CN101969669A

CN101969669A - Method, system and device for adjusting data volume

Info

Publication number: CN101969669A
Application number: CN2009100898837A
Authority: CN
Inventors: 谌丽; 鲍炜; 刘佳敏
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2009-07-27
Filing date: 2009-07-27
Publication date: 2011-02-09
Anticipated expiration: 2029-07-27
Also published as: CN101969669B

Abstract

The embodiment of the invention relates to the wireless communication technology, in particular to a method, system and device for adjusting data volume, aiming to solve the problem of the prior art that after the relay-node (RN) is introduced in a long term evolution-advanced (LTE-A) system, DeNB is difficult to control downlink data volume so that the congestion of the downlink data of the RN device and the delay of the downlink data of R-UE are easy to cause. The method of the embodiment of the invention comprises the following steps: the RN device determines traffic scheduling parameter according to the volume of the downlink cache data; the RN device sends the traffic scheduling parameter to a base station and requests the base station to adjust the data volume of the downlink backhaul link according to the traffic scheduling parameter. By adopting the method of the embodiment of the invention, the delay of the downlink data can be reduced and the efficiency of data transmission and the system performance can be increased.

Description

A kind of mthods, systems and devices of adjusting data volume

Technical field

The present invention relates to wireless communication technology, particularly a kind of mthods, systems and devices of adjusting data volume.

Background technology

LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) system has defined with lower node, interface and link after introducing Relay (relaying) node, as shown in Figure 1,

Node comprises:

Donor-eNB: with RN equipment the eNB of wireless connections is arranged, be abbreviated as DeNB;

Relay-Node: be present in the entity between DeNB and the UE, be abbreviated as RN equipment;

Relay-UE: the UE with RN equipment carries out data interaction is abbreviated as R-UE;

Grand UE: directly and the DeNB UE that carries out data interaction.

Interface comprises:

Un interface: the interface between RN equipment and the DeNB;

Interface between Uu interface: UE and the RN equipment.

Radio Link comprises:

Backhaul link: back haul link, with Un interface link corresponding;

Access link: access link, with Uu interface link corresponding;

Direct link: the direct projection link, DeNB and grand UE carry out the link of transfer of data.

Downlink transfer behind the introducing RN equipment: the data that arrive UE under the RN equipment need send to RN equipment through descending back haul link by DeNB, send to UE by RN equipment through descending access link again.

Uplink behind the introducing RN equipment: the uplink of UE sends to RN equipment by UE through up access link earlier under the RN equipment, sends to DeNB by RN equipment through back haul link again.

In the LTE-A system, to introducing the uplink of RN equipment, can adopt up BSR (Buffer Status Report, the reporting cached state) mechanism among the LTE, realize that DeNB controls the data volume of two up links.

And for the downlink transfer behind the introducing RN equipment, at present without any the data volume control method.

The influence that brings thus is: owing to not matching of back haul link and access link, if the access link data volume is less than the back haul link data volume, may cause downlink data congested at RN equipment, because the downlink transfer resource of DeNB too much is used for back haul link, make grand UE can not get dispatching in time simultaneously; If the access link data volume is greater than the back haul link data volume, RN equipment has not had downlink data to send out, and DeNB does not slowly give data come, and can cause R-UE data unnecessary delay.

In sum, in the LTE-A system, DeNB is difficult to the downlink data amount is controlled at present, thereby is easy to cause the downlink data downlink data congested or R-UE of RN equipment to postpone.

Summary of the invention

The embodiment of the invention provides a kind of mthods, systems and devices of adjusting data volume, in order to solve exist in the prior art in the LTE-A system that introduces RN, DeNB is difficult to the downlink data amount is controlled, thus the problem that is easy to cause the downlink data downlink data congested or R-UE of RN equipment to postpone.

A kind of method of adjusting data volume that the embodiment of the invention provides, this method comprises:

Via node RN equipment is determined the flow scheduling parameter according to the down buffer storage data volume;

Described RN equipment sends described flow scheduling parameter to the base station, asks described base station according to described flow scheduling parameter, adjusts the data volume of descending back haul link.

The another kind that the embodiment of the invention provides is adjusted the method for data volume, and this method comprises:

The base station receives the flow scheduling parameter from via node RN equipment, and wherein said flow scheduling parameter is that described RN equipment is determined according to the down buffer storage data volume;

Described base station according to receive according to described flow scheduling parameter, adjust the data volume of descending back haul link.

A kind of system that adjusts data volume that the embodiment of the invention provides, this system comprises:

Via node RN equipment is used for determining the flow scheduling parameter according to the down buffer storage data volume, and sends described flow scheduling parameter;

The base station is used for adjusting the data volume of descending back haul link according to described flow scheduling parameter.

A kind of via node RN equipment that the embodiment of the invention provides, this RN equipment comprises:

The parameter determination module is used for determining the flow scheduling parameter according to the down buffer storage data volume;

Sending module is used for sending described flow scheduling parameter to the base station, asks described base station according to described flow scheduling parameter, adjusts the data volume of descending back haul link.

A kind of base station that the embodiment of the invention provides, this base station comprises:

Receiver module is used to receive the flow scheduling parameter from via node RN equipment;

Adjusting module is used for adjusting the data volume of descending back haul link according to described flow scheduling parameter.

Embodiment of the invention RN equipment is determined the flow scheduling parameter according to the down buffer storage data volume, sends described flow scheduling parameter to the base station, and the data volume of descending back haul link is adjusted according to the flow scheduling parameter in the base station.Because DeNB can control the downlink data amount in the LTE-A system, avoid because the very difficult downlink data downlink data congested or R-UE of the downlink data amount being controlled the RN equipment of appearance of DeNB postpones, thereby reduced the delay of downlink data, improved data transmission efficiency and systematic function.

Description of drawings

Fig. 1 is the LTE-A system schematic;

Fig. 2 adjusts the system configuration schematic diagram of data volume for the embodiment of the invention;

Fig. 3 A is first kind of RN device structure of embodiment of the invention schematic diagram;

Fig. 3 B is second kind of RN device structure of embodiment of the invention schematic diagram;

Fig. 3 C is the third RN device structure schematic diagram of the embodiment of the invention;

Fig. 3 D is the 4th kind of RN device structure schematic diagram of the embodiment of the invention;

Fig. 3 E is the 5th kind of RN device structure schematic diagram of the embodiment of the invention;

Fig. 4 is an embodiment of the invention architecture of base station schematic diagram;

Fig. 5 A is the son form schematic diagram of embodiment of the invention DL buffer MAC CE;

Fig. 5 B is the form schematic diagram of first kind of DL buffer of embodiment of the invention MAC CE;

Fig. 5 C is the form schematic diagram of second kind of DL buffer of embodiment of the invention MAC CE;

Fig. 5 D is the form schematic diagram of the third DL buffer MAC CE of the embodiment of the invention;

Fig. 5 E is the MAC PDU structure that the embodiment of the invention contains the MAC head of cell ID;

Fig. 5 F is the son form schematic diagram that the embodiment of the invention contains the DL buffer MAC CE of cell ID;

Fig. 5 G is the form schematic diagram that first kind of the embodiment of the invention contains the DL buffer MAC CE of user terminal identification;

Fig. 5 H is the form schematic diagram that second kind of the embodiment of the invention contains the DL buffer MAC CE of user terminal identification;

Fig. 6 is first kind of method flow schematic diagram of adjusting data volume of the embodiment of the invention;

Fig. 7 is second kind of method flow schematic diagram of adjusting data volume of the embodiment of the invention.

Embodiment

Embodiment of the invention RN equipment is determined the flow scheduling parameter according to the down buffer storage data volume, and to base station transmitted traffic scheduling parameter, the data volume of descending back haul link is adjusted according to the flow scheduling parameter in the base station.Because DeNB can control the downlink data amount in the LTE-A system, avoid because DeNB is difficult to the downlink data amount is controlled the downlink data downlink data congested or R-UE of the RN equipment of appearance postpones, thereby reduced the delay of downlink data.

Below in conjunction with Figure of description the embodiment of the invention is described in further detail.

As shown in Figure 2, the system of embodiment of the invention adjustment data volume comprises: RN equipment 10 and base station 20.

RN equipment 10 is used for determining the flow scheduling parameter according to the down buffer storage data volume, and to base station 20 transmitted traffic scheduling parameter.

Base station 20 is used for adjusting the data volume of descending back haul link according to the flow scheduling parameter of receiving from RN equipment 10.

Wherein, RN equipment 10 is according to the down buffer storage data volume, and the mode of determining the flow scheduling parameter has a variety of, enumerates several below.

Mode one, report the down buffer storage state of all sub-districts under the RN equipment.

RN equipment 10 is determined the flow scheduling parameter according to the down buffer storage data volume of logic channel correspondence.

Wherein, according to the down buffer storage data volume of logic channel correspondence, the mode of determining the flow scheduling parameter has a variety of again, enumerates several below.

Mode A1, RN equipment 10 determines the down buffer storage data volume sum of self all logic channel correspondence, and according to down buffer storage data volume sum, determines the flow scheduling parameter.

Can be such as: RN equipment 10 with the value of down buffer storage data volume sum value as the flow scheduling parameter; RN equipment 10 can also be according to the corresponding relation of predefined number range and call number, determines the call number of the number range correspondence under the value of down buffer storage data volume sum, then with the value of call number as the flow scheduling parameter.

Need to prove that the embodiment of the invention is not limited to above-mentioned dual mode, other can be according to down buffer storage data volume sum, and the mode of determining the flow scheduling parameter all is to use the embodiment of the invention.

Mode A2, RN equipment 10 are determined the logic channel in each logic channel group according to the logic channel group of dividing in advance;

When having only a logic channel in the logic channel group that corresponding down buffer storage data are arranged, determine the down buffer storage data volume of this logic channel group correspondence;

According to the down buffer storage data volume of this logic channel group correspondence, determine the flow scheduling parameter.

