A carrier selection method, a terminal device and a computer storage medium are disclosed. The method includes: running at least one process on at least one carrier, wherein different processes are run on a same carrier or different carriers; and performing carrier re-selection for at least part of the at least one process when a carrier re-selection timer expires is detected.

A system that determines a cell density and cell type in an area corresponding to a location of a user equipment; determines a mobility state of the user equipment based on the determined cell density and the determined cell type; and controls cell reselection for the user equipment based on the determined mobility state of the user equipment.

In an example embodiment, a method receives a first request of a first vehicle for a content item; receives travel data of the first vehicle including a first vehicle route of the first vehicle; determines first edge server(s) located on the first vehicle route of the first vehicle; segments the content item into content segment(s) based on the travel data of the first vehicle and edge information of each first edge server; and dispatches each content segment to the corresponding first edge server for transmission to the first vehicle.

In order to prevent degradation in communication quality at the time of handover, this base station apparatus is provided with: an antenna; and a cell forming unit that receives, from another base station apparatus, information indicating the movement state of a mobile station apparatus accommodated in the other base station apparatus and forms a cell on the basis of the information by using the antenna.

A method for a terminal to perform a cell re-selection procedure and a device supporting the method are disclosed. The method comprises: a step of receiving mobility state information indicating a mobility state of a terminal most suitable for each frequency; a step of measuring the mobility state of the terminal; a step of adjusting priorities by assuming, based on the mobility state information, that the frequency most suitable for the measured mobility state has highest priority; and a step of performing a cell re-selection procedure on the basis of the adjusted priorities.

Various aspects described herein relate to techniques for mobility mode selection in uplink-based and downlink-based mobility in wireless communications systems. In an aspect, a method for wireless communications may include determining that a user equipment (UE) is operating in a first mobility mode, determining whether the UE satisfies at least one condition associated with mobility of the UE for mobility mode selection, and selecting a second mobility mode based on a determination that the UE satisfies the at least one condition, wherein each of the first mobility mode and the second mobility mode is an uplink mobility mode or a downlink mobility mode. The techniques described herein may apply to different communications technologies, including the 5th Generation (5G) New Radio (NR) communications technology.

A vehicle communication system includes an in-vehicle router. The in-vehicle router includes a Wi-Fi module, a GPS, a vehicle speed acquirer, and an in-vehicle CPU. The Wi-Fi module is a module mounted on a vehicle and provided connectable to an access point of a wireless LAN. The GPS acquires vehicle position information indicating the position of the vehicle. The vehicle speed acquirer acquires vehicle speed information indicating the speed of the vehicle. The in-vehicle CPU determines the access point to be connected to the Wi-Fi module based on the vehicle position information and the vehicle speed information.

A method and an apparatus for initiating user plane path re-establishment and a communications system are disclosed. The method includes: determining, by a session management function entity based on first location information of a terminal device, a session service area to which a current session of the terminal device belongs; and after receiving second location information of the terminal device sent by a mobility management function entity, if determining that the second location information is not within the session service area, instructing the terminal device to initiate a re-establishment procedure for the current session or initiate a handover procedure. Due to introduction of the session service area, when the terminal device moves back and forth at edges of service areas of two adjacent user plane function entities, a ping-pong effect caused by frequent handover between the two user plane function entities is avoided, and user experience is improved.

According to an embodiment there is provided a first network node (122) for use in a wireless network (100), the first network node (122) being adapted to forward information on movements of a wireless device to a second network node (124) over an interface (106; 108); wherein the information on movements is represented by a cause value in a first field that uses an interface-dependent encoding and a cause value in a second field that uses an interface-independent encoding. A corresponding second network node and methods of operating the network nodes are also provided.

A system and method in various embodiments implements a virtual spectrum band stacking technique facilitating spectrum sharing by converting and combining spectrum bands consisting of several different RF channels, common air interfaces, and radio channel protocols in the radio frequency channel domain to form IP Virtual Radio Channels (IP-VRCs) in the packet data domain. This virtual spectrum stacking technique combines the transmissions of contiguous and non-contiguous RF channels with differing physical layers into IP-VRCs. This technique enables simultaneous parallel high-speed wireless transmission; virtual radio channel hopping for enhanced security; and customized security schemes for different IP-VRC Groups. The deployment of the combination of IP-VRC Groups; Universal Small Cell Base Stations; and Universal Wireless End-Point Devices allows the aggregation of all available spectrum bands for use within a building environment. Some benefits of this deployment include expansion of spectrum utilization, service quality, security, applications and transmission throughput for wireless end-point devices.