CN101595646A - Low duty cycle device protocol - Google Patents
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Abstract
Theme disclosed herein relates to the system and method that is used for setting up between low duty cycle device and other equipment by cordless communication network communication.In a kind of specific implementation, this low duty cycle device can with the synchronous situation of transmission of messages under revive from resting state.
Description
The cross reference of related application
The application requires in the U.S. Provisional Patent Application No.60/887 of submission on January 31st, 2007 according to 35USC § 119 (e), 536 and the U.S. Provisional Patent Application No.60/886 that submits on January 26th, 2007,904 benefit of priority, these two pieces of provisional application are included in this by quoting thus, and the application is the U.S. Patent application No.11/766 that submits on June 20th, 2007,068 part continues and requires its benefit of priority, and this application is included in this by quoting thus.
Background
The field:
Theme disclosed herein relates to communication system and the network that comprises low duty cycle device.
Information:
Telemonitoring is carried out in operation can be comprised and use the follow-up work state information and send work state information the low-power of the long-range messaging device that is located to and/or by battery-operated wireless telecom gear.At this, for example, such operating state can be used as short message and transmits via radiofrequency signal.The telecommunication apparatus of employing Power Cutback technology is under the situation of sleep pattern with the saving power of battery at this telecommunication apparatus perhaps can not communicate by letter with the long-range messaging device that is located.
The accompanying drawing summary
To be described with reference to the following drawings indefiniteness and non-exhaustive feature, wherein identical Reference numeral runs through the identical part of each accompanying drawing indication.
Fig. 1 is the schematic diagram of the communication network of communicating by letter with one or more communication terminals according to being suitable on the one hand.
Fig. 2 is the schematic diagram of diagram according to a kind of communication protocol stack of realizing.
Fig. 3 is the diagrammatic sketch of diagram according to call-flow on the one hand.
Fig. 4 is the diagrammatic sketch of diagram basis call-flow on the other hand.
Fig. 5 be according to a kind of realize can with the schematic diagram of the equipment of wireless communication.
Fig. 6 is that diagram is carried out synchronous diagrammatic sketch at the message that transmits to the scheduling that equipment is revived from resting state according to specific implementation in wireless communication link.
General introduction
In a kind of specific implementation, first equipment is suitable for reviving so that can communicate by letter with cordless communication network from resting state in day part.By synchronous with this period, second equipment can be dispatched during this period in cordless communication network to the first device transmission information.Yet should be understood that this only is a kind of example implementation, and theme required for protection is not defined to this specific implementation.
Describe in detail
" example ", " feature ", " example " or " feature " that run through the citation of this specification mean in conjunction with this feature and/or the described special characteristic of example, structure or characteristic and are included at least one feature and/or example of theme required for protection.Thus, to run through the appearance throughout of this specification be not all to quote from same feature and/or example for phrase " in one example ", " example ", " in a feature " or " feature ".In addition, these special characteristics, structure or characteristic can be made up in one or more examples and/or feature.
The method collection of Miao Shuing can be realized by various means herein, and this depends on the application according to special characteristic and/or example.For example, such method collection can be realized in hardware, firmware, software and/or its combination.In hardware is realized, for example, processing unit can be at one or more application-specific integrated circuit (ASIC)s (ASIC), digital signal processor (DSP), digital signal processor spare (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, electronic device, be designed to carry out realization in other units of function described herein and/or its combination.
Position described herein is determined and/or estimation technique can be used for various cordless communication networks, such as wireless wide area network (WWAN), wireless lan (wlan), wireless personal-area network (WPAN), or the like.Term " network " and " system " can be used in this article interchangeably.WWAN can comprise for example code division multiple access (CDMA) network, time division multiple access (TDMA) network, frequency division multiple access (FDMA) network, OFDM (OFDMA) network, single-carrier frequency division multiple access (SC-FDMA) network, or the like.Cdma network can be realized one or more radio access technologies (RAT), and such as cdma2000, broadband-CDMA (W-CDMA) etc., this has only enumerated a few radiotechnics.At this, cdma2000 for example can comprise the technology that realizes according to IS-95, IS-2000 and IS-856 standard.The TDMA network can be realized global system for mobile communications (GSM), digital advanced mobile phone system (D-AMPS) or other certain RAT.GSM and W-CDMA describe in the document from " third generation partnership projects " alliance (3GPP) by name.Cdma2000 describes in the document from " third generation partnership projects 2 " alliance (3GPP2) by name.3GPP and 3GPP2 document are that the public is retrievable.For example, WLAN can comprise IEEE 802.11x network, and WPAN can comprise blueteeth network, IEEE 802.15x.These location technologies described herein also can be used for any combination of WWAN, WLAN and/or WPAN.
