CN102065562A - Scheduling method, equipment and system - Google Patents
Scheduling method, equipment and system Download PDFInfo
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Abstract
The invention discloses scheduling method, equipment and system, belonging to the field of communication. The method comprises the following steps of: transmitting a state instruction to high speed downlink packet access (HSDPA) user equipment; judging whether the state of the user equipment is changed or not; and carrying out downlink scheduling on the user equipment according to the preset scheduling strategy before the state of the user equipment is changed, wherein the preset scheduling strategy ensures that the downlink scheduling behavior is coincident with the state of the user equipment. The equipment comprises a transmitting module, a judging module and a scheduling module. The system comprises scheduling equipment and HSDPA user equipment. In the invention, downlink scheduling is carried out on the user equipment according to the preset scheduling strategy in the time interval from the transmission of the state instruction to the state change of the user equipment, the scheduling behaviors of an equipment side and a UE side after a base station transmits the state instruction are defined so that the downlink scheduling behavior of the scheduling equipment is coincident with the state of the UE, thereby improving the performance of the system.
Description
Technical field
The present invention relates to the communications field, particularly a kind of dispatching method, equipment and system.
Background technology
In radio communication, HS-SCCH (High Speed Shared Control Channel can be passed through in the base station, High-Speed Shared Control Channel) and HS-PDSCH (High Speed Physical Downlink Shared Channel, high-speed physical downlink shared channel (HS-PDSCH)) to HSDPA (High Speed Downlink Packet Access, the high speed downlink packet access) user dispatches, comprise more special DC HSDPA (Dual-Carrier High Speed Downlink Packet Access, two carrier wave high speed downlink packet insert) user among this HSDPA user again.
When dispatching at DC HSDPA user:
After DC HSDPA user inserts the sub-district of supporting DC HSDPA technology, can receive simultaneously from the information of the HS-SCCH of two alien-frequency districts and the data of HS-PDSCH, one in these two alien-frequency districts is the main plot, by the main carrier transmission of data signals, another is auxilliary sub-district, by auxilliary carrier transmission data-signal.Simultaneously, DC HSDPA user is by up HS-DPCCH (High Speed Dedicated Physical Control Channel, Dedicated Physical Control Channel) with ACK (Acknowledgement, confirmation) and CQI (Channel Quality Indicator, the channel quality indication) information is returned the base station of feeding, finish physical layer HARQ (Hybrid Automatic Repeat Request mixes automatic repeat requests) function.
The UE (User Equipment, subscriber equipment) of support DC HSDPA technology need monitor maximum 6 HS-SCCH from two alien-frequency districts simultaneously, and the power consumption of UE is bigger; In addition, on the basis of DC HSDPA technology, introduce MIMO (Multiple Input Multiple Output, multiple-input, multiple-output) technology again after, up HS-DPCCH can take more ascending resource, has increased the load of base station side.
At the problems referred to above, when the load lower or base station of the volume of transmitted data of UE reaches max threshold, can issue deexcitation instruction by HS-SCCH is SC HSDPA (Single-Carrier High Speed Downlink Packet Access with the status modifier of UE, the single carrier high speed downlink packet inserts) state, promptly auxilliary carrier wave deexcitation, only keep the transmission that main carrier carries out data-signal, reach the purpose that reduces UE power consumption and reduce the base station load.After the auxilliary carrier wave deexcitation, can also issue activation instruction by HS-SCCH UE is activated the state into DC HSDPA again, promptly auxilliary carrier wave activates, and improves the speed of UE.
When dispatching at HSDPA user:
HSDPA user supports HS-SCCH less operation (no HS-SCCH follows) pattern, the basic principle of HS-SCCHless operation is to reduce the transmission of following channel HS-SCCH of HSDPA low speed business, promptly when HS-PDSCH new biography data, do not need to follow HS-SCCH, need follow the HS-SCCH new model of HS-SCCH during data retransmission.
When better, the descending transmission retransmission rate of wireless environment is low, under HS-SCCH less operation pattern, owing to do not need to follow HS-SCCH during the new biography data, HS-SCCH power can be saved in the base station, for weak overlay area, because the HS-SCCH channel may consume the cell power more than 10%,, enlarge cell coverage area so can promote the throughput of weak overlay area after the HS-SCCH power-saving gets off; Simultaneously, reduce the transmission of HS-SCCH and can save the HS-SCCH code source, can be thereby descending at the more UE of the interior scheduling of a TTI (Transmission Time Interval, Transmission Time Interval), raising downlink capacity; But, because the UE number of descending scheduling increases, up HS-DPCCH feedback becomes many, so ascending load can have increase slightly; Concerning UE, after the use HS-SCCH less operation pattern, UE need carry out blind Detecting to the HS-PDSCH channel, therefore needs the original more power of consumption rate, and power consumption is big.
At present, can issue deexcitation instruction by HS-SCCH is non-HS-SCCH lessoperation pattern with the status modifier of UE, reaches the purpose that reduces UE power consumption and reduce the base station ascending load; Equally, also can issue activation instruction the state of UE is activated the pattern into HS-SCCH less operation again, reach the purpose that promotes cell capacity by HS-SCCH.
In sum, the auxilliary carrier wave of DC HSDPA user activate deexcitation technology and HSDPA user HS-SCCH lessoperation activate the deexcitation technology all can be under the situation that does not increase the space interface signaling expense realization UE status modifier of fast and flexible.
In realizing process of the present invention, the inventor finds that there is following shortcoming at least in prior art:
No matter be that the auxilliary carrier wave of DC HSDPA user activates the deexcitation technology, or HSDPA user HS-SCCH lessoperation activates the deexcitation technology, after the base station sent the instruction of activation or deexcitation by HS-SCCH, the state of UE can not change immediately.Send instructions to from the base station in the interval during this period of time of UE state change, the behavior of base station side and UE side may be inconsistent, in such cases, occurs the situation of lost data frames easily, and then make the behavior of base station side and the state of UE the inconsistent of longer time occur, cause performance loss.
