CN102685672A - Radio link failure (RLF) report and RLF report result acquisition methods and devices - Google Patents
Radio link failure (RLF) report and RLF report result acquisition methods and devices Download PDFInfo
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- CN102685672A CN102685672A CN2012101478026A CN201210147802A CN102685672A CN 102685672 A CN102685672 A CN 102685672A CN 2012101478026 A CN2012101478026 A CN 2012101478026A CN 201210147802 A CN201210147802 A CN 201210147802A CN 102685672 A CN102685672 A CN 102685672A
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Abstract
The invention discloses a radio link failure (RLF) report method, an RLF report device, an RLF report result acquisition method and an RLF report result acquisition device. The methods and the devices are used for increasing the probability that an RLF report comprises geographic position information and making an RLF report result accurate so as to improve the coverage optimization effect and overall performance of a network. The RLF report method comprises the following steps that: when an RLF occurs, user equipment (UE) records RLF information and the geographic position information of the UE; and the UE reports the RLF information and the geographic position information as RLF report results to a network side.
Description
Technical field
The present invention relates to communication technical field, relate in particular to acquisition methods and device that a kind of Radio Link Failure reports (RLF report, Radio Link Failure report) and RLF reported result.
Background technology
Radio Link Failure reports (RLF report, Radio Link Failure report) can be used in time obtaining owing to covering cavity, parameter the link down situation that reason such as unreasonable causes is set.Serving cell signal strength signal intensity or quality, adjacent cell signal strength or quality during the Radio Link Failure of network through collecting, and information such as geographical position are judged to cause the reason of link down, thereby are carried out coverage optimization.
Radio Link Failure and handoff failure only just can take place at connected state in subscriber equipment (UE), and UE will initiatively write down parameters at that time when failure takes place.But because link interrupts, UE can't be in these parameters of connected state real-time report, so can only report when getting into connected state again follow-up.Radio Link Failure (RLF takes place in UE; Radio Link Failure) time; Need write down the Reference Signal Received Power (RSRP of Serving cell at that time; Reference Signal Received Power) with Reference Signal Received Quality (Reference Signal Received Quality; The cell ID that the information of adjacent cells of RSRQ) value, and existing at that time each wireless access type (RAT, Radio Access Type) signal strength signal intensity optimum, the cell ID when failure takes place, reconstruction cell ID, Time To Failure, Fail Type and failure connect before.
When UE preserves RLF information, if UE attempts setting up new connection, can indicate the existence of RLF information to network, wait for that network obtains.The 1 bit RLF that trigger network obtains flow process writes down available indication (RLF-Info Available) and can be carried at Radio Resource control (RRC, Radio Resource Control) connection reconstruction and accomplish in message (RRC Connection Reestablishment Complete) or connection setup complete message (RRC Connection Setup Complete) or the handoff completion message (RRC Connection Reconfiguration Complete).
After network received that there is indication in above-mentioned RLF information, if network need obtain RLF when taking place UE institute content recorded can be sent the UE information request message to UE, UE sent above-mentioned recorded content through UE information-reply message again, and its process is as shown in Figure 1.
In sum, in present RLF report mechanism, geographical location information not necessarily can report in detail; Can cause the not relevant detailed geographical location information of some RLF report result like this; For network,, then can cause the inaccurate of coverage optimization owing to can't obtain detailed position; Even reach reverse effect, and this type RLF report recording of information also can increase the workload of UE and report expense.
Summary of the invention
The embodiment of the invention provides a kind of RLF to report and the acquisition methods and the device of RLF reported result; In order to improve the probability that comprises geographical location information among the RLF report; Make RLF report result more accurate, thereby improve the coverage optimization effect of network, and improve overall performance of network.
A kind of RLF report method that the embodiment of the invention provides comprises:
When Radio Link Failure RLF takes place when, user equipment (UE) record RLF information, and the geographical location information of this UE;
UE reports network side with said RLF information and said geographical location information as the RLF reported result.
