CN102170683B - Communication network stationing method, user equipment and device - Google Patents
Communication network stationing method, user equipment and device Download PDFInfo
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Abstract
The invention discloses a communication network stationing method which comprises the following steps of: providing preferred communication network information of a preferred communication network which is beneficial to communication for user equipment (UE); when the UE is started, judging whether the UE is positioned in a signal covering range of the preferred communication network or not according to the preferred communication network information and stationing to the preferred communication network when confirming that the UE is positioned in the signal covering range of the preferred communication network; when the UE moves from the signal covering range of the original communication network to the signal covering range of the new communication network, judging whether the new communication network has the preferred communication network; if so, stationing the UE to the preferred communication network; otherwise, judging whether a wireless signal derived from the original communication network can be normally received by the UE; if so, still stationing the UE to the original communication network; and otherwise, stationing the UE to the new communication network. Due to the adoption of the method disclosed by the invention, the UE communication signaling flow can be reduced and the communication quality of service (QoS), the communication quality of the UE and the user satisfaction degree are improved.
Description
The application for the applying date be that June 16, application number in 2006 are 200610087098.4, denomination of invention divides an application for the patent application of " a kind of communication network accessing method "
Technical field
The present invention relates to wireless communication field, be specifically related to a kind of communication network accessing method, subscriber equipment and device.
Background technology
Be accompanied by development of Communication Technique, the communication network of evolution will coexist with 2G, 3G communication network; Comparatively speaking, the such communication network of 2G, 3G can be called as not evolution communication network.
Referring to Fig. 1, Fig. 1 adheres to schematic diagram for the communication network of prior art, dotted line wherein represents signaling and connects, not evolution wireless access network (RAN), not evolution Mobility Management Entity (MME) and not evolution user entity (UPE) belong to not evolution communication network, evolution RAN, evolution MME and evolution UPE then belong to the evolution communication network.As seen from Figure 1, subscriber equipment (UE) is arranged in the not signal cover of evolution RAN and evolution RAN, and UE can be by evolution RAN not with evolution MME not, evolution UPE communicate by letter, and UE also can communicate by letter with evolution MME, evolution UPE by evolution RAN.And, to preserve in the home subscriber server (HSS) and comprise the UE positional information in interior UE user profile, connecting system anchor point (AS Anchor) then is the communication entity that the communication service of user's face is provided for UE.
Described MME is used for UE is related to the mobile management of signaling plane, is presented as service universal grouping wireless business supporting node (SGSN) in the 3G communication network usually; Described UPE is used for UE is related to the telecommunication management of user's face, is presented as ggsn (GGSN) in the 3G communication network usually.
When determining to insert which communication network as yet, UE need communicate network and be stationed operation, with the communication network of determining to insert; Afterwards, UE can carry out subsequent operations such as network attachment, paging, initiation business at the communication network of being stationed.
At the network attachment operation, when start, UE need communicate network attachment and operate to reside in the residential quarter of certain communication network; Equally, when UE moves to new communications network by the current former communication network that adheres to, and the UE present position is when being the signal blind zone of former communication network, and UE also needs to communicate the network attachment operation, in the residential quarter that resides in described new communications network.Described blind area refers to that UE can't normally receive the zone of wireless signal; In the blind area, the packet loss that UE receives wireless signal surpasses the packet loss threshold value that sets in advance, and causes UE can't normally receive wireless signal, and therefore the proper communication of UE is relatively seriously influenced.UE can determine whether self can normally receive the wireless signal of certain communication network with prior art, as: UE receives the wireless signal from communication network, and with the packet loss of the wireless signal received and the packet loss threshold value that sets in advance relatively, if the packet loss threshold value is relatively little, UE determines that self can't normally receive the wireless signal of this communication network.
Concrete communication network attachment flow as shown in Figure 2, communication network attachment flow shown in Figure 2 may further comprise the steps:
Step 201: no matter be when start just, still when moving to the signal blind zone of the signal cover of new communications network, former communication network, UE needs to determine be attached in which communication network.Particularly, UE receives wireless signal and the comparison signal intensity of its all residential quarters that can receive, selects a strongest residential quarter of signal strength signal intensity again, and the communication network under this residential quarter is as the new communications network that will be attached to, and resident in this residential quarter.
Step 202:UE is by the base station of the strongest described residential quarter of signal strength signal intensity, and corresponding MME/UPE sends and adheres to request to this base station, and this adheres to UE log-on messages such as comprising UE identify label, former MME/UPE sign in the request at least.Described former MME/UPE is the MME/UPE in the communication network that adhered to last time of UE, preserves the user context information of UE; For former MME/UPE, the corresponding MME/UPE of described cell base station can be called as new MME/UPE.
Step 203: described new MME/UPE receives described adhering to when asking, and reads this former MME/UPE that adheres in the request and identifies, and send the request of UE log-on message to former MME/UPE.
Step 204: during UE log-on message request that former MME/UPE receives to make a fresh start MME/UPE, with the UE log-on message of self storage, send to new MME/UPE at the user context information of UE.
Step 205: new MME/UPE uses UE log-on message, user context information and the UE, the HSS that receive and carries out the subscription authentication operation.
Step 206: new MME/UPE sends the MME registration request that comprises new MME sign at least to HSS.