Summary of the invention
For clear and definite base station send to activate by HS-SCCH or the instruction of deexcitation after the behavior of base station side and UE side, the scheduling behavior of base station side is consistent with the state of UE, and the performance of raising system, the embodiment of the invention provides a kind of dispatching method, equipment and system.
Described technical scheme is as follows:
On the one hand, provide a kind of dispatching method, described method comprises:
To the instruction of HSDPA UE transmit status, described status command comprises activation instruction or deexcitation instruction;
Whether the state of judging described UE changes;
Before the state of described UE changes, carry out descending scheduling according to default scheduling strategy at described UE, described default scheduling strategy guarantees that the descending scheduling behavior is consistent with the state of described UE.
On the other hand, provide a kind of controlling equipment, described equipment comprises:
Sending module is used for to the instruction of HSDPA UE transmit status, and described status command comprises activation instruction or deexcitation instruction;
Judge module is used at described sending module judging whether the state of described UE changes after the instruction of HSDPA UE transmit status;
Scheduler module was used for before described judge module judges that the state of described UE changes, and carried out descending scheduling at described UE according to default scheduling strategy, and described default scheduling strategy guarantees that the descending scheduling behavior is consistent with the state of described UE.
On the one hand, also provide a kind of dispatching patcher again, described dispatching patcher comprises above-mentioned controlling equipment, and the HSDPA UE that communicates by letter with described controlling equipment.
The beneficial effect of the technical scheme that the embodiment of the invention provides is:
By instruct the state of UE to change in the time interval before from transmit status, carry out descending scheduling according to default scheduling strategy at this UE, clear and definite base station by HS-SCCH send activate or the instruction of deexcitation after the behavior of controlling equipment side and UE side, the descending scheduling behavior of controlling equipment is consistent with the state of UE, has improved the performance of system.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the dispatching method flow chart that the embodiment of the invention one provides;
Fig. 2 is the dispatching method flow chart that the embodiment of the invention two provides;
Fig. 3 is first kind of concrete dispatch state schematic diagram that the embodiment of the invention two and three provides;
Fig. 4 is second kind of concrete dispatch state schematic diagram that the embodiment of the invention two and three provides;
Fig. 5 is the dispatching method flow chart that the embodiment of the invention three provides;
Fig. 6 is first kind of controlling equipment structural representation that the embodiment of the invention four provides;
Fig. 7 is second kind of controlling equipment structural representation that the embodiment of the invention four provides;
Fig. 8 is the third controlling equipment structural representation that the embodiment of the invention four provides;
Fig. 9 is the dispatching patcher structural representation that the embodiment of the invention five provides.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment one
The embodiment of the invention provides a kind of dispatching method, and referring to Fig. 1, method flow is specific as follows:
101: to the instruction of HSDPA UE transmit status, this status command comprises activation instruction or deexcitation instruction;
102: whether the state of judging this UE changes;
103: before the state of this UE changes, carry out descending scheduling at this UE according to default scheduling strategy.
Wherein, this default scheduling strategy guarantees that the descending scheduling behavior is consistent with the state of this UE.
The method that the embodiment of the invention provides, by instruct the state of UE to change in the time interval before from transmit status, carry out descending scheduling according to default scheduling strategy at this UE, clear and definite base station by HS-SCCH send activate or the instruction of deexcitation after the behavior of controlling equipment side and UE side, the descending scheduling behavior of controlling equipment is consistent with the state of UE, has improved the performance of system.
Embodiment two
The embodiment of the invention provides a kind of dispatching method, this method is except being applicable to WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) and TDSCDMA (Time Division-Synchronous Code Division Multiple Access, the CDMA (Code Division Multiple Access) that time-division is synchronous) outside the system, can also be applied to other communication systems.The embodiment of the invention is that example describes with the base station among the WCDMA according to R9 release protocol scheduling DC HSDPA user only, but is not limited to this.
Referring to Fig. 2, method flow is specific as follows:
201: to the instruction of DC HSDPA UE transmit status, this status command comprises auxilliary carrier wave activation instruction or auxilliary carrier wave deexcitation instruction;
Wherein,, that is to say that when UE was DC HSDPA subscriber equipment, this status command specifically comprised auxilliary carrier wave activation instruction or auxilliary carrier wave deexcitation instruction because the application scenarios of present embodiment is at the DC HSDPA user in the R9 release protocol of WCDMA.
Particularly, can be the network equipment,, instruct the auxilliary carrier wave of activation or deexcitation UE such as the base station to the UE transmit status by HS-SCCH.In the WCDMA system,, be the SC HSDPA state of UE will be activated to be DC HSDPA state when when the carrier wave activation instruction is assisted in the UE transmission; When the auxilliary carrier wave deexcitation of UE transmission is instructed, be to be SC HSDPA state with the DC HSDPA state deexcitation of UE.Be understandable that in process, status command only can be a kind of in auxilliary carrier wave activation instruction or the auxilliary carrier wave deexcitation instruction, and follow-up flow process is similar substantially.In the description of the embodiment of the invention, only be easy in order to narrate with both purpose of description of putting together.
202: whether the state of judging this UE changes, and if not, then execution in step 203, if then execution in step 204;
Wherein, whether the state of judging this UE changes, be specifically as follows according to the affirmation information that whether gets access to this UE and judge whether the state of this UE changes, (do not get access to feedback information if get access to the feedback information of this UE, just certainly can not get access to confirmation yet), though or the feedback information that gets access to, this feedback information is not ACK (Acknowledgement, confirmation), the state of then judging this UE does not change.
Particularly, at this step, at first can obtain the feedback information of this UE by up HS-DPCCH, this feedback information may be ACK, NACK (Negative Acknowledgement, deny information) and DTX (Discontinuous Transmission, discontinuous transmission) in a kind of.Feedback information can be stored in the base station and pass through in the pairing uplink frame of frame of HS-SCCH transmit status instruction.If do not get access to feedback information, judge that then the auxilliary Carrier State of this UE does not change; If the feedback information that gets access to is NACK or DTX (promptly not being ACK), judge also that then the auxilliary Carrier State of this UE does not change; If get access to feedback information is ACK, judges that then the auxilliary Carrier State of this UE changes.
