CN101884237A - Method for measuring home cell in mobile communication system - Google Patents
Method for measuring home cell in mobile communication system Download PDFInfo
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- CN101884237A CN101884237A CN2008801187431A CN200880118743A CN101884237A CN 101884237 A CN101884237 A CN 101884237A CN 2008801187431 A CN2008801187431 A CN 2008801187431A CN 200880118743 A CN200880118743 A CN 200880118743A CN 101884237 A CN101884237 A CN 101884237A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
- H04W36/322—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by location data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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Abstract
Disclosed is method for measuring a home cell in a mobile telecommunications system comprising: a network including a plurality of base stations for defining communications cells; and first and second user equipment for communicating with the network, said plurality of base stations including at least one home base station defining a home cell associated with said first user equipment and not with said second user equipment, said home cell overlapping in coverage with a communications cell usable by both said first and second user equipment.
Description
Technical field
The present invention relates to wireless communication system, and more specifically, relate to a kind of method and apparatus that is used to measure home cell (home cell), it can control the measurement and the report of the quality of Radio Link.Such measurement is important factor determining whether carry out in the hand-over at large.
Background technology
At present, the universal terrestrial radio of evolution access (E-UTRA) scheme is stipulated.Some details of E-UTRA (for example, 3GPP standard TS 36.300 " Evolved UniversalTerrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial AccessNetwork (E-UTRAN) that reaches an agreement; Overall description; Stage 2 ", Release 8).
As other existing wireless communication systems, this E-UTRA scheme comprise have with a plurality of subscriber equipmenies (typically, portable terminal such as mobile phone hand-held set, PDA etc.) carries out a plurality of wireless base stations of radio communication, i.e. the network of enhancement mode Node B (also be called " eNodeB " or " eNB " and hereinafter will be called " eNB ").Definition sub-district, base station, each is used in the communication on the limited geographic area so that allow channel reuse.In the earlier application of the application number GB0700555.6 that we submit on January 11st, 2007 (acting on behalf of reference number J49460GB), described the measurement report in such system, by reference it has been herein incorporated here.Network sends measures control messages to subscriber equipment, and which sub-district is regulation will measure.This measurement that UE makes exhausts the battery electric power of UE, and interval that need be in transmission/reception.
Proposed to utilize family or private network cell to form part wireless communication system and wireless communication system interaction.Produce family or private cell by home (e) node NodeB or the eNodeB of family.Though finally do not finish the details of such eNodeB of family as yet, but (for example be envisioned for, in 3GPP file R4-070339, " Home NodeB/eNodeB deployment scenarios and requirements ") they should be deployed in indoor home environment or the small office environment, such as the family in the single house use, family's use in the multi-storey building, the use of small-sized and large-scale office, exhibition use etc.Therefore they produce low-power consumption, little sub-district (that is, picocell or bold and unconstrained picocell), only can be used for very little zone.
The region overlapping that usually regional and other sub-districts (comparative examples, " macrocell ") that is covered by such home cell covers., they only can be conducted interviews by the finite subset of subscriber equipment.For example, if dispose home cell in the family, then the subscriber equipment that only is associated with the family residence can use this home cell; If this home cell is on Store Building, then the subscriber equipment that only this shop had can be visited this home cell, by that analogy.
For those authorized users, the improvement that the use of home cell can be provided in the frequent room area that occurs of user receives.This is of value to other network users equally, because the use of home cell is removed and (unload) burden of flow of the macrocell that comes automatic network.Therefore, expectation can use the subscriber equipment of home cell to do like this.Equally, expect such mechanism, be used for when subscriber equipment is idle, making such subscriber equipment preferentially be registered in the home cell that it can use, and be used for when subscriber equipment activates, making that such subscriber equipment is handed over to such home cell.
Simultaneously, the expectation allow ENB of family or NodeB as much as possible with other network equipment compatibilities.A kind of possibility is to provide home cell in the set of channel that does not use for network in addition (as, frequency) or channel.
Because home cell will be less relatively, subscriber equipment can be run into a large amount of home cell of uncommitted use.Therefore, available signal strength signal intensity from such sub-district is made measurement, and to the such measurement of network-reporting is insignificant task, and this all can reduce subscriber equipment and is used for the availability of other purposes and produces unnecessary signaling consumption, exhausts network capacity.
Summary of the invention
Therefore, make the present invention and solve the problems referred to above that take place in the prior art, and the invention provides a kind of method and apparatus that is used to measure home cell, it can control the measurement and the report of the quality of Radio Link.Such measurement is important factor determining whether carry out in the hand-over at large.
According to an aspect of of the present present invention, a kind of method that is used for measuring at mobile communication system home cell is provided, this mobile communication system comprises network, this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage: the position data of obtaining the position of indication first subscriber equipment at the network place; Determine that by using the position data of being obtained whether first subscriber equipment is near home cell; Send the cell measurement control messages of the measurement that is used to specify described home cell to first subscriber equipment via the base station from network; Carrying out fine location at the first subscriber equipment place measures; At the first subscriber equipment place, determine that based on described fine location measurement whether first subscriber equipment is near home cell; And, carry out the measurement of described home cell at the first subscriber equipment place when first subscriber equipment during near home cell.
