的前段尿暂存杯(211)、中段尿暂存杯(212)和末段尿暂存杯(213)，前段尿暂存杯(211)内设置有第一尿量检测传感器(216)和第一阀门(214)，中段尿暂存杯(212)内设置有第二尿量检测传感器(217)和第二阀门(215)；驱动电机(30)，与转轴(22)传动连接；控制器(31)，被配置为当中段尿暂存杯(212)中的尿量达到第二尿量阈值时，控制驱动电机(30)驱动末段尿暂存杯(213)转动至尿液采集位置以及控制第二阀门(215)开启。还提供了一种智能马桶的运行控制方法及装置。
Patent WO-2018232926-A1 (WO)
Title: Scheduling method and system for parking reservation
Inventor: DU GUANGDONG
IPC: G08G1/14
Filed: 2017-08-17
Abstract: A scheduling method and system for a parking reservation, the method comprising the following steps: receiving parking reservation information and vehicle position information, and determining an average vehicle speed (step 1); using the vehicle position information and parking lot position information to determine a driving route between a vehicle and a parking lot, and further determining the time when the vehicle arrives at the parking lot (step 2); and ranking vehicles which have reserved parking spaces according to the sequence of time when the vehicles arrive at the parking lot (step 3). The system comprises a parking console, a network server and a positioning apparatus, and the parking console and the positioning apparatus are respectively in wireless communicative connection to the network server. The parking console comprises an acquisition module, a determination module and a scheduling module. The present invention makes a break through with a solution for planning parking according to the time of reservation, and provides a scheduling method and system for parking reservations. By means of acquiring vehicle position information and average vehicle speed information, the time when a vehicle arrives at a parking lot may be accurately determined and the utilization rate of parking spaces may be improved.
Patent WO-2018176730-A1 (WO)
Title: 一种动态带宽分配方法、装置及计算机存储介质
Inventor: LI NA
IPC: H04L47/76
Filed: 2017-08-28
Abstract: 本发明实施例公开了一种动态带宽分配方法、装置及计算机存储介质，所述方法包括：根据光网络单元上报的带宽请求值及分配下发给光网络单元的带宽值，获得光网络单元的实际流量；根据获得的所述光网络单元的实际流量调整分配给光网络单元的带宽值。
Patent WO-2019051657-A1 (WO)
Title: Indoor and outdoor positioning method and system for terminal device
Inventor: ZHAO GUORU
IPC: H04W64/00
Filed: 2017-09-13
Abstract: An indoor and outdoor positioning method and system for a terminal device. The positioning method comprises: step a, receiving positioning data of a terminal device; step b, determining whether a positioning manner of the terminal device is a GPS positioning manner according to the received positioning data; if the positioning manner of the terminal device is not the GPS positioning manner, converting the positioning data into GPS positioning data, and performing step c; if the positioning manner of the terminal device is the GPS positioning manner, performing step c; and step c, converting the positioning data into map coordinates, and displaying the map coordinates in the map, so as to position the terminal device. In the positioning method and system, multiple positioning manners, such as GPS, WIFI or base station positioning manners, are used, it is ensured that positioning data of the terminal device is obtained by means of WIFI or a base station if valid GPS positioning data is not obtained, thereby implementing the accurate indoor and outdoor positioning.
