CN103391516A

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Info

Publication number: CN103391516A
Application number: CN2012101465670A
Authority: CN
Inventors: 尚华; 许多; 宁静
Original assignee: ZTE Corp
Current assignee: Beijing Zte Gundam Communication Technology Co ltd
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2013-11-13
Anticipated expiration: 2032-05-11
Also published as: CN103391516B

Abstract

本发明公开了长期演进架构下数字集群系统组呼资源分配方法及设备，该方法包括如下步骤：A、演进基站eNB与多小区多播协同实体MCE协商演进多媒体广播组播业务eMBMS无线资源配置，根据MCE的指示消息建立与演进多媒体广播组播网关eMBMS-GW的传输承载，所述指示消息包含eMBMS配置参数；B、eNB根据所述配置参数配置所述eMBMS的传输资源配对。通过本发明，在长期演进LTE架构中，eNB、MCE和MME协商eMBMS资源配置，实现在多种情况下的无线资源分配，减小宽带数字集群系统组呼业务发起的接续时延，提高业务连续性。

The present invention discloses a method and equipment for group call resource allocation of a digital trunking system under a long-term evolution framework. The method includes the following steps: A. An evolved base station eNB negotiates with a multi-cell multicast coordination entity MCE to configure an evolved multimedia broadcast multicast service eMBMS wireless resource, Establish a transmission bearer with the evolved multimedia broadcast multicast gateway eMBMS-GW according to the instruction message of the MCE, the instruction message includes eMBMS configuration parameters; B. The eNB configures the eMBMS transmission resource pairing according to the configuration parameters. Through the present invention, in the long-term evolution LTE architecture, eNB, MCE and MME negotiate eMBMS resource configuration, realize wireless resource allocation in various situations, reduce connection delay of broadband digital trunking system group call service initiation, and improve service continuity sex.

Description

Digital cluster system group call resource distribution method and equipment under long-term evolution structure

Technical field

The present invention relates to moving communicating field, relate in particular to digital cluster system group call resource distribution method and equipment under long-term evolution structure.

Background technology

LTE(Long Term Evolution, Long Term Evolution) be 3GPP(Third Generation Partnership Project, 3-G (Generation Three mobile communication system) collaborative project) the mobile broadband network standard of future generation of definition.Adopt the OFDM technology also to introduce the many outputs of the many outputs of MIMO() etc. technology; Simultaneously can support the 1.25-20MHz bandwidth, greatly improve peak data rate and power system capacity, the network configuration of flattening has strengthened scheduling and Radio Resource control efficiency, has shortened the time delay that continues.

The MBMS(multimedia broadcast-multicast service) business is supported at No.3 generation mobile communication system, and framework is the eMBMS(evolutionary multimedia broadcast multicast business in the 4th generation mobile communication LTE system) business regarded as the business that application scenarios is arranged very much by industry.

Trunked communication system develops in order to meet industry user's command scheduling demand, towards the private wireless communication system of specific industry application, but wireless user's sharing wireless channel in system, the application take command scheduling as main body, be a kind of multipurpose, dynamical wireless communication system, and possess the characteristic of distinctive group calling function and short calling.

Trunked communication system in a government office, the market that has a wide range of applications, the field such as public safety, emergency communication, electric power, civil aviaton, petrochemical industry and army.Along with expanding economy, taxi, logistics, estate management and factory's manufacturing industry also more and more need trunking communication.

Trunked communication system technically also will be broadband to the variation of system IPization, business, data, the future development of terminal multimode.Therefore, need trunked communication system to have larger channel capacity, the higher availability of frequency spectrum, better transmission performance, adopt low-cost, scalable, configurable IP full wireless multi-media network framework, and can realize smooth evolution.In conjunction with the service feature of above-mentioned trunked communication system, arise at the historic moment based on the solution that the LTE wideband digital group service of eMBMS is applied, as shown in Figure 1, eMBMS building-block of logic in the 4th generation mobile communication LET system.Make trunking communication be dissolved in the public's cellular mobile system as a kind of business.

Summary of the invention

The purpose of this invention is to provide digital cluster system group call resource distribution method and equipment under a kind of long-term evolution structure, make the UE(User Equipment subscriber equipment in the LTE network), eNB(eNodeB, evolution base station), MCE(Multi-Cell/Multicast Coordination Entity, many cell/multicasts coordinated entity), MME (Mobility Management Element, mobile management entity) mutual cooperation, distribute and manage the LTE system eMBMS Radio Resource that carries wideband digital cluster multi call business.

