CN105099999A - Non-access-stratum (NAS) attachment method, device and system used for machine type communication (MTC) - Google Patents
Non-access-stratum (NAS) attachment method, device and system used for machine type communication (MTC) Download PDFInfo
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- CN105099999A CN105099999A CN201410184561.1A CN201410184561A CN105099999A CN 105099999 A CN105099999 A CN 105099999A CN 201410184561 A CN201410184561 A CN 201410184561A CN 105099999 A CN105099999 A CN 105099999A
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Abstract
The present invention aims to provide an NAS attachment method, device and system used for machine type communication. A user device sends the attachment request information containing the attachment type information of signaling only to a network device, the network device sends the attachment acceptance information to the user device according to the attachment request information, and finally the user device sends the attachment finish information to the network device according to the attachment acceptance information. Compared with the prior art, the present invention provides a brand new attachment type NAS protocol of signaling only to simplify the MTC, by eliminating the unnecessary consumption and delay used for bearer setup, the LTE/EPC network resources are saved, and the MTC equipment possessing the small data transmission are supported.
Description
Technical field
The present invention relates to Internet of Things field, particularly relate to a kind of technology of NAS attachment of machine type communication.
Background technology
In existing office of computer and communication system, scale and the complexity of IoT (Internet of Things, Internetofthings) will increase with exponential form.The embedding assembly equipment be deployed in IoT will be resource-constrained usually, and is connected in the machine type communication mode (Machine-Typecommunication, MTC) minimizing man-machine interaction each other.Service for MTC optimization is different from the service to existing Human To Human's communication optimization.Comprise a large amount of communication resource restricted terminals because MTC is potential, and the terminal of each low discharge is distributed in a large amount of scopes, therefore MTC is different from current mobile network communication service.
According to 3GPPTS22.368 " demand for services (ServicerequirementsforMTC) for MTC ", small data transmission is a core feature of MTC, system should under minimum web influence (such as, signaling consumption, Internet resources, reassignment delays etc.), support the transmission of small amount of data.
Meanwhile, in actual applications, the network resources waste of 80% is set up on (bearersetup) in carrying, but only in local signaling by simple text message transmission to equipment.Consider that MTC communication will comprise billions of constrained devices in a network, the conservation schemes for resource/energy becomes the active demand of network provider and client.
Therefore, how to optimize existing protocol, to reduce in constrained devices and internetwork resource consumption and delay, become a new problem.
Summary of the invention
The object of this invention is to provide a kind of NAS adherence method for machine type communication, equipment and system.
According to an aspect of the present invention, provide a kind of NAS adherence method of machine type communication, wherein, the method comprises:
A subscriber equipment sends attachment solicited message to the network equipment, and wherein, described attachment solicited message comprises " only signaling " type of attachment information;
B is according to described attachment solicited message, and the described network equipment sends attachment and receives information to described subscriber equipment;
C receives information according to described attachment, and described subscriber equipment sends attachment and completes information to the described network equipment.
According to a further aspect in the invention, additionally provide the subscriber equipment that a kind of NAS for machine type communication adheres to, wherein, this equipment comprises:
Send-request unit, for attachment solicited message is sent to the network equipment, wherein, described attachment solicited message comprises " only signaling " type of attachment information;
Accept acquisition device, the attachment sent for obtaining the described network equipment is received information, and wherein, described attachment is received information corresponding with described attachment solicited message;
Complete dispensing device, for receiving information according to described attachment, the information that attachment completed is sent to the described network equipment.
In accordance with a further aspect of the present invention, additionally provide the network equipment that a kind of NAS for machine type communication adheres to, wherein, this equipment comprises:
Acquisition request device, for obtaining the attachment solicited message that subscriber equipment sends, wherein, described attachment solicited message comprises " only signaling " type of attachment information;
Accept dispensing device, for according to described attachment solicited message, attachment is received information and is sent to described subscriber equipment;
Complete acquisition device, the attachment sent for obtaining described subscriber equipment completes information, and wherein, described attachment completes information and receives information corresponding with described attachment.
According to another aspect of the invention, additionally provide the system that a kind of NAS for machine type communication adheres to, wherein, described system comprises subscriber equipment as described above, and the network equipment as described above.
Compared with prior art, the present invention comprises the attachment solicited message of " only signaling " type of attachment information to the network equipment by subscriber equipment transmission, and according to described attachment solicited message, the described network equipment sends attachment and receives information to described subscriber equipment, finally receive information according to described attachment, described subscriber equipment sends attachment and completes information to the described network equipment; Thus propose a kind of brand-new type of attachment " only signaling (Signalingonly); to simplify NAS (Non-Access-Stratum; the Non-Access Stratum) agreement for MTC; by eliminating non-essential consumption for carrying foundation and delay; save LTE/EPC Internet resources, and support the MTC device with small data transmission.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 illustrates the subscriber equipment and network equipment schematic diagram that adhere to according to a kind of NAS for machine type communication of one aspect of the invention;
Fig. 2 illustrates the subscriber equipment that a kind of NAS for machine type communication in accordance with a preferred embodiment of the present invention adheres to and network equipment schematic diagram;
To illustrate according to a further aspect of the present invention a kind of is coordinated the NAS adherence method flow chart for machine type communication realized with the network equipment by subscriber equipment for Fig. 3;
To illustrate in accordance with a preferred embodiment of the present invention a kind of is coordinated the NAS adherence method flow chart for machine type communication realized with the network equipment by subscriber equipment for Fig. 4;
Fig. 5 illustrates a kind of NAS attachment flow schematic diagram based on the machine type communication after the improvement of 3GPPTS23.401 specification according to another preferred embodiment of the present invention;
Fig. 6 illustrates a kind of NAS attachment removal schematic flow sheet based on the machine type communication after the improvement of 3GPPTS23.401 specification according to another preferred embodiment of the present invention.
