CN101060664A - A TD-SCDMA technology-based wireless cluster communication system - Google Patents
A TD-SCDMA technology-based wireless cluster communication system Download PDFInfo
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Abstract
Based on TD-SCDMA technology, the disclosed wireless cluster communication system adds a relative cluster business process module, i. e. , cluster core network or business node, and also adds the relative interfaces and protocols. This invention can provide both public and cluster business.
Description
Technical field
The present invention relates to the trunked communication system technical field, relate in particular to a kind of wireless cluster communication system based on TD-SCDMA technology.
Background technology
Cluster communication service is a kind of half-duplex bidirectional business, is characterized in grouping busy or group calling, and once business can comprise a plurality of users, and these users are referred to as one group.Carry out in the process in business, can only there be user's speech the interior while of group of carrying out group calling, is referred to as the speaker, and other user can only listen, and is referred to as the hearer.Therefore, an important resource is a right of speech in the cluster communication service, and the speaker has right of speech, carries out in the process in business, and the speaker can discharge right of speech, and the hearer can apply for right of speech and become new speaker.Group service can be initiated by any one user in the group, is perhaps initiated by some special users, and these special users are referred to as dispatching desk usually.When a user initiates group service, will initiate paging to all users in organizing, so that make the interior user of all groups add this business, a plurality of groups of interior users converse simultaneously, thereby reach the effect of " getting ready to go into action in hundreds ".
Cluster communication service requires the speed that continues fast, and therefore, cluster communication service also has the characteristics of " push-to-talk ", i.e. and " Push To Talk ", therefore, cluster communication service is called the PTT business again for short.If the user wishes to initiate cluster communication service, perhaps in business procedure, apply for right of speech, the user only need press the special key (PTT key) on the colony terminal, need not dialing procedure, and other user's automatic reception does not have the ring process.It is exactly to be used for various scheduling that the typical case of cluster communication service uses, and therefore, group service also is referred to as dispatching services, and trunked communication system also is referred to as dispatching patcher.
Wireless cluster communication system is an important branch of mobile communication system, just because of the These characteristics that cluster communication service had, it is shared that the available channel that wireless cluster communication system had can be all users of system, have automatic selective channel function, it is the multipurpose of shared resource, contribution, shared channel equipment and service, dynamical wireless communication system.
With respect to above-mentioned trunked communication system, according to user and business characteristic, another one important branch in the mobile communication system is a public access mobile radio, global communication (the GSM that comprises the second generation, GlobleSystem of Mobile Communication) system, code division multiple access (CDMA, Code DivisionMultiple Access) system, Wideband Code Division Multiple Access (WCDMA) (the WCDMA of the third generation, Wideband CodeDivision Multiple Access) system, TD SDMA (TD-SCDMA, TimeDivision-Synchronous Code Division Multiple Access) system.
The network configuration of TD-SCDMA public access mobile radio, as shown in Figure 1, wherein network side comprises core net CN and universal land radio access web (UTRAN) two parts.The core net CN of TD-SCDMA system is the core net of GSM-MPA framework, comprise circuit domain (CS territory, CircuitSwitch) Mobile Switching Center Server (MSC Server), circuit domain media gateway (CS MGW) and gateway MSC server (GMSC Server); Service universal packet wireless business affair (GPRS) support node (SGSN) and the ggsn (GGSN) of packet domain (PS territory, Packet Switch); Also comprise public part attaching position register (HLR) in addition, VLR Visitor Location Register (VLR), AUC (AuC), equipment identity register network elements such as (EIR).Be connected the core net part of construction system between the above-mentioned core network element by corresponding interface.Wireless access network UTRAN comprises radio network controller (RNC) and Node B (Node B), and RNC is connected by Iub interface with Node B, is connected the wireless access mesh portions of construction system between the RNC by the Iur interface.The RNC of wireless access network is connected with SGSN with the MSC Server/CS MGW of core net respectively with the IuPS interface by the IuCS interface, constitutes the TD-SCDMA public access mobile radio.Above-mentioned detailed content can be referring to the standard 3GPP TS23.002 " Network architecture " of TD-SCDMA system.
Development along with wireless mobile telecommunication technology, the development of especially public wireless mobile telecommunication technology, wireless cluster communication system has obtained development rapidly, from early stage wireless tranceiver system by point-to-point half-duplex operation, to multichannel first generation trunked communication system, arrive the second generation digital clustering communication system that adopts the TDMA mode again, as VGCS (voice group call service) system based on GSM standard.The wireless cluster communication system capacity is increasing, uses also more and more widely.The maturation that TD-SCDMA technology has developed in the present third generation public mobile communication technology is necessary to provide a kind of wireless cluster communication system based on TD-SCDMA technology.
Summary of the invention
Technical problem to be solved by this invention is, a kind of wireless cluster communication system based on TD-SCDMA technology is provided, in order to based on existing TD-SCDMA technology, by on the network configuration basis of TD-SCDMA public access mobile radio, increasing corresponding group service processing section, realization can provide the public mobile communication business, and the function of group service also can be provided.
