CN100496003C - Method and system for transferring state in long-term deduction network - Google Patents
Method and system for transferring state in long-term deduction network Download PDFInfo
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Abstract
This invention relates to mobile communication system. It discloses long-term evolution network state migration method and its system, this can makes a effective state migration according to user equipment volume of business quickly. In this invention, through the use of volume of business to measure control information and events measuring mechanism, it makes the side network immediately know user equipment cached data meet the predetermined threshold, so it ensures the rapid relocation of the state to achieve. Let the reported door limit zero, using 4a, 4b incident to realize the testing whether there is deactivate data in user equipment. UE reports the 4b incident at no time in the absence of data sending. After the side network receive this incident, if no data is distributed to the UE in a long period of time, it will change to 'RRC_IDLE' state and 'NAS_IDLE' state. UE reports 4a incident timely if data are sent. According to the incident, the side network changes to the 'RRC_CONNECTED' state and 'NAS_ACTIVE' state.
Description
Technical field
The present invention relates to mobile communication system, particularly the state transition technology in Long Term Evolution (Long Term Evolution is called for short " the LTE ") network.
Background technology
Third generation partner program (3rd Generation Partnership Project, be called for short " 3GPP ") promoted the standardization effort of 3G technology as the vital tissue of moving communicating field, since 3GPP issue universal mobile telecommunications system (Universal Mobile Telecommunications System, abbreviation " UMTS ") since first commercial version R99 (Release 99), the 3GPP organizational member continues network is improved, in the hope of obtaining more network characteristic and better network performance.
Along with the development of mobile communication technology, 3G technology is also in constantly development evolution.Many to flow and data service such as the video delaying having relatively high expectations, Streaming Media and download etc. need system that higher transmission rate and shorter time delay are provided, in order further to improve network performance, 3GPP has issued R5 (Release5) version in 2003, introduced high speed downlink packet access (High Speed Downlink PacketAccess, be called for short " HSDPA ") technology, and issued R6 (Release 6) version in 2005, introduced high speed uplink packet access (High Speed Uplink Packet Access, be called for short " HSUPA "), make the wireless access performance of WCDMA obtain great lifting.
HSDPA has integrated a series of new wireless access technologys, wherein mainly comprise and mix automatic repeat requests (Hybrid Auto Repeat reQuest, be called for short " HARQ "), adaptive coding and modulation (Adaptive Modulation and Coding, be called for short " AMC ") and based on the fast uplink dispatching technique of base station, make the descending throughput and the peak rate of whole system obtain very big lifting, 2Mbps from R99 has brought up to 14Mbps, thereby has improved the spectrum efficiency of system.HSDPA adopts shorter Transmission Time Interval (Transmission Timing Interval in addition, be called for short " TTI ") and frame length (2ms or 10ms), its the shortest TTI 10ms from R99 has been reduced to 2ms, the improvement of coupling system framework and realization, effectively reduce the connection and the propagation delay time of wireless access network, improve user's impression of wireless traffic.Be similar to HSDPA, HSUPA adopts HARQ and equally based on the fast uplink dispatching technique of base station, the up throughput and the peak rate of system have been improved, 2Mbps from R99 brings up near 6Mbps, and use shorter TTI and frame length (2ms or 10ms) simultaneously to realize quick self-adapted control, its the shortest TTI also has been reduced to 2ms, for the time delay that reduces Radio Access Network provides the foundation.
Along with R5, the introducing of technology such as the HSDPA of R6 version, HSUPA and MBMS and perfect, the UMTS network has been finished evolution in mid-term (Medium Term Evolution is called for short " the MTE ") stage.The network performance that HSDPA and HSUPA brought promotes the business demand that can satisfy substantially before 2010.In order to guarantee the competitiveness of more longer time (as 10 years or longer), 3GPP has started LTE since the second half year in 2004, as shown in Figure 1.Be different from propose among the MTE existing network is not made the purpose optimized as much as possible under the too cataclysmal prerequisite, LTE then is conceived to the innovation that existing network carries out some essence is improved the systematic function of Radio Access Network.
