CN1871867A - Virtual cellular radio network - Google Patents
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Abstract
A virtual network (24) is created by providing antennas (14) controlled by the same base station (8) with control signals of different virtual base stations. A virtual network controller (20) comprised in the base station is arranged for performing handovers between sets of physical channels of the different virtual base stations. The handover is preferably performed transparently towards the main communication network. This transparency is preferably provided by associating physical channels of virtual base stations with communication channels of the main communications network. Preferably, position estimations of a mobile terminal (6) connected to the base station (8) are performed by the virtual network controller (20), whereby such estimations can be kept secret within the virtual network (24).
Description
Technical field
Relate generally to cellular communications networks of the present invention more particularly, the present invention relates to a kind of like this network, and it has less geographically sub-district.
Background technology
The possibility of determining position of mobile equipment has made application developers and wireless carriers can provide based on the service in place and has known the service in place.Such example is a guide system, the help of doing shopping, friend's detector and other provide the information service of this mobile subscriber's environmental information for the mobile subscriber.
Except commerce services, the government of several countries has also required Virtual network operator can determine the position of urgent call.For example, the administration request among the USA (FCC E911), it requires be able to determine the position of certain percentage in all urgent calls.Compare with outdoor environment, what difference the requirement of indoor environment is not had.
In outdoor environment, location estimation can use the externalist methodology that is used for determining the position to carry out, for example, and as the method for auxiliary-GPS (A-GPS) based on GPS (global positioning system).Location estimation can also use wireless network self to carry out.The method of using wireless network can be divided into two main groups.First group comprises the method based on the affiliated radio plot of portable terminal, for example, and by using sub-district-ID or E-CGI (enhancement mode Cell Global Identity).Second group is used from the measurement of the radio signal of several base stations (BS) and use that for example the time difference (TD) is determined terminal location.
In order can be connected to the mobile network or carry out to switch when being connected to network, portable terminal is constantly measured usually from its base station with from the available signal of other base station.These signals normally are intended to be used to measure the control signal of the radio condition of transmission, and together with data, control signal comprises about how being established to the information of the connection that sends the base station.Especially, this control signal comprises such data, and wherein, these data self constitute base station identification data or constitute base station identification data with the carrier frequency that sends this control signal.Like this, portable terminal can obtain to send the sign of base station, and estimates radio condition.In GSM (global system for mobile communications), portable terminal is editor's this information in neighbor list usually, and this tabulation is sent to network as information.
Location estimation can be based on the measurement in neighbor list.Then, in conjunction with understanding, use and the distance of this radio base station and the relation between the radio condition this exact position, base station.In communication network, the position of this base station is known.This means and easily neighbor list to be used for location estimation according to algorithms of different.The accuracy and the cell size of location estimation are proportional.
The signal that (TD) the method utilization of triangulation method or time difference is associated with two or more base stations.These signals are used to calculate the position at portable terminal place or calculate portable terminal and are positioned at apart from place how far, base station.This calculating is propagated relative mistake or the absolute difference of used time based on signal between terminal and different base station.The accessible accuracy of TD method depends on system configuration, physical state and radio condition.Typically, in mobile telephone system, the accuracy of ID method is a 50-150 rice.The TD method relatively expends time in and resource.
The fact of the unique trait signature that fingerprint method utilizes all places more or less to have to be received radio signals.This is the multipath in building or barrier and the result of reflection.By the characteristic radio of different places signature is stored in the database, just may by the signal that will receive sign be stored in database in signature compare to determine the place of equipment.The database that fingerprint method need be brought in constant renewal in.High result also depends on usually can mate from the signal of homology or different base station not.
Be positioned at indoor terminal and have usually to the connection of the base station that covers the peripheral chambers exterior domain, the quality that terminal is positioned at when indoor is lower than the quality that terminal is positioned at when outdoor.In order to improve the situation of indoor covering, many bigger buildings have been equipped housqe telephone system.Under the most of situation of indoor heating system usually by a base station and distributing antenna system or reveal cable antenna and form.Building for covering big zone uses repeater usually.This makes whole building look like a big radio plot, and can not determine where terminal is positioned at building.In addition because very faint from the signal of outdoor base station, usually can not application examples as triangulation more complicated method.
A kind of simple solution is to use other not locating based on the system of any mobile telephone system.This can be the indoor GPS system, based on other transducer solution of the system of WLAN (WLAN (wireless local area network)) or bluetooth or some.Yet such system needs other complex device, and terminal also is equipped with special hardware and/or software, and this makes that this solution cost is very high.
Another kind of simple solution is the quantity that increases indoor base station, has reduced cell size like this.Because this solution can more effectively be used the communication resource again, therefore also will increase total available resources.Yet, because the cost of this solution will be very high, so the base station is expensive equipment.In addition, increase, will increase necessary switching times so introduce littler sub-district because portable terminal is crossed over the possibility of cell boarder.By introducing necessary very little sub-district, accurate location, number of handovers increases greatly.Therefore, BSC that is connected or the RNC load that is used to handle changeover program also will increase greatly.
In some applications, the introducing that has a hierarchy of one deck macrocell and one deck Microcell helps to have solved the problem of frequent switching.Mobile phase is assigned to macrocell to fast portable terminal, and slowly mobile or accurate static portable terminal can be assigned to Microcell.Like this, can carry out more accurate location estimation to the portable terminal that slowly moves.Yet the introducing of macrocell layer and microcell level needs other communication channel, because in ordinary circumstance, macrocell can not use identical communication channel with Microcell.In addition, manage this hierarchy and require great effort very much, not only need to consider hardware but also need to consider software.At last, the exact position of fast moving terminal determines to remain impossible.
In some cases, for local feature, require to have accurate position and determine.For example, in big office building or product factory,, then can find any employee's current place if the employee has carried mobile device.This is very favorable to office administration and factory management, but for Virtual network operator, the place of " in specific office building inside " is determined enough.In addition, can reveal company's secret at some local data of for example interior of building.Therefore, need to have accurate location estimation in many cases, but concerning whole communication network, except emergency, this is normally disabled.In the prior art, it is impossible visiting locating information selectively.
Summary of the invention
The problem that prior art exists is, if be not increased to the signaling traffic amount of radio access station controller greatly or do not increase management work to layered cell structure greatly, then is difficult to improve the accuracy of location estimation.Another problem that prior art exists is that it is impossible making location estimation optionally can be used for the heterogeneous networks user.
An object of the present invention is, a kind of method and apparatus that improves accuracy of position estimation is provided.Another object of the present invention provides a kind of method and apparatus that does not increase the traffic loads on the radio access station controller.Another purpose of the present invention provides a kind of method and apparatus that makes location estimation Information Selection ground can be used for different communication network side and/or a certain regional area.A purpose provides such method and apparatus again, and it strengthens by the radio net in the corresponding topical area may to local user's (for example, the building owner) control.
