CN1717907A - System of a wireless link - Google Patents
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- CN1717907A CN1717907A CNA2004800009462A CN200480000946A CN1717907A CN 1717907 A CN1717907 A CN 1717907A CN A2004800009462 A CNA2004800009462 A CN A2004800009462A CN 200480000946 A CN200480000946 A CN 200480000946A CN 1717907 A CN1717907 A CN 1717907A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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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]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/105—PBS [Private Base Station] network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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Abstract
This invention is generally concerned with wireless communications systems, and more particularly with apparatus, methods and computer program code for establishing wireless communication links. A controller for a mobile wireless communications device, for controlling establishment of a wireless link between the device and a second wireless communications device is described. The controller comprises data memory for storing home device data, the home device data comprising data for establishing a wireless connection with a home second wireless communications device, a data processor coupled to the data memory and configured to control the mobile wireless communications device to attempt to establish the wireless link with the home second wireless communications device, and a data provider for providing the home device data for at least one the home device to the data memory for storage, wherein the home device data comprises data predicting a the home wireless communications device the mobile wireless communications device is likely to connect to as determined from previous use of the mobile wireless communications device.
Description
Technical field
The present invention relates generally to wireless communication system, relate in particular to the equipment that is used to set up wireless communication link, the method and computer program code.
Background technology
Routinely, when honeycomb or other wireless device is activated or when needing service, the infrastructure that its search is available.In the situation of cellular radio Communication system terminal, this can comprise the base station; In the situation of wireless lan (wlan), can comprise said ' access point '; And in the situation of wireless personal domain network (WPAN), can comprise the equipment that another is communicated by letter with it, and for example, ancillary equipment.Usually, this relates to the scanning radio spectrum to find suitable base station (BS) or access point, perhaps for example based on the inquiry of the question and answer mode under the situation of the WPAN of bluetooth process (talk-then-listen inquery procedure).This expends time in, and especially long and when being enough to be found by the user, can bring problem in the initial synchronisation duration.For example, in bluetooth, default inquiry procedure has 10.24 seconds duration.When switching between pattern in the middle of calling out, software-defined radio (SDR) or multi-mode radio receiver can run into further difficulty, because free usually in this case restriction.
Fig. 1 shows and is used for the flow chart that the routine of the terminal of the cell mobile communication systems of mobile telephone network for example adds electric process.After the startup of step 10, whether terminal inspection 12 stores any information when terminal is closed power supply at last, especially determines whether to obtain the information of the last serving BS of sign stored.
If can not obtain such information, then process is carried out conventional initial cell synchronously (step 14) is so that be connected to base station (step 16) with terminal.Alternatively, can use if identify the information of last serving BS (perhaps its frequency) at least, then terminal attempts being connected to this base station, the sub-district (step 18) at place when promptly being connected to terminal and closing, if and success (step 20), then omit conventional initial cell synchronizing process 14.In a similar manner, can manual paired communication equipment in WPAN, for example, between the headset and terminal of supporting bluetooth, it will almost link together exclusively.
Have the leeway of improving these simultaneous techniquess, in some cases, this may still cause long lock in time.For example, when different place, the base station of serving this terminal when being closed with terminal started terminal, such as travelling because of the user, the sub-district can show significant delay synchronously.Similarly, in the situation of WPAN, usually exist and set up the link delay associated, even between the equipment of many times having communicated by letter each other in the past.
Summary of the invention
In a broad aspect, Shuo Ming embodiments of the invention here according to the predictable relatively discovery of terminal use's behavior, are realized and the base station, access point or WPAN, equipment faster synchronously.For example, the user often opens its cellular terminal in one of less relatively position, perhaps in the situation of WPAN, use nucleus equipment, for example PDA (personal digital assistant) and one group of relatively limited ancillary equipment, digital camera for example, projector and/or printer communicate.According to this embodiment of the invention, utilize the notion of home device (home device), its can comprise WPAN equipment or, for cellular network, can comprise the base station.In the situation of WPAN network, best and the special services of home device, for example print, image is caught or the like and to be associated, and therefore when the needs special services, the WPAN address that it can be mapped to home device is Bluetooth address in a preferred embodiment, therefore needn't carry out initial device discovery or " inquiry " process.In the situation of cellular network, for example be given for the frequency of home base station and/or the home base station identifier of code, or homebs list preferably, be used to terminal is directed to most probable serving BS, therefore in many cases, near the available base stations of search terminal fully.For WLAN, can use similar solution, to allow that at first paging is to most probable local device.
Therefore, according to a first aspect of the invention, a kind of controller of mobile radio communication apparatus is provided, be used to control the foundation of the Radio Link between this equipment and second Wireless Telecom Equipment, controller comprises: be used for the data storage of store home device data, home device data comprises the data that are used to set up and belong to the wireless connections of second Wireless Telecom Equipment; Data processor is connected to data storage, and is set to control Wireless Telecom Equipment to attempt setting up and belonging to the Radio Link of second Wireless Telecom Equipment; Provide equipment with data, be used for providing at the home device data of at least one home device so that storage to data storage, wherein, home device data comprises according to the previous use of mobile radio communication apparatus and the data of ownership Wireless Telecom Equipment definite, that prediction mobile radio communication apparatus most probable is connected to.