According to an example, equipment and/or system can estimate its position based on the signal that is received from each SV at least in part.Particularly, such equipment and/or system can obtain to comprise each SV that is associated and approximate " pseudorange " of the distance between the navigational satellite receiver are measured.In specific example, this pseudorange can be determined at the receiver place that can handle from the signal of one or more SV as global position system (SPS) part.For determining its position, satellite navigation receiver can obtain to the pseudo range measurement of three or more satellites and their positions when launching.
The technology of Miao Shuing can be used together with among some SPS ' any herein.In addition, these technology can be together with utilizing pseudo satellite, pseudolite or satellite and the navigation system of the combination of pseudo satellite, pseudolite to use.Pseudo satellite, pseudolite can comprise that broadcasting is modulated at the PN sign indicating number on L frequency band (or other frequencies) carrier signal or the transmitter based on ground of other ranging codes (for example, being similar to GPS or cdma cellular signal), this carrier signal can with time synchronized.Thereby such transmitter can be assigned the PN sign indicating number of uniqueness permits and can be identified by remote receiver.Pseudo satellite, pseudolite may be useful in the disabled circumstances from earth orbit Satellite GPS signal therein, such as in tunnel, mining area, building, urban canyon or other enclosed areas.The another kind of pseudo satellite, pseudolite realizes being known as radio beacon.Term " satellite " is intended to comprise the equivalence and possible other of pseudo satellite, pseudolite, pseudo satellite, pseudolite as used herein.Term " sps signal " is intended to comprise the class sps signal from the equivalence of pseudo satellite, pseudolite or pseudo satellite, pseudolite as used herein.
In a kind of specific implementation, equipment can comprise the navigation neceiver that can be suitable for receiving from the signal of one or more transmitters, and these signals can be indicated the position of navigation neceiver.This equipment also can comprise and being suitable for by cordless communication network and transceiver such as other devices communicatings such as servers for example.On the one hand, this equipment can be suitable for the synchronous situation of location-server under revive so that by cordless communication network and location-server exchange message from resting state off and on.Yet this only is an example of specific implementation, and theme required for protection is not defined in this respect.
When being in resting state, equipment can be in the functional operation down of power that reduces and reduction.In a specific example, the equipment that is in resting state perhaps can not receive and/or handle the signal that transmits in cordless communication network.In another implementation, be in resting state equipment may to the time base member fully power with duration of following the tracks of dormancy period etc. and initiate equipment is revived from resting state.By with the synchronous situation of location-server under revive from resting state off and on, equipment can receive by bi-directional communication channel from the information in the downlink communication channel of server, and needn't be in order to receive from the signal of cordless communication network and be in full power state constantly.
Fig. 1 is the schematic diagram of the communication network of communicating by letter with one or more communication terminals according to being suitable on the one hand.At this, terminal 102 can comprise any in the some equipment that are suitable for obtaining the information relevant with its position.At this, terminal 102 can comprise any in some low-power equipments, such as for example, embeds the equipment in clothing, Pet neck ring, mobile phone, key-ring, container or the means of transportation, and this has only enumerated a few examples.At this, these equipment can comprise the battery supply set that can operate with preservation and/or extending battery life under power saving mode.Terminal 102 can be used in any of following some application: for example the cashless payment of asset tracking, automatic meter reading, parking meter, traffic lights and transducer, bulletin board and public display, health monitoring, dwelling house/office's safety and warning system in real time, mounted remote information system, communal facility distributes and electrical network monitors, location/position monitors and/or ballot is used, this has only enumerated a few examples.
In one implementation, terminal 102 can be configured to communicate by letter with center 110 and/or application server 114.At this, center 110 can comprise any in some equipment and/or the process, such as for example being suitable for promoting the equipment in first communication network and the communication server of the transmission of messages between the equipment in the second communication network.On the one hand, terminal 102 can by with the uplink portion of the wireless communication link of mobile switching centre and/or the base station sub-system (MSC/BSS) 104 that be associated to center 110 and/or application server 114 transmission information.In a kind of specific implementation, this uplink portion of wireless communication link can comprise the access channel that is used to transmit other information that register requirement, setup requests, page response, order (order) response and/or system protocol may need.The information that in uplink portion, transmits to center 110 and/or application server 114 for example can comprise about with the state information of one or more equipment on terminal 102 coexistences one ground, sensing data, positional information, battery status etc.In the present context, " positional information " is meant the information that can describe the position, such as to the estimation of the position of terminal 102 and/or can be used to calculate the information of this estimation.
In addition, center 110 and/or application server 114 can by with the downlink portion of the wireless communication link of the MSC/BSS 104 that is associated to terminal 102 transmission information.In a kind of specific implementation, this downlink portion of wireless communication link can be included as pilot channel that starter system is caught provides beacon function, when being used to carry system acquisition the system parameters of needs synchronizing channel and be used to the paging channel of carrying Overhead Message, paging, setting up message and order.The information that transmits to terminal 102 in downlink portion for example can comprise information in order to control and one or more equipment on terminal 102 coexistences one ground, in order to the order of control and/or configurating terminal 102 etc.As shown below, terminal 102 can dormancy every now and then on the interval of predetermined period.In specific implementation, can comprise order in order to the dormancy interval that changes this predetermined period in order to the control and/or this order of disposing this terminal 102.
