CN1864432A - Combining acknowledgement and rate control - Google Patents
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- CN1864432A CN1864432A CNA2004800290070A CN200480029007A CN1864432A CN 1864432 A CN1864432 A CN 1864432A CN A2004800290070 A CNA2004800290070 A CN A2004800290070A CN 200480029007 A CN200480029007 A CN 200480029007A CN 1864432 A CN1864432 A CN 1864432A
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Abstract
Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated, and a second signal conditionally indicates the rate control command when one is generated. In another aspect, a grant may be generated concurrently with the acknowledgement. In yet another aspect, a mobile station monitors the first signal, conditionally monitors the second signal as indicated by the first signal, and may monitor a third signal comprising a grant. In yet another aspect, one or more base stations transmit one or more of the various signals. Various other aspects are also presented. These aspects have the benefit of providing the flexibility of grant-based control while utilizing lower overhead when rate control commands are used, thus increasing system utilization, increasing capacity and throughput.
Description
Priority request according to 35 U.S.C § 119
Present patent application requires provisional application No.60/493 that submit to, that be entitled as " Reverse Link RateCntrol for CDMA 2000 Rev D " on August 5th, 2003, the provisional application No.60/496 that submitted on August 18th, 046 and 2003, be entitled as " Reverse Link Rate Control for CDMA 2000 RevD ", 297 priority.
Invention field
The present invention relates generally to radio communication, relate in particular to mandate, affirmation and rate control channel are combined.
Technical background
For various communication the such as speech and data is provided, widespread deployment wireless communication system.Typical radio data system or network provide visit to one or more shared resources for a plurality of users.A kind of system can use multiple access technology, as frequency division multiplexing (FDM), Time Division Multiplexing, code division multiplexing (CDM) etc.
The example of wireless network comprises the data system based on honeycomb.Some such examples are as follows: (1) " TIA/EIA-95-B Mobile Station-Base Staion CompatibilityStandard for Dual-Mode Wideband Spread Spectrum Cellular System " (IS-95 standard); (2) standard (W-CDMA standard) that (3GPP) provides by " 3rd Generation Partnership Project " by name, it is included among one group of document 3G TS 25.211,3GTS 25.212,3G TS 25.213 and 3G TS 25.214; (3) standard (IS-2000 standard) that (3GPP2) provides by " 3rdGeneration Partnership Project 2 " by name, it is included in " TR-45.5 Physical Layer Standard for cdma2000 SpreadSpectrum Systems "; (4) follow high data rate (HDR) system of TIA/EIA/IS-856 standard (IS-856 standard); (5) IS-2000 standard version C comprises C.S0001.C to C.S0006.C; Relevant document (comprising subsequent editions D motion) is called as the 1xEV-DV suggestion.
In an example system, promptly among the IS-2000 standard version D (current being in the development phase), the transmission of mobile radio station on reverse link is by base stations control.The base station can determine to allow flank speed that mobile radio station sends or professional and pilot tone than (TPR).Currently two kinds of controlling mechanisms have been advised: based on authorizing and based on rate controlled.
In based on the control of authorizing, mobile radio station is to the information of base station feedback about the transmitting capacity of mobile radio station, data buffer size, service quality (QoS) grade etc.Base station monitoring is from the feedback of a plurality of mobile radio stations, and decision allows the corresponding flank speed which mobile radio station sends and each mobile radio station allowed.Via authorization messages these decisions are delivered to mobile radio station.
In the control based on rate controlled, the base station uses limited scope to adjust the speed of mobile radio station (speed rise, constant or speed downward modulation).Use simple binary rate control bit or many-valued indication, will adjust order and be sent to mobile radio station.
Under full buffer situation, movable mobile radio station has lot of data, at this moment, and based on the technology of authorizing and substantially the same based on the technical work of rate controlled.Ignore overhead issues, authorization method can be controlled mobile radio station better under the situation of actual services model.Ignore overhead issues, authorization method can be controlled different QoS stream better.Can distinguish two kinds of rate controlled types, this comprises: special-purpose method of rate control, give each mobile radio station individual bit; And, public rate controlled, individual bit is used in each sector.The various mixing of these two kinds of methods can be distributed to a rate controlled bit to a plurality of mobile radio stations.The expense that common rate control method needs is less.But, to compare with more special-purpose controlling schemes, it is also less to the control that mobile radio station provides.When the quantity of the mobile radio station that sends when the time in office reduced, common rate control method and special-purpose method of rate control were close to each other.
Can change the transmission rate of mobile radio station apace based on the technology of authorizing.But if there is the rate variation that continues, then the technology based on pure mandate can produce higher expense.Equally, pure rate control techniques can cause the gentle interior identical or higher expense of time that rises of very slow slow the liter time (ramp-up times).
Said method all can not provide the expense of reduction and very big or speed adjustment fast.Therefore, exist the reduction expense to control and can adjust where necessary the demand of transmission rate in this area.
Summary of the invention
Embodiment disclosed herein can solve this area of demand control and can adjust where necessary transmission rate in to(for) the reduction expense.According to an aspect, the affirmation of the decoded subdata bag of first signal indication and generating rate control command whether, when generating a rate controlled order, secondary signal is represented this rate controlled order conditionally.According on the other hand, authorizing affirmation can generate simultaneously.According on the other hand, mobile station monitors first signal, the situation indicated according to first signal monitors secondary signal conditionally, and, can monitor the 3rd signal that comprises mandate.According on the other hand, one or more mobile radio stations send one or more different signals.Give other various aspects.The advantage of these aspects is: when using the rate controlled order, provide based on the flexible control of authorizing, and utilize lower expense, thereby improve system availability, increase capacity and throughput.
The accompanying drawing summary
Fig. 1 is the The general frame that can support a plurality of users' wireless communication system;
Fig. 2 shows and is used for exemplary mobile radio station and the base station that data communications system disposes;
Fig. 3 is the block diagram of the radio communication device such as mobile radio station or base station;
Fig. 4 shows the embodiment of the data and the control signal of Reverse link data communication;
Fig. 5 is exemplary affirmation channel;
Fig. 6 is exemplary rate control channel;
Fig. 7 available exemplary capacity allocation method in mobile radio station is with request and the transmission of response from one or more mobile radio stations;
Fig. 8 is the illustrative methods that generates mandate, affirmation and rate controlled order;
Fig. 9 allows mobile station monitors and the illustrative methods that responds mandate, affirmation and rate controlled order;
Figure 10 shows and will confirm and the sequential chart of the exemplary embodiment that rate control channel combines;
Figure 11 shows and will confirm and the sequential chart of the exemplary embodiment that rate control channel gets up together with new authorized combination; And
Figure 12 shows and will confirm and rate control channel combines and do not have the sequential chart of the exemplary embodiment of mandate.
Embodiment
By advantageously controlling or adjust one or more data rates with the various acknowledge messages that transmit in the system, the exemplary embodiment that describes below can be distributed shared resource, for example by one or more mobile radio station resources shared in the communication system.
Use technology and the advantage thereof provide based on the scheduling combination of the scheduling of authorizing and rate controlled thereby having disclosed combines authorization channel, acknowledgement channel and rate control channel here.Each embodiment can realize one or more in the following advantage: the transmission rate that increases mobile radio station apace; Make mobile radio station stop to send apace; Reduce the speed of mobile radio station and adjust expense; Reduce the acknowledge expense of mobile radio station; Reduce overhead; And, the stream from one or more mobile radio stations is carried out service quality (QoS) control.Describe each other advantage below in detail.
One or more exemplary embodiment given here is applied to the environment of digital radio data communication system.Though preferably in this environment, use, also different embodiments of the invention can be applied to different environment or configuration.Generally, processor, integrated circuit or the discrete logic of each system's available software control described herein are realized.Data, instruction, order, information, signal, symbol and the chip that runs through the application preferably makes up with voltage, electric current, electromagnetic wave, magnetic field or particle, light field or particle or its to be represented.In addition, the module shown in every block diagram can be represented hardware or method step.
More particularly, various embodiments of the present invention can be applicable to a basis by in the wireless communication system that argumentation and disclosed communication standard are worked in the various standards of telecommunications industry association (TIA) and the publication of other standardization bodies.These standards comprise TIA/EIA-95 standard, TIA/EIA-IS-2000 standard, UMTS and WCDMA standard, GSM standard, and these are all incorporated into herein with way of reference.If expect the copy of these standards, can write to " TIA, Standards and Technology Department, 2500 Wilson Boulevard, Arlington, VA 22201, United States of America ".The standard that is commonly called the UMTS standard is incorporated into herein with way of reference, can obtain it by contact " 3GPP Support Office, 650 Route des Lucioles-Sophia Antipolis, Valbonne-France ".
Fig. 1 is the block diagram of wireless communication system 100, and wireless communication system 100 can be supported one or more CDMA standards and/or design (for example, W-CDMA standard, IS-95 standard, cdma2000 standard, HDR standard, 1xEV-DV system).In other embodiments, system 100 also can support any wireless standard or the design except that CDMA.In this exemplary embodiment, system 100 is 1xEV-DV systems.
For the sake of simplicity, shown system 100 comprises three base stations 104 that communicate with two mobile radio stations 106.Base station and overlay area thereof often are collectively referred to as " honeycomb ".In IS-95, cdma2000 or 1xEV-DV, for example, a honeycomb can comprise one or more sectors.In the W-CDMA standard, each sector of base station and the overlay area of this sector are called as " honeycomb ".Term used herein " base station " can exchange with term " access point " or " Node B " and use.Term " mobile radio station " can exchange with term " subscriber equipment (UE) ", " subscriber unit ", " subscriber station ", " accessing terminal ", " remote terminal " or other corresponding terms as known in the art and use.Term " mobile radio station " comprises fixing wireless application.
Realization according to cdma system, at any given time, each mobile radio station 106 can be communicated by letter with (or may be an a plurality of) base station 104 by forward link, and, whether be in soft changing state according to this mobile radio station, can be by reverse link and one or more base station communication.Forward link (being down link) refers to the transmission from the base station to the mobile radio station, and reverse link (being up link) refers to the transmission from the mobile radio station to the base station.
Though each embodiment described herein provides reverse link or forward link signal to support rl transmission and some may be well suited for the essence of rl transmission, but those skilled in the art are to be understood that, data described herein can be transmitted in these mobile radio stations and base station, and a lot of aspect of the present invention also is applicable to those situations." exemplary " used herein speech means " as example, illustration or explanation ".Here being described to any embodiment of " exemplary " or design should not be interpreted as than other embodiment or design more preferably or have superiority.
The 1xEV-DV forward link data transmission
Similar with the Traffic Channel in the IS-856 standard, between being used at a time, F-PDCH sends data to one or two user of each honeycomb with the highest data rate of supporting.In IS-856, when when mobile radio station sends data, whole power of base station and whole spaces of Walsh function all are available.But in the 1xEV-DV system, a part of base station power and a part of Walsh function have been assigned to overhead channel and existing IS-95 and cdma2000 business.Supported data rate depends primarily on available power and Walsh sign indicating number after having distributed the power that is used for expense, IS-95 and IS-2000 channel and Walsh sign indicating number.With one or more Walsh sign indicating numbers the data of transmitting are carried out spread spectrum on F-PDCH.
In the 1xEV-DV system, the base station is sending to a mobile radio station by F-PDCH sometime usually, although a lot of user may be at the Packet Service in using honeycomb.(also can send, the transmission by reasonably dispatching these two users and distribute power and Walsh channel for each user) to two users.Based on some dispatching algorithms, select to carry out the mobile radio station of forward link transmissions.
In the system that is similar to IS-856 or 1xEV-DV, scheduling is based in part on the channel-quality feedback from just serviced mobile radio station.For example, in IS-856, mobile radio station is estimated forward link quality and is calculated for the present situation and expect continuable transmission rate.Expection speed from each mobile radio station is transferred to the base station.Dispatching algorithm can, for example, select to support the mobile radio station of higher transmission rates to transmit, thereby utilize the communication channel of sharing more efficiently.Again for example, in the 1xEV-DV system, each mobile radio station sends carrier/interface ratio (C/I) estimated value, as the channel quality estimation to reverse channel quality indication channel (R-CQICH).Dispatching algorithm is used to be defined as transmitting selected mobile radio station and determine suitable speed and transformat according to channel quality.
As mentioned above, wireless communication system 100 can be supported the user of a plurality of while shared communication resources, for example, the IS-95 system gives a user with whole communication resource distribution between can be at a time, perhaps, and for example, the IS-856 system can the allocate communications resource, to support two types access.The 1xEV-DV system is a kind of exemplary system, divides the communication resource between two kinds of visits, and, dynamically distribute according to customer requirements.A kind of exemplary forward link embodiment has just been described in the front.Various exemplary reverse link embodiment are described in further detail below.
Fig. 2 shows exemplary mobile radio station 106 and the base station 104 that is used for data communications system 100 configurations.Shown mobile radio station 106 and base station 104 communicate on a forward link and a reverse link.Mobile radio station 106 receives forward link signal in receiving subsystem 220.The base station 104 of transmitting forward data and control channel will be described below in detail, the service station of mobile radio station 106 can be called here.Also will an exemplary receiving subsystem be described in further detail below in conjunction with Fig. 3.In mobile radio station 106, the forward link signal that receives from serving BS is carried out carrier/interface ratio (C/I) estimate.The C/I measurement is as an example of the channel quality measures standard of channel estimating, in other embodiments, also can use other channel quality measures standards.In base station 104, the C/I measurement result is sent to transmission subsystem 210, the back also will describe in further detail its example in conjunction with Fig. 3.
