CN101047425B

CN101047425B - Media access control dispatching method and system for enhancing special channel

Info

Publication number: CN101047425B
Application number: CN200610067077A
Authority: CN
Inventors: 朱才军; 朱卫东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-03-31
Filing date: 2006-03-31
Publication date: 2010-05-12
Anticipated expiration: 2026-03-31
Also published as: WO2007112646A1; CN101047425A

Abstract

A method for dispatching media access control of intensified special channel includes judging whether uplink transmission is on abnormal state or not and sending media access control dispatch commandof speed-down or holding speed to user according to occurred abnormal state if it is. The system for realizing said method is also disclosed.

Description

A kind of media access control dispatching method and system that strengthens dedicated channel

Technical field

The present invention relates to the dispatching technique in a kind of communication system, particularly a kind of medium access control (MAC-e) dispatching method and system that strengthens dedicated channel.

Background technology

3GPP R6 version has been introduced high speed uplink packet access (HSUPA), among the HSUPA, has increased enhancing dedicated channel (E-DCH) newly, and subscriber equipment (UE) sends upstream data by E-DCH to base station node B.In order to support HSUPA, a new MAC-e entity and a new MAC-es entity have been increased at medium access control (MAC) layer.Specifically: all increased MAC-e entity and MAC-es entity among the UE to each use E-DCH, each NodeB of this UE correspondence has disposed a MAC-e entity, has disposed a MAC-es entity at the Serving RNC (SRNC) of radio network controller (RNC).Be arranged in the access of the MAC-e entity control E-DCH of NodeB, the MAC-e entity among the NodeB is connected to the MAC-es entity that is arranged in SRNC.MAC-es entity among UE and the SRNC further is connected to dedicated channel media interviews control (MAC-d) entity of self.When actual figure reportedly send between MAC-e entity and the MAC-es entity, the data binding of a plurality of logic channels among the user is transmitted on a MAC-d stream, concrete binding relationship is determined by SRNC, and notice NodeB.For example: in the UTRAN side, the MAC-e entity of NodeB receives after the data of UE, belong to a user's MAC-e data allocations on one or several MAC-d streams according to the binding relationship handle, each MAC-d fails to be convened for lack of a quorum and sets up an Iub transmission bearer, by the transmission bearer of setting up, NodeB sends to RNC to data.After receiving, RNC according to binding relationship data are reverted to the data of MAC-es again.

Function relevant with HSUPA among the NodeB is carried out by the MAC-e entity, such as: MAC-e scheduling, MAC-e scheduling controlling, demultiplexing, the automatic repeat requests of mixing functions such as (HARQ).Wherein, the MAC-e scheduling feature mainly is the dispatch request according to UE, distributes the E-DCH local resource to carry out concrete scheduling for different UEs and distributes; MAC-e scheduling controlling function is responsible for receiving the scheduling that each UE is distributed in dispatch request and the transmission of E-DCH.Described MAC-e scheduling is by NodeB control, and the rule of following according to these control command needs based on up-downgoing control signaling and UE.During practical application, described MAC-e scheduling can be only to carry out at a user, also can carry out at a plurality of users.

Fig. 1 is for carrying out the system schematic of MAC-e scheduling in the prior art, this system comprises: UE11, NodeB12, wherein NodeB12 comprises: the information unit 12a that eats dishes without rice or wine, MAC-e scheduling unit 12b.

UE11, the information unit 12a that eats dishes without rice or wine in NodeB12 sends dispatch request, receives the dispatching command information that MAC-e scheduling unit 12b sends.

The information unit 12a that eats dishes without rice or wine among the NodeB12 receives the dispatch request that UE11 sends, and sends the information of eating dishes without rice or wine to MAC-e scheduling unit 12b.

MAC-e scheduling unit 12b among the NodeB12 receives the information of eating dishes without rice or wine that the information unit 12a that eats dishes without rice or wine sends, and sends dispatching command information to UE11.

System shown in Fig. 1 can pointer to a user, also can be at a plurality of users, wherein, if during at a user, then described UE11 is meant that certain user, the described information unit 12a that eats dishes without rice or wine, MAC-e scheduling unit 12b are at this user, if at a plurality of users, then described UE11 is meant that a plurality of users, the described information unit 12a that eats dishes without rice or wine, MAC-e scheduling unit 12b also are at a plurality of users.

Fig. 2 is for carrying out the process schematic diagram of MAC-e scheduling in the prior art, this process comprises:

Step 201:MAC-e dispatches beginning.

Described MAC-e scheduling can be at a user, also can be at a plurality of users.

Step 202: the user is carried out the MAC-e scheduling according to interface-free resources information.

