CN101610546A - Blind check dispatching method and equipment in the TDS-CDMA system - Google Patents
Blind check dispatching method and equipment in the TDS-CDMA system Download PDFInfo
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Abstract
The present invention relates to TDS-CDMA system, disclose blind check dispatching method and equipment in a kind of TDS-CDMA system.Can under the situation that guarantees professional transmission, save the electric energy of terminal.Among the present invention, earlier the predetermined blind check parameter of designated user equipment is measured; , measurement result changes the blind check frequency of this subscriber equipment and the density of blind detection resource if satisfying predetermined condition.
Description
Technical field
The present invention relates to TDS-CDMA system, particularly the blind check technology in the TDS-CDMA system.
Background technology
Along with the continuous development of the communication technology and user raising day by day to quality of service requirement, the message transmission rate that reaches as high as 2Mbit/s that third generation partner program (3rd Generation Partnership Project, be called for short " 3GPP ") standard defined before Release 4 versions can not satisfy the user gradually to the demand of high-speed data service.In the case, 3GPP has introduced high speed downlink packet access (High Speed Downlink Packet Access is called for short " HSDPA ") technology in Release 5 standards.
HSDPA is a kind of enhanced scheme that 3GPP Release 5 proposes, main purpose is the high speed support to Packet data service, and obtaining lower time delay, higher throughput of system and stronger service quality (Quality of Service is called for short " QoS ") guarantees.From technical standpoint, HSDPA is by introducing high-speed downlink shared channel (High Speed Downlink SharedChannel, be called for short " HS-DSCH ") the enhancing air interface, and in universal mobile telecommunications system grounding wireless access network (UMTS Terrestrial Radio Access Network is called for short " UTRAN "), strengthen corresponding functional entity.From bottom, mainly be to introduce mixed self-adapting repeat requests (Hybrid Automatic Repeat Request, be called for short " HARQ ") and adaptive modulation and coding (AdaptiVe Modulation and Coding, abbreviation " AMC ") technology increase data throughout.
The HARQ system is at automatic repeat requests (Automatic Repeat Request, abbreviation " ARQ ") introduces a forward error correction (Forward Error Correction in the system, be called for short " FEC ") subsystem, be used for correcting the error pattern of frequent appearance to reduce number of retransmissions, promptly in the error correcting capability scope, automatically correct a mistake, exceed the error correction scope and then require transmitting terminal to resend data, this has increased the reliability and the efficiency of transmission of system.That is to say that the channel condition that H-ARQ can adapt to moment automatically provides trickle data rate adjustment.The AMC technology makes system in the scope of restriction, can adjust modulation and coded system adaptively according to the change of channel quality.In an AMC system, those channel conditions that sit pretty are user (normally those users very near apart from the base station) preferably, can be endowed the modulation system of high-order and the coded system of two-forty (such as 16QAM and 1/2 Turbo encoding rate); And the relatively poor user's (normally those are in the user of cell boarder) of those channel conditions that are in unfavorable position then is endowed the modulation system of low order and the coded system of low rate (such as QPSK and 1/3 Turbo encoding rate).
Fig. 1 shows the physical layer procedure of existing HSDPA.See also Fig. 1, the physical layer procedure of HSDPA mainly may further comprise the steps.
Step S101: subscriber equipment (User Equipment, abbreviation " UE ") detects one's own High-Speed Shared Control Channel (High Speed-Shared Control Channel, be called for short " HS-SCCH ") message, receive this message and demodulation, this message is indicated information such as the resource allocation conditions of next HS-DSCH transmission and modulation system.UE is also sometimes referred to as terminal.
Step S102:UE receives HS-DSCH according to information such as the resource allocation conditions of HS-SCCH indication and modulation systems.
Step S103:UE measures accordingly to HS-DSCH.
Step S104: according to measurement result to HS-DSCH, UE selects suitable transmission block size and modulation system, and produce channel quality indication (Channel Quality Indicator, be called for short " CQI "), wherein the channel quality indication comprises recommendation modulation system RMF and recommends transmission block size RTBS.
The CQI that step S105:UE produces is at corresponding high-speed shared information channel (High SpeedShared Information Channel, abbreviation " HS-SICH ") reports to base-station node (Node BaseStation, be called for short " Node B "), Node B is also sometimes referred to as the base station.
Step S106:Node B sends to UE with new control information by HS-SCCH, returns step S101.
HS-SCCH is the down control channel that TD-HSDPA (being TD-SCDMA HSDPA) uses, and is a physical channel, and it is used to carry all relevant bottom control information.That is to say that under existing protocol, UE receives the data of HS-DSCH channel and must just can finish under the cooperation of HS-SCCH control information.HS-SCCH is shared by all UE that initiate the HSDPA business, but to single HS-DSCH Transmission Time Interval Transmission Time Interval (Transmission Timing Interval, be called for short " TTI "), each HS-SCCH can only be a relevant downlink signaling of UE carrying HS-DSCH.
HS-DSCH is a service carrying channel, is mapped on this physical channel of high-speed physical downlink shared channel (HS-PDSCH) (HighSpeed-Physical Downlink Shared Channel is called for short " HS-PDSCH ").
In 3GPP, two kinds of dual-modes are arranged, one is time division duplex (Time Division Duplex is called for short " TDD "), one is Frequency Division Duplexing (FDD) (Frequency Division Duplex is called for short " FDD ").The HSDPA process of two kinds of access technologies is basically identicals, but the sequential relationship of each interchannel that HSDPA relates to is different.
