Patents Assigned to COMBA TELECOM SYSTEMS (GUANGZHOU) LTD.
  • Patent number: 11012150
    Abstract: An autonomous failure recovery method and a system for a fiber-optic communication system. The method comprises acquiring a real-time operation timing sequence of a digital high-speed serial transceiver of a fiber-optic communication system, and comparing the operation timing sequence against a pre-stored reference timing sequence of normal operation of the serial transceiver; when the operation timing sequence is inconsistent with the reference timing sequence, determining that failure of an optical path of the fiber-optic communication system has occurred; sending a pre-determined autonomous recovery timing sequence to the serial transceiver when the optical path is in a failure state, and performing an autonomous failure recovery operation of the fiber-optic communication system in response to the autonomous recovery timing sequence.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 18, 2021
    Assignee: COMBA TELECOM SYSTEMS (CHINA) LIMITED
    Inventors: Wen Zhang, Hui Lv
  • Publication number: 20190366490
    Abstract: The disclosure relates to the field of welding technology. A welding base includes a welding groove defined therein. A limiting member is arranged inside the welding groove for preventing solder and to-be-welded member from loosening from the welding groove after the to-be-welded member is welded to the welding joint. Based on the prior art welding base, the inside of the welding groove of the present disclosure is provided with a limiting member, which can prevent the solder from a longitudinal movement, thus preventing the solder from falling off the welding groove.
    Type: Application
    Filed: May 23, 2017
    Publication date: December 5, 2019
    Applicants: COMBA TELECOM TECHNOLOGY (GUANGZHOU) LTD., COMBA TELECOM SYSTEMS (CHINA) LTD., TIANJIN COMBA TELECOM SYSTEMS LTD.
    Inventors: Binlong Bu, Peitao Liu, Jianjun You, Hongbin Duan, Lijing Peng
  • Patent number: 10313856
    Abstract: The present invention disclosed a unified communication system based on micro base station. The system includes: a micro base station subsystem, a landline telephone network subsystem, an office network subsystem and a communication switching subsystem. The communication switching subsystem receives a voice service request from the micro base station subsystem and the landline telephone network subsystem, sends the voice service request to the micro base station subsystem when a called user in the voice service request is a mobile communication intranet user, sends the voice service request to the landline telephone network subsystem when the called user in the voice service request is a landline telephone network user, receives a service request from the micro base station subsystem, and sends the service request to the office network subsystem.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: June 4, 2019
    Assignee: COMBA TELECOM SYSTEMS (CHINA) LTD.
    Inventors: Yingtian Hu, Kai Li
  • Patent number: 9961563
    Abstract: The invention discloses a small cell base station system, and related devices and data processing methods, and the small cell base station system includes an extended small cell base station and at least one distributed component, where the extended small cell base station includes a network protocol processing module, an upper layer protocol processing module, a physical layer protocol processing module, a first baseband data processing module, and a first transceiver module; and the distributed component includes a second baseband data processing module and a second transceiver module, where in the downlink, the first baseband data processing module separates downlink baseband data into at least two branches, performs a data alignment operation on the at least two branches of downlink baseband data, sends one of the branches to the first transceiver module, and Ethernet encapsulates and then sends the remaining branches to the second transceiver module through the second baseband data processing module of t
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 1, 2018
    Assignee: COMBA TELECOM SYSTEMS (CHINA) LTD.
    Inventors: Shaohu Fang, Bo Yang, Wei Xiang
  • Patent number: 9838885
    Abstract: Disclosed are a wireless communication system and method and an expansion unit of a flat network architecture. The wireless communication system comprises at least one baseband signal source, an expansion unit (EU) and at least one remote radio unit (RU) connected to the EU. By overlapping the baseband signals output by each baseband signal source, remote transmission and wireless coverage of multimode digital signals are achieved, thereby solving the problem of system performance degradation caused by the interaction of radio-frequency analog signal transmission and optical transmission in the prior art.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: December 5, 2017
    Assignee: COMBA TELECOM SYSTEMS (CHINA) LTD.