In an exemplary 1xEV-DV embodiment,, select to carry out the mobile radio station of forward link transmissions when the C/I measurement result that receives from this mobile radio station shows can send data by special speed the time.Consider power system capacity, preferably select a target mobile radio station, thus but the communication resource of always sharing by the highest supporting rate utilization.Therefore, selected typical target mobile radio station can be the mobile radio station with the maximum C/I that is reported.In scheduling decision, it is also conceivable that other factors.For example, can make minimum quality of service to each user guarantees.The mobile radio station that can select to have the low C/I that is reported transmits, thereby is maintained to this user's lowest data transmission rate.Also the mobile radio station that can select not have the maximum C/I that is reported transmits, thereby keeps specific just standard in all users.
In this exemplary 1xEV-DV system, which mobile radio station transmission scheduler 240 is determined to and is somebody's turn to do data rate, modulation format and the power level of transmitting.In other embodiments, in the IS-856 system, in mobile radio station, can make a strategic decision but make supporting rate/modulation format based on the channel quality of in mobile radio station, measuring, and, transformat can be sent to serving BS and replace the C/I measurement result.But it should be recognized by those skilled in the art that the various combinations that in protection range of the present invention, to use supporting rate, modulation format, power level etc.In addition, among described here each embodiment, scheduler task is finished in the base station, but in other embodiments, part or all of scheduling process can be carried out in mobile radio station.
The speed that 250 uses of scheduler 240 indication transmission subsystems are chosen, modulation format, power level etc. send to the mobile radio station of being chosen by forward link.
In this exemplary embodiment, the data of the message on control channel or the F-PDCCH on data channel or F-PDCH are transmitted.Control channel can be used for identifying the reception mobile radio station of the data on the F-PDCH, and is identified at other used in communication session messaging parameters.When F-PDCCH represented that a certain mobile radio station is transmission objectives, this mobile radio station should receive the decode the data from F-PDCH.After receiving these data, mobile radio station is made response with an information of representing transmission success or failure on reverse link.Retransmission technique well known in the art is widely used in the data communication system.
Mobile radio station can communicate with more than one base station, and this situation is called as soft handover.Soft handover can comprise that the former is called as More Soft Handoff from a plurality of sectors of a base station (or a base station transceiver subsystem BTS) and from a plurality of sectors of a plurality of BTS.Base station section in the soft handover is stored in the active set of mobile radio station usually.In the shared communication resource system, in the appropriate section as IS-95, IS-2000 or 1xEV-DV system, mobile radio station can make up the forward link signal of all sectored transmissions from active set at the same time.In the clear data system, in the appropriate section as IS-856 or 1xEV-DV system, the base station of mobile radio station from active set receives forward link data signal, and this base station is serving BS (being to determine according to the mobile radio station selection algorithm, as the algorithm of describing in the C.S0002.C standard).Also can receive other forward link signals from non-serving base stations, their example also will be done detailed description in the back.
Can in a plurality of base stations, receive reverse link signal,, keep the quality of reverse link usually for the base station in the active set from this mobile radio station.The reverse link signal that receives in a plurality of base stations can be made up.Usually, will carry out soft combination (soft combine) from the reverse link signal of the base station of diverse location needs very big network service bandwidth and very little delay, so the example system of listing is not above supported this point.In More Soft Handoff, the reverse link signal that the place, a plurality of sector in single BTS receives can make up without network signal.In above-mentioned example system; though in protection scope of the present invention, can use the reverse link signal combination of any kind; but quality is being kept in power of reverse link control, thereby makes and locate reverse link frame is successfully decoded at a BTS (switched diversity).
In system 100, also can carry out reverse link data transmission.Can send control data on the forward link with described reception and transmission subsystem 210-230 and 250, with the transfer of data on commander's reverse link.Mobile radio station 106 also can send control information on reverse link.Can visit the shared communication resource (promptly with the various mobile radio stations of communicating by letter in one or more base stations 104 106, reverse chain channel, it distributes in 1xEV-DV changeably, perhaps, in IS-856 fixed allocation), to respond various access control and rate control techniques, their example will be described below.Can determine the distribution of reverse link resources with scheduler 140.Describe in further detail below and be used for the exemplary of Reverse link data communication and control and data signal.
Exemplary base station and mobile radio station embodiment
Fig. 3 is the block diagram of the radio communication device such as mobile radio station 106 or base station 104.A part of parts that module shown in this embodiment normally comprises in base station 104 or the mobile radio station 106.Those skilled in the art can be applicable to embodiment shown in Figure 3 any amount of base station or mobile radio station configuration.
In antenna 310 place's received signals, and it is delivered to receiver 320.Receiver 320, is carried out and is handled as above-mentioned standard according to one or more wireless system standards.Receiver 320 is carried out various processing, arrives baseband-converted, amplification, analog-to-digital conversion, filtering etc. as radio frequency.Various reception techniques are known in the art.When this device was mobile radio station or base station respectively, receiver 320 can be used for measuring the channel quality of forward link or reverse link, but had for clarity sake only shown an independently channel quality estimators 335 here, also will elaborate below.
In demodulator 325,, the signal from receiver 320 is carried out demodulation according to one or more communication standards.In an exemplary embodiment, use be can demodulation 1xEV-DV signal demodulator.In other embodiments, can support other standards, and embodiment can support multiple communication format.Demodulator 330 can be carried out other required various functions of form of RAKE reception, equilibrium, combination, deinterleaving, decoding and received signal.In the art, various demodulation techniques are known.In base station 104, demodulator 325 will carry out demodulation according to reverse link.In mobile radio station 106, demodulator 325 will carry out demodulation according to forward link.Data described herein and control channel all are the examples that can receive in receiver 320 and demodulator 325 with the channel of demodulation.According to the signaling on the control channel, carry out the demodulation of forward data channel (FDC), as mentioned above.
The data of message decoder 330 receiving demodulations, and extract target and point to the mobile radio station 106 on forward link or the reverse link or the signal or the message of base station 104 respectively.330 pairs of message decoder are various to be used for setting up in system, to keep and the message of finished call (comprising speech or data session) is decoded.Message can comprise channel quality indication, power control messages or the control channel message such as C/I measures, is used for forward data channel (FDC) is carried out demodulation.When transmitting on reverse or forward link respectively, various control informations can be decoded in base station 104 or mobile radio station 106.For example, what describe below is request message and authorization messages, is used for the reverse link data transmission that is created on mobile radio station or base station is respectively dispatched.Various other type of messages are known in the art, and, can in the various communication standards of supporting, stipulate.Message is delivered to processor 350, to be used for subsequent treatment.The part or all of function of message decoder 330 can be carried out in processor 350, although for clarity sake provided an independently module here.Perhaps, demodulator 325 can be decoded to customizing messages, and it is directly sent to processor 350 (single-bit messages is an example as ACK/NAK or power control rise/down command).Also will describe various signals and the message used among the embodiment that discloses below in detail here.
Channel quality estimators 335 is connected to receiver 320, and it is used for carrying out the various power level estimation of above-described process, and is used for used various other processing of communicating by letter, as demodulation.In mobile radio station 106, can carry out C/I and measure.In addition, any signal or the channel that use in can measuring system in the channel quality estimators 335 of a given embodiment.In base station 104 or mobile radio station 106, can estimated signal strength, as receiving pilot power.Only be for for the purpose of clear, just channel quality estimators 335 shown a standalone module here.Usually such module can be integrated in another module, as receiver 320 or demodulator 325.According to estimated signal or system type, can carry out various types of signal strength signal intensities and estimate.Usually, in protection scope of the present invention, the channel quality measures estimation module of available any kind replaces channel quality estimators 335.In base station 104, the channel quality estimation result is passed to processor 350, to be used for scheduling or definite reverse link circuit quality, also will be described further below this.Channel quality estimation can be used for determining that needs raise or the downward modulation power control command drives forward direction or power of reverse link arrives the set point of expection.The set point of expection can be determined with the exterior ring power controlling mechanism.
Transmit via antenna 310.In transmitter 370,,, format transmitting as top listed those according to one or more wireless system standards.The examples of members that may comprise in the transmitter 370 is amplifier, filter, digital-to-analogue (D/A) transducer, radio frequency (RF) transducer etc.The data that modulator 365 will send offer transmitter 370.Data and control channel can format according to multiple form, to transmit.Can in modulator 365, format in the data of transmitting on the forward link data channel, according to the speed and the modulation format of dispatching algorithm indication, according to C/I or other channel quality measurements.Scheduler as above-mentioned scheduler 240, can reside in the processor 350.Equally, can command transmitter 370, send according to power level according to dispatching algorithm.The examples of members that can be integrated in the modulator 365 comprises various types of encoders, interleaver, frequency multiplier and modulator.Be applicable to the reverse link design of 1xEV-DV system, comprise exemplary modulation format and access control, also be described below.
Message builder 360 can be used for producing various types of message, just as described herein.For example, C/I message can be generated, on reverse link, to transmit in mobile radio station.Various control informations can generate in mobile radio station 106 or base station 104, to transmit on forward link or reverse link respectively.For example, request message that describes below and authorization messages are used to dispatch reverse link data transmission, produce in mobile radio station or base station respectively.
Can will in demodulator 325, receive and the data passes of demodulation arrive processor 350, being used for speech or data communication, and be delivered to various miscellaneous parts.Equally, data to be sent can be directed to modulator 365 and transmitter 370 from processor 350.For example, various data are used and can be existed in the processor 350, perhaps, exist in another processor (not shown) that comprises in radio communication device 104 or 106.Base station 104 can be connected to one or more external networks, as the Internet (not shown) via other devices that do not show.Mobile radio station 106 can comprise that a link leads to external device (ED), as the laptop computer (not shown).
Processor 350 can be general purpose microprocessor, digital signal processor (DSP) or application specific processor.Processor 350 can be carried out part or all of function and any other required processing of radio communication device of receiver 320, demodulator 325, message decoder 330, channel quality estimators 335, message builder 360, modulator 365 or transmitter 370.Processor 350 can link to each other with specialized hardware, to assist these tasks (not showing details).Data or Voice Applications can be external, and the laptop computer that connects as the outside or be connected to network may operate on the Attached Processor in radio communication device 104 or 106 (not shown)s, perhaps, may operate on its processor 350.Processor 350 links to each other with memory 355, the instruction that can be used for storing data and carry out various process described herein and method.It will be appreciated by those skilled in the art that memory 355 can comprise one or more various types of memory elements, they are whole or in part in the embedded processor 350.
Typical communication system can comprise a channel or a plurality of dissimilar channel.More particularly, use one or more data channels usually.Can also use one or more control channels, although band inner control signaling can be included in the data channel.For example, in the 1xEV-DV system,, forward packet data control channel (F-PDCCH) and forward packet data channel (F-PDCH) have been defined respectively for sending control and data.Be described in detail in the various exemplary channel of reverse link data transmission below.
The design of 1xEV-DV reverse link is considered
The various factors that will consider when this section is described in exemplary embodiment of reverse link of design wireless communication system.Among a lot of embodiment that are discussed in further detail below, signal, parameter and the process relevant have been used with 1xEV DV standard.The same with various aspects described herein, to the description of this standard just for purpose of explanation, and in protection scope of the present invention, its combination is applicable to any amount of communication system.This is saved the part of making various aspects of the present invention and sums up, although it is not exhaustive.In the joint of back, will be described in further detail, wherein, also describe additional aspect exemplary embodiment.
Under many circumstances, reverse chain-circuit capacity is by interference-limited.The base station is distributed available reverse link communication resources according to service quality (QoS) requirement of each mobile radio station to mobile radio station, with efficient utilization, thereby improves throughput.
The utilization rate that improves reverse link communication resources relates to a lot of aspects.A factor of considering is the mixing from the rl transmission that is scheduled of each mobile radio station, and each transmission may be at the channel quality of experience variation preset time.In order to improve total throughput (total data that all mobile radio stations send in the honeycomb), preferably make full use of whole reverse link, in case when having reverse link data to be sent.In order to fill up available capacity, the flank speed that can authorize mobile radio station can support according to them conducts interviews, and can authorize other mobile radio station visits, till reaching this capacity.The factor that the base station will be considered when decision is dispatched which mobile radio station is the data volume that the maximum rate that can support of each mobile radio station and each mobile radio station will send.Can select to support the more mobile radio station of high-throughput, and selective channel is not supported other mobile radio stations of high throughput.
Another factor of considering is the needed service quality of each mobile radio station.Go to postpone to the visit of a mobile radio station and do not select mobile radio station though can have hope that channel can improve in arms than good position,, in order to satisfy the service guarantee of minimum quality, may need to authorize the mobile radio station that does not reach optimality criterion to conduct interviews.Therefore, predetermined data throughout may not be absolute maximum, but is maximum under the situation of having considered channel conditions, available mobile radio station transmitting power and service request.Desired is that any configuration can both reduce the signal to noise ratio of selected combination.
The various scheduling mechanisms that describe below can make mobile radio station send data on reverse link.One type rl transmission relates to: the mobile radio station request sends on reverse link.The base station judges whether to exist the available resources that satisfy this request.Can make mandate, send to grant.Before can sending reverse link data, this between mobile radio station and the base station shaken hands and introduced delay.For the reverse link data of particular type, delay may be acceptable.Other types may be more responsive to time-delay, and the other technologies of describing in detail below that are used for rl transmission can reduce delay.
In addition,, need to consume reverse link resources,, need to consume forward link resources, that is, send and authorize in order to respond this request in order to ask transmission.When the channel quality of mobile radio station was very low, promptly away under base station (low geometry) or the deep fade situation, arriving the required power of mobile radio station on the forward link can be higher.The various technology that describe below can reduce the quantity or the required transmitting power of required request of reverse link data transmission and mandate.
Their required forward direction and reverse link resources are supported in delay and the saving introduced for fear of being shaken hands by request/mandate, support automatic rl transmission pattern.Mandate not asked or be waited for to mobile radio station can and do not send with limited rate sending data on reverse link.
