CN101583188A - Obtaining time synchronization and position information by utilizing millimicro micro cells - Google Patents
Obtaining time synchronization and position information by utilizing millimicro micro cells Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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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
The present invention provides a method of obtaining time synchronization and position information: activation requests are transmitted through wired connections from an access point base station to a service provider, wherein, the service provider provides a wireless communication in a macro region and the access point base station provides a wireless communication in the home region; a first step is executed to obtain a time synchronization; a second step is then executed to obtain the position of the access point base station; and the obtained station is transmitted to the service provider.
Description
Technical field
The present invention relates to the field of cellular network, and more specifically, relate to the automatic configuration (provisioning) of femtocell cell base station.
Background technology
In recent years, mobile device, particularly cellular use increases sharply.This surge concentrates on cellular reception, the especially increase of cellular phone service in family or main residence.In addition, the typical user of mobile device can use or the subscription data business in the family.Therefore, femtocell sub-district (femtocell) more generally is called access point base station, begun with in the family.The femtocell sub-district provides the cellular service to the mobile device that uses the user's data business.Therefore, these femtocell sub-districts are often using the place of mobile device that quality services are provided, and using data plan service (as, DSL, optical fiber, wired, WiMAX etc.) usually, it can not need the macrocell of the vicinity of cell phone service provider.But the femtocell sub-district generally needs for example manually to be provided with so that work efficiently by the technical staff.Therefore, the improvement of the installation of femtocell sub-district will be a desirable.
Summary of the invention
Public use femtocell sub-district acquisition time reaches a plurality of embodiment of the system and method for positional information synchronously.In one embodiment, a kind of acquisition time method synchronous and positional information comprises: by the activation request of wired connection transmission from the access point base station to service provider, wherein the service provider provides radio communication in grand zone, and wherein access point base station provides radio communication in the local zone; It is synchronous with acquisition time to carry out first step; Carry out second step to obtain the position of access point base station; And transmit the position obtained to the service provider.
In another embodiment, a kind of femtocell sub-district comprises at least one radio port, is used to provide the two-way communication with one or more incoming ends, and wherein said at least one radio port can be used in radio communication is provided in the local zone.This femtocell sub-district also comprises first port, and being used for provides two-way communication with the service provider by IP network.This femtocell sub-district also comprises processor that is couple to described at least one radio port and first port and the storage medium that is couple to this processor.This storage medium can comprise program command, and this program command can be carried out in order to transmit the request of activation by wired connection to the service provider.This program command can also be carried out in order to carry out first step with acquisition time synchronously and carry out second step to obtain the position of access point base station.This program command further can be carried out in order to transmit the position that is obtained to the service provider.
The present invention also provides a kind of acquisition time synchronously and the method for positional information, comprise by the activation request of wired connection reception from the access point base station to service provider, wherein the service provider provides radio communication in grand zone, and access point base station provides radio communication in the local zone; And the position that receives access point base station, wherein access point base station is carried out first step with acquisition time synchronously and carry out second step to obtain the position of described reception.
Description of drawings
When consider in conjunction with the following drawings preferred embodiment below specific descriptions the time, can obtain the present invention is better understood, wherein:
Fig. 1 is the example system that comprises access point base station according to an embodiment;
Fig. 2 is the exemplary general block diagram according to the access point base station of an embodiment;
Fig. 3 is the exemplary block diagram according to the access point base station of an embodiment;
Fig. 4 is the flow chart according to the exemplary method of the automatic configuring access point base station of an embodiment;
Fig. 5 is that explanation is according to the macro base station of an embodiment and the Zone switched curve chart of access point base station;
Fig. 6 is the figure of explanation according to the coverage of the macro base station of an embodiment and two access point base station;
Fig. 7 is the flow chart of the exemplary method of and positional information synchronous according to the acquisition time of an embodiment; And
Fig. 8 is the flow chart of the exemplary method of and positional information synchronous according to the acquisition time of an embodiment.
Though the present invention allows various modifications and alternative form, as example its specific embodiment is shown in the accompanying drawing and also here describes in detail.But be to be understood that, accompanying drawing and detailed description thereof do not plan the present invention is limited to particular forms disclosed, and opposite, be intended to contain all modifications, equivalent and the alternative that drop within the spirit and scope of the present invention that limit by appended claims.
Embodiment
Term:
Any in storage medium-polytype memory device or the storage facilities.Term " storage medium,, be intended to comprise: medium is installed, for example, CD-ROM, floppy disk or tape unit; Computer system memory or random access memory are such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM etc.; Or nonvolatile memory, such as the magnetizing mediums or the light storage of for example hard disk drive.Storage medium can also comprise memory or its combination of other types.In addition, storage medium can be arranged in first computer of executive program, or is arranged in the second different computer that is connected to first computer via the network such as the internet.In one situation of back, the program command that second computer can be provided for carrying out to first computer.Term " storage medium " can comprise two or more storage mediums that are positioned at diverse location, for example is arranged in the different computer that connects by network.
The multiple hardware device that comprises via a plurality of programmable function blocks of interconnected connection able to programme in programmable hardware unit-comprise.Example comprises FPGA (field programmable gate array), PLD (programmable logic device), FPOA (field-programmable target array) and CPLD (complicated PLD).The scope of programmable functions module from fine granular (combinational logic or tracing table) to coarse particles (ALU or processor core).The programmable hardware unit also can be called as " reconfigurable logic ".