In specific implementation, can communicate by letter with terminal 102 according to short-message system (SMS) agreement in center 110.At this, for example, this transmission of messages according to the SMS agreement between center 110 and the terminal 102 can for example promote by message center (MC) 106 and/or mobile positioning center 108.Can use any and network service infrastructure in some communication protocols---such as the TCP/IP on any Internet protocol infrastructure for example---transmission information between center 110 and the application server 114 that is associated.At this, the example implementation that is used for the protocol stack of terminal 102, center 110 and application server 114 can be depicted as protocol stack 202,210 and 214 respectively at Fig. 2.In at least a replaceability realized, in order to reduce the stand-by period, center 110 can be suitable for sending point-to-point carrying service (SMDPP) according to short message and directly communicate by letter with MSC/BSS 104.Yet these only are the how examples that communicate with one another of the specific implementation of use agreement stack of terminal, center and/or application server, and theme required for protection is not defined in these areas.
On the one hand, terminal 102 can comprise and one or morely can acquisition of information calculates equipment to the estimation of the position of terminal 102 with any that is used for using some technology.In one implementation, radio frequency (RF) signal that receives at the receiver (not shown) place that is associated with terminal 102 can be used for using the technology of well known to a person skilled in the art to calculate estimation to the position of terminal 102.These signals can comprise for example sps signal.At this, this sps signal of receiving can be used to definite pseudo range measurement, and the latter for example can be used to calculate the estimation to the position.In other were realized, these received that signal for example also can comprise the signal that is received from such as the ground transmitters such as transmitter on the equipment among for example WLAN, WPAN and/or the WWAN.Also can be used to calculate estimation such as signal strength signal intensity, media interviews control (MAC) address etc. from the characteristic of these signals to the position.
In one example; although theme required for protection is not defined in this respect, can be at least in part use known technology to obtain pseudo range measurement to transmitter based on the sps signal of receiving at the equipment place with terminal 102 associated device (not shown).At this, this equipment can receive from the supplementary of catching that waits another equipment such as position determining entity PDE 112 and/or mobile positioning center/PDE (MPC/PDE) 108.In a kind of specific implementation, this equipment can also be at least in part based on estimating its position from this pseudo range measurement of receiving the sps signal acquisition.Perhaps, terminal 102 can will be forwarded to the destination from receiving this pseudo range measurement and/or other information that signal derives out by the up link with MSC/BSS 104, so that can calculate the estimation to the position of terminal 102.For example, application server 114 and/or PDE112 can be at least in part determine the position of terminal 102 based on the pseudo range measurement that is received from terminal 102 and/or other information.Yet should be understood that this only is the example that can how come the position of estimating apparatus according to specific implementation, and theme required for protection is not defined in this respect.
Fig. 3 is diagram according on the one hand the diagrammatic sketch to the call-flow 300 of the request signal immediately of terminal of being used for.At this, in incident 316, application server 314 can initiate to ask (LIR) message immediately at the position of terminal 302, comprises the uniqueness identifier that for example is associated with terminal 302.In response to this LIR message, in incident 318, location request message (PRM) can be initiated to terminal 302 in center 310 in calling, with request position information.In response to this PRM, in incident 320, terminal 302 can be with comprising such as for example to the estimation of the position of terminal 302 (for example, on terminal 302, independently calculate) and/or the message that can be used for calculating the information information such as (for example, estimating based on the pseudo range measurement of the signal that receives at terminal 302 places and/or other at least in part) of this estimation respond.
In incident 326, estimation to the position of terminal 302 can be returned to application server 314 in center 310, comprises the information that for example can indicate the ambiguity that is associated with this estimation.In a kind of alternative, be that incident 320 receives when the response message, center 310 can be called out PDE 312 in incident 322 and be calculated estimation to the position of terminal 302 with request.At this, for example can comprise the information of the information that can be used to provide the position that can be used for estimating terminal 302 that receives in incident 320 to this calling of PDE 312.PDE 312 can be at least in part calculates the estimation of the position of terminal 302 together with the tolerance to the ambiguity of this estimation based on this information, and sends center 310 in response to the calling from center 310 in the message that incident 324 will comprise this estimation and this tolerance.In specific implementation, although theme required for protection is not defined in this respect, can communicate by letter according in some communication protocols any in PDE 312 and center 310, such as according to SnapTrack
TMThe agreement that API (SNAPI) realizes.
