CN103686643B - A kind of wideband multimedia cluster service control method, system and a kind of base station - Google Patents
A kind of wideband multimedia cluster service control method, system and a kind of base station Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of wideband multimedia cluster service control method, system and a kind of base station, its method includes：First, source base station receives the first short message that source device sends, send setup requests to switching control center, then, the equipment institute home base station participating in calling receives the call setup instruction that switching control center sends, send, to the equipment participating in calling belonging to this base station, the short message carrying resource allocation information, receive and belong to the second short message that the equipment participating in calling of this base station sends；The base station receiving described second short message sends control application request to switching control center；The described equipment institute home base station participating in calling receives the control notice instruction that described switching control center sends, and sends, to the equipment participating in calling belonging to this base station, the short message carrying control home state.It can be seen that, the present invention is capable of the control of wideband multimedia cluster service.
Description
Technical Field
The present invention relates to the field of mobile communication technologies, and in particular, to a method and a system for controlling a broadband multimedia trunking service, and a base station.
Background
With the rapid development of digital trunking communication systems towards data broadband, service diversification and terminal multi-modular directions, the demand of users on broadband multimedia trunking services is increasing, and the existing digital trunking communication systems are as follows: a Terrestrial Trunked Radio system (TERTA), an Integrated Digital Enhanced Network (IDEN), a Mobile Radio system (DMR), a Police Digital Trunking system (PDT), etc., all of which are narrowband Trunked communication systems,
at present, air interface call related signaling specified in the standard of the narrowband trunking communication system still cannot support various types of broadband services through expansion, and the bandwidth of the existing narrowband trunking communication system cannot meet the requirements of broadband multimedia trunking services.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a method, a system and a base station for controlling a broadband multimedia trunking service, which perform signaling interaction of the broadband multimedia trunking service in the form of short messages, and allocate resources for the broadband multimedia service through a broadband service unit added in the base station to realize control of the broadband multimedia service.
The invention discloses the following technical scheme:
in a first aspect, an embodiment of the present invention provides a method for controlling a broadband multimedia trunking service, where the method includes:
a source base station receives a first short message sent by source equipment, wherein an identifier carried by the first short message is a call application short message;
the source base station sends a call establishment request to a switching control center, wherein the call establishment request comprises: the type of call and the identity of the devices participating in the call;
the base station to which the equipment participating in the call belongs receives a call establishment instruction sent by the switching control center, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station according to the call establishment instruction;
the base station to which the equipment participating in the call belongs receives a second short message sent by the equipment participating in the call belonging to the base station, wherein the identifier carried by the second short message is a control right application short message;
the base station receiving the second short message sends a control right application request to the switching control center, wherein the control right application request comprises: the identification of the equipment sending the second short message;
and the base station to which the equipment participating in the call belongs receives the control right notification instruction sent by the switching control center, and sends a short message carrying the control right attribution state to the equipment participating in the call belonging to the base station according to the control right notification instruction.
Preferably, the sending a short message carrying resource allocation information to a device belonging to the base station and participating in the call according to the call establishment instruction includes:
when the call type is visual single call or visual group call, the base station to which the equipment participating in the call belongs allocates resources required by video for the equipment participating in the call belonging to the base station through the broadband channel module, allocates resources required by voice for the equipment participating in the call belonging to the base station through the narrowband channel module, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station.
Preferably, the sending a short message carrying resource allocation information to a device belonging to the base station and participating in the call according to the call establishment instruction includes:
when the call type is a cross-mode voice single call or a cross-mode voice group call or a video call, the base station to which the equipment participating in the call belongs allocates resources required by voice or resources required by video to the equipment participating in the call belonging to the base station through the broadband channel module, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station.
Preferably, the method further comprises:
the base station to which the equipment participating in the call belongs receives a third short message sent by the equipment participating in the call, wherein an identifier carried by the third short message is a call release short message;
and the base station receiving the third short message releases the resources allocated to the equipment sending the third short message.
Preferably, the method further comprises:
the base station to which the equipment participating in the call belongs receives a fourth short message sent by the control right belonging equipment belonging to the base station, wherein the identifier carried by the fourth short message is a control right release short message;
the base station receiving the fourth short message sends a control right release request to the switching control center, wherein the control right release request comprises: the identification of the equipment sending the fourth short message;
and the base station to which the equipment participating in the call belongs receives the control right notification instruction sent by the switching control center, and sends a short message carrying the control right attribution state to the equipment participating in the call belonging to the base station according to the control right notification instruction.
In a second aspect, an embodiment of the present invention provides a base station, where the base station includes:
a first receiving unit, configured to receive a first short message sent by a source device, where an identifier carried in the first short message is a call application short message;
a first sending unit, configured to send a call establishment request to a switching control center, where the call establishment request includes: the type of call and the identity of the devices participating in the call;
a second receiving unit, configured to receive a call establishment instruction sent by the switching control center;
a resource allocation unit, configured to send a short message carrying resource allocation information to a device belonging to the base station and participating in the call according to the call establishment instruction;
a third receiving unit, configured to receive a second short message sent by a device that participates in the call and belongs to the local base station, where an identifier carried in the second short message is a control right application short message;
a second sending unit, configured to send a control right application request to the switching control center, where the control right application request includes: the identification of the equipment sending the second short message;
a fourth receiving unit, configured to receive a control right notification instruction sent by the switching control center;
and a third sending unit, configured to send, according to the control right notification instruction, a short message carrying the control right attribution status to a device belonging to the local base station and participating in the call.
