CN101094510B - Device and method for distributing seeking request to mobile communication system - Google Patents
Device and method for distributing seeking request to mobile communication system Download PDFInfo
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- CN101094510B CN101094510B CN2006101082714A CN200610108271A CN101094510B CN 101094510 B CN101094510 B CN 101094510B CN 2006101082714 A CN2006101082714 A CN 2006101082714A CN 200610108271 A CN200610108271 A CN 200610108271A CN 101094510 B CN101094510 B CN 101094510B
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Abstract
The equipment comprises a control plane device MME of SAE core network and an eNode B of SAE access network. Said MME is set with static IP multicast group; said IP multicast group has a one-to-one corresponding relation with TA; each multicast group has a unique multicast IP address; eNode B is used to monitor the message sent to said multicast IP address and to receive message from said multicast IP address. The invention also reveals a method for delivering paging request to the mobile communication system.
Description
Technical field
The present invention relates to a kind of mobile communication technology, specifically, relate to a kind of Apparatus and method for to the request of mobile communication system distributing seeking.
Background technology
As shown in Figure 1, the core net of the framework of SAE (System Architecture Evolution) system comprises the SGSN in SAE EPC (Evolved Packet Core) and the GPRS core net; The connecting system that SGSN is connected to is UTRAN (UMTS Terrestrial Radio AccessNetwork)/GERAN (GPRS EDGE Radio Access Network).The connecting system that SAE EPC is connected to is Evolved RAN (Radio Access Network), and the base station equipment among the Evolved RAN is eNode B (Evolved Node B).UPE among the SAE EPC (User Plane Entity) is a core net user face equipment, is responsible for the route and the forwarding of user data.MME (Mobility ManagementEntity) is a SAE core network control surface equipment.
When user equipment (UE) (User Equipment) is in the free time during (LTE-IDLE) state, MME carries out the location management of the UE among the Evolved RAN by tracing area TA (Tracking Area), and tracing area TA is a logic region.A TA comprises one or more eNode B.In the paging among the SAE, when descending user data when the Gi interface arrives UPE, be among the Evolved RAN if MME knows UE, and when being in idle condition, MME respectively in UE resides in TA all eNode B send paging requests.
As shown in Figure 2, in the IP unicast technology, each receives object 201,202,203 and creates and send a copy 204,205,206 of data, and sends to each reception object respectively.
As shown in Figure 3, in the SAE prior art, when MME knows that UE resides among a certain TA, when MME receives the paging request, need to send beep-page message to each eNode B respectively, as 301,302,303.After eNode B receives the paging request of MME transmission, send the paging request to UE again.
The ip multicast technology can send to a message all the reception objects in the specific I P multicast group simultaneously, and the reception object in the ip multicast group can carry out the reception of ip multicast message.The ip multicast flow sends to single ip multicast address, but is received and handled by a plurality of IP main frames, and no matter these main frames residing position on the IP internet.A main frame is monitored a specific I P multicast address, and receives all packets that send to this IP address.
In the ip multicast technology, that group main frame of monitoring specific ip multicast address is called an ip multicast group.The member of ip multicast group can be static state or dynamic.The member's of ip multicast group quantity is at least one without limits.The ip multicast group can be crossed over a plurality of network segments.This configuration needs the ip multicast support on the ip router, and requires main frame they can be registered to this router to the wish that receives multicast traffic.Host registration is to use IGMP, as " the Internet IGMP (Internet Group Management Protocol, IGMP) " finish.
In addition, main frame can be to certain ip multicast address transmitted traffic of the ip multicast group that does not belong to correspondence.For the transfer of data of one-to-many, ip multicast is more more efficient than unicast technique.
In the D class address realm of 239.255.255.255, this is set to 1110 by preceding four high orders and defines at 224.0.0.0 in the ip multicast address.(Classless Inter-Domain Routing, CIDR) in the representation, 224.0.0.0/4 is abbreviated as in the ip multicast address at network prefix or CIDR.The multicast address of (224.0.0.0/24) scope is preserved for local subnet from 224.0.0.0 to 224.0.0.255, and the life span in the IP header (Time to Live TTL) can ignore, and they can not transmitted by the ip multicast router.And the multicast address that exceeds 224.0.1.xxx will be multicast the router forwarding.
