CN103152840B - Support mixing apparatus and the system of LTE and 3G communication standard - Google Patents
Support mixing apparatus and the system of LTE and 3G communication standard Download PDFInfo
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- H—ELECTRICITY
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- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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- H—ELECTRICITY
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Abstract
The invention provides an a kind of mobile device for providing the notice of circuit switching event, this mobile device comprises circuit switching modulator-demodulator, packet data exchanged modulator-demodulator and antenna.Circuit switching modulator-demodulator, for passing through circuit-switched network transmission circuit swap data.Packet data exchanged modulator-demodulator, for passing through packet data switched network transmitting packet switched data.And antenna, for being connected to this circuit-switched network by circuit-switched wireless link, be connected to this packet data switched network by packet data exchanged wireless link, wherein this antenna comprises a transmitter and two receivers.
Description
Invention field
The present invention relates generally to world of cellular telecommunications, be specifically related to executive circuit in single antenna dual mode cellular system and exchange the mechanism of feedback.
Background technology
At present, cellular telephone industry is just experiencing exponential type and is increasing, and this growth is not only in a country, but mondial.In fact, as everyone knows, in the U.S., the adult population being greater than 20 percent does not even have traditional line phones.Except these do not have the people of black phone, in the crowd having black phone, have radio telephone close to the adult population of 90 percent.
Further, in the coverage of traditional circuit phone, cellular use is also in growth.In fact, on average every seven adults only use a cell phone now.On the contrary, in the past, cell phone uses when not having circuit available, or in case of emergency use, and pays and the sales promotion of no-charge call facilitates the remarkable growth that cell phone uses between mobile phone or between friend compared with low carrier rate, family's set meal.Now, come into any public place or mechanism, it has been very common that most people exchanges in use cell phone.
From the middle of last century, just mobile phone or travelling carriage can be used to communicate.But in generation nineteen ninety, propose so-called " 2G " or second generation mobile telephone system, it has started the growth of equipment that we enjoy today and use.The reliability services of audio call and route between these initial stage systems surpassingly provide in many ways.Further, as the skilled person will understand, in order to maintain service quality, there is multiple sequential of being associated with transmission and the reception of speech data and potential request.Such as, circuit switched voice link is in this service quality of guarantee.
Although wireless cellular network technology has continued to provide the improvement relevant with the ability of conduct voice calls, also exist in the sector great demand that is reliable and effectively transmitting grouped data.Therefore, the extra development in high-speed grouped data network does not invariably accompany the development of speech network.A target in the industry draws a more unified solution that reliable voice can be provided to provide again high data rate access.Therefore, common practice arranges a kind of mobile system, it is at a kind of circuit-switched network, such as CDMA20001xRTT, on provide voice communication, and such as, at another kind of network, LTE, on carry out high data rate communication, the service quality of support voice that this another kind of network only provides the data of grouping not provide user to prefer communication.In the near future, the solution of these mixing will be popular in this area.
In order to arrange this hybrid system, the example development agreement that designer's network focused on as two or more common deployment causes the network request interoperability of conflict or two or more common deployment this kind of.
This example of process one class of the present invention, namely in the switching of the high data rate network to circuit-switched voice network that only provide block data communication, so that process calling and incoming call or exhalation or other circuit switching event, and, more particularly, use and set up circuit-swtiched notifications bridge by grouped data " tunnel " (tunnel), these notices are sent to the rear end interaction solution of travelling carriage, how current this switching can be affected.
Specifically, be fall back to circuit-switched network to process incoming call or exhalation and the agreement existed in the high data rate session.The form that much current technology is deferred to " setting up tunnel ", the notification data be wherein associated with calling is encapsulated in the data unit sequence exchanged on a packet data network.Further, the present inventor notices and need specialized hardware and program in whole framework, to provide this ability.
Therefore, need a kind of technology that can obtain or provide the notice of circuit switching event when allowing travelling carriage to communicate on a packet data network, wherein need the message of path and corresponding back-end hardware/software.
Summary of the invention
The present invention is intended to the above-mentioned and other problem, the shortcomings and limitations that solve prior art.The invention provides an a kind of mobile device for providing the notice of circuit switching event, this mobile device comprises circuit switching modulator-demodulator, packet data exchanged modulator-demodulator and antenna.Circuit switching modulator-demodulator, for passing through circuit-switched network transmission circuit swap data.Packet data exchanged modulator-demodulator, for passing through packet data switched network transmitting packet switched data.And antenna, for being connected to this circuit-switched network by circuit-switched wireless link, be connected to this packet data switched network by packet data exchanged wireless link, wherein this antenna comprises a transmitter and two receivers.