Program-term " program " is intended to have the four corner of its ordinary meaning.Term " program " comprising: the hardware configuration program that the software program or 2 that 1) can be stored in the memory and can be carried out by processor) can be used in the configurating programmable hardware cell.
Software program-term " software program " is intended to have the four corner of its ordinary meaning, and comprises program command, code, script and/or data or its combination of any kind, and it can be stored in the storage medium and by processor and carry out.Exemplary software program comprises: with such as text based programming language written program such as C, C++, Pascal, Fortran, Cobol, Java, assembler languages; Graphic package (with the graphical programming language written program); Assembly language program(me); Be compiled as the program of machine language; Script; But and the executive software of other types.Software program can comprise two or more software programs of interoperability in some way.
The program of train table (netlist) of hardware configuration program-for example or bit file (bit file), it can be used for programming or configurating programmable hardware cell.
Any in computer system-polytype calculating or the treatment system comprises the combination of personal computer system (PC), large computer system, work station, the network equipment, internet equipment, PDA(Personal Digital Assistant), television system, computing system or miscellaneous equipment or equipment.Usually, term " computer system " broadly can be defined as to contain and have at least one and carry out from any equipment of the processor of the instruction of storage medium or the combination of equipment.
The exemplary block diagram of Fig. 1 and Fig. 2-communication system
Fig. 1 explanation comprises the example system of access point base station such as femtocell sub-district for example.Term " access point base station " is intended to comprise typically definition as known to the skilled person such as femtocell sub-district, Home eNodeB, individual access point (PAP) and individual 2G-4G (or nG) base station.In certain embodiments, access point base station can comprise the function and the following specifically described other function of mobile radio station transmitter/receiver (transceiver).Provide below automatic configuration (that is, be provided with) access point base station (as, by suitable operating parameter is provided) the various embodiment of method.
As shown, Fig. 1 explanation can comprise the family of one or more mobile devices 110, access point base station 120 and broadband device 130.As shown in Figure 2, access point base station 120 can comprise the base station circuitry 200 that can be couple to mobile radio station transceiver circuit 250.Base station circuitry 200 and/or mobile radio station transceiver circuit 250 can comprise or be couple to processor and memory to realize their function.In one embodiment, base station circuitry and mobile radio station transceiver circuit all can have separate processor and memory; Yet these assemblies also can shared processing device and memory.
As shown in Fig. 1 and Fig. 2, base station circuitry 200 and mobile radio station transceiver circuit 250 can be included in the same casing of access point base station 120.Casing can be plastics or metal (as, aluminium or other metal) and can adopt cartridge design.In one embodiment, casing can comprise one or more lamps or light-emitting diode (LED), the movable or operation of each assembly of its indication access point base station 120 (for example, the operation of base station circuitry 200 and/or mobile radio station transceiver circuit 250 etc.).
Casing can comprise the power supply that is used for providing to the assembly of access point base station 120 electric power.Casing can also comprise one or more ports, is used to be couple to miscellaneous equipment or communication equipment.For example, in one embodiment, casing can comprise USB (USB) port that is used for attached peripheral device (for example, printer, personal music player, personal digital assistant, cell phone, external hard drive driver, testing equipment, media controller etc.) or such as port of other type of live wire etc.In addition, or selectively, described one or more ports can comprise ethernet port (for example, being used to be couple to router or communication equipment 130 etc.), fiber port, cable port etc.
Access point base station 120 can work with receive radio communications (for example, radio frequency (RF) communication) from one or more mobile devices 110 and provide with corresponding mobile operator of the provider of mobile device 110 or the corresponding signal of cellular service provider or communicate by letter.More specifically, access point base station 120 can be worked to use wideband Communication apparatus 130 to provide communication as mobile device 110 by IP wide area network 150 (for example, the internet is via user's ISP (ISP)).Therefore, broadband device 130 can communicate by internet and cellular service provider 160.
In addition, IP wide area network 150 can use multiple technologies privately owned or special-purpose by the user, for example, and leased lines, frame relay, Digital Subscriber Line (DSL) or dial-up service.If IP Wide Area Network 150 is supported, then can or can use the IP tunnelling with the IP communication encryption.Cellular service provider 160 can also be couple to macro base station 170, sometimes be referred to as cell phone control tower or macrocellular station, disabled or when not working, macro base station 170 can be worked to provide service to mobile device 110 when the scope that exceeds access point base station 120 and/or access point base station 120.Therefore, access point base station 120 can provide two-way communication for mobile device by the IP network such as the internet.In other words, the cell phone that communicates with access point base station that user at home can use them, wherein user's voice communication can send to or be received from cellular service provider by IP network.
Mobile radio station transceiver circuit 250 can be worked and be communicated to use such as the radio honeycomb communication of RF and mobile device 110 and honeycomb control tower 170.Yet, should be noted that in certain embodiments mobile radio station transceiver circuit 250 can directly not communicated by letter with mobile device 110; In another embodiment, it can receive the signal from mobile device 110 by the other assembly such as base station 200.Mobile radio station transceiver circuit 250 can be used for the report of loopback (loopback) test, environmental factor (environmentalfactors), and provides redundant information when the IP network fault, thereby the honeycomb that improves in the family receives.Therefore, in certain embodiments, mobile radio station transceiver circuit 250 can be used to monitor the environmental factor of access point base station 120, for example, contiguous macrocellular station, contiguous femtocell sub-district, the radio communication amount in the family etc., and can for example transmit the configuration that this information is used for access point base station 120 via macrocellular station or IP network to the service provider according to expectation.This information can be crucial during access point base station 120 initial (for example, automatic) is provided with.Correspondingly, between the installation period of access point base station 120, macro base station 170 and/or service provider 160 can communicate so that for example automatically carry out setting operation via wide area network 150 and access point base station 120.Mobile radio station transceiver circuit 250 for example can also allow in response to from the signal of macro base station 170 and begin the test (as, loopback test) of access point base station 120.