Step 202 is described carries out MAC-e scheduling according to interface-free resources information to the user and be meant: MAC-e dispatches according to interface-free resources, user's up signaling, information such as service quality (QoS) requirement are dispatched HSUPA user, specifically: the eat dishes without rice or wine surplus of load of the difference estimation of the RTWP desired value that reception total bandwidth power (RTWP) value that NodeB measure to obtain according to self and SRNC dispose, then according to dispatch request from UE, the information relevant from the SRNC acquisition with QoS, information such as service priority are distributed the load surplus to UE, realize the scheduling behavior based on the load of eating dishes without rice or wine.Described RTWP value is a kind of measured value of 3GPP regulation, can be used for weighing the load state of uplink cells, and described RTWP desired value is a RTWP value of SRNC configuration.When NodeB carried out up MAC-e scheduling, best scheduling result was that sub-district RTWP measured value and the RTWP desired value after the scheduling is consistent.

If the scheduling of MAC-e described in the step 201 is at a user, then be exactly that this user is carried out the MAC-e scheduling in the step 202, if the scheduling of MAC-e described in the step 201 is at a plurality of users, then be exactly in the step 202 to respectively each user being carried out the MAC-e scheduling.

Step 203: finish the MAC-e scheduling according to the restraint of loads of eating dishes without rice or wine.

In NodeB, after the MAC-e entity carries out concrete scheduling distribution, the maximum uplink resources available of UE is notified to this UE by scheduling authorization.Scheduling authorization comprises two types, and one is absolute grant (AG), and AG provides the upper limit of the up maximum power resource that UE can use; Another is relative authorization (RG), and RG increases or reduce a relative value in order to expression UE on the power resource basis that last scheduling is used.UE is according to the AG or the RG that receive from NodeB, and according to self data cached situation, information such as the maximum transmit power limit of UE send data to NodeB.

Frequent congested data-bag lost or the time delay of causing to occur excessive for fear of the Iub transmit port that connects NodeB and RNC, 3GPP R6 has worked out following mechanism: SRNC and has detected the uplink data transmission frame that NodeB sends, if in certain FP carrying, find to have upstream data lose or time delay excessive, then send out the congested indication of transmission to NodeB, indication NodeB controls the transmission of upstream data in this FP carrying.Described FP carrying is an Iub bearing resource of distributing for a certain user between NodeB and the SRNC.

Fig. 3 is that RNC sends the system schematic of transmitting congested indication to NodeB in the prior art, and this system comprises: NodeB31, RNC32, wherein, NodeB31 comprises: congested indication receiving element 31c.

Congested indication receiving element 31c among the NodeB31 receives the congested indication of transmission that RNC32 sends.

RNC32 sends the congested indication of transmission to congested indication receiving element 31c.

Congested indication receiving element 31c shown in Figure 3 can be at a user, also can be at a plurality of users.

In the prior art, the congested indication receiving element that NodeB shown in Figure 3 comprises, and separate between the information unit of eating dishes without rice or wine that comprises of NodeB shown in Figure 1, MAC-e scheduling unit, there is not association.

The shortcoming of prior art is:

1) only considered the load resource of eating dishes without rice or wine in the NodeB sub-district based on the MAC-e dispatching algorithm of the load of eating dishes without rice or wine, but single user's maximum stream flow of HSUPA user's up direction can be up to 5.76Mbps, present very strong burst, the resource of the defeated bandwidth of Iub oral instructions was limited during real system was used, if NodeB does not consider the distribution and the control of Iub transmission bandwidth resource when MAC-e dispatches, under transmission bandwidth configuration condition of limited, it is congested uplink probably to occur, and cause loss of data, problems such as time delay is excessive, influence transmission quality, the QoS of transmission can't be guaranteed.

2) if in certain FP carrying, find to have upstream data lose or time delay excessive, RNC is to the congested indication of Node feedback transmission, indication NodeB controls the transmission of upstream data in this FP carrying.If do not dispatch at the special MAC-e of this congestion condition this moment, Tiao Du result might be that this user of requirement continues raising speed or reduction of speed or maintenance so, if the result of scheduling is a raising speed, the upstream data that NodeB receives can be more, but need to reduce the data that send to RNC, over-burden to cause NodeB easily.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of MAC-e dispatching method, can reduce loss of data, reduces propagation delay time, and then improves transmission quality.

Another main purpose of the present invention is to provide a kind of MAC-e dispatching patcher, can reduce loss of data, reduces propagation delay time, and then improves transmission quality.