In accompanying drawing, same or analogous Reference numeral represents same or analogous parts.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 illustrates the subscriber equipment and network equipment schematic diagram that adhere to according to a kind of NAS for machine type communication of one aspect of the invention; Wherein, described subscriber equipment 1 comprises send-request unit 11, accepts acquisition device 12, completes dispensing device 13, and the described network equipment 2 comprises acquisition request device 21, accepts dispensing device 22, completes acquisition device 23.Particularly, attachment solicited message is sent to the network equipment by the send-request unit 11 of described subscriber equipment 1, and wherein, described attachment solicited message comprises " only signaling " type of attachment information; Correspondingly, the acquisition request device 21 of the described network equipment 2 obtains the attachment solicited message that subscriber equipment sends, and wherein, described attachment solicited message comprises " only signaling " type of attachment information; Attachment, according to described attachment solicited message, is received information and is sent to described subscriber equipment by the described dispensing device 22 that accepts; Correspondingly, the acquisition device 12 that accepts of described subscriber equipment 1 obtains the attachment that the described network equipment sends and receives information, and wherein, described attachment is received information corresponding with described attachment solicited message; The described dispensing device 13 that completes is received information according to described attachment, and the information that attachment completed is sent to the described network equipment; Correspondingly, the acquisition device 23 that completes of the described network equipment 2 obtains the attachment that described subscriber equipment sends and completes information, and wherein, described attachment completes information and receives information corresponding with described attachment.
At this, described network includes but not limited to LTE (LongTermEvolution, Long Term Evolution) network, EPS (EvolvedPacketSystem, evolved packet system) network or other technologies network.
At this, the described network equipment include but not limited to independently the network equipment or the network equipment with other equipment by the mutually integrated equipment formed of network; Such as, in LTE/EPS network, the described network equipment can be the equipment that MME (MobilityManagementEntity, mobile management entity), eNB (eNodeB, evolved base station) or MME and eNB combined together are formed.
Described subscriber equipment includes but not limited to that any one needs to carry out the terminal equipment of NAS attachment (NASAttach), as computer, smart mobile phone, sensor device etc.
Those skilled in the art will be understood that other network, the network equipment or subscriber equipment are if be applicable to the present invention, within also should being included in scope.
Attachment solicited message is sent to the network equipment by the send-request unit 11 of described subscriber equipment 1, and wherein, described attachment solicited message comprises " only signaling " type of attachment information.
Particularly, described attachment solicited message, by directly will adhere to solicited message (AttachRequest) is sent to the described network equipment, also via other third party devices, can be sent to the described network equipment by described request dispensing device 11; Type of attachment information in described attachment solicited message is " only signaling (Signalingonly) ".Such as, in LTE/EPS network, the attachment solicited message comprising " only signaling " type of attachment information can be sent to the eNB corresponding with described subscriber equipment by described subscriber equipment 1; Again via described eNB, this attachment solicited message is sent to the MME as the network equipment.
Correspondingly, the acquisition request device 21 of the described network equipment 2 obtains the attachment solicited message that subscriber equipment sends, and wherein, described attachment solicited message comprises " only signaling " type of attachment information.Such as, continue upper example, and described MME and described eNB is mutual, to obtain the attachment solicited message comprising " only signaling " type of attachment information sent by described eNB.
Attachment, according to described attachment solicited message, is received information and is sent to described subscriber equipment by the described dispensing device 22 that accepts.
Particularly, the described dispensing device 22 that accepts, according to described attachment solicited message, determines that the attachment corresponding with described attachment solicited message is received information, and described attachment is received information and be sent to described subscriber equipment.At this, described attachment directly can be received information and is sent to described subscriber equipment by the described network equipment 2, also via other third party devices, described attachment can be received information and be sent to described subscriber equipment.Such as, continue upper example, and in LTE/EPS network, described attachment can be received information and is sent to the eNB corresponding with described subscriber equipment by the described MME as the network equipment; Again via described eNB, this attachment is received information and is sent to described subscriber equipment.
At this, preferably, the type of attachment information due to described attachment solicited message is " only signaling ", and therefore described attachment is received information also corresponding with described type of attachment information; Such as, described attachment no longer comprises bearer related information (as PDN type, PDN address, EPS bearing identification etc.) in receiving information, further, owing to not supporting IMS service and urgent call under " only signaling " pattern, therefore similar instruction is supported in the information (IMSVoiceoverPSsessionsupportedIndication) of the IMS voice in PS session, emergency services supports that indication information (EmergencyServiceSupportindicator) etc. is also marked as and do not support.Thus described attachment can comprise in receiving information as the information such as " APN ", " GUTI ", " TAI list ", " session management request ", " protocol configuration option ", " NAS sequence number ", " NAS-MAC ", " LCS supports instruction ".
Correspondingly, the acquisition device 12 that accepts of described subscriber equipment 1 obtains the attachment that the described network equipment sends and receives information, and wherein, described attachment is received information corresponding with described attachment solicited message.