Preferably, the resource allocation unit includes:
the narrowband channel module is used for distributing resources occupied by voice for equipment which belongs to the base station and participates in the call and sending a short message carrying resource distribution information when the call type is visual single call or visual group call; and/or the presence of a gas in the gas,
the broadband channel module is used for distributing resources occupied by videos for equipment which belongs to the base station and participates in the call when the call type is visual single call or visual group call, and sending short messages carrying resource distribution information; or when the call type is a cross-mode voice single call or a cross-mode voice group call or a video call, allocating resources required by voice or resources required by video for the equipment belonging to the base station and participating in the call, and sending a short message carrying resource allocation information.
Preferably, the base station further includes:
a fifth receiving unit, configured to receive a third short message sent by the device participating in the call, where an identifier carried in the third short message is a call release short message;
and the resource releasing unit is used for releasing the resources allocated to the equipment for sending the third short message.
Preferably, the base station further includes:
a sixth receiving unit, configured to receive a fourth short message sent by the control right attribution device belonging to the local base station, where an identifier carried in the fourth short message is a control right release short message;
a fourth sending unit, configured to send a control right release request to the switching control center, where the control right release request includes: the identification of the equipment sending the fourth short message;
and the control right notification unit is used for sending the short message carrying the control right attribution state to the equipment which belongs to the base station and participates in the call according to the received control right notification instruction sent by the switching control center.
The embodiment of the invention provides a broadband multimedia trunking service control system, which comprises:
the base station and the switching control center; the base station communicates with the equipment through short messages; the base station distributes resources for the broadband service through the broadband channel unit of the base station.
The beneficial effects of the invention can be seen from the above description:
in order to realize broadband multimedia trunking service control, a method, a system and a base station of the embodiment of the invention firstly receive a first short message sent by source equipment through a source base station, wherein an identifier carried by the first short message is a call application short message; the source base station sends a call establishment request to a switching control center, wherein the call establishment request comprises: the type of call and the identity of the devices participating in the call; the processing enables the source equipment to send a call application to the source base station in a short message mode, and the call request of the broadband service can be realized without adding a new call request instruction; then, the base station to which the equipment participating in the call belongs receives the call establishment instruction sent by the switching control center, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station according to the call establishment instruction; the processing makes the call channel between the source device of the calling initiator and the target device of the called party successfully established, and then, in order to realize the normal operation of the call, the control right of the call needs to be controlled, so that the base station to which the device participating in the call belongs receives a second short message sent by the device participating in the call belonging to the base station, and the identifier carried by the second short message is a control right application short message; the base station receiving the second short message sends a control right application request to the switching control center, wherein the control right application request comprises: the identification of the equipment sending the second short message; and the base station to which the equipment participating in the call belongs receives the control right notification instruction sent by the switching control center, and sends a short message carrying the control right attribution state to the equipment participating in the call belonging to the base station according to the control right notification instruction. Therefore, the equipment participating in the call can obtain the control right of the call, and the normal broadband service processing can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of an embodiment 1 of a method for controlling a broadband multimedia trunking service according to an embodiment of the present invention;
fig. 2 is a flowchart of an embodiment 2 of a method for controlling a broadband multimedia cluster service according to an embodiment of the present invention;
fig. 3 is a flowchart of an embodiment 3 of a method for controlling a broadband multimedia cluster service according to an embodiment of the present invention;
fig. 4 is a structural diagram of embodiment 1 of a base station according to an embodiment of the present invention;
fig. 5 is a structural diagram of an embodiment 1 of a broadband multimedia trunking service control system according to an embodiment of the present invention.
Detailed Description
In order to make the technical field better understand the scheme of the embodiment of the invention, the following detailed description of the embodiment of the invention is provided in conjunction with the accompanying drawings and the implementation mode.
It should be noted that the broadband multimedia trunking service control method provided by the present invention can be used in the existing narrowband trunking communication system, such as: a Terrestrial Trunked Radio system (TERTA), an Integrated Digital Enhanced Network (IDEN), a Mobile Radio system (DMR), a Police Digital Trunked system (PDT), etc., as long as the existing narrowband Trunked communication system supports short message type interaction, the method provided by the present invention can be used to support broadband multimedia Trunked service.
The broadband multimedia trunking service in the present invention may be a visual call (a call with both video and voice), a video call (a call with only video), a cross-mode voice call (a call in which the caller and the callee are in different access subsystems), so-called calls may be single calls (one-to-one calls) or group calls (one-to-many calls).
Referring to fig. 1, a flowchart of an embodiment 1 of a broadband multimedia trunking service control method is shown, where the method includes:
step 101, a source base station receives a first short message sent by a source device, wherein an identifier carried by the first short message is a call application short message.
