CN103686884A - Method, system and base station, and webmaster for transmitting RLF information - Google Patents
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Abstract
The invention discloses a method for transmitting RLF information. The method comprises that a second cell receives radio link failure RLF information from UE; that the second cell transmits the RLF information to a webmaster which transmits the RLF information to a first cell correlative to the RLF information or discards the RLF information, wherein the second cell and the first cell belong to a same network, the RLF information is generated when RLF occurs in the first cell in a heterogeneous network switching process of the UE. The invention also accordingly discloses a system and base station, and a webmaster for transmitting RLF information. RLF information can be transmitted even though an X2 interface is not established between two cells. Thus, mobility parameter optimization is facilitated, switching success rate is increased, user call drop caused by improper switching s prevented, and system resource is saved.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of method, system and base station, webmaster of the RLF of transmission information.
Background technology
In mobile communications network, because mobility parameters arranges improperly, may cause that switching time is improper, for example, when Target cell signal is enough good, does not just carry out and switch, or also do not trigger and switch when cell-of-origin signal is on duty mutually, this often causes handoff failure or Radio Link Failure, and may cause call drop, thereby reduced the service quality of network, and bringing bad experience to user, these failure scenes mainly comprise: switch too early, switched evening, be switched to wrong cell and pingpang handoff.
In order to reduce the generation of handoff failure, reduce the conversation loss that improper switching causes, and reduce unnecessary switching, avoid these to switch the invalid use to system resource, mobility parameters self-optimizing is one of LTE system self-organizing network (Self-Organized Network, SON) sixty-four dollar question to be solved.
Mobile robustness optimization (Mobility Robustness Optimization, MRO) function mainly solves switching problem and the cell reselection problem existing in LTE network, MRO is divided into Intra-LTE and Inter-RAT two large divisions, carries out respectively mobility parameters optimization between the intrasystem mobility parameters optimization of LTE and LTE and other system.
Existing standard RAN3 group switches (for example from LTE network, be switched to 2G/3G network or be switched to LTE network from 2G/3G network) to heterogeneous network and unsuccessfully judges and do standardization, the scheme proposing is at present: in handoff procedure, when UE is at LTE network generation Radio Link Failure (Radio link failure, RLF), time, UE preserves corresponding RLF message; Afterwards, UE carries out sending RRC reconstruction message GeiLTE community or sending RRC connection message to 2G/3G community after Cell searching, if after RLF, UE is reconnected in LTE community, UE reports RLF information to current LTE community at once, and current LTE community sends to RLF information RLF LTE community occurs; If after RLF, UE connects in 2G/3G community, and UE preserves RLF information, until described UE returns to LTE community, then reports RLF information to current LTE community, and current LTE community sends to RLF information RLF LTE community occurs.
Scheme based on existing proposition, if there is RLF in LTE community A, and UE is reconnected in LTE community B and reports RLF, community B need to send RLF indication GeiLTE community A by X2 interface, if and do not set up X2 interface between the A HeLTE community B of LTE community, LTE community B cannot send RLF information GeiLTE community A so, thereby be unfavorable for that LTE community A carries out mobility parameters optimization, and then be unfavorable for the conversation loss that improves handover success rate, avoid improper switching to cause, and save system resource.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method, system and base station, webmaster of the RLF of transmission information, the conversation loss that can improve handover success rate, avoid improper switching to cause, and save system resource.
For achieving the above object, technical scheme of the present invention is achieved in that
A method that sends RLF information, comprising:
The second community receives the Radio Link Failure RLF information from UE;
Described the second community is sent to webmaster by described RLF information, by described webmaster, described RLF information is sent to first community relevant to described RLF information or abandons described RLF information, wherein, described the second community and described the first community belong to consolidated network, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community.
Before described the second community receives the RLF information from UE, the method also comprises:
In heterogeneous network handoff procedure, there is RLF in the first community in UE, preserves corresponding RLF information;
Described UE, after the second community connects, sends to described the second community by the RLF information of described preservation.
After described the second community receives the RLF information from UE, the method also comprises:
Described the second community judges between self first community relevant to described RLF information whether set up X2 interface, judges and does not set up X2 interface, described RLF information is sent to webmaster.