203: if the state of this UE does not change, before the state of this UE changes, carry out descending scheduling at this UE according to default scheduling strategy, after the state of this UE changes, execution in step 204;
Wherein, if the state of this UE does not change, then before the state of this UE changes, carry out descending scheduling at this UE according to default scheduling strategy, this default scheduling strategy guarantees that the scheduling behavior on auxilliary carrier wave is consistent with the auxilliary Carrier State of this UE.Default scheduling strategy herein is specially:
Do not carry out descending scheduling at this UE; Or,
Carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE; Or,
Only carry out descending scheduling at this UE at main carrier.
Particularly, do not carry out the descending scheduling at this UE, promptly from instructing to the UE transmit status in the time interval that the auxilliary Carrier State of UE changes, base station side does not issue the data of any scheduling to this UE by main carrier and auxilliary carrier wave pin.Simultaneously, receive the uplink frame that this UE sends.
Carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE, promptly from instructing to the UE transmit status in the time interval that the auxilliary Carrier State of UE changes, base station side issues data according to original scheduling mode before this UE transmit status instruction to this UE.Simultaneously, receive the uplink frame that this UE sends.
Only carry out descending scheduling at this UE at main carrier, promptly from instructing to the UE transmit status in the time interval that the auxilliary Carrier State of UE changes, base station side is only dispatched this UE by main carrier, issues data to this UE.Simultaneously, receive the uplink frame that this UE sends.
In actual applications, can select in above-mentioned three kinds of default scheduling strategies any one to implement.
Further, the state of UE does not change the two kinds of situations that comprise:
First kind of situation is not get access to feedback information, in such cases, continues to obtain feedback information;
Second kind of situation is to have got access to feedback information but be not ACK, in such cases, can repeat the step to the instruction of UE transmit status.
Under second kind of situation, when repeating after the number of times of the step of UE transmit status instruction surpasses maximum retransmission, can carry out descending scheduling according to original scheduling mode before this UE transmit status instruction at this UE.Wherein, the embodiment of the invention does not specifically limit maximum retransmission, can set according to actual conditions, as being made as 4 times.
In a word, the feedback information that no matter does not get access to feedback information or get access to is NACK or DTX, or repeat in the middle of the process of UE transmit status instruction, the state of this UE does not all change, before the state of this UE changes, carry out descending scheduling according to default scheduling strategy at this UE, and after the state of this UE changes, execution in step 204.
204: if the state of this UE changes, then carry out descending scheduling at this UE according to the state of status command appointment, flow process finishes;
Particularly, change in case determine the state of UE, the base station is then activated or deactivation status according to the auxilliary carrier wave of status command appointment, carries out the descending scheduling at this UE.Such as, if the auxilliary carrier wave after the UE state changes is a state of activation, then carry out descending scheduling at this UE by main carrier and auxilliary carrier wave; If the auxilliary carrier wave after the UE state changes is a deactivation status, then carry out descending scheduling at this UE by main carrier.
On the other hand, after the state of UE changes, carry out up HS-DPCCH frame according to the state after changing immediately and send.
Further, the method at the embodiment of the invention provides specifically illustrates as follows:
The time that each frame takies is 1 TTI, 1TTI=3slot (time slot).The base station issues bar state instruction fully needs 1 TTI, and UE returns feedback information behind 4 TTI after status command issues fully.After at the instruction of a certain UE transmit status, whether be that ACK judges whether the state of UE changes according to the feedback information of UE, divide following two kinds of situations to handle according to timing relationship:
First kind of situation: feedback information is ACK, referring to Fig. 3:
At the 1st TTI, instruct to the UE transmit status by HS-SCCH;
In the 1st to the 5th TTI, do not get access to feedback information, during this period of time at interval in the state of UE do not change, carry out descending scheduling according to default scheduling strategy at this UE;
At the 6th TTI, the base station gets access to the feedback information of UE, obtains the corresponding frame of the status command with HS-SCCH that this feedback information sends by up HS-DPCCH from UE, and is judged as ACK;
At the 6th TTI, the base station begins auxilliary Carrier State according to the status command appointment and carries out descending scheduling at this UE;
Carrying out up HS-DPCCH frame according to the state after changing immediately after the auxilliary Carrier State of UE changes sends.
Second kind of situation: feedback information is NACK or DTX, referring to Fig. 4:
At the 1st TTI, instruct to the UE transmit status by HS-SCCH;
In the 1st to the 5th TTI, do not get access to feedback information, during this period of time at interval in the state of UE do not change, carry out descending scheduling according to default scheduling strategy at this UE;
At the 6th TTI, the base station gets access to the feedback information of UE, obtains the corresponding frame of the status command with HS-SCCH that this feedback information sends by up HS-DPCCH from UE, and is judged as NACK or DTX;
Retransmit status command at the 7th TTI to UE;
(N is the natural number more than or equal to 1 at the 6th * N+6, N represents number of retransmissions) individual TTI base station gets access to the feedback information of UE, this feedback information, is judged this feedback information by obtaining the corresponding frame of the status command with HS-SCCH of up HS-DPCCH transmission from UE:
If be judged as ACK, then handle by first kind of situation, promptly (N is the natural number more than or equal to 1 at the 6th * N+6, N represents number of retransmissions) individual TTI base station begins state according to the status command appointment and carries out descending scheduling at this UE, carries out the transmission of frame by up HS-DPCCH according to the state after changing immediately after the state of this UE changes;
If be judged as NACK or DTX, then continue to retransmit status command to UE, wherein from the 1st TTI during receive ACK (state that is UE changes) or reach maximum retransmission, all carry out descending scheduling at this UE according to default scheduling strategy.
After the number of times that retransmits surpasses maximum retransmission, carry out descending scheduling at this UE according to original scheduling mode before the instruction of UE transmit status.
