CN1864428B - Apparatus and method used in communicaiton system and for monitoring and controlling messages - Google Patents
Apparatus and method used in communicaiton system and for monitoring and controlling messages Download PDFInfo
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Abstract
Embodiments disclosed herein address the need in the art for efficient management of grant, acknowledgement, and rate control channels. In one aspect, a list associated with a first station is generated or stored, the list comprising zero or more identifiers, each identifier identifying one of a plurality of second stations for sending a message to the first station. In another aspect, sets of lists for one or more first stations are generated or stored. In yet another aspect, the messages may be acknowledgements, rate control commands, or grants. In yet another aspect, messages comprising one or more identifiers in the list are generated. Various other aspects are also presented. These aspects have the benefit of reduced overhead while managing grant, acknowledgment and rate control messaging for one or more remote stations.
Description
Priority request according to 35U.S.C. § 119
Present patent application require on August 5th, 2003 submit to be entitled as " reverse link rate control of CDMA2000RevD " the 60/493rd, the priority of the priority of No. 046 temporary patent application and the 60/496th, No. 297 temporary patent application that is entitled as " reverse link rate control of CDMA 2000 Rev D " submitted on August 18th, 2003.
Background
Technical field
The present invention relates generally to radio communication, more particularly, relate to effective pilot set of mandate, affirmation and rate control channel.
Background technology
Wireless communication system is widely used so that the polytype communication as voice and data to be provided.A kind of typical radio data system or network provide the multi-user access to or multinomial shared resource.A kind of system can use as frequency division multiplexing (FDM), Time Division Multiplexing, code division multiplexing (CDM) and other multiple multiple access technology.
The example of wireless network comprises the data system based on honeycomb.Below be several such examples: (1) " the TIA/EIA-95-B travelling carriage-base station compatible standard that is used for dual mode wideband spread spectrum cellular system " (IS-95 standard), (2) propose and be embodied in to comprise document Nos.3G TS25.211 by " 3G (Third Generation) Moblie partner program " by name tissue (3GPP), 3GTS25.212, standard in the collected works of 3G TS25.213 and 3G TS25.214 (W-CDMA standard), (3) by being called the standard that " 3G (Third Generation) Moblie partner program 2 " tissue (3GPP2) proposed and be embodied in " the TR-45.5 physical layer standard that is used for cdma2000 spread spectrum system " (IS-2000 standard), (4) abide by high data rate (HDR) system of TIA/EIA/IS-856 standard (IS-856 standard), and (5) comprise that C.S0001.C to IS-2000 this C of standard revise of C.S0006.C and relevant documentation (comprising that follow-up revised edition D submits to), is called the 1xEV-DV motion.
In the instance system of this D of IS-2000 standard revise (under development at present), the transmission of the travelling carriage on reverse link is by base stations control.The base station can determine to allow the maximum rate or the business-pilot tone ratio (TPR) of travelling carriage transmission.What propose at present is two kinds of controlling mechanisms: based on mandate and based on rate controlled.
In based on the control of authorizing, travelling carriage is to transmittability, data buffer size and service quality (QoS) grade of base station feedback travelling carriage or the like information.Which transmission feedback that base station monitoring comes from a plurality of travelling carriages and decision allow and to the corresponding maximum rate of each permission.These decisions are sent to travelling carriage by authorization messages.
In the control based on rate controlled, the speed of travelling carriage is adjusted in the base station in limited range (for example upper level, constant, next stage).Adjusting order utilizes simple binary rate controlled bit or many-valued designator to be sent to travelling carriage.
Under the buffer full condition, that is, when movable travelling carriage has mass data, roughly the same based on the technology and the rate control techniques performance of authorizing.Ignore overhead issues, authorization method can be better at the control travelling carriage under the practical business pattern.Ignore overhead issues, authorization method can be controlled different QoS stream better.Two kinds of rate controlled can be had any different, and comprise to the special-purpose method of rate control of each travelling carriage one individual bit and shared rate controlled of using each part one bit.This dual mode is put into different mixing and a plurality of travelling carriages can be transported to a rate controlled bit.Shared method of rate control can need less expense.Yet during with the contrast of more special-purpose controlling schemes, shared method of rate control is less to the control that travelling carriage provides.When the decreased number of travelling carriage of transmission at any one time, then shared method of rate control and special-purpose method of rate control are close.
Transmission rate based on the technology energy Fast transforms travelling carriage of authorizing.Yet if there is continuous rate variation, the pure technology based on authorizing can run into the problem that needs high cost.Similarly, pure rate control techniques can run into the accelerating time (ramp-up times) slow and in the accelerating time process expense equate or higher problem.
Two kinds of methods all do not provide the expense that reduces and big or fast speed adjustment.An example that satisfies the method for this demand is the XX/XXX that transfers the assignee of the present invention that is entitled as " merging mandate, affirmation and rate controlled order " of submission on February 17th, 2004, and is open in XXX (lawyer's number of putting on record 030525) number U.S. Patent application.Desirablely in addition be, reduce the number of control channel, can remain on the expectation error probability of the related command on the control channel simultaneously.System need provide the ability of the speed (or being its Resources allocation) of control single mobile station and travelling carriage group when excessively not increasing channel number in the art.In addition, the error probability that needs to adapt to various rate controlled or confirm order.An example that satisfies the method for this demand is the U.S. XX/XXX that transfers assignee of the present invention that is entitled as " extended acknowledgement and rate control channel " that on February 17th, 2004 submitted to, and is open in XXX number (lawyer's number of putting on record 030560) patent application.
Although the flexibility ratio of the control that the transmission of the mandate, rate controlled and the affirmation that merge provides allows the distribution of adaptive system resource, but also wish to participate in which distribution control, the effect that comes each base station in the control system for which signal of base station transmits and base station.The scheme that provides point-to-point (ad-hoc) of control to send signal needs the expense of very high transmission signal.If sent mandate or rate controlled order, also can cause system performance problems to the inefficacy of the control of some base station scopes, it is not obvious to the influence that sends the base station.Needing effective supervisor authority, affirmation and rate control channel in the art thus.
Summary of the invention
Embodiment disclosed herein solves in the art the effectively demand of supervisor authority, affirmation and rate control channel.On the one hand, generate or tabulation that storage is relevant with first called station, this tabulation comprises zero or more identifiers, and each identifier is discerned a plurality of of being used for to the second communication platform of first called station transmission message.In another aspect, generate or store the tabulation collection of one or more first called stations.In another aspect, message can be affirmation, rate controlled order or mandate.In one aspect of the method, generate the message that is included in the one or more identifiers in the tabulation.A plurality of other aspects have also been proposed.These aspects have and reduce expense and manage the advantage that the mandate of one or more remote communication stations, affirmation and rate controlled message send simultaneously.
The invention provides a kind of equipment that is used for monitoring message, it comprises: the processor that is used to generate the tabulation that comprises zero or more a plurality of identifiers, tabulation is associated with first called station, and each identifier is discerned of a plurality of second communication platforms who is used for sending to first called station first message; And the transmitter that is used for transmitting to first called station second message, wherein, processor also generates and comprises zero next from tabulation or second message of more a plurality of identifiers; Second message indicates first called station from delete identifier the tabulation of the identifier of the first called station stored.
The present invention also provides a kind of equipment that is used for monitoring message, it comprises: the processor that is used to generate the tabulation that comprises zero or more a plurality of identifiers, tabulation is associated with first called station, and each identifier is discerned of a plurality of second communication platforms who is used for sending to first called station first message; Be used for transmitting to first called station transmitter of second message, wherein, processor also generates and comprises zero next from tabulation or second message of more a plurality of identifiers; Wherein second message indicates first called station that identifier is added in the tabulation of the identifier of the first called station stored.
The present invention also provides a kind of method that is used for monitoring message, it comprises: generate the tabulation that comprises zero or more a plurality of identifiers, tabulation is associated with first called station, and each identifier is discerned of a plurality of second communication platforms who is used for sending to first called station first message; And transmit second message to first called station, second message comprises zero or the more a plurality of identifier in the tabulation; Wherein, second message is indicated the tabulation of first called station with the identifier in being stored in first called station and is deleted identifier.
The present invention also provides a kind of method that is used for monitoring message, it comprises: generate the tabulation that comprises zero or more a plurality of identifiers, tabulation is associated with first called station, and each identifier is discerned of a plurality of second communication platforms who is used for sending to first called station first message; And transmit second message to first called station, second message comprises zero or the more a plurality of identifier in the tabulation; Wherein second message indicates the tabulation of the identifier of first called station in being stored in first called station to add identifier.
Description of drawings
Fig. 1 is the generalized block diagram that can support multi-user's wireless communication system;
Fig. 2 depicts example travelling carriage and the base station that is suitable for configuration in the data communications system;
Fig. 3 is the block diagram as the radio communication device of travelling carriage or base station;
Fig. 4 depicts the data that are used for Reverse link data communication and the illustrative embodiment of control signal;
Fig. 5 is the illustrative acknowledgement channel;
Fig. 6 is the illustrative rate control channel;
Fig. 7 is the request of sending from one or more travelling carriages with response that can implement in the base station and transmission and the case method of partition capacity.
Fig. 8 is the case method that generates mandate, affirmation and rate controlled order;
Fig. 9 is used for travelling carriage and case method monitoring and response mandate, affirmation and rate controlled order;
Figure 10 described to have the affirmation of merging and rate control channel example embodiment synchronously;
Figure 11 described to have the affirmation of merging and rate control channel and the new example embodiment that authorizes synchronously;
Figure 12 described to have the affirmation of merging and rate control channel and the example embodiment that do not have to authorize synchronously;
Figure 13 has described to comprise the example embodiment of the system of special-purpose rate controlled signal and shared rate controlled signal;
Figure 14 has described to comprise the embodiment of the system of forward direction extended acknowledgement channel;
Figure 15 has described to be suitable for the example planisphere implemented on the extended acknowledgement channel;
Figure 16 has described another planisphere of being suitable for implementing on the extended acknowledgement channel;
Figure 17 has described to be suitable for the three dimensional example planisphere implemented on the extended acknowledgement channel;
Figure 18 has described to be used to handle the embodiment that confirms comprising of receiving with the method for the transmission of rate controlled;
Figure 19 has described to be used to respond the embodiment of the method for shared and special-purpose rate controlled;
Figure 20 has described to be used to handle that comprising of receiving confirmed and another embodiment of the method for the transmission of rate controlled;
Figure 21 has described to be used to receive and respond the method for forward direction extended acknowledgement channel;
Figure 22 comprises the generalized block diagram of wireless communication system of effective pilot set of expansion;
Figure 23 is effective pilot set of example expansion;
Figure 24-the 26th, the example of effective pilot set of other example expansions;
Figure 27 depicts the example embodiment of the method for the effective pilot set that is used to generate expansion;
Figure 28 depicts the example embodiment of method that is used for according to the transmission of effective pilot set of expansion;
Figure 29 depicts the example embodiment that is used for effective pilot set method for communicating of expansion in travelling carriage; And
Figure 30 depicts the effective pilot set that is applicable to expansion and passes on the example message that changes.
Embodiment
Below the example embodiment of Xiang Shuing is by control or the adjustment one or more data rates relevant with the multiple acknowledge message that transmits in system provide the shared resource allocation of sharing as the one or more travelling carriages in the communication system easily.
Disclosed herein merge the use of authorization channel, acknowledgement channel and rate control channel so that technology and the advantage thereof based on the combination of scheduling of authorizing and rate controlled scheduling to be provided.Various embodiments has one or more following advantages: the transmission rate that increases travelling carriage fast, make travelling carriage stop transmission fast, the low expense adjustment of the speed of travelling carriage, low expense travelling carriage acknowledge, whole low expense and to service quality (QoS) control of the stream that sends from one or more travelling carriages.
The planisphere that utilization is used for the right point of multiple order combines rate control channel and acknowledgement channel, makes control channel reduce.In addition, planisphere can form the error probability that each order that is associated provides expectation.Special-purpose rate controlled signal can together use with shared rate controlled signal.Together use one or more special-purpose rate control channels to allow the special speed of single mobile station is controlled the ability that has the big travelling carriage group of less expense with control with one or more shared rate control channels.Multiple other advantages below will be described in detail in detail.
Shuo Ming one or more illustrative embodiment are set forth in the scope of digital radio data communication system herein.Though the use in this scope has superiority, different embodiments of the invention also can be included in the different environment or structure.Generally, the multiple systems of explanation can utilize software-controlled processor, integrated circuit or discrete logic to form herein.Data, indication, order, information, signal, symbol and chip that can reference in application is by voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or light particle or the expression of its combined and instant ground.In addition, can represent hardware or method step at the square frame shown in each block diagram.
More particularly, various embodiments of the present invention can be included in according in the wireless communication system that general introduction and disclosed communication standard are operated in a plurality of standards of being delivered by telecommunications industry association (TIA) and other normal structures.These standards comprise the TIA/EIA-95 standard, TIA/EIA-IS-2000 standard, IMT-2000 standard, UMTS and WCDMA standard, GSM standard, and all these is incorporated herein by reference.Can be to TIA, Standards and TechnologyDepartment, 2500 Wilson Boulevard, Arlington, VA22201, United Statesof America writes away for this standard.Can be by contact 3GPP Support Office, the des Lucioles-Sophia Antipolis of 650Route, Valbonne-France ask in this standard that is commonly referred to as the UMTS standard as a reference.
Fig. 1 is the diagrammatic sketch of the wireless communication system 100 of design for supporting one or more CDMA standards and/or design (for example, W-CDMA standard, IS-95 standard, cdma2000 standard, HDR standard, 1xEV-DV system).In another embodiment, system 100 also can support any wireless standard or design except cdma system.In illustrative embodiment, system 100 is a kind of 1xEV-DV systems.
For for simplicity, system 100 is illustrated as and comprises three base stations 104 of communicating by letter with two travelling carriages 106.This base station and overlay area thereof often are collectively referred to as " sub-district ".In IS-95, cdma2000 or 1xEV-DV system, for example, the sub-district can comprise one or more parts.In the W-CDMA specification, each part and the overlay area thereof of base station are called as the sub-district.As used herein, the term base station can exchange with term access point or Node B and use.The term travelling carriage can use with subscriber's installation (UE), subscriber unit, subscriber board, access terminal, remote terminal or other known in the art corresponding term exchanges.The term travelling carriage comprises the fixed wireless facility.
Cdma system according to present realization, each travelling carriage 106 can be at any time be communicated by letter with (or may be a plurality of) base station 104 on the forward link, and can according to travelling carriage whether be in soft handover (soft handoff) and with one or more base station communications on reverse link.Forward link (that is, down link) refers to from the base station to the transmission of travelling carriage, and reverse link (that is up link) refers to from the transmission of travelling carriage to the base station.
Provide reverse link or the forward link signal that is used to support rl transmission although various embodiments described herein is related, some of them embodiment also can be applicable to the characteristic of rl transmission well, one skilled in the art will realize that travelling carriage and base station can be assembled into transmits data as described here like that, can recognize that also each side of the present invention also can be applicable to those situations.Word " illustrative " is exclusively used in finger " as example, example or illustration " herein.The embodiment that any herein conduct " illustrative " is described needn't think and is better than other embodiment.
The 1xEV-DV forward link data transmission
Similar to the Traffic Channel of IS-856 standard, F-PDCH is used to send data with the highest supported data rate to one or two user in each sub-district at every turn.In IS-856, when to travelling carriage transmission data, whole power of base station and whole spaces of Walsh function can be used.Yet in the 1xEV-DV system, some base station powers and some Walsh functions are assigned to overhead channel and existing IS-95 and cdma2000 business.Supported data rate depends primarily on power and available horsepower behind the Walsh coding and the Walsh coding that is used in expense, IS-95 and IS-200 channel dividing.The data of transmitting on F-PDCH utilize one or more Walsh codings to distribute.
In the 1xEV-DV system, the base station is usually once to a travelling carriage transmission on F-PDCH, although many users can just use the Packet Service in the sub-district.(also can transmit to two users two users' transmission, and suitably distribute power and Walsh channel to each user by scheduling.) travelling carriage is chosen as according to certain dispatching algorithm and is used for forward link transmissions.
In the system similar to IS-856 or 1xEV-DV, the scheduling part is based on the channel-quality feedback of coming from just serviced travelling carriage.For example, in IS-856, travelling carriage is estimated the quality of forward link and the transmission rate that calculation expectation will keep for existing situation.The expected rate that will come from each travelling carriage is to base station transmits.For example, this dispatching algorithm can select to support the travelling carriage that is used for transmitting of relative higher transmission rates, more effectively to use shared communication channel.As another embodiment, in the 1xEV-DV system, each travelling carriage is gone up transmission carrier wave-interference (C/I) in reverse channel quality indicator channel (R-CQICH) and is estimated as channel quality estimation.This dispatching algorithm is used to determine to be selected for the travelling carriage of transmission, and selects appropriate speed and transformat according to channel quality.
As mentioned above, wireless communication system 100 can be supported the multi-user of shared communication resource simultaneously, as the IS-95 system, can once distribute whole communication resources to a user, as the IS-856 system, but or the allocate communications resource to allow two kinds of access types.The 1xEV-DV system divides the communication resource and according to the example of user's request with the system of its dynamic assignment between two kinds of access types.Illustrative forward direction-link example just is illustrated.A plurality of illustratives oppositely-link embodiment is described in further detail following.
Fig. 2 depicts and is disposed at example travelling carriage 106 and the base station 104 that is applicable in the data communications system 100.Shown in base station 104 and travelling carriage 106 on forward direction and reverse link, communicate by letter.Travelling carriage 106 receives forward link signal in receiving subsystem 220.Below the base station 104 of connection forward data of Xiang Shuing and control channel can be called as the serving BS of travelling carriage 106 herein.Be described in further detail the example receiving subsystem below with reference to Fig. 3.In travelling carriage 106, produce carrier wave-interference (C/I) estimation that is used for from the forward link signal of serving BS reception.The C/I measurement is the example as the channel quality metering of channel estimating, can use other channel quality metering in other embodiments.The C/I measurement is sent to the transmission subsystem 210 in the base station 104, below with reference to Fig. 3 the example is further specified.