The invention provides a kind of wireless cluster communication system, comprising based on TD-SCDMA technology:
TD-SCDMA public access mobile radio core net comprises Mobile Switching Center Server/circuit domain medium webmaster and service universal grouping wireless business supporting node;
Wireless access network comprises at least one radio network controller and at least one Node B;
Its characteristics are that described system also comprises a cluster core net, are connected with described wireless access network by the IuTS interface, comprise a cluster core net node that links to each other with wireless access network, and this cluster core net node comprises:
The scheduling controlling server is connected with described radio network controller by the IuTS interface, is used to handle dispatching services, finishes to comprise subscription authentication, sets up, safeguards and discharge various trunked call services, carries out the right of speech scheduling;
The scheduling controlling register, be used for storage and management group and user profile, advance to be connected with described scheduling controlling server, interface therebetween is used to carry out that the providing of calling subscriber's authentication and authentication, group calling attribute information, user's mobility information is mutual, group and user's information inquiry;
The dispatching desk acting server, be used to insert all kinds dispatching desk, be connected with described scheduling controlling server, interface therebetween is used to carry out that business information between dispatching desk and described dispatching desk acting server is mutual, the right of speech scheduling control information is mutual, be connected with the scheduling controlling register simultaneously, interface therebetween is used to carry out authentication and authentication, dispatching desk and turnkey console management group and group member's information of dispatching desk and described turnkey console;
Turnkey console, offering operator's management uses to be used for input, to safeguard group and user profile, be connected the interactive information when interface therebetween is used for transmission network operator and administers and maintains the group of described scheduling controlling register and user profile by client management system with described scheduling controlling register.
Described system further comprises:
At least one end user device, by with described Node B between the Uu interface be connected with wireless access network, and then be connected with described cluster core net, in order under free position, to initiate and the response group service by the IuTS interface.
Described wireless access network, have with the TD-SCDMA public access mobile radio in the identical network configuration of universal land radio access web,
By radio network controller and IuCS interface between described Mobile Switching Center Server/circuit domain medium webmaster and the IuPS interface between radio network controller and the described service universal grouping wireless business supporting node wherein, carry out the public mobile communication service interaction of described wireless cluster communication system;
IuTS interface by between radio network controller and the described scheduling controlling server carries out with the group service of described wireless cluster communication system mutual with the form of grouped data;
Wherein, described IuTS interface, be interface or the network of supporting packet data transmission, be used to transmit the group service control command that described cluster core net is set up or revised or delete to the group service of described wireless access network initiation, carrying forward direction and/or reverse group service data, interactive information between carrying core net and the trunking terminal user equipment, and a cluster group user in the group service shares a communication path on this IuTS interface.
Described wireless access network, the management and the implementation method of support TD-SCDMA public mobile communication business; Aspect the group service support, carry out the group service management in the mode of group service, interface resource and channel resource by the cell allocation group service, cluster control messages that will receive from the sub-district and business datum send to the cluster core net in the mode of group service, and the control messages that will receive from the cluster core net and business datum are duplicated in the mode of group service and be distributed to the sub-district.
Between the service universal grouping wireless business supporting node of described TD-SCDMA public access mobile radio core net and the scheduling controlling server in the described cluster core net, can also there be an interface, this interface provides the information interaction carrying based on Ethernet and Internet agreement, in order to the relevant information of portable terminal mobile management, the information interaction that safety management is relevant to be provided.
The present invention also provides a kind of wireless cluster communication system based on TD-SCDMA technology, comprising:
TD-SCDMA public access mobile radio core net comprises Mobile Switching Center Server/circuit domain medium webmaster, service universal grouping wireless business supporting node, ggsn;
Wireless access network comprises at least one radio network controller and at least one Node B;
Its characteristics are that described TD-SCDMA public access mobile radio core net also comprises a group service node, and this group service node comprises:
The scheduling controlling server, be connected with described service universal grouping wireless business supporting node, or be connected with described ggsn, connecting interface wherein provides the information interaction carrying based on Ethernet and Internet agreement, be used to handle dispatching services, finish and comprise subscription authentication, set up, safeguard and discharge various trunked call services, carry out the right of speech scheduling;
The scheduling controlling register, be used for storage and management group and user profile, be connected with described scheduling controlling server, interface therebetween is used to carry out that the providing of calling subscriber's authentication and authentication, group calling attribute information, user's mobility information is mutual, group and user's information inquiry;
The dispatching desk acting server, be used to insert all kinds dispatching desk, be connected with described scheduling controlling server, interface therebetween is used to carry out that business information between dispatching desk and described dispatching desk acting server is mutual, the right of speech scheduling control information is mutual, be connected with the scheduling controlling register simultaneously, interface therebetween is used to carry out authentication and authentication, dispatching desk and turnkey console management group and group member's information of dispatching desk and described turnkey console;
Turnkey console, offering operator's management uses to be used for input, to safeguard group and user profile, be connected the interactive information when interface therebetween is used for transmission network operator and administers and maintains the group of described scheduling controlling register and user profile by client management system with described scheduling controlling register.
Described system further comprises:
At least one end user device, by with described Node B between the Uu interface be connected with wireless access network, and then by IuPS interface, IuCS interface and comprise that the described TD-SCDMA public access mobile radio core net of group service node is connected, in order to initiation under free position and response group service, and/or in order to support the public mobile communication business.
Described service universal grouping wireless business supporting node, have the traffic differentiation function of distinguishing group service and ordinary groups territory business, provide relevant control of group service and business datum the IuPS interface and and the group service node between interface between forwarding; Wherein, described IuPS interface, comprise repertoire and characteristic that the IuTS interface is supported, be used to transmit the group service control command that described cluster core net is set up or revised or delete to the group service of described wireless access network initiation, carrying forward direction and/or reverse group service data, the interactive information between carrying core net and the trunking terminal user equipment.
Described ggsn, comprise in order to distinguishing the traffic differentiation function of group service and ordinary packet territory business, and provide the relevant control of group service and business datum and the interface of service universal grouping wireless business supporting node and and the group service node between interface between forwarding.Interface between described service universal grouping wireless business supporting node and described ggsn expands the tenability that has group service relevant.