One aspect of the present invention relates to a packet data network, and be connected to a mobile device for providing the notice of circuit switching event, this packet data network comprises base station, mobile management unit and gateway.Base station, connects this mobile device, for providing packet data radio link to this mobile device.Mobile management unit, is connected to this base station.And gateway, be connected to this mobile management unit, for providing grouped data, wherein this mobile device comprises a transmitter and two receivers, and this mobile device is connected to a circuit-switched network.
Another aspect of the present invention relates to a method, provides the notice of circuit switching event for mobile device, and this mobile device comprises by circuit-switched network transmission circuit swap data; By packet data switched network transmitting packet switched data; And by an antenna, be connected to this circuit-switched network by circuit-switched wireless link, be connected to this packet data switched network by packet data exchanged wireless link, wherein this antenna comprises a transmitter and two receivers.
Another aspect of the present invention relates to a method, for a packet data network, this packet data network is connected to a mobile device for providing the notice of circuit switching event, this packet data network comprises: connect base station to this mobile device, for providing packet data radio link to this mobile device; Connect mobile management unit to this base station; And this mobile management unit of Connection Service gateway, for providing grouped data, wherein this mobile device comprises a transmitter and two receivers, and this mobile device is connected to a circuit-switched network.
Therefore, the invention provides one does not need to make more improvement to network terminal, reduces cost and the power consumption of terminal simultaneously, carries out the apparatus and method that connection LTE with 3G communicates.
Accompanying drawing explanation
Below with reference to accompanying drawings these and other target of the present invention, Characteristics and advantages are described, in the accompanying drawings:
Fig. 1 is the block diagram that existing single antenna dual mode cellular framework is shown;
Fig. 2 illustrates according to dual mode cellular block architecture diagram of the present invention;
Fig. 3 is the flow chart of the powering method illustrated according to single antenna dual mode cellular mobile device of the present invention, and this flow process can use in the framework of Fig. 2;
Fig. 4 illustrates the flow chart according to single antenna mode mobile terminal beginning call method in CDMA20001x of the present invention, and this flow process can use in the framework of Fig. 2; And
Fig. 5 is the flow chart that single antenna mode mobile terminal frequency according to the present invention connects back the method for LTE, and this flow process can use in the framework of Fig. 2.
Embodiment
Referring now to accompanying drawing, multiple embodiment is described, wherein by identical Reference numeral instruction similar elements herein.In the following description, for ease of explaining, a large amount of detail is given, to provide the complete understanding to one or more embodiment.But, clearly, also described embodiment can be realized without these details.In other example, known features and equipment are shown in block diagram form, so that describe one or more embodiment.
In addition, described below is the various aspects of the application.It should be appreciated that disclosure herein can realize by various ways, any ad hoc structure disclosed herein and/or function are only illustrative.In light of the disclosure herein, those of ordinary skill in the art should be appreciated that aspect disclosed herein can realize independent of any other side, and can combine these aspects two or more in various manners.Such as, use the aspect of any amount set forth can implement device or can be to accomplish method herein.In addition, use other structure, function or the 26S Proteasome Structure and Function except the one or more aspects set forth herein or be different from the 26S Proteasome Structure and Function of the one or more aspects set forth herein, this kind of device can be realized or realize the method.
With reference to the discussion of above-mentioned background technology about CDMA2000, the wireless access 1xRTT circuit-swtiched notifications that provides that is mutual and that use in associated system to be associated technology to travelling carriage or from the signalling that travelling carriage sends, the limitation that in Fig. 1, description is associated with present scheme.Afterwards, with reference to Fig. 2-5, the present invention is described.The present invention does not need to use path and corresponding rear end equipment, is jumped move process and provide the technology sending 1xRTT circuit notice signaling to solve the limitation of current pass technology by frequency of utilization in a mobile station.
Fig. 1 shows current single-antenna dual mode cellular device 100 notifies incoming call or other circuit switching event to dual mode mobile station 101 block diagram by packet data radio link 109.Framework 100 comprises travelling carriage 101, travelling carriage 101 has circuit switching modulator-demodulator 102 and packet data modem 104, circuit switching modulator-demodulator 102 is for the treatment of circuit-switched cellular application, and packet data modem 104 is for the treatment of packet data application.Modulator-demodulator 102 and 104 is baseband modems, and shares an antenna 103, to carry out Signal transmissions by packet data radio link 109 or circuit-switched wireless link 106.Thus travelling carriage 101 is coupled by circuit-switched wireless link 106 and circuit-switched base station 107, and be coupled by packet data radio link 109 and grouped data base station 110.
Circuit-switched base station 107 and wireless switching center 114 are coupled.Wireless switching center 114 and Network Node Interface 112 are coupled.Network Node Interface 112 is coupled with grouping management unit PME116 by packet data link 115.Wireless switching center 114 to from or mail to the calling of public phone exchanges network (publicswitchedtelephonenetwork, PSTN) and event carries out route.Grouping management unit 116 and packet data exchanged center 118 are coupled, packet data exchanged center 118 to from or mail to the data of packet network of such as the Internet and event carries out route.