Transmission subsystem 210 transmits C/I and estimates that it is sent to serving BS on reverse link.Notice that under the soft switching process situation, as well known in the field in this technique, the reverse link signal of transmitting from travelling carriage can be received by the one or more base stations except serving BS, be referred to as non-serving base stations herein.Receiving subsystem 230 in base station 104 receives C/I information from travelling carriage 106.
Scheduler 240 in the base station 104 is used for the one or more travelling carriages whether and how specified data should be transferred to the overlay area of Serving cell.The dispatching algorithm of any kind can be used within the scope of the invention.The title that is to submit on February 11st, 1997 is for disclosing an example in the 08/798th, No. 951 patent application that transfers assignee of the present invention of " method and apparatus that is used for forward link rate scheduling ".
In example 1xEV-DV embodiment, when the C/I measurement designation data that receives from travelling carriage can be transmitted with special speed, travelling carriage was selected for forward link transmissions.Aspect power system capacity, but the select target travelling carriage is so that shared communication resource is favourable with its maximum supporting rate use always.Like this, the typical target travelling carriage of selection can be one with maximum C/I that reports.Other factors also can be included in the scheduling judgement.For example, can use minimum quality of service to each user guarantees.The travelling carriage that can select to have the C/I of relatively low report is used for transmission, to remain to this user's minimum data transfer rate.The travelling carriage that can select not have the maximum C/I that reports is used for transmission, to keep specific just standard in all users.
In example 1xEV-DV system, scheduler 240 is determined which travelling carriage transmission also to determine data rate, modulation format and the power grade of this transmission to.For instance, in another embodiment, as the IS-856 system, supported speed/the modulation format judgement can be carried out at the travelling carriage place according to the channel quality of measuring at the travelling carriage place, and the alternative C/I measurement of this transformat is transferred to serving BS.Those skilled in the art will recognize that the combination that to use a large amount of supported speed, modulation format, power grade etc. within the scope of the invention.In addition, although herein among Shuo Ming a plurality of embodiment, scheduler task is carried out in the base station, and in other embodiments, some or all of scheduling are handled and can be taken place in travelling carriage.
Scheduler 240 indication transmission subsystems 250 are to use the travelling carriage transmission on the forward link selection such as speed, modulation format and the power grade etc. selected.
In example embodiment, transmit with the data on data channel or F-PDCH in the message on control channel or the F-PDCCH.Control channel can be used to discern the travelling carriage that receives the data on the F-PDCH, and can be identified in other useful in communication session messaging parameters.When F-PDCCH indication travelling carriage was transmission objectives, travelling carriage should receive and the rectification data from F-PDCH.Travelling carriage responds on reverse link with indication transmission success or failure after receiving these data.As well known in the field in this technique, in data communication system, use retransmission technique widely.
Travelling carriage can with more than a base station communication, promptly so-called soft switching process.Soft handover can comprise a plurality of parts (or base station transceiver subsystem (BTS)) of a base station, is considered to More Soft Handoff, also can comprise the part of a plurality of BTS.Base station portion in soft switching process is stored in effective pilot set of travelling carriage usually.In the CRS of sharing synchronously, as the appropriate section of IS-95, IS-2000 or 1xEV-DV system, travelling carriage can merge the forward link signal of all the part transmission from effective pilot set.In data dedicated system (data-onlysystem), in the appropriate section as IS-856 or 1xEV-DV system, travelling carriage receives forward link data signal the base station in effective pilot set, this serving BS (determining according to the mobile station in selecting algorithm) as described in the C.S0002.C standard those.Also can receive at following other forward link signals that are described in further detail the example from non-serving base stations.
The reverse link signal of coming from travelling carriage can receive in many base stations, and the base station that the quality of this reverse link is generally in effective pilot set keeps.The reverse link signal that receives at place, a plurality of base station is combined.Usually, the soft synthetic reverse link signal of sending from the base station of dispersed and distributed will need very macroreticular communication bandwidth and very little delay, so above listed instance system does not support this kind soft synthetic.In the More Soft Handoff process, the reverse link signal combination that can when not having network signal, will receive in the multi-section office among the single BTS.Although can use the reverse link signal combination of any kind within the scope of the invention, in above-mentioned instance system, power of reverse link control keeps quality so that the reverse link frame success is decoded at a BTS place (switching diversity)
Reverse link data transmission also can be carried out in system 100.Can use above-mentioned reception and transmission subsystem 210-230 and 250 to transmit control signal on the forward link with the transfer of data of indication on reverse link.Travelling carriage 106 also can be on reverse link control information transmission.(that is, the reverse chain channel of variable allocation is as in 1xEV-DV for each travelling carriage 106 addressable shared communication resources of communicating by letter with one or more base stations 104, or fixed allocation, as in IS-856), to respond multiple access control and rate control techniques in detail, the example is described in detail below.Can use scheduler 240 to determine the distribution of reverse link resources.The example that is used for Reverse link data communication control and data signal at following detailed description.
Example base station and travelling carriage embodiment
Fig. 3 is the block diagram of radio communication device, as travelling carriage 106 or base station 104.The square frame of describing in this example embodiment is generally the subclass that is included in element in base station 104 or the travelling carriage 106.Those skilled in the art are easy to embodiment shown in Figure 3 is used for the base station or the travelling carriage configuration of arbitrary number.
Signal is receiving and is being sent to receiver 320 at antenna 310 places.Receiver 320 is carried out according to one or more wireless system standards (as above listed standard) and is handled.Receiver 320 is carried out multiple processing, arrives baseband-converted, amplification, analog-to-digital conversion, filtering or the like as radio frequency (RF).The multiple technologies that are used to receive are being known in the art.Be used for the clear and definite following discussion of describing in detail although illustrate segregated channel quality estimation device 335, when device was travelling carriage or base station respectively, receiver 320 can be used to measure the channel quality of forward direction or reverse link.
The signal that receives from receiver 320 demodulator 325 according to one or more communication standard rectification.In example embodiment, use the demodulator of energy demodulation 1xEV-DV signal.In other embodiments, can support other standard, and embodiment can support many communication formats.Demodulator 330 can carry out RAKE receive, balanced, make up, deinterleave, decoding and multiple other by the required functions of signal format that receive.Multiple rectification technology is for known in the art.In base station 104, demodulator 325 will be according to the reverse link rectification.In travelling carriage 106, demodulator 325 will be according to the forward link rectification.Data described herein and control channel all are to receive in receiver 320 and demodulator 325 and the example of the channel of rectification.The rectification of forward data channel (FDC) will take place according to the signaling on the aforesaid control channel.
Message decoder 330 receiving demodulation system data and extract sensing travelling carriage 106 on forward direction or the reverse link respectively or the signal or the message of base station 104.Message decoder 330 decodes the multiple message that is used for conversation (comprising voice or data session) on foundation, maintenance and the deactivation system.Message can comprise channel quality indication, measures power control messages or be used for the control channel message of rectification forward data channel (FDC) as C/I.Decoding in base station 104 or travelling carriage 106 when polytype control messages can be transmitted on reverse or forward link respectively.For example, the following stated is used to dispatch the request message and the authorization messages of reverse link data transmission for generating respectively in travelling carriage or base station.Other different messages types are known to the present technique field and the multiple communication standard regulation that can support.This message can be sent to the processor 350 that is used for subsequent treatment.Although in order to offer some clarification on what illustrate is the square frame that separates, can carry out the some or all of functions of message decoder 330 in processor 350.In addition, demodulator 325 decodable code customizing messages and with its directly send to processor 350 (as in the control of ACK/NAK or power/the individual bit message of issuing orders is example).Being used for interior employed multiple signal of disclosed herein embodiment and message is described in further detail following.
Channel quality evaluation device 335 is connected to receiver 320, and is used for producing in process described herein and the communication employed multiple other and handles as employed multiple power grade estimation in the rectification.In travelling carriage 106, can carry out C/I and measure.In addition, the measurement of employed any signal or channel can be measured in the channel quality evaluation device 335 of given embodiment in the system.In base station 104 or travelling carriage 106, can produce signal strength signal intensity and estimate, as the pilot power that is received.Channel quality evaluation device 335 is illustrated as separate blocks and offers some clarification on only being used to.Usually this square frame can be comprised in another square frame as receiver 320 or demodulator 325.Depend on estimated signal or system type, can produce polytype signal strength signal intensity and estimate.In general, can use the channel quality metering of any type to estimate that square frame is with alternate channel quality estimation device 335 within the scope of the present invention.In base station 104, channel quality estimation is sent to processor 350, is used for scheduling or definite reverse link circuit quality, following further shown in.Channel quality estimation can be used for determining whether that needs are gone up or following power control command arrives desired set value with driving forward direction or back to link power.This desired set value can be determined by the exterior ring power controlling mechanism.
Signal is by antenna 310 transmission.With the transmission signal according to as the layout in transmitter 370 of above listed one or more wireless system standards.The example that can be included in the element in the transmitter 370 is amplifier, filter, digital-to-analogue (D/A) transducer, radio frequency (RF) transducer etc.The data that are used to transmit are provided to transmitter 370 by modulator 365.Data and control channel can be weaved into the form that is used to transmit according to multiple form.The data that are used for transmitting on forward link data channel can form according to by the speed of the dispatching algorithm appointment consistent with C/I or other channel quality measurements and the form of modulation format at modulator 365.Aforesaid scheduler (as scheduler 240) can be arranged in processor 350.Similarly, transmitter 370 can be instructed to the power grade transmission according to dispatching algorithm.The example that can be included in the element in the modulator 365 comprises polytype encoder, interleaver, transmission device (spreader) and modulator.Below explanation comprises the reverse link design of example modulation format and access control, and it is applicable to the 1xEV-DV system.
Receiving also in demodulator 325, the data of rectification can transmit to the processor 350 that is used for sound or data communication and multiple other elements.The class likelihood data that is used to transmit can be drawn towards modulator 365 and transmitter 370 from processor 350.For example, can have several data on the processor 350 in being included in radio communication device 104 or 106 (not shown) or other processors uses.Base station 104 can be connected on one or more external networks by other unshowned equipment, for example the internet (not shown).Travelling carriage 106 can be included in the link as the external device (ED) of kneetop computer (not shown).
The typical data communication system can comprise one or more dissimilar channels.More particularly, dispose one or more data channels usually.Usually also configurable one or more control channels are although band inner control signaling can be included on the data channel.For example, in the 1xEV-DV system, forward packet data control channel (F-PDCCH) and forward packet data channel (F-PDCH) be defined as being respectively applied on the forward link control and the transmission of data.The multiple example channel that is used for reverse link data transmission below is described.
1xEV-DV reverse link design consideration
In this part, the multiple factor of being considered in the design of example embodiment of reverse link of wireless communication system is described.In a plurality of embodiment that are described in further detail with the lower part, use signal, parameter and the process relevant with the 1xEV-DV standard.This standard only is intended for explanation, because each side described herein within the scope of the invention and combination thereof can be used for the communication system of any amount.Sum up as the part of many aspects of the present invention this part, although it is not detailed.Example embodiment is described in further detail in following further part, and other aspect wherein is described.
Under many situations, the restriction that reverse chain-circuit capacity is interfered.Effective reverse link communication resources is distributed to travelling carriage in the base station, with the maximum throughput of effective utilization according to service quality (QoS) demand of multiple travelling carriage.
Make the use maximization of reverse link communication resources comprise some factors.A factor of need considering is the mixing of the scheduling rl transmission sent from multiple travelling carriage, its each can experience the different channels quality arbitrarily preset time.In order to increase entire throughput (total data of being transmitted by all travelling carriages) in the sub-district, desired is that when sending reverse link data, whole reverse link can fully be used.In order to satisfy available capacity, the flank speed that travelling carriage can be authorized to can support with them is visited, and additional travelling carriage can be authorized to visit up to reaching capacity.The data volume that the maximum rate that the factor that the base station can be considered when which travelling carriage of decision scheduling can be supported for each travelling carriage and each travelling carriage must send.Can select to have the travelling carriage of high-throughput more rather than select its channel not support more other travelling carriage of high-throughput.
Another factor that needs to consider is the required service quality of each travelling carriage.Although can allow to postpone travelling carriage of visit, rather than select the travelling carriage that is more suitable for, single page to need time top grade travelling carriage to be authorized to visit to guarantee to satisfy minimum service quality with the expectation channels to improve.Like this, the data throughout of having dispatched may not be bare maximum, but considers channel situation, effective travelling carriage through-put power and service request, and it is maximized on certain degree.Desired is any configuration that the combination of selecting is reduced signal to noise ratio.
Below the multiple scheduling mechanism of explanation is to allow travelling carriage at the reverse link transmitting data.One class rl transmission relates to the travelling carriage that request is transmitted on reverse link.The base station makes whether having available resources to satisfy the judgement of this request.Can make mandate to allow transmission.Signal between travelling carriage and base station is connected to introduce before reverse link data can be transmitted and postpones.Concerning the particular category of reverse link data, this delay is an acceptable.Other classifications may compare sensitivity for postponing, and the other technologies that are used for rl transmission that reduce to postpone below are described in detail in detail.
In addition, consume reverse link resources sending the request of transmission, and consume forward link resources, that is, send mandate to respond this request.When the channel quality of travelling carriage hangs down, that is, when poor geometry or depth attenuation, arriving the required power of travelling carriage on the forward link may be higher relatively.Number and the required through-put power of multiple technologies to reduce required request of reverse link data transmission and mandate below is described in detail in detail.
For fear of the delay of connect introducing by request/authorization signal, and support its required forward direction and reverse link resources, and support a kind of autonomous rl transmission pattern in order to keep.Mandate be asked or be waited for to travelling carriage can and need not to send with finite rate transmission data on reverse link.
Desired in addition is, can change according to authorizing or the transmission rate of the travelling carriage of autonomous transmission, and the expense that need not to authorize.In order to reach this kind purpose, the rate controlled order can together realize with the scheduling of advocating peace certainly based on request/mandate.For example, command history can comprise increase, the constant order of present rate that reduces and keep transmission.This rate controlled order can be to each travelling carriage or travelling carriage group addressing.Below be described in further detail multiple example rate control command, channel and signal.
The part of reverse chain-circuit capacity is distributed in the base station to one or more travelling carriages.The travelling carriage of granted access is provided maximum power level.Among Shuo Ming the example embodiment, reverse link resources uses business-pilot tone (T/P) ratio to distribute herein.Because the pilot signal of each travelling carriage is adaptively controlled by power control, indicates the T/P ratio in detail and indicates in the used available horsepower of reverse link transmitting data.Special delegated authority can be sent to one or more travelling carriages in the base station, indicates the specific T/P ratio of each travelling carriage.Shared mandate also can be sent to the travelling carriage that residue has asked to visit in the base station, and indication allows the maximum T/P value of residue travelling carriage transmission.Below be described in further detail from advocating peace scheduled transmission, independent and shared mandate and rate controlled.
Known in multiple in the art dispatching algorithm, and more still the needs develops, these algorithms can be judged multiple specific and shared T/P value that is used to authorize and the rate controlled order of expecting according to probability, the number of not finishing request and the size of the autonomous transmission of the number of registered travelling carriage, travelling carriage, to the expectation average response of authorizing and other factors of arbitrary number.In an example, make one's options according to service quality (QoS) priority, efficient and the accessible throughput of request travelling carriage group.Open in the 10/651st, No. 810 patent application of the U.S. that transfers the assignee of the present invention that example dispatching technique is to submit on August 28th, 2003 is entitled as " being used for according to temporal extension and based on the system and method for the scheduler of priority ".Other lists of references comprise the United States Patent (USP) 5 that is entitled as " method and apparatus that is used for reverse link rate scheduling ", 914,950 and be entitled as the United States Patent (USP) 5,923 of " method and apparatus that is used for reverse link rate scheduling " equally, 650, this two patent has transferred assignee of the present invention.
Travelling carriage can use one or more son bag transmits data packets, and wherein each son comprises complete package informatin (owing to can adopt multiple coding or redundancy in each seed bag, the coding of each son bag does not need identical).Can adopt retransmission technique to guarantee reliable transmission, for example automatic repeat request (ARQ).Like this, if the first son bag zero defect is received (for example using CRC), then sends affirmative acknowledgement (ACK) and will not send additional son bag (considering that each son comprises a kind of form or other forms of whole package informatin) to travelling carriage.Do not receive if the first son bag is correct, then negative response (NAK) is sent to travelling carriage, and will transmit the second son bag.The base station can merge the energy of two son bags and attempt decoding.This process can infinitely repeat, although can refer to the maximum number of stator pack usually.Among the described herein example embodiment, can transmit nearly four son bags.Like this, along with additional son bag is received, the correct probability that receives increases.Following what describe in detail is the distinct methods that merges ARQ response, rate controlled order and mandate, so that the transmission rate flexibility grade of the expectation with acceptable expense grade to be provided.
As indicated above, the travelling carriage useful delay exchanges throughput, is to use the less autonomous transmission of delay to transmit data with decision and still asks the conversion of higher rate and wait for shared or special delegated authority.In addition, for given T/P, travelling carriage selecting data speed postpones or throughput to adapt to.For example, the travelling carriage that is used to transmit with less relatively bit can determine less delay to be fit to.For available T/P (may be the autonomous transmission maximum in this example, but also can be specific or shared mandate T/P), travelling carriage can be selected a kind of speed and modulation format, so that the probability of the correct reception first son bag in base station is very high.Although can retransmit when needing, this travelling carriage can transmit its data in a son bag.Among the described herein different instances embodiment, each son wraps on period of 5ms and is transmitted.Thus, in this example, travelling carriage can be made autonomous transmission immediately, this immediately autonomous transmission will be probably be received in the base station back at interval at 5ms.Notice that alternatively, for given T/P, travelling carriage can use available additional son bag to increase data quantity transmitted.So travelling carriage can select autonomous transmission to reduce with request and to authorize the delay that is associated, and goes back data throughput in addition and exchanges specific T/P to reduce required child bag number (promptly postponing).Even selected the child bag of entire quantity, autonomous transmission will have littler delay than the request and the mandate of relatively little transfer of data.Those skilled in the art will recognize that, because the request and the loss of authorizing will be finally can be offset by the throughput of the increase of the higher data rate of a plurality of bags, so along with wanting data quantity transmitted to increase, need a plurality of bag transmission, can reduce bulk delay by switching to request and grant format.Below by distributing the transmission rate that be associated and one group of example of form to be described in further detail this process with multiple T/P.