Fig. 2 shows among the TD-SCDMA, the sequential relationship of HS-SCCH, HS-PDSCH and HS-SICH interchannel.In this illustrated example, the special time slot in the TD-SCDMA frame structures such as the DwPTS that do not draw, UpPTS only illustrates 7 common time slots, and HS-SCCH, HS-PDSCH and HS-SICH are distributed in time slot 3,5 and 1 respectively; And HS-PDSCH only distributes and has taken a time slot, so this time slot is the first HS-PDSCH time slot of HS-DSCH channel, also is its last HS-PDSCH time slot simultaneously.
Correspondence is effectively HS-PDSCH distribution next time, the corresponding gap information of HS-DSCH carries on HS-SCCH, this information provides according to a restriction: to an appointment UE, between the HS-DSCH (on the time) of the HS-SCCH that carries the HS-DSCH corresponding information and first indication a n is arranged
HS-SCCHThe skew of 〉=3 time slots.In this restriction, do not consider DwPTS and UpPTS.The corresponding gap information of HS-DSCH does not refer to two subframes subsequently, but always points to together or next subframe.
UE effectively follows on the HS-SICH at the next one and sends the corresponding ACK/NACK of HS-DSCH and need following qualification: specify UE to one, a n is in the end arranged between HS-PDSCH of a distribution (on the time) and the HS-SICH
HS-SICHThe skew of 〉=9 time slots.In this restriction, do not consider DwPTS and UpPTS.Therefore, the HS-SICH transmission needs always carrying out in a subframe behind the HS-DSCH.
Specific to Fig. 2, the first HS-PDSCH time slot that the HS-SCCH 201 of n subframe is dispatched not is the HS-PDSCH 204 of this subframe, and should is the HS-PDSCH 202 of n+1 subframe, satisfies n because the latter is first
HS-SCCHThe skew of 〉=3 time slots.Equally, the pairing HS-SICH of the HS-PDSCH202 of n+1 subframe is not to be the HS-SICH 205 of n+2 subframe, and should be the HS-SICH 203 of n+3 subframe, satisfies n because the latter is first
HS-SICHThe skew of 〉=9 time slots.
In existing protocol, HS-DSCH transmission each time must just can be finished under the cooperation of HS-SCCH signaling.With respect to big data packet traffic transmission, the expense of HS-SCCH signaling is less, yet transmission for the small data packets business, such as packet voice (Voice over IP, abbreviation " VoIP ") and so on internet protocol multimedia subsystem (IP Multimedia Subsystem, be called for short " IMS ") real time business, it is considerable that the expense of HS-SCCH signaling just seems, therefore must manage to reduce signaling consumption.
For adapting to the transmission of small data packets business such as VoIP, in the FDD-HSDPA system, introduced HS-SCCH Less operation, generally, be exactly that each transmission block transmits first and do not need HS-SCCH indication, but according to the configuration of high-level signaling, terminal is carried out blind check to predefined HS-PDSCH and is received the row cache of going forward side by side; And when first bust this retransmits, using new HS-SCCH type to cooperate transmission, control terminal merges HS-PDSCH data and the blind check time institute data in buffer that retransmits, thereby reaches the purpose of saving the HS-SCCH signaling.
Blind check comprise detection that the relevant parameter (as transmission block size, modulation system, coded system etc.) that receives data is carried out and (or) to receiving whether data are the detections that send to self.In FDD, terminal will use the size of maximum 4 kinds of transmission blocks that data are decoded, to detect the transmission block parameter that receives data; And use the terminal iidentification of self that CRC (cyclic redundancy check (CRC)) result is carried out mask calculating, whether send to terminal self to detect data.
Fig. 3 shows a HS-SCCH Less process in the FDD system.
Step S401: terminal begins to receive HS-SCCH; After receiving Part 1, beginning step S402 and S403.
Whether the entrained UE sign of step S402: terminal judges HS-SCCH Part 1 points to self, if execution in step S407 then; Execution in step S403 then if not.
Step S403: the HS-PDSCH channel that terminal begins to receive and blind check is predetermined; Execution in step S404 afterwards.
Step S404: whether the predetermined HS-PDSCH channel of terminal judges has carried the UE sign of pointing to self, and whether CRC is correct.If, execution in step S405 then; Execution in step S406 then if not.
Step S405: terminal sends ACK to the base station and confirms.Afterwards, finish this operation.
Step S406: the data of terminal after with blind check are delivered in the BUFFER buffer memory of reservation.Afterwards, finish this operation.
Step S407: judge that whether the HS-SCCH channel is the novel HS-SCCH channel HS-SCCH channel of HS-SCCH Less operation (promptly at), if, execution in step S408 then; If not, execution in step S409 then.
Step S408: according to the indication of novel HS-SCCH, receive HS-PDSCH, and indicated with this HS-SCCH, the data that before are buffered among the BUFFER merge, decoding.Execution in step S410 afterwards.
Step S409: receive the indicated HS-PDSCH of conventional H S-SCCH channel, receive and carry out conventional HS-DSCH process.Afterwards, finish this operation.
Step S410: whether the HS-PDSCH CRC that terminal judges receives is correct.If, execution in step S411 then; Execution in step S412 then if not.
Step S411: terminal sends ACK to network, and finishes this operation.
Step S412: whether terminal judges is to retransmit for the first time, if, execution in step S413 then; If not, execution in step S414 then.
Step S413: the HS-PDSCH business datum after terminal will merge is cached among the BUFFER, and sends NACK to network.Finish this operation afterwards.