Mobile device (also being referred to as to access terminal) 110 can comprise the equipment of any kind that can use in the cellular network such as RF communication.Mobile device 110 can comprise cell phone (comprising smart phone), have the PDA(Personal Digital Assistant) of mobile communication function, the kneetop computer with mobile communication assembly or computer system and/or any equipment that can operate to communicate with cellular network.Mobile device can use various agreement, for example CDMA 2000 (1xRTT and EV-DO), UMB, UMTS, LTE, WiMax or other.Therefore, access point base station can be supported any agreement of being used by mobile device 110 or its subclass at least, for example need not modification standard or agreement to support existing mobile device.
Therefore, access point base station 120 can use broadband device 130 (wired ground or wirelessly) to be provided to the access of cellular network via wide area network 150 (for example, the internet), and can comprise mobile radio station transceiver 250.
The exemplary block diagram of Fig. 3 access point base station
Fig. 3 illustrates the exemplary block diagram of access point base station 120.As shown, access point base station 120 can comprise the port 310 (or cut-in method) that is used to arrive the wide area network 150 that may be provided by wideband Communication apparatus 130.As mentioned above, port 310 can provide the wired or wireless communication with wideband Communication apparatus 130.In certain embodiments, port 310 can be implemented as interface or the interference networks that are couple to wideband Communication apparatus 130, base station circuitry 200 and/or mobile radio station transceiver circuit 250.Mobile radio station base band 324 and base station baseband 334 can be couple to port 310.Each base band component can be connected to analog to digital and digital-analog convertor (being respectively 322 and 332) successively, and the latter can be connected to transceiver separately, as mobile radio station R/F 320 and base station R/F 330.Can couple various these assemblies and be used for loopback test, for example, mobile radio station R/F 320 and base station R/F 330, two digital/ analog converters 322 and 332 and/or two base band components 324 and 334 equiprobable connections.Notice that this block diagram only is exemplary, and can or connect various in a different manner according to expectation replacement, modification.Be also noted that and in access point base station 120, can have other assembly not shown in Figure 3.
The automatic configuration of Fig. 4 access point base station
Fig. 4 illustrates the exemplary method of automatic configuring access point base station.Method shown in Figure 4 can with remove any computer system shown in the top figure or equipment etc. and be used in combination.In various embodiments, shown certain methods step can side by side carry out, to carry out or to be omitted with shown different order.Also can carry out other method step according to expectation.As shown, this method can followingly be operated.In the following description, quoting of " access point base station " refers to access point base station 120.
In 402, can for example access point base station be installed at home by the user.Yet, can install by service provider technical staff or other entity according to expectation.The installation of access point base station can comprise to access point base station to be provided power supply and uses wired or wireless means that access point base station is couple to wideband Communication apparatus.In certain embodiments, can only require the user power supply to be provided and access point base station is couple to broadband device to access point base station.In a further embodiment, can further require to connect the wireless or network settings that setting for example is provided with access point base station.In addition, in certain embodiments, can be by access point base station being moved from old position and access point base station being installed in new position.In this example, if from preceding installation, receiving such information. for example in 406, obtain identity information, then can not carry out one or more steps that describe below.
Access point base station can be installed in the grand zone of macrocell base stations or be close with it, and macrocell base stations provides radio communication for the service provider in grand zone.Therefore, access point base station can be for the service provider provides radio communication in the local zone, and the local zone can or overlap in the grand zone that is provided by macro base station.Fig. 5 illustrates and the corresponding curve chart of this situation.As shown, access point base station overlay area (corresponding to access point base station described herein) is within macro base station coverage area.The place that indicated zone explanation wherein can for example based on signal intensity ratio the switching (handoff) between access point base station and the macro base station take place.Provide further describing of switch step below.
Fig. 6 also illustrate in grand regional 600 to accessing terminal within grand zone (such as, for example access terminal 650) macro base station 602 of service is provided.As shown, two access point base station 610 and 615 can provide service in local zone 612 and 617.More specifically, access point base station (ap bs) 610 can 652 provide service for accessing terminal.As indicated in addition, can exist between macro base station 602 and the access point base station 615 access terminal grand-access point of 654 oppositely and forward link disturb and reverse and forward link interference between 656 the access point of accessing terminal between access point base station 610 and 615.Can alleviate or tackle these interference according to the multiple power, switching and the lag parameter that are described in more detail below.
In 404, access point base station can send message or request from the automatic configuring access point of wireless service provider base station.This message (and can be other message that describes below) can be defined as one group of new classification in SNMP (Simple Network Management Protocol), CORBA (common object request intermediary framework) and XML (extend markup language) model, and can be by managing such as OAM NMPs such as (Operations, Administration and Maintenances).In certain embodiments, access point base station can send message by the IP network that is for example provided by wideband Communication apparatus.In one embodiment, if the current network that do not provide of wideband Communication apparatus connects, then can for example to use contiguous macrocell base stations maybe may be by the additional access points base station to access point base station, and the wireless network by the service provider sends message.
