CN1835628A - Method of access of radio network netgate for user's terminal - Google Patents
Method of access of radio network netgate for user's terminal Download PDFInfo
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- CN1835628A CN1835628A CNA2005100553119A CN200510055311A CN1835628A CN 1835628 A CN1835628 A CN 1835628A CN A2005100553119 A CNA2005100553119 A CN A2005100553119A CN 200510055311 A CN200510055311 A CN 200510055311A CN 1835628 A CN1835628 A CN 1835628A
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Abstract
The method comprises: the base station of cell is used to select a radio network gateway to access for user terminal, allocates temporary ID corresponding to the said radio network gateway for the user terminal, and sends the temporary ID to the user terminal; the user terminal transmits the access request including the temporary ID to the said base station of cell; after receiving the access request, the base station lets the user terminal access to the radio network gateway.
Description
Technical field
The present invention relates to the Radio Access Network technology in the communications field, be specifically related to a kind of method of access of radio network netgate for user's terminal.
Background technology
The wireless network of widespread usage is made up of wireless access network and core net at present, wherein, wireless access network is made up of one or several RNS (RNS Radio Network Subsystem) usually, and RNS comprises a radio network controller (RNC), one or several base station node B.Wireless access network system in the wireless network as shown in Figure 1.
Among Fig. 1, establish the Radio interface protocols stack among the RNC, i.e. Radio interface protocols stack such as PDCP/BMC/RLC/MAC.This makes RNC finish the functions such as forwarding of system broadcasts, paging, Radio Resource control and management, wireless access network application protocol (RANAP)/RNS application protocol (RNSAP) message; Then there is not described Radio interface protocols stack among the Node B, i.e. Radio interface protocols stack such as PDCP/BMC/RLC/MAC.Therefore, Node B can only finish the functions such as exchange of spread spectrum, modulation, coding, baseband signal and the radiofrequency signal of wireless signal.
RNC 101 links to each other by the Iu interface with CN 100, and RNC 101 links to each other by Iub interface with Node B 102, Node B103.In this Radio Access Network structure, a Node B only links to each other with a RNC, and have the attaching relation based on control and management between different RNC and the different Node B, that is: Node B 102, Node B 103 only link to each other with RNC 101 respectively and are managed by RNC101.
Development along with radio communication, people carry out evolution to wireless access network, wherein a kind of wireless access network of the evolution mode gained that is being carried out theoretical research as shown in Figure 2, Fig. 2 is the wireless access network system figure in the another kind of wireless network of prior art, and described wireless access network system comprises a plurality of radio network netgates (RNG), a plurality of Node B+.Wherein, RNG 201, RNG 202, RNG203 carry out evolution functional entity afterwards to RNC among Fig. 1 101, and Node B+204, Node B+205 carry out evolution functional entity afterwards to Node B 102, Node B 103 among Fig. 1.On behalf of this Node B+, "+" among the above-mentioned Node B+ finished described evolution.
RNG after the evolution can only finish the functions such as forwarding of system broadcasts, paging, RANAP/RNSAP message, and no longer carries out operations such as the control of Radio Resource and management; Comparatively speaking, the Node B+ after the evolution can also finish functions such as the control of Radio Resource and management except the exchange of finishing wireless signal spread spectrum, modulation, coding, baseband signal and radiofrequency signal.
As seen, Node B+ after the evolution than among Fig. 1 not the function of the Node B of evolution strengthen to some extent, the function of RNG after the evolution then than among Fig. 1 not the function of the RNC of evolution weaken to some extent, this mainly is in order to make Node B+ conduct and the immediate node of UE, can finish the operation such as control, management of Radio Resource as far as possible, and then alleviate the live load of RNG, thereby effectively reduce the resources occupation rate of RNG.
Among Fig. 2, RNG 201, RNG 202, RNG 203 link to each other by the Iu interface with CN 200 respectively, and RNG 202 links to each other by Iur with RNG 201, RNG 203 respectively, also can link to each other by Iur between RNG 201 and the RNG 203; Certainly, may there be above-mentioned interface between each RNG yet.Node B+204, Node B 205 can communicate by letter with UE 206 by Radio Link respectively.
In addition, be the annexation of multi-to-multi between Node B+ in the wireless access network after the evolution and the RNG, as: Node B+204 links to each other by Iur and/or Iu interface with RNG 201, RNG 202, RNG 203 respectively among Fig. 2; Node B+205 links to each other by Iur and/or Iu interface with RNG 201, RNG 202 respectively.Between Node B+204 and the Node B+205 Iur interface is arranged usually.
Yet, each the Node B+ that comprises Node B+204 all has and self is maintained fixed the RNG that is connected, as: operation maintenance center's network side entities such as (OMC) is provided with certain default RNG respectively for each Node B+ in advance, make and have fixing access relation between certain Node B+ and certain RNG, and OMC should fix the relation of access and be handed down to each Node B+, make when UE 206 inserts Node B+204 that Node B+204 can fix to insert as RNG 201 RNG such as grade and with the wireless signal of the UE 206 that receives and send to RNG 201.Have only when RNG 201 can't proper communication and after network side entity such as OMC knows this situation, just can carry out corresponding change to described access relation, access relation after will changing again is handed down to each Node B+, Node B+204 is changed into fix a RNG who inserts among RNG 202 or the RNG 203.