Patent WO-2018113393-A1 (WO)
Title: 报文传输方法及混合接入网关
Inventor: CHENG JIAN
IPC: H04L47/32
Filed: 2017-10-12
Abstract: 本发明是关于一种报文传输方法及混合接入网关，混合接入网关接收网络侧设备发送的目的地为家庭网关的报文；在检测到第一传输链路出现拥塞且第二传输链路未出现拥塞时，获取第一传输链路的第一CIR及获取第二传输链路的第二CIR，并且将该报文划分为第一类报文和第二类报文，并将第一类报文通过第一传输链路传输，经第二类报文通过第二传输链路传输。这样可以保证在第一传输链路出现拥塞而第二传输链路未出现拥塞时，将第一传输链路和第二传输链路混合接入混合接入网关，混合接入网关通过合理分配第二传输链路传输的报文，可以控制第一传输链路和第二传输链路的单向时延，避免出现由于排序缓存溢出而导致的丢包问题，大大提高了链路传输的传输效率。
Patent WO-2018149165-A1 (WO)
Title: Procédés et systèmes de détermination de numérologie de systèmes de communication sans fil
Inventor: ZHANG LIQING
IPC: H04W72/04
Filed: 2017-10-17
Abstract: L'invention concerne un procédé, un système et un dispositif permettant d'obtenir un espacement de sous-porteuse de base, ou une bande passante de canal, ou une bande passante de transmission maximale, ou un ensemble d'espacements de sous-porteuses utilisable par l'intermédiaire d'une règle de mappage prédéfinie. Dans un mode de réalisation, un procédé dans un composant de réseau destiné à déterminer une numérologie de système consiste à déterminer, par le composant de réseau, une ou plusieurs options d'espacements de sous-porteuses à partir d'un ensemble d'espacements candidats de sous-porteuses qui est associé à une bande de fréquences porteuses. Le procédé consiste également à transmettre, par le composant de réseau, un signal indiquant à un ou plusieurs UE une ou plusieurs options d'espacements de sous-porteuses à partir de l'ensemble d'espacements candidats de sous-porteuses.
Patent WO-2019095239-A1 (WO)
Title: 用于传输控制信息的方法、网络设备和终端设备
Inventor: LIN YANAN
IPC: H04W72/04
Filed: 2017-11-16
Abstract: 本申请实施例涉及用于传输控制信息的方法、网络设备和终端设备。该方法包括：确定终端设备的上行控制信道序列的配置，该上行控制信道序列的配置包括初始循环移位值、循环移位差值和循环移位值的个数中的至少一个；根据该上行控制信道序列的配置，确定该上行控制信道序列的至少两个循环移位值；使用该至少两个循环移位值中的至少一个，确定该终端设备发送的UCI。本申请实施例的用于传输控制信息的方法、网络设备和终端设备，减少PUCCH的配置集合，减少物理层开销，也可以在有限的物理层指示开销下，增加PUCCH资源配置的灵活性。
Patent WO-2019104519-A1 (WO)
Title: Gesture buttons
Inventor: ZHANG BING
IPC: G06F3/0482
Filed: 2017-11-29
Abstract: In one example, a system for gesture buttons can include a processing resource and a non-transitory computer readable medium having stored thereon instructions to cause the processing resource to perform a first function in response to a gesture provided to the user interface, display a gesture button on the user interface, and perform a second function that is different than the first function in response to the gesture provided on the gesture button displayed on the user interface.
Patent WO-2018196377-A1 (WO)
Title: 显示面板、像素驱动电路及其驱动方法
Inventor: CHEN XIAOLONG
IPC: G09G3/32
Filed: 2017-11-30
Abstract: 一种像素驱动电路、像素驱动方法(S100)和显示面板(100)，像素驱动电路包括驱动晶体管(T0)、第一开关(T1)、第二开关(T2)、第三开关(T3)、第四开关(T4)、第一电容(C11)、第二电容(C12)、初始电压信号端(VINI)、数据电压信号端(VDATA)和驱动电压信号端(OVDD)。驱动晶体管(T0)设有栅极端(g)、源极端(s)和漏极端(d)。栅极端(g)与漏极端(d)之间设置第一开关(T1)，且栅极端(g)通过第二开关(T2)连接于初始电压信号端(VINI)。源极端(s)通过第三开关(T3)和第四开关(T4)分别连接于驱动电压信号端(OVDD)和数据电压信号端(VDATA)。第一电容(C11)连接于栅极端(g)和接地端之间，第二电容(C12)连接于栅极端(g)和源极端(s)之间。
Patent WO-2018133583-A1 (WO)
Title: 设备上安全空间的管理方法、装置及系统
Inventor: SHA SHUANG
IPC: H04W12/084
Filed: 2017-12-12
Abstract: 提供了一种设备上安全空间的管理方法、装置及系统，其中该方法包括：用户终端UE验证接入设备的第一身份信息；当第一身份信息为合法信息时，UE为接入设备分配允许访问UE的安全空间的权限，并与接入设备建立连接。
Patent WO-2018233247-A1 (WO)
Title: Preparation method for filler of washable pillow inner and industrial washing process therefor
Inventor: ZHANG HUA
IPC: D04H1/02
Filed: 2017-12-18
Abstract: A preparation method for the filler of a washable pillow inner and an industrial washing process therefor. The filler of a pillow inner is formed by mixing 45-55 parts by weight of 3.6dtex×30mm terylene/regenerated cellulose "∞ connected coiled-coil" superfine fibers, 25-35 parts by weight of 3.6dtex×51mm hollow fibers, and 15-25 parts by weight of 1.2dtex×38mm fine denier fibers. The present invention resolves the problem of poor washable performance of the pillow inner used for hotels, and improves the appearance quality of the pillow inner such that fibers do not wind, do not clump together and do not harden. Therefore, the pillow inner is more resistant to washing, and is fluffier and softer.
