CN101155392A - Method, base station and subscriber terminal for obtaining scheduling control information in high speed grouping access - Google Patents
Method, base station and subscriber terminal for obtaining scheduling control information in high speed grouping access Download PDFInfo
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- CN101155392A CN101155392A CNA2006101134579A CN200610113457A CN101155392A CN 101155392 A CN101155392 A CN 101155392A CN A2006101134579 A CNA2006101134579 A CN A2006101134579A CN 200610113457 A CN200610113457 A CN 200610113457A CN 101155392 A CN101155392 A CN 101155392A
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Abstract
A method for acquiring scheduling control information in a high speed grouping interface is disclosed in the present invention, comprising steps: to obtain this time scheduling control information through processing the scheduling control information acquired by one time scheduling on the uplink and downlink channels in the system according to the scheduling user service kind, and sending this time scheduling control information by the uplink and downlink channels. A base station is also disclosed in the present invention, comprising a base station acquiring scheduling control information unit, and a user terminal, comprising the terminal acquiring scheduling control information unit. The present invention leads the user applying the HSDPA or HSUPA service to be able to acquire scheduling control information without DPCH companion, reduces effectively physical resource spending brought by companion DPCH, leads the HSDPA/HSUPA speciality to be able to realize.
Description
Technical field
The present invention relates to communication technical field, relate to the method, base station and the user terminal that obtain scheduling control information in a kind of high-speed packet access specifically.
Background technology
In order to improve descending data transmission rate, introduced HSDPA (high speed downlink packet access) technology in 3GPP (third generation partner program) the R5 version, simultaneously in order to improve up data transmission rate, so that support business such as recreation, in 3GPP R7 version, introduced HSUPA (high speed uplink packet access) technology again.
In 3G TDD (3G (Third Generation) Moblie time division duplex) system that uses the HSDPA/HSUPA technology, mainly adopted the shared mechanism of IP based network, i.e. multiple users share data channel and multiple users share scheduling controlling and feedback channel.For wireless environment is made response quickly, maximum resource efficient, HSDPA/HSUPA has adopted the fast dispatch scheme based on the base station.For HSDPA, system finishes Real-Time Scheduling and control to physical resource by the MAC-hs entity that is positioned at the base station; For HSUPA, system finishes Real-Time Scheduling and control to physical resource by the MAC-e entity that is positioned at the base station, RNC (radio network controller) only controls resource when initial configuration, system is by transferring to the base station to the function of Real-Time Scheduling and control from RNC, and the resource-sharing that comes multi-user in the realization system in conjunction with the fast control channel of sharing and feedback channel, the resource utilization and the throughput of maximization sub-district.
Under the very limited condition of TDD physical code channel resource, the sharing characteristic of HSDPA/HSUPA has determined the user to transmit can not obtain long-term continuous scheduling, simultaneously because the traffic performance of most of data service does not require the continuous transmission of packet yet, the discontinuity that will inevitably cause the user to be transmitted, and these discontinuous scheduling bring a lot of real-time control problem can for 3G TDD system:
After the user is not scheduled for a long time, there is not up-to-date channel quality to report in the system, the data block size of this transmission and the scheduling mode of physical resource etc. can only be decided by the CQI (channel quality indication) that the last time reports in the base station, and at this moment channel condition has changed, produce channel fading and cyclic variation, might cause transmitting the failure of data owing to the mistake of scheduling; After the user is not scheduled for a long time, power control is adjusted also can be inaccurate, because power control is to control the user and constantly adjust transmitting power for the variation of the variation of adaptive channel condition and disturbed condition, to guarantee the quality of reception, its basic principle is exactly continuous track channel change, thereby predicted channel changes accurately, if the user can not get scheduling for a long time, then can't control the user in real time and adjust transmitting power, if the blanking time that the user can not get dispatching is long, then need to restart open Loop Power control, to obtain real-time power controlling; After the user is not scheduled for a long time, can cause the transmission first time after recovering scheduling can't use the wave beam forming of smart antenna, because TD-SCDMA (TD SDMA) system uses smart antenna, smart antenna can obtain the figuration parameter of these incoming waves by the arrival bearing who estimates terminal, utilize these figuration parameters to reach the purpose that reduces inter-user interference, if the user is not scheduled for a long time, the base station owing to do not know user's real time position, and can't use smart antenna to obtain the figuration parameter of user's incoming wave when dispatching this user next time;
When the user is rescheduled after through a spacer segment, might be in the state of step-out, because the TD-SCDMA system needs the user to carry out strict uplink synchronous, it is identical to be that each user's up channel arrives time of base station, be divided into synchronously when inserting synchronously and after inserting synchronously, if the user can not get scheduling for a long time, just may be because its change in location can not keep causing the quality of reception seriously to descend synchronously, therefore must be before sending data, must set up process earlier synchronously, and then carry out the transmission of uplink data channels or uplink feedback channel according to the synchronization parameter that obtains, but the synchronous foundation of system will at first send SYNC-UL (up access is synchronous) sign indicating number, and each sub-district has only 8 SYNC-UL sign indicating numbers at most, when a plurality of users send the SYNC-UL sign indicating number simultaneously, may cause collision because of sending identical SYNC-UL sign indicating number, the SYNC-UL sign indicating number that can be accepted by the base station in the TTI (Transmission Time Interval) is very limited simultaneously, if wish in the system that the user who inserts is many with the user who inserts the back step-out, also serious collision problem be can cause, user's access and professional use influenced.