Wireless cluster communication system based on TD-SCDMA technology of the present invention, based on the TD-SCDMA public access mobile radio, introduce the part that is used for the Processing Cluster business, made this system both can support the public mobile communication business, also can support cluster communication service.Because the present invention adopts the mode of stack to carry out system design, original TD-SCDMA public access mobile radio influence is minimized, be convenient on the basis of original TD-SCDMA public access mobile radio, increase and carry out the TD-SCDMA cluster communication service, and do not influence carrying out of public mobile communication business.
Description of drawings
Fig. 1 is the network structure of existing TD-SCDMA public access mobile radio;
Fig. 2 is a TD-SCDMA wireless cluster communication system network structure of the present invention;
Fig. 3 is a Uu sets of interfaces group business related protocol implementation schematic diagram in the wireless access network of the present invention;
Fig. 4 is the another kind of implementation schematic diagram of Uu sets of interfaces group business related protocol in the wireless access network of the present invention;
Fig. 5 is another network structure of TD-SCDMA trunked communication system of the present invention;
Fig. 6 is another network structure of TD-SCDMA trunked communication system of the present invention;
Fig. 7 is another network structure of TD-SCDMA trunked communication system of the present invention.
Embodiment
A kind of wireless cluster communication system provided by the invention based on TD-SCDMA technology, be called for short the TD-SCDMA wireless cluster communication system, native system is introduced the group service processing section based on the TD-SCDMA public access mobile radio, thus complete compatible TD-SCDMA public access mobile radio.
A kind of scheme of the present invention as shown in Figure 2.On network configuration, the TD-SCDMA wireless cluster communication system comprises core net and wireless access network two parts, wherein, core net further comprises cluster core net and TD-SCDMA public access mobile radio core net two parts, separate, finish the controlled function of group service and public mobile communication business respectively.
Wireless access network in employing of wireless access mesh portions and the TD-SCDMA public access mobile radio, promptly the identical network configuration of UTRAN (universal land radio access web) is referred to as to share the TD-SCDMA wireless access network.Shared TD-SCDMA wireless access network is connected with the core net of TD-SCDMA public access mobile radio by the Iu interface of standard, realizes the access function of public mobile communication business; Sharing the TD-SCDMA wireless access network partly is connected with the cluster core net by interface or the network of supporting packet data transmission, be referred to as the IuTS interface, realize the access of group service, and, on this interface, one group of cluster user in group service is shared a communication path.
The Radio interface protocols stack of system of the present invention is based on the Radio interface protocols stack of TD-SCDMA public access mobile radio, by increasing logic channel, transmission channel and the physical channel of group service special use, and group service dedicated signaling process and message, thereby system can carry out group service not influencing under the situation that the public mobile communication business carries out.
In shared TD-SCDMA wireless access network, system supports the management and the implementation method of public mobile communication business fully, aspect the group service support, carry out the group service management in the mode of group service, interface resource and channel resource by the cell allocation group service, cluster control messages that will receive from the sub-district and business datum send to core net in the mode of group service, and the control messages that will receive from core net and business datum are duplicated in the mode of group service and be distributed to the sub-district.
In another implementation, the TCS in the TD-SCDMA trunked communication system core net can also be connected with the SGSN in the TD-SCDMA public access mobile radio core net.
In another implementation, the TD-SCDMA trunked communication system does not have special-purpose cluster core net, and be based on SGSN in the PS territory in the TD-SCDMA public access mobile radio core net, the set of the network element in the cluster core net is connected with SGSN as a group service node.
In another is realized, the TD-SCDMA trunked communication system does not have special-purpose cluster core net, and be based on GGSN in the PS territory in the TD-SCDMA public access mobile radio core net, the set of the network element in the cluster core net is connected with GGSN as a group service node.
Group system of the present invention can provide (perhaps the being referred to as group calling) business of grouping busy effectively, and other group service relatively, as semiduplex point-to-point service (being referred to as the cluster individual calling), group short message etc., and for operator provide control and management function.Above-mentioned business is initiated by colony terminal, and is handled by the special cluster core network based on packet data functionality, provides access bearer by the Radio Access Network based on the TD-SCDMA wireless technology.
On hardware was realized, the hardware device of native system comprised equipment and the module in a large amount of TD-SCDMA public access mobile radios, as subscriber equipment (UE), and radio network controller (RNC), Node B (Node B).And the relevant hardware of group service is realized can being designed to the optional equipment of these equipment so that additional function and business to be provided, perhaps append in the hardware of these equipment fully and realize in the mode of software module, and the characteristic of complete compatible TD-SCDMA public access mobile radio, and the cluster core net also can be based on hardware device and the module in the TD-SCDMA public access mobile radio core net, realize the software module of group service control and management, realize the function that group service is relevant.
TD-SCDMA wireless cluster communication system of the present invention is on the basis of TD-SCDMA public access mobile radio, has introduced the cluster core net, as shown in Figure 2, is an embodiment of TD-SCDMA wireless cluster communication system of the present invention.The TD-SCDMA wireless cluster communication system comprises end user device (UE), wireless access network and core net, and wherein core net is divided into two independent parts: TD-SCDMA public access mobile radio core net and cluster core net; Wireless access network is shared, and supports TD-SCDMA public access mobile radio and cluster core net simultaneously.Therefore, TD-SCDMA wireless cluster communication system of the present invention can either provide the public mobile communication business, also can provide group service, perhaps is referred to as dispatching services, perhaps is referred to as PTT (Push To Talk) business.
Core net in TD-SCDMA public access mobile radio core net in the said system and the existing TD-SCDMA public access mobile radio is identical, based on the GSM-MAP framework, comprise two territories in circuit (CS) territory and grouping (PS) territory, in these two territories, network element MSCServer/CS MGW wherein is connected with shared wireless access network with the IuPS interface by IuCS respectively with SGSN, IuCS wherein and IuPS interface be entirely identical to that core net in the TD-SCDMA public access mobile radio is connected with wireless access network IuCS and IuPS interface.