Patent WO-2019126913-A1 (WO)
Inventor: WANG FENG (WALTER)
IPC: C08F2/22
Filed: 2017-12-25
Abstract: The invention relates to a method for preparing an aqueous dispersion of a copolymer comprising polymerized comonomers vinyl ester and ethylene, characterized in that ethylene and the vinyl ester are charged in multiple steps, where the initial charge ratio of ethylene to the vinyl ester is 0.2 to 0.6:1; and the vinyl ester is copolymerized with ethylene in the presence of a) anionic surfactant 1, which has the following chemical formula: C  n H  2n+1 O-EO  x -PO y -Q (I), where n is an integer between 6 and 44, inclusive; x is an integer between 0 and 11, inclusive; y is an integer between 0 and 11, inclusive; at least one of x and y is non-zero; and Q is any one selected from among sulphate, sulfonate, carboxylate and phosphate salts.
Patent WO-2019127591-A1 (WO)
Inventor: XU BAOAN
IPC: F16L15/02
Filed: 2017-12-31
Abstract: Disclosed is a threaded screwable telescopic sealing pipe fitting, comprising a recessed tooth tip end cover threaded pipe composed of a recessed tooth tip end cover (2) arranged at one end thereof and an external threaded pipe (3) connected to the end cover. The recessed tooth tip end cover threaded pipe and a tooth-tip base threaded pipe (7) are sleeved on each other by means of relative screwing, and the length of an external thread of the recessed tooth tip end cover threaded pipe corresponds to the length of an internal thread of the tooth-tip base threaded pipe (7); and a corrugated telescopic pipe (1) is arranged in the recessed tooth tip end cover threaded pipe and the tooth-tip base threaded pipe (7). A clamping ring (11) is arranged on a pipe head at one end of the corrugated telescopic pipe (1) or on each of pipe heads at two ends thereof. The effective telescopic lengths of the tooth-tip base threaded pipe (7) and the recessed tooth tip end cover threaded pipe match the effective telescopic length of the corrugated telescopic pipe (1). The thread screwing telescopic sealing pipe fitting enables the telescopic displacement between the recessed tooth tip end cover threaded pipe and the tooth-tip base threaded pipe (7) by screwing. The sealing pipe fitting is simple and firm in structure, has a large range of a permissible mounting tolerance and is easy to dismount and mount. The threaded screwable telescopic sealing pipe fitting can tightly abut against and seal a vacuum heat collecting pipe with water inlet and outlet pipe heads arranged at two ends thereof.