    Inventors: Yingtian Hu, Jinqing Zhou, Yuanjian Zhang, Shiqun Deng, Yuejun Zhang
  • Patent number: 9780425
    Abstract: A microwave component of cavity type includes an integral cavity and a microwave network circuit disposed in the cavity. The cavity has multiple enclosing walls and a chamber defined by said multiple enclosing walls. The chamber is intended for accommodating the microwave network circuit therein. A wiring slot is defined in at least one of the enclosing walls, and at least one first through hole extended through the chamber is provided on each wiring slot. The microwave component of cavity type features small size, simple structure, and wide application. Furthermore, cost may be reduced, batch production may be achieved, use of fasteners such as screws is avoided, and the passive inter-modulation products caused by fasteners are eliminated, as the microwave component is secured without any screws.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: October 3, 2017
    Assignees: COMBA TELECOM SYSTEMS (CHINA) LTD., COMBA TELECOM TECHNOLOGY (GUANGZHOU) LTD., COMBA TELECOM SYSTEMS (GUANGZHOU) LTD., TIANJIN COMBA TELECOM SYSTEMS LTD.
    Inventors: Peitao Liu, Guosheng Su, Fengzhang Xue, Litao Chen, Binlong Bu
  • Publication number: 20150288065
    Abstract: A multi-frequency array antenna, includes a reflective metal plate, a low-frequency radiation column element which is arranged on the reflective metal plate and operating in a first frequency band range, and a high-frequency radiation column element operating in a second frequency band range. The low-frequency radiation column element comprises several low-frequency radiation units arranged at an equal first distance in the axial direction of a first reference axis. The high-frequency radiation column element comprises several high-frequency radiation units arranged at an equal second distance in the axial direction of the first reference axis. The first distance is 2.5 times the second distance. At least one of the low-frequency radiation units is nested with one high-frequency radiation unit locationally corresponding thereto, and at least one of the low-frequency radiation units is axially located between two adjacent high-frequency radiation units close to the low-frequency radiation unit.
    Type: Application
    Filed: October 24, 2013
    Publication date: October 8, 2015
    Applicant: COMBA TELECOM SYSTEMS (CHINA) LTD.
    Inventors: Peitao Liu, Feifei Jia, Shanqiu Sun
  • Publication number: 20150264698
    Abstract: A resource allocation method and base station. The resource allocation method comprises: within a current scheduling period, determining priorities of users in a cell for sub-carriers in available frequency resources, and among the available frequency resources of the cell, allocating a corresponding available frequency resource for each user in the cell according to the priorities of all users for the sub-carriers, so that the frequency resources that can be used by the edge users cover all available frequency ranges of the cell. Therefore, when frequency selectivity fading occurs in the channel, a decline in communication quality caused by allocating carrier resources for the edge users in the limited frequency resources is avoided, the probability that the edge users use deeply fading frequency resources is reduced, and interruption in the communication process is decreased, thereby improving system throughput.
    Type: Application
    Filed: August 8, 2013
    Publication date: September 17, 2015
    Applicant: COMBA TELECOM SYSTEMS (CHINA) LTD.
    Inventor: Hanguang Wu
  • Publication number: 20140233677
    Abstract: The present invention describes a RF signal control method and device that adjusts the first down-converter gain attenuation and uses the adjusted first down-converter gain attenuation to change the RF signal. The RF signal control method and device also uses a determined linear filter parameter to perform linearity improvement on the digital signal after the RF signal goes through a down-converter and analog-to-digital converter. The RF signal control method and device use an increased up-converter gain attenuation value to correct the RF input signal after digital pre-distortion operation, so that the adjusted and/or improved signals after power amplification have better quality than the RF signal with just a simple analog-to-digital converter and clipping equipment. Thus, the current application improves the linearity effect of digital pre-distortion operation and the dynamic effect of the power amplifier operation, thereby promoting the coverage effect of the RF output signal.
    Type: Application
    Filed: April 12, 2013
    Publication date: August 21, 2014
    Applicant: COMBA TELECOM SYSTEMS (CHINA) LTD
    Inventors: Zhansheng Zhang, Shuanlong Pan