CN1669346A - Support for packet dormancy in a wireless communication device - Google Patents
Support for packet dormancy in a wireless communication device Download PDFInfo
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- CN1669346A CN1669346A CNA028293347A CN02829334A CN1669346A CN 1669346 A CN1669346 A CN 1669346A CN A028293347 A CNA028293347 A CN A028293347A CN 02829334 A CN02829334 A CN 02829334A CN 1669346 A CN1669346 A CN 1669346A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0241—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where no transmission is received, e.g. out of range of the transmitter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The disclosure is directed to techniques for indicating the status of a connection with a base station to a TE2 device. An MT2 device employing the disclosed techniques may include a processor to identify a loss of a connection with the base station, and continue to indicate to a data terminal that the connection exists unless a session-ending event has occurred. Release of the connection due to packet dormancy, loss of the connection due to fade, and loss of the connection due to a hard handoff are not necessarily session-ending events. Session-ending events are events whose occurrence indicates that connection is not needed or will not be available. An MT2 device employing the disclosed techniques may emulate a modem. The processor may indicate that connection exists by asserting a data carrier detect (DCD) pin, and that the connection is lost by deasserting the DCD pin. An MT2 device employing the disclosed techniques may override any received AT&C command.
Description
Technical field
The present invention relates generally to radio communication, providing via the wireless data service of Wireless Telecom Equipment is provided.
Background
Data terminal (TE2 equipment) such as computer, PDA(Personal Digital Assistant) etc., can be connected to such as on the networks such as internet.TE2 equipment generally is connected on the network via dialing or network connection.Usually, these are connected to method on the network with TE2 equipment and relate to TE2 equipment and public phone exchanges network (PSTN) or be connected to physical connection between the network of internet more widely via one or more routers.
The user of TE2 also can wish can be connected to TE2 equipment on the internet when physical connection is unavailable.For this reason, become to the wireless connections of internet and more and more need.For example, the subscriber of wireless cellular telephony service can use wireless telecom gear (MT2 equipment) via the radio system TE2 equipment to be connected to the internet, described wireless telecom gear such as cellular radio, is combined in wireless pcmcia card, the PDA in the computer or is equipped with personal computer of wireless communication ability or the like.
Summary of the invention
The present invention is generally at the technology that can be indicated the connection status of wireless base station and TE2 equipment room by MT2 equipment being used to of realizing.Especially, the present invention is directed to the emulation modulator-demodulator but ignore the AT﹠amp that receives; Is the C order to energize according to the technology that is disclosed or to stop to energize (assert or deassert?) data carrier detection (DCD) pin.In this mode, MT2 equipment can make TE2 equipment keep existing communication session, for example, the PPP(Point-to-Point Protocol) session, even by losing provisionally via aerial communication channel and being connected of remote server or being released, for example, when MT2 equipment inertia, preserve the air broadcast resource.
In one embodiment, the present invention is directed to a kind of can be by the method that realizes such as Wireless Telecom Equipments such as MT2 equipment.Identify losing of wireless connections between Wireless Telecom Equipment and the base station.Yet the MT2 equipment of realizing this method continues to follow wireless connections to the data terminal indication of being coupled to Wireless Telecom Equipment and loses the back and have these wireless connections.
In another embodiment, the present invention is by at such as Wireless Telecom Equipments such as MT2 equipment.This Wireless Telecom Equipment comprises a transceiver, is used to provide with the wireless connections of base station and Wireless Telecom Equipment is connected to the FPDP of data terminal.This Wireless Telecom Equipment further comprises a processor, is used to discern losing of being connected with base station radio, and continue to the data terminal indication follow connect lose after these wireless connections exist.
In another embodiment, the present invention is directed to the computer-readable medium that comprises instruction.This instruction makes losing of wireless connections between programmable processor identification Wireless Telecom Equipment and the base station.This instruction further make processor continue to the data terminal indication that is connected to Wireless Telecom Equipment follow wireless connections lose after these wireless connections exist.
In another embodiment, the present invention is directed to Wireless Telecom Equipment such as MT2 equipment.This Wireless Telecom Equipment comprises the device of losing of wireless connections between this Wireless Telecom Equipment of sign and base station.This Wireless Telecom Equipment further comprise continuation to the data terminal indication of being coupled to Wireless Telecom Equipment follow wireless connections lose after the device that exists of these wireless connections.
The accompanying drawing summary
Fig. 1 is the structure chart that example wireless communications has been described.
Fig. 2 has illustrated the structure chart that connects via between the data terminal of Wireless Telecom Equipment and base station/mobile exchange station and IWF or the packet data serving node.
Fig. 3 is the structure chart that the example wireless communication device that is coupled to data terminal has been described.
Fig. 4 has illustrated the optionally method of connection status between data terminal indication Wireless Telecom Equipment and base station, for example by optionally energizing or the carrier wave that stops to energize detects pin, flow chart.
Fig. 5 is the flow chart that further specifies method shown in Fig. 4.
