Method and user equipment for performing random access procedure

    公开(公告)号:US10349449B2

    公开(公告)日:2019-07-09

    申请号:US15794523

    申请日:2017-10-26

    Abstract: In the present invention, a user equipment (UE) receives physical random access channel (PRACH) configuration information. The UE determines a part of PRACH resources among PRACH resources configured based on the PRACH configuration information, if a random access (RA) procedure is triggered. The UE performs the RA procedure using only the determined part of the PRACH resources. The PRACH configuration information includes a periodicity value N, expressed in number of configured PRACH resources. The determined part of PRACH resources are every N-th configured PRACH resource, starting from a specific PRACH resource for the RA procedure, among the PRACH resources configured based on the PRACH configuration information.

    Method for reporting a buffer status and device therefor

    公开(公告)号:US10342035B2

    公开(公告)日:2019-07-02

    申请号:US15038912

    申请日:2014-12-09

    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting a buffer status in the wireless communication system, the method comprising: generating a MAC PDU (Protocol Data Unit) including first BSR MAC CE (Buffer Status Reporting MAC Control Element) for an amount of data to be transmitted via the first MAC entity; and transmitting the MAC PDU via the second MAC entity to a base station.

    UPLINK SIGNAL TRANSMISSION BASED ON TIMING ADVANCE VALUE

    公开(公告)号:US20190182862A1

    公开(公告)日:2019-06-13

    申请号:US16321897

    申请日:2017-08-08

    Abstract: The present invention relates to uplink signal transmission by a user equipment (UE) in terms of timing advance value in a wireless communication system. According to an embodiment of the invention, the UE applies a predetermined timing advance value for a TAG (Timing Advance Group) if the TAG includes only one or more first type cells. Here, a random access procedure is not supported on the first type cells. Based on it, the UE transmits the uplink signals to the network on one of the first type cells based on the timing advance value applied for the TAG.

    Method for processing received RLC PDUs for D2D communication system and device therefor

    公开(公告)号:US10292192B2

    公开(公告)日:2019-05-14

    申请号:US15300725

    申请日:2015-04-08

    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for processing received RLC PDUs for D2D communication system, the method comprising: receiving a first RLC (Radio Link Control) PDU (Protocol Data Unit) for a RLC entity from a peer UE; setting a plurality of state variables for the RLC entity to initial values, respectively, wherein the plurality of state variables for the RLC entity comprises VR(UH) and VR(UR), and the an initial value of VR(UH) is a RLC sequence number (SN) of the first RLC PDU, and an initial value of VR(UR) is ‘the RLC SN of the first RLC PDU-offset’; and processing the first RLC PDU using the initial values.

Patent Agency Ranking