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 2M bit/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 1/2Turbo 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 1/3Turbo 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.
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.
In the FDD system, used set of variables HS_SCCH_LESS_PARAMS to preserve the relevant parameter of HS-SCCH Less; Use HS_SCCH_LESS_STATUS is provided with the HS-SCCH Less state with maintenance terminal.As table 1, shown in the table 2.
Table 1 HS_SCCH_LESS_PARAMS
Information element/group is bright |
Multiple |
Type and reference |
Describe |
??U?E?parameters?for??HS-SCCH?less |
|
|
HS-SCCH less parameter |
Table 2 HS_SCCH_LESS_STATUS
Information element/group is bright |
Multiple |
Type and reference |
Describe |
?HS_SCCH_LESS_STATUS |
|
Boolean type |
Very: carrying out HS-SCCH less HS-DSCH transmission when leaving UTRA RRC connection mode, be set to " vacation " |
As shown in table 3, also used cell (Information Element is called for short " IE ") HS-SCCH less information to indicate relevant information among the FDD to terminal.This cell is present in many downstream messages, comprises that cell update, radio bearer message such as reshuffle.In this cell, provide the sign indicating number resource allocation information, transmission block list information etc.
Table 3 HS-SCCH less information
Information element/group is bright |
Multiple |
Type and reference |
Describe |
CHOICE HS-SCCH less operation |
|
|
|
Continue HS-SCCH less operation |
|
|
|
New HS-SCCH less operation |
|
|
|
FDD |
|
|
|
HS-PDSCH Code Index |
|
Integer (from 1 to 15) |
The first sign indicating number of HS-PDSCH channel code number |
Transport Block Size List |
From 1 to.<maxHS-S CCHLess TrBlk 〉 |
|
|
Transport Block Size Index |
|
Integer (from 1 to 90) |
The numbering of MAC-hs transmission block size |
HS-PDSCH Second Code Support |
|
Boolean type |
Whether indication transmission block size has used second HS-PDSCH sign indicating number.If value is true, the numbering of second HS-PDSCH sign indicating number is that " HS-PDSCH Code Index " adds 1. |
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.
At first be, such scheme resource pre-configured aspect at different on TDD and the FDD radio channel resource dividing mode, the pre-configured blind detection resource of TDD is defined as the Resource Block that some code channels and time slot are formed.A plurality of UE can share same pre-configured resource, to improve resource utilization.Blind detection resource has only been stipulated code channel, time slot and transmission block size in the present scheme, so each TTI (length for a TTI of HS-PDSCH channel in TD-SCDMA is a subframe), if the UE in the Less state of activation is not dispatched by HS-SCCH, then this UE can carry out the blind check operation on pre-configured resource.Yet for such as not high business of some speed such as VoIP, might not all there be data to arrive at each TTI, can cause the terminal UE power consumption to increase, reduce battery service time if allow UE all carry out the blind check operation at each TTI for particular UE.
In addition, instantly industry is engaged in being in a longer relatively silent period, for example in VoIP talk business process, one side user is when speaking, usually the other user is listening, in a side the resource of UE institute blind check of then speaking, the data that send to this UE almost do not have, and the operation of blind check at this moment also will inevitably increase extra power consumption.
In addition, different with the FDD terminal, employed spreading code is shorter among the TD-SCDMA, and terminal needs and can realize joint detection algorithm, and the amount of calculation of this algorithm is bigger, and then brings more power consumptions.Therefore, if 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, 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; 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.
In addition, for complexity and the cost that reduces terminal, in TD-SCDMA, can consider that also blind check and normal HS-SCCH scheduling are not concurrent.Just, HS-PDSCH time slot and predefined blind check HS-PDSCH time slot by HS-SCCH dispatched are not among the TTI (Transmission Time Interval); If this situation, then terminal receives only the HS-PDSCH that is dispatched by HS-SCCH, and the predefined resource of blind check no longer.Can avoid terminal like this in a subframe, receive a plurality of HS-DSCH channels simultaneously.
Along with the introducing of discontinuous blind check in TD-SCDMA HS-SCCH Less process, will introduce the other problem.