Embodiment
Technology as described herein can realize in MT2 equipment to ignore received AT﹠amp; C order is also optionally energized or the data carrier that stops to energize detects (DCD) pin thus, keeping communication session, even losing provisionally with being connected of remote server or be released via aerospace communication channels.For example, when MT2 equipment inertia, can discharge communication channel to preserve air resource.The MT2 equipment of the use technology that discloses can be by avoiding unnecessarily dismantling point-to-point protocol (PPP) session and rebuilding circulation and advantageously support the branch group dormancy in TE2 equipment.Dismounting PPP session causes losing of IP connection, and this can cause adverse influence to any operating application program.Divide group dormancy be supported in communication channel lose or be released during continuous IP connect.In certain embodiments, therefore technology as described herein can advantageously preserve in-flight time, avoids unnecessary power consumption and reduce the transfer of data time-delay, reduce wireless data session to user's overall cost and improve service quality.
Can use the serial network application software package that is loaded on the TE2 equipment TE2 equipment to be connected to the internet via MT2 equipment.When TE2 equipment is connected on the internet via dial-up connection, use can be connected to or merge to the modulator-demodulator in the TE2 equipment.This network software uses the running of " AT " order control modulator-demodulator.Described AT Command Set is being known in the art, and uses ASCII prefix " AT " definition, upper case or lower case all can, following any one in one group of other predefined code thereafter.For example, AT dial order, ATD or ATDT, the indication modulator-demodulator is dialled and is a telephone number.
Typically, modulator-demodulator is dialled and is a telephone number, and is connected to a long-range modulator-demodulator, and described remote modem is connected to the server of being safeguarded by an Internet service provider (ISP) successively directly or indirectly.Use the TE2 equipment of network software to follow and server negotiate PPP session.After consulting the PPP session, TE2 equipment can send the packet of constructing according to the agreement of consulting gained to server, and described server forms packet again frame and they are forwarded to the internet.In similar method, TE2 equipment receives grouping via the internet.
When modulator-demodulator is connected to remote modem, its DCD pin of can energizing, this is in connection such between a plurality of modulator-demodulators and the TE2 equipment one.The voltage that the DCD pin of energizing is usually directed on the DCD pin is set to height.This DCD pin was used for to being connected of TE2 equipment indication and remote modem, and was just energized as long as connect existence.If the connection to remote modem is lost, modulator-demodulator can be low with the voltage apparatus on the DCD pin, to losing that the indication of TE2 equipment connects by stopping the DCD pin of energizing.As long as the DCD pin is energized, network software is just kept the state of PPP session.
If network software typically is configured to the DCD pin when no longer being energized, dismounting PPP session, described DCD pin has no longer been indicated the connection of remote server to lose by energizing.TE2 equipment and network software can be by the AT﹠amp of AT Command Set; C order control modulator-demodulator is about the state of DCD pin.AT﹠amp; C1 order indication modulator-demodulator is set to low next to losing that the indication of TE2 equipment connects by the DCD pin.According to IS-707, with ﹠amp; The value of C is set to 1 and means that the state of DCD pin should follow the state of traffic channel, that is, when channel DCD pin when low is low, the DCD pin was for high when channel was high.AT﹠amp; C or AT﹠amp; The C0 order indication modulator-demodulator DCD pin of always energizing is energized at high level.
Usually, via the connection of radio system to the internet, MT2 equipment is connected on the TE2 equipment as expected in the present invention.As will be described, MT2 equipment is connected to IWF (IWF) or packet data serving node (PDSN) with TE2 equipment via the base station, and described IWF (IWF) or packet data serving node (PDSN) are the parts of wireless telecommunication system foundation structure.TE2 then can consult and set up the PPP session with IWF or PDSN, and sends and receive packet as top description about remote server.
MT2 equipment can be programmed with the emulation modulator-demodulator, and it receives and response AT order in described modulator-demodulator, and provides it will expect the feedback of reception from modulator-demodulator to TE2 equipment.This programming allow to use identical network software by dialing or wirelessly be connected to TE2 on the internet.For example, MT2 uses the DCD pin to be indicated to the state that the base station connects, and described DCD pin is the part that MT2 equipment is connected with the TE2 equipment room.
In order to preserve the employed capacity of MT2 equipment through aerospace communication channels, do not have packet data exchanged during, MT2 equipment or base station all can connect between them and discharge.This feature is become the branch group dormancy usually.Because signal fadeout or direct-cut operation, maybe when the beginning audio call, MT2 equipment also may temporarily be lost connection.If MT2 equipment is each losing that indication connects when such losing taken place, for example, in response to AT﹠amp; The C1 value is 1, can cause TE2 equipment to dismantle repeatedly and rebuild the PPP session.Because between the aerial thing of this process consumption, it can make the utilization ratio of system resource very low.In addition, can be remembered on user's the account between aerial sowing time, and this process can cause the transfer of data time-delay that may be noticed by the user, weaken user's experience.
As an example, if AT﹠amp; C or AT﹠amp; The C0 order indication MT2 equipment DCD pin of energizing all the time, TE2 equipment and user can not recognize the conversation end incident that taken place.The conversation end incident is that its generation indication does not need to connect or connect disabled incident.For example, advancing outside the data, services overlay area is a conversation end incident.According to this announcement, MT2 equipment can be configured to optionally energize or the DCD pin that stops to energize prevents TE2 equipment dismounting communication session, even via being lost provisionally aerial communication channel and being connected of remote server.