Described webmaster sends to described RLF information first community relevant to described RLF information or abandons described RLF information:
Described webmaster judges whether described RLF information is effective information for handover optimization, judges that described RLF information is effective information for handover optimization, records described RLF information and described RLF information is transmitted to first community relevant to described RLF information; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
Described RLF information comprises the time that RLF occurs, and described webmaster judges whether described RLF information is that effective information is for handover optimization:
Whether webmaster judgement, from the time of described generation RLF to receiving the time period of described RLF information, has taked handover optimization means, if do not take handover optimization means, judges that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
Described heterogeneous network switches to from LTE network and is switched to 2G/3G network or is switched to LTE network from 2G/3G network,
Described the second community and the first community belong to LTE network.
A base station, comprises receiver module and sending module; Wherein,
Described receiver module, for receiving the RLF information from UE;
Described sending module, is sent to webmaster for the RLF information that described receiver module is received, and by described webmaster, described RLF information is sent to the base station relevant to described RLF information or abandons described RLF information.
Described base station also comprises judge module,
Described judge module, for judging between the base station that described base station is relevant to the RLF information of receiver module reception whether set up X2 interface;
Described sending module, while not setting up X2 interface specifically for judging at described judge module between the base station that RLF information that described base station and receiver module receive is relevant, is sent to webmaster by described RLF information.
A webmaster, comprising: receiver module and RLF message processing module; Wherein,
Described receiver module, for receiving the RLF information from base station;
Described RLF message processing module, sends to the base station relevant to described RLF information or abandons described RLF information for the RLF information that receiver module is received.
Described RLF message processing module, specifically for judging whether described RLF information is effective information for handover optimization, judge that described RLF information is effective information for handover optimization, record described RLF information and described RLF information is transmitted to first community relevant to described RLF information; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
Described RLF information comprises the time that RLF occurs,
Described RLF message processing module, specifically for judgement, to receiver module, receive the time period of described RLF information from the time of described generation RLF, whether taked handover optimization means, if do not take handover optimization means, judged that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
A system that sends RLF information, comprising: UE, the first base station, the second base station and webmaster; Wherein,
Described UE, sends RLF information for the second base station under the second community to current connection;
Described the second base station, for receiving the RLF information from UE, afterwards, is sent to webmaster by described RLF information, wherein, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community;
Described webmaster, for described RLF information being sent to the first base station under the first community relevant to described RLF information or abandoning described RLF information, wherein, described the second community and described the first community belong to consolidated network;
Described the first base station, for receiving the RLF information from webmaster, and carries out handover optimization according to described RLF information.
Described UE, specifically in heterogeneous network handoff procedure, while there is RLF in the first community, preserves corresponding RLF information; And after the second community connects, the RLF information of described preservation is sent to described the second base station.
Described the second base station, after the RLF information receiving from UE, judge self with the first base station between whether set up X2 interface, X2 interface is not set up in judgement, described RLF information is sent to webmaster.
Described webmaster, specifically for judging whether described RLF information is effective information for handover optimization, judges that described RLF information is effective information for handover optimization, records described RLF information and described RLF information is transmitted to the first base station; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
Described RLF information comprises the time that RLF occurs,
Whether described webmaster, from the time of described generation RLF to receiving the time period of described RLF information, taked handover optimization means specifically for judgement, if do not take handover optimization means, judges that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
A kind of method, system and base station, webmaster that sends RLF information of the present invention, the second community receives the Radio Link Failure RLF information from UE; Described the second community is sent to webmaster by described RLF information, by described webmaster, described RLF information is sent to first community relevant to described RLF information or abandons described RLF information, wherein, described the second community and described the first community belong to consolidated network, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community.According to such scheme, even if X2 interface is not set up in two minizones, also can transmit RLF information, thereby be conducive to carry out mobility parameters optimization, the conversation loss of improve handover success rate, avoiding improper switching to cause, and save system resource.
Accompanying drawing explanation
Fig. 1 is a kind of method flow schematic diagram that sends RLF information of the embodiment of the present invention;
Fig. 2 is a kind of method flow schematic diagram that sends RLF information of another embodiment of the present invention;
Fig. 3 is a kind of method flow schematic diagram that sends RLF information of yet another embodiment of the invention;
Fig. 4 is a kind of architecture of base station schematic diagram of the embodiment of the present invention;
Fig. 5 is a kind of architecture of base station schematic diagram of another embodiment of the present invention;
Fig. 6 is a kind of network management framework schematic diagram of the embodiment of the present invention;
Fig. 7 is a kind of system configuration schematic diagram that sends RLF information of the embodiment of the present invention;
Fig. 8 sends the schematic flow sheet of RLF information in the embodiment of the present invention 1;
Fig. 9 sends the schematic flow sheet of RLF information in the embodiment of the present invention 2.