As shown in Figure 4, multicasting technology is different with unicast technique, and the transmit leg 207 of multicasting technology only sends a copy 208 of data to multicast router 209, and this copy duplicates a copy 210 by multicast router, 211, send to downstream router 212,213 again, be directly connected to reciever 214 up to multicast router, 215,216 o'clock, multicast router was with data trnascription 217,218,218 send to each recipient.Like this, use multicasting technology to carry out the transfer of data of one-to-many, saved the processing load of transmit leg, and reduced the data traffic in the network.
MME adopts unicast technique all eNode B transmission paging requests in the TA of correspondence respectively, has expended the more memory source of MME, has prolonged the paging time delay, has wasted Internet resources.Observe the distribution of MME to the paging request between the eNode B, as can be seen, MME need handle same paging request message several times, expends the more memory source of MME, prolongs the paging time delay.And, in network, need to transmit a plurality of beep-page messages, the waste Internet resources.
Summary of the invention
Technical problem solved by the invention provides a kind of equipment to the request of mobile communication system distributing seeking, uses the ip multicast technology in the SAE system, with saving MME memory source, and the paging efficiency in the raising SAE system.
Technical scheme is as follows:
The chain of command equipment MME from the SAE core net to the equipment of mobile communication system distributing seeking request and the SAE access network base stations equipment eNode B that comprise, it is characterized in that, described MME is provided with static IP multicast group, described ip multicast group and TA are for concerning one to one, the ip multicast group has a unique multicast IP address, the corresponding ip multicast group in multicast IP address; ENode B is used to monitor the message that sends to this multicast IP address, and receives.
Preferably, described MME sends to multicast IP address with the paging request.
Preferably, all the eNode B among the described TA monitor the paging request that sends to described multicast IP address and receive.
Preferably, described eNode B supports the monitoring of ip multicast.
Preferably, described MME need be after setting up TA, before the transmission paging request, sets up a static IP multicast group, and the reception object in the described multicast group comprises all eNode B in the corresponding TA.
Preferably, described ip multicast group is crossed at least one network segment, and the ip router on the described ip multicast group is supported ip multicast, and the wish that described main frame will receive multicast traffic is registered to this ip router, and described host registration uses IGMP.
Preferably, described MME manages at least one TA.
Another one technical problem solved by the invention provides a kind of method to the request of mobile communication system distributing seeking, with saving MME memory source, and the paging efficiency in the raising SAE system.
Method to the request of mobile communication system distributing seeking comprises the steps:
(1) after setting up TA, before the transmission paging request, the corresponding relation of MME static configuration TA and ip multicast group, described ip multicast group and TA concern that one to one the ip multicast group has a unique multicast IP address, the corresponding ip multicast group in multicast IP address;
(2) receive the down user data of issuing UE as UPE, and reside in the SAE connecting system when MME finds this UE, and when being in idle condition, this UE of paging in the residing TA of UE;
(3) MME is according to the residing TA information of this UE, finds out and the multicast IP address of the ip multicast group of this TA correspondence;
(4) MME sends the paging request to this multicast IP address;
(5) the eNode B among the TA monitors and sends to the message of this multicast IP address, and receives.
Further comprise:
(6) eNode B carries out radio call;
(7) UE replys page response to eNode B;
(8) eNode B replys page response to MME;
(9) transmission down user data.
Further, in the step (2), MME and UPE are in a physical entity or separate.
The present invention uses the ip multicast technology in the SAE system, the paging request is once sent to a plurality of eNode B among the EvolvedRAN, and like this, MME can handle the paging to a plurality of eNode B simultaneously, with saving MME memory source, and the paging efficiency in the raising SAE system.
Further, can have various topological structures to the IP transmission network the eNode B, in the SAE system, use the ip multicast technology that the paging request is sent to a plurality of eNode B simultaneously, can reduce the delivery flow rate of paging request, conserve network resources from MME.
Description of drawings
Fig. 1 is the structure chart of SAE wireless communication system in the prior art;
Fig. 2 is the topological diagram of IP unicast technology of the prior art;
Fig. 3 is in the prior art, the system schematic of the MME of system when eNode B sends the paging request in the SAE radio communication;
Fig. 4 is the topological diagram of ip multicast technology of the prior art;
Fig. 5 is among the present invention, the system schematic of system when eNode B sends the paging request in the SAE radio communication.
Fig. 6 is in the SAE wireless communication system of the present invention, uses the flow chart of ip multicast technology to the request of eNode B distributing seeking.