Patent WO-2019090988-A1 (WO)
Title: 一种基于动态规则的密码学属性基访问控制方法与系统
Inventor: ZHU YAN
IPC: H04L29/06
Filed: 2018-01-31
Abstract: 本发明主要属于信息技术领域，具体涉及一种基于动态规则的密码学属性基访问控制方法与系统。在所述系统中受保护的客体以加密形式存储，只有满足属性基访问控制中访问策略要求的访问才能获得授权而解密客体，能够保证在不安全环境下的数据能够按照安全策略被授权访问，同时也支持策略可扩展与属性的动态获取。本发明所述基于动态规则的密码属性基访问控制方法与系统已经脱离传统的加密系统框架，是一种全新的支持密码学判定的属性基访问控制模型、方法和系统，可实现更加安全、多样、动态、灵活的访问授权，适用于大规模组织或信息系统，可以应用到诸如云计算、网格计算、分布式计算等环境。
Patent WO-2019173956-A1 (WO)
Inventor: LI JIA
IPC: B22C15/24
Filed: 2018-03-12
Abstract: 本发明公开了一种电驱合模制芯机，包括机架、下部移动小车、上部移动小车、上芯盒提升机构、射砂单元、吹气单元，其特征在于：所述上芯盒提升机构主要由设置在机架内的四导杆立柱、分别通过四组齿轮传动机构与四导杆立柱上的齿条配合的上芯盒提升框、上芯盒伺服电机和同步机构构成；设有上压头机构，所述上压头机构位于上芯盒提升机构的上方并具有升降驱动机构，所述升降驱动机构包括至少一套由伺服电机和丝杆组成的电缸、至少一对机械连杆机构，所述电缸的输出经所述机械连杆机构作用于所述上压头机构上。本发明只采用电驱及气动控制实现制芯机的动作及功能，提升了制芯机的运动平稳性、同步性及高效性；同时，合模锁紧更为可靠。
Patent WO-2019114146-A1 (WO)
Inventor: YANG GUOHUA
IPC: C12Q1/6855
Filed: 2018-03-23
Abstract: L'invention concerne une méthode pour enrichir des régions cibles de gène et un kit de construction de bibliothèque. La méthode de la présente invention réalise l'enrichissement de régions cibles de gène au moyen d'une amplification linéaire à amorce unique et à l'aide de la fidélité d'une ADN polymérase haute fidélité.
Patent WO-2019183790-A1 (WO)
Title: Outdoor optical fiber connector
Inventor: HU MINGZHEN
IPC: G02B6/38
Filed: 2018-03-27
Abstract: An outdoor optical fiber connector, comprising: a female head flange assembly (100), a male head assembly (200), an insertion core fixing assembly (300), and a docking assembly, the docking assembly comprising a pluggable assembly (400) and a threaded locking member (500), a docking structure with the pluggable assembly (400) and the threaded locking member (500) respectively being arranged on the female head flange assembly (100), such that the female head flange assembly (100) can be quickly plugged with the male head assembly (200) by means of the pluggable assembly (400) and can be locked with the male assembly (200) in a threaded manner by means of the threaded locking member (500), at least one insertion core fixing assembly (300) being arranged in both the female head flange assembly (100) and the male head assembly (200). The connector provides multiple docking modes, meeting different installation requirements; and the connector is an ultra-small outdoor connector, having a compact overall space and stable mechanical performance, meeting IP68 waterproof/dustproof requirements, and having a convenient and fast installation.
Patent WO-2019191926-A1 (WO)
Title: Techniques and apparatuses for transmitting data in a control channel
Inventor: XU CHANGLONG
IPC: H04W48/12
Filed: 2018-04-04
Abstract: Aspects of the disclosure relate to wireless communication. In some aspects, a user equipment (UE) may receive an indicator, in a physical downlink control channel (PDCCH) payload, that indicates whether the PDCCH payload includes data or downlink control information (DCI) for obtaining the data; and obtain at least one of the data or the DCI based at least in part on the indicator. In some aspects, a UE may determine whether to transmit data in a physical uplink control channel (PUCCH) payload or a physical uplink shared channel (PUSCH) payload based at least in part on a size of the data; may transmit an indicator, in the PUCCH payload, that indicates whether the PUCCH payload includes the data or uplink control information (UCI); and may selectively transmit the data in the PUCCH payload or the PUSCH payload based at least in part on the size of the data.