At the problems referred to above, in order to support the realization of HSDPA/HSUPA characteristic, in the 3G TDD system that uses the HSDPA/HSUPA technology, increased a pair of DPCH of following (DPCH), its main effect is to transmit RRC radio resource control information and other necessary feedback information to the user, its another effect is to be the base station reference of submitting necessary information, Synchronization Control can be carried out to the user according to the time of the DPCH that receives in the base station, also can judge its position and it is carried out wave beam forming according to the arrival bearing of DPCH.Because following DPCH is dedicated channel, can only use separately by a user, perhaps use in turn in the mode of time-division by a few users, therefore can provide effective reference information for the base station.
But the limited physical code channel resource of having followed the DPCH channel occupancy, when need not it in the system information reference and feedback information are provided, the code channel resource of following DPCH to take can not be distributed to other user and use, and therefore greatly reduces the utilance of resource; And owing to the treatment mechanism of the shared channel of following DPCH and HSUPA/HSDPA is different with method, terminal and base station need be supported the treatment mechanism of different channels simultaneously when design, therefore follow the design of DPCH to increase the complexity that system realizes, increase simultaneously following the scheduling of DPCH, need consider the scheduling of shared channel simultaneously, increased the complexity of algorithm so greatly, influenced the efficient of subscriber channel scheduling and realize effect.
Summary of the invention
The object of the present invention is to provide the method for obtaining scheduling control information in a kind of high-speed packet access, to solve in the prior art owing to the user can not be dispatched the system's control problem that causes for a long time continuously, and owing to DPCH is followed in employing in system, and limited other users' real-time access in the system, influence the number of users of system's support and the service rate that can support, increased the problem of the complexity of dispatching algorithm, the easier realization of characteristic that make that system's high speed is descending, upstream packet inserts makes system's control that is optimized simultaneously.
Another object of the present invention is to provide a kind of base station and user terminal of using the inventive method, follow the problem of DPCH carrying scheduling control information, make the easier realization of characteristic that system's high speed is descending, upstream packet inserts to solve available technology adopting.
For addressing the above problem, the invention provides following technical scheme:
Obtain the method for scheduling control information during a kind of high-speed packet inserts, comprise step:
According to the class of business of dispatched users, the scheduling control information up, that the last scheduling of down channel is obtained in the system is handled the scheduling control information that obtains this, and send this scheduling control information by up, down channel.
Before carrying out described step, also comprise: the condition of dispatched users is set, and judges and satisfy described schedulable condition.
The condition of described dispatched users is: when reaching time threshold of setting, the user is not scheduled.
The described condition that dispatched users is set is: for each user disposes a timer, this timer reaches threshold value and the user is not scheduled as the condition of dispatched users.
The described condition that dispatched users is set also comprises: when described timer does not reach threshold value and described user when promptly being scheduled, and then this timer zero clearing and begin next timing.
The condition of described dispatched users is: high-level signaling is transmitted to user terminal in the base station, and/or user terminal carries out up high-level signaling feedback, and/or user terminal carries out periodic measurement and reports.
The described last time, the scheduling control information up, that down channel obtains in the system comprised when being scheduling to the initial time scheduling:
The scheduling control information of the down channel initial time that the scheduling control information of the up channel initial time that obtains according to open Loop Power control and open loop Synchronization Control and the initial setting up by system obtain.
Described method comprises step:
A, up, that the last scheduling of down channel is obtained Control Parameter and schedule information data are handled, obtained the Control Parameter and the schedule information data of this scheduling, and this Control Parameter and schedule information data are sent to user terminal by down channel;
B, user terminal are handled Control Parameter and the schedule information data up, this scheduling of down channel that receive, Control Parameter that obtains feeding back and schedule information data, and the Control Parameter and the schedule information data of described feedback are sent to the base station by up channel.
Described user's class of business is that high speed downlink packet inserts, and steps A comprises:
Descending Control Parameter to the descending Control Parameter of the last scheduling of down channel carries out obtaining after the smoothing processing this scheduling obtains these schedule information data and sends these schedule information data to user terminal on High-Speed Shared Control Channel according to described descending Control Parameter;
Schedule information data according to the last time obtain last upload control parameter, this upload control parameter is carried out obtaining the upload control parameter that this up channel needs after the smoothing processing, and send described upload control parameter to user terminal by High-Speed Shared Control Channel.
Described when data to be sent are arranged in the system, send the upload control parameter by High-Speed Shared Control Channel and behind user terminal, also comprise:
Send described data to be sent to user terminal by high speed descending sharing channel.
Described when not having data to be sent in the system, obtain these schedule information data and behind user terminal, also comprise sending these schedule information data on the High-Speed Shared Control Channel according to descending Control Parameter:
Sending the transmission block size on High-Speed Shared Control Channel is that zero information arrives user terminal.
Described user's class of business is that high speed downlink packet inserts, and step B comprises:
After user terminal receives described upload control parameter, obtain the schedule information data and on high-speed shared information channel, send these schedule information data to the base station according to described upload control parameter;
After user terminal receives described schedule information data, obtain the descending Control Parameter of this scheduling after these data are measured, user terminal carries out the descending Control Parameter that smoothing processing obtains feeding back to described descending Control Parameter, and sends the descending Control Parameter of feedback to the base station by high-speed shared information channel.
