利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

699 条记录 (耗时 0.029 秒)

    AIRBORNE SUPPLEMENTAL COMMUNICATION DEVICE
    19.
    发明公开
    AIRBORNE SUPPLEMENTAL COMMUNICATION DEVICE 审中-公开

    公开(公告)号：EP3737002A1

    公开(公告)日：2020-11-11

    申请号：EP20173338.3

    申请日：2020-05-06

    申请人： T-Mobile USA, Inc.

    发明人： Lan, Wei-Ming

    IPC分类号： H04B7/185

    摘要： Techniques for improving signal quality of communication between a user equipment (UE) and a base station by launching a supplemental communication device as the UE experiences a degradation of the signal quality are discussed herein. In some cases, the techniques can be used to improve signal quality of a Fifth Generation (5G) millimeter wave band communication. Upon detecting that the signal quality has fallen below a preselected threshold, the supplemental communication device may be launched from a platform associated with the UE to establish an improved communication with the base station that is closer to a point-to-point communication while maintaining a communication with the UE. The supplemental communication device may track the movement of the UE and maintain the point-to-point communication with base station by directionally orienting its antenna(s) towards the base station and monitor and/or detect its surroundings to avoid physical obstructions.

    RF FRONT END REDUCTION OF RECEIVER DE-SENSITIVITY
    20.
    发明公开
    RF FRONT END REDUCTION OF RECEIVER DE-SENSITIVITY 审中-公开

    公开(公告)号：EP3734846A1

    公开(公告)日：2020-11-04

    申请号：EP20172200.6

    申请日：2020-04-29

    申请人： T-Mobile USA, Inc.

    发明人： WILLIAMS, Carl

    IPC分类号： H04B1/525

    摘要： Systems and methods for reducing receiver de-sensitivity caused by coupling between a primary antenna and a diversity antenna. More particularly, the systems and methods reduce receiver de-sensitivity due to harmonic components associated with the signal transmitted by the primary antenna falling within a frequency band at which the diversity antenna is configured to sense signals. The systems and methods include amplifying a first signal to produce a transmission signal for transmission via the primary antenna; receiving, at the diversity antenna, a receive signal; amplifying, via a low noise amplifier, the receive signal to apply a gain to the receive signal; inverting the transmission signal; and adding the inverted transmission signal to the amplified receive signal to produce a corrected receive signal. Accordingly, the harmonic components introduced into the receive signal are canceled out via negative feedback at the radio frequency (RF) front end.