In 406, access point base station can receive the identity information from the service provider.Identity information can be discerned the access point base station in service provider's the network uniquely, and can be used for the request between service provider and the access point base station.
In 408, access point base station can be for example may comprise that the one or more message that activate request message (ARM) send the first information to the service provider.The first information can mainly provide by the IP network that is for example provided by wideband Communication apparatus.Yet, with top description similarly, for example when IP network is unavailable, can provide the first information via service provider's macro base station.The first information can comprise identity information and/or describe a plurality of parameters of the various aspects of access point base station.For example, described a plurality of parameter can be indicated and access point base station location information related, environmental information, ability information and/or out of Memory.
More specifically, the first information can comprise the position of access point base station, for example according to latitude and longitude etc.Positional information can for example use standard network assist location process to determine by service provider and/or access point base station.In certain embodiments, access point base station can communicate to determine its position by the macro base station (or base station of a plurality of vicinities) with vicinity, for example determines by offset information and the position of determining neighbor base station.In one embodiment, gps receiver can be used to provide positional information (for example, being couple to or being contained in the GPS of access point base station).
As above indicated, the first information can also comprise ability information, such as the RAT that is supported (wireless access technology) technology, maximum number of user amount and data rate, sub-district coverage property (for example, in order to allow maximum power division) etc.Described ability information can comprise the propagation characteristic of access point base station environment of living in; But this information can similarly or instead provide in the environmental information parameter.Can use the mobile radio station transceiver of access point base station to determine one or more partial informations in the first information, for example, environmental characteristics, positional information, offset information etc.
In certain embodiments, the first information can comprise the preferred terminal tabulation.The preferred terminal tabulation can be used to determine to access terminal whether can use access point base station or be used to assign access terminal use the priority of access point base station.In certain embodiments, the user can provide the input user interface of access point base station (for example, to) to be used to specify accessing terminal of preferred terminal tabulation.In one embodiment, the user for example can or use their accessing terminal to input password so that use (or being able to preferential use) access point base station as input equipment extraly.In certain embodiments, the owner of access point base station or manager can define the tabulation in access terminal between priority (for example, use layering seniority among brothers and sisters, clearly ordering or other method), with definition access point base station these Resources allocation that access terminal in tabulation how.Yet, should be noted that access point base station can not provide the preferred terminal tabulation during the configuration of access point base station.For example, can upgrade by any time of access point base station after configuration or provide preferred terminal to tabulate according to expectation.
Similarly, the first information can comprise the access strategy of access strategy or expectation.For example, be used for to provide the input of access strategy of the expectation of access point base station.In certain embodiments, access strategy can have following one or more options: (for example open, all access terminal and can insert access point base station), limited (for example, all that access terminal in the tabulation access terminal and all are allowed to unrestrictedly insert, and other access with restriction that accesses terminal maybe can not insert) and/or privately owned (for example, only having accessing terminal in the tabulation of accessing terminal to be allowed to use access point base station).With similarly top, this information can provide or not provide during disposing, and can provide or change according to being desirably in any time point afterwards.Yet in certain embodiments, the user may not control the access strategy of access point base station; In one embodiment, the service provider can finally assign this strategy.Therefore, can in the first information, provide various types of information to the service provider.
In 410, access point base station can receive second information (for example, passing through IP network) from the service provider, and second information comprises information and/or one or more operating parameter.In 410, access point base station can receive second information (comprising operating parameter) and this operating parameter is stored in suitable memory location in the base station, so that these parameters can be by software access of carrying out on the base station and use.Therefore, the reception of operating parameter can automatically be disposed with storage or configuring access point base station and without any need for direct or manual user input (be different from is connected the base station arrive power supply or broadband connection).
Can be by the service provider based on the first information that provides by access point base station, as, metrical information, positional information/or out of Memory determine second information.Operating parameter can comprise and is used to handle the handoff parameter that accesses terminal between access point base station and the macrocell base stations and switch.In one embodiment, second information can comprise the frequency of access point base station or channel distribution, network SID and/or NID, with and/or the identification of access point base station, except other.Second information can comprise PN skew (at the CDMA200 agreement) and/or sub-district scrambling code (at UMTS).PN skew and/or sub-district scrambling code can also can be used to manage the interference of access point base station to ambient network based on the position of access point base station.
Second information can comprise neighbor list, and it can comprise the contiguous macro base station and/or the tabulation of other access point base station.As above indicated, second information can comprise PN skew (for example, long and/or short PN skew) or at the scrambling code of UMTS.These can help the interference management of access point base station.In certain embodiments, can be when each neighbor list changes and/or with various periodicity time interval renewal neighbor list.Second information can comprise maximum (transmission) power parameter, and it can be used to control the interference of access point base station to ambient network (for example, the macro base station that can indicate or other access point base station) in neighbor list.Can determine the maximum power parameter based on the expectation overlay area of access point base station and the service quality of expectation (family that for example, is used for the user).Can also determine power parameter based on the signal measurement and/or the other factors of the neighbor base station (macro base station or other base station) of family's propagation model, access point base station.Extra parameter can comprise overhead channel power distribution (PICH that for example, is used for 1xRTT) etc.
