A method for steering traffic performed by a terminal in a wireless communication system and a terminal using the method are provided. The method is characterized by: receiving first system information including a PLMN-ID list on which identities (ID) of a public land mobile network (PLMN) are listed according to a specific order; receiving second system information including RAN auxiliary information related to steering traffic between a first network and a second network; and steering traffic between the first and the second networks based on the first and second system information, wherein the second system information provides RAN auxiliary information for each PLMN, includes the same number of pieces of RAN auxiliary information as the number of PLMNs on the PLMN-ID list, and includes the RAN auxiliary information in the same order as the specific order of the PLMNs on the PLMN-ID list.

The present invention relates to a method for offloading traffic by means of wireless LAN in a mobile communications system and apparatus therefor, and more particularly to a method for a terminal to offload traffic at a bearer level, and to a base station communicating with the terminal. The method for a terminal to offload traffic according to the present invention includes the steps of: while performing a data communication with a base station through a bearer of a first communications network, receiving from the base station an offloading command for offloading a part of traffic to a second communications network; transmitting a report of the offloading to the base station in response to the offloading command; and performing a data communication of the partial traffic with an accessible AP through a bearer of the second communications network without releasing the bearer of the first communications network.

One disclosure of the present specification provides a method by which a network entity, which controls a control plane, determines whether to offload traffic of a user equipment (UE) to a wireless local area network (WLAN). The method can comprise a step of acquiring subscriber information on the UE from a subscriber information server, wherein the subscriber information can include a WLAN offloadability indication for a specific packet data network (PDN) connection. The method can comprise the steps of: determining WLAN offloadability for the specific PDN connection on the basis of the WLAN offloadability indication and configuration information; transmitting the WLAN offloadability indication to network nodes according to the determination; and transmitting the WLAN offloadability indication to the UE according to the determination.

A system, method, and computer-readable medium are disclosed for performing a connectivity handover operation. The connectivity handover operation includes: identifying a Wireless Wide Area Network (WWAN) link, the WWAN link having an associated WWAN location quality identifier; identifying a Wireless Local Area Network (WLAN) link, the WLAN link having an associated WLAN location quality identifier; monitoring the associated WWAN location quality identifier and the associated WLAN location quality indicator; determining whether the WWAN link should be activated based upon the associated WLAN location quality identifier; and, performing the connectivity handover operation based upon the determining.

A core network node of a first public land mobile network (PLMN) receives, from a wireless device, a requested international mobile subscriber identity (IMSI) offset value for offsetting an IMSI of the wireless device. The core network node transmits, to the wireless device, an accepted IMSI offset value for offsetting the IMSI of the wireless device. First paging occasions of the first PLMN are derived using an alternative IMSI. The alternative IMSI is determined based on a sum of the IMSI of the wireless device and the accepted IMSI offset value.

When a user equipment device (UE) has dual connectivity including a first air-interface connection extending from a first access node to the UE and a second air-interface connection extending from a second access node to the UE, and where an inter-access-node interface extends between the first access node and the second access node, a method includes (i) detecting that a flow of downlink data over the inter-access-node interface from the first access node to the second access node, for transmission of the downlink data over the second air-interface connection to the UE, is threshold high and (ii) based at least on the detecting, increasing downlink bandwidth of the second air-interface connection. Increasing the downlink bandwidth of the second air-interface connection could involve, for instance, replacing a carrier of the connection with another carrier that has a wider downlink frequency bandwidth, among other possibilities.

A wireless communication network to serve a wireless User Equipment (UE) with a wireless communication service over multiple wireless communication links. The wireless communication network comprises a primary access node, a first support access node, and a second support access node. The primary access node receives signal metrics for the support access nodes from the wireless UE, determines add thresholds for the support access nodes based on the amount of active UEs served by the primary access node, and converts the signal metrics for the support access nodes into add values for the support access nodes. When the add values are greater than the add thresholds, the primary access node signals the corresponding ones of the support access nodes to serve the wireless UE. The corresponding ones of the support access nodes exchange user data with the wireless UE.

A method executed by a mobile communication device is provided. The method includes at least the following steps: connecting to a non-cellular network for communicating data traffic in a first channel; determining an idle timeslot ratio of the first channel used by the non-cellular network in a first period of time; and in response to the idle timeslot ratio in the first period of time being lower than a first threshold, switching the data traffic communication from the non-cellular network to a cellular network or another non-cellular network, or switching the data traffic communication from the first channel to a second channel used by the non-cellular network, or providing a notification to a user of the mobile communication device.

Techniques described herein improve direct communication channel reliability in a vehicle-to-everything (V2X) communication. The techniques include a (wireless communication) device that uses a first licensed band to perform a cellular network communication through a first interface (e.g., Uu), and further uses a shared spectrum to perform a V2X communication through a direct communication channel interface. The device then monitors and compares a bandwidth requirement of the V2X communication with a bandwidth of the shared spectrum. In response to the bandwidth that is less than the bandwidth requirement, the device selects a second licensed band that includes a bandwidth that is at least equal to the bandwidth requirement. Further, the selected second licensed band is different from the first licensed band to avoid channel interference. In other embodiments, the device uses the licensed band to directly establish the V2X communication.

Methods, systems, and devices for wireless communications are described. A user equipment may determine parameters for congestion metrics based on a type for a channel access procedure associated with a sidelink transmission. The user equipment may determine a channel access procedure type for a sidelink channel transmission, and determine a limit for a channel occupancy (e.g., a channel occupancy ratio) based on the type. The user equipment may compare the channel occupancy with the limit to determine whether to transmit the sidelink channel transmission, based on whether the channel is available. In some aspects, the user equipment may additionally perform the channel access procedure (e.g., a listen before talk procedure) to determine whether to transmit the sidelink channel transmission. The user equipment may also perform channel measurements to obtain a congestion metric (e.g., a channel busy ratio) based on a threshold before transmitting the sidelink channel transmission.