Data provide equipment can comprise manual input interface, or receive the device of data from external source, or monitoring agent, but data provide equipment preferably to be set to automatically provide home device data.Be used for the embodiment of cellular network,, then using home device data only if last base station of using is unavailable; Alternatively, home device data can comprise the data of a plurality of home device or base station, and one of them comprises the base station of last use.Preferably, data storage is stored under the control of processor and is used historical data, it comprises the data of before having set up second Wireless Telecom Equipment of Radio Link specific to mobile device with it, alternatively, comprise the device type data, so that provided equipment to be used to determine the home device data of storing by data.
When being used for cellular communications networks, home device data can comprise base station or said ' frequency data of 3G ' system carrier and/or (scrambling) code data of base station.In the wireless terminal of integrated multi-mode or software definition, home device can comprise the base station at one or two (perhaps more a plurality of) or network, wherein wireless and described network is operated allowing and is for example reconfigured faster, thereby compensates in the described network gap of the covering of or other.
In the embodiment based on WPAN, home device data preferably includes definition home device classification, the data of service type for example, and making can be according to the classification specified data, and for example service request is selected home device or home device.For example, this is convenient to be connected to fast one or more home printer, one or more ownership scanners, and one or more ownership digital cameras, or the like.In the embodiment based on WPAN, home device data preferably also comprises the address date of home device and alternatively, and the estimating clock data of this equipment are beneficial to home device synchronous.Similar technology can be used for Radio Link at WLAN.
In the embodiment based on WPAN/WLAN, home device data can comprise that the definition home device is a fixed location device, for example the data of access point.Before controller is preferably in trial and any miscellaneous equipment is connected, attempt being connected with home device.
In yet another aspect, the invention provides the method for the foundation of Radio Link between the control mobile radio communication apparatus and second Wireless Telecom Equipment, this method comprises: provide at least one home device data that belongs to second Wireless Telecom Equipment to store to data storage, wherein, home device data comprises according to the previous use of mobile radio communication apparatus and the data of ownership second Wireless Telecom Equipment definite, that prediction mobile radio communication apparatus most probable is connected to; And the control mobile radio communication apparatus is to attempt setting up Radio Link with ownership second Wireless Telecom Equipment.
Especially on the data medium of for example disk, CD-ROM or DVD-ROM, programmable memory (for example read-only memory (firmware)), perhaps on the data medium of for example light or electrical signal carrier, the present invention also provides the processor control routine, is used to realize above-mentioned controller and method.Can be at DSP (digital signal processor), ASIC (application-specific integrated circuit (ASIC)) or FPGA (field programmable gate array) go up the embodiment that realizes the said equipment and method.Therefore, realize that code of the present invention can comprise the conventional program code, or microcode, or for example be used to be provided with or control the code of ASIC or FPGA.Similarly, code can comprise hardware description language, Verilog (trade mark) for example, the code of VHDL (Very High Speed Integrated Circuit (VHSIC) hardware description language) or SystemC.Person of skill in the art will appreciate that, can be by communication such code of distribution between a plurality of continuous parts to each other.
Description of drawings
Only pass through mode these and other aspect that invention will be further ex-plained with reference to the appended drawings of example now, wherein:
The routine that Fig. 1 to Fig. 5 shows the terminal of cell mobile communication systems respectively powers up the flow chart of opening process, the example of blueteeth network, the example of personal area network and related infrastructure, the general structure of third generation digital mobile telephone system, and the wireless example of software definition;
Fig. 6 shows first cellular terminal according to embodiments of the invention and powers up opening process;
Fig. 7 shows second cellular terminal and powers up opening process; And
Fig. 8 illustrates the example of general terminal.
Embodiment
At this, it is helpful looking back wireless personal-area network and some aspect of local area network (LAN) and the each side of cellular network.
Personal area network (PAN) can comprise some mobile devices, its each other and and its user between need to carry out information exchange.Can use for example cellular radio, bluetooth (trade mark) (bluetooth special interest group (SIG), http://www.bluetooth.com/), IrDA (Infrared Data Association (IrDA), http://www.irda.org/) and the technology of WLAN (for example, WLAN (wireless local area network) ieee standard 802.11, " version ISO/IEC 8802-5-1998 in 1999; local and metropolitan area network standard-WLAN medium access control (MAC) and physical layer (PHY) standard, " 1999).
Fig. 2 shows the example of blueteeth network, and wherein computer 30, and printer 32 and camera 34 all rely on two-way bluetooth radio link 36 to communicate each other.Can also use blue teeth wireless to be connected to the high speed voice/data access point.
The bluetooth standard tissue is paid close attention to short distance (can reach about 10 meters) radio frequency transmission usually, and it substitutes as cable and personal area network's (PAN).Basic standard provides at 0.7Mbps (V1.1) or 10Mbps (V1.2) and has gone up frequency hopping spread spectrum (FHSS) link of work; With high speed bluetooth greater than the 10Mbps speed operation.Bluetooth mainly is the standard that initiate in Europe, and in the U.S., IEEE 802.15 standard series, especially IEEE 802.15.3 provide the equivalent standard collection of assembling and have planning.Some embodiment of the present invention describes with reference to bluetooth (trade mark), but person of skill in the art will appreciate that, application of the present invention is not limited thereto standard and relevant criterion.
