Methods and devices for transmitting sounding reference signal in wireless access system

    公开(公告)号:US09935751B2

    公开(公告)日:2018-04-03

    申请号:US14782234

    申请日:2014-04-15

    CPC classification number: H04L5/0048 H04J11/0053 H04L5/001 H04L5/0053

    Abstract: The present invention provides methods for transmitting a sounding reference signal (SRS) in a wireless access system supporting a multiple connection mode, in which user equipment is connected to two or more small cells, and devices for supporting same. According to one embodiment of the present invention, the method for the user equipment transmitting the SRS in the wireless access system supporting the multiple connection mode, comprises the steps of: receiving, from a first small cell in the multiple connection mode, a control signal requesting an aperiodic SRS transmission; and confirming whether a first SRS resource region for the aperiodic SRS transmission to the first small cell and a second SRS resource region for a periodic SRS transmission to a second small cell in the multiple connection mode overlap, wherein the user equipment in the multiple connection mode maintains multiple connections with the two or more small cells, including the first small cell and the second small cell, and wherein the first small cell and the second small cell can be mutually connected through a non-ideal backhaul link.

    Method for transmitting signal for MTC and apparatus for same

    公开(公告)号:US09907055B2

    公开(公告)日:2018-02-27

    申请号:US14903018

    申请日:2014-07-28

    Abstract: The present invention relates to a method for performing a random access procedure in a wireless communication system supporting repeated transmission of a same signal, and an apparatus for same, and more specifically, to a method and an apparatus for same, the method comprising: detecting a physical downlink control channel (PDCCH) signal; and transmitting a physical uplink shared channel (PUSCH) signal using an uplink grant, when the PDCCH signal includes the uplink grant, wherein the PUSCH signal is transmitted from a subframe having a first offset from among subframes from which the PDCCH signal has been detected, when user equipment is a first type of user equipment, wherein the PDCCH signal is repeatedly transmitted from a first plurality of subframe sections, when the user equipment is a second type of user equipment, wherein the transmission of the PUSCH signal begins from a subframe capable of starting repeated PUSCH transmission and closest to the last subframe in the first plurality of subframe sections, and wherein the subframe capable of starting repeated PUSCH transmission is determined in advanced through upper layer signaling.

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