Second information may further include the access Policy model, and it is as implied above can to allow the opening to the access point base station resource, limited or privately owned access.In addition, second information can comprise preferred terminal tabulation, and it is same as implied above can be used to manage the priority of service that accesses terminal.For example, in privately owned pattern, access point base station can only be limited in the tabulation those and accesses terminal inserting, and for semi-open strategy, can give the listed priority of service that accesses terminal.Can be based on the position of possessory service agreement, access point base station, near other clients' of the position of access point base station subscription, provide the access strategy of (for example, providing) and/or preferred terminal tabulation, neighbor list and/or out of Memory to determine that access strategy and/or preferred terminal tabulate by access point base station by the user.
Second information can comprise further and switch relevant switching skew or parameter that it can indicate macro base station to arrive the falling-threshold value of access point base station and/or the falling-threshold value that access point base station arrives macro base station.For example, second information can provide switching (HO) threshold value and lag information, for example in order to promote to switch and no matter the access point base station within grand overlay area.
Switch (HO) threshold value and can comprise handoff parameter, the falling-threshold value " F2MTdrop " that arrives macro base station to the falling-threshold value " M2FTdrop " and the access point base station of access point base station (or femtocell) such as macro base station etc.The M2FTdrop parameter can specify when the access point terminal just from grand zone (service that provides by macro base station) when moving to the local zone in order to determine when the signal intensity ratio of the switching of execution from the macro base station to the access point base station.On the contrary, the F2MTdrop parameter can specify when just access terminal from the local zone (service that provides by access point base station) when moving to grand zone in order to determine when the signal intensity ratio of the switching of execution from the access point base station to the macro base station.
Lag information can comprise one or more parameters, and in its indication macro base station or access point base station which the most proximad accesses terminal the history of service is provided.In one embodiment, the M2FTdrop parameter just (as, be unit with dB) value provides the hysteresis during grand-femtocell HO, and the negative value of M2FTdrop parameter provides the hysteresis during femtocell-Hong HO.This hysteresis can avoid the frequency between grand service and femtocell service to switch (ping-pong phenomenon).
In one embodiment, parameter can be switched the deadline or relate to the threshold value of switching the deadline relevant with the best.Handoff parameter can help to/from the seamless switching of other base station, help to reduce interference to remaining users and/or ambient network, and/or improve the capacity and the overall quality of service of system by the quantity of the Code Channel that takes in sail.These operating parameter/information (and may be other parameter) can be semi-static, and all are effective till sending next information from the service provider and/or up to position, environment and/or the user of access point base station is provided with etc. other variation being arranged.Be further provided with further describing of switching between access point base station and the adjacent base station in the flow chart below.
Second information may further include extra parameter, such as the access point base station time (can send by network when the loss of link of access point base station and adjacent network) more synchronously, Channel Assignment (CAM message, its interference mitigation that can be used for auxiliary access point base station is managed).In certain embodiments, can use the overlay area propagation model to determine second information (and more specifically, operating parameter).For example, can carry out or this in the middle of determining of definite information and operating parameter many determined by one or more servers of service provider.
The overlay area propagation model can comprise a series of typical home/office layouts, and described layout comprises such as following parameters: type-independence/additional/self-contained flat; Room area and quantity and floor; Structural type-concrete, wood, cardboard etc.These representative configurations can be included in the install software.Different steps and parameter (area, structural type etc.) can for example be imported by the user when the femtocell sub-district is installed, perhaps be arranged in database, or in database, detect, and then in message (all message of ARM as described herein), send to the service provider.When receiving this message, described information can be mapped as the propagation model safeguarded by the service provider in order to obtain for example AP maximum transmit power.The physical location of AT can be contained by the scope of M2FTdrop and F2MTdrop parameter in variation between the typical and actual residence layout and the residence.
In 412, access point base station can be come work based on second information (but for example one or more operating parameters of second information).Carrying out work according to parameter can provide minimizing by access point base station, for example, the interference that in the work of contiguous macrocell or femtocell sub-district, causes, and can allow the efficient switching between the access point base station and other base station in the zone (below further description is provided).Therefore, can automatically dispose or configuring access point base station and do not need user's manual configuration access point base station, the manual configuration access point base station typically needs to be higher than the expert level of general user's level.
In 414, in response to the change in the network, access point base station can (for example, automatically) receives the operating parameter of renewal from the service provider.Change can comprise the loss or the minimizing of some type bag (package) in the change adding or remove the increase of loading in access point base station, the network or minimizing (for example, causing the service provider to change various parameters to realize the load balancing in the zone), environmental condition, the network or the detection of message, various base station powers and/or may influence any other change of access point base station.
In certain embodiments, but variation can be determined by access point base station at first and reported to the service provider before receive upgrading operating parameter.Yet in certain embodiments, the service provider can provide updated parameters and need not receive message from access point base station earlier.For example, as noted above, may be add new access point base station, and, may need for example according to the determined operating parameter that changes access point base station of service provider in response to the configuration of new access point base station to the zone.Therefore, access point base station can be come work based on the operating parameter that upgrades, and the operating parameter of renewal can reduce in the network that changes the interference by access point base station caused.Switching more efficiently in the network that updated parameters can also allow to change.