Fig. 1 is the structure chart of illustrated example wireless communication system 10.System 10 can comprise one or more Wireless Telecom Equipments 12 (MT2 equipment), is used for one or more data terminals 14 (TE2 equipment) to the connection such as internet 22 networks such as grade.TE2 14 can be personal computer, laptop computer, luggable computer, personal digital assistant (PDA), facsimile machine or the like.MT2 12 can be cellular radio, satellite radio telephone, pcmcia card or be combined in the radio modem in TE2 14 equipment, PDA of outfit wireless communication ability or the like.MT2 12 in the system 10 can be configured to support one or more communication standards, comprises based on code division multiple access (CDMA) technology, frequency division multiple access (FDMA) technology, time division multiple access (TDMA) technology or the like.
For example, one or more MT2 12 can be designed to support the CDMA standard, such as (1)
" TIA/EIA-95-B Mobile Station-Base Station Compatibility Standard forDual-Mode Wideband Spread Spectrum Cellular System " (IS-95 standard), (2) " TIA/EIA-98-C Recommended Minimum Standard for Dual-Mode WidebankSpread Spectrum Cellular Mobile Station " (IS-98 standard), (3) standard that provides of " third generation partnership program " association (3GPP), be included in one group of document, comprise document number 3G TS25.211,3G TS 25.212,3G TS 25.213 and 3G TS 25.214 (W-CDMA standard), (4) standard that provides of " third generation partnership program 2 " association (3GPP2), be included in one group of document, comprise " C.S0002-A Physical Layer Standard for cdma2000 Spread SpectrumSystems ", " C.S0005-A Upper Layer (Layer 3) Signaling Standard forcdma2000 Spread Spectrum Systems " and " C.S0024 cdma2000 High Rate PacketData Air Interface Specification (cdma2000 standard); (5) be embodied in the HDR system of TIA/EIA-IS-856; " CDMA2000 High Rate Packet Data Air InterfaceSpecification ", or other standard.In addition, MT2 12 can be designed to support other standard, such as GSM standard or relevant criterion, for example, DCS1800 and PCS1900 standard.Gsm system uses the combination of FDMA and TDMA modulation technique.MT2 12 also can support other FDMA and TDMA standard.
As described in Figure 1, base station/mobile exchange station (BS/MCS) 16 can provide wireless connections for MT2 12, in order to be connected to the foundation structure of wireless communication system 10.As known in the art, BS/MSC16 can comprise base station transceiver (BTS) (not shown), base station controller (BSC) (not shown) and mobile switching centre (MSC) (not shown), described BTS can comprise wireless transmitter and wirelessly be connected with described base station transceiver (BTS) with receiver circuit and MT2 12, described BSC can be coupled to the running that a plurality of BTS went up and controlled these BTS, and described mobile switching centre (MSC) routes the call to and from BSC and will be from the call forward of BSC to public switched telephone network (PSTN) (not shown) or another MSC.
The running of IWF 18 or PDSN 20 is being known in the art.Usually, IWF 18 or PDSN 20 receive via MT2 12 and BS/MSC 16 and form the packet of frame from TE2 14 according to PPP, and this packet is formed frame again be used for via the transmission of internet 22 to the remote equipment (not shown), for example, according to the tcp/ip communication agreement.IWF 18 or PDSN 20 receive packet via internet 22 in a like fashion, and their repackings are used for via the transmission of wireless network modem interface to TE2.IWF 18 or PDSN 20 also can be for packet provide buffer, to compensate by the transmission rate of Radio Link and by the difference between the transmission rate of internet 22 even road.
PPP is the known agreement that is used to provide long-range access.PPP is provided at the standard method of transmission of data packets serially between two terminal peer-to-peers.The end that PPP is included in ppp link forms frame in order to transmission with packet, and receives packet and remove the method for this frame structure at the other end of ppp link.
Fig. 2 is the block diagram that explanation connects between TE2 14 and IWF 18 or PDSN 20 via MT2 12 and BS/BCS 16.Be published in February, 1998, the TIA/EIA IS-707.5 that is entitled as " DATA SERVICE OPTIONS FOR WIDEBANDSPREAD SPECTRUM SYSTEMS:PACKET DATA SERVICES, " has defined the requirement of supporting the packet data transmission ability in TIA/EIA IS-95 and IS-2000 broadband Zhan Pin system.IS-707.5 also provide be used between TE2 14 and the MT2 12, the requirement of communication protocol between MT2 12 and the BS/MSC 16 and on the link between BS/MSC 16 and IWF 18 or the PDSN 20.
Indicated as Fig. 2, the link between TE2 14 and the MT2 12 is being known in the art, and is called as the Rm interface in the IS-707.5 standard.Similarly, the link between MT2 12 and the BS/MSC 16 is known, and is mentioned as Um Interface, and the link between BS/MSC 16 and IWF 18 or the PDSN 20 is known, and is called as L or A interface respectively.The Rm link can adopt the form of interfaces such as RS-232, USB (USB), bluetooth, Infrared Data Association (IrDA) link.The Um air interface can meet IS-95 or CDMA-2000.L or A interface can meet IS-95 or TIA-2001-B respectively.
