CN100433921C - Method for transmitting data on downward link - Google Patents
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- CN100433921C CN100433921C CNB2005101127759A CN200510112775A CN100433921C CN 100433921 C CN100433921 C CN 100433921C CN B2005101127759 A CNB2005101127759 A CN B2005101127759A CN 200510112775 A CN200510112775 A CN 200510112775A CN 100433921 C CN100433921 C CN 100433921C
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Abstract
The present invention discloses a method for transmitting data on a downlink, which comprises that steps that a radio link control entity marks the types of information when sending a control PDU, a retransmission data PDU and a new transmission data PDU to an MAC-d entity; an MAC-d entity uses the retransmission data PDU and the control PDU for generating a data frame with high dispatching priority according to the types of information; after a data frame with low dispatching priority is generated by the retransmission data PDU, the data frame is transmitted to an MAC-hs entity; the retransmission data PDU and the control PDU are distributed to a corresponding queue with high dispatching priority the received data frame with high dispatching priority by the MAC-hs entity, and the new transmission data PDU of the data frame with low dispatching priority is distributed to a corresponding queue with low dispatching priority. The present invention can shorten the waiting time of the control PDU and the retransmission data PDU in the queues; the drop call of a terminal is avoided, and the data transmission rate of downlinks is greatly improved.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method at the down link transmitting data when adopting high speed downlink packet to insert (HSDPA) technology in Wideband Code Division Multiple Access (WCDMA) (WCDMA) system.
Background technology
The HSDPA technology is a kind of technology of carrying out high speed data transfer on the down link of WCDMA system.The HSDPA technology adopts mixes the short frame technique of automatic retransmission technique, Adaptive Modulation and Coding technology and descending 2ms, can realize eating dishes without rice or wine peak rate up to 13.976Mbps, therefore, can greatly improve the throughput of down user data, improve the downlink capacity of WCDMA system.
When adopting the HSDPA technology, the downlink data in the WCDMA system can be carried on the high speed descending sharing channel (HS-DSCH) and transfer to portable terminal.To be prior art be carried on the HS-DSCH and adopt the flow chart of affirmation mode transmitting downlink data at the downlink data of WCDMA system Fig. 1.Referring to Fig. 1, in the prior art, the downlink data of WCDMA system is carried on the HS-DSCH, and adopts the process that affirmation mode transmits may further comprise the steps:
Step 101: the MAC-DATA request primitive that Radio Link in the radio network controller (RNC) control (RLC) entity will carry self downlink data is sent to the MAC-d entity among the RNC.
Here, described MAC-DATA request primitive by agreement set, employed order during MAC-d inter-entity transmission downlink data in RNC among RLC entity and the RNC.
In addition, in this step, entrained downlink data can comprise two types protocol Data Unit (PDU) in the MAC-DATA request primitive, i.e. data PDU and control PDU.Wherein, data PDU comprises two types of New Development data PDU and data retransmission PDU again.
Step 102:MAC-d entity obtains downlink data from the MAC-DATA request primitive that receives, and determines the dispatching priority of this downlink data.
Here, the MAC-d entity can such as being the mapping relations shown in the table 1, be determined the dispatching priority of downlink data according to the mapping relations between pre-configured type of service, Business Processing priority and the dispatching priority.Wherein, Business Processing priority is that 1 priority is the highest, and the rest may be inferred, and Business Processing priority is that 15 priority is minimum; Dispatching priority is that 14 priority is the highest, and the rest may be inferred, and dispatching priority is that 0 priority is minimum.
Table 1
Referring to table 1, such as, the data that receive of MAC-d entity are the interaction service type in this step, and its corresponding service processing priority is 3, and then the MAC-d entity can determine that the dispatching priority of the downlink data that obtained is 12.
All downlink datas that the utilization of step 103:MAC-d entity is obtained generate a HS-DSCH Frame, and determined dispatching priority information is carried at the MAC-hs entity that sends in this HS-DSCH Frame in the base station.
After step 104:MAC-hs entity receives the HS-DSCH Frame, according to the dispatching priority information of wherein carrying all data of this HS-DSCH Frame are distributed in the formation of a respective priority of corresponding current receiver.
Here, the corresponding different recipient of each formation of MAC-hs entity inside, and all formations of corresponding same recipient have different dispatching priority ranks, therefore, in this step, the MAC-hs entity is distributed to this HS-DSCH Frame in the formation with corresponding dispatching priority of corresponding current receiver according to the dispatching priority information of carrying in the HS-DSCH Frame.
Step 105: when the formation of this corresponding dispatching priority of the corresponding current receiver of scheduling, the MAC-hs entity is sent to terminal (UE) according to the principle of first in first out with all data in this formation.
By above description as can be seen, in the prior art, generally include dissimilar PDU in the downlink data of RLC entity, be New Development data PDU, data retransmission PDU and control PDU, and the RLC entity is to MAC-d entity transmission downlink data the time, in the MAC-DATA request primitive, do not distinguish New Development data PDU, data retransmission PDU and control PDU, thereby make the MAC-d entity utilize New Development data PDU, data retransmission PDU and control PDU combination to generate a HS-DSCH Frame.Because the MAC-d entity is determined a dispatching priority for the HS-DSCH Frame of institute's combination generation, thus make in the HS-DSCH Frame New Development data PDU, data retransmission PDU and control PDU and have identical dispatching priority.Afterwards, the MAC-hs entity in the base station then directly according to determined same priority, is kept at the New Development data PDU in the HS-DSCH Frame, data retransmission PDU and control PDU in the same formation when receiving the HS-DSCH Frame.Like this, owing in a formation, must follow the principle of first in first out, when in the formation when there are a lot of New Development data PDU before the PDU in data retransmission PDU and control, data retransmission PDU in the formation and control PDU must wait until then that New Development data PDU before all is sent out away and just can be scheduled later on and send to UE.
