CN103024827B - Method of rate control, base station and the communication system of base station direct connection communication - Google Patents
Method of rate control, base station and the communication system of base station direct connection communication Download PDFInfo
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Abstract
The present invention provides method of rate control, base station and the communication system that a kind of base station direct connection communicates.The method includes that source base station receives purpose base station and sends the message transmission rate of purpose mobile terminal, and the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；According to the message transmission rate of described purpose mobile terminal, source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled.The message transmission rate that source mobile terminal in base station direct connection communication is uploaded can be controlled by technical solution of the present invention, thus base station can be avoided because of the data cached too much problem causing data transmission fails.
Description
Technical field
The present invention relates to communication technology, particularly relate to method of rate control, base station and the communication system of the communication of a kind of base station direct connection.
Background technology
Along with the development of mobile communication technology, the communication requirement between mobile terminal also gets more and more, and such as, carries out the data service communications such as Streaming Media, file-sharing and become the importance of future mobile between mobile terminal.It is currently suggested a kind of base station that directly utilizes as the base station direct connection communication technology carrying out data communication between mobile terminal, specifically, when communicating between two mobile terminals, by setting up the straight-through link between two base stations of community, two mobile terminal places, to utilize the straight-through link between base station to complete the communication between two mobile terminals, so, when carrying out data service communications between mobile terminals, data communication just need not can be completed by the equipment of the core network of wireless communication system, thus reduce the load of equipment of the core network in mobile radio communication, and the efficiency of data communication between mobile terminal can be improved.
In existing base station direct connection communication technology, by source mobile terminal A1 when purpose mobile terminal A2 transmits data, first, data to be sent are sent the source base station B1 to community, mobile terminal A1 place, source by source mobile terminal A1；Then, these data are forwarded to the purpose base station B2 of community, purpose mobile terminal A2 place by source base station B1, and are carried out data buffer storage by purpose base station B2；Finally, purpose base station B2 utilizes the wireless link between itself and purpose mobile terminal A2, and the data of caching are sent to purpose mobile terminal A2.In this manner it is possible to utilize the direct communication between base station, complete the data transmission between mobile terminal, improve the communication efficiency carrying out non-real time service between mobile terminal, avoid using equipment of the core network simultaneously and cause the excessive problem of core network load.
But, in the communication of existing base station direct connection, when the data of caching are transmitted to purpose mobile terminal by purpose base station, wireless link between purpose base station and purpose mobile terminal often can be effected by environmental factors, such as purpose mobile terminal is positioned at the environment that the signal attenuations such as indoor are bigger, or when purpose mobile terminal is positioned at high-speed mobile environment, cause radio link quality poor, make purpose base station relatively low to the speed of purpose mobile terminal transmission data, the data buffer storage amount of purpose base station is bigger, purpose base station is easily caused to cause data to be dropped because of overstocked mass data, or when purpose terminal is because of mobile handoff to other base stations, the transmission resource waste that purpose base station is overstock mass data and caused.
Summary of the invention
The present invention provides method of rate control, base station and the communication system that a kind of base station direct connection communicates, and can effectively overcome the problem causing data to abandon because purpose base station data caching is relatively big in direct communication.
The present invention provides the method for rate control that a kind of base station direct connection communicates, including:
Source base station receives purpose base station and sends the message transmission rate of purpose mobile terminal, and the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
According to the message transmission rate of described purpose mobile terminal, source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled.
The present invention provides the method for rate control of another kind of base station direct connection communication, including:
Purpose base station receives the channel status of purpose mobile terminal reporting, and described channel status includes channel quality indication (CQI) information；
According to described channel quality indication (CQI) information, it is thus achieved that the message transmission rate of described purpose mobile terminal, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
The message transmission rate of described purpose mobile terminal is sent to source base station, it is controlled so that described source base station according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal to described source mobile terminal.
The present invention provides a kind of base station, including:
Purpose moves at terminal speed receiver module, send the message transmission rate of purpose mobile terminal for receiving purpose base station, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
Data transmission control module, for according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled source mobile terminal.