UE 206 is initial when inserting wireless access network, wireless access network can be UE 206 distribute one can unique difference UE 206 in this wireless access network user terminal temporary identity sign (U-RNTIUTRAN-Radio Network Temporary Identifier).Suppose that UE 206 will insert wireless access network via Node B+204, when UE 206 inserted wireless access network, concrete user terminal temporary identity mark distributing method was so:
UE 206 sends service request to Node B+204 for the first time, and this service request is generally Radio Resource control (RRC) and connects the request of foundation.After Node B+204 receives that this RRC connects the request of foundation, for UE 206 distributes a U-RNTI.This U-RNTI form as shown in Figure 3.As seen, described U-RNTI is made up of three parts: default RNG sign of fixedlying connected with Node B+204 and Node B+204 sign, Node B+204 are the service serial number that UE 206 distributes, on the basis that described default RNG identifies and Node B+204 identifies that comprises at described U-RNTI, further UE 206 and other UE are distinguished.
Particularly, Node B+204 receives after the service request of UE 206, preserves the user profile that comprises in this request and also is UE 206 distribution services serial numbers; Afterwards, Node B+204 sets up corresponding relation between described user profile and described service serial number, knows the user profile of this service serial number corresponding to which UE so that can serve serial number according to this in follow-up communication process.Afterwards, Node B+204 will send to UE 206 for the U-RNTI that UE 206 distributes.
The default RNG sign that described U-RNTI comprises accounts for 12 bits usually, and Node B+204 sign accounts for 20 bits altogether with above-mentioned service serial number, and like this, described U-RNTI accounts for 32 bits altogether.
UE 206 receives that Node B+204 for behind the U-RNTI of its distribution, sends the access request that comprises this U-RNTI to Node B+204.After Node B+204 receives this access request, the default RNG sign that U-RNTI comprised in the access request that search is received, and insert the corresponding default RNG of this default RNG sign, so that in subsequent operation, UE 206 wireless signals that receive can be sent to this default RNG.
Certainly, after Node B+204 receives described access request, also can search for the service serial number that U-RNTI comprised in the access request of receiving, and search and the corresponding default RNG sign of this service serial number according to the described corresponding relation of storage, insert the default RNG of this default RNG sign correspondence again.
The method that above-mentioned Node B+204 inserts default RNG is generally: Node B+204 sends access request from UE 206 to default RNG, this access request is generally initial user terminal message (Initial UE Message), comprise in this message being used to the relevant information of supporting that signaling is connected between UE 206 user information corresponding and Node B+204 and the default RNG, above-mentioned user profile is identical with the user profile that comprises in the service request of UE 206 that Node B+204 receives usually.Default RNG receives by Node B+204 after the above-mentioned Initial UE Message, preserves the user profile that comprises among the Initial UEMessage and is used to the relevant information of supporting that signaling connects, and this InitialUE Message is transmitted to CN 200.At this moment, Node B+204 has just inserted described default RNG for UE 206.
Like this, after UE 206 inserts Node B+204 and before Node B+204 and described RNG set up transmission link, if Node B+204 receives the upstream messages such as signaling from UE 206, just search for the U-RNTI that this upstream message comprises, and the default RNG that this upstream message is sent among this U-RNTI identifies pairing RNG, this RNG and then the described upstream message that will receive send to core net (CN) or other network, to carry out follow-up respective handling.
By the above as seen, no matter be variation to have taken place for RNG that UE inserts, still variation has taken place in the Node B+ that inserts of UE, all will distribute new U-RNTI for UE for the Node B+ that UE serves.This Node B+ is the sign that includes the RNG that this Node B+ will insert among the U-RNTI that distributes of UE, and this RNG to identify pairing RNG be current unique RNG of fixedlying connected with this Node B+, Node B+ only will send to this RNG from the upstream message of UE.If at this moment described RNG works undesired even breaks down, this RNG then can't normally receive from the UE of NodeB+ upstream message, causes the business of UE to be interrupted.
In actual applications, RNG can receive the upstream message from many UE, in case above-mentioned situation occurs, the business of a large amount of UE all can be interrupted, and this will reduce the service success rate in the wireless access network greatly, also can obviously reduce user satisfaction.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of access of radio network netgate for user's terminal, improves the service success rate in the wireless access network, improves user satisfaction.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of method of access of radio network netgate for user's terminal, this method may further comprise the steps:
A. cell base station Node B+ selects the radio network netgate RNG that will insert for user terminal UE, and identifies for this UE distributes the temporary identity corresponding with above-mentioned RNG, this temporary identity is identified send to this UE again;
B.UE sends the access request that comprises above-mentioned temporary identity sign to Node B+, and Node B+ receives that this access request back identifies pairing RNG for UE inserts this temporary identity.