Particularly, described accept acquisition device 12 can with described network equipment direct interaction, or with correspond to the third party device of the described network equipment and interact, receive information to obtain described attachment, at this, the attachment obtained is received information corresponding with described attachment solicited message.Such as, if the type of attachment information in described attachment solicited message is " only signaling ", then described attachment is received information as the information corresponding to " only signaling " type.At this, owing to not needing carrying to set up in this type of attachment, therefore do not need RRC to connect yet and reshuffle.Such as, in LTE/EPS network, described subscriber equipment 1, by interacting with corresponding eNB, is received information to obtain attachment that described eNB obtains, that sent by the MME as the network equipment.
The described dispensing device 13 that completes is received information according to described attachment, and the information that attachment completed is sent to the described network equipment.
Particularly, the described dispensing device 13 that completes is received information according to described attachment, complete information be sent to the described network equipment by with described attachment corresponding attachment of receiving information, at this, described attachment directly can be completed information and be sent to the described network equipment by described subscriber equipment 1, also via other third party devices, described attachment can be completed information and is sent to the described network equipment.Such as, continue upper example, and in LTE/EPS network, described attachment can be completed information and be sent to the eNB corresponding with described subscriber equipment by described subscriber equipment 1; Again via described eNB, the information that this attachment completed is sent to the MME as the network equipment.
Correspondingly, the acquisition device 23 that completes of the described network equipment 2 obtains the attachment that described subscriber equipment sends and completes information, and wherein, described attachment completes information and receives information corresponding with described attachment.
Particularly, described in complete acquisition device 23 can with described subscriber equipment direct interaction, or with correspond to the third party device of described subscriber equipment and interact, complete information to obtain described attachment, so far, " only signaling " attaching process completes.Such as, continue upper example, and in LTE/EPS network, the described MME as the network equipment is mutual with the eNB corresponding to described subscriber equipment 1, with obtain forwarded by described eNB, complete information from the attachment of described subscriber equipment 1.
Preferably, described " only signaling " attaching process can also comprise authentication process, described subscriber equipment 1 also comprises authentication response device (not shown), and the described network equipment 2 also comprises authentication request device (not shown), address updating device (not shown).Wherein, the authentication response device of described subscriber equipment 1 and the authentication request device of the described network equipment 2 cooperatively interact, to realize, according to described attachment solicited message, carrying out authentication between described subscriber equipment 1 and the network equipment 2; Then, the address updating device of the described network equipment 2 updates stored in the address information of the described subscriber equipment in self, or by interacting with the equipment of the address information storing described subscriber equipment, to upgrade the address information of described subscriber equipment.
Such as, for LTE/EPS network, MME as the network equipment sends identity request (IdentifyRequest) to subscriber equipment, and subscriber equipment, according to described identity request, sends identity response (IdentifyResponse) to MME; Security/authentication (Security/Authentication) and identity request/response (IdentifyRequest/Response) is carried out between MME and subscriber equipment; Then, MME sends Encryption Options request (CipheredOptionsRequest) to subscriber equipment, and subscriber equipment sends Encryption Options response (CipheredOptionsResponse) according to described Encryption Options request to MME; Thus realize according to described attachment solicited message, between described subscriber equipment 1 and the network equipment 2, carry out authentication.
Continue upper example, for LTE/EPS network, described MME is to HSS (HomeSubscriberServer, home subscriber server) send scheduler request, described HSS is then according to described scheduler request, send scheduler response to described MME, thus realize the renewal to the address information of described subscriber equipment.
Fig. 2 illustrates the subscriber equipment that a kind of NAS for machine type communication in accordance with a preferred embodiment of the present invention adheres to and network equipment schematic diagram; Wherein, described subscriber equipment 1 comprises send-request unit 11 ', accepts acquisition device 12 ', completes dispensing device 13 ', detach request dispensing device 14 ', attachment removal accept acquisition device 15 ', and the described network equipment 2 comprises acquisition request device 21 ', accepts dispensing device 22 ', completes acquisition device 23 ', detach request acquisition device 24 ', attachment removal accept dispensing device 25 '.Particularly, in attaching process, attachment solicited message is sent to the network equipment by the send-request unit 11 ' of described subscriber equipment 1, and wherein, described attachment solicited message comprises " only signaling " type of attachment information; Correspondingly, the acquisition request device 21 ' of the described network equipment 2 obtains the attachment solicited message that subscriber equipment sends, and wherein, described attachment solicited message comprises " only signaling " type of attachment information; Accept dispensing device 22 ' according to described attachment solicited message, attachment is received information and is sent to described subscriber equipment; Correspondingly, the acquisition device 12 ' that accepts of described subscriber equipment 1 obtains the attachment that the described network equipment sends and receives information, and wherein, described attachment is received information corresponding with described attachment solicited message; Complete dispensing device 13 ' to receive information according to described attachment, the information that attachment completed is sent to the described network equipment; Correspondingly, the acquisition device 23 ' that completes of the described network equipment 2 obtains the attachment that described subscriber equipment sends and completes information, and wherein, described attachment completes information and receives information corresponding with described attachment.In detachment process, detach request information is sent to the described network equipment by the detach request dispensing device 14 ' of described subscriber equipment 1; Correspondingly, the detach request acquisition device 24 ' of the described network equipment 2 obtains the detach request information that described subscriber equipment sends; Attachment removal accepts dispensing device 25 ' according to described detach request information, attachment removal is received information and is sent to described subscriber equipment; Correspondingly, the attachment removal of described subscriber equipment 1 accepts acquisition device 15 ' and obtains the attachment removal that the described network equipment sends and receive information.
