42results about "Broadcast service distribution" patented technology

The invention discloses a machine type communication common message transmission method, which is used for saving network resources and improving system capacity and efficiency. The method comprises that: a network side determines a radio access network (RAN) group corresponding to a machine type communication (MTC) group required to receive a paging message, and acquires a radio network temporary identifier (RNTI) of the RAN group; the network side generates the paging message; and the network side transmits the RNTI and the paging message to MTC terminals in the determined MTC group in a multicast way. The invention also discloses a device for implementing the method.

The invention discloses a PTT (Push-To-Talk) collision avoidance method for a center-free commanding and dispatching communication system based on the IP (Internet Protocol). The PTT collision avoidance method comprises the following steps: a user A presses a PTT key and requires a PTT talk; a timer Tr is started and the system broadcasts or multicasts a PTT request to a whole network; the system can delay to wait for a certain waiting interval Tw to monitor whether PTT requests of other users reach or not during the time period; and if no any request of the other users reaches in the waiting interval Tw, the A is accessed to a service channel to indicate that the user can speak. The invention provides a PTT arbitration method applied to the center-free commanding and dispatching communication system; with the adoption of the method, a PTT arbitration central node does not need to exist in the network and the PTT request can be sent by all terminal users in the system; and the whole network avoids PTT collision based on a certain rule and authorizes the certain user to carry out PTT talk. Meanwhile, a multi-priority service is realized.

In broadband wireless access system, base station with router and multiple user stations being connected to includes following parts: listening module in use for listening message between user station and router, or module of message proxy in use for intercepting message between user station and router; module for maintaining forwarding table of multicast address, module for executing multicast forwarding are in use for allotting an identical connection id for all user station in multicast group in order to manage adding or removed group of user station, or maintaining user data, and sending multicast data to user station. The invention also discloses relevant method. User stations in multicast group are not possible to receive multicast message by using the invention so as to reduce power consumption of user station, and raise safety. Moreover, equipment in base station does not need to carry out replication of multicast packet so as to save bandwidth resource of aerial port.

A method and system for informing a subscriber unit in a trunked communication system of whether a talkgroup is occupied. The method and apparatus receive a request to communicate with the trunked communication system and select a talkgroup of the trunked communication system. The method and system also communicate with a system controller to transmit information about the subscriber unit comprising at least the selected talkgroup. Further, the method and system determine whether the selected talkgroup is occupied by one or more subscriber units in the trunked communication system and indicate the determination of whether the selected talkgroup is occupied to the subscriber unit.

A method for communicating over a mesh network established between a plurality of devices is disclosed. Each device has a wireless radio and the method involves launching a mesh service on each device, the mesh service being operable to cause a processor circuit of the device to provide functionality for controlling the wireless radio for communication between devices over the mesh network. Each device has at least one application running on the device, the at least one application being associated with a mesh port, the mesh port being used to designate data transmissions as being associated with instances of a specific application running on at least some of the devices in the plurality of devices, the at least one application and the mesh service on each device being in data communication. The method also involves, in response to a specific application running on a device requesting the mesh service to provide access to the mesh network for communication via a specific mesh port, causing the mesh service to determine whether the specific application is authorized for communications on the specific mesh port, and if the specific application is authorized, processing requests from the application to communicate on the specific mesh port over the mesh network and forwarding data transmissions associated with the specific mesh port to the specific application, and if the specific application is not authorized, declining requests from the application to communicate on the specific mesh port over the mesh network and preventing access by the specific application to data transmissions associated with the specific mesh port.

The invention discloses a marriage seeking method based on mobile equipment. The method includes: the mobile terminal searches for the low-power-consumption Bluetooth Beacon broadcasting information broadcasted by a Beacons in a preset range; the mobile terminal judges whether the low-power-consumption Bluetooth Beacon broadcasting information is of marriage seeking and friend making types or not; if so, the mobile terminal acquires a UUID from the low-power-consumption Bluetooth Beacon broadcasting information; the mobile terminal builds a network connection with a marriage seeking server, and searches for the information of the marriage seeker corresponding to the UUID; the mobile terminal judges whether the information of the marriage seeker is matched with the marriage seeking requirements corresponding to the mobile terminal or not; if so, the mobile terminal downloads the information of the marriage seeker from the marriage seeking server and reminds a user to search for the marriage seeker. The invention further discloses the mobile terminal. By the marriage seeking method, the user can fast and conveniently find the marriage seeker conforming to the marriage seeking requirements, and the user can complete one easy and informal marriage seeking activity in a short time.

The invention discloses a packet reissuing method and system for group communication, and the method comprises the steps: sending a message which is used for suggesting the establishment of a unicastbearer to a server when user equipment detects the loss of a data packet of the group communication, the unicast bearer being used for reissuing the lost data packet, and the message carrying corresponding data packet loss information; enabling the server to establish a unicast bearer for the user equipment according to the message; and enbaling the server to utilize the unicast bearer to retransmit a lost data packet indicated by the data packet loss information to the user equipment. By adopting the method and the device, the packet loss problem of group communication can be effectively solved, and the data integrity of the group communication is ensured.

To send a message to a communication device (17) associated with a moving object (16) a method comprising several steps is proposed. In a first step, a first location trajectory (3) of this object (16) is obtained by a first party (1). In a second step, this trajectory (3) is sent (9) from this first party (1) to a second party (2). Then, the second party (2) obtains (8) a set of second location trajectories (6) of tracked communication devices (19) and compares the first location trajectory (3) with this set. Next, the second party (2) selects a selected location trajectory (5) of a selected communication device (17) from the set if this selected location trajectory (5) is substantially the same as the first location trajectory (3). This selected communication device (5) corresponds to the communication device (5). At the end, the message is sent to the selected communication device (5) by the second party (2).

The invention discloses a dispatching station, which comprises a wireless network card and a wireless access module, wherein the wireless network card is used for providing sending and reception of a wireless signal for the wireless access module; the wireless access module is used for access and management of wireless users and wireless dispatching and comprises an access control child process unit and a wireless dispatching child process unit; the wireless dispatching child process unit is used for completing dispatching business request identification and mutual conversion processing between wireless and an SIP and between the wireless and a circuit and completing mutual recognition and distribution sharing of dispatching information; the access control child process unit is used for access and management of the wireless users; when the interaction between a wireless WIFI mode and the other mode is processed, the access control child process unit and the wireless dispatching child process unit need to complete interaction of control messages and mutual conversion of user media stream formats.

A method of controlling the cell re-selection of a mobile station (4) between cells (1) of a cellular-based radio access network (6). The method comprises the steps of determining when a cell re-selection for the mobile station (4) is appropriate, determining whether or not the mobile station (4) is involved in a push to talk service comprising a series of talk bursts, and if the mobile station is involved in a push to talk service, delaying the cell re-selection until such time as a period of silence between talk bursts occurs.