CN102264112B - Method and device for sending data - Google Patents
Method and device for sending data Download PDFInfo
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- CN102264112B CN102264112B CN201010192294.4A CN201010192294A CN102264112B CN 102264112 B CN102264112 B CN 102264112B CN 201010192294 A CN201010192294 A CN 201010192294A CN 102264112 B CN102264112 B CN 102264112B
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Abstract
The embodiment of the invention relates to the technical field of radio communication, in particular to a method and a device for sending data, which are used for solving the problem that the switching rate is reduced due to the possibility of incapability of sending a large quantity of data cached in a base station to a terminal because a radio network controller (RNC) determines the volume of the data transmitted to the base station according to the volume reported by the base station in the switching process existing in the prior art. The method comprises the following steps of: determining the maximum value of the data volume of service data which are sent to a source base station within the switching duration according to a downlink average rate of the service data which are transmitted in a null interface; and sending the service data to the source base station within the switching duration according to the maximum value of the determined data volume. The maximum value of the data volume of the sent service data is determined according to the downlink average rate, and the data which are cached in the base station and cannot be sent to the terminal are reduced, so that the switching rate is improved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method and apparatus that sends data.
Background technology
The data of HSDPA (High Speed Downlink Packet Access, high speed downlink packet access) business are to carry out flexible dispatching transmission by Node B (base station).Because be high speed business, in order to guarantee the timely transmission with data that makes full use of of interface-free resources, the data that base station need to issue RNC (Radio NetworkController, radio network controller) are carried out buffer memory.On Iub interface, the data that base station issues RNC by flow-control mechanism are controlled.
When switch minizone in base station, can carry out data cached transfer by base station, to reach the object of avoiding loss of data.But in switchover procedure between base station, because the buffered data in base station is lost completely, RLC (Radio Link Control, the wireless link is controlled) layer that therefore need to rise to RNC is retransmitted the data of recovering this part loss.
In current agreement, stipulate, the capacity that RNC reports according to base station determines to be issued to the data volume of base station.When switching between base station, if the capacity that RNC reports according to base station sends data to base station, because the transmission rate of eating dishes without rice or wine declines, likely occur that the mass data of base station buffer memory cannot send to terminal in handoff procedure, thereby cause handoff procedure speed to decline.
In sum, at present in handoff procedure, the capacity reporting according to base station due to RNC determines to be issued to the data volume of base station, likely occurs that the mass data of base station buffer memory cannot send to terminal, thereby has reduced switching rate.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus that sends data, in order to solve in prior art, exist in handoff procedure, the capacity reporting according to base station due to RNC determines to be issued to the data volume of base station, the mass data that likely occurs base station buffer memory cannot send to terminal, thereby reduces the problem of switching rate.
A kind of method that sends data that the embodiment of the present invention provides, the method comprises:
According to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, determine the maximum that continues to send to source base station in duration the data volume of this business datum switching;
According to the maximum of determining amount of data, in switching lasting duration, to described source base station, send business datum.
The maximum of described specified data amount comprises:
Described descending Mean Speed is multiplied by described switching and continues duration, the numerical value obtaining after multiplying each other is as the maximum of data volume.
The maximum of described specified data amount comprises:
Described descending Mean Speed is multiplied by described switching and continues duration, and the numerical value obtaining after multiplying each other and the redundant data amount setting in advance are added, the numerical value obtaining after being added is as the maximum of data volume.
The start time point that described switching continues duration is to the terminal of needs switching, to send the time point of radio bearer reconfigure command;
The end time point that described switching continues duration is that described terminal starts the time point switching to target BS.
If before the lasting duration of switching finishes, the data volume of the business datum of transmission has reached maximum, stops sending business datum.
A kind of network equipment that the embodiment of the present invention provides, this network equipment comprises:
Determination module, for according to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, determines the maximum that continues to send to source base station in duration the data volume of this business datum switching;
Sending module for according to the maximum of determining amount of data, sends business datum to described source base station in switching lasting duration.
Described determination module specifically for:
Described descending Mean Speed is multiplied by described switching and continues duration, the numerical value obtaining after multiplying each other is as the maximum of data volume.
Described determination module specifically for:
Described descending Mean Speed is multiplied by described switching and continues duration, and the numerical value obtaining after multiplying each other and the redundant data amount setting in advance are added, the numerical value obtaining after being added is as the maximum of data volume.