PAN is not necessarily limited to monotechnics, for example bluetooth.Fig. 3 shows another example of PAN and network of relation infrastructure.PAN 100 in the diagram example comprises portable terminal 102, PDA 104 and camera 106, and it carries out wireless (radio frequency) communication each other.Portable terminal 102 also communicates with the base station 108 of a 3G mobile telephone network 110, and a 3G mobile telephone network 110 has to the internet 114 gateway 112.Second portable terminal 116 that is carried by second user communicates with second base station 118 of the 2nd 3G mobile telephone network 120 that has to the internet 114 second gateway 122.PDA 104 also with WLAN 124, for example IEEE 802.11WLAN communicates, WLAN 124 also is connected to internet 114.Be appreciated that and many other systems can be connected to the internet, as the first and second third party software developer servers 126,128, shown in the PC of family 130 and one or more m commercial affairs (m-commerce) server 132.Tie line via Bluetooth link for example also can be arranged, between the portable terminal 102 and 116 shown in dotted line 134.
Next nearest WLAN technology will use the example of Hiperlan/2 to look back, Hiperlan/2 is the European standard with 54Mbps wireless network of security feature, it operates in the 5GHz wave band, about the same in Unite States Standard IEEE 802.11a, yet, this is the mode of example, and embodiments of the invention are not limited to such WLAN.
By data link control (DLC) layer (comprising master data transfer function and Radio Link control (RLC) sublayer), packet-based convergence layer (comprising public part definition and Ethernet service specific convergence sublayer), physical layer definition and network management define Hiperlan (high performance radio local area network) type 2 standards.The more specifically data of relevant Hiperlan/2 can be with reference to following document, and is here that it is incorporated by reference: ETSI TS 101 761-1 (V1.3.1): " Broadband Radio Access Networks (BRAN); HIPERLAN Type 2; Data Link Control (DLC) Layer; Part 1:Basic Data TransportFuctions "; ETSI TS 101 761-2 (V1.2.1): " Broadband Radio AccessNetworks (BRAN); HIPERLAN Type 2; Data Link Control (DLC) Layer; Part 2:Radio Link Sublayer "; ETSI TS 101 493-1 (V1.1.1): " Broadband Radio Access Networks (BRAN); HIPERLAN Type 2; Packet based Convergence Layer; Part 1:Common Part "; ETSI TS101 493-2 (V1.2.1): " Broadband Radio Access Networks (BRAN); HIPERLAN Type 2; Packet based Convergence Layer; Part 2:Ethernet Service Specific Convergence Sublayer (SSCS) "; ETSI TS101 475 (V1.2.2): " Broadband Radio Access Networks (BRAN); HIPERLAN Type 2; Physical (PHY) Layer "; ETSI TS 101 762 (V1.1.1): " Broadband Radio Access Networks (BRAN); HIPERLANType 2; Network Management ".These documents can obtain from ETSI website www.etsi.org.
Comprise a plurality of portable terminals (MT) based on for example typical radio LAN of Hiperlan/2 system (local area network (LAN)), access point of each portable terminal and network (AP) or base station communication.Access point is also communicated by letter with central controller (CC), and central controller can have to other network, for example arrives the fixedly link of the local area network (LAN) of ethernet type.In some instances, for example in not having the Hiperlan/2 network of local access point, a portable terminal can be taken on the role of access point/central controller, so that allow direct MT to the link of MT (yet, in this article, quote " portable terminal " and quote " access point " and should not be understood that any restriction) at the Hiperlan/2 system.
Mobile telephone network, for example the transfer of data in 2.5G and 3G (third generation) network also is important.
The third generation mobile network uses CDMA (code division multiple access) spread-spectrum signal to communicate on the wave point between mobile radio station and the base station.International mobile telecommunication IMT-2000 standard (www.ituint, here it is drawn be with reference to) comprises these 3G networks (and said 2.5G network).Third generation technology is used CDMA (code division multiple access), and the IMT-2000 standard is considered three kinds of main operational modes, at the direct spread F DD (Frequency Division Duplexing (FDD)) of the W-CDMA (Wideband Code Division Multiple Access (WCDMA)) of Europe and Japan, the CDMA-2000 multicarrier FDD of the U.S., and the TD-CDMA (time division duplex CDMA) and the TD-SCDMA (time-division synchronization CDMA) of China.
The wireless access of 3G network partly is generically and collectively referred to as UTRAN (Universal Terrestrial Radio Access Network network), and comprises that the network of UTRAN access network is known as UMTS (universal mobile telecommunications system) network.The UMTS system is that (its concrete technical specification can find on www.3gpp.org third generation partnership projects for 3GPP, the 3GPP2) main body of the standard that is generated, and it is drawn be reference here.These standards comprise technical specification 23.101, and it has illustrated general UMTS architecture, and technical specification 25.101, and it has illustrated (FDD) wireless transmission and reception respectively, and edition 4 .0.0 and version 3 .2.2 draw it here and be reference.
Fig. 4 is in the 150 general structures that show third generation digital mobile telephone system.In Fig. 4, radio mast (radio mast) 152 is connected to base station 154, and base station 154 is by base station controller 156 controls.Shown in mobile communication equipment 158 and base station 154 by wireless or air interface 160, carry out two-way communication as known Uu interface in Um Interface known in GSM (global system for mobile communications) network and GPRS (general packet radio service) network and CDMA-2000 and the W-CDMA network.At any constantly, a plurality of mobile devices 158 be connected to usually given base station, the base station comprises that a plurality of wireless transceivers are to serve these equipment.