In operation, the Circuit-switched calling on public phone exchanges network and event are routed to circuit-switched base station 107 by wireless switching center 114.The control that all callings with occurring on circuit-switched wireless link 106 and other event are associated and business are all processed by the circuit switching modulator-demodulator 102 in travelling carriage 101.Similarly, grouped data on the internet and event are routed to and the current specific packet data mobile entity 116 distributing to grouping base station 110 interfaces of travelling carriage 101 by packet data exchanged center 118.The all control be associated with grouped data or other event and business all occur on packet data radio link 109, and are received by antenna 103, and are processed by the packet data modem 104 in travelling carriage 101.
The present invention be more particularly directed to situation about being associated with current two mode field, an example exactly can by the calling of the cdma wireless link 106 treatment circuit exchange such as in code division multiple access (CDMA) 20001xRTT framework and other event and the single antenna dual mode mobile station 101 being processed grouped data and other event by the packet data radio link 109 such as in Universal Terrestrial wireless access network (EUTRAN) framework of evolution.EUTRAN framework is commonly referred to Long Term Evolution (LTE) framework, and also uses this literary style in this article.As those skilled in the art are accessible, CDMA20001xRTT circuit switching framework, or " 1x " framework, well known in the art, for the treatment of circuit-switched call, as audio call, and LTE framework is worldwide known as major deployments now at metropolitan center, as the EV-DO packet data network of current deployment block data communication ability supplement.In addition, those skilled in the art will know that LTE is the network being absorbed in grouped data.That is, LTE does not support the circuit-switched channel such as providing legacy cellular voice to call out.LTE does not provide being called the support that the networking telephone (VoIP) is called out, but one skilled in the art will appreciate that the defect be associated with current voip technology makes routine in travelling carriage 101 use the possibility of VoIP very little.
Example during the present invention can use 1x and LTE to apply and term, because these two kinds of terms are all extensively approved and are used.But, the present inventor notices that scope of the present invention is not limited to 1x and LTE, but expand to and comprise such single antenna dual mode cellular device, one that namely uses in wireless link 109 is used for the incoming call audio call with sequential and quality of service characteristics and the requirement be equal to circuit-switched application or other event that notice travelling carriage 101 is associated with circuit-switched link 106.
In concrete 1x and LTE term, travelling carriage 101 refers to subscriber equipment (userequipment, UE) 101.Grouping management unit 116 refers to mobile management unit (MobilityManagementEntity, MME) 116, is the main access node of LTE network.Mobile management unit 116 interface is to multiple grouped data base station 110, and grouped data base station 110 is also referred to as enode b (eNB) 110.Network Node Interface 112 is S102 interfaces 112, or normally interworking solution (IWS) 112.Interworking solution (IWS) 112 is responsible for the circuit-switched network of such as 1x and LTE network being carried out alternately by tunnel (tunneling) mechanism.Packet data radio link 109 is called LTE-Uu interface 109.Therefore, when grouped data is sent to travelling carriage 101 by packet data network, for the purposes of the present invention, the circuit switching element 102,107,112 shown in framework 100 is idle condition, and antenna 103 is for communicating by packet data link 109.Grouped data be routed to the Internet by packet data exchanged center 118 or from interconnection path by out, through packet data mobile entity 116, through grouped data base station 110, and the grouped data arrived on packet data radio link 109 in travelling carriage 101 adjusts demodulator 104 or sends out from grouped data adjustment demodulator 104.
But, when the circuit switching event of target bit travelling carriage 101, such as call out, when coming in switched wireless center line 114, must must stop as early as possible processing grouped data by packet data radio link notice travelling carriage 101, and fall back to circuit-switched wireless link 106, to continue next step, namely accept this calling.But because circuit switched protocol and packet data protocol are not reciprocity, designer is devoted to provide the technology and scheme that allow this notice to occur.A kind of this kind of technology used in 1x/LTE environment mentioned above sets up tunnel, there is provided notice by the circuit switched data (TCSDATA) 121 in tunnel, confirm and negotiate with the circuit switching parameter that calling accepts to be associated, and fall back to circuit-switched wireless link 106 to be encapsulated into as data division in the lower layer data grouping 120 sending on a packet data network and transmit, these links comprise link 115,119,109.In addition, Circuit-switched notification data 121 usage data divides into groups 120 as path, the parameter exchanged by this tunnel transmission/reception circuit.