At first, when terminal to sending to the data blind check of self, because decoding error and when not feeding back HS-SICH, will retransmitting; Promptly, receive the data that retransmit by the HS-SCCH dispatch terminal.And the HS-PDSCH time slot that is scheduled, because the restriction of Internet resources, the TTI that configurating terminal carries out blind check in the discontinuous blind check that can't guarantee to get along well overlaps, just, occurring being scheduled retransmits and concurrent by occurring between the pattern blind check.Like this, if the re-transmission HS-PDSCH that requires terminal to receive only to be scheduled will cause network to reduce to the utilized bandwidth that terminal sends new data by discontinuous blind check pattern, and then cause business datum in time to be sent out.
Next when the business such as VoIP of using HS-SCCH Less process are concurrent with the professional appearance of other HSDPA, also may cause the pattern of the discontinuous blind check of terminal destroyed, and then cause the VoIP business datum congested, can't in time send.
For example, be located in the VoIP business, the blind check pattern of configurating terminal is, the first blind check of per 4 subframes once, blind check is 4 times in 16 subframes, if but 2 subframes in this 4 subframe of blind check, terminal is scheduled to receive other business or receive and retransmits, then be equivalent in 16 subframes, only with 2 subframes by the new VoIP data of blind check reception, and then cause discontinuous blind check cycle of its reality be per 8 subframe blind checks once.
Especially when channel circumstance is bad, if continuous several times, a large amount of re-transmission occur, professional and other HSDPA service concurrences of VoIP perhaps appear, terminal can should receive the blind check subframe of new data, reception is by the business time-slot that HS-SCCH dispatched, and like this, the blind check cycle of the actual equivalence of terminal in discontinuous blind check process is elongated, cause new business datum in time to launch, must reduce professional real-time.
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 each execution mode of the present invention, network or communication protocol are carried out the configuration of blind check physical resource to UE in specific designated period (subframe or frame or TTI), are called the blind check pattern; If HS-DSCH that HS-SCCH dispatched is positioned at i subframe (or frame, TTI), then is called UE and is dispatched by HS-SCCH in i subframe (or frame, TTI); In HS-SCCH Less process, by the HS-SCCH scheduling, send data retransmission, be called as the HS-SCCH retransfer scheduling.
Need to prove, among the present invention, the blind detection resource of a blind check pattern, and relations such as " comprising " between the blind detection resource of another one blind check pattern, " not comprising ", " overlapping ", " not overlapping ", describedly be, when these two blind check patterns are used (be included in send on the blind detection resource and to the reception of blind detection resource) simultaneously, the situation that concerns between the blind detection resource that two blind check patterns are disposed.
First embodiment of the invention relates to blind check data transmission method for uplink in a kind of TD-SCDMA system, and its flow process as shown in Figure 4.
In step 401, network is to the information of UE configuration blind check.If certain configuration information has had defined in communication protocol, promptly the UE side is known, and then network can not send this parameter.These information include but not limited to:
The configuration information of the first blind check pattern;
The configuration information of the second blind check pattern;
Subscriber equipment enters the configuration information that improves blind check frequency state condition.
The configuration information of the first blind check pattern comprises: blind check cycle of the first blind check pattern and carry out the designated period (subframe, frame, TTI) of blind check in this in blind check cycle.
The configuration information of the second blind check pattern comprises:
The sign of the duration of the second blind check pattern and the continuous blind check of expression; Perhaps,
Blind check cycle of the duration of the second blind check pattern, the second blind check pattern and carry out the designated period (subframe, frame, TTI) of blind check in this in blind check cycle.
After this enter step 402, network sends the data that need blind check by the first blind check pattern to UE, and wherein blind detection resource is that unit is discontinuously arranged with the designated period in the first blind check pattern, and designated period is subframe or frame or TTI.
Need illustrate that the present invention's said " sending data by certain blind check pattern " is meant that the blind detection resource that can utilize in this blind check pattern sends data, is not meant and must all blind detection resource all sends data in this blind check pattern.When network does not have data, can not send in some blind detection resource.
After this enter step 403, network is judged current not first predetermined condition, if satisfy then enter step 404, sends the next data that need blind check by the first blind check pattern to UE otherwise get back to step 402.
First predetermined condition is one of following or its combination in the present embodiment:
Satisfy the condition that improves the blind check frequency state that enters that is pre-configured among the UE;
Network sends the signaling that expression requires to improve the blind check frequency to UE, by the communication protocol regulation, need not feedback acknowledgment information, or when needing feedback acknowledgment information and having returned confirmation.