The start time point that described switching continues duration is to the terminal of needs switching, to send the time point of radio bearer reconfigure command;
The end time point that described switching continues duration is that described terminal starts the time point switching to target BS.
Described sending module also for:
If before the lasting duration of switching finishes, the data volume of the business datum of transmission has reached maximum, stops sending business datum.
The embodiment of the present invention is according to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, determine the maximum that continues to send to source base station in duration the data volume of this business datum switching, and according to the maximum of determining amount of data, in switching lasting duration, to described source base station, send business datum.Owing to determining according to descending Mean Speed, reduced the maximum of the data volume that sends business datum base station buffer memory and cannot send to the data of terminal, thereby improved switching rate;
Further, the embodiment of the present invention is in guaranteeing handoff procedure, base station data amount is full in the situation that, the data that base station buffer memory cannot send to terminal have been reduced, and then the data volume that retransmits of the rlc layer that has reduced RNC, guarantee the steady of handoff procedure medium-rate, improve utilization rate of air interface resource, improve the service quality of handoff procedure.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention network equipment;
Fig. 2 is the method flow schematic diagram that the embodiment of the present invention sends data;
Fig. 3 is the method flow schematic diagram that the embodiment of the present invention is switched.
Embodiment
The embodiment of the present invention is according to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, determine the maximum that continues to send to source base station in duration the data volume of this business datum switching, and according to the maximum of determining amount of data, in switching lasting duration, to source base station, send business datum.Owing to determining according to descending Mean Speed, reduced the maximum of the data volume that sends business datum base station buffer memory and cannot send to the data of terminal, thereby improved switching rate.
Wherein, the business of the embodiment of the present invention can be HSDPA business, can be also that other need to dispatch the high speed business sending by base station.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 1, the network equipment of the embodiment of the present invention comprises: determination module 10 and sending module 20.
Sending module 20 for according to the maximum of determination module 10 determining amount of data, sends business datum to source base station in switching lasting duration.
Wherein, the mode that determination module 10 carries out descending Mean Speed measuring and calculating has a variety of: such as sampling in a period of time, sampled point is weighted to the modes such as average.
The start time point that switches lasting duration is to the terminal of needs switching, to send the time point of radio bearer reconfigure command; The end time point that switches lasting duration is that terminal starts the time point switching to target BS, the activation moments carrying in radio bearer reconfigure command.
Concrete, implement in implementation process, determination module 10 can be multiplied by descending Mean Speed to switch and continue duration, and the numerical value obtaining after multiplying each other is as the maximum of data volume.
Measuring and calculating due to descending Mean Speed, with the actual momentary rate of eating dishes without rice or wine, not necessarily can mate completely, may cause the maximum of the data volume calculated according to descending Mean Speed less than normal, the data volume that may occur like this business datum that sending module 20 sends to base station is full not, make to continue duration in switching and also do not finish, base station just all sends to terminal by all business datums of receiving.Preferably, determination module 10 can be according to descending Mean Speed and redundant data amount, the maximum of specified data amount.
Concrete, determination module 10 is multiplied by descending Mean Speed to switch and continues duration, and the numerical value obtaining after multiplying each other and the redundant data amount setting in advance are added, and the numerical value obtaining after being added is as the maximum of data volume.
Redundant data amount to switch with on actual speed rate relevant, can according to test data, set in the network optimization stage.
In specific implementation process, redundant data amount can be upgraded according to the variation of actual environment, that is to say, switching neither be fixed with corresponding redundant data amount, can upgrade.Accordingly, determination module 10 is determined current redundant data amount corresponding to switching band that terminal is switched, and by the quotient obtaining and definite redundant data amount addition, the numerical value obtaining is as the maximum of data volume.
Due to according to the maximum of descending Mean Speed and redundant data amount specified data amount, thereby can further improve switching rate, guarantee that base station can obtain fuller business datum.
In force, if before the lasting duration of switching finishes, the data volume of the business datum of transmission has reached maximum, and sending module 20 stops sending business datum.
Wherein, the network equipment of the embodiment of the present invention can be RNC, can be also other high-level device, can also be new network equipment.
As shown in Figure 2, the method for embodiment of the present invention transmission data comprises the following steps:
Wherein, the mode of carrying out descending Mean Speed measuring and calculating has a variety of: such as sampling in a period of time, sampled point is weighted to the modes such as average.