Reverse link data transmission
A purpose of reverse link design is, as long as there is the reverse link data that will transmit then to keep the hot noise increase (RoT) on the base station relatively stable.The transmission of reverse-link data channel can be handled by three kinds of different modes:
Autonomous transmission: this situation is used for the low business that postpones of needs.Allow travelling carriage to transmit immediately by certain definite transmission rate of serving BS (that is, travelling carriage is with its CQI (CQI) base station pointed).Serving BS is also referred to as scheduling base station or authorized base station.The maximum that is used for autonomous transmission allows transmission rate dynamically to be indicated according to system load, congested etc. by serving BS.
Scheduled transmission: travelling carriage sends the estimation of its buffer size, available horsepower and other possibility parameters.The base station determines when and allows the travelling carriage transmission.The target of scheduler is the number of limits synchronization transmission, thereby reduces the interference between travelling carriage.The travelling carriage that scheduler can be attempted to make between the sub-district zone is with than lower rate transmissions, with reduce to the interference of neighbor cell and strict control RoT with the sound quality on the protection R-FCH, on the R-CQICH the DV feedback and confirm the stability of (R-ACKCH) and system.
The rate controlled transmission: no matter travelling carriage is dispatched still transmission independently of ground (that is, authorizing ground), but base station through-rate control command adjustment transmission rate.The example rate control command comprises increase, reduces or keeps present rate.Can comprise how additional command realizes (that is the amount that, increases or reduce) with the indicated speed conversion.The rate controlled order can be randomness or deterministic.
Different embodiment described in detail herein comprise the characteristic of throughput, capacity and overall system performance that one or more designs are used for increasing the reverse link of wireless communication system.Only be for for the purpose of illustrating, the data division of 1xEV-DV system has been described, particularly, the optimization of the transmission of being undertaken by the different mobile stations that strengthens on the reverse complemental channel (R-ESCH) has been described.In this part in detail a plurality of forward directions and the reverse chain channel that is used among one or more example embodiment has been described in detail.These channels are generally the subclass of channel used in communication system.
Fig. 4 depicts the data that are used for Reverse link data communication and the illustrative embodiment of control signal.Travelling carriage 106 is shown on the multichannel communicates by letter, and each channel is connected to one or more base station 104A-104C.Base station 104A is marked as the scheduling base station.Another one base station 104B and 104C are the effective pilot set of the part of travelling carriage 106.Illustrate four kinds of reverse link signal and four kinds of forward link signals.They below are described.
R-REQCH
Reverse request channel (R-REQCH) is moved platform and uses with the rl transmission from scheduling base station requests data.In example embodiment, ask for request the transmission on the R-ESCH (below be described in further detail).In example embodiment, the request on R-REQCH comprises the T/P ratio that travelling carriage can be supported, according to the variable and the buffer sizes (that is, waiting for data quantity transmitted) of the channel situation that changes.Request such as also can specify at the service quality (QoS) of data to be transmitted.Notice that travelling carriage can have the independent QoS grade for this travelling carriage appointment, or, specify the different QoS grade for dissimilar services selection.More upper-layer protocol can be indicated QoS, or is used for other expectation parameters (as stand-by period or throughput requirement) of several data service.In another embodiment, carry access request with can be used as the common Reverse Dedicated Control Channel (R-DCCH) that uses of other reverse link signal of reverse fundamental channel (R-FCH) (for example as voice service).Usually, access request can be described to comprise the logic channel that can be in office how about shines upon on the existing physical channel of R-DCCH, that is, and and back scheduling request channel (R-SRCH).(as IS-2000 revised edition C) is backwards-compatible for example embodiment and existing cdma system, and the physical channel of R-REQCH for using under the situation that does not have R-FCH or R-DCCH.In order to offer some clarification on, term R-REQCH is as the access request channel of describing in the embodiment specification herein, although those skilled in the art will easily expand to its principle any kind of access request system, no matter the access request channel is a logic physics.R-REQCH can be closed till the needs request, reduces thus to disturb and the retention system capacity.
At example embodiment, R-REQCH has 12 input bits being made up of following: 4 bits of the maximum R-ESCH T/P ratio that the appointment travelling carriage can be supported, 4 bits of the data volume in the buffer of appointment travelling carriage, and 4 bits of specifying QoS.It will be appreciated by those skilled in the art that bit number and multiple other fields that can comprise any number among other embodiment.
F-GCH
Forward direction authorization channel (F-GCH) is from dispatching base station transmits to travelling carriage.F-GCH can be made up of a plurality of channels.In example embodiment, shared F-GCH channel is used to make shared mandate, and one or more independent F-GCH channel is used to make independent mandate.Mandate is made by the scheduling base station, with response from one or more in its one or more requests of sending of travelling carriage on R-REQCH separately.Authorization channel can be labeled as GCHx, wherein footnote x perch channel number.Channel number 0 can be used for specifying shared authorization channel.If dispose N individual channel, the scope of footnote x from 1 to N.
Can make independent mandate to one or more travelling carriages, its each travelling carriage T/P ratio or lower ratio with regulation on R-ESCH that allows to identify transmits.Make on the forward link and authorize nature can introduce the expense of using some forward link capacity.The multiple selection that is used to reduce the expense relevant described in detail herein with mandate, and to those skilled in the art, according to disclosure herein, other selections are conspicuous.
A kind of consideration is that travelling carriage will be in the situation that makes each travelling carriage experience variations.Thus, for instance, the good geometrical condition travelling carriage with good forward direction and reverse chain channel needs relatively low power for authorization signal, and may utilize high data rate, therefore is suitable for independent mandate.The poor geometry travelling carriage, or experience need be authorized separately with reliable reception by more power than the travelling carriage of deep attenuation.Such travelling carriage may not be suitable for independent mandate.Below the forward link expense of the shared mandate that is used for this travelling carriage of Xiang Shuing is comparatively saved.
In example embodiment, adopt some independent F-GCH channels so that the independent mandate of respective number to be provided at special time.The F-GCH channel is a code division multiplex.This helps just to arrive required each ability of authorizing of power grade transmission of specific purpose travelling carriage.In another embodiment, can adopt single independent authorization channel, separately the time multiplexing of authorization number.In order to change each power of authorizing of time multiplexing, F-GCH can introduce added complexity separately.Can use any signal transmission technology that is used to transmit shared or independent mandate within the scope of the invention.
In certain embodiments, dispose the independent authorization channel of relatively large quantity (that is, F-GCH) once to allow the independent mandate of relatively large quantity.In this case, desired is the number that limits the independent authorization channel that each travelling carriage must monitor.In an example embodiment, definition has the multiple subclass of the independent authorization channel of entire quantity.Distributing to the subclass of the independent authorization channel of each travelling carriage monitors.This allows travelling carriage to reduce to handle complexity, and the corresponding power consumption that reduces.Its cost then is the scheduling flexibility ratio, this be because the set that the scheduling base station can not be distributed independent mandate arbitrarily (for example, because design, single group member does not monitor one or more independent authorization channels, so be not that all independent mandates all can become single group member).Notice that the loss of this flexibility ratio not necessarily causes the loss of capacity.In order to illustrate, consider an example that comprises four independent authorization channels.Can assign two authorization channels of even number mobile station supervision head, and assign the odd number mobile station supervision latter two.In another example, subclass can be overlapping, three authorization channels of even number mobile station supervision head for example, and three authorization channels behind the odd number mobile station supervision.Clearly, four travelling carriages can not be assigned from any one group (even number or odd number) arbitrarily in the scheduling base station.These examples only are illustrative.Can adopt the channel of any configuration with subclass of any number within the scope of the invention.
The residue travelling carriage of having made request but not received independent mandate can be allowed to transmit on the R-ESCH that uses shared mandate, and this shared mandate is specified and respectively remained the mandatory maximum T/P ratio of travelling carriage.Shared F-GCH also can be referred to as the shared authorization channel of forward direction
(F-CGCH)。One or more independent authorization channels of mobile station supervision (or its subclass) and shared F-GCH.Unless give independent mandate, send shared mandate else if, travelling carriage can transmit.Maximum T/P ratio is indicated in shared mandate, and residue travelling carriage (shared mandate travelling carriage) is that the data with QoS of particular type are transmitted with this ratio.
In example embodiment, each shared mandate is effective to an a little bag transmission intercal.In case receive shared mandate, having sent the travelling carriage of asking but not authorized separately can begin to transmit one or more encoder packet in the subsequent transmission interval.Authorization message can be repeated repeatedly.This permission is transmitted shared mandate to compare less power grade with independent mandate.Energy more than each travelling carriage can merge in the transmission is with the shared mandate of reliable decoding.Thus, can be the shared mandate of the mobile station in selecting with poor geometry, for example, thinking that independent mandate is aspect forward link capacity during too expensive.Yet shared mandate still needs expense, and the multiple technologies that are used to reduce this expense below are described in detail in detail.
F-GCH sends to each travelling carriage by the base station, and each travelling carriage of base station scheduling is to carry out the transmission of new R-ESCH bag.F-GCH also can be sent out in encoder packet transmission or retransmission processes, is used for the T/P ratio of transmission of the follow-up son bag of encoder packet to force travelling carriage change when the congested control of needs.
In example embodiment, shared mandate is made up of 12 bits, and this 12 bit comprises that 3 bit type field are to specify the form of back 9 bits.The maximum of the 3 class travelling carriages that remaining bits indication type field is specified allows the T/P ratio, and wherein all kinds of maximums allows the T/P ratio to be represented by 3 bits.The travelling carriage type can be based on QoS demand or other standards.Those skilled in the art can envision multiple other shared form of authorisation, and this it will be apparent to those skilled in the art that.
In example embodiment, authorize separately and comprise 12 bits, these 12 bits comprise: 11 bits, be used to specify the travelling carriage ID (Mobile ID) and the maximum T/P of the permission ratio of the travelling carriage that is authorized to transmit, or be used for clearly indicating travelling carriage to change its maximum T/P of permission ratio, comprise the maximum T/P ratio to 0 (that is, telling travelling carriage not transmit R-ESCH) that allows is set.These bits are the specific travelling carriage travelling carriage ID that specifies travelling carriage (192 value in 1) and the maximum T/P of permission (10 value in 1).In another embodiment, 1 long mandate (long-grants) bit can be and specifies the travelling carriage setting.When this length authorized bit to be set to 1, travelling carriage was authorized to allow the bag at the big relatively fixing predetermined number (can be upgraded by signaling) of ARQ channel.If this length-mandate bit is set to 0, travelling carriage is authorized to transmit a bag.Travelling carriage can be apprised of and close its transmission of R-ESCH with zero T/P ratio specification, and if length-mandate bit is closed or if length-mandate bit is opened more long duration, and this is used to indicate travelling carriage to wrap the transmission of transmitting with its single son that is used for single bag that is closed on the R-ESCH.
In an example embodiment, travelling carriage is only monitored from the next F-GCH of serving BS.If travelling carriage receives F-GCH message, then travelling carriage is followed the rate information in the F-GCH message and is ignored the rate controlled bit.Another embodiment uses following rule to travelling carriage, that is, if any rate controlled designator indicated speed of the base station outside the serving BS reduces (that is the RATE_DECREASE order of, below describing in detail), even then the F-GCH indication increases, travelling carriage also will reduce its speed.
In another embodiment, travelling carriage can be monitored from the next F-GCH of the subclass of all base stations in its effective pilot set or base station.The higher level signaling is by switch indicating information or other message indication which F-GCH of mobile station supervision and how to merge them on channel allocation.Notice that the subclass of the F-GCH that comes from different base stations can be soft merging.Travelling carriage with notified with this possibility.After will carrying out possible soft merging, still have a plurality of F-GCH at any one time from the F-GCH that different base stations are come.Travelling carriage can determine its transmission rate as minimum mandate speed (or some other rules) then.
R-PICH
Reverse Pilot Channel (R-PICH) is from the base station transmits of travelling carriage in effective pilot set.Power in the R-PICH can be located measured in one or more base stations that are used for power of reverse link control.As well known in the field in this technique, pilot signal can be used for being provided for the amplitude and the phase measurement of coherent demodulation.As mentioned above, the available amount of transmit power of travelling carriage (being limited by the internal limitations of the power amplifier of dispatching base station or travelling carriage) is distributed between pilot channel, Traffic Channel and control channel.Higher data rate and modulation format may need additional pilots power.In order to simplify the use of the R-PICH that is used for power control, and, can distribute additional channel to be used as pilot tone additional or that assist for fear of some problems relevant with the instantaneous variation of required pilot power.Although generally, as mentioned above, pilot signal is used known data sequence and transmitted, and also can adopt information carrying signal, be used for the reference information of generating solution modulation.In example embodiment, R-RICH is used for carrying the additional pilots power of expectation.
R-RICH
Reverse rate indicator channel (R-RICH) is used with the transformat of indication on reverse traffic channel R-ESCH by travelling carriage.This channel also can be described as reverse packet data control channel (R-PDCCH).
When travelling carriage transmission bag, can transmit R-RICH.When travelling carriage is idle on R-ESCH, also can transmit R-RICH with the indication of zero-speed rate.It is idle that the transmission of zero-speed rate R-RICH frame (R-RICH that indication R-ESCH is not transmitted) makes the base station detect travelling carriage, keeps power of reverse link control and other functions of travelling carriage.
The zero-time of the initial and current R-ESCH transmission of R-RICH frame is aimed at.The frame duration of R-RICH can be equal to or less than the frame duration of corresponding R-ESCH transmission.R-RICH transmits the transformat of simultaneous R-ESCH transmission, as effective load, son bag ID and ARQ sequence of events number (AI_SN) bit, the CRC of error detection.The example of an AI_SN is each bit that transmits upset when newly wrapping on specific ARQ, is sometimes referred to as " color bit ".This can be asynchronous ARQ configuration, and is wherein regularly unfixing between the child bag transmission of bag.This color bit can be used as and prevents that receiver with the sub-inclusion of the child bag of a bag and the adjacent bag on the same ARQ channel also.R-RICH is the portability additional information also.
R-ESCH
Strengthen reverse complemental channel (R-ESCH) as the reverse link traffic data channel among the example embodiment described herein.Can adopt the transmission rate and the modulation format of any amount for R-ESCH.In example embodiment, R-ESCH has following characteristic: support physical layer retransmission.In order when being 1/4 yard of speed for first yard, to retransmit, to retransmit and use 1/4 yard of speed and use energy to merge.In order to retransmit for greater than 1/4 speed the time, use the redundancy that increases at first yard.Basis sign indicating number (underlying code) is 1/5 yard of a speed.In addition, the redundancy of increase also can be used as all situations.
All support to mix automatic repeat requests (HARQ) for the dispatched users of advocating peace certainly, all addressable R-ESCH of these two kinds of users.
Can support many ARQ-channel synchronization operation, having between retransmitting is regularly fixing: can allow the child bag at the fixed qty of the continuous sub-parlor of identical bag.Also can allow alternate transmission.As an example,, can support 4 channel ARQ, have the delay of 3 son bags at sub-parlor for the frame of 5ms.
Table 1 is listed the instance data speed that is used to strengthen reverse complemental channel.The child bag size of 5ms has been described, and the design respective channel is to adapt to this selection.Also can select other son bag sizes, this is apparent to those skilled in the art.Be not these channel adjustment pilot reference grades, that is, the base station has the flexibility ratio of selecting T/P at given operating point.This maximum T/P value is specified on the forward direction authorization channel.If exhaust the power that will transmit, then travelling carriage can use low T/P, makes HARQ satisfy required QoS.Layer 3 signaling message also can transmit on R-ESCH, and the permission system does not turn round when having R-FCH and/or R-DCCH.
Table 1. strengthens the reverse complemental channel parameter
In an example embodiment, use the turbo coding for all speed.For the R=1/4 coding, use and the similar interleaver of current cdma 2000 reverse links.For the R=1/5 coding, use and the similar interleaver of cdma 2000 forward packet data channel.
The bit number of each encoder packet comprises CRC bit and 6 tail bits.For the encoder packet of 192 bit sizes, use 12 bit CRC; Otherwise, use 16 bit CRC.Think that the 5-ms time slot is divided the time of opening to allow ACK/NAK to respond by 15ms.If receive ACK, the remaining time slots of transmission package not then.
Just 5ms that illustrates embraces continuous time and coefficient correlation only as an example.The combination that any amount of speed, form, son bag repeat to select, son embraces the continuous time etc. is apparent to those skilled in the art.Can adopt the embodiment of another 10ms that uses 3 ARQ channels.In one embodiment, select single son to embrace continuous time or frame size.For example, select 5ms or 10ms structure.In another embodiment, system can support the multiframe duration.
F-CPCCH
The shared power control channel of forward direction (F-CPCCH) can be used as power and controls multiple reverse chain channel, and it is at F-FCH and F-DCCH does not exist or F-FCH and F-DCCH exist but when not being exclusively used in the user, comprise R-ESCH.After channel allocation, travelling carriage is assigned with reverse link power control channel.F-CPCCH can comprise a plurality of power control sub-channels.
F-CPCCH can be loaded with the power control sub-channel that is called shared congested control subchannel (F-OLCH).Although can use other speed, the congested control subchannel of this illustrative has the speed of 100bps usually.Individual bit (it can be repeated the to obtain reliability) indication that is called busy bit herein is under the autonomous transmission pattern or is under the shared licensing mode or the travelling carriage that is under these two kinds of patterns is the speed that increases or reduce this travelling carriage.In another embodiment, licensing mode also can be to this bit sensitivity separately.Can use the various embodiments of the combination of transport-type with any response F-OLCH.This can random fashion or definite mode carry out.