Wherein, the send-request unit 11 ' of described subscriber equipment 1, accept acquisition device 12 ', complete dispensing device 13 ', the acquisition request device 21 ' of the described network equipment 2, accept dispensing device 22 ', to complete corresponding intrument shown in acquisition device 23 ' with Fig. 1 identical or substantially identical, so place repeats no more, and be contained in this by way of reference.
Detach request information is sent to the described network equipment by the detach request dispensing device 14 ' of described subscriber equipment 1; Correspondingly, the detach request acquisition device 24 ' of the described network equipment 2 obtains the detach request information that described subscriber equipment sends.
Particularly, when described subscriber equipment needs to carry out attachment removal, the detach request information corresponding to type of attachment information is sent to the described network equipment by described detach request dispensing device 14 '.Such as, if described type of attachment information is " only signaling " type, then type of attachment information is set in described detach request information for " only signaling ", and this detach request information is sent to the described network equipment.Such as, for LTE/EPS network, the described network equipment is MME.
Described attachment removal accepts dispensing device 25 ' according to described detach request information, attachment removal is received information and is sent to described subscriber equipment; Correspondingly, the attachment removal of described subscriber equipment 1 accepts acquisition device 15 ' and obtains the attachment removal that the described network equipment sends and receive information.
Particularly, described attachment removal accepts dispensing device 25 ' according to described detach request information, and directly attachment removal that is corresponding and described detach request information being received information is sent to described subscriber equipment.At this, owing to not comprising loading establishing process in " only signaling " type of attachment, therefore, in detachment process, also the transmission to carrying related news is not being comprised.
Preferably, the described network equipment can also comprise Connection Release device (not shown), and described subscriber equipment can also comprise signaling apparatus for establishing (not shown); Particularly, described Connection Release device is received information according to described attachment removal, with the base station release connection corresponding to described subscriber equipment; Meanwhile, described signaling apparatus for establishing, receives information according to described attachment removal, sets up signaling with described base station.Such as, for LTE/EPS network, MME and the eNB corresponding to described subscriber equipment carries out Connection Release, and described subscriber equipment sets up signaling with corresponding eNB, thus completes the detachment process of described subscriber equipment and MME.
Preferably, described subscriber equipment also comprises renewal determining device (not shown), updating device (not shown).Wherein, described renewal determining device, according to predetermined triggering switching condition, determines type of attachment lastest imformation; Described updating device, according to described type of attachment lastest imformation, upgrades the NAS corresponding with the described network equipment and adheres to.
Particularly, described triggering switching condition includes but not limited to time variations, environmental change, triggering command etc. from external reception; Such as, described subscriber equipment preassignment can adhere to (namely only supporting message communicating) for " only the signaling " at night, and full attachment (as EPS attachment) by day, thus described renewal determining device starts full attachment by day, and when entering night, determine that type of attachment lastest imformation is for " only signaling " attachment; Or when the transducer of described subscriber equipment detects some environmental changes, described renewal determining device changes type of attachment, determines type of attachment lastest imformation; Or described renewal determining device accepts type of attachment trigger request, according to described trigger request determination type of attachment lastest imformation from MTC server or other AS (ApplicationServer, application server) etc.
Then, described updating device is according to described type of attachment lastest imformation, separation relevant information to existing type of attachment is provided, and the attachment relevant information to target type of attachment is provided, thus matched with each device of the network equipment by the subscriber equipment described in described updating device or Fig. 1/Fig. 2, to realize the renewal of adhering to the NAS corresponding with the described network equipment.At this, described separation and attaching process and the process shown in Fig. 1 or Fig. 2 same or similar, therefore not repeat them here, and be contained in this by way of reference.
Preferably, the described network equipment also comprises handover request device (not shown); Wherein, the type of attachment handover request corresponding with described subscriber equipment, according to predetermined triggering switching condition, is sent to described subscriber equipment by described handover request device, and wherein, described type of attachment handover request comprises type of attachment lastest imformation.
Particularly, described triggering switching condition includes but not limited to time variations, environmental change, triggering command etc. from external reception.
Such as, the described network equipment can determine the type of attachment handover request corresponding with described subscriber equipment according to time variations, and the type of attachment handover request corresponding with described subscriber equipment is sent to described subscriber equipment, wherein, described type of attachment handover request comprises type of attachment lastest imformation.
Or, such as, the described network equipment also can by other equipment, as MTC server or other AS etc. trigger, to determine the type of attachment handover request corresponding with described subscriber equipment, and the type of attachment handover request corresponding with described subscriber equipment is sent to described subscriber equipment, wherein, described type of attachment handover request comprises type of attachment lastest imformation.
Or the described network equipment also can carry out the determination of type of attachment handover request according to the type of attachment lastest imformation of subscriber equipment; Such as, when subscriber equipment attachment removal, described subscriber equipment sends type of attachment lastest imformation to the described network equipment, and the described network equipment preserves described type of attachment lastest imformation, until expired; If be attached before type of attachment lastest imformation described in described subscriber equipment is expired, then whether the described network equipment to detect described type of attachment consistent with the type of attachment in described type of attachment lastest imformation; As inconsistent, then the type of attachment handover request comprising described type of attachment lastest imformation be sent to described subscriber equipment and upgrade to trigger type of attachment.