Fig. 4 is diagram according on the one hand the diagrammatic sketch to the call-flow 400 of the request signal immediately of terminal of being used for.At this, application server 414 can be in incident 416 as above with reference to figure 3 detailed description ground transmission MLP message.Yet in this specific example, also can indicate " report criterion " in the MLP message that incident 416 transmits.In one example, criterion report criterion can comprise that request upgrades the order of the positional information that is associated with terminal 402 every now and then.At this, terminal 402 can be configured to and/or can be programmed to have " duty ratio " of the time that indicating terminal 402 can communicate by letter with center 410 in calling on two-way wireless communication link for example.Knowing under the situation of this duty ratio, in incident 420, PRM can be transmitted to terminal 402 in the just suitable time in center 410, it for example comprises at least in part the information of pattern of specifying and will use the ad-hoc location estimation of (for example, have auxiliary or do not have auxiliary ground) based on application-specific, QoS, report criterion etc.At this, form and/or the frequency that for example is used to provide about the positional information of terminal 402 can be provided this report criterion.Therefore, after incident 422 to 428 provided the initial period of this information, terminal 402 can for example provide the renewal to this information every now and then shown in incident 430 to 436.
Shown in above use specific example, terminal 102 can be communicated by letter with center 110 comprising on the bidirectional communication link of wireless communication link.In uplink portion, for example terminal 102 can transmit such as for example state information and/or the information such as information relevant with the position of terminal 102.This information for example can be forwarded to application server 114 subsequently.In the downlink portion of bidirectional communication link, center 110 can be transmitted such as information such as configuration orders for example to terminal 102.Yet as mentioned above, terminal 102 can comprise and may be in resting state every now and then for example to save the low duty cycle device of power.Therefore in specific implementation, terminal 102 may need to be transformed into wake states so that can be received in the downlink portion of two-way wireless communication link 110 information that send from the center.
As mentioned above, terminal 102 can be suitable for for example reviving from resting state off and on as low duty cycle device.In specific implementation, such as for example in cdma network, when being in wake states, such terminal 102 can be carried out slotted mode operation, such as the listening paging channel, receive message and send message.Like this, when being in wake states, terminal 102 can be in the uplink portion of wireless communication link on the downlink portion that center 110 transmission information and/or reception are associated from the information at center 110.In a kind of specific implementation, although theme required for protection is not defined in this respect, such terminal 102 can be suitable for and/or be configured to the synchronous situation in the center of being associated 110 under revive from this resting state.Like this, being associated center 110 can be to terminal 102 transmission information when terminal 102 is revived from sleep state and can receive information on the downlink portion of wireless communication link.
In one implementation, terminal 102 can be by for example catching from the signal of MSC/BSS 104 near and for example using with exchange of skills information like those technology types that are used to register the equipment that adds cdma network and register to cordless communication network.Part as this registration, terminal 102 can be indicated information such as the certain capabilities of identification information, indicating terminal 102---such as battery capacity and remaining power life-span---for example, specifies the information of dormancy duty ratio that (time T between reviving for example, links up
HIAnd/or be in duration of wake states in one-period in office) etc. attribute.In a specific example, this information in specific battery capacity and/or remaining power life-span can make application server 114 the proper of computing terminal 102 (for example to fit the dormancy interval, if battery is more weak or have a low capacity, long dormancy interval is then arranged), and/or can according to revive between the incident just in good time between and the terminal 102 duration interval that is in wake states come configurating terminal 102.This information also can be used for triggering the message (for example, via SMS message) to the long-distance user, to notify this long-distance user's battery just weakening and to need to change or charging.
In one implementation, after registration, terminal 102 can be placed in the free time but the state of reviving reaches the defined duration and receive the message from the downlink portion of communication link.During this duration, for example (for example, from application server 114) any message co-pending that is addressed to registered terminals 102 and receives can be transmitted in center 110 on center 110 before registration.
In another implementation, to network registry, configuration messages can be transmitted to registered terminal 102 in center 110 in response to terminal 102.This configuration messages can comprise such as T for example
Beginning(permitting the time that terminal 102 begins to carry out the active message transmitting-receiving) and/or T
FinishInformation such as (after this disapproving the time that terminal 102 sends any more message).Therefore, knowing T
HI, T
BeginningAnd T
FinishSituation under, terminal 102 be in wake states period can with center 110 synchronously so that as above pointed ground receiving downlink message.Be in terminal 102 during this period of wake states, for example center 110 can be in the downlink portion transfer of wireless communication link the give out a contract for a project message co-pending of drawing together (for example, from application server 114) that be addressed to terminal 102 and/or the message of order.
In another was realized, terminal 102 can transmit scheduling and active message reaches a duration to indicate this terminal to be in wake states to center 110, terminal 102 can be during this duration receiving downlink message.In response to such active message, center 110 can locate and obtain to be addressed to the message co-pending of terminal 102 and transmit these message as described above in the downlink portion of wireless communication link.
In one example, terminal 102 may lose with center 110 synchronously.In a kind of specific implementation, terminal 102 can be suitable for the compartment of terrain and transmit " keeping active " message to the center.At this, the information such as information that provide in registration message for example such as for example can be provided this maintenance alive message.
