Methods for determining a tracking area is provided. One example method includes sending, by a terminal device, indication information to a core network device, where the indication information is used to indicate a position of the terminal device; and receiving, by the terminal device, first TA information from the core network device, where the first TA information includes a TA corresponding to the position of the terminal device, and the TA is determined based on the position of the terminal device. In the foregoing technical solution, the tracking area of the terminal device is managed based on the position of the terminal device, and the tracking area of the terminal device can be managed without depending on a cell ID change of the terminal device.

A method for reducing a likelihood of paging all base stations in the tracking area is disclosed, comprising: tracking a per-cell paging success rate for cells in the radio access network and a last known cell for mobile devices attached in the radio access network; performing, based on a paging request message, a paging sequence to identify a paging set of base stations to page the specific mobile device, the paging sequence further comprising: identifying a paging set that is a last known cell for the specific mobile device based on the tracked last known cell, sending paging messages to the radio access network to all cells in the paging set, identifying a next paging set based on the tracked per-cell paging success rate, and sending paging messages to the radio access network to all cells in the next paging set.

A method for reducing a likelihood of paging all base stations in the tracking area is disclosed, comprising: tracking a per-cell paging success rate for cells in the radio access network and a last known cell for mobile devices attached in the radio access network; performing, based on a paging request message, a paging sequence to identify a paging set of base stations to page the specific mobile device, the paging sequence further comprising: identifying a paging set that is a last known cell for the specific mobile device based on the tracked last known cell, sending paging messages to the radio access network to all cells in the paging set, identifying a next paging set based on the tracked per-cell paging success rate, and sending paging messages to the radio access network to all cells in the next paging set.

The present disclosure discloses a subject matter message notification method performed at a terminal and to be disseminated to one or more target users. The method includes: displaying a subject matter editing interface, the subject matter editing interface including an editing item used for editing subject matter content, an editing item used for adding a target user, and an editing item used for adding a file; generating a subject matter message in accordance with user-provided subject matter content through the editing item used for editing subject matter content, one or more user-selected target users through the editing item used for adding a target user, and one or more user-selected files through the editing item used for adding a file; and sending the subject matter message to a server, wherein the server is configured to send the subject matter message to the one or more user-selected target users.

The present disclosure discloses a subject matter message notification method performed at a terminal and to be disseminated to one or more target users. The method includes: displaying a subject matter editing interface, the subject matter editing interface including an editing item used for editing subject matter content, an editing item used for adding a target user, and an editing item used for adding a file; generating a subject matter message in accordance with user-provided subject matter content through the editing item used for editing subject matter content, one or more user-selected target users through the editing item used for adding a target user, and one or more user-selected files through the editing item used for adding a file; and sending the subject matter message to a server, wherein the server is configured to send the subject matter message to the one or more user-selected target users.

A communication method and system for controlling and paging a user equipment (UE) are provided. The method includes receiving mobility level information of a UE, and performing at least one of handover control, measurement control, or paging for the UE according to mobility level information of the UE.

A communication method and system for controlling and paging a user equipment (UE) are provided. The method includes receiving mobility level information of a UE, and performing at least one of handover control, measurement control, or paging for the UE according to mobility level information of the UE.

A concept for handovers in cellular networks, a concept for improved handling of tracking/paging areas for, for instance, user entities in inactive modes and a concept for enabling intelligent route selection in cellular networks are presented.

A concept for handovers in cellular networks, a concept for improved handling of tracking/paging areas for, for instance, user entities in inactive modes and a concept for enabling intelligent route selection in cellular networks are presented.

A method and system includes the ability for individuals to set up an ad hoc digital and voice network easily and rapidly to allow users to coordinate their activities by eliminating the need for pre-entry of data into a web or identifying others by name, phone numbers or email. This method is especially useful for police, fire fighters, military, first responders or other emergency situations for coordinating different organizations at the scene of a disaster to elevate conventional communication problems either up and down the chain of command or cross communication between different emergency units. The method and system provides that the users are only required to enter a specific Server IP address and an ad hoc event name, a password and perhaps the name of the particular unit.