By realizing above-mentioned purpose according to the method and apparatus of institute's accessory claim.Summarize in fact, provide the signal of virtual radio access station to produce virtual network by giving antenna by same radio access station control.The virtual network controls device is set for to carry out between the sets of physical channels of different virtual radio access station and switches.Preferably, concerning main communication network, carry out pellucidly and switch.Preferably, by the physical channel with the virtual radio access station be associated with the communication channel of main communication network provide the transparency.Preferably, location estimation is carried out by the virtual network controls device, and thus, this estimation can be inner secret in this virtual network.
Advantage of the present invention is that to a certain extent, this virtual network can be managed separately with main communication network.This can be reduced in greatly between radio access station and the radio access station controller and switch relevant traffic carrying capacity.In addition, utilize the switching of virtual radio access station and location estimation in this virtual network, to maintain secrecy.
Description of drawings
By understanding the present invention and other purpose and advantage thereof best together with description subsequently with reference to the accompanying drawings.
Figure 1A is the indicative icon of cellular communication system;
Figure 1B is the block diagram that connects network element in cellular communication system;
Fig. 2 is the diagram of representative content in the neighbor list;
Fig. 3 is the indicative icon according to the distributing antenna system of prior art;
Fig. 4 is the indicative icon of a radio net part according to an embodiment of the invention;
Fig. 5 is the indicative icon that has the radio net part of distributing antenna system according to one embodiment of the invention;
Fig. 6 A and Fig. 6 B be according to an embodiment of the invention the virtual network controls device respectively at the indicative icon of the mapping function of chain of command and data surface;
Fig. 7 A and Fig. 7 B are the indicative icons of other virtual network controls device embodiment according to the present invention;
Fig. 7 C is the carrier wave indicative icon of usefulness again in a virtual cellular network embodiment according to the present invention;
Fig. 8 is the block diagram according to a radio base station embodiment of the present invention;
Fig. 9 is according to the block diagram of another radio base station embodiment of the present invention;
Figure 10 is the diagram of conversion between inner neighbor list and external neighbor tabulation;
Figure 11 A-C is the sub-district plane graph of the virtual network according to the present invention; With
Figure 12 is the flow chart that is shown in according to key step among the embodiment of the inventive method.
Embodiment
In order fully to understand operation of the present invention, at first provide one section short review controlling signaling and general position estimation in the cellular network.
In the major part of this detailed Description Of The Invention, based on the system of GSM technology as example embodiment.Yet basic thought of the present invention is not limited to the embodiment of these specific descriptions, but can be applicable to many different cellular communication systems usually.
Schematically illustrate a cellular network 10 in Figure 1A, the basic thought of cellular network 10 is to be the graticule mesh of sub-district 4A-4J with network struction, and wherein, each sub-district 4A-4J is the zone that is covered by a radio base station 2A-2J.Communicate via different radio resources.For fear of the interference between mobile phone in neighbor cell 6 and the radio base station 2A-2J, different resource or communication channel are used in the communication between mobile phone 6 and the base station 2A-2J, that is, and and slightly different (for example, frequency and coding) configuration or setting.The quantity of those resources or " configuration " is restricted.In gsm system, resource is formed by the carrier frequency that is allowed of limited quantity, and they are used for isolating the communication of different districts.In WCDMA (Wideband Code Division Multiple Access (WCDMA)) system, the feature of resource is the different coding with limited quantity.The result of limited quantity radio resource means that careful planning network 10 is very important.
Mobile radio station (MS), mobile phone, portable terminal and mobile phone all refer to can be in the zone that communication system covers mobile equipment.These terms will be used as the expression that is equal in prospectus of the present invention.This equipment is mobile phone, handheld computer typically, that is, so-called PDA(Personal Digital Assistant) or other are equipped with the device or the equipment of the radio receiver that is used for honeycomb or mobile network.
In Figure 1B, illustrate the block diagram of the network element in the GSM network.MSC (mobile services switching centre) 50 is connected to other MSC via (not shown) GMSC (MSC gateway) usually, or is connected to other external network 52.MSC 50 is connected to one or more BSC (base station controller) 60, and has conversion equipment 51, and this conversion equipment 51 connects those and is connected to heterogeneous networks unit on this BSC 60.BSC 60 is in charge of one or more base stations 8, and is gone to and from the traffic carrying capacity of MSC 50 and different base station 8 by translation function 61 conversion.BSC 60 also has and is used to carry out device for switching 62 and is used for the device 63 that executing location is estimated, device 63 is for example by using the position of being estimated to be connected to the portable terminal of base station 8 by the neighbor lists of portable terminal report.Alternatively, the device 63 that is used for the estimated position can be set for another node report and position in network and determine the information that is associated, wherein, carries out actual estimated in another node in this network.Base station 8 comprises transceiver radio interface 71, and its traffic carrying capacity with the different channels frequency is divided into transceiver unit 72A and 72B.Transceiver 72A, the output of 72B is multiplexed by multiplexer 74, and sends to antenna 14.Function in the base station 8 is by base control 73 controls.
Use the communication of cellular communication system to be usually directed to data-signal and the control signal that on Traffic Channel and control channel, sends respectively.Three class control channels are arranged in gsm system.BCH (broadcast channel) comprises the channel that the information of relevant sub-district and network parameter is sent to continuously portable terminal.For example, BCCH channel (Broadcast Control Channel) is used to send cell-specific information.Communication on the BCH channel occurs in DL (down link) direction.The BCH data are provided by base station 8.
Other control channel is used for paging, access function and the signaling between network and portable terminal before calling out or during calling out.For example use such control signaling that the measurement of for example adjacent transmitters is notified to network by portable terminal.The signaling that relates to authentication is also carried out by such control signaling.For CCCH (public control channel) and DCCH (Dedicated Control Channel), information is provided to BSC or MSC usually, perhaps provided by BSC or MSC, and information is only come relaying by the base station.
Return Figure 1A, in most cellular network 10, the condition of acceptance of portable terminal 6 continuous measurement radio signals.Reason has several.One is to revise transmitting power, sends with unnecessary high transmit power avoiding.Usually, but not necessarily, the radio base station with best radio conditions is the radio base station that is used to connect cellular network.In most of the cases, the base station with best radio conditions also is from the nearest base station of mobile phone 6.In Figure 1A, mobile phone 6 connects via base station 2F.Like this, mobile phone 6 is positioned at the sub-district 4F of this certain base station 2F.Radio plot is defined in the zone around the base station, and in radio plot, the base station is to have the base station that connects to the best of mobile phone.Because cellular network is known the launch point position that is associated with the base station, the sign that therefore has the base station of best radio conditions has also provided the approximate place estimation of mobile phone.Cell size and base station density are proportional.Therefore, in Figure 1A, can infer that mobile phone 6 is current in the 4F of sub-district.