According to a further aspect of the invention, provide a kind of method that is used for measuring at mobile communication system home cell, this mobile communication system comprises network, and this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprises at least one Home eNodeB that defines a plurality of home cells, in described a plurality of home cell at least one and described first user device association and not with described second user device association, with overlapping by the two communication cell that can use of first and second subscriber equipmenies, described method comprises step to described home cell on coverage: the position data of obtaining the position of indication first subscriber equipment; Determine that by using the position data of being obtained whether first subscriber equipment is near home cell; When first subscriber equipment during, send to first subscriber equipment via the base station relevant from network and to measure control messages with described home cell near home cell; And depend on the described measurement control messages that is received, carry out the measurement of described home cell at the first subscriber equipment place; Wherein, when setting up or transmit when relating to the session of described first subscriber equipment, be sent to the base station about the positional information of the position of the described home cell in the zone of the communication cell that produces by the base station to the base station.
According to a further aspect of the invention, provide a kind of being used for to measure home cell so that subscriber equipment is transferred to the method for the described home cell of operating by the target Home eNodeB from the communication cell of being operated by source base station at mobile communication system, this mobile communication system comprises network, and this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage: transmit security information via described source base station to described target Home eNodeB from described subscriber equipment; Verify by described target Home eNodeB information safe in utilization whether described subscriber equipment is authorized to be connected to the sub-district; And when described subscriber equipment is authorized to be connected to described sub-district, accepts the connection of described subscriber equipment by described target Home eNodeB and set up.
According to a further aspect of the invention, providing a kind of is used to measure home cell in mobile communication system so that limit from the method for first subscriber equipment to the cell measurement of the described home cell of network-reporting, this mobile communication system comprises network, and this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage: signal (signaling) from described first subscriber equipment and measure control messages; Carry out a plurality of cell measurements at the described first subscriber equipment place; At each described measurement, verify described first subscriber equipment visited cell of whether having the right; And depend on the decision of described verification step and whether report described cell measurement.
According to a further aspect of the invention, provide a kind of being used for to operate communication network so that measure the method for home cell at mobile communication system, this mobile communication system comprises network, and this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell: signal the measurement control messages from network to subscriber equipment on coverage; Wherein, described measurement control messages comprises the field that described first subscriber equipment of instruction enters limited Report mode, in this pattern, described first subscriber equipment is carried out the cell measurement for a plurality of sub-districts, verify based on cell measurement whether described first subscriber equipment is authorized to visit described sub-district, and determine whether the reporting cell measurement based on checking.
According to a further aspect of the invention, provide a kind of method that is used for measuring home cell, comprise step: send signal to subscriber equipment and can measure and report the home cell channel to indicate it at cellular network; Stipulate that first subscriber equipment will measure and report described home cell channel when receiving such signal; And regulation can make second subscriber equipment that fine location measures and will make described fine location measure when receiving such signal, and and if only if measures and report described home cell channel when being detected as it near described home cell channel.
According to a further aspect of the invention, provide a kind of method that is used for measuring home cell, comprise step: transmit control message to indicate it can measure and report the home cell channel to subscriber equipment at cellular network; And described home cell channel can be measured and report to the regulation subscriber equipment when receiving such control messages, wherein, network is arranged to transmit to each base station of user equipment registration the positional information of the position of the described home cell of having the right to use about subscriber equipment, to allow to detect when the approaching described home cell of described user terminal and based on the measurement of described detection limit home cell.
According to a further aspect of the invention, provide a kind of cellular network of operating to be used for the method that home cell is measured, comprise step: allow subscriber equipment transfer, directly described home cell to be verified from network cell to the family sub-district, use in transfer from described network cell and security information user device association, described subscriber equipment is transferred to described home cell from described cellular network.
According to a further aspect of the invention, a kind of method that is used for measuring at cellular network home cell is provided, comprise step: send signal to subscriber equipment, with any measurement of indication for the given channel corresponding with home cell, it should determine whether it has the right to use described home cell and whether report that in decision use is described definite in the described measurement.
Description of drawings
Following detailed description in conjunction with the drawings, above and other aspect of the present invention, feature and advantage will be more clear, wherein:
Fig. 1 is the figure that illustrates according to the primary clustering of the wireless communication system of the first embodiment of the present invention;
Fig. 2 is the block diagram that illustrates according to the primary clustering of the subscriber equipment of the first embodiment of the present invention;
Fig. 3 is the block diagram that illustrates according to the primary clustering of the enhancement mode Node B (eNB) of the first embodiment of the present invention;
Fig. 4 is the overlapping figure that each sub-district and family/private cell are shown;
Fig. 5 A is the flow chart that is illustrated in the signaling in the first embodiment of the present invention, between subscriber equipment, Mobility Management Entity and the eNB base station of the network portion that forms Fig. 1;
Fig. 5 B is the flow chart that is illustrated in each stage of the signaling between subscriber equipment and eNB base station in the process of Fig. 5 A;
Fig. 6 A is the flow chart that is illustrated in the process of carrying out at the eNB place; With
Fig. 6 B is the flow chart that is illustrated in the process of carrying out at the subscriber equipment place;
Fig. 7 be illustrated in the second embodiment of the present invention, at the flow chart in each stage of the subscriber equipment that is in idle pulley of the network portion that forms Fig. 1 and the signaling between the eNB base station;
Fig. 8 be illustrate in a second embodiment, the flow chart of the signaling between the subscriber equipment that is in enable mode, Mobility Management Entity and the eNB base station of the network portion that forms Fig. 1;
Fig. 9 be illustrated in the third embodiment of the present invention, at the flow chart in each stage of the subscriber equipment of the network portion that forms Fig. 1 and the signaling between the eNB base station;
Figure 10 A is the flow chart that is illustrated in the process of carrying out at the eNB place in the third embodiment of the present invention; With
Figure 10 B is the flow chart that is illustrated in the process of carrying out at the subscriber equipment place in the third embodiment of the present invention.
