CN102215524B - Machine type communication (MTC) equipment offline state detection and notification method and system - Google Patents
Machine type communication (MTC) equipment offline state detection and notification method and system Download PDFInfo
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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
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) communicate by letter as a kind of novel communication theory, its objective is the communication technology of number of different types is organically combined, as: machine is to machine communication, apparatus control communication, man-machine interaction communication, mobile interconnected communication, thus the development of promotion social production and life style.The business of future Human To Human communication may only account for 1/3 of whole terminal market, and the communication of larger quantity is M2M communication service.
Current mobile communications network designs for interpersonal communication, as determining of: network capacity etc.Support M2M communication just need to be optimized the mechanism of mobile communication system according to the feature of M2M communication if wish to utilize mobile communications network, to can not be subject to or be subject to less impact in the person to person's communication on traditional, realize better M2M communication.
List the current MTC recognizing some characteristics that may exist of communicating by letter below, an actual MTC terminal 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 MTC terminal can only access within the time period of network appointment.
The transfer of data that-MTC network and network side carry out is not high to requirement of real-time to transfer of data, has time tolerance that is:;
-MTC terminal energy constraint, requires extremely low power consumption;
Between-MTC terminal and network side, only carry out the communication of small data quantity;
-MTC terminal can manage take group as unit;
-need to monitor the state of MTC terminal, if find that certain MTC terminal, in off-line state, needs to notify corresponding network element device; Etc..
Need to be to the characteristic that MTC SOT state of termination detects and off-line is notified for what addressed above, main application scenarios is: and H2H (Human to Human, Human To Human) communication difference, because MTC equipment may be under long unmanned monitoring situation, in the time cannot continuing to communicate by letter between equipment and network, for example due to link-quality variation, due to 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 ", the time being detected to this disconnecting from actual generation disconnecting, be called MAX_T_Detect, requirement system can (based on MTC CAMEL-Subscription-Information) detect MTC equipment off-line event within this time period, the length of this time may be 1 minute to 1 hour not etc.
In current UMTS system, for the strategy of state-detection and the notice of terminal equipment, roughly situation is as follows:
For the terminal in connection mode, there are following several situations:
1) terminal is in CELL_DCH state
Under this state, what require that terminal and network must keep eating dishes without rice or wine is synchronous, therefore existing corresponding mechanism makes network can detect the quality of uplink quality, such as following DPCH (Dedicated Physical Channel having configured, DPCH) or the situation of up non-scheduling resource (non-scheduling resource) under, the reception condition of base station equipment based on upstream data can directly judge link-quality; Follow DPCH or up non-scheduled in the situation that not existing, base station need to go maintenance link synchronous by periodic scheduling.Therefore, under CELL_DCH state, network can be understood the state information of terminal in time, uses existing technology can guarantee " to the state-detection of terminal equipment ".
2) terminal is in CELL_FACH state
Under this state, terminal equipment is not assigned with special physical resource, in the situation that there is no transfer of data, terminal is without keeping uplink synchronous, terminal need to be monitored descending FACH channel or in HSPA+, need to monitor HS-SCCH channel, carries out the transmitting-receiving of data to trigger in time uplink synchronous process of establishing.Under this state, there is periodic cell update mechanism, initiated the cycle of cell update by network configuration terminal, so that network is understood the state of terminal.Because cell updating course relates to the transmission of RRC message, arrange shortlyer at MAX_T_Detect, in the situation such as a few minutes, initiating frequently cell updating course can increase the load of eating dishes without rice or wine, and efficiency is not high.