During MME registration request that step 207:HSS receives to make a fresh start MME/UPE, determining provides service by new MME for UE, and no longer provides service by former MME for UE.And HSS sends UE log-on message delete command to former MME; After former MME receives this order, delete the UE log-on message of self preserving.
Step 208:HSS sends the registration confirmation message that comprises the UE identify label at least to new MME/UPE.
Step 209: when new MME/UPE received from the registration confirmation message of HSS, determining provided service by oneself as UE, and is chosen as the AS Anchor of UE service.
Step 210: new MME/UPE is that UE distributes the temporary identity sign, and this temporary identity sign is carried on to adhere to accepts to send in the message UE.
The temporary identity sign that step 211:UE preserves to make a fresh start MME/UPE, and send to new MME/UPE and to adhere to acknowledge message.
So far, whole communication network attachment flow finishes, and UE successfully is attached in the new communications network.
By the above as seen, when UE communicates the network attachment operation, just according to the definite communication network that will adhere to of the signal strength signal intensity that receives; In fact, to carry out when network is stationed also be to determine the communication network that will be stationed according to the signal strength signal intensity that receives to UE.In this case, if the signal of evolution communication network is not stronger, UE just is stationed and is attached to not evolution communication network; If the signal of evolution communication network is stronger, UE just is stationed and is attached to the evolution communication network.The original intention of this way is in order to guarantee the communication quality of UE, but in the practical application, signal strength signal intensity is not the unique factor that influences the UE communication quality; Comparatively speaking, service quality such as traffic rate, communication delay (QoS) index then is the key factor that influences the UE communication quality.Obviously, only consider that the communication network accessing of signal strength signal intensity and adhering mode are too single; And the communication network that UE is stationed and adheres to based on signal strength signal intensity probably is the relatively poor communication network of service quality in the UE communication network that can be stationed and adhere to, and this will directly influence the follow-up communication quality of UE.
When moving to by common cover regional of the signal of 3G communication network and evolution communication network such as: UE, be stationed and be attached to signal strength signal intensity stronger 3G communication network relatively, but the 3G communication network does not have the height of evolution communication network to the requirement of QoS such as traffic rate, communication delay, and the QoS when this causes UE to carry out the subsequent communications operation in the 3G communication network is relatively poor relatively: traffic rate is relatively low, communication delay is relatively large etc.
Have again, at present at one of evolution trend of communication network be: if UE is stationed and is attached in the relatively poor relatively communication network of communication quality when idle condition, and UE is positioned at communication quality communication network signal cover relatively preferably when idle condition switches to state of activation; UE is preferably in because setting up and is stationed and is attached to communication quality when business switches to state of activation relatively preferably in the communication network so, and sets up to business and finish required communication delay and be less than 100ms from switching to state of activation.Yet, the present delay requirement that also is difficult to satisfy described 100ms.And, movement along with UE, UE can switch frequently in the zone of the not common covering of signal of evolution communication network and evolution communication network, as: when just having started shooting, UE is stationed and is attached to not evolvement network according to signal strength signal intensity, UE is stationed and is attached to evolvement network in the time of will setting up business, UE is stationed and is attached to not evolvement network again according to signal strength signal intensity when returning to idle condition ... so repeatedly.This will cause the signaling traffic of the communication network that UE is stationed and adheres to roll up, the QoS in the time of can reducing UE equally and carry out the subsequent communications operation.The problems referred to above will finally cause the reduction of user satisfaction.
Obviously, prior art can not guarantee well UE be stationed be conducive to most self communication communication network; This makes the UE subsequent attachment behind this communication network, and this communication network can't provide extraordinary communication quality for UE, thereby can reduce user satisfaction.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of communication network accessing method, to improve the communication quality of UE, improves user satisfaction.
Another object of the present invention is to provide another kind of communication network accessing method, to improve the communication quality of UE, improve user satisfaction.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of communication network accessing method, for UE provides the first-selected communication network information that is beneficial to communication, this method also comprises:
UE is stationed first-selected communication network according to described first-selected communication network information.
The described process of being stationed is:
UE judges according to described first-selected communication network information whether self is positioned at the signal cover of first-selected communication network, and is stationed first-selected communication network when determining self to be positioned at the signal cover of first-selected communication network.
For UE provides the method for described first-selected communication network information be:
Directly be arranged at first-selected communication network information among the UE; Or first-selected communication network information sent to UE.
This method comprises: further send new first-selected communication network information to UE, UE upgrades the former first-selected communication network information of self preserving with new first-selected communication network information.
The process that sends described first-selected communication network information to UE comprises:
Send first-selected communication network information with broadcast mode to UE;
Perhaps, in the mobile management flow process that UE carries out, send first-selected communication network information to UE.
Described UE is in idle condition or state of activation.
Described first-selected communication network information is the communication network sign, and then described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, read the communication network sign that comprises in the wireless signal of receiving, and judge in the communication network sign that reads whether have the communication network sign to identify identical with first-selected communication network, if have, UE determines self to be positioned at the signal cover of first-selected communication network, and determines that it is first-selected communication network that the communication network identical with first-selected communication network sign identifies corresponding communication network.