Technical scheme of the present invention is achieved in that

A kind of media access control MAC-e dispatching method that strengthens dedicated channel, when carrying out the MAC-e scheduling, the method includes the steps of:

A, judge whether the uplink of Iub transmit port unusual condition occurs, if, execution in step B then;

B, send reduction of speed or keep the MAC-e dispatching command of speed to the user according to the unusual condition that occurs.

The described unusual condition that occurs is: it is congested transmission to occur;

Steps A is described to be judged as: judge the Iub transmit port whether have the user occur transmitting congested, if then unusual condition appears in the uplink of Iub transmit port; Otherwise unusual condition does not appear in the uplink of Iub transmit port;

Described step B is: to the MAC-e dispatching command that the congested user of transmission sends reduction of speed occurring;

Further comprise step C11 after the step B:

C11, carry out the MAC-e scheduling to the congested user of transmission not occurring.

Further comprise between step B and the step C11: judged whether that the user receives relieve congestion indication, if do not have, execution in step C11 then, otherwise stop to after the congested user of transmission occurring and sending the reduction of speed dispatching command execution in step C11.

The described unusual condition that occurs is: it is excessive metadata cache to occur;

Steps A is described to be judged as: it is excessive to judge whether the Iub transmit port user data cache occurs, if then unusual condition appears in the uplink of Iub transmit port; Otherwise unusual condition does not appear in the uplink of Iub transmit port;

Described step B is: to the MAC-e dispatching command that user on the excessive transmit port of metadata cache sends reduction of speed occurring;

Further comprise after the step B: the user who does not belong to the excessive transmit port of metadata cache is carried out the MAC-e scheduling.

Comprise before the steps A: set in advance the metadata cache threshold value;

The described judgement of steps A is carried out according to the result of comparing data cache size and the comparison of buffer threshold value.

The described unusual condition that occurs is: exist scheduling back uplink traffic to surpass the transmit port of the Iub transmit port bandwidth of configuration;

Further comprise before the steps A: the user is carried out the MAC-e scheduling, and calculate the uplink traffic of scheduling back transmit port;

Steps A is described to be judged as: judge whether to exist scheduling back uplink traffic to surpass the transmit port of the Iub transmit port bandwidth of configuration, if exist, then unusual condition appears in the uplink of Iub transmit port; Otherwise unusual condition does not appear in the uplink of Iub transmit port;

Described step B is: judge that whether having scheduling result on the transmit port of uplink traffic above the Iub transmit port bandwidth of configuration is the user of raising speed, if exist, then be that raising speed user's dispatching command is revised as reduction of speed MAC-e dispatching command or keeps speed MAC-e dispatching command with scheduling result; Otherwise finish the MAC-e scheduling flow.

Further comprise before the step C11:

C111, to judge whether user data cache to occur excessive, if, execution in step C112 then, otherwise execution in step C113;

C112, to the MAC-e dispatching command that user on the excessive transmit port of metadata cache sends reduction of speed occurring;

Described step C11 is specially step C113:

C113, carry out the MAC-e scheduling to the congested and user that do not belong to the excessive transmit port of metadata cache of transmission not occurring.

Further comprise after the step C113:

The uplink traffic of C21, calculating MAC-e scheduling back transmit port;

C22, judge whether to exist scheduling back uplink traffic to surpass the transmit port of the Iub transmit port bandwidth of configuration, if exist, execution in step C23 then; Otherwise finish the MAC-e scheduling flow;

C23, judge that uplink traffic surpasses whether there is scheduling result on the transmit port of Iub transmit port bandwidth of configuration be the user of raising speed, if exist, execution in step C24 then; Otherwise finish the MAC-e scheduling flow;

C24, be that raising speed user's MAC-e dispatching command is revised as reduction of speed or keeps speed MAC-e dispatching command with scheduling result.

Be judged as in the steps A and do not occur further comprising behind the unusual condition: the user is carried out the MAC-e scheduling.

A kind of MAC-e dispatching patcher comprises: user equipment (UE), comprise the NodeB of the information unit of eating dishes without rice or wine, MAC-e scheduling unit, and UE sends dispatch request to the information unit of eating dishes without rice or wine; The information unit of eating dishes without rice or wine sends the information of eating dishes without rice or wine to the MAC-e scheduling unit, and NodeB further comprises: the uplink detecting unit;

The uplink detecting unit is used for the uplink information to MAC-e scheduling unit transmission Iub transmit port;

The MAC-e scheduling unit is used for according to the MAC-e dispatching command of the uplink information of receiving to UE transmission reduction of speed or maintenance speed.