Tunnel protocol is defined in E-UTRAN – cdma20001xConnectivityandInterworkingAirInterfaceSpecifi cation, Version2.0, April2011, C.S0097-0, publishedbythe3
rdgenerationPartnershipProject2 (3GPP2) (be after this " the ' 0097Specification); this agreement describes the circuit switching fall-back of single antenna mobile stations machine-processed to 1x, is found in CircuitSwitched (CS) FallbackinEvolvedPacketSystem (EPS); Stage2, Version10.2.1,2013-01-04, TS23.272publishedby3GPP2 (be after this " the ' 272Specification)
Internet interface 112 is rear end equipment elements that specific purpose is installed, and it realizes the interface between wireless switching center 114 and packet data mobile entity 116, and the responsible most of process be associated with the tunnel setting up circuit switched data 121.Path grouping 120 by mobile entity 116 and base station 110 route on link 115,119,109, but only requires the process of data 121 at rear end 101,112 place.With reference to the circuit-switched network of current such as 1xRTT, existing in a large number must by the back-end processing of circuit switching event with the configuration information guaranteed service quality.In 1x, the protocol layer processing these information is link access control (LAC) layer.Packet data modem 104 and grouped data base station 110 also comprise LAC treatment element (not shown), to support to be communicated by the layer border of packet data network.But, in order to be provided the notice of circuit-switched call and other event by packet data network, in internet interface 112 and packet data modem 104, all need LAC (TLAC) the layer treatment element in tunnel.Therefore, packet data modem 104 comprises TLAC processor 105, and internet interface 112 comprises TLAC processor 113.These processors 105,113 hereinafter will be described, processor 105,113 performs the LAC layer process required in packet data modem 104 and internet interface 112 respectively, to provide the notice of circuit-switched call and other event by packet data network.Certainly, the basic goal due to internet interface 112 is that circuit-switched network is connected to packet data network, so it must process LAC layer information subsequently.In fact, the sole purpose of internet interface 112 is the paths being provided circuit switched data by packet data network.
Those skilled in the art will find, the hardware and software be associated with the path information about circuit-switched call on a packet data network and event is limited and is troublesome.Require special equipment, such as, internet interface 112, to come by grouped data path by Circuit-Switched Data link to travelling carriage 101, and therefore, the present inventor observes these equipment and adds power consumption and the reliability reducing communication system entirety.
In existing communication construction, commonly two kinds of 1x and LTE hybrid solutions.The first is exactly simultaneous voice LTE(SimultaneousVoiceandLTELongTermEvolution, SV-LTE), this is a kind of protocol and standard that mobile phone can be made simultaneously to use voice-and-data business.Particularly, when speech network is CDMA20001xRTT, data network is LTE(4G) network.In the subscriber equipment of simultaneous voice LTE, be equipped with two cover transmitter and receivers, that is, two cover transmitters and receiver are independently arranged in a user terminal.User can be connected to LTE network and CDMA20001x network simultaneously.Owing to being two cover receive-transmit systems, the those of ordinary skill in this field is appreciated that, needs two cover baseband processor and corresponds to two cover receive-transmit systems.In this solution, LTE network provides data service, and 1x provides speech business, only needs user terminal to carry out adaptive Revision and supplement.For LTE network and 1x network, the program without any need for amendment and the increase of any element, no matter be on equipment or agreement aspect.Therefore, the excuse that network support does not need between 1x and LTE yet is not therefore needed.But the shortcoming of this scheme is needs two overlaps independently receive-transmit system, therefore cause cost and power will far away higher than common user terminal.
Another kind of solution is circuit switching fall-back (CSFB, CircuitSwitchFallBack), or evolved circuit switching fall-back.In this solution, only need a set of transmitter and receiver, also referred to as single antenna or single antenna.Compared with voice synchronous LTE, this scheme needs network interface support, such as S-102 interface.LTE only provides data, services, when user initiates or receive the calling of 1x network, sends a notice, make subscriber equipment switch back to circuit commutative field and process this calling by s-102 interface to subscriber equipment.The program needs the network interface between the support of network terminal and 1x and LTE.No matter shortcoming switches back LTE network after answering call or end of calling, the reaction speed of subscriber equipment is lower.
The present invention is by providing transmission and reception circuit switching technology to overcome above-mentioned and other problem in bimodulus single antenna mobile terminal.This technology of full implementation in a mobile station, thus alleviate the demand to internet interface 112.Below with reference to Fig. 2-5, the present invention is described.
Fig. 2 is the system block diagram of having set forth a single antenna dual mode cellular device 200 according to one embodiment of the invention.Similar to device in Fig. 1 100, according to the solution of the present invention, device 200 is used single antenna dual mode mobile station 201 to be completed by packet data radio link 209 and circuit-switched wireless link 206 and sends and receive.Single antenna dual mode cellular device 200 is for the calling that will receive or other circuit switching event notice dual mode mobile station 201, and the frequency channel digging technology discussed before not needing to use.