To illustrate according to a further aspect of the present invention a kind of is coordinated the NAS adherence method flow chart for machine type communication realized with the network equipment by subscriber equipment for Fig. 3.Particularly, in step sl, described subscriber equipment 1 sends attachment solicited message to the network equipment 2, and wherein, described attachment solicited message comprises " only signaling " type of attachment information; In step s 2, according to described attachment solicited message, the described network equipment 2 sends attachment and receives information to described subscriber equipment 1; In step s3, receive information according to described attachment, described subscriber equipment 1 sends attachment and completes information to the described network equipment 2.
In step sl, described subscriber equipment 1 sends attachment solicited message to the network equipment 2, and wherein, described attachment solicited message comprises " only signaling " type of attachment information.
Particularly, described attachment solicited message, by directly will adhere to solicited message (AttachRequest) is sent to the described network equipment, also via other third party devices, can be sent to the described network equipment by described subscriber equipment 1; Type of attachment information in described attachment solicited message is " only signaling (Signalingonly) ".Such as, in LTE/EPS network, the attachment solicited message comprising " only signaling " type of attachment information can be sent to the eNB corresponding with described subscriber equipment by described subscriber equipment 1; Again via described eNB, this attachment solicited message is sent to the MME as the network equipment.
Correspondingly, the described network equipment 2 obtains the attachment solicited message that subscriber equipment sends, and wherein, described attachment solicited message comprises " only signaling " type of attachment information.Such as, continue upper example, and described MME and described eNB is mutual, to obtain the attachment solicited message comprising " only signaling " type of attachment information sent by described eNB.
In step s 2, according to described attachment solicited message, the described network equipment 2 sends attachment and receives information to described subscriber equipment 1.
Particularly, the described network equipment 2, according to described attachment solicited message, determines that the attachment corresponding with described attachment solicited message is received information, and described attachment is received information and be sent to described subscriber equipment.At this, described attachment directly can be received information and is sent to described subscriber equipment by the described network equipment 2, also via other third party devices, described attachment can be received information and be sent to described subscriber equipment.Such as, continue upper example, and in LTE/EPS network, described attachment can be received information and is sent to the eNB corresponding with described subscriber equipment by the described MME as the network equipment; Again via described eNB, this attachment is received information and is sent to described subscriber equipment.
At this, preferably, the type of attachment information due to described attachment solicited message is " only signaling ", and therefore described attachment is received information also corresponding with described type of attachment information; Such as, described attachment no longer comprises bearer related information (as PDN type, PDN address, EPS bearing identification etc.) in receiving information, further, owing to not supporting IMS service and urgent call under " only signaling " pattern, therefore similar instruction is supported in the information (IMSVoiceoverPSsessionsupportedIndication) of the IMS voice in PS session, emergency services supports that indication information (EmergencyServiceSupportindicator) etc. is also marked as and do not support.Thus described attachment can comprise in receiving information as the information such as " APN ", " GUTI ", " TAI list ", " session management request ", " protocol configuration option ", " NAS sequence number ", " NAS-MAC ", " LCS supports instruction ".
Correspondingly, described subscriber equipment 1 obtains the attachment that the described network equipment sends and receives information, and wherein, described attachment is received information corresponding with described attachment solicited message.
Particularly, described subscriber equipment 1 can with described network equipment direct interaction, or with correspond to the third party device of the described network equipment and interact, receive information to obtain described attachment, at this, the attachment obtained is received information corresponding with described attachment solicited message.Such as, if the type of attachment information in described attachment solicited message is " only signaling ", then described attachment is received information as the information corresponding to " only signaling " type.At this, owing to not needing carrying to set up in this type of attachment, therefore do not need RRC to connect yet and reshuffle.Such as, in LTE/EPS network, described subscriber equipment 1, by interacting with corresponding eNB, is received information to obtain attachment that described eNB obtains, that sent by the MME as the network equipment.
In step s3, receive information according to described attachment, described subscriber equipment 1 sends attachment and completes information to the described network equipment 2.
Particularly, described subscriber equipment 1 is received information according to described attachment, complete information be sent to the described network equipment by with described attachment corresponding attachment of receiving information, at this, described attachment directly can be completed information and be sent to the described network equipment by described subscriber equipment 1, also via other third party devices, described attachment can be completed information and is sent to the described network equipment.Such as, continue upper example, and in LTE/EPS network, described attachment can be completed information and be sent to the eNB corresponding with described subscriber equipment by described subscriber equipment 1; Again via described eNB, the information that this attachment completed is sent to the MME as the network equipment.
Correspondingly, the described network equipment 2 obtains the attachment that described subscriber equipment sends and completes information, and wherein, described attachment completes information and receives information corresponding with described attachment.
Particularly, the described network equipment 2 can with described subscriber equipment direct interaction, or with correspond to the third party device of described subscriber equipment and interact, complete information to obtain described attachment, so far, " only signaling " attaching process completes.Such as, continue upper example, and in LTE/EPS network, the described MME as the network equipment is mutual with the eNB corresponding to described subscriber equipment 1, with obtain forwarded by described eNB, complete information from the attachment of described subscriber equipment 1.