The source device is a device belonging to the source base station, when the source device wants to initiate a broadband multimedia trunking service (hereinafter referred to as a broadband service), a first short message needs to be sent to the source base station, an identifier carried by the first short message is a call application short message, that is, the first short message may include an identifier, the identifier is the call application short message, that is, the identifier indicates that the first short message is the call application short message, but not a control right application short message, nor an information short message (a common short message), and if the identifier is the common short message, the base station processes the short message according to a system transmission mode. In addition, the first short message may further include: identification of the source device (identity), identification of the target device (identity), call type; the call type is used to indicate which type the broadband service to be initiated by the source device is, and the call type may include: any one of a visual single call, a visual group call, a cross-mode voice single call, a cross-mode voice group call and a video call; the identifier of the target device is used to indicate to which target devices the source device needs to establish a call relationship, where the target device may be a device or a group of devices belonging to the source base station, a device or a group of devices belonging to one or more other base stations in the access subsystem, or a device or a group of devices belonging to one or more base stations in other access subsystems.
Step 102, the source base station sends a call establishment request to a switching control center, where the call establishment request includes: the type of call and the identity of the devices participating in the call.
After the source base station receives the first short message sent by the source device, the source base station sends a call establishment request to a Switching Control Center (SCC) according to a call type, an identifier of the source device, and an identifier of the target device included in the first short message, where the call establishment request includes: an identification of the type of call and the devices participating in the call; the call type included in the call setup request is the call type included in the first short message. The identification of the devices involved in the call contained in the call setup request includes: an identification of a source device originating the call and an identification of a target device receiving the call. After receiving the request, the SCC sends a call setup response (grant) to the source base station; of course, if the system is busy or other reasons cause that the call request service cannot be supported, the SCC sends a call setup response (rejection) to the source base station, after receiving the rejection response, the source base station sends a call rejection instruction to the source device in a short message manner, the call is ended, and if the source device still needs to apply for the call, the execution is started again according to step 201. After the SCC agrees to the call establishment request initiated by the source base station, the SCC needs to send a call establishment instruction to the base station to which the device participating in the call belongs.
Step 103, the base station to which the device participating in the call belongs receives the call establishment instruction sent by the switching control center, and sends a short message carrying resource allocation information to the device participating in the call belonging to the base station according to the call establishment instruction.
The base station to which the device participating in the call belongs is the source base station and the base station to which the target device belongs, the source base station allocates resources required for participating in the call to the source device according to the call establishment instruction sent by the SCC, and sends the allocated resource information to the source device in a short message manner, and meanwhile, the base station to which the target device belongs (the target device may also belong to the source base station) allocates resources required for participating in the call to the target device, and sends the allocated resource information to the target device in a short message manner. Preferably, the sending a short message carrying resource allocation information to a device belonging to the base station and participating in the call according to the call establishment instruction may include:
the base station to which the equipment participating in the call belongs allocates resources for the equipment participating in the call belonging to the base station through the broadband channel module and the narrowband channel module of the base station according to the call establishment indication, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station.
According to the different call types, the base station to which the equipment participating in the call belongs allocates resources in the following two ways:
first, when the call type is a visual single call or a visual group call, the base station to which the device participating in the call belongs allocates resources required by a video to the device participating in the call belonging to the base station through a broadband channel module, allocates resources required by a voice to the device participating in the call belonging to the base station through a narrowband channel module, and sends a short message carrying resource allocation information to the device participating in the call belonging to the base station.
Secondly, when the call type is a cross-mode voice single call, a cross-mode voice group call or a video call, the base station to which the device participating in the call belongs allocates resources required by voice or resources required by video to the device participating in the call belonging to the base station through the broadband channel module, and sends a short message carrying resource allocation information to the device participating in the call belonging to the base station.
And 104, the base station to which the equipment participating in the call belongs receives a second short message sent by the equipment participating in the call belonging to the base station, wherein the identifier carried by the second short message is a control right application short message.
When the base station to which the device participating in the call belongs sends a short message carrying resource allocation information to the device participating in the call belonging to the base station in step 103, indicating that the establishment of the call path is successful, after the call path is successfully established, in order to normally perform the call, the control right of the call needs to be controlled, specifically: all devices participating in the call can apply for control right, which can be determined according to the current call type, if the call type is cross-mode voice single call or cross-mode voice group call, the control right is voice control right, if the call type is visual single call or visual group call, the control right is visual right control right (video and voice control right), if the call type is video call, the control right is video control right (only video has no voice). Of course, in order to satisfy different requirements, when the call service type is visual single call or visual group call, the control right can be a separate voice control right or a separate video control right.
The device participating in the call wants to possess the control right, and must send a second short message to the affiliated base station, wherein the second short message comprises: identification, identification of the equipment and request type; the request types include: any one of three types of speaking right application, viewing right application and video right application; the identifier of the second short message is a control right application short message, so that the base station to which the device belongs can identify that the purpose of the current short message is to apply for the control right after receiving the second short message.
Step 105, the base station receiving the second short message sends a control right application request to the switching control center, where the control right application request includes: an identification of the device sending the second short message.
When the base station receiving the second short message knows that the device sending the second short message wants to possess the control right, the base station needs to send a control right application request to the SCC, and after receiving the request, the SCC sends a control right application response (which may be an agreement or a rejection, of course) to the base station, indicating that the control right is allocated to the device sending the second short message; in general, in order to ensure normal processing of a call service, when a control right is not occupied, the SCC sends an agreement response if a device applies for the agreement; if the rejection response is sent, it indicates that there is a device that has already occupied the control right, and the process of the device occupying the control right must be performed in the above manner. In addition, the SCC needs to notify other devices (except the device sending the second short message) participating in the call of the control right affiliation status of the call, so that the SCC sends a control right affiliation indication to the base station to which all the devices participating in the call belong, so as to indicate that the call control right belongs to the device sending the second short message.