In specific implementation, the message that is used to send to terminal 102 can be dispatched in center 110.For example, center 110 can be with the message stores that is addressed to terminal in data structure, and the latter permits transmitting by the MSC/BSS 104 that is associated during receiving side terminal 102 therein is in wake states and can receives period from the message of the downlink portion of wireless communication link.Center 110 can be dispatched on the rule scheduling interval will be by the downlinlc message of MSC/BSS 104 forwardings.For example, center 110 can be the downlinlc message transmission of carrying out to terminal 102 by MSC/BSS 104 and selects the particular schedule interval, so that terminal 102 is in the transmission of simultaneous downlink message during follow-up period of wake states therein.Therefore, receiving side terminal 102 can be suitable for the synchronous situation in center 110 under revive with receiving downlink message from sleep state off and on.
In a kind of specific implementation, center 110 can be at least in part based on the average retardation T that transmits downlinlc message after this message of receiving at the MSC/BSS 104 that is associated from center 110
MIN_MSC_DELAY(T
Minimum _ MSC_ postpones) this downlinlc message of scheduling in the particular schedule interval.At this, center 110 can be at T to the scheduled transmission of terminal 102
MIN_MSC_DELAYTransmit message to the MSC/BSS104 that is associated, for example by these message being delivered to just suitable application and/or transport layer (for example, in protocol stack 210).
Shown in other places herein, terminal 102 can be suitable for communicating by letter with the MSC/BSS that is associated in wireless communication link according to the CDMA agreement.In this specific implementation, after homing sequence as discussed above and registration, terminal 102 can be placed in the slotted mode, and wherein recovery time can followingly be determined:
Revive _ time=T
HI* (CDMA_ system _ time/T
HI)+T
Side-play amount
If revive _ time 〉=CDMA_ system _ time; And
Revive _ time=T
HI* (CDMA_ system _ time/T
HI)+T
Side-play amount+ T
HI
If revive _ time＜CDMA_ system _ time.
T wherein
Side-play amountCan following use hash determine:
N is the T in second
HIThe integer value expression formula; And
ESN is 32 expression formulas.
Illustrate the isochronous schedules of using in one implementation 600 among Fig. 6.Be depicted as at center 110 and terminal 102 graphic timelines.To understand, Fig. 6 describes the timeline of single center 110 and single terminal 102, and this specific implementation can provide at least one center 110 and a plurality of terminal 102.At least in part based on T
BeginningThe recovery time 605 of 510 terminal 102 is by Hash and be that both are known for center 110 and terminal 102.Center 110 may be received the message (for example, from AS 114) that will transfer to terminal 102, and these message are stored in the memory (not shown) according to destination that is associated with terminal 102 and the time of transmitting in the future and sort.At recovery time 605 basically, center 110 can initiate to comprise the transmission of the message of any institute storing message that will be transferred to terminal 102 in the times 615.This message is received in the time 620 by terminal 102.Response message can be received from terminal 102 in center 110.Arrive be transformed into dormancy in the time 610 before, terminal 102 can transmit one or more message to center 110, it was received in the time 632.In the particular illustration of Fig. 6, the reception of the 110 pairs of this message in center is that the time 610 is transformed into dormancy and takes place at 632 places before.Yet should be understood that in other scenes this message may just be received in center 110 in fact after terminal 102 is transformed into dormancy.This message can comprise for example KA message, and it comprises about operating state, battery status, the network information with to the information requested of configuration data.In one implementation, at T
FinishTake place and think that terminal 102 is in after the resting state, center 110 can be selected and will be transferred to the message co-pending of terminal 102 in transmission time next time in the time 640, this next time the transmission time consistent with the follow-up period that terminal 102 wherein is transformed into wake states.Though Fig. 6 only illustrates the time 640 that the message co-pending that will transmit can be selected in center 110 during the dormancy interval, it should be understood that this selection can repeatedly be carried out in the center during this dormancy interval.Basically when reviving the next time of time 642, center 110 can be initiated the transmission of message co-pending to terminal 102, and this rear center 110 receives the message of self terminal 102 in the time 650.In the time 632, center 110 may continue to receive such as message such as KA message, and this depends on remaining time quantum before changing back resting state 652.In another implementation, can dynamically adjust according to the number and the essence of center 110 transmissions and the message of receiving that will be transferred to terminal 102 in the conversion of time 610 and 652 between resting state and wake states.For example, can not then will only transmit a part by carrying if the number of message co-pending is too big in time 615 or the 645 wall scroll SMS message that transmit in these times.Be that the time 630 and 650 receives when the message that center 110 can be reset and put off in the time 610 and 652 subsequently and is transformed into resting state.Center 110 can send the further part and/or the remainder of (not shown) message co-pending subsequently in a similar manner.This process can be proceeded to have transmitted all message co-pending that are addressed to terminal 102 until center 110.