The method that the embodiment of the invention provides, by instruct the state of UE to change in the time interval before from transmit status, carry out descending scheduling according to default scheduling strategy at this UE, clear and definite base station by HS-SCCH send activate or the instruction of deexcitation after the behavior of controlling equipment side and UE side, the descending scheduling behavior of controlling equipment is consistent with the state of UE, improved the performance of system, specific as follows:
When predetermined strategy for instructing from transmit status in the time interval that the state of UE changes, when not carrying out the descending scheduling at this UE, simplify system's realization, avoided the re-transmission that causes after the losing and lose of the possible inconsistent existing Frame that causes of auxilliary Carrier State of base station side scheduling and UE; Simultaneously, do not carry out at the descending scheduling of this UE during this period of time at interval in, other UE can be dispatched in the base station, have ensured the descending throughput of base station and the stability of system.Be applicable to that auxilliary carrier wave activates the deexcitation scene.
When predetermined strategy for instructing from transmit status in the time interval that the state of UE changes, when carrying out descending scheduling at this UE, make base station side remain consistent with reception with the state of UE with data dispatch on the auxilliary carrier wave at main carrier according to original scheduling mode before UE transmit status instruction; Simultaneously, carry out also having reduced the complexity that base station side is handled at the descending scheduling of this UE according to original scheduling mode before UE transmit status instruction, preferably under the situation, the data of UE side are downloaded to experience and also can not descended at channel condition.Mainly be applicable to auxilliary carrier wave deexcitation scene.
When predetermined strategy for instructing from transmit status in the time interval that the state of UE changes, only when main carrier carries out descending scheduling at this UE, no matter activate or the auxilliary carrier wave of deexcitation, UE can be not influenced by the data message of the up HS-DPCCH transmission of main carrier, be the ACK information that base station side can correctly be resolved single carrier, also can compatible ACK information of resolving the main carrier of two carrier waves, make the transmission of information not be subjected to base station side and inconsistent influence of UE side state; Simultaneously, solved and arrived after instruction issues before the UE response ACK, the subsequent treatment risk of data dispatching is surveyed in the base station, has promoted the reliability of system.Be applicable to that auxilliary carrier wave activates and the deexcitation scene.
Embodiment three
The embodiment of the invention provides a kind of dispatching method, and this method can also be applied to other communication systems except being applicable to WCDMA and TDSCDMA system.The embodiment of the invention is that example describes with the base station among the WCDMA according to R7 release protocol scheduling HSDPA user (comprising DC HSDPA user) only, but is not limited to this.
Referring to Fig. 5, method flow is specific as follows:
501: to the instruction of HSDPA UE transmit status, this status command comprises instruction of HS-SCCH less operation mode activation or HS-SCCH less operation pattern deexcitation instruction;
Wherein, because the application scenarios of present embodiment is at the HSDPA user in the R7 release protocol of WCDMA, that is to say, when UE was the HSDPA subscriber equipment, this status command specifically comprised instruction of HS-SCCH lessoperation mode activation or HS-SCCH less operation pattern deexcitation instruction.
Particularly, can be the network equipment,, instruct the HS-SCCH less operation pattern of activation or deexcitation UE such as the base station to the UE transmit status by HS-SCCH.In the WCDMA system, when sending the instruction of HS-SCCH less operation mode activation to UE, be to be HS-SCCH less operation pattern with UE from original mode activation; When sending HS-SCCH less operation pattern deexcitation instruction to UE, be to be original pattern with UE from the deexcitation of HS-SCCH less operation pattern.When the state of UE under HS-SCCH less operation pattern, UE both can receive data according to HS-SCCH lessoperation mode, also can be according to original mode, promptly non-HS-SCCH less operation mode receives data.If but the state of UE under non-HS-SCCH less operation pattern, UE receives data according to non-HS-SCCH less operation mode so.Therefore, the base station adopts HS-SCCH less operation mode or original mode can dispatch transmission for the UE that is under the HS-SCCH less operation pattern; And, adopt original mode to dispatch transmission for the UE that is under the non-HS-SCCH less operation pattern.
Be understandable that in process, status command only can be a kind of in instruction of HS-SCCH less operation mode activation or the HS-SCCH less operation pattern deexcitation instruction, and follow-up flow process is similar substantially.In the description of the embodiment of the invention, only be easy in order to narrate with both purpose of description of putting together.
502: whether the state of judging this UE changes, and if not, then execution in step 503, if then execution in step 504;
Wherein, whether the state of judging this UE changes, be specifically as follows according to the affirmation information that whether gets access to this UE and judge whether the state of this UE changes, (do not get access to feedback information if get access to the feedback information of this UE, just certainly can not get access to confirmation yet), though or the feedback information that gets access to, this feedback information is not ACK (Acknowledgement, confirmation), the state of then judging this UE does not change.
Particularly, at this step, at first can obtain the feedback information of this UE by up HS-DPCCH, this feedback information may be ACK or DTX.Feedback information can be stored in the base station and pass through in the pairing uplink frame of frame of HS-SCCH transmit status instruction.If do not get access to feedback information, judge that then the HS-SCCHless operation mode state of this UE does not change; If the feedback information that gets access to is DTX (promptly not being ACK), judge also that then the HS-SCCH less operation mode state of this UE does not change; If get access to feedback information is ACK, judges that then the HS-SCCH less operation mode state of this UE changes.
503: if the state of this UE does not change, before the state of this UE changes, carry out descending scheduling at this UE according to default scheduling strategy, after the state of this UE changes, execution in step 504;
Wherein, if the state of this UE does not change, then before the state of this UE changes, carry out descending scheduling according to default scheduling strategy at this UE, this default scheduling strategy guarantees that descending scheduling behavior is consistent with the HS-SCCH less operation pattern of this UE employing.Default scheduling strategy herein is specially:
Do not carry out descending scheduling at this UE; Or,
Carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE; Or,
Carry out descending scheduling according to non-HS-SCCH less operation pattern at this UE.
Particularly, do not carry out the descending scheduling at this UE, promptly from instructing to the UE transmit status in the time interval that the HS-SCCH less operation mode state of UE changes, base station side is no longer dispatched to send to this UE and is handled.Simultaneously, receive the uplink frame that this UE sends.
Carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE, promptly from instructing to the UE transmit status in the time interval that the HS-SCCH less operation mode state of UE changes, base station side issues data according to original scheduling mode before this UE transmit status instruction to this UE.Simultaneously, receive the uplink frame that this UE sends.
Carry out descending scheduling according to non-HS-SCCH less operation pattern at this UE, promptly from instructing to the UE transmit status in the time interval that the HS-SCCH less operation mode state of UE changes, base station side is dispatched this UE according to non-HS-SCCH less operation pattern (being original mode), issues data to this UE.Simultaneously, receive the uplink frame that this UE sends.
In actual applications, can select in above-mentioned three kinds of default scheduling strategies any one to implement.
Further, the state of UE does not change the two kinds of situations that comprise:
First kind of situation is not get access to feedback information, in such cases, continues to obtain feedback information;
Second kind of situation is to have got access to feedback information but be not ACK, in such cases, can repeat the step to the instruction of UE transmit status.
Under second kind of situation, when repeating after the number of times of the step of UE transmit status instruction surpasses maximum retransmission, can carry out descending scheduling according to original scheduling mode before this UE transmit status instruction at this UE.Wherein, the embodiment of the invention does not specifically limit maximum retransmission, can set according to actual conditions, as being made as 4 times.
In a word, the feedback information that no matter does not get access to feedback information or get access to is DTX, or repeat in the middle of the process of UE transmit status instruction, the state of this UE does not all change, before the state of this UE changes, carry out descending scheduling according to default scheduling strategy at this UE, and after the state of this UE changes, execution in step 504.
504: if the state of this UE changes, then carry out descending scheduling at this UE according to the state of status command appointment, flow process finishes;
Particularly, change in case determine the state of UE, the descending scheduling at this UE then according to the HS-SCCHless operation pattern or the non-HS-SCCH less operation pattern of status command appointment, is carried out in the base station.Such as, be HS-SCCH less operation pattern if the UE state changes the back, then can adopt HS-SCCH less operation mode or original mode to carry out descending scheduling at this UE; If it is non-HS-SCCH less operation pattern that the UE state changes the back, then adopt original mode to carry out descending scheduling at this UE.
On the other hand, after the state of UE changes, carry out up HS-DPCCH frame according to the state after changing immediately and send.
Further, the method at the embodiment of the invention provides specifically illustrates as follows:
The time that each frame takies is 1 TTI, 1TTI=3slot (time slot).The base station issues bar state instruction fully needs 1 TTI, and UE returns feedback information behind 4 TTI after status command issues fully.After at the instruction of a certain UE transmit status, whether be that ACK judges whether the state of UE changes according to the feedback information of UE, divide following two kinds of situations to handle according to timing relationship:
First kind of situation: feedback information is ACK, referring to Fig. 3:
At the 1st TTI, instruct to the UE transmit status by HS-SCCH;
In the 1st to the 5th TTI, do not get access to feedback information, during this period of time at interval in the state of UE do not change, carry out descending scheduling according to default scheduling strategy at this UE;
At the 6th TTI, the base station gets access to the feedback information of UE, obtains the corresponding frame of the status command with HS-SCCH that this feedback information sends by up HS-DPCCH from UE, and is judged as ACK;
At the 6th TTI, the base station begins HS-SCCH less operation mode state according to the status command appointment and carries out descending scheduling at this UE;
Carrying out up HS-DPCCH frame according to the state after changing immediately after the HS-SCCH less operation mode state of UE changes sends.
Second kind of situation: feedback information is DTX, referring to Fig. 4:
At the 1st TTI, instruct to the UE transmit status by HS-SCCH;
In the 1st to the 5th TTI, do not get access to feedback information, during this period of time at interval in the state of UE do not change, carry out descending scheduling according to default scheduling strategy at this UE;
At the 6th TTI, the base station gets access to the feedback information of UE, obtains the corresponding frame of the status command with HS-SCCH that this feedback information sends by up HS-DPCCH from UE, and is judged as DTX;
Retransmit status command at the 7th TTI to UE;
(N is the natural number more than or equal to 1 at the 6th * N+6, N represents number of retransmissions) individual TTI base station gets access to the feedback information of UE, this feedback information, is judged this feedback information by obtaining the corresponding frame of the status command with HS-SCCH of up HS-DPCCH transmission from UE:
If be judged as ACK, then handle by first kind of situation, promptly (N is the natural number more than or equal to 1 at the 6th * N+6, N represents number of retransmissions) individual TTI base station begins state according to the status command appointment and carries out descending scheduling at this UE, carries out the transmission of frame by up HS-DPCCH according to the state after changing immediately after the state of this UE changes;
If be judged as DTX, then continue to retransmit status command to UE, wherein from the 1st TTI during receive ACK (state that is UE changes) or reach maximum retransmission, all carry out descending scheduling at this UE according to default scheduling strategy.
After the number of times that retransmits surpasses maximum retransmission, carry out descending scheduling at this UE according to original scheduling mode before the instruction of UE transmit status.
The method that the embodiment of the invention provides, by instruct the state of UE to change in the time interval before from transmit status, carry out descending scheduling according to default scheduling strategy at this UE, clear and definite base station by HS-SCCH send activate or the instruction of deexcitation after the behavior of controlling equipment side and UE side, the descending scheduling behavior of controlling equipment is consistent with the state of UE, improved the performance of system, specific as follows:
When predetermined strategy for instructing from transmit status in the time interval that the state of UE changes, when not carrying out the descending scheduling at this UE, simplified system's realization, it is consistent that the data dispatch that makes base station side and reception and UE state remain, to such an extent as to the losing of having avoided occurring of Frame causes high-rise the re-transmission; Simultaneously, base station side can be dispatched other UE in the time period of not dispatching this UE, improves the base station down throughput, has promoted systematic function.
When predetermined strategy for instructing from transmit status in the time interval that the state of UE changes, when carrying out descending scheduling at this UE, reduced the complexity of base station side processing as far as possible according to original scheduling mode before the instruction of UE transmit status; Before UE returns ACK, change is not made in the scheduling of UE, preferably under the situation, the throughput of sub-district and power system capacity can not descend at channel condition.