Embodiment
Hereinafter, example embodiment of the present invention is described with reference to the accompanying drawings.In the following description, the various specific definitions that find in the following description provide and only are used to help comprehensive understanding of the present invention, and are obvious for those skilled in the art, need not such definition and also can realize the present invention.
First embodiment
In the context of the wireless communication system of the Universal Terrestrial Radio Access Network network (E-UTRAN) of the evolution that will propose first embodiment is described incorporating into.
Fig. 1 is the figure that illustrates according to the primary clustering of the wireless communication system of the first embodiment of the present invention.
As shown in Figure 1, in wireless communication system, a plurality of subscriber equipmenies (UE) 1a-1j communicates via Radio Link 5a-5j and each self-reinforcing type Node B base station (eNB) 3a-3j.
In according to the first embodiment of the present invention, UE 1a is a cellular telephone to 1j (hereinafter, being called " 1 ").ENB 3a is directly connected to core net 7 respectively to 3d (hereinafter, being called " 3 ").ENB 3 also is connected to each other, and is connected at least one Mobility Management Entity (MME) 8, and the position that MME 8 follows the tracks of UE 1 belongs to their position for example in the tracing area (TA), so that route is to its calling that enters.
In according to the first embodiment of the present invention, UE 1 also can utilize other wireless access technologys (RAT) (as, standard universal grounding wireless access network network (UTRAN) and global system for mobile communications (GSM) network) communicate.In the method, during the realization of E-UTRAN, UE still can have there not being eNB in the zone of base station of other such networks and works.
Fig. 4 is the overlapping figure that each sub-district and family/private cell are shown.
As shown in Figure 4, a plurality of sub-district 100a, the 100b etc. that provided by eNB 3 are provided this network.These sub-districts (macrocell) are shown as adjacent traditionally.But in practice, thereby their coverage can overlappingly be covered with sight line and intercepted the interruption can not cause covering.By the eNB of each family (not shown), with corresponding different separately building 90a of first and second small shops and 90b in first and second families/ private cell 102a and 102b is provided.Be used for providing these home cells on the dedicated frequency of family/private cell.In other words, but the eNB of family and eNB 3 are similar to be sent by lower power level.
Each eNB 3 communicates by letter with UE 1 in one or more sub-districts of its broadcasting.Move along with being in the UE 1 that activates communication pattern, communication is transferred between each sub-district.In according to the first embodiment of the present invention, E-UTRAN consideration radio link quality key element (factor) and data traffic management essentials determine when the generation hand-over and to which cell handoff communicate by letter.All UE 1 can communicate by letter with eNB 3 arbitrarily.
First group of UE 1a to 1c by the office worker in first shop all, and second group of UE 1d-1f by the office worker in second shop all.Though home cell 102a, 102b only are shown, first shop can have other home cell (not shown) in the another location, also can be used by first group of UE 1a-1c.
In order to measure the radio link quality key element, UE 1 carries out various measurements.For some of these measurements, UE 1 is monitored data or send data simultaneously, for example because carry out this measurement in the different frequency ranges (inter-frequency measurements) or this measurement is at different wireless access technologys (RAT measurements).In order to allow such measurement to take place, a plurality of transmissions and reception gap are introduced in the existing Radio Link, and UE 1 needn't monitor or send data and freely carry out and measure during this gap.When UE 1 was connected to E-UTRAN, gap configuration was to be selected from one group of candidate's gap configuration that E-UTRAN provides by UE 1.
Fig. 2 is the block diagram that illustrates according to the primary clustering of the UE 1 of the first embodiment of the present invention.In order to clearly demonstrate the first embodiment of the present invention, not shown in Figure 2 and incoherent other assemblies of the present invention are such as antenna, microphone, battery, loud speaker, display and keyboard.
As shown in Figure 2, UE 1 has controller 21, transceiver 23 and memory 25.Controller 21 comprises measurement controller 27 that the control radio link quality is measured and the transceiver controller 29 of controlling the operation of transceiver 23.Transceiver 23 comprises: control information transceiver 31, its handle with the control data of eNB 3 communicate by letter and from the reception of the control data of eNB 3; And data collector 33, its handle with the user data of eNB 3 communicate by letter and from the reception of the user data of eNB 3.Those UE 1a-1c communicating by letter with each family/ private cell 102a, 102b also provide position treatment facility 39 among the 1d-1f, as gps satellite location survey equipment.