In one embodiment of the invention, single antenna is different from the single antenna in circuit switching fall-back mentioned above.Herein, single antenna comprises a transmitter and two receivers.A transmitter is shared by LTE network and 1x network, and two receivers distribute to LTE network and 1x network respectively, makes user terminal can receive the business service of LTE simultaneously at the beep-page message of the second radio frequency unit reception CDMA20001x at the first radio frequency unit.Certainly, at some time, two receivers all can distribute to LTE network or 1x network, and this depends on the setting of user.In some cases, when LTE network all distributed to by two receivers, the beep-page message of 1x network may be missed or abandon.
In double reception pattern, hardly in two receivers bearer data transmission business simultaneously, because data transmission service needs uplink and downlink two links, not too can use at the wireless terminal of single reflector.But a receiver capture-data, it is very general that this way of beep-page message is monitored in another reception area.Person skilled in art is appreciated that, the priority monitoring the message of 1x control channel is higher than the data of LTE network.Because often audio call is more important than business service, so it is acceptable that the transmission performance of part LTE beep-page message is degenerated.
The frequency that the present invention uses is jumped the technology of moving and can be realized identical function and not need to increase special rear end equipment support at Network Node Interface 112.Device 200 comprises travelling carriage 201, and travelling carriage 201 comprises the circuit switching modulator-demodulator 202 for the treatment of circuit-switched cellular application, and for the treatment of the packet data modem 204 of packet data application.Modulator-demodulator 202,204 is that a single antenna 203 shared by baseband modem, this single antenna 203 is for the signal of transmitting grouped data wireless link 209 or circuit-switched wireless link 206. and travelling carriage 201 for being connected to a circuit-switched base station 207 by circuit-switched wireless link 206, and is connected to a grouped data base station 210. by packet data radio link 209
Circuit-switched base station 207 is connected to wireless switching center 214. compared with the device 100 in Fig. 1, the present invention does not need Network Node Interface 112. wireless switching center 214 by public phone exchanges network (publicswitchedtelephonenetwork, PSTN) route (route) calling and event. in order to send and receive grouped data, grouping management unit 216 (packetizedmanagemententity, PME) a packet data exchanged center 118(packetizeddataswitchingcenter is connected to, PDSC), and by packet data network such as internet route data and event.
In operation, circuit-switched call is processed by the circuit switching modulator-demodulator 202 in travelling carriage 201 with the event control that all callings or other events with occurring in circuit-switched wireless link 206 are relevant to circuit-switched base station 207. and business by wireless switching center 214 route (route) calling by public phone exchanges network (PSTN) with event.Similar, the grouped data and the event that occur in internet are routed to a grouping management unit 216 by packet data exchanged center 218, grouping management unit 216 have interface to be connected to just to distribute to the grouping base station 210. of travelling carriage 201 all with occur in packet data radio link 209 and the calling received by antenna 203 or the relevant control of other events and business process by the packet data modem 204 in travelling carriage 201.
One embodiment of the present of invention can be used in some specific existing dual mode system configuration surroundings, such as single antenna dual mode mobile station 201 can in the switched call of cdma wireless link processing circuit and other events, this cdma wireless link is found in CDMA20001xRTT system, process grouped data and other events by packet data radio link 209 simultaneously, this packet data link is found in Universal Terrestrial wireless access network (the EvolvedUniversalMobileTelecommunicationsSystemTerrestria lRadioAccessNetwork of evolution, EUTRAN), such as Long Term Evolution communication technology LTE.Although that discussed herein is 1X and LTE, the present inventor notices other data protocols that the present invention also can be applicable to know or other communication technologys.Certainly, the present inventor notices that category of the present invention should not be only limitted to 1x and LTE, and can be applied to when receiving the calling relevant with circuit-switched link 206 or other events, use wireless link 209 to notify travelling carriage 201, event and the quality requirement of these callings or other events are only directed to circuit-switched application.
Grouping management unit 216 is connected with multiple grouped data base station 210, wherein grouped data is exchanged by packet data radio link 209, in this application, and the circuit switching module 202 of display in device 200,207,214 to be grouped when data link 209 takies at antenna 203 and to be in idle condition.Grouped data is routed to internet by grouping management unit 216 from packet data exchanged center 218, or be routed to packet data exchanged center 218 from internet, and by packet data radio link 209 from/to the base band packet data modem 204. in travelling carriage 201
Compared with existing device 100, when a circuit-swtiched notifications request, include but not limited to, the registration request such as produced when travelling carriage 201 sends a calling, or after a calling received by travelling carriage 201, want end call, move technology according to the frequency jumping that the present invention exchanges the circuit switched operation on wireless link 206 by packet data radio link 209 completing circuit, will describe in detail following.