The present invention provides another kind of base station, including:
Channel status receiver module, for receiving the channel status of purpose mobile terminal reporting, described channel status includes channel quality indication (CQI) information；
Purpose mobile terminal speed acquisition module, for according to described channel quality indication (CQI) information, obtaining the message transmission rate of described purpose mobile terminal, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
Speed sending module, for the message transmission rate of described purpose mobile terminal is sent to source base station, it is controlled so that described source base station according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal to described source mobile terminal.
The present invention provides a kind of communication system, it is characterised in that include source base station and purpose base station, wherein, a kind of base station that described source base station provides, the another kind of base station that described purpose base station provides for the present invention for using the invention described above.
The method of rate control of the base station direct connection communication that the embodiment of the present invention provides, base station and communication system, source base station can be based on the message transmission rate between purpose base station and purpose mobile terminal, source mobile terminal is uploaded to source base station send to purpose mobile terminal data transmit be controlled, make the substantial amounts of data that source base station forwards to purpose base station, thus can avoid on purpose base station, because caching sends the problem causing data to abandon to the overabundance of data of purpose mobile terminal, and the transmission resource waste problem that purpose mobile terminal causes because of mobile handoff, accuracy and the reliability of data transmission can be effectively improved.
Accompanying drawing explanation
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 1 provides for the embodiment of the present invention one；
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 2 provides for the embodiment of the present invention two；
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 3 provides for the embodiment of the present invention three；
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 4 provides for the embodiment of the present invention four；
The structural representation of the base station that Fig. 5 provides for the embodiment of the present invention five；
The structural representation of the base station that Fig. 6 provides for the embodiment of the present invention six；
The structural representation of the base station that Fig. 7 provides for the embodiment of the present invention seven；
The structural representation of purpose mobile terminal speed acquisition module in the base station that Fig. 8 provides for the embodiment of the present invention eight；
The structural representation of the communication system that Fig. 9 provides for the embodiment of the present invention nine.
Detailed description of the invention
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 1 provides for the embodiment of the present invention one.The present embodiment is applied in wireless communication system, specifically, when the source mobile terminal in wireless communication system sends data to purpose mobile terminal, and during using between base station straight-through link to carry out data transmission, the data transmission that source mobile terminal can be uploaded by source base station is controlled, as it is shown in figure 1, the present embodiment method can comprise the steps:
Step 101, source base station receive the message transmission rate of purpose mobile terminal that purpose base station sends, the message transmission rate of wireless link between base station and purpose mobile terminal for the purpose of the message transmission rate of this purpose mobile terminal；
Step 102, source base station according to the message transmission rate of purpose mobile terminal, are uploaded to the data transmission procedure that source base station sends to purpose mobile terminal and are controlled source mobile terminal.
In the present embodiment, source mobile terminal in wireless communication system is when purpose mobile terminal sends data, first the data sent to purpose mobile terminal can will be needed to send to source base station, to be sent to purpose mobile terminal data transmission to purpose base station by source base station the most again, and finally again the data of purpose mobile terminal be sent to purpose mobile terminal by purpose base station.When source base station sends data to purpose base station, can be based on the message transmission rate between purpose base station and purpose mobile terminal, source mobile terminal is uploaded to source base station send to purpose mobile terminal data transmit be controlled, the data volume sent to purpose mobile terminal making that source base station forwards will not overstock in a large number at purpose mobile terminal, can be prevented effectively from because radio link quality is poor between purpose base station and purpose mobile terminal, and cause the problem that purpose node B cache has mass data.
It will be understood by those skilled in the art that above-mentioned purpose base station refers in wireless communication system can directly and the base station of purpose communication of mobile terminal, the i.e. base station of communication cell, purpose mobile terminal place；Similarly, source base station refers to the base station of communication cell, mobile terminal place, source.