When predetermined strategy for instructing from transmit status in the time interval that the state of UE changes, when carrying out descending scheduling at this UE according to non-HS-SCCH less operation pattern, no matter the UE state is to non-HS-SCCH less operation pattern from HS-SCCH less operation mode switch, still be to HS-SCCH less operation pattern from non-HS-SCCH less operation mode switch, UE can carry out the Data Receiving of non-HS-SCCH less operation mode (being original mode), has avoided adopting HS-SCCH less operation mode to dispatch to be sent in like this and has activated the frame losing that may occur in the deactivation process.
Embodiment four
The embodiment of the invention provides a kind of controlling equipment, and this equipment can also be applied to other communication systems except being applicable to WCDMA and TDSCDMA system.The embodiment of the invention is that example describes with the base station among the WCDMA as controlling equipment scheduling UE only, but is not limited to this.In the WCDMA system,,, be the SCHSDPA state of UE will be activated to be DC HSDPA state when when the carrier wave activation instruction is assisted in the UE transmission at the DC HSDPA user in the R9 release protocol; When the auxilliary carrier wave deexcitation of UE transmission is instructed, be to be SC HSDPA state with the DC HSDPA state deexcitation of UE; At the HSDPA user in the R7 release protocol, when sending the instruction of HS-SCCH less operation mode activation to UE, be to be HS-SCCH less operation pattern with UE from original mode activation; When sending HS-SCCH less operation pattern deexcitation instruction to UE, be to be original pattern with UE from the deexcitation of HS-SCCH less operation pattern.
Referring to Fig. 6, this equipment comprises:
Sending module 601 is used for to the instruction of HSDPA UE transmit status, and this status command comprises activation instruction or deexcitation instruction;
Wherein, when this UE was DC HSDPA subscriber equipment, the status command that sending module 601 sends to this UE specifically comprised auxilliary carrier wave activation instruction or auxilliary carrier wave deexcitation instruction.When the carrier wave activation instruction is assisted in the UE transmission, be the SC HSDPA state of UE will be activated to be DC HSDPA state; When the auxilliary carrier wave deexcitation of UE transmission is instructed, be to be SC HSDPA state with the DC HSDPA state deexcitation of UE.
Correspondingly, should guarantee that the scheduling behavior on auxilliary carrier wave was consistent with the auxilliary Carrier State of this UE by default scheduling strategy, scheduler module 603 carry out at the concrete mode of the descending scheduling of this UE according to the scheduling strategy of presetting be: do not carry out descending scheduling at this UE; Or, carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE; Or, only carry out descending scheduling at this UE at main carrier.Particularly, do not carry out the descending scheduling at this UE, promptly from instructing to the UE transmit status in the time interval that the auxilliary Carrier State of UE changes, base station side does not issue the data of any scheduling to this UE by main carrier and auxilliary carrier wave pin.Simultaneously, receive the uplink frame that this UE sends.Carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE, promptly from instructing to the UE transmit status in the time interval that the auxilliary Carrier State of UE changes, base station side issues data according to original scheduling mode before this UE transmit status instruction to this UE.Simultaneously, receive the uplink frame that this UE sends.Only carry out descending scheduling at this UE at main carrier, promptly from instructing to the UE transmit status in the time interval that the auxilliary Carrier State of UE changes, base station side is only dispatched this UE by main carrier, issues data to this UE.Simultaneously, receive the uplink frame that this UE sends.In actual applications, can select in above-mentioned three kinds of default scheduling strategies any one to implement.
When this UE was the HSDPA subscriber equipment, the status command that sending module 601 sends to this UE specifically comprised instruction of HS-SCCH less operation mode activation or HS-SCCH less operation pattern deexcitation instruction.When sending the instruction of HS-SCCH less operation mode activation to UE, be to be HS-SCCH less operation pattern with UE from original mode activation; When sending HS-SCCH lessoperation pattern deexcitation instruction to UE, be to be original pattern with UE from the deexcitation of HS-SCCH less operation pattern.When the state of UE under HS-SCCH less operation pattern, UE both can receive data according to HS-SCCH less operation mode, also can be according to original mode, promptly non-HS-SCCHless operation mode receives data.If but the state of UE under non-HS-SCCH less operation pattern, UE receives data according to non-HS-SCCH less operation mode so.Therefore, the base station adopts HS-SCCH less operation mode or original mode can dispatch transmission for the UE that is under the HS-SCCH less operation pattern; And, adopt original mode to dispatch transmission for the UE that is under the non-HS-SCCH less operation pattern.
Correspondingly, scheduling strategy that should be default guarantees that the descending scheduling behavior is consistent with the HS-SCCH lessoperation pattern that this UE adopts, scheduler module 603 carry out at the concrete mode of the descending scheduling of this UE according to the scheduling strategy of presetting be: do not carry out descending scheduling at this UE; Or, carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE; Or, carry out descending scheduling according to non-HS-SCCH lessoperation pattern at this UE.Particularly, do not carry out the descending scheduling at this UE, promptly from instructing to the UE transmit status in the time interval that the HS-SCCH less operation mode state of UE changes, base station side is no longer dispatched to send to this UE and is handled.Simultaneously, receive the uplink frame that this UE sends.Carry out descending scheduling according to original scheduling mode before the instruction of this UE transmit status at this UE, promptly from instructing to the UE transmit status in the time interval that the HS-SCCH less operation mode state of UE changes, base station side issues data according to original scheduling mode before this UE transmit status instruction to this UE.Simultaneously, receive the uplink frame that this UE sends.Carry out descending scheduling according to non-HS-SCCH less operation pattern at this UE, promptly from instructing to the UE transmit status in the time interval that the HS-SCCH lessoperation mode state of UE changes, base station side is dispatched this UE according to non-HS-SCCH less operation pattern (being original mode), issues data to this UE.Simultaneously, receive the uplink frame that this UE sends.In actual applications, can select in above-mentioned three kinds of default scheduling strategies any one to implement.