Described first-selected communication network information is first-selected QoS, and then described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, reads the QoS that comprises in the wireless signal of receiving, calculates parameter value poor of the identical parameters that comprises among the QoS read and the first-selected QoS; And will calculate the gained difference and compare with the QoS difference threshold value that sets in advance, the difference that judges whether QoS gained after calculating according to comparative result is minimum relatively and calculate the gained difference less than QoS difference threshold value again, if have, UE determines self to be positioned at the signal cover of first-selected communication network, and the corresponding communication network of wireless signal of determining to comprise described QoS is first-selected communication network.
This method further may further comprise the steps:
When a.UE moved to the signal cover of new communications network by the signal cover of its former communication network of being stationed, whether in new communications network had first-selected communication network, if having, enter step b if judging; Otherwise, enter step c;
B.UE is stationed first-selected communication network, and process ends;
C.UE judges the current wireless signal that whether can normally receive from former communication network, if can, UE still camps in the former communication network; Otherwise UE is stationed in the new communications network.
Described first-selected communication network information is the communication network sign, and then among the step a, described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, read the communication network sign that comprises in the wireless signal of receiving, and judge whether the communication network that reads has the communication network sign identical with first-selected communication network sign and different with former communication network sign in identifying, if have, UE determines that first-selected communication network is arranged in the new communications network, and the described communication network that reads to identify corresponding communication network be first-selected communication network.
Described first-selected communication network information is first-selected QoS, and then among the step a, described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, and reads the QoS that comprises in the wireless signal except former communication network wireless signal wherein, calculates parameter value poor of the identical parameters that comprises among the QoS that reads and the first-selected QoS; And will calculate the gained difference and compare with the QoS difference threshold value that sets in advance, the difference that judges whether QoS gained after calculating according to comparative result is minimum relatively and calculate the gained difference less than QoS difference threshold value again, if have, UE determines that first-selected communication network is arranged in the new communications network, and the corresponding communication network of wireless signal that comprises described QoS is first-selected communication network.
Described UE is in idle condition or state of activation when mobile.
Described first-selected communication network information is the bit field of the first-selected communication network of representative.
The method that described UE is stationed first-selected communication network is:
UE determines will be linked in the first-selected communication network, and monitors the communication information from first-selected communication network.
UE further is attached to first-selected communication network.
Described adherence method may further comprise the steps:
Corresponding new MME/UPE sends and adheres to request A.UE to this base station by the cell base station in the first-selected communication network, and new MME/UPE will receive adheres to request and send to the former MME/UPE that serves for UE in the communication network that the UE last time adheres to;
B. former MME/UPE sends to new MME/UPE with the log-on message at UE, the user context information of self storing, and new MME/UPE sends MME registration request to HSS; During MME registration request that HSS receives to make a fresh start MME/UPE, send registration confirmation message at UE to new MME/UPE;
C. new MME/UPE is that UE distributes the temporary identity sign, and this temporary identity sign is carried on to adhere to accepts to send in the message UE; The temporary identity sign that UE preserves to make a fresh start MME/UPE, and send to new MME/UPE and to adhere to acknowledge message.
The information of other non-first-selected communication network further is provided to UE;
In the time can't normally being stationed first-selected communication network, UE is stationed non-first-selected communication network according to described non-first-selected communication network information.
UE further is attached to described non-first-selected communication network.
Described non-first-selected communication network is in the corresponding non-first-selected communication network of described non-first-selected communication network information, can with any one non-first-selected communication network of UE proper communication;
Perhaps, be in described non-first-selected communication network information, include high relatively network priority and non-first-selected communication network that can proper communication.
Provide the operation of described first-selected communication network information when UE starts shooting, to carry out for UE.
The invention also discloses a kind of communication network accessing method, for UE provides the first-selected communication network information that is beneficial to communication, this method is further comprising the steps of:
Whether when first step .UE moves to the signal cover of new communications network by the signal cover of its former communication network of being stationed, judging has first-selected communication network in the new communications network, if having, enters for second step; Otherwise, entered for the 3rd step;
The second step .UE is stationed first-selected communication network, and process ends;
The 3rd step .UE judges the current wireless signal that whether can normally receive from former communication network, if can, UE still camps in the former communication network; Otherwise UE is stationed in the new communications network.
Described first-selected communication network information is the communication network sign, and then in the first step, described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, read the communication network sign that comprises in the wireless signal of receiving, and judge whether the communication network that reads has the communication network sign identical with first-selected communication network sign and different with former communication network sign in identifying, if have, UE determines that first-selected communication network is arranged in the new communications network, and the described communication network that reads to identify corresponding communication network be first-selected communication network.
Described first-selected communication network information is first-selected QoS, and then in the first step, described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, and reads the QoS that comprises in the wireless signal except former communication network wireless signal wherein, calculates parameter value poor of the identical parameters that comprises among the QoS that reads and the first-selected QoS; And will calculate the gained difference and compare with the QoS difference threshold value that sets in advance, the difference that judges whether QoS gained after calculating according to comparative result is minimum relatively and calculate the gained difference less than QoS difference threshold value again, if have, UE determines that first-selected communication network is arranged in the new communications network, and the corresponding communication network of wireless signal that comprises described QoS is first-selected communication network.
UE further is attached to the communication network of being stationed.
Compared with prior art, communication network accessing method provided by the present invention, no matter be when UE starts shooting, still when UE moves to the signal cover of new communications network by the signal cover of its former communication network of being stationed, UE can be stationed first-selected communication network according to first-selected communication network information as far as possible, this can obviously reduce the signaling traffic of the communication network that UE is stationed, also can obviously improve UE and carry out the subsequent communications QoS in when operation, thereby can obviously improve the communication quality of UE, can also obviously improve user satisfaction.