It will be appreciated by those skilled in the art that, at source base station before purpose base station sends data, can set up straight-through link therebetween, this straight-through link can be to be connected by physics cable and the link of configuration protocol so that can be communicated by this straight-through link between source base station and purpose base station.
It will be understood by those skilled in the art that in wireless communication system, it is to be controlled by base station that mobile terminal uploads the process of data, and the data that source base station can be uploaded at transmitting mobile terminal in real time；Simultaneously, source base station is when the data that the source of reception mobile terminal is uploaded, source base station may be based on the situation of self, the such as transmission situation of the straight-through link between source base station and purpose base station, or the spatial cache of source base station, control the data uploading rate of purpose mobile terminal, it is to avoid source base station caches the data that a large amount of sources mobile terminal is uploaded.
The method of rate control of the base station direct connection communication that the embodiment of the present invention provides, source base station can be based on the message transmission rate between purpose base station and purpose mobile terminal, source mobile terminal is uploaded to source base station send to purpose mobile terminal data transmit be controlled, make that source base station will not forward to purpose base station is substantial amounts of, thus can avoid on purpose base station, because caching sends the problem causing data to abandon to the overabundance of data of purpose mobile terminal, and the transmission resource waste problem that purpose mobile terminal causes because of mobile handoff, accuracy and the reliability of data transmission can be effectively improved.
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 2 provides for the embodiment of the present invention two.In the present embodiment, source base station also can obtain the message transmission rate between source mobile terminal and source base station, so that source base station can message transmission rate based on source mobile terminal and the message transmission rate of purpose mobile terminal that receives, source mobile terminal is uploaded to the data transmission procedure that source base station sends to purpose mobile terminal be controlled, specifically, as in figure 2 it is shown, the present embodiment method of rate control can comprise the steps:
Step 201, source base station receive the message transmission rate of purpose mobile terminal that purpose base station sends, the message transmission rate of wireless link between base station and purpose mobile terminal for the purpose of the message transmission rate of this purpose mobile terminal；
Step 202, source base station obtain the message transmission rate of source mobile terminal, and the message transmission rate of this source mobile terminal is the message transmission rate of the wireless link between source base station and source mobile terminal；
Step 203, source base station judge whether the message transmission rate of source mobile terminal is more than or equal to the message transmission rate of purpose mobile terminal, are then to perform step 205, otherwise, perform step 204；
The data transmission procedure that source mobile terminal is uploaded by step 204, source base station is not controlled, and terminates；
Step 205, source base station are uploaded to the data transmission procedure that source base station sends to purpose mobile terminal and are controlled source mobile terminal.
In the present embodiment, when the message transmission rate of source mobile terminal is more than or equal to the message transmission rate of purpose mobile terminal, communication quality between illustration purpose mobile terminal and purpose base station is worse than the communication quality between source mobile terminal and source base station, if the transmission do not uploaded source mobile terminal is controlled to the data of mobile terminal, so it is possible to cause purpose base station can overstock mass data, ultimately result in data transmission fails, therefore, above-mentioned steps 205 is when the message transmission rate of source mobile terminal is more than or equal to the message transmission rate of purpose mobile terminal, source mobile terminal is uploaded data transmission procedure be controlled, just can be prevented effectively from purpose base station and overstock overabundance of data and the problem that causes data transmission fails.
In the present embodiment, in above-mentioned steps 205, source mobile terminal is uploaded to the data transmission procedure that source base station sends to purpose mobile terminal and is controlled concretely: what source mobile terminal was uploaded to source base station sends the data to purpose mobile terminal, upload with the message transmission rate less than or equal to purpose mobile terminal, so, the data that source mobile terminal is uploaded, the data sent to purpose mobile terminal less than purpose base station, thus purpose base station can be avoided to overstock mass data.
