CN102215524A

CN102215524A - Machine type communication (MTC) equipment offline state detection and notification method and system

Info

Publication number: CN102215524A
Application number: CN2010101410664A
Authority: CN
Inventors: 张英; 李凤; 房家奕
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2010-04-02
Filing date: 2010-04-02
Publication date: 2011-10-12
Anticipated expiration: 2030-04-02
Also published as: CN102215524B

Abstract

The embodiment of the invention discloses a machine type communication (MTC) equipment offline state detection and notification method, which comprises the following steps that: a core network configures the maximum offline state detection time need MAX_T_Detect of MTC equipment for a radio access network (RAN); a base station in the RAN performs offline state detection on the MTC equipment, and when discovering that the MTC equipment is in an offline state, reports the cell offline state of the MTC equipment to a radio network controller (RNC); and the RNC judges whether the MTC equipment is in the offline state or not according to preset rules, and when judging the MTC equipment is in the offline state, reports the offline state of the MTC equipment to the core network. By the scheme provided by the invention, the base station finishes an offline state detection process by performing air-interface-physical-layer-based signaling interaction with the MTC equipment; and under the condition that the MTC equipment is online, only an air interface physical layer process is related, and high signaling interaction is unrelated. Compared with other ways for the offline state detection, the invention can effectively reduce high signaling overhead and related network elements.

Description

The method and system that the MTC equipment off-line detects and notifies

Technical field

The present invention relates to digital communicating field, particularly, the present invention relates to the method and system that a kind of MTC equipment off-line detects and notifies.

Background technology

At 3-G (Generation Three mobile communication system) UMTS (Universal Mobile TelecommunicationsSystem, universal mobile telecommunications system) with and long evolving system in need to support MTC (machine type communication, Machine Type Communications) function.M2M (Machine-to-machine, machinery compartment) communication is as a kind of novel communication theory, its objective is that the communication technology with number of different types organically combines, as: machine is to machine communication, machine control communication, man-machine interaction communication, mobile interconnected communication, thus the development of promotion social production and life style.The business of estimating following Human To Human's communication may only account for 1/3 of whole terminal market, and the communication of bigger quantity is the M2M communication service.

Current mobile communications network is at interpersonal design of communication, as determining etc. of: network capacity.If wish to utilize characteristics that mobile communications network supports that M2M communication just need communicate by letter according to M2M that the mechanism of mobile communication system is optimized, so that can realize M2M communication better in that traditional person to person's communication is not subjected to or is subjected under the less situation about influencing.

List some characteristics that the current MTC communication of recognizing may exist below, the MTC terminal of a reality can have above-mentioned one or more characteristics:

-MTC terminal has Hypomobility;

The time that-MTC terminal and network side carry out transfer of data is controlled; Be that the MTC terminal can only insert in the time period of network appointment.

The transfer of data that-MTC network and network side carry out is less demanding to real-time to transfer of data, has the time tolerance that is:;

-MTC terminal energy constraint requires extremely low power consumption;

Only carry out the message transmission of small data quantity between-MTC terminal and the network side;

-MTC terminal can be that unit manages with the group;

-need monitor the state of MTC terminal, be in off-line state if find certain MTC terminal, then need to notify corresponding network element device; Or the like.

For top need detecting and the characteristic of off-line notice of addressing to the MTC SOT state of termination, main application scenarios is: and H2H (Human to Human, the Human To Human) communication is different, because MTC equipment may be under the long unmanned monitoring situation, in the time can't continuing to communicate by letter between equipment and the network, for example because the link-quality variation, because unexpected or artificial equipment damage etc., network needs the state of this equipment of detection that system can be initiatively and reports relevant network element entity, so that can be taked corresponding counter-measure.This characteristic has defined " maximum off-line indication detection time ", promptly take place to connect the time that is detected to this connections interruption of interrupting from reality, be called MAX_T_Detect, the requirement system can (based on the MTC CAMEL-Subscription-Information) detect MTC equipment off-line incident in this time period, the length of this time may be not wait by 1 hour in 1 minute.