Can be such as: RN equipment 10 with the value of the down buffer storage data volume of this logic channel group correspondence value as the flow scheduling parameter; RN equipment 10 can also be according to the corresponding relation of predefined number range and call number, determines the call number of the number range correspondence under the value of down buffer storage data volume of this logic channel group correspondence, then with the value of call number as the flow scheduling parameter.

Mode A3, RN equipment 10 are determined the logic channel in each logic channel group according to the logic channel group of dividing in advance;

When the logic channel in a plurality of logic channel groups are arranged has corresponding down buffer storage data, determine the down buffer storage data volume of all logic channel group correspondences;

According to the down buffer storage data volume of each logic channel group correspondence, determine each logic channel group corresponding flow scheduling parameter respectively.

Concrete, RN equipment 10 is determined after the down buffer storage data volume of each logic channel group correspondence (if the logic channel group that has does not have the down buffer storage data volume, then with the down buffer storage data volume of this logic channel group correspondence as 0), according to the down buffer storage data volume, determine each logic channel group corresponding flow scheduling parameter.That is to say have what logic channel groups will determine what flow scheduling parameters.

Determine among the mode A3 to determine among each logic channel group corresponding flow scheduling parameter and the mode A2 that the mode of a logic channel group corresponding flow scheduling parameter is similar, do not repeat them here.

Wherein, the logic channel group among mode A2 and the A3 can be divided back notice RN equipment 10 by base station 20, also can be by being stored in respectively after the agreement regulation in RN equipment 10 and the base station 20.The logicality of dividing can be adjusted as required to group.Because mode A2 and A3 do not need distinguishing cell, so in the logic channel group at mode A2 and A3, the logic channel of same logic channel group can belong to same sub-district also can belong to different districts.

At mode one, RN equipment 10 can place data cell with the flow scheduling parameter when the 20 transmitted traffic scheduling parameter of base station.

Here can introduce a new MAC CE (MAC Control Element, media access control layer control unit) and be used for the bearing downlink buffer status, for convenience of description hereinafter to be referred as DL buffer MAC CE.Then data cell can be MAC CE.

Need to prove that the embodiment of the invention is not limited to MAC CE, all is to use the embodiment of the invention as long as the flow scheduling parameter can be sent to the data cell of base station.

Concrete, RN equipment 10 usefulness MAC CE bearer traffic scheduling parameter, and logical channel number placed the MAC head of this MAC CE correspondence, wherein to be used to indicate the corresponding loading section of MAC head be the MAC CE (being DL buffer MACCE) that carries the flow scheduling parameter of RN equipment to logical channel number;

RN equipment 10 sends the MAC PDU (MAC Packet Data Unit, descending media access control protocol data unit) that comprises this MAC CE and corresponding MAC head to base station 20.

No matter be mode A1, A2 and A3, the form of the corresponding MAC head of DL buffer MAC CE all is the same, referring to Fig. 5 A.

Among Fig. 5 A, LCID (Logical Channel ID, Logic Channel Identifier): be used to identify the logical channel number of corresponding load part, long BSR (long reporting cached state), short BSR (short reporting cached state), truncated BSR (reporting cached state that does not have the top) respectively have a LCID.

E: extended bit, being used to indicate next byte is MAC head or MAC load.

R: reserved bit.

In specific implementation process, the DL buffer MAC CE of mode A1, A2 and A3 can be different.

The DL buffer MAC CE of mode A1 because mode A1 does not distinguish the logic channel of down buffer storage data correspondence, only carries out total amount and reports shown in Fig. 5 B, so also do not need in the DL buffer MAC CE form to divide.

Such as the capacity among Fig. 5 B is 8 bits, and the bit number that takies when total buffer memory can also be introduced reserved bit during less than 8 bits in DL buffer MAC CE.

The DL buffer MAC CE of mode A2 is shown in Fig. 5 C, owing to have only a logic channel group that the down buffer storage data volume is arranged, so only need report this logic channel group to get final product, which logic channel group in order to allow base station 20 know is, RN equipment 10 can be according to the corresponding relation of predefined logic channel group and logic channel group id, determine the logic channel group id of this logic channel group correspondence, behind the logic channel group id and the binding of down buffer storage data volume determined, place the MAC CE of bearer traffic scheduling parameter.

Suppose to have 4 logic channel groups, every group of down buffer storage reports and only needs 6bit, when having only a logic channel group that downlink data is arranged, the logic channel group id can be placed the front, the back amount of releasing scheduling parameter.

Wherein, the corresponding relation of logic channel group and logic channel group id can be set up back notice RN equipment 10 by base station 20, also can be by being stored in respectively after the agreement regulation in RN equipment 10 and the base station 20.

Need to prove that the embodiment of the invention is not limited to the form of Fig. 5 C, other DL buffer MAC CE forms that logic channel group id and flow scheduling parameter can be sent to base station 20 all are suitable for the embodiment of the invention.

The DL buffer MAC CE of mode A3 is shown in Fig. 5 D, owing to there being a plurality of logic channel groups that the down buffer storage data volume is arranged, so each flow scheduling parameter can be placed in order the MAC CE of bearer traffic scheduling parameter.

Have 4 logic channel groups such as one, according to the order of logic channel group id, (promptly 0,1,2,3) places DL buffer MAC CE with logic channel group corresponding flow scheduling parameter from small to large.

At mode one, RN equipment 10 can determine satisfy first trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources the time, determine the flow scheduling parameter.

The flow scheduling parameter that can carry here is according to different modes, and the surplus resources capacity that needs is also inequality, needs the surplus resources that can carry the form shown in Fig. 5 A and Fig. 5 B such as mode A1; Mode A2 needs the surplus resources that can carry the form shown in Fig. 5 A and Fig. 5 C; Mode A3 needs the surplus resources that can carry the form shown in Fig. 5 A and Fig. 5 D.

Wherein, determine to satisfy first trigger condition during a kind of in satisfying following condition of RN equipment 10:

The first triggering cycle arrived (being periodic triggers), and concrete can be provided with DL buffer timer, started after DLbuffer reports or restarted, and triggered reporting behind this timer expiry;

Greater than first threshold value (being Event triggered), the down buffer storage data volume here also can replace to access link downlink resource utilance to down buffer storage data volume (being the value of back haul link data volume-access link data volume);

Less than second threshold value (being Event triggered), the down buffer storage data volume here also can replace to access link downlink resource utilance to down buffer storage data volume (being the value of back haul link data volume-access link data volume).

First threshold value and second threshold value can be provided with as required, such as can back notice RN equipment 10 being set by base station 20, also can be provided with by RN equipment 10, can also manually be provided with and store in the RN equipment 10.

After in specific implementation process, might occurring determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment RN equipment 10 can be according to the time sequencing that satisfies first trigger condition, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

Then trigger such as timer before this, after be that the down buffer storage data volume triggers greater than first threshold value, and after the down buffer storage data volume triggers greater than first threshold value, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, down buffer storage data volume when at this moment triggering greater than first threshold value according to the down buffer storage data volume is determined the flow scheduling parameter.

Because the down buffer storage data volume triggers greater than first threshold value, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment determined the flow scheduling parameter, and timer then triggers and is also keeping, so need the deletion timer to trigger, then RN equipment 10 is after the 20 transmitted traffic scheduling parameter of base station, and deletion the last time is satisfied all triggerings of determining before first trigger condition.

At mode one, RN equipment 10 can also determine to have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources the time, determine flow scheduling parameter (being that padding triggers).

The flow scheduling parameter that can carry during Padding triggers is according to different modes, the surplus resources capacity that needs is also inequality, concrete back haul link uplink have surplus resources can with and can hold DLbuffer MAC CE and MAC the time, can determine to have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources.

In specific implementation process, the priority of Event triggered and periodic triggers can be higher than the priority that padding triggers.

Mode two, report the down buffer storage state of 10 times each sub-districts of RN equipment.

Wherein, the upstream data whether mode two can be distinguished from the different districts of RN equipment 10 according to base station 20 again is divided into dual mode.

The upstream data from the different districts of RN equipment 10 can be distinguished in mode B1, base station 20.

Mode B1 and mode one are similar, also are the down buffer storage data volumes according to the logic channel correspondence, determine the flow scheduling parameter.

Difference is: if when adopting mode A1 in the similar fashion one, RN equipment 10 is determined just is not the down buffer storage data volume sum of self all logic channel correspondence, but determines the down buffer storage data volume sum of all logic channel correspondences under the same sub-district.

If adopt mode A2 or A3 (promptly dividing the logic channel group) in the similar fashion one, then when dividing the logic channel group, all logic channels in the same logic channel group belong to same sub-district, and other process and mode one are similar, do not repeat them here.

The upstream data from the different districts of RN equipment 10 can not be distinguished in mode B2, base station 20.

Wherein, RN equipment 10 is determined each logic channel group corresponding district sign; Each logic channel group corresponding district sign is placed the MAC CE of MAC of MAC CE correspondence of the bearer traffic scheduling parameter or bearer traffic scheduling parameter or as the MAC PDU head of MAC independently.

Concrete, because the upstream data from the different districts of RN equipment 10 can not be distinguished in base station 20, so cell ID need be placed MAC PDU.

If adopt the mode A1 in the similar fashion one, then can in the DL of Fig. 5 B buffer MAC CE, add cell ID, and RN equipment 10 is determined is not the down buffer storage data volume sum of self all logic channel correspondence, but determines the down buffer storage data volume sum of all logic channel correspondences under the same sub-district.

If adopt mode A2 or A3 (promptly dividing the logic channel group) in the similar fashion one, then can in the DL buffer of Fig. 5 C and Fig. 5 D MAC CE, add cell ID, and when dividing the logic channel group, all logic channels in the same logic channel group belong to same sub-district.

Except the mode of interpolation cell ID above-mentioned, also have some universal mode, promptly no matter concrete which kind of mode in the employing mode one all is suitable for.

Shown in Fig. 5 E, can introduce total MAC head, experimental process head under this child head and corresponding MAC load belong to same sub-district.