In one embodiment, send a frequency jumping to grouped data base station 210 and move message, from the time synchronized of packet data radio link 209, depart from (absence) for travelling carriage 201.In another embodiment, synchronizing frequency jumping shift time is saved dormancy with the power of travelling carriage in 1X 201 and wakes up consistent.Travelling carriage 201 comprises a frequency and jumps shift controller 220, for carrying out the synchronous of time reference in packet data network and circuit-switched network, exchange modulator-demodulator 202 and base band packet data modem 204 by baseband circuit, execution frequency jumps shift time and arrangement and the jumping of process frequency move request message and reply.
Fig. 3 has set forth according to one embodiment of the invention the method flow diagram that a single antenna dual mode cellular device powers on, and the method can be applied in the structure described in Fig. 2.In step 201, mobile terminal powers on, in step 303, mobile terminal selects (MMSS, multimodesystemselection) search for 1x network and register according to multimode system, and multimode system is selected to be defined by user and operator.In step 305, mobile terminal to search LTE network is also registered.After the access that mobile terminal completes 1x network and LTE network.Mobile terminal enters idle turntable and Waiting for Call or other times.Herein, mobile terminal is respective registration/be linked into wireless access network.In one embodiment, higher priority is enjoyed in the access of 1x network.
Fig. 4 is the flow chart of having set forth the caller of double reception single antenna mobile terminal according to one embodiment of the invention, and the method can be applied in the structure described in Fig. 2.
In step 1, mobile terminal or the Universal Terrestrial wireless access network (evolveduniversalterrestrialradioaccessnetwork, E-UTRAN) making subscriber equipment be connected to the evolution of LTE, connect enrollment process with reference to figure 3, certainly, user terminal has been connected to 1xRTT circuit domain.
In step 2, mobile terminal determines whether to need to carry out 1xRTT activity, as responded the 1xRTT paging request received, initiating mobile terminal caller, performing orientation management signaling or again registering.These decisions can be determined by user or user terminal.
In step 3, mobile terminal sends an expansion service request (ExtendedServiceRequest) to mobile management unit, and expansion service request is the instruction of a kind of circuit switching fall-back.What show in figure is that mobile terminal is in active state at LTE, and certain this situation is equally applicable to mobile terminal is in idle condition situation at LTE.
In step 4, mobile management unit sends the S1-AP message comprising circuit switching fall-back instruction and informs that LTE mobile terminal will switch back to 1xRTT.
In step 5, E-UTRAN triggers wireless heterogeneous networks (raidoresourcecontrol) release connection and carry out step 6, and E-UTRAN does not comprise any directional information again to user terminal.
Atstep6.E-UTRANsendsanS1UEContextReleaseRequest (Cause) messagetotheMME.CauseindicatesthattheS1UEContextReleasew ascausedbyCSfallbackto1xRTT. is in step 6, E-UTRAN sends a S1 content user terminal releasing request (S1UEContextReleaseRequest, Cause) message is to mobile management unit, and S1 content user terminal releasing request represents that instruction S1 content user terminal release circuit exchanges and falls back to 1xRTT.
In step 7, mobile management unit send content user terminal to suspended state and send one hang up request message to gateway, require evolved packet system (EPS, EvolvedPacketSystem) carrier wave is hung up, evolved packet system comprises enode b, mobile management unit and gateway.Gateway bears business transmission.The S1-U carrier wave of all evolved packet system carrier waves is discharged by mobile management unit.All GBR carrier waves are set to inactive.S1-U is the interface between EUTRAN and mobile management unit.All GBR carrier waves retain and be labeled as hang-up in gateways.
In step 8, gateway confirms to hang up request message and marks mobile terminal for hanging up, and is that, when mobile terminal is labeled as hang-up, gateway does not send downlink data notification message to mobile management unit when downlink data arrives gateway.
In step 9, the S1 content user terminal release of E-UTRAN.
Fig. 5 sets forth according to one embodiment of the invention the flow chart that double reception mobile terminal turns back to LTE, and the method can be applied in the structure described in Fig. 2.
In step 1, user terminal sends a NAS message, such as service request or tracing section updating (TrackingAreaUpdate, TAU)
In step 2, when content user terminal in mobile management unit represents that user terminal is suspended state, mobile management unit sends a Restart Request message such as IMSI and, to gateway, requires the carrier wave reconnecting to evolved packet system.
In step 3, gateway confirms Restart Request and empties the suspended state of mobile terminal.
In step 4, process NAS message.
In one embodiment of the invention, when the communication with LTE is in idle condition, mode mobile terminal monitors paging time-slot or the calling time of each access technology.When be connected to LTE go forward side by side Serial Communication time, mobile terminal uses second radio frequency unit monitoring 1x paging time-slot.When 1x does not respond, then paging is not had to match.Second radio frequency unit can be distributed to LTE by mobile terminal.When 1x responds, mobile terminal can carry out the calling procedure described in Fig. 4.
