CN101039452B

CN101039452B - Method for transmitting scheduling information of enhanced dedication channel and base station node thereof

Info

Publication number: CN101039452B
Application number: CN200610067777A
Authority: CN
Inventors: 刘晟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-03-15
Filing date: 2006-03-15
Publication date: 2010-05-12
Anticipated expiration: 2026-03-15
Also published as: WO2007104202A1; CN101039452A

Abstract

The present invention relates to a mobile communication technology, and discloses a transmitting method and system which are used for enhancing scheduling information in private channel and are capable of making a base station node execute grouping scheduling on E-DCH according to the latest SI report. In this invention, the RSN transmitted by the E-DPCCH is employed to determine that whether thereceived data from the base station node is transmitted by the first time or not, and if the result is yes, the base station node records arriving time of the data transmitted by the first time through saving connection-frame signals and sub-frame signals which correspond to the TTI of the data. When receiving the data containing the SI, the base station node determines that whether the arriving time of the data transmitted by the first time is posterior to the memorized receiving time the latest SI, and if the result is yes, the scheduling is executed with basis of the SI in the data and updates the memorized receiving time the latest SI with the arriving time of the data transmitted by the first time; and if the result is not, the SI in the data is ignored.

Description

The transmission method and the base-station node of schedule information in the dedicated channel that strengthens

Technical field

The present invention relates to mobile communication technology, the particularly transmission of schedule information in the dedicated channel of enhancing.

Background technology

UMTS (Universal Mobile Telecommunication System, universal mobile telecommunications system) is one of global main at present 3G (Third Generation) Moblie (The Third Generation is called for short " 3G ") system.The UMTS system is made up of three parts, be core net (Core Network, abbreviation " CN "), universal mobile telecommunications system grounding wireless access network (UMTS Terrestrial Radio Access Network, be called for short " UTRAN ") and subscriber equipment (User Equipment is called for short " UE ") composition.The interface definition of CN and UTRAN is the Iu interface, and the interface definition of UTRAN and UE is the Uu interface.

UMTS protocol version the earliest is R99, and in this version, the carrying of uplink and downlink business all is based on dedicated channel, and the message transmission rate that can reach is 384Kbps.But along with the user is more and more higher to the demand of transmitting high speed data, the protocol specification of having released R4, R5, R6 three phases is subsequently successively organized in the UMTS standard formulation, introduced high speed downlink packet access (High Speed DownlinkPacket Access, be called for short " HSDPA ") technology and high speed uplink packet access (High Speed UplinkPacket Access, be called for short " HSUPA ") technology, peak rate up to 14.4Mbps and 5.76Mbps can be provided respectively, simultaneously, also improved spectrum efficiency greatly.

The main feature of HSUPA comprises in the R6 version: adopt short frame of 2ms or 10ms frame, adopt mixed self-adapting repeat requests (Hybrid Automatic Repeat Request is called for short " HARQ "), up base station fast dispatch technology etc. in physical layer.In order to realize the high-efficiency transfer of user uplink data, HSUPA has increased two uplink physical channels and three down physical channels newly, they are respectively enhancing Dedicated Physical Data Channel (the E-DCH Dedicated Physical DataChannel that is used to transmit data, be called for short " E-DPDCH "), be used to transmit enhancing Dedicated Physical Control Channel (the E-DCH Dedicated Physical Control Channel of accompanied by physical layer signaling, be called for short " E-DPCCH "), be used to control absolute grant channel (the Enhanced-DCH AbsoluteGrant Channel of user's uplink speed, be called for short " E-AGCH ") and relative authorization channel (Enhanced-DCH RelativeGrant Channel, be called for short " E-RGCH "), and the HARQ indicating channel (E-DCH Hybrid ARQ IndicatorChannel is called for short " E-HICH ") that is used to carry ACK (affirmation)/NACK (not confirming) information from base-station node.Except physical layer increases channel, in order to cooperate HSUPA, again at media interviews control (Medium Access Control, be called for short " MAC ") the middle MAC-e of introducing (e refers to strengthen) and two sublayers of MAC-es, to support HARQ and fast dispatch, simultaneously, can utilize MAC-e protocol Data Unit (MAC-e Protocol Data Unit, be called for short " MAC-e PDU ") carrier signaling and this signaling is read out at the MAC-e of base station layer.When in the MAC-e sublayer, forming MAC-e PDU, can multiplexing signaling MAC-es PDU, just a plurality of MAC-e PDU are integrated into MAC-es PDU.MAC-e and MAC-es are between physical layer and the MAC-d (d refers to special use).

Specifically, go up and dedicated channel (the Enhanced-Dedicated channel that strengthens at wireless air interface (Uu interface), abbreviation " E-DCH ") relevant agreement relates generally to physical layer, MAC layer and corresponding radio resource key-course (Radio Resource Controller is called for short " RRC ") layer.Wherein, the MAC layer of E-DCH comprises MAC-e, MAC-es and three media access control sublayer of MAC-d again.In the UTRAN side, the MAC-e entity is in base-station node, and the MAC-es entity is at service wireless network controller (Serving Radio Network Controller, be called for short " SRNC ") in, and, do not distinguish MAC-e and MAC-es in the UE side, they are present in the same functional unit.