In the present UMTS system, at the strategy of the state-detection and the notice of terminal equipment, roughly situation is as follows:

For the terminal that is in connection mode, there are following several situations:

1) terminal is in the CELL_DCH state

Under this state, require that terminal and network must keep eating dishes without rice or wine synchronously, therefore existing corresponding mechanism makes network can detect the quality of uplink quality, such as following DPCH (Dedicated Physical Channel having disposed, DPCH) or under the situation of up non-scheduling resource (non-scheduling resource), base station equipment can directly be judged link-quality based on the reception condition of upstream data; Do not exist under the situation of following DPCH or up non-scheduling, the base station need go maintenance link synchronous by periodic scheduling.Therefore, under the CELL_DCH state, network can in time be understood the state information of terminal, uses existing technology can guarantee " to the state-detection of terminal equipment ".

2) terminal is in the CELL_FACH state

Under this state, terminal equipment is not assigned with special-purpose physical resource, do not having under the situation of transfer of data, terminal need not to keep uplink synchronous, terminal need be monitored descending FACH channel or need to monitor the HS-SCCH channel in HSPA+, sets up the transmitting-receiving that process is carried out data so that in time trigger uplink synchronous.Under this state, periodic cell update mechanism is arranged, by the cycle of network configuration terminal initiation cell update, so that network is understood the state of terminal.Because cell updating course relates to the transmission of RRC message, be provided with shortlyer at MAX_T_Detect, under the situation such as a few minutes, frequent initiation cell updating course can increase the load of eating dishes without rice or wine, and efficient is not high.

3) terminal is in CELL_PCH or URA_PCH state

Under this state, terminal equipment is not assigned with special-purpose physical resource, and terminal only need be monitored the PICH channel, does not need to keep uplink synchronous, has under the situation of data transmission, need transfer to the CELL_FACH state earlier.Under this state, periodic cell update mechanism is arranged, by the cycle of network configuration terminal initiation cell update, so that network is understood the state of terminal.Because cell updating course relates to the transmission of RRC message, be provided with shortlyer at MAX_T_Detect, under the situation such as a few minutes, frequent initiation cell updating course can increase eats dishes without rice or wine and the load of RRC signaling, and efficient is not high.At present in the HSPA+ system, strengthen the CELL_PCH state and have the terminal of dedicated H-RNTI if network needs paging to be in, then base station equipment is at first at PICH channel call terminal, terminal receives paging indication back and receives synchronization notice information at thereafter HS-SCCH channel, initiates the uplink synchronous process then and confirms to set up synchronously to finish to the base station by the E-RUCCH channel; And the terminal that is in the URA_PCH state can't be assigned with dedicated H-RNTI, so can't use this flow process.

In addition, for the terminal that is in the CELL_PCH state, the discontinuous monitoring that can carry out the PICH channel is to reach power saving effect, and the moment of concrete monitoring PICH channel is as follows according to the information calculations such as IMSI of terminal:

Paging Occasion={ (IMSI div K) mod (DRX cycle length div PBP) } * PBP+n*DRX cycle length+Frame Offset, wherein, and n=0,1,2..., SFN is less than its maximum.

And certain terminal specifically needs decoding after calling time receives the PICH channel PI (PageIndicator, paging indication) is also based on the IMSI sign of this terminal:

PI=DRX Index mod Np, wherein DRX Index=IMSI/8192.

From above-mentioned analysis as can be seen, at present at the terminal that is in idle pulley, there is not effective mechanism to allow network understand the state of terminal; Terminal for terminal that is in the CELL_FACH state and CELL_PCH/URA_PCH state, if adopt the cycle that periodic cell update is set to equal MAX_T_Detect, can under the original unsure situation of terminal, frequently initiate cell updating course, increase empty overhead according to transmission.Therefore, be necessary to propose the scheme that a kind of effective MTC equipment off-line detects and notifies, to address the above problem.

Summary of the invention

Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, special detect the off-line incident of terminal by network side after, with reporting events to core net, and further by core net through gathering final notice to MTC user or MTC server.

In order to achieve the above object, embodiments of the invention have proposed the method that a kind of MTC equipment off-line detects and notifies on the one hand, may further comprise the steps:

Core net is to the maximum offline state-detection time demand MAX_T_Detect of Radio Access Network RAN configuration MTC equipment;

The off-line state detection is carried out to described MTC equipment in base station among the described RAN, when finding that described MTC equipment is in off-line state, reports described MTC equipment to radio network controller (RNC) and is in off-line state;

Described RNC adjudicates described MTC equipment and whether is in off-line state, when judging that described MTC equipment is in off-line state, reports described MTC equipment to described core net and is in off-line state.