At present just under discussion about the standard operation of LTE system, the down physical layer access technology of preliminary definite LTE system is OFDM multiple access (Orthogonal Frequency DivisionMultiple Access, be called for short " OFDMA "), the upstream physical layer access technology is the multiplexing multiple access of single carrier frequency division (Single Carrier-Frequency Division Multiple Access is called for short " SC-FDMA ").The LTE system has done a large amount of innovations on the existing universal mobile telecommunications system basis of (Universal MobileTelecommunications System is called for short " UMTS ").A main change is, in the LTE system, do not re-use the network configuration of NodeB, RNC and CN three node layers, but it is simplified to the structure of two-layer node, wherein the function of RNC is split to NodeB, the NodeB (E-NodeB) that is called evolution, and such as in the IAD upper level node of (access GateWay is called for short " aGW ").The protocol stack of each entity of chain of command as shown in Figure 2 in the LTE system, each entity (comprising UE, E-NodeB and aGW) is under different situations, at Non-Access Stratum (Non-Access Stratum, abbreviation " NAS "), Radio Resource control (Radio Resource Control, be called for short " RRC ") layer and media interviews control (Medium Access Control, abbreviation " MAC ") layer has different states respectively, each entity of chain of command is as shown in table 1 at the state of each layer, wherein, the information that contained of RRC state as shown in Figure 3.Each entity need carry out the migration of state under different situations.
Table 1
In actual applications, there is following problem in such scheme: prior art can't be carried out state exchange to each entity in the LTE network.
Cause the main cause of this situation to be, compare with existing WCDMA system, very big variation has taken place in the network configuration of LTE, and for its many entities in the network configuration have increased different states newly, existing technology can't be applicable to the LTE network.
Summary of the invention
In view of this, main purpose of the present invention is to provide state transfer method and system thereof in a kind of long-term evolving network, makes to carry out effective state transition according to the traffic carrying capacity of subscriber equipment apace.
For achieving the above object, the invention provides state transfer method in a kind of long-term evolving network, comprise following steps:
Network side sends the message of service volume measurement and control to subscriber equipment;
After described subscriber equipment is received described message, according to the outgoing data amount triggering measuring business volume reporting events of current cache;
Described network side is according to the state transition of this subscriber equipment of measuring business volume Event triggered of receiving at network side.
Wherein, after described subscriber equipment is received the message of described traffic measurement control, when the outgoing data amount of buffer memory in this subscriber equipment reports first incident to network side during greater than first thresholding, when the outgoing data amount of buffer memory in this subscriber equipment reports second incident to network side during smaller or equal to second thresholding.
In this external described method, described first incident is the 4a incident;
Described second incident is the 4b incident.
In this external described method, described first thresholding and second thresholding are zero.
In this external described method, send the message of service volume measurement and control and the network equipment that receives from the measuring business volume incident of subscriber equipment is the evolution base station node to subscriber equipment at described network side.
In this external described method, send the message of described service volume measurement and control by the radio resource control layer in the described evolution base station node, and by this radio resource control layer according to carrying out the migration of RRC status from the measuring business volume incident of described subscriber equipment.
In this external described method, after described evolution base station node is received first incident from described subscriber equipment, if this subscriber equipment is in " RRC_IDLE " state at network side radio resource key-course, then migration is " RRC_CONNECTED " state, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_ACTIVE " state at the state of network side Non-Access Stratum from " NAS_IDLE " state transition with this subscriber equipment;
After described evolution base station node is received second incident from described subscriber equipment, if it is the zero duration to surpass preset value that the needs of network side buffer memory are issued the outgoing data amount of this subscriber equipment, and this subscriber equipment is in " RRC_CONNECTED " state at network side radio resource key-course, then migration is " RRC_IDLE " state, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_IDLE " state at the state of network side Non-Access Stratum from " NAS_ACTIVE " state transition with this subscriber equipment.
In this external described method, after described subscriber equipment and IAD are received the notice of state transition of described evolution base station node, the executing state migration operation, and this evolution base station node responded.
In this external described method, the outgoing data amount of described subscriber equipment and network side is the data volume that is buffered in wireless chain control layer.
The present invention also provides state transition system in a kind of long-term evolving network, comprises:
Send the network equipment of the message of service volume measurement and control to subscriber equipment;
After receiving described message, trigger the subscriber equipment of measuring business volume reporting events according to the outgoing data amount of current cache;
According to the network equipment of the measuring business volume Event triggered subscriber equipment of receiving in the state transition of network side.
Wherein, after described subscriber equipment is received the message of described traffic measurement control, if the outgoing data amount of buffer memory then reports first incident to network side greater than zero in this subscriber equipment, if the outgoing data amount of buffer memory equals zero in this subscriber equipment, then report second incident to network side.