In one embodiment, have much to do travelling carriage that bit is set to ' 0 ' this busy bit of indication response should reduce their transmission rate.The bit of having much to do is set to the corresponding increase transmission rate of ' 1 ' indication.Can use a plurality of other signaling schemes, this is conspicuous to those skilled in the art, and multiple other examples below are described in detail in detail.
In channel allocation, travelling carriage is assigned to these certain power control channels.Intrasystem all travelling carriages of power control channel may command, perhaps, the variable subclass of one or more power control channel may command travelling carriages.Notice that this use that is used for the particular channel of congested control only is an example.
F-ACKCH
Use forward direction acknowledgement channel or F-ACKCH confirming the correct reception of R-ESCH by the base station, and this channel also can be used to expand existing the mandate.The correct reception of the affirmation on F-ACHCH (ACK) indication bag.Need not carry out additional transmitted to this child bag by travelling carriage.Negative response on F-ACKCH (NAK) allows travelling carriage to transmit another height bag, and it is by the maximum allowable number order restriction of every bag neutron packet.
Herein among the embodiment of Xiang Shuing, F-ACKCH is used to provide the positive or negative that receives the son bag and replys, and to whether sending the indication of rate controlled order (following describe at the F-RCCH channel).
Fig. 5 is the example embodiment of signal three value F-ACKCH.Whether this example F_ACKCH comprises the single designator that transmits to travelling carriage from one or more base stations, be used to indicate the transmission on R-ESCH of sending from travelling carriage correctly to be received by each base station.In an example embodiment, the F-ACKCH designator is by each base station transmits in effective pilot set.In addition, F-ACKCH can be by the particular subset transmission of effective pilot set.The base station collection that sends F-ACKCH can be described as the effective pilot set of F-ACKCH.The effective pilot set of F-ACKCH can be by layer 3 (L3) indication that transmits a signal to travelling carriage, and can be in channel allocation specify with switch indicating information (HDM) or by other technology known in the art.
For example, F-ACKCH can be 3 attitude channel: NAK, ACK_RC and ACK_STOP with following value.The NAK indication must retransmit the bag (yet if last child bag is sent out, travelling carriage may need to utilize any prior art as request/mandate, rate controlled or autonomous transmission to retransmit this bag) that sends from travelling carriage.If the last son bag of the corresponding bag of NAK, travelling carriage may need to monitor the rate controlled designator on the corresponding F-RCCH (below further specify).
The ACK_RC indication does not need from the travelling carriage retransmission packet, and travelling carriage should be monitored the rate controlled designator on corresponding F-RCCH.ACK_STOP does not indicate yet and need retransmit.Yet in the case, travelling carriage reply transmission next time is returned to autonomous mode, unless travelling carriage receives the authorization messages (as above describing in detail) on the F-GCH.
The F-ACKCH designator whether the L3 signaling can indicate travelling carriage the different base station of soft merging from its effective pilot set to be come.This can be equal to the revised edition C processing power control bit according to IS-2000.For example, a designator can be arranged, suppose it is ACK_COMB_IND, send to switch message after channel allocation, whether its indication travelling carriage merges the F-ACKCH designator next from different base stations.Can use multiple technologies with transmission F-ACKCH, below provide the example.Some examples comprise TDM channel, TDM/CDM channel or other forms of separation.
Whether in this example, be identified according to bag, monitoring F-ACK channel has two class results.If receive NAK, can obtain multiple choices.Travelling carriage can send additional son bag and be sent out up to the child bag of maximum number.(in this example embodiment, no matter be to start, and, all use the identical traffic form to send the son bag no matter whether through the rate controlled revision by autonomous transmission or authorized transmissions.In another embodiment, can use any technology disclosed herein to change son bag transformat).In the end behind the NAK of son bag, travelling carriage can move according to respective rate control command (monitoring F-RCCH), stops transmission (that is, if desired, being returned to autonomous transmission) according to mandate or rate controlled order before, or the new mandate that receives of response.
If receive ACK, can stop according to rate controlled order or indication.If indicated speed control, monitoring and following rate control channel (F-RCCH).If the result is for stopping, then travelling carriage is not followed the tracks of the rate controlled designator on F-RCCH and is returned to autonomous mode (transmission is to reach the maximum autonomous speed of distribution).If receive express authorization simultaneously with ACK_STOP, then travelling carriage is followed the order in the express authorization.
Situation (with by the ACK_COMB_IND indication) when for example, considering at first that single effective pilot set member or the designator that comes from all parts are all identical.In the case, single synthetic designator is arranged.When travelling carriage received NAK (designator that does not transmit), then travelling carriage retransmitted next height bag (in due course).If travelling carriage does not receive the ACK of last son bag, then travelling carriage continues next bag (erroneous packets can retransmit according to the retransmission algorithm no matter which kind of is followed).Yet travelling carriage thinks that this is rate controlled indication (promptly monitoring rate control channel).
In this example, below be common rule (being applicable to single effective pilot set member and the effective pilot set member of a plurality of different F-ACKCH).If any designator is ACK_STOP or ACK_RC, the result is ACK.If all designators all are not ACK_STOP or ACK_RC, then the result is NAK.Then, relevant with rate controlled, if any designator is ACK_STOP, travelling carriage will stop (that is, be returned to autonomous mode or respond any mandate).If not having designator is that ACK_STOP and at least one designator are ACK_RC, the designator on the rate control channel (F-RCCH) of corresponding base station is decoded.If transmitted last son bag, and all designators are NAK, and the designator on the rate control channel (F-RCCH) of all base stations is decoded.Below be described in further detail response about the explanation of F-RCCH to the rate controlled order under these situations.
ACK_RC order, with rate control channel mutually together, can be considered to a class and be called ACK_ and continue (ACK-and-Continue) and order.The sustainable transmission subsequent packet of travelling carriage continues (the following detailed description example) according to the multiple rate controlled order that can send.The ACK_ persistence command allows the base station to confirm the bag that successfully receives, and the while, and the utilization of permission travelling carriage causes the mandate of the bag that successfully receives to transmit (according to may revise according to the rate controlled order).This has saved the expense of new mandate.
In the embodiment of F-ACKCH, paint as Fig. 5, use the ACK_STOP symbol on the occasion of, the null symbol of NAK, and the negative value of ACK_RC symbol.On-off key on the F-ACKCH (that is, not sending NAK) allows base station (being non-scheduling base station especially) not send ACK when consumption (power that needs) is excessive.Owing to will do not caused probably in constantly re-transmission subsequently by the bag of the correct reception of ACK, this provides exchange between forward link and the reverse chain-circuit capacity for the base station.
The multiple technology that is used to send F-ACKCH can be used within the scope of the invention.The independent signal of each travelling carriage can be incorporated in the shared channel.For example, the affirmation response that is used for a plurality of travelling carriages can be time multiplexing.In example embodiment, can on a F-ACKCH, support up to 96 travelling carriage ID.Configurable additional F-ACKCH is to support additional travelling carriage ID.
Another example is that a plurality of confirmation signals to a plurality of travelling carriages are mapped on the Orthogonal Function Set.The Hadamard encoder is an example that is used to be mapped to the encoder of Orthogonal Function Set.Also can adopt other different technology.For example, any Walsh sign indicating number or other similar error correcting codes can be used to information bit is encoded.If each independent subchannels has the independent channel gain, different user can the transmission of different capacity grade.Illustrative F-ACKCH is that every user transmits a special use three value marks.The F-ACKCH that each user monitoring all base stations from its effective pilot set are come.(perhaps, signal also effective pilot set of having reduced of definable reducing complexity).
In different embodiment, each is coated with 128-chips W alsh sequence coverage (Walsh cover sequence) two channels.A channel is in the I channel, and another is in the Q channel.Another embodiment of F-ACKCH uses single 128-chips W alsh sequence coverage to support simultaneously up to 192 travelling carriages.An example embodiment is that three value marks use the 10ms duration.
In order heavily to look into, when travelling carriage will send the bag that needs use R-ESCH, it need be asked on R-REQCH.The base station can respond the mandate of using F-GCH.Yet this operation may some costliness.In order to reduce the forward link expense, F-ACKCH can send the ACK_RC mark, and it can be by scheduling base station (or other, when supporting the soft handover mandate that comes from a plurality of base stations) with existing authorize (according to the rate controlled) of low consumption expansion.This method both can be used for independent mandate and also can be used for shared mandate.ACK_RC is used from authorized base station (or base station), and goes up the current mandate of expansion to another encoder packet at identical ARQ channel (according to rate controlled).
Notice, as shown in Figure 4, do not need the base station in each effective pilot set to send F-ACKCH to postbacking.The base station collection that sends the F-ACKCH in the soft handover can be the subclass of effective pilot set.The case technology that is used to transmit F-ACKCH is what on June 30th, 2003 submitted to, and the title that has transferred assignee of the present invention is for open in the 10/611st, No. 333 patent application of the U.S. of " the code division multiplex order on the code division multiplex channel ".
F-RCCH
Forward direction rate control channel (F-RCCH) from one or more base station transmits to travelling carriage with indication to the speed adjustment of next transmission.Can distribute travelling carriage to monitor the designator that sends from each member of the effective pilot set of F-ACKCH or its subclass.In order to offer some clarification on, transmission will will be called as the effective pilot set of F-RCCH by the base station collection of the F-RCCH of mobile station supervision.The effective pilot set of F-RCCH can be by layer 3 (L3) signaling indication, and it is in channel allocation, in the exchange Indication message (HDM) or designated in the multiple additive method known to any those skilled in the art.
Fig. 6 depicts illustrative F-RCCH.F-RCCH is 3 attitude channel: RATE_HOLD with following value, and the indication travelling carriage can be with the next bag of the identical speed rates that is no more than current bag; RATE_INCREASE, indication travelling carriage can be definitely or are increased the maximum rate of the next bag of transmission randomly with respect to the transmission rate of current bag; And RATE_DECREASE, the indication travelling carriage can be definitely or is reduced to transmit the maximum rate of next bag randomly with respect to the transmission rate of current bag.
The L3 signaling can indicate travelling carriage whether will merge the rate controlled designator next from different base stations.This is to similar to the processing that power control bit carried out among the IS-2000 revised edition C.Like this, will have on channel allocation and switch the designator that sends in the message, RATE_COMB_IND for example, it will indicate the whether F-RCCH bit of soft merging from different base stations of travelling carriage.Those skilled in the art will recognize that the form of many transmission channels such as F-RCCH, comprise TDM/CDM channel or other forms of separating TDM channel, merging.
In different embodiment, has different rates control configuration.For example, all travelling carriages can be by the single designator control of every part.In addition, each travelling carriage can be by the designator control of the separation of the each several part of each travelling carriage special use.Perhaps, the travelling carriage group can be by the designator control that himself distributes.The travelling carriage that this configuration allows to have identical maximum QoS grade is assigned with identical designator.For example, its all travelling carriages that only have code stream to be indicated as " best effects (best effort) " can allow to reduce the load of these best effects code streams like this by the designator control of a distribution.
In addition, signaling can be used to dispose travelling carriage so that travelling carriage is only paid close attention to F-RCCH designator from serving BS or that the base station in the effective pilot set of F-RCCH is come.Note, specify this designator identical with the designator that comes from a plurality of base stations if travelling carriage is only monitored the designator and the RATE_COMB_IND that come from serving BS, then travelling carriage can be before making judgement merging as all designators in same group of serving BS.Base station collection with the different rates control designator that uses at any time will be called as the current collection of F-RCCH.Like this, travelling carriage is only paid close attention to from the next F-RCCH designator of serving BS if travelling carriage is configured, and then the size of the current collection of F-RCCH is 1.
Can think that the service regeulations that are used for F-RCCH can be adjusted by the base station.Below be the example of the rule set of the travelling carriage that is used to have the general collection of single member F-RCCH.If receive RATE_HOLD, travelling carriage does not change its speed.If receive RATE_INCREASE, travelling carriage increases by 1 with its speed (that is, a speed grade, the example describes in detail) in above table 1.If receive RATE_DECREASE, travelling carriage subtracts 1 with its speed.Notice that travelling carriage is only monitored these designators (, the operation as the result's of ACK process indicated speed control that below is described in further detail is effective) when environmental requirement.
Below be the example of the rule set of the travelling carriage that is used to have the general collection of many F-RCCH member.Speed is increased/reduces 1 simple rule change.If receive any ACK_STOP, travelling carriage is returned to autonomous speed.Otherwise if any designator is RATE_DECREASE, travelling carriage reduces 1 with its speed.If not having designator is RATE_DECREASE, and at least one base station has the operation (as the result of ACK process) of rate controlled, this operation indication RATE_HOLD, then travelling carriage maintenance phase same rate.If not having designator is RATE_DECREASE, do not have base station indicated speed control and RATE_HOLD, and at least one base station have the operation of rate controlled and the indication of RATE_INCREASE; Subsequently, travelling carriage increases by 1 with its speed.
The example that merges mandate, ARQ and rate controlled order embodiment
Sum up above some aspects of introducing, travelling carriage can be authorized to make autonomous transmission, although it may be limited on throughput, still allows low the delay.In this case, travelling carriage can transmit when not asking maximum R-ESCH T/P ratio, T/P maximum _ automatic (T/PMax_auto), and it can be set up and adjust by signaling by the base station.
Scheduling can be determined at place, one or more scheduling base station, and the distribution of reverse chain-circuit capacity can be by making with the mandate of higher relatively speed rates on F-GCH.In addition, the rate controlled order can be used to adjust the distribution of reverse chain-circuit capacity thus with authorized transmissions or autonomous transmission before the low expense change.Can use scheduling to control reverse link loading and protect voice quality (R-FCH), DV feedback (R-CQICH) and DV affirmation (R-ACKCH) thus thus with strictness.
Authorize the accurate control that allows the travelling carriage transmission separately.Can select travelling carriage so that the throughput-maximized required service grade that keeps simultaneously according to geometrical condition and QoS.Shared mandate allows vaild notice, particularly for the travelling carriage of poor geometry.
Realize " ACK-continues " order effectively with the F-ACKCH channel of F-RCCH combining channel, this order is authorized so that the low consumption expansion is existing.(this continues to can be rate controlled, as mentioned above, and below be described in further detail).It is applicable to independent mandate and shared mandate.The different embodiment and the technology that are used for scheduling, mandate and transmission on shared resource such as 1xEV-DV reverse link are that the title of submitting on August 21st, 2003 that transfers assignee of the present invention is the U.S. the 10/646th of " scheduling and autonomous transmission and affirmation ", open in No. 955 patent applications, this application at this as a reference.
Thereby Fig. 7 depicts request and transmission that the case method 700 of configurable one or more base stations sends from one or more travelling carriages with the partition capacity response.Note, shown in the order of square frame only be an example, and do not departing under the scope of the present invention, the order of interchangeable a plurality of square frames or merge with other square frames, not shown at this.Process starts from square frame 710.The base station receives the request that is used to transmit, and they can be by one or more travelling carriage transmission.Because method 700 can infinitely be repeated, can have and formerly ask also to be received, it may not be authorized to, and it can merge with new request to estimate the transmission requirements amount according to request.
In square frame 720, one or more travelling carriages can transmit the child bag that is received by the base station.The child bag of this transmission can according to before mandate (may by the change of rate controlled order before) or autonomous (also may by the change of rate controlled order before) transmit.The number of autonomous transmission, the number of the travelling carriage of registration, and/or other factors can be used as the demand of estimating autonomous transmission.
In square frame 730, any child bag that receives of base station decodes, each child bag that receives before of optionally soft merging is to determine whether this bag is received by zero defect.This judgement will be used as to each transmission travelling carriage transmission positive or negative replys.Consider that HARQ can be used as the bag transmission on the R-ESCH.Just, bag can be transmitted specific times and correctly received by at least one base station up to it.At each frame boundaries place, each base station decodes R-RICH frame and determine transmission form on R-ESCH.The base station also can utilize current R-RICH frame and R-RICH frame before to make this to determine.Perhaps, the base station also can utilize other information from reverse Auxiliary Pilot Channel (R-SPICH) and/or R-ESCH extraction to make definite.By the transmission form of determining, the son that receives before the base station attempts to utilize wraps in R-ESCH and goes up suitably this bag of decoding.
In square frame 740, the base station operation dispatching.Can use any dispatching technique.Transmission, the autonomous transmission of expectation, the estimation of current channel condition and/or the requirement of multiple other parameters according to request can be managed in the base station, distributes shared resource (reverse chain-circuit capacity in this example) with operation dispatching.Scheduling can be adopted various ways to multiple travelling carriage.Example comprise make mandate (authorize before distributing, increase according to request or reduce before authorize), generating rate control command with increase, reduce or keeps before the speed or the autonomous transmission of mandate, or ignored request (transferring travelling carriage to autonomous transmission).
In step 750, the transmission that receives is handled in the base station for each travelling carriage.Except that other functions, this can comprise confirms child bag that receives and the mandate that generates the request of response transmission conditionally.
Fig. 8 depicts the case method 750 that generates mandate, affirmation and rate controlled order.This method is applicable to depicted in figure 7 in the case method 700 and launches, and applicable to additive method apparent to those skilled in the art.Can in the process of process method 700 each time, be each movable travelling carriage repetition methods 750, as mentioned above.
In decision block 805,, proceed to square frame 810 if do not receive the child bag of the travelling carriage of handling.Do not need to confirm, and do not send the rate controlled order.F-ACKCH or F-RCCH all do not need transmission, and two symbols all can be by DTX (not transmission).In decision block 815,, then proceed to square frame 820 if received request.Otherwise this process stops.
In decision block 820,, proceed to square frame 825 suitably to transmit mandate on the F-GCH if in scheduling process, determine to authorize for this travelling carriage.Subsequent process can stop.Travelling carriage can transmit (following with reference to the synchronous example of Figure 10-12 detailed description) according to this mandate in the suitable frame process of the next one.
Return decision block 805,, then proceed to decision block 830 if receive from the next child bag of travelling carriage.(notice that son bag and request can be received, in this case, can carry out from two branches that decision block 805 is come out travelling carriage, for the purpose of clear and definite, not shown details).
