CN103002404B - DMR (Digital Mobile Radio) base station, radio access network and broadband multimedia trunked communication system - Google Patents

DMR (Digital Mobile Radio) base station, radio access network and broadband multimedia trunked communication system Download PDF

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Publication number
CN103002404B
CN103002404B CN201210547994.XA CN201210547994A CN103002404B CN 103002404 B CN103002404 B CN 103002404B CN 201210547994 A CN201210547994 A CN 201210547994A CN 103002404 B CN103002404 B CN 103002404B
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dmr
medium
ranc
rate
msu
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CN103002404A (en
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金桂财
魏守明
姜国千
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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Abstract

The embodiment of the invention discloses a DMR (Digital Mobile Radio) base station, a radio access network and a broadband multimedia trunked communication system. The DMR base station comprises at least a DMR-CHU (DMR Channel Unit), an MSU (Medium-rate Service Unit) and a RANC (Radio Access Network Controller) all of which are applied to the broadband multimedia trunked communication system, wherein the DMR-CHU and the MSU occupy different channel resources; the DMR-CHU and the RANC communicate with each other and forward a service control signaling and DMR narrowband data to the RANC and/or a terminal; a medium-rate service transmission channel is built between the MSU and the RANC to forward the medium-rate service data to the RANC and/or the terminal; a medium-rate service transmission channel is built by the RANC to forward the medium-rate service data to the MSU and/or an SCC (Switching Control Center), allocate DMR channels and forward the service control signaling and the DMR narrowband data to the DMR-CHU and/or the SCC. According to the embodiment of the invention, the conventional DMR base station can be enlarged; and the enlarged DMR base station not only can support DMR narrowband services, but also can support the medium-rate services.

Description

A kind of DMR base station, wireless access network and wideband multimedia trunked communication system
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of DMR base station, wireless access network and wideband multimedia trunked communication system.
Background technology
Trunked communication system is a kind of special command scheduling mobile communication system, is mainly used in professional moving communicating field.Different with common mobile communication, the maximum feature of trunking communication is, shared resource, contribution, shared channel equipment, has the wireless communication system of multipurpose service and high-effect command scheduling function.Trunked communication system Speech Communication adopts PTT (Push To Talk) button, and the mode pushed to talk with continues, and calledly need not can answer by off-hook, and the speed that continues, and can the functions such as group call be supported.
At present, trunking communicating technology mainly comprises the types such as Tetra (Terrestrial trunked radio), iDEN (integrated digital enhanced network) and DMR (digital mobile radio).Along with the development of the communication technology and the application of new technology, trunking communicating technology will to the Directional Extension of data broadband, business variation, terminal multimode and extension.
Wherein, DMR is a kind of narrow-band digital wireless communication technology realizing low cost, low complex degree, low-power consumption and highly effective.Based on 12.5KHz channel width, adopt channel coding/decoding technology and the voice encoding/decoding technology of constant enveloped modulation mode and advanced person; The transmission rate of single carrier continuous data is 9.6kbit/s; Cover based on great Qu system, greatly can reduce the maintenance cost in system synthesis construction cost and future.
DMR is narrow-band digital group system, supports DMR narrow band service, cannot support medium-rate business, e.g., transmit video data.And the trunked communication system in future all can concentrate on medium-rate business aspect to most business demand, therefore, how in existing DMR trunked communication system, to realize medium-rate business, make existing DMR trunked communication system not only can support original DMR narrow band service, can also support that medium-rate business becomes a current technical problem urgently to be resolved hurrily.
Summary of the invention
In order to solve the problems of the technologies described above, embodiments provide a kind of DMR base station, wireless access network and wideband multimedia trunked communication system, to expand existing DMR base station, make the DMR base station after expansion not only can support original DMR narrow band service, medium-rate business can also be supported.