Also the transmission rate according to the mobile radio station of authorizing or sending is automatically revised in expectation under the situation of not authorizing expense.For this reason, can be with the rate controlled order with being implemented in automatically and based on the scheduling of request/mandate.For example, Management Information Base can comprise an increase, reduce and keep the order of current transmission rate.Such rate controlled order can be addressed to each mobile radio station independently, or organizes mobile radio station more.Describe various exemplary rate controlled order, channel and signals below in detail.
One or more mobile radio stations are distributed to a part of reverse chain-circuit capacity in the base station.Mobile radio station to granted access gives highest power level.Here in the exemplary embodiment of Miao Shuing, reverse link resources is to utilize business and pilot tone (T/P) recently to distribute.Because the pilot signal of each mobile radio station is all by power control carrying out adaptive control, so appointment T/P is than being illustrated in the available horsepower that sends data on the reverse link.The base station can give specific authorized to one or more mobile radio stations, indicates for the specific T/P value of each mobile radio station.The base station can also ask the residue mobile radio station of visit to give public mandate to having, and allows these to remain the maximum T/P value that mobile radio stations send with indication.Transmission, independent and public mandate and rate controlled automatic and that dispatched are described in further detail below.
Various dispatching algorithms are known in the art, also have more algorithms to remain to be developed, they can be used for determining the various specific and public T/P value of authorizing and expecting the rate controlled order according to the quantity of the self-propagating probability of quantity, mobile radio station, the unresolved request of registration mobile radio station and size, expection average response and any amount of other factors to authorizing.In one example, based on service quality (QoS) priority, efficient and from the achievable throughput of this group request mobile radio station, make a choice.At U.S. Patent application No.10/651 public co-pending that submit to, that be entitled as " SYSTEMAND METHOD FOR A TIME-SCALABLE PRIORITY-BASEDSCHEDULER " on August 28th, 2003, disclose a kind of exemplary dispatching technique in 810, this application has transferred assignee of the present invention.Other reference comprises the United States Patent (USP) 5 that is entitled as " METHOD AND APPARATUS FOR REVERSE LINKRATESCHEDULING ", 914,950 and be entitled as the United States Patent (USP) 5 of " METHOD ANDAPPARATUS FOR REVERSE LINK RATE SCHEDULING ", 923,650, they have all transferred assignee of the present invention.
Mobile radio station can send a packet with one or more subdata bags, and wherein, each subdata bag comprises complete packet information (each subdata bag needn't be encoded identical, for each subdata bag, can use different codings or redundancy).Can adopt retransmission technique, for example, repetitive requests (ARQ) is guaranteed reliable transmission automatically.Therefore, if first sub data packets of receiving (for example is free from mistakes, use CRC), then send a certainty and confirm (ACK), and no longer send additional subdata bag (each subdata bag comprises complete packet information with a kind of form or other forms) to mobile radio station.If first sub data packets is not correctly received, then send one and deny signal (NAK), and then send second sub data packets to mobile radio station.The base station can be made up the energy of this two sub data packets, and attempts decoding.This process can ad infinitum repeat, but will specify the maximum quantity of subdata bag usually.In the exemplary embodiment of Miao Shuing, can send four packets at most here.Therefore, when receiving additional subdata bag, the correct probability that receives is improved.Describe the variety of way that ARQ response, rate controlled order and mandate are made up below in detail, with provide the transmission rate that has the expected degree flexibility ratio and can accept the expense degree and.
As noted earlier, data or the transmission of whether using automatic transmission to transmit to have low time delay in decision of request higher rate and wait for public or during special delegated authority, mobile radio station can be traded off between throughput and time delay.In addition, for given T/P, mobile radio station can select data rate to adapt to time delay or throughput.For example, if the transmitted bit of mobile radio station is less, just can determine that low time delay is better.For available T/P (may be to transmit maximum automatically in this example, but also can be specific or public mandate T/P), mobile radio station can be selected speed and modulation format, thereby it is very high to make the base station correctly receive the probability of first sub data packets.Where necessary, can retransmit, still, this mobile radio station probably is enough to send its data bit in a sub data packets.Here in each exemplary embodiment of Miao Shuing, each subdata wraps in 5 milliseconds interior transmission of time period.Therefore, in this example, mobile radio station can be carried out automatic transmission immediately, just receives it in the base station probably after 5 milliseconds the time interval.Certainly, should be noted in the discussion above that mobile radio station can use the validity of additional subdata bag to improve the data quantity transmitted for given T/P institute.So, mobile radio station can select automatically transmission reduce with request with authorize relevant time delay, and the quantity (so also reducing time delay) that throughput and specific T/P can be traded off and reduce required subdata bag.Even selected whole subdata bags, for less transfer of data, also the time delay than request and mandate is low in transmission automatically.Those skilled in the art are to be understood that, thereby when wanting the data quantity transmitted increase to need to send a plurality of packet, can reduce overall delay by switching to request and grant format because request and the unfavorable result that authorizes will be finally by the increase throughput counteracting of the higher data rate of a plurality of packets.Can distribute the exemplary transmission speed and the form that are associated that this process is described in further detail with various T/P with one group below.
Reverse link data transmission
A target of reverse link design is: as long as there is reverse link data to be sent, the hot noise increase (RoT) at the place, base station is kept relative stability.Transmission on the reverse-link data channel is to handle under three kinds of different patterns:
Automatically transmission: this situation is used for the low business that postpones of needs.Mobile radio station can be according to sending immediately up to the specific transmission rate of being determined (that is, mobile radio station base station that its channel quality indication (CQI) is sent to) by serving BS.Serving BS is also referred to as scheduling base station or authorized base station.Self-propagating maximum allows that transmission rate can be waited dynamically and inform based on system loading, congestion condition by serving BS.
Be subjected to scheduled transmission: mobile radio station sends the estimated value of its buffer sizes, available horsepower and other possibility parameters.The base station determines when and allows mobile radio station to send.The purpose of scheduler is to limit the quantity of transmission simultaneously, thereby reduces the interference between the mobile radio station.Scheduler can allow in the area of mobile radio station between honeycomb to send than low rate; thereby reduce interference to adjacent cell; and strictly control RoT, thus the speech quality on the protection R-FCH, the feedback of the DV on the R-CQICH and affirmation (R-ACKCH), and the stability of system.
The rate controlled transmission: no matter mobile radio station is controlled (promptly authorized) or transmission automatically, transmission rate can the through-rate control command be adjusted in the base station.The example of rate controlled order comprises increase, reduces or keeps present rate.Can comprise additional order, how realize that to indicate speed changes (promptly increasing or reduction).The rate controlled order can be probabilistic or deterministic.
Each embodiment described herein comprises one or more features, is used to improve throughput, capacity and the total systems performance of the reverse link of wireless communication system.To the data division of 1xEV-DV system especially strengthen reverse complemental channel (R-ESCH) go up each mobile radio station transmission optimization description only for purpose of explanation.This joint is described various forward directions and the reverse chain channel that uses in detail in one or more exemplary embodiments.A subclass of the channel that these channels normally use in the communication system.
Fig. 4 shows the data of Reverse link data communication and an exemplary embodiment of control signal.Shown mobile radio station 106 communicates by various channels, and each channel is connected to one or more base station 104A-104C.Base station 104A is denoted as the scheduling base station.Other base stations 104B and 104C are the parts of the active set of mobile radio station 106.There is shown four types reverse link signal and four types forward link signal.Be described below.
R-REQCH
Mobile radio station uses reverse request channel (R-REQCH) to ask to carry out reverse link data transmission from the scheduling base station.In this exemplary embodiment, request transmission (below will be described in further detail) on R-ESCH.In this exemplary embodiment, the request on the R-REQCH comprise T/P that mobile radio station can support than, according to variable that changes channel conditions and buffer size (that is, waiting for data quantity transmitted).This request such as also can indicate at the service quality (QoS) of data to be transmitted.Should be noted in the discussion above that mobile radio station can have the single specific QoS grade for this mobile radio station, perhaps, for the different QoS grade of different kinds of business option.Upper-layer protocol can indicate QoS or other pre-period parameters (requiring as time-delay or throughput) of various data services.In another embodiment, with other reverse link signal, as Reverse Fundamental Channel R-FCH (for example, being used for voice service), the Reverse Dedicated Control Channel (R-DCCH) that combines and use can be used to carrying and inserts request.Usually, the request of access can be described to comprise logic channel, that is, back scheduling request channel (R-SRCH) can be mapped to it on any existing physical channel, for example on the R-DCCH.This exemplary embodiment back compatible existing C DMA system, as IS-2000 version C, and R-REQCH is a physical channel, so can be used for not existing the occasion of R-FCH or R-DCCH.For clarity sake, term " R-REQCH " is used for describing the access request channel of this embodiment explanation, but those skilled in the art can expand to these principles in the access Request System of any kind at an easy rate, and no matter insert the request channel be logic or physics.Before the needs request, can turn-off R-REQCH, disturb and conserve system capacity thereby reduce.
In this exemplary embodiment, R-REQCH has 12 input bits, comprises following: 4 bits indicate the maximum R-ESCH T/P ratio that mobile radio station can be supported; 4 bits indicate the data volume in the buffer of mobile radio station; 4 bits indicate QoS.One skilled in the art will appreciate that in other embodiments, can comprise any amount of bit and various other fields.
F-GCH
Send forward direction authorization channel (F-GCH) from the scheduling base station to mobile radio station.F-GCH can comprise a plurality of channels.In this exemplary embodiment, adopt public F-GCH channel to make public mandate, adopt one or more independent F-GCH channel to make independent mandate.Make mandate by the scheduling base station, to respond the last one or more requests of corresponding R-REQCH from one or more mobile radio stations.Authorization channel can be designated as GCH
x, wherein, subscript x represents channel number.Channel number 0 can be used to represent public authorization channel.If adopted N different channels, then subscript x scope is 1 to N.
To one or more mobile radio stations, can make independently and to authorize, each is authorized and grants T/P or the lower transmission by appointment on R-ESCH of the mobile radio station discerned.Make the mandate meeting on the forward link and introduce expense very naturally, because used some forward link capacity.Here detailed description is used to reduce and authorize the whole bag of tricks of the expense that is associated, and according to content disclosed herein, additive method also is conspicuous for those skilled in the art.
A consideration is the channel quality that the position of mobile radio station makes each mobile radio station experience variation.Therefore, for example, the mobile radio station of close base station (high geometry) has forward direction and reverse chain channel preferably, thus only need lower power for authorization signal, and may can utilize high data rate, be desired therefore for independent mandate.Away from the mobile radio station of base station (lowgeometry) or the experience mobile radio station than deep fade, can needing obviously, more power receives independent mandate reliably.Such mobile radio station may not be the best candidate of authorizing separately.To describe in detail below, the public mandate of this mobile radio station may be not too cheap aspect the forward link expense.
In this exemplary embodiment, adopted a plurality of independent F-GCH channel to provide the independent of respective numbers to authorize at special time.The F-GCH channel is a code division multiplexing.So just can send each mandate according to just arriving the required power level of particular desired mobile radio station.In another embodiment, can adopt an independent authorization channel, carry out time-multiplexed the various mandates of this quantity.In order on time-multiplexed independent F-GCH, to change the power of each mandate, can introduce additional complexity.In protection scope of the present invention, can adopt any signaling technology to transmit public or independent mandate.
In some embodiments, in order to support the independent mandate of larger amt sometime, adopted the independent authorization channel (being F-GCH) of larger amt.In this case, preferably limit the quantity of the independent authorization channel that each mobile radio station will monitor.In an exemplary embodiment, defined all each subclass of authorization channel separately.For distributing the independent authorization channel of a part, each mobile radio station monitors.This makes mobile radio station can reduce the complexity of processing, correspondingly reduces power consumption.The compromise dispatching flexibility that is is because the set (for example, can not make all independent mandates to the member in single group, because these members do not monitor one or more independent authorization channels) of independent mandate possibly can't at random be distributed in the scheduling base station.The loss that should be noted in the discussion above that flexibility ratio may not cause the loss of capacity.In order to illustrate, consider an example that comprises four independent authorization channels.Can distribute the mobile radio station that is numbered even number to monitor preceding two authorization channels, can distribute the mobile radio station that is numbered odd number to monitor latter two authorization channel.In another example, these subclass can be overlapping, for example, monitors the even number mobile radio station of first three authorization channel and the odd number mobile radio station of back three authorization channels of supervision.Obviously, the scheduling base station can not be distributed four mobile radio stations (even number or odd number) from a group arbitrarily.These examples are illustrative.In protection scope of the present invention, can adopt any amount of channel with any subclass configuration.
Can grant with public mandate and to have sent request but do not receive that as yet the residue mobile radio station of independent mandate sends on R-ESCH, all mandatory maximum T/P ratio of each mobile radio station of residue is specified in this public mandate.Public F-GCH also can be called as the public authorization channel of forward direction (F-CGCH).One or more independent authorization channels of mobile station monitors (or its subclass) and public F-GCH.Unless give independent mandate, otherwise if send public mandate, mobile radio station will send.Public mandate represents that remaining mobile radio station (public mandate mobile radio station) can send the maximum T/P ratio of the data with particular type QoS.
In this exemplary embodiment, each public mandate is effective in the subdata bag transmission intercal of some.In case receive public mandate, send the mobile radio station of asking but being authorized separately as yet and just can in follow-up transmission intercal, begin to send one or more encoder data bags.Authorization message can repeat repeatedly.Like this, compare independent mandate, public mandate sends with lower power level.Each mobile radio station can make up the energy from a plurality of transmission, reliably public mandate is decoded.Therefore, can be for selecting public mandate away from the mobile radio station of base station, for example, when independent mandate with regard to forward link capacity is regarded as when too expensive.But public mandate still needs expense, detailed description is used to reduce the various technology of this expense below.
The base station sends to each mobile radio station with F-GCH, and dispatch it the base station, to transmit new R-ESCH packet.Send it during also can or retransmitting, thereby force mobile radio station to change its T/P ratio for the transmission of the follow-up subdata bag of encoder data bag in the transmission of encoder data bag, necessary if congested control becomes.