In such cases, if UE is in the relatively poor wireless environment of channel condition, MAC-hs entity in the base station then can be very little to the speed of UE transmission data, so then can cause controlling PDU and wait for that in formation long time just can be scheduled and sends to UE, therefore also just makes UE wait for that long time just can receive control PDU.Owing to having carried state report information among the control PDU, when UE did not receive control PDU for a long time, meeting active disconnection was connected with network side, thereby causes the UE call drop.Simultaneously, because before data retransmission PDU is not sent out away in formation, this data retransmission PDU can take the transmission resource of RLC entity all the time, so if data retransmission PDU waits for long time in formation, can make that then the send window of RLC entity for a long time can't be to front slide, thereby influence downlink transmission data rate greatly.
This shows that any one among control PDU or the data retransmission PDU can't in time be sent out away, all can cause the downlink transfer degradation, thereby reduce user's satisfaction.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method at the down link transmitting data, so that improve the downlink transfer quality.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of method at the down link transmitting data may further comprise the steps:
A, the dispatching priority that non-New Development data protocol data cell is set are higher than the dispatching priority of New Development data protocol data cell;
B, radio link control entity send non-New Development data protocol data cell and New Development data protocol data cell to the MAC-d entity, identify its type information simultaneously;
C, MAC-d entity are according to type information that is identified and set dispatching priority, the non-New Development data protocol data cell that utilization receives generates the Frame of higher dispatching priority, and utilize the New Development data protocol data cell that receives to generate the Frame of low scheduling priority, then the Frame that is generated is sent to the MAC-hs entity;
Non-New Development data protocol data cell in the higher dispatching priority Frame that D, MAC-hs entity will receive is distributed in the formation of higher dispatching priority, and the New Development data protocol data cell in the low scheduling priority data frame that receives is distributed in the formation of low scheduling priority;
E, MAC-hs entity send to terminal with non-New Development data protocol data cell in each formation and New Development data protocol data cell successively according to the priority of each formation.
Described non-New Development data protocol data cell comprises: control protocol data cell and data retransmission protocol Data Unit.
Described steps A comprises: according to type of service and Business Processing priority, corresponding the 3rd dispatching priority of New Development data protocol data cell is set, and control protocol data cell and data retransmission protocol Data Unit corresponding first dispatching priority and second dispatching priority respectively be set, wherein, first dispatching priority and second dispatching priority are any one dispatching priority that is higher than the 3rd dispatching priority.
In steps A, described first dispatching priority is higher than second dispatching priority.
In steps A, described first dispatching priority equals second dispatching priority.
This method further comprises: increase a type bit that is used for identity protocol data cell type in advance in sending request primitive, and control protocol data cell and the data retransmission protocol Data Unit corresponding first kind offset of difference and second types value are set;
In step B, described radio link control entity identifies its type information when the MAC-d entity sends control protocol data cell and data retransmission protocol Data Unit step comprises: radio link control entity writes first kind offset on the type bit of the first transmission request primitive, and the control protocol data cell is carried at first sends in the request primitive, and on the type bit of the second transmission request primitive, write second types value, the data retransmission protocol Data Unit is carried at second sends in the request primitive, then the first transmission request primitive and second is sent request primitive and be sent to the MAC-d entity;
In step C, the step that described MAC-d entity generates the Frame of higher dispatching priority comprises: the MAC-d entity sends the first kind offset of carrying in the request primitive according to first and obtain the control protocol data cell from the first transmission request primitive, then according to corresponding first dispatching priority of set control protocol data cell, utilize the control protocol data cell of being obtained to generate first Frame of corresponding first dispatching priority, and, the MAC-d entity sends second types value that carries in the request primitive according to second and obtain the data retransmission protocol Data Unit from the second transmission request primitive, according to corresponding second dispatching priority of set data retransmission protocol Data Unit, utilize the data retransmission protocol Data Unit that is obtained to generate second Frame of corresponding second dispatching priority then;
In step D, described MAC-hs entity comprises the step that the data retransmission protocol Data Unit in the higher dispatching priority Frame and control protocol data cell are distributed in the higher dispatching priority formation: the control protocol data cell of carrying in first Frame of MAC-hs entity with corresponding first dispatching priority is distributed in the formation of corresponding first dispatching priority in self, and the data retransmission protocol Data Unit that carries in second Frame with corresponding second dispatching priority is distributed in the formation of corresponding second dispatching priority in self.
Described first dispatching priority is the highest dispatching priority; Described second dispatching priority is a time high dispatching priority.
This method further comprises: increase a type bit that is used for identity protocol data cell type in advance in sending request primitive, and control protocol data cell and the data retransmission protocol Data Unit corresponding first kind offset of difference and second types value are set;
In step B, described radio link control entity identifies its type information when the MAC-d entity sends control protocol data cell and data retransmission protocol Data Unit step comprises: radio link control entity sends on the type bit of request primitive first and writes the first kind offset or second types value, and control protocol data cell and data retransmission protocol Data Unit are carried at first send in the request primitive and be sent to the MAC-d entity;
In step C, the step that described MAC-d entity generates the Frame of higher dispatching priority comprises: the MAC-d entity sends the first kind offset or second types value that carry in the request primitive according to first and obtain control protocol data cell and data retransmission protocol Data Unit from the first transmission request primitive, then according to first dispatching priority and second dispatching priority of set control protocol data cell and data retransmission protocol Data Unit correspondent equal, first Frame that utilizes the control protocol data cell obtained and data retransmission protocol Data Unit to generate corresponding first dispatching priority or second dispatching priority;
In step D, described MAC-hs entity comprises the step that the data retransmission protocol Data Unit in the higher dispatching priority Frame and control protocol data cell are distributed in the corresponding higher priority queues: control protocol data cell of carrying in first Frame of MAC-hs entity with corresponding first dispatching priority or second dispatching priority and data retransmission protocol Data Unit are distributed in the formation of corresponding first dispatching priority in self or second dispatching priority.