Will be connected to which base station in order to know, mobile phone is also constantly measured the signal that sends from other base station.These signals are intended to be used to measure the dedicated control signal of radio condition between mobile phone and the base station.Together with data, these signals comprise about how being established to the information of the connection that sends this signal base station.As mentioned above, carry out communication in the neighbor cell by link, to avoid interference with slightly different configuration.Usually use those different configurations to transmit control signal.As an example, in GSM, send from the control signal of a base station frequency different with the control signal that sends from adjacent base station.Yet distance base station far away can be to use same frequency with pattern again.Be associated with different districts but the base station that transmits control signal on same frequency in order to separate those, control signal also comprises can be distinguished from the control signal of a base station and out of Memory from the control signal district of another base station.These information have provided the possibility of identification certain base station separately or with the frequency of control signal in combination.In other words, control signal comprises base station identification data.In GSM, so-called colour code is used for different base stations separated from each other.
Network is notified which base station of portable terminal nearby usually.Then, this mobile phone is known which type of control signal of searching.If the unavailable information that will measure, mobile phone can also be measured from each other signal of base station.This may be for example not cover and situation in the zone that other operator covers in this user's operator.The measurement result of the control signal that sends from the base station is stored in the portable terminal with coded system usually.In portable terminal, such adjacent bast station list or up-to-date with the corresponding data maintenance of this tabulation at least, and usually be called as neighbor list.
In Fig. 2, illustrate an example of this neighbor list that is used for Fig. 1 situation.With this list category, wherein, the base station with best radio conditions is positioned at the top of this tabulation based on radio condition quality.Each row 100 of this tabulation is meant a certain base station.In this example, first row 102 comprise Base Station Identification.Second portion 104 comprises additional information.In the present embodiment, secondary series 105 comprises general information.The 3rd row comprise with the data that for example measurement of the radio condition quality of each base station are associated, signal quality, prohibition flag or similarly determine important data to switching to the 5th row 106-108.
The measurement result of this tabulation is continuously delivered to the base station, has up-to-date radio condition to keep network.Thereby the base station or any webserver that is connected to this station can be retrieved the content of the neighbor list of any portable terminal that connects.
In present disclosure specification, will use expression " position " and " place ".The meaning of " position " is the geographical position (for example, WGS-84 datum mark) that provides with the coordinate or the number of degrees.It can also comprise orientation and/or direction, speed, acceleration or the like, can also provide the position with relative measurement." place " is more personalized position, defined by the type of mechanism or dwelling house, and be perhaps relevant with mechanism or dwelling house.The example in " place " has: " military area/factory ", " hospital ", " government bodies ", " theater ", " near the emergency exit ".Suppose that expression " place " also comprises the place that is comprised by " position ".
Prevailing location estimation is to determine that this apparent position is for having in the sub-district, the base station base station of neighbor list top (that is) of best radio connection with portable terminal.In Figure 1A, this means that certain probability can infer that mobile phone 6 is positioned at sub-district 4F.Several item in the neighbor list is used for algorithms of different means and to calculate that wherein the sub-district is the sub-district that mobile phone is positioned at than the better accuracy in sub-district.In Fig. 2, see that base station 2G is in the second place in neighbor list.Mobile phone is positioned at 60 ° of sectors towards sub-district 4G, with dashed lines mark in Figure 1A so probably.In addition, because base station 21 is the 3rd clauses and subclauses in neighbor list, also may portable terminal 6 be positioned on half of this nearest sector of sub-district 4I.In addition, can obtain other accuracy by considering that for example signal intensity ratio waits.
The conversion or the calculating that neighbor list are transformed to position and/or place estimation can be carried out in cellular system or carry out in this terminal.If carry out location estimation in this system, for example, in the webserver, then portable terminal must send to radio base station with neighbor list or with the corresponding measurement of this neighbor list.If the own executing location of portable terminal estimates that then on basic conception, this estimation can comprise for example determines immediate base station, for example with sub-district ID form.In some cases, such location estimation can enough be supported the service that many position-baseds are determined.Yet if estimate actual geographical position, portable terminal at first need be about the information of this specific environment.Such information should comprise the known location of different base station at least, and for example can derive this information from the instruction of the relevant base station that will measure.Other may also come in handy to the distinctive information of place, building or environment.This peculiar information about for example specific buildings can comprise cartographic information, by cartographic information, can determine to get rid of some zones that portable terminal can not be positioned at by the position.It for example is conspicuous within the solid wall that portable terminal can not be positioned at, and portable terminal not more than ground 10 meters to spiral in the air also be likely.
Indoor covering in the cellular system usually has a lower quality than outdoor.Therefore, many bigger buildings have their home cell or a plurality of home cell.Illustrate a kind of typical existing system among Fig. 3.Distributing antenna system is served in a single base station 8, and this distributing antenna system comprises a plurality of antennas 14 that distribute at room area.Can have repeater 12, so as in distribution procedure enhancing signal.Because all antennas all provide identical information, therefore, portable terminal 6 is considered as all antennas 14 emission system being associated with a single sub-district 4 together.In addition, because portable terminal 6 is not known its actual and which antenna communication, therefore, exact position described above estimates that unlikely work is good.A kind of mode that improves accuracy of position estimation provides littler sub-district.
Suppose that distributing antenna system and leakage cable system and the subsystem supplied with by repeater or any other effective parts are particularly suitable for implementing the present invention.Term " antenna " both had been used for an antenna of distributing antenna system usually, was used to reveal the part of the leakage cable on the cable antenna again.Yet, the present invention can be applicable to might type antenna system.
Connect to the typical case of the base station that is used for outdoor covering is bad, combine, also make to be difficult to or even may not to be used for triangulation being positioned at outdoor base station with environment with many declines.In the building that extensive area (such as the airport) is upward expanded, use repeater at some.So the sub-district becomes even be bigger, this causes when mobile phone is connected to this sub-district, and the zone that this mobile phone was positioned at is bigger, that is, accuracy of position estimation is lower.
Accuracy of position estimation based on neighbor list is proportional with cell size basically.Usually, less sub-district can be realized more accurate and location estimation accurately.Yet the sub-district is by base stations control, and the base station is very expensive usually.At least can not effectively participate in the method for locating in the base station that is used for location estimation, be very limited in this needed function in base station that is used for location estimation.In fact, send from well-defined position if only comprise the control signal of base station identification data, this is enough for location routines.
As mentioned above, the present invention can be applicable to most of cellular communications networks.Yet, also mention above, think at present to be applied to be arranged in distributing antenna system, to reveal cable system or especially favourable during the location estimation of the portable terminal of the subsystem supplied with by repeater as the present invention.The accuracy of location determining method depends on and for example implements building of the present invention or environment and other prerequisite and various customer demand according to the present invention.Yet, think that the position precision of 20-50 rice is very actual.The present invention can be advantageously used in locating those and be positioned at indoor heating system, underground railway system (subway) and be connected to portable terminal in the subsystem of macrocell system (for example, being connected to the tunnel of the radio macrocell that uses repeater).