Among the step a, Node B+ is before the described UE RNG that selects to insert, and this method further comprises:
Node B+ receives the service request from described UE; Or,
Node B+ has inserted former RNG for described UE, and according to and this former RNG between communication interaction know that this former RNG work is undesired, interface between work excess load or this former RNG and the Node B+ breaks down; Or,
Node B+ receives from roaming or the cell update request of the described UE of direct-cut operation;
Or may further comprise the steps:
A1.Node B+ judges that whether the Node B pilot signal strength in the pilot measurement message of described UE that receives has surpassed the threshold value that is provided with, if surpassed, then enters step a2;
The RNG tabulation that a2.Node B+ preserves according to self judges whether the RNG for this UE access is gateway RNG, if, process ends then; Otherwise, with regard to the described RNG that selects for this UE to insert.
Among the step a, Node B+ is that described UE selects the method for the RNG that will insert to be:
Node B+ from coupled RNG polling or optional one working properly and and the normal RNG of the interface between self; Or from link to each other with self working properly and and the normal RNG of interface between self select the RNG that live load is minimum.
Described temporary identity sign comprises:
Described Node B+ is the service serial number that described UE distributes, and this Node B+ identifies, described RNG sign;
Among the step b, the method that Node B+ inserts described RNG comprises:
The RNG sign that Node B+ is comprised according to the sign of the temporary identity in the access request of receiving sends to the corresponding RNG of this RNG sign with this access request.
Described temporary identity sign comprises: described Node B+ is the service serial number that described UE distributes,
And this Node B+ sign;
Among the step a, described Node B+ further is provided with and preserves the sign of this RNG and the corresponding relation of described service serial number after having selected the described RNG that will insert;
Among the step b, the method that Node B+ inserts described RNG comprises:
Node B+ identifies the service serial number that is comprised according to the temporary identity in the access request of receiving, and searches and the corresponding RNG sign of this service serial number according to the described corresponding relation of storage, this access request is sent to the RNG of this RNG sign correspondence.
Among the step a, after UE received described temporary identity sign, the temporary identity of preserving with this identification renewal self identified.
Among the step b, after Node B+ inserted described RNG, this method further comprised:
The RNG sign that Node B+ is comprised according to the sign of the temporary identity in the wireless signal of receiving sends to the corresponding RNG of this RNG sign with this wireless signal.
Among the step b, after Node B+ inserted described RNG, this method further comprised:
Node B+ identifies the service serial number that is comprised according to the temporary identity in the wireless signal of receiving, and searches and the corresponding RNG sign of this service serial number according to the described corresponding relation of storage, and this wireless signal is sent to the corresponding RNG of this RNG sign.
Described temporary identity sign total length is 32 bits, and described RNG sign length wherein is less than 12 bits.
Described temporary identity sign total length is 32 bits, and described service serial number length wherein is 12 bits, and described Node B+ sign length is 20 bits.
Compared with prior art, the method of access of radio network netgate for user's terminal provided by the present invention, using cell base station is the radio network netgate that user terminal selecting will insert, and, again this temporary identity sign is sent to this user terminal for this user terminal distributes the temporary identity sign corresponding with above-mentioned radio network netgate; This user terminal sends the access request that comprises above-mentioned temporary identity sign to described cell base station, and cell base station receives that this access request back identifies pairing radio network netgate for user terminal inserts this temporary identity.The present invention can effectively improve the service success rate in the wireless access network, also can improve user satisfaction.
Description of drawings
Fig. 1 is the wireless access network system figure in a kind of wireless network of prior art;
Fig. 2 is the wireless access network system figure in the another kind of wireless network of prior art;
Fig. 3 is the U-RNTI form of prior art;
Fig. 4 is user terminal temporary identity sign allocation flow figure of the present invention;
Fig. 5 is user terminal temporary identity sign distribution principle figure of the present invention;
Fig. 6 is a kind of U-RNTI form of the present invention;
Fig. 7 is an another kind of U-RNTI form of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments to the detailed description of the invention.
The method of access of radio network netgate for user's terminal provided by the invention, using cell base station is the radio network netgate that user terminal selecting will insert, and, again this temporary identity sign is sent to this user terminal for this user terminal distributes the temporary identity sign corresponding with above-mentioned radio network netgate; This user terminal sends the access request that comprises above-mentioned temporary identity sign to described cell base station, and cell base station receives that this access request back identifies pairing radio network netgate for user terminal inserts this temporary identity.
Referring to Fig. 4, Fig. 4 is user terminal temporary identity sign allocation flow figure of the present invention, and this flow chart may further comprise the steps:
Step 401:UE start is also finished after the location registers in Node B+, sends service request to network side for the first time, and this service request is generally RRC and connects the request of foundation.After Node B+ receives that this RRC connects the request of foundation, the information such as the signatory message of user that comprise in the RRC connection foundation request according to this UE transmission are admitted accordingly and are controlled judgement, to determine whether this UE can insert, if being this UE, judged result can insert, Node B+ then distributes corresponding channel resources for this UE, as: the wireless transmission channel with certain bandwidth.And Node B+ sends to UE with the channel resource configuration parameter corresponding of distributing; After UE receives above-mentioned parameter channel configuration, insert the above-mentioned channel that Node B+ distributes according to this parameter channel configuration.