Preferably, described " only signaling " attaching process can also comprise authentication process, and particularly, in step S6 (not shown), according to described attachment solicited message, described subscriber equipment 1 carries out authentication with the described network equipment 2; In step S7 (not shown), the described network equipment upgrades the address information of described subscriber equipment.
Such as, in step s 6, for LTE/EPS network, the MME as the network equipment sends identity request (IdentifyRequest) to subscriber equipment, subscriber equipment, according to described identity request, sends identity response (IdentifyResponse) to MME; Security/authentication (Security/Authentication) and identity request/response (IdentifyRequest/Response) is carried out between MME and subscriber equipment; Then, MME sends Encryption Options request (CipheredOptionsRequest) to subscriber equipment, and subscriber equipment sends Encryption Options response (CipheredOptionsResponse) according to described Encryption Options request to MME; Thus realize according to described attachment solicited message, between described subscriber equipment 1 and the network equipment 2, carry out authentication.
Continue upper example, in the step s 7, for LTE/EPS network, described MME is to HSS (HomeSubscriberServer, home subscriber server) send scheduler request, described HSS, then according to described scheduler request, sends scheduler response to described MME, thus realizes the renewal to the address information of described subscriber equipment.
To illustrate in accordance with a preferred embodiment of the present invention a kind of is coordinated the NAS adherence method flow chart for machine type communication realized with the network equipment by subscriber equipment for Fig. 4.Particularly, in attaching process, in step S1 ', described subscriber equipment 1 sends attachment solicited message to the network equipment 2, and wherein, described attachment solicited message comprises " only signaling " type of attachment information; In step S2 ', according to described attachment solicited message, the described network equipment 2 sends attachment and receives information to described subscriber equipment 1; In step S3 ', receive information according to described attachment, described subscriber equipment 1 sends attachment and completes information to the described network equipment 2.In detachment process, in step S4 ', described subscriber equipment 1 sends detach request information to the described network equipment 2; In step S5 ', according to described detach request information, the described network equipment 2 sends attachment removal and receives information to described subscriber equipment 1.
Wherein, corresponding step shown in described step S1 ', step S2 ', step S3 ' with Fig. 3 is identical or substantially identical, so place repeats no more, and is contained in this by way of reference.
In step S4 ', described subscriber equipment 1 sends detach request information to the described network equipment 2.
Particularly, when described subscriber equipment needs to carry out attachment removal, the detach request information corresponding to type of attachment information is sent to the described network equipment by described subscriber equipment 1.Such as, if described type of attachment information is " only signaling " type, then type of attachment information is set in described detach request information for " only signaling ", and this detach request information is sent to the described network equipment.Such as, for LTE/EPS network, the described network equipment is MME.
In step S5 ', according to described detach request information, the described network equipment 2 sends attachment removal and receives information to described subscriber equipment 1.
Particularly, attachment removal that is corresponding and described detach request information, according to described detach request information, is directly received information and is sent to described subscriber equipment by the described network equipment 2.At this, owing to not comprising loading establishing process in " only signaling " type of attachment, therefore, in detachment process, also the transmission to carrying related news is not being comprised.
Preferably, the method also comprises, and in step S8 ' (not shown), receives information according to described attachment removal, the described network equipment 2 and the base station release connection corresponding to described subscriber equipment 1; Correspondingly, receive information according to described attachment removal, described subscriber equipment 1 sets up signaling with described base station.
Such as, for LTE/EPS network, MME and the eNB corresponding to described subscriber equipment carries out Connection Release, and described subscriber equipment sets up signaling with corresponding eNB, thus completes the detachment process of described subscriber equipment and MME.
Preferably, the method also comprises, (not shown) in step S9 ', and according to predetermined triggering switching condition, type of attachment lastest imformation determined by described subscriber equipment 1; (not shown) in step S10 ', according to described type of attachment lastest imformation, described subscriber equipment 1 upgrades the NAS corresponding with the described network equipment 2 and adheres to.
Particularly, described triggering switching condition includes but not limited to time variations, environmental change, triggering command etc. from external reception; Such as, described subscriber equipment preassignment can adhere to (namely only supporting message communicating) for " only the signaling " at night, and full attachment (as EPS attachment) by day, thus described renewal determining device starts full attachment by day, and when entering night, determine that type of attachment lastest imformation is for " only signaling " attachment; Or when the transducer of described subscriber equipment detects some environmental changes, described subscriber equipment 1 changes type of attachment, determines type of attachment lastest imformation; Or described subscriber equipment 1 accepts type of attachment trigger request, according to described trigger request determination type of attachment lastest imformation from MTC server or other AS (ApplicationServer, application server) etc.
Then, described subscriber equipment 1 is according to described type of attachment lastest imformation, separation relevant information to existing type of attachment is provided, and the attachment relevant information to target type of attachment is provided, thus match with each step of the network equipment according to the subscriber equipment described in attachment/attachment removal flow process or Fig. 3/Fig. 4, to realize the renewal of adhering to the NAS corresponding with the described network equipment.At this, described separation and attaching process and the process shown in Fig. 3 or Fig. 4 same or similar, therefore not repeat them here, and be contained in this by way of reference.
At this, preferably, described subscriber equipment 1 can also determine type of attachment lastest imformation according to the type of attachment handover request of the network equipment 2, and wherein, described type of attachment handover request comprises described type of attachment lastest imformation.