Embodiments of the invention have also proposed the system that a kind of MTC equipment off-line detects and notifies on the other hand, comprise equipment of the core network, base station under the wireless access network RAN and wireless network control district RNC,

Described equipment of the core network is used for the maximum offline state-detection time demand MAX_T_Detect to Radio Access Network RAN configuration MTC equipment, and receives the information that described MTC equipment that described RNC reports is in off-line state;

Described base station is used for that described MTC equipment is carried out off-line state and detects, and when finding that described MTC equipment is in off-line state, reports described MTC equipment to radio network controller (RNC) and is in off-line state;

Described RNC is used to adjudicate described MTC equipment and whether is in off-line state, when judging that described MTC equipment is in off-line state, reports described MTC equipment to described equipment of the core network and is in off-line state.

The such scheme that the present invention proposes, solved in the existing system not at the offline inspection of MTC equipment and the problem of informing mechanism, the technical scheme that proposes according to the present invention, the base station equipment by network side is by finishing basic offline inspection process with MTC equipment alternately based on the physical layer signaling of eating dishes without rice or wine; , only relate to the physical layer procedure of eating dishes without rice or wine, and do not relate to the mutual of high-level signaling not under the off-line case at MTC equipment.Compare the mode of carrying out offline inspection by flow processs such as periodic cell update, periodic location updates, can effectively reduce the complexity of high-level signaling expense and network element.In addition, the technical scheme that the present invention proposes is very little to the change of existing system, can not influence the compatibility of system, and realizes simple, efficient.

Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.

Description of drawings

Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:

Fig. 1 is the method flow diagram that embodiment of the invention MTC equipment off-line detects and notifies;

Fig. 2 is sub-district off-line indication NBAP message flow schematic diagram;

Fig. 3 is sub-district off-line indication FP control frame schematic diagram;

Fig. 4 is the system configuration schematic diagram that embodiment of the invention MTC equipment off-line detects and notifies.

Embodiment

Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.

In order to realize the present invention's purpose, the invention discloses the method that a kind of MTC equipment off-line detects and notifies, may further comprise the steps:

Core net is to the maximum offline state-detection time demand MAX_T_Detect of Radio Access Network RAN configuration MTC equipment; The off-line state detection is carried out to described MTC equipment in base station among the described RAN, when finding that described MTC equipment is in off-line state, reports described MTC equipment to radio network controller (RNC) and is in off-line state; Described RNC adjudicates described MTC equipment and whether is in off-line state, when judging that described MTC equipment is in off-line state, reports described MTC equipment to described core net and is in off-line state.

As shown in Figure 1, the method flow diagram for embodiment of the invention MTC equipment off-line detects and notifies may further comprise the steps:

S101: the maximum offline state-detection time demand of core net configuration MTC equipment.

In step S101, core net is to the maximum offline state-detection time demand MAX_T_Detect of Radio Access Network RAN configuration MTC equipment.

Therefore, core net should at first be obtained the contracted user's of current MTC equipment maximum offline state-detection time demand MAX_T_Detect, and can carry out necessary judgement: if the MAX_T_Detect of this MTC equipment is shorter, minute level for example, then core net makes this MTC equipment enter connected state by the method for network side paging.

Core net is notified RNC by the RANAP signaling of Iu interface with the MAX_T_Detect relevant information, and corresponding RANAP message can be that RAB sets up message; Accordingly, RNC equipment is notified the base station by Iub interface chain of command or user's face with the MAX_T_Detect relevant information, increase request/radio link reconfiguration request/NBAP message such as Physical Shared Channel reconfiguration request as setting up request/Radio Link by the Radio Link of chain of command, or FP (Frame Protocol, the Frame Protocol) frame that passes through user's face carries MAX_T_Detect information.Further, if moving of RNC taken place to stride in MTC equipment, this information also can be SRNC (Serving Radio Network Controller, service wireless network controller) by Iur interface notice DRNC (Drift Radio NetworkController, floating radio network controller), the advice method that relates to may be the RSNAP message of chain of command or the FP frame of user's face.

S102: the off-line state detection is carried out to MTC equipment in the base station, reports the MTC equipment that is in off-line state to RNC.