Above-mentioned network infrastructure is managed basically, and mobile communication equipment 158 is connected with circuit switched voice between other mobile device and/or the PSTN 166.Said 2.5G network, for example GPRS and 3G network are increased to packet data service on the circuit switched speech service.In a broad sense, packet control unit (PCU) 172 is added on the base station controller 156, and rely on level switch series, be connected to packet data network, for example the internet 178.In the network based on GSM, these comprise Serving GPRS Support Node (SGSN) 174 and Gateway GPRS Support Node (GGSN) 176.In the system that is appreciated that in the system of Fig. 4 and illustrates subsequently, the function of the unit in the network can be positioned at the single one physical node, or is positioned on the discrete system physical node.
Communicating by letter between mobile device 158 and the network infrastructure generally includes data and control signal.Data can comprise the speech data of digital coding, perhaps can use data modem unit to transmit the data of being to and between the mobile device pellucidly.In GSM type network, also can use GSM Short Message Service (SMS) to send text and other low bandwidth data.
In 2.5G or 3G network, the simple speech that does not just arrive another phone that mobile device 158 can provide connects.For example, mobile device 158 can be in addition or visit, web page browsing, Email and other data, services at the service of video and/or multi-medium data is provided alternatively.Can think that in logic mobile device 158 comprises portable terminal (integrated Subscriber Identity Module (SIM) card), it has to terminal equipment, and for example data processor or personal computer is connected in series.
The radio of reconfigurable software definition (SDR) notion has become the theme of nearest active research and (has seen, for example, " Authorization and use of software DefinedRadio:First Report and Order ", FCC, the Washington D.C., September calendar year 2001).Support that the subscriber equipment and the network equipment of SDR can dynamically be programmed, reconfiguring its feature, thereby provide the performance of improvement and/or additional feature, and therefore also provide other income stream chance for the service provider.Software-defined radio is applied with commerce and department of army civilian.
SDR forum (software-defined radio (SDR) forum, http://www.sdrforum.org/) has defined the opening architecture of the common software api layer with band standard functions.Summary shows this structure among Fig. 5.In Fig. 5, SDR comprises one group of 7 independent subsystem 182a-g, and each comprises hardware, firmware, and operating system and software module, these can be public for the application program more than.Controlled function 184 comprises that to each functional module the data of intermodule exchange and user's transmission (' I ') of information provide control (' C ').SDR in moving (wireless) terminal realizes being similar to the software that operates on the universal PC, although owing to the speed reason, some base band service realize and the controlled function direct interface to hardware layer, and not via for example middle real-time kernel or driver.The embodiment of the method according to this invention that the SDR system of Fig. 5 is suitable for describing later.
Referring now to the realization of the embodiment of the invention, explanation is used for the example of the situation of the situation of terminal of cellular communications networks and WPAN equipment.Yet similar notion can be applied to other wireless system, the resource that these systematic searches can be used, Wireless LAN system for example, satellite service or the like.We will at first illustrate the use of home device or station list, and the method for home device or station list data is determined in explanation then.
Fig. 6 shows the cellular terminal power-up procedure of using home base station data or homebs list.Such homebs list comprises M, and M can be one here, and each describes a specific base stations, for example in Frequency Distribution, and time slot, code or other parameter aspect are described.Item supposition in homebs list is relevant with the position of mobile device possibility power-on.
In a broad sense, if power-off before serving BS unavailable, then in the mobile terminal to search homebs list name or the sign the sub-district.So,, connect 200 terminals and the relevant information in last employed sub-district whether available 202 when determining before to be closed with terminal with reference to Fig. 6.If such information can be used, then terminal searching is served the base station 204 of terminal sub-district at place when being closed power supply, and attempts being synchronized to this base station.Terminal is determined synchronously whether success 206, and if success synchronously, continue therewith the base station and operate 208.If unsuccessful synchronously, variable n is initialised 210 to 0, and then, terminal obtains a n from homebs list, and attempts being synchronized to this base station 212.When step 202 can not obtain the power-off information of last sub-district of using, also follow this process.Whether the terminal inspection successfully is synchronized to n base station 214 then, if unsuccessful, then increase progressively n 216, check the end 21 that whether has arrived homebs list, if and do not arrive the end of homebs list, would then loop back the next item down 212 of checking in the tabulation.If successfully be synchronized to the base station in the home device, then equipment continues therewith the base station and operates 218.If terminal can not with any device synchronization in the homebs list, then terminal is carried out conventional initial cell synchronizing process 220.
Fig. 7 shows the cellular terminal power-up procedure of simplification, has wherein indicated similar unit among those Fig. 6 with identical numeral.In the process of Fig. 7, prior to last power-off, the base station of service terminal is inserted into in the homebs list, in the diagram example, and the item n=0 in the tabulation.Such result is a process of having simplified Fig. 6.
Next step, we illustrate the method for the data of determining homebs list.Simple and clear implementation is the user with some ' hobbies ' that will be inserted into tabulation to the terminal manual programming.For example, the enterprise customer may be in his or her family, Heathrow (Heathrow) and gatwick airport, and programme in the base station of public transportation destination.Because the user may not know technical parameter, the operating frequency of these base stations for example, the user can be inserted into Current Serving BTS by command terminal and realize such programming in the tabulation, and the base station that makes this instruction for example send at Heathrow Airport can cause serving the path of the Heathrow Airport that the user is arranged in is inserted into homebs list.Can also provide foundation ' temporary transient ownership ' base station so that accept the option of roaming to the user.Read/write/editor's control of tabulation more generally, can be provided to the user.
Although this manual implementation is direct realization, yet preferably do not need the user to construct homebs list during the course with participating in.To this, there are some optional implementations, it can use separately, or is used in combination.