Above-mentionedly enter that to improve blind check frequency state condition can be one of following:
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, p 〉=1 wherein, q≤p; Perhaps,
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, and network has been received the feedback of this UE by the HS-SICH transmission during last scheduling the in q time, p 〉=1 wherein, q≤p.
These enter raising blind check frequency state condition and are used to judge whether that the blind detection resource that is scheduled recently is too much, if, then can judge and can not get enough bandwidth probably by the data that the blind check mode sends, can enter the state that improves the blind check frequency this moment, to alleviate or to prevent that the phenomenon of delayed delivery from appearring in business datum.
In step 404, network sends the data that need blind check by the second blind check pattern to UE, and wherein the blind detection resource in the second blind check pattern comprises the blind detection resource outside the first blind check pattern.
Because utilized the blind detection resource outside the first default blind check pattern to send under given conditions, can alleviate or avoid business datum delayed delivery to occur because of discontinuous blind check.
Blind detection resource in the present embodiment in the second blind check pattern comprises all blind detection resource in the first blind check pattern.The second blind check pattern can be made up of the first blind check pattern and additional blind check pattern, and wherein the blind detection resource in this additional blind check pattern comprises the blind detection resource outside the first blind check pattern.
One of can be in the following manner or its combination realize sending the data that need blind check to UE by the second blind check pattern:
Send the data that need blind check to UE by additional blind check pattern;
Send the data that need blind check to UE by the first blind check pattern.
Be appreciated that, reasons such as fluctuation because of data volume, in the data volume that need send by blind detection resource more after a little while, send out data although be by the second blind check pattern, but and do not require in all blind detection resource of the second blind check pattern and all send out data, still can only in the blind detection resource of the first blind check pattern that the second blind check pattern is comprised, send out.Certainly, the UE of receiving terminal does not also know that network only sends out in the blind detection resource of the first blind check pattern, and UE still will carry out blind check by the second blind check pattern.
In addition, be appreciated that the second blind check pattern also can can't help to add the blind check pattern and the first blind check pattern combines, but the blind check pattern of an independent definition.The second blind check pattern also can not exclusively comprise the blind detection resource in the first blind check pattern, and the blind detection resource in the second blind check pattern can have common factor with the blind detection resource in the first blind check pattern, also can not occur simultaneously.
Enter step 405 after drawing, sending under the state of the data that need blind check to UE by the second blind check pattern, network is judged current whether second predetermined condition, if then enter step 402, revert to by the first blind check pattern and send the data that need blind check to UE, otherwise get back to step 404, continue to send the next data that need blind check to UE by the second blind check pattern.
After a period of time, the overstocked situation of business datum should can be eased at the state continuance that utilizes extra blind detection resource to send data, and in time return back to the first default blind check pattern this moment, can avoid the too much power consumption of terminal.
Second predetermined condition is one of following or its combination in the present embodiment:
After the second blind check pattern finishes;
Network has sent the signaling of low blind check frequency of begging to surrender of indicating to UE, and receives the feedback of this UE.
The duration of the second blind check pattern is a limited predetermined value in the present embodiment, and network and UE can just as one man withdraw from the second blind check pattern under the situation of intercorrelation signaling not like this, have saved valuable interface-free resources.The duration that is appreciated that the second blind check pattern also can be a unlimited value, withdraws from the second blind check pattern simultaneously by signaling harmonizing network and UE.
Second embodiment of the invention relates to blind check method of reseptance in a kind of TD-SCDMA system, and its flow process as shown in Figure 5.
In step 501, UE receives the configuration information of network, if network does not send certain configuration information, but communication protocol has had defined to cause known this information of UE, and then for this configuration, UE adopts the communication protocol setting.These configuration informations comprise but are not limited to:
The configuration information of the first blind check pattern;
The configuration information of the second blind check pattern;
Subscriber equipment enters the configuration information that improves blind check frequency state condition.
The configuration information of the first blind check pattern comprises: blind check cycle of the first blind check pattern and carry out the designated period (subframe, frame, TTI) of blind check in this in blind check cycle.
The configuration information of the second blind check pattern comprises: one of the duration of the second blind check pattern and following information:
The sign of representing continuous blind check, perhaps, blind check cycle of the second blind check pattern and carry out the designated period (subframe, frame, TTI) of blind check in this in blind check cycle.