In decision block 830,, will generate ACK if the child bag that receives is correctly decoded.Proceed to decision block 835.Rate controlled (comprise that speed keeps, that is, " continuing ") proceeds to square frame 845 if desired.If do not need rate controlled, then proceed to square frame 840.In square frame 840, on F-ACKCH, transmit ACK_STOP.F-RCCH need be do not transmitted, that is, DTX can be generated.If do not generate mandate this moment, travelling carriage will be transferred to autonomous transmission (if or autonomous transmission is unavailable or not configuration, then must stop).In addition, can send new mandate, it ceases and desist order covering.Proceed to decision block 820 to handle this decision, as mentioned above.
In square frame 845, assigned rate control.So, ACK_RC will transmit on F_ACKCH.Proceed to decision block 850.Increase if desired, on F_RCCH, transmit RATE_INCREASE.Then process can finish.If not needing increases, proceed to decision block 860.In decision block 860, reduce if desired, then on F_RCCH, transmit RATE_DECREASE.Then this process can stop.Otherwise, on F-RCCH, transmit RATE_HOLD.In this example, keep by the DTX indication.Process can stop then.
Turn back to decision block 830,, will generate NAK if the child bag that receives is not correctly decoded.Proceed to square frame 875 on F-ACKCH, to transmit NAK.In this example, NAK is indicated by DTX.Whether proceed to decision block 880 serves as last son bag (that is, having reached the maximum number that the son bag retransmits) with the child bag of determining to receive.If no, in this example, travelling carriage can be according to transmission form re-transmission before.Can on F-RCCH, transmit DTX, as indicated in the square frame 895.(in this case, other embodiment can carry out other signalings, and the example below is described.) then process can finish.
Being received and process NAK as the fruit bag, should the child bag be last son bag then, proceeded to decision block 885 need to determine whether rate controlled (comprising maintenance) from decision block 880.This is for being used for the case technology of (rate controlled before comprising is if exist) of mandate or autonomous transmission before the low expense expansion.If do not need rate controlled, then generate DTX for F-RCCH.In this example, travelling carriage will transmit the next son bag.Similar to decision block 835, if not for travelling carriage generates new mandate, travelling carriage will be transferred to autonomous transmission (if possible).In addition, can generate new mandate, it will indicate may transmitting of travelling carriage.Proceed to decision block 820 and determine, as mentioned above to carry out this.
In decision block 885, rate controlled proceeds to square frame 850 if desired.Can generate increase, reduce or keep, as mentioned above the transmission on F-RCCH.Process can finish then.
As summary, if correctly receive bag, the base station can send affirmative acknowledgement, but and conditionity ground to travelling carriage transmission rate control messages.
The base station can send ACK_STOP (on F-ACKCH) and be transmitted with the indication bag, and travelling carriage is returned to the autonomous mode of next transmission.If desired, the base station also can send new mandate.Travelling carriage can transmit to reach the mandate speed of next transmission.Under each situation, F-RCCH is through DTX.In one embodiment, only service (or mandate) base station can generate mandate.In another embodiment, one or more base stations can generate mandate (following detailed description is operated the details of this selection).
The base station can send that ACK_RC (on F-ACKCH) and RATE_HOLD (on F_RCCH) are transmitted with the indication bag and travelling carriage to transmit the maximum rate of next bag identical with the speed of transmitting current bag.
The base station can send ACK_RC (on F-ACKCH) and RATE_INCREASE (on F-RCCH) is transmitted with the indication bag and travelling carriage can increase the maximum rate that next bag transmits with respect to the transmission rate of current bag.Travelling carriage can be in accordance with advancing the speed for base station and travelling carriage certain rule in common knowledge.This increase can be deterministic or randomness.Those skilled in the art will recognize that the multiple rule of advancing the speed.
The base station can send that ACK_RC (on F-ACKCH) and RATE_DECREASE (on F-RCCH) are transmitted with the indication bag and travelling carriage can reduce the maximum rate of the transmission of next bag with respect to the transmission rate of current bag.Travelling carriage can be abideed by and followingly reduced speed for base station and travelling carriage certain rule in common knowledge.This reduces can be certainty ground or randomly.Those skilled in the art will recognize that the multiple rule that reduces speed.
If the base station does not successfully receive bag, and bag can be by re-transmission once more (that is, not being last son bag), and then the base station sends NAK on F-ACKCH.Notice that F-RCCH passes through DTX in this example.
If do not allow the re-transmission once more of bag (that is, last son wraps), below the possible operation that can take for the base station.The base station can send NAK (on F-ACKCH) and while transmission authorization messages on F-GCH is not transmitted with indication travelling carriage bag and travelling carriage can transmit to reach the mandate speed of next transmission.In the case, F-RCCH is through DTX.In one embodiment, only service (or mandate) base station can generate mandate.In another embodiment, one or more base stations can generate mandate (following detailed description is handled the details of this selection).
The base station can send also that NAK (on F-ACKCH) and RATE_HOLD (at F-RCCH) are not transmitted with the indication bag and travelling carriage can to transmit the maximum rate of next bag identical with the transmission rate of current bag.
The base station also can send NAK (on F-ACKCH) and RATE_INCREASE (on F-RCCH) is not transmitted with the indication bag and travelling carriage can increase the maximum rate that next bag transmits with respect to the transmission rate of current bag.Travelling carriage can abide by the base station and travelling carriage certain rule in common knowledge is advanced the speed.This speedup is deterministic or randomness.
The base station also can send NAK (at F-ACKCH) and RATE_DECREASE (on F-RCCH) is not transmitted with the indication bag and travelling carriage should reduce the maximum rate that next bag transmits with respect to the transmission rate of current bag.Travelling carriage can abide by the base station and travelling carriage certain rule in common knowledge reduces speed.This deceleration can be deterministic or randomness.
(not shown details among Fig. 8) in another embodiment, the another kind of form that can produce NAK and stop.For example, in these cases, can not be with the DTX on F-RCCH and " NAK-keeps (NAK-and-hold) " make a distinction accordingly with NAK.Have order to stop (or being returned to autonomous transmission) to force if desired, the base station also can be in the end uses before the son bag NAK and rate controlled to keep (or increase or reduce) to indicate with the speed of indicating last son bag to stop.For example, under this particular case, can distribute any one rate controlled order (that is, RATE_INCREASE, RATE_DECREASE or RATE_HOLD) to stop with indication.Travelling carriage will know when transmit last son bag, and can correspondingly analyze the rate controlled order subsequently.When the base station knew whether the transmission of last son bag should follow stopping of NAK incident, the rate controlled order of having selected can together be sent with the NAK of last son bag.(and RATE_HOLD, for example) indication is abolished and is authorized before any, and this travelling carriage must be returned to autonomous transmission to receive the NAK that fixed rate controlled order and the travelling carriage of the NAK of son bag (non-last) know that son in the end wraps.Still not available with the rate controlled order (that is, RATE_INCREASE or RATE_DECREASE) that is not used as this purpose that last son bag NAK together transmits.Another program be with last NAK together with zero (or reduction) speed rates mandate, although this will need additional overhead.Those skilled in the art are easy to according to the possibility of " NAK-stops (NAK-and-stop) " these schemes be replaced with other possibility schemes.Can be optimized the possibility of required expense according to multiple incident.
Fig. 9 depicts the case method 900 of mobile station supervision and response mandate, affirmation and rate controlled order.This method be applicable to one or more travelling carriages of the base station of one or more aforesaid usings method 700 and the embodiment collaborative work of other base stations in use.
Process starts from square frame 910.Mobile station supervision F-GCH, F-ACKCH and F-RCCH.Notice that in various embodiments, as mentioned above, travelling carriage can be monitored one or more these channels.For example, can have a plurality of authorization channels, and each travelling carriage can be monitored one or more in them.Be also noted that, can receive each these channels from a base station, or when travelling carriage is in soft handover, can be from receiving more than a base station.Channel can comprise message or the order of pointing to a plurality of travelling carriages, so travelling carriage can extract the message or the order of special this travelling carriage of sensing.
Can use other rules to monitor the one or more of control channel conditionally to allow travelling carriage.For example, as mentioned above, when sending ACK_STOP, can not transmit F-RCCH.Like this, in the case, when receiving ACK_STOP, travelling carriage does not need to monitor F-RCCH.Can specify a kind of rule, that is, travelling carriage is only sought authorization messages and/or rate controlled order when this travelling carriage has sent request, and this request can be by those message responses.
In the explanation of following Fig. 9, can think that travelling carriage has transmitted sub-bag before, expectation is to affirmation (comprising possible mandate or the rate controlled order) response of this son bag.If there is not authorization requests before, travelling carriage still can be monitored the request of mandate with transmission before the response.Those skilled in the art are easy to amending method 900 and adapt to this situation.As clearly stated, omit the travelling carriage of these and other possible processing square frame.
From decision block 915, the processing of F-ACKCH begins.Travelling carriage extracts the information on all F-ACKCH channels of its monitoring.Consider between each member of travelling carriage and the effective pilot set of its F-ACKCH F-ACKCH can be arranged.Some F-ACKCH orders can be by soft merging, as specified through the L3 signaling.If travelling carriage receives at least one affirmative acknowledgement, ACK_RC or ACK_STOP (on F-ACKCH), current bag is correctly received, and does not need to transmit additional son bag.If next bag is arranged, then need to determine the transmission rate of its permission.
In decision block 915, if received ACK_STOP, the child bag of transmission was correctly received before then travelling carriage was known, and did not need the decode rate control command.
In decision block 920, travelling carriage determines whether mandate is received on F-GCH.If so, travelling carriage is according to next bag of authorized transmissions, as indication in square frame 930.In one embodiment, only an authorized base station is made mandate.If receive ACK_STOP and authorization messages from the base station, travelling carriage authorizes the speed rates of speed newly to wrap with any being equal to or less than on identical ARQ channel.
In another embodiment, can send mandate more than one base station.If this base station coordination delegate, and send identical message, then travelling carriage can those mandates of soft merging.Can use multiple rule to receive different situations of authorizing with processing.Example is to make the minimum speed limit transmission of travelling carriage with appointment in the mandate that receives, with avoid with the corresponding sub-district of authorized base station (comprising that the ACK_STOP-indication transmission that does not have corresponding mandate should be returned to autonomous mode) separately in excessive interference.Different for a person skilled in the art other schemes are tangible.If do not receive mandate in decision block 920, travelling carriage must turn back to autonomous speed, as shown in square frame 925.Process can finish then.
Turn back to decision block 915,, proceed to decision block 940 if do not receive ACK_STOP.If receive ACK_RC, the corresponding F-RCCH of mobile station supervision base station if exist, then receives affirmative acknowledgement from this base station.Note not having F-RCCH between base station and the travelling carriage, because the effective pilot set of F-RCCH is the subclass of the effective pilot set of F-ACKCH.Be also noted that when travelling carriage received F-ACKCH from a plurality of base stations, corresponding message can be in the conflict.For example, can receive one or more ACK_STOP orders, ACK_RC order and mandate or its combination.Those skilled in the art will recognize that the multiple rule that realizes handling any possibility.For example, travelling carriage can determine that minimum possible transmission allows (its can from the ACK_STOP that not have to authorize, have the ACK_RC of decrease or have mandate than low value) also corresponding transmission.This is similar to the technology that is called " OR-of-Downs " rule.This technology can be used as strictness and avoids excessive interference to neighbor cell.Perhaps, one or more base stations can have the priority of distributing to them, so that one or more base station can have the ability (may have additional conditions) above other.For example, scheduling (or mandate) base station can have the priority higher than other base stations on soft handover.Also can be contemplated to other rules.(consider also to receive one or more NAK, but travelling carriage need not to retransmit.Yet if desired, travelling carriage can comprise rate controlled order or the mandate that the base station from NAK is come in a similar manner.) for helping explanation herein, when thinking that travelling carriage determines whether to receive ACK_STOP, ACK_RC, NAK or mandate, the result can obtain by adopt the rule collection that is fit on the number order that receives, and the result is the order that identifies.
If received ACK_PC, proceed to decision block 945 to begin determining follow which kind of rate controlled order.If indication increases, proceed to square frame 950.Next transmission can be on identical ARQ channel with the speed rates that has increased with respect to present rate.Process can finish then.The same, it is deterministic or at random that this increase can be.Equally, RATE_INCREASE not necessarily can advance the speed immediately, but can increase afterwards from the next transmission rate of travelling carriage (that is, using credit algorithm (credit-like algorithm) at travelling carriage), or RATE_INCREASE can increase a plurality of speed.In an example credit algorithm, travelling carriage keeps inner " balance/credit (balance/credit) " parameter.When travelling carriage receives RATE_INCREASE but can not increase its speed (because travelling carriage exhausts power or data), travelling carriage increases this parameter.When travelling carriage being had available horsepower or data, it can use " credit/balance " of storage when selecting data rate.Multiple method of advancing the speed will be obvious for those skilled in the art.
Do not increase if in decision block 945, specify, then proceed to decision block 955 and slow down to determine whether to specify.If specified deceleration, proceed to square frame 960.Next transmission can be on identical ARQ channel with reducing with respect to present rate speed rates.Then, process can stop.The same, this deceleration can be deterministic or randomness.Equally, RATE_DECREASE not necessarily causes reducing immediately speed, but can reduce afterwards from the next transmission rate of travelling carriage (that is, travelling carriage uses credit algorithm (credit-like algorithm)), perhaps RATE_DECREASE can cause crossing over the deceleration of many speed.When example credit algorithm uses under the RATE_DECREASE situation, and when travelling carriage obtains RATE_DECREASE but fails to follow owing to certain reason (for example, the emergency data that need send), it negates credit that RATE_DECREASE obtains, and in some sense, this negative credit needs to be repaid subsequently.The multiple method that reduces speed will be tangible for a person skilled in the art.
If neither minimizing is not specified in the indication increase yet, then received RATE_HOLD.Travelling carriage can transmit next bag with the maximum rate that current packet rate equates, as indicated in the square frame 965.Then, process can finish.
Turn back to decision block 940,, will determine that NAK is received if do not recognize the type of ACK.In decision block 970, if bag still may retransmit (that is, current son bag is not last son bag), then travelling carriage retransmits the son bag on identical ARQ channel, and the ID of son bag increases, as painting in the square frame 980.
In decision block 970, if current bag is last son bag, then travelling carriage has been finished the re-transmission of all bags.Proceed to decision block 975 whether be received determine to authorize (with above-mentioned square frame 920 similar fashion).If authorization messages is assigned to travelling carriage (as mentioned above, no matter be from single base station or a plurality of base station), travelling carriage can be to be equal to or less than the new bag of speed rates of authorizing speed on identical ARQ channel.Proceed to aforesaid square frame 930.
In decision block 975, if also do not receive mandate, travelling carriage can be monitored the effective pilot set of F-RCCH, obtains the rate controlled order, and determines that next wraps the maximum rate that is allowed in identical ARQ channel.The selection of the speed when receiving more than a rate controlled order can be made as mentioned above.Proceed to decision block 945 and continuation as mentioned above.
Can use multiple other technologies by the illustrative embodiment of travelling carriage.Travelling carriage can be monitored the number (that is, in the end not having affirmative acknowledgement behind the son bag) of bag deletion.Can pass through the number of the bag of calculating number that continuous bag is deleted in a window (that is sliding window) or deletion and make measurement.If it is deleted that travelling carriage identifies too much bag, then it can reduce its transmission rate, although other orders (that is, RATE_HOLD or RATE_INCREASE) are indicated in the rate controlled order.
In one embodiment, authorization messages can have the higher priority of specific speed control bit.In addition, priority treatment authorization messages that can be identical with the rate controlled bit.In the case, speed is determined and can be modified.For example, if there is not authorization messages to be assigned to travelling carriage, the speed of next bag can use " OR-of-DOWN " or similar rule to determine from all rate controlled orders (RATE_INCREASE, RATE_HOLD, RATE_DECREASE and ACK_STOP).When mandate also is received, the speed of next transmission can use " OR-or-Down " or similar rule to determine from all rate controlled orders (RATE_INCREASE, RATE_HOLD, RATE_DECREASE and ACK_STOP), its result with authorize speed ratio, and select less speed.
Can use signaling with the configuration travelling carriage, so that travelling carriage is only monitored the F-RCCH designator that comes from serving BS or all base stations in the effective pilot set of F-RCCH.For example, but when RATE_COMB_IND assigned rate control command identical with the rate controlled order that comes from many base stations, travelling carriage all designators in can the group that merging has been discerned before making judgement then.The number of the different designators that whenever use can be indicated as the general collection of F-RCCH.In an example, configurable travelling carriage is only to monitor from the next F-RCCH designator of serving BS, and in the case, the size of the general collection of F-RCCH is 1.
In addition, as mentioned above, can use multiple rule to adjust speed with the order on the response F-RCCH.Can utilize from the base station signaling of coming that these rules any one adjusted.What in one embodiment, can whether increase or reduce its speed and increase or reduce time to use one group of probability and spacing size (step size) at definite travelling carriage.If when necessary, these probability and the possible big I of speed spacing are upgraded by signaling.
According to disclosure herein, to those skilled in the art, clearly any process of explanation and characteristic can merge by distinct methods herein.For example, travelling carriage can be only by dominant base by authorization control, and can't help other base station through-rate control bits controls.In addition, travelling carriage can be controlled by the mandate that the subclass of all base stations in its effective pilot set or base station is come.Some F-GCH can be by soft merging.The pattern of travelling carriage operation can be provided with by the L3 signaling in channel allocation or by other message in the bag data call process.
As other example, if bag is correctly received, dominant base can send ACK_STOP or ACK_RC.The rate controlled order can not be used, and ACK_RC can be used to refer to that this pattern is " ACK and lasting " like this.In the case, the identical speed rates of the bag that can just confirm of " ACK with continue " indication travelling carriage is newly wrapped.As previously mentioned, if send ACK_STOP, the base station also can send to cover on the F-GCH that is the MS appointment and authorize.In this example, NAK will indicate " NAK and stop ", unless the corresponding NAK of authorizing together transmits.In the case, non-dominant base also sends ACK_STOP or ACK_RC, and wherein ACK_RC does not have the rate controlled order, and indication " ACK and lasting ".