In this exemplary embodiment, public mandate comprises 12 bits, comprising 3 bit type field, is used to indicate the form of back 9 bits.Remaining bit represents that the maximum of three kinds of mobile radio stations indicating in the type field allows the T/P ratio, and wherein 3 bits represent that the maximum of every class allows the T/P ratio.The mobile radio station type can be based on qos requirement or other standards.Also can adopt various other public grant format, this it will be apparent to those skilled in the art that.
In this exemplary embodiment, authorize separately for one and comprise 12 bits, comprising 11 bits represent that the maximum of mobile radio station ID and the mobile radio station that is authorized to send allows the T/P ratio, perhaps, tell mobile radio station to change its maximum clearly and allow the T/P ratio, comprise that maximum allows that the T/P ratio is set to 0 (that is, telling mobile radio station not send R-ESCH).These bits indicate mobile radio station ID (192 value in) and specify the maximum of mobile radio station to allow T/P (10 value in).In another embodiment, for the mobile radio station of appointment, a long mandate bit can be set.When growing when authorizing bit to be made as 1, permit mobile radio station on this ARQ channel, sends more greatly fix, the packet of predetermined quantity (available signaling is upgraded).Authorize bit to be made as 0 if should grow, and then authorized mobile radio station to send a packet.Use zero T/P value standard, can tell the R-ESCH transmission that mobile radio station turn-offs it, and this can be used for telling mobile radio station to turn-off its transmission on R-ESCH, if it is to turn-off that this length is authorized bit, single subdata bag transmission for the individual data bag, if should longly authorize bit to connect, for the long period.
In one exemplary embodiment, mobile radio station only monitors the F-GCH from serving BS.If mobile radio station is received a F-GCH message, so, the rate information in this F-GCH message of mobile station monitors, and ignore the rate controlled bit.Perhaps, mobile radio station can use such criterion: if reduce (that is, the RATE_DECREASE order will elaborate to this below) from any rate controlled indication expression speed of a base station outside the serving BS, then mobile radio station reduces its speed, even F-GCH indication speedup.
In another embodiment, mobile station monitors is from the F-GCH of a part of base station in all base stations or its active set.High-level signaling is indicated which F-GCH of this mobile station monitors and how to be made up them when channel allocation by switch indicating information or other message.Should be noted in the discussion above that and to carry out soft combination to a part of F-GCH from different base station.This possibility is informed mobile radio station.After the F-GCH from different mobile radio stations may carry out soft combination, at any time, may also have a plurality of F-GCH.Mobile radio station can be minimum mandate speed (or other criterions) with its transmission rate decision.
R-PICH
Reverse Pilot Channel (R-PICH) is transferred to base station the active set from mobile radio station.Can be in one or more mobile radio stations the power of measure R-PICH, to be used for power of reverse link control.Be that pilot signal can be used for being provided at amplitude and the phase measurement of using in the coherent demodulation known in the field.As mentioned above, the amount of transmission power that mobile radio station can be used (no matter being subject to the inherence restriction that the scheduling base station still is the transmitting power of mobile station amplifier) is divided between pilot channel, Traffic Channel and control channel.For higher data rate and modulation format, need additional pilot power.In order to simplify some problems that R-PICH is used for power control and avoids being associated with the instantaneous change of required pilot power, can distribute an additional channel, as a supplement or auxiliary pilot.Although pilot signal normally sends with known data sequence, just as disclosed here,, also can adopt the information of carrying signal to produce reference information, to carry out demodulation.In an exemplary embodiment, carry additional expection pilot power with R-RICH.
R-RICH
Mobile radio station use reverse rate indicating channel (R-RICH) indicates the transformat on the reverse traffic channel R-ESCH.This channel also can be called as reverse packet data control channel (R-PDCCH).
As long as when mobile radio station sends the subdata bag, will send R-RICH.When mobile radio station is idle on R-ESCH, also can indicates and send R-RICH by the zero-speed rate.The transmission of zero-speed rate R-RICH frame (showing the R-RICH that does not transmit R-ESCH) helps the base station detection mobile radio station free time, keeps power of reverse link control and other functions of this mobile radio station.
Beginning of the beginning of R-RICH frame and current R-ESCH transmission is time alignment.The frame duration of R-RICH may be same as or be shorter than the duration of corresponding R-ESCH transmission.R-RICH transmits the transmission form of concurrent R-ESCH transmission, as load, subdata bag ID and ARQ exemplary sequences number (AI_SN) bit and the CRC that is used for error detection occurs.An exemplary AI_SN is a bit, overturns when transmitting new data packets on specific ARQ, so be called as " color bit " sometimes at every turn.This can be used for asynchronous ARQ, wherein, does not have fixing sequential between the subdata bag transmission of packet.Color bit can be used for preventing that receiver from making up the subdata bag of a packet on the identical ARQ channel and the subdata bag of an adjacent data bag.R-RICH also can carry additional information.
R-ESCH
In the exemplary embodiment of Miao Shuing, strengthen reverse complemental channel (R-ESCH) here as the reverse link traffic data channel.R-ESCH can adopt any amount of transmission rate and modulation format.In an exemplary embodiment, R-ESCH has following attribute: support physical layer retransmission.Re-transmission when when first code being speed 1/4 code, these retransmit and use speed 1/4 codes, and use the energy combination.For first code is re-transmission greater than 1/4 speed, uses incremental redundancy.Following code is speed 1/5 code.Certainly, incremental redundancy also can be used for all these situations.
For can visit R-ESCH automatically and dispatched users the two, all support mixing automatic repeat requests (HARQ).
Utilize the set time between the re-transmission, can support a plurality of ARQ channel synchronization operations: the subdata bag that allows between the continuous subdata bag of identical data packet, to have fixed qty.Certainly, also allow the alternating expression transmission.For example,, use three sub data packets between the subdata bag to postpone, can support 4 channel ARQ for the 5ms frame.
Table 1 has been listed the example data rate that strengthens reverse complemental channel.Wherein described the subdata bag size of a 5ms, and the channel of following is fit to this selection.Also can select other subdata bag sizes, this is conspicuous to those skilled in the art.For these channels, do not adjust the pilot reference level, that is, mobile radio station can be selected T/P neatly, thus given operating point as target.This maximum T/P value sends by the forward direction authorization channel.If mobile radio station has exhausted transmitting power, then can use lower T/P, thereby make HARQ satisfy required QoS.The 3rd layer signaling message also can transmit by R-ESCH, and this system that makes can work under the situation that does not have R-FCH and/or R-DCCH.
Table 1 strengthens the reverse complemental channel parameter
| The bit number of each encoder data bag | The quantity of 5 milliseconds of time slots | Data rate (kbps) | Data rate/9.6kbps | Code rate | Symbol repetition factor before the interleaver | Modulation | The Walsh channel | Binary code symbol quantity in all subdata bags | The effective code check that comprises repetition |
| 192 192 192 192 | 4 3 2 1 | 9.6 12.8 19.2 38.4 | 1.000 1.333 2.000 4.000 | 1/4 1/4 1/4 1/4 | 2 2 2 2 | BPSKonI BPSKonI BPSKonI BPSKonI | ++-- ++-- ++-- ++-- | 6,144 4,608 3,072 1,536 | 1/32 1/24 1/16 1/8 |
| 384 384 384 384 | 4 3 2 1 | 19.2 25.6 38.4 76.8 | 2.000 2.667 4.000 8.000 | 1/4 1/4 1/4 1/4 | 1 1 1 1 | BPSKonI BPSKonI BPSKonI BPSKonI | ++-- ++-- ++-- ++-- | 6,144 4,608 3,072 1,536 | 1/16 1/12 1/8 1/4 |
| 768 768 768 768 | 4 3 2 1 | 76.8 102.4 153.6 307.2 | 4.000 5.333 8.000 16.000 | 1/4 1/4 1/4 1/4 | 1 1 1 1 | QPSK QPSK QPSK QPSK | ++-- ++-- ++-- ++-- | 12,288 9,216 6,144 3,072 | 1/16 1/12 1/8 1/4 |
| 1,536 1,536 1,536 1,536 | 4 3 2 1 | 76.8 102.4 153.6 307.2 | 8.000 10.667 16.000 32.000 | 1/4 1/4 1/4 1/4 | 1 1 1 1 | QPSK QPSK QPSK QPSK | +- +- +- +- | 24,576 18,432 12,288 6,144 | 1/16 1/12 1/8 1/4 |
| 2,304 2,304 | 4 3 | 115.2 153.6 | 12.000 16.000 | 1/4 1/4 | 1 1 | QPSK QPSK | ++--/+- ++--/+ | 36,864 27,648 | 1/16 1/12 |
| The bit number of each encoder data bag | The quantity of 5 milliseconds of time slots | Data rate (kbps) | Data rate/9.6kbps | Code rate | Symbol repetition factor before the interleaver | Modulation | The Walsh channel | Binary code symbol quantity in all subdata bags | The effective code check that comprises repetition |
| 2,304 2,304 | 2 1 | 230.4 460.8 | 24.000 48.000 | 1/4 1/4 | 1 1 | QPSK QPSK | ++--/+ - ++--/+ - | 18,432 9,216 | 1/8 1/4 |
| 3,072 3,072 3,072 3,072 | 4 3 2 1 | 153.6 204.8 307.2 614.4 | 16.000 21.333 32.000 64.000 | 1/5 1/5 1/5 1/5 | 1 1 1 1 | QPSK QPSK QPSK QPSK | ++--/+ - ++--/+ - ++--/+ - ++--/+ - | 36,864 27,648 18,432 9,216 | 1/12 1/9 1/6 1/3 |
| 4,608 4,608 4,608 4,608 | 4 3 2 1 | 230.4 307.2 460.8 921.6 | 24.000 32.000 48.000 96.000 | 1/5 1/5 1/5 1/5 | 1 1 1 1 | QPSK QPSK QPSK QPSK | ++--/+ - ++--/+ - ++--/+ - ++--/+ - | 36,864 27,648 18,432 9,216 | 1/8 1/6 1/4 1/2 |
| 6,144 6,144 6,144 6,144 | 4 3 2 1 | 307.2 409.6 614.4 1228.8 | 32.000 42.667 64.000 128.000 | 1/5 1/5 1/5 1/5 | 1 1 1 1 | QPSK QPSK QPSK QPSK | ++--/+ - ++--/+ - ++--/+ - ++--/+ - | 36,864 27,648 18,432 9,216 | 1/6 2/9 1/3 2/3 |
In an exemplary embodiment,, all use the turb0 coding for all speed.For the R=1/4 coding, use and the similar interleaver of current cdma2000 reverse link.For the R=1/5 coding, use and the similar interleaver of cdma2000 forward packet data channel.
The amount of bits of each encoder data bag comprises CRC bit and 6 tail bits.For encoder data bag size is 192 bits, uses the CRC of 12 bits; Otherwise, use the CRC of 16 bits.Suppose the 15ms that is spaced apart of 5-ms time slot, thereby make the ACK/NAK response if having time.If receive ACK, then do not send the packet of remaining time slots.
Above-described 5ms subdata embraces the continuous time and relevant parameter is as an example.By reading content disclosed herein, the combination that speed, form, subdata bag recurrence option, subdata embrace any amount of continuous time etc. all is conspicuous for those skilled in the art.Can adopt another 10ms embodiment, it uses 3 ARQ channels.In one embodiment, select single subdata to embrace continuous time or frame size.For example, can select 5ms or 10ms structure.In other embodiments, system can support the multiframe duration.
F-CPCCH
When not having F-FCH and F-DCCH, perhaps, when F-FCH and F-DCCH exist but be not exclusively used in a user, can use Forward Common Power Control Channel (F-CPCCH) that the various reverse chain channels that comprise R-ESCH are carried out power control.After the channel allocation, for mobile radio station has distributed a reverse link power control channel.F-CPCCH can comprise a plurality of power control sub-channels.
F-CPCCH can carry the power control sub-channel that is called as public congestion control subchannel (F-OLCH).The speed of exemplary congested control subchannel is generally 100bps, but also can adopt other speed.Individual bit (for reliability, can repeat) is called as busy bit (busy bit) here, and indication is in automatic transmission mode or public licensing mode or is in the mobile radio station increase of these two kinds of patterns simultaneously or reduces their speed.In another embodiment, independent licensing mode is also very sensitive to this bit.Can adopt the various embodiment of combination in any, with response F-OLCH with transport-type.This can probabilistic ground or certainty finish.
In one embodiment, busy bit is made as " 0 " and represents that the mobile radio station of busy bit being made response should reduce their transmission rate.Busy bit is made as the corresponding increase of " 1 " expression transmission rate.Also can adopt multiple other signaling mechanisms, this is conspicuous to those skilled in the art, describes various other examples below in detail.
During channel allocation, mobile radio station is distributed to these special power control channels.Power control channel all mobile radio stations in can control system, perhaps, one or more control channels can be controlled the variation subclass of mobile radio station.Should be noted in the discussion above that it is an example that this particular channel is used for congested control.
F-ACKCH
The forward direction acknowledgement channel, i.e. F-ACKCH is used for confirming the correct reception of R-ESCH also can be used for expanding existing mandate by the base station.The correct reception of the affirmation on the F-ACKCH (ACK) expression subdata bag.It is unnecessary that mobile radio station transmits this subdata bag again.Denying on the F-ACKCH (NAK) makes mobile radio station send another subdata bag, and this is by the subdata bag restriction of the allowed maximum amount of each packet.
Among the embodiment described in detail here, F-ACKCH is used to certainty or the negative acknowledgement that receives the subdata bag is provided, and indicates whether to issue rate controlled order (being described below in conjunction with the F-RCCH channel).
