Method for transmitting uplink channel and demodulation reference signal by MTC device

    公开(公告)号:US10348477B2

    公开(公告)日:2019-07-09

    申请号:US15520410

    申请日:2015-10-22

    Abstract: A disclosure of the present specification provides a method for transmitting an uplink channel and a demodulation reference signal (DMRS) by a machine type communication (MTC) device. The method may comprise the steps of: determining a frequency resource area for transmitting an uplink channel so as to have a size equal to or smaller than the size of a physical resource block (PRB) including 12 subcarriers; generating a DMRS sequence for some sub-carriers among the 12 subcarriers when the frequency resource area for transmitting the uplink channel is determined to have a size smaller than the size of the PRB including the 12 subcarriers; and transmitting the uplink channel and the DMRS on the some subcarriers in the PRB.

    Method for obtaining downlink synchronization, and MTC apparatus

    公开(公告)号:US10341977B2

    公开(公告)日:2019-07-02

    申请号:US15508469

    申请日:2015-09-21

    Abstract: The present specification provides a method for obtaining downlink synchronization in a machine type communication (MTC) apparatus. The MTC apparatus may comprise the steps of: receiving an MTC-dedicated synchronization signal from a base station on the subframe before a subframe which attempts to receive a paging message; obtaining a downlink synchronization of the base station through the synchronization signal; and after obtaining the downlink synchronization, attempting to receive the paging message. Here, the MTC-dedicated synchronization signal may be received on the same sub-band as a sub-band on which the paging message is received, from among the entire system band of the base station.

Patent Agency Ranking