Described uplink detecting unit is made up of congested indication receiving element and/or Iub information unit;

This system further comprises: radio network controller (RNC);

Congested indication receiving element receives the transmission congestion information that RNC sends, and sends the transmission congestion information to the MAC-e scheduling unit; The MAC-e scheduling unit sends reduction of speed MAC-e dispatching command according to the transmission congestion information of receiving to UE;

The Iub information unit receives the Iub transmit port information that RNC sends, and sends Iub transmit port information to the MAC-e scheduling unit; The MAC-e scheduling unit sends the MAC-e dispatching command of reduction of speed or maintenance speed to UE according to the Iub transmit port information of receiving.

Described uplink detecting unit comprises: buffer unit;

Buffer unit receives the user data that the information unit of eating dishes without rice or wine sends, and sends the excessive information of metadata cache to the MAC-e scheduling unit; The MAC-e scheduling unit sends reduction of speed MAC-e dispatching command according to the excessive information of receiving of metadata cache to UE.

The present invention has following beneficial effect:

1) we are bright is the dispatching command that the user of raising speed sends maintenance speed or reduction of speed by scheduling result in the Iub transmit port bandwidth for transmission port that surpasses configuration for uplink traffic, can control uplink traffic in advance, avoid congested or excessive loss of data that causes of metadata cache of single user of Iub mouth or time delay excessive thus as far as possible, and then can improve transmission quality, guarantee the QoS. of Iub transmission

2) we are bright carries out reduction of speed to the congested user of transmission occurring by the MAC-e scheduling, can remove the transmission congestion state of respective user effectively apace, avoids loss of data or time delay excessive, and then improves transmission quality.

3) we are bright carries out reduction of speed to the excessive user of buffer memory occurring by the MAC-e scheduling, can remove the excessive state of buffer memory of respective user effectively apace, avoids loss of data or time delay excessive, and then improves transmission quality.

4) among the HSUPA, the transmitting power that the MAC-e of NodeB scheduling can limited subscriber, user's available launch power directly has influence on its data and sends, and promptly by the MAC-e scheduling of NodeB, NodeB can limit the data transmitted traffic of UE.The present invention utilizes this characteristic of HSUPA, information such as the transmission bandwidth of the Iub transmit port that detects in conjunction with NodeB, flow, and NodeB can carry out scheduling to the user according to available Iub transmission bandwidth resource, can make full use of transmission bandwidth.

Description of drawings

Fig. 1 is for carrying out the system schematic of MAC-e scheduling in the prior art;

Fig. 2 is for carrying out the process schematic diagram of MAC-e scheduling in the prior art;

Fig. 3 is the system schematic that RNC sends the congested indication of transmission in the prior art to NodeB;

Fig. 4 is the system schematic of MAC-e scheduling in the embodiment of the invention 1;

Fig. 5 is the process schematic diagram of MAC-e scheduling in the embodiment of the invention 1;

Fig. 6 is the system schematic of MAC-e scheduling in the embodiment of the invention 2;

Fig. 7 is the process schematic diagram of MAC-e scheduling in the embodiment of the invention 2;

Fig. 8 is the system schematic of MAC-e scheduling in the embodiment of the invention 3;

Fig. 9 is the process schematic diagram of MAC-e scheduling in the embodiment of the invention 3;

Figure 10 is the system schematic of MAC-e scheduling in the embodiment of the invention 4;

Figure 11 is the process schematic diagram of MAC-e scheduling in the embodiment of the invention 4.

Embodiment

Core concept of the present invention is: when carrying out the MAC-e scheduling, judge whether uplink unusual condition occurs, if, then send the MAC-e dispatching command of reduction of speed or maintenance speed to the user according to the unusual condition that occurs.

Described MAC-e scheduling can be at a user, also can be at a plurality of users, wherein, if at a user, then described user in the user sends is meant certain user, if at a plurality of users, then described user in the user sends is a user or a plurality of user, below all like this herein.

The described unusual condition that occurs is meant: have and may cause loss of data or the excessive situation of time delay, transmission is congested, metadata cache is excessive such as occurring, exist scheduling back uplink traffic to surpass one or more in the situations such as transmit port of Iub transmit port bandwidth of configuration.

MAC-e dispatching patcher of the present invention is except the described unit of Fig. 1, further comprise: the uplink detecting unit, the uplink detecting unit sends uplink information to the MAC-e scheduling unit, the MAC-e scheduling unit sends the dispatching command of reduction of speed or maintenance speed according to the uplink information of receiving to UE.Described uplink detecting unit is: detect the unit of uplink state, such as: one or more in congested indication receiving element, buffer unit, the Iub information unit; Described uplink information is: the information relevant with the uplink state, such as: one or more in transmission congestion information, the excessive information of metadata cache, the Iub transmit port information.

Below described herein UE, uplink detecting unit, MAC-e scheduling unit, congested indication receiving element, buffer unit, Iub information unit, and the information unit of eating dishes without rice or wine can be at users, also can be at a plurality of users.