Described user's class of business is that high speed uplink packet inserts, and steps A comprises:
Descending Control Parameter to the descending Control Parameter of the last scheduling of down channel carries out obtaining after the smoothing processing this scheduling obtains these schedule information data and sends these schedule information data to user terminal on the descending absolute acknowledgement channel that strengthens according to described descending Control Parameter;
Schedule information data according to the last time obtain last upload control parameter, line parameter on this is carried out obtaining the upload control parameter that this up channel needs after the smoothing processing, and send described upload control parameter to user terminal by the descending absolute acknowledgement channel that strengthens.
Described user's class of business is that high speed uplink packet inserts, and also comprises after the steps A:
Receive after data that user terminal sends and the Control Parameter reception condition by this base station of hybrid automatic repeat request indication channel informing user terminal that strengthens.
Described user's class of business is that high speed uplink packet inserts, and step B comprises:
After user terminal receives described upload control parameter, obtain the schedule information data and on up enhancing dedicated transmission channel, send these schedule information data to the base station according to described upload control parameter;
After user terminal receives described schedule information data, obtain the descending Control Parameter of this scheduling after these data are measured, the user carries out the descending Control Parameter that obtains feeding back after the smoothing processing to described descending Control Parameter, and sends out the descending Control Parameter of feedback to the base station by up enhancing dedicated transmission channel.
Described when data to be sent are arranged in the system, user terminal obtains the schedule information data according to the upload control parameter and send these schedule information data on up enhancing dedicated transmission channel also comprising to the base station:
User terminal sends described data to be sent to the base station on up enhancing dedicated transmission channel.
Described when not having data to be sent in the system, user terminal obtains the schedule information data according to the upload control parameter and send these schedule information data on up enhancing dedicated transmission channel also comprising to the base station:
User terminal sends the data of once scheduling to the base station on up enhancing dedicated transmission channel.
A kind of base station, described base station comprises:
The base station obtains the scheduling control information unit, be used for up, that the last scheduling of down channel is obtained Control Parameter and schedule information data are handled, obtain the Control Parameter and the schedule information data of this scheduling, and this Control Parameter and schedule information data are sent to user terminal by down channel.
Described base station obtains the scheduling control information unit and comprises:
The base station up channel obtains the scheduling control information unit, be used for obtaining last upload control parameter according to the schedule information data of up channel last time, and after this upload control parameter carried out smoothing processing, obtain the upload control parameter that this up channel needs, and send described upload control parameter to user terminal;
The base station down channel obtains the scheduling control information unit, be used for the descending Control Parameter of carrying out obtaining after the smoothing processing this scheduling according to the descending Control Parameter of the last scheduling of down channel, obtain these schedule information data and send these schedule information data to user terminal according to described descending Control Parameter.
Described base station also comprises:
Trigger scheduling unit, be used to be provided with the condition of dispatched users, and judge whether the user satisfies the condition of described dispatched users.
Described triggering scheduling unit comprises:
The schedulable condition unit is set, when being used to be provided with time threshold that reaches setting, the user is not by the condition of base station scheduling as dispatched users, and/or setting is transmitted high-level signaling when the base station to the user, and/or be provided with as the user and carry out up high-level signaling feedback, and/or carry out giving the correct time on the periodic measurement as the condition of dispatched users as the user;
Judge the schedulable condition unit, when being used to judge time threshold that reaches setting, the user is not satisfied the condition of dispatched users by base station scheduling, and/or judge the condition that when the user transmits high-level signaling, satisfies dispatched users when the base station, and/or judge as the user and carry out up high-level signaling feedback, and/or the user carries out giving the correct time on the periodic measurement and satisfies the condition of dispatched users.
A kind of user terminal, described user terminal comprises:
Terminal is obtained the scheduling control information unit, be used for Control Parameter and the schedule information data up, this scheduling of down channel that receive are handled, Control Parameter that obtains feeding back and schedule information data, and by up channel with the feedback Control Parameter and schedule information data send to the base station.
Described terminal is obtained the scheduling control information unit and is comprised:
The terminal up channel obtains the scheduling control information unit, be used to receive the upload control parameter after, obtain the schedule information data and send these schedule information data according to described upload control parameter to the base station;
The terminal down channel obtains the scheduling control information unit, after being used to receive the schedule information data, described data are measured the descending Control Parameter of this scheduling, described descending Control Parameter is carried out obtaining after the smoothing processing the descending Control Parameter that is used to feed back, and send the descending Control Parameter of feedback to the base station.
By technical scheme provided by the invention as seen, the present invention has following characteristics and advantage:
After the present invention satisfies the condition of the dispatched users that system is provided with as the user, the base station can be dispatched to obtain control information this user according to the business of this user applies, this method can make the user who no matter applies for HSDPA or HSUPA business can both effectively carry out Synchronization Control, power control and wave beam forming under the condition of not following DPCH, improved the demodulation performance of system, reduced collision probability, reduced the scheduling time delay, can also effectively carry out the measurement of CQI by dispatching;
Because the present invention has cancelled and has followed DPCH, therefore can effectively reduce expense by the physical resource of following DPCH to bring, alleviate the resource-constrained problem of TDD system's code channel, scheduling and controlling Design that can simplified system, make the easier realization of HSDPA/HSUPA characteristic, can simplified system equipment and the design of terminal, reduced development difficulty;
The present invention follows the overall performance that DPCH can also elevator system by cancellation, helps the evolution to complete IP network, makes system support all business realizing based on the mechanism of sharing.