Embodiment
Basic thought of the present invention is: the second community receives the Radio Link Failure RLF information from UE; Described the second community is sent to webmaster by described RLF information, by described webmaster, described RLF information is sent to first community relevant to described RLF information or abandons described RLF information, wherein, described the second community and described the first community belong to consolidated network, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community.
Fig. 1 is a kind of method flow schematic diagram that sends RLF information of the embodiment of the present invention, and as shown in Figure 1, this flow process comprises:
Step 101: the second community receives the Radio Link Failure RLF information from UE;
Step 102: described the second community is sent to webmaster by described RLF information;
Step 103: described webmaster sends to described RLF information first community relevant to described RLF information or abandons described RLF information.
Here, described the second community and the first community belong to consolidated network, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community.
Optionally, step 103 is specially: described webmaster judges whether described RLF information is effective information for handover optimization, judge that described RLF information is effective information for handover optimization, record described RLF information and described RLF information is transmitted to first community relevant to described RLF information; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
It should be noted that, RLF information generally comprises current area address information and the signal strength signal intensity that RLF occurs, and in addition, if RLF switches, causes, RFL information can comprise address, Target cell, source and the signal strength signal intensity of switching.
Optionally, described RLF information comprises the time that RLF occurs, described webmaster judges whether described RLF information is that effective information is for handover optimization: webmaster judgement is from the time of described generation RLF to receiving the time period of described RLF information, handover optimization means whether have been taked, if do not take handover optimization means, judge that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
Optionally, as shown in Figure 2, before step 101, the method also comprises:
Step 100 ': in heterogeneous network handoff procedure, there is RLF in the first community in UE, preserves corresponding RLF information;
Step 100: described UE, after the second community connects, sends to described the second community by the RLF information of described preservation.
Optionally, as shown in Figure 3, after step 101, the method also comprises:
Step 102 ': described the second community judges between self first community relevant to described RLF information whether set up X2 interface, judges and does not set up X2 interface, described RLF information is sent to webmaster.
Here, if the X2 interface of setting up between the second community judgement self and the first community is carried out existing procedure, from described X2 interface, forward RLF information.
Optionally, described heterogeneous network switches to from LTE network and is switched to 2G/3G network or is switched to LTE network from 2G/3G network, and described the second community and the first community belong to LTE network.
The embodiment of the present invention has also correspondingly proposed a kind of base station, and as shown in Figure 4, this base station comprises receiver module and sending module; Wherein,
Described receiver module, for receiving the RLF information from UE;
Described sending module, is sent to webmaster for the RLF information that described receiver module is received, and by described webmaster, described RLF information is sent to the base station relevant to described RLF information or abandons described RLF information.
Optionally, as shown in Figure 5, described base station also comprises judge module,
Described judge module, for judging between the base station that described base station is relevant to the RLF information of receiver module reception whether set up X2 interface;
Described sending module, while not setting up X2 interface specifically for judging at described judge module between the base station that RLF information that described base station and receiver module receive is relevant, is sent to webmaster by described RLF information.
The embodiment of the present invention has also correspondingly proposed a kind of webmaster, and as shown in Figure 6, this webmaster comprises: receiver module and RLF message processing module; Wherein,
Described receiver module, for receiving the RLF information from base station;
Described RLF message processing module, sends to the base station relevant to described RLF information or abandons described RLF information for the RLF information that receiver module is received.
Optionally, described RLF message processing module, specifically for judging whether described RLF information is effective information for handover optimization, judge that described RLF information is effective information for handover optimization, record described RLF information and described RLF information is transmitted to first community relevant to described RLF information; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
Optionally, described RLF message processing module, specifically for judgement, to receiver module, receive the time period of described RLF information from the time of described generation RLF, handover optimization means whether have been taked, if do not take handover optimization means, judge that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.。
The embodiment of the present invention has also correspondingly proposed a kind of system of the RLF of transmission information, and as shown in Figure 7, this system comprises: UE, the first base station, the second base station and webmaster; Wherein,
Described UE, sends RLF information for the second base station under the second community to current connection;
Described the second base station, for receiving the RLF information from UE, afterwards, is sent to webmaster by described RLF information, wherein, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community;
Described webmaster, for described RLF information being sent to the first base station under the first community relevant to described RLF information or abandoning described RLF information, wherein, described the second community and described the first community belong to consolidated network;
Described the first base station, for receiving the RLF information from webmaster, and carries out handover optimization according to described RLF information.