The start time point that switches lasting duration is to the terminal of needs switching, to send the time point of radio bearer reconfigure command; The end time point that switches lasting duration is that terminal starts the time point switching to target BS, the activation moments of the configuration of carrying in radio bearer reconfigure command.
In step 201, descending Mean Speed can be multiplied by and switch lasting duration, the numerical value obtaining after multiplying each other is as the maximum of data volume.
Measuring and calculating due to descending Mean Speed, with the actual momentary rate of eating dishes without rice or wine, not necessarily can mate completely, may cause the maximum of the data volume calculated according to descending Mean Speed less than normal, the data volume that may occur like this business datum that sends to base station is full not, make to continue duration in switching and also do not finish, base station just all sends to terminal by all business datums of receiving.Preferably, can be according to descending Mean Speed and redundant data amount, the maximum of specified data amount.
Concrete, in step 201, descending Mean Speed being multiplied by and switching lasting duration, and the numerical value obtaining after multiplying each other and the redundant data amount setting in advance are added, the numerical value obtaining after being added is as the maximum of data volume.
Redundant data amount to switch with on actual speed rate relevant, can according to test data, set in the network optimization stage.
In specific implementation process, redundant data amount can be upgraded according to the variation of actual environment, that is to say, switching neither be fixed with corresponding redundant data amount, can upgrade.Accordingly, in step 201, determine current redundant data amount corresponding to switching band that terminal is switched, and the quotient obtaining and definite redundant data amount are added, the numerical value obtaining is as the maximum of data volume.
In step 201, can be at every turn all according to the maximum of descending Mean Speed and redundant data amount specified data amount.For switching with on higher speed (needing redundant data amount), redundant data amount has concrete numerical value; For switching with on lower speed (not needing redundant data amount), redundant data amount can be 0.
Due to according to the maximum of descending Mean Speed and redundant data amount specified data amount, thereby can further improve switching rate, guarantee that base station can obtain fuller business datum.
In step 202, if before the lasting duration of switching finishes, the data volume of the business datum of transmission has reached maximum, stops sending business datum.
As shown in Figure 3, the method that the embodiment of the present invention is switched comprises the following steps:
Step 301, terminal send measurement report (MEASUREMENT REPORT) to RNC.
Step 302, RNC send wireless link request (RADIO LINK SETUPREQUEST) message to target BS.
Step 303, target BS send wireless link response (RADIO LINK SETUPRESPONSE) message to RNC.
Step 304, RNC send the radio bearer reconfigure command (RADIO BEARER RECONFIGURATION) of the activation moments that carries new configuration to terminal, indicating terminal brings into use new configuration to switch to target BS at activation moments.
Step 305, RNC, according to the maximum of determining amount of data, send business datum by HS-DSCH (High Speed Downlink Shared Channel, high-speed downlink shared channel) to source base station in switching lasting duration.
Wherein, RNC can be after step 301, and any moment before step 305, according to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, is determined in switching lasting duration and by HS-DSCH, to source base station, sends the maximum of the data volume of this business datum.
Step 306, after activation moments reaches, RNC continue to send business datum (HS-DSCH DATA FLOW) to target BS.
Step 307, terminal send radio bearer to RNC and confirm successfully (RADIO BEARERRECONFIGURATION COMPLETE) message.
Step 308, RNC send wireless link removal request (RADIO LINK DELETIONREQUEST) message to source base station.
Step 309, source base station send wireless link to RNC and delete response (RADIO LINKDELETION RESPONSE) message.
By in step 304, the radio bearer reconfigure command that RNC sends to terminal the activation moments that carries new configuration is as T1, using the activation moments in message as T2 constantly.
From data transmission timing, can find out, between T1 and T2, during this period of time, RNC need to continue data to send to source base station, and now source base station can normally send data to terminal, and terminal also can normally receive.
From T2 constantly, terminal starts to switch to target BS, now the data of source base station buffer memory cannot send to terminal, this part data will be lost completely.The recovery of this part data, needs RNC to rely on the retransmission mechanism of rlc layer to complete.
RNC at T1 to determining and need to send to source base station the quantity maximum of data in the time of T2, to guarantee that source base station at T2 constantly, complete as far as possible the data dispatch of self buffer memory, under the sufficient prerequisite of handoff procedure data volume, the loss of the minimizing data of maximum possible.