Under another example AD HOC, comprise described characteristic subclass travelling carriage only through-rate control bit (base station in the effective pilot set of its F-RCCH) control.This pattern can be provided with by other message by the L3 signaling or in the bag data call process in channel allocation.Under this pattern, if bag does not successfully receive, then the base station sends NAK.When bag was correctly received, the base station can together send ACK_STOP or ACK_RC with F-RCCH (RATE_HOLD, RATE_INCREASE or RATE_DECREASE).In the end the NAK behind the son bag can have F-RCCH (RATE_HOLD, RATE_INCREASE or RATE_DECREASE).
Figure 10-12 illustrates the synchronous example of the multiple channel described herein of explanation.This example is not represented any regioselective frame length, but explanation mandate, ACK and rate controlled (RC) designator is synchronous relatively.ACK designator, RC designator and mandate occur in the same time interval process so that travelling carriage receives ACK, RC and authorization message when roughly next bag transmission is used.In these examples, travelling carriage except when its confirmation of receipt maybe when all son bags have been transmitted (as described in the above example embodiment), do not need to monitor RC.Mobile station supervision is distributed to this travelling carriage and is distributed to ACK bit according to the RC designator of specific ARQ sequence.For example, if four ARQ sequences are arranged, and travelling carriage transmits on all ARQ sequences, then mobile station supervision every frame ACK designator and every frame RC designator (under usable condition).Empty frame between multiple transmission is introduced into so that as the base station that is suitable for or travelling carriage are free receives and sub-bag, mandate, affirmation and rate controlled order are asked, transmitted in decoding.
Attention, these synchronous charts are not limit, only with explaining above-mentioned multiple aspect.Those skilled in the art will recognize that the combination of multiple sequence.
Figure 10 depict example embodiment with the affirmation channel that merged and rate control channel synchronously.Travelling carriage is transmitted in the request that R-REQCH goes up transmission.The base station is transmitted on F-GCH subsequently and is authorized with response request.Travelling carriage uses subsequently according to the parameter transmission first son bag of authorizing.This child bag is not correctly decoded in the base station, and is indicated as the strikethrough of child bag transmission.The rate controlled order of base station transmits on transmission of the ACK/NAK on the F-ACKCH and F-RCCH.In this example, NAK is transmitted, and F-RCCH is through DTX.Travelling carriage receives NAK and retransmits the second son bag with in response.This time, travelling carriage is correctly decoded the second son bag, and sends ACK/NAK transmission and the rate controlled order on F-RCCH on the F-ACKCH once more.In this example, do not transmit additional authorization.Transferring ACK _ RC and send rate controlled order (this order can be indicated the increase determined according to the scheduling of expectation, reduces or be kept).Travelling carriage uses subsequently with authorizing relevant conduct must be transmitted the first son bag of next bag by the parameter of the change of the rate controlled order on F-RCCH.
Figure 11 depict have the affirmation channel that merged and rate control channel and the new example embodiment that authorizes synchronously.Transmission request, authorize, son bag transmission (not being correctly decoded) and NAK be identical with above-mentioned the first eight frame according to Figure 10.In this example, the second son bag transmission that also can correctly receive and decode.Yet ACK_STOP is transmitted, rather than ACK_RC is sent by the base station.Do not add to ACK_STOP if authorize, then travelling carriage will be returned to autonomous transmission.Authorize but transmission is new.Travelling carriage does not need to be this frame monitoring F-RCCH.Travelling carriage wraps according to first son of new next bag of authorized transmissions then.
Figure 12 depicts has affirmation channel and the rate control channel that has merged, but do not have the example embodiment that authorizes synchronously.This example is authorized with the request of response initial movable platform except not sending, and is identical with Figure 10.Like this, the first son bag transmission of first bag is with autonomous speed rates.Equally, this son wraps in the base station and is not correctly decoded.The second son bag is correctly decoded once more, and ACK_RC and rate controlled order are together transmitted.Travelling carriage sends next bag with the speed that may adjust subsequently.This example explanation is only used the rate controlled order and is not used any mandate to change the possibility of travelling carriage speed arbitrarily.
Note, in another embodiment, the rate controlled of the autonomous transmission of request before the base station can be used and be had or do not have.Because not transmission request, although BS may not know demand data, available reduction (reduction) is congested to reduce, and can give and increase when unnecessary capacity is arranged.
Figure 13 depicts the example embodiment of the system 100 that comprises special-purpose rate controlled signal and shared rate controlled signal.Special-purpose rate control channel (F-DRCCH) from the base station 104 to travelling carriage 106 transmission.F-DRCCH and forward direction acknowledgement channel (F-ACKCH) together have affirmation to be provided, to authorize and carry out the function of rate controlled continuously with above-mentioned F-ACKCH and the essentially identical mode of F-RCCH.The base station can send special-purpose rate control channel to each of a plurality of travelling carriages.In this embodiment, travelling carriage also transmits shared rate control channel (F-CRCCH).Shared rate control channel can be used as the speed of controlling the travelling carriage group simultaneously.
Figure 14 depicts the embodiment of the system 100 that comprises forward direction expansion acknowledgement channel (F-EACKCH).F-EACKCH can replace acknowledgement channel (being above-mentioned F-ACKCH) and rate control channel (being F-RCCH).According to multiple aspect of the present invention, the function of two channels can be merged into a channel.F-EACKCH is transferred to one or more travelling carriages 106 from one or more base stations 104.F-CRCCH can together transmit with F-EACKCH, as mentioned above, below is described in further detail.Yet the notion of shared rate controlled is different with the notion of expansion acknowledgement channel, so these two do not need to be merged.(at this, in Figure 14 by dotted line signal F-CRCCH).
For example, F-ACKCH can comprise the order according to 2 Bit data patterns (having 4 states).The information that ACK-can be continued is merged into first state with the order that is used for the data rate increase.ACK-can be continued information and be used for the order that data rate reduces and merge into second state.ACK-stops to can be the third state, and NAK is as four condition.This one of four states can be by representing according to the I and the Q modulation format planisphere of technology known to usually.
Figure 15 depicts the example planisphere that is suitable for using on F-EACKCH.Known to present technique, this planisphere can utilize quadrature amplitude modulation (QAM) technology to use.In other embodiment, can use any two signals with the order of mapping bidimensional, as shown.
In this embodiment, 7 points are distributed to multiple order.Empty transmission (0,0) point is assigned to NAK_HOLD.This can be most probable transmission command, and therefore, can distribute thus to keep through-put power and capacity.As shown, multiple other orders that are assigned to the each point on the circumference comprise ACK_INCRESE, ACK_HOLD, ACK_DECREASE, NAK_DECREASE, NAK_INCREASE and ACK_STOP.In these orders each can be used as single QAM modulation symbol and sends.Each order is to corresponding with a pair of order that the similar collection of F-RCCH channel (analogous set) upward sends at F-ACKCH.The son bag is correctly decoded before the ACK_INCREASE indication, and the speed that follow-up sub-bag can increase sends.The son bag is correctly decoded before the ACK_HOLD indication, and follow-up sub-bag can have speed now and is transmitted.The son bag is correctly decoded before the ACK_DECREASE indication, and follow-up sub-bag can be transmitted, although be the speed rates to reduce.The son bag is correctly decoded before the ACK_STOP indication, but abolishes any mandate before and/or the rate controlled order.Travelling carriage is only transferred to autonomous transmission (if being suitable for).
NAK_INCREASE indication bag is not correctly decoded.Subsequent transmission can higher rate be sent out (for example, possibility is owing to loosen capacity limit).In one embodiment, the rate controlled order in the end is sent out after the transmission of son bag.Another embodiment can allow the rate controlled transmission that NAK is arranged at any time.With similar form, the son bag is not correctly decoded before the NAK_DECREASE indication, and subsequent transmission must be carried out with the speed that reduces.The son bag is not correctly decoded before the NAK_HOLD indication, and subsequent transmission can have speed now and carries out.
Can be introduced into although those skilled in the art recognize that NAK_STOP order (or other order), in the example of Figure 15, not be used this order.The multiple scheme of NAK_STOP (the above detailed description in detail) of being used to encode also can together be used with F-EACKCH.
Those skilled in the art will recognize that and to use the multiple planisphere that comprises any command set (or its combination), as described here.Planisphere can be designed to multiple order, command set or command type are provided kinds of protect grade (that is the correct possibility that receives).
Figure 16 depicts another kind and be applicable to the planisphere that uses on F-EACKCH.This example has illustrated the rate controlled of removing the NAK order.Multiple ACK order comprises ACK_HOLD, ACK_INCREASE, ACK_DECREASE and ACK_STOP.For above-mentioned reasons, null command (0,0) is assigned to NAK.In addition, can see that the distance between NAK and any ACK order equates, and this distance can be configured to any value and thinks that the NAK of expectation provides error probability.
Multiple planisphere can be designed to have the command set group of desired characteristic.For example, can be the point that the NAK call allocation is close together relatively, can be the point that the ACK call allocation is close together relatively, and these two groups can be by relatively large distance separately.In the method, although the probability that the class command type in a group is obscured for the another kind of order in this group may increase, corresponding the reducing of probability that set type is obscured.So ACK is less may to be identified as NAK by mistake, vice versa.If reduce, increase or keep being discerned by mistake, then the subsequent rate control command can be used as compensation.(notice that for example when reducing or keep being sent out, the indication of increase can increase the interference to other channels in the system.)
Figure 17 depicts and be applicable to the three dimensional example planisphere that uses on F-EACKCH.Three-dimensional planisphere can form to indicate the value of each by using any three signals.Perhaps, individual signals can be time multiplexing, to transmit one or more dimensions information in very first time section, transmits the information of the one or more additional dimensions in one or more second dimensions subsequently.Those skilled in the art will recognize that this can be extended to any dimension.In an example, QAM signal and bpsk signal can be by synchronous transmission.The QAM signal can transmit x and y axis information, and bpsk signal transmits the z axis information.The constellation generation technique is that present technique is known.
The example of Figure 17 further specifies the notion of combination away from the ACK order of NAK order.Notice, littler in the relative distance between ACK_STOP, ACK_DECREASE, ACK_HOLD and the ACK_INCREASE than the distance between any ACK order and any NAK order (in this example, comprising NAK_HOLD, NAK_INCREASE and NAK_DECREASE).Like this, the probability of the likelihood ratio rate command of travelling carriage mistake recognition and verification order is little.Those skilled in the art can form content application disclosed herein the planisphere that comprises any command set, and it has the protection collection identical to these orders, or has the protection that distributes in any desired mode.
Figure 18 depicts the embodiment that is used for handling in the base station method 750 of the transmission receive, and this method comprises and is applicable to above-mentioned affirmation and the rate controlled used as step 750.Considered that before step 750 request (if any) of base station before having received made any desired mandate, receives mandate and autonomous transmission and carried out the scheduling that comprises these and other factors.
This embodiment of step 750 begins in square frame 1810.Any required mandate that is suitable for is made according to the scheduling of carrying out before in the base station.In square frame 1820, generate ACK or NAK order with transmission before confirming.This affirmation order can merge or combination with the order or the existing order (rate controlled that comprises autonomous transmission) of authorizing of rate controlled of mandate before the expansion.Signal transmission for square frame 1820 places can be used any technology of explanation herein, and it comprises the rate controlled of separation and the affirmation rate controlled signal of confirmation signal and merging.
In square frame 1830, the ACK_STOP order can be sent out, and should be returned to autonomous mode from authorizing before with the indication travelling carriage.In this embodiment, ACK_STOP also can be used as the indication travelling carriage from monitor special-purpose rate control channel (being F-DRCCH) be converted to the monitoring shared rate controlled signal (being F-CRCCH).In another embodiment, can select other orders to monitor the transformation of shared rate control channel monitoring from special-purpose rate control channel with indication.Definable is used for the particular command of this purpose.This particular command also can together be included in the channel of merging with the one or more points on the planisphere, and maybe this order can be sent out by signaling.In square frame 1840, one or more base stations provide affirmation for follow-up autonomous transmission.In square frame 1850, shared rate controlled is used as the speed of the travelling carriage of the shared rate control channel of the one or more monitoring of change subsequently.Subsequent process can finish.
Figure 19 depicts the embodiment of the method 1900 that is used to respond shared or special-purpose rate controlled.Can response use as the travelling carriage of the base station of above combination with reference to Fig. 7 and shared and special-purpose rate controlled shown in Figure 180 in using method 1900.Process begins in decision block 1910.In this example, special-purpose rate controlled provides with authorizing.The travelling carriage of operation will not monitored shared rate control channel under authorizing.In another embodiment, also can indicate the travelling carriage of operation under authorizing to follow shared rate controlled signal, or distribute to unauthorized travelling carriage with special-purpose rate control channel.These schemes are not described in Figure 19, but according to herein disclosure, those skilled in the art will be easy to utilize multiple any signal transmission technology, use this kind embodiment with and revision.In decision block 1910, if travelling carriage operation under authorizing before, then process proceeds to square frame 1940.
At square frame 1940, mobile station supervision authorization channel (that is, F-GCH), affirmation and rate control channel (it can be the F-EACKCH of aforesaid F-ACKCH and F-DRCCH or merging).In square frame 1945,, proceed to square frame 1950 if the ACK_STOP order is received.In this embodiment, ACK_STOP is used as appointment and is returned to autonomous transmission, shown in square frame 1950.Be described in further detail as following, ACK_STOP also specifies from monitoring the conversion of special-purpose rate control channel to the shared rate control channel of monitoring.In other example, the order except ACK_STOP also can be used as the conversion of appointment monitoring from special use to shared rate control channel, and this order does not need identical with the order that is used to be returned to autonomous transmission.Behind square frame 1950, process can stop.In example embodiment, as needs, method 1900 will constantly repeat.
In decision block 1945,, proceed to square frame 1955 if do not receive ACK_STOP.In square frame 1955, travelling carriage can be according to ACK/NAK, rate controlled and/or the authorization channel command transfer that may receive.Subsequently, the process that is used for current repetition can finish.
Turn back to decision block 1910, if the current not operation under authorizing before of travelling carriage then proceeds to decision block 1915.In decision block 1915, if on authorization channel, receive mandate, proceed to square frame 1920 and transmit according to the mandate that receives, process can stop thereafter.Notice, in this example, as mentioned above, authorize to be used as and indicate travelling carriage will monitor special-purpose rate control channel.Like this, in the follow-up repetition of method 1900, this travelling carriage will proceed to square frame 1940 from decision block 1910, as mentioned above.In a further embodiment, can use and be used to indicate the replacement technology that is transformed into the monitoring of special-purpose rate controlled.
In decision block 1915, if do not receive mandate, the shared rate channel of mobile station supervision is as shown in decision block 1925.If send shared rate controlled order, proceed to square frame 1930.Travelling carriage is adjusted speed and sustainable with revision speed autonomous transmission according to shared rate controlled order.Subsequent process can stop.
If do not receive shared rate controlled order in decision block 1925, proceed to square frame 1935.Travelling carriage is sustainable with the present rate autonomous transmission.Subsequently, process can stop.
Figure 20 depicts the alternative embodiment of method 750, and this method is used to handle the transmission that receives, and comprises being applicable to affirmation and the rate controlled of using in above-mentioned steps 750.This embodiment illustrates and uses extended acknowledgement channel (F-EACKCH) to confirm and rate controlled to merge.Considered before step 750, the base station has received asks, makes any suitable mandate before any, receive mandate comprise the scheduling of these and other factors with autonomous transmission and execution.
This embodiment of step 750 starts from square frame 2005.Make as any required mandate applicatory, as painting in square frame 2010 according to the scheduling of carrying out before the base station.In decision block 2015, determine ACK or NAK transmission to receive before the response.ACK or NAK will together be merged F-EACKCH with the merging that following detailed description is provided with rate controlled.
If ACK will be sent out, proceed to decision block 2020.If comprise the rate controlled that keeps present rate (being that ACK-continues) (determining) for target MS expectation, proceed to decision block 2030 as any dispatching office of carrying out in step before.In decision block 2030, increase if desired, then proceed to square frame 2035 and on F-EACKCH, send ACK_INCREASE.Subsequent process can finish.Whether if not needing increases, then determining needs to reduce in decision block 2040.Reduce if desired, proceed to square frame 2045 on F-EACKCH, to transmit ACK_DECREASE.Subsequent process can finish.Do not need to reduce if promptly do not need to increase yet, then can keep.Proceed to square frame 2050 on F-EACKCH, to transmit ACK_HOLD.Process can finish then.Each that notice this three ACK order also is used as expansion mandate before with rate controlled.
In decision block 2020, if do not need rate controlled, then on F-EACKCH, transmit ACK_STOP, as shown in the square frame 2025.Process can finish then.When ACK_STOP is used by Figure 18-19 embodiment that is described, for example, when wherein having used shared and special-purpose rate controlled, ACK_STOP is an example can indicating the order that travelling carriage changes to shared rate controlled monitoring from special use.In this example, ACK_STOP has stopped any mandate before, and travelling carriage will be transferred to autonomous transmission subsequently.
Turn back to decision block 2015,, take turns to NAK then if not with transferring ACK.As mentioned above, whether respond last son bag, have the multiple scheme that merges rate controlled and NAK according to NAK.In other embodiments, those schemes also can be involved in method depicted in figure 20.At this embodiment, if in decision block 2055, NAK does not respond last son bag, proceeds to square frame 2060, to transmit NAK_HOLD on F-EACKCH.As mentioned above, this order indication bag is not correctly decoded, and next height bag can present rate transmit.Process can finish then.
In decision block 2055, if the last son bag of NAK response proceeds to decision block 2065.If do not need rate controlled, proceed to square frame 2060 on F-EACKCH, to transmit NAK_HOLD, as mentioned above.Notice, in another embodiment, also can comprise additional command.For example, can use NAK_STOP to be used for sending NAK, the mandate before abolishing simultaneously to the child bag.According to disclosure herein, those skilled in the art will recognize that multiple other combination.
