Abstract: A method of risk assessment of an entity includes converting one or more element of risk information into a character string and combining the character string of each element of risk information into a continuous character string to produce a signature containing the risk information for the entity. The method may include one or more of the following or above features. For example, the risk information may be parsed to produce the one or more element of risk information. As another example, the character string may include a numeric code such that converting one or more element of risk information into a character string comprises converting one or more element of risk information into a numeric code.

Abstract: Embodiments of the present invention relate to the field of wireless communication technologies, and provide a transceiving module, an antenna, a base station and a signal receiving method, which are capable of implementing receiving of four dual-band signals and improving uplink network performance of a base station. The transceiving module includes a combining-splitting network, a set of transceiving unit arrays and a signal processing unit that are connected to each other in sequence, and further includes a combining network setting with a connection point connected to another transceiving module, a co-element filter unit separately connected to the combining-splitting network and the combining network, and a pair of receiving units connected to the signal processing unit, where the pair of receiving units in the transceiving module is disposed with a connection point connected to the another transceiving module. The embodiments of the present invention apply to the field of communication.

Abstract: Embodiments of the present application disclose an antenna device and system. The antenna device includes: an antenna array, configured to radiate or receive an electromagnetic wave signal; a feed network, configured to connect the antenna array and a signal multiplexer; at least one signal multiplexer, configured to divide one path of signal from the feed network into at least two paths of signal, or combine at least two paths of signal to one path of signal and transmit the one path of signal to the feed network; and at least two interface modules connected to a passive module or an active module, is configured to receive a signal sent from the passive module or the active module, or send a signal to the passive module or the active module. The present application can be used for sharing the antenna array and other parts in the active and passive antenna systems.

Abstract: A method, an apparatus, and a transceiver for cancelling multi-carrier transmission interference are provided. The method includes: collecting a high order intermodulation signal in radio frequency signals output by a transmitter; processing the high order intermodulation signal so as to generate a first digital signal; establishing a high order intermodulation model by using the first digital signal and a first baseband signal output by the transmitter; generating a second digital signal by using a coefficient of the high order intermodulation model and a second baseband signal output by the transmitter; and counteracting interference in a digital signal output by a receiver with the second digital signal. By using the present invention, high order intermodulation interference of a multi-carrier transmitter on a receiver can be effectively canceled, and therefore, difficulty in duplexer design and requirements on a suppression degree are reduced.

Abstract: An interference cancellation method and apparatus and also a filter are disclosed to cancel the interfering signals leaked to the receiving channel, and enable the receiving channel to suppress the transmitted signal. The method includes: dividing a transmitted signal into a first transmitted signal and a second transmitted signal, and then inputting the first transmitted signal into a first transmitting filter and inputting the second transmitted signal into a second transmitting filter symmetric to the first transmitting filter; adjusting the first interfering signal and the second interfering signal to make opposite phases of the signals; and combining the signals of opposite phases. The method provided herein can cancel the interfering signals leaked to the receiving channel, the receiving channel suppresses the transmitted signal effectively, and the interference caused by the transmitted signal onto the received signal is cancelled.

Abstract: Embodiments of the present invention provide an antenna apparatus, a base station and a communications system. The antenna apparatus includes: an antenna part, including a common radome; an active part, connected to the antenna part and including at least one active module, where each active module includes at least one antenna element, and an element reflector and a phase shifter and a radio frequency module that are corresponding to each antenna element, where the element reflector of the at least one active module is configured to implement an antenna function; and a common part, connected to the active part and the antenna part, and shared by the at least one active module in the active part, where the common part includes at least one common module. By using the above antenna apparatus, each radio frequency module can be flexibly configured, so as to simplify onsite replacement and maintenance operations.

Abstract: The invention describes systems and methods of determining an entity's identity and assessing risk related to the entity's identity using a computer. A computer-based system including a tracking module, an information module, a risk assessment module, and a memory is provided. The tracking module records encounters of the entity with the computer-based system. The information module gathers and detects changes in biographic information and biometric information relating to the entity's identity. The risk assessment module evaluates risks associated with the entity. The memory stores the information.

Abstract: An antenna apparatus is provided, including: an antenna component that is arranged on a passive side of the antenna apparatus; a radio frequency unit that is arranged on an active side of the antenna apparatus, formed by at least one independent radio frequency module, and connected to the antenna component to form an active antenna, where each radio frequency module includes a radio frequency plate; and a common unit that is arranged on the active side of the antenna apparatus and connected to the radio frequency unit and the antenna component. With the preceding antenna apparatus, each radio frequency module can be flexibly configured, thereby satisfying the requirements for different product portfolios and further simplifying field replacement and maintenance.

Abstract: An antenna system with a beam with an adjustable tilt, including: a transceiver (TRX) array module, an antenna element array module, a feeding network module and a Butler matrix module, is provided. The TRX array module includes multiple active TRX submodules and is configured to generate transmission signals that have undergone digital beam forming. The antenna element array module includes multiple antenna elements and is configured to transmit the transmission signals. The feeding network module is configured to form a vertical beam characteristic of the antenna element array module before the antenna element array module transmits the transmission signals. The Butler matrix module is configured to form a horizontal beam characteristic of the antenna element array module before the antenna element array module transmits the transmission signals.