Description of drawings
Fig. 1 is the preferred embodiment flow chart of the inventive method;
Fig. 2 passes through the flow chart of configuration timer as the dispatched users condition for the present invention;
Fig. 3 for user applies of the present invention when data to be sent are arranged in HSDPA and the system system obtain the flow chart of scheduling control information;
Fig. 4 for user applies of the present invention when not having data to be sent in HSDPA and the system system obtain the flow chart of scheduling control information;
Fig. 5 for user applies of the present invention during HSUPA system obtain the flow chart of scheduling control information;
Fig. 6 is for using a kind of base station preferred embodiment block diagram of the inventive method;
Fig. 7 is for using a kind of user terminal preferred embodiment block diagram of the inventive method.
Embodiment
Core of the present invention be among the HSDPA/HSUPA by following DPCH to obtain the problem of scheduling control information, by adopting the scheduling control information that obtains under the shared mechanism to get method and cancel the use of following DPCH, thereby in the control problem that the solution discontinuous dispatching brings, solving increases the problem of following DPCH to bring, system is optimized, and performance is improved.
In order to make those skilled in the art understand the present invention better, the present invention is further detailed explanation below in conjunction with accompanying drawing.
Do not insert user's collocating uplink, the descending DPCH channel of following in the system of the present invention for each, when discontinuous transfer of data appears in each user terminal, system starts user's scheduling obtaining scheduling control information by certain condition is set, the flow process of this method as shown in Figure 1:
Step 110: system is provided with the condition of dispatched users.
System's setting is when reaching time threshold of setting, and the user is not by the scheduling of base station scheduling startup to this user;
When system will be when the user sends RRC signaling contour level signaling, and need carry out giving the correct time on the feedback of related higher-level signaling or the periodic measurement as the user, also can start-up system to user's scheduling.
Step 220: after the user satisfied described schedulable condition, according to the class of business of this user applies, the scheduling control information that last scheduling is obtained to channel was handled the scheduling control information that obtains this, and sends this scheduling control information.
The class of business of user applies comprises HSDPA and/or HSUPA, and when user terminal made a call request, system selected HSDPA and/or HSUPA to provide service for it according to the type of service of user applies and the load-bearing capacity of system;
After the user satisfied schedulable condition, system realized user's scheduling according to the characteristics of HSDPA and HSUPA and obtains the Control Parameter of systems such as uplink and downlink power contorl parameters, figuration Control Parameter and uplink synchronous Control Parameter;
Be scheduling to initial time when scheduling when the last time, the scheduling control information of the down channel initial time that the scheduling control information of the up channel initial time that system obtains according to open Loop Power control and open loop Synchronization Control and the initial setting up by system obtain.
Concrete, handle up, that the last scheduling of down channel is obtained Control Parameter and schedule information data the base station, obtain the Control Parameter and the schedule information data of this scheduling, and this Control Parameter and schedule information data are sent to user terminal by up, down channel; User terminal is handled Control Parameter and the schedule information data up, this scheduling of down channel that receive, Control Parameter that obtains feeding back and schedule information data, and this Control Parameter and schedule information data are sent to the base station by up, down channel.
The present invention is by the configuration timer as the flow process of dispatched users condition as shown in Figure 2:
Step 210: the base station disposes a timer for each user.
System starts scheduling to the user in order to trigger certain condition, therefore the base station end has all disposed a timer for each user, this timer starts as zero-time with TTI, and carries out timing accumulative total with TTI as chronomere, and Transmission Time Interval TTI is generally 5ms.
Step 220: judge whether the user is dispatched continuously by system, if not then execution in step 230, otherwise, execution in step 270.
Step 230: timer picks up counting.
When system was not dispatched continuously, the user side timer picked up counting, and this timer is that chronomere carries out timing accumulative total with TTI.
Step 240: whether judge before timer reaches threshold value the user by system call, if then execution in step 250, otherwise, execution in step 260.
Concrete, the concrete value of threshold value needs the configuring condition with reference to real system, the decline situation that comprises power contorl parameters, Synchronization Control parameter, wave beam forming and channel is determined, usually can not surpass 160ms, because 160ms is the up minimum value that reaches desynchronizing state in the system, if surpass this value, then system has entered desynchronizing state, and can't carry out the synchronous scheduling of user uplink.
Step 250: scheduling next time is waited in reclocking after the timer zero clearing.
The user is by base station scheduling before the timer of user side reaches threshold value, and the scheduling of next base station to this user waited in then timer zero clearing and begin reclocking, and process ends.
Step 260: system call user and obtain scheduling after Control Parameter.
The user is not by base station scheduling before the timer of user side reaches threshold value, then start the base station this user is dispatched and obtain the Control Parameter of systems such as up, descending power Control Parameter, figuration Control Parameter and uplink synchronous Control Parameter, process ends then.
Step 270: after custom system was dispatched continuously, system obtained the Control Parameter after the scheduling.
When the user applies in the system when in HSDPA business and the system data to be sent being arranged, the flow process that system obtains scheduling control information as shown in Figure 3:
Step 310: dispatch the user who has applied for the HSDPA business after satisfying schedulable condition the base station.
Scheduling among the HSDPA is mainly finished by the MAC-hs functional entity in the base station, and the core concept of scheduling is the reasonable distribution shared resource, as code word and power etc., the utilance of maximum resource.
Step 320: the base station obtains Control Parameter by smoothing processing, and sends data to user terminal by High-Speed Shared Control Channel and high speed descending sharing channel.