Patent WO-2019174098-A1 (WO)
Title: Street lamp and lamp post-based system and method for constructing smart city internet of things
Inventor: YUAN XIUTING
IPC: F21S13/10
Filed: 2018-04-17
Abstract: The present application relates to a street lamp and lamp post-based system and method for constructing a smart city Internet of Things. The system comprises one or more data collection components, one or more detachable street lamps, a repeater, a hub, a cloud server, and a terminal; the data collection component is communicationally connected to the detachable street lamp, the detachable street lamp is communicationally connected to the repeater, the repeater is communicationally connected to the hub, the hub is communicationally connected to the cloud server, and the cloud server is communicationally connected to the terminal. The present invention can not only improve the efficiency of city monitoring, but also save a lot of costs.
Patent WO-2018233387-A1 (WO)
Title: Naked-eye 3d display method and device
Inventor: YU YANG
IPC: H04N13/00
Filed: 2018-05-07
Abstract: A naked-eye 3D display method, comprising: setting the number of multiple viewpoints within a viewing range of a preset viewing distance, and determining a phase of each viewpoint and a viewpoint map corresponding to the phase according to the number of viewpoints; obtaining the spatial positions of the eyes within a screen viewing area, and calculating a phase of a left eye viewpoint and a phase of a right eye viewpoint according to the spatial positions; calculating the phase difference between the phase of the right eye viewpoint and the phase of the left eye viewpoint, and adjusting a viewpoint map corresponding to the phase of the left eye and a viewpoint map corresponding to the phase of the right eye according to the phase difference.
Patent WO-2019001144-A1 (WO)
Title: Common-emitter common-base transistor having multiple epitaxial layers
Inventor: LI BIN
IPC: H01L29/06
Filed: 2018-05-08
Abstract: Disclosed in the present invention is a common-emitter common-base compound semiconductor transistor having multiple epitaxial layers. The transistor comprises: a substrate; and a first n-type doped layer, a first p-type doped layer, a second n-type doped layer, a third n-type doped layer, a second p-type doped layer, and a fourth n-type doped layer which are sequentially stacked on the substrate from bottom to top. From bottom to top, the lengths of the doped layers are progressively decreased, so that the doped layers can be in a stepped arrangement; metal terminals are respectively provided on exposed step surfaces of the doped layers; the metal terminals of the second n-type doped layer and the third n-type doped layer are electrically connected. According to the present invention, a common-emitter common-base structure is achieved by means of a stepped, stacked, and vertical epitaxial structure, and the breakdown voltage of a common-emitter device at the bottom and the breakdown voltage of a common-base device at the top are combined; thus, the usage range of the voltage is greatly improved; compared with a conventional horizontal placement mode, greater area efficiency and cost effectiveness can be achieved.
Patent WO-2019037474-A1 (WO)
Title: Display device
Inventor: SUN RUI
IPC: H04N1/04
Filed: 2018-05-11
Abstract: Disclosed is a display device. The display device comprises: a display assembly, an imaging assembly, and a put area indication assembly, wherein the imaging assembly is communicationally connected to the display assembly; the put area indication assembly is configured to indicate a put area of an object to be imaged; an imaging area of the imaging assembly is the put area indicated by the put area indication assembly; the imaging assembly is configured to image the object to be imaged in the put area; and the display assembly is configured to display an image generated by the imaging assembly.
Patent WO-2019222875-A1 (WO)
Title: Techniques and apparatuses for configuring demodulation reference signals in grant-free uplink non-orthogonal multiple access systems
Inventor: LI QIAOYU
IPC: H04L29/06
Filed: 2018-05-21
Abstract: Some techniques and apparatuses described herein improve network performance by reducing the likelihood of demodulation reference signal (DMRS) collisions between multiple user equipment (UEs) that repeat DMRS sequences across multiple subframes in a grant-free uplink non-orthogonal multiple access (NOMA) communication system. For example, some techniques and apparatuses described herein permit a UE to select a DMRS sequence and/or an orthogonal cover code (OCC) based at least in part on a transmission opportunity in which the UE is to begin transmission of the DMRS sequence, thereby reducing a likelihood of collision across transmission opportunities. In this way, cross-subframe DMRS collisions may be reduced and cross-subframe CSI estimation may be improved, thereby leading to more accurate CSI estimations and improving network performance. Furthermore, some techniques and apparatuses described herein reduce complexity associated with detecting DMRS sequences by reducing a number of blind detection hypothesis operations performed by a base station.