Exemplary embodiment among Fig. 5 has provided the F-ACKCH of one three value.This exemplary F-ACKCH comprises from the single indication of one or more base station transmits to a mobile radio station whether its expression is correctly received by relevant base station from the transmission of mobile radio station by R-ESCH.In one exemplary embodiment, send the F-ACKCH indication by each base station in the active set.Perhaps, F-ACKCH can be sent by the specified subset in the active set.The collection of base stations that sends this F-ACKCH can be called as the F-ACKCH active set.The F-ACKCH active set can be given mobile radio station by the 3rd layer of (L3) signaling, and can specify in switch indicating information (HDM) or via other technologies well known in the art during the channel allocation.
For example, F-ACKCH can be the three condition channel, and it has following value: NAK, ACK_RC and ACK_STOP.NAK represents must retransmit (still, if sent last sub data packets, then mobile radio station need use any available techniques, as request/mandate, rate controlled or transmission automatically, retransmits this packet) from the packet of mobile radio station.If NAK is corresponding to last sub data packets of a packet, then mobile radio station need monitor the rate controlled indication on the corresponding F-RCCH (following detailed description).
ACK_RC represents: the packet from mobile radio station needn't retransmit, and mobile radio station should monitor the rate controlled indication on the corresponding F-RCCH.ACK_STOP also represents and needn't retransmit.But in this case, for transmission next time, mobile radio station should be got back to automatic mode, removes non-mobile station and receives authorization messages by F-GCH (top describe in detail).
Whether the L3 signaling can indicate mobile radio station to the soft combination of F-ACKCH indication carrying out from different base station in its active set.This equates according to IS-2000 version C processing power control bit.For example, have an indication, for example ACK_COMB_IND, it be after channel allocation, send and in switching message, whether its expression mobile radio station makes up the F-ACKCH indication from different base station.Can adopt multiple technologies to send F-ACKCH, their example is as described below.Some example comprises independently TDM channel, TDM/CDM channel or extended formatting.
In this example, the result who has two types is from monitoring the F-ACK channel, and this depends on whether packet is identified.If receive NAK, multiple option is arranged then.Mobile radio station can send other subdata bag, till the subdata bag that has sent maximum quantity (in this exemplary embodiment, whether the subdata bag sends with the identical traffic form, and authorized transmissions starts regardless of by spontaneous transmission still being, also no matter there is rate controlled to change.In other embodiments, use any technology disclosed herein, can change subdata bag transformat).After the NAK of final subdata bag, the action that mobile radio station can be taked relevant with the respective rate control command (monitoring F-RCCH) stops to send (that is, if desired according to last mandate or rate controlled order, get back to automatic transmission), perhaps response is made in the mandate of new reception.
If receive ACK, it may or stop indication corresponding to the rate controlled order.If the expression rate controlled then monitors and following rate control channel (F-RCCH).If the result stops, then mobile radio station is not followed the tracks of the rate controlled indication on the F-RCCH, but gets back to automatic mode (sending with the maximum automatic rate that is distributed).If receive explicit mandate simultaneously at ACK_STOP, then mobile radio station is obeyed the order in this explicit mandate.
For example, at first consider single-unit activity set member or from the identical situation of the indication of all sectors (also representing) by ACK_COMB_M.In this case, single indication is arranged.When mobile radio station is received NAK (not Chuan Shu indication), so, mobile radio station retransmits next son packet (in the suitable time).If mobile radio station is not received the ACK of last sub data packets, then mobile radio station continues next packet (can retransmit the packet of makeing mistakes according to the retransmission algorithm that is adopted).But mobile radio station is indicated (that is, monitoring rate control channel) with this as rate controlled.
In this example, general standard following (being applicable to single-unit activity set member and a plurality of different F-ACKCH active set members).If certain indication is ACK_STOP or ACK_RC, then the result is ACK.If indication is not ACK_STOP or ACK_RC, then the result is NAK.So for rate controlled, if certain indication is ACK_STOP, mobile radio station will stop (that is, getting back to automatic mode, or response being made in mandate, if any).If indication is not that ACK_STOP and at least one indication are ACK_RC, then the indication on the rate control channel (F-RCCH) of corresponding base station is decoded.If sent last sub data packets and all indications all are NAK, then the indication on the rate control channel (F-RCCH) of all base stations is decoded.How to describe in these cases to rate controlled order in detail below in conjunction with F-RCCH and make response.
The ACK_RC order that combines with rate control channel can be regarded as one type order, and it is called as the ACK-and-Continue order.Mobile radio station can continue to send follow-up packet according to the various rate controlled orders (following detailed description example) that can send.The ACK-and-Continue order makes the base station can confirm the successful reception of packet, and meanwhile, mobile radio station uses and causes successfully receiving the mandate (according to the rate controlled order, having change) of packet to send.This has saved the expense of new mandate.
In the embodiment of F-ACKCH shown in Figure 5, the ACK_STOP symbol use on the occasion of, NAK uses the NULL symbol, the ACK_RC symbol uses negative value.On-off keying on the F-ACKCH (that is, not sending NAK) makes base station (especially being non-scheduling base station) can not send ACK, when the cost of so doing (required power) is too high.Like this, the base station just can be obtained compromise between forward link and reverse chain-circuit capacity, retransmits because the correct reception packet that is not identified may trigger at the time point of back.
In protection scope of the present invention, can adopt the technology of various transmission F-ACKCH.Can be in common signal channel with the independent signal combination of each mobile radio station.For example, the affirmation of a plurality of mobile radio stations response can be carried out time-multiplexed.In an exemplary embodiment, on a F-ACKCH, can support 96 mobile radio station ID at most.In order to support other mobile radio station ID, can adopt additional F-ACKCH.
Another example is that a plurality of confirmation signals with a plurality of mobile radio stations are mapped on one group of orthogonal function.The Hadamard encoder is a kind of one group of encoder on the orthogonal function that is used to be mapped to.Also can adopt other multiple technologies.For example, can use Walsh sign indicating number or other similar error correcting codes, information bit is encoded.If each independently subchannel have independently channel gain, then can be according to different power level transmission to the user.Exemplary F-ACKCH transmits the three values sign of a special use for each user.Each user monitors the F-ACKCH (perhaps, signaling can define less active set, to reduce complexity) from all base stations in its active set.
In various embodiments, two each Walsh sequence coverages by one 128 chip of channel cover.A channel is in the I channel, and another channel is in the Q channel.Another embodiment of F-ACKCH uses the Walsh sequence coverage of single 128 chips, to support 192 mobile radio stations simultaneously at most.For each three value sign, an exemplary embodiment is used the duration of 10-ms.
Recall, when mobile radio station had needs to use the packet that R-ESCH sends, it can be asked on R-REQCH.F-GCH can be used in the base station, makes response with a mandate.But this operation may be the comparison costliness.In order to reduce the forward link expense, F-ACKCH can send the ACK_RC sign, it by scheduling base station (or other, when the soft handover mandate supported from a plurality of base stations) to expand existing mandate (will carry out rate controlled) at low cost.This method is applicable to independent and public mandate.Use is expanded the current mandate that identical ARQ channel (will carry out rate controlled) is gone up another encoder data bag from the ACK_RC of authorized base station.
Should be noted in the discussion above that as shown in Figure 4, is not that each base station in the active set all needs loopback F-ACKCH.The set that sends the base station of F-ACKCH under soft changing state may be a subclass of active set.On June 30th, 2003 submitted to, exercise question is the U.S. Patent application No.10/611 public co-pending of " CODEDIVISION MULTIPLEXING COMMANDS ON A CODE DIVISIONMULTIPLEXED CHANNEL ", described the example technique that sends F-ACKCH in 333, this application has transferred assignee of the present invention.
F-RCCH
Forward direction rate control channel (F-RCCH) is from one or more base station transmits to a mobile radio station, with the notice speed adjustment of transmission next time.Can distribute a mobile radio station, monitor each member's who concentrates from F-ACKCH active set or one height indication.For clarity sake, be called as the F-RCCH active set by collection of base stations mobile station monitors, that send F-RCCH.The F-RCCH active set can be notified by the 3rd layer of (L3) signaling, this can during the channel allocation in switch indicating information (HDM) or adopt and well known to a person skilled in the art that various other modes indicate.
Fig. 6 shows an exemplary F-RCCH.This F-RCCH is ternary channel, has following value: RATE_HOLD, and the expression mobile radio station can send next packet according to the speed identical with current data packet; RATE_INCREASE, expression mobile radio station can certainty ground or probabilistic ground improve flank speed with respect to the transmission rate of current data packet, to send next packet; RATE_DECREASE, expression mobile radio station can certainty ground or probabilistic ground reduce flank speed with respect to the transmission rate of current data packet, to send next packet.
The L3 signaling can represent whether mobile radio station will make up the rate controlled indication from different base station.This is similar to the thing of using power control to be done among the IS-2000Rev.C.Therefore, there is an indication, RATE_COMB_IND for example, it sends when channel allocation and in switching message, whether the expression mobile radio station will carry out soft combination to the F-RCCH bit from different base station.The form that it will be appreciated by those skilled in the art that the channel of transmission such as F-RCCH is a lot, comprises the TDM/CDM channel or the extended formatting of independent TDM channel, combination.
In different embodiment, can adopt different rate controlled configurations.For example, all mobile radio stations can be by the single indication control of each sector.Perhaps, each mobile radio station can be by the difference indication control that is exclusively used in each mobile radio station of each sector.Perhaps, organize mobile radio station can be by their distribution indication control more.Adopt such configuration, the mobile radio station distribution with identical maximum QoS grade obtains identical indication.For example, an indication that has distributed can be controlled all mobile radio stations that those unique streams are designated as " trying one's best ", thereby reduces the load of these best effort stream.
In addition, available signaling disposes a mobile radio station, thereby this mobile radio station is only paid close attention to from serving BS or from the F-RCCH of all base stations in F-RCCH active set indication.Should be noted in the discussion above that if this mobile radio station only monitors the indication from serving BS, and, RATE_COMB_IND indicates this indication identical with from a plurality of base stations, so, mobile radio station pair and serving BS all indications on the same group mutually make up, and make a policy then.This group uses the collection of base stations of different rates control indication will be called as the current set of F-RCCH at any time.Therefore, if the configuration mobile radio station makes the F-RCCH indication of its concern from serving BS, so, the size of the current set of F-RCCH is 1.
What should imagine is that the service regeulations of F-RCCH can be adjusted by the base station.Be one group of exemplary rule below, be used to have the mobile radio station of the current set of single member F-RCCH.If receive RATE_HOLD, then mobile radio station does not change its speed.If receive RATE_INCREASE, then mobile radio station adds 1 with its speed (that is, a speed grade, top table 1 describes in detail its example).If receive RATE_DECREASE, then mobile radio station subtracts 1 with its speed.Should be noted in the discussion above that (ACK handles the action that is caused and represents that rate controlled is movable, will do detailed description below) when having only environment regulations that mobile radio station just monitors these indications.
One group of following rule is used to have the current set member's of a plurality of F-RCCH mobile radio station.Modification is with the simple rule of 1 speed of speed increase/minimizing.If receive ACK_STOP, then mobile radio station is got back to automatic rate.Otherwise if be designated as RATE_DECREASE, then mobile radio station subtracts 1 with its speed.If be designated as RATE_DECREASE and at least one base station the rate controlled action of an expression RATE_HOLD (handling institute by ACK causes) is not arranged, so, mobile radio station is kept identical speed.If be not designated as RATE_DECREASE, do not have base station indicated speed control and RATE_HOLD and at least one base station that rate controlled action and RATE_INCREASE indication are arranged, then mobile radio station adds 1 with its speed.
The embodiment that mandate, ARO and rate controlled order are made up
Above-mentioned aspect is summed up, can be authorized mobile radio station to carry out transmission automatically, its throughput may be limited, but can realize low the delay.In this case, mobile radio station can send under the situation of not asking, and reaches maximum R-ESCH T/P at most and compares T/P
Max_auto, it can be provided with and adjust by signaling by the base station.
In one or more scheduling base station, can determine scheduling, and, can distribute reverse chain-circuit capacity by mandate on F-GCH with the higher rate transmission.In addition, the transmission that can use the rate controlled order to revise to authorize previously or transmission automatically, expense is very low, thereby regulates the distribution of reverse chain-circuit capacity.Therefore, can strictly control reverse link loading, thereby protection speech quality (R-FCH), DV feedback (R-CQICH) and DV confirm (R-ACKCH) by scheduling.
Mandate can realize the control of detailsization to the transmission of mobile radio station separately.The selection of mobile radio station can be based on its distance and QoS with respect to the base station, thereby improves throughput, keeps the required grade of service simultaneously.Public mandate can realize notifying efficiently, especially for the mobile radio station away from the base station.
The combination of F-ACKCH channel and F-RCCH channel can realize " ACK-and-Continue " order effectively, thereby expands existing mandate with very low cost.(continuation can as mentioned above, also will be described in detail below by rate controlled).This is applicable to independent mandate and public mandate.On shared resource, on the 1xEV-DV reverse link, scheduling, mandate and the various embodiment that send and technology are at U.S. Patent application No.10/646 public co-pending that submit to, that be entitled as " SCHEDULED AND AUTONOMOUS TRANSMISSION ANDACKNOWLEDGEMENT " Augusts 21 in 2003, describe in 955, this application has transferred assignee of the present invention, so incorporate into herein with way of reference.
Fig. 7 shows illustrative methods 700, and one or more base stations can adopt it to come partition capacity, with request and the transmission of response from one or more mobile radio stations.The order that is noted that module shown in the figure is an example, and under the prerequisite that does not depart from protection range of the present invention, the order of various modules can exchange, and perhaps combines with other modules that do not show.Processing starts from frame 710.The base station receives it may is the transmission request that is sent by one or more mobile radio stations.Method 700 can ad infinitum repeat, so also may receive before may also uncommitted request, these requests can combine with new request, to estimate the transmission demand amount according to request.