Certainly, with the gradual development of broadband multimedia technology, broadband service types demanded by people are more and more abundant, in this embodiment, the present embodiment is explained only by taking the above several service types as examples, and the service types are not specifically limited, and in practical application, other service types may also be supported according to different application scenarios and different user demands, which are not listed here.
And 106, the base station to which the equipment participating in the call belongs receives the control right notification instruction sent by the switching control center, and sends a short message carrying the control right attribution state to the equipment participating in the call belonging to the base station according to the control right notification instruction.
After receiving the control right notification instruction sent by the SCC, the base station to which the device participating in the call belongs sends a short message carrying a control right belonging status (the control right of the call belongs to the device (the identifier of the device) sending the second short message) to the device participating in the call belonging to the base station.
The embodiment of the invention can be seen from the above embodiment, and the advantages thereof are as follows:
a source base station receives a first short message sent by source equipment, wherein an identifier carried by the first short message is a call application short message; the source base station sends a call establishment request to a switching control center, wherein the call establishment request comprises: the type of call and the identity of the devices participating in the call; the base station to which the equipment participating in the call belongs receives the call establishment instruction sent by the switching control center, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station according to the call establishment instruction; therefore, the broadband service request is realized in a short message mode, and a call channel is established by allocating resources. After the call channel is established, the devices participating in the call implement the application of control rights in the form of short messages. Therefore, the method of the embodiment of the invention realizes the control of the broadband multimedia trunking service by using the short message without expanding the existing call signaling.
According to the idea of the broadband multimedia trunking service control method of the embodiment of the invention, in practical application, not only the device has the requirement of the broadband service, but also the dispatching station has the requirement of the broadband service, so when the dispatching station has the requirement of the dispatching of the broadband service, the broadband service control processing can be performed according to the control method. Because the dispatching desk is an independent device and does not belong to any base station, when the dispatching desk needs to process the broadband service, the dispatching desk only needs to directly communicate with the SCC, the SCC communicates with the base station to which the target device belongs, and the base station to which the target device belongs communicates with the device participating in the broadband service through a short message, so that the broadband service processing is finally realized.
When one or more devices participating in the call want to exit the call, a call release request may be initiated actively, and particularly on the basis of the above control method embodiment 1, preferably, the method may further include:
the base station to which the equipment participating in the call belongs receives a third short message sent by the equipment participating in the call, wherein an identifier carried by the third short message is a call release short message; and the base station receiving the third short message releases the resources allocated to the equipment sending the third short message.
The processing according to the above-mentioned manner makes the device participating in the call initiate the call release request in the form of short message at any time in the process of participating in the call, so that the base station to which the device belongs can release the resource allocated to the device in time.
When the device participating in the call occupies the control right and the control right is no longer required to be occupied during the call, it is desirable to release the control right in time so that the other devices participating in the call can occupy the control right in time to ensure normal communication of the call, and on the basis of the above embodiment 1, preferably, the method further includes:
the base station to which the equipment participating in the call belongs receives a fourth short message sent by the control right belonging equipment belonging to the base station, wherein the identifier carried by the fourth short message is a control right release short message;
the base station receiving the fourth short message sends a control right release request to the switching control center, wherein the control right release request comprises: the identification of the equipment sending the fourth short message;
and the base station to which the equipment participating in the call belongs receives the control right notification instruction sent by the switching control center, and sends a short message carrying the control right attribution state to the equipment participating in the call belonging to the base station according to the control right notification instruction.
The base station to which the equipment participating in the call belongs informs the current control right belonging state to the equipment participating in the call belonging to the base station through a short message, so that the equipment participating in the call applies for the control right after knowing the state.
Of course, the above-mentioned call release and control right release can be actively monitored by the base station to which the device participating in the call belongs, and then it is determined whether to release the resource or release the control right, for example: when the time of the base station monitoring the call is greater than a first threshold value, releasing the resources allocated to the equipment, or when the time of monitoring the equipment occupying the control right currently is greater than a second threshold value, releasing the control right of the equipment, and the like. The manner in which the call release or the control right release is performed is not particularly limited.
Due to the variety of broadband service types, the following explains the control method provided by the present invention by taking a visible single call as an example.
Referring to fig. 2, which shows a flowchart of embodiment 2 of a broadband multimedia trunking service control method, in this embodiment, UE 1 represents a source device (calling party), RSC 1 represents an access subsystem session controller of a source base station, UE 2 represents a target device (called party), RSC 2 represents an access subsystem session controller of a base station to which the target device belongs, and the source base station and the base station to which the target device belongs both include a broadband channel module for allocating resources to broadband services. The method comprises the following steps:
step 201: the UE 1 applies for sending short messages to the RSC 1;
step 202: the RSC 1 sends a short message transmission permission instruction to the UE 1;
in practical application, corresponding operation steps are executed according to corresponding system short message use standards, such as: some systems use the standard to stipulate that send the short message and carry on step 201 and 202 first, some systems presume the priority of the apparatus in advance, the apparatus with higher priority does not need to carry out above-mentioned step 201 and 202, but send the short message directly; or, some systems preset the authority of the device, and when the device with higher authority is to send the short message, the subsequent step 203 can be directly performed, and steps 201 and 202 are omitted.