Be appreciated that when replying 1x calling, what have that some process LTE connects supplements, and wherein 1x calling comprises mobile terminal caller and called, registration, short message or and other apply relevant data burst.When LTE is in idle condition, mobile terminal does not need to notify that LTE system terminal will be switched to 1x system process 1x and call out.When LTE is in connection status, mobile terminal needs notice LTE terminal will be switched to 1x calling and LTE connects and will be suspended.When user terminal is in 1x calling, the LTE module of mobile terminal will enter into power saving mode.
It should be appreciated that these all similar terms are relevant to suitable physical quantity, and just use the appropriate label that these physics is managed.Unless illustrated especially, or significantly discuss, the term that " process ", " estimation ", " calculating ", " judgement " or " display " etc. are similar, the action of the computer system referred to, a microprocessor, a CPU or similar computing electronics and process, physical quantity, electricity in its operation register of computer system and memory, in order to convert other data similar to physical quantity in computer system memory, register or other storage device, conveyer or display unit to.
In addition, software realization mode of the present invention is general at program storage media or the coding on other kenel transfer medium.Program storage media may be electronic component (as read-only memory, flash ROM, EPROM), random access memory (floppy disk or hard disk) or optics (as a read-only optical disc (CD-ROM)), and may can only be read or arbitrary access.Similarly, transmission medium may be metal wire, twisted-pair feeder, coaxial cable, optical fiber, or some other existing transmission mediums.The present invention is not defined in these areas.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention; those skilled in the art under the premise without departing from the spirit and scope of the present invention, can do some changes and retouching, and therefore protection scope of the present invention is as the criterion with claim of the present invention.
Claims (23)
1. a mobile device is for providing the notice of circuit switching event, and this mobile device comprises:
Circuit switching modulator-demodulator, for passing through circuit-switched network transmission circuit swap data;
Packet data exchanged modulator-demodulator, for passing through packet data switched network transmitting packet switched data; And
Antenna, for being connected to this circuit-switched network by circuit-switched wireless link, is connected to this packet data switched network by packet data exchanged wireless link,
Wherein this antenna comprises a transmitter and two receivers, and makes this mobile device exchange event at the second receiver receiving circuit while the first receiver receives packet switched data,
Wherein when this mobile device powers on, this mobile device is searched for this circuit-switched network and is carried out being registered in this circuit-switched network before this packet data switched network of search.
2. mobile device as claimed in claim 1, wherein at least one this receiver is connected to this circuit switching modulator-demodulator, and this transmitter is connected to this circuit switching modulator-demodulator and this packet data exchanged modulator-demodulator simultaneously.
3. mobile device as claimed in claim 1, wherein this mobile device is when receiving at least one following circuit switching event, sends an expansion service request:
The circuit-switched network of new access;
Beep-page message;
The calling initiated by mobile device;
Orientation management signaling; And
Re-registration.
4. mobile device as claimed in claim 1, wherein this packet data switched network triggers this packet data exchanged wireless link release connection.
5. mobile device as claimed in claim 4, more comprise the connection of this mobile device and get back to this packet data switched network, this mobile device sends a message to this packet data switched network, when in the list of this mobile device in this packet data switched network, this packet data switched network sends one and restarts connection request and distribute this packet data exchanged wireless link to this mobile device, and wherein this list represents that this mobile terminal is suspended.
6. mobile device as claimed in claim 1, when this mobile device is connected to this packet data switched network, packet data exchanged wireless link is hung up and is processed arbitrary following circuit switching event or its combination by this mobile device of this packet data switched network of this mobile device notification:
Mobile device caller;
Mobile device is called;
Registration; And
Short message.
7. a packet data switched network, be connected to a mobile device for providing the notice of circuit switching event, this packet data switched network comprises:
Base station, connects this mobile device, for providing packet data exchanged wireless link to this mobile device;
Mobile management unit, is connected to this base station; And
Gateway, is connected to this mobile management unit, for providing grouped data,
Wherein this mobile device comprises a transmitter and two receivers, and this mobile device exchanges event at the second receiver receiving circuit while the first receiver receives grouped data, and this mobile device is connected to a circuit-switched network,
Wherein a circuit-switched wireless link distributed to by least one receiver, and when this mobile device powers on, this mobile device is searched for this circuit-switched network and carried out being registered in this circuit-switched network before this packet data switched network of search.
8. packet data switched network as claimed in claim 7, wherein this packet data switched network receives an expansion service request from this mobile device and triggers this packet data exchanged wireless link release connection.
9. packet data switched network as claimed in claim 7, wherein this mobile management unit sends a circuit switching fall-back instruction and informs that this mobile device of this base station is connected to this circuit-switched network.