Such as, the described network equipment can determine the type of attachment handover request corresponding with described subscriber equipment according to time variations, and the type of attachment handover request corresponding with described subscriber equipment is sent to described subscriber equipment, wherein, described type of attachment handover request comprises type of attachment lastest imformation.
Or, such as, the described network equipment also can by other equipment, as MTC server or other AS etc. trigger, to determine the type of attachment handover request corresponding with described subscriber equipment, and the type of attachment handover request corresponding with described subscriber equipment is sent to described subscriber equipment, wherein, described type of attachment handover request comprises type of attachment lastest imformation.
Or the described network equipment also can carry out the determination of type of attachment handover request according to the type of attachment lastest imformation of subscriber equipment; Such as, when subscriber equipment attachment removal, described subscriber equipment sends type of attachment lastest imformation to the described network equipment, and the described network equipment preserves described type of attachment lastest imformation, until expired; If be attached before type of attachment lastest imformation described in described subscriber equipment is expired, then whether the described network equipment to detect described type of attachment consistent with the type of attachment in described type of attachment lastest imformation; As inconsistent, then the type of attachment handover request comprising described type of attachment lastest imformation be sent to described subscriber equipment and upgrade to trigger type of attachment.
Fig. 5 illustrates the NAS attachment flow schematic diagram of a kind of " only signaling " type based on the machine type communication after the improvement of 3GPPTS23.401 specification according to another preferred embodiment of the present invention.
At this, indicate " only signaling " attachment, by the carrying correlation step of deleting from existing NAS attaching process by the step that X marks in Fig. 5.
Particularly, step S51 to step S53 is attachment request sending process.In step s 51, UE sends attachment request to eNB; In step S52, eNB sends this attachment request to new MME; In step S53, new MME sends the request of identification to old MME/SGSN, and correspondingly, identification response is sent to new MME by old MME/SGSN.At this, described attachment request in type of attachment information, namely EPSattachtypeIE be indicated as being " only signaling ".
Step S54 to step S56 completes the authentication process between UE and new MME.In step S54, new MME sends identity request to UE, and correspondingly, UE sends identity response to new MME; In step S55a, between UE and new MME, complete authentication/security processes, in step S55b, between UE and new MME, complete identity request/response, meanwhile, new MME and EIR completes ME authentication; In step S56, new MME sends Encryption Options request to UE, and correspondingly, UE sends Encryption Options response to new MME.
Step S58, step S59 and step S11 complete the address renewal process between new MME and HSS.In step S58, new MME sends address update request to HSS; In step S59, HSS sends to old MME/SGSN and cancels Address requests, and correspondingly, old MME/SGSN sends to HSS and cancels place response; In step s 11, HSS sends place renewal response to new MME.
Step S517 and step S518 is that attachment is received information process of transmitting.In step S517, new MME by not comprising bearer related information, the information (IMSVoiceoverPSsessionsupportedIndication) of IMS voice, emergency services support that the attachment of indication information (EmergencyServiceSupportindicator) etc. is received information and be sent to eNB; In step S18, this attachment only will be received information and will be sent to UE by eNB.
Step S521 and step S522 is that attachment completes information process of transmitting.In step S521, UE sends attachment to eNB and completes information; In step S522, this attachment is completed information and is sent to new MME by eNB.So far, " only signaling " attaching process completes.
At this, new MME refers to the MME that described UE newly adheres to, and old MME/SGSN refers to the MME of the former attachment of described UE; Flow process shown in Fig. 5 is adhered to old MME/SGSN phase based on UE, and simultaneously UE carries out the process of adhering to by with new MME.If those skilled in the art will be understood that UE does not adhere to old MME/SGSN phase, then step S53, step S55b, step S59 all can cancel.
At this, those skilled in the art will be understood that under some special screnes, and such as, under rainy day scene, bearer related information still may be received; And when " only signaling " type of attachment process, these bearer related informations will be left in the basket.
At this, other details of above-mentioned steps then perform according to the carrying out defined in the joint 5.3.2.1 of 3GPPTS23.401, do not repeat them here, and are contained in this by way of reference.
Fig. 6 illustrates the NAS attachment removal schematic flow sheet of a kind of " only signaling " type based on the machine type communication after the improvement of 3GPPTS23.401 specification according to another preferred embodiment of the present invention.
Particularly, in step S61, UE sends detach request to MME; In step s 611, MME receives information to UE transmission attachment removal; In step S612, UE and eNB sets up signaling, simultaneously MME and eNB release connection.
At this, indicate " only signaling " attachment removal, by the carrying correlation step of deleting from existing NAS detachment process by the step that X marks in Fig. 6.
At this, other details of above-mentioned steps then perform according to the carrying out defined in the joint 5.3.8.2.1 of 3GPPTS23.401, do not repeat them here, and are contained in this by way of reference.
" only signaling " attachment shown in Fig. 5 or Fig. 6 or attachment removal mode, do not need set up carrying or remove carrying; From subscriber equipment to all transfer of data of network (such as MTC server, AS etc.), can be passed in message approach by means of only signaling, T4 or the T5 interface such as passing through the message approach SMS on SG or the machine SMS in MME (AnnexC of TS23.272) or defined by TS23.682.The method optimizes the NAS agreement for MTC with new type of attachment, meets the framework to MTC in the demand of MTC and TS22.682 in TS22.368.