Embodiment 1:

In the present embodiment, the uplink detecting unit is: congested indication receiving element; Uplink information is: the transmission congestion information.

Occurring unusual condition described in the present embodiment is meant: it is congested transmission to occur.

Fig. 4 is the system schematic of MAC-e scheduling in the present embodiment, and this system comprises: UE41, NodeB42, RNC43, wherein NodeB42 comprises: the information unit 42a that eats dishes without rice or wine, MAC-e scheduling unit 42b, congested indication receiving element 42c.

UE41, the information unit 42a that eats dishes without rice or wine in NodeB42 sends dispatch request, receives the dispatching command information that MAC-e scheduling unit 42b sends.

The information unit 42a that eats dishes without rice or wine among the NodeB42 receives the dispatch request that UE41 sends, and sends the information of eating dishes without rice or wine to MAC-e scheduling unit 42b.

MAC-e scheduling unit 42b among the NodeB42 receives the information of eating dishes without rice or wine that the information unit 42a that eats dishes without rice or wine sends, and the transmission congestion information that reception congestion indication receiving element 42c sends sends dispatching command information to UE41.

Congested indication receiving element 42c among the NodeB42 receives the transmission congestion information that RNC43 sends, and sends the transmission congestion information to MAC-e scheduling unit 42b.

RNC43 sends the transmission congestion information to congested indication receiving element 31c.

Fig. 5 is the process schematic diagram of MAC-e scheduling in the present embodiment, and this process comprises following steps:

Step 501: identical with step 201.

Step 502:MAC-e scheduling unit judged whether the user occur transmitting congested, if then execution in step 503, otherwise execution in step 504.

The described judgement of step 502 can be carried out according to the transmission congestion information that congested indication receiving element sends for the MAC-e scheduling unit, and the MAC-e scheduling unit can judge that according to the information of receiving which user occurs transmitting congested.The congested indication receiving element normally SRNC from RNC receives the congested indication of transmission, here, owing to the sudden characteristics of HSUPA and the accuracy of NodeB MAC-e scheduling, the reasons such as up-downgoing information distortion that the error code of eating dishes without rice or wine causes, exist transmission congested in the uplink usually.According to the R6 release protocol of 3GPP, after the appearance transmission was congested, the SRNC among the RNC can send the congested indication of transmission to NodeB, transmitted congested indication (TNL CONGESTION INDICATION) control frame such as sending.The frame structure of TNL CONGESTION INDICATION can be according to the description in 3GPP TS25.427 V6.4.0 (2005-09) agreement.TNL CONGESTIONINDICATION control frame can use the transmission congestion state on the transmission bearer of congestion state (Congestion Status) parametric representation correspondence in the agreement, such as: not congested by 0 expression; Keep by 1 expression; It is congested to represent that by 2 transmission delays cause; It is congested to represent that by 3 frame losings cause.According to the regulation of agreement, RNC detect transmission congested after, sending above-mentioned TNL CONGESTIONINDICATION control frame indication RNC to NodeB, to have detected transmission congested, this moment, Congestion Status parameter can be 1 or 2; Behind the relieve congestion, RNC also can send TNL CONGESTIONINDICATION control frame to NodeB, the indication relieve congestion, and this moment, Congestion Status parameter can be 0.

Step 503:MAC-e scheduling is to the dispatching command that the congested user of transmission sends reduction of speed occurring.

By step 503, MAC-e scheduling can reduce described user's upstream data transmission rate, and then can alleviate or to eliminate uplink congested.

After this step, directly execution in step 504, also can judge whether that earlier the user receives the relieve congestion indication that RNC issues by the MAC-e scheduling unit, if do not have, then execution in step 504, otherwise stop behind the reduction of speed dispatching command of receiving relieve congestion indication user transmission, execution in step 504. such as: if NodeB receives each user's TNL CONGESTION INDICATION control frame and is designated as congested generation, then NodeB forces to send the dispatching command of reduction of speed from current time to this type of user when MAC-e dispatches, until receive TNL CONGESTIONINDICATION control frame and indication relieve congestion that RNC issues.

Step 504: do not carry out the MAC-e scheduling to the congested user of the transmission of appearance according to interface-free resources information.

Step 504 is basic identical with step 202, if just carried out step 503 before the step 504, then only carries out the MAC-e scheduling to the congested user of transmission not occurring in the step 504.

Step 505: identical with step 203.

Embodiment 2:

In the present embodiment, the uplink detecting unit is: buffer unit; Uplink information is: the excessive information of metadata cache.

Occurring unusual condition described in the present embodiment is meant: it is excessive metadata cache to occur.