In addition, during operation, can in the overlay area, broadcast all Overhead Messages (such as PCH etc.) again so that the reliable delivery of paging (page) during the idle HO to be provided.In addition, when new user of existing user (for example, limiting with Channel Assignment message) interpolation and/or new resource, assignment can be instructed to (sending by the OAM interface or by aerial) and give access point base station to help to alleviate interference at every turn.
Notice, can automatically carry out above-described wide variety of method steps as 404,406,408,410 and/or 412.Term " automatically " is used to mean action and can't help the user and carry out.For example, in the superincumbent description, the user can order access point base station to begin configuration step so that access point base station to be set simply, and method step described above can be carried out and need not to be used to specify any further user's input of step.In one embodiment, in case access point base station is installed or it is couple to wide area network (for example, the internet), then access point base station just can automatically begin setting.Therefore, in this embodiment, the user can not provide any input during the configuration of access point base station.Yet, should be noted that the embodiment that needs or ask the user to import (for example affirmation of step or request certain user parameter) can exist during handling automatically.
Fig. 7 to 8 uses the access point base station acquisition time synchronously and the method for positional information
Fig. 7 illustrates and uses the access point base station acquisition time synchronously and the exemplary method of positional information.In one embodiment, the method shown in Fig. 7 can be used in the system that implements CDMA 2000 and/or UMTS agreement.The method of Fig. 7 can and utilize any computer system shown in the top figure or equipment or any other suitable device to use in conjunction with method shown in Figure 4.In certain embodiments, some steps shown in the method step can walk abreast (or parallel substantially) carry out, with shown in different order carry out or omit.For example, in certain embodiments, system can adopt CDMA 2000 agreements rather than UMTS agreement, so shown in dotted linely can omit 710 and 716.Similarly, also can carry out extra method step according to expectation.Here employed " walking abreast " can refer to and carry out at least two steps simultaneously.More specifically, when the executed in parallel step, the part of the execution of each step can be overlapping at least.In the following description, quoting of " access point base station " referred to access point base station 120.
In 702, access point base station can to the service provider send the request of activating (as, shown in 404).As mentioned above, access point base station can send this request to the service provider by the cable broadband connection.Selectively, access point base station can send this request to the service provider by wireless connections.In certain embodiments, access point base station can also send the various parameters of its various abilities of indication.In one embodiment, access point base station can additionally send the access point base station identifier.
In 704, access point base station can be determined request by receiving position, and the service provider asks the position of access point base station in this request.In certain embodiments, access point base station can also receive various network parameters, such as for example service identifier (SID), network identifier (NID), frequency assigning etc.These parameters can also be indicated the various abilities of network, such as for example to the support of 1xRTT, EV-DO, high detectable navigation (HDP) ability etc.In one embodiment, if know the position of access point base station roughly in grand environment, then access point base station can receive the tabulation of contiguous macro base station.
In 706,708 and 710, access point base station can determine whether to support 1xRTT, EV-DO and UMTS.Based on the different ability of access point base station and network, access point base station can be carried out first step with acquisition time synchronously and carry out second step to obtain the position of access point base station.As illustrating in greater detail below, in certain embodiments, first step can comprise use CDMA synchronizing channel (SYNC), high detectable navigation (HDP), primary synchronization channel (PSCH) and secondary synchronizing channel (SSCH) etc.Second step can comprise uses PDE (position determination entity) request, HDP, GPS etc.In certain embodiments, access point base station can walk abreast (or parallel substantially) carry out the first step and second step.For example, access point base station can be carried out the GPS search and also use HDP simultaneously.In certain embodiments, various steps (for example, the use of HDP) can be included in first and second steps among both.
In 712, if support 1xRTT, then access point base station can use CDMA Page Indication Channel PICH and synchronizing channel SYNC acquisition time synchronous, and the use location determines that entity (PDE) obtains positional information.In one embodiment, access point base station can be searched for the strongest contiguous macro base station.Then, access point can be adjusted to its receive frequency (Rx) transmission frequency (Tx) of contiguous macro base station and decoding paging indicating channel PICH and synchronizing channel SYNC in order to obtain accurate timing information.In various embodiments, access point base station can also use the IS-801 agreement to send position determination entity (PDE) request to obtain the position of access point base station to contiguous macro base station.In certain embodiments, use the information that obtains the IS801 session of PDE can be used to help to obtain more other step of precise position information from this.For example, the position that initial PDE may only know access point base station (about 5km for example depends on the radius of cell tower) in the radius of the cell tower that access point base station is receiving.As a result, can carry out the step more accurately that is used to obtain positional information, such as for example AFLT (less than 5km, based on the number of visible contiguous BS) or as following 718 described in GPS (approximately less than 100m, based on the quantity of the satellite that finds).
In 714, if support EV-DO, then access point base station can be used the synchronous and positional information of high detectable navigation (HDP) agreement acquisition time.In one embodiment, access point base station can be searched for the strongest contiguous macro base station.Then, access point base station can be adjusted its time and determine its position according to the step of HDP.In certain embodiments, seemingly by HDP information that provides and the info class that in CDMA 1x system, provides by AFLT.In various embodiments, this positional information GPS search of 718 that can be used for helping describing below.
In 716, if support UMTS, then access point base station can be obtained primary synchronization channel (PSCH) and secondary synchronizing channel (SSCH) so that acquisition time is synchronous.In certain embodiments, it is synchronous that access point base station can be utilized primary synchronization channel PSCH and secondary synchronizing channel SSCH execution time slot and frame boundaries.Which in various embodiments, can in 718, use according to the determined temporal information of obtaining of time synchronized to determine search satellite.