Basic thought of the present invention is to divide into several less virtual subdistricts for a short time with bigger.Virtual subdistrict is virtual, and its meaning is that for grand network virtual subdistrict is not known or is not fully known at least.Virtual subdistrict constitutes local virtual cellular network jointly, and this local virtual cellular network is by the base stations control with VNC (virtual network controls device).Usually the management of carrying out in network components is contained among this VNC to many smart packages that mobile phone connects, and wherein, network components for example is BSC or the RNC among the WCDMA (radio network controller) among the GSM.In Fig. 4, schematically illustrate an embodiment of radio net according to the present invention.Here, four antennas 14 are connected to base station 8 by the antenna cable 16 that separates.Each antenna 14 sends on different broadcast channels and has the control signal of virtual base station identification data separately, and each antenna 14 constitutes the center of virtual subdistrict 7 in local virtual cellular network 24.Base station 8 further is connected to BSC via connecting 22.Base station 8 comprises VNC 20 physically and/or logically.
According to the present invention, VNC 20 comprises the function that is used for the switching of managing virtual network internal.If portable terminal 6 moves to another virtual subdistrict 7 from a virtual subdistrict 7, then VNC 20 has management in the fullliability of switching between the available channel on the respective antenna 14.
In a preferred embodiment of the invention, VNC stops any link information that is connected that has with local virtual cellular network 24.The BSC that this means other parts in control base station 8 and the cellular network does not experience virtual subdistrict fully.From main nexus, base station 8 and VNC 20 come work as the base station of single subdistrict.
The several virtual subdistricts 7 that the sub-district are divided into virtual network 24 cause providing more accurate information about its physical location for portable terminal 6.Can measure from each control signaling in the antenna 14, and this control signaling can be more accurate position and determines to provide a basis.Simultaneously, what the sub-district that main communication network is not increased was divided bothers, and perhaps bothers the low-down degree that is reduced at least.The switching demand of supposing that improves in virtual network 24 is managed in inside, that is, by the VNC management, and BSC only handles switching and 24 the switching from other external cell to virtual network from virtual network 24 to other external cell.In a preferred embodiment, BSC does not even know the existence of virtual subdistrict 7.
When the virtual cellular network that produces as shown in Figure 4, must provide a plurality of new antennas usually.Yet, if thought according to the present invention for example in distributing antenna system, realize, can use existing antenna.In Fig. 5, schematically illustrate one embodiment of the present of invention with distributing antenna system.Four antennas 14 of distributing antenna system 15 are connected to base station 8 by common antenna cable 17.As mentioned above, each antenna sends on different broadcast channels and has the control signal of virtual base station identification data separately, and each antenna 14 constitutes the center of virtual subdistrict 7 in local virtual cellular network 14.Base station 8 further is connected to BSC by connecting 22.Base station 8 comprises VNC 20 physically and/or logically.In the present invention, VNC 20 also comprises signal injector 26, and the control signal that this injector will arrive all antennas 14 is multiplexed on the common antenna cable 17.On each antenna 14, provide signal to select 28, this selector filters the signal on common antenna cable 17, so that extract the signal relevant with this specific antenna.Below these equipment will be described in further detail further.In such configuration, VNC 20 comprises central location 20 and a plurality of satellite unit 28, but they logically remain the parts of base station 8.
Fig. 6 A and Fig. 6 B diagram make external system cannot see the principle of virtual network 24 by schematically representing the channel that can be used for control signal and data-signal respectively.Five sets of physical channels c0-c4 have been described in Fig. 6 A.In the present embodiment, suppose it is gsm system, and sets of physical channels is corresponding with different carrier frequency.At the right part of this figure, be shown in the channel status of BSC side.In main network side, carrier frequency c0-c4 is assigned to the base station that has BSIC " BS0 ".Carrier frequency c0 is used for control channel, particularly time slot 0 (from 8 time slots).Therefore carrier frequency c1-c4 is the time slot that carrier wave c0 is not used in the control signaling as pure Traffic Channel.
In virtual network side, carrier frequency c0-c4 is assigned to has BSIC " VBS0 " respectively to " CBS4 " five different virtual base stations.Each virtual base station has been assigned with a particular frequency carrier c0-c4, should both transmit control signaling, data services again on this particular frequency carrier.
Plan transmits control signal 31 at the particular time-slot of carrier frequency c0, and this control signal 31 is used to be connected to the portable terminal of base station BS 0.Carrier wave, or in fact plan the signal that on these carrier waves, sends, be sent to VNC 20.VNC 20 comprises channel translator 30, and its communication channel with external network is associated with the physical channel of internal virtual cellular network.This is by line 32 diagrams.Here can see that the control signal 31 that arrives at the time slot of c0 is associated with the time slot in virtual network side carrier wave c3, shown in line 29.Carrier wave c3 is assigned to virtual base station VBS3.The content of control signaling BCH part is provided by the base station usually.In the present invention, in VNC, this function is integrated in the control signal injector 33 easily.In this example, control signal injector 33 provides the BCH data of definition VBS3, and these data is inserted in the control signal of heading virtual network transmission.In addition, according to the relevance 32 of channel translator 30, may must all revise the DCCH control signal in UL (up link) direction and DL direction.This is carried out by DCCH modifier 39.In the DL signal, any data that relate to employed actual carrier or used by Base Station Identification are exchanged for the corresponding data that is used for associated channel in virtual cellular network.In the UL signal, carry out corresponding exchanges data.
Illustrate corresponding data surface among Fig. 6 B.The data service 34 that is associated with control signal 31 among Fig. 6 A is assigned to the particular time-slot of carrier wave c4 in main network side.The channel translator 30 of VNC 20 is associated the time slot of this input channel with the carrier wave c3 36 of virtual network side, by line 35 diagrams.Data content is not changed.By this configuration, master network will not known the actual channel used in fact in virtual cellular network.
Owing to have only VNC 20 to understand dedicated radio link in virtual network fully, so the switching of virtual network inside must be managed by VNC or the equipment that is connected on this VNC.Therefore, VNC 20 also comprises handoff manager 37.When the signal level of the portable terminal that is connected to virtual base station VBS3 was too low, it need switch.In the UL direction, the neighbor list of terminal form with measurement report on DCCH sends discontinuously.Because DCCH modifier 39 can be visited this information, can make by VNC 20 the suitable selection of switching.Suppose that portable terminal has moved to from the nearer place of VBS2, then handoff manager 37 is sent the association that instruction changes channel translator 30.In main network side, the control channel on c0 at present and the time slot of the carrier wave c2 of virtual network side (that is, 29 ') be associated 32 '.Similarly, according to 35 ', the association of Traffic Channel changes to the Traffic Channel among the carrier wave c2,36 '.
Master network will not known such handoff procedure fully.Therefore, BSC will can not experience owing to number of handovers increases any load that causes increases.Even VNC 20 is not configured to the pseudo channel space is separated fully with master network in some applications, VNC 20 also can manage actual switching, only gives BSC with new application report then.