Terminal can keep the record of selecteed sub-district when search of initial zone usually, and these base stations have formed the basis of homebs list.Such tabulation can be dynamic, for example, in order to be fit to up-to-date user locations, at the fixed time after remove entries.Another implementation is to be recorded in to go up some opportunitys average and most common base stations that get, just serving equipment when equipment is closed.Another possibility is that terminal receives the home base station data by cellular network.Therefore, network or Virtual network operator can be with some predefined base stations, for example, those corresponding to the base station on local airport and alternatively, base station or user's address, home address for example, programme mobile device or terminal.In simple embodiment, homebs list has the single list item corresponding to the base station of subscriber household position (it can be user's home address or another address, for example, enterprise address).
Consider the example of WPAN below, can realize home device by manual or foundation automatically once more in the mode of broadly similar.Yet, for WPAN or similar network, in some device types each, home printer for example, ownership projector or the like, WPAN equipment preferably has home device or home device.Then, WPAN equipment can be determined required service and it is mapped on the suitable home device.Be appreciated that the WPAN terminal needn't be exclusively peripheral communication therewith, but attempt being connected to ownership ancillary equipment, for example, before realizing common inquiry scan, equipment is carried out paging.
Consideration realizes this embodiment in laptop computer.In many cases, the user will wish from family, perhaps print from its enterprise or office, although home device needn't former state be specified these positions.Yet, by in home device, comprising printer in the subscriber household and/or the printer in the user's office,, therefore, can significantly reduce the time of setting up as the radio communication of the link that is used to print with the printer of these positions of paging at first.Yet, if the user is in different positions, wherein not from the replying of any equipment in ' home printer ' or ' home printer tabulation ', then laptop computer can be carried out inquiry scan with normal mode, connects to seek suitable local device.
In such application, home device can manually be determined, for example, allow the user to import the data of definition home device by user interface, for example, address date perhaps should be comprised in the home device by indicating the current equipment that connects.Alternatively, can by this equipment of identification or, those have used the maximum duration or the maximum equipment of number of times, automatically determine home device or list of devices.As discussed previously, usually, attempt being connected to home device or equipment attempting being connected to another not before the equipment of the same type in home device.In bluetooth (trade mark) example, this permission equipment connects to enter paging under the situation of query script formerly needn't carrying out.In addition, because connection device connects in the past, it does not need use to force page-mode (its must by the bluetooth equipment support), but can use optional page-mode, and its target is to connect more quickly between two bluetooth equipments.
In the example of WLAN, situation and above similar at WPAN explanation, and, similarly, can for example belong to access point for a plurality of different device types, home printer or the like is specified one or more home device.
In the example of multi-mode or software-defined radio application, terminal is preferably each wireless mode and safeguards home base station or homebs list.By for example determining the most frequent base station of serving terminal under a pattern, or most probable is served the base station of terminal after mode switch, can determine this tabulation.For example, when whilst on tour on common route, the gap regular meeting that 3G covers appears at essentially identical position, thereby prompting switches to the local GSM base station.In this example, this GSM base station can be inserted in the homebs list and switch to GSM to be used for 3G.
This solution has reduced in new operator scheme the demand to the search consuming time of serving BS, and has reduced the demand to additional information on the available base stations, otherwise such SDRs must use such information.
To provide the more specifically details of the embodiment of the invention now at the realization of some type cordless communication networks.
In order to detect the GSM carrier wave, terminal need be carried out BCCH Broadcast Control Channel power measurement.In addition, if use the GSM carrier wave, need to obtain SCH synchronizing channel and/or FCCH frequency correction channel, so that can decode BCCH as the service carrier wave.This measurement needs twice frequency to change (current pattern-BCCH
GSMCarrier wave-current pattern), the each change takies 500 μ s and a power sample in common the realization.Obtain GSM and recommend the needed precision need be, so that required total time of one-shot measurement is 1.2ms less than the power sample cycle of 200 μ s.
This supposition terminal know in advance should be detected frequency-otherwise, have how many GSM carrier waves, this process just must repeat how many times.For example, dispose in (except the E-GSM) at two waveband GSM-900/DCS-1800, there are 499 carrier waves, and expend mode (even the several measurements of executed in parallel of 1.2ms with each measurement, terminal also must retune to each GSM carrier wave), this need expend 500 * 1.2ms or near the Measuring Time of 600ms.
Can reduce this Measuring Time by using home base station (or " home base station ") tabulation." homebs list " safeguards the Frequency Distribution of possibility serving BS and the record of carrier wave.Then,, scan the carrier wave in this tabulation, set up the needed time of link with remarkable minimizing prior to the implementation of the routine of above-mentioned explanation.
Realization in UMTS FDD/TDD network:
The UMTS standard has provided ' the measuring sequence parameter ' of the switching from GSM to UMTS/select again.Usually, these parameters are identical for switching between the UMTS frequency.If do not know the scrambled code (regular meeting runs into this situation when initial synchronisation) of given carrier wave in advance, then need be with the next stage: frame regularly; Scrambled code identification; And the Ec/No of the Ec/Io of definite P-CCPCH (main Control on Communication physical channel) or CPICH (communication pilot channel).
If known in advance scrambled code then can omit intermediate steps.This complete procedure should expend the time of 30 to 40 milliseconds of magnitudes.