In decision block 2065, rate controlled proceeds to decision block 2070 if desired.Increase if desired, proceed to square frame 2075 on F-EACKCH, to transmit NAK_INCREASE.Otherwise, proceed to square frame 2085 on F-EACKCH, to transmit NAK_DECREASE.Process can finish then.Notice, in this example, the default na K shown in square frame 2060, promptly NAK_HOLD can reach from decision block 2065.If other embodiment promptly, comprise NAK_STOP, be used, can use the additional decision path similar to comprise other paths of transmitting NAK_HOLD to above-mentioned square frame 2040-2050.
Figure 21 describes to be used to receive and respond the method 2100 of F-EACKCH.In one embodiment, method 2100 can be used in the travelling carriage of the base station that response is transmitted according to above-mentioned several different methods, and this several different methods comprises the method that those are described in Fig. 7,18 and 20.This method begins in square frame 2110, and wherein the mobile station supervision authorization channel is (that is, F-GCH) to determine whether to receive mandate.
In square frame 2120, travelling carriage is also monitored the F-EACKCH of the child bag that transmits before the response.Travelling carriage is according to the ACK on the F-EACKCH or NAK indication transmission or re-transmission subsequently.Also can also have the mandate of any reception to carry out the change of transmission rate according to any STOP, HOLD, INCREASE or the DECREASE on F-EACKCH.Subsequent process can finish.
Below further specify multiple other embodiment that comprise shared and special-purpose rate controlled.
Travelling carriage in soft handover can be monitored shared rate controlled that come from all sub-districts effective pilot set, that come from its subclass or that only come from Serving cell.In an example embodiment, only when all F-CRCCH channels that come from the cell set of monitoring were indicated the increase of the data rate that allows, each travelling carriage can increase its data rate.This has improved interference management.So example is indicated, because the difference of its effective pilot set size, the data rate of a plurality of travelling carriages in soft switching process can be different.Can use F-CRCCH to hold more processing gain than F-DRCCH.Like this, for same transmission power, it is inevitable more reliable.
Consider that rate controlled can be configured to shared rate controlled (that is, the single designator of every part), special-purpose rate controlled (by single mobile station special use) or group rate controlled (one or more groups in one or more travelling carriages).According to which rate controlled pattern selected (this can be instructed to travelling carriage by the L3 signaling), travelling carriage can have the different rules of adjusting according to the speed of rate controlled bit, that is, particularly, RATE_INCREASE and RATE_DECREASE.For example, if be shared rate controlled, this speed is adjusted at random, and if be special-purpose rate controlled, this speed is adjusted into deterministic.According to disclosure herein, multiple other changes are conspicuous.
In addition, in above-mentioned multiple example, suppose that rate controlled is every HARQ channel.Just, when travelling carriage bag back reception affirmative acknowledgement in the end or negative response, it only pays close attention to the rate controlled order, and determines the speed adjustment of next transmission on identical ARQ channel.It can not focus on the rate controlled order in the re-transmission.Therefore, base station transmission rate control command in re-transmission not.
For shared rate controlled or group rate controlled, can predict the replacement rule of above-mentioned rule.Particularly, the base station can be in re-transmission the transmission rate control command.Therefore, travelling carriage can be in re-transmission the cumulative speed control command, and be applied to next bag transmission.In this example, we suppose that rate controlled still is every HARQ channel.Yet F-ACKCH and F-RCCH are as two channels with independent operation.These technology also can be summarized as the rate controlled of crossing over all ARQ channels (or its subclass).
The effective pilot set of mandate, affirmation and rate controlled
Figure 22 has described an example embodiment of system 2200.System 2200 is applicable to and uses the system of describing as Fig. 1 100.One or more base station 104A-104Z and base station controller (BSC) 2210 communicate.Known in the present technique, the base station that utilizes any various protocols to BSC connect can be wired or wireless.Configurable one or more travelling carriage 106A-106N, and they can move in 104 overlay areas, base station that BSC2210 is connected with it or pass this regional movement.Travelling carriage 106 is being defined in the described standard before with the base station communication that uses one or more communication formats, the example.For example, travelling carriage 106A is illustrated and base station 104A and 104M radio communication, and base station 106N is illustrated to communicate by letter with 104Z with base station 104M.
BSC2210 comprises effective pilot set 2220A-2220N, and each BSC is corresponding one of them pilot set of mobile stations communicating with it.It is known in the field to be used for determining which travelling carriage at any given time is positioned at the multiple switching and the registration scenarios of overlay area of system 2200.Each travelling carriage 106 have with BSC in effective pilot set 2220 in a corresponding effectively pilot set 2230.Effectively pilot set 2220 is identical with effective pilot set 2230 in the corresponding travelling carriage 106 in BSC2210.In example embodiment, in case the BSC decision changes effective pilot set, it changed to the travelling carriage indication in the corresponding operating time.In the operating time of appointment, BSC and travelling carriage all upgrade their effective pilot set.Like this, these two effective pilot sets keep synchronously.In another embodiment, if do not use this simultaneous techniques, these two set can asynchronously be transmitted effective pilot set renewal up to signalling or certain other mechanism.Can utilize any different technologies that effective pilot set 2220 or 2230 is stored in the memory, this is well known in the art.In current system and among the example embodiment, BSC determines effective pilot set for each travelling carriage.Generally, in other embodiments, travelling carriage or BSC can all or part ofly determine effective pilot set.In the case, synchronous for the pilot set of remaining valid, the change in will be indicated to another.
In traditional C DMA cellular system, effective pilot set of travelling carriage such as following generation.Travelling carriage is via the signal strength signal intensity of one or more base stations to base station controller report adjacent base station.In an example embodiment, this report is finished by pilot frequency intensity test post (PSMM).BSC can utilize the pilot signal strength of report and effective pilot set that other standards are determined travelling carriage subsequently.This effective pilot set is indicated to travelling carriage via one or more base stations.
In an example embodiment, as the 1xEV-DV system, travelling carriage can independently be selected its Serving cell by its CQI of transmission (CQI), and this designator uses the distinctive sequence coverage of this Serving cell.In order to change the sub-district, travelling carriage simply changes sequence coverage.It is multiple for a person skilled in the art that to be used for independently selecting the additive method of base station will be conspicuous.Example comprises to the base station of selecting before, the new base station of selecting or this two kinds of base stations transmission message.
In another embodiment, for example, travelling carriage can independently be selected the effective pilot set in the 1xEV-DV type system of base station therein, base station that can be by storing nearest selection and other monitored base stations of satisfying specific criteria and produce at the place, base station.Travelling carriage also can send to effective pilot set of its generation base station controller with the additional effective pilot set of assisted Selection, the effective pilot set of mandate as described below, affirmation and rate controlled.
Travelling carriage can merge the signal that a plurality of base stations from effective pilot set are come at the appropriate time.For example, FCH (basic channel) or DCCH (Dedicated Control Channel), the example signal of listed before various standards can be transmitted from the effective pilot set that comprises a plurality of base stations and be merged at travelling carriage.In these examples, the effective pilot set that is associated with example signal is handled the place decision by BSC or other central authorities usually.
Yet in example 1xEV-DV embodiment, F-PDCH sends from single base station usually, as mentioned above.Like this, travelling carriage does not make a plurality of F-PDCH signals merge.Reverse link signal can be merged in one or more base stations.It is specially suitable that part merges, and wherein a plurality of parts of single base station (or other close the part of putting) can be merged.By suitable high bandwidth backhaul (backhaul), can imagine different base station and also can merge the signal that receives.In the example cellular system of configuration now, usually use and select to merge, the transmission that the base station decodes of wherein respectively separately being located receives (may be softer assembling section), and whether successfully respond according to separating decoding.If success, the transmission that receives can be forwarded to BSC (or other destinations of the bag that receives), and confirms to be transferred to travelling carriage.If any receiver is correctly decoded this bag, then think transmission success.Principle disclosed herein can be used for any forward direction or reverse link consolidation strategy.
The clear effective pilot set of expansion that is suitable for as effective pilot set 2220 or 2230 of depicting in Figure 23.Multiple effective pilot set is illustrated as and oval is included in base station in effective pilot set with explanation.The base station (that is, they can be regarded as Vean diagram) that ellipse indication overlapping or that surround comprises in more than a type of effective pilot set jointly.The example of illustrating among this Figure 23 is expanded effective pilot set 2230 or 2230 and is comprised the effective pilot set 2310 of FCH type (the replacement example comprises the effective pilot set as the travelling carriage generation of above-mentioned 1xEV-DV F-PDCH channel).Effectively pilot set 2310 can be used as the effectively function of pilot set of tradition, just, is used for respectively in travelling carriage or group of base stations (and/or part) reception and merging forward direction or reverse link signal.In the explanation herein, the group that is included in the effective pilot set in expansion effective pilot set 2220 or 2230 that below is described in further detail also can be configured to independent effectively pilot set, and this is tangible to those skilled in the art.
Efficiency confirmed, and pilot set 2320 is discerned base stations, and the forward direction acknowledgement channel will be from this base station transmits.But the base station acknowledge order in efficiency confirmed pilot set 2320 is to the travelling carriage relevant with this effective pilot set, and this confirms that the example of ordering as above describes in detail.Can not need base station in efficiency confirmed pilot set in the free acknowledge order of institute.This travelling carriage that is associated can be monitored the affirmation channel that those base stations from efficiency confirmed pilot set are come.In example embodiment, travelling carriage does not need to monitor the affirmation channel that the base station outside efficiency confirmed pilot set is come, but complexity and/or the power consumption in the energy minimization travelling carriage like this.By effective maintenance efficiency confirmed pilot set, can reduce to be used to discern the signaling or the other technologies of required affirmation channel, increase effective use of shared resource thus.
As the example of possible efficiency gain, can consider to be used for determining which base station other point-to-point signaling methods to travelling carriage transmission signal specific.This point-to-point signal sends and can need more power or resource allocation.Another advantage is simple and effectively divides the Walsh channel that is used in the different signalings of transmission.In those skilled in the art will recognize that in many cases, the Walsh tree is used the factor determining capacity that can be.
In the example of Figure 23, pilot set is illustrated as in effective pilot set 2310 subclass that efficiency confirmed is although this not necessarily.These two set can be equal, and, how to be defined the superset of efficiency confirmed pilot set 2320 can be effective pilot set 2310 according to effective pilot set 2310.
Authorize the subclass of effective pilot set 2340 pilot set 2320 that is illustrated as that efficiency confirmed.Equally, this only is an example.This authorizes effective pilot set can be used as which base station of indication can to transmit and authorize the travelling carriage that is associated.Like this, but this effective pilot set of travelling carriage use authority that is associated with the identification authorization channel, mandate can come from these channels, and can limit it thus those channels are monitored, and may minimize complexity in the travelling carriage and/or power consumption.By the pilot set of safeguarding effectively that efficiency confirmed, can reduce to be used to discern the signal transmission or the other technologies of the authorization channel of needs, increased effective use of shared resource like this.Can authorize effective pilot set 2340 to reduce by adopting from the expense that signal sends.As an example that may add actual gain, consider a kind of replacement technology, the number of authorizing the base station that can make mandate wherein is unrestricted.Connect relative more weak base station with travelling carriage and may not have the accurate situation of the channel condition close with travelling carriage.If make mandate in the case, the mandate that comes from this kind base station can produce this base station system performance problems of (with its travelling carriage that is connected respectively).
The effective pilot set of this authorization channel can be moved platform and independently change.As mentioned above, travelling carriage can independently change Serving cell by the sequence coverage of changing its CQI.When travelling carriage is independently changed its serving BS, have other and be used to upgrade the scheme that this authorizes effective pilot set.Be set in the effective pilot set size of authorization channel under 1 the situation, travelling carriage can produce in Serving cell when changing at it and upgrade the effective pilot set of authorization channel, thinks that single authorized base station is a Serving cell.Another that is not limited to authorize effective pilot set size is chosen as to be provided with authorizes effective pilot set to empty set, and travelling carriage waits for the arrival of news to comprise one or more new base stations in authorizing effective pilot set.Perhaps, each base station can have the tabulation of the predetermined or indication of other authorized base station that will use when selecting corresponding base station.Also can use multiple other schemes.
When the new travelling carriage of knowing in its overlay area (that is, receiving the new sequence of CQI message), the base station can be to the autonomous BSC transmission signal of gravity treatment of travelling carriage, like this copy that BSC can the effective pilot set of its travelling carriage of corresponding renewal.Travelling carriage also can send message to BSC via one or more base stations.Generally speaking, the notion of serving BS may with the notion of authorizing effective pilot set irrelevant (although generally authorizing effective pilot set can comprise serving BS).For example, signaling can be used to indicate mobile station supervision from the next authorization channel of the particular list of each base station, and travelling carriage can independently be selected its serving BS (that is, sending the base station of F-PDCH) arbitrarily simultaneously.
The subclass of the effective pilot set 2350 of rate controlled can be illustrated as also that efficiency confirmed pilot set 2320.It is illustrated as and authorizes effective pilot set 2340 to overlap.Equally, this only is an example.Multiple other embodiment below are described in detail in detail.The effective pilot set of rate controlled can be used as which base station of indication can be to the travelling carriage transmission rate control command or the channel that are associated.Like this, the travelling carriage that is associated can use the effective pilot set of rate controlled with the recognition rate control channel, and mandate can come from this channel, and can limit it like this and monitor those channels, may minimize complexity in the travelling carriage and/or power consumption.By the pilot set of keeping effectively that efficiency confirmed, the signal that can reduce to be used to discern required rate control channel sends or other technologies, has increased effective use of shared resource like this.Notice that as above affirmation/the rate control channel of the merging of being described in detail also can together use with effective pilot set of explanation herein.Those skilled in the art will be easily according to the above-mentioned various embodiments of content improvement disclosed herein.
In Figure 23, the subclass of the effective pilot set 2350 of rate controlled is illustrated as that efficiency confirmed pilot set 2320, and overlap with authorizing effective pilot set 2340.Equally, this only is an example.As an illustration, can make the base station of any energy reception and the rl transmission of may decoding attempt decoding and transmit appropriately to accept one's fate order really in response.Yet the channel situation between travelling carriage and one or more these base stations may be very poor, to such an extent as to do not need those base stations to authorize or the rate controlled travelling carriage.Like this, can use the effective pilot set 2320 of relatively large affirmation.
Configurable in efficiency confirmed more greatly pilot set 2320 other base stations so that their performances enough by force to carry out rate controlled, but may not expect (for example to authorize, with respect to travelling carriage, the more weak base station of performance may not be fully recognized that the effect to the mandate of the stronger base station of performance).Other factors also may begin to work.For example, mandate may consume a large amount of forward link expenses.Rate controlled still can be carried out in the relatively more weak base station of performance when not using the required power in excess of good transmission mandate.Rate controlled usually need be than authorizing less bit, and the example as mentioned above.And owing to make the speedup adjustment, rate control loop can have more high fault tolerance, and this loop can be corrected voluntarily.According to its value and the magnitude variations introduced by mistake, mandate may cause the great changes of speed in the travelling carriage.Power system capacity may reduce more serious in this case.Like this, as situation under, wish to use and the effective pilot set 2350 of rate controlled of authorizing effective pilot set 2340 to separate or overlapping with its part.According to disclosure herein, those skilled in the art will will distribute the multiple technologies of base station to be used for various effective pilot sets easily.
Figure 24 depicts the example of replacing the effective pilot set 2220 of expansion or 2230.In this example, the effective pilot set 2350 of rate controlled is for authorizing the superset of effective pilot set 2340.So, if desired, rate controlled also can be used in each base station in authorizing effective pilot set.Some base stations in the effective pilot set 2350 of rate controlled are not authorized to authorize with transmission.A mandate that contrast overlaps and a reason of the effective pilot set of rate controlled are that some base stations may be not used in scheduling and dispose, or are not used in rate controlled and dispose.Can find only scheduling authorization and do not do the other reasons of rate controlled of other restriction base stations.For example, in some instances, the characteristic of the data that just are being transmitted can make its quick variation, more is applicable to authorization method.In addition, some data can make it better be applicable to method of rate control.But the example of Figure 24 has illustrated as the effective pilot set 2340 of the mandate of the subclass of the effective pilot set 2350 of rate controlled.Those skilled in the art will recognize that the structure of multiple effective pilot set according to content disclosed herein.
Figure 25 depicts another example of replacing the effective pilot set 2220 of expansion or 2230.In this example, there is not the effective pilot set 2350 of rate controlled.In addition, can use the effective pilot set 2350 of rate controlled, but it is empty.In the case, at least to only finishing by authorizing to dispatch with the resource allocation of the travelling carriage that is associated.There is not rate controlled this moment.Multiple factor can cause this kind configuration, as the characteristic of data, or lacks support to rate controlled in network or travelling carriage.In this example, efficiency confirmed, and pilot set 2320 is the superset of authorizing effective pilot set 2340.
Figure 26 depicts another example of replacing the effective pilot set 2220 of expansion or 2230.In this example, do not authorize effective pilot set 2340.In addition, the effective pilot set 2340 of configurable mandate, but it is empty.In the case, at least for the resource allocation of the travelling carriage that is associated only through-rate control finish.Do not authorize scheduling this moment.Multiple factor can cause this kind configuration, as the characteristic of data, or lacks in network or travelling carriage authorizing the support of scheduling.In this example, efficiency confirmed, and pilot set 2320 is the superset of the effective pilot set 2350 of rate controlled.
Size and the structure of noticing effective pilot set can be as the needs continuous updatings, to produce the realization of multiple scheduling or rate controlled resource allocation.This effective pilot set can be updated the characteristic of the data that just are being transmitted with response.For example, as illustrated before, (, burst, relatively large data volume or to responsive especially data of time) wishes to authorize scheduling when needs increase fast or reduce data rate.Or for stable data stream, rate controlled can provide the required control of low expense.By the plurality of distribution method of restriction to the base station in each effective pilot set, can effectively control rl transmission, so the place is described in detail, and adjacent cells is disturbed in not transition.Simultaneously, keep flexibility ratio to support multiple QoS grade etc.
In the system of closing on, a supplier can use the function collection different with another.For example, a supplier may not support to authorize scheduling.Or, a not supporting rate control of supplier.The performance of the configuration of multiple base station can be by they being included in each effective pilot set and is involved.