Consistent with IS-707.5, TE2 14 can set up the PPP session with IWF 18 or PDSN 20, and described session will allow TE2 14 that packet is sent to internet 22 or the 22 reception packets from the internet.TE2 14 can be by setting up PPP session with IWF 18 or PDSN 20 with MT2 12 exchange configuration packet, described MT2 12 successively with IWF 18 or PDSN 20 exchange configuration packet.Configuration packet is exchanged in order to be configured in the protocol module of running among TE2 14, MT2 12 and IWF 18 or the PDSN 20, such as link layer PPP module and network layer IP module.When MT2 12Rm and Um Interface association height had been finished, the packet meeting sent between TE2 14 and IWF 18 or PDSN 20 via Rm, Um and L/A interface.
The PPP session is generally set up TE2 14 receives the indication of the wireless connections that acquire BS/MSC 16 from MT2 12 after.Be published in the TIA/EIA IS-707.4 that is entitled as " DATA SERVICE OPTIONS FOR SPEADSPECTRUM SYSTEMS:ASYNC DATA AND FAX SERVICES " in March, 1999, regulation MT2 12 can be programmed to the emulation modulator-demodulator, on the Rm interface, receive AT order, response AT order with this, and on the Rm interface, provide it will expect the feedback that receives from modulator-demodulator to TE2 14 from TE2 14.Described AT Command Set is being known in the art, and uses ASCII prefix " AT " definition, upper case or lower case all can, following any one in one group of other predefined coding thereafter.
For example, MT2 12 can receive dialing order, ATD from TE2 14 on the Rm interface.In order to respond this dialing order, MT2 12 can be connected to BS/MSC 16 and provide one or more indications about this connection to TE2 14.In order to indicate this connection, MT2 12 can return " CONNECT " code to TE2 via the Rm interface, and/or can the following DCD pin (not shown) of energizing with describing in detail.The physical layer of this indication notice TE2 14Um and L interface (in the IS-95 network) is set up, and it will begin to consult other protocol layer of PPP session.TE2 14 can send packet during the PPP session of having set up.22 is that receive and abide by reverse path to TE2 14 by the meeting in group that IWF 18 or PDSN 20 transmits from the internet.
Fig. 3 is the structure chart that the exemplary MT2 12 of TE2 14 is coupled in explanation.MT2 12 can comprise the processor 30 of common its running of control.The grouping that processor 30 can be handled the AT order and receive from TE2 14 and IWF 18 or PDSN 20.For example, processor 30 can be implemented as microprocessor.Processor 30 can be carried out the order that is stored in the memory 32, described memory comprises the medium of any computer-readable suitable store instruction, comprise random-access memory (ram), read-only memory (ROM), nonvolatile RAM (NVRAM), eeprom (EEPROM), flash memory, perhaps any medium that other can be used to store information needed and can be read by processor 30.
In the embodiment of the MT2 described in Fig. 3 12, processor 30 is coupled to transceiver 34.Processor 30 is set up wireless connections and is communicated by letter with BS/MSC via transceiver 34.Transceiver 34 is received the signal that sends from processor 30, and is the RF signal with these conversion of signals, is used for sending BS/MSC16 to via wireless connections.Similarly, transceiver 34 receives RF signal from BS/MSC 16 via wireless connections, and before they are passed to processor 30 these RF conversion of signals is become digital signal.As an example, these signals comprise beep-page message, configuration packet or packet.
According to radio link protocol (RLP) and IS-95 or I-2000 agreement, they are the physical layer protocol that are used for Um Interface by IS-707.5 regulation, signal processing and all can finish on MT2 12 and BS/MSC 16 via the signal transmission of wireless connections.
MT2 12 also may comprise a user interface 36.The user can use user interface 36 to place Circuit-switched audio call.User interface 36 can comprise loud speaker, display and the keyboard that is used for dialing the number.
As what describe among Fig. 3, TE2 14 can comprise processor 42.Processor 42 can be carried out the instruction that is stored in the memory 44.These instructions can comprise the serial network application software package.Network application can make processor 42 send the AT Modem commands to MT2 12, and response is from the feedback of MT2 12 receptions.As mentioned above, network application also can make processor 42 set up the PPP session via MT2 12 and IWF 18 or PDSN 20.As mentioned above, network application also can further make processor 42 via MT2 12 and BS/MSC16 and IWF 18 or PDSN 20 exchange data packets.User and network software and be stored in the memory 44 other and use interactive action come the operation of processor controls 42 by user interface 46.User interface 46 can comprise display, keyboard and such as in the pointing apparatus such as mouse any one.
In the example that Fig. 3 describes, MT2 12 is coupled to TE2 14 via FPDP 38,40 and data link 48.Specifically, processor 30 is coupled to the processor 42 of TE214 through FPDP 38,40 and data link 48.In certain embodiments, the grouping that sends between MT2 12 and TE2 14 can be sent serially.For example, FPDP 38,40 and data link 52 can be the EIA-232 compatibilities, and send grouping according to the EIA-232 agreement, and described EIA-232 agreement is the physical layer protocol that is used for Um Interface by the IS-707.5 regulation.