In step S102, the off-line state detection is carried out to MTC equipment in the base station among the RAN, when finding that MTC equipment is in off-line state, reports described MTC equipment to radio network controller (RNC) and is in off-line state.

Base station equipment is carried out off-line state to corresponding M TC equipment and is detected.Concrete offline inspection mechanism is in different RRC states at terminal and carries out different state-detection.

Particularly, to being in the described MTC equipment of CELL_PCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at described MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station in the described timer NB_MAC_T_Detect running receives the transmission of the upstream data or the up channel of described MTC equipment, then restarts timer; When described timer NB_MAC_T_Detect was overtime, then the HS-SCCH synch command was initiated in the base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in the base station, thought that then described MTC equipment is in off-line state.

Strengthen the CELL_PCH characteristic and have the terminal of dedicated H-RNTI at supporting in the HSPA+ system, for carrying out offline inspection, can consider that the MTC device network that is in the CELL_PCH state is necessary for it distributes special-purpose H-RNTI, can based on the signatory MAX_T_Detect of MTC equipment timer NB_MAC_T_Detect be set by base station equipment thus and trigger of " paging " of PICH channel MTC equipment, the MTC device decodes is after the PICH paging, receive follow-up HS-SCCH channel, and initiate to set up synchronously process.If the base station does not receive the E-RUCCH affirmation uplink synchronous foundation of terminal at the appointed time, then the base station judges that terminal is in " sub-district off-line state ".A specific embodiment for example is: at certain MTC equipment, initialization timing device value is 0, this timer is called timer NB_MAC_T_Detect, set up for the first time at MTC equipment and network and to start for the first time when synchronous, overtime and stop when running to MAX_T_Detect, any moment base station in the timer running receives the transmission of the upstream data or the up channel of terminal, then restarts timer; Work as timer expiry, then the HS-SCCH synch command is initiated in the base station.The number of times of HS-SCCH synch command can promptly be initiated based on the N_protect in the existing protocol in the base station herein, and T_protect, promptly sends the blanking time of twice HS-SCCH synch command, initiates repeatedly HS-SCCH synchronizing process.If the base station receives the E-RUCCH confirmation of synchronization, then think not off-line of terminal; If the base station initiates repeatedly all not receive the E-RUCCH confirmation of synchronization synchronously based on N_protect and T_protect, judge that then terminal is in " sub-district off-line state " state.

Need to prove, by the PICH channel MTC that is in the CELL_PCH state is carried out paging, need improve based on the technology of existing protocol regulation, because the paging of existing P ICH channel is based on the IMSI of terminal and calculates the paging indication (Paging Indicator) that PICH monitors constantly and terminal need be understood, and present base station equipment can't obtain the IMSI information of terminal.So, in order to reach the purpose of initiatively using the PICH channel that the MTC equipment that is in the CELL_PCH state is carried out paging by base station equipment, need the grouping mechanism of the PICH monitoring moment and PI be improved,

Wherein, concrete monitoring PICH channel is constantly as follows according to the information calculations such as H-RNTI of terminal:

Paging Occasion={ (H-RNTI div K) mod (DRX cycle length div PBP) } * PBP+n*DRX cycle length+Frame Offset, n=0 wherein, 1,2..., SFN is less than its maximum.

And certain terminal specifically needs the PI (PageIndicator) of decoding also to identify based on the H-RNTI of this terminal after calling time receives the PICH channel:

PI=DRX Index mod Np, wherein DRX Index=H-RNTI/8192.The implication and the definition in the existing protocol of other parameter are identical.

To being in the described MTC equipment of CELL_FACH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at described MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station in the described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, then restarts timer; When described timer NB_MAC_T_Detect was overtime, then the HS-SCCH synch command was initiated in the base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in the base station, thought that then described MTC equipment is in off-line state.