In a kind of specific implementation, between center 110 and the terminal 102 synchronously and/or Shi Jike basically with wireless communication link in base uncoupling during the transmission of up link and downlinlc message.Refer again to protocol stack 202 and 210, it illustrates communicating by letter between the center 110 and terminal 102 in a kind of the realization, SMS message can between the communication layers of respective center 110 and terminal 102, transmit and with up link and downlinlc message on message the time base irrelevant.In a kind of specific implementation, SMS message can transmit between message center 106 and center 110 in packet on the Internet protocol infrastructure.Thus, center 110 can and the message that in up link and downlink portion, transmits between terminal 102 and the MSC/BSS 104 the time base irrespectively scheduling message and/or period when terminal 102 is in dormancy or revives.Thus, center 110 can be geographically from the cellular network uncoupling and/or remove and be placed in that other are local so that the side that easier quilt communicate by letter with terminal 102 access.
In a kind of realization as discussed above, center 110 can determine that terminal 102 wherein is in the length of the duration of wake states in any one-period.Center 110 can be for example by specifying this duration that this duration is set in sending one or more configuration messages of terminal 102 to.In another implementation, center 110 can be at least in part based on this message of receiving at the MSC/BSS 104 that is associated from center 110 after transmit the average retardation T of downlinlc message
MIN_MSC_DELAYThe ambiguity that is associated is determined this duration.At this, for example, and if T
MIN_MSC_DELAYThe ambiguity that is associated increases, and then center 110 can increase terminal 102 wherein is in wake states in any one-period duration, will be in wake states to guarantee terminal 102 in order to receive message.Equally, and if T
MIN_MSC_DELAYThe ambiguity that is associated reduces, and then the center will reduce this duration.Should be understood that at this reducing duration that terminal 102 wherein is in wake states can advantageously increase the life-span of the battery that the operation of terminal 102 is powered.
In one implementation, although theme required for protection is not defined in this respect, the average retardation T in communicating downlink message
MIN_MSC_DELAYCan be at least in part definite based on coming and going the message time (for example, time 615 as shown in Figure 6 and 630 poor or 645 and 650 is poor).Similarly, the ambiguity in the actual delay of this transmission can be from average retardation T
MIN_MSC_DELAYVariance determine.
In specific implementation, terminal 102 can comprise equipment as shown in Figure 5, and it can be handled the sps signal of receiving and communicate by letter with cordless communication network with definite pseudo range measurement and by antenna 1410 on antenna 1414.At this, wireless set 1406 can be suitable for the carrier signal with modulate baseband information RF, and such as data, voice and/or SMS message are modulated on the RF carrier wave, and the modulated RF carrier wave of demodulation is to obtain this base-band information.Antenna 1410 can be suitable at the modulated RF carrier wave of emission on the wireless communication link and receive modulated RF carrier wave on the wireless communication link.
SPS receiver (SPS Rx) 1412 can be suitable for receiving also demodulation from the transmission of each SV, and will offer correlator 1418 through demodulated information.Correlator 1418 can be suitable for according to the information that receiver 1412 the is provided correlation function of deriving.Correlator 1418 also can be suitable for according to transceiver 1406 information relevant with pilot signal that the provided relevant correlation function with pilot tone of deriving.This information can be used to catch cordless communication network by equipment.
The channel symbol that channel decoder 1420 can be suitable for being received from baseband processor 1408 is decoded into bottom source bit.Channel symbol comprises that this channel decoder can comprise the Viterbi decoder in the example of code element of convolutional encoding therein.Channel symbol comprises that channel decoder 1420 can comprise the turbo decoder in second example of convolution code of serial or parallel cascade therein.
Though illustration and described the content that is thought of as exemplary characteristics at present it will be understood by those skilled in the art that and can make other various modifications and replaceable equivalence techniques scheme and do not break away from theme required for protection.In addition, can make many modifications so that particular situation is suitable for the teaching of theme required for protection and does not break away from central idea described herein.Therefore, theme required for protection is not to be intended to be defined to disclosed specific example, and opposite theme required for protection like this also can comprise all aspects in the scope that falls into claims and equivalence techniques scheme thereof.One or omnibus claims may be put down in writing a feature with form " A or B, or the two " can comprise key element/qualification " A " or key element/qualification " B " to specify this feature, perhaps key element/qualification " A " and key element/qualification " B " both.In addition, do not get rid of the existence of the key element except that key element/qualification " A " or key element/qualification " B " with form " A or B, or the two " this feature of putting down in writing.
Claims (52)
1. equipment comprises:
Receiver is suitable for receiving the signal from one or more transmitters; And
Transceiver is suitable for by cordless communication network and server communication,
Wherein said equipment be suitable for the situation of described server sync under revive from resting state off and on on described cordless communication network with described server exchange information,
Described information comprises at least in part based on the described positional information of receiving signal.