Step S414: terminal abandons the HS-PDSCH business datum that receives, and sends NACK to network.Finish this operation afterwards.
With reference to the FDD-HSDPA system, the TD-HSDPA system also can introduce above-mentioned HS-SCCHLess process, to reduce the HS-SCCH signaling consumption under some business.But because TD-HSDPA and FDD-HSDPA's is different, introduce this process, need suitably revise.
Different with the FDD terminal, employed spreading code is shorter among the TD-SCDMA, and terminal need be used joint detection algorithm, and the amount of calculation of this algorithm is bigger, and then brings more power consumptions.Therefore, for the HS-SCCH Less process among the TD-HSDPA, if network is indicated on the predefine HS-PDSCH resource to terminal, the business datum that sends to the terminal of carrying out blind check of being carried is very few, just, by the terminal predefined resource of blind check repeatedly, and it is very few to use this resource really to send to the number of times of this terminal, to cause this terminal to carry out insignificant blind check too much, then must cause the terminal waste of electric energy, because terminal is not to have sent on oneself the data to detecting to energy charge.
Therefore, there is scheme to propose, in TD-HSDPA, introduce the discontinuous distribution of HS-SCCH Less predefine blind detection resource, promptly the TD-SCDMA terminal is not that each subframe is all carried out blind check, but, in the cycle of certain-length, only require terminal blind check part subframe wherein by the requirement of disposing.The blind check pattern that just has been terminal configuration, terminal can be carried out the blind check operation by pattern, and is not configured to the subframe in the pattern, and terminal need not blind check.Network is only undertaken by terminal on discrete subframe of blind check at these, sends data to these terminals; For example, can configurating terminal in the first subframe blind check predefine resource of per 4 subframes, and need not blind check in other 3 subframes.Though this scheme has limited network and has sent the randomness of data to certain terminal, as long as parameter is provided with rationally, just can be under the prerequisite of the professional real-time performance of assurance, reduce terminal as much as possible to being not the data that send to self are carried out blind check.
Simultaneously, be similar to the discontinuous reception of HS-SCCH Less (Discontinuous Reception, abbreviation " DRX ") process also is suggested, mainly tackle between professional quiet period, for example the terminal use is during speaking, its Data Receiving direction is mourned in silence substantially, because the other user is mainly listening.This DRX process allows terminal not detect data in blind check repeatedly, and when dispatch by HS-SCCH, carries out blind check in the cycle of a lengthening, promptly reduces the frequency of execution blind check, thereby reaches purpose of power saving more.And the state exchange between normal frequency, the low frequency blind check also can be controlled UE by signaling by network.
In addition, network also can pass through signaling, stops, starting the blind check operation of terminal, or reconfigure the predefine resource that terminal need be carried out blind check.
At this, network has sent data to UE on a predefine resource, the data of this UE that have been called as this predefine resource " carrying "; If network sends data to UE a predefine resource, then be called as this predefine resource and " zero load " data of this UE.UE blind check on the predefine resource has detected the data that send to this UE, is called as UE and " detects " on this resource; If UE blind check on the predefine resource does not detect the data that send to this UE, be called as UE " inspection is empty " on this resource.
Easily see, on a predefine resource, " carrying " the UE data, might not " be detected " by this UE, and may " inspection empty "; And " zero load " data of UE, then almost " detected " by UE scarcely, and can be by " inspection is empty ".
In the total degree of UE blind check, unloaded number of times can directly have influence on the power consumption of UE.Usually, the operating current of UE radio frequency part is about 40～50 milliamperes during reception, is about 300 milliamperes during emission; The baseband portion electric current is generally about 80～120 milliamperes.Except main devices such as display screens, this two-part power consumption is the key factor that influences the UE duration of call.
From above-mentioned data as seen, power consumption accounts for 1/4～1/3 of the whole power consumptions of transmitting-receiving during this two parts accepting state.If VoIP is a symmetrical service, promptly receive and dispatch shared duration equalization, can obtain simple assessment result, if do not consider the re-transmission factor, when unloaded number of times account for total blind check number of times 50% the time, power consumption increases about 25%; If account for 10% of total blind check number of times, power consumption increases about 3%.
From above-mentioned analysis as seen, network can dispose, control, change the blind check operation of UE, comprises the predefine resource of its blind check, the frequency of blind check, the start-stop of blind check etc.
But in existing communication agreement, the scheme that proposed, but do not control clearer and more definite regulation at the state of " carrying ", " zero load " of foundation UE in blind check operation, " detecting ", " inspection sky ", especially to be " zero load " number of times account for total blind check number of times proportion this influence the factor of UE power consumption, do not have clear and definite regulation.This will cause existing HS-SCCH Less process, can some the time bring business datum to transmit situation untimely or that the UE power consumption increases.
For example, network is after having disposed the blind check pattern of UE, if in a long period (for example a hundreds of subframe, several seconds even tens seconds), even if adopted operations such as discontinuous distribution, HS-SCCH LessDRX, the bandwidth of resource that UE carries out blind check is during much larger than professional actual bandwidth, should network be adjusted blind check pattern or the blind check state of UE? a similar scene is, two users carry out video calling earlier, do not interrupt afterwards having closed video and having proceeded voice call under the situation of traffic.If at this moment network is not adjusted the blind check pattern of UE, the bandwidth that will cause the UE blind detection resource is much larger than practical business speed.