The objective of the invention is to be achieved through the following technical solutions, the present invention has supplied digital cluster system group call resource distribution method under a kind of long-term evolution structure, comprise: A, evolution base station eNB are according to the Indication message foundation of many cell multicasts coordinated entity MCE and the transmission bearer of evolutionary multimedia broadcast multicast gateway eMBMS-GW, and described Indication message comprises evolutionary multimedia broadcast multicast business eMBMS configuration parameter; B, eNB, according to described configuration parameter, carry out the transfer resource pairing of eMBMS by described transmission bearer.

The present invention also provides the evolution base station eNB under a kind of long-term evolution structure, comprising:

Transmission bearer is set up module, is used for according to the Indication message foundation of many cell multicasts coordinated entity MCE and the transmission bearer of evolutionary multimedia broadcast multicast gateway eMBMS-GW, and described Indication message comprises evolutionary multimedia broadcast multicast business eMBMS configuration parameter;

The allocation of radio resources module, be used for according to described configuration parameter, carries out the transfer resource pairing of eMBMS by described transmission bearer.

By the present invention, in the LTE framework, eNB, MCE and MME consult the eMBMS resource distribution, realize the allocation of radio resources in multiple situation, reduce the time delay that continues that wideband digital group system group-calling service is initiated, and improve business continuance.

Description of drawings

Fig. 1 is eMBMS building-block of logic in the 4th generation mobile communication LET system;

Fig. 2 is the flow chart of digital cluster system group call resource distribution method under a kind of long-term evolution structure in the embodiment of the present invention;

Fig. 3 is the flow chart of cell-level digital cluster system group call resource distribution method under the medium-term and long-term evolution architecture of the embodiment of the present invention;

Fig. 4 is the flow chart of digital cluster system group call resource distribution method during non-right of speech subscriber switch machine under the medium-term and long-term evolution architecture of the embodiment of the present invention;

Fig. 5 is the flow chart of non-right of speech user's switching word group system group call resource distribution method under the medium-term and long-term evolution architecture of the embodiment of the present invention;

Fig. 6 is the flow chart of digital cluster system group call resource distribution method under the non-switch instances of right of speech user under the medium-term and long-term evolution architecture of the embodiment of the present invention;

Fig. 7 is the structure chart of digital cluster system group call resource distribution method under right of speech user switch instances under the medium-term and long-term evolution architecture of the embodiment of the present invention;

Fig. 8 is the structure chart of digital cluster system group call resource distributing equipment under a kind of long-term evolution structure in the embodiment of the present invention;

Fig. 9 is the structure chart of digital cluster system group call resource distributing equipment under another kind of long-term evolution structure in the embodiment of the present invention.

Embodiment

First embodiment of the invention provides digital cluster system group call resource distribution method under a kind of long-term evolution structure, the technology technology that the method will solve is mutually to cooperate by the UE in the LTE network, eNB, MCE and MME, LTE system eMBMS Radio Resource to carrying wideband digital cluster multi call business distributes and manages, as shown in Figure 2, specifically comprise the following steps:

Step S101, evolution base station eNB is according to the Indication message foundation of many cell multicasts coordinated entity MCE and the transmission bearer of evolutionary multimedia broadcast multicast gateway eMBMS-GW, and described Indication message comprises evolutionary multimedia broadcast multicast business eMBMS configuration parameter.

Step S102, eNB, according to described configuration parameter, carry out the transfer resource pairing of eMBMS by described transmission bearer.

Second embodiment of the invention provides digital cluster system group call resource distribution method under a kind of long-term evolution structure, the method is applied in LET cell-level digital cluster system group calling allocation of radio resources, in the present embodiment, when cell initial was set up, eNB set up and is connected with the logic of adjacent network element.As shown in Figure 3, specifically comprise the following steps:

Whether step S201, support eMBMS by back-end data library inquiry current area, if current area is not supported eMBMS, termination process.

Step S202, if current area is supported eMBMS, eNB is according to the Indication message foundation of MCE and the transmission bearer of eMBMS-GW, described Indication message comprises evolutionary multimedia broadcast multicast business eMBMS configuration parameter.

Step S203, eNB is according to the transfer resource pairing of the described eMBMS of described configuration parameter configuration;

After the transfer resource successful matching, by described transmission bearer, carry out resource transmission.

Third embodiment of the invention provides digital cluster system group call resource distribution method under a kind of long-term evolution structure, while being applied in LTE non-right of speech user UE switching on and shutting down in digital cluster system group calling allocation of radio resources, in the present embodiment, start shooting resident current area and initiate start-up logging of user, register at MME and colony dispatching administrative center simultaneously, as shown in Figure 4, specifically comprise the following steps:

The Digital Clustering business information that MCE corresponding to step S301:UE place current area issues (by the M3 interface) current UE according to MME is inquired about described current area and whether is supported eMBMS, if carrying the eMBMS Radio Resource of the Digital Clustering group calling of described UE needs sets up in current area, perform step S305, wherein said Digital Clustering business information comprises MBSFN Area ID and session session number etc.