In this external described system, described network equipment is the evolution base station node;
After described evolution base station node is received first incident from described subscriber equipment, if this subscriber equipment is in " RRC_IDLE " state at network side radio resource key-course, then migration is " RRC_CONNECTED " state, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_ACTIVE " state at the state of network side Non-Access Stratum from " NAS_IDLE " state transition with this subscriber equipment;
After described evolution base station node is received second incident from described subscriber equipment, if it is the zero duration to surpass preset value that the needs of network side buffer memory are issued the outgoing data amount of this subscriber equipment, and this subscriber equipment is in " RRC_CONNECTED " state at network side radio resource key-course, then migration is " RRC_IDLE " state, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_IDLE " state at the state of network side Non-Access Stratum from " NAS_ACTIVE " state transition with this subscriber equipment.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, by utilizing service volume measurement and control message and measuring business volume case mechanism, making that in a single day the outgoing data amount of buffer memory meets the predetermined threshold network side in the subscriber equipment can know at once, so guaranteed the quick realization of state transition.
By reporting thresholding to be decided to be zero, utilize 4a, 4b incident to realize whether having in the subscriber equipment data to wait the detection of sending out, because 4a, 4b incident are the incidents of standard, and the thresholding that reports that 4a, 4b incident be set also is easy to, so that the present invention program has realized is simpler.
Because realize the issuing of message of service volume measurement and control by E-NodeB, the reception of measuring business volume incident, and E-NodeB and UE are direct-connected by Radio Link, so time delay is less.
Because UE in time reports the 4b incident when not having data to send, after network side is received this incident, to not issue this UE if there are data in a long time, then be transitted towards " RRC_IDLE " state and " NAS_IDLE " state, so can reach the effect of when not having data transmission, saving UE power consumption and network side resource.
Because UE in time reports the 4a incident when having data to send, network side is transitted towards " RRC_CONNECTED " state and " NAS_ACTIVE " state according to this incident, so allocation radio resource and transfer resource in time, the data that send that clamp on are in time sent, reach and reduce the purpose of waiting for time delay.
Because when E-NodeB notified UE and aGW to carry out state exchange, UE and aGW will confirm, so guaranteed the reliability of state exchange, have avoided false triggering.
Description of drawings
Fig. 1 is the evolution planning of UMTS network in the prior art;
Fig. 2 is a chain of command protocol stack in the prior art;
Fig. 3 is an E-UTRAN RRC protocol status in the prior art;
Fig. 4 is according to state transfer method flow chart among the LTE of first embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Core of the present invention is, network side is by sending service volume measurement and control message, make UE trigger corresponding business measurement amount incident when the outgoing data amount of buffer memory meets predetermined threshold, network side is according to the state transition of this UE of measuring business volume Event triggered that receives at network side.
According to inventive principle state transfer method among the first embodiment of the invention LTE is described below.
As shown in Figure 4, in step 401, E-NodeB sends service volume measurement and control message at rrc layer to UE.
Then enter step 402, after UE receives this service volume measurement and control message, according to the outgoing data amount of its buffer memory, promptly be buffered in Radio Link control (Radio Link Control is called for short " the RLC ") data volume of layer of this UE and the relation of dependent threshold parameter and reported event.Two dependent threshold are arranged in service volume measurement and control message, be called first thresholding and second thresholding here, first thresholding can be arranged to different values according to actual needs with second thresholding.After UE receives this service volume measurement and control message, if the outgoing data amount that is buffered in rlc layer is greater than first thresholding then report the 4a incident, if the outgoing data amount that is buffered in RLC is smaller or equal to second thresholding then report the 4b incident.In the present embodiment, obtain the information whether UE has data to send, first thresholding and second all are made as zero in order to utilize service volume measurement and control message.
When the outgoing data amount that is buffered in RLC greater than zero the time, promptly UE is current when having data to transmit, and enters step 403, UE reports the 4a incident to network side.
When the outgoing data amount that is buffered in RLC equalled zero, promptly UE was current when not having data to transmit, and enters step 404, and UE reports the 4b incident to network side.Because 4a, 4b incident are the incidents of standard, and the thresholding that reports that 4a, 4b incident be set also is easy to, so that the present invention program implements is more or less freely.
Behind step 403 or 404, then enter step 405, the rrc layer of E-NodeB receives the measuring business volume incident from UE, judges that this measuring business volume incident is 4a incident or 4b incident.If what rrc layer received is the 4a incident, showing that this UE is current has data to need to send, and then enters step 406, otherwise if rrc layer receives is the 4b incident, showing that this UE is current does not have data to need to send, and then enters step 409.And because of issuing of the message that realizes service volume measurement and control by E-NodeB, and the reception of measuring business volume incident, and E-NodeB and UE are direct-connected by Radio Link, so time delay is less.