Optionally, described UE, specifically in heterogeneous network handoff procedure, while there is RLF in the first community, preserves corresponding RLF information; And after the second community connects, the RLF information of described preservation is sent to described the second base station.
Optionally, described the second base station, after the RLF information receiving from UE, judge self with the first base station between whether set up X2 interface, X2 interface is not set up in judgement, described RLF information is sent to webmaster.
Optionally, described webmaster, specifically for judging whether described RLF information is effective information for handover optimization, judges that described RLF information is effective information for handover optimization, records described RLF information and described RLF information is transmitted to the first base station; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
Optionally, described RLF information comprises the time that RLF occurs, described webmaster, specifically for judging from the time of described generation RLF to receiving the time period of described RLF information, handover optimization means whether have been taked, if do not take handover optimization means, judge that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
Below in conjunction with specific embodiment, the present invention is described in further detail, following examples have proposed to send in LTE network the scheme of RLF information, solve after UE LTE community A generation RLF, when UE returns to LTE and connects LTE community B, or re-establish while being connected to LTE community B, if there is no X2 interface between the A HeLTE community B of LTE community, how between the A HeLTE community B of LTE community, send RLF information.
Embodiment 1
In the present embodiment, there is RLF Hou LTE community B and connect in UE LTE community A, and Fig. 8 sends the schematic flow sheet of RLF information in the embodiment of the present invention 1, and as shown in Figure 8, this flow process comprises:
Step 801:UE switches between LTE network and 2G/3G network.
Here, UE can be switched to 2G/3G network from LTE network, also can be switched to LTE network from 2G/3G network.
In step 802:UE LTE community A, RLF occurs, UE preserves RLF information.
Step 803:UE LTE community B re-establishes connection, and reports RLF information GeiLTE community B.
Step 804:LTE community B judges between the A of YuLTE community whether set up X2 interface.
Between step 805:LTE community B judgement YuLTE community A, do not set up X2 interface, RLF information is sent to webmaster.
Step 806: webmaster judges that whether RLF information is effective, if effectively, record RLF information and RLF be transmitted to LTE community A.
Here, RLF information effectively refers to handover optimization effective (as effectively upper in the time).If RLF information is invalid to handover optimization, webmaster does not record RLF information and RLF information is deleted.
Embodiment 2
In the present embodiment, UE LTE community A occurs at 2G/3G community C, to connect after RLF, and Fig. 9 sends the schematic flow sheet of RLF information in the embodiment of the present invention 2, and as shown in Figure 9, this flow process comprises:
Step 901:UE switches between LTE network and 2G/3G network.
Here, UE can be switched to 2G/3G network from LTE network, also can be switched to LTE network from 2G/3G network.
In step 902:UE LTE community A, RLF occurs, UE preserves RLF information.
Step 903:UE connects at 2G/3G community C, and UE does not report RLF information to 2G/3G community C.
Step 904:UE re-establishes connection in LTE network, and Ji LTE community B connects, and reports RLF information GeiLTE community B.
Step 905:LTE community B judges between the A of YuLTE community whether set up X2 interface.
Between step 906:LTE community B judgement YuLTE community A, do not set up X2 interface, RLF information is sent to webmaster.
Step 907: webmaster judges that whether RLF information is effective, if effectively, record RLF information and RLF be transmitted to LTE community A.
Here, RLF information effectively refers to handover optimization effective (as effectively upper in the time).If RLF information is invalid to handover optimization, webmaster does not record RLF information and RLF information is deleted.
By the present invention, between Dang Liangge community, do not set up X2 interface, also can effectively transmit the RLF information occurring in handoff procedure, to effectively carry out handover optimization.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (16)
1. a method that sends RLF information, is characterized in that, the method comprises:
The second community receives the Radio Link Failure RLF information from UE;
Described the second community is sent to webmaster by described RLF information, by described webmaster, described RLF information is sent to first community relevant to described RLF information or abandons described RLF information, wherein, described the second community and described the first community belong to consolidated network, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community.
2. method according to claim 1, is characterized in that, before described the second community receives the RLF information from UE, the method also comprises:
In heterogeneous network handoff procedure, there is RLF in the first community in UE, preserves corresponding RLF information;
Described UE, after the second community connects, sends to described the second community by the RLF information of described preservation.
3. method according to claim 1, is characterized in that, after described the second community receives the RLF information from UE, the method also comprises:
Described the second community judges between self first community relevant to described RLF information whether set up X2 interface, judges and does not set up X2 interface, described RLF information is sent to webmaster.