Further, RNC in the lasting time, measures the descending Mean Speed of this business in business in service surface.Maximum=the Mean Speed of data volume * (T2-T1); Preferably, the maximum=Mean Speed of data volume * (T2-T1)+redundant data amount.
Before T2 arrives constantly, if RNC sends data while having reached the data volume that assessment can send, RNC stops sending data to source base station automatically.After T2 arrives constantly, the normal log-on data process of transmitting of RNC, starts to carry out data transmission to target BS.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
From above-described embodiment, can find out: the embodiment of the present invention, according to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, is determined the maximum that continues to send to source base station in duration the data volume of this business datum switching; According to the maximum of determining amount of data, in switching lasting duration, to source base station, send business datum.
Owing to determining according to descending Mean Speed, reduced the maximum of the data volume that sends business datum base station buffer memory and cannot send to the data of terminal, thereby improved switching rate;
Further, the embodiment of the present invention is in guaranteeing handoff procedure, base station data amount is full in the situation that, the data that base station buffer memory cannot send to terminal have been reduced, and then the data volume that retransmits of the rlc layer that has reduced RNC, guarantee the steady of handoff procedure medium-rate, improve utilization rate of air interface resource, improve the service quality of handoff procedure.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (6)
1. a method that sends data, is characterized in that, the method comprises:
According to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, determine the maximum that continues to send to source base station in duration the data volume of this business datum switching;
According to the maximum of determining amount of data, in switching lasting duration, to described source base station, send business datum;
The maximum of described specified data amount comprises: described descending Mean Speed is multiplied by described switching and continues duration, the numerical value obtaining after multiplying each other is as the maximum of data volume; Or,
The maximum of described specified data amount comprises: described descending Mean Speed is multiplied by described switching and continues duration, and the numerical value obtaining after multiplying each other and the redundant data amount setting in advance are added, the numerical value obtaining after being added is as the maximum of data volume.
2. the method for claim 1, is characterized in that, the start time point that described switching continues duration is to the terminal of needs switching, to send the time point of radio bearer reconfigure command;
The end time point that described switching continues duration is that described terminal starts the time point switching to target BS.
3. the method for claim 1, is characterized in that, if before the lasting duration of switching finishes, the data volume of the business datum of transmission has reached maximum, stops sending business datum.
4. a network equipment, is characterized in that, this network equipment comprises:
Determination module, for according to the descending Mean Speed at the service data transmission of eating dishes without rice or wine, determines the maximum that continues to send to source base station in duration the data volume of this business datum switching;
Sending module for according to the maximum of determining amount of data, sends business datum to described source base station in switching lasting duration;
Described determination module specifically for: described descending Mean Speed is multiplied by described switching and continues duration, the numerical value obtaining after multiplying each other is as the maximum of data volume; Or,
Described determination module specifically for: described descending Mean Speed is multiplied by described switching and continues duration, and the numerical value obtaining after multiplying each other and the redundant data amount setting in advance are added, the numerical value obtaining after being added is as the maximum of data volume.
5. network equipment as claimed in claim 4, is characterized in that, the start time point that described switching continues duration is to the terminal of needs switching, to send the time point of radio bearer reconfigure command;
The end time point that described switching continues duration is that described terminal starts the time point switching to target BS.
6. network equipment as claimed in claim 4, is characterized in that, described sending module also for:
If before the lasting duration of switching finishes, the data volume of the business datum of transmission has reached maximum, stops sending business datum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010192294.4A CN102264112B (en) | 2010-05-26 | 2010-05-26 | Method and device for sending data |
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| CN201010192294.4A CN102264112B (en) | 2010-05-26 | 2010-05-26 | Method and device for sending data |
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| CN102264112A CN102264112A (en) | 2011-11-30 |
| CN102264112B true CN102264112B (en) | 2014-03-12 |
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| CN106993313A (en) * | 2016-01-21 | 2017-07-28 | 中兴通讯股份有限公司 | A kind of method for realizing carrying switching and terminal and base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010035838A1 (en) * | 2008-09-29 | 2010-04-01 | シャープ株式会社 | Liquid application method |
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| CN1305268A (en) * | 1999-12-14 | 2001-07-25 | 日本电气株式会社 | Portable information terminal |
| CN1848707A (en) * | 2005-04-14 | 2006-10-18 | 华为技术有限公司 | Adaptive bandwidth regulating method for block data business |
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