When E-NodeB receives the 4a incident, enter in the step 406, E-NodeB judges that further the current rrc layer at network side of this UE is to be in " RRC_IDLE " state or " RRC_CONNECTED " state, be in " RRC_IDLE " state if this UE is current, then entering step 407, is " RRC_CONNECTED " state in the rrc layer state transition that this UE is current; Otherwise, be in " RRC_CONNECTED " state, then process ends if this UE is current.
In step 407, E-NodeB is except the state transition that this UE is current is " RRC_CONNECTED " state, also notify this UE to do the corresponding state migration, promptly notify this UE that the state of its rrc layer is " RRC_CONNECTED " state from " RRC_IDLE " state transition, and correspondingly notify aGW that this UE is " NAS_ACTIVE " state at the state of network side NAS from " NAS_IDLE " state transition.Thereby can be when UE have data to transmit, allocation radio resource and transfer resource in time send the data that send that clamp in time, reach and reduce the purpose of waiting for time delay.
Then enter step 408, after this UE and aGW receive notice from the state transition of E-NodeB, carry out corresponding state transition operation respectively, UE is " RRC_CONNECTED " state with the state of its rrc layer from " RRC_IDLE " state transition, and aGW is " NAS_ACTIVE " state at the state of network side NAS from " NAS_IDLE " state transition with this UE.And this UE and aGW respond this E-NodeB respectively, return corresponding response message.
When E-NodeB receives the 4b incident, enter step 409, E-NodeB judges further it is the zero duration whether to have surpassed preset value that the needs of current network side buffer memory are issued the RLC outgoing data amount of this UE, and this UE is in " RRC_CONNECTED " state at the network side rrc layer, if then enter step 410, otherwise, process ends then.
In step 410, rrc layer among the E-NodeB is " RRC_IDLE " state with the state of this UE from " RRC_CONNECTED " state transition, and, notify this UE to do corresponding state transition, and notice aGW be " NAS_IDLE " state at the state of network side NAS from " NAS_ACTIVE " state transition with this UE, thereby reaches when not having data transmission the effect of saving UE power consumption and network side resource.
Then enter step 411, after this UE and aGW receive notice from the state transition of E-NodeB, carry out corresponding state transition operation respectively, UE is " RRC_DLE " state with the state of its rrc layer from " RRC_CONNECTED " state transition, and aGW is " NAS_IDLE " state at the state of network side NAS from " NAS_ACTIVE " state transition with this UE.And this UE and aGW respond this E-NodeB respectively.UE and aGW have guaranteed the reliability of state exchange by returning corresponding response message, have avoided false triggering.
LTE state transition system comprises the network equipment 1 that sends the message of service volume measurement and control to UE in the second embodiment of the invention, trigger the UE of measuring business volume reporting events according to the outgoing data amount of current cache, and trigger the network equipment 2 of UE in the state transition of network side.
Specifically, in the LTE network, send the message of traffic carrying capacity control to UE by network equipment 1, after UE receives this message, outgoing data amount according to current cache triggers the measuring business volume reporting events, if the outgoing data amount of current cache then reports the 1a incident to network side greater than zero, if the outgoing data of buffer memory is zero, then report the 1b incident to network side.Network side is according to the state transition of this UE of measuring business volume Event triggered that receives at network side, as network equipment 2 when receiving the 1a incident, the UE migration of current being in " RRC_IDLE " state is " RRC_CONNECTED " state, and notifies this UE and aGW to do corresponding state transition; When receiving 1b, if the RLC data that network side need send to this UE are the zero time to surpass preset value, then from being " RRC_IDLE " state at the state of rrc layer from " RRC_CONNECTED " state transition, and notify this UE and aGW to do corresponding state transition equally with this UE.Make UE when transfer of data is arranged, can upload incident in time, and when not having data to transmit, as much as possible conserve network resources.