Description of drawings
Fig. 1 adheres to schematic diagram for the communication network of prior art;
Fig. 2 is the communication network attachment flow figure of prior art;
Fig. 3 is communication network accessing and the attachment flow figure of a preferred embodiment of the present invention;
Fig. 4 is communication network accessing general flow chart of the present invention;
Fig. 5 is a kind of communication network accessing schematic diagram based on Fig. 4;
Fig. 6 is the another kind of communication network accessing schematic diagram based on Fig. 4.
Embodiment
Below in conjunction with drawings and the specific embodiments to the detailed description of the invention.
Communication network accessing method provided by the invention provides the first-selected communication network information of the first-selected communication network that is beneficial to communication for UE; UE judges according to described first-selected communication network information whether self is positioned at the signal cover of first-selected communication network when start, and when determining self to be positioned at the signal cover of first-selected communication network, is stationed first-selected communication network.And whether when UE moves to the new communications network signal cover by former communication network signal cover, judging has first-selected communication network in the new communications network, if having, UE is stationed first-selected communication network; Otherwise UE judges the current wireless signal that whether can normally receive from former communication network, if can, UE still camps in the former communication network; Otherwise UE is stationed in the new communications network.
Another kind of communication network accessing method provided by the invention, whether when UE moves to the new communications network signal cover by former communication network signal cover, judging has first-selected communication network in the new communications network, if having, UE is stationed first-selected communication network; Otherwise UE judges the current wireless signal that whether can normally receive from former communication network, if can, UE still camps in the former communication network; Otherwise UE is stationed in the new communications network.
Referring to Fig. 3, Fig. 3 is communication network accessing and the attachment flow figure of a preferred embodiment of the present invention.Before carrying out flow process shown in Figure 3, need to arrange for UE in advance and provide the information that can provide better relatively communication quality for UE, be conducive to the first-selected communication network of UE communication; And, normally when UE starts shooting, carry out for UE provides the operation of described first-selected communication network information.
Described first-selected communication network information can have various ways, as: the communication network sign of first-selected communication network, the first-selected QoS of first-selected communication network etc.Usually, first-selected communication network information can when dispatching from the factory, UE directly be set in UE; Also first-selected communication network information can be set in communication equipments such as HSS, the first-selected communication network information that will arrange again sends to UE by Access Network in modes such as broadcasting.No matter where arrange, also no matter provide in which way, as long as can finally make UE know first-selected communication network information; Like this, just can guarantee that UE uses the communication network that first-selected communication network information selection should be stationed, to obtain communication service relatively preferably.
Such as: the communication network sign that more is conducive to the evolvement network of UE communication is set to first-selected communication network information, make UE be stationed evolvement network according to the communication network sign of evolvement network, have better communication quality when in evolvement network, carrying out subsequent communications to guarantee UE.Perhaps, be set to first-selected communication network information with the QoS soft, that hardware configuration is complementary of UE, the QoS that the communication network that UE is stationed provides and the QoS of setting are the most approaching, have better communication quality when carrying out subsequent communications in this communication network to guarantee UE.
Certainly, in actual applications, also can first-selected communication network information be set with the bit field that represents communication network, as: it is the field 001 of 3 bits that first-selected communication network information is set, and the first-selected communication network that represents UE is evolvement network; It is the field 010 of 3 bits that first-selected communication network information is set, and the first-selected communication network that represents UE is Global Systems for Mobile communications (GSM) networks; It is the field 100 of 3 bits that first-selected communication network information is set, and the first-selected communication network that represents UE is World Interoperability for Microwave Access, WiMax (WiMax) network.In fact, with the bit field that represents communication network the mode of first-selected communication network information is set, the mode with first-selected communication network information is set with the communication network sign has same principle.
Except providing first-selected communication network information with broadcast mode to UE, can also in the mobile management flow processs such as position registration that UE carries out, provide first-selected communication network information to UE, as: when UE started shooting or roams into new lane place, UE can initiate the registration process of positional information to network side; In this process, the first-selected communication network information at UE of preserving in the equipment such as HSS can be carried in the acceptance message formats such as (Accept) and send to UE.
After finishing the setting of above-mentioned first-selected communication network information and providing, just can carry out flow process shown in Figure 3, this flow process may further comprise the steps:
Step 301: according to the first-selected communication network information of knowing, UE determines the communication network that will be stationed and camps in this communication network.
At this moment, be the situation of first-selected communication network sign at first-selected communication network information, the method for the definite communication network that will be stationed comprises:
UE receives the wireless signal of its all residential quarters that can receive, read the communication network sign that comprises in the wireless signal of receiving, and judge in the communication network sign that reads whether have the communication network sign to identify identical with first-selected communication network, if have, UE determines self to be positioned at the signal cover of first-selected communication network, and determining that it is first-selected communication network that the communication network identical with first-selected communication network sign identifies corresponding communication network, UE will be stationed this first-selection communication network; Otherwise UE uses prior art and determines to be stationed the communication network that the last time once was stationed, and perhaps will be stationed the communication network that any one can support the UE proper communication.Certainly, if UE can't normally receive the wireless signal of last communication network of once being stationed, UE then determines to be stationed the communication network that any one can support its proper communication.