Have 19 carrier waves that UMTS 5MHz is wide, it is because frequency raster (frequencyraster) and can be with skew about the step-length of 200kHz is in this frequency band, thereby provides 171 possible centre frequencies.Disregard the complexity (based on this, in case located a centre frequency, then reducing the option at other frequency) that frequency raster thus causes, this needs 19 * 35ms, promptly needs to expend the Measuring Time of 665ms.
For " home base station ", " homebs list " keeps the carrier wave of possibility serving BS and the record of scrambled code.Before above-mentioned conventional implementation, scan the carrier wave in this tabulation.
Realization in the HiperLAN-2/802.11a network:
The terminal of attempting the location and finally being associated with the HiperLAN-2 system must be from different access point assessing link quality.This assessment is to obtain by the intensity of measuring received signal during receiving broadcast channel (BCH).Section start at each mac frame--be every 2ms once, access point/central controller (AP/CC) sends BCH.Because terminal is not synchronized to AP/CC, whole M AC frame may must be received, and this means that the instant time of measuring of single is 2ms (not attempting reducing the time effect (temporary effect) of decline).In addition, must consider (supposition) constant 500 μ s that each synthesizer retunes, thereby cause each the measurement to expend 3ms.This supposes that once more terminal aimed at specific 20MHz channel.If terminal wishes to scan a plurality of channels, because definition has 19 HiperLAN-2 channels on the wave band that HiperLAN-2 worked, this need expend (the Measuring Time of 22 * 3ms) 66ms.
For " home base station ", " homebs list " keeps may Service Access Point or the Frequency Distribution of miscellaneous equipment (for example, other PC is when operation distribution synergistic function) and the record of address.Again, this tabulation of scanning before the conventional implementation of above-mentioned explanation.
Realization in the network of bluetooth (perhaps based on IEEE 802.15):
In several stages, carry out the establishment of connection between two bluetooth equipments.Phase I is to find another equipment, and this uses query script to carry out.The next stage is the addressing particular device, and this equipment has filtered from the equipment of all having replied inquiry and obtained.Use this particular device of paging addressing.After finishing paging, begin transmission.
Usually, bluetooth connects two kinds of forms of employing: be connected with the equipment with unknown address; And be connected with equipment with known address.
In first kind of situation, user's (more specifically, bluetooth equipment) wishes to find the equipment of (that is, scope is interior) in the zone, and is connected to the equipment of wanting then.First step is actual to be two steps: query script defines in standard; Be connected to all devices subsequently to obtain its SDP (service discovery protocol) record.In case carried out abovementioned steps, the clock skew that the user will use inquiry to return, the equipment (perhaps selecting equipment) of selection paging.On this aspect, the user will connect desirable equipment.
In second kind of situation, the user has been connected to desirable equipment in the past, although apart from last connection takes place may there be some times.In the end the clock skew of being stored is accurately under the situation, will carry out paging on correct sequence, and with in the very fast connection.Yet,, connect and will take a long time if clock skew is old.How long time is by paging and page scan mode decision.
Divide undercutting its structure module in these two sights, disclose some common element: inquiry and paging.
The polling cycle of acquiescence was defined as 10.24 seconds.Because search sequence changes during the inquiry response random back-off cycle (inquiry response random backoff period), some equipment may not replied in this cycle; This causes the reduction of reliability.In addition, have only half equipment hearing inquiry ID message, its query script that obviously slowed down arbitrarily preset time under the inquiry scan mode.When beginning process in the sequence of estimated clock in mistake, also can slow down paging.According to the paging configuration, paging meeting cost 1.28s or 2.56s are longer than the nominal time.
In an embodiment of the present invention, " home device " stores the Bluetooth address of the miscellaneous equipment that may use and the record of capacity of equipment (and alternatively, also having estimated clock).According to the position of storage " home device ", for example on the kneetop computer or on PDA, the device type in the tabulation can include, but is not limited to following one or more of: access point (for example, the AP of family, the AP of office, local coffee-house AP, or the like); Printer (for example, family, office, local photo store); Digital camera; Headset; Other PC or PDA; And cellular terminal.
Fig. 8 shows the example of the general purpose terminal 400 that is configured to realize the general embodiment of the present invention.In the example of Fig. 8, carry out most of signal processing at numeric field.
In the example of Fig. 8, two send/receive antenna 402a, b is connected to radio-frequency stage 404a separately, and b, radio-frequency stage 404a, b are via separately A/D and D/A converter 406a, and b receives input and provides signal to it from digital signal processor (DSP) 408.The numerical data I/O can provide on circuit 410.In other terminal, can use single antenna.
DSP408 will comprise one or more processor 408a and working storage 408b usually, and having data, address and control bus 412 are so that be connected to nonvolatile storage 414 with DSP, for example, the fast erasable RAM or the ROM of storage data and processor control routine.The control of processor control routine DSP408 provide termination function, and comprise that for example radiofrequency signal is handled code 414a, and mistake is handled code 414b, protocol stack code 414c, application layer code 416d and code for user interfaces 414e.For realizing that in embodiments of the present invention memory 414 can also store home device (tabulation) data 414g, home device data provision code 414f and optional terminal use historical data 414h.Processor 408a loads and realizes this code, so that function corresponding to be provided.
Be appreciated that by top description that embodiments of the invention make and exist the user usually under the situation in the place of visit that it is minimum to carry out the synchronously required time of the initial cell of cellular terminal.Other embodiments of the invention are beneficial in WPAN or the wlan system faster that equipment connects, especially when being connected to normally used equipment when utilizing the ability specific to this equipment.In the example of software-defined radio, other embodiments of the invention are beneficial to the exchange between pattern, and especially help to make such switching for user transparent.