Fig. 3 is the block diagram that illustrates according to the primary clustering of the enhancement mode Node B (eNB) of the first embodiment of the present invention.Go out as shown, eNB 3 has controller 41, transceiver 43 and memory 45.Controller 41 comprises: the transceiver controller 49 and the scheduler 51 of the operation of the measurement controller 47 that the radio link quality that control is carried out by eNB 3 is measured, control transceiver 43.They are provided by one or more computers, and data in the memory 45 and program are operated.Transceiver 43 comprises: control information transceiver 53, and it is handled and the communicating by letter of the control data of UE 1; And comprise data collector 55, it is handled and the communicating by letter of the user data of UE 1.For clear so, be omitted such as other assemblies of antenna, power supply etc.
With reference to figure 5A and Fig. 6 A, will be described in the process of carrying out in the first embodiment of the present invention now.
Fig. 5 A is the flow chart that is illustrated in the signaling in the first embodiment of the present invention, between subscriber equipment, Mobility Management Entity and the eNB base station of the network portion that forms Fig. 1.
At step S1, part as the context transfer during connecting foundation, MME 8 in a different manner (as, target area (TA) or the routine/public/macrocell overlapping, or geographical coordinate with home cell) provide information to eNB 3 about the home cell position.
At step S2, eNB 3 detects UE 1 near family's subdistrict position based on the home cell positional information of being transmitted.
At step S3, it initiates to measure control messages when network wishes to set up, revise or discharge the measurement of the special neighbourhood sub-district that will be carried out by UE.More specifically, network indication UE should be to the applied new configuration of measurement of the frequency that is used for family/private cell.
Be sent as shared message in the measurement control messages shown in the following table 1.
Table 1
Measurement control messages in the table 1 is intended to be annotated to being used to begin the instruction to the measurement of home cell by UE 1.In according to the first embodiment of the present invention, measure control messages and comprise additional elements (in table 1, illustrating) with italics, indication UE can further limit the geographic area of measuring home cell within it.
Fig. 5 B is the flow chart that is illustrated in each stage of the signaling between subscriber equipment and eNB base station in the process of Fig. 5 A, and Fig. 6 B is the flow chart that is illustrated in the process of carrying out at the subscriber equipment place.
With reference to figure 5B and 6B, UE 1 is received in the measurement control messages between each frequency in the zone that is allowed in step S4.In step S5, UE 1 begins to detect near its next-door neighbour who whether is in addressable family/private cell.In step S6, UE 1 checking is included in the configuration of measuring in the control messages.As the testing result in step S5, when it was near the next-door neighbour of addressable family/private cell, UE 1 carried out inter-frequency measurements.On the contrary, when it was not near the next-door neighbour of addressable family/private cell, UE 1 is the inter-frequency measurements of execution in step S7 not.Also promptly, when UE was near the next-door neighbour of addressable family/private cell, it returned " response message is finished in measurement " as shown in table 2 successful foundation, modification or release to confirm to measure.On shared channel, send " response message is finished in measurement " as shown in table 2.
Table 2
| Information element/group name claims | Need | Describe |
| Type of message | ??MP | |
| The RRC transformation identifier | ??MP | |
| Integrity check info | ??CH | |
| Measure sign | ??MP | Identify this measurement |
In the first embodiment of the present invention, the memory 25 of UE comprises the data that define the geographic area, and it is corresponding that this geographic area and subscriber equipment 1a can obtain the position of each home cell 102a of visit.For example, it is corresponding that these data and home cell 102a are positioned at its corner of building 90a.
At the subscriber equipment place, when receiving the message of table 1 in step S4, UE 1a uses GPS equipment 39 starting positions to measure.Regularly provide position measurements by GPS unit 39.Depend on that various factors comes preferably to determine and changes this periodicity, described each factor such as for read for the last time be how near this home cell, last read for twice indication towards home cell move or away from home cell with mobile, towards/the speed that moves away from home cell etc.
Position measurements and the home cell position data that is stored in the memory 25 are compared, if the position of being reported in step S6 is in the home cell intra-zone that defines in the memory, then UE 1a begins the home cell frequency is made channel measurement, and reports this measurement to the eNB 3a of communication with it.
Therefore, in operation, when the UE 1a that can communicate by letter with home cell 102a is among the macrocell 100b, UE 1a by eNB 3b notify its be in home cell 102a roughly near.As shown in Figure 2, if user terminal 102a has GPS unit 39, then it will move as mentioned above when user terminal is near home cell 102a definite and detect, and only set about carrying out and reporting the measurement of that sub-district at that time.
Therefore, such UE 1a can not waste resource or bandwidth owing to measuring its home cell 102b that can't communicate by letter, but really measures the home cell that it can be communicated by letter.In addition, it does not need to utilize and is used for the measurement clearance that the home cell of inaccessible is measured is interrupted sending or received.On the other hand, UE is used for the GPS that fine location measures and comes extending battery life by not using, till the approximated position of the home cell 102a that is notified it to be in to license by network.
Therefore, combination rough position definite (by network) determines that to trigger fine location (by UE) has battery and other the resource-effective economy on UE 1a concurrently in the measurement of home cell.