The base station end carries out obtaining after the smoothing processing descending power Control Parameter and the figuration Control Parameter of this scheduling to the descending Control Parameter of the last scheduling of down channel, especially, when the last time is scheduling to the initial time scheduling, the scheduling control information of the down channel initial time that the scheduling control information of the up channel initial time that system obtains according to open Loop Power control and open loop Synchronization Control and the initial setting up by system obtain; Because by the parameter that obtains of scheduling once all is instantaneous value, these instantaneous values are not suitable for directly needing therefore to consider that as Control Parameter interlude carries out smoothing processing to these parameters and obtains final Control Parameter;
For example: can calculate the final Control Parameter of this scheduling according to formula y (n)=x (n-1) * P+x (n) * (1-p), p is a forgetting factor in the formula, x (n-1) is the parameter of last scheduling, the Control Parameter that x (n) produces for this scheduling is the final system control parameters that produces through calculating back y (n); When initial scheduling, the parameter x (n-1) of last scheduling can value be 0;
The base station scheduling of minimum physical resource realization to the user, here to refer to take a spreading factor be 16 physical code channel to Zui Xiao physical resource, concrete, the base station is according to the descending Control Parameter of top this scheduling that obtains through smoothing processing, send the data that comprise this schedule information by High-Speed Shared Control Channel to the user and arrive the user, the data of these schedule informations comprise channel code collection, structure of time slot, modulation system and user ID etc.;
The base station obtains last upload control parameter according to the information data of the last scheduling of up channel simultaneously, the upload control parameter comprises uplink synchronous Control Parameter and power contorl parameters, these upload control parameters are carried out obtaining uplink synchronous Control Parameter and the power contorl parameters that this up channel needs after the smoothing processing, and send these upload control parameters to user terminal by High-Speed Shared Control Channel;
Owing in the system data to be sent are arranged, the base station also sends valid data to be sent to user terminal by high speed descending sharing channel; Trigger the scheduling to the user when needing user terminal transmission high-level signaling in the system, then these high-level signalings also send to user terminal by being carried on the DSCH Downlink Shared Channel.
Step 330: user terminal obtains Control Parameter by smoothing processing, and sends control information data and descending Control Parameter to the base station by high-speed shared information channel.
After user terminal receives the schedule information data of base station by the High-Speed Shared Control Channel transmission, obtain the descending power Control Parameter and the figuration Control Parameter of this scheduling after these data are measured, the user carries out descending power Control Parameter and the figuration Control Parameter that smoothing processing obtains feeding back to these descending Control Parameter, and sends this descending Control Parameter to the base station by high-speed shared information channel; The smoothing processing process here is consistent with the description in the step 320, does not repeat them here;
After user terminal receives the upload control parameter of base station transmission simultaneously, send the schedule information data to the base station on high-speed shared information channel according to these upload control parameters, what comprise the feedback transmission grouping in the schedule information data replys with the information of downlink quality etc.
When the user applies in the system when not having data to be sent in HSDPA business and the system, the flow process that system obtains scheduling control information as shown in Figure 4:
Step 410: dispatch the user who has applied for the HSDPA business after satisfying schedulable condition the base station.
Scheduling among the HSDPA is mainly finished by the MAC-hs functional entity in the base station, and the core concept of scheduling is the reasonable distribution shared resource, as code word and power etc., the utilance of maximum resource.
Step 420: the base station obtains Control Parameter by smoothing processing, and to send data block by High-Speed Shared Control Channel be that zero information is to user terminal.
The base station end carries out obtaining after the smoothing processing descending power Control Parameter and the figuration parameter of this scheduling to the Control Parameter of the last scheduling of down channel, especially, when the last time is scheduling to the initial time scheduling, the scheduling control information of the down channel initial time that the scheduling control information of the up channel initial time that system obtains according to open Loop Power control and open loop Synchronization Control and the initial setting up by system obtain; Here smoothing processing is consistent with the description in the step 320, does not repeat them here;
The base station scheduling of minimum physical resource realization to the user, here to refer to take a spreading factor be 16 physical code channel to Zui Xiao physical resource, concrete, the base station is according to the descending Control Parameter of top this scheduling that obtains through smoothing processing, send the data that comprise this schedule information by High-Speed Shared Control Channel to the user and arrive user terminal, the data of these schedule informations comprise channel code collection, structure of time slot, modulation system and user ID etc.;
Owing to do not have data to be sent in the system, thus the base station also by High-Speed Shared Control Channel to send the transmission block size be zero information inform to user terminal that user base station this moment does not have will be by the data of high speed descending sharing channel transmission;
The base station obtains last upload control parameter according to the information data of the last scheduling of up channel simultaneously, the upload control parameter comprises uplink synchronous Control Parameter and power contorl parameters, these upload control parameters are carried out obtaining uplink synchronous Control Parameter and the power contorl parameters that this up channel needs after the smoothing processing, and send these upload control parameters to user terminal by High-Speed Shared Control Channel.
Step 430: user terminal obtains Control Parameter by smoothing processing, and arrives the base station by high-speed shared information channel transmission schedule information data and descending Control Parameter.
After user terminal receives the schedule information data of base station by the High-Speed Shared Control Channel transmission, obtain the descending power Control Parameter and the figuration Control Parameter of this scheduling after these data are measured, user terminal carries out descending power Control Parameter and the figuration Control Parameter that smoothing processing obtains scheduling next time to these descending Control Parameter, and sends this descending Control Parameter to the base station by high-speed shared information channel; The smoothing processing process here is consistent with the description in the step 320, does not repeat them here;
Simultaneously user terminal receive the transmission block size for after the information of " 0 ", no longer receive the data of high speed descending sharing channel transmission, and after user terminal receives the upload control parameter of base station transmission, obtain the schedule information data and send the schedule information data to the base station on high-speed shared information channel according to these upload control parameters, what comprise in the schedule information data that feedback transmission divides into groups replys with the information of downlink quality etc.