Described first dispatching priority and second dispatching priority are the highest dispatching priority.
This method further comprises: corresponding the 3rd types value of New Development data protocol data cell is set;
In step B, described radio link control entity identifies its type information when the MAC-d entity sends New Development data protocol data cell step comprises: radio link control entity sends on the type bit of request primitive the 3rd and writes the 3rd types value, and New Development data protocol data cell is carried at the 3rd sends in the request primitive and be sent to the MAC-d entity;
In step C, the step that the New Development data protocol data cell that the utilization of described MAC-d entity receives generates low scheduling priority data frame comprises: the MAC-d entity sends the request primitive from the 3rd according to the 3rd types value that carries in the 3rd transmission request primitive and obtains New Development data protocol data cell, according to corresponding the 3rd dispatching priority of set New Development data protocol data cell, utilize the New Development data protocol data cell of being obtained to generate the 3rd Frame of the 3rd dispatching priority then;
In step D, described MAC-hs entity will be distributed to corresponding step of hanging down in the scheduling priority query and comprise than the New Development data protocol data cell in the low scheduling priority data frame: the New Development data protocol data cell of carrying in the 3rd Frame of the 3rd dispatching priority that the MAC-hs entity will receive is distributed in the formation of corresponding the 3rd dispatching priority in self.
This method further comprises: increase a type bit that is used for identity protocol data cell type in advance in sending request primitive, and non-New Development data protocol data cell and the corresponding inhomogeneity offset of New Development data protocol data cell difference are set;
Described step B comprises: radio link control entity writes the types value of non-New Development data protocol data cell correspondence on the type bit of a transmission request primitive, and non-New Development data protocol data cell is carried in this transmission request primitive, and, radio link control entity writes the types value of New Development data protocol data cell correspondence on the type bit of another transmission request primitive, and with New Development data protocol data cell be carried at this another send in the request primitive, send request primitives with these two then and be sent to the MAC-d entity;
In step C, the type information of MAC-d entity institute basis comprises: described two send the types value of the non-New Development data protocol data cell correspondence that is write respectively on the type bit in the request primitive and the types value of New Development data protocol data cell correspondence;
Wherein, described non-New Development data protocol data cell is control protocol data cell or data retransmission protocol Data Unit.
Described transmission request primitive is MAC-DATA request primitive or self-defining request primitive.
Described control protocol data cell, data retransmission protocol Data Unit and New Development data protocol data cell belong to a kind of business or business not of the same race.
As seen, the method for the present invention's proposition has the following advantages:
In the present invention, RLC entity among the RNC is sending the New Development data PDU, identified type information when data retransmission PDU and control PDU, correspondingly, MAC-d entity among the RNC according to type information when generating the HS-DSCH Frame, make the data retransmission PDU and the dispatching priority of the HS-DSCH Frame of control PDU correspondence be higher than the HS-DSCH Frame of New Development data PDU correspondence, therefore, MAC-hs entity in the base station is then according to the dispatching priority of each HS-DSCH Frame, data retransmission PDU and control PDU are distributed in the higher formation of dispatching priority, the New Development data PDU is distributed in the lower formation of dispatching priority, but make MAC-hs entity priority scheduling and send data retransmission PDU and control PDU, thereby reduced data retransmission PDU and in the MAC-hs entity, waited for the time that is scheduled with control PDU, avoided the UE call drop and improved downlink transmission data rate greatly, and then improved the satisfaction of user operator.
Description of drawings
To be prior art be carried on the HS-DSCH and adopt the flow chart of affirmation mode transmitting downlink data at the downlink data of WCDMA system Fig. 1.
Fig. 2 is carried on the HS-DSCH and adopts the flow chart of affirmation mode transmitting downlink data at the downlink data of WCDMA system in the embodiment of the invention 1.
Fig. 3 is carried on the HS-DSCH and adopts the flow chart of affirmation mode transmitting downlink data at the downlink data of WCDMA system in the embodiment of the invention 2.
Embodiment
Core concept of the present invention is: the dispatching priority that non-New Development data PDU is set is higher than the dispatching priority of New Development data PDU; The RLC entity sends non-New Development data PDU and New Development data PDU to the MAC-d entity, identifies its type information simultaneously; The MAC-d entity is according to type information that is identified and set dispatching priority, the non-New Development data PDU that utilization receives generates the Frame of higher dispatching priority, and utilize the New Development data PDU that receives to generate the Frame of low scheduling priority, then the Frame that is generated is sent to the MAC-hs entity; Non-New Development data PDU in the higher dispatching priority Frame that the MAC-hs entity will receive is distributed in the formation of higher dispatching priority, and the New Development data PDU in the low scheduling priority data frame that receives is distributed in the formation of low scheduling priority.
Wherein, described non-New Development data PDU can be: control PDU; Or, data retransmission PDU; Or, control PDU and data retransmission PDU.