The embodiment of the invention discloses following technical scheme:
A kind of digital mobile radio DMR base station, be applied in broadband multimedia cluster system, comprise: at least one DMR Channel Elements DMR-CHU, a medium-rate business unit MSU and radio access network controller RANC, wherein, described DMR-CHU and described MSU takies different channel resources;
At least one DMR-CHU described, for communicating with between described RANC, at RANC be terminal distribution DMR channel on forward uplink service control signal and DMR narrow band data to described RANC, and downlink business control signal and DMR narrow band data are handed down to terminal;
Described MSU, for setting up medium-rate service transmission channels with described RANC, described medium-rate service transmission channels forwarding up medium-rate business datum to described RANC, and descending medium-rate business datum is handed down to each terminal;
Described RANC, for setting up medium-rate service transmission channels with described MSU, in described medium-rate service transmission channels, is transmitted to described MSU by the descending medium-rate business datum that SCC sends; And the up medium-rate business datum that MSU forwards is transmitted to SCC; And communicate with described DMR-CHU, for each terminal distribution DMR channel, on described DMR channel, the downlink business control signal send SCC and DMR narrow band data are transmitted to described DMR-CHU, and the uplink service control signal sent by DMR-CHU and DMR narrow band data are transmitted to SCC.
Described business control signaling comprises medium-rate business control signaling and DMR standard control signal.
Preferably, general packet wireless service tunnel protocol GTP protocol forward medium-rate business datum is adopted between described MSU and described RANC.
Preferably, described MSU comprises:
First processing unit, carries out data processing for up medium-rate business datum terminal uploaded according to GTP agreement;
First forwarded upstream unit, for being transmitted to described RANC by the up medium-rate business datum after process in described medium-rate service transmission channels.
A kind of wireless access network, is applied in broadband multimedia cluster system, comprises the DMR base station that at least one is above-mentioned.
A kind of wideband multimedia trunked communication system, comprises at least one mode mobile terminal supporting DMR narrow band service and medium-rate business, the wireless access network RAN that at least one is above-mentioned, a switching control center SCC and at least one dispatching desk DC.
Preferably, user service registration and Call-Control1 is realized according to the Session initiation Protocol SIP expanded between described RAN and described SCC.
Preferably, between described RAN and described SCC according to the diameter protocol realization access authentication expanded and user data synchronization.
As can be seen from the above-described embodiment, medium-rate business unit is increased in existing DMR base station, and, the medium-rate business unit increased takies different channel resources between the DMR-CHU in existing DMR base station, make the DMR base station of expansion not only can support DMR narrow band service, medium-rate business can also be supported further.In addition, on the DMR-CHU in existing DMR base station, the function of expansion transmission medium-rate business control signaling, does not affect the use to DMR standard control signal yet.Farthest make use of existing resource, be conducive to arrowband group system and seamlessly transit to wideband multimedia cluster.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of an embodiment of a kind of DMR base station of the present invention;
Fig. 2 is the structural representation of MSU in the present invention;
Fig. 3 is the structural representation of an embodiment of a kind of wideband multimedia trunked communication system of the present invention;
Fig. 4 is the method flow diagram realizing medium-rate business in the present invention based on the wideband multimedia trunked communication system framework in embodiment three.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 1, it is a kind of DMR (digital mobile radio of the present invention, Digital Mobile Radio) structural representation of an embodiment of base station, this DMR base station 10 is applied in broadband multimedia cluster system, comprise at least one DMR-CHU101 (digital mobile radio Channel Elements, Digital Mobile Radio-Channel Unit), a MSU102 (medium-rate business unit, Medium-speed Service Unit) and a RANC103 (radio access network controller, Radio Access Network Controller), wherein, described DMR-CHU101 and described MSU102 takies different channel resources,
At least one DMR-CHU101 described, for communicating with between described RANC103, at RANC be terminal distribution DMR channel on forward uplink service control signal and DMR narrow band data to described RANC, and downlink business control signal and DMR narrow band data are handed down to each terminal;
Described MSU102, for setting up medium-rate service transmission channels with described RANC103, described medium-rate service transmission channels forwarding up medium-rate business datum to described RANC, and descending medium-rate business datum is handed down to each terminal;
Described RANC103, for setting up medium-rate service transmission channels with described MSU102, in described medium-rate service transmission channels, the descending medium-rate business datum that SCC sends is transmitted to described MSU, and the up medium-rate business datum that MSU forwards is transmitted to SCC; And communicate with described DMR-CHU101, for each terminal distribution DMR channel, on described DMR channel, the downlink business control signal send SCC and DMR narrow band data are transmitted to described DMR-CHU, and the uplink service control signal sent by DMR-CHU and DMR narrow band data are transmitted to SCC.