Having, is the situation of first-selected QoS at first-selected communication network information again, and the method for the definite communication network that will be stationed comprises:
UE receives the wireless signal of its all residential quarters that can receive, reads the QoS that comprises in the wireless signal of receiving, calculates parameter value poor of the identical parameters that comprises among the QoS read and the first-selected QoS; And will calculate the gained difference and compare with the QoS difference threshold value that sets in advance, the difference that judges whether QoS gained after calculating according to comparative result is minimum relatively and calculate the gained difference less than QoS difference threshold value again, if have, UE determines self to be positioned at the signal cover of first-selected communication network, and the corresponding communication network of wireless signal of determining to comprise described QoS is first-selected communication network, and will be stationed the corresponding communication network of this wireless signal; Otherwise the corresponding communication network of wireless signal that UE determines to comprise this QoS is not first-selected communication network, and will be stationed the communication network that the last time once was stationed, and perhaps will be stationed the communication network that any one can support the UE proper communication.
As seen, the method for the definite communication network that will be stationed of UE can be summarized as: UE determines according to the described first-selected communication network information that provides whether self is positioned at the signal cover of first-selected communication network, if UE determines to be stationed first-selected communication network; Otherwise UE determines to use prior art and communicates network and be stationed.
In like manner, when UE moved to the signal cover of new communications network by the signal cover of its former communication network of being stationed, UE also needed to determine the communication network that will be stationed according to the described first-selected communication network information that provides usually.
At this moment, be the situation of first-selected communication network sign at first-selected communication network information, the method for the definite communication network that will be stationed comprises:
UE receives the wireless signal of its all residential quarters that can receive, read the communication network sign that comprises in the wireless signal of receiving, and judge whether the communication network that reads has the communication network sign identical with first-selected communication network sign and different with former communication network sign in identifying, if have, UE determines that first-selected communication network is arranged in the new communications network, and it is first-selected communication network that the described communication network that reads identifies corresponding communication network, and UE will be stationed this first-selection communication network; Otherwise UE further judges the current wireless signal that whether can normally receive from former communication network, if can, UE determines not carry out follow-up any operation of being stationed, and still camps in the former communication network; Otherwise UE determines and will be stationed in the new communications network.
In actual applications, if described new communications network is a plurality of communication networks, UE then needs finally to select one from these a plurality of communication networks, as the communication network that will be stationed.Described selection mode can be to choose wantonly etc.
Having, is the situation of first-selected QoS at first-selected communication network information again, and the method for the definite communication network that will be stationed comprises:
UE receives the wireless signal of its all residential quarters that can receive, and reads the QoS that comprises in the wireless signal except former communication network wireless signal wherein, calculates parameter value poor of the identical parameters that comprises among the QoS that reads and the first-selected QoS; And will calculate the gained difference and compare with the QoS difference threshold value that sets in advance, the difference that judges whether QoS gained after calculating according to comparative result is minimum relatively and calculate the gained difference less than QoS difference threshold value again, if have, UE determines that first-selected communication network is arranged in the new communications network, and the corresponding communication network of the wireless signal that comprises described QoS is first-selected communication network, and UE will be stationed this first-selection communication network; Otherwise UE further judges the current wireless signal that whether can normally receive from former communication network, if can, UE determines not carry out follow-up any operation of being stationed, and still camps in the former communication network; Otherwise UE determines and will be stationed in the new communications network.
By as seen above-mentioned, when the signal cover by former communication network moves to the signal cover of new communications network, the method of the definite communication network that will be stationed of UE can be summarized as: whether UE judges first-selected communication network in the new communications network, if having, UE is stationed first-selected communication network; Otherwise UE further judges the current wireless signal that whether can normally receive from former communication network, if can, UE determines not carry out follow-up any operation of being stationed, and still camps in the former communication network; If can not, UE determines and will be stationed in the new communications network.
When communication network that the method in the applying step 301 has been determined to be stationed, UE carries out the follow-up operation of being stationed at the communication network that will be stationed.
Step 302: when finishing the UE start that network is stationed, UE can further carry out the network attachment operation.Concrete attach operation comprises that step 302 is to step 312; And step 302 is basic identical to step 210 to the step 202 among step 310 and Fig. 2, and step 312 item is identical with step 211 among Fig. 2.Specifically describe step 302 below to step 312:
Usually by the base station of strong residential quarter of signal strength signal intensity in the communication network that will adhere to, corresponding MME/UPE sends and adheres to request UE to this base station, and this adheres to UE log-on messages such as comprising UE identify label, former MME/UPE sign in the request at least.Described former MME/UPE is the MME/UPE in the communication network that adhered to last time of UE, preserves the user context information of UE; For former MME/UPE, the corresponding MME/UPE of the cell base station in the communication network that UE will adhere to can be called as new MME/UPE.
Step 303: described new MME/UPE receives described adhering to when asking, and reads this former MME/UPE that adheres in the request and identifies, and send the request of UE log-on message to former MME/UPE.
Step 304: during UE log-on message request that former MME/UPE receives to make a fresh start MME/UPE, with the UE log-on message of self storage, send to new MME/UPE at the user context information of UE; This user context information is used for supporting that UE carries out follow-up proper communication.