3) terminal is in CELL_PCH or URA_PCH state
Under this state, terminal equipment is not assigned with special physical resource, and terminal only need to be monitored PICH channel, does not need to keep uplink synchronous, has in the situation of data transmission, need to first transfer to CELL_FACH state.Under this state, there is periodic cell update mechanism, initiated the cycle of cell update by network configuration terminal, so that network is understood the state of terminal.Because cell updating course relates to the transmission of RRC message, arrange shortlyer at MAX_T_Detect, in the situation such as a few minutes, initiating frequently cell updating course can increase and eat dishes without rice or wine and the load of RRC signaling, and efficiency is not high.At present in HSPA+ system, if network needs paging in strengthening CELL_PCH state and having the terminal of dedicated H-RNTI, base station equipment is first at PICH channel call terminal, terminal receives synchronization notice information at HS-SCCH channel thereafter after receiving paging indication, then initiates uplink synchronous process and confirm to base station by E-RUCCH channel synchronously to have set up; And terminal in URA_PCH state cannot be assigned with dedicated H-RNTI, so cannot use this flow process.
In addition, for the terminal in CELL_PCH state, can carry out the discontinuous monitoring of PICH channel to reach power saving effect, the moment of concrete monitoring PICH channel is calculated as follows according to information such as the 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 the also mark of the IMSI based on this terminal of PI (PageIndicator, paging indication) of decoding after calling time receives PICH channel:
PI=DRX Index mod Np, wherein DRX Index=IMSI/8192.
Can find out, at present for the terminal in idle pulley, do not have effective mechanism to allow network understand the state of terminal from above-mentioned analysis; For the terminal of the terminal in 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 be original unsure according to send in the situation that in terminal, frequently initiate cell updating course, increase empty overhead.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
Object of the present invention is intended at least solve one of above-mentioned technological deficiency, detects after the off-line event of terminal especially by network side, and reporting events is arrived to core net, and further gathers final notice to MTC user or MTC server by core net process.
In order to achieve the above object, embodiments of the invention have proposed a kind of method that MTC equipment off-line detects and notifies on the one hand, comprise the following steps:
Core net is to the maximum offline state-detection time demand MAX_T_Detect of Radio Access Network RAN configuration MTC equipment;
Off-line state detection is carried out to described MTC equipment in base station in described RAN, in the time finding described MTC equipment in off-line state, reports described MTC equipment in off-line state to radio network controller (RNC);
Whether described RNC adjudicates described MTC equipment in off-line state, in the time judging described MTC equipment in off-line state, reports described MTC equipment in off-line state to described core net.
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, the base station under wireless access network RAN and wireless network control district RNC,
Described equipment of the core network, for the maximum offline state-detection time demand MAX_T_Detect to Radio Access Network RAN configuration MTC equipment, and receives described MTC equipment that described RNC the reports information in off-line state;
Described base station, for described MTC equipment is carried out to off-line state detection, in the time finding described MTC equipment in off-line state, reports described MTC equipment in off-line state to radio network controller (RNC);
Described RNC, for whether adjudicating described MTC equipment in off-line state, in the time judging described MTC equipment in off-line state, reports described MTC equipment in off-line state to described equipment of the core network.
The such scheme that the present invention proposes, solve in existing system not for the offline inspection of MTC equipment and the problem of informing mechanism, the technical scheme proposing according to the present invention, the base station equipment by network side is by completing alternately basic offline inspection process with MTC equipment 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 off-line case at MTC equipment.Compare the mode of carrying out offline inspection by the flow process such as periodic cell update, periodic location update, 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 affect the compatibility of system, and realizes simple, efficient.
The aspect that the present invention is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments obviously and easily and understand, wherein:
Fig. 1 is the method flow diagram that embodiment of the present invention MTC equipment off-line detects and notifies;
Tu2Wei community off-line indication NBAP message flow schematic diagram;
Tu3Wei community off-line indication FP control frame schematic diagram;
Fig. 4 is the system configuration schematic diagram that embodiment of the present 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 same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In order to realize the present invention's object, the invention discloses a kind of method that MTC equipment off-line detects and notifies, comprise the following steps:
Core net is to the maximum offline state-detection time demand MAX_T_Detect of Radio Access Network RAN configuration MTC equipment; Off-line state detection is carried out to described MTC equipment in base station in described RAN, in the time finding described MTC equipment in off-line state, reports described MTC equipment in off-line state to radio network controller (RNC); Whether described RNC adjudicates described MTC equipment in off-line state, in the time judging described MTC equipment in off-line state, reports described MTC equipment in off-line state to described core net.