This arrangement also can be used jointly with other UE that lack Fine Mapping mechanism 39.Under the situation of the UE 1b that licenses home cell 102a, initiate home cell in the time of can working as the measurement control messages that receives table 1 and measure.Therefore, in the first embodiment of the present invention, depend on its position measurement ability, depend on UE in response to the action of measuring the control messages execution.
Though preferably be used in combination as mentioned above coarse localization (by network) and Fine Mapping (by UE) the two, the each side of the foregoing description can not used in having the Fine Mapping of UE.For example, because each eNB only needs to be left the required information of those moving body services in its zone, so during the context transfer that occurs in target eNB connects or (generally pass through MME and might pass through last eNB) in the target eNB transfer connects, it is favourable providing the feature of home cell positional information to this eNB.About the position of all home cells and authorization message can to each user concentrated area or partly (local) keep and upgrade, and when needs, be provided for eNB.In this case, the position of wherein having carried out the location is less relevant, and for example, eNB can instruct the UE starting position to measure, obtain near the report of its position home cell of indication from UE, and send the measurement control messages to measure the home cell frequency to UE then.
Second embodiment
In the second embodiment of the present invention, make regulation: when UE attempts determining when given home cell moves whether UE is authorized to visit this home cell.In order to minimize the signaling traffic load on the network, between UE 1a and the eNB of family (though other base stations 3 can provide limited support, such as the transparent transmission of information), directly carry out checking.The operation of this embodiment in the idle pulley of UE and connection mode will be discussed now.
Idle pulley
Fig. 7 is the flow chart that is illustrated in the second embodiment of the present invention in each stage of the subscriber equipment that is in idle pulley of the network portion that forms Fig. 1 and the signaling between the eNB base station.
With reference to figure 7, when following connecting for example, family/privately owned eNB checking UE:
In step S21, when the connection on initiating family/private cell was set up, UE 1a provided security information to the eNB 9a of family based on the information of exchange during initialization/mandate in connection request;
In step S22, the eNB 9a of family uses this security information to verify whether this UE 1a is authorized to visit this family/private cell;
In step S24, eNB accepts to connect foundation and indicates this connection to the UE backhaul signals if UE is authorized to.Otherwise if authentication failed, then the eNB of family 9a refusal connects foundation in step S25, correspondingly to the UE backhaul signals, and abandons Non-Access Stratum (NAS) information that is provided.
Connection mode
When UE 1 is connected to eNB 3a and be intended to be handed over to the eNB 9a of family, this process shown in Figure 8.
Fig. 8 illustrates the flow chart of the signaling between the subscriber equipment that is in enable mode, Mobility Management Entity and the eNB base station of the network portion that forms Fig. 1 in a second embodiment.
In step S31, UE provides security information to the eNB of its current connection 3a (source eNB) in measurement report, and this security information constitutes the connection request of the transfer that is triggered to family/private cell.
In step S32, in the transfer request of transferring between the preparatory stage network readezvous point ground from source eNB 3a to the eNB 9a of target family (directly or indirectly) through another node transmit receive from UE 1a and verify the required security information of UE.In the message that node works though this information mediates, its be included in " container " thus in this intermediate node only have to transmit this container to next node.So the use of container obtains the transparency, avoids the influence to the intermediate node that does not need message is worked.
In step 33, the eNB 9a of family comes data verification UE safe in utilization whether to be authorized to visit this family/private cell by sending signaling with UE;
If UE is authorized in step S33, then the eNB of family 9a accept to connect sets up and thus to source eNB 3a backhaul signals in step S34.Otherwise if authentication failed, then the eNB 9a of target family refusal is transferred to connect and is set up and thus to source eNB 3a backhaul signals in step S35.Then, this transfer is finished by convention.
The 3rd embodiment
In a third embodiment in accordance with the invention, provide a kind of mechanism that is used to limit measurement report, thereby UE 1 only reports the measurement of its home cell that is allowed to visit 102.Therefore, resource can not be wasted when UE 1a is in it and is not authorized near the home cell (as 102b) that uses.This embodiment can use with embodiment before, but also can use separately, thereby even UE 1 has carried out the unnecessary measurement of such sub-district, network capacity can they not be wasted owing to report.
The GSM cellular communication system uses the regular reporting by the cell measurement of UE, and still, in the E-UTRA system, in order to reduce the measurement signaling traffic load, measurement report is event driven, thereby just only reports measurement when particular event takes place when UE detects.Below be the tabulation of such event-driven message:
The Primary Common Pilot Channel of incident 1a-and cell association (CPICH) enters reporting range;
It is better than activating main CPICH that the main CPICH of the non-activation of incident 1c-becomes;
The change of incident 1d-best cell;
Even only measure when UE 1 carries out during near addressable family/private cell, as the third embodiment of the present invention, its also may since addressable family/private cell (as, have 102a) other a large amount of inaccessibles family/private cell (as, trigger measurement report 102b) and continually.These reports of great majority are otiose, and network is no stomach for known the sub-district of UE from the cell change of an inaccessible to another sub-district inaccessible.