In addition, described control PDU, data retransmission PDU and New Development data PDU can belong to a kind of business, also can belong to business not of the same race.That is to say, the present invention can be at distinguishing dispatching priority with a kind of control PDU of business and/or data retransmission PDU and New Development data PDU, make with a kind of control PDU of business and/or the dispatching priority of data retransmission PDU and be higher than the New Development data PDU, also can be at different service types, make the dispatching priority of the control PDU of any one type of service and/or data retransmission PDU all be higher than the New Development data PDU of any one type of service.
In addition, the method for described RLC entity identification type information is: label thereby the RLC entity sends the type information that carries different PDU in the request primitive in the difference that is sent to the MAC-d entity.Here, described transmission request primitive can be an agreement existing MAC-DATA request primitive or a self-defining request primitive.
In addition, need to prove, in the present invention, the different all corresponding business not of the same race of the present invention of the identical but corresponding service processing priority of type of service difference or type of service.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
In following embodiment, described non-New Development data PDU comprises control PDU and data retransmission PDU.
And, in following embodiment, the present invention is the dispatching priority that all is higher than the New Development data PDU by the dispatching priority that control PDU and data retransmission PDU are set, and realizes reducing data retransmission PDU and waits for the time that is scheduled with control PDU in the MAC-hs entity.And for control PDU and data retransmission PDU, the present invention can distinguish this dispatching priority between the two, also can not distinguish this dispatching priority between the two, that is to say, the dispatching priority that control PDU and data retransmission PDU can be set is unequal, and the dispatching priority that control PDU and data retransmission PDU also can be set equates.
Embodiment 1:
In the present embodiment, be with agreement existing MAC-DATA request primitive as described transmission request primitive, and, be provided with that the dispatching priority of control PDU and data retransmission PDU is unequal to be example, specific implementation process of the present invention is described.
Fig. 2 is carried on the HS-DSCH and adopts the flow chart of affirmation mode transmitting downlink data at the downlink data of WCDMA system in the embodiment of the invention 1.Referring to Fig. 2, in the present invention, on the HS-DSCH of WCDMA system, adopt the process of affirmation mode transmission data specifically to may further comprise the steps:
Step 201: the dispatching priority from high to low that sets in advance control PDU, data retransmission PDU and New Development data PDU.
The concrete setting up procedure of this step comprises:
At first, determine a kind of dispatching priority of New Development data PDU of business according to the method for existing definite a kind of professional downlink data dispatching priority.
Such as, according to being that the dispatching priority of the New Development data PDU of 6,7 and 8 not business of the same race sets gradually the dispatching priority 9,8 and 7 into from high to low with Business Processing priority in the interaction service shown in the table 1.
Secondly, the dispatching priority that a kind of data retransmission PDU of business is set is higher than the dispatching priority of New Development data PDU, and the dispatching priority of control PDU is higher than the dispatching priority of data retransmission PDU.
Here, be higher than under the condition of data retransmission PDU dispatching priority at the dispatching priority that guarantees control PDU, this both dispatching priority all can be any one dispatching priority that is higher than New Development data PDU dispatching priority.Such as, it for Business Processing priority in the interaction service 6 business, the dispatching priority of its New Development data PDU is 9, so, the dispatching priority that the data retransmission PDU of this kind business can be set is in 14 to 10 any one, and the dispatching priority that the control PDU of this kind business can be set is in 15 to 11 any one, and the dispatching priority of control PDU is higher than the dispatching priority of data retransmission PDU.For another example, it for Business Processing priority in the interaction service 8 business, the dispatching priority of its New Development data PDU is 7, so, the dispatching priority that the data retransmission PDU of this kind business can be set is in 14 to 8 any one, and the dispatching priority that the control PDU of this kind business can be set is in 15 to 9 any one, and the dispatching priority of control PDU is higher than the dispatching priority of data retransmission PDU.
Dispatching priority with control PDU that any one business is set is 15 below, and the dispatching priority that any one professional data retransmission PDU is set is 14 concrete business realizing process to be described for example.At this moment, the dispatching priority of the set New Development data PDU of this step, data retransmission PDU and control PDU can be as shown in table 2.
Table 2
In table 2, Business Processing priority is that 1 priority is the highest, and the rest may be inferred, and Business Processing priority is that 15 priority is minimum; Dispatching priority is that 15 priority is the highest, and the rest may be inferred, and dispatching priority is that 0 priority is minimum.
Step 202: in the MAC-DATA request primitive, increase a type bit that is used to indicate the PDU type in advance, and control PDU, data retransmission PDU and New Development data PDU difference corresponding first kind offset, second types value and the 3rd types value are set.
Here, in the MAC-DATA request primitive, increase a type bit that is used to indicate the PDU type, and New Development data PDU, data retransmission PDU and the corresponding respectively inhomogeneity offset of control PDU are set, and are in order to make the MAC-d entity distinguish dissimilar PDU according to the types value on the type bit in the MAC-DATA request primitive in subsequent process.
Step 203: when sending downlink data, RLC entity among the RNC uses 3 MAC-DATA request primitives, on the type bit of MAC-DATA request primitive 1, write first kind offset, and will control PDU and be carried in the MAC-DATA request primitive 1, and, on the type bit of MAC-DATA request primitive 2, write second types value, and data retransmission PDU is carried in the MAC-DATA request primitive 2, and, on the type bit of MAC-DATA request primitive 3, write the 3rd types value, and the New Development data PDU is carried in the MAC-DATA request primitive 3.
