A radio station (2) transmits or receives, to or from a radio terminal (1) in a second cell (23, 24), a CP message containing a NAS message or an RRC message or both, when a predetermined condition is satisfied. The second cell (23, 24) uses a RAT different from that of the first cell, and is used in addition and subordinate to the first cell. The predetermined condition relates to at least one of: (a) a content or type of the CP message; (b) a type of a signalling radio bearer used to transmit the CP message; (c) a transmission cause of the CP message; and (d) a type of a core network associated with the NAS message. It is thus, for example, possible to contributing to efficient transmission of control plane (CP) messages in a radio architecture that provides interworking of two different Radio Access Technologies (RATs).

A mechanism for distributing traffic between a macro access node and a micro access node in a heterogeneous network is described. The method, performed by a network node controller, comprises obtaining information of current traffic load in the heterogeneous network. The method further comprises distributing the traffic between the macro access node and the micro access node by adjusting cell shaping beams of the macro access node as a function of the current traffic load.

Disclosed herein is an architecture for an edge computing platform based on an underlying wireless mesh network. The architecture includes nodes installed with equipment for operating as part of a wireless mesh network, including (1) a first tier of one or more Point of Presence (PoP) node, (2) a second tier of one or more seed nodes that are each directly connected to at least one PoP node via a PoP-to-seed wireless link, and (3) a third tier of one or more anchor nodes that are each connected to at least one seed node either (i) directly via a seed-to-anchor wireless link or (ii) indirectly via one or more intermediate anchor nodes, one or more anchor-to-anchor wireless links, and one seed-to-anchor wireless link, where at least one node in each of these tiers is further installed with equipment for operating as part of an edge computing platform.

In a data packet transmission method disclosed herein, a capability information value indicating an amount of data that can be supported by a data transmission end is determined. In response to determining that a data packet is not received correctly, a data packet to be retransmitted is determined and is retransmitted according to the capability information value.

Provided are an information transmission method and device. The method comprises: an IAB node sends an F1 message to a base station, and forwards the F1 message to an IAB donor via the base station. In the present disclosure, the problem of lacking an IAB control plane information transmission scheme applicable to the NR is solved, and the forwarding of control plane information between an IAB node and an IAB donor is realized timely and accurately.

A method and an apparatus are provided for wireless backhaul connection. When receiving, from the wireless backhaul base station, connection requirement information for donor base stations, the LTE base station determines a first number of donor base stations required by the wireless backhaul base station for wireless backhaul connection according to the connection requirement information. The LTE base station determines a second number of donor base stations that are capable of providing wireless backhaul service to the wireless backhaul base station. The LTE base station determines, for the wireless backhaul base station, donor base stations for wireless backhaul connection according to the first number and the second number. The wireless backhaul base station and the first number of donor base stations and the second number of base stations are located in a coverage area of the LTE base station.

Disclosed herein is an architecture for an edge computing platform based on an underlying wireless mesh network. The architecture includes nodes installed with equipment for operating as part of a wireless mesh network, including (1) a first tier of one or more Point of Presence (PoP) node, (2) a second tier of one or more seed nodes that are each directly connected to at least one PoP node via a PoP-to-seed wireless link, and (3) a third tier of one or more anchor nodes that are each connected to at least one seed node either (i) directly via a seed-to-anchor wireless link or (ii) indirectly via one or more intermediate anchor nodes, one or more anchor-to-anchor wireless links, and one seed-to-anchor wireless link, where at least one node in each of these tiers is further installed with equipment for operating as part of an edge computing platform.

A master RAN node (1) sends, to a control plane function (5) in a core network (4), a modification request for modification of a first PDU session already established between a radio terminal (3) and a user plane function (6) in the core network (4). The modification request implicitly or explicitly indicates that PDU session split is needed for the first PDU session. The modification request causes the control plane function (5) to control the user plane function (6) to move a specific one or more QoS flows of a plurality of QoS flows associated with the first PDU session from a first tunnel between the user plane function (6) and the master RAN node (1) to a second tunnel between the user plane function (6) and a secondary RAN node (2). This contributes, for example, to implementing PDU session split in a radio communication network.

Methods, systems, and devices for wireless communications are described. In a wireless communications system, a user equipment (UE) may determine a preference of the UE for a termination point between a core network and a radio access network (RAN), the core network and the RAN supporting communications for the UE via at least one or a first cell and a second cell each associated with a multi-connectivity mode of the UE. The UE may transmit, to a base station, an indication of the preference of the UE for the termination point. In some cases, the base station may determine the termination point based on receiving the indication of the preference of the UE, and the base station may transmit a message indicating a configuration for the multi-connectivity mode to the UE, the configuration indicating the determined termination point.

Provided is a control apparatus that controls any one or all of a plurality of slave station apparatuses communicating with a terminal apparatus, a plurality of master station apparatuses that control the slave station apparatuses, and a transfer apparatus that transfers data transmitted and received between the master station apparatuses and the slave station apparatuses, the control apparatus including an information acquisition unit that acquires information regarding traffic of the data transmitted and received between the master station apparatuses and the slave station apparatuses, and a switching control unit that performs, on the basis of the information regarding the traffic acquired by the information acquisition unit, switching-control of an assignment relationship between the master station apparatus and the slave station apparatus and switching-control of a transfer path of data between the master station apparatus and the slave station apparatus.