In 718, access point base station can use the GPS search to obtain positional information.For example, in certain embodiments, access point base station can adopt assistant GPS (AGPS) search, wherein uses another step (for example, PDE request or HDP) to obtain initial position, and uses this initial position to determine position more specifically by GPS.
In 720, access point base station can determine positional information and regularly whether accuracy is enough.If positional information and timing accuracy are not enough, for example, do not serve available or lose with being connected of service provider, then access point base station can acquisition time synchronously and/or positional information (for example, the method for Fig. 7 can turn back to 706,708,710 and 718).On the other hand, if positional information and timing accuracy are enough, then access point base station can send positional information to the service provider.In one embodiment, positional information can comprise the latitude and the longitude of access point base station.In other embodiments, positional information can comprise triangulation information.In certain embodiments, positional information can comprise the position with respect to the macro base station of additional access points base station or vicinity.
In 722, access point base station can receive base station identifier and PN skew appointment or scrambling code from the service provider and distribute.In different embodiment, can come allocation base station identifier and/or PN skew/scrambling code based on the position that is sent of access point base station at least so that control/alleviate in the sub-district disturb and simplify obtain/synchronizing step reduces terminal complexity simultaneously.In certain embodiments, access point base station can receive the out of Memory depend on the position that is sent equally from the service provider, but such as the various second information-power parameter described in 410, access strategy, the receiving terminal that can use access point base station, handoff parameter etc. above for example.
In 724, access point base station can use the information that is received that provides in 722 to begin transmission.In various embodiments, access point base station can periodically be adjusted its timing in response to the periodicity timer and check its position.
Fig. 8 illustrates and uses the access point base station acquisition time synchronously and the exemplary method of positional information.In one embodiment, method shown in Figure 8 can be used in the system that implements CDMA 2000 agreements.Can use any computer system shown in the top figure or equipment or any other suitable device to be used in combination this method with method shown in Figure 4.In various embodiments, some shown in the method step can walk abreast (parallel substantially) carry out, with shown in different order carry out or omit.Also can carry out extra method step according to expectation.
In 802, access point base station sends the request of activation to the service provider, as in top 702.
In 804, the access point base station receiving position is determined request, as in top 704.In certain embodiments, access point base station can also receive the tabulation of various network parameters and contiguous macro base station.
In 806 and 808, access point base station can determine whether to support 1xRTT and EV-DO.As mentioned above, depend on the agreement of being supported, access point base station can be carried out first step with acquisition time synchronously and carry out second step to obtain the position of access point base station.In certain embodiments, first step can comprise use CDMA SYNC channel, HDP etc.Second step can comprise uses PDE request, ALFT, GPS etc.
In 810, if support 1xRTT, it is synchronous that then access point base station can be used CDMA SYNC channel acquisition time.In one embodiment, access point base station can be searched for the strongest contiguous macro base station.Then, access point base station can be adjusted to its receive frequency (Rx) transmission frequency (Tx) of contiguous macro base station, and decoding synchronizing channel SYNC is so that acquisition time is synchronous.
In 812, access point base station receives the PDE request from service provider's contiguous macro base station.In one embodiment, PDE request can with the IS-801 protocol-compliant.
In 814, access point base station can send advanced forward link triangulation (ALFT) result to macro base station, makes its initial position fix that can obtain access point base station to reduce the GPS search window.
In 816, access point base station can receive various corresponding GPS timing parameters, such as for example search window size, star catalogue (ephemeris) etc.
In 818, access point base station can use the GPS search to obtain positional information.As shown in Figure 8, in certain embodiments, access point base station can use the GPS timing parameters that receives in 816 further to help the GPS search.
In 820, access point base station determines whether the GPS search has obtained accurate in locating.If do not obtain accurate in locating, then access point base station can continue the GPS search in 818 and carry out 806 to 816 once more so that receive new GPS timing parameters.On the other hand, if obtained accurate in locating, then access point base station can be determined its position and provide this positional information to the service provider.
In 822, if support EV-DO, then access point base station can use HDP to come acquisition time synchronously and positional information and provide this positional information to the service provider.
In 824, access point base station can receive the identifier and the PN skew of base station and assign.As in 722, the service provider can come allocation base station identifier and PN skew based on the position of access point base station at least.In various embodiments, access point base station can receive such as the extraneous information described in 410.
In 826, access point base station can with 724 in the same information that use to receive begin transmission.
Notice, be used for acquisition time synchronously and the specific step of positional information though Fig. 7 to Fig. 8 describes, also can be according to other step of expectation use.For example, in certain embodiments, access point base station can be used other step of utilizing triangulation and/or global positioning system.
Although enough described embodiment above in detail, in case top open quilt is understood all sidedly, then a large amount of variations and modification will be conspicuous to those skilled in the art.Intention is interpreted as comprising all such variation and modifications with claim.
Cross reference to associated documents
The application requires the U.S provisional application sequence number No.60/081 that is entitled as " Femto Position and TimeAcquisition " of submission on September 21st, 2008,368 priority, its invention people is Stanislaw Czaja and Paul Chun-Hsiung Wei, its full content is incorporated herein by reference, as here set forth comprehensively and intactly.
