METHOD AND APPARATUS TO ALLOCATE HARQ PROCESS DYNAMICALLY FOR UPLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220286239A1

    公开(公告)日:2022-09-08

    申请号:US17636016

    申请日:2020-05-26

    Abstract: The present disclosure relates to a method for performing an uplink (UL) transmission by user equipment in a wireless communication system. In particular, the method includes the steps of: receiving an UL grant associated with a first Hybrid Automatic Repeat Request (HARQ) process from a gNB; selecting a second HARQ process among the first HARQ process and the second HARQ process, when there is a first medium access control (MAC) protocol data unit (PDU) which is associated with the first HARQ process and is a pending MAC PDU; generating a second MAC PDU associated with the second HARQ process; and performing the uplink transmission of the second MAC PDU with an identifier (ID) of the second HARQ process.

    METHOD FOR TRIGGERING POWER HEADROOM REPORTING IN A DUAL CONNECTIVITY SYSTEM AND A DEVICE THEREFOR

    公开(公告)号:US20220167284A1

    公开(公告)日:2022-05-26

    申请号:US17670140

    申请日:2022-02-11

    Abstract: A method for a User Equipment, UE, operating in a wireless communication system, includes triggering power headroom reports (PHRs), in a first Medium Access Control (MAC), entity and a second MAC entity when a first type event occurs in the second MAC entity, wherein the UE is configured with the first MAC entity corresponding to a first base station and the second MAC entity corresponding to a second base station for a radio bearer; triggering a PHR in the second MAC entity only, when a second type event occurs in the second MAC entity, wherein the first type event includes: there are uplink resources allocated for transmission on any cell of the second MAC entity and a required power backoff for the any cell of the second MAC entity has changed more than a threshold, or wherein the first type event includes: there is uplink transmission on any cell of the second MAC entity and a required power backoff for the any cell of the second MAC entity has changed more than a threshold.

    METHOD AND APPARATUS FOR PROCESSING DATA UNIT BASED ON RLC GROUP IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220166548A1

    公开(公告)日:2022-05-26

    申请号:US17310492

    申请日:2020-03-11

    Abstract: The present invention relates to a method of processing a data unit by a User Equipment (UE) in a wireless communication system. In particular, the method includes the steps of: configuring, by the UE, a radio bearer comprising a Packet Data Convergence Protocol (PDCP) entity, wherein the PDCP entity is related to two or more Radio Link Control (RLC) groups and at least one of the two or more RLC groups comprises two or more RLC entities; selecting, by the PDCP entity of the UE, one of the two or more RLC groups; and based on a RLC group comprising two or more RLC entities being selected from the two or more RLC groups, duplicating, by the PDCP entity of the UE, a PDCP Protocol Data Unit (PDU); and submitting, by the PDCP entity of the UE, the PDCP PDU to the two or more RLC entities belonging to the selected RLC group.

    METHOD OF TRANSMITTING/RECEIVING DATA UNITS, AND DEVICE THEREFOR

    公开(公告)号:US20220006736A1

    公开(公告)日:2022-01-06

    申请号:US17297390

    申请日:2019-12-10

    Abstract: In the present disclosure, a transmitting device receives zero header information from a receiving device, generates a MAC PDU based on the zero header information, and transmits the MAC PDU. The zero header information may include information regarding a logical channel or MAC control element (CE). The MAC PDU may include a MAC subPDU which includes data of the logical channel or the MAC CE, and include no MAC subheader for the logical channel or the MAC CE.

    MULTIPLE RANDOM ACCESS PREAMBLE TRANSMISSION FOR A SINGLE RANDOM ACCESS PROCEDURE

    公开(公告)号:US20210289556A1

    公开(公告)日:2021-09-16

    申请号:US16332458

    申请日:2017-09-06

    Abstract: Method and apparatus for a user equipment (UE) performing random access are disclosed. For this end, the UE transmits first multiple random access preambles for a random access procedure to the network, and monitors random access responses respectively corresponding to each of the first multiple random access preambles during each of multiple random access response reception windows. The UE transmits second multiple random access preambles for the random access procedure to the network, if a random access response reception of the first multiple random access preambles is determined as not successful. Here, the random access response reception is determined as not successful, when none of the random access responses is successfully received until a last random access response reception window among the multiple random access response reception windows ends.

    METHOD FOR TRANSMITTING A POWER HEADROOM REPORTING IN WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR

    公开(公告)号:US20210227477A1

    公开(公告)日:2021-07-22

    申请号:US16629852

    申请日:2018-07-13

    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for transmitting a power headroom reporting in wireless communication system, the method comprising: generating a PHR MAC CE including PH information per BWP within a serving cell, in a state that the UE is configured with one or more BWPs per serving cell; and transmitting the PHR MAC CE, wherein the PHR MAC CE includes a BWP bitmap indicating presence of the PH information per BWP within the serving cell, wherein the BWP bitmap is present when the serving cell is activated.

    METHOD FOR TRANSMITTING A POWER HEADROOM REPORTING IN WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR

    公开(公告)号:US20210153142A1

    公开(公告)日:2021-05-20

    申请号:US16628130

    申请日:2018-07-04

    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for transmitting a power headroom reporting in wireless communication system, the method comprising: calculating multiple Power Headroom (PH) values per an active cell; selecting one PH value among the multiple PH values for setting a value of a PH field of a corresponding cell to the selected PH value; generating a Power Headroom Reporting (PHR) Medium Access Control (MAC) Control Element (CE) including the PH field set to the selected PH value; and transmitting a MAC Protocol Data Unit (PDU) including the generated PHR MAC CE to a network.

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