Step S302, if the eMBMS Radio Resource is not set up in current area, MCE carries out admission judgment according to cluster multi call traffic performance parameter.

Step S303, after the admission judgment success, by M2 interface notice current area eNB, described current area eNB is current UE distributing user context.

Step S304, MCE sets up transmission bearer by M1 interface indication current area eNB and eMBMS-GW.

Step S305, current area eNB is according to the configuration parameter configuration eMBMS Radio Resource of MCE indication, and described user's context and described eMBMS-GW that eNB is described UE according to described configuration parameter carry out the resource pairing, wherein, described cluster multi call traffic performance parameter comprises Qos, the parameters such as speed.

Further, after the allocation of radio resources success, eNB indication UE carries out the data word cluster and monitors, and when in the residential quarter under its scope, UE no longer carries out the Digital Clustering group calling, Radio Resource is discharged.Following rapid:

Step S306, after the resource pairing is completed, the described UE of eNB generation system broadcasting indication monitors at the newly-built enterprising line number word of EMBMS Radio Resource cluster.

Step S307:MCE sends response message by the M3 interface to MME, carries out the information updating of user class.

Whether step S308: current area eNB still has UE to proceed the Digital Clustering group calling according to its lower residential quarter of certain cycle real-time listening, if while not having, after postponing one specific configurable period, corresponding EMBMS Radio Resource is discharged, and with MCE, carry out information updating.

Fourth embodiment of the invention provides digital cluster system group call resource distribution method under a kind of long-term evolution structure, allocation of radio resources while being applied in LTE non-right of speech user UE switching, wherein cell-of-origin and Target cell are all supported active user's Digital Clustering group-calling service, UE sends based on the measurement report that switches to Serving cell, and the Serving cell judgement enters the switching set-up procedure.As shown in Figure 5, specifically comprise the following steps:

Step S401, place, cell-of-origin eNB inquiry local data base or to cell-of-origin corresponding MCE query aim residential quarter whether support eMBMS.

Step S402,, if described Target cell is supported eMBMS, send handover preparation request message, the Digital Clustering group-calling service information of carrying described UE in described handover preparation request message to described Target cell; Described Digital Clustering group-calling service information comprises MBSFNArea ID and session session number.

Step S403, described Target cell eNB switches required admission judgment according to described Digital Clustering group-calling service information.

Step S404, after the admission judgment success, described Target cell eNB sends switching to described cell-of-origin and prepares acknowledge message, and described switching preparation acknowledge message is carried the system broadcast information about described Target cell eMBMS configuration parameter.

The residential quarter switching is carried out by the described UE of instruction indication that eats dishes without rice or wine in described cell-of-origin.

Step S405, described Target cell eNB UE distributing user according to being designated as of Target cell MCE context.

Step S406, described Target cell eNB is according to the Indication message foundation of described Target cell MCE and the transmission bearer of Target cell eMBMS-GW.

Step S407: described Target cell eNB prepares user's context and described eMBMS-GW that the described Target cell eMBMS configuration parameter in the described system broadcast information that carries in acknowledge message is described UE and carries out the resource pairing according to described switching.

Step S402-S404 is not replaced by step S411-S414 if described Target cell is not supported eMBMS.Concrete steps are as follows:

Step S411,, if described Target cell is not supported eMBMS, send handover preparation request message, the Digital Clustering group-calling service information of carrying described UE in described handover preparation request message to mobile management entity MME.

Step S412, described MME breaks described handover preparation request message corresponding to general service and Digital Clustering business, and sends respectively described Target cell eNB and described Target cell MCE.

Step S413, described Target cell eNB carries out admission judgment to described general service, and described Target cell MCE carries out admission judgment to described Digital Clustering business respectively, and described Digital Clustering business admission judges unsuccessfully, only carries out general service; Or,

The equal admission judgment failure of general service and Digital Clustering business, termination process.

Step S414, after described Digital Clustering business admission judges successfully, after described MME integrates the feedback of described Target cell eNB and Target cell MCE, send switching to described cell-of-origin and prepare acknowledge message, described switching preparation acknowledge message is carried the system broadcast information about described Target cell eMBMS configuration parameter; The residential quarter switching is carried out by the described UE of instruction indication that eats dishes without rice or wine in described cell-of-origin.

Fifth embodiment of the invention provides digital cluster system group call resource distribution method under a kind of long-term evolution structure, and allocation of radio resources while being applied in LTE the non-switching of right of speech user UE, as shown in Figure 6, specifically comprise the steps:

Step S501, MME are received as UE allocation set group communication right of speech service request, and notice place current area eNB.