Each MAC-DATA request primitive that RLC entity among the step 204:RNC will carry New Development data PDU, data retransmission PDU and control PDU is sent to the MAC-d entity among the RNC.
MAC-d entity among the step 205:RNC obtains control PDU, data retransmission PDU and the New Development data PDU of carrying in each MAC-DATA request primitive respectively after receiving each MAC-DATA request primitive that the RLC entity sends according to the types value on the type bit in each MAC-DATA request primitive.
Here, owing to be first kind offset on the type bit in the MAC-DATA request primitive 1, such as being 01, it in the MAC-DATA request primitive 2 second types value, such as being 10, it in the MAC-DATA request primitive 3 the 3rd types value, such as being 11, owing to set in advance control PDU, data retransmission PDU and New Development data PDU be corresponding first kind offset respectively, second types value and the 3rd types value, so, MAC-d entity among the RNC then can obtain control PDU from MAC-DATA request primitive 1, obtain data retransmission PDU from MAC-DATA request primitive 2, obtains the New Development data PDU from MAC-DATA request primitive 3.
MAC-d entity among the step 206:RNC is determined the dispatching priority of the current New Development data PDU of obtaining, data retransmission PDU and control PDU according to the dispatching priority of the New Development data PDU that sets in advance, data retransmission PDU and control PDU.
Here, MAC-d entity among the RNC is defined as the dispatching priority of the data retransmission PDU that obtained and control PDU time high and the highest, and determines the dispatching priority of this New Development data PDU according to the type of service of the New Development data PDU of being obtained and the RLC entity corresponding service processing priority of sending this New Development data PDU.
Such as, control PDU, the data retransmission PDU that MAC-d entity among the RNC obtains respectively from the MAC-DATA request primitive 1, MAC-DATA request primitive 2 and the MAC-DATA request primitive 3 that receive and the type of service of New Development data PDU are interaction service, and the RLC entity corresponding service processing priority of sending this New Development data PDU is 5, then according to above-mentioned table 2, the dispatching priority that can determine the current New Development data PDU of obtaining is 10, the dispatching priority of the current data retransmission PDU that obtains is 14, and the dispatching priority of the current control PDU that obtains is 15.
Control PDU, data retransmission PDU and New Development data PDU that the utilization of step 207:MAC-d entity is obtained generate a HS-DSCH Frame respectively, the 2nd HS-DSCH Frame and the 3rd HS-DSCH Frame, and in each HS-DSCH Frame, carry corresponding dispatching priority information.
Here, the MAC-d entity carries the highest scheduling precedence information of determined control PDU in a HS-DSCH Frame, such as dispatching priority 15 information, in the 2nd HS-DSCH Frame, carry the inferior high scheduling precedence information of determined data retransmission PDU, such as dispatching priority 14 information, carrying the dispatching priority information of determined New Development data PDU in the 3rd HS-DSCH Frame, is 10 information such as dispatching priority.
Step 208:MAC-d entity is sent to MAC-hs entity in the base station with a HS-DSCH Frame, the 2nd HS-DSCH Frame and the 3rd HS-DSCH Frame.
Step 209: the MAC-hs entity in the base station is distributed to the control PDU in each HS-DSCH Frame, data retransmission PDU and New Development data PDU data in the formation of the corresponding dispatching priority of corresponding current receiver in self according to the dispatching priority information of carrying in the HS-DSCH Frame, the 2nd HS-DSCH Frame and the 3rd HS-DSCH Frame that receive.
Here, because the dispatching priority that carries in the HS-DSCH Frame is the highest, such as being 15, the dispatching priority that carries in the 2nd HS-DSCH Frame is inferior high, such as being 14, the dispatching priority that carries in the 3rd HS-DSCH Frame is minimum relatively, such as being 10, then the MAC-hs entity in the base station is promptly controlled PDU with the data in the HS-DSCH Frame, and the dispatching priority that is distributed to corresponding current receiver in self is in the highest formation, such as being formation 1, with the data in the 2nd HS-DSCH Frame, i.e. data retransmission PDU, the dispatching priority that is distributed to corresponding current receiver in self is in time high formation, such as being formation 2, with the data in the 3rd HS-DSCH Frame, promptly the New Development data PDU is distributed in the formation of the corresponding dispatching priority 10 of corresponding current receiver in self.
After this, a because HS-DSCH Frame, control PDU in the 2nd HS-DSCH Frame and the 3rd HS-DSCH Frame, data retransmission PDU and New Development data PDU have been distributed in the dispatching priority formation from high to low successively, therefore, when the MAC-hs entity in subsequent base stations is dispatched each formation of corresponding current receiver, then can be according to dispatching priority, scheduling controlling PDU place formation successively, data retransmission PDU place formation and the place formation of New Development data PDU, thereby can guarantee that data retransmission PDU and control PDU are preferentially sent to UE, reduce data retransmission PDU and in the MAC-hs entity, wait for the time that is scheduled, avoid the UE call drop and improve downlink transmission data rate greatly with control PDU.
Embodiment 2:
In the present embodiment, be with agreement existing MAC-DATA request primitive as described transmission request primitive, and the dispatching priority that control PDU and data retransmission PDU are set equates to be example, specific implementation process of the present invention is described.
Fig. 3 is carried on the HS-DSCH and adopts the flow chart of affirmation mode transmitting downlink data at the downlink data of WCDMA system in the embodiment of the invention 2.Referring to Fig. 3, in the present invention, on the HS-DSCH of WCDMA system, adopt the process of affirmation mode transmission data specifically to may further comprise the steps:
Step 301: the dispatching priority that sets in advance data retransmission PDU and control PDU equates, and is higher than the dispatching priority of New Development data PDU.