Described business control signaling comprises medium-rate business control signaling and DMR standard control signal.
Wherein, DMR channel comprises control channel and Traffic Channel, and the control signal of DMR business process of establishing transmits on a control channel, and DMR business is transmitted on a traffic channel to the control signal in service ending process after setting up.
Preferably, GTP (general packet wireless service tunnel protocol, GPRS Tunnelling Protocol) protocol forward medium-rate business datum is adopted between MSU102 and RANC103.
Preferred further, refer to Fig. 2, it is the structural representation of MSU in the present invention, and MSU102 comprises: the first processing unit 1021 and the first forwarded upstream unit 1022, wherein,
First processing unit 1021, carries out data processing for up medium-rate business datum terminal uploaded according to GTP agreement;
First forwarded upstream unit 1022, for being transmitted to described RANC103 by the up medium-rate business datum after process in described medium-rate service transmission channels.
Preferably, GTP protocol transmission business control signaling and traditional business data are adopted between described DMR-CHU and described RANC.
In the present invention, RANC had both been responsible for controlling DMR narrow band service, was also responsible for controlling the medium-rate business newly increased.As, in a visual calling, the existing voice control function of RANC (i.e. DMR narrow band service), has again video capability (i.e. medium-rate business).
Particularly, the control of RANC to legacy data traffic comprises: the transmitting-receiving of the data such as (namely former DMR call business controls), location information management, channel resource management, network resource management and voice that assisted call controls.
The control of RANC to the medium-rate business of expansion comprises: assisted call controls (i.e. medium-rate Service control), user and tunnel relation manages, the transmitting-receiving of network resource management, medium-rate data.
Wherein, assisted call controls is exactly call setup, (right of speech or data transmission route), calling release are safeguarded in calling; Location information management comprises the positional information of the terminal (UE) to all bimodulus, and namely the mobile terminal of so-called bimodulus just refers to supports legacy data traffic, also supports the terminal of medium-rate business; DMR channel resource is distributed/discharged to former DMR business when call setup/release; Between MSU and RANC, tunnel is set up when UE start-up logging/cancellation (UE-> MSU-> RANC)/is discharged.Between UE and MSU, channel distributes/discharges channel when business is set up/discharged.。RANC safeguards the relation in UE and tunnel, and MSU safeguards the relation of UE and channel.
About the communication between DMR-CHU and RANC, not in DMR critical field.Such as, the fixed configurations of port and channel can be adopted in the present invention program.Certainly, other communication mode also can be adopted to communicate, embodiment of the present invention example does not limit this.So-called Internet resources are exactly when call setup, and RANC and SCC, RANC and MSU consult IP and port, the voice be used to specify or the transmitting-receiving of data.Network resource management is unified management.So-called network resource management is exactly be call distribution or releasing network resources.The transmitting-receiving of voice or data, is exactly receive data from receiving port, then data is sent to the receiving port of the other side.
As can be seen from the above-described embodiment, medium-rate business unit is increased in existing DMR base station, and, the medium-rate business unit increased takies different channel resources between the DMR-CHU in existing DMR base station, make the DMR base station of expansion not only can support DMR narrow band service, medium-rate business can also be supported.In addition, on the DMR-CHU in existing DMR base station, the function of expansion transmission medium-rate business control signaling, does not affect the use to DMR standard control signal yet.Farthest make use of existing resource, be conducive to arrowband group system and seamlessly transit to wideband multimedia cluster.
Embodiment two
The present embodiment additionally provides a kind of wireless access network, is applied in broadband multimedia cluster system, comprises the DMR base station described at least one embodiment one.