Shown in Fig. 5 F, in DL buffer MAC, add indication territory, sub-district, MAC form of DL buffer is as follows, and wherein the length in cell ID (cell ID) territory represents that by the final cell ID that determines mode is definite.

The triggering mode of the triggering mode of mode two and mode one is similar, does not repeat them here.

At mode two, if after determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment RN equipment 10 can be according to the time sequencing that satisfies first trigger condition, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

At mode two, RN equipment 10 can be deleted the last all triggerings determined before first trigger condition of satisfying after the 20 transmitted traffic scheduling parameter of base station.

Mode three, represent the state of current back haul link downlink transmission data amount with 1～2 bit.

RN equipment 10 is determined link corresponding information bit value according to the down buffer storage data volume, and according to the link information bit value, determines the value of flow scheduling parameter, and wherein the link information bit value is used to indicate the state of down buffer storage data volume.

Mode three and mode one and two differences are that RN equipment 10 with the value of link information bit value as the flow scheduling parameter, compares the amount of bits that mode one and mode two can reduce transmission like this.

Suppose link information bit stealing 1 bit, whether then different bits is represented the current downlink data amount of receiving from back haul link and is mated from the data volume that access link sends to user terminal.

For example:

0 expression coupling, 1 expression (back haul link data volume-access link data volume)〉first threshold value;

Accordingly, existing back haul link data volume is kept in base station 20 after receiving 0, receives 1 back minimizing back haul link downlink data amount.

For example:

0 expression (back haul link data volume-access link data volume)＜second thresholding, 1 expression (back haul link data volume-access link data volume)〉first thresholding;

Base station 20 is receiving that 0 back suitably increases back haul link downlink data amount according to data status to be sent, receives 1 back minimizing back haul link downlink data amount.

Suppose link information bit stealing 1 bit, then can represent 4 states, wherein 3 bit representation back haul link data volumes are greater than the access link data volume in utilization, and the back haul link data volume is less than the access link data volume, and back haul link data volume and link data are flux matched.

For example:

00 expression coupling, 01 expression (back haul link data volume-access link data volume)〉first thresholding, 10 expression (back haul link data volume-access link data volume)＜second thresholdings;

Accordingly, existing back haul link data volume is kept in base station 20 after receiving 00, receives 01 back minimizing back haul link downlink data amount, receives that 10 backs can suitably increase back haul link downlink data amount according to data status to be sent.

In specific implementation process, specifically adopt several bits, and the concrete implication of bit is what can also can be stipulated by base station 20 setting back notice RN equipment 10 in agreement.

In specific implementation process, mode one and mode two RN equipment 10 are PUSCH (PhysicalUplink Shared channel, Physical Uplink Shared Channel) resource transmission of utilizing.

Owing to report the expense that takies very little, can utilize PUSCH resource or PUCCH (Physical Uplink Control channel, Physical Uplink Control Channel) resource transmission in the mode three.

That is to say that RN equipment 10 sends by PUSCH resource or PUCCH resource the flow scheduling parameter to the base station

Concrete, PUSCH resource: need not design special MAC CE, can utilize the reserved bit of the corresponding son head of other MAC CE or MAC SDU, be defined in transmission in certain specific MAC head.

That is to say that RN equipment 10 sends by the reserved bit in special-purpose PUCCH resource or the special MAC head flow scheduling parameter to the base station.

Such as the R bit transfer of utilizing among Fig. 5 A.

In order accurately to find the downlink data amount to report the MAC head at place, can stipulate that it is arranged in specific MAC head, as: go up row cache and report the MAC head or the downlink data amount of BSR correspondence to report the sub-head of first MAC that triggers first uplink of back.

The PUCCH resource: the PUCCH resource is a physical layer control resource, by the RRC signaling.Can be used to report to the special-purpose PUCCH resource that RN disposes 1 or 2 bits.

Need to prove that the embodiment of the invention is not limited to above-mentioned transmission means, other can all be suitable for the embodiment of the invention by the mode of PUSCH resource or PUCCH resource transmission flow scheduling parameter.

Wherein, the triggering mode of the triggering mode of mode three and mode one is similar, and Event triggered and periodic triggers are also arranged, and wherein Event triggered can be identical with Event triggered and the periodic triggers in the mode one with periodic triggers.

In the Event triggered such as mode three, can satisfy the back in following condition and confirm Event triggered:

(back haul link data volume-access link data volume) is greater than first thresholding;

(back haul link data volume-access link data volume) is less than second thresholding;

In specific implementation process, (back haul link data volume-access link data volume) can also be replaced with (back haul link data volume-access link data volume)/back haul link data volume.

At 1 bit,, do not trigger when then satisfying " less than second thresholding " condition if there is not the expression position of " less than second thresholding ".

Mode three also has a resource triggering mode, the padding of similar fashion one sets out, if promptly the downlink data amount of regulation RN equipment 10 utilizes the R bit of special MAC head (as the corresponding MAC head of up BSR) to report the triggering of can (giving the correct time on as up BSR) when this child head occurs.

Such as finishing once modes such as triggering back other all triggerings of cancellation and mode one is similar, do not repeat them here.

At mode three, if after determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment RN equipment 10 can be according to the time sequencing that satisfies first trigger condition, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

At mode three, RN equipment 10 can be deleted the last all triggerings determined before first trigger condition of satisfying after the 20 transmitted traffic scheduling parameter of base station.

Mode four, report the state of 10 times specific user terminal of RN equipment.

Mode one, two, three all is based on the conceptual data amount control of interface, but congested sometimes just certain user terminal channel condition worsens suddenly and cause, so the report introduced the specific user terminal congestion state of mode four.

Because the data volume of mode four is bigger, so mode four can adopt the MACCE bearer traffic scheduling parameter that is mapped on the PUSCH.

RN equipment 10 is determined the user terminal that need carry out flow control according to the down buffer storage data volume of user terminal correspondence; Carry out the sign of the user terminal of flow control as required, determine the flow scheduling parameter.

Can be such as: RN equipment 10 with the sign of user terminal as the flow scheduling parameter.

The sign of user terminal can be to distribute to C-RNTI of this user terminal (Cell Radio NetworkTemporary Identifier, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) or the peculiar sign of user terminal.

Identical with mode one, also be to introduce a new MAC CE to be used for the bearing downlink buffer status here, i.e. DL buffer MAC.

Concrete, RN equipment 10 usefulness MAC CE bearer traffic scheduling parameter, and particular logical channel number placed the MAC head of this MAC CE correspondence, wherein to be used to indicate the loading section of MAC correspondence be the MAC CE of bearer traffic scheduling parameter to logical channel number; Send the MAC PDU that comprises this MACCE to base station 20.

Wherein, the form of MAC of MAC CE correspondence head is identical with the form of the corresponding MAC head of DL buffer MAC CE in the mode one, specifically can be referring to Fig. 5 A.

In the mode four, the form of DL buffer MAC CE has a variety of, enumerates several below.

The sign of mode C1, report of user terminal and flow scheduling parameter.

The down buffer storage data volume that RN equipment 10 carries out the user terminal correspondence of flow control with needs places the MAC CE of bearer traffic scheduling parameter, the flow scheduling parameter of this moment comprises the sign of user terminal and down buffer storage data volume two parts content of this terminal, specifically referring to Fig. 5 G.

The sign of mode C2, report of user terminal.

The flow scheduling parameter of this moment comprises the sign of user terminal, specifically referring to Fig. 5 H.

At mode four, RN equipment 10 can determine to satisfy second trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources the time, determine the flow scheduling parameter.

The flow scheduling parameter that can carry here is according to different modes, and the surplus resources capacity that needs is also inequality, needs the surplus resources that can carry the form shown in Fig. 5 A and Fig. 5 G such as mode C1; Mode C2 needs the surplus resources that can carry the form shown in Fig. 5 A and Fig. 5 H.

Wherein, determine to satisfy second trigger condition during a kind of in satisfying following condition of RN equipment 10:

The second triggering cycle arrived (being periodic triggers), and concrete can be provided with DL buffer timer, started after DLbuffer reports or restarted, and triggered reporting behind this timer expiry;

The down buffer storage data volume of user terminal correspondence (being the value of back haul link data volume-access link data volume) is greater than the 3rd threshold value (being Event triggered);

The downlink transmission parameters of user terminal correspondence (being the value of back haul link data volume-access link data volume) is greater than the 4th threshold value (being Event triggered), and wherein downlink transmission parameters equals the ratio (i.e. (value of back haul link data volume-access link data volume)/back haul link data volume) of down buffer storage data volume He this family terminal corresponding return link data amount of user terminal correspondence.

In specific implementation process, RN equipment 10 can be determined the 3rd threshold value and the 4th threshold value of user terminal correspondence according to the user terminal of setting up in advance and the corresponding relation of threshold value; Or, determine to send to the 3rd threshold value and the 4th threshold value of the type of service correspondence under the data of user terminal according to the type of service of setting up in advance and the corresponding relation of threshold value.

The corresponding relation of the corresponding relation of user terminal and threshold value and type of service and threshold value can be set up back notice RN equipment 10 by base station 20, also can set in agreement.

Need to prove that above-mentioned two kinds of corresponding relations can be set and upgrade as required.

After in specific implementation process, might occurring determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment can be according to the time sequencing that satisfies second trigger condition, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

Then trigger such as timer before this, after be that the down buffer storage data volume of user terminal correspondence triggers greater than the 3rd threshold value, and after the down buffer storage data volume is greater than the 3rd threshold value, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment the down buffer storage data volume during greater than the 3rd threshold value according to the down buffer storage data volume is determined the flow scheduling parameter.

Because the down buffer storage data volume triggers greater than the 3rd threshold value, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment determined the flow scheduling parameter, and timer then triggers and is also keeping, so need the deletion timer to trigger, then RN equipment 10 is after the 20 transmitted traffic scheduling parameter of base station, and deletion the last time is satisfied all triggerings of determining before second trigger condition.