At the terminal that is in the CELL_FACH state, because the base station need be carried synch command triggering terminal initiation down-going synchronous by HS-SCCH and be set up process in the HSPA+ system when sending downlink data at present, UE confirms to set up synchronously to finish to the base station by E-RUCCH; In order to carry out offline inspection, the base station can be set timer based on MAX_T_Detect and trigger MTC equipment initiation synchronizing process.A specific embodiment for example is: at certain MTC equipment, initialization timing device value is 0, this timer is set up for the first time at MTC equipment and network and is started for the first time when synchronous, overtime and stop when running to MAX_T_Detect, if receive the upstream data of terminal in any moment base station of timer operation, then restart timer; Work as timer expiry, then the HS-SCCH synch command is initiated in the base station.Follow-up flow process is identical with existing mechanism, and promptly repeatedly HS-SCCH synchronizing process can be initiated based on N_protect in the existing protocol and T_protec in the base station.If the base station receives the E-RUCCH confirmation of synchronization, then think not off-line of terminal; If the base station initiates repeatedly all not receive the E-RUCCH confirmation of synchronization synchronously based on N_protect and T_protect, judge that then terminal is in " sub-district off-line state ", the expression terminal is in the offline state in this sub-district.

To being in the described MTC equipment of CELL_DCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at described MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station in the described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, then restarts timer; When described timer NB_MAC_T_Detect is overtime, when detecting Radio Link Failure and described Radio Link, the base station do not recover synchronously, think that then described MTC equipment is in off-line state.

At the terminal that is in the CELL_DCH state, can whether can detect terminal based on existing synchronous/asynchronous maintenance mechanism can normally accept service and set up signaling to connect in current area, when base station equipment can't detect uplink synchronous, will trigger the Radio Link Failure process, and pass through the RADIO LINK FAILURE INDICATION message informing RNC of NBAP.So at the CELL_DCH state, existing synchronous/asynchronous testing mechanism can be continued to use to the off-line checking method of MTC equipment in the base station, need not to carry out extra optimization.But at the MTC equipment that is in CELL_DCH, base station equipment also needs to start timer NB_MAC_T_Detect, this timer is set up for the first time at MTC equipment and network and is started for the first time when synchronous and initialization timing device value is 0, overtime and stop when running to MAX_T_Detect, if receive the upstream data of terminal in any moment base station of timer operation, then restart timer; Do not recover synchronously if detect Radio Link Failure and this Radio Link when the NB_MAC_T_Detect timer expiry, then the base station judges that terminal is in " sub-district off-line state ".

Need to prove, when notified certain the MTC equipment of base station equipment has left this sub-district, as receive the Radio Link deletion message that RNC sends by Iub interface, promptly at the terminal of CELL_DCH state, the Radio Link that needs deletion MTC equipment, perhaps receive the message of UE state update command (Status Update Command), promptly at the terminal of CELL_PCH or CELL_FACH state, need the contextual information of certain MTC equipment of deletion, then base station equipment stops the offline inspection to this MTC equipment.

After base station equipment detected MTC equipment off-line incident, " indication of the sub-district off-line " message by redetermination was with this event notice RNC.Chain of command NBAP signaling that the base station can be by Iub interface or the FP frame by user's face carry " indication of sub-district off-line " notice RNC herein.

As embodiments of the invention, for example:

As shown in Figure 2, be sub-district off-line indication NBAP message flow schematic diagram, and indicate off-line by the NBAP signaling of redetermination, concrete message body is shown in following message form, this NBAP message called after MTC Device offline indication sends to RNC by base station equipment.

Table 1 message structure body

The information element title

Span

Information element type and reference

The semantic parsing

Key

That is assigned is key

Message is differentiated

(Mandato ry must occur M

9.2.1.45

-

Type of message

M

9.2.1.46

YES

ignore

Conversion ID

M

9.2.1.62

-

Node B communication context ID

M

9.2.1.48

YES

ignore

Sub-district off-line indication (Cell Offline Indication)

M

Enumeration type (offline, online)

YES

reject

Wherein, the sub-district off-line indication of the information element of enumeration type is used to indicate MTC equipment whether to belong to the sub-district off-line state in the above table, this IE value " offline " expression sub-district off-line; If the base station detects certain MTC equipment once off-line but the situation of follow-up resume data transmission again, also can be that " online " notifies RNC by the value of this IE.

As shown in Figure 3, be a embodiment by FP frame indication off-line.Wherein, off-line indication in sub-district can value be 0 or 1,0 expression MTC equipment sub-district off-line, and 1 expression MTC equipment sub-district off-line state is removed.Corresponding IE in concrete working mechanism and the NBAP message is similar; H-RNTI in the above-mentioned FP Frame is used to identify indicated MTC equipment.