Similarly, and in other NAS processes (as tracking area update process, TrackingAreaUpdateprocedure; Service request procedure, ServiceRequestprocedures etc.) carrying process be also simplified, for " only signaling " type of attachment.Simultaneously, according to the preferred embodiment of Fig. 4, effective flexibly for the switching between this " only signaling " type of attachment and existing type of attachment (it can be triggered by UE or other AS), to meet the different demands with minimal consumption and the MTC of delay.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.In addition, obviously " comprising " one word do not get rid of other unit or step, odd number does not get rid of plural number.Multiple unit of stating in device claim or device also can be realized by software or hardware by a unit or device.First, second word such as grade is used for representing title, and does not represent any specific order.
To abridge in specification and accompanying drawing subordinate list:
Claims (15)
1. a NAS adherence method for machine type communication, wherein, the method comprises:
A subscriber equipment sends attachment solicited message to the network equipment, and wherein, described attachment solicited message comprises " only signaling " type of attachment information;
B is according to described attachment solicited message, and the described network equipment sends attachment and receives information to described subscriber equipment;
C receives information according to described attachment, and described subscriber equipment sends attachment and completes information to the described network equipment.
2. method according to claim 1, wherein, described attachment is received information corresponding with described type of attachment information.
3. method according to claim 1 and 2, wherein, the method also comprises:
-according to described attachment solicited message, described subscriber equipment and the described network equipment carry out authentication;
-described the network equipment upgrades the address information of described subscriber equipment.
4. according to the method in any one of claims 1 to 3, wherein, the method also comprises:
-described subscriber equipment sends detach request information to the described network equipment;
-according to described detach request information, the described network equipment sends attachment removal and receives information to described subscriber equipment.
5. method according to claim 4, wherein, the method also comprises:
-receive information according to described attachment removal, the described network equipment and the base station release connection corresponding to described subscriber equipment;
-to receive information according to described attachment removal, signaling is set up in described subscriber equipment and described base station.
6. method according to any one of claim 1 to 5, wherein, the method also comprises:
-according to predetermined triggering switching condition, described subscriber equipment determination type of attachment lastest imformation;
-according to described type of attachment lastest imformation, described subscriber equipment upgrades the NAS corresponding with the described network equipment and adheres to.
7. for the subscriber equipment that the NAS of machine type communication adheres to, wherein, this equipment comprises:
Send-request unit, for attachment solicited message is sent to the network equipment, wherein, described attachment solicited message comprises " only signaling " type of attachment information;
Accept acquisition device, the attachment sent for obtaining the described network equipment is received information, and wherein, described attachment is received information corresponding with described attachment solicited message;
Complete dispensing device, for receiving information according to described attachment, the information that attachment completed is sent to the described network equipment.
8. subscriber equipment according to claim 7, wherein, this equipment also comprises:
Authentication response device, for according to described attachment solicited message, carries out authentication with the described network equipment.
9. the subscriber equipment according to claim 7 or 8, wherein, this equipment also comprises:
Detach request dispensing device, for being sent to the described network equipment by detach request information;
Attachment removal accepts acquisition device, and the attachment removal sent for obtaining the described network equipment is received information.
10. the subscriber equipment according to any one of claim 7 to 9, wherein, this equipment also comprises:
Upgrade determining device, for according to predetermined triggering switching condition, determine type of attachment lastest imformation;
Updating device, for according to described type of attachment lastest imformation, upgrades the NAS corresponding with the described network equipment and adheres to.
The network equipment that 11. 1 kinds of NAS for machine type communication adhere to, wherein, this equipment comprises:
Acquisition request device, for obtaining the attachment solicited message that subscriber equipment sends, wherein, described attachment solicited message comprises " only signaling " type of attachment information;
Accept dispensing device, for according to described attachment solicited message, attachment is received information and is sent to described subscriber equipment;
Complete acquisition device, the attachment sent for obtaining described subscriber equipment completes information, and wherein, described attachment completes information and receives information corresponding with described attachment.
12. network equipments according to claim 11, wherein, this equipment also comprises:
Authentication request device, for according to described attachment solicited message, carries out authentication with described subscriber equipment;
Address updating device, for upgrading the address information of described subscriber equipment.
13. network equipments according to claim 11 or 12, wherein, this equipment also comprises:
Detach request acquisition device, for obtaining the detach request information that described subscriber equipment sends;
Attachment removal accepts dispensing device, for according to described detach request information, attachment removal is received information and is sent to described subscriber equipment.
14. according to claim 11 to the network equipment according to any one of 13, and wherein, this equipment also comprises:
Handover request device, for according to predetermined triggering switching condition, is sent to described subscriber equipment by the type of attachment handover request corresponding with described subscriber equipment, and wherein, described type of attachment handover request comprises type of attachment lastest imformation.
The system that 15. 1 kinds of NAS for machine type communication adhere to, wherein, described system comprises the subscriber equipment according to any one of claim 7 to 10, and the network equipment according to any one of claim 11 to 14.
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| CN201410184561.1A CN105099999A (en) | 2014-05-04 | 2014-05-04 | Non-access-stratum (NAS) attachment method, device and system used for machine type communication (MTC) |
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| CN201410184561.1A CN105099999A (en) | 2014-05-04 | 2014-05-04 | Non-access-stratum (NAS) attachment method, device and system used for machine type communication (MTC) |
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