Said network equipment 1, network equipment 2 are logical concept in second execution mode, physically can realize in distinct device, also can realize in same equipment.Network equipment 1, network equipment 2 can have various titles, as long as but have above-mentioned functions and just can realize effect of the present invention, just belong to protection scope of the present invention.Be appreciated that, related function mainly is to send message and trigger state transition in network equipment 1, the network equipment 2, these functions all are not difficult to realize by known technology, are that present prior art does not realize purpose of the present invention by the inventive combination of these functions.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (6)
1. state transfer method in the long-term evolving network is characterized in that, comprises following steps:
Radio resource control layer in the evolution base station node of network side sends the message of service volume measurement and control to subscriber equipment;
After described subscriber equipment is received described message, outgoing data amount according to current cache triggers the measuring business volume reporting events, wherein, when the outgoing data amount of buffer memory in this subscriber equipment reports first incident to network side during greater than first thresholding, when the outgoing data amount of buffer memory in this subscriber equipment reports second incident to network side during smaller or equal to second thresholding;
Radio resource control layer in the described evolution base station node is according to the state transition of this subscriber equipment of measuring business volume Event triggered of receiving at network side, wherein, after first incident of receiving from described subscriber equipment, if this subscriber equipment is in " RRC_IDLE " state at network side radio resource key-course, radio resource control layer in the then described evolution base station node is " RRC_CONNECTED " state with this subscriber equipment in the state transition of network side radio resource key-course, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_ACTIVE " state at the state of network side Non-Access Stratum from " NAS_IDLE " state transition with this subscriber equipment; After second incident of receiving from described subscriber equipment, if it is the zero duration to surpass preset value that the needs of network side buffer memory are issued the outgoing data amount of this subscriber equipment, and this subscriber equipment is in " RRC_CONNECTED " state at network side radio resource key-course, radio resource control layer in the then described evolution base station node is " RRC_IDLE " state with this subscriber equipment in the state transition of network side radio resource key-course, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_IDLE " state at the state of network side Non-Access Stratum from " NAS_ACTIVE " state transition with this subscriber equipment.
2. state transfer method in the long-term evolving network according to claim 1 is characterized in that, described first incident is the 4a incident;
Described second incident is the 4b incident.
3. state transfer method in the long-term evolving network according to claim 1 is characterized in that, described first thresholding and second thresholding are zero.
4. according to state transfer method in each described long-term evolving network in the claim 1 to 3, it is characterized in that, after described subscriber equipment and IAD are received the notice of state transition of described evolution base station node, the executing state migration operation, and this evolution base station node responded.
5. according to state transfer method in each described long-term evolving network in the claim 1 to 3, it is characterized in that the outgoing data amount of described subscriber equipment and network side is the data volume that is buffered in wireless chain control layer.
6. state transition system in the long-term evolving network is characterized in that, comprises:
Send the network equipment of the message of service volume measurement and control to subscriber equipment;
After receiving described message, trigger the subscriber equipment of measuring business volume reporting events according to the outgoing data amount of current cache, after described subscriber equipment is received the message of described traffic measurement control, if the outgoing data amount of buffer memory is greater than zero in this subscriber equipment, then report first incident to network side, if the outgoing data amount of buffer memory equals zero in this subscriber equipment, then report second incident to network side;
According to the network equipment of the measuring business volume Event triggered subscriber equipment of receiving in the state transition of network side, wherein, described network equipment is after first incident of receiving from described subscriber equipment, if this subscriber equipment is in " RRC_IDLE " state at network side radio resource key-course, then described network equipment is " RRC_CONNECTED " state with this subscriber equipment in the state transition of network side radio resource key-course, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_ACTIVE " state at the state of network side Non-Access Stratum from " NAS_IDLE " state transition with this subscriber equipment; After second incident of receiving from described subscriber equipment, if it is the zero duration to surpass preset value that the needs of network side buffer memory are issued the outgoing data amount of this subscriber equipment, and this subscriber equipment is in " RRC_CONNECTED " state at network side radio resource key-course, then described network equipment is " RRC_IDLE " state with this subscriber equipment in the state transition of network side radio resource key-course, and, notify this subscriber equipment to do the corresponding state migration, the notice IAD is " NAS_IDLE " state at the state of network side Non-Access Stratum from " NAS_ACTIVE " state transition with this subscriber equipment;
Described network equipment is the evolution base station node.
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| CN101330698B (en) * | 2007-06-21 | 2012-01-11 | 中兴通讯股份有限公司 | Method and system for reporting measuring case of business volume to a leadership |
| CN102149215B (en) | 2010-02-05 | 2015-12-02 | 华为技术有限公司 | The transmission method of keep-alive information and terminal and the network equipment |
| CN102457946B (en) * | 2010-10-20 | 2014-07-09 | 华为技术有限公司 | Control method of dynamic timeslot reduction mode, device and system |
| CN103684824B (en) * | 2012-09-13 | 2017-09-12 | 华为终端有限公司 | A kind of method and system of reporting events |
| CN104105175B (en) * | 2013-04-06 | 2018-12-04 | 上海诺基亚贝尔股份有限公司 | It is a kind of for optimizing the method and apparatus of the energy consumption efficiency of user equipment |
| KR20190049781A (en) | 2016-09-07 | 2019-05-09 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Method and Apparatus for Determining State of Terminal Device |
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| PS业务变速率功能在包调度算法中的应用. 万冰，李晓峰，彭海涛.中国测试技术，第31卷第1期. 2005 |
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