As an example, the FPDP 38 of MT2 12 can be a serial data port.As an example, the FPDP 40 of TE2 14 also can be serial data port, USB (USB) port, perhaps PCMCIA slot.Data link 48 can be the cable that has suitable connector, perhaps connector of Shi Yonging and pcmcia card.As selection, the element of these MT2 12 can be embedded in a pcmcia card, and this card can be inserted in the PCMCIA slot of FPDP 40 of TE2 14.But these arrangement can be eliminated the needs to data link 48.
As above-mentioned, MT2 12 can come the emulation modulator-demodulator by the indication to the connection between BS/MSC16 and TE2 14 is provided.Especially, this indication can detect (DCD) pin (not shown) via data carrier and provide, and the DCD pin can be the part of FPDP 38 and the corresponding pin (not shown) that is connected to FPDP 40 by data link 48.
The DCD pin all is in two states one in any given time, corresponds to first and second voltage levels that are added on the pin, and is promptly high or low.Processor 30 can be added to this pin of energizing on the DCD pin by the voltage with first level, for example, pin is set for high.Processor 30 can be added to by the voltage with second level and stop to energize this pin on the DCD pin, and it is low for example resetting pin.In other words, processor 30 can be by turning back to pin pin by the DCD pin that stops to energize of the voltage level before being energized.
When being established with the BS/MSC16 wireless connections, the processor 30 DCD pin of can energizing.The DCD pin of energizing is used to be established to TE2 14 indication connections or data channel, and TE2 14 can begin and MT2 12 and IWF18 or PDSN20 negotiation PPP session.As long as the connection between MT2 12 and the BS/MSC16 exists, the DCD pin will keep the state of being energized, and indicate its grouping that can still transmit and receive data to TE2 14.The DCD pin if processor 30 stops to energize, this stops to energize connecting to TE2 14 indications and loses, and TE2 14 dismantles usually on this aspect, promptly stops the PPP session.
In order to preserve the capacity that MT2 12 uses through aerospace communication channels, TE2 14 and IWF18 or PDSN20 do not exchange grouping during in, MT2 12 or BS/MSC16 can discharge the connection between them.This feature is commonly called the branch group dormancy.For example, MT2 and/or BS/MSC 16 can keep a timer, are used for beginning to count down from preset value when each reception or transmission grouping.If such timer meter of being kept by BS/MSC 16 is full, BS/MSC16 will send a message to MT2 12 so, indicate it will discharge connection, discharge this connection then.If such timer meter of being kept by MT2 12 is full, MT2 12 will send release message to BS/MSC 16 so, and then BS/MSC 16 will discharge this connection.MT2 equipment also can be owing to signal fadeout or because direct-cut operation is lost connection provisionally, this since signal fadeout or direct-cut operation cause, understand generation and lose connection provisionally when MT2 12 advances outside having set up the overlay area of the BS/MSC 16 that is connected with it.
Because the connection that divides group dormancy to cause discharges, since the connection that decline causes lose with because being connected of causing of direct-cut operation loses not is to be necessary conversation end incident.In fact, when these non-conversation end incidents took place, general situation was maybe can use when the needs soon via the connection meeting of air traffic channel.MT2 12 needs to reconnect BS/MSC 16 at the most and consults the Um Interface agreement again.On the other hand, the conversation end incident is to indicate not need to connect or connect disabled incident.For example, advance in addition, that is, enter the zone of not supporting data, services, or the session of termination dial-up networking is the conversation end incident on TE2 in the data, services overlay area.
If processor 30 connects the DCD pin that stops to energize when losing in each generation, for example, response AT﹠amp; C1 order can cause TE2 14 repeatedly to dismantle the PPP session, rebuilds the PPP session and at least the Rm interface requirement is consulted again.This process can consume the airtime of remembering on user's account, and causes being used for visible data transfer delay, has run counter to the purpose of dividing group dormancy.In addition, dismounting and the reconstruction to PPP session repeatability can be created in undesirable processing expenditure and extra power consumption among MT2 12, TE2 14 and the BS/MSC 16.If the processor among the command M T2 12 30 no matter always channel status is energized the DCD pin, for example, by using AT﹠amp; C or AT﹠amp; The C0 order, TE2 14 and user not can be appreciated that, and rational conversation end incident has taken place, such as advancing outside the data, services overlay area.
Fig. 4 is the method that has illustrated optionally to TE2 14 indication MT2 12 and BS/MCS 16 connection status, for example by optionally energizing or the carrier wave that stops to energize detects pin, flow chart.Usually, the MT2 12 of the method shown in the use will or lose regardless of the temporary release that connects through air traffic channel, continue 14 indications and 16 existence that are connected of BS/MCS to TE2, unless genuine conversation end incident takes place.Method shown in Figure 4 can be by avoiding unnecessarily dismantling the PPP session and rebuilding circulation and advantageously support the branch group dormancy in TE2 14.Method shown in Figure 4 can therefore preserve in-flight time and reduce the transfer of data time-delay, reduce undesirable processing expenditure and power consumption, the reduction wireless data session is to user's cost and improve service quality.