When the user applies in the system during HSUPA, the flow process that system obtains scheduling control information as shown in Figure 5:
Step 510: dispatch the user who has applied for the HSUPA business after satisfying schedulable condition the base station.
Scheduling among the HSUPA is mainly finished by MAC-e functional entity newly-increased in the base station, and the core concept of scheduling is that the user who avoids too much inserts too high speed, thereby brings interference to system.
Step 520: the base station obtains Control Parameter by smoothing processing, and arrives user terminal by descending absolute acknowledgement channel transmission data and the Control Parameter that strengthens.
The descending power Control Parameter and the figuration Control Parameter of this scheduling carried out obtaining after the smoothing processing in the base station to the descending Control Parameter of the last scheduling of down channel; Because by once dispatching the parameter that obtains all is instantaneous value, these instantaneous values are not suitable for directly as Control Parameter, therefore need to consider that interlude carries out smoothing processing to these parameters and obtains final Control Parameter, especially, when the last time is scheduling to the initial time scheduling, the scheduling control information of the down channel initial time that the scheduling control information of the up channel initial time that system obtains according to open Loop Power control and open loop Synchronization Control and the initial setting up by system obtain;
For example: can calculate the final Control Parameter of this scheduling according to formula y (n)=x (n-1) * P+x (n) * (1-p), p is a forgetting factor in the formula, x (n-1) is the parameter of last scheduling, the Control Parameter that x (n) produces for this scheduling is the final system control parameters that produces through calculating back y (n); When initial scheduling, the parameter x (n-1) of last scheduling can value be 0;
The base station scheduling of minimum physical resource realization to the user, here to refer to take a spreading factor be 16 physical code channel to Zui Xiao physical resource, concrete, the base station sends this schedule information data to the user according to the descending Control Parameter that obtains previously on the descending absolute acknowledgement channel that strengthens, the schedule information data comprise channel code collection, structure of time slot, transmission block size, modulation system and user ID etc.;
The base station obtains last upload control parameter according to the schedule information data of the last scheduling of up channel simultaneously, comprise uplink synchronous Control Parameter and power contorl parameters, these upload control parameters are carried out obtaining uplink synchronous Control Parameter and the power contorl parameters that this up channel needs after the smoothing processing, send these upload control parameters to user terminal by the descending absolute acknowledgement channel that strengthens then.
Step 530: user terminal obtains Control Parameter by smoothing processing, and arrives the base station by up enhancing dedicated transmission channel transmission data and Control Parameter.
After user terminal receives the upload control parameter of base station transmission, send the schedule information data to the base station on up enhancing dedicated transmission channel according to these upload control parameters, these schedule information data comprise the feedback information with downlink quality of replying of feedback transmission grouping;
When data to be sent were arranged in the system, to the base station, spreading factor of this data occupancy to be sent was 16 minimum physical code channel resource to user terminal by the data to be sent in the up enhancing dedicated transmission channel transmitting system; Start scheduling to the user when user terminal carries out giving the correct time on descending high-level signaling feedback or the periodic measurement, up high-level signaling feedback or periodic measurement report by being carried on the up enhancing dedicated transmission channel and send to the base station end; When data to be sent were arranged in the system, user terminal sent the data of last scheduling to the base station by up enhancing dedicated transmission channel, and spreading factor of this data occupancy is 16 minimum physical code channel resource;
After user terminal receives the schedule information data of base station by the descending absolute acknowledgement channel transmission of enhancing simultaneously, these data are measured the descending power Control Parameter and the figuration Control Parameter of this scheduling, the user carries out obtaining being used for next descending power Control Parameter and figuration Control Parameter of dispatching after the smoothing processing to described descending Control Parameter, and sends these descending Control Parameter by up enhancing dedicated transmission channel to the base station; Here the process of smoothing processing is consistent with the description in the step 520, does not repeat them here.
Step 540: the hybrid automatic repeat request indication channel that the base station is passed through to strengthen is to terminal feedback information.
The base station receives after data that user terminal sends and the Control Parameter reception condition by this base station of hybrid automatic repeat request indication channel informing user terminal that strengthens.
A kind of base station preferred embodiment of using the inventive method is as shown in Figure 6:
This base station comprises: trigger scheduling unit 610 and base station and obtain scheduling control information unit 620.Wherein, trigger scheduling unit 610 and be used to be provided with the condition of dispatched users, and judge whether the user satisfies the condition of described dispatched users; The base station obtains scheduling control information unit 620 and is used for up, that the last scheduling of down channel is obtained Control Parameter and schedule information data are handled, obtain the Control Parameter and the schedule information data of this scheduling, and this Control Parameter and schedule information data are sent to user terminal by down channel.
Triggering scheduling unit 610 comprises and is used to be provided with schedulable condition unit 611 being set and being used to judge whether the user satisfies the judgement schedulable condition unit 612 of schedulable condition of dispatched users condition.Wherein, schedulable condition unit 611 is set to be provided with when reaching a predefined time threshold, the user is not by the condition of base station scheduling as dispatched users, and/or setting is transmitted the condition of high-level signaling as dispatched users when the base station to the user, and/or be provided with as the user and carry out up high-level signaling feedback, and/or the user carries out periodic measurement and reports condition as dispatched users; The user was not satisfied the condition of dispatched users when time threshold that reaches setting was judged in judgement schedulable condition unit 612 by base station scheduling, and/or judge the condition that when the user transmits high-level signaling, satisfies dispatched users when the base station, and/or judge as the user and carry out up high-level signaling feedback, and/or the user carries out giving the correct time on the periodic measurement and satisfies the condition of dispatched users.