As can be seen from the above-described embodiment, medium-rate business unit is increased further in existing DMR base station, and, the medium-rate business unit increased takies different channel resources between the DMR-CHU in existing DMR base station, make the DMR base station of expansion not only can support DMR narrow band service, medium-rate business can also be supported further.In addition, on the DMR-CHU in existing DMR base station, the function of expansion transmission medium-rate business control signaling, does not affect the use of DMR standard control signal yet.Farthest make use of existing resource, be conducive to arrowband group system and seamlessly transit to wideband multimedia cluster.
Embodiment three
Refer to Fig. 3, the structural representation of its embodiment being a kind of trunked communication system of the present invention, this system comprises: at least one supports the RAN302 (wireless access network described in the mode mobile terminal 301 of DMR narrow band service and medium-rate business, at least one embodiment two, Radio Access Net), a SCC303 (switching control center, Switch & Control Center) and at least one dispatching desk 304.
Preferably, user service registration and Call-Control1 is realized according to the SIP expanded (Session initiation Protocol, Session Initiation Protocol) between described RAN and described SCC.
Wherein, SIP is by ietf definition, an IP-based application layer control protocol.
Preferably, between described RAN and described SCC according to the diameter protocol realization access authentication expanded and user data synchronization.
Wherein, diameter agreement by the AAA working group of IETF as follow-on aaa protocol standard.Diameter agreement is the upgraded version of radius protocol, comprise basic agreement, NAS (network insertion service) agreement, EAP (easily extensible discriminating) agreement, MIP (Mobile IP) agreement and CMS (code message grammer) agreement etc.
As can be seen from the above-described embodiment, medium-rate business unit is increased further in existing DMR base station, and, the medium-rate business unit increased takies different channel resources between the DMR-CHU in existing DMR base station, make the DMR base station of expansion not only can support DMR narrow band service, medium-rate business can also be supported further.In addition, on the DMR-CHU in existing DMR base station, the function of expansion transmission medium-rate business control signaling, does not affect the use of DMR standard control signal yet.Farthest make use of existing resource, be conducive to arrowband group system and seamlessly transit to wideband multimedia cluster.
Based on the trunked communication system framework in Fig. 3, refer to Fig. 4, it is the method flow diagram realizing medium-rate business in the present invention based on the wideband multimedia trunked communication system framework in embodiment three, and the method comprises:
Step 401:UE start through DMR-CHU to RANC, carry out user's access authentication and user registration and user service registration;
Step 402:UE start is registered through MSU to RANC, for UE sets up medium-rate service channel between MSU and RANC;
Step 403:UE sends medium-rate business through DMR-CHU to RANC and sets up solicitation message; Its
In, the up path that medium-rate business sets up solicitation message is:
UE->DMR-CHU->RANC。
Step 404:RANC forwards medium-rate business to SCC and sets up solicitation message;
Step 405:SCC issues medium-rate business to RANC and sets up response message;
Step 406:RANC forwards medium-rate business through DMR-CHU to UE and sets up response message;
Wherein, medium-rate business is set up the downlink path of response message and is: RANC-> DMR-CHU-> UE.
Be there is by above-mentioned steps 403-406, UE the right performing medium-rate business.
Step 407:UE sends medium-rate business transmission route solicitation message through DMR-CHU to RANC;
Wherein, the up path of medium-rate business transmission route solicitation message is: UE-> DMR-CHU-> RANC.
Step 408:RANC forwards medium-rate business transmission route solicitation message to SCC;
Step 409:SCC issues medium-rate business transmission route grant message to RANC;
Step 410:RANC forwards medium-rate business transmission route grant message through DMR-CHU to UE;
Wherein, the downlink path of medium-rate business transmission route grant message is: RANC-> DMR-CHU-> UE.
By above-mentioned steps 407-410, UE, there is the transmission route of medium-rate data.
Step 411: after mandate, UE sends up medium-rate data through MSU to RANC;
Wherein, the up path of up medium-rate data is: UE-> MSU-> RANC-> SCC.
Step 412:RANC sends up RTP medium-rate data to SCC;
Step 413: after up medium-rate data are sent, UE sends medium-rate business transmission route release message through DMR-CHU to RANC;
Wherein, the up path of medium-rate business transmission route release message is: UE-> DMR-CHU-> RANC.