Equally, opposite with above-mentioned situation, with respect to a blind check pattern, when service rate improved in the long period (for example a hundreds of subframe, several seconds even tens seconds), for example, the user switches to visual telephone by the voice voip phone, and the bandwidth that then can cause the UE blind detection resource is much smaller than practical business speed, if untimely adjustment then can cause the business datum transmission lag.
Summary of the invention
The object of the present invention is to provide blind check dispatching method and equipment in a kind of TDS-CDMA system, can under the situation that guarantees professional transmission, save the electric energy of terminal.
For solving the problems of the technologies described above, embodiments of the present invention provide blind check dispatching method in a kind of TDS-CDMA system, may further comprise the steps:
Predetermined blind check parameter to subscriber equipment is measured;
, measurement result changes the blind check frequency of this subscriber equipment and the density of blind detection resource if satisfying predetermined condition.
Embodiments of the present invention also provide a kind of network equipment of TDS-CDMA system, comprising:
Measuring unit is used for the predetermined blind check parameter of subscriber equipment is measured;
Judging unit is used to judge whether the measurement result of measuring unit gained satisfies predetermined condition;
Scheduling unit is used for changing the blind check frequency of subscriber equipment and the density of blind detection resource when judging unit judges that measurement result satisfies predetermined condition.
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are:
By in the blind check process of TD-SCDMA, introducing scheduling operation, the physical resource of having avoided UE not carry data accounts for the excessive situation of whole blind detection resource proportions, avoided UE that electric energy is too much expended in the blind check to the predefine resource that do not send data to self, thereby under the situation that guarantees professional transmission, reach the purpose of saving the UE electric energy.
Further, adjustment step-length by the desired value decision blind check frequency that presets thresholding and load-carry duty, can bigger adjusting range be arranged when big presetting thresholding and desired value gap, hour less adjusting range be arranged presetting thresholding and desired value gap, thereby realize adjusting the self adaptation of step-length.
Further, dispatched by aerial signaling by network, the content of scheduling is more flexible, and the state of network and UE can be synchronous preferably.Trigger scheduling by UE according to pre-configured specified conditions, can need not the mutual of aerial signaling, save radio resources.
Description of drawings
Fig. 1 is the physical layer procedure schematic diagram of HSDPA in the prior art;
Fig. 2 be HS-SCCH time slot in the existing TDD system, HS-PDSCH time slot, and the HS-SICH time slot between sequential chart;
Fig. 3 is a HS-SCCH Less process schematic diagram in the existing FDD system;
Fig. 4 is a blind check dispatching method schematic flow sheet in the TD-SCDMA system in the first embodiment of the invention;
Fig. 5 is the TDD system dynamics blind check scheduling process example flow diagram in the first embodiment of the invention.
Embodiment
In the following description, in order to make the reader understand the application better many ins and outs have been proposed.But, persons of ordinary skill in the art may appreciate that even without these ins and outs with based on the many variations and the modification of following each execution mode, also can realize each claim of the application technical scheme required for protection.
For making the purpose, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
In the present invention, network or communication protocol are carried out the configuration of the physical resource of blind check to UE in specific sub-frame (or frame, TTI, cycle), are called " blind check pattern " or " predefine pattern "; If HS-PDSCH that HS-SCCH dispatched is positioned at i subframe (or frame, TTI), then be called UE in i subframe (or frame, TTI) " being dispatched " by HS-SCCH; In HS-SCCH Less process, by the HS-SCCH scheduling, send data retransmission, be called as HS-SCCH " retransfer scheduling "; The blind check frequency is meant the number of times of UE blind check in a period of time, is used to weigh the frequent degree of UE blind check operation.
First embodiment of the invention relates to blind check dispatching method in a kind of TD-SCDMA system, and its flow process as shown in Figure 4.
In step 401, the parameter that network configuration is relevant with HS-SCCH Less process and the trigger condition of scheduling can be the part or all of of following information:
In the N1.HS-SCCH Less process, the parameter of measuring employed parameter and need measuring in the present embodiment is called these parameters predetermined blind check parameter.Predetermined blind check parameter comprises one of following or its combination in any:
N1.1 measurement window w is used to dispose the related time span of one-shot measurement; W can be unit with the time cycle, as subframe, frame, TTI, blind check cycle etc.; Also can express with the blind check number of times, this moment, its implication was consistent with " UE carries out the number of times m of blind check " among the N1.2, and the real time width of measurement window is equivalent to the pairing time span of UE m blind check of execution;
In the pairing time span of N1.2 measurement window, UE carries out the number of times m of blind check;
N1.3 sends the number of times c of data to UE on the predefine resource, promptly in m the blind check of N1.2, network is to the number of times of UE transmission data, that is the number of times of carrying;
N1.4 does not send the number of times k of data to UE on the predefine resource, promptly in m the blind check of N1.2, network does not send the number of times of data to UE, that is unloaded number of times;
N1.5 receives the number of times s that HS-SICH is correctly fed back in the UE blind check, and promptly in m the blind check of N1.2, network receives the number of times that HS-SICH is correctly fed back in the UE blind check;
N1.6 is on the subframe (or frame, TTI) of UE blind check pattern, and the number of times r that is dispatched by HS-SCCH is promptly in the pairing time span of measurement window, if do not dispatched the blind check number of times that UE should carry out, and the difference between the actual blind check number of times m by HS-SCCH.