Embodiments of the invention are applicable in all types of 2G and the 3G cellular communication system, and other has in the wireless system of static infrastructure, and wherein terminal is connected to access point, for example Wireless LAN system.In not having the network of static infrastructure and/or under the situation that equipment matches usually, there is the additional application of the embodiment of the invention.
Undoubtedly, those skilled in the art can expect many other effective optional modes.Be appreciated that to the invention is not restricted to illustrated embodiment, and be included under the situation of spirit and scope illustrated in the accessory claim of the present invention, those skilled in the art the modification that can expect.
Claims (22)
1. a controller that is used for mobile radio communication apparatus is used to control the foundation of the Radio Link between the described equipment and second Wireless Telecom Equipment, and described controller comprises:
The data storage that is used for the store home device data, described home device data comprises the data that are used to set up and belong to the wireless connections of second Wireless Telecom Equipment;
Be connected to the data processor of described data storage, it is configured to control described mobile radio communication apparatus, to attempt the described Radio Link of foundation and described ownership second Wireless Telecom Equipment; With
Data provide equipment, the described home device data that is used for providing at least one described home device to described data storage is so that storage, and wherein said home device data comprises according to the previous use of described mobile radio communication apparatus and the data of described ownership Wireless Telecom Equipment definite, that the described mobile radio communication apparatus of prediction may be connected to.
2. controller as claimed in claim 1, wherein said data storage also is set to store the use historical data of described mobile radio communication apparatus, it comprises specific to the data of second Wireless Telecom Equipment, and described mobile radio communication apparatus had before been set up Radio Link with this second Wireless Telecom Equipment, and wherein said data provide equipment to be set to determine described home device data so that storage according to described historical data.
3. controller as claimed in claim 1 or 2, wherein said Radio Link comprises local or personal area network's link, wherein said home device data comprises the data of a plurality of described home device, the data of each home device comprise the data of the classification that defines described equipment, and wherein said data processor is configured to receive the data of the described classification of described second equipment that is used for determining that described link will be established to, and respond the data of described reception, select to attempt in the described ownership Wireless Telecom Equipment setting up an ownership Wireless Telecom Equipment of described Radio Link with it.
4. controller as claimed in claim 3, wherein said home device data also comprises the address date of described home device.
5. controller as claimed in claim 4, wherein said home device data also comprise the estimating clock data of described home device.
6. as the described controller of claim 3,4 or 5, wherein said categorical data comprises the data that described home device are defined as fixed location device.
7. as any described controller in the claim 3 to 6, wherein said data processor is set to control described mobile device with before setting up link at trial and any other described second equipment, attempts setting up Radio Link with described ownership second equipment.
8. as any described controller in the claim 3 to 7, wherein said Radio Link comprises bluetooth standard or IEEE 802.15 operating such links, wherein, comprises inquiry phase and page phase according to the foundation of the described link of described standard; Wherein said data processor is set to control described mobile radio communication apparatus with when trial and described home device are set up described link, omits described inquiry phase.
9. controller as claimed in claim 1 or 2, wherein said Radio Link comprises the link of WLAN (wireless local area network), wherein said home device data comprises the address and/or the frequency data of described home device.
10. controller as claimed in claim 1 or 2, wherein said Radio Link comprises the link of cellular mobile communication networks, wherein said home device comprises the base station of this network, and wherein said home device data comprises the data of a plurality of described ownership Wireless Telecom Equipments.
11. controller as claimed in claim 10, wherein said home device data comprises the data of the base station of the described network of most recently used.
12. as claim 10 or 11 described controllers, wherein said home device data comprises the frequency data of described base station.
13. as claim 10 or 11 described controllers, wherein said home device data comprises the carrier wave and/or the code data of described base station.
14. controller as claimed in claim 2, wherein said Radio Link comprises the link of cellular mobile communication networks, wherein said home device comprises the base station of this network, and wherein said use data are included in the data that search of initial zone is determined the sub-district of the described network that selection is used afterwards.
15. controller as claimed in claim 2, wherein said Radio Link comprises the link of cellular mobile communication networks, wherein said home device comprises the base station of this network, and wherein said use data comprise the data of the sub-district of definite described network that uses when described mobile device is closed power supply.
16. controller as claimed in claim 1 or 2, wherein said mobile radio communication apparatus comprises a kind of equipment, this equipment comprise have be used for two heterogeneous networks on second equipment set up the radio frequency part of two optional operator schemes of Radio Link, and wherein said home device comprises the base station of one of described network.
17. a mobile radio communication apparatus wherein has as the described controller of any aforesaid right requirement.
18. a bearing medium that carries computer program code, described computer program code is realized as any described controller in the claim 1 to 16 when operation.
19. a method that is used to control the foundation of Radio Link between the mobile radio communication apparatus and second Wireless Telecom Equipment, this method comprises:
Provide at least one described home device data that belongs to second Wireless Telecom Equipment so that storage to described data storage, wherein, described home device data comprises according to the previous use of described mobile radio communication apparatus and the data of described ownership second Wireless Telecom Equipment definite, that the described mobile radio communication apparatus of prediction may be connected to; And
Control described mobile radio communication apparatus to attempt setting up described Radio Link with described ownership second Wireless Telecom Equipment.