The acquisition methods of a kind of RLF reported result that the embodiment of the invention provides comprises:
The Radio Link Failure RLF reported result that network side to receive user equipment UE reports, comprising when RLF takes place, the RLF information of UE record, and the geographical location information of this UE;
Network side obtains the geographical location information of RLF information and said UE from said RLF reported result.
A kind of RLF reporting device that the embodiment of the invention provides comprises:
Record cell is used for when Radio Link Failure RLF takes place the RLF information of recording user equipment UE, and the geographical location information of this UE;
Report the unit, be used for said RLF information and said geographical location information are reported network side as the RLF reported result.
The deriving means of a kind of RLF reported result that the embodiment of the invention provides comprises:
Receiving element is used to receive the Radio Link Failure RLF reported result of reported by user equipment UE, and comprising when RLF takes place, the RLF information of UE record, and the geographical location information of this UE;
Acquiring unit is used for obtaining from said RLF reported result the geographical location information of RLF information and said UE.
The embodiment of the invention, through when Radio Link Failure RLF takes place, user equipment (UE) record RLF information, and the geographical location information of this UE; UE reports network side with said RLF information and said geographical location information as the RLF reported result; Thereby improved the probability that comprises geographical location information among the RLF report; Make RLF report result more accurate; And then the coverage optimization effect of raising network, and improve overall performance of network.
Description of drawings
Fig. 1 is the schematic flow sheet of UE information interactive process transmission RLF information in the prior art;
The schematic flow sheet of a kind of RLF report method of the UE side that Fig. 2 provides for the embodiment of the invention;
The schematic flow sheet of the acquisition methods of a kind of RLF reported result of the network side that Fig. 3 provides for the embodiment of the invention;
The structural representation of a kind of RLF reporting device of the UE side that Fig. 4 provides for the embodiment of the invention;
The structural representation of the deriving means of a kind of RLF reported result of the network side that Fig. 5 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of RLF to report and the acquisition methods and the device of RLF reported result; In order to improve the probability that comprises geographical location information among the RLF report; Make RLF report result more accurate, thereby improve the coverage optimization effect of network, and improve overall performance of network.
In the GSM in future, hope to reduce the manual work of the network planning and Operation and Maintenance and participate in through introducing the mechanism of network self-organization, by network based statistic Automatic Optimal parameter, reduce the construction and the operation cost of network.In order to reduce the O&M cost of network, hope can be taked network configuration UE report method, reduces the work of artificial drive test.On the other hand, also hope to obtain the wireless measurement information in the zone that common drive test can't arrive.For these reasons, in long evolving system version 9 (LTE Rel-9), RLF report mechanism is introduced into.But in long evolving system Rel-9 or version 10 (Rel-10), RLF report not necessarily can carry detailed geographical location information.In later release; Hope strengthens the geographical location information among the RLF report, promptly when obtaining RLF report result, also will obtain corresponding geographical position information; But, also there is not scheme for how strengthening obtaining of detailed geographical location information.Therefore, the present invention proposes obtaining and report method of a kind of detailed geographical location information, its substance is: UE opens locating module when RLF takes place, write down current detailed geographical location information.
Below in conjunction with accompanying drawing the technical scheme that the embodiment of the invention provides is described.
Referring to Fig. 2, in the UE side, a kind of RLF report method that the embodiment of the invention provides comprises step:
S101, when Radio Link Failure RLF takes place when, user equipment (UE) record RLF information, and the geographical location information of this UE;
S102, UE report network side with said RLF information and said geographical location information as the RLF reported result.
Preferably, when RLF took place, the step of the geographical location information of this UE of UE record was appointed with network side in advance, or the network side configuration.
Preferably, when RLF takes place when, the step of the geographical location information of this UE of UE record; Be network side configuration the time; UE reports the ability information of self to give network side, and network side is according to the ability information of UE, and whether notice UE UE when RLF takes place writes down the geographical location information of this UE.
If UE has global navigation satellite (GNSS; Global Navigation Satellite System) function; Global positioning system (Global Positioning System for example; GPS), can directly utilize GPS to obtain the current geographical location information of UE, this location is called (standalone) GNSS location that works alone.In addition, network side also can provide some supplementarys to supply GPS module location to use the GPS localization method (A-GNSS) of for example network assistance.For the UE of Idle state, carrying out RLF when reporting (report), if hope to obtain detailed geographical location information, then will mainly rely on the GNSS positioning function.In addition, under the situation that can not obtain detailed geographical position, UE also can provide rough geographical location information through radio frequency footprint information (RF finger print) is provided.