In frame 720, one or more mobile radio stations can send the subdata bag so that received by the base station.These subdata bags that send previous mandates of basis (revising with previous rate controlled order potentially) or (also being to revise with previous rate controlled order potentially) transmission automatically.Quantity and/or other factors of self-propagating quantity, registration mobile radio station can be used for estimating self-propagating demand.
In frame 730, decode to any subdata bag that receives in the base station, and the corresponding subdata bag with former reception carries out soft combination alternatively, is received to judge these packets with whether having had no mistake.These decisions can be used for sending certainty or negatory affirmation to corresponding emission mobile radio station.As previously mentioned, HARQ can be used for the data packet transmission on the R-ESCH.That is to say that a packet can be sent out maximum specific times, is correctly received by at least one base station up to it.At the boundary of every frame, decode to the R-RICH frame in each base station, and the transformat on definite R-ESCH.Current R-RICH frame and previous R-RICH frame also can be used in the base station, make this decision.Perhaps, other information that extract also can be used in the base station from reverse Auxiliary Pilot Channel (R-SPICH) and/or R-ESCH, make this decision.Adopt determined transformat, under suitable situation, the previous subdata bag that receives is used in the base station, attempts the packet on the R-ESCH is decoded.
In frame 740, the base station operation dispatching.Can adopt any dispatching technique.According to asking, expect estimation and/or various other parameters of transmission, current channel conditions automatically, transmission demand can be considered in the base station, thereby operation dispatching distributes shared resource (being reverse chain-circuit capacity in this example).For different mobile radio stations, scheduling can be taked different forms.Example comprises: authorize (distribute, increase previous mandate or reduce previous mandate according to request), produce increase, reduce or keep previous authorize speed or self-propagating rate controlled order, perhaps, ignored request (mobile radio station is returned to automatic transmission).
In step 750, for each mobile radio station, the transmission of being received is handled in the base station.This comprises: the subdata bag that affirmation is received; Generate conditionally and authorize, with the response transmission request.Fig. 8 shows the illustrative methods 750 that generates mandate, affirmation and rate controlled order.It is applicable to illustrative methods shown in Figure 7 700, also can be used for additive method, and this is conspicuous to those skilled in the art.For each the movable mobile radio station in each step of method 700, method 750 can repeat, as mentioned above.
In decision block 805,, then enter frame 810 if do not receive the subdata bag of the current mobile radio station of handling.Do not need to confirm, do not send the rate controlled order yet.The two does not need F-ACKCH and F-RCCH to send, and two kinds of symbols all are not transmitted.In decision block 815, if receive request, then change in the decision block 820, otherwise this flow process stops.
In decision block 820, if between schedule periods, determined the mandate of this mobile radio station, then change frame 825 over to, authorize thereby on suitable F-GCH, send.Then, this flow process stops.Mobile radio station is in next suitable image duration, can send according to this mandate (following also will describe the example of sequential in conjunction with Figure 10-12 in detail).
Get back in the decision block 805,, then change decision block 830 over to if receive subdata bag from mobile radio station.(should be noted in the discussion above that to receive subdata bag and request, in this case, can carry out two branches of coming out from 805, for discuss clear for the purpose of, do not provide its details here).
In decision block 830,, then produce an ACK if the subdata bag of receiving is correctly decoded.Change in the decision block 835.If wish to carry out rate controlled (comprising that speed keeps i.e. " continuation "), then change in the frame 845.If do not wish to carry out rate controlled, then change in the frame 840.In frame 840, send an ACK_STOP by F-ACKCH, that is, produce a DTX.If produce to authorize this moment, then mobile radio station enters automatic transmission (perhaps must stop, if transmit disabled words automatically or do not disposed).Perhaps, also can send a new mandate, its covering is ceased and desisted order.Change in the decision block 820, thereby handle this decision-making, as mentioned above.
In frame 845, indicated rate controlled.Therefore, on F-ACKCH, transmit ACK_RC.Enter decision block 850.If wish speedup, then on F-RCCH, send RATE_INCREASE.Then, this flow process can stop.If do not wish speedup, then change in the decision block 860.In decision block 860,, then on F-RCCH, transmit RATE_DECREASE if wish to slow down.Then, this flow process can stop.Otherwise, on F-RCCH, transmit RATE_HOLD.In this example, speed keeps being represented by DTX.Then, this flow process can stop.
Return in the decision block 830,, then produce a NAK if the subdata Bao Wei that receives is correctly decoded.Change in the frame 875, on F-ACKCH, send NAK.In this example, NAK represents with DTX.Enter in the decision block 880, judge that the subdata bag of receiving is last sub data packets (that is, having reached the subdata bag re-transmission of maximum quantity).If not, in this example, then mobile radio station can retransmit according to previous transformat.Also can on F-RCCH, transmit DTX, shown in frame 895.(in this case, other embodiment can carry out other signalings, will describe its example below).Then, this flow process can finish.
If subdata bag that receive, unidentified is last sub data packets, then change over to the decision block 885, to judge whether to carry out rate controlled (comprising that speed keeps) from decision block 880.This is a kind of exemplary technology, be used for low expense expand previous mandate or automatically transmission (comprise previous rate controlled, if any).If do not wish to carry out rate controlled, then generate a DTX for F-RCCH.In this example, mobile radio station will send next sub data packets.Similar with decision block 835, if do not generate the new mandate of mobile radio station, then mobile radio station will enter automatic transmission (if available).Perhaps, can generate a new mandate, the available transmission of its regulation mobile radio station.Change in the decision block 820, to carry out this judgement, as mentioned above.
In decision block 885, carry out rate controlled if desired, then change decision block 850 over to.Can be created in speedup, deceleration or speed maintenance that F-RCCH goes up transmission, as mentioned above.Then, this flow process can stop.
In sum, if packet is correctly received, then the base station can send the certainty affirmation to mobile radio station, and can send a rate controlled message conditionally.
The base station can send ACK_STOP (on F-ACKCH), is transmitted to show packet, so mobile radio station returns automatic mode, to transmit next time.The base station can also send a new mandate, if necessary.Mobile radio station can send, and is up to the speed that transmission is next time authorized.In each case, do not transmit F-RCCH.In one embodiment, have only a service (or mandate) base station can produce mandate.In another embodiment, one or more base stations can produce mandate (details of handling this option will be described below).
The base station can send ACK_RC (on F-ACKCH) and RATE_HOLD (on F-RCCH), and to show: packet is transmitted, and the flank speed that mobile radio station can send next packet is identical with the transmission rate of current data packet.
The base station can send ACK_RC (on F-ACKCH) and RATE_INCREASE (on F-RCCH), and to show: packet is transmitted, and mobile radio station can improve the maximum rate of data packet transmission next time with respect to the transmission rate of current data packet.According to the ad hoc rules that base station and mobile radio station are all known, mobile radio station can improve speed.Speedup can be deterministic or probabilistic.It will be appreciated by those skilled in the art that the multiple rule that improves speed.
The base station can send ACK_RC (on F-ACKCH) and RATE_DECREASE (on F-RCCH), and to show: packet is transmitted, and mobile radio station can reduce the maximum rate of data packet transmission next time with respect to the transmission rate of current data packet.According to the ad hoc rules that base station and mobile radio station are all known, mobile radio station can changing down.Deceleration can be deterministic or probabilistic.It will be appreciated by those skilled in the art that the multiple rule of changing down.
If the base station does not successfully receive a certain packet, and, can further retransmit this packet (that is, not being last sub data packets), then the base station sends a NAK on F-ACKCH.Notice that in this example, F-RCCH is not transmitted.
If do not allow further re-transmission for this packet (that is, last sub data packets), then following may moving can be taked in the base station.The base station can (on F-ACKCH) send NAK and send authorization messages on F-GCH simultaneously, and to inform mobile radio station: this packet is not transmitted; For transmission next time, mobile radio station can be according to transmitting up to the speed of being authorized.In this case, do not transmit F-RCCH.In one embodiment, have only a service (or mandate) base station can produce mandate.In another embodiment, one or more base stations can produce mandate (details of handling this option will be described below).
The base station also can send NAK (on F-ACKCH) and RATE_HOLD (on F-RCCH), and to show: packet is not transmitted, and the flank speed that mobile radio station can send next packet is identical with the transmission rate of current data packet.
The base station also can send NAK (on F-ACKCH) and RATE_INCREASE (on F-RCCH), and to show: packet is not transmitted, and mobile radio station can improve the maximum rate of data packet transmission next time with respect to the transmission rate of current data packet.According to the ad hoc rules that base station and mobile radio station are all known, mobile radio station can improve speed.Speedup can be deterministic or probabilistic.
The base station also can send NAK (on F-ACKCH) and RATE_DECREASE (on F-RCCH), and to show: packet is not transmitted, and mobile radio station can reduce the maximum rate of data packet transmission next time with respect to the transmission rate of current data packet.Mobile radio station can changing down, the ad hoc rules of all knowing according to base station and mobile radio station.Reduction can be deterministic or probabilistic.
In another embodiment (Fig. 8 does not provide its details), can create the substitute of " NAK and stop ".For example, in the superincumbent situation, the DTX on the F-RCCH corresponding with NAK can't make a distinction with NAK-and-hold.An order forces to stop (or getting back to automatic transmission) if desired, then in the end before the sub data packets base station also can use NAK and rate controlled, to show: the speed about last sub data packets keeps (or increase or reduce) to mean stopping.For example, can distribute any one rate controlled order (that is, RATE_INCREASE, RATE_DECREASE or RATE_HOLD), under this particular case, represent to stop.Mobile radio station knows when last sub data packets is transmitted, and can correspondingly resolve the rate controlled order then.Should be when stopping after mobile radio station is known under the NAK situation last sub data packets transmission, then can send selected rate controlled order with the NAK of last subdata bag.The mobile radio station that receives the NAK of the rate controlled order that identifies and subdata bag (not being final) is known: to NAK (and the RATE_HOLD of last sub data packets, for example) mean that any mandate in the past all must be undone, and mobile radio station must be got back to automatic transmission.Be not used in the rate controlled order (that is, RATE_INCREASE or RATE_DECREASE) of this purpose, transmit, be still available with last subdata bag NAK.Another kind of way is, sends the mandate with zero (or lower) speed with last NAK, but this expense that need add.According to probability and other possibilities of " NAK-and-Stop ", those skilled in the art are easy to make balance between these are selected.Then, based on the probability of these different event, can optimize required expense.
Fig. 9 has provided the illustrative methods 900 that allows mobile station monitors and respond mandate, affirmation and rate controlled order.This method is applicable to one or more base stations of one or more mobile radio stations and above-mentioned employing method 700 and other base stations embodiment is combined use.
This flow process starts from frame 910.Mobile station monitors F-GCH, F-ACKCH and F-RCCH.Be noted that in the various embodiments described above mobile radio station can monitor one or more such channels.For example, also have a plurality of authorization channels, each mobile radio station can monitor one or more in them.Shall also be noted that and to receive these channels each from a mobile radio station, perhaps, when mobile radio station is in soft changing state, receive more than one channel.A channel can add message or the order of pointing to a plurality of mobile radio stations, so mobile radio station can extract its message of special sensing or order.
Can adopt other criterions, so that mobile radio station monitors one or more control channels conditionally.For example, as mentioned above, when sending ACK_STOP, do not send F-RCCH.Therefore, in this case, when receiving ACK_STOP, mobile radio station needn't monitor F-RCCH.Can specify a rule, when having only mobile radio station to send the request that can be responded, mobile radio station is just sought authorization messages and/or rate controlled order.
In the description to Fig. 9, suppose below: mobile radio station had sent a sub data packets in the past, and affirmation (comprising potential mandate or the rate controlled order) response to it is received in expectation.If do not authorize a certain request in the past, then mobile radio station still monitors mandate, with the request that sends before responding.Those skilled in the art can be applicable to this situation with method 900 at an easy rate.For the sake of clarity, these and other potential mobile radio station processing modules are repeated no more.
The processing of F-ACKCH starts from decision block 915.Mobile radio station extraction all F-ACKCH channels that it monitored for information about.As previously mentioned, between each member of mobile radio station and its F-ACKCH active set, may there be F-ACKCH.Can carry out soft combination to some F-ACKCH order, just specified as the L3 signaling.If mobile radio station is received at least one certainty affirmation, ACK_RC or ACK_STOP (on F-ACKCH), then current data packet is correctly received, so needn't transmit additional subdata bag again.Transmitting the speed that next packet (if any) allowed need determine.
In decision block 915, if receive ACK_STOP, then mobile radio station is known: the subdata bag that sends was correctly received in the past, needn't decode to the rate controlled order.
In decision block 920, mobile radio station judges whether to have received mandate on F-GCH.If then mobile radio station is authorized according to this and is sent next packet, shown in frame 930.In one embodiment, have only an authorized base station to make mandate.If receive ACK_STOP and authorization messages from the base station, then mobile radio station sends a new data packets according to being equal to or less than the speed of authorizing speed on identical ARQ channel.
In another embodiment, a more than base station can send mandate.If the base station coordination delegate also sends identical message, then mobile radio station can carry out soft combination with these mandates.When receiving different mandates, can adopt various rules, handle these situations.An example is, mobile radio station sends according to the maximum rate of appointment in the mandate of receiving, to avoid corresponding to the excessive interference in the honeycomb of corresponding authorized base station (comprise ACK_STOP, and not corresponding the mandate, this shows that transmission should get back to automatic mode).To those skilled in the art, various other modes also are conspicuous.If do not receive mandate in decision block 920, then mobile radio station must return automatic rate, shown in frame 925.Then, flow process finishes.