Step 402:Node B+ need distribute temporary identity sign, that is: a U-RNTI for this UE for the UE that inserts is carried out effective telecommunication management.But before distributing U-RNTI, Node B+ will select the RNG that will insert for this UE, sends to CN or other networks so that Node B+ inserts the UE wireless signal that self can be received behind this RNG via this RNG, to carry out follow-up respective handling.
Node B+ selects the method for the RNG that will insert a lot, the RNG that can polling links to each other with self, also can with RNG that self links to each other in choose a RNG wantonly.Certainly, the prerequisite of using above-mentioned system of selection is: the interface between the described RNG that Node B+ will insert working properly and this RNG and the Node B+ is working properly.When the interface when above-mentioned RNG work between undesired or this RNG and the Node B+ broke down, above-mentioned system of selection then will change to some extent.
Undesired this RNG fault that is meant of above-mentioned RNG work, as: RNG can't the sending and receiving signal or the error rate of sending and receiving signal surpassed the situations such as normal range (NR) that self are provided with.Certainly, under the situation of RNG work excess load, also can do some variations to above-mentioned system of selection.Described RNG work excess load is meant that resources occupation rate or system's occupancy that RNG is current have surpassed the normal duty thresholding that self is provided with, and the resource here is often referred to service resources such as bandwidth, channel code time slot; Described system occupancy is called central processing unit (CPU) occupation rate again, is meant the utilization rate of the CPU of processing signaling flow process among the RNG.
Interface between above-mentioned RNG and the Node B+ breaks down and is meant normally sending and receiving signal of described interface, or the error rate of described interface sending and receiving signal has surpassed the set situations such as normal range (NR) of Node B+.
Each RNG in the Access Network obtains above-mentioned resources occupation rate or the operation state values such as system's occupancy of self in real time or periodically, to know self current excess load of whether working; RNG also obtains the error rate of self sending and receiving signal in real time or periodically, to know self current whether breaking down.Certainly, if RNG since self hardware fault cause can't the sending and receiving signal, RNG also can be known this situation by detecting self hardware.Know as RNG and self to work when undesired, just send the corresponding work unexpected message, make Node B+ can know this situation to the Node B+ that links to each other with self.
Each Node B+ in the Access Network obtains the error rate of self sending and receiving signal in real time or periodically, to know self current whether breaking down.Certainly, if Node B+ is owing to break down and cause can't the sending and receiving signal time with hardware such as interface between the RNG that self links to each other, Node B+ also can be by detecting hardware such as this interface to know this situation; Simultaneously, whether Node B+ also obtains the Interface status between self and other RNG, normal to know this interface.
The RNG work that said method knows Node B+ will to insert according to methods such as described pollings is undesired when using, when the interface between work excess load or this RNG and the Node B+ breaks down, NodeB+ does not then insert this RNG, but selects do not exist an above-mentioned interface fault and a RNG working properly who links to each other with self to be used for inserting.Particularly, Node B+ can not exist above-mentioned interface fault and the RNG working properly from all that link to each other with self, selects a RNG that live load is the lightest to be used for inserting; Can not have that an optional RNG is used for inserting above-mentioned interface fault and the RNG working properly from all that link to each other with self yet.
All preserve the RNG tabulation among each Node B+, record sign and the address information of all RNG in the wireless access network in this RNG tabulation, and the information such as route between each RNG and the above-mentioned Node B+, can insert final selected RNG smoothly to guarantee this Node B+.
Behind the RNG that Node B+ application said method has been determined to insert, also to be described UE distribution services serial number, and distribute U-RNTI according to the UE that is designated of this service serial number and above-mentioned RNG.This U-RNTI comprises the selected RNG sign that will insert of Node B+ and this Node B+ sign, this Node B+ is the service serial number that UE distributes, on the basis that described RNG identifies and described Node B+ identifies that comprises at described U-RNTI, further described UE and other UE are distinguished.Node B+ after UE distributes described U-RNTI, sends to UE with this U-RNTI.After UE receives this U-RNTI, upgrade the U-RNTI that self preserves with this U-RNTI.
After step 403:UE receives described U-RNTI, send the request of access to described Node B+.Node B+ inserts the described RNG that selects in the step 402 after receiving this access request for UE.The method principle that the Node B+204 that describes in the method that NodeB+ inserts described RNG and the background technology inserts default RNG is identical.
Like this, after UE inserts Node B+ and before Node B+ and described RNG set up transmission link, if Node B+ receives the upstream messages such as signaling from UE, just search for the U-RNTI that this upstream message comprises, and the RNG that this upstream message is sent among this U-RNTI identifies pairing RNG, this RNG and then the described upstream message that will receive send to CN or other network, to carry out follow-up respective handling.