Therefore, preferably, when RLF took place, the geographical location information of this UE of UE record comprised:
When RLF took place, UE confirmed and writes down the geographical location information of this UE through global navigation satellite GNSS locating module.
Preferably, when UE can't confirm the geographical location information of UE through global navigation satellite GNSS locating module, UE with radio frequency footprint information RF finger print as geographical location information.
That is to say, if when RLF takes place when the geographical location information of this UE of UE record, be that agreement is made an appointment; Then when RLF takes place,, then start locating module if UE supports the location; If there is not locating module, then still write down and report (RF finger print) according to current mechanism.
If UE has started locating module, and can obtain detailed geographical location information (like GNSS), " writing down current geographical location information " detailed geographical location information for obtaining through locating module; But also might open locating module and can't obtain the accurate localization result, therefore, " write down current geographical location information " in this case still according to current mechanism record RF finger print.
Referring to Fig. 3, at network side, the acquisition methods of a kind of RLF reported result that the embodiment of the invention provides comprises step:
The Radio Link Failure RLF reported result that S201, network side to receive user equipment UE report, comprising when RLF takes place, the RLF information of UE record, and the geographical location information of this UE;
S202, network side obtain the geographical location information of RLF information and said UE from said RLF reported result.
Preferably, when RLF takes place when, the step of the geographical location information of this UE of UE record, UE and network side are appointed in advance, or the network side configuration.
Preferably, when RLF takes place when, the step of the geographical location information of this UE of UE record; Be network side configuration the time; UE reports the ability information of self to give network side, and network side is according to the ability information of UE, and whether notice UE UE when RLF takes place writes down the geographical location information of this UE.
Preferably; When RLF takes place when; The step of the geographical location information of this UE of UE record, be the network side configuration the time, network side the sub-district switch or the sub-district process of reconstruction in; The configuration information that will be used to notify UE UE when RLF takes place whether to write down the geographical location information of this UE by the source eNB of this UE sends to target eNB, by target eNB this configuration information is sent to this UE.
Preferably, the geographical location information of said UE is when RLF takes place, and UE is through global navigation satellite GNSS locating module, confirms and the geographical location information of this UE of record.
Preferably, when UE can't confirm the geographical location information of UE through global navigation satellite GNSS locating module, the geographical location information of this UE that network side obtains was the radio frequency footprint information RFfinger print of this UE.
Need to prove that the technical scheme that the embodiment of the invention provides except being applicable to the LTE system, also goes for other system, like the UMTS system.
Provide the explanation of several specific embodiments below:
Embodiment 1: when RLF takes place, whether start locating module and write down detailed geographical location information and can join.
UE is operated in sub-district 1; Evolved base station (eNB) is according to UE ability (this UE supports to start the function that locating module writes down detailed geographical location information), and notice UE starts locating module and writes down detailed geographical location information (can connect the reallocation message notice through RRC) when RLF takes place.
RLF 1 has taken place in the sub-district in UE, and then UE opens self-contained GNSS locating module, in record RLF relevant information, utilizes locating module to note the detailed geographical location information of current generation RLF.Wherein, said RLF relevant information, for example, the cell ID that the Serving cell sign when comprising generation RLF, Serving cell channel quality, follow-up success are rebuild etc.
If UE has obtained detailed geographical location information,,, report eNB reporting in the process of follow-up RLF report result then with its part as this RLF report result.
Rebuild successfully in other sub-districts if UE is follow-up, then rebuild the sub-district and can whether start the function that locating module writes down detailed geographical location information to this UE and carry out reprovision (continuing to use or cancellation).
Embodiment 2: agreement is made an appointment when RLF takes place, and starts locating module (if UE has stationkeeping ability).
UE is operated in sub-district 1, and agreement is made an appointment, and the UE of support standalone GNSS function starts the function that locating module writes down detailed geographical location information in the time of just must being supported in RLF.
