A method for synchronizing evolved packet system (EPS) bearer context status between a user equipment (UE) and a network can include locally deactivating an EPS bearer context of a packet data network (PDN) connection at the UE while the UE operates in S1 mode without notifying the network serving the UE, wherein interworking to a fifth generation system (5GS) is supported for the deactivated EPS bearer context, and upon inter-system change from S1 mode to N1 mode, including an EPS bearer context status information element (IE) in a registration request message indicating which EPS bearer contexts are active in the UE before the inter-system change.

A method and system to control selection of a serving cell for a UE. An example method includes determining respectively for each candidate cell of multiple candidate cells a maximum backhaul bit rate of the candidate cell, determining that a given one of the candidate cells has a highest determined maximum backhaul bit rate among the candidate cells, and based at least on the determining that the given candidate cell has the highest determined maximum backhaul bit rate among the candidate cells, selecting the given candidate cell to be the serving cell for the UE. Further, the method could also include basing the selection on consideration of a backhaul packet-drop rate of the given cell. In example implementations, the selection of a serving cell could be a selection of a PCell for carrier-aggregation service, an anchor cell for dual-connectivity service, or a secondary cell for dual-connectivity service, among other possibilities.

A method and system for controlling uplink communication from a user equipment device (UE) that has at least two co-existing air-interface connections including a first air-interface connection with a first access node and a second air-interface connection with a second access node. An example method includes comparing a level of uplink backhaul congestion of the first access node with a level of uplink backhaul congestion of the second access node and, based at least on the comparing, configuring an uplink split ratio defining a distribution of uplink user-plane data flow of the UE between at least the first air-interface connection and the second air-interface connection. In an example implementation, this could involve configuring one of the air-interface connections as a primary uplink path to which the UE restricts its uplink communication unless and until a trigger occurs for transitioning the UE to operate in an split-uplink mode.

It is possible to facilitate setting of a request condition in a wireless communication system.

A capacity calculating unit calculates a wireless communication capacity in a wireless network including a plurality of wireless communication devices on the basis of information regarding a frequency bandwidth used in the wireless network. A wireless communication request condition acquiring unit acquires a request condition of a service provided in wireless communication between predetermined wireless communication devices among the plurality of wireless communication devices. A determination unit determines whether all wireless communication bearers established between the predetermined wireless communication devices satisfy the request condition of the service on the basis of the wireless communication capacity.

Methods, systems, and devices for wireless communications are described. In some systems, a modem of a user equipment (UE) and a data source, such as an application processor or a tethered client, may support for flow control enforcement per service flow. For example, the modem may transmit, to the application processor, a first flow control command for a first data traffic including non-prioritized data. The application processor, based on the first flow control command, may transmit, to the modem, the first data traffic including the non-prioritized data according to the first flow control command while also transmitting a second data traffic including prioritized data without flow control. The modem and the application processor may support such selective flow control enforcement based on a priority of a service flow based on maintaining multiple buffers at the modem or based on defining multiple thresholds of one buffer associated with triggering flow control.

The present disclosure relates to a communication technique for fusing, with an IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, and security and safety related services, on the basis of 5G communication technologies and IoT-related technologies. Disclosure is a method for efficiently controlling a terminal for a cellular IoT service in a 5G mobile communication system.

A service device (e.g., a user equipment (UE), or other network component) can operate to generate sidelink communications with peer UE vehicle-to-vehicle devices based on PC5 channel to enable a peer-to-peer communication as part of PC5 vehicle-to-everything (V2X) communications. An admission control scheme or a congestion control scheme can be enabled by determining a configured mapping based on various criteria, including a priority of V2X services, V2X packet Quality of Service (QoS) indications per packet, or other criteria. A UE can determine whether a packet is authorized via the sidelink channel based on the configured mapping.

In some implementations, a network device may monitor a communication session associated with a user equipment and a network. The network device may determine a service-level identifier associated with a subscription of the user equipment, wherein the subscription is for a particular level of service that is to be provided by the network to the user equipment. The network device may determine that a performance metric associated with the communication session satisfies a performance threshold associated with the particular level of service. The network device may provide the service-level identifier to the user equipment based on the performance metric satisfying the performance threshold, wherein the service-level identifier enables an indication that the user equipment is receiving the particular level of service to be displayed by the user equipment.

Aspects relate to a peak data rate for an uplink transmission. A user equipment may be scheduled for an uplink transmission on at least one radio frequency carrier of a plurality of radio frequency carriers. The user equipment may transmit the uplink transmission on the at least one radio frequency carrier according to a peak uplink data rate for a time slot. In some aspects, the user equipment may calculate the peak uplink data rate based on whether the user equipment supports uplink switching between the plurality of radio frequency carriers.

A method for using Multimedia Broadcast Multicast Services (“MBMS”) bearers in a network is provided, comprising: receiving properties and a sharing policy for an MBMS bearer and an instruction on which servers are authorized to share the MBMS bearer from a master server; and associating a session from an authorized server to the shared MBMS bearer according to the sharing policy when requested by the authorized server.