If the sign of the continuous blind check of expression is arranged in the configuration information of the second blind check pattern, illustrate that then the second blind check pattern is in each designated period (subframe, frame, TTI) blind check continuously, unless this designated period is scheduled.With the second blind check style configuration is the continuous blind check that a specified time is arranged, and can maximally utilise all possible blind detection resource, thereby may guarantee professional real-time with maximum.
Be appreciated that the duration that the second blind check pattern also can be set, the duration of second blind check pattern this moment is exactly a unlimited value, can withdraw from the second blind check pattern simultaneously by signaling harmonizing network and UE.
After this enter step 502, UE carries out blind check by the first blind check pattern to the data of coming automatic network, and wherein blind detection resource is that unit is discontinuously arranged with the designated period in the first blind check pattern, and designated period can be subframe or frame or TTI.
Be appreciated that the present invention alleged " carrying out blind check by certain blind check pattern " is meant and will will carries out blind check to blind detection resource all in this blind check pattern that these blind detection resource may be carried data, also may not carry data.
After this enter step 503, UE judges current the 3rd predetermined condition that whether satisfies, if then enter step 504, carries out blind check otherwise get back to step 502 pair next data.
The 3rd predetermined condition can be one of following or its combination:
Satisfy the condition that improves the blind check frequency state that enters that is pre-configured among the UE;
UE receives the expression of automatic network to require to improve the signaling of blind check frequency, by the communication protocol regulation, need not feedback acknowledgment information, or when needing feedback acknowledgment information and having returned confirmation.
Enter wherein that to improve blind check frequency state condition can be one of following:
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, p 〉=1 wherein, q≤p; Perhaps,
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, and this UE has sent feedback by HS-SICH during the last scheduling in q time, p 〉=1 wherein, q≤p.
These enter raising blind check frequency state condition and can be used for judging whether that the blind detection resource that is scheduled recently is too much, if, then can judge and can not get enough bandwidth probably by the data that the blind check mode sends, can enter the state that improves the blind check frequency this moment, to alleviate or to prevent that the phenomenon of delayed delivery from appearring in business datum.
In step 504, UE carries out blind check by the second blind check pattern to the data of coming automatic network, and wherein the blind detection resource in the second blind check pattern comprises the blind detection resource outside the first blind check pattern.Because utilized the blind detection resource outside the first default blind check pattern to send under given conditions, can alleviate or avoid business datum delayed delivery to occur because of discontinuous blind check.
Blind detection resource in the present embodiment in the second blind check pattern comprises all blind detection resource in the first blind check pattern.The second blind check pattern can be made up of the first blind check pattern and additional blind check pattern, and wherein the blind detection resource in this additional blind check pattern comprises the blind detection resource outside the first blind check pattern.Certainly, in other example of the present invention, the second blind check pattern also can be the blind check pattern of independent definition.
After this enter step 505, by the second blind check pattern data of coming automatic network are being carried out under the state of blind check, UE judges and currently whether satisfies the 4th predetermined condition, if satisfy, then enter step 502, revert to by the first blind check pattern data of coming automatic network are carried out blind check; If do not satisfy, then get back to step 504, continue the next data of coming automatic network to be carried out blind check by the second blind check pattern.
The 4th predetermined condition can be one of following or its combination:
After the second blind check pattern finishes;
UE receives the signaling of low blind check frequency of begging to surrender of indicating of automatic network, and feeds back.
After a period of time, the overstocked situation of business datum should can be eased at the state continuance that utilizes extra blind detection resource to send data, and in time return back to the first default blind check pattern this moment, can avoid the too much power consumption of terminal.
Third embodiment of the invention relates to blind check method of reseptance in a kind of TD-SCDMA system.The 3rd execution mode and second execution mode are basic identical, and difference mainly is: the blind detection resource in second execution mode in the second blind check pattern comprises all blind detection resource in the first blind check pattern; And in the 3rd execution mode, the second blind check pattern not exclusively comprises all blind detection resource in the first blind check pattern.
In the 3rd execution mode, when satisfying the 3rd predetermined condition, at UE when the data of coming automatic network being carried out blind check by the second blind check pattern, if the blind detection resource that is not covered by the second blind check pattern in the first blind check pattern is not dispatched by HS-SCCH, then the blind detection resource that is not covered by the second blind check pattern in these first blind check patterns is also carried out blind check.Even UE can not miss the data that issue by the first blind check pattern because reasons such as interference are not in time received the signaling of the recovery first blind check pattern that network is sent out yet like this, reduced the probability of retransfer scheduling, improved the integrated communication quality.