The concrete setting up procedure of this step comprises:
At first, according to the existing method of determining a kind of professional downlink data dispatching priority,, determine the dispatching priority of the New Development data PDU of this kind business promptly according to a kind of type of service and Business Processing priority thereof of business.
Such as, according to being that the dispatching priority of the New Development data PDU of 6,7 and 8 not business of the same race sets gradually the dispatching priority 9,8 and 7 into from high to low with Business Processing priority in the interaction service shown in the table 1.
Secondly, a kind of control PDU of business and the dispatching priority of data retransmission PDU are set equate, and for being higher than any one dispatching priority of New Development data PDU dispatching priority.
Such as, for Business Processing priority in the interaction service is 6 business, and the dispatching priority of its New Development data PDU is 9, so, the dispatching priority that the control PDU of this kind business and data retransmission PDU can be set equates, in the dispatching priority 15 to 10 any one.For another example, be 8 business for Business Processing priority in the interaction service, the dispatching priority of its New Development data PDU is 7, so, the control PDU of this kind business and the dispatching priority of data retransmission PDU can be set equate, be in 15 to 8 any one.
Equating to be the highest scheduling priority 15 with the dispatching priority of control PDU that any one business is set and data retransmission PDU below is that example illustrates concrete business realizing process.。
Step 302: in the MAC-DATA request primitive, increase a type bit that is used to indicate the PDU type in advance, and control PDU, data retransmission PDU and New Development data PDU difference corresponding first kind offset, second types value and the 3rd types value are set.
Step 303: when sending downlink data, RLC entity among the RNC uses 2 MAC-DATA request primitives, on the type bit of MAC-DATA request primitive 1, write first or second types value, and with data retransmission PDU and control PDU be carried in the MAC-DATA request primitive 1, and, on the type bit of MAC-DATA request primitive 2, write the 3rd types value, and the New Development data PDU is carried in the MAC-DATA request primitive 2.
Here, owing to set in advance the highest scheduling priority 15 of the identical equal correspondence of dispatching priority of data retransmission PDU and control PDU, that is to say, data retransmission PDU and control PDU can not distinguish the priority of scheduling in follow-up process of transmitting, therefore, RLC entity among the RNC can write any one types value among data retransmission PDU and the control PDU on the type bit of MAC-DATA request primitive 1, that is to say, writes first kind offset or second types value all can.
RLC entity among the step 304:RNC is sent to MAC-d entity among the RNC with each MAC-DATA request primitive.
After MAC-d entity among the step 305:RNC receives each MAC-DATA request primitive that the RLC entity sends, according to the types value on the type bit in each MAC-DATA request primitive, obtain the data retransmission PDU and the control PDU that carry in the MAC-DATA request primitive 1, and obtain the New Development data PDU of carrying in the MAC-DATA request primitive 2.
Here owing to be the first kind offset or second types value on MAC-DATA request primitive 1 type bit, therefore, the MAC-d entity then can know carry in the MAC-DATA request primitive 1 for retransmitting data PDU and controlling PDU.Owing to is the 3rd types value on MAC-DATA request primitive 2 type bit, therefore, the MAC-d entity then can know carry in the MAC-DATA request primitive 2 be the New Development data PDU.
MAC-d entity among the step 306:RNC is according to the dispatching priority of the New Development data PDU that sets in advance, data retransmission PDU and control PDU, determine the dispatching priority of the current New Development data PDU of obtaining, and the dispatching priority of data retransmission PDU and control PDU.
Here, MAC-d entity among the RNC is defined as the dispatching priority of the data retransmission PDU that obtained and control PDU the highest, and determines the dispatching priority of this New Development data PDU according to the type of service of the New Development data PDU of being obtained and the RLC entity corresponding service processing priority of sending this New Development data PDU.
Data retransmission PDU that the utilization of step 307:MAC-d entity is obtained and control PDU generate a HS-DSCH Frame, and utilize the New Development data PDU of being obtained to generate the 2nd HS-DSCH data, and in each HS-DSCH Frame, carry corresponding dispatching priority information.
Here, the MAC-d entity carries the highest scheduling precedence information of determined data retransmission PDU and control PDU in a HS-DSCH Frame, carries the dispatching priority information of determined New Development data PDU in the 2nd HS-DSCH Frame.
Step 308:MAC-d entity is sent to MAC-hs entity in the base station with a HS-DSCH Frame and the 2nd HS-DSCH Frame.
Step 309: the MAC-hs entity in the base station is according to the dispatching priority information of carrying in a HS-DSCH Frame that receives and the 2nd HS-DSCH Frame, data retransmission PDU in the one HS-DSCH Frame and control PDU are distributed in the formation of the highest dispatching priority of corresponding current receiver in self, the New Development data PDU in the 2nd HS-DSCH Frame is distributed in the formation of the corresponding dispatching priority of corresponding current receiver in self.
After this, when the MAC-hs entity in the base station is dispatched each formation of corresponding current receiver, then can be according to dispatching priority, preferentially data retransmission PDU and control PDU are sent to UE simultaneously, reduce data retransmission PDU and in the MAC-hs entity, wait for the time that is scheduled, avoid the UE call drop and improve downlink transmission data rate greatly with control PDU.
In the foregoing description 2, because the dispatching priority of set data retransmission PDU and control PDU equates to be the highest dispatching priority, therefore, to retransmitting data PDU and controlling PDU and distinguish, be about to data retransmission PDU and control PDU be carried in the MAC-DATA request primitive, and utilize data retransmission PDU and control PDU to generate a HS-DSCH Frame, make and the priority orders of not distinguishing transmission between data retransmission PDU and the control PDU only got final product by preferential the transmission at the New Development data PDU.
