Embodiment
Below in conjunction with the accompanying drawing in the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
The embodiment of the present invention one provides a kind of transmission method of ACK/NACK information, based on the PDSCH uplink feedback technology of LTE system and the requirement of consensus standard, with business demand that is high for real-time and low time delay, propose a kind of processing method of the reduction service delay based on pre-scheduling mechanism, thus meet the business need of low time delay, as shown in Figure 1, the method comprises the following steps:
Step 101, base station equipment obtains type of service corresponding to terminal equipment.
Step 102, when the type of service that terminal equipment is corresponding is specified services type, base station equipment sends the schedule information for sub-frame of uplink to terminal equipment.It should be noted that in the type of service that terminal equipment is corresponding it is not, when specifying type of service, repeat no more in corresponding processing mode the present embodiment.
In the embodiment of the present invention, this specified services type specifically includes but not limited to: require that time delay is less than the type of service of predetermined threshold value; In actual applications, a kind of preferred predetermined threshold value is 10ms; Be less than the type of service of predetermined threshold value for time delay, its real-time that can meet the demands is high and require the demand of low time delay; Such as, web page browsing, visual telephone, namely take the photograph namely pass etc.
Step 103, terminal equipment, after receiving the schedule information for sub-frame of uplink, sends ACK/NACK information by PUSCH to base station equipment.
It should be noted that, if the schedule information for sub-frame of uplink that terminal equipment As-received station equipment sends, then illustrate to there is up PUSCH business, after now terminal equipment needs ACK/NACK information and upstream data to encode respectively, and by PUSCH to base station equipment multiplexing transmission ACK/NACK information and upstream data; If the schedule information for sub-frame of uplink that the non-As-received station equipment of terminal equipment sends, then illustrate there is not up PUSCH business, now terminal equipment needs in this sub-frame of uplink, use special PUCCH transferring ACK/nack message.
Based on this, in the embodiment of the present invention, for specified services type (as web page browsing, visual telephone, namely take the photograph and namely to pass etc. that to there is real-time high, the traffic performance of low time delay), base station equipment is by sending the schedule information for sub-frame of uplink to terminal equipment, make terminal equipment can As-received station equipment send the schedule information for sub-frame of uplink, then by PUSCH to base station equipment transferring ACK/nack message, overcome the time Holding Problem existed when using PUCCH periodic feedback ACK/NACK information, can feeding back ACK/nack message in time, meet the requirement of the low time delay business utilizing LTE technology to carry out.
In the embodiment of the present invention, according to service needed dynamic conditioning pre-scheduling switch, to revise the uplink feedback mode of terminal equipment in real time, feedback latencies can be reduced; Based on this, base station equipment sends to terminal equipment and comprises for the schedule information of sub-frame of uplink: base station equipment is after knowing that type of service that terminal equipment is corresponding is specified services type, for pre-scheduling switch opened by terminal equipment, and after pre-scheduling switch open, base station equipment sends the schedule information for sub-frame of uplink to terminal equipment.
In the embodiment of the present invention, pre-scheduling traffic carrying capacity size can be dynamically arranged according to the priority height of terminal equipment, and then ensure that the terminal equipment that priority is high can minimize service delay; Based on this, described method comprises further: the base station equipment priority corresponding according to terminal equipment is that terminal equipment arranges pre-scheduling traffic carrying capacity, and priority corresponding to terminal equipment is higher, then pre-scheduling traffic carrying capacity is larger; And this base station equipment when sending the schedule information for sub-frame of uplink to this terminal equipment, then carries the pre-scheduling traffic carrying capacity of setting in this schedule information; And by terminal equipment after receiving the schedule information for sub-frame of uplink, utilize the pre-scheduling traffic carrying capacity arranged to send ACK/NACK information to base station equipment.
Concrete, the base station equipment priority corresponding according to terminal equipment is that terminal equipment arranges pre-scheduling traffic carrying capacity and comprises: base station equipment is after knowing that type of service that terminal equipment is corresponding is specified services type, for pre-scheduling switch opened by terminal equipment, and after pre-scheduling switch open, the priority corresponding according to terminal equipment is that terminal equipment arranges pre-scheduling traffic carrying capacity.
