A method for transmitting data includes generating a plurality of first data frames based on the same type of data content, wherein the plurality of first data frames have the same traffic identifier (TID), and the plurality of first data frames having the same TID have the same access media priority in a plurality of transmission links; and transmitting the plurality of first data frames having the same TID using the plurality of transmission links. An apparatus for performing the method may include a terminal in a wireless communication network.

A user equipment (UE) configured for dual connectivity with a split bearer configuration may transmit uplink data packets to one or both a master cell group (MCG) and a secondary cell group (SCG). The UE may transmit an uplink transmission from a packet data convergence protocol (PDCP) entity over one or both of a first radio link control (RLC) entity associated with the MCG and a second RLC entity associated with the SCG. The configuration including a transmit buffer threshold. The UE may receive, at the PDCP entity, an uplink switch start indication. The UE may activate the second RLC entity in response to receiving the uplink switch start indication. The UE may transmit a buffer status report according to a current transmit buffer level plus the transmit buffer threshold. Accordingly, the UE may communicate with the SCG based on the uplink switch start indication.

An apparatus and method for configuring system variables related to load control in an electronic device is provided. The electronic device includes a communication circuit, and a processor configured to identify a traffic pattern for each cell based on at least one of the plural statistical indicators, in case of determining to update a system variable of cell based on the traffic pattern, configure at least one of the plural statistical indicators as a controlling indicator, and update at least one system variable for at least one cell based on the required change amount of the at least one controlling indicator.

Systems and methods of providing RAT co-existence and congestion control in V2V communications are generally described. A vUE detects specific non-LTE RAT transmissions in a listening period of a PSCCH or PSSCH, determines whether a metric has been met and reselects to a non-overloaded channel to communicate with other vUEs or the eNB. The manner of reselection is dependent on the RAT specific or V2X service priorities of the channels, as well as whether the channels are V2V service dependent.

A physical protocol data unit (PPDU) transmission method includes aligning parameters of a plurality of links for constraining the plurality of links to have same capacity for PPDU transmission, and transmitting PPDUs via the plurality of links. Highest capacity supported by one of the plurality of links is different from highest capacity supported by another of the plurality of links. Each of the PPDUs is generated and transmitted under the same parameters. Ending time instants of transmission of the PPDUs are aligned.

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.

Embodiments of the application provide a data transmission method and a device. A sending device periodically obtains a first packet sequence number and a second packet sequence number. The first packet sequence number is a maximum value in packet sequence numbers respectively corresponding to packets that belong to a first data flow and that are received by a receiving device through a first data channel in a statistics period. The second packet sequence number is a maximum value in packet sequence numbers respectively corresponding to packets that belong to the first data flow and that are received by the receiving device through a second data channel in the statistics period. The sending device updates a packet cache queue of: the first data channel, the second data channel, or both the first and the second data channels, based on the first packet sequence number and the second packet sequence number.

Embodiments of this disclosure provide an efficient mechanism for re-ordering media access control (MAC) service data units (MSDU) segments by including link-specific MAC addresses and link-independent sequence control fields in MAC headers appended to MAC protocol data unit (MPDU) payloads within which the MSDU segments are encapsulated prior to transmitting the MPDU payloads over multiple aggregated 802.11 links. Each sequence control field may include a link-independent sequence number that indicates a relative position of a corresponding MSDU within the sequence of MSDUs of the same traffic stream. Additionally, when the MSDU segment is an MSDU fragment, the sequence control field may further include a link-independent fragment number that indicates a relative position of the corresponding MSDU fragment within a sequence of MSDU fragments of the MSDU that was subject to fragmentation.

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.

The present disclosure relates to an electronic device, a wireless communication method, and a computer readable medium. According to an embodiment, an electronic device for user equipment side comprises a processing circuit. The processing circuit is configured to: for a first communication resource allocated by a base station to a cellular link and a second communication resource allocated to a pass-through link, allocate resources to the cellular link and the pass-through link in a manner of sharing the first communication resource and the second communication resource; and carry out control to communicate data on the basis of the resource allocation.