Fig. 6 is the system schematic of MAC-e scheduling in the present embodiment, and this system comprises: UE41, NodeB42, wherein NodeB42 comprises: the information unit 42a that eats dishes without rice or wine, MAC-e scheduling unit 42b, buffer unit 42d.

UE41 is with identical described in Fig. 4.

The information unit 42a that eats dishes without rice or wine receives the dispatch request that UE41 sends, and sends the information of eating dishes without rice or wine to MAC-e scheduling unit 42b, receives the user data that UE41 sends, and sends to buffer unit 42d.

MAC-e scheduling unit 42b receives the information of eating dishes without rice or wine that the information unit 42a that eats dishes without rice or wine sends, and receives the excessive information of metadata cache that buffer unit 42d sends, and sends dispatching command information to UE41.

Buffer unit 42d receives the user data that the information unit 42a that eats dishes without rice or wine sends, and sends the excessive information of metadata cache to MAC-e scheduling unit 42b.

Fig. 7 is the process schematic diagram of MAC-e scheduling in the present embodiment, and this process comprises following steps:

Step 701: identical with step 501.

It is excessive that step 702:MAC-e scheduling unit judges whether user data cache to occur, if then execution in step 703, otherwise execution in step 704.

The described judgement of step 702, can carry out according to the excessive information of metadata cache that buffer unit sends for the MAC-e scheduling unit, MAC-e in conjunction with the Iub transmit port information that the user uses, gets final product the user of data carried by data correspondence in the excessive Iub transmit port of judgment data buffer memory according to the information of receiving.Here; at the bigger characteristics of HSUPA upstream data burst; NodeB can provide certain Iub transmit port upstream data buffer memory ability usually; the transmitting capacity that provides when uplink is than the up data volume that sends hour of needing; NodeB the metadata cache that can't in time send is to buffering area; be in the buffer unit, so that can effectively avoid losing of peak-data when burst data.The upstream data buffer memory of NodeB can adopt at each Iub transmission transmit port provides the mode of data buffer zone or other modes to realize.During practical application, NodeB can periodically detect the buffer memory of up Iub transmit port.As for the Iub transmit port information that the user uses, when normally HSUPA user inserted NodeB, RNC notified NodeB to set up the transmission bearer information that this user uses by the mode of high-level signaling, comprises the professional Iub transmit port of using etc.

In the step 702, when whether the judgment data buffer memory is excessive, cache size and the threshold value that sets in advance can be compared.The size of described threshold value can be according to the professional receptible time delay size of comprehensive transmission, and buffer size is provided with, and the size of concrete threshold value does not influence the realization of the described process of present embodiment.

Step 703:MAC-e scheduling is to the dispatching command that user on the excessive Iub transmit port of metadata cache sends reduction of speed occurring.

After this step, directly execution in step 704, also can the MAC-e scheduling unit judge earlier whether data in the buffering area send to finish, if not, then execution in step 704, otherwise cancellation is to after metadata cache occurring and crossing the reduction of speed dispatching command that the large user sends out, execution in step 704.

During practical application, NodeB can keep the monitoring to transmission buffer always, metadata cache occurs too much such as the thresholding that surpasses a setting if find certain Iub transmit port corresponding buffer region, mean that then the transmitting capacity of this Iub transmit port of NodeB can't satisfy the requirement that data send; After the appearance buffer memory is unusual, during MAC-e entity operation dispatching the HSUPA user who uses this transmit port is sent the reduction of speed order, control UE reduces the upstream data transmission rate.

Step 704: the user who does not belong to the excessive Iub transmit port of metadata cache is carried out the MAC-e scheduling according to interface-free resources information.

Step 704 is basic identical with step 202, if just carried out step 703 before the step 704, then only carries out the MAC-e scheduling to the excessive user of metadata cache not occurring in the step 704.

Step 705: identical with step 505.

Embodiment 3:

In the present embodiment, the uplink detecting unit is: the Iub information unit, uplink information is: Iub transmit port information.

Occurring unusual condition described in the present embodiment is meant: exist scheduling back uplink traffic to surpass the transmit port of the Iub transmit port bandwidth of configuration.

Fig. 8 is the system schematic of MAC-e scheduling in the present embodiment, and this system comprises: UE41, NodeB42, RNC43, wherein NodeB42 comprises: the information unit 42a that eats dishes without rice or wine, MAC-e scheduling unit 42b, Iub information unit 42e.

UE41, the information unit 42a that eats dishes without rice or wine are with identical described in Fig. 4.

MAC-e scheduling unit 42b receives the information of eating dishes without rice or wine that the information unit 42a that eats dishes without rice or wine sends, and receives the Iub transmit port information that Iub information unit 42e sends, and sends dispatching command information to UE41.