It is identical with the principle of the foregoing description 1 and embodiment 2 described processes with the specific implementation process of control PDU that the present invention adopts self-defining request primitive to carry data retransmission PDU.
In the various embodiments described above, described control PDU, data retransmission PDU and New Development data PDU belong to a kind of business, that is to say, the foregoing description is described is at a kind of business, make the control PDU with a kind of business, the dispatching priority of data retransmission PDU be higher than the New Development data PDU, so that the specific implementation process that is preferentially sent with respect to the New Development data PDU with a kind of control PDU and data retransmission PDU of business.The present invention is directed to different service types, make the dispatching priority of control PDU, the data retransmission PDU of any one type of service all be higher than the New Development data PDU of any one type of service, so that the control PDU of any one type of service and data retransmission PDU are identical with the principle of the foregoing description process with respect to the process that the New Development data PDU of any one type of service is preferentially sent.
In the various embodiments described above, non-New Development data PDU comprises control PDU and data retransmission PDU.In other embodiments of the invention, non-New Development data PDU also can include only a kind of among control PDU and the data retransmission PDU, the principle of its specific implementation process is identical with the principle of the described process of the various embodiments described above, can simply be described as: set in advance non-New Development data PDU and promptly control the dispatching priority of PDU or data retransmission PDU and be higher than the New Development data PDU, and in the transmission request primitive, increase a type bit that is used to identify the PDU type in advance, control PDU or data retransmission PDU are set, and the corresponding inhomogeneity offset of New Development data protocol data cell difference; When carrying out transmission, the RLC entity writes the types value of control PDU or data retransmission PDU correspondence on the type bit of a transmission request primitive, and correspondingly will control PDU or data retransmission PDU is carried in this transmission request primitive, and the types value that on the type bit of another transmission request primitive, writes New Development data PDU correspondence, with the New Development data PDU be carried at this another send in the request primitive, then described these two transmission request primitives are sent to the MAC-d entity; The MAC-d entity is according to the control PDU that is write on the type bit in two transmission request primitives or the types value of data retransmission PDU correspondence, and the types value of New Development data PDU correspondence, discern two and send the corresponding respectively PDU of request primitive, thereby carry out follow-up generating the different pieces of information frame, and the MAC-hs entity is distributed to process in the different dispatching priority formations with the PDU in the different pieces of information frame according to type information and set dispatching priority.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1, a kind of method at the down link transmitting data is characterized in that, this method may further comprise the steps:
A, the dispatching priority that non-New Development data protocol data cell is set are higher than the dispatching priority of New Development data protocol data cell;
B, radio link control entity send non-New Development data protocol data cell and New Development data protocol data cell to the MAC-d entity, identify its type information simultaneously;
C, MAC-d entity are according to type information that is identified and set dispatching priority, the non-New Development data protocol data cell that utilization receives generates the Frame of higher dispatching priority, and utilize the New Development data protocol data cell that receives to generate the Frame of low scheduling priority, then the Frame that is generated is sent to the MAC-hs entity;
Non-New Development data protocol data cell in the higher dispatching priority Frame that D, MAC-hs entity will receive is distributed in the formation of higher dispatching priority, and the New Development data protocol data cell in the low scheduling priority data frame that receives is distributed in the formation of low scheduling priority;
E, MAC-hs entity send to terminal with non-New Development data protocol data cell in each formation and New Development data protocol data cell successively according to the priority of each formation.
2, a kind of method at the down link transmitting data according to claim 1 is characterized in that, described non-New Development data protocol data cell comprises: control protocol data cell and data retransmission protocol Data Unit.
3, a kind of method according to claim 2 at the down link transmitting data, it is characterized in that, described steps A comprises: according to type of service and Business Processing priority, corresponding the 3rd dispatching priority of New Development data protocol data cell is set, and control protocol data cell and data retransmission protocol Data Unit corresponding first dispatching priority and second dispatching priority respectively be set, wherein, first dispatching priority and second dispatching priority are any one dispatching priority that is higher than the 3rd dispatching priority.
4, a kind of method at the down link transmitting data according to claim 3 is characterized in that, in steps A, described first dispatching priority is higher than second dispatching priority.
5, a kind of method at the down link transmitting data according to claim 3 is characterized in that, in steps A, described first dispatching priority equals second dispatching priority.
6, a kind of method according to claim 4 at the down link transmitting data, it is characterized in that, this method further comprises: increase a type bit that is used for identity protocol data cell type in advance in sending request primitive, and control protocol data cell and the data retransmission protocol Data Unit corresponding first kind offset of difference and second types value are set;
In step B, described radio link control entity identifies its type information when the MAC-d entity sends control protocol data cell and data retransmission protocol Data Unit step comprises: radio link control entity writes first kind offset on the type bit of the first transmission request primitive, and the control protocol data cell is carried at first sends in the request primitive, and on the type bit of the second transmission request primitive, write second types value, the data retransmission protocol Data Unit is carried at second sends in the request primitive, then the first transmission request primitive and second is sent request primitive and be sent to the MAC-d entity;
In step C, the step that described MAC-d entity generates the Frame of higher dispatching priority comprises: the MAC-d entity sends the first kind offset of carrying in the request primitive according to first and obtain the control protocol data cell from the first transmission request primitive, then according to corresponding first dispatching priority of set control protocol data cell, utilize the control protocol data cell of being obtained to generate first Frame of corresponding first dispatching priority, and, the MAC-d entity sends second types value that carries in the request primitive according to second and obtain the data retransmission protocol Data Unit from the second transmission request primitive, according to corresponding second dispatching priority of set data retransmission protocol Data Unit, utilize the data retransmission protocol Data Unit that is obtained to generate second Frame of corresponding second dispatching priority then;
In step D, described MAC-hs entity comprises the step that the data retransmission protocol Data Unit in the higher dispatching priority Frame and control protocol data cell are distributed in the higher dispatching priority formation: the control protocol data cell of carrying in first Frame of MAC-hs entity with corresponding first dispatching priority is distributed in the formation of corresponding first dispatching priority in self, and the data retransmission protocol Data Unit that carries in second Frame with corresponding second dispatching priority is distributed in the formation of corresponding second dispatching priority in self.