4. method according to claim 1, is characterized in that, described webmaster sends to described RLF information first community relevant to described RLF information or abandons described RLF information and is:
Described webmaster judges whether described RLF information is effective information for handover optimization, judges that described RLF information is effective information for handover optimization, records described RLF information and described RLF information is transmitted to first community relevant to described RLF information; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
5. method according to claim 4, is characterized in that, described RLF information comprises the time that RLF occurs, and described webmaster judges whether described RLF information is that effective information is for handover optimization:
Whether webmaster judgement, from the time of described generation RLF to receiving the time period of described RLF information, has taked handover optimization means, if do not take handover optimization means, judges that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
6. according to the method described in claim 2 to 5 any one, it is characterized in that,
Described heterogeneous network switches to from LTE network and is switched to 2G/3G network or is switched to LTE network from 2G/3G network,
Described the second community and the first community belong to LTE network.
7. a base station, is characterized in that, this base station comprises receiver module and sending module; Wherein,
Described receiver module, for receiving the RLF information from UE;
Described sending module, is sent to webmaster for the RLF information that described receiver module is received, and by described webmaster, described RLF information is sent to the base station relevant to described RLF information or abandons described RLF information.
8. base station according to claim 7, is characterized in that, described base station also comprises judge module,
Described judge module, for judging between the base station that described base station is relevant to the RLF information of receiver module reception whether set up X2 interface;
Described sending module, while not setting up X2 interface specifically for judging at described judge module between the base station that RLF information that described base station and receiver module receive is relevant, is sent to webmaster by described RLF information.
9. a webmaster, is characterized in that, this webmaster comprises: receiver module and RLF message processing module; Wherein,
Described receiver module, for receiving the RLF information from base station;
Described RLF message processing module, sends to the base station relevant to described RLF information or abandons described RLF information for the RLF information that receiver module is received.
10. webmaster according to claim 9, is characterized in that,
Described RLF message processing module, specifically for judging whether described RLF information is effective information for handover optimization, judge that described RLF information is effective information for handover optimization, record described RLF information and described RLF information is transmitted to first community relevant to described RLF information; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
11. webmasters according to claim 10, is characterized in that, described RLF information comprises the time that RLF occurs,
Described RLF message processing module, specifically for judgement, to receiver module, receive the time period of described RLF information from the time of described generation RLF, whether taked handover optimization means, if do not take handover optimization means, judged that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
12. 1 kinds of systems that send RLF information, is characterized in that, this system comprises: UE, the first base station, the second base station and webmaster; Wherein,
Described UE, sends RLF information for the second base station under the second community to current connection;
Described the second base station, for receiving the RLF information from UE, afterwards, is sent to webmaster by described RLF information, wherein, described RLF information be described UE in heterogeneous network handoff procedure, the RLF information producing while there is RLF in described the first community;
Described webmaster, for described RLF information being sent to the first base station under the first community relevant to described RLF information or abandoning described RLF information, wherein, described the second community and described the first community belong to consolidated network;
Described the first base station, for receiving the RLF information from webmaster, and carries out handover optimization according to described RLF information.
13. systems according to claim 12, is characterized in that,
Described UE, specifically in heterogeneous network handoff procedure, while there is RLF in the first community, preserves corresponding RLF information; And after the second community connects, the RLF information of described preservation is sent to described the second base station.
14. systems according to claim 12, is characterized in that,
Described the second base station, after the RLF information receiving from UE, judge self with the first base station between whether set up X2 interface, X2 interface is not set up in judgement, described RLF information is sent to webmaster.
15. systems according to claim 12, is characterized in that,
Described webmaster, specifically for judging whether described RLF information is effective information for handover optimization, judges that described RLF information is effective information for handover optimization, records described RLF information and described RLF information is transmitted to the first base station; Judge that described RLF information is invalid information to handover optimization, abandons described RLF information.
16. systems according to claim 15, is characterized in that, described RLF information comprises the time that RLF occurs,
Whether described webmaster, from the time of described generation RLF to receiving the time period of described RLF information, taked handover optimization means specifically for judgement, if do not take handover optimization means, judges that described RLF information is effective information for handover optimization; Otherwise, judge that described RLF information is invalid information for handover optimization.
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| CN104581682A (en) * | 2014-12-19 | 2015-04-29 | 上海华为技术有限公司 | MRO (mobile robust optimization) method and base station equipment |
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