Embodiment
Among the present invention, MME and UPE both can also can separate in same physical entity.Same MME can manage one or more TA (Tracking Area).MME carries out the location management of the UE among the Evolved RAN by TA, and a TA comprises one or more eNode B.MME is between the eNode B being the IP transmission network.
Need the distributing paging request at MME, and when finding that UE resides among the EVOLVED RAN, MME can use the ip multicast technology that the paging request is sent to all eNode B among the corresponding TA simultaneously.
MME need support the management of ip multicast group, i.e. the corresponding relation of managing I P multicast group and TA.For a TA, MME need be after setting up TA, before the transmission paging request, sets up a static IP multicast group, and the reception object in this ip multicast group comprises all eNode B in the corresponding TA.Each ip multicast group and each TA concern one to one.Each ip multicast group has a unique multicast IP address, the also only corresponding ip multicast group in multicast IP address.
When MME needs UE among the paging Evolved RAN, check then which TA this UE resides in, and find out the address of the pairing ip multicast group of this TA that MME sends to this multicast IP address with the paging request.All eNode B among the TA can monitor and receive sending to the pairing multicast IP of this TA address, and normal distributing paging request.
With reference to the accompanying drawings the preferred embodiments of the present invention are described in detail.
As shown in Figure 5, MME is a SAE core network control surface equipment, and MME need support the management of ip multicast group, i.e. the corresponding relation of managing I P multicast group and TA.For a TA, MME need be after setting up TA, before the transmission paging request, sets up a static IP multicast group, and the reception object in this ip multicast group comprises all eNode B in the corresponding TA.Each ip multicast group and each TA concern one to one.Each ip multicast group has a unique multicast IP address, the also only corresponding ip multicast group in multicast IP address.
Know that at MME UE is among the Evolved RAN, and when needing this UE of paging, at this moment MME checks which TA this UE resides in, each TA can comprise a plurality of eNode B.
MME finds out and the multicast IP address of the ip multicast group of this TA correspondence, and then, MME sends the paging request to this multicast IP address, as 401.
ENode B is a SAE access network base stations equipment, and eNode B need support the monitoring of ip multicast.When eNode B has listened to the bag of issuing this multicast IP address, receive, as 402,403,404.
Can have various topological structures from MME to the IP transmission network the eNode B, use the ip multicast technology, MME can send to eNode B with the paging request expeditiously, saves the MME memory source, conserve network resources.
As shown in Figure 6, use ip multicast technology has been described, at the idiographic flow of SAE system distributing seeking request.
Step 601:MME is the corresponding relation of the good TA of static configuration and ip multicast group in advance, and promptly the reception object in ip multicast group comprises all eNode B in the corresponding TA.
Each ip multicast group and each TA concern that one to one each ip multicast group has a unique multicast IP address, the also only corresponding ip multicast group in multicast IP address.MME and UPE can also can separate in a physical entity.
Step 602:UPE receives the down user data of issuing certain UE, and MME finds this UE and resides in the SAE connecting system, and is in idle condition, need be in the TA at UE place this UE of paging.
Step 603:MME finds out the residing TA information of this UE.
According to the residing TA information of this UE, find out and the multicast IP address of the ip multicast group of this TA correspondence.
Step 604:MME sends the paging request to this multicast IP address.
All eNode B among the step 605:TA have listened to the message that sends to this multicast IP address, and receive.
Step 606:eNode B carries out the normal wireless paging.
Step 607:UE replys page response to eNode B.
Step 608:eNode B replys page response to MME, and paging finishes.
Step 609: down user data begins transmission.
Claims (6)
1. the equipment to the request of mobile communication system distributing seeking is characterized in that, described equipment comprises:
Be used to be provided with the unit of static IP multicast group;
The unit of the tracing area TA that is used for checking that when calling user described user is resident;
The unit that is used for the corresponding relation of managing I P multicast group and TA;
All that are used for the paging request sends in the multicast IP address receive the unit of object;
Be used to monitor the message that sends to this multicast IP address, and the unit that receives;
Wherein, described ip multicast group and TA are for concerning one to one, the ip multicast group has a unique multicast IP address, the corresponding ip multicast group in multicast IP address, reception object in the ip multicast group comprises that the interior all monitorings of corresponding TA send to the message of this multicast IP address, and the unit that receives.
2. the equipment to the request of mobile communication system distributing seeking according to claim 1 is characterized in that, described equipment also further comprises:
Be used to carry out the unit of radio call;
Be used to reply the unit of page response;
Be used for replying the unit of page response to MME;
Be used to transmit the unit of down user data.