Said system has independently been introduced a cluster of domain and corresponding cluster core net in core-network side, and therefore, in fact wireless cluster communication system of the present invention comprises three territories, i.e. CS territory, PS territory and cluster of domain.In the cluster core net, its function that need finish can be realized by different network elements as required.As shown in Figure 2, the cluster core net can comprise following network element: the scheduling controlling server (TCS) of handling dispatching services, be used to store and the scheduling controlling register (TCR) of managing relevant group and user profile, be used to insert the dispatching desk acting server (DAS) of all kinds dispatching desk, and operator's management use, be used for input, safeguard turnkey console (Operator) about group and user profile.
Wherein:
TCS is the major control server in the group system, is the control centre of group system, finishes to comprise subscription authentication, sets up, and safeguards and discharges various trunked calls (as group calling and individual calling) business, carries out function such as right of speech scheduling and handles at interior various group services;
The major function of TCR is storage and leading subscriber and group data information, comprises group identity information, group CAMEL-Subscription-Information, group calling attribute information and group member's information list etc.;
The major function of DAS is to insert various dispatching desks and turnkey console, so that dispatching desk and turnkey console can participate in carrying out the dispatching management and VPN (the Virtual Private Network) management of group service;
Operator is that system offers the client management system that operator carries out user management, and it can be used for safeguarding all user profile, and is upright to set up, revise, and deletion, the user increases, and revises operations such as deletion.
Four network elements in the above-mentioned cluster core net can be formed a cluster core net node jointly.A cluster core net node inside, link to each other by corresponding interface between the inner network element of above-mentioned core net, cooperatively interact and finish the group service controlled function.These interfaces can provide information exchange between network element based on Ethernet and Internet agreement.Wherein:
Interface between TCS and the TCR is mainly used to carry out calling subscriber's authentication and authentication, the providing of group calling attribute information, and user's mobility information is mutual, group and user's operations such as information inquiry;
It is mutual that interface between TCS and the DAS is mainly used to the business information of carrying out between dispatching desk and DAS, and the right of speech scheduling control information waits operation alternately;
Interface between DAS and the TCR is mainly used to carry out the authentication and the authentication of dispatching desk and turnkey console, operations such as dispatching desk and turnkey console management group and group member's information;
Interactive information when the interface between TCR and the Operator is mainly used to transmission network operator and administers and maintains group among the TCR and user profile by client management system.
In addition, also be connected between the different cluster core net nodes in the TD-SCDMA group system core net by corresponding interface, comprise interface between the TCS and the interface between the TCR, to realize the group service of trans-sectoral affair node, interface can provide the information interaction carrying based on Ethernet and Internet agreement.
Shared TD-SCDMA wireless access network among the present invention is shared by TD-SCDMA public access mobile radio and trunked communication system, has and both supports the public mobile communication business, supports the ability of group service again.
As shown in Figure 2, on network configuration, it is identical with wireless access network in the existing TD-SCDMA public access mobile radio shown in Figure 1 to share the TD-SCDMA wireless access network.
Aspect support public mobile communication business function, shared TD-SCDMA wireless access network is equal to the wireless access network in the TD-SCDMA public access mobile radio fully, comprise the IuCS and the IuPS interface function that are connected with TD-SCDMA public access mobile radio core net, the Iur interface function that is connected between the RNC in the wireless access network, the Iub interface function that RNC is connected with Node, and RNC and the function of Node B network element aspect support public mobile communication business.
Aspect the support group service, RNC is connected with TCS in the cluster core net by interface or the network of supporting packet data transmission, is referred to as the IuTS interface, carries out information interaction with the form and the cluster core net of grouped data, the especially transmission of business datum.This interface major function comprises: core net is initiated group service to wireless access network and is set up, and revises, and deletion waits group service control command, carrying forward direction and/or reverse group service data, the interactive information between carrying core net and the colony terminal etc.On the specific implementation, the transport network layer of the interface between RNC and the TCS can adopt and protocol stack structure like the IuPS interface class, also can adopt A8/A9, perhaps protocol stack structure like the A10/A11 interface class.
On the IuTS interface therein, because group service, as group calling, in the business procedure, business control information aspect, all control messages are all relevant with group, rather than certain terminal-specific; The business information aspect, in a certain moment, up direction has only speaker's terminal need send business information to core net, and all hearer's terminals receptions of down direction is from the identical business information of same speaker.Therefore, on the IuTS interface, at service control layer, perhaps be referred to as wireless network layer, a group shares a signaling connection and is connected with data.It is a two-way connection that signaling connects, be used for occurring in the bearing cluster service among this RNC with all relevant control messages of this group service of this group, comprise interactive information between core net and the wireless access network and the interactive information between colony terminal and the core net; It is a two-way connection that data connect, and is used for the bearing cluster service data, comprises the possible up business datum from speaker in the group service from RNC to TCS, the descending business datum of being transmitted by the cluster core net that sends to hearer in the group service.Can realize most possibly that like this group of resources is shared, improve resource utilization.
In native system,, support the access of group service again owing to share the access that the TD-SCDMA Radio Access Network should be supported the public mobile communication business.Therefore, the Radio interface protocols stack of the complete compatible TD-SCDMA public communication system of Radio interface protocols stack in the native system.In order to support group service, can be on the basis of the Radio interface protocols stack of TD-SCDMA public communication system, adopt the mode that increases to introduce logic channel, transmission channel and the physical channel of group service special use, and group service dedicated signaling process and message, thereby the realization system is not influencing the function of carrying out group service under the situation that the public mobile communication business carries out.