Wherein mode four also can adopt padding to trigger, and concrete mode is identical with padding triggering mode in the mode one, does not repeat them here.

If periodic triggers and Event triggered, RN equipment 10 can determine that needs carry out the user terminal of flow control according to following manner:

In satisfied second trigger condition is when arriving in the second triggering cycle, RN equipment 10 is determined the down buffer storage data volume of each user terminal correspondence, and the user terminal (such as the user terminal of down buffer storage data volume maximum) that the down buffer storage data volume is carried out flow control greater than the user terminal of first threshold as needs; Or the downlink transmission parameters of definite each user terminal correspondence, and the user terminal (such as the user terminal of downlink transmission parameters maximum) that downlink transmission parameters is carried out flow control greater than the user terminal of second threshold value as needs;

Satisfy second trigger condition be the down buffer storage data volume of user terminal correspondence greater than the downlink transmission parameters of the 3rd threshold value or user terminal correspondence during greater than the 4th threshold value, RN equipment 10 carries out greater than the user terminal of the 4th threshold value the down buffer storage data volume user terminal of flow control as needs greater than the 3rd threshold value or downlink transmission parameters.

If padding triggers, RN equipment 10 can determine that needs carry out the user terminal of flow control according to following manner:

RN equipment 10 is determined the down buffer storage data volume of each user terminal correspondence, and the user terminal (such as the user terminal of down buffer storage data volume maximum) that the down buffer storage data volume is carried out flow control greater than the user terminal of the 3rd threshold value as needs; Or

RN equipment 10 is determined the downlink transmission parameters of each user terminal correspondence, and the user terminal (such as the user terminal of downlink transmission parameters maximum) that downlink transmission parameters is carried out flow control greater than the user terminal of the 4th threshold value as needs, wherein downlink transmission parameters equals the ratio of down buffer storage data volume He this family terminal corresponding return link data amount of user terminal correspondence.

Wherein, each threshold value can be set as required, and concrete can set back notice RN equipment 10 by base station 20, also can set in agreement.

In specific implementation process, after the Event triggered, but as the ascending resource time spent, RN equipment 10 can be by congested (being down buffer storage data volume or downlink transmission parameters) situation of the highest service priority or the user terminal of corresponding user terminal, and order reports each user terminal corresponding flow scheduling parameter from high in the end.

The priority that the priority of Event triggered can be higher than periodic triggers is higher than the priority that padding triggers, that is to say Event triggered cause report after, cancellation periodic triggers and padding trigger, periodic triggers cause report after, cancellation padding triggers.

Mode four can independently be used, and also can unite use with mode one, two or three.

In specific implementation process, the down buffer storage data volume of the embodiment of the invention can be according to this fixed timing statistics, and the cycle is added up; Can also add up the down buffer storage data volume in real time.

Need to prove that the embodiment of the invention is not limited to above-mentioned statistical, other modes that can add up the down buffer storage data volume all are suitable for the embodiment of the invention.

Base station 20 is according to the flow scheduling parameter of receiving from RN equipment 10, when adjusting the data volume of descending back haul link, if RN equipment 10 employing schemes four report, base station 20 is according to the flow scheduling parameter of receiving, adjust the data volume that sends to the respective user terminal in the descending back haul link, promptly only reduce the downlink data amount that sends to specific user terminal (this user terminal identification is included among the DL buffer MAC CE).

In specific implementation process, when the data volume of descending back haul link is adjusted in base station 20, can also adjust the directly downlink resource of the grand user terminal of management of base station 20, such as RN equipment 10 down buffer storage data volumes more for a long time, base station 20 is just many to grand user terminal allocation of downlink scheduling resource, reduces the downlink resource to RN equipment 10.

Base station 20 can also be according to the flow scheduling parameter, adjust the sub-frame number of descending back haul link, concrete, if the information that base station 20 reports according to RN equipment 10, determine that back haul link downlink data amount is lower than the access link data volume for a long time, then base station 20 can increase the number of DL backhaul subframe;

If back haul link downlink data amount is higher than the access link data volume for a long time, the DLbackhaul number of sub-frames can be reduced in base station 20, makes RN equipment 10 have more subframes to can be used for the downlink transfer of access link.

As shown in Figure 3A, embodiment of the invention RN equipment comprises: parameter determination module 100 and sending module 110.

Parameter determination module 100 is used for determining the flow scheduling parameter according to the down buffer storage data volume;

Sending module 110 is used for sending the flow scheduling parameter that parameter determination module 100 is determined to the base station, and the data volume of descending back haul link is adjusted according to the flow scheduling parameter in the request base station.

Wherein, it is a variety of that parameter determination module 100 determines that the mode of flow scheduling parameter has, and enumerates several below.

Mode one, parameter determination module 100 are determined the flow scheduling parameter according to the down buffer storage data volume of logic channel correspondence;

Accordingly, sending module 110 usefulness units of data carry flow scheduling parameters, and data cell sent to the base station.

Wherein, data cell can be MAC CE, sending module 110 usefulness MAC CE bearer traffic scheduling parameter then, and logical channel number is placed the MAC head of this MAC CE correspondence, send the descending media access control protocol data unit MACPDU comprise this MAC CE and corresponding MAC head to the base station, wherein to be used to indicate the loading section of MAC head correspondence be the MAC CE that carries the flow scheduling parameter of RN equipment to logical channel number.

Concrete, parameter determination module 100 has the down buffer storage data volume of multiple mode according to the logic channel correspondence, determines the flow scheduling parameter.

1, parameter determination module 100 is determined the down buffer storage data volume sum of all logic channel correspondences, and according to down buffer storage data volume sum, determines the flow scheduling parameter.

2, parameter determination module 100 is according to the logic channel group of dividing in advance, determine the logic channel in each logic channel group, when having only a logic channel in the logic channel group that corresponding down buffer storage data are arranged, determine the down buffer storage data volume of this logic channel group correspondence, according to the down buffer storage data volume of this logic channel group correspondence, determine the flow scheduling parameter;

Accordingly, the RN equipment of the embodiment of the invention can further include: first processing module 120, and referring to Fig. 3 B.

First processing module 120, be used for corresponding relation according to predefined logic channel group and logic channel group id, determine the logic channel group id of this logic channel group correspondence, behind the logic channel group id and flow scheduling Wire Parameters determined, place the MAC CE of bearer traffic scheduling parameter.

3, parameter determination module 100 is according to the logic channel group of dividing in advance, determine the logic channel in each logic channel group, when the logic channel in a plurality of logic channel groups are arranged has corresponding down buffer storage data, determine the down buffer storage data volume of all logic channel group correspondences, according to the value of the down buffer storage data volume of each logic channel group correspondence, determine each logic channel group corresponding flow scheduling parameter respectively;

Accordingly, the RN equipment of the embodiment of the invention can further include: second processing module 130, and referring to Fig. 3 B.

Second processing module 130 is used for each flow scheduling parameter is all placed the MAC CE of bearer traffic scheduling parameter.

Mode two, logic channel group can be divided according to the sub-district, and then all logic channels in each logic channel group of dividing in advance belong to same sub-district; Then embodiment of the invention RN equipment can further include: the 3rd processing module 140, and referring to Fig. 3 C.

The 3rd processing module 140, be used for determining each logic channel group corresponding district sign, each logic channel group corresponding district sign placed the MAC CE of MAC of MAC CE correspondence of the bearer traffic scheduling parameter or bearer traffic scheduling parameter or as the MAC PDU head of MAC independently.

Mode three, parameter determination module 100 are determined link corresponding information bit value according to the down buffer storage data volume, and according to the link information bit value, determine the value of flow scheduling parameter, and wherein the link information bit value is used to indicate the state of down buffer storage data volume;

Accordingly, sending module 110 sends by PUSCH resource or PUCCH resource the flow scheduling parameter to the base station.

Concrete, if send to the base station by the PUSCH resource, sending module 110 sends by the reserved bit in special-purpose PUCCH resource or the special MAC head flow scheduling parameter to the base station.

At mode one, two and three, embodiment of the invention RN equipment can further include: first trigger module 150, and referring to Fig. 3 D.

First trigger module 150 is used for determine satisfying first trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, trigger parameter determination module 100 is determined the flow scheduling parameters;

Accordingly, parameter determination module 100 is according to the time sequencing that satisfies first trigger condition, and the down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

Wherein, determine to satisfy first trigger condition during a kind of in satisfying following condition of first trigger module 100:

The first triggering cycle arrived;

The down buffer storage data volume is greater than first threshold value;

The down buffer storage data volume is less than second threshold value.

At mode one, two and three, the RN equipment of the embodiment of the invention can further include: first removing module 160, and referring to Fig. 3 D.

First removing module 160 is used at sending module 110 after the transmitted traffic scheduling parameter of base station, all triggerings of determining before the last satisfied first trigger condition of deletion.

At mode one, two and three, embodiment of the invention RN equipment can further include: second trigger module 170, and referring to Fig. 3 D.

Second trigger module 170, be used for determining the back haul link uplink have can the surplus resources of bearer traffic scheduling parameter after, the trigger parameter determination module is determined the flow scheduling parameter.

Four, parameter determination module 100 is according to the down buffer storage data volume of user terminal correspondence, determines the user terminal that need carry out flow control, carries out the sign of the user terminal of flow control as required, determines the flow scheduling parameter;

Accordingly, sending module 110 usefulness MAC CE bearer traffic scheduling parameter, and particular logical channel number is placed the MAC head of this MAC CE correspondence, wherein to be used to indicate the corresponding loading section of MAC head be the MAC CE of bearer traffic scheduling parameter to logical channel number, send the MAC PDU that comprises this MAC CE to the base station, be used to ask the base station according to the flow scheduling parameter of receiving, adjust the data volume that sends to user terminal in the descending back haul link.

At mode four, embodiment of the invention RN equipment can further include: manages module 180 everywhere, referring to Fig. 3 E.

Manages module 180 everywhere, is used for the down buffer storage data volume that needs carry out the user terminal correspondence of flow control is placed the MAC CE of bearer traffic scheduling parameter.