RLF 1 has taken place in the sub-district in UE, and this UE supports standalone GNSS function, and then UE opens self-contained GNSS locating module, in record RLF relevant information, utilizes locating module to note the detailed geographical location information of current generation RLF.
If UE has obtained detailed geographical location information,,, report eNB reporting in the process of follow-up RLF report result then with its part as this RLF report result.
Rebuild successfully in other sub-districts if UE is follow-up, then rebuild the sub-district and can whether start the function that locating module writes down detailed geographical location information to this UE and carry out reprovision (continuing to use or cancellation).
Embodiment 3: when RLF took place, whether UE started the function that locating module writes down detailed geographical location information based on the configuration of UE ability.
When can judging whether to be configured in RLF for UE according to the UE ability, eNB starts the function that locating module writes down detailed geographical location information.Concrete mode comprises explicit way and implicit expression mode:
Explicit way: can in the UE ability information reports, increase the indication information of 1bit, be used to represent to start the function that locating module writes down detailed geographical location information when whether UE is supported in RLF.UE can report process to notify to eNB through the UE ability.After eNB obtains this information, can dispose accordingly for the UE that supports this function and promptly notify UE when RLF takes place, whether to start locating module to write down detailed geographical location information.
Implicit expression mode: if UE supports that (then UE also supports to start for RLF the function that locating module writes down detailed geographical location information for Minimization of Drive Tests, MDT) purpose and initiatively open the GNSS positioning function for minimum road test.Like this, eNB only need know the relevant ability in the location of MDT, the stationkeeping ability in the time of just can implying the RLF report that judges UE.ENB, promptly notifies UE when RLF takes place, whether to start locating module and writes down detailed geographical location information for the UE that supports this function disposes accordingly according to this information.
Referring to Fig. 4, in the UE side, a kind of RLF reporting device that the embodiment of the invention provides comprises:
Preferably, when RLF took place, the geographical location information of said record cell 11 record UE was appointed with network side in advance, or the network side configuration.
Preferably, the geographical location information of said record cell 11 record UE, be the network side configuration the time, this device also comprises:
Preferably, said record cell 11 when writing down the geographical location information of this UE, specifically is used for when RLF takes place:
When RLF takes place,, confirm and write down the geographical location information of this UE through global navigation satellite GNSS locating module.
Preferably, said record cell 11 in the time can't confirming the geographical location information of UE through global navigation satellite GNSS locating module, with radio frequency footprint information RF finger print as geographical location information.
Preferably, a kind of RLF reporting device that the embodiment of the invention provides is UE.
Referring to Fig. 5, at network side, the deriving means of a kind of RLF reported result that the embodiment of the invention provides comprises:
Receiving element 21 is used to receive the Radio Link Failure RLF reported result of reported by user equipment UE, and comprising when RLF takes place, the RLF information of UE record, and the geographical location information of this UE;
Acquiring unit 22 is used for obtaining from said RLF reported result the geographical location information of RLF information and said UE.
Preferably, when RLF takes place when, the geographical location information of this UE of UE record, UE and network side are appointed in advance;
Perhaps, this device also comprises:
Dispensing unit 23 is used for notice when RLF takes place, and whether UE writes down the geographical location information of this UE.
Preferably, when this device also comprised said dispensing unit 23, said dispensing unit 23 had and is used for:
The ability information of this UE that reception UE reports, according to the ability information of UE, whether notice UE UE when RLF takes place writes down the geographical location information of this UE.
Preferably, when this device also comprised said dispensing unit 23, said dispensing unit 23 also was used for:
In sub-district switching or sub-district process of reconstruction, the configuration information that the source eNB that triggers this UE will be used to notify UE UE when RLF takes place whether to write down the geographical location information of this UE sends to target eNB, by target eNB this configuration information is sent to this UE.
Preferably, the geographical location information of the UE that said acquiring unit 22 obtains is when RLF takes place, and UE is through global navigation satellite GNSS locating module, confirms and the geographical location information of this UE of record.