As shown in Figure 4, MT2 12 can receive the dialing order from TE2 14 (50) via the Rm interface, orders such as ATD.Especially, the processor 30 of MT2 12 can receive the dialing order via FPDP 38,40 and data link 48.Processor 30 also can receive other AT order from TE2 14 at this moment, such as AT﹠amp; The C order.
In order to respond the dialing order that receives, processor 30 can be set up and being connected of BS/MSC 16 via transceiver 34 (52).Processor 30 can be set up and being connected of BS/MSC 16 to BS/MSC by send start message via transceiver 34.These start message can and need to the connection of IWF 28 or PDSN 20 to BS/MSC 16 indication request data calls.
Set up with being connected of BS/MSC 16 after, TE2 14 is given in the indication that processor 30 can provide connection to set up (54).Processor 30 can connect by the DCD pin indication of energizing be set up, and the part that described DCD pin can be a FPDP 38 also is connected to the respective pin (not shown) of TE2 14 FPDP 40 by data link 48.Processor 30 can be added to the DCD pin of energizing on the pin by the voltage with first level.The processor 30 DCD pin of energizing for example, maintains first voltage level with the DCD pin, confirms to have taken place conversation end incident as described below until its.
Energizing of 30 pairs of DCD pins of processor can it can begin and MT2 12 and IWF18 or the aforesaid PPP session of PDSN 20 negotiations to TE2 14 indications.When TE2 14, MT2 12 and IWF 18 or PDSN20 have successfully finished negotiation, the PPP session between TE2 14 and IWF 18 or the PDSN 20 just is established (56).TE2 14 and MT2 12 and IWF 18 or PDSN 20 then can use the ppp protocol of above-mentioned (58) via MT2 12 exchange data packets.
If processor 30 is determined to BS/MSC 16 on some point connection is lost or is released (60), processor 30 will continue to energize the DCD pin, unless and determine to have taken place conversation end incident (62) until processor 30.In addition, the conversation end incident be indicate do not need this connection maybe this connection with disabled incident.The conversation end incident can be to receive from the session of TE2 14, IWF 18 or PDSN 20 to stop request, receive from TE2 14 and show the indication that no longer is ready for sending or receives data, receive conversation end AT order from TE2 14, detect the user and attempt to be audio call, can not to reconnect BS/MSC 16 and to set up data session via 12 groups of MT2.If the conversation end incident does not cause losing of connection or do not take place when connection is lost, processor 30 can reconnect to BS/MSC 16, and data reconstruction session (63) also continues to send grouped data (58) between TE2 14 and IWF 18 or PDSN 20.If the conversation end incident has taken place, the processor 30 DCD pin (64) that can stop to energize, and TE2 can dismantle PPP session (66).
Fig. 5 is the flow chart that further specifies method shown in Fig. 4.Especially, Fig. 5 has illustrated whether definite conversation end incident the illustrative methods of (62) takes place, and identifies a plurality of possible conversation end incidents.The processor 30 of MT2 12 can be made this affirmation after (60) are lost or discharged in the connection that identifies BS/MSC 16, and continues to determine whether to have taken place the conversation end incident in during connection is d/d.
For example, the first meeting of processor 30 confirms that the PPP whether it receives from TE2 14, IWF 18 or PDSN 20 stops request before connection is lost, or detects the PPP that is received from TE2 14 stop request (70) after connection is lost.Receive PPP stop request to processor 30 indication IWF 18 or PDSN 20 no longer to packet data service can with or TE2 14 no longer need packet data service.Therefore, receive PPP and stop asking to be taken as the conversation end incident.If processor 30 determines that it receives PPP and stops request, it can pass through, and the DCD pin (64) that for example stops to energize is to TE2 14 indications and losing that BS/MSC 16 is connected.
Processor 30 can determine also whether it continues to receive its be ready to transmit and receive data indication of (72) from TE2 14.TE2 14 can, as it on being connected to modulator-demodulator the time do, the data terminal of energizing when it is ready to transmit and receive data is prepared (DTR) pin.Data terminal is prepared (DTR) pin and can be positioned in the FPDP 40, and can be coupled on the FPDP 38 by via data link 48.Processor 30 can be with TE2 stopping to energize and be interpreted as the indication that TE2 14 no longer needs packet data service the DTR pin.Therefore, in certain embodiments, the DTR pin that stops to energize can be interpreted as the conversation end incident.If processor 30 detect by 14 pairs of DTR pins of TE2 stop to energize, its can be indicated and losing that BS/MSC 16 is connected by the DCD pin that stops to energize.
Processor 30 can determine also whether it receives conversation end AT order (74) from TE2 14.For example, processor 30 can receive ath command from TE2 14, ATH.It is the indication that TE2 14 no longer needs packet data service that processor 30 can will receive the ATH command interpretation.Therefore, receiving the ATH order is the conversation end incident.If processor 30 receives the order from the ATH of TE2 14, the processor 30 DCD pin that stops to energize is indicated lose (64) that are connected with BS/MSC 16.