Need to prove, for being in CELL_PCH or being in the terminal of CELL_FACH state, owing to do not have special-purpose NBAP signaling at Iub interface, so notify proper by the FP frame of user's face; For the terminal that is in the CELL_DCH state, then use NBAP signaling or FP frame all can.

In addition, the base station can also be provided with MTC equipment and be in non-URA_PCH state, to reduce the base station described MTC equipment is carried out the paging expense that offline inspection is brought.

Whether S103:RNC judgement MTC equipment is in off-line state, reports the MTC equipment that is in off-line state to core net.

In step S103, whether RNC judgement MTC equipment is in off-line state, when judging that MTC equipment is in off-line state, reports MTC equipment to core net and is in off-line state.

Report the described MTC equipment be in off-line state for the base station, when described RNC obtains the action message of MTC equipment in other sub-district, adjudicate described MTC equipment and be not in off-line state, be in off-line state otherwise adjudicate described MTC equipment.

Particularly, as embodiments of the invention, above-mentioned RNC decision rule can be as follows:

If RNC receives at " indication of sub-district off-line " message of certain MTC equipment and indicates this MTC equipment " off-line ", but also received the cell update message that this MTC equipment is initiated in its other sub-district of controlling by Iub interface, perhaps know that by the existing procedure of Iur or Iu interface this MTC equipment moves to the sub-district that other RNC controls or moving of inter-RAT taken place, for example interdepartmental system moves, move to gsm system etc. from the UMTS system, think that then this MTC equipment is owing to the mobile Serving cell of having changed, do not belong to off-line, RNC does not send " off-line indication " message of this MTC equipment under this situation to core net;

If RNC receives at " indication of sub-district off-line " message of certain MTC equipment and indicates this MTC equipment " off-line ", and do not receive the cell update message that this MTC equipment is initiated in its other sub-district of controlling, do not know that by the existing procedure of Iur or Iu interface this MTC equipment moves to the sub-district that other RNC controls or moving of inter-RAT taken place yet, for example interdepartmental system moves, move to gsm system etc. from the UMTS system, then think this MTC equipment off-line, RNC sends " off-line indication " message of this MTC equipment under this situation to core net by RANAP message.

The notice of off-line indication information needs redetermination RANAP message, or increases off-line or releasing off-line state that information element is used to indicate MTC equipment in existing RANAP message.The relevant treatment of the newly-increased IE of concrete message definition mode and the similar Iub interface of informing mechanism.

In addition, core net receives that described MTC equipment is in after the off-line state, also comprises:

Core net sends to MTC equipment user or described MTC device server with the information that MTC equipment is in off-line state, the state that equipment can in time be understood by the people of feasible supervision MTC equipment or system.

The said method that the present invention proposes, solved in the existing system not at the offline inspection of MTC equipment and the problem of informing mechanism, the technical scheme that proposes according to the present invention, the base station equipment by network side is by finishing basic offline inspection process with MTC equipment alternately based on the physical layer signaling of eating dishes without rice or wine; , only relate to the physical layer procedure of eating dishes without rice or wine, and do not relate to the mutual of high-level signaling not under the off-line case at MTC equipment.Compare the mode of carrying out offline inspection by flow processs such as periodic cell update, periodic location updates, can effectively reduce the complexity of high-level signaling expense and network element.In addition, the technical scheme that the present invention proposes is very little to the change of existing system, can not influence the compatibility of system, and realizes simple, efficient.

As shown in Figure 4, the system configuration schematic diagram for embodiment of the invention MTC equipment off-line detects and notifies comprises equipment of the core network 100, base station 300 under the wireless access network RAN and wireless network control district RNC200.

Wherein, equipment of the core network 100 is used for the maximum offline state-detection time demand MAX_T_Detect to Radio Access Network RAN configuration MTC equipment, and receives the information that MTC equipment that RNC200 reports is in off-line state;

Base station 300 is used for that MTC equipment is carried out off-line state and detects, and when finding that MTC equipment is in off-line state, reports MTC equipment to radio network controller (RNC) 200 and is in off-line state;

RNC200 is used to adjudicate MTC equipment and whether is in off-line state, when judging that MTC equipment is in off-line state, reports MTC equipment to equipment of the core network 100 and is in off-line state.