In sum, in the embodiment of the present invention, when can avoid terminal equipment based on PUCCH channel cycle feeding back ACK/nack message, if the feedback moment is not some cycle time of PUCCH setting, then need the situation of continuous wait, thus solve terminal equipment cannot feeding back ACK/nack message in time, and then the poor real brought, the problems such as service delay is high.
Base station equipment passes through the size of dynamic conditioning pre-scheduling switch and pre-scheduling traffic carrying capacity, the terminal equipment of real-time ensuring different priorities can have and lasting carry out PUSCH scheduling, thus without prejudice under the prerequisite of consensus standard, make terminal equipment can on PUSCH channel timely feeding back ACK/nack message, and then meet such as web page browsing, visual telephone, namely take the photograph business needs to low time delay such as namely passing.
Consider from specific implementation, the technical scheme that the embodiment of the present invention provides does not relate to distorting of privately owned interface message of eating dishes without rice or wine, and arranging of pre-scheduling switch realizes simply, to DSP(Digital Signal Processing, Digital Signal Processing) process and can not form load, do not affect the demodulation coding performance of base station equipment and terminal equipment, the treating capacity of the program is little, complexity is low, realizes simple.
Embodiment two
The embodiment of the present invention two provides a kind of transmission method of ACK/NACK information, by arranging pre-scheduling switch to the terminal equipment of new access network, (this pre-scheduling switch is before and after community is set up, all come into force before and after terminal equipment access) and the size of pre-scheduling traffic carrying capacity, and real-time On/Off pre-scheduling switch, thus ensure that terminal equipment can receive the schedule information to current sub-frame of uplink of base station equipment transmission all the time, further guarantee terminal equipment is to the timely feedback of ACK/NACK information, need not some cycle time of latent period PUCCH, reduce the stand-by period, meet the requirement of real-time of business.
As shown in Figure 2, the transmission method of this ACK/NACK information can comprise the following steps:
Step 201, terminal equipment successfully accesses LTE network, sets up multiple service bearer.
Step 202, base station equipment is that terminal equipment arranges pre-scheduling switch, and opens pre-scheduling switch according to type of service or close pre-scheduling switch.Wherein, when the type of service that terminal equipment is corresponding is specified services type, then base station equipment is that pre-scheduling switch opened by terminal equipment; When the type of service that terminal equipment is corresponding is not when specifying type of service, then base station equipment is that pre-scheduling switch closed by terminal equipment.
In the embodiment of the present invention, if the current application carried out of terminal equipment such as web page browsing, visual telephone, namely take the photograph namely to pass etc. and there is the business need (i.e. specified services type) of the high and low time delay of real-time, then open pre-scheduling switch, to ensure the schedule information to current sub-frame of uplink of terminal equipment As-received station equipment transmission all the time, thus ensure that the ACK/NACK information of terminal equipment is fed back in time on PUSCH channel.
It should be noted that, if pre-scheduling switch is closed, then need on the control software design of base station equipment, arrange the corresponding PUCCH feedback time cycle, now can not ensure the schedule information to current sub-frame of uplink of terminal equipment As-received station equipment transmission all the time, and can not ensure that the ACK/NACK information of terminal equipment is fed back in time on PUSCH channel; In this case, terminal equipment can carry out feeding back ACK/nack message by PUCCH, namely cannot ensure the business need of the high and low time delay of real-time.
In the embodiment of the present invention, carry out follow-up explanation to open pre-scheduling switch, then the method can also comprise the following steps:
Step 203, the base station equipment priority corresponding according to terminal equipment is that terminal equipment arranges pre-scheduling traffic carrying capacity, and priority corresponding to terminal equipment is higher, then pre-scheduling traffic carrying capacity is larger.
In the embodiment of the present invention, when arranging corresponding pre-scheduling traffic carrying capacity according to the height of priority corresponding to terminal equipment, if terminal equipment is the terminal equipment of high priority, then open high traffic pre-scheduling; If terminal equipment is the terminal equipment of low priority, then open little traffic carrying capacity pre-scheduling.