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 3 provides for the embodiment of the present invention three.The executive agent of the present embodiment is the purpose base station in base station direct connection communication, its channel status can uploaded according to purpose mobile terminal, determine the message transmission rate between purpose base station and purpose mobile terminal, specifically, as it is shown on figure 3, the present embodiment method of rate control can comprise the steps:
Step 301, purpose base station receive the channel status of purpose mobile terminal reporting, and this channel status includes channel quality indication (CQI) information；
Step 302, purpose base station are according to channel quality indication (CQI) information, it is thus achieved that the message transmission rate of purpose mobile terminal, the message transmission rate of wireless link between base station and purpose mobile terminal for the purpose of the message transmission rate of this purpose mobile terminal；
The message transmission rate of purpose mobile terminal is sent to source base station by step 303, purpose base station, it is controlled so that source base station according to the message transmission rate of purpose mobile terminal, is uploaded to the data transmission procedure that source base station sends to purpose mobile terminal to source mobile terminal.
The present embodiment can be together with embodiment of the method shown in above-mentioned Fig. 1 or Fig. 2, it is achieved to the control of direct communication between base station, can be prevented effectively from the problem causing data transmission fails because of purpose node B cache overabundance of data.
It will be appreciated by those skilled in the art that, channel quality instruction (ChannelQualityIndicator, CQI) during information is mobile communication system one for representing the information of channel quality, it is in mobile communication system, terminal, the information that i.e. purpose mobile terminal is uploaded, is the numerical value representing channel quality quality.Therefore, the channel conditions of wireless link between purpose base station and purpose mobile terminal is may determine that based on this information, the i.e. message transmission rate of purpose mobile terminal so that source base station can control source mobile terminal upload the transfer rate of data based on the message transmission rate of purpose mobile terminal.
The schematic flow sheet of the method for rate control of the base station direct connection communication that Fig. 4 provides for the embodiment of the present invention four.As shown in Figure 4, the present embodiment method of rate control can comprise the steps:
Step 401, purpose base station receive the channel status of purpose mobile terminal reporting, and this channel status includes channel quality indication (CQI) information；
Step 402, according to the CQI table of storage on this channel indicating information and purpose base station, obtain on each resource element of Resource Block the information bit b of carrying；
Step 403, according on each resource element carrying information bit b, be calculated message transmission rate R of purpose mobile terminal1=b d N G, wherein, number of resource blocks shared by mobile terminal for the purpose of N, G is the fluxion of wireless communication system, and d is the resource element quantity of each Resource Block.
Step 404, by message transmission rate R of purpose mobile terminal1Send to source base station.
Step 405, source base station can use the computational methods identical with the message transmission rate of purpose mobile terminal, obtain message transmission rate R of source mobile terminal2；
Step 406, source base station are according to message transmission rate R of source mobile terminal2Message transmission rate R with purpose mobile terminal1, source mobile terminal is uploaded to the data transmission procedure that source base station sends to purpose mobile terminal and is controlled.
In above-mentioned steps 401 and step 402, the list item that CQI table is stored on base station, each CQI value is corresponding to the information bit of carrying on each resource element of Resource Block, and CQI table is expressed as follows:
| CQI value | Efficiency (information bit of carrying on each resource element of Resource Block) |
| 1 | 0.1523 |
| 2 | 0.2344 |
| 3 | 0.3770 |
| 4 | 0.6016 |
| 5 | 0.8770 |
| 6 | 1.1758 |
| 7 | 1.4766 |
| 8 | 1.9141 |
| 9 | 2.4063 |
| 10 | 2.7305 |
| 11 | 3.3223 |
| 12 | 3.9023 |
| 13 | 4.5234 |
| 14 | 5.1152 |
| 15 | 5.5547 |
It will be appreciated by those skilled in the art that, above-mentioned channel indicating information is exactly CQI value, so search the CQI value with channel indicating information according to the CQI table of storage on base station, search the information bit carried on resource element on Resource Block, thus can determine that the message transmission rate between mobile terminal and base station.
