Flexible resource configuration for NR V2X unicast

    公开(公告)号:US11445477B2

    公开(公告)日:2022-09-13

    申请号:US16742400

    申请日:2020-01-14

    Abstract: A method and apparatus for flexible resource configuration for unicast vehicle-to-everything (V2X) communication in new radio access technology (NR) is provided. The wireless is configured with a monitoring channel busy ratio (CBR) threshold and an entering CBR threshold. While performing sidelink transmission in a first transmission mode by using a third resource pool among at least one first resource pool for the first transmission mode, the wireless device measures a CBR of the third resource pool, and monitors at least one second resource pool for a second transmission mode based on that the CBR of the third resource pool is higher than the monitoring CBR threshold. Upon satisfying a condition related to the entering CBR threshold, the wireless device can perform sidelink transmission in the first transmission mode by using both the third resource pool and a fourth resource pool among the at least second resource pool.

    Method for performing V2X communication in wireless communication system and apparatus therefor

    公开(公告)号:US11115790B2

    公开(公告)日:2021-09-07

    申请号:US16611408

    申请日:2018-05-08

    Abstract: A method for performing a V2X communication in a wireless communication system and a device therefor are disclosed. A method for performing, by a user equipment (UE), a vehicle-to-everything (V2X) communication in a wireless communication system includes receiving a transmission request of a V2X message from an upper layer, when receiving the transmission request of the V2X message, selecting a resource for the V2X communication over a PC5 interface if the UE is ‘Not served by evolved universal terrestrial radio access network (E-UTRAN) for V2X communication’, and performing a transmission for the V2X communication over the PC5 interface. If the UE is camped on a cell supporting the V2X communication, and a carrier frequency provided by the cell on which the UE is camped does not belong to a pre-configured carrier frequency the UE intends to use, the UE is considered as ‘Not served by E-UTRAN for V2X communication’.

    Method for attempting network access from NB-IoT RAT

    公开(公告)号:US11044776B2

    公开(公告)日:2021-06-22

    申请号:US16088798

    申请日:2016-11-09

    Abstract: Provided in one disclosure of the present specification is a method for a wireless device attempting network access. The method may comprise the steps of: an RRC layer of the wireless device receiving, from a cell, a first piece of information relating to an NB-IoT RAT; the RRC layer receiving, from the cell, a second piece of information indicating whether to block access to exception data; the RRC layer obtaining, from an upper layer, an RRC establishment cause set as outgoing exception data, when an NAS signaling process is initiated to transmit the exception data; and performing an access block inspection.

    Method for performing V2X communication in wireless communication system and apparatus for same

    公开(公告)号:US10993094B2

    公开(公告)日:2021-04-27

    申请号:US16736697

    申请日:2020-01-07

    Abstract: Disclosed are a method for performing V2X communication in a wireless communication system and an apparatus for the same. Specifically, a method for performing vehicle-to-everything (V2X) communication by a user equipment (UE) in a wireless communication system includes: receiving a transmission request of a V2X message of a V2X service identified by a V2X service identifier from an upper layer by using V2X communication through a PC5 interface, the transmission request including the V2X message and the V2X service identifier; requesting or selecting a resource for the V2X communication through the PC5 interface to a base station based on whether the UE is serviced by an evolved universal terrestrial radio access network (E-UTRAN) for the V2X communication; and transmitting the V2X message through the PC5 interface by transferring the V2X message to a lower layer, and when mapping between the V2X service identifier and a transmission parameter is configured, the transmission parameter associated with the V2X service identifier may be transferred to the lower layer together with the V2X message.

    Method for selecting PLMN of terminal in wireless communication system and apparatus for same

    公开(公告)号:US10945201B2

    公开(公告)日:2021-03-09

    申请号:US16816580

    申请日:2020-03-12

    Abstract: A method for a user equipment (UE) to perform public land mobile network (PLMN) selection in a wireless communication system, and which includes selecting, by the UE, a first PLMN; in response to the first PLMN not providing direct communication resources, selecting, by the UE, a second PLMN providing direct communication resources; performing, by the UE, a registration on the second PLMN; receiving, by the UE, a failed registration code of “PLMN not allowed” due to a failing of the registration on the second PLMN; and performing, by the UE, the direct communication on the second PLMN in a limited service state. Further, the UE remains on the first PLMN based on a normal service state and the UE does not perform an additional PLMN selection during a duration of the direct communication in the second PLMN based on the limited service state.

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