As shown in Figure 1, be the method flow diagram that embodiment of the present invention MTC equipment off-line detects and notifies, comprise the following 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, first core net should obtain 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, for example minute level, 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 by MAX_T_Detect relevant information, and corresponding RANAP message can be that RAB sets up message; Accordingly, RNC equipment is notified base station by Iub interface chain of command or user's face by MAX_T_Detect relevant information, increase the NBAP message such as request/radio link reconfiguration request/Physical Shared Channel reconfiguration request as the wireless link request by chain of command/wireless link, or carry MAX_T_Detect information by FP (Frame Protocol, the Frame Protocol) frame of user's face.Further, if there is the movement across RNC in MTC equipment, this information can be also SRNC (Serving Radio Network Controller, service wireless network controller) by Iur interface notice DRNC (Drift Radio NetworkController, floating radio network controller), the advice method relating to may be the RSNAP message of chain of command or the FP frame of user's face.
S102: off-line state detection is carried out to MTC equipment in base station, reports in the MTC of off-line state equipment to RNC.
In step S102, off-line state detection is carried out to MTC equipment in the base station in RAN, in the time finding MTC equipment in off-line state, reports described MTC equipment in off-line state to radio network controller (RNC).
Base station equipment is carried out off-line state detection to corresponding MTC equipment.Concrete offline inspection mechanism, carries out different state-detection for terminal in different RRC states.
Particularly, to the described MTC equipment in CELL_PCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the transmission of upstream data or the up channel of described MTC equipment, restarts timer; In the time that described timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in base station, thinks that described MTC equipment is in off-line state.
In HSPA+ system, strengthen CELL_PCH characteristic and there is the terminal of dedicated H-RNTI for supporting, for carrying out offline inspection, can consider that the MTC device network in CELL_PCH state is necessary for to it distributes special H-RNTI, can based on the signing MAX_T_Detect of MTC equipment, timer NB_MAC_T_Detect be set by base station equipment thus and trigger " paging " of PICH channel to MTC equipment, MTC device decodes is after PICH paging, receive follow-up HS-SCCH channel, and initiate synchronous process of establishing.If base station does not receive the E-RUCCH confirmation uplink synchronous foundation of terminal at the appointed time, base station judges that terminal is in " community off-line state ".A specific embodiment is for example: for certain MTC equipment, initialization timing device value is 0, this timer is called timer NB_MAC_T_Detect, set up for the first time when synchronous and start for the first time at MTC equipment and network, overtime and stop while running to MAX_T_Detect, any moment base station in timer running receives the transmission of upstream data or the up channel of terminal, restarts timer; Work as timer expiry, HS-SCCH synch command is initiated in base station.The N_protect that base station can be based in existing protocol herein, the number of times of initiating HS-SCCH synch command, and T_protect, send interval time of twice HS-SCCH synch command, initiates repeatedly HS-SCCH synchronizing process.If base station receives E-RUCCH confirmation of synchronization, think not off-line of terminal; If base station initiates repeatedly synchronously all not receive E-RUCCH confirmation of synchronization based on N_protect and T_protect, judge that terminal is in " community off-line state " state.