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.
Fig. 6 is the dynamic blind check process of the HS-SCCH Less example in the TD-HSDPA of the present invention system.In the figure, each grid is represented a HS-PDSCH predefine resource in the subframe.The oblique line grid is represented the predefine resource in the subframe of the first blind check style configuration, and when promptly not dispatched by HS-SCCH, UE should carry out the part of blind check.The grid line grid is represented the predefine resource in the subframe of the first blind check style configuration, but on this subframe, UE is dispatched by HS-SCCH.The horizontal line grid is represented the predefine resource in the subframe in the second blind check style configuration; But when the resource of the resource of this class and oblique line (or grid line) grid representative is positioned at same subframe, only marked oblique line (or grid line) grid mark.On behalf of UE, blank grid of filling can not carry out the blind check operation on pairing subframe.
The configuration information of the first blind check pattern of UE is: the blind check cycle is 4 subframes, preceding 2 the subframe blind checks in the cycle, and back 2 subframes can not blind check; Be that UE should be at n, n+1, n+4, n+5 ... the subframe blind check.
The configuration information of the second blind check pattern of UE is: in the time span of 4 subframes, and the continuous blind check of UE.
Entering the condition that improves the blind check frequency state is: on the subframe that p=1 the first blind check pattern disposed, UE has to be dispatched by HS-SCCH for q=1 time, and the last scheduling in q=1 time has sent the HS-SICH that feeds back.
In Fig. 6 example, under normal circumstances, network is only at n, n+1, n+4, n+5 ... subframe sends the blind check data to UE, certainly, if there are not data to send to this UE, then can be on these predefine resources, to other also the terminal of this part resource of blind check send data; And UE also can only carry out blind check in these subframes.
In the n+4 subframe, UE is dispatched by HS-SCCH.Be scheduled on 1 subframe for needing only on the first blind check pattern because enter the condition of high frequency blind check, UE is after sending HS-SICH, and continuous T=4 subframes are carried out continuous blind check.Therefore, UE is scheduled in the n+4 subframe, and correspondence has been fed back HS-SICH in the n+6 subframe.Because HS-SICH belongs to up channel, before the blind check operation of same subframe, therefore, UE should begin in the n+6 subframe, to the n+9 subframe, and continuous 4 subframe blind checks.
In the n+5 subframe, UE is dispatched by HS-SCCH once more, analogizes according to above-mentioned, and UE should begin in the n+7 subframe after the n+7 subframe has been fed back HS-SICH, to the n+10 subframe, and continuous 4 subframe blind checks.
Therefore, to the n+10 subframe, because do not dispatched by HS-SCCH, UE carries out blind check continuously from n+6.Wherein, in n+8, n+9 subframe, be the first blind check subframe that pattern disposes and the overlapping subframe of the second blind check subframe that pattern disposes.
To the n+11 subframe, because the subframe that the second blind check style configuration information during high blind check frequency is disposed, promptly from n+6 to the n+10 subframe, when not dispatched, all by blind check by HS-SCCH, then the n+11 subframe no longer belongs to the subframe that the second blind check pattern is disposed, simultaneously, the subframe that it neither the first blind check pattern be disposed, therefore, in the n+11 subframe, UE can not carry out blind check.
From the n+12 subframe, UE adjusts to the blind check cycle and the frequency of the normal first blind check pattern.
From Fig. 6 as seen, at n+4, n+5, UE is dispatched by HS-SCCH, receives data retransmission, perhaps other business, and then originally can be used to transmit VoIP, newly to arrive the bandwidth of data occupied.But owing to introduced high frequency blind check configuration (i.e. the second blind check pattern), UE has carried out 3 blind checks respectively at n+6, n+7, n+10 than normal condition more; And owing to fed back n+4, pairing HS-SICH when the n+5 subframe is scheduled, that is network is if correctly receive these feedbacks, then can confirm according to this, UE has entered high-frequency blind check state, and can be in n+6, n+7, n+10 subframe, transmission may be in n+4, the blocked new VoIP data that arrive of n+5 subframe.After the n+11 subframe, UE has withdrawed from high frequency blind check state again automatically.