At mode four, embodiment of the invention RN equipment can further include: the 3rd trigger module 190, and referring to Fig. 3 E.

The 3rd trigger module 190 is used for determine satisfying second trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, the trigger parameter determination module is determined the flow scheduling parameter;

Accordingly, parameter determination module 100 is according to the time sequencing that satisfies second trigger condition, and the down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

Wherein, determine to satisfy second trigger condition during a kind of in satisfying following condition of the 3rd trigger module 190:

The second triggering cycle arrived;

The down buffer storage data volume of user terminal correspondence is greater than the 3rd threshold value;

The downlink transmission parameters of user terminal correspondence is greater than the 4th threshold value, and wherein downlink transmission parameters equals the ratio of down buffer storage data volume He this family terminal corresponding return link data amount of user terminal correspondence.

The 3rd trigger module 190 can also be determined the 3rd threshold value and the 4th threshold value of user terminal correspondence according to the user terminal of setting up in advance and the corresponding relation of threshold value; Or

According to the type of service of setting up in advance and the corresponding relation of threshold value, determine to send to the 3rd threshold value and the 4th threshold value of the type of service correspondence under the data of user terminal.

Parameter determination module 100 is when arriving in the second triggering cycle in satisfied second trigger condition, determine the down buffer storage data volume of each user terminal correspondence, and the down buffer storage data volume is carried out the user terminal of flow control greater than the user terminal of first threshold as needs; Or the downlink transmission parameters of definite each user terminal correspondence, and the user terminal that downlink transmission parameters is carried out flow control greater than the user terminal of second threshold value as needs;

Satisfy second trigger condition be the down buffer storage data volume of user terminal correspondence greater than the downlink transmission parameters of the 3rd threshold value or user terminal correspondence during greater than the 4th threshold value, the user terminal that the down buffer storage data volume is carried out flow control greater than the 3rd threshold value or downlink transmission parameters greater than the user terminal of the 4th threshold value as needs.

At mode four, the RN equipment of the embodiment of the invention can further include: second removing module 191, and referring to Fig. 3 E.

Second removing module 191 is used at sending module 110 after the transmitted traffic scheduling parameter of base station, all triggerings of determining before the last satisfied second trigger condition of deletion.

At mode four, the RN equipment of the embodiment of the invention can further include: the 4th trigger module 192, and referring to Fig. 3 E.

The 4th trigger module 192, be used for determining the back haul link uplink have can the surplus resources of bearer traffic scheduling parameter after, the trigger parameter determination module is determined the flow scheduling parameter.

At mode four, parameter determination module 100 is determined the down buffer storage data volume of each user terminal correspondence, and the user terminal that the down buffer storage data volume is carried out flow control greater than the user terminal of the 3rd threshold value as needs; Or

Determine the downlink transmission parameters of each user terminal correspondence, and the user terminal that downlink transmission parameters is carried out flow control greater than the user terminal of the 4th threshold value as needs, wherein downlink transmission parameters equals the ratio of down buffer storage data volume He this family terminal corresponding return link data amount of user terminal correspondence.

As shown in Figure 4, embodiment of the invention base station comprises: receiver module 200 and adjusting module 210.

Receiver module 200 is used to receive the flow scheduling parameter from RN equipment.

Adjusting module 210 is used for the flow scheduling parameter received according to receiver module 200, adjusts the data volume of descending back haul link.

If wherein RN equipment adopts the mode of introducing above four to report, then receiver module 200 also can receive the sign from the user terminal of RN equipment;

Accordingly, adjusting module 210 is adjusted the data volume that sends to the sign corresponding user terminal in the descending back haul link according to the flow scheduling parameter of receiving.

In specific implementation process, when adjusting module 210 is adjusted the data volume of descending back haul link, can also adjust the downlink resource of the grand user terminal of directly managing the base station according to the flow scheduling parameter.

Adjusting module 210 can also be according to the flow scheduling parameter, adjust the sub-frame number of descending back haul link, concrete, if the information that adjusting module 210 reports according to RN equipment, determine that back haul link downlink data amount is lower than the access link data volume for a long time, then adjusting module 210 can increase the number of DL backhaul subframe;

If back haul link downlink data amount is higher than the access link data volume for a long time, adjusting module 210 can reduce DL backhaul number of sub-frames.

As shown in Figure 6, first kind of method of adjusting data volume of the embodiment of the invention comprises the following steps:

Step 601, RN equipment are determined the flow scheduling parameter according to the down buffer storage data volume.

Step 602, RN equipment are to base station transmitted traffic scheduling parameter, and the data volume of descending back haul link is adjusted according to the flow scheduling parameter in the request base station.

In the step 601, RN equipment is according to the down buffer storage data volume, and the mode of determining the flow scheduling parameter has a variety of, enumerates several below.

RN equipment is determined the flow scheduling parameter according to the down buffer storage data volume of logic channel correspondence.

Mode A1, RN equipment are determined the down buffer storage data volume sum of self all logic channel correspondence, and according to down buffer storage data volume sum, determine the flow scheduling parameter.

The mode A1 that the mode A1 here and the embodiment of the invention are adjusted in the system of data volume is identical, does not repeat them here.

The mode A2 that the mode A2 here and the embodiment of the invention are adjusted in the system of data volume is identical, does not repeat them here.

The mode A3 that the mode A3 here and the embodiment of the invention are adjusted in the system of data volume is identical, does not repeat them here.

Wherein, the logic channel group among mode A2 and the A3 can be divided back notice RN equipment by the base station, also can be by being stored in respectively in RN equipment and the base station after the agreement regulation.The logicality of dividing can be adjusted as required to group.Because mode A2 and A3 do not need distinguishing cell, so in the logic channel group at mode A2 and A3, the logic channel of same logic channel group can belong to same sub-district also can belong to different districts.

At mode one, in the step 602, RN equipment can place data cell with the flow scheduling parameter when the transmitted traffic scheduling parameter of base station.

Here can introduce a new MAC CE and be used for the bearing downlink buffer status, for convenience of description hereinafter to be referred as DL buffer MAC CE.Then data cell can be MAC CE.

Concrete, RN equipment MAC CE bearer traffic scheduling parameter, and logical channel number placed the MAC head of this MAC CE correspondence, wherein to be used to indicate the corresponding loading section of MAC head be the MAC CE (being DL buffer MAC CE) that carries the flow scheduling parameter of RN equipment to logical channel number;

RN equipment sends the MAC PDU that comprises this MAC CE and corresponding MAC head to the base station.

The DL buffer MAC CE of mode A2 is shown in Fig. 5 C, owing to have only a logic channel group that the down buffer storage data volume is arranged, so only need report this logic channel group to get final product, which logic channel group in order to allow the base station know is, RN equipment can be according to the corresponding relation of predefined logic channel group and logic channel group id, determine the logic channel group id of this logic channel group correspondence, behind the logic channel group id and the binding of down buffer storage data volume determined, place the MAC CE of bearer traffic scheduling parameter.

Wherein, the corresponding relation of logic channel group and logic channel group id can be set up back notice RN equipment by the base station, also can be by being stored in respectively in RN equipment and the base station after the agreement regulation.

Need to prove that the embodiment of the invention is not limited to the form of Fig. 5 C, other DL buffer MAC CE forms that logic channel group id and flow scheduling parameter can be sent to the base station all are suitable for the embodiment of the invention.

The DLbufferMAC CE of mode A3 is shown in Fig. 5 D, owing to there being a plurality of logic channel groups that the down buffer storage data volume is arranged, so each flow scheduling parameter can be placed in order the MAC CE of bearer traffic scheduling parameter.

At mode one, in the step 601, RN equipment can determine satisfy first trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources the time, determine the flow scheduling parameter.

Wherein, determine to satisfy first trigger condition during a kind of in satisfying following condition of RN equipment:

First threshold value and second threshold value can be provided with as required, such as can back notice RN equipment being set by the base station, also can be provided with by RN equipment, can also manually be provided with and store in the RN equipment.

After in specific implementation process, might occurring determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment RN equipment can be according to the time sequencing that satisfies first trigger condition in the step 601, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

Because the down buffer storage data volume triggers greater than first threshold value, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment determined the flow scheduling parameter, and timer then triggers and is also keeping, so need the deletion timer to trigger, then can further include after the step 602:

All triggerings of determining before the last satisfied first trigger condition of RN unit deletion.

At mode one, in the step 601, RN equipment can also determine to have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources the time, determine flow scheduling parameter (being that padding triggers).

Mode two, report the down buffer storage state of each sub-district under the RN equipment.

Wherein, whether mode two can distinguish upstream data from the different districts of RN equipment according to the base station again, is divided into dual mode.

The upstream data from the different districts of RN equipment can be distinguished in mode B1, base station.

The mode B1 that the mode B1 here and the embodiment of the invention are adjusted in the system of data volume is identical, does not repeat them here.

The mode B2 that the mode B2 here and the embodiment of the invention are adjusted in the system of data volume is identical, does not repeat them here.

If adopt the mode A1 in the similar fashion one, then can in the DL of Fig. 5 B buffer MAC CE, add cell ID, and RN equipment is determined is not the down buffer storage data volume sum of self all logic channel correspondence, but determines the down buffer storage data volume sum of all logic channel correspondences under the same sub-district.

Except the mode of interpolation cell ID above-mentioned, also have some universal mode, promptly no matter concrete which kind of mode in the employing mode one all is suitable for, specifically can be referring to 5E and 5F.

At mode two, in the step 601, if after determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, RN equipment can be according to the time sequencing that satisfies first trigger condition, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter;

At mode two, can further include after the step 602:

RN equipment can be deleted the last all triggerings determined before first trigger condition of satisfying.

RN equipment is determined link corresponding information bit value according to the down buffer storage data volume, and according to the link information bit value, determines the value of flow scheduling parameter, and wherein the link information bit value is used to indicate the state of down buffer storage data volume.