The base station obtains scheduling control information unit 620 and comprises that the base station up channel obtains scheduling control information unit 621 and the base station down channel obtains scheduling control information unit 622.Wherein, the base station up channel obtains schedule information unit 621 and is used for obtaining last upload control parameter according to the feedback data of the last scheduling of up channel, and after this upload control parameter carried out smoothing processing, obtain the upload control parameter that this up channel needs, and send described upload control parameter to user terminal; The base station down channel obtains schedule information unit 622 and is used for the descending Control Parameter of carrying out obtaining after the smoothing processing this scheduling according to the descending Control Parameter of the last scheduling of down channel, and send these schedule information data to user terminal according to described descending Control Parameter, especially when the last time is scheduling to the initial time scheduling, the scheduling control information of the down channel initial time that the scheduling control information of the up channel initial time that system obtains according to open Loop Power control and open loop Synchronization Control and the initial setting up by system obtain.
A kind of user terminal preferred embodiment of using the inventive method is as shown in Figure 7:
This user terminal comprises: terminal is obtained scheduling control information unit 710, be used for Control Parameter and the schedule information data up, this scheduling of down channel that receive are handled, Control Parameter that obtains feeding back and schedule information data, and this Control Parameter and schedule information data are sent to the base station by up channel.
Terminal is obtained scheduling control information unit 710 and is comprised that the terminal up channel obtains schedule information unit 711 and the terminal down channel obtains schedule information unit 712.Wherein, after the terminal up channel obtains scheduling control information unit 711 and is used to receive the upload control parameter, obtain the schedule information data and send these schedule information data to the base station according to described upload control parameter; After the terminal down channel obtains scheduling control information unit 712 and is used to receive the schedule information data, described data are measured the descending Control Parameter of this scheduling, described descending Control Parameter is carried out obtaining after the smoothing processing the descending Control Parameter that is used to feed back, and send this descending Control Parameter to the base station.
For method and apparatus of the present invention, within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (23)
1. obtain the method for scheduling control information during a high-speed packet inserts, it is characterized in that, comprise step:
According to the class of business of dispatched users, the scheduling control information up, that the last scheduling of down channel is obtained in the system is handled the scheduling control information that obtains this, and send this scheduling control information by up, down channel.
2. method according to claim 1 is characterized in that, also comprises before carrying out described step: the condition of dispatched users is set, and judges and satisfy described schedulable condition.
3. method according to claim 2 is characterized in that, the condition of described dispatched users is: when reaching time threshold of setting, the user is not scheduled.
4. method according to claim 3 is characterized in that, the described condition that dispatched users is set is: for each user disposes a timer, this timer reaches threshold value and the user is not scheduled as the condition of dispatched users.
5. method according to claim 4 is characterized in that, the described condition that dispatched users is set also comprises: when described timer does not reach threshold value and described user when promptly being scheduled, and then this timer zero clearing and begin next timing.
6. method according to claim 2 is characterized in that the condition of described dispatched users is: high-level signaling is transmitted to user terminal in the base station, and/or user terminal carries out up high-level signaling feedback, and/or user terminal carries out periodic measurement and reports.
7. method according to claim 1 is characterized in that, the described last time, the scheduling control information up, that down channel obtains in the system comprised when being scheduling to the initial time scheduling:
The scheduling control information of the down channel initial time that the scheduling control information of the up channel initial time that obtains according to open Loop Power control and open loop Synchronization Control and the initial setting up by system obtain.
8. method according to claim 1 is characterized in that, described method comprises step:
A, up, that the last scheduling of down channel is obtained Control Parameter and schedule information data are handled, obtained the Control Parameter and the schedule information data of this scheduling, and this Control Parameter and schedule information data are sent to user terminal by down channel;
B, user terminal are handled Control Parameter and the schedule information data up, this scheduling of down channel that receive, Control Parameter that obtains feeding back and schedule information data, and the Control Parameter and the schedule information data of described feedback are sent to the base station by up channel.
9. method according to claim 8 is characterized in that, described user's class of business is that high speed downlink packet inserts, and steps A comprises:
Descending Control Parameter to the descending Control Parameter of the last scheduling of down channel carries out obtaining after the smoothing processing this scheduling obtains these schedule information data and sends these schedule information data to user terminal on High-Speed Shared Control Channel according to described descending Control Parameter;
Schedule information data according to the last time obtain last upload control parameter, this upload control parameter is carried out obtaining the upload control parameter that this up channel needs after the smoothing processing, and send described upload control parameter to user terminal by High-Speed Shared Control Channel.
10. method according to claim 9 is characterized in that, and is described when data to be sent are arranged in the system, sends the upload control parameter by High-Speed Shared Control Channel and also comprises behind user terminal:
Send described data to be sent to user terminal by high speed descending sharing channel.
11. method according to claim 9, it is characterized in that, described when not having data to be sent in the system, obtain these schedule information data and behind user terminal, also comprise sending these schedule information data on the High-Speed Shared Control Channel according to descending Control Parameter:
Sending the transmission block size on High-Speed Shared Control Channel is that zero information arrives user terminal.