As embodiments of the invention, the 300 pairs of MTC equipment in base station carry out the off-line state detection and comprise:

To being in the MTC equipment of CELL_PCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station 300 in the timer NB_MAC_T_Detect running receives the transmission of the upstream data or the up channel of MTC equipment, then restarts timer;

When timer NB_MAC_T_Detect was overtime, then the HS-SCCH synch command was initiated in base station 300, if the E-RUCCH confirmation of synchronization that MTC equipment sends is confiscated in base station 300, thinks that then MTC equipment is in off-line state.

To being in the MTC equipment of CELL_FACH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station 300 in the timer NB_MAC_T_Detect running receives the upstream data of MTC equipment, then restarts timer;

To being in the MTC equipment of CELL_DCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station 300 in the timer NB_MAC_T_Detect running receives the upstream data of MTC equipment, then restarts timer;

When timer NB_MAC_T_Detect is overtime, when detecting Radio Link Failure and Radio Link, base station 300 do not recover synchronously, think that then MTC equipment is in off-line state.

As embodiments of the invention, base station 300 by Iub interface chain of command NBAP signaling or report the MTC equipment by the FP frame information of carrying of user's face to radio network controller (RNC) 200 and be in off-line state.

As embodiments of the invention, base station 300 is provided with MTC equipment and is in non-URA_PCH state, carries out the paging expense that offline inspection is brought to reduce by the 300 pairs of MTC equipment in base station.

As embodiments of the invention, whether RNC200 judgement MTC equipment is in off-line state comprises:

Report the MTC equipment that is in off-line state for base station 300, when RNC200 obtained the action message of MTC equipment in other sub-district, judgement MTC equipment was not in off-line state, otherwise judgement MTC equipment is in off-line state.

As embodiments of the invention, RNC200 obtains the action message mode of MTC equipment in other sub-district and comprises:

RNC200 receives the cell update message that MTC equipment is initiated; Perhaps

RNC200 knows that by Iur or Iu interface MTC equipment moves to other RNC200 compass of competency or other mobile system overlay area.

As embodiments of the invention, core net receives that MTC equipment is in after the off-line state, also comprises:

Core net sends to MTC equipment user or MTC device server with the information that MTC equipment is in off-line state.

In addition, the information that RNC200 sends is received in base station 300, and when determining that MTC equipment leaves this sub-district, base station 300 stops the offline inspection to MTC equipment.

The said system that the present invention proposes, solved in the existing system not at the offline inspection of MTC equipment and the problem of informing mechanism, the system that proposes according to the present invention, the base station equipment by network side is by finishing basic offline inspection process with MTC equipment alternately based on the physical layer signaling of eating dishes without rice or wine; , only relate to the physical layer procedure of eating dishes without rice or wine, and do not relate to the mutual of high-level signaling not under the off-line case at MTC equipment.Compare the mode of carrying out offline inspection by flow processs such as periodic cell update, periodic location updates, can effectively reduce the complexity of high-level signaling expense and network element.In addition, the technical scheme that the present invention proposes is very little to the change of existing system, can not influence the compatibility of system, and realizes simple, efficient.

One of ordinary skill in the art will appreciate that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.

In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.

The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. the method that the MTC equipment off-line detects and notifies is characterized in that, may further comprise the steps:

The off-line state detection is carried out to described MTC equipment in base station among the described RAN, when finding that described MTC equipment is in off-line state in this sub-district, reports described MTC equipment to radio network controller (RNC) and is in the sub-district off-line state;

2. the method that MTC equipment off-line as claimed in claim 1 detects and notifies is characterized in that, the base station among the described RAN is carried out the off-line state detection to described MTC equipment and comprised:

To being in the described MTC equipment of CELL_PCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at described MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station in the described timer NB_MAC_T_Detect running receives the transmission of the upstream data or the up channel of described MTC equipment, then restarts timer;

When described timer NB_MAC_T_Detect was overtime, then the HS-SCCH synch command was initiated in the base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in the base station, thought that then described MTC equipment is in off-line state.

3. the method that MTC equipment off-line as claimed in claim 1 detects and notifies is characterized in that, the base station among the described RAN is carried out the off-line state detection to described MTC equipment and comprised:

To being in the described MTC equipment of CELL_FACH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at described MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station in the described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, then restarts timer;

4. the method that MTC equipment off-line as claimed in claim 1 detects and notifies is characterized in that, the base station among the described RAN is carried out the off-line state detection to described MTC equipment and comprised:

To being in the described MTC equipment of CELL_DCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time at described MTC equipment and network and to start timer when synchronous, timing is overtime during to MAX_T_Detect to stop timing, any moment base station in the described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, then restarts timer;

When described timer NB_MAC_T_Detect is overtime, when detecting Radio Link Failure and described Radio Link, the base station do not recover synchronously, think that then described MTC equipment is in off-line state.