Step 203: the UE 1 sends a short message to the RSC 1, which may include: the identification is a call application short message, the call type is a visual single call, (the short message can be regarded as a visual single call establishment application instruction of the existing short message extension).
Step 204: the RSC 1 sends a short message acknowledgement to the UE 1, and the receiving is confirmed to be successful; (of course an acknowledgement may be sent)
Step 205: the RSC 1 judges the application of calling according to the content of the short message, and sends the visible single call establishment application to the SCC;
step 206: the SCC sends a call establishment instruction to the RSC 2 where the called UE 2 is located;
step 207: the RSC 2 where the called UE 2 is located sends a short message to the called UE 2, the short message including: UE 1 identity and request setup type. (the short message can be regarded as paging instruction information)
Step 208: the UE 2 sends short message confirmation to the called RSC 2, and the receiving is confirmed to be successful;
step 209: the UE 2 sends a short message confirmation paging response to the called RSC 2;
step 210: the called RSC 2 sends a short message acknowledgement to the UE 2;
step 211: the called RSC 2 transmits a short message carrying resource allocation information to the UE 2, the short message including resource information allocated to the UE 2. (the short message can be regarded as allocation resource signaling)
Step 212: the UE 2 sends a short message acknowledgement to the called RSC 2;
step 213: the called RSC 2 sends a single call establishment response instruction to the SCC;
step 214: the SCC sends a visible single call establishment response instruction to the RSC 1 where the calling party is;
step 215: the calling RSC 1 sends a short message carrying resource allocation information, which may include resource information allocated to UE 1, to the calling UE 1. (the short message can be regarded as allocation resource signaling)
Step 216: the calling UE 1 sends a short message acknowledgement to the home RSC 1.
It can be seen from the above steps 201 to 215 that a call of a broadband service is established between the UE 1 and the UE 2 in the form of a short message, and then both the source base station and the target base station allocate resources to the UE 1 and the UE 2 by using their own broadband channel module and narrowband channel module, so as to ensure that the broadband service channel between the UE 1 and the UE 2 is successfully established.
After the broadband service channel is successfully established, both the UE 1 and the UE 2 can apply for the option in the same manner, and the following explanation only takes the UE 1 as an example for applying the option.
Step 217: the UE 1 applies for sending short messages to the RSC 1;
step 218: the RSC 1 sends a short message transmission permission instruction to the UE 1;
steps 217-218 are the same as steps 201-202, and are not repeated herein.
Step 219: the UE 1 sends a short message to the RSC 1, the short message including: the system comprises an identifier, an equipment identity identification code and a request type, wherein the identifier is a control right application short message, and the request type is a control right application; (the short message may be regarded as a request for permission);
step 220: the RSC 1 sends a short message acknowledgement to the UE 1, and the receiving is confirmed to be successful;
step 221: the RSC 1 judges the right-of-sight application according to the content of the short message and sends the right-of-sight application to the SCC;
step 222: the SCC sends a right-of-sight application response instruction to the RSC 1 where the UE 1 is located;
step 223: the SCC sends a right-of-sight notification to the RSC 2 where the called UE 2 is located;
step 224: after receiving the right-of-sight response, the RSC 1 where the UE 1 is located sends a short message to the UE 1 to confirm the right-of-sight response;
step 225: after receiving the short message of the right-of-sight response, the UE 1 sends a short message confirmation to the RSC 1;
step 226: the RSC 2, having received the right-of-sight notification, transmits a right-of-sight notification short message to the UE 2 (notifying that the current control right belongs to the UE 1);
step 227: the UE 2 sends a view notification short message acknowledgement to the RSC 2 (confirming that it received the notification itself);
step 228: the RSC 2 sends a view notification response to the SCC.
The embodiment of the invention can be seen from the above embodiment, and the advantages thereof are as follows:
the method of the embodiment does not need to expand the existing call signaling, but utilizes the short message to realize the establishment of the broadband service and the control of the right of sight, and simultaneously utilizes the broadband channel module and the narrowband channel module in the base station to distribute resources for the broadband multimedia trunking service to support the broadband service processing, and the method is utilized to realize the broadband service of the visible single call.
When the broadband service requested by the source device is a cross-mode voice single call service (the calling party and the called party belong to different access subsystems), the control method is similar to the steps 201 to 227, the call type of the short message in the step 203 is changed into a cross-mode voice single call, the call type in the step 218 is a speaking right application, and the rest of the steps are referred to.
The following explains the control method provided by the present invention by taking a visual group call (one-to-many call) as an example.
Referring to fig. 3, which is a flowchart of embodiment 3 of a broadband multimedia trunking service control method, in this embodiment, a UE 1 represents a source device (calling party), a UE 1 belongs to a source base station, an RSC 1 represents an access subsystem session controller of the source base station, and a Group represents a target device (called party), where the target device may include multiple devices belonging to the same base station or multiple devices belonging to different base stations. RSCs represents the access subsystem session controller of the base station to which the target device belongs (the target device may belong to different base stations, which are distributed in different RSCs), and the base stations to which the source base station and the target device belong each include a broadband service unit for allocating resources. The method comprises the following steps:
step 301: the UE 1 applies for sending short messages to the RSC 1;
step 302: the RSC 1 sends a short message transmission permission instruction to the UE 1;
step 301 and step 302 are similar to steps 201 and 202 in embodiment 2, and are not described again here.