7, according to claim 4 or 6 described a kind of methods, it is characterized in that described first dispatching priority is the highest dispatching priority at the down link transmitting data; Described second dispatching priority is a time high dispatching priority.
8, a kind of method according to claim 5 at the down link transmitting data, it is characterized in that, this method further comprises: increase a type bit that is used for identity protocol data cell type in advance in sending request primitive, and control protocol data cell and the data retransmission protocol Data Unit corresponding first kind offset of difference and second types value are set;
In step B, described radio link control entity identifies its type information when the MAC-d entity sends control protocol data cell and data retransmission protocol Data Unit step comprises: radio link control entity sends on the type bit of request primitive first and writes the first kind offset or second types value, and control protocol data cell and data retransmission protocol Data Unit are carried at first send in the request primitive and be sent to the MAC-d entity;
In step C, the step that described MAC-d entity generates the Frame of higher dispatching priority comprises: the MAC-d entity sends the first kind offset or second types value that carry in the request primitive according to first and obtain control protocol data cell and data retransmission protocol Data Unit from the first transmission request primitive, then according to first dispatching priority and second dispatching priority of set control protocol data cell and data retransmission protocol Data Unit correspondent equal, first Frame that utilizes the control protocol data cell obtained and data retransmission protocol Data Unit to generate corresponding first dispatching priority or second dispatching priority;
In step D, described MAC-hs entity comprises the step that the data retransmission protocol Data Unit in the higher dispatching priority Frame and control protocol data cell are distributed in the corresponding higher priority queues: control protocol data cell of carrying in first Frame of MAC-hs entity with corresponding first dispatching priority or second dispatching priority and data retransmission protocol Data Unit are distributed in the formation of corresponding first dispatching priority in self or second dispatching priority.
9, according to claim 5 or 8 described a kind of methods, it is characterized in that described first dispatching priority and second dispatching priority are the highest dispatching priority at the down link transmitting data.
10, according to claim 6 or 8 described a kind of methods, it is characterized in that this method further comprises: corresponding the 3rd types value of New Development data protocol data cell is set at the down link transmitting data;
In step B, described radio link control entity identifies its type information when the MAC-d entity sends New Development data protocol data cell step comprises: radio link control entity sends on the type bit of request primitive the 3rd and writes the 3rd types value, and New Development data protocol data cell is carried at the 3rd sends in the request primitive and be sent to the MAC-d entity;
In step C, the step that the New Development data protocol data cell that the utilization of described MAC-d entity receives generates low scheduling priority data frame comprises: the MAC-d entity sends the request primitive from the 3rd according to the 3rd types value that carries in the 3rd transmission request primitive and obtains New Development data protocol data cell, according to corresponding the 3rd dispatching priority of set New Development data protocol data cell, utilize the New Development data protocol data cell of being obtained to generate the 3rd Frame of the 3rd dispatching priority then;
In step D, described MAC-hs entity will be distributed to corresponding step of hanging down in the scheduling priority query and comprise than the New Development data protocol data cell in the low scheduling priority data frame: the New Development data protocol data cell of carrying in the 3rd Frame of the 3rd dispatching priority that the MAC-hs entity will receive is distributed in the formation of corresponding the 3rd dispatching priority in self.
11, a kind of method according to claim 1 at the down link transmitting data, it is characterized in that, this method further comprises: increase a type bit that is used for identity protocol data cell type in advance in sending request primitive, and non-New Development data protocol data cell and the corresponding inhomogeneity offset of New Development data protocol data cell difference are set;
Described step B comprises: radio link control entity writes the types value of non-New Development data protocol data cell correspondence on the type bit of a transmission request primitive, and non-New Development data protocol data cell is carried in this transmission request primitive, and, radio link control entity writes the types value of New Development data protocol data cell correspondence on the type bit of another transmission request primitive, and with New Development data protocol data cell be carried at this another send in the request primitive, send request primitives with these two then and be sent to the MAC-d entity;
In step C, the type information of MAC-d entity institute basis comprises: described two send the types value of the non-New Development data protocol data cell correspondence that is write respectively on the type bit in the request primitive and the types value of New Development data protocol data cell correspondence;
Wherein, described non-New Development data protocol data cell is control protocol data cell or data retransmission protocol Data Unit.
12, according to claim 6,8 or 11 described a kind of methods, it is characterized in that described transmission request primitive is MAC-DATA request primitive or self-defining request primitive at the down link transmitting data.
13, according to claim 2,3,4,5,6,8 or 11 described a kind of methods at the down link transmitting data, it is characterized in that described control protocol data cell, data retransmission protocol Data Unit and New Development data protocol data cell belong to a kind of business or business not of the same race.
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