In radio net, wherein, this no network of wires has logically the virtual cellular network of separating with this radio net remainder, and in addition, position determining means must be incorporated among the VNC.In Fig. 6 A and Fig. 6 B, position estimator is by reference number 38 expressions.This position estimator 38 can access channel converter 30 association, and by the accurate local data of visit antenna and the data that certain carrier wave is connected with certain antenna, this position estimator 38 can easily be determined the first approximation of shift position.In addition, because the DCCH data are modified in VNC usually, therefore, can also easily provide from the information in the portable terminal neighbor list for position estimator 38.This information can be used for improving location estimation then.Yet, can carry out the actual position estimation of this mode according to the process of known prior art.
In Fig. 7 a, illustrate situation about having than the more available channel of virtual subdistrict.In the figure, control channel is expressed as solid line, and Traffic Channel is expressed as dotted line.In this virtual network, comprise three virtual base station VBS0-VBS2.Each virtual base station takies a carrier wave that is used to control signaling, is carrier wave c0-c2 in this example.In virtual network side, carrier wave c3 and c4 are also as pure Traffic Channel.Be associated from each control channel among the c0-c2 on the control signaling of the control channel among the c0 on the main network side and the virtual network side.In addition, service signal not only is associated with each dedicated channel c0-c2, and is associated with general service channel on c3 and the c4.In one embodiment, the Traffic Channel on c3 and c4 also can be a dedicated channel,, is intended to be used for a certain virtual base station that is.Yet in another embodiment, the Traffic Channel on c3 and the c4 can constitute the public resource that use all base stations.Yet VNC must hold the record using which public services channel.
Fig. 7 b illustrates a kind of ratio and has system than the more virtual base station of available carrier wave.In this this situation, have only three carrier wave c0-c2 to use, but have 8 virtual base station VBS0-VBS7.For virtual base station VBS0, VBS3 and CBS6 have distributed identical signaling channel carrier frequency.Be similarly VBS1, VBS4 and distributed identical signaling channel carrier frequency, also distributed identical signaling channel carrier frequency with VBS5 in addition for VBS2 with VBS7.In Fig. 7 c, illustrate sub-district, can see that here virtual network is configured to use carrier wave usefulness again, at least those carrier waves that are used to control signaling are used again corresponding to these virtual base stations.Two neighbor cells do not use same carrier wave, and the sub-district of apart from each other can.VNC will be associated with suitable control signal carrier wave on the virtual network side in the control signal of c0 carrier wave on the main network side.Also the BCH for virtual network side provides virtual base station identification data, and this makes can distinguish the virtual base station that uses same carrier.For example, on same carrier, send, but the BCH that is intended to be used for VB80 is different with the BCH that is intended to be used for VB83 to the control signal of VBS0 and VBS3.In this embodiment, virtual base station VBS0-VBS7 each must be associated with the same carrier that is used for control signal in virtual network side to visit a carrier wave, this means the business datum that is illustrated by the broken lines only.
From Fig. 6 a-6b, Fig. 7 a-7c, any technical staff in this area understands the carrier wave application that can utilize various combination.For example, carrier wave can also combine with pure traffic data carrier with virtual network configuration again.In this configuration, traffic carrier can be exclusively used in a specific virtual subdistrict, perhaps can be used as the public resource of whole virtual network.
Can carry out the enforcement of VNC function with many different modes.Fig. 8 illustrates a kind of block diagram of possible configuration.Base station 8 is connected to BSC 60.The major part of VNC 20 functions is positioned at the input of base station 8, and preferably, can integrate with the transceiver radio interface 71 of base station 8.As mentioned above, VNC will be transformed to virtual network carrier and virtual network controls signal in intended carriers and the control signaling with the use of BSC communication period.The output of VNC 20 is divided into the output that is used for each intended virtual network carrier.According to the applicable cases of in question carrier wave, each output comprises data service output and control signal output, or includes only data service output, and each output is connected to transceiver unit 72.Usually in codec unit 82, before coding control signal and the data service, in the Error processing unit 80,81 that separates, handle this control signal and data service.Coded signal discharges with spike usually, like this, handles this coded signal in spike processing unit 83.The DL signal is multiplexed on the available channel of this carrier wave in channel multiplexer 84, and modulated in modulator 85.Similarly, the UL business by demodulation, and is decomposed by multichannel in demultiplexer 87 in demodulator 86.
In the present embodiment, suppose it is distributing antenna system, and the carrier wave of all uses all is sent to antenna by a common antenna cable 17.Go to and from the modulation signal of transceiver unit 72 in antenna transmission multiplexer 74 by multiplexed.Antenna transmission multiplexer 74 and BCCH injector 33 are as control signal injector (referring to Fig. 5).Preferably, the control signal that comprises carrier wave with easy extraction or the mode that filters by multiplexed.Multiplex signal sends on antenna cable 17, and reaches signal selector 28 on each antenna 14.Signal selector 28 comprises filter 88 or separative element, filter 88 or separative element are isolated the carrier wave that comprises this control signal and any public services carrier wave (if existence), and the carrier wave that wherein comprises this control signal is intended to be used for the virtual base station that is associated with this specific antenna.These isolated carrier waves are decomposed by multichannel in demultiplexer 89, and are modified to suitable characteristic.Then, the signal of isolated carrier wave is transmitted by antenna 14 as radio frequency electromagnetic.In signal selector 28 and multiplexer 74,89, deposit the corresponding function that is used for UR communication.
Fig. 9 is shown in another embodiment that VNC implements in the base station.Here, for example for handling the function that relevant DL provides conversion carrier wave and control signal with coding and spike.BSC 60 is connected to the transceiver radio interface 71 in the base station 8, and the signal that is intended for different carrier is switched to the transceiver unit 72 of separation.Transceiver unit 72 is set for Error processing, coding and spike in normal way and handles.Yet in this embodiment, the output of spike processing unit 83 is connected to VNC 20, and 20 pairs of carrier waves that are associated with this virtual base station of VNC and data are carried out necessary conversion.The signal that is intended for the different virtual network carriers by multiplexed, is sent on the common antenna cable in multiplexer 74 then.In this embodiment, except filter 88 and demultiplex unit 89, also for signal selector 28 provides channel modulator 84, modulator unit 85, demultiplexer unit 86 and channel demultiplexer 87, these unit all are positioned at dominant base 8.
Many other the enforcements of the present invention also are possible, and the scope that the present invention protected should not be confined to these example embodiment, but are limited by subsidiary Patent right requirement fully.
Basic thought of the present invention---virtual network is separated with master network---provides other possible advantage.Because virtual network base stations is only used in virtual network, so master network can not be known the existence of this virtual network base stations fully.Yet, for being provided, improved position determines, must utilize understanding to the virtual base station position.This means that the position determines that function also must be provided by the server of VNC or any VNC of being connected to, as above Short Description.VNC understands virtual network configuration fully, and is connected to the portable terminal transmission and the corresponding measurement report of their neighbor lists continuously of VNC.Thereby can provide accurate position to determine.