Effectively pilot set can comprise the base station of arbitrary number, comprises zero.Another scheme of not illustrated is authorized for the pilot set 2320 that comprises that efficiency confirmed does not comprise or the effective pilot set 2220 of expansion or 2230 of the effective pilot set of rate controlled (or, also can be empty mandate and the effective pilot set of rate controlled).In the case, travelling carriage only effectively is included into autonomous transmission.This travelling carriage can be by authorizing effective pilot set to suppress the transmission request of any needs to keep resource and to reduce expense when empty.The combination of any mandate, affirmation and the effective pilot set of rate controlled can be used within the scope of the invention.
Figure 27 depicts the case method 2700 that is used to generate the effective pilot set of expansion such as effective pilot set 2220 or 2230.In this example, method 2700 can be carried out in BSC 2210, although those skilled in the art will recognize that method 2700 or its part also can be adapted at carrying out in travelling carriage 106 or the base station 104.
This process starts from square frame 2705, wherein the pilot signal strength of base station is measured message and (that is, PSMM) is received from travelling carriage.Notice, in a further embodiment, other base station measurements, or other select relevant information to receive at the BSC place with the effective pilot set of expansion.
In decision block 2710,, proceed to square frame 2715 if the standard of selecting is satisfied in the information that receives indication base station in authorizing effective pilot set.Otherwise, proceed to decision block 2725.Multiple standards comprises signal strength signal intensity, can be used as make definite.The example of other factors that can comprise as mentioned above.
In square frame 2715, the base station has been satisfied rule, so the base station is added into the effective pilot set of the mandate that is used for corresponding travelling carriage.In square frame 2720, message or signal are sent to travelling carriage, indicate it base station should be joined it and authorize in effective pilot set.Notice, if the base station in authorizing effective pilot set, square frame 2715 and 2720 can be omitted (not shown details).
If in decision block 2725, the base station is in authorizes effective pilot set, proceeds to square frame 2730 with its removal, because it no longer satisfies standard.In square frame 2735, send indication to travelling carriage and should remove the message or the signal of corresponding base station from authorizing effective pilot set.
In decision block 2740,, proceed to square frame 2745 if the standard of selecting is satisfied in the information that receives indication base station in the effective pilot set of rate controlled.Otherwise, proceed to decision block 2755.Multiple standards comprises signal strength signal intensity, can be used as make definite.The example of other factors that can be comprised as mentioned above.
In square frame 2745, standard has been satisfied in the base station, so the base station is added into the effective pilot set of the rate controlled of corresponding travelling carriage.In square frame 2750, send message or the signal that the indication travelling carriage should join the base station the effective pilot set of its rate controlled to travelling carriage.Notice, if the base station in the effective pilot set of rate controlled, square frame 2745 and 2750 can be omitted (not shown details).
If in decision block 2755, the base station is in the effective pilot set of rate controlled, then proceed to square frame 2760 with its removal, because it has no longer satisfied this standard.In square frame 2765, send indication should be removed corresponding base station from the effective pilot set of rate controlled message or signal to travelling carriage.
In decision block 2770,, proceed to square frame 2775 if the standard of selecting is satisfied in the information that receives indication base station in efficiency confirmed pilot set.Otherwise, proceed to decision block 2785.Multiple standards comprises signal strength signal intensity, can be used as make definite.The example of other factors that can be comprised as mentioned above.
In square frame 2775, standard has been satisfied in the base station, so the base station is added in the effective pilot set of the affirmation of corresponding travelling carriage.In square frame 2780, send the indication travelling carriage to travelling carriage and the base station should be joined it efficiency confirmed message or signal in the pilot set.Notice, if square frame 2775 and 2780 (not shown details) in efficiency confirmed pilot set, can be omitted in the base station.
If in decision block 2785, in the base station is in that efficiency confirmed the pilot set, proceed to square frame 2790 with its removal, because it has no longer satisfied standard.In square frame 2795, send message or the signal that indication should be removed corresponding base station from efficiency confirmed pilot set to travelling carriage.
The process of being described for method 2700 can be a plurality of base stations of each of a plurality of travelling carriages are repeated.In another embodiment, can omit a plurality of subclass of the step of being illustrated.For example, if not supporting rate control or mandate scheduling can be removed corresponding steps.Under the situation that does not depart from the scope of the invention, method step can be exchanged.
Figure 28 depicts the method 2800 that is used for according to the effective pilot set transmission of expansion.Process is from square frame 2810.According to communication system of just using or standard, intrasystem each travelling carriage is made around the measurement of their a plurality of base stations.Also can make systematic survey at place, the employed various base station of whole system.This measurement can be forwarded to central authorities and handle the place, as BSC or a plurality of destination as Distributed Calculation.
In square frame 2815, each travelling carriage that can be in the system generates and the effective pilot set of renewal expansion.The measurement of making and other standards can be used as determines the effective pilot set of expansion, and the example of this measurement and standard as mentioned above.In example embodiment, efficiency confirmed pilot set, authorize effective pilot set and the effective pilot set of rate controlled to be included in the effective pilot set of expansion.In other embodiments, can use effective pilot set of other selections.
In square frame 2820, indicate effective pilot set information to suitable target, as effective pilot set of the expansion upgraded.In an example, indicate effective pilot set by one or more base stations to each travelling carriage from BSC.In another embodiment, if effective pilot set of some or all expansions is determined in other places, as at travelling carriage or base station place, this determines to be transferred to BSC or other base stations subsequently on demand.
Which in square frame 2825, signal to transmit channel to a plurality of travelling carriages according to the effective pilot set indication of expansion to the base station.For example, will signal, and indicate this base station to send suitable mandate to each travelling carriage to the base station of the effective pilot set of mandate that joins travelling carriage.Certainly, only signaled in the base station at its state Shi Caixu that changes.
In square frame 2830,, send to intrasystem travelling carriage by the base station and to confirm according to efficiency confirmed pilot set.Can be recognized the transmission of order or signal according to the other technologies known to above-mentioned any example and any present technique field.
In square frame 2835, authorize according to authorizing effective pilot set to send by the travelling carriage of base station in system.Can make the transmission of mandate according to the other technologies in above-mentioned any example and any other present technique field.
In square frame 2840, according to the effective pilot set of rate controlled by the travelling carriage transmission rate control command of base station in system.Can make the transmission of rate controlled order or signal according to any above-mentioned example and any other technologies known in the art.
In square frame 2845, each travelling carriage is expanded effective pilot set monitoring and controlling channels according to each.In square frame 2850, the order that receives on the channel of travelling carriage transmission in response to monitoring.
Figure 29 depict be used for travelling carriage (as travelling carriage 106) in the effective pilot set of the expansion case method 2900 of communicating by letter.Process begins in square frame 2910, wherein the base station around the moving table measuring.Can be from the base station or BSC send the parameter of measuring as adjacent base station to travelling carriage.In another embodiment, can when the measurement that does not have travelling carriage to generate, generate the effective pilot set of expansion.
In square frame 2915, travelling carriage is to the effective pilot set information of BSC (or other effective pilot set processing unit, as base station or other central processing units) transmission.This effective pilot set can be included in the measurement of making in the square frame 2910.Also can transmit any effective pilot set of making in travelling carriage in case of necessity selects.For example, in the 1xEV-DV system, travelling carriage can independently be selected serving BS.Can send this selection from the base station or from travelling carriage itself.
With reference to figure 27-28, BSC or other devices can generate information and the effective pilot set of other standards renewal expansion according to travelling carriage as mentioned above.If make the effective pilot set revision of expansion, it can be indicated to corresponding travelling carriage.In decision block 2920, upgrade if receive effective pilot set, proceed to square frame 2925 to change each effective pilot set or a plurality of effective pilot set.Proceed to decision block 2930.
In decision block 2930, if in efficiency confirmed pilot set, one or more base stations are arranged, then monitor the affirmation channel that comes from each base station, shown in the square frame 2935.Proceed to decision block 2940 subsequently.
In decision block 2940,, then monitor the authorization channel that comes from each base station, as shown in square frame 2945 if in authorizing effective pilot set, one or more base stations are arranged.Then proceed to decision block 2950.
In decision block 2950,, then monitor the rate control channel that comes from each base station, as shown in square frame 2955 if in the effective pilot set of rate controlled, one or more base stations are arranged.Proceed to square frame 2960 subsequently.
In decision block 2960, travelling carriage can be adjusted its transmission rate to respond any mandate or the rate controlled order that it may receive on the channel of monitoring.Travelling carriage can transmit the bag of new bag or re-transmission transmission before in response to any affirmation order or message on the channel of monitoring.Subsequent process can finish.
Figure 30 depicts and is applicable to the example message that changes to the effective pilot set notice of expansion.Can use these message by the method for explanation before any.The message that is apparent that among Figure 30 for a person skilled in the art to be described is only for illustrative.This message can be regular length or variable-length.The field of this message can be any size.Message is applicable to multiple modulation format.Message can be comprised in other message of using in the system or comprise this other message.A plurality of type of messages are known to the present technique, and can be suitable for using according to content disclosed herein.
Add message 3000 can be used as the indication base station should be added to the expansion effective pilot set.Notice that this message can be transferred to any two devices or transmit from any two devices.In example embodiment, BSC can generate the message that majority is used for being transferred to via one or more base stations one or more travelling carriages.Field 3005 Indication messages of message are for adding message.The travelling carriage that field 3010 identifications are associated with effective pilot set, and it can be used as the reception of identification message.Field 3015 comprises the identifier that is associated with the base station that will be added into.In another message embodiment, can be added into simultaneously more than a base station, field 3015 will comprise one or more base station identifiers like this.Field 3020 can be used as effective pilot set that the indication base station should be added into.Identifier can be associated with expansion each effective pilot set in effective pilot set (that is, identifier is corresponding authorizes effective pilot set, and another identifier corresponding speed is controlled effective pilot set, another is corresponding efficiency confirmed pilot set, or the like).
Deletion message 3030 can be used as the indication base station and should be deleted from expand effective pilot set.Similar to message 3000, have and be used for the identification message field 3035 of (it also can comprise other headers).Field 3040 is discerned the travelling carriage that is associated with effective pilot set, and can be used as the reception of identification message.Field 3045 comprises and the identifier that deleted base station is associated.In another message embodiment, can be deleted simultaneously more than a base station, field 3045 will comprise one or more base station identifiers like this.As message 3000, field 3050 can be used as effective pilot set that the indication base station will be added into.
List message 3060 can be used as indicates whole effective pilot set immediately.For example, any effective pilot set that is included in the effective pilot set of expansion can be defined by list message.List message can be sent out when sky to remove effective pilot set.Similar with message 3000 and 3030, have and be used for the identification message field 3065 of (it also can comprise other headers).Field 3070 is discerned the travelling carriage that is associated with effective pilot set, and can be used as the reception of identification message.Field 3075A-3075N comprises N the identifier that base station be associated interior with being included in effective pilot set.As message 3000 and 3030, field 3080 can be used as the effective pilot set of identification by the station list definition.
Should be noted that in above-mentioned all embodiment, under the situation that does not depart from the scope of the invention, method step can exchange.Explanation disclosed herein is in many cases with reference to the signal, parameter and the process that are associated with the 1xEV-DV system, but scope of the present invention is not limited thereto.Those skilled in the art will be easily be applied to multiple other communication systems with principle herein.These embodiment and other modifications are conspicuous for a person skilled in the art.
Those skilled in the art will recognize that information and signal can be represented by any technology in the multiple different technologies.For example, data, instruction, order, information, signal, bit, symbol and the chip of institute's reference can be represented by voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or light particle or its any combination in the above description.
Those skilled in the art will recognize further that multiple illustrative logical blocks, module, circuit and the algorithm steps that interrelates with disclosed embodiment herein can be implemented as electronic hardware, computer software or their combination.In order to offer some clarification on the replaceability of this hardware and software, multiple declaration element, square frame, module, circuit and step above are being illustrated with regard to its function.Whether this function is implemented as hardware or software, by the limit decision of added application-specific and design on the total system.
Multiple and disclosed embodiment is relevant herein illustrative logical blocks, module and circuit can be realized or carried out by general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic devices, separation gate or transistor logic, isolating hardware element or any its combination that is designed to carry out the function of explanation herein.General processor can be microprocessor, and but then, this processor can be any conventional processors, controller, microcontroller or state machine.Processor also can be embodied as the combination of calculation element, for example, and microprocessor or any other configuration of the combination of DSP and microprocessor, a plurality of microprocessor, one or more and DSP nuclear association.
Can be embodied directly in hardware, in the software module of carrying out by processor with the step of the method for disclosed embodiment associated descriptions herein or algorithm or in these two combinations, realize.Software module can place RAM memory, flash memories, ROM memory, eprom memory, eeprom memory, register, hard disk, removable hard disk, CD-ROM or any storage medium form known in the art.The illustrative storage medium is connected to processor, and this processor can read from storage medium or writing information in storage medium.On the other hand, storage medium is one to processor.Processor and storage medium can place ASIC.ASIC can place user side.On the other hand, processor and storage medium can be used as resolution element and are placed in the user side.
Explanation for disclosed embodiment more than is provided, any those skilled in the art has been realized or use the present invention.Multiple improvement to these embodiment is apparent to those skilled in the art, and the General Principle of definition herein can be applied to other embodiment under the situation that does not depart from the spirit or scope of the present invention.Therefore, the embodiment that the present invention is not limited to illustrate herein, but corresponding with the wide region that is consistent of principle disclosed herein and novel characteristics.
Claims (10)
1. equipment that is used for monitoring message, it comprises:
Be used to generate the processor of the tabulation that comprises zero or more a plurality of identifiers, described tabulation is associated with first called station, and the identification of each identifier is used for sending to described first called station one of a plurality of second communication platforms of first message; And
Be used for transmitting to described first called station transmitter of second message, wherein, described processor also generates and comprises the zero next from described tabulation or described second message of more a plurality of identifiers;
Described second message indicates described first called station from delete identifier the tabulation of the identifier of the described first called station stored.
2. equipment as claimed in claim 1 is characterized in that, the described tabulation that is associated with first called station generates according to one or more preassigneds.
3. equipment as claimed in claim 1, the receiver that also comprises the measurement that is used to receive the second communication platform, it is characterized in that, described processor comprise with described and tabulation that first called station is associated in the identifier that is associated of described second communication platform, the described tabulation that is associated with first called station generates according to the described measurement that receives and according to one or more preassigneds.
4. equipment as claimed in claim 1 is characterized in that, described second message is identified in a column identifier of the described first called station stored.
5. equipment as claimed in claim 1, it also comprises the transmitter that is used for transmitting to the second communication platform of discerning in the described tabulation that is associated with first called station the 3rd message, and the described second communication platform of described the 3rd authorization of messages is to transmit described first message to described first called station.
6. equipment that is used for monitoring message, it comprises:
Be used to generate the processor of the tabulation that comprises zero or more a plurality of identifiers, described tabulation is associated with first called station, and the identification of each identifier is used for sending to described first called station one of a plurality of second communication platforms of first message;
Be used for transmitting to described first called station transmitter of second message, wherein, described processor also generates and comprises the zero next from described tabulation or described second message of more a plurality of identifiers; Wherein said second message indicates described first called station that identifier is added in the tabulation of the identifier of the described first called station stored.
7. method that is used for monitoring message, it comprises:
Generation comprises the tabulation of zero or more a plurality of identifiers, and described tabulation is associated with first called station, and the identification of each identifier is used for sending to described first called station one of a plurality of second communication platforms of first message; And
Transmit second message to described first called station, described second message comprises zero or the more a plurality of described identifier in the described tabulation;
Wherein, described second message is indicated the tabulation of described first called station with the identifier in being stored in described first called station and is deleted identifier.
8. method as claimed in claim 7 also is included in the described identifier that the described first called station stored is come from described second message.
9. method as claimed in claim 7, it comprises that also the second communication platform of discerning transmits the 3rd message in described and tabulation that first called station is associated, the described second communication platform of described the 3rd authorization of messages transmits described first message to described first called station.
10. method that is used for monitoring message, it comprises:
Generation comprises the tabulation of zero or more a plurality of identifiers, and described tabulation is associated with first called station, and the identification of each identifier is used for sending to described first called station one of a plurality of second communication platforms of first message; And
Transmit second message to described first called station, described second message comprises zero or the more a plurality of described identifier in the described tabulation;
Wherein said second message indicates the tabulation of the identifier of described first called station in being stored in described first called station to add identifier.
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| PCT/US2004/025361 WO2005015941A2 (en) | 2003-08-05 | 2004-08-04 | Grant, acknowledgement, and rate control active sets |
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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 |
| US8995559B2 (en) * | 2008-03-28 | 2015-03-31 | Qualcomm Incorporated | Signaling message transmission in a wireless communication network |
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2004
- 2004-08-04 UA UAA200602383A patent/UA90456C2/en unknown
- 2004-08-04 CN CNB2004800266245A patent/CN100566443C/en not_active Expired - Fee Related
- 2004-08-04 ES ES08165791T patent/ES2364869T3/en not_active Expired - Lifetime
- 2004-08-04 CN CN2004800290070A patent/CN1864432B/en not_active Expired - Fee Related
- 2004-08-04 CN CN200910178280.4A patent/CN101668316B/en not_active Expired - Fee Related
- 2004-08-04 UA UAA200602388A patent/UA89357C2/en unknown
- 2004-08-04 CN CN200480028767XA patent/CN1864428B/en not_active Expired - Fee Related
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| 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 |
| EP0996304A1 (en) * | 1998-10-19 | 2000-04-26 | Nortel Matra Cellular | Method and apparatus for setting up a connection to a target base station in a cellular or cordless mobile communications system |
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Also Published As
| Publication number | Publication date |
|---|---|
| ES2364869T3 (en) | 2011-09-15 |
| CN101668316B (en) | 2014-04-02 |
| CN1864432A (en) | 2006-11-15 |
| CN101668316A (en) | 2010-03-10 |
| CN1853434A (en) | 2006-10-25 |
| UA89357C2 (en) | 2010-01-25 |
| CN1864432B (en) | 2010-12-22 |
| UA90456C2 (en) | 2010-05-11 |
| CN1864428A (en) | 2006-11-15 |
| CN100566443C (en) | 2009-12-02 |
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