At wave point, promptly in the wireless access layer protocol on the Uu interface, the content that group service relates to comprises RRC, RLC, agreements such as MAC and PHY.In order to support group service, need in above-mentioned protocol stack, increase appropriate functional:
In the PHY agreement, it is physical layer protocol, need to increase and support the special-purpose function of sharing physical channel of one group of cluster, comprise a up shared physical channel and a Physical Downlink Shared Channel, be used to carry the trunking signal message and the group service data of a group;
At MAC agreement and rlc protocol, promptly medium access control layer protocol and wireless chain control layer agreement need the transmission channel and the logic channel support function that increase the up of corresponding cluster special use and go ahead of the rest;
Correspondingly, at mac-layer protocol and PHY layer protocol, also need to increase the cluster dedicated logical channel to the cluster dedicated transmission channel, the cluster dedicated transmission channel is to the mapping function of cluster DPCH;
In the RRC agreement, need to increase the signaling procedure of group service special use, to support the initial foundation of group service, the configuration of cluster Dedicated Traffic Channel, the called paging of group service, the right of speech management of group service process, functions such as the release of group service.
At shared TD-SCDMA wireless access network internal, RNC and Iub interface between the Node adopt fully with the TD-SCDMA public access mobile radio in the identical protocol stack structure of Iub interface of wireless access network internal, and based on this, in the NBAP agreement of the chain of command of wireless network layer, need to increase the management function of cluster group Radio Link, to support cluster Physical Shared Channel and cluster to share the foundation of transmission channel, revise functions such as deletion; In the FP of user's face agreement, need to increase the support function of cluster being shared transmission channel.And in order to improve the level of resources utilization, be that a group sets up one and shares a chain of command and connect and is connected with user's face in a sub-district, the chain of command connection is used for the control messages of bearing cluster service, and the connection of user's face is used for the bearing cluster service data.Further, if group service relates to a plurality of sub-districts in a Node B, a plurality of sub-districts can also be shared a chain of command and be connected.
Share the TD-SCDMA wireless access network and support the public mobile communication business fully, the method in the wireless access network in its management and implementation method and the TD-SCDMA public mobile communication system is identical.For group service, on the Uu interface,, can in RNC or cell range, adopt the mode of resource-sharing to manage and realize by group service according to the characteristics of group service, comprising chain of command protocol processes resource, user plane protocol is handled resource and channel resource etc.In addition, because on the IuTS interface, its signaling connect is connected with data be a RNC administer all to participate in the group member terminal of certain group service shared, therefore, if group service relates to a plurality of cluster user terminals in a plurality of sub-districts, in RNC, need the core net group service control messages that will receive from the IuTS interface and business datum to duplicate and be distributed to the sub-district in the mode of group service, group service control messages that will receive from the sub-district and business datum send to core net in the mode of group service by the IuTS interface, and the business datum that wherein sends to core net is only from the sub-district at speaker place.
Figure 3 shows that an embodiment of management of group service on the Uu interface and implementation method.
The realization of physical layer comprises the Node B of network side and the physical layer processing unit of terminal.In physical layer, a group service that is a group in each sub-district distributes one group of group service DPCH, comprise a up shared physical channel and a Physical Downlink Shared Channel, this group is multiplexing, chnnel coding, spread spectrum, it is identical with DPCH in the public communications service to modulate the characteristic aspect such as burst structure of channel, aspect physical layer signaling, special-purpose the sharing on the physical channel of descending cluster can be supported TFCI (transformat combination indication), TPC (transmitting power control) and SS (synchronizing symbol), the special-purpose physical channel of sharing of up cluster can be supported TFCI, does not support TPC and SS.Physical layer also needs to finish the cluster dedicated transmission channel is mapped to function on the cluster DPCH.
As shown in Figure 3, MAC agreement aspect, because the special-purpose transmission channel of sharing of cluster is shared by a plurality of cluster user terminals in cell range, therefore can support the special-purpose transmission channel of sharing of cluster by the MAC-c/sh of each sub-district, at this moment, aspect rlc protocol, one time group service can be shared the RLC entity in the RNC scope, wherein, comprise the RLC entity of user's face and the RLC entity of a chain of command.Down direction, user's face RLC entity receives the core net group service data from the IuTS interface, duplicates this data, is distributed to the MAC-c/sh entity of each sub-district with the form of cluster dedicated service logic channel; Chain of command RLC entity receives the descending cluster control messages that the chain of command management entity sends simultaneously, duplicate this message, be distributed to the MAC-c/sh entity of each sub-district with the form of the special-purpose control logic channel of cluster, and the MAC-c/sh entity is finished above-mentioned logic channel to the multiplexing of descending cluster dedicated transmission channel and mapping.Up direction, MAC-c/sh entity in each sub-district receives and the up cluster dedicated transmission channel of demultiplexing, the control messages of the special-purpose control logic channel of cluster is sent to the RLC entity of chain of command, the business datum of cluster dedicated service logic channel is sent to the RLC entity of user's face, and the RLC entity further sends to these message and data respectively the chain of command management entity and sends to the cluster core net by the IuTS interface.But,, only on the up cluster dedicated logical channel in the sub-district at speaker user place control messages and business datum are arranged owing in the business procedure, may have only the speaker just can use Uplink Shared Channel.