Therefore, the measurement event that third embodiment of the present invention definition is new, it comprises the reference of the fact of UE having been checked the accessibility of sub-district.Its data that can visit of which home cell of UE storage indication.As knowing, each home cell sends tracing area ID (TA-ID).Check the TA-ID that is sent by the TA-ID about addressable home cell with respect to its storage, whether UE is can check measurement relevant with addressable home cell.
New measurement event is defined as " best cell on the frequency is addressable " and " best cell on the frequency is an inaccessible ".
The method of a third embodiment in accordance with the invention will be described with reference to figure 9,10A and 10B.
Fig. 9 is the flow chart that is illustrated in the third embodiment of the present invention in each stage of the subscriber equipment of the network portion that forms Fig. 1 and the signaling between the eNB base station.Figure 10 A is the flow chart that is illustrated in the process of carrying out at the eNB place in the third embodiment of the present invention, and Figure 10 B is the flow chart that is illustrated in the process of carrying out at the subscriber equipment place in the third embodiment of the present invention.
At first, network is carried out above about the described step S2 of first embodiment.When UE 1a was detected as near home cell, in step S41, whether the network decision made UE verify the accessibility of home cell.
In step S41, it initiates to measure control messages when network wishes to set up, revise or discharge the measurement of the neighbor cell that will be carried out by UE.The measurement control messages of a third embodiment in accordance with the invention is as shown in table 3.It is to send from the eNB of the current registration of UE.
Table 3
More specifically, this measures control messages:
Indication UE reply is used for the applied new configuration of frequency measurement of family/private cell; And
Comprise that UE should verify the indication (shown in italics in the table 3) of the accessibility of sub-district before the relevant incident of report.
In step S43, UE receive to measure control messages, and the configuration that checking comprises in measuring control messages is and if it receives this configuration then its return measurement in step S44 is finished message.This response message can have and the as above same format shown in the table 2.Message shown in each figure can be transmitted and any specific use of the channel that do not need to be associated via shared channel.
Do not comprise that in message under the situation of the requirement of verifying the sub-district, UE operates as traditional UE, report current measurement message the definition of (E-) UTRA network.
Really comprise under the situation of the requirement of the accessibility of verifying the sub-district that in message before the relevant incident of report UE revises its behavior to use additional events.
To most of incidents, as the example shows, the behavior that is caused is flat-footed.
Reporting event 1A: main CPICH enters reporting range.UE verifies whether this sub-district is addressable before being reported in the sub-district of paying close attention on the frequency.If not, then do not report this incident.In other words, this incident becomes:
Reporting event 1A
*: the main CPICH of addressable sub-district enters reporting range.
Reporting event 1B: main CPICH leaves reporting range.Once more, UE should be only to addressable cell report 1B.Generally (although not being general), this will be with the sub-district of reporting event 1A be corresponding before.Thereby, replacedly, can stipulate UE should be only to trigger event 1A before
*The sub-district report., first selection can be more flexible slightly.
Reporting event 1B
*: the main CPICH of addressable sub-district leaves reporting range.
Reporting event 1D: the change of best cell.For this incident, as previously mentioned, there are two interested situations.
Incident 1D
*: addressable sub-district becomes the best cell on the frequency.
Incident 1D
*: the inaccessible sub-district becomes the best cell on the frequency.
First situation in these can trigger transfer, and second situation should not trigger.
Therefore, in the third embodiment of the present invention, UE monitors a plurality of sub-districts by measuring.During one of incident that in step 44, defines for (E-) UTRA network when its sub-district triggering of having made measurement, in step 45, UE determines that in each case it is addressable to this sub-district and determines that in step S6 whether it be addressablely to communicate by letter being used to.As the result who determines among the step S6, when determining that it is not addressable when being used to communicate by letter, in most applications, in step S46, UE avoids reporting the incident corresponding with cell measurement.As the result who determines among the step S6, when determining that it is addressable when being used to communicate by letter, in step S47, it is reported to eNB3.In this case, UE reports on the implementation when cell measurement satisfies one of criterion of above modification only.
Above example is illustrated in this case, and not only UE 1 need do the accessibility inspection, also needs some specific rules.For example, at incident 1D
*Situation in, UE 1 must consider the sub-district of inaccessible, change with the best cell of report from addressable sub-district to the inaccessible sub-district, though it seems to there is no need to report the sign that becomes best inaccessible sub-district, there is no need perhaps to report that any of best cell from an inaccessible home cell to another inaccessible home cell continuously changes.
Various modifications, change and replacement will be obvious for the skilled person.For example, can understand the travelling carriage that terms user equipment (UE) can contain any kind that comprises cellular telephone, cordless telephone and PDA(Personal Digital Assistant), or fixed station.The term base station can be contained any ground, aerial or track honeycomb repeater equally.
For illustrative purposes, in the context of UTRA scheme (that is HSPA scheme) and the embodiments of the invention that used associated term description.Can understand also and can realize the present invention with wireless (as, radio) communication plan of other types.Generally, wireless communication system will comprise the Radio Access Network that comprises a plurality of base stations, and Radio Link and mobile communications are used in the base station.
Though preferred independent frequency is used for home cell, each side of the present invention will not considered to distribute to the frequency of home cell or channel and operate.