Particularly, judge module 602, specifically be used for judging according to the affirmation information that whether gets access to this UE whether the state of this UE changes,, judge that then the state of this UE does not change if do not get access to the feedback information of this UE or the feedback information that gets access to is not a confirmation.
Further, the state of UE does not change the two kinds of situations that comprise: first kind of situation is not get access to feedback information, in such cases, continues to obtain feedback information; Second kind of situation is to have got access to feedback information but be not ACK, and in such cases, referring to Fig. 7, this equipment also comprises:
Further, referring to Fig. 8, this equipment also comprises:
On the other hand, if the state of this UE changes, then scheduler module 603 is carried out descending scheduling at this UE according to the state of status command appointment, and UE carried out up HS-DPCCH frame according to the state after changing and sent this moment.
Module in the controlling equipment that the embodiment of the invention provides specifically illustrates as follows when practical application:
The time that each frame takies is 1 TTI, 1TTI=3slot (time slot).Sending module 601 issues bar state instruction fully needs 1 TTI, and UE returns feedback information behind 4 TTI after status command issues fully.After at the instruction of a certain UE transmit status, whether be that ACK judges whether the state of UE changes according to the feedback information of UE, divide following two kinds of situations to handle according to timing relationship:
First kind of situation: feedback information is ACK, referring to Fig. 3:
At the 1st TTI, sending module 601 instructs to the UE transmit status by HS-SCCH;
Do not get access to feedback information in the 1st to the 5th TTI, judge module 602 judges that the state of these UE does not change, during this period of time at interval in, scheduler module 603 is carried out descending scheduling at this UE according to default scheduling strategy;
At the 6th TTI, the base station gets access to the feedback information of UE, obtain the corresponding frame of the status command that this feedback information sends by up HS-DPCCH from UE with HS-SCCH, and be judged as ACK by judge module 602, then since the 6th TTI, scheduler module 603 beginnings are carried out descending scheduling at this UE according to the state of status command appointment.Simultaneously, carrying out up HS-DPCCH frame according to the state after changing immediately after the state of UE changes sends.
Second kind of situation: feedback information is not ACK, referring to Fig. 4:
At the 1st TTI, sending module 601 instructs to the UE transmit status by HS-SCCH;
Do not get access to feedback information in the 1st to the 5th TTI, judge module 602 judges that the state of these UE does not change, during this period of time at interval in, scheduler module 603 is carried out descending scheduling at this UE according to default scheduling strategy;
At the 6th TTI, the base station gets access to the feedback information of UE, obtains the corresponding frame of the status command with HS-SCCH that this feedback information sends by up HS-DPCCH from UE, and is judged as by judge module 602 and is not ACK;
At the 7th TTI, retransmission module 604 retransmits status command to UE;
(N is the natural number more than or equal to 1 at the 6th * N+6, N represents number of retransmissions) individual TTI base station gets access to the feedback information of UE, by obtaining the corresponding frame of the status command with HS-SCCH of up HS-DPCCH transmission, judge by 602 pairs of these feedback informations of judge module from UE for this feedback information:
If be judged as ACK, then handle by first kind of situation, promptly (N is the natural number more than or equal to 1 at the 6th * N+6, N represents number of retransmissions) individual TTI begins state according to the status command appointment and carries out descending scheduling at this UE, carries out the transmission of frame by up HS-DPCCH according to the state after changing immediately after the state of this UE changes;
Be not ACK if be judged as, then continue to retransmit status command to UE, wherein from the 1st TTI during receive ACK (state that is UE changes) or reach maximum retransmission, all carry out descending scheduling at this UE according to default scheduling strategy.
After the number of times that retransmits surpasses maximum retransmission, carry out descending scheduling according to sending module 601 original scheduling mode before this UE transmit status is instructed at this UE with recovery module 605.
The equipment that the embodiment of the invention provides, by instruct the state of UE to change in the time interval before from transmit status, carry out descending scheduling according to default scheduling strategy at this UE, clear and definite base station by HS-SCCH send activate or the instruction of deexcitation after the behavior of controlling equipment side and UE side, the descending scheduling behavior of controlling equipment is consistent with the state of UE, has improved the performance of system.
Embodiment five
Referring to Fig. 9, the embodiment of the invention provides a kind of dispatching patcher, and this dispatching patcher comprises the four described controlling equipments 901 as embodiment, and the HSDPA UE 902 that communicates by letter with above-mentioned controlling equipment.
Wherein, this dispatching patcher both can be WCDMA and TDSCDMA system, also can be other communication systems, and the embodiment of the invention is not done concrete qualification to this.
In sum, the embodiment of the invention is by instructing the state of UE to change in the time interval before from transmit status, carry out descending scheduling according to default scheduling strategy at this UE, clear and definite base station by HS-SCCH send activate or the instruction of deexcitation after the behavior of controlling equipment side and UE side, the descending scheduling behavior of controlling equipment is consistent with the state of UE, has improved the performance of system.
Need to prove: the controlling equipment that the foregoing description provides is when the descending scheduling that carries out at UE, only the division with above-mentioned each functional module is illustrated, in the practical application, can as required the above-mentioned functions distribution be finished by different functional modules, the internal structure of the equipment of being about to is divided into different functional modules, to finish all or part of function described above.In addition, controlling equipment that the foregoing description provides and dispatching method embodiment belong to same design, and its specific implementation process sees method embodiment for details, repeats no more here.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
All or part of step in the embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, as CD or hard disk etc.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a dispatching method is characterized in that, described method comprises:
To the instruction of high-speed downlink packet access HSDPA subscriber equipment transmit status, described status command comprises activation instruction or deexcitation instruction;
Whether the state of judging described subscriber equipment changes;
Before the state of described subscriber equipment changes, carry out descending scheduling according to default scheduling strategy at described subscriber equipment, described default scheduling strategy guarantees that the descending scheduling behavior is consistent with the state of described subscriber equipment.