In the situation of the base station that comprises VNC by for example company or official's operation, accurately the location is to be worth protection.Understanding to specific portable terminal Move Mode can be used for planning for example attack of terrorism or is used for the industrial espionage.In this case, operator can select to make accurate location to maintain secrecy for the other parts of communication network.The unique information that provides for external network will be that this portable terminal is present in the base station cell somewhere.Therefore, at the measurement report of portable terminal, promptly its neighbor list is forwarded to before the external network, must be modified.Figure 10 illustrates such neighbor list and revises.Illustrate the neighbor list that in virtual network, is used for inner use in the left side.This tabulation comprises the measurement with corresponding clauses and subclauses of virtual base station signal measurement (by initial " V " table) and ordinary base station signal.VNC is included in the base station (by " A " expression) that is used for external network.VNC revised this tabulation before neighbor list is forwarded to external network.Because first clauses and subclauses are virtual base stations, with the main signal of these clauses and subclauses as whole virtual network.Preserve for example measured value of radio condition quality, but with reference now to " normally " base station " A ".Delete remaining virtual base station entries, and only preserve ordinary base station entries.Master network receives the neighbor list revised, and can use this neighbor list to be used for lower a little the position of accuracy and determine.
If the exact position will be output to grand network, that is, the network of local network outside, then this must be handled and ratified by VNC and/or positioning unit.In a local position is estimated by the system that maintains secrecy, when initiating urgent call, preferably exist and ignore this secret function.Urgent call can be detected by VNC, and then, VNC offers operator with complete positional information.
Situation when portable terminal enters or leave virtual network needs some other devices.In Figure 11 A, building 120 is equipped with the virtual network with 9 virtual subdistrict 121-129, but is counted as a sub-district 140 outside.This building 120 has inlet 130, and it is covered by virtual subdistrict 121.Because the use of virtual network is only paid close attention to by this inlet 130 and is entered, so virtual subdistrict 121 can be used as the inlet virtual subdistrict.So this virtual subdistrict preferably has identical BSIC and identical control carrier frequency with " outside " sub-district 140.
When portable terminal switched to sub-district 140 by the base stations control with VNC, this portable terminal entered in the virtual network.Portable terminal receives the information of relevant virtual subdistrict BSIC and the control carrier frequency that will search for from VNC.This VNC also takes over and switches and position estimation routines.Thereby this virtual base station will appear in the neighbor list.When portable terminal is mobile in building 120, will carry out the switching of other virtual subdistrict by VNC.BSC thinks that still this portable terminal is in sub-district 140.
When portable terminal left this building and becomes too low from the signal of virtual subdistrict 121, at the top of neighbor list, external cell was available once more, and this mobile terminal request switches to one of these sub-districts.VNC is an external cell with these cell identification, and switching controls is sent back to BSC.
Switch to external cell for fear of being arranged in the mobile radio station request that virtual network is different from the sub-district of virtual subdistrict 121, VNC can be with the deletion from measure tabulation of any external cell.Alternatively, can provide a mark for the external cell in the neighbor list, this mark indication does not allow to switch to this sub-district.Another is alternative to be that VNC oneself follows the tracks of and allows which handover operation.Owing to must be handled by VNC from all switchings of virtual subdistrict, therefore except to the mobile radio station that is arranged in virtual subdistrict 121, this VNC can easily refuse switching to the request of external cell.
In Figure 11 B, building 120 has two inlets.Here, inlet virtual subdistrict 121 must appear at two porch.So previously described principle is followed in this operation.Minor defect in this environment is may have difficulties in 130 o'clock at the different inlets of difference.
Illustrate another embodiment in Figure 11 C, it is easily operated a plurality of inlets 130.Here, link to each other with building 120 " outside " sub-district 140 of base station has covered whole construction zone.Control signal and BSIC are available anywhere.Yet when portable terminal entered this sub-district, portable terminal will automatically be transferred virtual subdistrict to by VNC, thereby improved location estimation will be provided.Therefore, " outside " sub-district 140 also will remain on very low service rating, and this has guaranteed to be used for the idle capacity that mobile radio station entered or left building.Therefore, this public control channel will be as the interface between virtual network and the master network.
Externally the conversion meeting of carrier transformation between network and the virtual network and different carrier channel causes some less complicated.Externally be used on the network if be used for single carrier wave and a plurality of traffic channel carrier of control signal, but all carrier waves are used for the control signal of different virtual base station, the quantity of Traffic Channel is lacked in externally net falls in virtual network so.Therefore, must give external network this limitation notification in the available resources total amount.Yet, there is no need to know the accurate configuration of these resources.
VNC makes some information secret possibility that becomes in virtual network.VNC also is suitable for increasing other function.In the zone that is covered by the base station, for example, building can have some subregions here, for this reason, has some rules of using portable terminal.In hospital, portable terminal may influence the necessary Medical Devices that earn a bare living, and therefore, usually bans use of portable terminal in many end regions.Yet, in hospital, have many positions and can allow to use by any way portable terminal.If hospital is covered by virtual network, then VNC can determine the exact position of each portable terminal.If portable terminal is when forbidding portable terminal regional, VNC can send and be notified to this user, perhaps only cuts off this portable terminal.
The another kind application that is suitable for the integrated VNC of advancing can be that inlet is authorized.If portable terminal enters a zone, in this zone, only allow those personnel that have been authorized to carry effective portable terminal, VNC can for example combine with changeover program to this mobile terminal user request authorisation verification.If the user can not provide this authorisation verification, VNC can cut off calling.In addition, if portable terminal is attempted to connect when being positioned at confined area, VNC can ask this authorisation verifications.
Power control is another feature, and wherein, VNC is preferably as adjuster or convertor device work.Order and measurement from portable terminal and BSC are transformed to significant information in the respective cell environment.The details of this actual enforcement will no longer further be discussed.
Management method according to the present invention is primarily aimed at the management in cellular mobile radio system.GSM describes the mobile radio phone standard of using in the exemplary embodiments in present disclosure specification.Yet the present invention also can be applicable to other cellular mobile radio system and their relevant criterion, for example, and based on other radio standard of TDMA (time division multiple access), CDMA (code division multiple access), wideband CDMA (WCDMA) and TDD (time division duplex) technology.
Among the embodiment based on GSM of Miao Shuing, the base station is the radio access station that uses in GSM in the above.Equally, base station controller is the radio access station controller of GSM example.The node that also has these types in other systems, but slightly different title used sometimes.For example, in WCDMA, access point is corresponding with radio access station and radio station access controller respectively with radio network controller.In 3G used, the base station was represented as " Node B " usually.In present disclosure specification, according to employed communication means, " radio access station " is intended to comprise all dissimilar base stations, Node B, access point or the like.