Step 303: the UE 1 sends a short message to the RSC 1, the short message including: the mobile terminal comprises an identifier, a UE 1 identity code, a Group identity code and a call type, wherein the identifier is a call application short message, and the call type is a visual Group call. (the short message can be regarded as the visible group call establishment application instruction of the existing short message extension)
Step 304: the RSC 1 sends a short message acknowledgement to the UE 1, and the receiving is confirmed to be successful;
step 305: the RSC 1 judges a call application according to the content of the short message, and sends a group call establishment application to the SCC;
step 306: the SCC sends a call establishment permission instruction to the RSC 1 where the calling UE 1 is located;
step 307: SCC sends group call establishment instruction to RSCs where all members participating in the call are;
as shown in fig. 3, the arrow of step 307 faces to the left, and when the target device belongs to the source base station, the SCC also needs to send a group call setup instruction to the source base station; in step 307, the arrow faces the right, and the SCC sends a Group call establishment instruction to the RSCs to which the members in the target device Group belong.
Step 308: all participating RSCs send multicast short messages to target equipment to allocate resources;
the base stations to which the target device belongs allocate resources for the target device through their own broadband service units, and the service is a visual group call, and then the base stations specifically allocate resources occupied by videos through the broadband service units, and allocate resources occupied by voices to the devices participating in the call through the narrowband channel units.
Step 309: the RSCs participating in the call send a group call setup response to the SCC.
After the broadband service channel is successfully established, both the UE 1 and the Group device can apply for the following manner, which is only explained by taking the UE 1 application option as an example.
Step 310: the UE 1 applies for sending short messages to the RSC 1;
step 311: the RSC 1 sends a short message transmission permission instruction to the UE 1;
steps 310-311 are the same as steps 201-202, and are not repeated herein.
Step 312: the UE 1 sends a short message to the RSC 1, the short message including: the system comprises an identifier, an equipment identity identification code and a calling type, wherein the identifier is a control right application short message, and the request type is a view right application; (the short message may be regarded as a request for permission);
step 313: the RSC 1 sends a short message acknowledgement to the UE 1, and the receiving is confirmed to be successful;
step 314: the RSC 1 judges the right-of-sight application according to the content of the short message and sends the right-of-sight application to the SCC;
step 315: the SCC sends a right-of-sight application response instruction to the RSC 1 where the UE 1 is located;
step 316: SCC sends sight notification to RSCs participating in the call;
step 317: after receiving the right-of-sight response, the RSC 1 where the UE 1 is located sends a short message to the UE 1 to confirm the right-of-sight response;
step 318: after receiving the short message of the right-of-sight response, the UE 1 sends a short message confirmation to the RSC 1;
step 319: RSCs receiving the visual right notice sends multicast short message to Group
Step 320: the RSCs sends a view notification response to the SCC.
The embodiment of the invention can be seen from the above embodiment, and the advantages thereof are as follows:
the method of the embodiment does not need to expand the existing call signaling, but utilizes the short message to realize the establishment of the broadband multimedia trunking service and the control of the right of sight, and simultaneously utilizes the broadband service unit in the base station to distribute resources for the broadband multimedia trunking service to support the broadband service processing, and utilizes the method to realize the broadband service of the visual group call.
When the broadband service requested by the source device is the cross-mode voice group call service, the control method is similar to the steps 301 to 320, the call type of the short message in the step 303 is changed to the cross-mode voice group call, the call type in the step 312 is the speaking right application, and the rest of the steps are referred to above.
Corresponding to the control method in embodiment 1, an embodiment of the present invention further provides a base station, configured to provide a broadband multimedia trunking service for a device. The base station is explained below by means of a specific embodiment.
Referring to fig. 4, a block diagram of an embodiment 1 of a base station is shown. The base station includes: a first receiving unit 401, a first transmitting unit 402, a second receiving unit 403, a resource allocating unit 404, a third receiving unit 405, a second transmitting unit 406, a fourth receiving unit 407, and a third transmitting unit 408. The internal structure and connection relationship of the base station will be further described below with reference to the operation principle of the base station.
A first receiving unit 401, configured to receive a first short message sent by a source device, where an identifier carried in the first short message is a call application short message;
a first sending unit 402, configured to send a call setup request to a switching control center, where the call setup request includes: the type of call and the identity of the devices participating in the call;
a second receiving unit 403, configured to receive a call setup instruction sent by the switching control center;
a resource allocation unit 404, configured to send a short message carrying resource allocation information to a device belonging to the base station and participating in a call according to the call establishment instruction;
a third receiving unit 405, configured to receive a second short message sent by a device that belongs to the local base station and participates in the call, where an identifier carried in the second short message is a control right application short message;
a second sending unit 406, configured to send a control right application request to the switching control center, where the control right application request includes: the identification of the equipment sending the second short message;
a fourth receiving unit 407, configured to receive a control right notification instruction sent by the switching control center;
a third sending unit 408, configured to send a short message carrying the control right attribution status to the device belonging to the local base station and participating in the call according to the control right notification instruction.
The first receiving unit receives a first short message sent by a source device, wherein an identifier carried by the first short message is a call application short message; in addition, the source device sends the first short message further includes a call type, a source device identifier and a target device identifier, so that the first sending unit sends a call establishment request to the switching control center according to the call type included in the first short message and the identifier of the device participating in the call, where the call establishment request includes: the type of call and the identity of the devices participating in the call. The call type contained in the call establishment request is the call type contained in the first short message; the identifier of the device participating in the call contained in the call setup request is the source device identifier and the target device identifier contained in the first short message.