Get back to decision block 915,, then enter decision block 940 if do not receive ACK_STOP.If received ACK_RC, then the mobile station monitors certainty confirm (if any) from the corresponding F-RCCH of base station.Should be noted in the discussion above that between base station and the mobile radio station not to have F-RCCH, because the F-RCCH active set is a subclass of F-ACKCH active set.Should also be noted that corresponding message may be conflicted when mobile radio station is received F-ACKCH from a plurality of base stations.For example, may receive one or more ACK_STOP orders, also may receive one or more ACK_RC orders, also may receive one or more mandates, perhaps its combination.Those skilled in the art can understand the various rules that are used to hold these possibilities.For example, mobile radio station can determine may be minimum transmission permit (may from the ACK_STOP that not have mandate, have the ACK_RC of deceleration or have the more mandate of low value), and correspondingly send.This is similar to the technology of " OR-of-Downs " by name criterion.Such technology can be used for strictly avoiding the excessive interference adjacent cell.Perhaps, one or more base stations can have the priority of distributing to them, thereby one or more base stations can surpass other base stations (may have additional conditions).The priority of for example, scheduling (or mandate) base station may exceed other base stations that are in soft changing state.Other criterions also be can anticipate (as previously mentioned, may receive one or more NAK, but mobile radio station need not retransmitted yet.But, mobile radio station can add from base station unconfirmed rate controlled order or mandate, if necessary) in a similar manner.For ease of discussing, judge when a mobile radio station to receive ACK_STOP, ACK_RC, NAK or when authorizing that the possibility of result is, the regular collection of expection is applied to a plurality of reception orders, identifies order then.
If received ACK_RC, then change decision block 945 over to, begin to judge obey which kind of type rate controlled order.If the expression speedup then enters frame 950.Can on same ARQ channel, send next transmission according to the speed that increases than present rate.Then, flow process finishes.Equally, speedup can be deterministic or probabilistic.In addition, RATE_INCREASE may not cause speed immediately to increase, and may be in the transmission rate (that is, in mobile radio station use credit formula algorithm) of raising in the future from mobile radio station, and perhaps, RATE_INCREASE may cause the increase of a plurality of speed.In an exemplary credit cassette algorithm, mobile radio station is kept inner " balance/credit " parameter.When it is received RATE_INCREASE but can't increase its speed (because not having electricity or data), mobile radio station increases this parameter.When mobile radio station had electricity or data, it can use " credit/balance " of storage to select data rate.For those skilled in the art, the mode of various speedups is conspicuous.
If in decision block 945, do not show speedup, then enter in the frame 955, judge whether the indication deceleration.If indicated deceleration, then enter in the frame 960.Can on identical ARQ channel, send next transmission according to the speed that reduces than present rate.Then, flow process finishes.Equally, speedup can be deterministic or probabilistic.In addition, RATE_DECREASE may cause speed immediately to reduce, but in the transmission rate (that is, in mobile radio station use credit formula algorithm) of reduction in the future from mobile radio station, perhaps, RATE_DECREASE may cause the reduction of a plurality of speed.When an exemplary credit algorithm is used in the RATE_DECREASE environment, when mobile radio station obtains RATE_DECREASE but does not obey for a certain reason (for example, need to send emergency data), it obtains negativity credit, and this negativity credit is repaid after needing.For those skilled in the art, the mode of various decelerations is conspicuous.
If both do not indicated also not indication deceleration of speedup, that then receive is RATE_HOLD.Mobile radio station can send, shown in frame 965 according to the maximum rate that equates with the current data packet rate.Then, flow process finishes.
Get back in the decision block 940,, then determine to have received NAK if do not identify the ACK of any kind.In decision block 970, if data packet transmission still has if possible (that is, current subdata bag is not last subdata bag), then mobile radio station is on identical ARQ channel, and the subdata bag ID with after increasing retransmits this subdata bag, shown in frame 980.
In decision block 970, if current data packet is last subdata bag, then mobile radio station has been used up the re-transmission of this packet.Enter in the decision block 975, to judge whether to receive mandate (similar) to the mode shown in the top linking frame 920.If authorization messages be assigned to mobile radio station (no matter from single base station, still above base station, as previously mentioned), mobile radio station can send new packet according to being equal to or less than the speed of authorizing speed on identical ARQ channel.Then, enter above-mentioned frame 930.
In decision block 975, if do not receive mandate, then mobile station monitors F-RCCH active set obtains the rate controlled order, determines then to carry out the maximum rate that next data packet transmission is allowed on identical ARQ channel.When receiving a more than rate controlled order, can carry out aforesaid rate selection.Enter in the decision block 945 and continuation, as mentioned above.
An exemplary embodiment of mobile radio station can adopt various other technologies.Mobile radio station can the monitoring data bag number of times (that is, in the end not having certainty to confirm after the sub data packets) of deletion.The number of times of deleted quantity of data packets of statistics or continuous data bag deletion can be measured in a window (that is, sliding window).If mobile radio station finds that too many packet is deleted, then it can reduce the transmission rate of oneself, even if other orders (that is, RATE_HOLD or RATE_INCREASE) are represented in the rate controlled order.
In one embodiment, authorization messages can have the specific speed control bit and wants high priority.Perhaps, authorization messages can be regarded as having identical priority with the rate controlled bit.In this case, can revise speed determines.For example,, then use " OR-of-DOWN " or similar criterion,, determine next transmission rate according to all rate controlled orders (RATE_INCREASE, RATE_HOLD, RATE_DECREASE and ACK_STOP) if there is not authorization messages to be assigned to mobile radio station.When also receiving mandate, use " OR-of-DOWN " or similar criterion, according to all rate controlled orders (RATE_INCREASE, RATE_HOLD, RATE_DECREASE and ACK_STOP), determine next transmission rate, its result is compared with authorizing speed and selected less speed.
Can adopt signaling to dispose mobile radio station, thereby make mobile radio station only monitor that the F-RCCH from all base stations in serving BS or the F-RCCH active set indicates.For example, when RATE_COMB_IND shows the rate controlled order with from a plurality of base stations identical the time, mobile radio station can make up all indications in the group that identifies, and makes a policy then.The quantity of the difference indication of using at any time can be shown as the current set of F-RCCH.In one example, mobile radio station can only monitor the F-RCCH indication from serving BS, and in this case, the size of the current set of F-RCCH is 1.
In addition, as mentioned above, can adopt various criterions to come regulations speed, with the order on the response F-RCCH.These criterions can be adjusted by the signaling from the base station.In one example, one group of probability and step-length are arranged, be used for determining that mobile radio station increases or reduce its speed and amount.These probability and possible speed step-length can be upgraded by signaling, if necessary.
As mentioned above, can adaptation method 900, to comprise the various substitutes of the base station of having adopted method 750.For example, in one embodiment, not clearly definition " NAK and stop " order is because the DTX on the F-RCCH represents that together with NAK speed keeps.In another embodiment, can adopt " NAK and stop " function, with response method 750 described arbitrary technology.In addition, as above associated methods 750 is described such, in this exemplary embodiment, carries out on the packet border based on rate controlled or based on the speed change of authorizing.Can be contemplated that and to revise described method, change to specialize subdata parlor speed.
By reading content disclosed herein, it will be appreciated by those skilled in the art that, can process described herein and feature be made up by variety of way.For example, mobile radio station is only controlled by mandate by dominant base, rather than is controlled by other base station through-rate control bits.Perhaps, by mandate, also can control mobile radio station from a part of base station in all base stations or its active set.Can carry out soft combination to some F-GCH.The mode of operation of mobile radio station can set up by other message by the L3 signaling or during packet data call during the channel allocation.
Again for example, if a packet is correctly received, then dominant base can send ACK_STOP or ACK_RC.Can not use the rate controlled order, thereby use ACK_RC to represent " the ACK and continue " of this pattern.Under this environment, " ACKand continue " expression mobile radio station can send a new packet according to the speed identical with the packet that is identified.As previously mentioned, if sent ACK_STOP, then the base station can send a most important mandate on F-GCH, is assigned to MS.In this example, NAK represents " NAK and stop ", transmits together unless authorize NAK accordingly.In this case, non-dominant base also sends ACK_STOP or ACK_RC, and wherein, ACK_RC is not accompanied by the rate controlled order, thus expression " ACK and continue ".
Integrated under the exemplary dedicated mode of described a part of feature at another, mobile radio station can be controlled by a through-rate control bit (from the base station in its F-RCCH active set).Can establish this pattern by the L3 signaling during the channel allocation or other message during the packet data call.Under this pattern, if packet is not successfully received, then the base station sends NAK.When packet was correctly received, the base station sent ACK_STOP or ACK_RC with F-RCCH (RATE_HOLD, RATE_INCREASE or RATE_DECREASE).NAK after last sub data packets may be accompanied by F-RCCH (RATE_HOLD, RATE_INCREASE or RATE_DECREASE).
Example among Figure 10-12 shows the sequential chart of various channels described herein.These examples are not represented any specific selection of frame length, but the relative opportunity of explanation mandate, ACK and rate controlled (RC) indication.ACK indication, RC indication appear in the identical time interval with authorizing, thereby mobile radio station is received ACK, RC and authorization message about the identical time greatly, to be applied to next data packet transmission.In these examples, mobile radio station needn't monitor RC indication, unless it receives when confirming or when having sent all subdata bags (as top exemplary embodiment is described).Mobile station monitors is distributed to its ACK bit and is indicated with the corresponding RC of this specific ARQ sequence.For example, if having four ARQ sequences and mobile radio station to send on all ARQ, then mobile radio station monitors the ACK indication at every frame, monitors RC indication (if suitably) at every frame.Between the difference transmission, introduce empty frame, thereby how suitable, base station or mobile radio station can receive the decode to request, the transmission of subdata bag, mandate, affirmation and rate controlled order if having time.
Should be noted in the discussion above that these sequential charts are not exhaustive, but only be used for illustrating various aspects described herein.Those skilled in the art are to be understood that various combined sequence.
Figure 10 is the sequential chart with exemplary embodiment of the affirmation of combination and rate control channel.Mobile radio station sends request, to transmit on R-REQCH.So the base station sends mandate on F-GCH, to respond this request.Then, mobile radio station uses the parameter according to this mandate, sends first sub data packets.In the base station, this subdata Bao Wei is correctly decoded, as this subdata bag bust this is represented.The base station sends the ACK/NAK transmission on F-ACKCH, simultaneously transmission rate control command on F-RCCH.In this example, transmission be NAK, F-RCCH stop the transmission.Mobile radio station is received NAK, and, in response, retransmit second sub data packets.At this moment, the base station is correctly decoded second sub data packets, therefore, sends the ACK/NAK transmission on F-ACKCH, simultaneously transmission rate control command on F-RCCH.In this example, do not send additional mandate.Send ACK_RC, and issue rate controlled order (it may be represented according to the speedup of expection scheduling decision, deceleration or keep speed).Then, mobile radio station uses the parameter that is associated with this mandate, sends first sub data packets of next packet, and these parameters are made amendment as required by the rate controlled order on the F-RCCH.
Figure 11 is one to have the affirmation and the rate control channel of combination and also has the sequential chart of the exemplary embodiment of mandate newly.The transmission of request, mandate, subdata bag transmission (not being correctly decoded) and NAK is identical with preceding 8 frames shown in Figure 10.In this example, the transmission of second sub data packets is also correctly received and is received.But that the base station sends is not ACK_RC, but has sent ACK_STOP.If ACK_STOP is not attended by mandate, then mobile radio station will be got back to automatic transmission.But opposite is to have sent a new mandate.Mobile radio station needn't monitor F-RCCH in this frame.Then, mobile radio station sends the first subdata bag of next packet according to should newly authorizing.
Figure 12 is the sequential chart of an affirmation with combination and rate control channel but the do not have exemplary embodiment of authorizing.This example and Figure 10 are basic identical, and difference is: do not send mandate, to respond original mobile radio station request.Therefore, send the first subdata bag transmission of first packet with automatic rate.In the base station, this subdata bag also is correctly decoded.Second sub data packets also is correctly decoded, and ACK_RC sends with the rate controlled order.Then, mobile radio station sends next packet with potential adjusted speed.The explanation of this example can only be used the rate controlled order and use authority not, optionally changes mobile radio station speed.
Should be noted in the discussion above that in other embodiments, be with or without under the situation of last request that mobile radio station can use rate controlled and transmission automatically.Brief can be used for alleviating congested, when overhead provision, can speedup, even if BS does not know demand data, because send request.
Should be noted in the discussion above that in above-mentioned all embodiment, under the prerequisite that does not depart from protection scope of the present invention, method step can exchange.Signal, parameter and the process that is associated with the 1xEV-DV system mentioned in the description here under many circumstances, but protection scope of the present invention is not limited thereto.Those skilled in the art can be at an easy rate apply to the principle here in various other communication systems.To those skilled in the art, these and other modifications will be conspicuous.
It will be appreciated by those skilled in the art that information and signal can represent with multiple different technologies and method.For example, data, instruction, order, information, signal, bit, symbol and chip voltage available, electric current, electromagnetic wave, magnetic field or particle, light field or particle or its combination in any of mentioning in the specification in the above represented.
Those skilled in the art can understand that also various exemplary box, module, circuit and the algorithm steps of describing in conjunction with the disclosed embodiments all can be implemented as electronic hardware, computer software or the combination of the two here.In order to be clearly shown that the interchangeability between the hardware and software, more than various exemplary assembly, frame, module, circuit and steps are all carried out generally description with its functional form.This functional be to realize or realize depending on the design constraint that specific application and whole system are applied with software with hardware.Those skilled in the art can realize described functional at each specific application in many ways, and still the result of this realization should not be construed as and causes deviating from scope of the present invention.
Utilize general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logical devices, discrete gate or transistor logic, discrete hardware components or the combination in any among them, can realize or carry out various exemplary logic diagram, module and the circuit described in conjunction with embodiment disclosed herein.General processor may be a microprocessor, but in another kind of situation, this processor may be processor, controller, microcontroller or the state machine of any routine.Processor also may be implemented as the combination of computing equipment, for example, and the combination of DSP and microprocessor, a plurality of microprocessor, one or more microprocessor or any other this kind structure in conjunction with the DSP core.