2. equipment as claimed in claim 1 is characterized in that, described equipment is suitable for using Short Message Service (SMS) to exchange described information two-wayly.
3. equipment as claimed in claim 1 is characterized in that, described positional information comprises at least in part based on the described pseudo range measurement of receiving that signal is determined.
4. equipment as claimed in claim 3 is characterized in that, described information also comprises the information of selecting from the mass selection that comprises the almanac information that is associated with global position system (SPS) and ephemeris information in essence.
5. equipment as claimed in claim 1 is characterized in that, described transceiver be suitable for according to the code division multiple access agreement to or transmit information or reception information or the two from described cordless communication network.
6. equipment as claimed in claim 1 is characterized in that, described equipment is suitable for reviving from described resting state according to predetermined scheduling.
7. equipment as claimed in claim 1 is characterized in that, described information also comprises from described server sends order to described equipment.
8. equipment as claimed in claim 1 is characterized in that, described information comprises at least in part the estimation to the position of described equipment of receiving signal based on described.
9. equipment as claimed in claim 1 is characterized in that, described equipment also is suitable for transmitting the environment sensing data by described cordless communication network to described server.
10. method comprises:
In receiver place received signal;
With the synchronous situation of second device server under make first equipment off and on from resting state revive with on cordless communication network with the described second device server exchange message, described information comprises at least in part based on the described positional information of receiving signal.
11. method as claimed in claim 10 is characterized in that, also comprises using Short Message Service (SMS) to exchange described information.
12. method as claimed in claim 10 is characterized in that, described positional information comprises at least in part based on the described pseudo range measurement of receiving that signal is determined.
13. method as claimed in claim 12 is characterized in that, described information is from comprising that in essence the almanac information that is associated with global position system (SPS) and the mass selection of ephemeris information select.
14. method as claimed in claim 10 is characterized in that, described information is that transmit to described cordless communication network according to the code division multiple access agreement or that receive from described cordless communication network or the two.
15. method as claimed in claim 10 is characterized in that, describedly described first equipment is revived from described resting state off and on comprise according to predetermined scheduling described equipment is revived from described resting state.
16. method as claimed in claim 10 is characterized in that, described information also comprises from described server sends order to described equipment.
17. method as claimed in claim 10 is characterized in that, described information comprises at least in part the estimation to the position of described equipment of receiving signal based on described.
18. method as claimed in claim 10 is characterized in that, described equipment also is suitable for transmitting the environment sensing data by described cordless communication network to described server.
19. goods comprise:
Storage medium comprises the machine readable instructions that is stored thereon, and described machine readable instructions is suitable for making described computing platform when being carried out by computing platform:
The signal that processing is received at the receiver place; And
With the synchronous situation of second device server under make first equipment off and on from resting state revive with on cordless communication network with the described second device server exchange message, described information comprises at least in part the positional information based on described treated signal.
20. goods as claimed in claim 19 is characterized in that, described instruction is further adapted for when being carried out by described computing platform and makes described computing platform according to predetermined scheduling described equipment be revived off and on from described dormancy.
21. goods as claimed in claim 19 is characterized in that, described instruction is further adapted for when being carried out by described computing platform uses the exchange of Short Message Service (SMS) initiation to described information.
22. goods as claimed in claim 19 is characterized in that, described positional information comprises at least in part based on the described pseudo range measurement of receiving that signal is determined.
23. a device comprises:
Be used to handle the device of the signal of receiving at the receiver place; And
Be used for the situation of second device synchronization under make first equipment off and on from resting state revive with on cordless communication network with the device of the described second devices exchange information, described information comprises at least in part the positional information based on described treated signal.
24. device as claimed in claim 23 is characterized in that, the described device that is used to described first equipment is revived off and on comprises that also being used for basis is scheduled to scheduling is revived described first equipment off and on from described dormancy device.
25. device as claimed in claim 23 is characterized in that, also comprises the device that is used to use Short Message Service (SMS) initiation and the described information of described second devices exchange.
26. device as claimed in claim 23 is characterized in that, described positional information comprises at least in part based on the described pseudo range measurement of receiving that signal is determined.
27. a method comprises:
Reception is addressed to the message of equipment; And
Dispatch described therein equipment and during the interval that resting state is revived, pass through the downlink portion of wireless communication link to the described message of described device transmission.
28. method as claimed in claim 27 is characterized in that, also comprises:
Reception is from the information of the indication dormancy duty ratio of described equipment; And
Dispatch described transmission based on described information at least in part.
29. method as claimed in claim 28 is characterized in that, described information is to transmit from described equipment during process from described equipment to cordless communication network that register.
30. method as claimed in claim 27 is characterized in that, described message transmits according to Short Message Service (SMS) agreement.
31. method as claimed in claim 27 is characterized in that, the described transmission of messages of described scheduling comprises with the time base of the transmission of message in described downlink portion irrespectively dispatches described message.