Step 305: new MME/UPE uses UE log-on message and the user context information of receiving and UE, HSS and carries out the subscription authentication operation.
Step 306: new MME/UPE sends the MME registration request that comprises new MME sign at least to HSS.
During MME registration request that step 307:HSS receives to make a fresh start MME/UPE, determining provides service by new MME for UE, and no longer provides service by former MME for UE.And HSS sends UE log-on message delete command to former MME; After former MME receives this order, delete the UE log-on message of self preserving.
Step 308:HSS sends the registration confirmation message that comprises the UE identify label at least to new MME/UPE.If described first-selected communication network information is arranged among the HSS, so also can be in HSS real-time or periodically the first-selected communication network information that arranges is upgraded, and the first-selected communication network information that will upgrade carry with registration confirmation message in send to new MME/UPE.
Why first-selected communication network information being upgraded, is because the communication environment of communication network is constantly to change, and this causes same communication network to be difficult to provide communication quality preferably for UE always.Therefore, when certain communication network no longer is first-selected communication network because communication environment changes, will upgrade accordingly first-selected communication network information, the communication network to guarantee that UE is stationed according to the first-selected communication network information after upgrading still can provide communication quality preferably for UE.
Step 309: when new MME/UPE received from the registration confirmation message of HSS, determining provided service by oneself as UE, and is chosen as the AS Anchor of UE service.Certainly, new MME/UPE can also use prior art and carries out operations such as UE communication QoS configuration, IP routing configuration.
Step 310: new MME/UPE is that UE distributes the temporary identity sign, and this temporary identity sign is carried on to adhere to accepts to send in the message UE.Certainly, if new MME/UPE has received that from the first-selected communication network information after the renewal of HSS new MME/UPE also will be carried on the first-selected communication network information of receiving to adhere to and accept to send in the message UE.
UE reads adhering to of receiving and accepts message, accepts to comprise in the message first-selected communication network information if adhere to, and then enters step 311; Otherwise, directly enter step 312.
The first-selected communication network information that step 311:UE preserves to make a fresh start MME/UPE.Certainly, if the first-selected communication network information of preserving before the first-selected communication network information of the MME/UPE that makes a fresh start and the UE is different, UE then be used for the making a fresh start first-selected communication network information of MME/UPE is upgraded the first-selected communication network information of self preserving.
The temporary identity sign that step 312:UE preserves to make a fresh start MME/UPE, and send to new MME/UPE and to adhere to acknowledge message.
So far, whole communication network attachment flow finishes, and UE successfully is attached in its communication network of determining to adhere to.
In Fig. 2, the operation shown in Figure 3, the communication interaction between UPE and other communication entity directly carries out, or transmit by MME.
Described as can be known by the flow process among Fig. 3, UE can communicate network according to first-selected communication network information and be stationed operation, and can further communicate the network attachment operation when start; Afterwards, movement along with UE, when UE moved to the signal cover of new communications network by the signal cover of former communication network, UE also can communicate network according to described first-selected communication network information and be stationed operation, the stepping of the going forward side by side communication network attach operation that works.In actual applications, the UE communication network attach operation of carrying out is normally carried out when UE is in idle condition; Certainly, UE can carry out described communication network attach operation equally when being in state of activation.
By at the description of Fig. 3 as can be known, the communication network accessing flow process of UE can briefly be described by Fig. 4, flow process shown in Figure 4 may further comprise the steps:
Step 401 is to step 402: for UE provides first-selected communication network information, and judge according to described first-selected communication network information whether self is positioned at the signal cover of first-selected communication network by UE, if enter step 403; Otherwise, enter step 404.
Step 403:UE is stationed first-selected communication network.
Step 404:UE uses prior art and communicates network and be stationed operation, is stationed the communication network that the last time once was stationed as: UE, perhaps is stationed the communication network that any one can support the UE proper communication.
Whether when step 405 moves to the signal cover of new communications network to step 406:UE by the signal cover of former communication network, judging has first-selected communication network, if having, enter step 407 in the new communications network; Otherwise, directly enter step 408.
Step 407:UE is stationed first-selected communication network, and process ends.
Step 408:UE judges whether normally to receive the wireless signal from former communication network, if can, enter step 409; Otherwise, directly enter step 410.
Step 409:UE does not carry out follow-up any operation of being stationed, still camps in the former communication network, and process ends.
Step 410:UE uses prior art and is stationed in the new communications network.
Certainly, in above-mentioned steps, UE can also further be attached to this communication network after being stationed communication network.
In actual applications, except first-selected communication network information is provided to UE, can also further provide the information of other non-first-selected communication network to UE; When UE occurring not in first-selected communication network signal cover, when not supporting that first-selected communication network or authentication such as do not pass through at situation, UE then can't normally be stationed first-selected communication network.In this case, UE can according to described non-first-selected communication network information be stationed in the corresponding non-first-selected communication network of non-first-selected communication network information can with certain non-first-selected communication network of UE proper communication; Or according to the network priority that comprises in the described non-first-selected communication network information, be stationed high relatively and the non-first-selected communication network that can proper communication of network priority.