Abstract: An antenna system is disclosed. In the antenna system, a first antenna element array includes multiple antenna elements, where the antenna elements are configured to receive and transmit signals in two different polarization directions; the first combiner-splitter is configured to combine signals, received by the multiple antenna elements; the active module is configured to receive combined signals in the two different polarization directions, and perform frequency translation on the combined signals to obtain baseband signals; at least one pair of receiving channels in the antenna system corresponds to a second antenna apparatus, and are configured to receive signals output by the second antenna apparatus in the two different polarization directions; and the active module is further configured to perform frequency translation on the signals received by the at least one pair of receiving channels to obtain baseband signals. In this way, the network performance gain is improved.

Abstract: The invention describes systems and methods of assessing risk using a computer. A computer-based system including an enrollment module, a data aggregation module, a risk assessment module, and a memory is provided for assessing risks. The enrollment receives, at a computer, personal information regarding at least one entity. The data aggregation module receives, at the computer, risk information regarding the entity according to the personal information from at least one data source. The risk assessment module converts the risk information to assessment information. The memory stores the personal information, the risk information, and/or the assessment information on the computer.

Abstract: An antenna system is disclosed. In the antenna system, a first antenna element array includes multiple antenna elements, where the antenna elements are configured to receive and transmit signals in two different polarization directions; the first combiner-splitter is configured to combine signals, received by the multiple antenna elements; the active module is configured to receive combined signals in the two different polarization directions, and perform frequency translation on the combined signals to obtain baseband signals; at least one pair of receiving channels in the antenna system corresponds to a second antenna apparatus, and are configured to receive signals output by the second antenna apparatus in the two different polarization directions; and the active module is further configured to perform frequency translation on the signals received by the at least one pair of receiving channels to obtain baseband signals. In this way, the network performance gain is improved.

Abstract: An antenna system, including: a TRX array module, an antenna element array module, a feeding network module and a Butler matrix module, is provided. The TRX array module includes multiple active TRX submodules and is configured to generate transmission signals that have undergone digital beam forming. The antenna element array module includes multiple antenna elements and is configured to transmit the transmission signals. The feeding network module is configured to form a vertical beam characteristic of the antenna element array module before the antenna element array module transmits the transmission signals. The Butler matrix module is configured to form a horizontal beam characteristic of the antenna element array module before the antenna element array module transmits the transmission signals. The antenna system reduces the feeder loss, reduces the labor and equipment costs, and enables the vertical and horizontal beam characteristics of the antenna to be adjusted more conveniently.

Abstract: A method and a device for cancelling transmitter interference in a transceiver, and a transceiver are provided. The method includes: coupling a part of radio frequency signals output from a transmitter, performing amplification, frequency conversion, analog-digital conversion, and digital filtration on the coupled signal by an interference receiver, and outputting a digital signal; performing adaptive equalization on the digital signal output from the interference receiver, and delaying predetermined time of the digital signal output from a receiver, and subtracting the equalized digital signal from the delayed digital signal.

Abstract: A method and a device for cancelling transmitter interference in a transceiver, and a transceiver are provided. The method includes: coupling a part of radio frequency signals output from a transmitter, performing amplification, frequency conversion, analog-digital conversion, and digital filtration on the coupled signal by an interference receiver, and outputting a digital signal; performing adaptive equalization on the digital signal output from the interference receiver, and delaying predetermined time of the digital signal output from a receiver, and subtracting the equalized digital signal from the delayed digital signal.

Abstract: The present invention discloses a distributed base station system as well as its networking method and base band unit. In this system, the base band unit (BBU) and RF unit (RFU) of the base station are separated, and the RFU is equipped with base band RF interfaces for interconnecting the BBU and transmitting data information, thereby forming the base station. Based on the separation of the BBU from the RFU, the BBU capacity is further divided at the same time, and every unit is also arranged independently. The BBU networking and capacity expansion may be achieved with capacity expansion interfaces and base band RF interfaces provided by BBU interface units in flexible and convenient ways.

Abstract: The invention describes systems and methods of assessing risk using a computer. A computer-based system including an enrollment module, a data aggregation module, a risk assessment module, and a memory is provided for assessing risks. The enrollment receives, at a computer, personal information regarding at least one entity. The data aggregation module receives, at the computer, risk information regarding the entity according to the personal information from at least one data source. The risk assessment module converts the risk information to assessment information. The memory stores the personal information, the risk information, and/or the assessment information on the computer.

Abstract: The invention describes systems and methods of determining an entity's identity and assessing risk related to the entity's identity using a computer. A computer-based system including a tracking module, an information module, a risk assessment module, and a memory is provided. The tracking module records encounters of the entity with the computer-based system. The information module gathers and detects changes in biographic information and biometric information relating to the entity's identity. The risk assessment module evaluates risks associated with the entity. The memory stores the information.

Abstract: The present invention discloses a distributed base station system as well as its networking method and base band unit. In this system, the base band unit (BBU) and RF unit (RFU) of the base station are separated, and the RFU is equipped with base band RF interfaces for interconnecting the BBU and transmitting data information, thereby forming the base station. Based on the separation of the BBU from the RFU, the BBU capacity is further divided at the same time, and every unit is also arranged independently. The BBU networking and capacity expansion may be achieved with capacity expansion interfaces and base band RF interfaces provided by BBU interface units in flexible and convenient ways.

Abstract: The present invention discloses a remote radio unit and a base station system. The remote radio unit includes an active part and a passive part, where the active part and the passive part are placed respectively on an active module and a passive module that are independent of each other and the active module and the passive module are connected via a pluggable connecting device. Because the passive part is more reliable and less liable to breakdown than the active part, when the active part needs to be repaired, it is unnecessary to dismantle the entire unit. Therefore, the repair is easier and faster and the repair cost is lower. The operation reliability of the base station system is also improved.