It should be noted that, by PICH channel, the MTC in CELL_PCH state is carried out to paging, need to the technology based on existing protocol regulation improve, because the paging of existing PICH channel is to calculate PICH based on the IMSI of terminal to monitor the paging indication (Paging Indicator) that moment and terminal need to be understood, and base station equipment cannot obtain the IMSI information of terminal at present.So in order to reach the object that initiatively uses PICH channel the MTC equipment in CELL_PCH state to be carried out to paging by base station equipment, the grouping mechanism that need to monitor moment and PI to PICH improves,
Wherein, the concrete monitoring PICH channel moment is calculated as follows according to information such as the H-RNTI of terminal:
Paging Occasion={ (H-RNTI div K) mod (DRX cycle length div PBP) } * PBP+n*DRX cycle length+Frame Offset, wherein n=0,1,2..., SFN is less than its maximum.
And certain terminal specifically needs the also mark of the H-RNTI based on this terminal of PI (PageIndicator) of decoding after calling time receives PICH channel:
PI=DRX Index mod Np, wherein DRX Index=H-RNTI/8192.The implication of other parameter is identical with the definition in existing protocol.
To the described MTC equipment in CELL_FACH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, restarts timer; In the time that described timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in base station, thinks that described MTC equipment is in off-line state.
For the terminal in CELL_FACH state, because synch command triggering terminal initiation down-going synchronous process of establishing need to be carried by HS-SCCH in base station in current HSPA+ system in the time sending downlink data, UE confirms to base station by E-RUCCH synchronously to have set up; In order to carry out offline inspection, base station can be set timer based on MAX_T_Detect and trigger MTC equipment initiation synchronizing process.A specific embodiment is for example: for certain MTC equipment, initialization timing device value is 0, this timer is set up for the first time when synchronous and is started for the first time at MTC equipment and network, overtime and stop while running to MAX_T_Detect, if receive the upstream data of terminal in any moment base station of timer operation, restart timer; Work as timer expiry, HS-SCCH synch command is initiated in base station.Follow-up flow process is identical with existing mechanism, and repeatedly HS-SCCH synchronizing process can N_protect and T_protec based in existing protocol be initiated in base station.If base station receives E-RUCCH confirmation of synchronization, think not off-line of terminal; If base station initiates repeatedly synchronously all not receive E-RUCCH confirmation of synchronization based on N_protect and T_protect, judge that terminal is in " community off-line state ", represent in terminal Gai community in offline state.
To the described MTC equipment in CELL_DCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, restarts timer; In the time that described timer NB_MAC_T_Detect is overtime, when detecting Radio Link Failure and described wireless link, base station do not recover synchronously, think that described MTC equipment is in off-line state.
For the terminal in CELL_DCH state, can detect based on existing synchronous/asynchronous maintenance mechanism can whether terminal can normally be accepted in current area service and set up signaling to connect, when base station equipment cannot detect uplink synchronous, will trigger Radio Link Failure process, and by the RADIO LINK FAILURE INDICATION message informing RNC of NBAP.Therefore for CELL_DCH state, existing synchronous/asynchronous testing mechanism can be continued to use to the off-line checking method of MTC equipment in base station, without carrying out extra optimization.But for the MTC equipment in CELL_DCH, base station equipment also needs to start timer NB_MAC_T_Detect, this timer is set up for the first time and is started for the first time when synchronous and initialization timing device value is 0 at MTC equipment and network, overtime and stop while running to MAX_T_Detect, if receive the upstream data of terminal in any moment base station of timer operation, restart timer; If detect that in the time of NB_MAC_T_Detect timer expiry Radio Link Failure and this wireless link do not recover synchronously, base station judges that terminal is in " community off-line state ".
It should be noted that, when notified certain the MTC equipment of base station equipment has left this community, the wireless link that RNC sends by Iub interface as received is deleted message, for the terminal of CELL_DCH state, need to delete the wireless link of MTC equipment, or receive the message of more newer command of UE state (Status Update Command), for the terminal of CELL_PCH or CELL_FACH state, need to delete the contextual information of certain MTC equipment, base station equipment stops the offline inspection to this MTC equipment.
Base station equipment detects after MTC equipment off-line event, and " indication of the community off-line " message by new definition is by this event notice RNC." indication of community off-line " notice RNC can be carried by the chain of command NBAP signaling of Iub interface or by the FP frame of user's face in base station herein.