As shown in Figure 4, aspect MAC and rlc protocol, for special-purpose transmission channel and the logic channel shared of cluster, can also increase a kind of MAC entity type, being referred to as MAC-t supports, group service in the RNC scope, can share except that the RLC entity, can also comprise this MAC-t functional entity.At this moment, down direction, the shared logic channel of at first being finished descending cluster special use by MAC-t comprises chain of command and user's face shared logic channel to the mapping of sharing transmission channel and multiplexing, duplicate the data of sharing transmission channel then, be distributed to each sub-district with the form of transmission channel; Up direction, receive and the up cluster dedicated transmission channel of demultiplexing by the MAC-t entity, the control messages of the special-purpose control logic channel of cluster is sent to the RLC entity of chain of command, the business datum of cluster dedicated service logic channel is sent to the RLC entity of user's face, equally, owing in the business procedure, may have only the speaker just can use Uplink Shared Channel, so only on the up cluster dedicated transmission channel in the sub-district at speaker user place control messages and business datum are arranged.
Control logic channel for the cluster special use of bearing cluster service control messages, except that the transmission channel that is mapped to above-mentioned cluster special use, can also be according to purposes, and the difference of the RRC state of cluster user terminal, can also be mapped to FACH (forward access channel) by MAC-c/sh, on the RACH (random access information), on MAD-d mapping DCH transmission channels such as (dedicated channels), these transmission channels are identical with the characteristic of the transmission channel of the same names of TD-SCDMA public mobile communication business procedure use.
Aspect the wireless network control face protocol processes of Uu interface, it is the RRC agreement, a group service that can be a group in RNC is set up a chain of command management entity, is used for handling the protocol-dependent group service control messages of whole RRC of this group service among this RNC.Moreover, this chain of command management entity also be responsible for to receive and transmits the descending group service control messages from the IuTS interface, and all the up group service control messages from the cluster user terminal of this group service of this RNC management that will receive send to the cluster core net by the IuTS interface.
Subscriber terminal equipment in the native system is supported public mobile communication business and group service, is referred to as colony terminal.Just because of the said system method for designing, comprise protocol stack design and system's implementation method, all adopt the mode that increases, on the basis of TD-SCDMA public access mobile radio, introduce the cluster core net, the system that makes can carry out group service not influencing under the situation that the public mobile communication business carries out, and promptly system supports public mobile communication business and group service simultaneously.Therefore, the influence that group service can not be subjected to SOT state of termination is initiated and responded to colony terminal, be that colony terminal can initiate to set up the special-purpose sharing wireless channel of cluster and use the special-purpose sharing wireless channel of cluster in free position, colony terminal can respond group service and use the special-purpose sharing wireless channel of cluster under free position.In native system, the state of terminal mainly refers to the RRC state, comprises Idle (free time) state, CELL_PCH (cell paging) state, URA_PACH (paging of UTRAN Acceditation Area) state, CELL_FACH (cell forward access) state and CELL_DCH (cell-specific) state.But,, can support public mobile communication business and group service simultaneously according to terminal specific implementation and ability; Perhaps do not support public mobile communication business and group service simultaneously, promptly select suitable R RC state to support group service.
In native system, colony terminal comprises domestic consumer's colony terminal and has the dispatching desk and the turnkey console of special authority that colony terminal can be divided into portable terminal and fixed terminal again.The content that shared TD-SCDMA wireless access network in the said system is relevant is applicable to that domestic consumer's colony terminal and dispatching desk carry out group service by wireless signal.
Be illustrated in figure 5 as another implementation of the present invention, in this scheme, TCS in the TD-SCDMA trunked communication system core net is connected with SGSN in the TD-SCDMA public access mobile radio core net, to provide the portable terminal mobile management relevant information, the information interaction function that safety management is relevant, this connecting interface can provide the information interaction carrying based on Ethernet and Internet agreement.
Be illustrated in figure 6 as another implementation of the present invention, in this scheme, the TD-SCDMA trunked communication system does not have special-purpose core net, and be based on SGSN in the PS territory in the TD-SCDMA public access mobile radio core net, the network element of group service will be realized, comprise the scheduling controlling server (TCS) of handling dispatching services, be used to store and the scheduling controlling register (TCR) of managing relevant group and user profile, be used to insert the dispatching desk acting server (DAS) of all kinds dispatching desk, and operator's management use, be used for input, safeguard turnkey console (Operator) about group and user profile, whole as a kind of group service functional node, be called the group service node, be connected with SGSN, this connecting interface can provide the information interaction carrying based on Ethernet and Internet agreement.Accordingly, can on the IuPS interface, increase repertoire and the characteristic that the IuTS interface is supported; In SGNS, need the group service support function, comprise the traffic differentiation function, distinguishing group service and common PS with professional, and provide the relevant control of group service and business datum the IuPS interface and and TD-SCDMA cluster communication service node between interface between forwarding capability.
Be illustrated in figure 7 as another implementation of the present invention, in this scheme, the TD-SCDMA trunked communication system does not have special-purpose core net, and be based on GGSN in the PS territory in the TD-SCDMA public access mobile radio core net, will be by scheduling controlling server (TCS), scheduling controlling register (TCR), dispatching desk acting server (DAS) and turnkey console network elements such as (Operator), group service functional node as a kind of integral body is called the group service node, is connected with GGSN.Accordingly, can on the IuPS interface, increase repertoire and the characteristic that the IuTS interface is supported; The relevant tenability of expansion sets group business on the interface between SGSN and the GGSN; In SGSN, need to increase the group service support function, comprise the traffic differentiation function, distinguishing group service and common PS with professional, and provide the relevant control of group service and business datum the IuPS interface and and GGSN between interface between forwarding capability; In GGSN, need to increase the group service support function, comprise the traffic differentiation function, distinguishing group service and common PS with professional, and provide the relevant control of group service and business datum and SGSN and TD-SCDMA cluster communication service node between interface between forwarding capability.