Except GPS, UE can be equipped with other Fine Mapping measuring systems, such as based on those of the sub-district triangulation of the signal that comes free eNB broadcasting, perhaps any other suitable navigation system.
Measure control messages and can comprise a plurality of " measuring command ", that is, and the modification of the foundation of a measurement, the release of another measurement and/or the 3rd measurement.
Similarly, measure the measurement that configuration can comprise several other types, as measuring the UE internal measurement in the frequency.
Though above the 3rd embodiment utilization is based on the report of incident, the principle of similitude can be applied to the periodic measurement report as GSM.
Though above the 3rd embodiment utilizes tracing area to be used for the accessibility inspection, can use any other broadcast singal or the signal characteristic of home cell.UE can store the tabulation of inaccessible home cell but not the tabulation of storing accessive home cell.
The present invention can realize by changing the software routines that is realized by existing hardware.So, the present invention also expands to the computer program that is suitable for the present invention is committed to practice, especially on the carrier wave or in computer program.Program can be source code, object code, such as partly for the code in the middle of source code and the object code of being in of compiling form, perhaps be suitable for any other form of in realizing, using according to process of the present invention.
Carrier wave can be any entity or the equipment of the program of can carrying.For example, carrier wave can comprise storage medium, such as the ROM of for example CD-ROM or semiconductor ROM, and the perhaps for example magnetic recording media of floppy disk or hard disk, perhaps optical recording media.In addition, carrier wave can be to transmit carrier wave, and such as electricity or light signal, they can be passed to UE or networking component via electricity or optical cable or radio or other means.
Carrier wave can be the integrated circuit that wherein embeds program, and this integrated circuit is suitable for carrying out relevant process, perhaps uses in the execution of correlated process.
Therefore, the present invention not only expands to the above embodiments but also expands to all such modification, change and replacements, according to aforementioned they will be obvious to those skilled in the art.
Although illustrate and described the present invention with reference to example embodiment more of the present invention, but those skilled in the art will appreciate that under the situation that does not deviate from the spirit and scope of the present invention that are defined by the following claims, can carry out various changes in form and details here.
Claims (27)
1. method that is used for measuring home cell at mobile communication system, this mobile communication system comprises network, this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage:
Obtain the position data of the position of indication first subscriber equipment at the network place;
Determine that by using the position data of being obtained whether first subscriber equipment is near home cell;
When first subscriber equipment during, send the cell measurement control messages of the measurement that is used to specify described home cell to first subscriber equipment via the base station from network near home cell;
Carrying out fine location at the first subscriber equipment place measures;
At the first subscriber equipment place, determine that based on described fine location measurement whether first subscriber equipment is near home cell; And
When first subscriber equipment during, carry out the measurement of described home cell at the first subscriber equipment place near home cell.
2. the method for claim 1, wherein position data comprises that first subscriber equipment just with the overlapping sub-district of home cell gets in touch.
3. the method for claim 1, wherein position data comprises that first subscriber equipment with in the overlapping tracing area of home cell registers.
The method of claim 1, wherein position data comprise first subscriber equipment be in the overlapping geographic area of home cell in.
5. the method for claim 1, wherein the fine location measurement comprises the satellite navigation measurement.
6. the method for claim 1, wherein described home cell operates in not on the frequency of being used by other network cells.
7. the method for claim 1, wherein control messages is the message of specifying the frequency that will measure, and comprises the indication whether expression measures the home cell frequency according to subscriber equipment.
8. method that is used for measuring home cell at mobile communication system, this mobile communication system comprises network, this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprises at least one Home eNodeB that defines a plurality of home cells, in described a plurality of home cell at least one and described first user device association and not with described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage:
Obtain the position data of the position of indication first subscriber equipment;
Determine that by using the position data of being obtained whether first subscriber equipment is near home cell;
When first subscriber equipment during, send to first subscriber equipment via the base station relevant from network and to measure control messages with described home cell near home cell; And
Depend on the described measurement control messages that is received, carry out the measurement of described home cell at the first subscriber equipment place;
Wherein, when setting up or transmit when relating to the session of described first subscriber equipment, be sent to the base station about the positional information of the position of the described home cell in the zone of the communication cell that produces by the base station to the base station.
9. method as claimed in claim 8, wherein, described home cell operates in not on the frequency of being used by other network cells.
10. one kind is used for measuring home cell so that subscriber equipment is transferred to the method for the home cell of being operated by the target Home eNodeB from the communication cell of being operated by source base station at mobile communication system, this mobile communication system comprises network, and this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage:
Transmit security information via described source base station to described target Home eNodeB from described subscriber equipment;
Verify by described target Home eNodeB information safe in utilization whether described subscriber equipment is authorized to be connected to the sub-district; And
When described subscriber equipment is authorized to be connected to described sub-district, accepts the connection of described subscriber equipment by described target Home eNodeB and set up.
11. method as claimed in claim 10, wherein, described transmission comprises the transparent transmission of described security information.
12. method as claimed in claim 10, wherein, described home cell operates in not on the frequency of being used by other network cells.