In described embodiment based on GSM, time slot constitutes physical channel.Physical channel is to be assigned to part minimum in single specific user's the radio resource.Thereby carrier frequency can be counted as set of time-slot (or physical channel), and these time slots can be used by certain base station.A more than carrier frequency can also be visited in the base station,, can visit a more than sets of physical channels that is.
In WCDMA, physical channel is characterised in that special code, typically the combination of scrambler and channel code.Each access point can use the physical channel with specific scramble codes usually, and wherein, this specific scramble codes is irrelevant with employed channel code in principle.Naturally definition can be characterised in that specific scramble codes by the sets of physical channels that the particular radio access station uses in WCDMA.
Also have minimum allocatable resource units in other cellular communication system, this minimum allocatable resource units is called physical channel in present disclosure specification.Each radio access station also has certain sets of physical channels usually, and this sets of physical channels is predefined during plot planning, perhaps is not.Therefore, can be applicable to sets of physical channels and this physical channel itself usually about the principle of carrier wave and time slot in the above-described embodiments.
Illustrate key step among Figure 12 according to an embodiment of the inventive method.This program starts from step 200.In step 210, will be provided to first antenna with the control signal that first virtual base station is associated.In step 212, will be provided to second antenna with the control signal that second virtual base station is associated.In step 214, in the general base station of two virtual base stations of control, carry out the switching between first virtual base station and second virtual base station.This EP (end of program) is in step 299.
Above-described embodiment will be understood that several illustrative example of the present invention.It will be understood to those of skill in the art that can be to the various modifications of these embodiment, combination and change under the situation that does not depart from the scope of the invention.Especially, under the possible technically situation, the solution of different piece can be incorporated in other configuration in different embodiment.Yet scope of the present invention is limited by subsidiary claim.
Claims (37)
1. a radio access station (8) can insert m sets of physical channels (c0-c4), and m is the integer greater than 1;
And have the antenna output that is used to be connected to n antenna (14), n is the integer greater than 1,
It is characterized in that:
Virtual network controls device (20) comprises channel translator (30), will be used for the channel of communicating by letter with radio access station controller (60) and the physical channel of the sets of physical channels (c0-c4) used by a described n antenna (14) connection that is relative to each other;
Virtual network controls device (20) is configured to control the handover operation between second sets of physical channels of first sets of physical channels of this m sets of physical channels (c0-c4) and this m sets of physical channels (c0-c4).
2. according to the radio access station of claim 1, it is characterized in that:
Virtual network controls device (20) is provided in provides the control signal that is associated with the first virtual radio access station on first sets of physical channels, be intended to be used for first antenna of a described n antenna (14); With
Virtual network controls device (20) is provided in the control signal that is associated with the second virtual radio access station is provided on second sets of physical channels, be intended to be used for second antenna of a described n antenna (14), wherein, this second virtual radio access station is different from the first virtual radio access station.
3. according to the radio access station of claim 1 or 2, it is characterized in that: virtual network controls device (20) is configured to stop the information that is associated with the virtual radio access station that separates, and only the information that is associated with the radio access station of handle is made the as a whole radio access station controller (60) that is sent to, the portable terminal that is connected (6) is considered as separating the antenna of sub-district (7) with this n antenna (14) thus, and radio access station controller (60) is considered as this n antenna (14) on the antenna of a single sub-district (4).
4. according to any one radio access station in the claim 1 to 3, it is characterized in that: this virtual network controls device (20) further comprises and being used for based on neighbor list (100; 110) carry out the device (38) of location estimation.
5. according to the radio access station of claim 4, it is characterized in that: this virtual network controls device (20) further comprises the neighbor list (100 that is used to revise the portable terminal (6) that is connected; 110) for the device that is forwarded to radio access station controller (60).
6. according to any one radio access station among the claim 1-5, it is characterized in that: antenna output is the output of common antenna cable (17).
7. according to any one radio access station among the claim 1-6, it is characterized in that: virtual network controls device (20) comprises broadcasting control signal injector (26,33).
8. according to any one radio access station among the claim 1-5, it is characterized in that: at least one in the described n antenna (14) connects by the antenna cable that separates.
9. according to any one radio access station among the claim 1-8, it is characterized in that: the radio access station is selected from following tabulation:
The base station;
Access point; With
Node B.
10. according to any one radio access station among the claim 1-9, it is characterized in that: this radio access station is operated according to GSM, and sets of physical channels is frequency carrier (c0-c4) thus, and physical channel is a time slot.
11. according to any one radio access station among the claim 1-9, it is characterized in that: this radio access station is according to CDMA or WCDMA operation, and the feature of sets of physical channels is a scrambler thus, and the feature of physical channel is a channel code.
12., it is characterized in that: the device that is used for limiting mobile terminal use in the zone that this radio access station is covered according to any one radio access station among the claim 1-11.
13. the radio access station according to claim 12 is characterized in that: the device that is used to limit use comprises notifying device, when portable terminal enters restriction when using the zone, sends the notification to portable terminal.
14. the radio access station according to claim 12 or 13 is characterized in that: the device that is used to limit use comprises shearing device, is cut to be positioned at the communications of Mobile Terminals that the zone is used in restriction.
15. according to claim 12,13 or 14 radio access station, it is characterized in that: the device that is used to limit use comprises authorization device, uses the zone or enters restriction and use regional mobile terminal request authorisation verifications to being positioned at restriction.
16. radio access network comprises:
Radio access station controller (60);
Radio access station (8) can insert m sets of physical channels (c0-c4), and m is the integer greater than 1; With
Be connected to n the antenna (14) of radio access station (8), n is the integer greater than 1,
It is characterized in that:
Radio access station (8) comprises virtual network controls device (20), wherein, this virtual network controls device (20) comprises channel translator (30), will be used for the channel of communicating by letter with radio access station controller (60) and the physical channel of the sets of physical channels (c0-c4) used by a described n antenna (14) connection that is relative to each other;
Virtual network controls device (20) is configured to control the handover operation between second sets of physical channels of first sets of physical channels of this m sets of physical channels (c0-c4) and this m sets of physical channels (c0-c4).
17. the radio access network according to claim 16 is characterized in that:
Virtual network controls device (20) is provided in provides the control signal that is associated with the first virtual radio access station on first sets of physical channels, be intended to be used for first antenna of a described n antenna (14); With
Virtual network controls device (20) is provided in the control signal that is associated with the second virtual radio access station is provided on second sets of physical channels, be intended to be used for second antenna of a described n antenna (14), wherein, this second virtual radio access station is different from the first virtual radio access station.
18. radio access network according to claim 16 or 17, it is characterized in that: virtual network controls device (20) is configured to stop the information that is associated with the virtual radio access station that separates, and only the information that is associated with the radio access station of handle is made the as a whole radio access station controller (60) that is sent to, the portable terminal that is connected (6) is considered as separating the antenna of sub-district (7) with this n antenna (14) thus, and radio access station controller (60) is considered as this n antenna (14) on the antenna of a single sub-district (4).