In the N2.HS-SCCH Less process, the condition that need dispatch the blind check of UE, and to the target that the blind check of UE is dispatched, comprise following parameters partly or entirely:
N2.1. network need be heightened the threshold value Ta of UE blind check frequency, and Ta is called first again and presets thresholding in the embodiment of the present invention;
N2.2. network need be turned down the threshold value Tb of UE blind check frequency, and Tb is called second again and presets thresholding in the embodiment of the present invention;
N2.3. network is adjusted the desired target G that reaches of UE blind check frequency;
G can be load-carry duty, promptly in the number of times of UE blind check, carry the number of times proportion of these UE data, or number of times that carries these UE data and the ratio that does not carry the number of times of these UE data, or based on above-mentioned proportion or ratio calculation and one with carry the numerical value that the number of times proportion is directly proportional;
G also can be no-load ratio, promptly in the number of times of UE blind check, do not carry the number of times proportion of these UE data, or the ratio of the number of times that does not carry these UE data and the number of times of these UE data of carrying, or based on above-mentioned proportion or ratio calculation and a numerical value that is directly proportional with unloaded number of times proportion.
N2.4. network need be adjusted the trigger condition of UE blind check frequency.
After this enter step 402, the predetermined blind check parameter of UE is measured.
When measuring, the pairing time span of step-length of network slip measurement window w can be a subframe, frame, TTI, blind check cycle or the like.Be network in current subframe, frame, TTI, on the blind check cycle, statistics comprise book frame, frame, TTI, blind check cycle before result in the pairing time span of w, comprise statistics blind check number of times m, carrying number of times c, unloaded number of times k etc., obtain measurement result; Afterwards, the moment that next time obtains measurement result is, after the pairing time span of step-length of next subframe, frame, TTI, blind check cycle or w.
After this enter step 403, whether measurement result satisfies predetermined condition, if then enter step 404, measures otherwise get back to step 402 next time.
In step 404, UE is dispatched, wherein key is to change the blind check frequency of this UE and the density of blind detection resource.After this get back to step 402 measures next time.
By in the blind check process of TD-SCDMA, introducing scheduling operation, the physical resource of having avoided UE not carry data accounts for the excessive situation of whole blind detection resource proportions, avoided UE that electric energy is too much expended in the blind check to the predefine resource that do not send data to self, thereby under the situation that guarantees professional transmission, reach the purpose of saving the UE electric energy.
Specifically, in the present embodiment, load-carry duty is defined as c/m or c/w or c/k, and predetermined condition and corresponding scheduling actions are as follows:
If load-carry duty, is then heightened the blind check frequency of UE and the density of blind detection resource greater than Ta.In the preferable example of effect of the present invention, when load-carry duty was c/m, Ta was 95%, and when load-carry duty was c/k, Ta was 19.
If load-carry duty, is then turned down the blind check frequency of UE and the density of blind detection resource less than Tb.In the preferable example of effect of the present invention, when load-carry duty was c/m, Tb was 50%, and when load-carry duty was c/k, Tb was 1.
In some examples of the invention, in the above-mentioned predetermined condition " greater than " can replace with " more than or equal to ", " less than " can replace with " smaller or equal to ".
When load-carry duty was c/m, the step-length of at every turn heightening the blind check frequency was: Ta/G-1.The step-length of at every turn turning down the blind check frequency is: 1-Tb/G.In the preferable example of effect of the present invention, G is 85%.
Adjustment step-length by the desired value G decision blind check frequency that presets thresholding and load-carry duty, can bigger adjusting range be arranged when big presetting thresholding and desired value gap, hour less adjusting range is arranged presetting thresholding and desired value gap, thereby realize adjusting the self adaptation of step-length.
The adjustment step-length that is appreciated that the blind check frequency also can be a fixed value, or based on a variable value of other formula.
When changing the blind check frequency of UE, one of can be in the following manner or its combination in any realize heightening or turning down of blind check frequency:
1. network is carried out the subframe of blind check or the number of frame or TTI by blind check cycle, the blind check cycle planted agent that aerial signaling reconfigures UE, and aerial signaling comprises the RRC signaling, the scheduling of HS-SCCH, the scheduling of HS-SCCH order etc.; Can be by strengthening the blind check cycle of UE, and/or reduce the number of son that blind check cycle planted agent carries out blind check, frame, TTI, to reduce the blind check frequency; Also can be by reducing the blind check cycle of UE, and/or increase the number of son that blind check cycle planted agent carries out blind check, frame, TTI, to improve the blind check frequency.
2. network is periodically dispatched UE by aerial signaling and is entered or withdraw from HS-SCCH Less state, and aerial signaling comprises the RRC signaling, the scheduling of HS-SCCH, the scheduling of HS-SCCH order etc.
3.UE according to the configuration of network, when the proportion that accounts for the blind check number of times at the number of times of these UE data of carrying is lower than predetermined threshold, the automatic pause blind check, or carry out blind check with pre-configured lower blind check frequency.
4.UE, when being dispatched, improve the blind check frequency in the section at the fixed time automatically by HS-SCCH according to the configuration of network.
UE is dispatched by aerial signaling by network, the content of scheduling is more flexible, and the state of network and UE can be synchronous preferably.Trigger scheduling by UE according to pre-configured specified conditions, can need not the mutual of aerial signaling, save radio resources.
For present embodiment is described better, figure 5 illustrates an example of the dynamic dispatching process of the HS-SCCH Less state that the is in UE blind check in the TD-HSDPA system.