32. method as claimed in claim 27 is characterized in that, also comprises:
Define the period interval that wherein said equipment is in wake states; And
The transmission of the message of this institute of scheduling indication interval of definition.
33. method as claimed in claim 32 is characterized in that, the described interval of described definition comprises at least in part and changes described interval based on the battery levels that is associated with described equipment.
34. method as claimed in claim 27 is characterized in that, the described interval of described definition comprises at least in part and defines described interval based on the ambiguity that is associated with the transmission and the delay between receive from described down link at described equipment place of described message.
35. goods comprise:
Storage medium has the machine readable instructions that is stored thereon, and described machine readable instructions is suitable for making described computing platform when being carried out by computing platform:
To be addressed to the message stores of equipment in data structure; And
Dispatch described therein equipment and during the interval that resting state is revived, pass through the downlink portion of wireless communication link to the described message of described device transmission.
36. goods as claimed in claim 35 is characterized in that, described machine readable instructions also is suitable for making described computing platform when being performed:
Dispatch described transmission based on the information of the indication dormancy duty ratio that is received from described equipment at least in part.
37. goods as claimed in claim 35 is characterized in that, described instruction also is suitable for making the described computing platform and the time base of the transmission of message in described downlink portion irrespectively to dispatch described message when being performed.
38. goods as claimed in claim 35 is characterized in that, described instruction also is suitable for making described computing platform when being performed:
Define the period interval that wherein said equipment is in wake states; And
The transmission of the message of this institute of scheduling indication interval of definition.
39. goods as claimed in claim 37 is characterized in that, described instruction also is suitable for making described computing platform to change described interval based on the battery levels that is associated with described equipment at least in part when being performed.
40. goods as claimed in claim 35, it is characterized in that described instruction also is suitable for making described computing platform to define described interval based on the ambiguity that is associated with the transmission and the delay between receive from described down link at described equipment place of described message at least in part when being performed.
41. a device comprises:
Computing platform, described computing platform is suitable for:
To be addressed to the message stores of equipment in data structure; And
Dispatch described therein equipment and during the interval that resting state is revived, pass through the downlink portion of wireless communication link to the described message of described device transmission.
42. device as claimed in claim 41 is characterized in that, described computing platform also is suitable for:
Dispatch described transmission based on the described information of indication dormancy duty ratio at least in part.
43. device as claimed in claim 41 is characterized in that, described computing platform also is suitable for:
Irrespectively dispatch the transmission of described message with the time base of the transmission of message described in the described downlink portion.
44. method as claimed in claim 41 is characterized in that, also comprises:
Define the period interval that wherein said equipment is in wake states; And
The transmission of the message of this institute of scheduling indication interval of definition.
45. method as claimed in claim 44 is characterized in that, the described interval of described definition comprises at least in part and changes described interval based on the battery levels that is associated with described equipment.
46. method as claimed in claim 41, it is characterized in that the described interval of described definition comprises at least in part based on defining described interval with the transmission of initiating described message and the ambiguity that the delay between receive from described down link at described equipment place is associated.
47. a device comprises:
Be used to receive the device of the message of the equipment of being addressed to; And
Be used to dispatch described therein equipment and during the interval that resting state is revived, pass through the device of the downlink portion of wireless communication link to the described message of described device transmission.
48. device as claimed in claim 47 is characterized in that, also comprises:
Be used to receive device from the information of the indication dormancy duty ratio of described equipment; And
Be used for dispatching based on described information at least in part the device of described transmission.
49. device as claimed in claim 47 is characterized in that, the described device that is used to dispatch described transmission of messages comprises that the time base that is used for the transmission of message irrespectively dispatches the device of described message.
50. device as claimed in claim 47 is characterized in that, also comprises:
Be used to define the device that wherein said equipment is in the period interval of wake states; And
Be used to dispatch the device of transmission of the message of this institute of indication interval of definition.
51. device as claimed in claim 50 is characterized in that, the described device that is used to define described interval comprises the device that is used for changing based on the battery levels that is associated with described equipment at least in part described interval.
52. device as claimed in claim 47, it is characterized in that the described device that is used to define described interval comprises and being used at least in part based on defining the device in described interval with the transmission of initiating described message and ambiguity that the delay between receive from described down link at described equipment place is associated.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88690407P | 2007-01-26 | 2007-01-26 | |
| US60/886,904 | 2007-01-26 | ||
| US60/887,536 | 2007-01-31 | ||
| US11/766,068 | 2007-06-20 | ||
| US12/020,389 | 2008-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101595646A true CN101595646A (en) | 2009-12-02 |
Family
ID=41409208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008800031996A Pending CN101595646A (en) | 2007-01-26 | 2008-01-28 | Low duty cycle device protocol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101595646A (en) |
-
2008
- 2008-01-28 CN CNA2008800031996A patent/CN101595646A/en active Pending
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