5. detect as one of any described MTC equipment off-line of claim 2 to 4 and the method for notice, it is characterized in that, the base station by Iub interface chain of command NBAP signaling or report described MTC equipment by the FP frame information of carrying of user's face to radio network controller (RNC) and be in off-line state.

6. the method that MTC equipment off-line as claimed in claim 1 detects and notifies is characterized in that the base station is provided with described MTC equipment and is in non-URA_PCH state, to reduce the base station described MTC equipment is carried out the paging expense that offline inspection is brought.

7. MTC equipment off-line as claimed in claim 1 detects and the method for notice, it is characterized in that, described RNC adjudicates described MTC equipment and whether is in off-line state and comprises:

Report the described MTC equipment be in off-line state for the base station, when described RNC obtains the action message of described MTC equipment in other sub-district, adjudicate described MTC equipment and be not in off-line state, be in off-line state otherwise adjudicate described MTC equipment.

8. the method that MTC equipment off-line as claimed in claim 7 detects and notifies is characterized in that described RNC obtains the action message mode of described MTC equipment in other sub-district and comprises:

Described RNC receives the cell update message that described MTC equipment is initiated; Perhaps

Described RNC knows that by Iur or Iu interface described MTC equipment moves to other RNC compass of competency or other mobile system overlay area.

9. the method that MTC equipment off-line as claimed in claim 1 detects and notifies is characterized in that described core net receives that described MTC equipment is in after the off-line state, also comprises:

The information that described core net is in off-line state with described MTC equipment sends to described MTC equipment user or described MTC device server.

10. the method that MTC equipment off-line as claimed in claim 1 detects and notifies is characterized in that, the information that described RNC sends is received in described base station, and when determining that described MTC equipment leaves this sub-district, described base station stops the offline inspection to described MTC equipment.

11. the system that the MTC equipment off-line detects and notifies is characterized in that, comprises equipment of the core network, base station under the wireless access network RAN and wireless network control district RNC,

Described base station is used for that described MTC equipment is carried out off-line state and detects, and when finding that described MTC equipment is in off-line state in this sub-district, reports described MTC equipment to radio network controller (RNC) and is in the sub-district off-line state;

12. MTC equipment off-line as claimed in claim 11 detects and the system of notice, it is characterized in that, described base station is carried out the off-line state detection to described MTC equipment and is comprised:

13. MTC equipment off-line as claimed in claim 11 detects and the system of notice, it is characterized in that, described base station is carried out the off-line state detection to described MTC equipment and is comprised:

14. MTC equipment off-line as claimed in claim 11 detects and the system of notice, it is characterized in that, described base station is carried out the off-line state detection to described MTC equipment and is comprised:

15. detect and the system of notice as one of any described MTC equipment off-line of claim 12 to 14, it is characterized in that, described base station by Iub interface chain of command NBAP signaling or report described MTC equipment by the FP frame information of carrying of user's face to radio network controller (RNC) and be in off-line state.

16. MTC equipment off-line as claimed in claim 11 detects and the system of notice, it is characterized in that described base station is provided with described MTC equipment and is in non-URA_PCH state, to reduce described base station described MTC equipment is carried out the paging expense that offline inspection is brought.

17. MTC equipment off-line as claimed in claim 11 detects and the system of notice, it is characterized in that, described RNC adjudicates described MTC equipment and whether is in off-line state and comprises:

18. MTC equipment off-line as claimed in claim 17 detects and the system of notice, it is characterized in that described RNC obtains the action message mode of described MTC equipment in other sub-district and comprises:

19. MTC equipment off-line as claimed in claim 11 detects and the system of notice, it is characterized in that described core net receives that described MTC equipment is in after the off-line state, also comprises:

20. MTC equipment off-line as claimed in claim 11 detects and the system of notice, it is characterized in that the information that described RNC sends is received in described base station, when determining that described MTC equipment leaves this sub-district, described base station stops the offline inspection to described MTC equipment.