Preferably, when UE can't confirm the geographical location information of UE through global navigation satellite GNSS locating module, the geographical location information of this UE that said acquiring unit 22 obtains was the radio frequency footprint information RF finger print of this UE.
Preferably, the deriving means of a kind of RLF reported result that the embodiment of the invention provides can be eNB.
In sum, in the technical scheme that the embodiment of the invention provides, UE opens locating module (mainly referring to GNSS) when RLF takes place, write down current geographical location information; And with its part as RLF report result; Wherein, " UE opens locating module when RLF takes place " function can be a network configuration, also can be that agreement is made an appointment; If whether network configuration launches this function, then eNB can come UE is configured according to UE ability (explicit or implicit expression indication); Make an appointment if this function is an agreement,, then start locating module,, then still write down and report (RF fingerprint) according to current mechanism if there is not locating module if then UE supports the location; If eNB has disposed this function, then UE opens locating module when RLF takes place; Otherwise UE still writes down and reports (RF fingerprint) according to current mechanism.The configuration information of network is in handoff procedure, and eNB passes to target eNB by the source; The target eNB of switching or rebuilding can be carried out reprovision to this parameter.If UE has started locating module, and can obtain detailed geographical location information (like GNSS), " writing down current geographical location information " detailed geographical location information for obtaining through locating module; But also might open locating module and can't obtain accurate location result, therefore, " write down current geographical location information " in this case still according to current mechanism record RF fingerprint.
Therefore; What the present invention proposes a kind of detailed geographical location information obtains and reports scheme, and the geographical location information that has solved among the RLF report obtains problem, makes RLF report result more accurate; Improve the coverage optimization effect of network, promoted overall performance of network.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (22)
1. Radio Link Failure RLF report method is characterized in that this method comprises:
When Radio Link Failure RLF takes place when, user equipment (UE) record RLF information, and the geographical location information of this UE;
UE reports network side with said RLF information and said geographical location information as the RLF reported result.
2. method according to claim 1 is characterized in that, when RLF took place, the step of the geographical location information of this UE of UE record was appointed with network side in advance, or the network side configuration.
3. method according to claim 2; It is characterized in that, when RLF takes place when, the step of the geographical location information of this UE of UE record; Be network side configuration the time; UE reports the ability information of self to give network side, and network side is according to the ability information of UE, and whether notice UE UE when RLF takes place writes down the geographical location information of this UE.
4. method according to claim 1 is characterized in that, when RLF took place, the geographical location information of this UE of UE record comprised:
When RLF took place, UE confirmed and writes down the geographical location information of this UE through global navigation satellite GNSS locating module.
5. method according to claim 4 is characterized in that, when UE can't confirm the geographical location information of UE through global navigation satellite GNSS locating module, UE with radio frequency footprint information RF Fingerprint as geographical location information.
6. the acquisition methods of a Radio Link Failure RLF reported result is characterized in that, this method comprises:
The Radio Link Failure RLF reported result that network side to receive user equipment UE reports, comprising when RLF takes place, the RLF information of UE record, and the geographical location information of this UE;
Network side obtains the geographical location information of RLF information and said UE from said RLF reported result.
7. method according to claim 6 is characterized in that, when RLF takes place when, and the step of the geographical location information of this UE of UE record, UE and network side are appointed in advance, or the network side configuration.
8. method according to claim 7; It is characterized in that, when RLF takes place when, the step of the geographical location information of this UE of UE record; Be network side configuration the time; UE reports the ability information of self to give network side, and network side is according to the ability information of UE, and whether notice UE UE when RLF takes place writes down the geographical location information of this UE.
9. method according to claim 8; It is characterized in that, when RLF takes place when, the step of the geographical location information of this UE of UE record; Be network side configuration the time; Network side the sub-district switch or the sub-district process of reconstruction in, the configuration information that will be used to notify UE UE when the generation RLF whether to write down the geographical location information of this UE by the source eNB of this UE sends to target eNB, by target eNB this configuration information is sent to this UE.
10. method according to claim 6 is characterized in that, the geographical location information of said UE is when RLF takes place, and UE is through global navigation satellite GNSS locating module, confirms and the geographical location information of this UE of record.