By the above as seen, no matter be when start, still when the signal cover by former communication network moves to the signal cover of new communications network, UE can be stationed first-selected communication network according to first-selected communication network information as far as possible, can be that the follow-up communication of UE provides communication quality preferably to guarantee first-selected communication network.And, because UE is stationed first-selected communication network as far as possible, adds when UE is follow-up to carry out the network attachment operation and can be attached to the network that it is stationed; Just needn't carry out the network attachment operation when therefore UE switches to state of activation from idle condition in addition, but can continue to be attached in the first-selected communication network of being stationed and adhering to.This can obviously reduce the signaling traffic of the accompanying communication network of UE, also can obviously improve UE and carry out the subsequent communications QoS in when operation, thereby can obviously improve the communication quality of UE, can also obviously improve user satisfaction.
What described former communication network and new communications network were used is different communication access technologies.
Understand for helping, below application drawing 5, Fig. 6 schematic diagram when briefly describing UE and communicating network and be stationed.Wherein, Fig. 5 is the communication network accessing schematic diagram of UE when moving from the evolution communication network to the 2G/3G communication network, and Fig. 6 is the communication network accessing schematic diagram of UE when moving from the 2G/3G communication network to the evolution communication network.In Fig. 5, Fig. 6, dotted line represents signaling and connects, and evolution UPE, evolution MME, evolution base station all belong to the evolution communication network, and tracking area (TA) 1 represents the useful signal coverage of evolution communication network; 2G/3G UPE, 2G/3G MME, 2G/3G base station all belong to the 2G/3G communication network, and TA2 represents the useful signal coverage of 2G/3G communication network.Suppose that the evolution communication network is first-selected communication network, and the 2G/3G communication network not first-selected communication network.
Among Fig. 5, when UE was positioned at the P1 position, UE camped in the evolution communication network; When UE moved to the P2 position by the P1 position, UE still camped in the evolution communication network; When UE moves to the P3 position by the P2 position, because UE is in the useful signal coverage of evolution communication network, cause UE can't normally receive the wireless signal of evolution communication network, UE thereby be stationed in the 2G/3G communication network.
Among Fig. 6, when UE was positioned at the P4 position, UE camped in the 2G/3G communication network; When UE moves to the P5 position by the P4 position, though UE still can normally receive the wireless signal of 2G/3G communication network, because the signal cover that UE has entered the evolution communication network, so UE is stationed in the evolution communication network; When UE moved to the P6 position by the P5 position, UE still camped in the evolution communication network.
In the above description, when UE determines self to be positioned at the signal cover of first-selected communication network, can be attached to first-selected communication network; Otherwise UE then can be attached to other non-first-selected communication network.Yet in actual applications, when UE determines self to be positioned at the signal cover of first-selected communication network, not necessarily just be attached to first-selected communication network immediately, be stationed first-selected communication network earlier and can use prior art usually; In like manner, when UE determined that self is not positioned at the signal cover of first-selected communication network, UE also may not necessarily be attached to other non-first-selected communication network immediately, was stationed non-first-selected communication network earlier but use prior art.After being stationed communication network, UE just can carry out subsequent operations such as network attachment, paging, initiation business.
As seen, UE can be stationed first-selected communication network as far as possible; Based on this, when the UE that is stationed first-selected communication network will carry out follow-up network attachment operation, just will inevitably be attached to first-selected communication network.And network is stationed and is operated the operation that UE normally must carry out; And network attachment is operated one in the numerous subsequent operations that just can carry out after UE is stationed communication network, is not to be the operation that UE must carry out.
Particularly, no matter at the first-selected communication network first-selected communication network of right and wrong also, the network that UE carries out is stationed operation and is generally:
UE determines and will be linked in the communication network, and monitoring is from the communication informations such as broadcast message of communication network.
By the above as can be seen, communication network accessing method provided by the present invention can obviously improve the communication quality of UE, can also obviously improve user satisfaction.
A kind of communication network accessing method, this method are included as user equipment (UE) and provide the first-selected communication network information that is beneficial to communication, and this method also comprises:
UE is stationed first-selected communication network according to described first-selected communication network information, and described first-selected communication network is the communication network that UE at first selects when being stationed, and the described process of being stationed is:
UE judges according to described first-selected communication network information whether self is positioned at the signal cover of first-selected communication network, and is stationed first-selected communication network when determining self to be positioned at the signal cover of first-selected communication network.
In one embodiment, for UE provides the method for described first-selected communication network information be:
Directly be arranged at first-selected communication network information among the UE; Or first-selected communication network information sent to UE.
In one embodiment, this method comprises: further send new first-selected communication network information to UE, UE upgrades the former first-selected communication network information of self preserving with new first-selected communication network information.
In one embodiment, the process that sends described first-selected communication network information to UE comprises:
Send first-selected communication network information with broadcast mode to UE, perhaps, in the mobile management flow process that UE carries out, send first-selected communication network information to UE.
In one embodiment, described UE is in idle condition or state of activation.
In one embodiment, described first-selected communication network information is the communication network sign, and then described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, read the communication network sign that comprises in the wireless signal of receiving, and judge in the communication network sign that reads whether have the communication network sign to identify identical with first-selected communication network, if have, UE determines self to be positioned at the signal cover of first-selected communication network, and determines that it is first-selected communication network that the communication network identical with first-selected communication network sign identifies corresponding communication network.