After if described Node B+ has inserted certain RNG, correlation method described in the applying step 402 knows that its RNG that has inserted work is undesired, the interface between work excess load or this RNG and the Node B+ breaks down, when causing current this RNG to be unfavorable for communicating by letter, Node B+ then will reselect a RNG who helps communicating by letter and be used for inserting, and RNG method that the selection of Ying Yonging at this moment will insert and the described system of selection in the step 402 have same principle.The described RNG that above-mentioned Node B+ has inserted is commonly referred to former RNG.Below if Node B+ has inserted a RNG, but for a certain reason will then insert the situation of another RNG, the described RNG that then also Node B+ can have been inserted is called former RNG.
After Node B+ had selected the RNG that helps communicating by letter that will insert, just the UE that is designated according to this RNG distributed new U-RNTI.This U-RNTI comprises the selected again RNG sign that will insert of Node B+ and this Node B+ sign, this Node B+ is the service serial number that UE distributes.Afterwards, Node B+ should send to UE by newly assigned U-RNTI.
After UE receives this newly assigned U-RNTI, upgrade the U-RNTI that self preserves.Described update method is generally: UE covers the original U-RNTI that once distributed that self preserves with receiving this newly assigned U-RNTI.Afterwards, UE sends the request of access to Node B+.After Node B+ receives this access request, for UE inserts selected again described RNG.The method principle that the Node B+204 that describes in the method that Node B+ inserts described RNG and the background technology inserts default RNG is identical.
Like this, after UE inserts Node B+ and before Node B+ and described RNG set up transmission link, if Node B+ receives the upstream message from UE, just search for the U-RNTI that this upstream message comprises, and the RNG that this upstream message is sent among this U-RNTI identifies pairing RNG, this RNG and then the described upstream message that will receive send to CN or other network, to carry out follow-up respective handling.
If UE has carried out cell update because of roaming or direct-cut operation, make that originally the Node B+ for this UE service no longer is this UE service, but be that this UE serves by another Node B+; So, current Node B+ for this UE service then will distribute new U-RNTI for UE.As: UE has switched in the signal cover of target Node B+ in the signal cover of source Node B+, and source Node B+ no longer is this UE service, but is this UE service by target Node B+.At this moment, target Node B+ will distribute new U-RNTI for UE.Certainly, above-mentioned source, target Node B+ are different Node B+, and do not have communication interface usually between the source, target Node B+.
Can send the cell update request to target Node B+ when generally speaking, UE carries out cell update because of roaming or direct-cut operation.After target Node B+ received this cell update request, for this UE distributes new U-RNTI, RNG sign and the target Node B+ that this U-RNTI comprises source Node B+ access identified, target Node B+ is the service serial number that UE distributes.
Afterwards, target Node B+ should send to UE by newly assigned U-RNTI, after UE receives this newly assigned U-RNTI, cover the original U-RNTI that once distributed that self preserves with this U-RNTI, and to target Node B+ transmission access request, after target Node B+ receives this access request, for UE inserts the described RNG that source Node B+ inserts.The method principle that the Node B+204 that describes in the method that target Node B+ inserts described RNG and the background technology inserts default RNG is identical.
Like this, after UE inserts target Node B+ and before the RNG of target Node B+ and source Node B+ access sets up transmission link, if target Node B+ receives the upstream message from UE, just search for the U-RNTI that this upstream message comprises, and the RNG that this upstream message is sent among this U-RNTI identifies pairing RNG, this RNG and then the described upstream message that will receive send to CN or other network, to carry out follow-up respective handling.
Certainly, if being described UE, distributes before the new U-RNTI above-mentioned target Node B+, correlation method described in the applying step 402 knows that the RNG work that source Node B+ inserts is undesired, the interface between work excess load or this RNG and the target Node B+ breaks down or not have described interface, when causing current this RNG to be unfavorable for communicating by letter, target Node B+ then will reselect a RNG who helps communicating by letter and be used for inserting, and RNG method that the selection of Ying Yonging at this moment will insert and the described system of selection in the step 402 have same principle.
After target Node B+ had selected the RNG that helps communicating by letter that will insert, just the UE that is designated according to this RNG distributed new U-RNTI.This U-RNTI comprises the selected again RNG sign that will insert of target Node B+ and target Node B+ sign, target Node B+ is the service serial number that UE distributes.Afterwards, target Node B+ should send to UE by newly assigned U-RNTI.
After UE receives this newly assigned U-RNTI, cover the original U-RNTI that once distributed that self preserves, and send the request of access to target Node B+ with this U-RNTI.After target Node B+ receives this access request, for UE inserts selected again described RNG.The method principle that the Node B+204 that describes in the method that target Node B+ inserts described RNG and the background technology inserts default RNG is identical.
Like this, after UE inserts target Node B+ and before target Node B+ and the described RNG that selectes again set up transmission link, if target Node B+ receives the upstream message from UE, just search for the U-RNTI that this upstream message comprises, and the RNG that this upstream message is sent among this U-RNTI identifies pairing RNG, this RNG and then the described upstream message that will receive send to CN or other network, to carry out follow-up respective handling.