As embodiments of the invention, for example:
As shown in Figure 2, for community off-line indication NBAP message flow schematic diagram, and by the NBAP signaling indication off-line of new definition, concrete message body is as shown in message form below, this NBAP message called after MTC Device offline indication, sends to RNC by base station equipment.
Table 1 message structure body
| Information element title | Span | Information element type and reference | Semantic parsing | Key | That assigns 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 | ||
| Community off-line indication (Cell Offline Indication) | M | Enumeration type (offline, online) | YES | reject |
Wherein, in above table, the indication of the community off-line of the information element of enumeration type is used to indicate MTC equipment and whether belongs to community off-line state, and this IE value " offline " represents community off-line; If base station detects once off-line but the situation of follow-up resume data transmission again of certain MTC equipment, can be also that " online " notifies RNC by the value of this IE.
As shown in Figure 3, for indicate an embodiment of off-line by FP frame.Wherein, off-line indication in community can value be 0 or 1,0 expression MTC equipment community off-line, and 1 represents the off-line state releasing of MTC equipment community.Corresponding IE in concrete working mechanism and NBAP message is similar; H-RNTI in above-mentioned FP Frame is for identifying indicated MTC equipment.
It should be noted that, in CELL_PCH or the terminal in CELL_FACH state, owing to there is not special NBAP signaling at Iub interface, therefore notify proper by the FP frame of user's face; For the terminal in CELL_DCH state, use NBAP signaling or FP frame all can.
In addition, base station can also arrange MTC equipment in non-URA_PCH state, to reduce base station, described MTC equipment is carried out to the paging expense that offline inspection is brought.
Whether S103:RNC judgement MTC equipment, in off-line state, is reported in the MTC of off-line state equipment to core net.
In step S103, RNC judgement MTC equipment, whether in off-line state, in the time judging MTC equipment in off-line state, is reported MTC equipment in off-line state to core net.
Report the described MTC equipment in off-line state for base station, in the time that described RNC obtains the action message of MTC equipment in other community, adjudicate described MTC equipment not in off-line state, otherwise adjudicate described MTC equipment in off-line state.
Particularly, as embodiments of the invention, above-mentioned RNC decision rule can be as follows:
If RNC receives for " indication of community off-line " message of certain MTC equipment and indicates this MTC equipment " off-line ", but also receive by Iub interface the cell update message that initiate other community that this MTC equipment controls at it, or know the community that this MTC equipment moving is controlled to other RNC or the movement that inter-RAT has occurred by the existing procedure of Iur or Iu interface, for example cross-system moves, move to gsm system etc. from UMTS system, think that this MTC equipment is due to the mobile Serving cell of having changed, do not belong to off-line, in this situation, RNC does not send " off-line indication " message of this MTC equipment to core net,
If RNC receives for " indication of community off-line " message of certain MTC equipment and indicates this MTC equipment " off-line ", and do not receive the cell update message that initiate other community that this MTC equipment controls at it, also do not know the community that this MTC equipment moving is controlled to other RNC or the movement that inter-RAT has occurred by the existing procedure of Iur or Iu interface, for example cross-system moves, move to gsm system etc. from UMTS system, think this MTC equipment off-line, in this situation, RNC sends " off-line indication " message of this MTC equipment to core net by RANAP message.
The notice of off-line indication information needs new definition RANAP message, or in existing RANAP message, increases information element and be used to indicate the off-line of MTC equipment or remove off-line state.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, after off-line state, also comprises:
Core net sends to MTC equipment user or described MTC device server by MTC equipment in the information of off-line state, makes to supervise the people of MTC equipment or system and can understand in time the state of equipment.