Iub information unit 42e receives the Iub transmit port information that RNC sends, and sends Iub transmit port information to MAC-e scheduling unit 42b.

RNC43 sends Iub transmit port information to Iub information unit 42e.

Fig. 9 is the process schematic diagram of MAC-e scheduling in the present embodiment, and this process comprises following steps:

Step 901: identical with step 501.

Step 902: according to interface-free resources information the user is carried out the MAC-e scheduling, and calculate the uplink traffic of scheduling back transmit port.

Step 902 is described carries out the MAC-e scheduling according to interface-free resources information to the user, identical with step 202.Usually, when the framework that the MAC-e entity provides according to agreement is carried out the MAC-e scheduling, the HSUPA user who has existed among the NodeB is sent out the dispatching command of raising speed or reduction of speed or maintenance, after producing dispatching command, NodeB can predict that according to scheduling result UE is by the maximum uplink data sending speed after the NodeB scheduling, and, can calculate the uplink flow on all Iub transmit pories of NodeB configuration in conjunction with the Iub transmit port configuration that each user uses.As for the Iub transmit port information that the user uses, when normally HSUPA user inserted NodeB, RNC notified NodeB to set up the transmission bearer information that this user uses by the mode of high-level signaling, comprised professional Iub transmit port of using and bandwidth etc.

In the step 902, normally dispatch the uplink traffic of just calculating behind the user after this user's scheduling, and, can calculate the total uplink traffic of all users in each Iub transmit port according to each user's uplink traffic.

Step 903:MAC-e scheduling unit judges whether to exist scheduling back uplink traffic to surpass the transmit port of the Iub transmit port bandwidth of configuration, if exist, then execution in step 904, otherwise execution in step 906.

The described judgement of step 903, can carry out according to the Iub transmit port information that the Iub information unit sends for the MAC-e scheduling unit, the MAC-e scheduling unit can judge according to the information of receiving whether the maximum uplink traffic of each Iub transmit port will be above the Iub transmit port maximum bandwidth of configuration.Described Iub transmit port information comprises: the maximum bandwidth that the Iub transmit port allows.The configuration when maximum bandwidth of described permission is set up in the base station usually, here, when the base station is set up, the information of configuration comprises: the resource information such as bandwidth of the Iub transmit port of using between NodeB and the RNC, each Iub transmit port configuration, the information relative fixed that is disposed, unless revise Iub transmit port band width configuration, otherwise can not become.

Whether the transmit port that surpasses described in the step 904:MAC-e scheduling unit determining step 903 exists scheduling result is the user of raising speed, if exist, then execution in step 905, otherwise execution in step 906.

Step 905: revising scheduling result is raising speed user's dispatching command.

The dispatching command of the described modification raising speed of step 905 can be for being revised as dispatching command maintenance speed or reduction of speed.Revise in the step 905 dispatching command target can for: the uplink traffic of scheduling back Iub transmit port is no more than the Iub transmit port bandwidth of configuration.

Step 906: identical with step 505.

Embodiment 4:

In the present embodiment, uplink occur unusual condition can for: occur transmission congested, occur metadata cache excessive, exist scheduling back uplink traffic to surpass one or more in the situations such as transmit port of Iub transmit port bandwidth of configuration.

Present embodiment is the combination of described 3 schemes respectively among embodiment 1～embodiment 3, and the system after the combination as shown in figure 10.

Figure 10 is the system schematic of MAC-e scheduling in the present embodiment, this system comprises: UE41, NodeB42, RNC43, wherein NodeB42 comprises: the information unit 42a that eats dishes without rice or wine, MAC-e scheduling unit 42b, congested indication receiving element 42c, buffer unit 42d, Iub information unit 42e.

The information unit 42a that eats dishes without rice or wine among the NodeB42 receives the dispatch request that UE41 sends, and receives the user data that UE41 sends, and sends to buffer unit 42d, sends the information of eating dishes without rice or wine to MAC-e scheduling unit 42b.

MAC-e scheduling unit 42b among the NodeB42, the reception information of eating dishes without rice or wine that information unit 42a sends of eating dishes without rice or wine, the congested indication of transmission that reception congestion indication receiving element 42c sends, receive the excessive information of metadata cache that buffer unit 42d sends, receive the Iub transmit port information that Iub information unit 42e sends, send dispatching command information to UE41.

Congested indication receiving element 42c among the NodeB42 receives the congested indication of transmission that RNC43 sends, and sends the congested indication of transmission to MAC-e scheduling unit 42b.

RNC43 sends the congested indication of transmission to congested indication receiving element 31c, sends Iub transmit port information to Iub information unit 42e.

