A communications method, apparatus, and system are disclosed. The method includes: generating, by an access device, a temporary identity sequence for a terminal, and sending a first message carrying the temporary identity sequence to the terminal; receiving, by the terminal, the first message sent by the access device, selecting one temporary identity from the temporary identity sequence, and generating, based on an area key of the terminal, the selected temporary identity, and a PDCP data SDU of the terminal, a PDCP data PDU of the terminal, which is used when a V2X message of the terminal is sent, where the area key is an area key of an area corresponding to location information of the terminal. This can implement security requirements of anonymity, non-traceability, and non-repudiation of V2X communication, and reduce security overheads and a processing delay of the V2X communication.

Provided is an update method based on an FUMO protocol. The method includes: a server extending a standard FUMO node, and generating a plurality of FUMO extension nodes in one-to-one correspondence to a plurality of pieces of update package information; the server delivering via the extended standard FUMO node and the FUMO extension nodes the pieces of the update package information to a terminal according to a request message from the terminal,; and the terminal downloading an update package selected by a user according to the pieces of the received update package information and updating using the downloaded update package. The solution solves the problem in the related art that only one update package is found in one session in a process of updating based on the FUMO protocol.

The present invention discloses a state transition method, user equipment, and a radio network controller. The user equipment includes: a receiving unit, configured to receive state transition indication information and information about a target RRC state that are sent by a radio network controller (RNC), where the state transition indication information is used for instructing the user equipment to perform enhanced state transition; and a transition unit, configured to enable the user equipment to transit from a current RRC state to the target RRC state according to the state transition indication information. In embodiments of the present invention, state transition indication information and a target RRC state are used to instruct user equipment to directly transit from a current RRC state to the target RRC state in an enhancement mode. In the embodiments of the present invention, when the user equipment performs enhanced state transition, no reconfiguration process or reconfiguration process optimization is required, avoiding relatively high signaling consumption caused by multiple reconfiguration processes. Therefore, signaling overheads required during state transition can be reduced.

Methods and apparatuses are provided for mitigating interference among access points, and/or devices communicating therewith, in unplanned network deployments. Based on determining that one or more served devices potentially interfere with one or more access points, a pathloss edge target can be adjusted.

The present invention relates to a data transmission method and apparatus. The data transmission method includes: acquiring associated count values of received protocol data units PDUs, where the received PDUs are PDUs that a first data link layer receives from N data streams at a second data link layer, and N ≥ 2; determining N candidate count values, where the N candidate count values are in a one-to-one correspondence with the N data streams, and the candidate count value is a maximum value of associated count values of PDUs from each data stream and in the received PDUs; selecting a minimum value from the N candidate count values as a currently submissible count value; and when the associated count values of the received PDUs meet a submitting condition set according to the currently submissible count value, submitting PDUs of which associated count values meet the submitting condition to an upper-layer communication layer of the first data link layer.

Systems and methods for Secure User Plane (SUPL) Redirection and Mobile Location Protocol (MLP) Tunneling to a Discovered SUPL Location Platform (D-SLP) are disclosed. For example, a method for SUPL redirection by a SET, may include: receiving an initiation message at a SET from a Home SUPL Location Platform (H-SLP); establishing a secure connection with the H-SLP, and returning a response message; receiving a redirect message from the H-SLP; establishing a SET initiated SUPL session with a D-SLP; obtaining a location of the SET using the D-SLP; and returning the location to the H-SLP.

Methods and apparatuses are provided for mitigating interference among access points, and/or devices communicating therewith, in unplanned network deployments. Based on determining that one or more served devices potentially interfere with one or more access points, an inter-frequency handover (IFHO) threshold or data rate can be adjusted for the device to cause IFHO or reduce occurrence of interference, and/or a coverage area can be modified so the device can communicate with one or more other access points to mitigate potential interference. Based on determining interference from one or more devices served by other access points, an access point can switch operating modes to a hybrid or open access points to allow the one or more devices to handover to the access point, and/or can boost downlink transmit power to cause the one or more devices to perform IFHO from the other access points to mitigate potential interference.

A communication device (10) may establish at least one type of connection among a first type of connection and a second type of connection which are according to a particular protocol defined in an NFC standard based on a current state of the communication device (10) and a current state of an external device (50, 52). The first type of connection may be a connection in which the communication device (10) operates as a server and the external device (50, 52) operates as a client. The second type of connection may be a connection in which the communication device (10) operates as a client and the external device (50, 52) operates as a server. The communication device (10) may communicate the target data with the external device (50, 52) by using the established connection. The contents of the communication may be different in response to which type of connection is established.