The manner in which the base station allocates resources differs for different types of calls requested by the source device.
When the call type is a visual single call or a visual group call, preferably, the resource allocation unit may include:
the narrowband channel module is used for distributing resources occupied by voice for equipment which belongs to the base station and participates in the call and sending a short message carrying resource distribution information when the call type is visual single call or visual group call;
and the broadband channel module is used for distributing resources occupied by videos for the equipment which belongs to the base station and participates in the call when the call type is visual single call or visual group call, and sending a short message carrying resource distribution information.
When the call type is a cross-mode voice single call or a cross-mode voice group call or a video call, preferably, the resource allocation unit may include:
and the broadband channel module is used for allocating resources required by voice or resources required by video for the equipment belonging to the base station and participating in the call and sending the short message carrying the resource allocation information when the call type is a cross-mode voice single call or a cross-mode voice group call or a video call.
Preferably, the base station may further include:
a fifth receiving unit, configured to receive a third short message sent by the device participating in the call, where an identifier carried in the third short message is a call release short message;
and the resource releasing unit is used for releasing the resources allocated to the equipment for sending the third short message.
Preferably, the base station may further include:
a sixth receiving unit, configured to receive a fourth short message sent by the control right attribution device belonging to the local base station, where an identifier carried in the fourth short message is a control right release short message;
a fourth sending unit, configured to send a control right release request to the switching control center, where the control right release request includes: the identification of the equipment sending the fourth short message;
and the control right notification unit is used for sending the short message carrying the control right attribution state to the equipment which belongs to the base station and participates in the call according to the received control right notification instruction sent by the switching control center.
As can be seen from the above examples: in this embodiment, the base station can implement control of the broadband multimedia trunking service by using the short message, and simultaneously, a resource allocation unit in the base station allocates resources for the broadband multimedia trunking service to carry broadband data.
Further, the embodiment of the present invention also provides a hardware configuration of the base station, which may include at least one processor (e.g., CPU), at least one network interface or other communication interface, a memory, and at least one communication bus, for implementing connection communication between these devices. The processor is used to execute executable modules, such as computer programs, stored in the memory. The Memory may be a volatile Memory (volatile Memory), such as a Random Access Memory (RAM), or a non-volatile Memory (non-volatile Memory), such as a Read Only Memory (ROM), a flash Memory (english: flash Memory), a Hard Disk (english: Hard Disk Drive, abbreviated as HDD), or a Solid State Drive (english: Solid State Drive, abbreviated as SSD). The communication connection between the base station and at least one other network element is realized through at least one network interface (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network and the like can be used.
In some embodiments, the memory stores executable modules, which can be executed by the processor, wherein the executable modules include a first receiving unit 401, a first transmitting unit 402, a second receiving unit 403, a resource allocating unit 404, a third receiving unit 405, a second transmitting unit 406, a fourth receiving unit 407, and a third transmitting unit 408, wherein the resource allocating unit may include cards of a narrowband channel module and a wideband channel module. The specific implementation of each unit can refer to the corresponding unit disclosed in fig. 4, which is not described herein again.
The invention also provides a broadband multimedia trunking service control system, which is characterized by comprising the following components: a base station and a switching control center as described in the above base station embodiments; referring to fig. 5, a structure diagram of an embodiment 1 of a broadband multimedia trunking service control system is shown, in the diagram, a source base station and a target base station both use the base station described in the embodiment 1 of the base station; the base stations communicate with the devices through short messages respectively. The source base station and the target base station respectively comprise a broadband channel module and a narrowband channel module, and the narrowband channel module is used for distributing resources occupied by voice for equipment participating in calling when the calling type is visual single calling or visual group calling; the broadband channel module is used for distributing resources occupied by videos for the equipment participating in the call when the call type is a visual single call or a visual group call, or distributing resources needed by the voices or the videos for the equipment participating in the call when the call type is a cross-mode voice single call, a cross-mode voice group call or a video call.
Preferably, when the base station performs a cross-mode voice single call or group call service, the cross-mode call refers to a voice call between devices in different access subsystems, and if the cross-mode call is to be established, the base stations in the two different access subsystems must adopt the same codec format.
Preferably, the base station performs speech coding and decoding processing by using an AMR format or a PCM format. Of course, other encoding and decoding formats may be used for processing, and this embodiment is not limited in particular.