Processor 30 can determine also whether the user attempts to use MT2 12 initial audio calls (76).Processor 30 can be maked decision based on the signal that is received from user interface 36.Processor 30 can be interpreted as the user to such trial, and TE2 14 thus, no longer need the indication of packet data service.Therefore, the trial of initial audio call can be interpreted as the conversation end incident.If processor 30 detects the trial of placing audio call, processor 30 can be indicated lose (64) that are connected with BS/MSC by the DCD pin that stops to energize.Yet as selection, processor 30 can be programmed to continue to continue the DCD pin of energizing during audio call, makes the user make audio call in the process of packet data call by minute group dormancy.
In some cases, processor 30 can be appreciated that losing of connection be since divide that group dormancy causes release caused.Processor 30 can by determine whether the timer of safeguarding by it out of date or it whether receive from BS/MSC 16 whether losing that release message determines to connect is because branch group dormancy (78).As an example, divide the losing of group dormancy can be caused by signal fadeout or direct-cut operation no thanks to, it be normally provisional and just recover soon after channel loss.
Not that processor 30 can be attempted to reconnect to BS/MSC 16 and rebuild packet data call (80) owing to divide group dormancy if lose after determining that above-mentioned conversation end incident does not take place.Processor 30 can by send start message to BS/MSC 16 attempt to reconnect/initial again.Start message can be indicated the needs that are connected with BS/MCS16, and is connected the needs that are used for packet data service with IWF 18 or PDSN 20.
If reconnect successfully, processor 30 can be consulted the Um Interface agreement and begin to send packet (58) again between TE2 14 and IWF18 or PDSN 20.Processor 30 can will be received from TE2 14 during connection is unavailable packet cushions in memory 32.IWF 18 or PDSN 20 also can be for later transmission buffered data groupings to TE2 14 during connection is unavailable.Processor 30 and IWF 18 or PDSN 20 are stored in the configuration information of Um Interface in the memory.
Reconnecting can be unsuccessful.For example, after the trial of pre-determined number, processor 30 can successfully not be connected to BS/MSC 16.As an example, this BS/MSC 16 of can not reconnecting can be caused by telephone traffic on the broadcast channel or advancing outside the overlay area.Processor 30 can determine that also it can not rebuild packet data call.As an example, processor 30 can receive the message from BS/MSC 16, and the designation data service is unavailable.Can receive this message and be because MT2 12 is switched to and not support to divide into groups or the BS/MSC 16 of data, services or do not possess the abilities of handling this calling because IWF 18 or PDSN 20 are current.
Processor 30 can be interpreted as the no longer available indication of packet data service with this can not reconnecting.Therefore, can not reconnect and to be defined as the conversation end incident.If processor 30 can not reconnect BS/MSC 16, processor 30 can be indicated lose (64) that are connected with BS/MSC 16 by the DCD pin that stops to energize.
If processor 30 is determined to connect loses is owing to divide group dormancy, processor 30 can be waited for to attempt reconnecting to BS/MSC 16 and receive packet (82) until it from TE2 14.Processor 30 is dividing into groups to determine whether to have taken place conversation end incident (70-76) until receiving packet with continuing between rest period.When receiving packet, processor 30 will be attempted reconnecting to BS/MSC 16 as mentioned above.
Claims (15)
1. method comprises:
Identify losing of wireless connections between Wireless Telecom Equipment and base station; And
To the data terminal indication of being coupled to Wireless Telecom Equipment follow wireless connections lose after these wireless connections exist.
2. the method for claim 1 is characterized in that, losing of wireless connections comprises the release of Wireless Telecom Equipment to wireless connections.
3. the method for claim 1 comprises that further there are wireless connections in continuation to the data terminal indication, unless the conversation end incident has taken place.
4. method as claimed in claim 3 is characterized in that, indication connect to exist and to comprise that first voltage is added to data carrier to be detected on the pin, and indicates wireless losing to comprise second voltage is added to data carrier and detect on the pin.
5. method as claimed in claim 3 further comprises:
Determine to have taken place the conversation end incident; And
Determine to described the losing of data terminal indication based on described.
6. method as claimed in claim 5 is characterized in that, determines to have taken place the conversation end incident and comprises that receiving session from data terminal stops request, and request terminates in the communication session in the described wireless connections.
7. method as claimed in claim 5 is characterized in that, determines to have taken place the conversation end incident and comprises that receiving session from remote server stops request, and request terminates in the described wireless connections and communication session Wireless Telecom Equipment.
8. method as claimed in claim 5 is characterized in that, determines to have taken place the conversation end incident and comprises the unripe indication that transmits and receive data of reception data terminal.
9. method as claimed in claim 5 is characterized in that, determines to have taken place the conversation end incident and comprises that receiving conversation end AT from data terminal orders.
10. method as claimed in claim 5 is characterized in that, determines to have taken place the conversation end incident and comprises and determine and will initiate circuit-switched call via Wireless Telecom Equipment by the user.
11. method as claimed in claim 5 is characterized in that, determines that the conversation end incident has taken place to be comprised:
-when wireless connections are lost, attempt reconnecting to the base station; And
Identify and to reconnect.
12. method as claimed in claim 11 is characterized in that, identifies to reconnect to comprise the disabled indication of reception data, services.