Claims (14)
1, a kind of acquisition time comprises synchronously and the method for positional information:
By the activation request of wired connection transmission from the access point base station to service provider, wherein the service provider provides radio communication in grand zone, and wherein access point base station provides radio communication in the local zone;
It is synchronous with acquisition time to carry out first step;
Carry out second step to obtain the position of access point base station; And
Transmit the position that is obtained to the service provider.
2, method according to claim 1, wherein said access point base station are the femtocell sub-districts, and some step in this first step and this second step is an executed in parallel.
3, method according to claim 1, wherein this first step may further comprise the steps or its combination:
Use synchronizing channel to obtain synchronizing information;
Use high detectable navigation to obtain synchronizing information;
Use primary synchronization channel to obtain synchronizing information; And
Use secondary synchronizing channel to obtain synchronizing information.
4, method according to claim 1, wherein this second step may further comprise the steps or its combination:
Employing global positioning system location;
Adopt high detectable navigator fix; And
Adopt position determination entity request location.
5, method according to claim 1 further comprises:
Reception is wherein determined the information of described reception at least from described service provider's information based on the position that is obtained.
6, method according to claim 5, the information of wherein said reception comprise following information or its combination:
Base station identifier;
One or more power parameters; And
Pseudo random number skew or scrambling code.
7, a kind of femtocell sub-district comprises:
At least one radio port is used to provide and one or more two-way communications that access terminal, and wherein said at least one radio port can be used in radio communication is provided in the local zone;
First port is used for providing two-way communication with the service provider by IP network;
Processor is couple to described at least one radio port and first port;
Storage medium is couple to described processor, and wherein said storage medium comprises program command, this program command can carry out in order to:
Transmit the request of activation by wired connection to the service provider;
It is synchronous with acquisition time to carry out first step;
Carry out second step to obtain the position of access point base station; And
Transmit the position that is obtained to the service provider.
8, femtocell according to claim 7 sub-district, wherein said program command further can be carried out this first step and this second step concurrently.
9, femtocell according to claim 7 sub-district, wherein this first step may further comprise the steps or its combination:
Use synchronizing channel to obtain synchronizing information;
Use high detectable navigation to obtain synchronizing information;
Use primary synchronization channel to obtain synchronizing information; And
Use secondary synchronizing channel to obtain synchronizing information.
10, femtocell according to claim 7 sub-district, wherein this second step may further comprise the steps or its combination:
Employing global positioning system location;
Adopt high detectable navigator fix; And
Adopt position determination entity request location.
11, femtocell according to claim 7 sub-district, wherein said program command further can be carried out in order to receive the information from described service provider, wherein determine the information of described reception at least based on the position that is obtained.
12, femtocell according to claim 11 sub-district, the information of wherein said reception comprise pseudo random number skew that has distributed and the scrambling code that has distributed.
13, a kind of acquisition time comprises synchronously and the method for positional information:
By the activation request of wired connection reception from the access point base station to service provider, wherein the service provider provides radio communication in grand zone, and access point base station provides radio communication in the local zone; And
Receive the position of access point base station, wherein access point base station is carried out first step with acquisition time synchronously and carry out second step to obtain the position of described reception.
14, method according to claim 13 further comprises, the service provider sends following information or its combination to access point base station at least:
The pseudo random number of distributing based on the position of described reception is offset or scrambling code.
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| US12/143,924 US8213391B2 (en) | 2007-10-05 | 2008-06-23 | Time synchronization of femtocell |
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| US8136808P | 2008-07-16 | 2008-07-16 | |
| US61/081,368 | 2008-07-16 |
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| CN101938827A (en) * | 2010-07-24 | 2011-01-05 | 福建邮科通信技术有限公司 | TD-SCDMA format Femtocell air interface synchronization method |
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| CN109165343B (en) * | 2018-08-02 | 2019-10-11 | 北京小蓦机器人技术有限公司 | Content acquisition method, device, equipment and computer readable storage medium |
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| EP1212852B1 (en) * | 1999-09-17 | 2007-02-07 | QUALCOMM Incorporated | System and method for synchronizing base stations in cellular and pcs networks |
| WO2005015917A2 (en) * | 2003-08-06 | 2005-02-17 | Ibis Telecom, Inc. | System and method for automatically configuring and integrating a radio base station into an existing wireless cellular communication network with full bi-directional roaming and handover capability |
| US8483092B2 (en) * | 2004-06-04 | 2013-07-09 | Elvino Silveira Medina De Sousa | Autonomous infrastructure wireless networks |
| CN101064860B (en) * | 2006-04-29 | 2012-04-11 | 中兴通讯股份有限公司 | Method for automatic configuring wireless parameter of cellular mobile communication system |
| CN100550839C (en) * | 2006-06-16 | 2009-10-14 | 华为技术有限公司 | A kind of base station automatic configuration method and system |
| CN101193402B (en) * | 2006-11-20 | 2010-04-14 | 华为技术有限公司 | Configuration method and system for multi-system base station |
| CN101183898B (en) * | 2007-12-27 | 2011-05-25 | 中兴通讯股份有限公司 | System, method and device for implementing synchronization of micromicro honeycomb base station |
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| CN101938827A (en) * | 2010-07-24 | 2011-01-05 | 福建邮科通信技术有限公司 | TD-SCDMA format Femtocell air interface synchronization method |
| CN101938827B (en) * | 2010-07-24 | 2013-03-06 | 福建邮科通信技术有限公司 | TD-SCDMA format Femtocell air interface synchronization method |
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