12. method according to claim 8 is characterized in that, described user's class of business is that high speed downlink packet inserts, and step B comprises:
After user terminal receives described upload control parameter, obtain the schedule information data and on high-speed shared information channel, send these schedule information data to the base station according to described upload control parameter;
After user terminal receives described schedule information data, obtain the descending Control Parameter of this scheduling after these data are measured, user terminal carries out the descending Control Parameter that smoothing processing obtains feeding back to described descending Control Parameter, and sends the descending Control Parameter of feedback to the base station by high-speed shared information channel.
13. method according to claim 8 is characterized in that, described user's class of business is that high speed uplink packet inserts, and steps A comprises:
Descending Control Parameter to the descending Control Parameter of the last scheduling of down channel carries out obtaining after the smoothing processing this scheduling obtains these schedule information data and sends these schedule information data to user terminal on the descending absolute acknowledgement channel that strengthens according to described descending Control Parameter;
Schedule information data according to the last time obtain last upload control parameter, line parameter on this is carried out obtaining the upload control parameter that this up channel needs after the smoothing processing, and send described upload control parameter to user terminal by the descending absolute acknowledgement channel that strengthens.
14. method according to claim 8 is characterized in that, described user's class of business is that high speed uplink packet inserts, and also comprises after the steps A:
Receive after data that user terminal sends and the Control Parameter reception condition by this base station of hybrid automatic repeat request indication channel informing user terminal that strengthens.
15. method according to claim 8 is characterized in that, described user's class of business is that high speed uplink packet inserts, and step B comprises:
After user terminal receives described upload control parameter, obtain the schedule information data and on up enhancing dedicated transmission channel, send these schedule information data to the base station according to described upload control parameter;
After user terminal receives described schedule information data, obtain the descending Control Parameter of this scheduling after these data are measured, the user carries out the descending Control Parameter that obtains feeding back after the smoothing processing to described descending Control Parameter, and sends out the descending Control Parameter of feedback to the base station by up enhancing dedicated transmission channel.
16. method according to claim 15, it is characterized in that, described when data to be sent are arranged in the system, user terminal obtains the schedule information data according to the upload control parameter and send these schedule information data on up enhancing dedicated transmission channel also comprising to the base station:
User terminal sends described data to be sent to the base station on up enhancing dedicated transmission channel.
17. method according to claim 15, it is characterized in that, described when not having data to be sent in the system, user terminal obtains the schedule information data according to the upload control parameter and send these schedule information data on up enhancing dedicated transmission channel also comprising to the base station:
User terminal sends the data of once scheduling to the base station on up enhancing dedicated transmission channel.
18. a base station is characterized in that, described base station comprises:
The base station obtains the scheduling control information unit, be used for up, that the last scheduling of down channel is obtained Control Parameter and schedule information data are handled, obtain the Control Parameter and the schedule information data of this scheduling, and this Control Parameter and schedule information data are sent to user terminal by down channel.
19. base station according to claim 18 is characterized in that, described base station obtains the scheduling control information unit and comprises:
The base station up channel obtains the scheduling control information unit, be used for obtaining last upload control parameter according to the schedule information data of up channel last time, and after this upload control parameter carried out smoothing processing, obtain the upload control parameter that this up channel needs, and send described upload control parameter to user terminal;
The base station down channel obtains the scheduling control information unit, be used for the descending Control Parameter of carrying out obtaining after the smoothing processing this scheduling according to the descending Control Parameter of the last scheduling of down channel, obtain these schedule information data and send these schedule information data to user terminal according to described descending Control Parameter.
20. base station according to claim 18 is characterized in that, described base station also comprises:
Trigger scheduling unit, be used to be provided with the condition of dispatched users, and judge whether the user satisfies the condition of described dispatched users.
21. base station according to claim 20 is characterized in that, described triggering scheduling unit comprises:
The schedulable condition unit is set, when being used to be provided with time threshold that reaches setting, the user is not by the condition of base station scheduling as dispatched users, and/or setting is transmitted high-level signaling when the base station to the user, and/or be provided with as the user and carry out up high-level signaling feedback, and/or carry out giving the correct time on the periodic measurement as the condition of dispatched users as the user;
Judge the schedulable condition unit, when being used to judge time threshold that reaches setting, the user is not satisfied the condition of dispatched users by base station scheduling, and/or judge the condition that when the user transmits high-level signaling, satisfies dispatched users when the base station, and/or judge as the user and carry out up high-level signaling feedback, and/or the user carries out giving the correct time on the periodic measurement and satisfies the condition of dispatched users.
22. a user terminal is characterized in that, described user terminal comprises:
Terminal is obtained the scheduling control information unit, be used for Control Parameter and the schedule information data up, this scheduling of down channel that receive are handled, Control Parameter that obtains feeding back and schedule information data, and by up channel with the feedback Control Parameter and schedule information data send to the base station.
23. user terminal according to claim 22 is characterized in that, described terminal is obtained the scheduling control information unit and is comprised:
The terminal up channel obtains the scheduling control information unit, be used to receive the upload control parameter after, obtain the schedule information data and send these schedule information data according to described upload control parameter to the base station;
The terminal down channel obtains the scheduling control information unit, after being used to receive the schedule information data, described data are measured the descending Control Parameter of this scheduling, described descending Control Parameter is carried out obtaining after the smoothing processing the descending Control Parameter that is used to feed back, and send the descending Control Parameter of feedback to the base station.
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