In above-mentioned steps 403, N can be distributed to the quantity of the Resource Block of purpose mobile terminal by the Resource Scheduler on purpose base station；G is the fluxion of wireless communication system, it is simply that refer to the number of independent channel, and in multiple-input, multiple-output (MIMO) system, order instruction (RankIndicator, RI) that the big I of this G is uploaded by purpose mobile terminal determines, and for non-mimo system, this G is equal to 1；It will be understood by those skilled in the art that the calculation of the message transmission rate of above-mentioned wireless link is identical with the message transmission rate mode of the link being conventionally used between calculation base station and terminal, the most too much illustrate at this.
In above-mentioned steps 405, source base station can be after the CQI information that the source mobile terminal of receiving is uploaded, based on the method identical with above-mentioned steps 402 and step 403, obtain the message transmission rate between source mobile terminal and source base station, the i.e. message transmission rate of source mobile terminal.
In above-mentioned steps 406, when source base station receives message transmission rate R of calculated purpose mobile terminal1After, so that it may with message transmission rate R of source mobile terminal2Compare, if R2<R1, then show that the radio link quality between purpose mobile terminal and purpose base station is preferable, it is not necessary to source mobile terminal is uploaded data rate and is controlled, otherwise, work as R2>R1Time, show that the radio link quality of purpose mobile terminal is poor, if the most not controlling the data rate that source mobile terminal is uploaded, arise that the problem that data are overstock in purpose base station, can cause overstocking the data wasting phenomenon in base station when purpose mobile phone users switches, or too much heap volume data and cause loss of data.
The structural representation of the base station that Fig. 5 provides for the embodiment of the present invention five.As it is shown in figure 5, the present embodiment base station can include that purpose moves at terminal speed receiver module 11 and data transmission control module 12, wherein:
Purpose moves at terminal speed receiver module 11, send the message transmission rate of purpose mobile terminal for receiving purpose base station, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
Data transmission control module 12, for according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described base station sends to described purpose mobile terminal and is controlled source mobile terminal.
The present embodiment base station is in wireless communication system, as source mobile terminal when purpose mobile terminal sends data, the base station of communication cell, mobile terminal place, source, i.e. source base station, it can be based on the message transmission rate of purpose mobile terminal, being controlled the data transmission procedure of source mobile terminal transmission to purpose mobile terminal, it implements process and can be found in the explanation of the invention described above embodiment of the method one or two, does not repeats them here.
The structural representation of the base station that Fig. 6 provides for the embodiment of the present invention six.On the basis of above-mentioned embodiment illustrated in fig. 5 technical scheme, in the present embodiment, as shown in Figure 6, the present embodiment base station may also include source mobile terminal speed acquisition module 13, for obtaining the message transmission rate of source mobile terminal, the message transmission rate that message transmission rate is the wireless link between described source base station and source mobile terminal of described source mobile terminal；Correspondingly, data transmission control module 12 specifically can include speed judging unit 121 and data transmission control unit 122, wherein:
Speed judging unit 121, for judging whether the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal；
Data transmission control unit 122, for the message transmission rate of described source mobile terminal more than or equal to the message transmission rate of described purpose mobile terminal time, described source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled.
In the present embodiment, above-mentioned data transmission control unit 122, when being particularly used in the message transmission rate of described source mobile terminal more than or equal to the message transmission rate of described purpose mobile terminal, what described source mobile terminal was uploaded to described source base station sends the data to described purpose mobile terminal, uploads with the message transmission rate less than or equal to described purpose mobile terminal.
The present embodiment can be controlled based on source mobile terminal and the message transmission rate of purpose mobile terminal, the data transmission procedure uploading source mobile terminal, and it implements the explanation that can be found in the invention described above embodiment of the method two, does not repeats them here.
The structural representation of the base station that Fig. 7 provides for the embodiment of the present invention seven.As it is shown in fig. 7, the present embodiment base station can include channel status receiver module 21, purpose mobile terminal speed acquisition module 22 and speed sending module 23, wherein:
Channel status receiver module 21, for receiving the channel status of purpose mobile terminal reporting, described channel status includes channel quality indication (CQI) information；
Purpose mobile terminal speed acquisition module 22, for according to described channel quality indication (CQI) information, obtaining the message transmission rate of described purpose mobile terminal, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
Speed sending module 23, for the message transmission rate of described purpose mobile terminal is sent to source base station, it is controlled so that described source base station according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal to described source mobile terminal.