It is noted that relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be further noted that, as will be understood by those skilled in the art, all or part of the processes in the methods of the above embodiments may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The method, system and base station for controlling broadband multimedia trunking service provided by the present invention are introduced in detail, and the present invention is explained in principle and implementation manner by applying specific embodiments, and the description of the above embodiments is only used to help understanding the method and core ideas of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. A method for controlling broadband multimedia trunking service, the method comprising:
a source base station receives a first short message sent by source equipment, wherein an identifier carried by the first short message is a call application short message;
the source base station sends a call establishment request to a switching control center, wherein the call establishment request comprises: the type of call and the identity of the devices participating in the call;
the base station to which the equipment participating in the call belongs receives a call establishment instruction sent by the switching control center, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station according to the call establishment instruction;
the base station to which the equipment participating in the call belongs receives a second short message sent by the equipment participating in the call belonging to the base station, wherein the identifier carried by the second short message is a control right application short message;
the base station receiving the second short message sends a control right application request to the switching control center, wherein the control right application request comprises: the identification of the equipment sending the second short message;
the base station to which the equipment participating in the call belongs receives a control right notification instruction sent by the switching control center, and sends a short message carrying a control right attribution state to the equipment participating in the call belonging to the base station according to the control right notification instruction;
wherein, the sending a short message carrying resource allocation information to the device belonging to the base station and participating in the call according to the call establishment indication includes:
when the call type is visual single call or visual group call, the base station to which the equipment participating in the call belongs allocates resources required by video for the equipment participating in the call belonging to the base station through the broadband channel module, allocates resources required by voice for the equipment participating in the call belonging to the base station through the narrowband channel module, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station;
or,
when the call type is a cross-mode voice single call or a cross-mode voice group call or a video call, the base station to which the equipment participating in the call belongs allocates resources required by voice or resources required by video to the equipment participating in the call belonging to the base station through the broadband channel module, and sends a short message carrying resource allocation information to the equipment participating in the call belonging to the base station.
2. The method of claim 1, further comprising:
the base station to which the equipment participating in the call belongs receives a third short message sent by the equipment participating in the call, wherein an identifier carried by the third short message is a call release short message;
and the base station receiving the third short message releases the resources allocated to the equipment sending the third short message.
3. The method of claim 1, further comprising:
the base station to which the equipment participating in the call belongs receives a fourth short message sent by the control right belonging equipment belonging to the base station, wherein the identifier carried by the fourth short message is a control right release short message;
the base station receiving the fourth short message sends a control right release request to the switching control center, wherein the control right release request comprises: the identification of the equipment sending the fourth short message;
and the base station to which the equipment participating in the call belongs receives the control right notification instruction sent by the switching control center, and sends a short message carrying the control right attribution state to the equipment participating in the call belonging to the base station according to the control right notification instruction.
4. A base station, characterized in that the base station comprises:
a first receiving unit, configured to receive a first short message sent by a source device, where an identifier carried in the first short message is a call application short message;
a first sending unit, configured to send a call establishment request to a switching control center, where the call establishment request includes: the type of call and the identity of the devices participating in the call;
a second receiving unit, configured to receive a call establishment instruction sent by the switching control center;
a resource allocation unit, configured to send a short message carrying resource allocation information to a device belonging to the base station and participating in the call according to the call establishment instruction;
a third receiving unit, configured to receive a second short message sent by a device that participates in the call and belongs to the local base station, where an identifier carried in the second short message is a control right application short message;
a second sending unit, configured to send a control right application request to the switching control center, where the control right application request includes: the identification of the equipment sending the second short message;
a fourth receiving unit, configured to receive a control right notification instruction sent by the switching control center;
a third sending unit, configured to send a short message carrying a control right affiliation state to a device affiliated to the local base station and participating in a call according to the control right notification instruction;
wherein the resource allocation unit includes:
the narrowband channel module is used for distributing resources occupied by voice for equipment which belongs to the base station and participates in the call and sending a short message carrying resource distribution information when the call type is visual single call or visual group call; and/or the presence of a gas in the gas,
the broadband channel module is used for distributing resources occupied by videos for equipment which belongs to the base station and participates in the call when the call type is visual single call or visual group call, and sending short messages carrying resource distribution information; or when the call type is a cross-mode voice single call or a cross-mode voice group call or a video call, allocating resources required by voice or resources required by video for the equipment belonging to the base station and participating in the call, and sending a short message carrying resource allocation information.
5. The base station of claim 4, wherein the base station further comprises:
a fifth receiving unit, configured to receive a third short message sent by the device participating in the call, where an identifier carried in the third short message is a call release short message;
and the resource releasing unit is used for releasing the resources allocated to the equipment for sending the third short message.
6. The base station of claim 4, wherein the base station further comprises:
a sixth receiving unit, configured to receive a fourth short message sent by the control right attribution device belonging to the local base station, where an identifier carried in the fourth short message is a control right release short message;
a fourth sending unit, configured to send a control right release request to the switching control center, where the control right release request includes: the identification of the equipment sending the fourth short message;
and the control right notification unit is used for sending the short message carrying the control right attribution state to the equipment which belongs to the base station and participates in the call according to the received control right notification instruction sent by the switching control center.
7. A broadband multimedia trunking service control system, said system comprising:
the base station and the switching control center according to any one of claims 4 to 6; the base station communicates with the equipment through short messages; the base station distributes resources for the broadband service through the broadband channel unit of the base station.
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| CN105656968A (en) * | 2014-11-21 | 2016-06-08 | 哈尔滨海能达科技有限公司 | Cluster communication system, user equipment thereof, control device and dynamic group calling method |
| CN108307401B (en) * | 2016-08-26 | 2021-05-25 | 海能达通信股份有限公司 | Method and device for establishing communication connection and communication equipment |
| WO2018049627A1 (en) * | 2016-09-14 | 2018-03-22 | 海能达通信股份有限公司 | Cluster group call processing method, related device, and system |
| CN111294979B (en) * | 2018-12-07 | 2022-04-15 | 海能达通信股份有限公司 | Communication method and related equipment |
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