Wireless cluster communication system of the present invention and its implementation also go for the wireless cluster communication system based on Wideband Code Division Multiple Access (WCDMA) access (WCDMA).Compare with above-mentioned wireless cluster communication system, can adopt identical network configuration, comprise core net and wireless access network based on the wireless cluster communication system of WCDMA based on TD-SCDMA; In wireless access network, can adopt identical protocol stack, comprise chain of command and user face protocol stack; Identical group service way to manage be can adopt, resource allocation and Business Processing comprised; Different is, on concrete Physical Shared Channel structure, employing be the physical channel structure of WCDMA technology.
Claims (16)
1, a kind of wireless cluster communication system based on TD-SCDMA technology comprises:
TD-SCDMA public access mobile radio core net comprises Mobile Switching Center Server/circuit domain medium webmaster and service universal grouping wireless business supporting node;
Wireless access network comprises at least one radio network controller and at least one Node B;
It is characterized in that described system also comprises a cluster core net, be connected with described wireless access network that comprise a cluster core net node that links to each other with wireless access network, this cluster core net node comprises by the IuTS interface:
The scheduling controlling server is connected with described radio network controller by the IuTS interface, is used to handle dispatching services, finishes to comprise subscription authentication, sets up, safeguards and discharge various trunked call services, carries out the right of speech scheduling;
The scheduling controlling register, be used for storage and management group and user profile, advance to be connected with described scheduling controlling server, interface therebetween is used to carry out that the providing of calling subscriber's authentication and authentication, group calling attribute information, user's mobility information is mutual, group and user's information inquiry;
The dispatching desk acting server, be used to insert all kinds dispatching desk, be connected with described scheduling controlling server, interface therebetween is used to carry out that business information between dispatching desk and described dispatching desk acting server is mutual, the right of speech scheduling control information is mutual, be connected with the scheduling controlling register simultaneously, interface therebetween is used to carry out authentication and authentication, dispatching desk and turnkey console management group and group member's information of dispatching desk and described turnkey console;
Turnkey console, offering operator's management uses to be used for input, to safeguard group and user profile, be connected the interactive information when interface therebetween is used for transmission network operator and administers and maintains the group of described scheduling controlling register and user profile by client management system with described scheduling controlling register.
2, the system as claimed in claim 1 is characterized in that, described system further comprises:
At least one end user device, by with described Node B between the Uu interface be connected with wireless access network, and then be connected with described cluster core net, in order under free position, to initiate and the response group service by the IuTS interface.
3, the system as claimed in claim 1 is characterized in that, described wireless access network, have with the TD-SCDMA public access mobile radio in the identical network configuration of universal land radio access web,
By radio network controller and IuCS interface between described Mobile Switching Center Server/circuit domain medium webmaster and the IuPS interface between radio network controller and the described service universal grouping wireless business supporting node wherein, carry out the public mobile communication service interaction of described wireless cluster communication system;
IuTS interface by between radio network controller and the described scheduling controlling server carries out with the group service of described wireless cluster communication system mutual with the form of grouped data;
Wherein, described IuTS interface, be interface or the network of supporting packet data transmission, be used to transmit the group service control command that described cluster core net is set up or revised or delete to the group service of described wireless access network initiation, carrying forward direction and/or reverse group service data, interactive information between carrying core net and the trunking terminal user equipment, and a cluster group user in the group service shares a communication path on this IuTS interface.
4, the system as claimed in claim 1 is characterized in that, described wireless access network,
Support the management and the implementation method of TD-SCDMA public mobile communication business;
Aspect the group service support, carry out the group service management in the mode of group service, interface resource and channel resource by the cell allocation group service, cluster control messages that will receive from the sub-district and business datum send to the cluster core net in the mode of group service, and the control messages that will receive from the cluster core net and business datum are duplicated in the mode of group service and be distributed to the sub-district.
5, system as claimed in claim 1 or 2, it is characterized in that, the Radio interface protocols stack of Uu interface between described end user device and the described wireless access network, the Radio interface protocols stack of compatible TD-SCDMA public access mobile radio, and comprise logic channel, transmission channel and the physical channel of group service special use and group service dedicated signaling process and message;
Wherein, for RRC, RLC in the wireless access layer protocol on the described Uu interface, MAC, PHY agreement,
In the PHY physical layer protocol, comprise a up shared physical channel and a Physical Downlink Shared Channel, be used to carry the trunking signal message and the group service data of a group;
In MAC agreement and rlc protocol, comprise the uplink and downlink transmission channel and the logic channel of corresponding cluster special use;
In MAC agreement and PHY agreement, comprise of the mapping of cluster dedicated logical channel to cluster dedicated transmission channel, cluster dedicated transmission channel to the cluster DPCH;
In the RRC agreement, comprise the signaling procedure of group service special use, in order to initial foundation or the configuration of cluster Dedicated Traffic Channel or called paging or the right of speech management of group service or the release of group service of group service of supporting group service.
6, the system as claimed in claim 1, it is characterized in that, described Node B, undertaken alternately by Iub interface and a described Wi-Fi controller, in order to carry out public mobile communication business and cluster communication service, wherein said Iub interface, adopt the identical protocol stack interface of Iub interface with the wireless access network internal of described TD-SCDMA public access mobile radio, and based on this, further
In the NBAP agreement of the chain of command of wireless network layer, comprise cluster Physical Shared Channel and cluster are shared the support that transmission channel ground is set up, revised, deletes;
In the FP of user's face agreement, comprise that cluster shares transmission channel;
In a sub-district, this Iub interface is included as the chain of command connection of sharing that a group sets up, be used for the control messages of bearing cluster service, and user's face connects, be used for the bearing cluster service data, further, if group service relates to a plurality of sub-districts in a Node B, then a described chain of command connects and can be shared by described a plurality of sub-districts.