Mode three and mode one and two differences are that RN equipment with the value of link information bit value as the flow scheduling parameter, compares the amount of bits that mode one and mode two can reduce transmission like this.

The mode three that the mode three here and the embodiment of the invention are adjusted in the system of data volume is identical, does not repeat them here.

In specific implementation process, specifically adopt several bits, and the concrete implication of bit is what can also can be stipulated by notice RN equipment after the base station sets in agreement.

In specific implementation process, mode one and mode two RN equipment are PUSCH resource transmission of utilizing.

Owing to report the expense that takies very little, can utilize PUSCH resource or PUCCH resource transmission in the mode three.

That is to say that in the step 602, RN equipment sends by PUSCH resource or PUCCH resource the flow scheduling parameter to the base station

That is to say that RN equipment sends by the reserved bit in special-purpose PUCCH resource or the special MAC head flow scheduling parameter to the base station.

Such as the R bit transfer of utilizing among Fig. 5 A.

In the step 601, the triggering mode of the triggering mode of mode three and mode one is similar, and Event triggered and periodic triggers are also arranged, and wherein Event triggered can be identical with Event triggered and the periodic triggers in the mode one with periodic triggers.

Mode three also has a resource triggering mode, the padding of similar fashion one sets out, be in the step 601, if the downlink data amount of regulation RN equipment utilizes the R bit of special MAC head (as the corresponding MAC head of up BSR) to report the triggering of can (giving the correct time on as up BSR) when this child head occurs.

At mode three, in the step 601, if after determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, RN equipment can be according to the time sequencing that satisfies first trigger condition, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter;

At mode three, can further include after the step 602:

Mode four, report the state of 10 times specific user terminal of RN equipment.

RN equipment is determined the user terminal that need carry out flow control according to the down buffer storage data volume of user terminal correspondence; Carry out the sign of the user terminal of flow control as required, determine the flow scheduling parameter.

Can be such as: RN equipment with the sign of user terminal as the flow scheduling parameter.

The sign of user terminal can be to distribute to the C-RNTI or the peculiar sign of user terminal of this user terminal.

Concrete, in the step 602, RN equipment is with MAC CE bearer traffic scheduling parameter, and particular logical channel number is placed the MAC head of this MAC CE correspondence, and wherein to be used to indicate the loading section of MAC correspondence be the MAC CE of bearer traffic scheduling parameter to logical channel number; Send the MAC PDU that comprises this MAC CE to the base station.

The sign of mode C1, report of user terminal and flow scheduling parameter.

The down buffer storage data volume that RN equipment carries out the user terminal correspondence of flow control with needs places the MAC CE of bearer traffic scheduling parameter, the flow scheduling parameter of this moment comprises the sign of user terminal and down buffer storage data volume two parts content of this terminal,, specifically referring to Fig. 5 G.

The sign of mode C2, report of user terminal.

At mode four, in the step 601, RN equipment can determine to satisfy second trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources the time, determine the flow scheduling parameter.

Wherein, determine to satisfy second trigger condition during a kind of in satisfying following condition of RN equipment:

In specific implementation process, RN equipment can be determined the 3rd threshold value and the 4th threshold value of user terminal correspondence according to the user terminal of setting up in advance and the corresponding relation of threshold value; Or, determine to send to the 3rd threshold value and the 4th threshold value of the type of service correspondence under the data of user terminal according to the type of service of setting up in advance and the corresponding relation of threshold value.

The corresponding relation of the corresponding relation of user terminal and threshold value and type of service and threshold value can be set up back notice RN equipment by the base station, also can set in agreement.

At mode four, in the step 601, after might occurring determining to satisfy a plurality of first trigger conditions, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment RN equipment can be according to the time sequencing that satisfies second trigger condition, down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

Because the down buffer storage data volume triggers greater than the 3rd threshold value, just have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, at this moment determined the flow scheduling parameter, and timer then triggers and is also keeping, so need the deletion timer to trigger, then, can further include after the step 602 at mode four:

All triggerings of determining before the last satisfied second trigger condition of RN unit deletion.

If periodic triggers and Event triggered, in the step 601, RN equipment can determine that needs carry out the user terminal of flow control according to following manner:

In satisfied second trigger condition is when arriving in the second triggering cycle, RN equipment is determined the down buffer storage data volume of each user terminal correspondence, and the down buffer storage data volume is carried out the user terminal (such as the user terminal of down buffer storage data volume maximum) of flow control as needs greater than the user terminal of first threshold; Or the downlink transmission parameters of definite each user terminal correspondence, and the user terminal (such as the user terminal of downlink transmission parameters maximum) that downlink transmission parameters is carried out flow control greater than the user terminal of second threshold value as needs;

Satisfy second trigger condition be the down buffer storage data volume of user terminal correspondence greater than the downlink transmission parameters of the 3rd threshold value or user terminal correspondence during greater than the 4th threshold value, RN equipment carries out greater than the user terminal of the 4th threshold value the down buffer storage data volume user terminal of flow control as needs greater than the 3rd threshold value or downlink transmission parameters.

If padding triggers, in the step 601, RN equipment can determine that needs carry out the user terminal of flow control according to following manner:

RN equipment is determined the down buffer storage data volume of each user terminal correspondence, and the down buffer storage data volume is carried out the user terminal (such as the user terminal of down buffer storage data volume maximum) of flow control as needs greater than the user terminal of the 3rd threshold value; Or

RN equipment is determined the downlink transmission parameters of each user terminal correspondence, and the user terminal (such as the user terminal of downlink transmission parameters maximum) that downlink transmission parameters is carried out flow control greater than the user terminal of the 4th threshold value as needs, wherein downlink transmission parameters equals the ratio of down buffer storage data volume He this family terminal corresponding return link data amount of user terminal correspondence.

Wherein, each threshold value can be set as required, and concrete can also can be set in agreement by notice RN equipment after the base station sets.

In the step 602, after the Event triggered, but as the ascending resource time spent, RN equipment can be by congested (being down buffer storage data volume or downlink transmission parameters) situation of the highest service priority or the user terminal of corresponding user terminal, and order reports each user terminal corresponding flow scheduling parameter from high in the end.

In specific implementation process, mode four can independently be used, and also can unite use with mode one, two or three.

Wherein, can further include after the step 602:

The data volume of descending back haul link is adjusted according to the flow scheduling parameter of receiving in step 603, base station.

In specific implementation process, the base station is according to the flow scheduling parameter of receiving from RN equipment, when adjusting the data volume of descending back haul link, if RN equipment adopts scheme four to report, the base station is according to the flow scheduling parameter of receiving, adjust the data volume that sends to the respective user terminal in the descending back haul link, promptly only reduce the downlink data amount that sends to specific user terminal (this user terminal identification is included among the DL buffer MAC CE).

In the step 603, when the data volume of descending back haul link is adjusted in the base station, can also adjust the directly downlink resource of the grand user terminal of management of base station, such as RN equipment down buffer storage data volume more for a long time, the base station is just many to grand user terminal allocation of downlink scheduling resource, reduces the downlink resource to RN equipment.

The base station can also be according to the flow scheduling parameter, adjust the sub-frame number of descending back haul link, concrete, if the information that the base station reports according to RN equipment, determine that back haul link downlink data amount is lower than the access link data volume for a long time, then the base station can increase the number of DL backhaul subframe;

If back haul link downlink data amount is higher than the access link data volume for a long time, the DLbackhaul number of sub-frames can be reduced in the base station, makes RN equipment have more subframes to can be used for the downlink transfer of access link.

As shown in Figure 7, second kind of method of adjusting data volume of the embodiment of the invention comprises the following steps:

Step 701, base station receive the flow scheduling parameter from RN equipment, and wherein the flow scheduling parameter is that RN equipment is determined according to the down buffer storage data volume.

Wherein, RN equipment is determined the particular content of flow scheduling parameter according to the down buffer storage data volume, can not repeat them here referring to first kind of corresponding contents of adjusting the method for data volume of the embodiment of the invention.

Step 702, base station according to receive according to the flow scheduling parameter, adjust the data volume of descending back haul link.

Wherein, the particular content of the data volume of descending back haul link is adjusted according to the flow scheduling parameter in the base station, can not repeat them here referring to first kind of corresponding contents of adjusting the method for data volume of the embodiment of the invention.

If the base station also receives the sign from the user terminal of RN equipment in the step 701; Then the data volume that sends to the sign corresponding user terminal in the descending back haul link is adjusted according to the flow scheduling parameter of receiving in the base station, base station in the step 702.

In the step 702, self directly downlink resource of the grand UE of management can also be adjusted according to the flow scheduling parameter in the base station.

Wherein, the base station can not repeat them here referring to first kind of corresponding contents of adjusting the method for data volume of the embodiment of the invention according to the particular content of the downlink resource of the grand UE of flow scheduling parameter adjustment.

In the step 702, the sub-frame number of descending back haul link can also be adjusted according to the flow scheduling parameter in the base station.

Wherein, the base station can not repeat them here referring to first kind of corresponding contents of adjusting the method for data volume of the embodiment of the invention according to the particular content according to the sub-frame number of the descending back haul link of flow scheduling parameter adjustment.

From the foregoing description as can be seen: embodiment of the invention RN equipment is determined the flow scheduling parameter according to the down buffer storage data volume; RN equipment asks described base station according to described flow scheduling parameter to base station transmitted traffic scheduling parameter, adjusts the data volume of descending back haul link.

Because DeNB can control the downlink data amount in the LTE-A system, avoid because the very difficult downlink data downlink data congested or R-UE of the downlink data amount being controlled the RN equipment of appearance of DeNB postpones, thereby reduced the delay of downlink data, improved data transmission efficiency and systematic function.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. a method of adjusting data volume is characterized in that, this method comprises:

2. the method for claim 1 is characterized in that, described RN equipment determines that the flow scheduling parameter comprises:

Described RN equipment is determined the flow scheduling parameter according to the down buffer storage data volume of logic channel correspondence;

Described RN equipment sends described flow scheduling parameter to the base station and comprises:

Described RN equipment carries described flow scheduling parameter with control unit, and sends described control unit to the base station.