The said method that the present invention proposes, solve in existing system not for the offline inspection of MTC equipment and the problem of informing mechanism, the technical scheme proposing according to the present invention, the base station equipment by network side is by completing alternately basic offline inspection process with MTC equipment 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 off-line case at MTC equipment.Compare the mode of carrying out offline inspection by the flow process such as periodic cell update, periodic location update, 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 affect the compatibility of system, and realizes simple, efficient.
As shown in Figure 4, for the system configuration schematic diagram that embodiment of the present invention MTC equipment off-line detects and notifies, comprise equipment of the core network 100, the base station 300 under wireless access network RAN and wireless network control district RNC200.
Wherein, equipment of the core network 100, for the maximum offline state-detection time demand MAX_T_Detect to Radio Access Network RAN configuration MTC equipment, and receives MTC equipment that RNC200 the reports information in off-line state;
Base station 300, for MTC equipment is carried out to off-line state detection, in the time finding MTC equipment in off-line state, reports MTC equipment in off-line state to radio network controller (RNC) 200;
RNC200, for whether adjudicating MTC equipment in off-line state, in the time judging MTC equipment in off-line state, reports MTC equipment in off-line state to equipment of the core network 100.
As embodiments of the invention, base station 300 is carried out off-line state detection to MTC equipment and is comprised:
To the MTC equipment in CELL_PCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station 300 in timer NB_MAC_T_Detect running receives the transmission of upstream data or the up channel of MTC equipment, restarts timer;
In the time that timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station 300, if the E-RUCCH confirmation of synchronization that MTC equipment sends is confiscated in base station 300, thinks that MTC equipment is in off-line state.
As embodiments of the invention, base station 300 is carried out off-line state detection to MTC equipment and is comprised:
To the MTC equipment in CELL_FACH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station 300 in timer NB_MAC_T_Detect running receives the upstream data of MTC equipment, restarts timer;
In the time that timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station 300, if the E-RUCCH confirmation of synchronization that MTC equipment sends is confiscated in base station 300, thinks that MTC equipment is in off-line state.
As embodiments of the invention, base station 300 is carried out off-line state detection to MTC equipment and is comprised:
To the MTC equipment in CELL_DCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station 300 in timer NB_MAC_T_Detect running receives the upstream data of MTC equipment, restarts timer;
In the time that timer NB_MAC_T_Detect is overtime, when detecting Radio Link Failure and wireless link, base station 300 do not recover synchronously, think that MTC equipment is in off-line state.
As embodiments of the invention, MTC equipment is reported in off-line state by the chain of command NBAP signaling of Iub interface or by the FP frame carry information of user's face to radio network controller (RNC) 200 in base station 300.
As embodiments of the invention, base station 300 arranges MTC equipment in non-URA_PCH state, to reduce base station 300, MTC equipment is carried out to the paging expense that offline inspection is brought.
As embodiments of the invention, whether RNC200 judgement MTC equipment comprises in off-line state:
Report the equipment in the MTC of off-line state for base station 300, in the time that RNC200 obtains the action message of MTC equipment in other community, judgement MTC equipment is not in off-line state, otherwise judgement MTC equipment is in off-line state.
As embodiments of the invention, RNC200 obtains MTC equipment and comprises in the action message mode of other community:
RNC200 receives the cell update message that MTC equipment is initiated; Or
RNC200 knows that by Iur or Iu interface MTC equipment moving is to other RNC200 compass of competency or other mobile system overlay area.
As embodiments of the invention, core net receives that MTC equipment, after off-line state, also comprises:
Core net sends to MTC equipment user or MTC device server by MTC equipment in the information of off-line state.
In addition, the information that RNC200 sends is received in base station 300, determines that, when MTC equipment leaves this community, base station 300 stops the offline inspection to MTC equipment.
The said system that the present invention proposes, solve in existing system not for the offline inspection of MTC equipment and the problem of informing mechanism, the system proposing according to the present invention, the base station equipment by network side is by completing alternately basic offline inspection process with MTC equipment 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 off-line case at MTC equipment.Compare the mode of carrying out offline inspection by the flow process such as periodic cell update, periodic location update, 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 affect the compatibility of system, and realizes simple, efficient.