7, system as claimed in claim 2 is characterized in that,
Described end user device comprises domestic consumer's colony terminal and the dispatching desk and the turnkey console that have specified permission, and wherein, described colony terminal comprises portable terminal and fixed terminal;
Described end user device, free position when under free position, initiating and responding group service and/or supporting the public mobile communication business, be meant the wireless network control face protocol status of terminal, i.e. one of them state of idle condition, cell paging state, universal land radio access web Acceditation Area paging state, cell forward access state and cell-specific state.
8, the system as claimed in claim 1, it is characterized in that, different cluster core net nodes in the described cluster core net, by the interface between interface between the scheduling controlling server each other and/or the scheduling controlling register each other, the group service of cluster core net node is striden in realization, and described interface is based on Ethernet and the Internet agreement provides information interaction to carry.
9, the system as claimed in claim 1 is characterized in that, described system further comprises:
At the service universal grouping wireless business supporting node of described TD-SCDMA public access mobile radio core net and the interface between the scheduling controlling server in the described cluster core net, it provides the information interaction carrying based on Ethernet and Internet agreement, in order to the relevant information of portable terminal mobile management, the information interaction that safety management is relevant to be provided.
10, a kind of wireless cluster communication system based on TD-SCDMA technology comprises:
TD-SCDMA public access mobile radio core net comprises Mobile Switching Center Server/circuit domain medium webmaster, service universal grouping wireless business supporting node, ggsn;
Wireless access network comprises at least one radio network controller and at least one Node B;
It is characterized in that described TD-SCDMA public access mobile radio core net also comprises a group service node, this group service node comprises:
The scheduling controlling server, be connected with described service universal grouping wireless business supporting node, or be connected with described ggsn, connecting interface wherein provides the information interaction carrying based on Ethernet and Internet agreement, be used to handle dispatching services, finish and comprise subscription authentication, set up, safeguard and discharge various trunked call services, carry out the right of speech scheduling;
The scheduling controlling register, be used for storage and management group and user profile, be connected with described scheduling controlling server, interface therebetween is used to carry out that the providing of calling subscriber's authentication and authentication, group calling attribute information, user's mobility information is mutual, group and user's information inquiry;
The dispatching desk acting server, be used to insert all kinds dispatching desk, be connected with described scheduling controlling server, interface therebetween is used to carry out that business information between dispatching desk and described dispatching desk acting server is mutual, the right of speech scheduling control information is mutual, be connected with the scheduling controlling register simultaneously, interface therebetween is used to carry out authentication and authentication, dispatching desk and turnkey console management group and group member's information of dispatching desk and described turnkey console;
Turnkey console, offering operator's management uses to be used for input, to safeguard group and user profile, be connected the interactive information when interface therebetween is used for transmission network operator and administers and maintains the group of described scheduling controlling register and user profile by client management system with described scheduling controlling register.
11, system as claimed in claim 10 is characterized in that, described system further comprises:
At least one end user device, by with described Node B between the Uu interface be connected with wireless access network, and then by IuPS interface, IuCS interface and comprise that the described TD-SCDMA public access mobile radio core net of group service node is connected, in order to initiation under free position and response group service, and/or in order to support the public mobile communication business.
12, system as claimed in claim 10, it is characterized in that, described wireless access network, have with the TD-SCDMA public access mobile radio in the identical network configuration of universal land radio access web, by wherein radio network controller and IuCS interface between described Mobile Switching Center Server/circuit domain medium webmaster and the IuPS interface between radio network controller and the described service universal grouping wireless business supporting node, the public mobile communication service interaction and the group service that carry out described wireless cluster communication system are mutual.
13, as claim 10,11 or 12 described systems, it is characterized in that,
The Radio interface protocols stack of Uu interface between described end user device and the described wireless access network, the Radio interface protocols stack of compatible TD-SCDMA public access mobile radio, and comprise logic channel, transmission channel and the physical channel of group service special use and group service dedicated signaling process and message;
Described Node B, undertaken alternately by Iub interface and a described Wi-Fi controller, in order to carry out public mobile communication business and cluster communication service, wherein said Iub interface, adopt the identical protocol stack interface of Iub interface with the wireless access network internal of described TD-SCDMA public access mobile radio, and based on this, further, comprise cluster Physical Shared Channel and cluster are shared the foundation of transmission channel ground, revise, the support of deletion, comprise that cluster shares transmission channel, be included as that a chain of command of sharing that a group sets up connects and user's face connects;
Described end user device comprises domestic consumer's colony terminal and the dispatching desk and the turnkey console that have specified permission, and wherein, described colony terminal comprises portable terminal and fixed terminal;
Described end user device, free position when under free position, initiating and responding group service and/or supporting the public mobile communication business, be meant the wireless network control face protocol status of terminal, i.e. one of them state of idle condition, cell paging state, universal land radio access web Acceditation Area paging state, cell forward access state and cell-specific state.
14, system as claimed in claim 10, it is characterized in that, described service universal grouping wireless business supporting node, have the traffic differentiation function of distinguishing group service and ordinary groups territory business, provide relevant control of group service and business datum the IuPS interface and and the group service node between interface between forwarding;
Wherein, described IuPS interface, comprise repertoire and characteristic that the IuTS interface is supported, be used to transmit the group service control command that described cluster core net is set up or revised or delete to the group service of described wireless access network initiation, carrying forward direction and/or reverse group service data, the interactive information between carrying core net and the trunking terminal user equipment.
15, system as claimed in claim 10, it is characterized in that, described ggsn, comprise in order to distinguishing the traffic differentiation function of group service and ordinary packet territory business, and provide the relevant control of group service and business datum and the interface of service universal grouping wireless business supporting node and and the group service node between interface between forwarding.
16, system as claimed in claim 15 is characterized in that, the interface between described service universal grouping wireless business supporting node and the described ggsn expands the tenability that has group service relevant.
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