10. packet data switched network as claimed in claim 7, wherein this base station triggers discharges this packet data exchanged wireless link, and sends a content releasing request to this mobile management unit.
11. packet data switched network as claimed in claim 10, wherein this mobile management unit sends a mobile device content according to this content releasing request, and sends this gateway releasing request.
12. packet data switched network as claimed in claim 11, wherein this gateway confirms this releasing request, discharge to should mobile terminal carrier wave and this mobile terminal is labeled as hang-up.
13. 1 kinds of methods that the notice of circuit switching event is provided for mobile device, the method comprises:
By circuit-switched network transmission circuit swap data;
By packet data switched network transmitting packet switched data; And
By an antenna, this circuit-switched network is connected to by circuit-switched wireless link, this packet data switched network is connected to by packet data exchanged wireless link, wherein this antenna comprises a transmitter and two receivers, and this mobile device exchanges event at the second receiver receiving circuit while the first receiver receives packet switched data
Wherein when this mobile device powers on, this mobile device is searched for this circuit-switched network and is carried out being registered in this circuit-switched network before this packet data switched network of search.
14. methods as claimed in claim 13, wherein at least one this receiver is connected to this circuit switching modulator-demodulator, and this transmitter is connected to this circuit switching modulator-demodulator and this packet data exchanged modulator-demodulator simultaneously.
15. methods as claimed in claim 13, wherein this mobile device is when receiving at least one following circuit switching event, sends an expansion service request:
The circuit-switched network of new access;
Beep-page message;
The calling initiated by mobile device;
Orientation management signaling; And
Re-registration.
16. methods as claimed in claim 13, more comprise: when after this packet data exchanged wireless link release connection, this mobile device connects gets back to this packet data switched network, this mobile device sends a message to this packet data switched network, when in the list of this mobile device in this packet data switched network, this packet data switched network sends one and restarts connection request and distribute this packet data exchanged wireless link to this mobile device, and wherein this list represents that this mobile terminal is suspended.
17. methods as claimed in claim 13, when this mobile device is connected to this packet data switched network, packet data exchanged wireless link is hung up and is processed arbitrary following circuit switching event or its combination by this mobile device of this packet data switched network of this mobile device notification:
Mobile device caller;
Mobile device is called;
Registration; And
Short message.
18. 1 kinds of methods for a packet data switched network, this packet data switched network is connected to a mobile device for providing the notice of circuit switching event, and the method comprises:
Connect base station to this mobile device, for providing packet data exchanged wireless link to this mobile device;
Connect mobile management unit to this base station; And
This mobile management unit of Connection Service gateway, for providing grouped data,
Wherein this mobile device comprises a transmitter and two receivers, and this mobile device exchanges event at the second receiver receiving circuit while the first receiver receives grouped data, and this mobile device is connected to a circuit-switched network,
Wherein a circuit-switched wireless link distributed to by least one receiver, and when this mobile device powers on, this mobile device is searched for this circuit-switched network and carried out being registered in this circuit-switched network before this packet data switched network of search.
19. methods as claimed in claim 18, more comprise and receive an expansion service request from this mobile device and trigger this packet data exchanged wireless link release connection.
20. methods as claimed in claim 18, more comprise the instruction of transmission one circuit switching fall-back and inform that this mobile device of this base station is connected to this circuit-switched network.
21. methods as claimed in claim 18, more comprise and trigger this packet data exchanged wireless link of release, and send a content releasing request to this mobile management unit.
22. methods as claimed in claim 21, wherein this mobile management unit sends a mobile device content according to this content releasing request, and sends this gateway releasing request.
23. method as claimed in claim 22, wherein this gateway confirms this releasing request, discharge to should mobile terminal carrier wave and this mobile terminal is labeled as hang-up.
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| CN201610183576.5A CN105848307B (en) | 2013-03-29 | 2013-03-29 | Support the mixing apparatus and system of LTE and 3G communication standard |
| CN201310109901.XA CN103152840B (en) | 2013-03-29 | 2013-03-29 | Support mixing apparatus and the system of LTE and 3G communication standard |
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| EP2224671B1 (en) * | 2009-02-27 | 2016-05-25 | Alcatel Lucent | Method, apparatus and computer program for merging telephony services over circuit switched network and packet switched data network |
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| CN101641886A (en) * | 2007-03-23 | 2010-02-03 | 三星电子株式会社 | Handover apparatus and method in heterogeneous wireless communication system |
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| WO2012103034A1 (en) * | 2011-01-25 | 2012-08-02 | Qualcomm Incorporated | Mobile device requests of non-communication time periods (dtx, drx) to a wireless communication network |
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| CN103152840A (en) | 2013-06-12 |
| CN105848307A (en) | 2016-08-10 |
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