3. method as claimed in claim 2 is characterized in that, described control unit is media access control layer control unit MAC CE;

Described RN equipment carries described flow scheduling parameter with MAC CE, and logical channel number placed the MAC head of this MAC CE correspondence, it is the MAC CE that carries the flow scheduling parameter of RN equipment that wherein said logical channel number is used to indicate the corresponding loading section of described MAC head;

Described RN equipment sends the descending media access control protocol data unit MAC PDU that comprises this MAC CE and corresponding MAC head to the base station.

4. method as claimed in claim 3 is characterized in that, described RN equipment determines that the flow scheduling parameter comprises:

Described RN equipment is determined the down buffer storage data volume sum of all logic channel correspondences, and according to described down buffer storage data volume sum, determines the flow scheduling parameter.

5. method as claimed in claim 3 is characterized in that, described RN equipment determines that the flow scheduling parameter comprises:

Described RN equipment is determined the logic channel in each logic channel group according to the logic channel group of dividing in advance;

Described RN equipment is determined the down buffer storage data volume of this logic channel group correspondence when having only a logic channel in the logic channel group that corresponding down buffer storage data are arranged;

Described RN equipment is determined the flow scheduling parameter according to the down buffer storage data volume of this logic channel group correspondence;

Described RN equipment also comprised before the base station sends described flow scheduling parameter:

Described RN equipment is determined the logic channel group id of this logic channel group correspondence according to the corresponding relation of predefined logic channel group and logic channel group id;

Behind the described logic channel group id and described flow scheduling Wire Parameters that described RN equipment will be determined, place the MAC CE of bearer traffic scheduling parameter.

6. method as claimed in claim 3 is characterized in that, described RN equipment determines that the flow scheduling parameter comprises:

When the logic channel of described RN equipment in a plurality of logic channel groups are arranged has corresponding down buffer storage data, determine the down buffer storage data volume of all logic channel group correspondences;

Described RN equipment is determined each logic channel group corresponding flow scheduling parameter respectively according to the down buffer storage data volume of each logic channel group correspondence;

Described RN equipment all places each flow scheduling parameter the MAC CE of bearer traffic scheduling parameter.

7. as claim 5 or 6 described methods, it is characterized in that all logic channels in described each logic channel group of dividing in advance belong to same sub-district.

8. method as claimed in claim 7 is characterized in that, described RN equipment also comprised before the base station sends described MAC CE:

Described RN equipment is determined each logic channel group corresponding district sign;

Described RN equipment places each logic channel group corresponding district sign the MAC CE of MAC of MAC CE correspondence of the bearer traffic scheduling parameter or bearer traffic scheduling parameter or as the MACPDU head of MAC independently.

9. the method for claim 1 is characterized in that, described RN equipment determines that the flow scheduling parameter comprises:

Described RN equipment is determined link corresponding information bit value according to the down buffer storage data volume, and according to described link information bit value, determines the value of flow scheduling parameter, and wherein said link information bit value is used to indicate the state of down buffer storage data volume;

Described RN equipment sends by Physical Uplink Shared Channel PUSCH resource or Physical Uplink Control Channel PUCCH resource described flow scheduling parameter to the base station.

10. method as claimed in claim 9 is characterized in that, described RN equipment sends by the PUSCH resource described flow scheduling parameter and comprises to the base station:

Described RN equipment sends by the reserved bit in special-purpose PUCCH resource or the special MAC head described flow scheduling parameter to the base station.

11., it is characterized in that described RN equipment is determined also to comprise before the flow scheduling parameter as claim 1～6 or the described method of 9 arbitrary claims:

Described RN equipment determine to satisfy first trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources;

Described RN equipment determines that the flow scheduling parameter comprises:

Described RN equipment is according to the time sequencing that satisfies first trigger condition, and the down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

12. method as claimed in claim 11 is characterized in that, determines to satisfy first trigger condition during a kind of in satisfying following condition and comprises:

The first triggering cycle arrived;

The down buffer storage data volume is greater than first threshold value;

The down buffer storage data volume is less than second threshold value.

13. method as claimed in claim 11 is characterized in that, described RN equipment also comprises after the base station sends described flow scheduling parameter:

Described described the last time of RN unit deletion is satisfied all triggerings of determining before first trigger condition.

14., it is characterized in that described RN equipment is determined also to comprise before the flow scheduling parameter as claim 1～6 or the described method of 9 arbitrary claims:

Described RN equipment determine to have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources.

15., it is characterized in that described RN equipment determines that the flow scheduling parameter comprises as claim 1,2,3 or 9 described methods:

Described RN equipment is determined the user terminal that need carry out flow control according to the down buffer storage data volume of user terminal correspondence;

Described RN equipment carries out the sign of the user terminal of flow control as required, determines the flow scheduling parameter;

Described RN equipment carries described flow scheduling parameter with MAC CE, and particular logical channel number placed the MAC head of this MAC CE correspondence, it is the MAC CE of bearer traffic scheduling parameter that wherein said logical channel number is used to indicate the loading section of described MAC head correspondence;

Described RN equipment sends the described MAC PDU that comprises this MAC CE to the base station;

Described RN equipment also comprises after the base station sends described flow scheduling parameter:

The data volume that sends to described user terminal in the descending back haul link is adjusted according to the flow scheduling parameter of receiving in described base station.

16. method as claimed in claim 15 is characterized in that, described RN equipment also comprised before the base station sends described flow scheduling parameter:

The down buffer storage data volume that described RN equipment carries out the user terminal correspondence of flow control with needs places the MAC CE of bearer traffic scheduling parameter.

17. method as claimed in claim 15 is characterized in that, described RN equipment is determined also to comprise before the flow scheduling parameter:

Described RN equipment determine to satisfy second trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources;

Described RN equipment determines that the flow scheduling parameter comprises:

Described RN equipment is according to the time sequencing that satisfies second trigger condition, and the down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

18. method as claimed in claim 17 is characterized in that, determines to satisfy second trigger condition during a kind of in satisfying following condition and comprises:

The second triggering cycle arrived;

19. method as claimed in claim 18 is characterized in that, this method also comprises:

Described RN equipment is determined the 3rd threshold value and the 4th threshold value of user terminal correspondence according to the user terminal of setting up in advance and the corresponding relation of threshold value; Or

Described RN equipment is according to the type of service of setting up in advance and the corresponding relation of threshold value, determines to send to the 3rd threshold value and the 4th threshold value of the type of service correspondence under the data of user terminal.

20. method as claimed in claim 18 is characterized in that, described RN equipment determines that the user terminal that need carry out flow control comprises:

In satisfied second trigger condition is when arriving in the second triggering cycle, and described RN equipment is determined the down buffer storage data volume of each user terminal correspondence, and the down buffer storage data volume is carried out the user terminal of flow control as needs greater than the user terminal of first threshold; Or the downlink transmission parameters of definite each user terminal correspondence, and the user terminal that downlink transmission parameters is carried out flow control greater than the user terminal of second threshold value as needs;

Satisfy second trigger condition be the down buffer storage data volume of user terminal correspondence greater than the downlink transmission parameters of the 3rd threshold value or user terminal correspondence during greater than the 4th threshold value, described RN equipment carries out greater than the user terminal of the 4th threshold value the down buffer storage data volume user terminal of flow control as needs greater than the 3rd threshold value or downlink transmission parameters.

21. method as claimed in claim 17 is characterized in that, described RN equipment also comprises after the base station sends described flow scheduling parameter:

Described described the last time of RN unit deletion is satisfied all triggerings of determining before second trigger condition.

22. method as claimed in claim 15 is characterized in that, described RN equipment is determined also to comprise before the flow scheduling parameter:

23. method as claimed in claim 22 is characterized in that, described RN equipment determines that the user terminal that need carry out flow control comprises:

Described RN equipment is determined the down buffer storage data volume of each user terminal correspondence, and the down buffer storage data volume is carried out the user terminal of flow control as needs greater than the user terminal of the 3rd threshold value; Or

Described RN equipment is determined the downlink transmission parameters of each user terminal correspondence, and the user terminal that downlink transmission parameters is carried out flow control greater than the user terminal of the 4th threshold value as needs, wherein downlink transmission parameters equals the ratio of down buffer storage data volume He this family terminal corresponding return link data amount of user terminal correspondence.

24. the method for claim 1 is characterized in that, described RN equipment also comprises after the base station sends described flow scheduling parameter:

The downlink resource of the grand user terminal UE that directly manages the base station is adjusted according to described flow scheduling parameter in described base station.

25., it is characterized in that described RN equipment also comprises as claim 1 or 24 described methods after the base station sends described flow scheduling parameter:

The sub-frame number of descending back haul link is adjusted according to described flow scheduling parameter in described base station.

26. a method of adjusting data volume is characterized in that, this method comprises:

27. method as claimed in claim 26 is characterized in that, described base station also receives the sign from the user terminal of RN equipment;

The data volume that descending back haul link is adjusted in described base station comprises:

The data volume that sends to described sign corresponding user terminal in the descending back haul link is adjusted according to the flow scheduling parameter of receiving in described base station.

28. method as claimed in claim 26 is characterized in that, this method also comprises:

Self directly downlink resource of the grand user terminal UE of management is adjusted according to described flow scheduling parameter in described base station.

29., it is characterized in that this method also comprises as the described base station of the arbitrary claim of claim 26～29:

30. a system that adjusts data volume is characterized in that, this system comprises:

31. system as claimed in claim 30 is characterized in that, described RN equipment is used for:

According to the down buffer storage data volume of logic channel correspondence, determine the flow scheduling parameter, carry described flow scheduling parameter with control unit, and send described control unit to the base station.