In one embodiment, described first-selected communication network information is first-selected service quality QoS, and then described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, reads the QoS that comprises in the wireless signal of receiving, calculates parameter value poor of the identical parameters that comprises among the QoS read and the first-selected QoS; And will calculate the gained difference and compare with the QoS difference threshold value that sets in advance, the difference that judges whether QoS gained after calculating according to comparative result is minimum relatively and calculate the gained difference less than QoS difference threshold value again, if have, UE determines self to be positioned at the signal cover of first-selected communication network, and the corresponding communication network of wireless signal of determining to comprise described QoS is first-selected communication network.
In one embodiment, this method further may further comprise the steps:
When a.UE moved to the signal cover of new communications network by the signal cover of its former communication network of being stationed, whether in new communications network had first-selected communication network, if having, enter step b if judging; Otherwise, enter step c;
B.UE is stationed first-selected communication network, and process ends;
C.UE judges the current wireless signal that whether can normally receive from former communication network, if can, UE still camps in the former communication network; Otherwise UE is stationed in the new communications network.
9, method as claimed in claim 8 is characterized in that, described first-selected communication network information is the communication network sign, and then among the step a, described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, read the communication network sign that comprises in the wireless signal of receiving, and judge whether the communication network that reads has the communication network sign identical with first-selected communication network sign and different with former communication network sign in identifying, if have, UE determines that first-selected communication network is arranged in the new communications network, and the described communication network that reads to identify corresponding communication network be first-selected communication network.
In one embodiment, described first-selected communication network information is first-selected QoS, and then among the step a, described determination methods comprises:
UE receives the wireless signal of its all residential quarters that can receive, and reads the QoS that comprises in the wireless signal except former communication network wireless signal wherein, calculates parameter value poor of the identical parameters that comprises among the QoS that reads and the first-selected QoS; And will calculate the gained difference and compare with the QoS difference threshold value that sets in advance, the difference that judges whether QoS gained after calculating according to comparative result is minimum relatively and calculate the gained difference less than QoS difference threshold value again, if have, UE determines that first-selected communication network is arranged in the new communications network, and the corresponding communication network of wireless signal that comprises described QoS is first-selected communication network.
In one embodiment, described UE is in idle condition or state of activation when mobile.
In one embodiment, described first-selected communication network information is the bit field of the first-selected communication network of representative.
In one embodiment, described UE is stationed the method for first-selected communication network and is:
UE determines will be linked in the first-selected communication network, and monitors the communication information from first-selected communication network.
In one embodiment, UE further is attached to first-selected communication network.
Described adherence method may further comprise the steps:
Corresponding new Mobility Management Entity MME/ user entity UPE sends and adheres to request A.UE to this base station by the cell base station in the first-selected communication network, and new MME/UPE will receive adheres to request and send to the former MME/UPE that serves for UE in the communication network that the UE last time adheres to;
B. former MME/UPE sends to new MME/UPE with the log-on message at UE, the user context information of self storing, and new MME/UPE sends MME registration request to home subscriber server HSS; During MME registration request that HSS receives to make a fresh start MME/UPE, send registration confirmation message at UE to new MME/UPE;
C. new MME/UPE is that UE distributes the temporary identity sign, and this temporary identity sign is carried on to adhere to accepts to send in the message UE; The temporary identity sign that UE preserves to make a fresh start MME/UPE, and send to new MME/UPE and to adhere to acknowledge message.
In one embodiment, this method further provides the information of other non-first-selected communication network to UE;
In the time can't normally being stationed first-selected communication network, UE is stationed non-first-selected communication network according to described non-first-selected communication network information.
In one embodiment, UE further is attached to described non-first-selected communication network.
Described non-first-selected communication network is in the corresponding non-first-selected communication network of described non-first-selected communication network information, can with any one non-first-selected communication network of UE proper communication, perhaps, be in described non-first-selected communication network information, include high relatively network priority and non-first-selected communication network that can proper communication.
In one embodiment, for providing the operation of described first-selected communication network information, UE when UE starts shooting, carries out.
Claims (1)
1. a communication network accessing method is characterized in that, user equipment (UE) obtains the first-selected communication network information that is conducive to communicate by letter, and this method also comprises:
Described UE is stationed first-selected communication network according to described first-selected communication network information, and described first-selected communication network is the communication network that described UE at first selects when being stationed;
The described process of being stationed is:
Described UE judges according to described first-selected communication network information whether described UE is positioned at the signal cover of described first-selected communication network, and is stationed described first-selected communication network when definite described UE is positioned at the signal cover of described first-selected communication network;
Described UE further is attached to first-selected communication network;
Described adherence method may further comprise the steps:
A. corresponding new Mobility Management Entity MME/ user entity UPE sends and adheres to request described UE to this base station by the cell base station in the first-selected communication network, and new MME/UPE will receive adheres to request and send in the communication network that the described UE last time adheres to former MME/UPE for described UE service;
B. former MME/UPE sends to new MME/UPE with the log-on message at described UE, the user context information of self storing, and new MME/UPE sends MME registration request to home subscriber server HSS; During MME registration request that HSS receives to make a fresh start MME/UPE, send registration confirmation message at described UE to new MME/UPE;
C. new MME/UPE is that described UE distributes the temporary identity sign, and this temporary identity sign is carried on to adhere to accepts to send in the message described UE; The temporary identity sign that described UE preserves to make a fresh start MME/UPE, and send to new MME/UPE and to adhere to acknowledge message.
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