30 results about "Voice group call service" patented technology

The present invention provides a method for establishing and updating dynamic voice group calling area. The invention is suitable for global system for mobile communications for railway (GSM-R). The dynamic condition of group calling member and the dynamic condition of group calling area are two basic ideas which penetrate the whole dynamic voice group calling service. The invention is based on the basic idea of system of dynamic voice group calling, and provides a system flow which comprises establishing and real-time updating the dynamic group calling area. A novel settling method is provided for network development and optimization of dynamic voice group calling of railway mobile communication system.

The present invention discloses a method for realizing speaker priority of sound group calling in the technical field of mobile communication. The technical scheme of the invention is that the method comprises the following steps: installing a high priority on the user terminal for seizing the triggering point of uplink channel; writing the priority information of user into HLR and SIM cards; when the uplink channel is idle, accessing the network by the user according to a priority mode that the uplink channel is idle or a common mode; when the uplink channel is busy, determining to apply the network accessing of user or refuse the network accessing of user according to the priority state supported by network as well as the priorities of application user and present speaker; when the application user has the right for accessing the network, executing the uplink channel distribution and seizing of application user. The invention settles the problem that the MSC can not determine the distribution of channel when a plurality of users simultaneously apply group calling channel. Simultaneously, the group calling channel is preferably distributed for the user with high priority for using, and the in-time processing to emergency is guaranteed.

The invention provides an implementation method for providing short data service by using a cluster group call service channel through an intra-group user during performing voice group call service. The method comprises a short data transmitting stage and a short data receiving stage; when a receiving party is not a group call user, a network facility transmits short data to a receiving party user through a main control channel, and transmits short data receiving success message to a transmitting party user by using a group call downlink channel; and when the receiving party is the group call user, the network facility transmits the short data to the receiving party by using the group call downlink channel. Compared with the prior art, the method has the advantages of reducing resource waste of a reconstructed channel, along with easy implementation due to high sent short data rate. Because the time of occupying the channel during transmitting the short data is short, the group call service is affected little.

The present invention discloses phonetic group calling service message processing method, for saving A interface signaling resource between MSC and BSC. When need to make VGCS operation zone is plurality of cell or all cell in BSC, MSC carries identification indicating plurality of cell gather or all cell gather in message sent to BSC, BSC according to said identification indication executing VGCS operation in specified zone.

The invention discloses a call control method, a mobile switching centre and a communication system thereof through a plurality of implement methods. The call control method comprises that when receiving a call request message from the voice group call service initiated by the terminal, the mobile switching centre judges weather the terminal which sends the call request message has a calling authority of the voice group call service or not and builds a group call channel for the terminal with the calling authority in the group calling region including the voice group call service. Through controlling the initiating authority of the group call service by using all the implement methods of the invention, the controlling of the group call service is convenient, and the the application management of the actual service is convenient, the radio resource can be well controlled, the service quality of the service provider can be improved, in addition, the use of trunking service is promoted to be more normative, and the defaults that the radio resource is used randomly, the application management is inconvenient and the radio resource is wasted in prior art can be solved effectively.

The present invention provides a method and corresponding apparatus for multimedia group call service in mobile network. According to the present invention, voice group call is established by circuit switch while data group call is established by packet switch. Compared with the prior art, the solutions disclosed in the present invention can shorten the “Call Setup latency” and “Intra-call latency” when performing voice group call and can provide better link quality.

The trunking communication service comprises: voice group call service (VGCS), or voice broadcast service (VBS). The method thereof comprises: in the trunking communication service releasing notice sent from Relay MSC to Anchor MSC, a cell used for indicating the reason of releasing the trunking communication service is added in order to make the releasing notice carrying the release reason; according to said release notice, Anchor MSC can either complete the release of trunk communication server or get the release reason of trunking communication service according to the parameter in the cell newly-added with the release reason.

A service processing method and a mobile switching center are disclosed in the present invention. In the present invention, in a group call channel mode modifying flow, the mobile switching center MSC sends voice group call service/voice broadcast service assignment request (VGCS/VBS ASSIGNMENT REQUEST) message corresponding to the group call sponsor mobile platform locating cell to a base station subsystem after receiving the assignment complete (ASSIGNMENT COMPLETE) message special for connection corresponding to the sponsor mobile platform, implementing group call or signaling sequence initiated by the broadcast call through the channel mode modifying course is clarified, thereby it can implement through the channel mode modifying course to adding the sponsor mobile platform into the group channel to talk.

The invention is a method for optimizing voice group calling establishing process, suitable for GSM-R system. a group calling property request signaling and a group calling property result signaling between the mobile service switching center and the group calling register are related in a group calling establishing process. Aiming at the problem of interconnection and intercommunication because the 3GPP voice group calling establishing establish protocol prescription is not clear, the invention provides the complete interaction flow and content of the two signalings, realizes efficient information interaction, increases voice group establishing success probability, while has no change to the existing signaling quantity and signaling data structure; and enable the voice group calling service to be better applied in the railway which is a special environment.