One of ordinary skill in the art will appreciate that realizing all or part of step that above-described embodiment method carries is can carry out the hardware that instruction is relevant by program to complete, described program can be stored in a kind of computer-readable recording medium, this program, in the time carrying out, comprises step of embodiment of the method one or a combination set of.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing module, can be also that the independent physics of unit exists, and also can be integrated in a module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.If described integrated module realizes and during as production marketing independently or use, also can be stored in a computer read/write memory medium using the form of software function module.
The above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles 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 (16)
1. the method that MTC equipment off-line detects and notifies, is characterized in that, comprises the following steps:
Core net is to the maximum offline state-detection time demand MAX_T_Detect of Radio Access Network RAN configuration MTC equipment;
Off-line state detection is carried out to described MTC equipment in base station in described RAN, in the time finding described MTC equipment Zhe community in off-line state, reports described MTC equipment in community off-line state to radio network controller (RNC);
Whether described RNC adjudicates described MTC equipment in off-line state, in the time judging described MTC equipment in off-line state, reports described MTC equipment in off-line state to described core net;
Receive that in described core net described MTC equipment is after off-line state, described core net sends to described MTC equipment user or described MTC device server by described MTC equipment in the information of off-line state;
The information that described RNC sends is received in described base station, determines that when described MTC equipment leaves this community, described base station stops the offline inspection to described MTC equipment.
2. the method that MTC equipment off-line as claimed in claim 1 detects and notifies, is characterized in that, the base station in described RAN is carried out off-line state detection to described MTC equipment and comprised:
To the described MTC equipment in CELL_PCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the transmission of upstream data or the up channel of described MTC equipment, restarts timer;
In the time that described timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in base station, thinks that 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 in described RAN is carried out off-line state detection to described MTC equipment and comprised:
To the described MTC equipment in CELL_FACH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, restarts timer;
In the time that described timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in base station, thinks that described MTC equipment is in off-line state.
4. the method that MTC equipment off-line as claimed in claim 1 detects and notifies, is characterized in that, the base station in described RAN is carried out off-line state detection to described MTC equipment and comprised:
To the described MTC equipment in CELL_DCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, restarts timer;
In the time that described timer NB_MAC_T_Detect is overtime, when detecting Radio Link Failure and described wireless link, base station do not recover synchronously, think that described MTC equipment is in off-line state.
5. the MTC equipment off-line as described in one of as any in claim 2 to 4 detects and the method for notice, it is characterized in that, described MTC equipment is reported in off-line state by the chain of command NBAP signaling of Iub interface or by the FP frame carry information of user's face to radio network controller (RNC) in base station.
6. the method that MTC equipment off-line as claimed in claim 1 detects and notifies, is characterized in that, base station arranges described MTC equipment in non-URA_PCH state, to reduce base station, described MTC equipment is carried out to the paging expense that offline inspection is brought.
7. the method that MTC equipment off-line as claimed in claim 1 detects and notifies, is characterized in that, whether described RNC adjudicates described MTC equipment and comprise in off-line state:
Report the described MTC equipment in off-line state for base station, in the time that described RNC obtains the action message of described MTC equipment in other community, adjudicate described MTC equipment not in off-line state, otherwise adjudicate described MTC equipment in off-line state.
8. the method that MTC equipment off-line as claimed in claim 7 detects and notifies, is characterized in that, described RNC obtains described MTC equipment and comprises in the action message mode of other community:
Described RNC receives the cell update message that described MTC equipment is initiated; Or
Described RNC knows that by Iur or Iu interface described MTC equipment moving is to other RNC compass of competency or other mobile system overlay area.