In conjunction with the step of described method of embodiment disclosed herein or algorithm can directly be presented as hardware, the software module carried out by processor or the combination of these two.Software module may be present in the storage media of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, mobile disk, CD-ROM or any other form well known in the art.The coupling of a kind of exemplary storage medium and processor, thus make processor can be from this storage media read message, and can be to this storage media write information.In replacing example, storage media is the part of processor.Processor and storage media may be present among the ASIC.This ASIC may be present in the subscriber station.Replace in the example at one, the discrete assembly that processor and storage media can be used as in the subscriber station exists.
The foregoing description of described disclosed embodiment can make those skilled in the art can realize or use the present invention.To those skilled in the art, the various modifications of these embodiment are conspicuous, and the general principles of definition here also can be applied to other embodiment on the basis that does not depart from the scope of the present invention with purport.Therefore, the embodiment that the present invention is not limited to illustrate here, but consistent with the widest scope that meets principle disclosed herein and novel feature.
Claims (63)
1, a kind of device comprises:
Message builder is used for:
Generate first message, described first message comprises confirms indication and rate controlled indication; And
Be designated as condition with described rate controlled, generate second message.
2, device as claimed in claim 1, wherein, described second message comprises the rate controlled order.
3, device as claimed in claim 2, wherein, described rate controlled order is in a plurality of values, wherein, the one or more expression speed in described a plurality of values increase.
4, device as claimed in claim 2, wherein, described rate controlled order is in a plurality of values, wherein, the one or more expression speed in described a plurality of values reduce.
5, device as claimed in claim 2, wherein, described rate controlled order is in a plurality of values, wherein, the one or more expression speed in described a plurality of values keep.
6, a kind of device comprises:
Receiver is used to receive packet;
Decoder is used for the packet that is received is decoded; And
Message builder is used for:
Generate first signal, described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
When the value representation rate controlled order of described first signal, generate secondary signal conditionally, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
7, device as claimed in claim 6 also comprises transmitter, is used to launch described first signal, launches described secondary signal conditionally.
8, device as claimed in claim 6, wherein, described receiver also is used to receive one or more transmission requests and one or more automatic transmission, described device also comprises scheduler, be used to distribute shared resource, to respond described one or more transmission request and described one or more automatic transmission.
9, device as claimed in claim 8, wherein, described message builder generates authorization messages, with the response transmission request also according to described distribution.
10, a kind of device comprises:
Receiver is used to receive first signal, and, according to the rate controlled indication, receive secondary signal conditionally; And
Message decoder is used for the rate controlled indication from first signal that is received is decoded.
11, device as claimed in claim 10, wherein, described first signal comprises affirmation.
12, device as claimed in claim 10, wherein, described secondary signal comprises the rate controlled order.
13, device as claimed in claim 12, wherein, described rate controlled order is in a plurality of values, wherein, the one or more expression speed in described a plurality of values increase.
14, device as claimed in claim 12, wherein, described rate controlled order is in a plurality of values, wherein, the one or more expression speed in described a plurality of values reduce.
15, device as claimed in claim 12, wherein, described rate controlled order is in a plurality of values, wherein, the one or more expression speed in described a plurality of values keep.
16, device as claimed in claim 10 also comprises being used to send transmitter of data packets.
17, device as claimed in claim 16, wherein, when described first signal points out that the packet that is sent is not identified, the described packet of described transmitter retransmits.
18, device as claimed in claim 16, wherein, described secondary signal comprises the rate controlled order, and the speed of described transmitter to determine according to the rate controlled order sends second packet.
19, a kind of base station comprises:
Message builder is used for:
Generate first message, described first message comprises confirms indication and rate controlled indication; And
Be designated as condition with described rate controlled, generate second message.
20, station, an a kind of distant place comprises:
Receiver is used to receive first signal, and, according to the rate controlled indication, receive secondary signal conditionally; And
Message decoder is used for the rate controlled indication from first signal that is received is decoded.
21, a kind of wireless communication system that comprises the base station, described base station comprises:
Message builder is used for:
Generate first message, described first message comprises confirms indication and rate controlled indication; And
Be designated as condition with described rate controlled, generate second message.
22, a kind of wireless communication system that comprises station, a distant place, station, a described distant place comprises:
Receiver is used to receive first signal, and, according to the rate controlled indication, receive secondary signal conditionally; And
Message decoder is used for the rate controlled indication from first signal that is received is decoded.
23, a kind of method of rate control comprises:
Generate first signal, described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
When the value representation rate controlled order of described first signal, generate secondary signal conditionally, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
24, a kind of method of rate control comprises:
Receive packet;
Described packet is decoded;
Generate first signal, whether the packet that described first signal indication is received is correctly decoded and represents whether will issue the rate controlled order; And
When the order of issue rate controlled, generate the secondary signal that comprises described rate controlled order.
25, method as claimed in claim 24, wherein, described first signal comprises more than first one in the value, an expression in described more than the first individual values is to the affirmation that is correctly decoded and do not have the rate controlled order.
26, method as claimed in claim 25, wherein, expression is once authorized before the affirmation that is correctly decoded and the described value that do not have the rate controlled order are cancelled.
27, method as claimed in claim 24, wherein, described first signal comprises in more than first value, affirmation and the rate controlled order of an expression to being correctly decoded in described more than the first individual values.
28, method as claimed in claim 24, wherein, described first signal comprises a value, this value representation not with the denying corresponding transmission and do not have the rate controlled order of decoded data packets.
29, method as claimed in claim 24, wherein, described rate controlled order is in more than second value, wherein, the one or more expression speed in described more than the second individual values increase.
30, method as claimed in claim 24, wherein, described rate controlled order is in more than second value, wherein, the one or more expression speed in described more than the second individual values reduce.
31, method as claimed in claim 24, wherein, described rate controlled order is in more than second value, wherein, an expression speed in described more than the second individual values keeps.
32, method as claimed in claim 31, wherein, described secondary signal comprises that an expression keeps not having the value of transmission for speed.
33, method as claimed in claim 24 also comprises:
Receive one or more transmission requests;
Receive one or more automatic transmission; And
Distribute shared resource, to respond described one or more transmission request and described one or more automatic transmission.
34, method as claimed in claim 24 also comprises: generate and authorize, to respond received transmission request.
35, method as claimed in claim 34 wherein, when generating mandate, does not generate described secondary signal.
36, method as claimed in claim 24 also comprises:
Send described first signal; And
When the order of issue rate controlled, send described secondary signal conditionally.
37, method as claimed in claim 36 also comprises: when issue is authorized, send described mandate.
38, method as claimed in claim 24, wherein, the packet that is received is the subdata bag.
39, method as claimed in claim 39 wherein, is carried out described decoding, to respond the corresponding subdata bag of before having received, if there is the subdata bag.
40, a kind of method of rate control comprises:
Receive first signal, described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
When the value representation rate controlled order of first signal that is received, receive secondary signal conditionally, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
41, a kind of method of rate control comprises:
Send packet;
Receive first signal, whether the packet that described first signal indication is sent is identified and whether will issues the rate controlled order; And
When the order of issue rate controlled, receive the secondary signal that comprises described rate controlled order.
42, method as claimed in claim 41, wherein, described first signal comprises more than first one in the value, an expression in described more than the first individual values is to the affirmation that is correctly decoded and do not have the rate controlled order.
43, method as claimed in claim 42, wherein, expression is once authorized before the affirmation that is correctly decoded and the described value that do not have the rate controlled order are cancelled.
44, method as claimed in claim 41, wherein, described first signal comprises in more than first value, affirmation and the rate controlled order of an expression to being correctly decoded in described more than the first individual values.
45, method as claimed in claim 41, wherein, described first signal comprises a value, this value representation not with the denying corresponding transmission and do not have the rate controlled order of decoded packet.
46, method as claimed in claim 41, wherein, described rate controlled order is in more than second value, wherein, the one or more expression speed in described more than the second individual values increase.
47, method as claimed in claim 41, wherein, described rate controlled order is in more than second value, wherein, the one or more expression speed in described more than the second individual values reduce.
48, method as claimed in claim 41, wherein, described rate controlled order is in more than second value, wherein, an expression speed in described more than the second individual values keeps.
49, method as claimed in claim 48, wherein, described secondary signal comprises that an expression keeps not having the value of transmission for speed.
50, method as claimed in claim 41 also comprises:
When first signal that is received points out that the packet that is sent is not identified, retransmit described packet.
51, method as claimed in claim 41 also comprises:
When first signal that is received points out that the packet that is sent is identified, send second packet.
52, method as claimed in claim 41, wherein, when receiving the rate controlled order by described secondary signal, the speed to determine according to described rate controlled order sends described second packet.
53, method as claimed in claim 41, wherein, the packet that is sent is the subdata bag.
54, a kind of device comprises:
The first signal generation module is used to generate first signal, and described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
The secondary signal generation module generates secondary signal conditionally when being used for the value representation rate controlled order when described first signal, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
55, a kind of method of rate control comprises:
The packet receiver module;
The decoded packet data module;
The first signal generation module is used to generate first signal, and whether the packet that described first signal indication is received is correctly decoded and represents whether will issue the rate controlled order; And
The secondary signal generation module is used for generating the secondary signal that comprises described rate controlled order when the order of issue rate controlled.
56, a kind of method of rate control comprises:
First signal receiving module is used to receive first signal, and described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
The secondary signal receiver module receives secondary signal conditionally when being used for the value representation rate controlled order when the first received signal, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
57, a kind of method of rate control comprises:
The packet sending module;
First signal receiving module is used to receive first signal, and whether the packet that described first signal indication is sent is identified and whether will issues the rate controlled order; And
The secondary signal receiver module is used for receiving the secondary signal that comprises described rate controlled order when the order of issue rate controlled.
58, a kind of wireless communication system comprises:
The first signal generation module is used to generate first signal, and described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
The secondary signal generation module generates secondary signal conditionally when being used for the value representation rate controlled order when described first signal, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
59, a kind of wireless communication system comprises:
First signal receiving module is used to receive first signal, and described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
The secondary signal receiver module receives secondary signal conditionally when being used for the value representation rate controlled order when the first received signal, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
60, computer-readable medium is used to carry out following steps:
Generate first signal, described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
When the value representation rate controlled order of described first signal, generate secondary signal conditionally, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
61, computer-readable medium is used to carry out following steps:
Receive packet;
Described packet is decoded;
Generate first signal, whether the received packet of described first signal indication is correctly decoded and represents whether will issue the rate controlled order; And
When the order of issue rate controlled, generate the secondary signal that comprises described rate controlled order.
62, computer-readable medium is used to carry out following steps:
Receive first signal, described first signal comprises in more than first value, and each value is with affirmation (ACK) or deny that (NAK) is associated, and, the one or more expression rate controlled order in described a plurality of values; And
When the value representation rate controlled order of the first received signal, receive secondary signal conditionally, described secondary signal comprises in more than second values corresponding with corresponding a plurality of rate controlled orders.
63, computer-readable medium is used to carry out following steps:
Send packet;
Receive first signal, whether the packet that described first signal indication is sent is identified and whether will issues the rate controlled order; And
When the order of issue rate controlled, receive the secondary signal that comprises described rate controlled order.
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| CN103763080B (en) * | 2008-03-28 | 2018-03-06 | 高通股份有限公司 | Signaling in wireless network is sent and method of reseptance and device |
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| US8121082B2 (en) * | 2008-02-05 | 2012-02-21 | Nokia Siemens Networks Oy | DTX detection when ACK/NACK is transmitted with scheduling request |
| ES2354328T3 (en) * | 2008-05-27 | 2011-03-14 | Telefonaktiebolaget Lm Ericsson (Publ) | TECHNICAL FOR RADIO RESOURCES MANAGEMENT. |
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| US6574211B2 (en) * | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
| CN1277767A (en) * | 1998-08-26 | 2000-12-20 | 诺基亚网络有限公司 | Bidirectional ARQ apparatus and method |
| US6590879B1 (en) * | 1998-08-28 | 2003-07-08 | Nortel Networks Limited | Method, mobile station, basestation and mobile communications system for performing handoff independently for groups of physical direct sequence-code division multiple access channels |
| EP0996304B1 (en) * | 1998-10-19 | 2007-03-14 | Nortel Matra Cellular | Method and apparatus for setting up a connection to a target base station in a cellular or cordless mobile communications system |
| JP2000134662A (en) * | 1998-10-26 | 2000-05-12 | Fujitsu Ltd | Mobile communication system and mobile machine |
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- 2004-08-04 ES ES08165791T patent/ES2364869T3/en active Active
- 2004-08-04 UA UAA200602388A patent/UA89357C2/en unknown
- 2004-08-04 CN CN200910178280.4A patent/CN101668316B/en not_active Expired - Fee Related
- 2004-08-04 CN CN200480028767XA patent/CN1864428B/en not_active Expired - Fee Related
- 2004-08-04 CN CN2004800290070A patent/CN1864432B/en not_active Expired - Fee Related
- 2004-08-04 UA UAA200602383A patent/UA90456C2/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763080B (en) * | 2008-03-28 | 2018-03-06 | 高通股份有限公司 | Signaling in wireless network is sent and method of reseptance and device |
| CN102916790A (en) * | 2012-08-30 | 2013-02-06 | 招商银行股份有限公司 | Error handling method and system of smart card personalization and controller |
| CN102916790B (en) * | 2012-08-30 | 2015-12-02 | 招商银行股份有限公司 | The error treating method of smart card personalization, controller and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1864432B (en) | 2010-12-22 |
| CN1864428A (en) | 2006-11-15 |
| CN101668316B (en) | 2014-04-02 |
| CN101668316A (en) | 2010-03-10 |
| CN1853434A (en) | 2006-10-25 |
| UA89357C2 (en) | 2010-01-25 |
| CN1864428B (en) | 2010-06-16 |
| ES2364869T3 (en) | 2011-09-15 |
| CN100566443C (en) | 2009-12-02 |
| UA90456C2 (en) | 2010-05-11 |
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