S501. network configuration enters S502 afterwards about the following information of HS-SCCH Less process; These information comprise:
W=100 blind check of measurement window promptly judged the every blind check of UE 100 times, exports a measurement result;
Network should be heightened the threshold value Ta=load-carry duty 95% of UE blind check frequency, i.e. the every blind check of UE 100 times has the data at this UE of predefine resource bearing 95 times;
Network should be turned down the threshold value Tb=load-carry duty 50% of UE blind check frequency, i.e. the every blind check of UE 100 times has the data at this UE of predefine resource bearing 50 times;
Network is adjusted the target G=85% of UE blind check frequency, and the every blind check of UE 100 times has the data at this UE of predefine resource bearing 85 times;
S502. network measure is in the UE of HS-SCCH Less state, judges whether UE should carry out blind check, and statistics sends the number of times c of data to UE on the number of times of UE blind check, when the every blind check of UE 100 times, exports one time statistics; Enter step S503 afterwards;
S503. the load-carry duty of this UE of network calculations is c/w; Enter step S504 afterwards;
S504. whether network judges load-carry duty greater than Ta, if, execution in step S505 then; If not, execution in step S506 then;
S505. network improves (Ta/G-1) (being about 12% in this example) approximately with the blind check frequency of UE, and the peak of blind check frequency is continuous blind check, and promptly each subframe of UE all should be carried out blind check; Just, should be carried out subframe, the frame of blind check the blind check cycle of UE, the number of TTI improves about 12%; Afterwards, enter step S506;
S506. whether network judges load-carry duty less than Tb, if, execution in step S507 then; If not, execution in step S508 then;
S507. network reduces (1-Tb/G) (being about 41% in this example) approximately with the blind check frequency of UE, and the minimum of blind check frequency is time-out blind check state, or UE does not carry out blind check continuously; Just, should be carried out subframe, the frame of blind check the blind check cycle of UE, the number of TTI reduces about 41%; Afterwards, enter step S508;
S508. network judges whether UE also is in HS-SCCH Less state, if, execution in step S502 then; If not, execution in step S509 then;
S509. network finishes the adjustment to the blind check process of the UE that withdraws from HS-SCCH Less state.
In the above-mentioned S502 step, network judges that the method whether UE carries out blind check is, when network configuration UE has entered HS-SCCH Less state, and distributing on the predefine resource that UE carries out blind check, on the subframe at this resource place, frame, TTI if network not the HS-SCCH by before dispatch, judge that then UE should carry out blind check on this subframe, frame, TTI.
From above-mentioned steps as seen, when network is judged, in per 100 blind checks of UE, more than the data of all carrying this UE 95 times, then network configuration UE improves the frequency of blind check, avoids because when a large amount of IP bags occurring and arriving out of the blue, postponing appears in transmission; In per 100 blind checks of UE, when being less than the data of carrying this UE 50 times, then network configuration UE reduces the frequency of blind check, avoids UE to expend too much electric energy.The target that network expection reaches is, the every blind check of UE 100 times has the data of carrying this UE 85 times.
Second embodiment of the invention relates to blind check dispatching method in a kind of TD-SCDMA system.Second execution mode and first execution mode are basic identical, and difference mainly is:
Describe predetermined condition with load-carry duty in first execution mode, and describe predetermined condition with no-load ratio in second execution mode, wherein no-load ratio is defined as k/m or k/w or k/c.
In second execution mode, predetermined condition and corresponding scheduling actions are as follows:
If no-load ratio, is then heightened the blind check frequency of UE and the density of blind detection resource less than Ta, in the preferable example of effect of the present invention, when load-carry duty was c/m, Ta was 5%, and when load-carry duty was c/k, Ta was 1/19.
If no-load ratio, is then turned down the blind check frequency of UE and the density of blind detection resource greater than Tb, in the preferable example of effect of the present invention, when load-carry duty was c/m, Tb was 50%, and when load-carry duty was c/k, Tb was 1.
Method execution mode of the present invention can be realized in software, hardware, firmware or the like mode.No matter the present invention be with software, hardware, or the firmware mode realize, instruction code can be stored in the memory of computer-accessible of any kind (for example permanent or revisable, volatibility or non-volatile, solid-state or non-solid-state, medium fixing or that change or the like).Equally, memory can for example be programmable logic array (Programmable Array Logic, be called for short " PAL "), random access memory (Random Access Memory, be called for short " RAM "), programmable read only memory (Programmable Read Only Memory, be called for short " PROM "), read-only memory (Read-Only Memory, be called for short " ROM "), Electrically Erasable Read Only Memory (Electrically Erasable Programmable ROM, be called for short " EEPROM "), disk, CD, digital versatile disc (Digital Versatile Disc is called for short " DVD ") or the like.
Third embodiment of the invention relates to the network equipment of a kind of TD-SCDMA system.This equipment comprises:
Measuring unit is used for the predetermined blind check parameter of UE is measured.Predetermined blind check parameter comprises one of following or its combination in any:
Measurement window w; In the pairing time span of measurement window, UE carries out the number of times m of blind check; In m blind check, network sends the number of times c of data to UE; In m blind check, network does not send the number of times k of data to UE; In m blind check, network is received the number of times s of the correct feedback of UE blind check from HS-SICH; Be on subframe, frame or the TTI of UE blind check pattern the number of times r that is dispatched by HS-SCCH.
Judging unit is used to judge whether the measurement result of measuring unit gained satisfies predetermined condition.If judging unit judges that load-carry duty presets thresholding (Ta) greater than first, then indicate scheduling unit to heighten the blind check frequency of UE and the density of blind detection resource; If judging unit judges that load-carry duty presets thresholding (Tb) less than second, then indicate scheduling unit to turn down the blind check frequency of UE and the density of blind detection resource.Wherein load-carry duty is c/m or c/w or c/k.