20. method as claimed in claim 19 also comprises the use historical data of storing described mobile radio communication apparatus, comprises the data of second Wireless Telecom Equipment that before Radio Link has been established to specific to described mobile radio communication apparatus; And according to described use historical data determine home device data so as the storage.
21. as claim 19 or 20 described methods, wherein said Radio Link comprises local or personal area network's link, wherein said home device data comprises the data of a plurality of described home device, the data of each home device comprise the data of the classification that defines described equipment, and wherein said method also comprises: the data that receive the described classification of described second equipment be used for determining that described link will be established to, and the data that respond described reception, select to attempt in the described ownership Wireless Telecom Equipment setting up the ownership Wireless Telecom Equipment that described Radio Link arrives.
22. a bearing medium that carries the processor control routine, described processor control routine realizes as the described method of claim 19,20 or 21 when operation.
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| GB0323818A GB2407003B (en) | 2003-10-10 | 2003-10-10 | Wireless access systems |
| GB0323818.5 | 2003-10-10 |
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| US8169982B2 (en) | 2005-08-10 | 2012-05-01 | Qualcomm Incorporated | Method and apparatus for creating a fingerprint for a wireless network |
| US7706288B2 (en) * | 2005-09-27 | 2010-04-27 | Qualcomm Incorporated | RF channel switching in broadcast OFDM systems |
| US9554319B2 (en) | 2005-09-27 | 2017-01-24 | Qualcomm Incorporated | Channel handoff methods in wireless broadcast systems |
| US9049651B2 (en) | 2006-08-25 | 2015-06-02 | Qualcomm Incorporated | Selection of an access point in a communications system |
| CN101658009A (en) | 2007-04-05 | 2010-02-24 | 日本电气株式会社 | Time reference identification method |
| US20090098885A1 (en) * | 2007-10-12 | 2009-04-16 | Qualcomm Incorporated | System and method for storing information to locate a femto cell |
| US9253653B2 (en) | 2007-11-09 | 2016-02-02 | Qualcomm Incorporated | Access point configuration based on received access point signals |
| EP2073576A1 (en) * | 2007-12-21 | 2009-06-24 | Research in Motion Limited | A method and apparatus for scanning for cells in a wireless communications network |
| US8498638B2 (en) | 2007-12-21 | 2013-07-30 | Research In Motion Limited | Method and apparatus for scanning for cells in a wireless communications network |
| FI20080032A0 (en) | 2008-01-16 | 2008-01-16 | Joikusoft Oy Ltd | Smartphone as a WLAN access point |
| US9363745B2 (en) * | 2008-03-26 | 2016-06-07 | Srinivasan Balasubramanian | Device managed access point lists in wireless communications |
| US20090270092A1 (en) * | 2008-04-28 | 2009-10-29 | Research In Motion Limited | Method for Assisting a Wireless Device to Find Closed Subscriber Group Cells |
| FI20080345A0 (en) | 2008-05-09 | 2008-05-09 | Joikusoft Oy Ltd | Symbian S60 phone as 3G bandwidth combiner |
| WO2010058076A1 (en) * | 2008-11-18 | 2010-05-27 | Nokia Corporation | Cell selection in a wireless communication system |
| US8838096B2 (en) | 2009-05-29 | 2014-09-16 | Qualcomm Incorporated | Non-macro cell search integrated with macro-cellular RF carrier monitoring |
| US8391262B2 (en) | 2009-09-28 | 2013-03-05 | Huawei Technologies Co., Ltd. | WLAN communication device |
| US8923892B2 (en) | 2010-05-14 | 2014-12-30 | Qualcomm Incorporated | Method and apparatus for updating femtocell proximity information |
| US9480014B2 (en) * | 2012-06-01 | 2016-10-25 | Qualcomm Incorporated | Device configuration in a hybrid communication network |
| WO2014143041A1 (en) | 2013-03-15 | 2014-09-18 | Hewlett-Packard Development Company, L.P. | Cloud-based connectivity |
| JP2014143697A (en) * | 2014-02-27 | 2014-08-07 | Huawei Technologies Co Ltd | Scalable WLAN gateway |
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| US5946620A (en) * | 1997-07-25 | 1999-08-31 | Motorola, Inc. | Method for subscriber registration in a radio communication system |
| US6343070B1 (en) * | 1998-06-08 | 2002-01-29 | Ericcson Inc. | Methods for reducing channel acquisition times in a radiotelephone communications system and related mobile terminals |
| US6205334B1 (en) * | 1998-11-24 | 2001-03-20 | Ericsson Inc. | Accelerated scanning of cellular channels by cellular radiotelephones |
| JP2001309419A (en) * | 2000-04-21 | 2001-11-02 | Fujitsu Ltd | Position registration method for mobile communication system, and its mobile unit |
| KR100407571B1 (en) * | 2001-06-29 | 2003-12-01 | 삼성전자주식회사 | Method for using user data in a bluetooth device without user interface |
| GB2379134A (en) * | 2001-08-22 | 2003-02-26 | Ubinetics Ltd | Storage of base/transmitter station information |
| US7161923B2 (en) * | 2001-08-31 | 2007-01-09 | Sharp Laboratories Of America, Inc. | System and method for establishing bluetooth communications |
| WO2003092313A1 (en) * | 2002-04-26 | 2003-11-06 | Nokia Corporation | A method for speeding up synchronisation by having a search frequency list comprising a limited number of search frequencies |
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| GB2407003B (en) | 2006-08-09 |
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| GB0323818D0 (en) | 2003-11-12 |
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