19. according to any one radio access network among the claim 16-18, it is characterized in that: virtual network controls device (20) further comprises and being used for based on neighbor list (100; 110) carry out the device of location estimation.
20. the radio access network according to claim 19 is characterized in that: this virtual network controls device (20) further comprises the neighbor list (100 that is used to revise the portable terminal (60) that is connected; 110) for the device that is forwarded to radio access station controller (60).
21. according to any one radio access network among the claim 16-20, it is characterized in that: n antenna (14) connects by common antenna cable (17).
22. according to any one radio access network among the claim 16-21, it is characterized in that: the signal selector (28) in n antenna (14) on each, and be characterised in that virtual network controls device (20) comprises broadcasting control signal injector (26,33).
23. according to any one radio access network among the claim 16-20, it is characterized in that: at least one in the described n antenna (14) connects by the antenna cable that separates.
24. according to any one radio access network among the claim 16-23, it is characterized in that: the radio access station is selected from following tabulation:
The base station;
Access point; With
Node B.
25. according to any one radio access network among the claim 16-23, it is characterized in that: radio access station controller is selected from following tabulation:
Base station controller; With
Radio network controller.
26. according to any one radio access network among the claim 16-25, it is characterized in that: this radio access network is operated according to GSM, sets of physical channels is frequency carrier (c0-c4) thus, and physical channel is a time slot.
27. according to any one radio access network among the claim 16-25, it is characterized in that: this radio access station is according to CDMA or WCDMA operation, and the feature of sets of physical channels is a scrambler thus, and the feature of physical channel is a channel code.
28. a method that is used for the management of mobile telecommunication net is characterised in that step:
In radio access station (8), carry out the switching of communicating by letter between the sets of physical channels (c0-c4) of two antennas (14) of controlling by this radio access station (8).
29. the method according to claim 28 is characterized in that:, carry out pellucidly and switch with respect to the radio access station controller (60) of control radio access station (8).
30. the method according to claim 28 or 29 is characterized in that further step:
The control signal that is associated with the first virtual radio access station is provided on first sets of physical channels, is intended to be used for first antenna; With
The control signal that is associated with the second virtual radio access station is provided on second sets of physical channels, is intended to be used for second antenna, wherein, this second virtual radio access station is different from the first virtual radio access station.
31., it is characterized in that further step according to any one method among the claim 28-30:
Adaptively the physical channel of virtual radio access station is associated with the communication channel of using between radio access station (8) and radio access station controller (60).
32., it is characterized in that further step according to any one method among the claim 28-31:
In radio access station (8), estimation is connected to the position of the portable terminal (6) of virtual radio access station.
33. the method according to claim 32 is characterized in that: the step of estimating based on the content of neighbor list.
34. the method according to claim 32 or 33 is characterised in that further step:
The use of limiting mobile terminal in the zone that the radio access station covers.
35. the method according to claim 34 is characterized in that: the step that restriction is used comprises the step of notifying this portable terminal when portable terminal enters restriction use zone.
36. the method according to claim 34 or 35 is characterized in that: the step that restriction is used comprises the step that is cut to the communications of Mobile Terminals that is arranged in restriction use zone.
37. according to claim 34,35 or 36 method, it is characterized in that: the step that restriction is used comprises to being positioned at restriction to be used the zone or enters the step that regional mobile terminal request authorisation verifications is used in restriction.
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| SE0302804A SE0302804D0 (en) | 2003-10-20 | 2003-10-20 | Positioning method using a local virtual network |
| SE0400388-5 | 2004-02-17 | ||
| SE0400388A SE527931C2 (en) | 2003-10-20 | 2004-02-17 | Network of virtual cells |
| SE04003885 | 2004-02-17 | ||
| PCT/SE2004/001353 WO2005039215A1 (en) | 2003-10-20 | 2004-09-23 | Virtual cellular radio network |
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| CN1871867A true CN1871867A (en) | 2006-11-29 |
| CN1871867B CN1871867B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2004800309683A Expired - Fee Related CN1871867B (en) | 2003-10-20 | 2004-09-23 | Virtual cellular radio network |
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| SE (1) | SE0302804D0 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983536A (en) * | 2008-04-07 | 2011-03-02 | 爱立信电话股份有限公司 | A method of and a radio transmission system and radio access equipment for cellular wireless radio transmission |
| CN103118332A (en) * | 2013-01-23 | 2013-05-22 | 北京拓明科技有限公司 | Method for positioning floor where indoor user locates |
| CN105634713A (en) * | 2014-10-28 | 2016-06-01 | 微思泰（北京）信息技术有限公司 | Full-duplex wireless communication method based on virtual base station |
| WO2017036358A1 (en) * | 2015-08-28 | 2017-03-09 | 中兴通讯股份有限公司 | Switching method, base station and server |
| CN107182096A (en) * | 2007-03-16 | 2017-09-19 | 高通股份有限公司 | Method and apparatus for the switching between access system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE513988C2 (en) * | 1998-03-30 | 2000-12-04 | Ericsson Telefon Ab L M | Method and apparatus for generating interference over the air interface in a cellular network |
| EP1190587A1 (en) * | 1999-06-28 | 2002-03-27 | Siemens Aktiengesellschaft | Method for operating a mobile terminal and a corresponding mobile radio system |
| US6490451B1 (en) * | 1999-12-17 | 2002-12-03 | Nortel Networks Limited | System and method for providing packet-switched telephony |
-
2003
- 2003-10-20 SE SE0302804A patent/SE0302804D0/en unknown
-
2004
- 2004-09-23 CN CN2004800309683A patent/CN1871867B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107182096A (en) * | 2007-03-16 | 2017-09-19 | 高通股份有限公司 | Method and apparatus for the switching between access system |
| CN101983536A (en) * | 2008-04-07 | 2011-03-02 | 爱立信电话股份有限公司 | A method of and a radio transmission system and radio access equipment for cellular wireless radio transmission |
| CN101983536B (en) * | 2008-04-07 | 2016-11-02 | 爱立信电话股份有限公司 | Method and radio transmission system and radio access device for cellular wireless radio transmission |
| CN103118332A (en) * | 2013-01-23 | 2013-05-22 | 北京拓明科技有限公司 | Method for positioning floor where indoor user locates |
| CN103118332B (en) * | 2013-01-23 | 2015-09-30 | 北京拓明科技有限公司 | A kind of localization method to indoor user place floor |
| CN105634713A (en) * | 2014-10-28 | 2016-06-01 | 微思泰（北京）信息技术有限公司 | Full-duplex wireless communication method based on virtual base station |
| CN105634713B (en) * | 2014-10-28 | 2018-09-18 | 北京和宽科技有限公司 | A kind of Full-duplex wireless communications method based on virtual base station |
| WO2017036358A1 (en) * | 2015-08-28 | 2017-03-09 | 中兴通讯股份有限公司 | Switching method, base station and server |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1871867B (en) | 2012-07-04 |
| SE0302804D0 (en) | 2003-10-20 |
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