3. the method to the request of mobile communication system distributing seeking comprises the steps:
(1) after setting up tracing area TA, before sending the paging request, the corresponding relation of chain of command equipment MME managing I P multicast group and TA, described ip multicast group and TA concern one to one, the ip multicast group has a unique multicast IP address, the corresponding ip multicast group in multicast IP address, the reception object in the ip multicast group comprises all base station equipment eNode B in the corresponding TA;
(2) receive the down user data of issuing user equipment (UE) as user's face equipment UPE, and reside in the system architecture SAE connecting system when MME finds this UE, and when being in idle condition, this UE of paging in the residing TA of UE;
(3) MME is according to the residing TA information of this UE, finds out and the multicast IP address of the ip multicast group of this TA correspondence;
(4) MME the paging request is sent in the multicast IP address all receive objects;
(5) the eNode B among the TA monitors and sends to the message of this multicast IP address, and receives.
4. according to the described method of claim 3, further comprise to the request of mobile communication system distributing seeking:
(6) eNode B carries out radio call;
(7) UE replys page response to eNode B;
(8) eNode B replys page response to MME;
(9) transmission down user data.
5. the method to the request of mobile communication system distributing seeking according to claim 4 is characterized in that, in the step (2), MME and UPE are in a physical entity or separate.
6. the equipment to the request of mobile communication system distributing seeking is characterized in that, described equipment comprises:
Be used for after setting up tracing area TA, before sending the paging request, the unit of the corresponding relation of managing I P multicast group and TA, wherein, described ip multicast group and TA concern one to one, the ip multicast group has a unique multicast IP address, the corresponding ip multicast group in multicast IP address, and the reception object in the ip multicast group comprises all base station equipment eNode B in the corresponding TA;
Be used to receive the unit of down user data;
Be used for finding the user and reside in the system architecture connecting system, and when being in idle condition, the unit that in the residing TA of user, this user is carried out paging;
Be used for according to residing TA information, find out and the unit of the multicast IP address of the ip multicast group of this TA correspondence;
All that are used for the paging request sends in the multicast IP address receive the unit of object;
Be used to monitor the message that sends to this multicast IP address, and the unit that receives.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101082714A CN101094510B (en) | 2006-08-04 | 2006-08-04 | Device and method for distributing seeking request to mobile communication system |
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| CN2006101082714A CN101094510B (en) | 2006-08-04 | 2006-08-04 | Device and method for distributing seeking request to mobile communication system |
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| CN101094510B true CN101094510B (en) | 2010-06-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101646157B (en) * | 2008-08-04 | 2012-02-15 | 华为技术有限公司 | Method for managing pool information and equipment thereof |
| CN101754116A (en) * | 2008-12-03 | 2010-06-23 | 中兴通讯股份有限公司 | Method and device of containing interface transport address of X2 interface of base under LTE system |
| CN101489221B (en) * | 2009-01-15 | 2011-05-18 | 华为技术有限公司 | Data sending, transmitting, receiving method and apparatus, local area network establishing method and apparatus |
| WO2015096040A1 (en) * | 2013-12-24 | 2015-07-02 | 华为技术有限公司 | Access node, mobile management network element and paging message processing method |
| JP6499283B2 (en) | 2014-09-30 | 2019-04-10 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Paging method, related device, and system |
| CN105813027B (en) * | 2014-12-31 | 2020-05-15 | 上海朋邦实业有限公司 | Method, equipment and system for transmitting signaling |
| CN106714304A (en) * | 2015-07-30 | 2017-05-24 | 中国电信股份有限公司 | LTE paging method and system |
| WO2024060035A1 (en) * | 2022-09-20 | 2024-03-28 | Nec Corporation | Method, device and computer storage medium of communication |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1592273A (en) * | 2003-06-20 | 2005-03-09 | 株式会社Ntt都科摩 | Network system, control apparatus, router device, access point and mobile terminal |
| CN1592480A (en) * | 2003-08-12 | 2005-03-09 | 诺基亚公司 | Arrangement and method for paging, cellular radio system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592273A (en) * | 2003-06-20 | 2005-03-09 | 株式会社Ntt都科摩 | Network system, control apparatus, router device, access point and mobile terminal |
| CN1592480A (en) * | 2003-08-12 | 2005-03-09 | 诺基亚公司 | Arrangement and method for paging, cellular radio system |
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