Step S502, current area eNB are that the Digital Clustering group-calling service parameter that described UE sets up in the user's context process is carried out admission judgment to digital group service according to mobile management entity MME, if connect red receiving, judge unsuccessfully, and the Digital Clustering operation flow stops.

Step S503, if the admission judgment success, eNB is current UE distributing user context.

Step S504, current area eNB sets up the transmission bearer with eMBMS-GW.

Step S505, described user's context and described eMBMS-GW that described current area eNB is described UE by the instruction of eating dishes without rice or wine carry out the resource pairing.

Further, after allocation of radio resources was completed, current area eNB pressed some cycles inquiry active user's right of speech state; If the active user discharges right of speech, current area eNB discharges Radio Resource by the described UE of instruction indication that eats dishes without rice or wine.

Sixth embodiment of the invention provides digital cluster system group call resource distribution method under a kind of long-term evolution structure, allocation of radio resources while being applied in LTE right of speech user UE switching, current UE obtained language for the time being the Digital Clustering group-calling service be in the survival stage, described UE sends based on the measurement report that switches to Serving cell, and set-up procedure is switched in the Serving cell judgement.In the present embodiment, the active user's cluster multi call right of speech user unicast service before Target cell is sent out according to cell-of-origin switches admittance.As shown in Figure 7, specifically comprise the steps:

Step S601, the Target cell eNB of described UE carries out admission judgment according to the Digital Clustering group-calling service parameter of the described UE that cell-of-origin sends to described Digital Clustering business, if described Digital Clustering business admission judges unsuccessfully, only carries out general service; Or,

Step S602, after the admission judgment success, send switching to described cell-of-origin and prepare response message.

Step S603, the residential quarter switching is carried out by the described UE of instruction indication that eats dishes without rice or wine in described cell-of-origin.

Step S604, described Target cell eNB is according to the Indication message foundation of described Target cell MCE and the transmission bearer of Target cell eMBMS-GW.

Step S605, user's context and described Target cell eMBMS-GW that described Target cell eNB is described UE according to described Digital Clustering group-calling service parameter carry out the resource pairing.

Seventh embodiment of the invention provides digital cluster system group call resource distributing equipment under a kind of long-term evolution structure, and this equipment is evolution base station eNB, as shown in Figure 8, comprising:

Transmission bearer is set upmodule 701, is used for according to the Indication message foundation of many cell multicasts coordinated entity MCE and the transmission bearer of evolutionary multimedia broadcast multicast gateway eMBMS-GW, and described Indication message comprises evolutionary multimedia broadcast multicast business eMBMS configuration parameter;

Allocation ofradio resources module 702, be used for according to described configuration parameter, carries out the transfer resource pairing of eMBMS by described transmission bearer.

Also comprise:

Enquiry module 703, be used for whether supporting eMBMS by back-end data library inquiry current area,, if current area is supported eMBMS, calls described transmission and carry and set up module;

If current area is not supported eMBMS, termination process.

Eighth embodiment of the invention provides digital cluster system group call resource distributing equipment under a kind of long-term evolution structure, and this equipment is evolution base station eNB, as shown in Figure 9, comprising:

Transmission bearer is set upmodule 801, is used for according to the Indication message foundation of many cell multicasts coordinated entity MCE and the transmission bearer of evolutionary multimedia broadcast multicast gateway eMBMS-GW, and described Indication message comprises evolutionary multimedia broadcast multicast business eMBMS configuration parameter;

Allocation ofradio resources module 802, be used for according to described configuration parameter, carries out the transfer resource pairing of eMBMS by described transmission bearer;

Enquiry module 803, be used for the inquiry local data base or to cell-of-origin corresponding MCE query aim residential quarter whether support eMBMS;

Handover preparation requestmessage transmission module 804, be used for sending handover preparation request message to described Target cell when described Target cell is supported eMBMS; Or,, if described Target cell is not supported eMBMS, to mobile management entity MME, send handover preparation request message, the Digital Clustering group-calling service information of carrying described UE in described handover preparation request message;

Admission judgment module 805, be used for switching required admission judgment according to described Digital Clustering group-calling service information;

Acknowledgemessage sending module 806 is prepared in switching, after the admission judgment success, sends switching to described cell-of-origin and prepares acknowledge message, and described switching preparation acknowledge message is carried the system broadcast information about described Target cell eMBMS configuration parameter;

Context distribution module 807, be used for UE distributing user context according to being designated as of Target cell MCE.

By the embodiment of the present invention, in Long Term Evolution LTE framework, eNB, MCE and MME consult the eMBMS resource distribution, realize the allocation of radio resources in multiple situation, reduce the time delay that continues that wideband digital group system group-calling service is initiated, and improve business continuance.

Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.