Step 414:RANC forwards medium-rate business transmission route release message to SCC;
Step 415:SCC issues medium-rate business transmission route release response message to RANC;
Step 416:RANC forwards medium-rate business transmission route release response message through DMR-CHU to UE;
Wherein, the downlink path of medium-rate business transmission route release response message is: RANC-> DMR-CHU-> UE.
By above-mentioned steps 413-416, the UE having data transmission route discharges transmission route, and after release, UE is in reception data mode.
Step 417:SCC issues descending RTP medium-rate data to RANC;
Step 418:RANC sends descending medium-rate data through MSU to UE;
Step 419: after descending medium-rate data receiver, UE sends medium-rate business release solicitation message through DMR-CHU to RANC;
Wherein, the up path of medium-rate business release solicitation message is: UE-> DMR-CHU-> RANC;
Step 420:RANC forwards medium-rate business release solicitation message to SCC;
Step 421:SCC issues medium-rate business release response message to RANC;
Step 422:RANC sends medium-rate business release response message through DMR-CHU to UE; Its
In, the downlink path of medium-rate business release response message is: RANC-> DMR-CHU-> UE.
Medium-rate business is discharged, medium-rate service ending by above-mentioned steps 419-422, UE.
It should be noted that, one of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above a kind of DMR base station provided by the present invention, wireless access network and wideband multimedia trunked communication system are described in detail, apply specific embodiment herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (7)

1. a digital mobile radio DMR base station, it is characterized in that, be applied in broadband multimedia cluster system, comprise: at least one DMR Channel Elements DMR-CHU, a medium-rate business unit MSU and radio access network controller RANC, wherein, described DMR-CHU and described MSU takies different channel resources;
At least one DMR-CHU described, for communicating with between described RANC, at RANC be terminal distribution DMR channel on forward uplink service control signal and DMR narrow band data to described RANC, and downlink business control signal and DMR narrow band data are handed down to terminal;
Described MSU, for setting up medium-rate service transmission channels with described RANC, described medium-rate service transmission channels forwarding up medium-rate business datum to described RANC, and descending medium-rate business datum is handed down to each terminal;
Described RANC, for setting up medium-rate service transmission channels with described MSU, in described medium-rate service transmission channels, the descending medium-rate business datum that switching control center SCC sends is transmitted to described MSU, and the up medium-rate business datum that MSU forwards is transmitted to SCC; And communicate with described DMR-CHU, for each terminal distribution DMR channel, on described DMR channel, the downlink business control signal send SCC and DMR narrow band data are transmitted to described DMR-CHU, and the uplink service control signal sent by DMR-CHU and DMR narrow band data are transmitted to SCC.
Described business control signaling comprises medium-rate business control signaling and DMR standard control signal.
2. base station according to claim 1, is characterized in that, adopts general packet wireless service tunnel protocol GTP protocol forward medium-rate business datum between described MSU and described RANC.
3. base station according to claim 2, is characterized in that, described MSU comprises:
First processing unit, carries out data processing for up medium-rate business datum terminal uploaded according to GTP agreement;
First forwarded upstream unit, for being transmitted to described RANC by the up medium-rate business datum after process in described medium-rate service transmission channels.
4. a wireless access network, is characterized in that, is applied in broadband multimedia cluster system, comprises at least one as the DMR base station in claim 1-3 as described in any one.
5. a wideband multimedia trunked communication system, it is characterized in that, comprise at least one mode mobile terminal supporting DMR narrow band service and medium-rate business, at least one wireless access network RAN as claimed in claim 4, a switching control center SCC and at least one dispatching desk DC.
6. system according to claim 5, is characterized in that, realizes user service registration and Call-Control1 between described RAN and described SCC according to the Session initiation Protocol SIP expanded.
7. system according to claim 5, is characterized in that, according to the diameter protocol realization access authentication expanded and user data synchronization between described RAN and described SCC.
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CN101489186A (en) * 2002-09-13 2009-07-22 三星电子株式会社 Method for providing interactive data service in a mobile communication system

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