13. a Wireless Telecom Equipment is used for enforcement of rights and requires any one method of 1-12, described equipment comprises:
One transceiver is used to provide the wireless connections with the base station;
One FPDP is used for Wireless Telecom Equipment is coupled to data terminal; And
One processor, be used to discern with the wireless connections of base station lose and continue to the data terminal indication follow wireless connections lose after these wireless connections exist.
14. a computer-readable medium comprises that the processor enforcement of rights requires the instruction of the method for any one among the 1-12.
15. a Wireless Telecom Equipment is used for enforcement of rights and requires any one method of 1-12, described equipment comprises:
Be used to discern the device that wireless connections are lost between Wireless Telecom Equipment and base station;
Be used to continue the device that this radio communication connection exists after losing of wireless connections followed in the data terminal indication that is connected to Wireless Telecom Equipment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38712302P | 2002-06-07 | 2002-06-07 | |
| US60/387,123 | 2002-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1669346A true CN1669346A (en) | 2005-09-14 |
| CN100401813C CN100401813C (en) | 2008-07-09 |
Family
ID=29736265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028293347A Expired - Fee Related CN100401813C (en) | 2002-06-07 | 2002-07-09 | Support for packet dormancy in a wireless communication device |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN100401813C (en) |
| AU (1) | AU2002368003A1 (en) |
| HK (1) | HK1079946A1 (en) |
| MX (1) | MXPA04012219A (en) |
| WO (1) | WO2003105510A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123453A (en) * | 2011-03-02 | 2011-07-13 | 厦门雅迅网络股份有限公司 | Terminal switching method for voice short message with priority in code division multiple access (CDMA) network data transmission process |
| CN102196483A (en) * | 2010-03-03 | 2011-09-21 | 英华达（南京）科技有限公司 | Simulation testing system and simulation testing method for mobile communication device |
| CN101102334B (en) * | 2007-08-03 | 2012-01-11 | 中兴通讯股份有限公司 | Method and device for establishing information transmission between terminal device and mobile terminal |
| WO2012113178A1 (en) * | 2011-02-25 | 2012-08-30 | 中兴通讯股份有限公司 | Method and apparatus for detecting connection loss of terminal |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8477710B2 (en) | 2004-07-21 | 2013-07-02 | Qualcomm Incorporated | Method of providing a gap indication during a sticky assignment |
| US8432803B2 (en) | 2004-07-21 | 2013-04-30 | Qualcomm Incorporated | Method of providing a gap indication during a sticky assignment |
| US8891349B2 (en) | 2004-07-23 | 2014-11-18 | Qualcomm Incorporated | Method of optimizing portions of a frame |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US611866A (en) * | 1898-10-04 | Apparatus for ascertaining temperature of vaults | ||
| US4697281A (en) * | 1986-03-14 | 1987-09-29 | Spectrum Cellular Communications Corporation, Inc. | Cellular telephone data communication system and method |
| US6088600A (en) * | 1996-03-12 | 2000-07-11 | Paradyne Corporation | Discontinuous transmission of circuit-switched analog cellular data |
| KR100260516B1 (en) * | 1997-04-01 | 2000-07-01 | 정선종 | Originating call and terminating call service method in asynchronous communication cdma cellular network |
| US6424639B1 (en) * | 1999-12-22 | 2002-07-23 | Qualcomm, Incorporated | Notifying a mobile terminal device of a change in point of attachment to an IP internetwork to facilitate mobility |
-
2002
- 2002-07-09 CN CNB028293347A patent/CN100401813C/en not_active Expired - Fee Related
- 2002-07-09 MX MXPA04012219A patent/MXPA04012219A/en not_active Application Discontinuation
- 2002-07-09 WO PCT/US2002/021783 patent/WO2003105510A1/en active Search and Examination
- 2002-07-09 AU AU2002368003A patent/AU2002368003A1/en not_active Abandoned
-
2005
- 2005-12-22 HK HK05111863.6A patent/HK1079946A1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101102334B (en) * | 2007-08-03 | 2012-01-11 | 中兴通讯股份有限公司 | Method and device for establishing information transmission between terminal device and mobile terminal |
| CN102196483A (en) * | 2010-03-03 | 2011-09-21 | 英华达（南京）科技有限公司 | Simulation testing system and simulation testing method for mobile communication device |
| WO2012113178A1 (en) * | 2011-02-25 | 2012-08-30 | 中兴通讯股份有限公司 | Method and apparatus for detecting connection loss of terminal |
| CN102123453A (en) * | 2011-03-02 | 2011-07-13 | 厦门雅迅网络股份有限公司 | Terminal switching method for voice short message with priority in code division multiple access (CDMA) network data transmission process |
| CN102123453B (en) * | 2011-03-02 | 2014-02-26 | 厦门雅迅网络股份有限公司 | Terminal switching method for voice short message with priority in code division multiple access (CDMA) network data transmission process |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002368003A1 (en) | 2003-12-22 |
| CN100401813C (en) | 2008-07-09 |
| WO2003105510A1 (en) | 2003-12-18 |
| HK1079946A1 (en) | 2006-04-13 |
| MXPA04012219A (en) | 2005-04-08 |
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