32. system as claimed in claim 31 is characterized in that, described RN equipment is used for:

Down buffer storage data volume according to the logic channel correspondence, determine the flow scheduling parameter, carry described flow scheduling parameter with media access control layer control unit MAC CE, and logical channel number is placed the MAC head of this MACCE correspondence, it is the MAC CE of the flow scheduling parameter of carrying RN equipment that wherein said logical channel number is used to indicate the corresponding loading section of described MAC head, sends the descending media access control protocol data unit MAC PDU that comprises this MACCE and corresponding MAC head to the base station.

33. system as claimed in claim 32 is characterized in that, described RN equipment is used for:

According to the down buffer storage data volume, determine link corresponding information bit value, and according to described link information bit value, determine the value of flow scheduling parameter, described flow scheduling parameter is sent to the base station by Physical Uplink Shared Channel PUSCH resource or Physical Uplink Control Channel PUCCH resource, and wherein said link information bit value is used to indicate the state of down buffer storage data volume.

34., it is characterized in that described RN equipment is used for as the described system of the arbitrary claim of claim 30～33:

Down buffer storage data volume according to the user terminal correspondence, definite needs carry out the user terminal of flow control, carry out the sign of the user terminal of flow control as required, determine the flow scheduling parameter, carry the described flow scheduling parameter of described RN equipment with MAC CE, and particular logical channel number is placed the MAC head of this MAC CE correspondence, it is the MAC CE of bearer traffic scheduling parameter that wherein said logical channel number is used to indicate the corresponding loading section of described MAC head, send the described MAC PDU that comprises this MAC CE to the base station, be used to ask the base station according to the flow scheduling parameter of receiving, adjust the data volume that sends to described user terminal in the descending back haul link.

35. a via node RN equipment is characterized in that, this RN equipment comprises:

36. RN equipment as claimed in claim 35 is characterized in that, described parameter determination module is used for:

According to the down buffer storage data volume of logic channel correspondence, determine the flow scheduling parameter;

Described sending module is used for:

Carry described flow scheduling parameter with control unit, and send described control unit to the base station.

37. RN equipment as claimed in claim 36 is characterized in that, described sending module is used for:

Carry described flow scheduling parameter with media access control layer control unit MAC CE, and logical channel number is placed the MAC head of this MAC CE correspondence, send the descending media access control protocol data unit MAC PDU that comprises this MAC CE and corresponding MAC head to the base station, it is the MAC CE of the flow scheduling parameter of carrying RN equipment that wherein said logical channel number is used to indicate the corresponding loading section of described MAC head.

38. RN equipment as claimed in claim 37 is characterized in that, described parameter determination module is used for:

Determine the down buffer storage data volume sum of all logic channel correspondences, and, determine the flow scheduling parameter according to described down buffer storage data volume sum.

39. RN equipment as claimed in claim 37 is characterized in that, described parameter determination module is used for:

According to the logic channel group of dividing in advance, determine the logic channel in each logic channel group, when having only a logic channel in the logic channel group that corresponding down buffer storage data are arranged, determine the down buffer storage data volume of this logic channel group correspondence, according to the down buffer storage data volume of this logic channel group correspondence, determine the flow scheduling parameter;

Described RN equipment also comprises:

First processing module, be used for corresponding relation according to predefined logic channel group and logic channel group id, determine the logic channel group id of this logic channel group correspondence, behind the described logic channel group id and described flow scheduling Wire Parameters determined, place the MAC CE of bearer traffic scheduling parameter.

40. RN equipment as claimed in claim 37 is characterized in that, described parameter determination module is used for:

According to the logic channel group of dividing in advance, determine the logic channel in each logic channel group, when the logic channel in a plurality of logic channel groups are arranged has corresponding down buffer storage data, determine the down buffer storage data volume of all logic channel group correspondences, according to the value of the down buffer storage data volume of each logic channel group correspondence, determine each logic channel group corresponding flow scheduling parameter respectively;

Described RN equipment also comprises:

Second processing module is used for each flow scheduling parameter is all placed the MAC CE of bearer traffic scheduling parameter.

41., it is characterized in that all logic channels in described each logic channel group of dividing in advance belong to same sub-district as claim 39 or 40 described RN equipment.

42. RN equipment as claimed in claim 41 is characterized in that, described RN equipment also comprises:

The 3rd processing module, be used for determining each logic channel group corresponding district sign, each logic channel group corresponding district sign placed the MAC CE of MAC of MAC CE correspondence of the bearer traffic scheduling parameter or bearer traffic scheduling parameter or as the MAC PDU head of MAC independently.

43. RN equipment as claimed in claim 35 is characterized in that, described parameter determination module is used for:

According to the down buffer storage data volume, determine link corresponding information bit value, and, determine the value of flow scheduling parameter that wherein said link information bit value is used to indicate the state of down buffer storage data volume according to described link information bit value;

Described sending module is used for:

Described flow scheduling parameter is sent to the base station by Physical Uplink Shared Channel PUSCH resource or Physical Uplink Control Channel PUCCH resource.

44. RN equipment as claimed in claim 43 is characterized in that, described sending module is used for:

By the PUSCH resource when the base station sends, described flow scheduling parameter is sent to the base station by the reserved bit in special-purpose PUCCH resource or the special MAC head.

45., it is characterized in that described RN equipment also comprises as claim 35～39 or the described RN equipment of 43 arbitrary claims:

First trigger module is used for determine satisfying first trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, trigger described parameter determination module and determine the flow scheduling parameter;

Described parameter determination module is used for:

According to the time sequencing that satisfies first trigger condition, the down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

46. RN equipment as claimed in claim 45 is characterized in that, determines to satisfy first trigger condition during a kind of in satisfying following condition of described first trigger module:

The first triggering cycle arrived;

The down buffer storage data volume is greater than first threshold value;

The down buffer storage data volume is less than second threshold value.

47. RN equipment as claimed in claim 45 is characterized in that, described RN equipment also comprises:

First removing module is used at described sending module after the base station sends described flow scheduling parameter, deletes described the last time and satisfies all triggerings of determining before first trigger condition.

48., it is characterized in that described RN equipment also comprises as claim 35～39 or the described RN equipment of 43 arbitrary claims:

Second trigger module, be used for determining the back haul link uplink have can the surplus resources of bearer traffic scheduling parameter after, trigger described parameter determination module and determine the flow scheduling parameter.

49., it is characterized in that described parameter determination module is used for as claim 35～39 or the described RN equipment of 43 arbitrary claims:

According to the down buffer storage data volume of user terminal correspondence, determine the user terminal need carry out flow control, carry out the sign of the user terminal of flow control as required, determine the flow scheduling parameter;

Described sending module is used for:

Carry described flow scheduling parameter with MAC CE, and particular logical channel number is placed the MAC head of this MAC CE correspondence, it is the MAC CE of bearer traffic scheduling parameter that wherein said logical channel number is used to indicate the corresponding loading section of described MAC head, send the described MAC PDU that comprises this MAC CE to the base station, be used to ask the base station according to the flow scheduling parameter of receiving, adjust the data volume that sends to described user terminal in the descending back haul link.

50. RN equipment as claimed in claim 49 is characterized in that, described RN equipment also comprises:

Manages module everywhere, is used for the down buffer storage data volume that needs carry out the user terminal correspondence of flow control is placed the MAC CE of bearer traffic scheduling parameter.

51. RN equipment as claimed in claim 49 is characterized in that, described RN equipment also comprises:

The 3rd trigger module is used for determine satisfying second trigger condition, and have in the back haul link uplink can the bearer traffic scheduling parameter surplus resources, trigger described parameter determination module and determine the flow scheduling parameter;

Described parameter determination module is used for:

According to the time sequencing that satisfies second trigger condition, the down buffer storage data volume when satisfying first trigger condition according to the last time is determined the flow scheduling parameter.

52. RN equipment as claimed in claim 51 is characterized in that, determines to satisfy second trigger condition during a kind of in satisfying following condition of described the 3rd trigger module:

The second triggering cycle arrived;

53. RN equipment as claimed in claim 52 is characterized in that, described the 3rd trigger module also is used for:

According to the user terminal of setting up in advance and the corresponding relation of threshold value, determine the 3rd threshold value and the 4th threshold value of user terminal correspondence; Or

54. RN equipment as claimed in claim 52 is characterized in that, described parameter determination module is used for:

In satisfied second trigger condition is when arriving in the second triggering cycle, determines the down buffer storage data volume of each user terminal correspondence, and the user terminal that the down buffer storage data volume is carried out flow control greater than the user terminal of first threshold as needs; Or the downlink transmission parameters of definite each user terminal correspondence, and the user terminal that downlink transmission parameters is carried out flow control greater than the user terminal of second threshold value as needs;

55. RN equipment as claimed in claim 51 is characterized in that, described RN equipment also comprises:

Second removing module is used at described sending module after the base station sends described flow scheduling parameter, deletes described the last time and satisfies all triggerings of determining before second trigger condition.

56. RN equipment as claimed in claim 49 is characterized in that, described RN equipment also comprises:

The 4th trigger module, be used for determining the back haul link uplink have can the surplus resources of bearer traffic scheduling parameter after, trigger described parameter determination module and determine the flow scheduling parameter.

57. RN equipment as claimed in claim 56 is characterized in that, described parameter determination module is used for:

Determine the down buffer storage data volume of each user terminal correspondence, and the down buffer storage data volume is carried out the user terminal of flow control greater than the user terminal of the 3rd threshold value as needs; Or

58. a base station is characterized in that, this base station comprises:

59. base station as claimed in claim 58 is characterized in that, described receiver module also is used for:

Reception is from the sign of the user terminal of RN equipment;

Described adjusting module is used for:

According to the flow scheduling parameter of receiving, adjust the data volume that sends to described sign corresponding user terminal in the descending back haul link.

60. base station as claimed in claim 58 is characterized in that, described adjusting module is used for:

According to described flow scheduling parameter, adjust the downlink resource of the grand user terminal UE that directly manages the base station.

61., it is characterized in that described adjusting module also is used for as the described base station of the arbitrary claim of claim 58～60:

According to described flow scheduling parameter, adjust the sub-frame number of descending back haul link.