In addition, during wireless access network before the wireless access network of UE after evolution switches to evolution, might also need is that this UE distributes new U-RNTI, this distribution method as shown in Figure 5, Fig. 5 be that user terminal temporary identity of the present invention identifies distribution principle figure.
Among Fig. 5, RNG 501, gateway RNG 502, RNC 503 link to each other by the Iu interface with CN 500 respectively, and gateway RNG 502 links to each other by the Iur interface with RNG 501, RNC 503 respectively, do not communicate to connect between RNG 501 and the RNG 503; Certainly, may there be described Iur interface between RNG 501 and the gateway RNG 502 yet.Node B+504 links to each other by Iur and/or Iu interface with RNG 501, gateway RNG 502; Node B 505 and RNC 503 link to each other by Iub interface; NodeB+504, Node B 505 can communicate by letter with UE 506 by Radio Link respectively.In the wireless access network after evolution, have only the RNG as gateway RNG 502 just and between the such RNC of the RNC in the wireless access network before the evolution 503 to have communication interface, and then can communicate by letter with Node B 505.
Among Fig. 5, suppose that UE 506 has inserted RNG 501 via Node B+, and be assigned with U-RNTI.
Generally speaking, UE 506 periodically receives its all Node B+ that can receive and the pilot signal of NodeB, and sends the pilot measurement message that comprises above-mentioned pilot signal strength to the Node B+504 as source cell base station.When the pilot signal of the Node B 505 that is comprised when above-mentioned pilot measurement message reaches certain intensity, Node B+504 then with Node B 505 as Target cell, and guide UE 506 to insert Node B 505.This situation is taken place when NodeB 505 switches by Node B+504 at UE 506 usually.
Above-mentioned Node B+504 knows that method that whether described pilot signal reach certain intensity normally: set in advance a pilot signal strength threshold value in the Node B+504, if the intensity of above-mentioned pilot signal has surpassed this threshold value, Node B+504 thinks that then this pilot signal has reached certain intensity; Otherwise Node B+504 thinks that then this pilot signal does not reach certain intensity.
Usually Node B 505 is after UE 506 inserts, the wireless signal from UE 506 that can will receive sends to RNG 501 via RNC 503, carries out necessary signal processing such as grand diversity merging so that RNG 501 can send to Node B+504 with the wireless signal of the UE 506 that receives.But, described wireless signal can't be sent to RNG501 owing to do not have communication interface between RNC 503 and the RNG 501; So Node B+504 when receiving above-mentioned pilot measurement message, exist the RNG of communication interface to be used for inserting for UE 506 reselects between as gateway RNG 502 and the RNC 503.Exactly because also above-mentioned variation has taken place the Node B+504 RNG that will insert, finally causing Node B+504 need be that UE 506 distributes new U-RNTI.
Usually store whether each RNG is the relevant information of gateway RNG in the wireless access network in the RNG tabulation of preserving among each Node B+, this makes each Node B+ to know whether certain RNG in the wireless access network is gateway RNG according to the RNG tabulation of self preserving.
Certainly, if UE 506 is before switching to Node B 505, that insert via Node B+504 is gateway RNG 502 rather than RNG 501, and Node B+504 then not necessarily will be that UE 506 distributes new U-RNTI.In actual applications, whether be that UE 506 distributes new U-RNTI in this case, depend on and network settings and network work situation at that time.Node B+504 can obtain the relevant information of each RNG from the RNG tabulation of self preserving, to determine whether each RNG is gateway RNG.
Above-mentioned Node B+504 is that UE 506 concrete operations when distributing new U-RNTI are:
Node B+504 receives the pilot measurement message from UE 506, when the pilot signal of the Node B 505 that is comprised when this pilot measurement message reaches certain intensity, Node B+504 is the relevant informations such as positional information of search gateway RNG502 in the RNG tabulation of self preserving then, and the transfer resource based on UE 506 distribution between release and the RNG501.Simultaneously, Node B+504 is that UE 506 distributes new U-RNTI, and this U-RNTI is sent to UE 506.This U-RNTI comprises the sign of gateway RNG502 and sign, the Node B+504 of Node B+504 is the service serial number that UE 506 distributes.
Certainly, if a plurality of gateway RNG are arranged in the wireless access network after the evolution, after then Node B+504 receives described pilot measurement message, can select a gateway RNG who links to each other with RNG503 to be used for inserting from above-mentioned a plurality of gateway RNG, the method for the selection gateway RNG of Ying Yonging and the described system of selection in the abovementioned steps 402 at this moment has same principle.After the gateway RNG that has determined to insert, Node B+504 sends the U-RNTI that comprises this gateway RNG sign to UE 506.
After UE 506 receives this newly assigned U-RNTI, cover the original U-RNTI that once distributed that self preserves, and send the request of access to Node B+504 with this U-RNTI.After Node B+504 receives this access request, for UE 506 inserts described RNG.The method principle that the Node B+204 that describes in the method that Node B+504 inserts described RNG and the background technology inserts default RNG is identical.
