This application provides a method for sending a data volume report. The method includes: transmitting, by a first device, a first data volume report to a first access device when a condition for reporting a data volume is satisfied, wherein the first data volume report indicates a first uplink data volume transmitted from the first device and a second uplink data volume transmitted from a second device and received by the first device, and the condition comprises one or more of: (1) a sub-condition that at least one of the first uplink data volume or the second is greater than or equal to a predetermined threshold; (2) a time period that the sub-condition is satisfied is greater than or equal to a predetermined time threshold; (3) an instruction instructing the first device to report at least one of the first uplink data volume or a data volume transmitted from the second device; (4) at least one of a plurality of connections between the first device and the first access device is disconnected; or (5) a connection between the first device and a second access device is disconnected.

Disclosed is a data transmission method of a V2X communication device. A data transmission method of a V2X communication device according to an embodiment of the present invention comprises the steps of: acquiring CBR values for a plurality of channels; configuring a CBR threshold value on the basis of the CBR values; assigning at least one channel candidate group to channels having CBR values that are equal to or smaller than the CBR threshold value; and selecting a transmission channel, through which service data is to be transmitted, from the at least one channel candidate group.

The disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). The disclosure provides a method and apparatus for configuring a relay node. A first node transmits to a second node a message that carries information on a radio bearer for a user accessing the second node. Configuration of the radio bearer for data transmission in a multi-hop network is realized through the above method and apparatus.

A method and apparatus for logical channel prioritization (LCP) based on hybrid automatic repeat request (HARQ) feedback in a wireless communication system is provided. A wireless device selects a first logical channel with a highest priority among multiple logical channels having data available for transmission. When the first logical channel is configured with a hybrid automatic repeat request (HARQ) feedback, the wireless device selects one or more second logical channels configured with the HARQ feedback among the multiple logical channels. When the first logical channel is not configured with HARQ feedback, the wireless device selects one or more second logical channels not configured with the HARQ feedback among the multiple logical channels. The wireless device creates a data unit based on the first logical channel and the one or more second logical channels.

The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with an IoT technology and a system thereof. The present disclosure may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. A communication method of a base station, the method comprising: establishing at least one bearer with a terminal; receiving a downlink packet being transmitted to the terminal; determining a bearer mapped to quality of service (QoS) information of the downlink packet; and transmitting, to the terminal, the downlink packet through the determined bearer.

A pre-5th-Generation (5G) or 5G communication system is provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as long term evolution (LTE). The method for operating a primary base station in a wireless communication system is provided. The method includes transmitting, to a secondary base station, an addition request message. The addition request message carries information of a secondary cell group (SCG) split bearer. The method further includes receiving, from the secondary base station, a response message of the addition request message.

Methods, apparatuses and systems for user-plane congestion management are provided. Among these method, apparatuses and systems is a method, implementable by a base station (and/or a serving gateway), for mitigating user plane congestion. The method may include sending a congestion indication to a core network; receiving a general packet radio system (GPRS) tunneling protocol (GTP) packet including an first internet protocol (IP) packet associated with a first flow within a bearer; obtaining, from a header of the GTP packet, an indicator indicative of a priority of the IP packet, wherein the indicator was inserted into the header of the GTP packet by the core network responsive to the congestion indication; and dropping any of the GTP packet and the first IP packet on condition that a priority of a second IP packet associated with second flow within the bearer takes precedence over the priority of the first IP packet.

An example system comprises a router configured to receive a bandwidth update associated with a change in bandwidth over a wireless channel, determine if the change in bandwidth identified in the bandwidth update results in bandwidth being over-reserved at at least one priority level, previously reserved bandwidth of the wireless channel being associated with a plurality of different priority levels, the previously reserved bandwidth being previously reserved based on a plurality of path requests from a head end router, each path request including at least one priority level and a bandwidth reservation request, if the change in bandwidth results in bandwidth being over-reserved, then preempt a lowest priority path request, based in the preemption of the lowest priority path request, update reserved bandwidth of the wireless channel of at least one priority level, and provide a message to the head end router regarding the change of bandwidth.

This disclosure provides a measurement method and an acquisition method for a packet loss rate, a terminal, and a network device. The measurement method for a packet loss rate is applicable to a terminal, and comprises: acquiring configuration information concerning an uplink packet loss rate measurement, the configuration information comprising: measurement time window information, measured service information and condition information for triggering uplink packet loss rate measurement reporting; measuring, according to the configuration information, an uplink packet loss rate; and sending report information to a network device according to the uplink packet loss rate.

A method for processing data includes: determining a second UE based on logical channel priorities of logical channels corresponding to SL-DRBs and/or SL-SRBs of data to be transmitted; and determining a medium-access-control protocol data unit (MAC PDU) for transmitting to the second UE, in which the MAC PDU includes data to be transmitted in one or more sidelink radio bearers (SL-RBs) determined based on logical channel priorities of logical channels corresponding to SL-RBs of the second UE, and the SL-RBs of the second UE include SL-DRB(s) of the second UE and/or SL-SRB(s) of the second UE.