Described herein is a system and method in a user equipment (UE) supporting registration using third generation partnership project (3GPP) access and using non-3GPP access, the method comprising storing, in a memory of the UE, first emergency information received using first registration procedures; receiving, by the UE, a REGISTRATION ACCEPT message using second registration procedures via non-3GPP access; and keeping, in the memory, the first emergency information after receiving the REGISTRATION ACCEPT message.

Described herein is a system and method in a user equipment (UE) supporting registration using third generation partnership project (3GPP) access and using non-3GPP access, the method comprising storing, in a memory of the UE, first emergency information received using first registration procedures; receiving, by the UE, a REGISTRATION ACCEPT message using second registration procedures via non-3GPP access; and keeping, in the memory, the first emergency information after receiving the REGISTRATION ACCEPT message.

A user equipment is configured to receive an extensible authentication protocol (EAP) request from a session management function (SMF) that serves as an EAP authenticator for secondary authentication of the user equipment. The secondary authentication is authentication of the user equipment in addition to primary authentication of the user equipment. The user equipment is also configured to, responsive to the EAP request, transmit an EAP response to the SMF.

Methods and apparatuses are provided for transmitting information. The method includes: determining whether the UE supports a preset adjustment function, where the preset adjustment function instructs a base station to dynamically adjust resource configuration information for the HPUE based on SAR capability information of the UE; if the UE supports the preset adjustment function, determining target resource configuration information corresponding to a preset high power mode; and transmitting information according to the target resource configuration information in the preset high power mode.

The present invention provides a method of determining a transmission power for device to device, D2D, transmissions between a first user equipment device and a second user equipment device using transmission resources being used for transmissions to a cellular network entity by a third user equipment device, the method comprising determining a measure of a path loss between the cellular network entity and the first user equipment device, and using the measure of the path loss to determine a maximum transmission power such that the D2D transmissions are received at the cellular network entity with a signal level around or below a noise level.

Disclosed are techniques for determining round-trip time (RTT) of a user equipment (UE). In an aspect, each gNodeB in a plurality of gNodeBs measure signaling data related to an uplink RTT reference signal received from the UE and the downlink RTT reference signal transmitted by each gNodeB. The signaling data comprises one of a processing delay between a time of arrival (TOA) of the uplink RTT reference signal and a time of transmission (TOT) of the downlink RTT reference signal or a total RTT between the TOT of the downlink RTT reference signal and the TOA of the uplink RTT reference signal. The signaling data is sent to a single entity, other than the UE, e.g., another gNodeB or a location server, where signaling data relevant to the UE is aggregated. The aggregated signaling data may be sent to the UE to determine the RTT for the UE or used by the location server to determine the RTT for the UE.

Provided is a base station, comprising: a configuration unit, configured to configure a transmission waveform of a User Equipment (UE) for uplink transmission; and a transmission unit, configured to transmit information related to the configuration to the UE. The configuration unit is configured by using any of the following modes: physical layer signaling, a Random Access Response (RAR) message of Media Access Control (MAC), and Radio Resource Control (RRC) signaling. The present application also provides a user equipment (UE) and a corresponding method.

The disclosure provides a method and a device in a User Equipment (UE) and a base station for wireless communication. The UE first transmits a first radio signal, and then transmits a second radio signal; wherein the first radio signal includes M1 first radio sub-signal(s), and a first sequence is used for generating the first radio sub-signal; the second radio signal includes M2 second radio sub-signal(s), and a first bit block is used for generating the second radio sub-signal; the M1 is a positive integer, the M2 is a positive integer in a target set, and each element in the target set is a positive integer; and the target set is correlated with at least one of the M1 or the first sequence. The disclosure can save overheads caused by control information and improve spectrum efficiency of uplink transmission.

A method and a device for two-step contention based random access are provided. The method includes: sending, by a user equipment (UE), an Msg1 message; and determining that two-step random access of the user equipment is successful, in a case that a UE identifier carried in the Msg1 message is a cell radio network temporary identifier (C-RNTI) and physical layer scheduling signaling addressed based on the C-RNTI is received by the user equipment. For two-step contention based random access, if the UE identifier carried in the Msg1 message is a C-RNTI, the user equipment determines that the two-step random access is successful in a case that the physical layer scheduling signaling addressed based on the C-RNTI is received by the user equipment. In this way, the two-step contention based random access can be achieved.

Various arrangements for managing network channels are presented. A backend system may receive data from one or more data sources. The backend system may determine, based at least in part on the data received from the one or more data sources, a triggering event and a location related to the triggering event. The backend system may transmit, to an unmanned aerial vehicle (UAV), first location data associated with the location related to the triggering event. The backend system can receive, from the UAV, network congestion information associated with a connection between one or more devices and the UAV. Based at least in part on the network congestion information, the backend system may send second location data to the UAV.