The invention relates to a method for using ground circuit in honeycomb communication system. It solves the problem that the ground circuits are wasted if creating a ground circuit for each wireless service channel in order to provide service for group service. In voice group calling service and voice broadcasting service in honeycomb communication system, each group listen the same content; there only has one group member to speak in the same time, thus it can share the ground circuit. The method includes: creating a mobile exchange center of voice group calling service or voice broadcasting service, confirms the service range of the voice group calling service or voice broadcasting service; the mobile exchange center creates a shared ground circuit between the other mobile exchange center in the service range, each mobile exchange center in the service range shares the ground circuit with other base station controller. The invention reduces the cost.

The embodiment of the present invention provides a group call channel allocation method and device for voice group call service, by assigning a dedicated channel TCH to the group call originating terminal of this group; Allocate group call channel TCH: In the cell where the group call called terminal to be allocated channel resources is located, determine whether there is available channel resource; if there is, allocate group call channel TCH for the group call called terminal; if not, then In this cell, the target channel that can be preempted is determined according to the preset rules. The preset rules include: using the dedicated channel TCH as the target channel that cannot be preempted; resources, the target channel assigned to the group call terminal to be allocated channel resources in this group cannot be the dedicated channel TCH occupied by the group call originating terminal in this group, which ensures that the voice group call service in this group can be successfully established and ensures The service quality of voice group call service improves user experience.

The method includes steps: base station BTS records and stores notification list number (NLN) sent at latest one on notification channel NCH and page channel PCH; within one dispatching cycle of NCH/PCH channel, if receiving direction of new notification message of initiating new voice broadcast service (VBS) and/or voice group call service (VGCS) sent from base station controller (BSC), then BTS carries NLN different from the stored NLN when carrying out dispatch next time on NCH/PCH channel; after receiving NLN different from the previous NLN, mobile station monitors NCH channel. The invention also discloses equipment and system corresponding to the method. The effective simplified mechanism in the invention for monitoring NCH reduces load received by mobile station effectively, and ensures mobile station can obtains message in time when new VBS or VGCS is initiated at network side.

The invention discloses a method for prompting a usable channel for sending an uplink aceessing request, the method comprises that, a trunking communication network sends an usable channel busy message or a voice group-calling service additional information message with a prompting message in a trunking group cell, the prompting message carries a message for prompting whether an uplink group-calling channel of a trunking group is usable; a receiver in the cell of the trunking group determines whether the uplink group-calling channel is usable based on the received uplink busy message or the information carried in the prompting message of the voice group-calling service additional information message, if it is, the uplink accessing request is sent via the uplink group-calling channel; otherwise, the uplink accessing request is sent via a random accessing channel.

The invention discloses a method and a system for indicating an available channel for sending an uplink access request. The method comprises the following steps that: a cluster system network side sends an uplink busy message or a voice group call service (VGCS) additional information message in which an indication message is set in a cell of a cluster group, wherein the indication message carries information indicating a channel for sending the uplink access request; and an answering party in the cell of the cluster group sends an uplink access request on an uplink group call channel or a random access channel indicated by the information according to the information carried by the indication message set in the uplink busy message or the VGCS additional information message.

The invention relates to a method for allocating wireless reverse channel in group service in honeycomb communication system, it creates a wireless reverse channel and form complementary effect for each user, and provides service for group service user with shared wireless reverse channel, in order to save reverse channel resources. Several wireless terminals in the same group are allocated with a shared wireless reverse channel by the base station control center in the voice group call service, and at least allocates on forehead broadcasting channel. The shared reverse channel can be allocated to the fixed reverse channel, when user applies to speak, it uses the reverse channel, when speak is completed, the reverse channel can be used by other user.

The invention relates to a method for realizing voice multicast service and relative system, which comprises: A1, the terminal reports the multicast end request to the main control mobile exchange center; B, the main control mobile exchange center releases the base station controller relative to the multicast in its cover region and the communication connection of relative region; C1, the main control mobile exchange center informs the multicast register to set the multicast as idle condition, when the communication connection of relative region and base station controller are both released.

The invention provides a method and a system for a terminal to release different source group calls based on a broadband cluster system. The method comprises the steps that a core network side serverreceives a group call release request message sent by any terminal: when determining that the group call release type is different source group calls, determining whether the terminal has permission to release the different source group calls or not: if so, initiating a group call release process, or else refusing the group call release request of the terminal; when it is determined that the groupcall release type is voice group call, determining whether the terminal has permission to release a voice group call service or not: if yes, initiating a voice group call service release process, orelse refusing the group call release request of the terminal; when it is determined that the group call release type is a video service, determining whether the terminal has a permission to release the video service or not: if yes, initiating a video service release process, or else refusing the group call release request of the terminal. According to the method, the release of different source group calls actively initiated by the terminal can be flexibly realized.