The present embodiment base station is in wireless communication system, as source mobile terminal when purpose mobile terminal sends data, purpose moves the base station of communication cell, terminal place, i.e. purpose base station, the message transmission rate of purpose mobile terminal can be sent to source base station by it, so that source base station can message transmission rate based on purpose mobile terminal source mobile terminal is uploaded data transmission be controlled, it implements the explanation that can be found in the invention described above embodiment of the method three or four, does not repeats them here.
The structural representation of purpose mobile terminal speed acquisition module in the base station that Fig. 8 provides for the embodiment of the present invention eight.On the basis of above-mentioned embodiment illustrated in fig. 7 technical scheme, as shown in Figure 8, the purpose mobile terminal speed acquisition module 22 in the present embodiment base station specifically can include information bit acquiring unit 221 and purpose mobile terminal speed acquiring unit 222, wherein:
Information bit acquiring unit 221, for according to the channel dial gauge of storage on described channel indicating information and purpose base station, obtains the information bit of carrying on each resource element of Resource Block；
Purpose mobile terminal speed acquiring unit 222, for according to the information bit of carrying on described each resource element, being calculated message transmission rate R of purpose mobile terminal1=b d N G, wherein, number of resource blocks shared by mobile terminal for the purpose of N, G is the fluxion of wireless communication system, and d is the resource element quantity of each Resource Block.
The present embodiment can obtain the message transmission rate of purpose mobile terminal based on channel indicating information, make the source base station as shown in Figure 6 can be based on the message transmission rate of this purpose mobile terminal, determine that source mobile terminal is uploaded to the transmission message transmission rate to purpose mobile terminal of source base station, the data of source mobile terminal are uploaded and is controlled, the concrete calculating process of the message transmission rate of purpose mobile terminal can be found in the explanation of the invention described above embodiment of the method four, does not repeats them here.
The structural representation of the communication system that Fig. 9 provides for the embodiment of the present invention nine.As it is shown in figure 9, the present embodiment communication system can include source base station 10 and purpose base station 20, wherein, source base station 10 is for using the base station shown in Fig. 5 or Fig. 6, and purpose base station is to use the base station shown in Fig. 7 or Fig. 8.
In the present embodiment, when communicating between source mobile terminal 30 with purpose mobile terminal 40, can directly be communicated by the straight-through link between source base station 10 and purpose base station 20, and source base station 10 is when transmitting data to purpose base station 20, can based on purpose base station 20 feedback purpose base station 20 and purpose mobile terminal 40 between message transmission rate, the transmission uploading source mobile terminal is controlled to the data transmission procedure of purpose mobile terminal, wherein, terminal in the communication range of base station 20 for the purpose of described purpose mobile terminal 40, source mobile terminal 30 is the terminal in source base station 10 communication range.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each method embodiment can be completed by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program upon execution, performs to include the step of above-mentioned each method embodiment；And aforesaid storage medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CDs.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the method for rate control of a base station direct connection communication, it is characterised in that including:
Source base station receives purpose base station and sends the message transmission rate of purpose mobile terminal, and the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
According to the message transmission rate of described purpose mobile terminal, source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled；
Also include:
The message transmission rate of acquisition source mobile terminal, the message transmission rate that message transmission rate is the wireless link between described source base station and source mobile terminal of described source mobile terminal；
The described message transmission rate according to described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled including source mobile terminal:
Judge whether the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal；
When the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal, described source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled.
The method of rate control of base station direct connection the most according to claim 1 communication, it is characterised in that described described source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal is controlled including:
What described source mobile terminal was uploaded to described source base station sends the data to described purpose mobile terminal, uploads with the message transmission rate less than or equal to described purpose mobile terminal.