As seen, introduced after the dynamic blind check process, can not occur because of the blind check subframe is scheduled, promptly the first blind check pattern is broken, and stops up and cause newly arriving data; Avoid again simultaneously UE in order in time to receive data continuous firing in high frequency blind check operation.Under the prerequisite that guarantees professional normal transmitting-receiving, avoided too much power consumption.
Four embodiment of the invention relates to the network equipment of a kind of TD-SCDMA system, and this equipment comprises:
The blind check transmitting element is used to send data, sends the data that need blind check by the first blind check pattern to UE under the default situation, and wherein blind detection resource is that unit is discontinuously arranged with the designated period in the first blind check pattern, and designated period is subframe or frame or TTI.
Control unit, be used to judge whether first predetermined condition, if satisfy then indicate the blind check transmitting element to send the data of needs blind check to UE by the second blind check pattern, wherein the blind detection resource in the second blind check pattern comprises the blind detection resource outside the first blind check pattern, also be used for sending under the state of the data that need blind check to UE by the second blind check pattern, judge whether second predetermined condition, send the data that need blind check to UE if then indicate the blind check transmitting element to revert to by the first blind check pattern.
First predetermined condition is one of following or its combination:
Satisfy the condition that improves the blind check frequency state that enters that is pre-configured among the UE.
Network sends the signaling that expression requires to improve the blind check frequency to UE.
Enter that to improve blind check frequency state condition be one of following:
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, p 〉=1 wherein, q≤p; Perhaps,
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, and network has been received the feedback of this UE by the HS-SICH transmission during last scheduling the in q time, p 〉=1 wherein, q≤p.
The duration of the second blind check pattern is a limited predetermined value.
Second predetermined condition is one of following or its combination:
After the second blind check pattern finishes;
Network has sent the signaling of low blind check frequency of begging to surrender of indicating to UE, and receives the feedback of this UE.
Blind detection resource in the second blind check pattern comprises all blind detection resource in the first blind check pattern.Wherein,
The second blind check pattern is made up of the first blind check pattern and additional blind check pattern, and wherein the blind detection resource in this additional blind check pattern comprises the blind detection resource outside the first blind check pattern, and perhaps, the second blind check pattern is the blind check pattern of independent definition.
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.
Fifth embodiment of the invention relates to the UE of a kind of TD-SCDMA system, and this UE comprises:
The blind check receiving element, be used for the data of coming automatic network are carried out blind check, by the first blind check pattern data of coming automatic network are carried out blind check under the default setting, wherein blind detection resource is that unit is discontinuously arranged with the designated period in the first blind check pattern, and designated period is subframe or frame or TTI.
Control unit, be used to judge whether satisfy the 3rd predetermined condition, if satisfy then indicate the blind check receiving element by the second blind check pattern data of coming automatic network to be carried out blind check, wherein the blind detection resource in the second blind check pattern comprises the blind detection resource outside the first blind check pattern; Also be used for, the data of coming automatic network carried out under the state of blind check, judge whether to satisfy the 4th predetermined condition, if satisfy then indicate the blind check receiving element to revert to the data of coming automatic network are carried out blind check by the first blind check pattern by the second blind check pattern.
The 3rd predetermined condition is one of following or its combination:
Satisfy the condition that improves the blind check frequency state that enters that is pre-configured among the UE;
UE receives the expression of automatic network to require to improve the signaling of blind check frequency.
Enter that to improve blind check frequency state condition be one of following:
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, p 〉=1 wherein, q≤p; Perhaps,
Disposing on the designated period of blind detection resource in p the first blind check pattern continuously, UE has to be dispatched by HS-SCCH for q time, and this UE has sent feedback by HS-SICH during the last scheduling in q time, p 〉=1 wherein, q≤p.
The 4th predetermined condition is one of following or its combination:
After the second blind check pattern finishes;
UE receives the signaling of low blind check frequency of begging to surrender of indicating of automatic network, and feeds back.
The second or the 3rd execution mode is and the corresponding method execution mode of present embodiment, present embodiment can with the enforcement of working in coordination of the second or the 3rd execution mode.The correlation technique details of mentioning in the second or the 3rd 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 the second or the 3rd execution mode.
Need to prove, each unit of mentioning in the present device 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.