By the above as can be known, UE temporary identity mark distributing method of the present invention, the Node B+ that UE is inserted can select suitable R NG to be used for inserting arbitrarily, and distribute U-RNTI according to the UE that is designated of this RNG, and insert the described RNG that selects for UE again.The inventive method has obviously improved the service success rate in the wireless access network, also can improve user satisfaction.
When practical application, be called service RNG with above-mentioned by the finally selected RNG that will insert of Node B+ usually.
In aforesaid step 402, Node B+ is that the U-RNTI of UE distribution has form as shown in Figure 6 usually.
Among Fig. 6, described U-RNTI is made up of three parts: service RNG sign that Node B+ inserts and Node B+ sign, Node B+ are the service serial number that UE distributes.Wherein, the sign length of described service RNG is usually less than 12 bits.Generally this service RNG sign length can be made as 6 bits, Node B+ sign accounts for 26 bits altogether with above-mentioned service serial number, and like this, described U-RNTI accounts for 32 bits altogether.
Why service RNG among Fig. 6 sign is set to 6 bits, is because the quantity of RNG reduces to some extent in the wireless access network after evolution, there is no need that length is the sign of 12 bits among similar Fig. 3 for RNG is provided with again; The bit length that Node B+ among Fig. 6 sign has then can be longer than the bit length that the sign of the Node B+ among Fig. 3 has, to adapt to the increase of Node B+ quantity in the wireless access network after the evolution.Certainly, also can be set to be not equal to other bit length of 6 bits according to the sign of the service RNG among actual conditions Fig. 6; In addition, the bit length of the bit length of above-mentioned NodeB+ sign and service serial number also can carry out corresponding setting according to actual conditions.
Above-mentioned NodeB+ also can not comprise described service serial number among the U-RNTI that distributes of UE, but comprises or further send for UE other sign, needs only this sign and can further identify this UE and help the subsequent communications that NodeB+ manages this UE.Above-mentioned service serial number normally NodeB+ is the UE Random assignment, and the service serial number that comprises among the different U-RNTI is different usually.
By the above as seen, including this NodeB+ among the described U-RNTI of NodeB+ for the UE distribution of access will be the RNG sign that this UE inserts.But in actual applications, after NodeB+ has selected the RNG that will insert for UE, also can include only this NodeB+ sign and described service serial number among the described U-RNTI for this UE distribution, and not comprise the sign of described RNG.At this moment U-RNTI then as shown in Figure 7.
Among Fig. 7, described U-RNTI is made up of two parts: Node B+ sign and this Node B+ are the service serial number that UE distributes.Usually Node B+ sign length is set to 20 bits, and described service serial number length is set to 12 bits, and like this, described U-RNTI accounts for 32 bits altogether.Certainly, also can carry out corresponding setting to sign length of the Node B+ among Fig. 7 and described service serial number length according to actual conditions.
If include only the service serial number that this NodeB+ sign and this NodeB+ distribute for this UE among the U-RNTI of the NodeB+ that UE inserts for this UE distribution, and do not comprise that described RNG identifies, NodeB+ is after having selected the RNG that will insert for UE so, just need between the sign of this RNG and described service serial number, set up corresponding relation, and preserve this corresponding relation.
Like this, if NodeB+ receives the access request that comprises described U-RNTI that this UE sends in follow-up communication process, NodeB+ then can find its corresponding RNG sign according to the service serial number among the U-RNTI that comprises in this access request, and then inserts the corresponding RNG of this RNG sign.If receive the wireless signal that comprises described U-RNTI that this UE sends after the NodeB+ again, NodeB+ then can find its corresponding RNG sign according to the service serial number among the U-RNTI that comprises in this wireless signal, and then described wireless signal sent to the corresponding RNG of this RNG sign, by this RNG the wireless signal of receiving is sent to CN or other network again, to carry out follow-up respective handling.
By the above as can be seen, the method for access of radio network netgate for user's terminal provided by the present invention has improved the service success rate in the wireless access network, has also improved user satisfaction.
Claims (10)
1, a kind of method of access of radio network netgate for user's terminal is characterized in that, this method may further comprise the steps:
A. cell base station Node B+ selects the radio network netgate RNG that will insert for user terminal UE, and identifies for this UE distributes the temporary identity corresponding with above-mentioned RNG, this temporary identity is identified send to this UE again;
B.UE sends the access request that comprises above-mentioned temporary identity sign to Node B+, and Node B+ receives that this access request back identifies pairing RNG for UE inserts this temporary identity.