It should be noted that, pre-scheduling traffic carrying capacity settings larger (this value according to 3GPP TS36.213 protocol between 0 ~ 63), then the resource of terminal equipment single distribution is more, and the propagation delay time of big data quantity uplink packet is less, and namely the propagation delay time of ACK/NACK information is less.
Step 204, base station equipment sends the schedule information for sub-frame of uplink to terminal equipment, and carries the pre-scheduling traffic carrying capacity of setting in this schedule information.Wherein, terminal equipment, after receiving the schedule information for sub-frame of uplink, sends ACK/NACK information by PUSCH to base station equipment.
It should be noted that terminal equipment is when opening pre-scheduling switch, will by PUSCH channel to base station equipment feeding back ACK/nack message; Terminal equipment, will by PUCCH channel to base station equipment feeding back ACK/nack message when closing pre-scheduling switch.
In sum, in the embodiment of the present invention, when can avoid terminal equipment based on PUCCH channel cycle feeding back ACK/nack message, if the feedback moment is not some cycle time of PUCCH setting, then need the situation of continuous wait, thus solve terminal equipment cannot feeding back ACK/nack message in time, and then the poor real brought, the problems such as service delay is high.Base station equipment passes through the size of dynamic conditioning pre-scheduling switch and pre-scheduling traffic carrying capacity, the terminal equipment of real-time ensuring different priorities can have and lasting carry out PUSCH scheduling, thus without prejudice under the prerequisite of consensus standard, make terminal equipment can on PUSCH channel timely feeding back ACK/nack message, and then meet such as web page browsing, visual telephone, namely take the photograph business needs to low time delay such as namely passing.Consider from specific implementation, the technical scheme that the embodiment of the present invention provides does not relate to distorting of privately owned interface message of eating dishes without rice or wine, and arranging of pre-scheduling switch realizes simply, load can not be formed to DSP process, the demodulation coding performance of base station equipment and terminal equipment is not affected, the treating capacity of the program is little, and complexity is low, realizes simple.
Embodiment three
Based on the inventive concept same with said method, additionally provide a kind of base station equipment in the embodiment of the present invention, as shown in Figure 3, this base station equipment comprises:
Obtain module 11, for obtaining type of service corresponding to terminal equipment;
Sending module 12, when being specified services type for the type of service corresponding at terminal equipment, sends the schedule information for sub-frame of uplink to described terminal equipment;
By described terminal equipment receive described for the schedule information of sub-frame of uplink after, send positive acknowledgement ACK/ Negative Acknowledgement nack message by Physical Uplink Shared Channel PUSCH to described base station equipment.
Described sending module 12, specifically for after knowing that type of service that terminal equipment is corresponding is specified services type, for pre-scheduling switch opened by described terminal equipment, and after described pre-scheduling switch open, send the schedule information for sub-frame of uplink to described terminal equipment.
In the embodiment of the present invention, this base station equipment also comprises: arrange module 13, is that described terminal equipment arranges pre-scheduling traffic carrying capacity for the priority corresponding according to described terminal equipment; The priority that described terminal equipment is corresponding is higher, and described pre-scheduling traffic carrying capacity is larger;
Described sending module 12, when sending the schedule information for sub-frame of uplink to described terminal equipment, carries the pre-scheduling traffic carrying capacity of described setting in described schedule information;
By described terminal equipment receive described for the schedule information of sub-frame of uplink after, utilize the pre-scheduling traffic carrying capacity of described setting to send ACK/NACK information to described base station equipment.
Described module 13 is set, specifically for after knowing that type of service that terminal equipment is corresponding is specified services type, for pre-scheduling switch opened by described terminal equipment, and after described pre-scheduling switch open, the priority corresponding according to described terminal equipment is that described terminal equipment arranges pre-scheduling traffic carrying capacity.
In the embodiment of the present invention, described specified services type is specially: require that time delay is less than the type of service of predetermined threshold value.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.