13. one kind is used to measure home cell in mobile communication system so that limit from the method for first subscriber equipment to the cell measurement of the described home cell of network-reporting, this mobile communication system comprises network, and this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage:
Signal the measurement control messages from described first subscriber equipment;
Carry out a plurality of cell measurements at the described first subscriber equipment place;
At each described measurement, verify described first subscriber equipment visited cell of whether having the right; And
Depend on described verification step decision and whether report described cell measurement.
14. method as claimed in claim 13, wherein, described home cell operates in not on the frequency of being used by other network cells.
15. one kind is used for operating communication network so that measure the method for home cell at mobile communication system, this mobile communication system comprises network, and this network comprises: a plurality of base stations that are used to define communication cell; With first and second subscriber equipmenies that are used for network service, described a plurality of base station comprise definition and described first user device association and not with at least one Home eNodeB of the home cell of described second user device association, with overlapping by the two communication cell that can use of described first and second subscriber equipmenies, described method comprises step to described home cell on coverage:
Signal the measurement control messages from network to subscriber equipment;
Wherein, described measurement control messages comprises the field that described first subscriber equipment of instruction enters limited Report mode, in this pattern, described first subscriber equipment is carried out the cell measurement for a plurality of sub-districts, verify based on cell measurement whether described first subscriber equipment is authorized to visit described sub-district, and determine whether the reporting cell measurement based on checking.
16. method as claimed in claim 15, wherein, whether decision reports that the step of described cell measurement also comprises step: depend on described measurement and whether represent that the change incident determines whether to report described measurement.
17. method as claimed in claim 16, wherein, described change incident comprises that sub-district and this sub-district that described first subscriber equipment has the right to visit become best cell.
18. method as claimed in claim 16, wherein, described change incident comprises that sub-district and this sub-district that described subscriber equipment haves no right to visit become best cell.
19. method as claimed in claim 15, wherein, described home cell operates in not on the frequency of being used by other network cells.
20. a method that is used for measuring at cellular network home cell comprises step:
Send signal to indicate its energy measurement and report home cell channel to subscriber equipment;
Stipulate that first subscriber equipment will measure and report described home cell channel when receiving such signal; And
Regulation can be made second subscriber equipment that fine location measures and will make described fine location measure when receiving such signal, and and if only if measures and report described home cell channel when being detected as it near described home cell channel.
21. method as claimed in claim 20, wherein, described home cell operates in not on the frequency of being used by other network cells.
22. a method that is used for measuring at cellular network home cell comprises step:
Transmit control message to indicate its energy measurement and report home cell channel to subscriber equipment; And
Described home cell channel can be measured and report to the regulation subscriber equipment when receiving such control messages,
Wherein, network is arranged to transmit to each base station of user equipment registration the positional information of the position of the described home cell of having the right to use about subscriber equipment, detects during at approaching described home cell and based on the measurement of described detection limit home cell when described user terminal allowing.
23. method as claimed in claim 22, wherein, described home cell operates in not on the frequency of being used by other network cells.
24. operate cellular network to be used for the method that home cell is measured, comprise step for one kind:
Allow subscriber equipment transfer, directly described home cell to be verified from network cell to the family sub-district, use in transfer from described network cell and security information user device association, described subscriber equipment is transferred to described home cell from described cellular network.
25. method as claimed in claim 24, wherein, described home cell operates in not on the frequency of being used by other network cells.
26. a method that is used for measuring at cellular network home cell comprises step:
Send signal to subscriber equipment, this signal indication is for any measurement of the given channel corresponding with home cell, and described subscriber equipment should determine whether it has the right to use described home cell and whether report that in decision use is described definite in the described measurement.
27. method as claimed in claim 26, wherein, described home cell operates in not on the frequency of being used by other network cells.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2008/003683 WO2009157600A1 (en) | 2008-06-26 | 2008-06-26 | Method for measuring home cell in mobile communication system |
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| CN101884237A true CN101884237A (en) | 2010-11-10 |
| CN101884237B CN101884237B (en) | 2013-07-10 |
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| JP (1) | JP4938132B2 (en) |
| CN (1) | CN101884237B (en) |
| WO (1) | WO2009157600A1 (en) |
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| CN102547920A (en) * | 2011-01-07 | 2012-07-04 | 美商威睿电通公司 | Communication method, access network device, and communication device using the same and communication system |
| CN111108775A (en) * | 2017-09-21 | 2020-05-05 | 诺基亚技术有限公司 | Handover improvements for air-to-ground systems |
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| JP5890319B2 (en) * | 2010-01-08 | 2016-03-22 | インターデイジタル パテント ホールディングス インコーポレイテッド | Managing power consumption at base stations and remote access points |
| US9100899B2 (en) | 2010-05-14 | 2015-08-04 | Qualcomm Incorporated | Apparatus and method for mobile search based on search triggers |
| US8699461B2 (en) * | 2011-08-19 | 2014-04-15 | Hitachi, Ltd. | Optimized home evolved NodeB (eNB) handover in an LTE network |
| JP6397955B1 (en) * | 2017-04-07 | 2018-09-26 | パナソニック株式会社 | Terminal device, communication system, and communication quality measurement method |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2009157600A1 (en) | 2009-12-30 |
| JP2011501604A (en) | 2011-01-06 |
| CN101884237B (en) | 2013-07-10 |
| JP4938132B2 (en) | 2012-05-23 |
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