2, the method for claim 1 is characterized in that, among the step a, Node B+ is before the described UE RNG that selects to insert, and this method further comprises: Node B+ receives the service request from described UE; Or,
Node B+ has inserted former RNG for described UE, and according to and this former RNG between communication interaction know that this former RNG work is undesired, interface between work excess load or this former RNG and the Node B+ breaks down; Or,
Node B+ receives from roaming or the cell update request of the described UE of direct-cut operation;
Or may further comprise the steps:
A1.Node B+ judges that whether the Node B pilot signal strength in the pilot measurement message of described UE that receives has surpassed the threshold value that is provided with, if surpassed, then enters step a2;
The RNG tabulation that a2.Node B+ preserves according to self judges whether the RNG for this UE access is gateway RNG, if, process ends then; Otherwise, with regard to the described RNG that selects for this UE to insert.
3, method as claimed in claim 1 or 2 is characterized in that, among the step a, Node B+ is that described UE selects the method for the RNG that will insert to be:
Node B+ from coupled RNG polling or optional one working properly and and the normal RNG of the interface between self; Or from link to each other with self working properly and and the normal RNG of interface between self select the RNG that live load is minimum.
4, the method for claim 1 is characterized in that, described temporary identity sign comprises:
Described Node B+ is the service serial number that described UE distributes, and this Node B+ identifies, described RNG sign;
Among the step b, the method that Node B+ inserts described RNG comprises:
The RNG sign that Node B+ is comprised according to the sign of the temporary identity in the access request of receiving sends to the corresponding RNG of this RNG sign with this access request.
5, the method for claim 1 is characterized in that, described temporary identity sign comprises:
Described Node B+ is the service serial number that described UE distributes, and this Node B+ sign;
Among the step a, described Node B+ further is provided with and preserves the sign of this RNG and the corresponding relation of described service serial number after having selected the described RNG that will insert;
Among the step b, the method that Node B+ inserts described RNG comprises:
Node B+ identifies the service serial number that is comprised according to the temporary identity in the access request of receiving, and searches and the corresponding RNG sign of this service serial number according to the described corresponding relation of storage, this access request is sent to the RNG of this RNG sign correspondence.
6, the method for claim 1 is characterized in that, among the step a, after UE received described temporary identity sign, the temporary identity of preserving with this identification renewal self identified.
7, method as claimed in claim 4 is characterized in that, among the step b, after Node B+ inserted described RNG, this method further comprised:
The RNG sign that Node B+ is comprised according to the sign of the temporary identity in the wireless signal of receiving sends to the corresponding RNG of this RNG sign with this wireless signal.
8, method as claimed in claim 5 is characterized in that, among the step b, after Node B+ inserted described RNG, this method further comprised:
Node B+ identifies the service serial number that is comprised according to the temporary identity in the wireless signal of receiving, and searches and the corresponding RNG sign of this service serial number according to the described corresponding relation of storage, and this wireless signal is sent to the corresponding RNG of this RNG sign.
As claim 4 or 7 described methods, it is characterized in that 9, described temporary identity sign total length is 32 bits, described RNG sign length wherein is less than 12 bits.
As claim 5 or 8 described methods, it is characterized in that 10, described temporary identity sign total length is 32 bits, described service serial number length wherein is 12 bits, and described Node B+ sign length is 20 bits.
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| CNB2005100553119A CN100450278C (en) | 2005-03-15 | 2005-03-15 | Method of access of radio network netgate for user's terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141818B (en) * | 2007-10-16 | 2011-08-10 | 华为技术有限公司 | Network cell dwelling and converting method, device and subscriber terminal |
| WO2011097919A1 (en) * | 2010-02-10 | 2011-08-18 | 华为技术有限公司 | Method and system for data transmission |
| CN101945390B (en) * | 2009-07-08 | 2013-12-04 | 华为技术有限公司 | Admission control method and device |
| CN104519526A (en) * | 2013-09-27 | 2015-04-15 | 华为技术有限公司 | Network access point, network controller, network device, and load control method of network device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6879832B1 (en) * | 1999-02-26 | 2005-04-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for transferring information between mobile terminals and entities in a radio access network |
| FI114077B (en) * | 1999-03-10 | 2004-07-30 | Nokia Corp | ID booking method |
| EP1401226A1 (en) * | 2002-09-20 | 2004-03-24 | Lucent Technologies Inc. | A method, and apparatus, for addressing a message to mobile user terminals |
| US7546145B2 (en) * | 2002-10-15 | 2009-06-09 | Nokia Corporation | Method, network node and system for managing interfaces in a distributed radio access network |
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2005
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141818B (en) * | 2007-10-16 | 2011-08-10 | 华为技术有限公司 | Network cell dwelling and converting method, device and subscriber terminal |
| CN101945390B (en) * | 2009-07-08 | 2013-12-04 | 华为技术有限公司 | Admission control method and device |
| WO2011097919A1 (en) * | 2010-02-10 | 2011-08-18 | 华为技术有限公司 | Method and system for data transmission |
| US8665776B2 (en) | 2010-02-10 | 2014-03-04 | Huawei Technologies Co., Ltd. | Method and system for data transmission |
| CN104519526A (en) * | 2013-09-27 | 2015-04-15 | 华为技术有限公司 | Network access point, network controller, network device, and load control method of network device |
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| CN100450278C (en) | 2009-01-07 |
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