11. method according to claim 10; It is characterized in that; When UE can't confirm the geographical location information of UE through global navigation satellite GNSS locating module, the geographical location information of this UE that network side obtains was the radio frequency footprint information RF finger print of this UE.
12. a Radio Link Failure RLF reporting device is characterized in that this device comprises:
Record cell is used for when Radio Link Failure RLF takes place the RLF information of recording user equipment UE, and the geographical location information of this UE;
Report the unit, be used for said RLF information and said geographical location information are reported network side as the RLF reported result.
13. device according to claim 12 is characterized in that, when RLF took place, the geographical location information of said recording unit records UE was appointed with network side in advance, or the network side configuration.
14. device according to claim 13 is characterized in that, the geographical location information of said recording unit records UE, be network side configuration the time, this device also comprises:
The ability indicating member is used to report the ability information of UE to give network side, and in order to the ability information of indication network lateral root according to UE, whether notice UE UE when RLF takes place writes down the geographical location information of this UE.
15. device according to claim 12 is characterized in that, said record cell when writing down the geographical location information of this UE, specifically is used for when RLF takes place:
When RLF takes place,, confirm and write down the geographical location information of this UE through global navigation satellite GNSS locating module.
16. device according to claim 15 is characterized in that, said record cell in the time can't confirming the geographical location information of UE through global navigation satellite GNSS locating module, with radio frequency footprint information RF finger print as geographical location information.
17. the deriving means of a Radio Link Failure RLF reported result is characterized in that, this device comprises:
Receiving element is used to receive the Radio Link Failure RLF reported result of reported by user equipment UE, and comprising when RLF takes place, the RLF information of UE record, and the geographical location information of this UE;
Acquiring unit is used for obtaining from said RLF reported result the geographical location information of RLF information and said UE.
18. device according to claim 17 is characterized in that, when RLF takes place when, and the geographical location information of this UE of UE record, UE and network side are appointed in advance;
Perhaps, this device also comprises:
Dispensing unit is used for notice when RLF takes place, and whether UE writes down the geographical location information of this UE.
19. device according to claim 18 is characterized in that, when this device also comprised said dispensing unit, said dispensing unit had and is used for:
The ability information of this UE that reception UE reports, according to the ability information of UE, whether notice UE UE when RLF takes place writes down the geographical location information of this UE.
20. device according to claim 19 is characterized in that, when this device also comprised said dispensing unit, said dispensing unit also was used for:
In sub-district switching or sub-district process of reconstruction, the configuration information that the source eNB that triggers this UE will be used to notify UE UE when RLF takes place whether to write down the geographical location information of this UE sends to target eNB, by target eNB this configuration information is sent to this UE.
21. device according to claim 17 is characterized in that, the geographical location information of the UE that said acquiring unit obtains is when RLF takes place, and UE is through global navigation satellite GNSS locating module, confirms and the geographical location information of this UE of record.
22. device according to claim 21; It is characterized in that; When UE can't confirm the geographical location information of UE through global navigation satellite GNSS locating module, the geographical location information of this UE that said acquiring unit obtains was the radio frequency footprint information RF finger print of this UE.
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| EP2934039A1 (en) | 2014-04-15 | 2015-10-21 | Telefonaktiebolaget L M Ericsson (PUBL) | Technique for event reporting |
| CN106412968A (en) * | 2015-07-31 | 2017-02-15 | 中国移动通信集团公司 | Method and apparatus for collecting wireless link information, and terminal |
| CN106851752A (en) * | 2016-12-26 | 2017-06-13 | 努比亚技术有限公司 | A kind of user equipment and its method for realizing speech business |
| CN110446220A (en) * | 2018-05-04 | 2019-11-12 | 维沃移动通信有限公司 | A kind of wireless link recovery method and terminal |
| CN111212432A (en) * | 2018-11-21 | 2020-05-29 | 中国移动通信集团江西有限公司 | Method, apparatus, device and medium for positioning pseudo base station |
| CN113938962A (en) * | 2020-07-13 | 2022-01-14 | 夏普株式会社 | Switching information reporting method and user equipment |
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