Can make up by different sequencings when described respectively 3 schemes make up among embodiment 1～embodiment 3, Figure 11 is a kind of compound mode wherein, and process shown in Figure 11 comprises following steps:

Step 1101～step 1103: identical with step 501～step 503, just according to interface-free resources information other users are carried out the MAC-e scheduling after the step 503, and after the execution in step 1103, execution in step 1104.

Step 1104～step 1105: identical with step 702～step 703, just according to interface-free resources information other users are carried out the MAC-e scheduling after the step 703, and after the execution in step 1105, execution in step 1106.

Step 1106～step 1110: identical with step 902～step 906, just carry out the MAC-e scheduling to not occurring transmitting congested and not belonging to the user who the excessive transmit port of buffer memory occurs in the step 1106, and calculate the uplink traffic of each transmit port of scheduling back.

During practical application; distinguish described 3 schemes among embodiment 1～embodiment 3, can carry out the reasonable combination of two or three, such as: a kind of scheme after 3 scheme combination that provide among the embodiment 4; other reasonable combination all within protection range of the present invention, are not described in detail in this.

Among the present invention, the uplink detecting unit is except being one or more in congested indication receiving element, buffer unit, the Iub information unit, also can detecting the unit of uplink state for other.

Among the present invention, uplink information except can for: one or more in transmission congestion information, the excessive information of metadata cache, the Iub transmit port information, also can be other information.

Among the present invention, described occur unusual condition except can for: occur that transmission is congested, metadata cache is excessive, exist scheduling back uplink traffic to surpass one or more in the situations such as transmit port of Iub transmit port bandwidth of configuration, also can may cause loss of data or the excessive situation of time delay for other occurring.

The above is preferred embodiment of the present invention only, is not in order to limit protection scope of the present invention.

Claims

1. media access control MAC-e dispatching method that strengthens dedicated channel when carrying out the MAC-e scheduling, is characterized in that the method includes the steps of:

2. method according to claim 1 is characterized in that, the described unusual condition that occurs is: it is congested transmission to occur;

Further comprise step C11 after the step B:

3. method according to claim 2, it is characterized in that, further comprise between step B and the step C11: judged whether that the user receives the relieve congestion indication, if do not have, execution in step C11 then, otherwise stop to after the congested user of transmission occurring and sending the reduction of speed dispatching command execution in step C11.

4. method according to claim 1 is characterized in that, the described unusual condition that occurs is: it is excessive metadata cache to occur;

5. method according to claim 4 is characterized in that, comprises before the steps A: set in advance the metadata cache threshold value;

6. method according to claim 1 is characterized in that, the described unusual condition that occurs is: exist scheduling back uplink traffic to surpass the transmit port of the Iub transmit port bandwidth of configuration;

7. method according to claim 2 is characterized in that, further comprises before the step C11:

Described step C11 is specially step C113:

8. method according to claim 7 is characterized in that, further comprises after the step C113:

The uplink traffic of C21, calculating MAC-e scheduling back transmit port;

9. according to claim 2,3,4,5,7 or 8 described methods, it is characterized in that, be judged as in the steps A and do not occur further comprising behind the unusual condition: the user is carried out the MAC-e scheduling.

10. MAC-e dispatching patcher comprises: user equipment (UE), comprise the NodeB of the information unit of eating dishes without rice or wine, MAC-e scheduling unit, and user equipment (UE) sends dispatch request to the information unit of eating dishes without rice or wine; The information unit of eating dishes without rice or wine sends the information of eating dishes without rice or wine to the MAC-e scheduling unit, it is characterized in that NodeB further comprises: the uplink detecting unit;

The MAC-e scheduling unit is used for according to the MAC-e dispatching command of the uplink information of receiving to user equipment (UE) transmission reduction of speed or maintenance speed.

11. system according to claim 10 is characterized in that, described uplink detecting unit is made up of congested indication receiving element and/or Iub information unit;

This system further comprises: radio network controller (RNC);

Congested indication receiving element receives the transmission congestion information that radio network controller (RNC) sends, and sends the transmission congestion information to the MAC-e scheduling unit; The MAC-e scheduling unit sends reduction of speed MAC-e dispatching command according to the transmission congestion information of receiving to user equipment (UE);

The Iub information unit receives the Iub transmit port information that radio network controller (RNC) sends, and sends Iub transmit port information to the MAC-e scheduling unit; The MAC-e scheduling unit sends the MAC-e dispatching command of reduction of speed or maintenance speed to user equipment (UE) according to the Iub transmit port information of receiving.

12., it is characterized in that described uplink detecting unit comprises: buffer unit according to claim 10 or 11 described systems;