Scheduling unit is used for changing the blind check frequency of UE and the density of blind detection resource when judging unit judges that measurement result satisfies predetermined condition.By introduce scheduling operation in the blind check process of TD-SCDMA, the physical resource of having avoided UE not carry data accounts for the excessive situation of whole blind detection resource proportions, thereby under the situation that guarantees professional transmission, reaches the purpose of saving the UE electric energy.
Scheduling unit one of can be in the following manner or its combination in any realize heightening or turning down of blind check frequency:
Blind check cycle, the blind check cycle planted agent who reconfigures UE by aerial signaling carries out the subframe of blind check or the number of frame or TTI;
Periodically dispatch UE by aerial signaling and enter or withdraw from HS-SCCH Less state;
UE is configured to, when the proportion that accounts for the blind check number of times at the number of times of these UE data of carrying is lower than predetermined threshold, the automatic pause blind check, or carry out blind check with pre-configured lower blind check frequency;
UE is configured to, when being dispatched, improves the blind check frequency in the section at the fixed time automatically by HS-SCCH.
First execution mode is and the corresponding method execution mode of present embodiment, present embodiment can with the enforcement of working in coordination of first execution mode.The correlation technique details of mentioning in first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in the present embodiment also can be applicable in first execution mode.
Four embodiment of the invention relates to the network equipment of a kind of TD-SCDMA system.
The 4th execution mode and the 3rd execution mode are basic identical, and difference mainly is: describe predetermined condition with load-carry duty in the 3rd execution mode, and describe predetermined condition with no-load ratio in the 4th execution mode, wherein no-load ratio is defined as k/m or k/w or k/c.
In the 4th execution mode,, then indicate scheduling unit to heighten the blind check frequency of UE and the density of blind detection resource if judging unit judges that no-load ratio presets thresholding (Ta) less than first; If judging unit judges that no-load ratio presets thresholding (Tb) greater than second, then indicate scheduling unit to turn down the blind check frequency of UE and the density of blind detection resource.
Second execution mode is and the corresponding method execution mode of present embodiment, present embodiment can with the enforcement of working in coordination of second execution mode.The correlation technique details of mentioning in second execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in the present embodiment also can be applicable in second execution mode.
Need to prove, each unit of mentioning in the present device execution mode (the 3rd, the 4th execution mode) all is a logical block, physically, a logical block can be a physical location, it also can be the part of a physical location, can also realize that the physics realization mode of these logical blocks itself is not most important with the combination of a plurality of physical locations, the combination of the function that these logical blocks realized is the key that just solves technical problem proposed by the invention.In addition, for outstanding innovation part of the present invention, the said equipment execution mode of the present invention will not introduced not too close unit with solving technical problem relation proposed by the invention, and this does not show that there is not other unit in the said equipment execution mode.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (17)
1. blind check dispatching method in the TDS-CDMA system is characterized in that, may further comprise the steps:
Predetermined blind check parameter to subscriber equipment is measured;
, measurement result changes the blind check frequency of this subscriber equipment and the density of blind detection resource if satisfying predetermined condition.
2. blind check dispatching method in the TDS-CDMA system according to claim 1 is characterized in that, described predetermined blind check parameter comprises one of following or its combination in any:
Measurement window w;
In the pairing time span of measurement window, subscriber equipment is carried out the number of times m of blind check;
In m blind check, network sends the number of times c of data to subscriber equipment;
In m blind check, network does not send the number of times k of data to subscriber equipment;
In m blind check, network is received the number of times s of the correct feedback of subscriber equipment blind check from high-speed shared information channel;
Be on subframe, frame or the Transmission Time Interval of subscriber equipment blind check pattern the number of times r that is dispatched by High-Speed Shared Control Channel.
3. blind check dispatching method in the TDS-CDMA system according to claim 2, it is characterized in that the step that changes the density of the blind check frequency of this subscriber equipment and blind detection resource if described measurement result satisfies predetermined condition comprises one of following substep or its combination:
If load-carry duty presets thresholding greater than first, then heighten the blind check frequency of described subscriber equipment and the density of blind detection resource;
If load-carry duty presets thresholding less than second, then turn down the blind check frequency of described subscriber equipment and the density of blind detection resource;
Wherein load-carry duty is c/m or c/w or c/k.
4. blind check dispatching method in the TDS-CDMA system according to claim 3 is characterized in that, when described load-carry duty was c/m, described first preset gate was limited to 95%, and described second preset gate is limited to 50%
When described load-carry duty was c/k, described first preset gate was limited to 19, and described second preset gate is limited to 1.
5. blind check dispatching method in the TDS-CDMA system according to claim 4 is characterized in that, when described load-carry duty is c/m, and in the step of the blind check frequency of described this subscriber equipment of change,
The step-length of at every turn heightening the blind check frequency is: first presets the desired value-1 of thresholding/load-carry duty;
The step-length of at every turn turning down the blind check frequency is: 1-second presets the desired value of thresholding/load-carry duty.
6. blind check dispatching method in the TDS-CDMA system according to claim 5 is characterized in that, when described load-carry duty was c/m, the desired value of described load-carry duty was 85%.