2. method according to claim 1 is characterized in that, when described subscriber equipment is two carrier wave high speed downlink packet when inserting DC HSDPA subscriber equipment, described status command specifically comprises auxilliary carrier wave activation instruction or auxilliary carrier wave deexcitation instruction;
Correspondingly, described default scheduling strategy guarantees that the scheduling behavior on auxilliary carrier wave is consistent with the auxilliary Carrier State of described subscriber equipment, describedly carries out descending scheduling at described subscriber equipment according to the scheduling strategy of presetting, and specifically comprises:
Do not carry out descending scheduling at described subscriber equipment; Or,
Carry out descending scheduling according to original scheduling mode before the instruction of described subscriber equipment transmit status at described subscriber equipment; Or,
Only carry out descending scheduling at described subscriber equipment at main carrier.
3. method according to claim 1 is characterized in that, described status command comprises that specifically no High-Speed Shared Control Channel follows HS-SCCH less operation mode activation to instruct or the deexcitation of HS-SCCH lessoperation pattern is instructed;
Correspondingly, described default scheduling strategy guarantees that the descending scheduling behavior is consistent with the HS-SCCH less operation pattern that described subscriber equipment adopts, and describedly carries out descending scheduling at described subscriber equipment according to the scheduling strategy of presetting, and specifically comprises:
Do not carry out descending scheduling at described subscriber equipment; Or,
Carry out descending scheduling according to original scheduling mode before the instruction of described subscriber equipment transmit status at described subscriber equipment; Or,
Carry out descending scheduling according to non-HS-SCCH less operation pattern at described subscriber equipment.
4. according to the described method of the arbitrary claim of claim 1-3, it is characterized in that, describedly judge that whether the state of described subscriber equipment changes, and specifically comprises:
Judge according to the affirmation information that whether gets access to described subscriber equipment whether the state of described subscriber equipment changes, if the described feedback information that does not get access to the feedback information of described subscriber equipment or get access to is not a confirmation, judge that then the state of described subscriber equipment does not change.
5. method according to claim 4 is characterized in that, the described described feedback information that gets access to is not a confirmation, after the state of then judging described subscriber equipment does not change, also comprises:
Repeat described step to the instruction of subscriber equipment transmit status.
6. method according to claim 5 is characterized in that, describedly repeats describedly after the step of subscriber equipment transmit status instruction, also comprises:
After the number of times that repeats described step to subscriber equipment transmit status instruction surpasses maximum retransmission, carry out descending scheduling at described subscriber equipment according to original scheduling mode before described subscriber equipment transmit status instruction.
7. a controlling equipment is characterized in that, described equipment comprises:
Sending module is used for to the instruction of high-speed downlink packet access HSDPA subscriber equipment transmit status, and described status command comprises activation instruction or deexcitation instruction;
Judge module is used at described sending module judging whether the state of described subscriber equipment changes after the instruction of HSDPA subscriber equipment transmit status;
Scheduler module, be used for before described judge module judges that the state of described subscriber equipment changes, carry out descending scheduling at described subscriber equipment according to default scheduling strategy, described default scheduling strategy guarantees that the descending scheduling behavior is consistent with the state of described subscriber equipment.
8. equipment according to claim 7, it is characterized in that, when described subscriber equipment is two carrier wave high speed downlink packet when inserting DC HSDPA subscriber equipment, the status command that described sending module sends to described subscriber equipment specifically comprises auxilliary carrier wave activation instruction or auxilliary carrier wave deexcitation instruction;
Correspondingly, described default scheduling strategy guarantees that the scheduling behavior on auxilliary carrier wave is consistent with the auxilliary Carrier State of described subscriber equipment, described scheduler module carry out at the concrete mode of the descending scheduling of described subscriber equipment according to the scheduling strategy of presetting be:
Do not carry out descending scheduling at described subscriber equipment; Or,
Carry out descending scheduling according to original scheduling mode before the instruction of described subscriber equipment transmit status at described subscriber equipment; Or,
Only carry out descending scheduling at described subscriber equipment at main carrier.
9. equipment according to claim 7, it is characterized in that the status command that described sending module sends to described subscriber equipment comprises that specifically no High-Speed Shared Control Channel follows HS-SCCH less operation mode activation to instruct or the deexcitation of HS-SCCH less operation pattern is instructed;
Correspondingly, described default scheduling strategy guarantees that the descending scheduling behavior is consistent with the HS-SCCH less operation pattern that described subscriber equipment adopts, described scheduler module carry out at the concrete mode of the descending scheduling of described subscriber equipment according to the scheduling strategy of presetting be:
Do not carry out descending scheduling at described subscriber equipment; Or,
Carry out descending scheduling according to original scheduling mode before the instruction of described subscriber equipment transmit status at described subscriber equipment; Or,
Carry out descending scheduling according to non-HS-SCCH less operation pattern at described subscriber equipment.
10. according to the described equipment of the arbitrary claim of claim 7-9, it is characterized in that, described judge module specifically is used for judging according to the affirmation information that whether gets access to described subscriber equipment whether the state of described subscriber equipment changes, if the described feedback information that does not get access to the feedback information of described subscriber equipment or get access to is not a confirmation, judge that then the state of described subscriber equipment does not change.
11. equipment according to claim 10 is characterized in that, described equipment also comprises:
Retransmission module, being used at the described feedback information that described judge module gets access to is not confirmation, after the state of then judging described subscriber equipment does not change, repeats the step of described sending module to the instruction of subscriber equipment transmit status.
12. equipment according to claim 11 is characterized in that, described equipment also comprises:
Recovery module, be used for repeating described sending module after the number of times of the step of subscriber equipment transmit status instruction surpasses maximum retransmission, carry out descending scheduling at described subscriber equipment according to described sending module original scheduling mode before described subscriber equipment transmit status instruction when described retransmission module.
13. a dispatching patcher is characterized in that, described dispatching patcher comprises as the described controlling equipment of the arbitrary claim of claim 7-12, and the high-speed downlink packet access HSDPA subscriber equipment of communicating by letter with described controlling equipment.
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| CN102065562B (en) * | 2010-11-26 | 2013-11-06 | 华为技术有限公司 | Scheduling method, equipment and system |
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| CN101409608A (en) * | 2007-10-12 | 2009-04-15 | 中兴通讯股份有限公司 | Transmission method for mixed automatic re-transmission request |
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