Patent WO-2018223835-A1 (WO)
Title: 显示基板及其驱动方法和显示面板
Inventor: HUANG WEIYUN
IPC: H01L51/52
Filed: 2018-05-21
Abstract: 本公开的实施例公开了一种显示基板、显示面板及驱动方法，该显示基板包括衬底基板和位于衬底基板上的多个第一电极和多个第二电极，第一电极和第二电极交叉设置且相互绝缘，每个第一电极包括多个第一子电极，第一子电极之间连接，每个第二电极包括多个第二子电极，第二子电极之间连接；第一子电极用于在显示阶段加载公共电极电压以及在触控阶段加载触控驱动电压；第二子电极用于在显示阶段加载公共电极电压以及在触控阶段输出触控感应电压。
Patent WO-2019205207-A1 (WO)
Title: Induction cooker with linkage between range hood and stove, and system for linkage between range hood and stove
Inventor: CHEN ZHIQIANG
IPC: F24C15/10
Filed: 2018-05-22
Abstract: Disclosed are an induction cooker with linkage between a range hood and a stove and a system for linkage between a range hood and a stove. The induction cooker comprises an induction cooker display panel (100). The induction cooker display panel (100) is internally provided with a first controller (101), a flame strength regulation switch (102), a first Bluetooth communication module (103) and a first Bluetooth module (104), wherein the flame strength regulation switch (102) and the first Bluetooth communication module (103) are respectively connected to the first controller (101); the flame strength regulation switch (102) is used for controlling a switch state and a flame strength level state of the induction cooker; and the first Bluetooth module (104) is used for sending the received current switch state and flame strength level state of the induction cooker to a second Bluetooth communication module (201) on a range hood (20) used with the induction cooker. The induction cooker with linkage between a range hood and a stove and the system for linkage between a range hood and a stove have the characteristics of high reliability, low cost, good universality, etc.
Patent WO-2018228218-A1 (WO)
Title: 身份识别方法、计算设备及存储介质
Inventor: WANG DAFENG
IPC: G06K9/00
Filed: 2018-06-01
Abstract: 本申请实施例公开了身份识别方法、计算设备及存储介质，涉及图像分析技术领域。所述方法包括：获取记录有待识别个体的目标动作的视频；基于所述视频，获取所述目标动作的特征点的运动轨迹；根据所述运动轨迹的轨迹特征和样本数据，确定所述待识别个体的身份，其中，所述样本数据包括：至少一个样本个体的身份以及对应的样本运动轨迹的轨迹特征。本申请实施例提供了一种基于动作对个体进行身份识别的技术方案，丰富了对个体进行身份识别的技术手段。
Patent WO-2019068242-A1 (WO)
Title: Optical fibre connector
Inventor: HU MINGZHEN
IPC: G02B6/38
Filed: 2018-06-05
Abstract: Disclosed is an optical fibre connector, comprising a first housing, a second housing and an unlocking housing. The first housing and the second housing are matched in a plug-in manner, and locked and unlocked via the unlocking housing. The unlocking housing is movably limited on the second housing by means of a stopping structure. The arrangement of the stopping structure means that the unlocking housing is not prone to falling off from the second housing. By means of the stopping structure, an unlocking action for the unlocking housing on the second housing is an axial push/pull unlocking. The unlocking housing is easy to mount, and unlocking is convenient and rapid.
Patent WO-2018233486-A1 (WO)
Title: Beamforming method and apparatus, base station, and storage medium
Inventor: XIAO HUI
IPC: H04B7/06
Filed: 2018-06-06
Abstract: Disclosed are a beamforming method and apparatus, a base station, and a storage medium. The method comprises: obtaining a beamforming parameter of a first carrier; and determining a beamforming parameter of a second carrier according to the beamforming parameter of the first carrier, and performing beamforming of the second carrier, wherein the first carrier is a main carrier and the second carrier is a secondary carrier, or the first carrier is a secondary carrier and the second carrier is a main carrier.