7. blind check dispatching method in the TDS-CDMA system according to claim 2, it is characterized in that the step that changes the density of the blind check frequency of this subscriber equipment and blind detection resource if described measurement result satisfies predetermined condition comprises one of following substep or its combination:
If no-load ratio presets thresholding less than first, then heighten the blind check frequency of described subscriber equipment and the density of blind detection resource;
If no-load ratio presets thresholding greater than second, then turn down the blind check frequency of described subscriber equipment and the density of blind detection resource;
Wherein no-load ratio is k/m or k/w or k/c.
8. blind check dispatching method in the TDS-CDMA system according to claim 7 is characterized in that, when described no-load ratio was c/m, described first preset gate was limited to 5%, and described second preset gate is limited to 50%;
When described no-load ratio was c/k, described first preset gate was limited to 1/19, and described second preset gate is limited to 1.
9. according to blind check dispatching method in each described TDS-CDMA system in the claim 3 to 8, it is characterized in that, in the step of the blind check frequency of described change subscriber equipment, one of can be in the following manner or its combination in any realize heightening or turning down of blind check frequency:
Network is carried out the subframe of blind check or the number of frame or Transmission Time Interval by blind check cycle, the blind check cycle planted agent that aerial signaling reconfigures subscriber equipment;
Network by aerial signaling periodically scheduling user's set enter or withdraw from High-Speed Shared Control Channel Less state;
Subscriber equipment is according to the configuration of network, when the proportion that accounts for the blind check number of times at the number of times of this customer equipment data of carrying is lower than predetermined threshold, and the automatic pause blind check, or carry out blind check with pre-configured lower blind check frequency;
Subscriber equipment when being dispatched by High-Speed Shared Control Channel, improves the blind check frequency in the section according to the configuration of network automatically at the fixed time.
10. blind check dispatching method in the TDS-CDMA system according to claim 9 is characterized in that, described aerial signaling is one of following:
Radio resource control signaling, the scheduling of High-Speed Shared Control Channel, the scheduling of High-Speed Shared Control Channel order.
11. blind check dispatching method in the TDS-CDMA system according to claim 9, it is characterized in that, blind check cycle, the blind check cycle planted agent that described network reconfigures subscriber equipment by aerial signaling carries out in the mode of number of the subframe of blind check or frame or Transmission Time Interval
By strengthening the blind check cycle of subscriber equipment, and/or reduce the number of son that blind check cycle planted agent carries out blind check, frame, Transmission Time Interval, to reduce the blind check frequency;
By reducing the blind check cycle of subscriber equipment, and/or increase the number of son that blind check cycle planted agent carries out blind check, frame, Transmission Time Interval, to improve the blind check frequency.
12. the blind check dispatching method is characterized in that in the TDS-CDMA system according to claim 11, the step-length of each slip of described sliding window is N subframe or frame or Transmission Time Interval or blind check cycle, and wherein N is a natural number.
13. the network equipment of a TDS-CDMA system is characterized in that, comprising:
Measuring unit is used for the predetermined blind check parameter of subscriber equipment is measured;
Judging unit is used to judge whether the measurement result of described measuring unit gained satisfies predetermined condition;
Scheduling unit is used for judging that at described judging unit described measurement result changes the blind check frequency of described subscriber equipment and the density of blind detection resource when satisfying predetermined condition.
14. the network equipment of TDS-CDMA system according to claim 13 is characterized in that, described predetermined blind check parameter comprises one of following or its combination in any:
Measurement window w;
In the pairing time span of measurement window, subscriber equipment is carried out the number of times m of blind check;
In m blind check, network sends the number of times c of data to subscriber equipment;
In m blind check, network does not send the number of times k of data to subscriber equipment;
In m blind check, network is received the number of times s of the correct feedback of subscriber equipment blind check from high-speed shared information channel;
Be on subframe, frame or the Transmission Time Interval of subscriber equipment blind check pattern the number of times r that is dispatched by High-Speed Shared Control Channel.
15. the network equipment of TDS-CDMA system according to claim 14, it is characterized in that, if described judging unit judges that load-carry duty presets thresholding greater than first, then described scheduling unit is heightened the blind check frequency of described subscriber equipment and the density of blind detection resource;
If described judging unit judges that load-carry duty presets thresholding less than second, then described scheduling unit is turned down the blind check frequency of described subscriber equipment and the density of blind detection resource;
Wherein load-carry duty is c/m or c/w or c/k.
16. the network equipment of TDS-CDMA system according to claim 14, it is characterized in that, if described judging unit judges that no-load ratio presets thresholding less than first, then described scheduling unit is heightened the blind check frequency of described subscriber equipment and the density of blind detection resource;
If described judging unit judges that no-load ratio presets thresholding greater than second, then described scheduling unit is turned down the blind check frequency of described subscriber equipment and the density of blind detection resource;
Wherein no-load ratio is k/m or k/w or k/c.
17. the network equipment according to claim 15 or 16 described TDS-CDMA system is characterized in that, described scheduling unit one of can be in the following manner or its combination in any realize heightening or turning down of blind check frequency:
Blind check cycle, the blind check cycle planted agent who reconfigures subscriber equipment by aerial signaling carries out the subframe of blind check or the number of frame or Transmission Time Interval;
By aerial signaling periodically scheduling user's set enter or withdraw from High-Speed Shared Control Channel Less state;
With user device configuration be, when the proportion that accounts for the blind check number of times at the number of times of this customer equipment data of carrying is lower than predetermined threshold, the automatic pause blind check, or carry out blind check with pre-configured lower blind check frequency;
Be when being dispatched, to improve the blind check frequency in the section at the fixed time automatically with user device configuration by High-Speed Shared Control Channel.
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