3. the method for rate control of a base station direct connection communication, it is characterised in that including:
Purpose base station receives the channel status of purpose mobile terminal reporting, and described channel status includes channel quality indication (CQI) information；
According to described channel quality indication (CQI) information, it is thus achieved that the message transmission rate of described purpose mobile terminal, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
The message transmission rate of described purpose mobile terminal is sent to source base station, it is controlled so that described source base station according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal to source mobile terminal；
Wherein, described source base station according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled including source mobile terminal:
Judge whether the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal；
When the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal, described source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled.
The method of rate control of base station direct connection the most according to claim 3 communication, it is characterised in that described according to described channel quality indication (CQI) information, it is thus achieved that the message transmission rate of described purpose mobile terminal includes:
According to the channel dial gauge of storage on described channel indicating information and purpose base station, obtain the information bit of carrying on each resource element of Resource Block；
According to the information bit of carrying on described each resource element, it is calculated message transmission rate R of purpose mobile terminal1=b d N G, wherein, b is the information bit of carrying on each resource element, and number of resource blocks shared by mobile terminal for the purpose of N, G is the fluxion of wireless communication system, and d is the resource element quantity of each Resource Block.
5. a base station, it is characterised in that including:
Purpose moves at terminal speed receiver module, send the message transmission rate of purpose mobile terminal for receiving purpose base station, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
Data transmission control module, for according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described base station sends to described purpose mobile terminal and is controlled source mobile terminal；
Also include:
Source mobile terminal speed acquisition module, for obtaining the message transmission rate of source mobile terminal, the message transmission rate that message transmission rate is the wireless link between source base station and source mobile terminal of described source mobile terminal；
Described data transmission control module includes:
Speed judging unit, for judging whether the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal；
Data transmission control unit, for the message transmission rate of described source mobile terminal more than or equal to the message transmission rate of described purpose mobile terminal time, described source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled.
Base station the most according to claim 5, it is characterized in that, described data transmission control unit, when message transmission rate specifically for described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal, what described source mobile terminal was uploaded to described source base station sends the data to described purpose mobile terminal, uploads with the message transmission rate less than or equal to described purpose mobile terminal.
7. a base station, it is characterised in that including:
Channel status receiver module, for receiving the channel status of purpose mobile terminal reporting, described channel status includes channel quality indication (CQI) information；
Purpose mobile terminal speed acquisition module, for according to described channel quality indication (CQI) information, obtaining the message transmission rate of described purpose mobile terminal, the message transmission rate of described purpose mobile terminal is the message transmission rate of the wireless link between described purpose base station and purpose mobile terminal；
Speed sending module, for the message transmission rate of described purpose mobile terminal is sent to source base station, it is controlled so that described source base station according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal to source mobile terminal；
Wherein, described source base station according to the message transmission rate of described purpose mobile terminal, is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled including source mobile terminal:
Judge whether the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal；
When the message transmission rate of described source mobile terminal is more than or equal to the message transmission rate of described purpose mobile terminal, described source mobile terminal is uploaded to the data transmission procedure that described source base station sends to described purpose mobile terminal and is controlled.
Base station the most according to claim 7, it is characterised in that described purpose mobile terminal speed acquisition module includes:
Information bit acquiring unit, for according to the channel dial gauge of storage on described channel indicating information and purpose base station, obtains the information bit of carrying on each resource element of Resource Block；
Purpose mobile terminal speed acquiring unit, for according to the information bit of carrying on described each resource element, being calculated message transmission rate R of purpose mobile terminal1=b d N G, wherein, b is the information bit of carrying on each resource element, and number of resource blocks shared by mobile terminal for the purpose of N, G is the fluxion of wireless communication system, and d is the resource element quantity of each Resource Block.
9. a communication system, it is characterised in that including source base station and purpose base station, wherein, described source base station is to use the base station described in claim 5 or 6, and described purpose base station is to use the base station described in claim 7 or 8.
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