9. the system that MTC equipment off-line detects and notifies, is characterized in that, comprises equipment of the core network, the base station under wireless access network RAN and wireless network control district RNC,
Described equipment of the core network, for the maximum offline state-detection time demand MAX_T_Detect to Radio Access Network RAN configuration MTC equipment, and receives described MTC equipment that described RNC the reports information in off-line state;
Described base station, for described MTC equipment is carried out to off-line state detection, in the time finding described MTC equipment Zhe community in off-line state, reports described MTC equipment in community off-line state to radio network controller (RNC);
Described RNC, for whether adjudicating described MTC equipment in off-line state, in the time judging described MTC equipment in off-line state, reports described MTC equipment in off-line state to described equipment of the core network;
Wherein: receive that in described core net described MTC equipment is after off-line state, described core net sends to described MTC equipment user or described MTC device server by described MTC equipment in the information of off-line state;
The information that described RNC sends is received in described base station, determines that when described MTC equipment leaves this community, described base station stops the offline inspection to described MTC equipment.
10. the system that MTC equipment off-line as claimed in claim 9 detects and notifies, is characterized in that, described base station is carried out off-line state detection to described MTC equipment and comprised:
To the described MTC equipment in CELL_PCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the transmission of upstream data or the up channel of described MTC equipment, restarts timer;
In the time that described timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in base station, thinks that described MTC equipment is in off-line state.
The system that 11. MTC equipment off-lines as claimed in claim 9 detect and notify, is characterized in that, described base station is carried out off-line state detection to described MTC equipment and comprised:
To the described MTC equipment in CELL_FACH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, restarts timer;
In the time that described timer NB_MAC_T_Detect is overtime, HS-SCCH synch command is initiated in base station, if the E-RUCCH confirmation of synchronization that described MTC equipment sends is confiscated in base station, thinks that described MTC equipment is in off-line state.
The system that 12. MTC equipment off-lines as claimed in claim 9 detect and notify, is characterized in that, described base station is carried out off-line state detection to described MTC equipment and comprised:
To the described MTC equipment in CELL_DCH state, initialization timing device NB_MAC_T_Detect is 0, set up for the first time and start timer when synchronous at described MTC equipment and network, timing is overtime during to MAX_T_Detect stops timing, any moment base station in described timer NB_MAC_T_Detect running receives the upstream data of described MTC equipment, restarts timer;
In the time that described timer NB_MAC_T_Detect is overtime, when detecting Radio Link Failure and described wireless link, base station do not recover synchronously, think that described MTC equipment is in off-line state.
13. MTC equipment off-lines as described in one of as any in claim 10 to 12 detect and the system of notice, it is characterized in that, described MTC equipment is reported in off-line state by the chain of command NBAP signaling of Iub interface or by the FP frame carry information of user's face to radio network controller (RNC) in described base station.
The system that 14. MTC equipment off-lines as claimed in claim 9 detect and notify, is characterized in that, described base station arranges described MTC equipment in non-URA_PCH state, to reduce described base station, described MTC equipment is carried out to the paging expense that offline inspection is brought.
The system that 15. MTC equipment off-lines as claimed in claim 9 detect and notify, is characterized in that, whether described RNC adjudicates described MTC equipment and comprise in off-line state:
Report the described MTC equipment in off-line state for base station, in the time that described RNC obtains the action message of described MTC equipment in other community, adjudicate described MTC equipment not in off-line state, otherwise adjudicate described MTC equipment in off-line state.
The system that 16. MTC equipment off-lines as claimed in claim 15 detect and notify, is characterized in that, described RNC obtains described MTC equipment and comprises in the action message mode of other community:
Described RNC receives the cell update message that described MTC equipment is initiated; Or
Described RNC knows that by Iur or Iu interface described MTC equipment moving is to other RNC compass of competency or other mobile system overlay area.
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| CN201010141066.4A CN102215524B (en) | 2010-04-02 | 2010-04-02 | Machine type communication (MTC) equipment offline state detection and notification method and system |
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