The MAC layer structure of UE side E-DCH as shown in Figure 1, transmitting terminal at E-DCH is the UE side, from Radio Link control (Radio Link Control, abbreviation " RLC ") logic channel Dedicated Traffic Channel (the Dedicated Traffic Channel of layer, be called for short " DTCH ") and Dedicated Control Channel (Dedicated Control Channel, abbreviation " DCCH ") at first enters MAC-d and form MAC-d protocol Data Unit (Protocol Data Unit, be called for short " PDU "), the MAC-dPDU of same logic channel forms MAC-es PDU through MAC-es again, MAC-es PDU further forms MAC-e PDU again in MAC-e, after the E-DCH transmission channel is mapped to physical layer.

The MAC layer structure of UTRAN side E-DCH as shown in Figure 2, receiving terminal at E-DCH, it is the UTRAN side, from the MAC-e PDU of E-DCH transmission channel at first the MAC-e demultiplexing in being present in base-station node handle and form MAC-es PDU, be transferred to afterwards among the SRNC by after the processing such as MAC-es carries out that at first grand diversity is selected, reordered, decomposite each MAC-d PDU again and deliver to the MAC-d unit, after logic channel DTCH and DCCH deliver to rlc layer.

MAC-e PDU comprises head and payload part, its structure as shown in Figure 3, the payload part of MAC-e PDU comprises a plurality of multiplexing MAC-es PDU that together form, the length that optionally is used for up fast packet scheduling is the schedule information (SI) of 18 bits, and possible filling field, be used to make the length of MAC-e PDU to equal the E-DCH transport block length of appointment, the head of MAC-e PDU then is made of each MAC-es PDU relevant parameters DDI field and N field, the length of these two fields is 6 bits, in addition, the head of MAC-e PDU also comprises optional DDI0 field.

Protocol specification TS25.321 according to 3GPP, the form of MAC-e PDU is counted D and is had following four kinds of structures with whether transmitting SI and remaining bits, wherein, remaining bits is counted D deducts the contained n of a MAC-e PDU MAC-es PDU and corresponding n DDI that comprises and N field in MAC-e PDU head for the E-DCH transport block length the remaining bit number of length.

(a) transmit the MAC-e PDU of SI separately, this MAC-e PDU is made of the SI of this 18 bit long;

(b) when remaining bits is counted D less than 18 bits, then do not transmit SI and remaining bits is a filling bit;

(c) count D when remaining bits and be equal to or greater than 18 bits, but during less than 24 bits, then with SI directly level be associated in the last of MAC-es PDU, remaining bit is filling bit (a 0-5 bit);

(d) when remaining bits is counted D and is equal to or greater than 24 bits, then the SI level is associated in the last of MAC-es PDU, and is DDI0=" 111111 " at the last additional special DDI of MAC-e PDU head, remaining bit is a filling bit.

Because SI is that E-DCH carries out the metrical information that up fast packet scheduling relied on based on base-station node, so E-DCH supports to trigger and two kinds of SI report manners of Event triggered based on the cycle.

According to the up-to-date protocol specification TS25.321 of 3GPP, be in the state that does not allow to send data as UE, be that service authorization parameter is that special value " Zero_Grant " or all HARQ processes are when all being in non-active state, if the former data buffer zone of UE is from being zero becoming greater than zero, that is to say that UE does not have data to send by there being the data transmission to change into, though data (because of base-station node scheduling of resource reason does not allow to send) are arranged but when having the data of new high priority to arrive in the perhaps former data buffer zone, UE needs periodically to send SI to base-station node on E-DPDCH, till the authorization of service of last acquisition base-station node, wherein the SI report triggering cycle is by parameter " the Periodicity for Scheduling Info-no grant " control of Radio Resource control (Radio Resource Control is called for short " RRC ") layer configuration.

Even UE is in the state that allows to send data, be that service authorization parameter is not equal to " Zero_Grant " and at least one HARQ process is in active state, when the E-DCH Serving cell that Serving cell changes and this is new of E-DCH not when original service E-DCH Radio Link is concentrated, or arrive parameter " Periodicity for Scheduling Info-grant " predetermined timing by the RRC configuration during cycle, also will trigger on E-DPDCH, sending SI and report.

Wherein, the parameter " Periodicity for Scheduling Info-no grant " and the typical value of " Periodicity forScheduling Info-grant " are 2ms, 4ms, 10ms, 20ms, 50ms, 100ms, 200ms, 500ms, 1000ms, and information such as resource situation that reasonably to be system based on the scheduling strategy of E-DCH and base-station node handle the SI triggering cycle are determined.

In addition, when SI transmits in MAC-e PDU with data,, also will trigger new SI report if when the HARQ entity can not correctly be transferred to the Radio Link collection that comprises the E-DCH Serving cell with this MAC-e PDU.

At present, there is dual mode on E-DPDCH, to transmit SI, a kind of is the mode of being transmitted SI by MAC-e PDU separately, whole M AC-e PDU promptly is made of the SI of this 18 bit long in this case, another kind be SI with data transmission manner in MAC-e PDU, SI places that each MAC-es PDU's is last in this case.

Because E-DPDCH adopts the HARQ operation, so the HARQ operation is also supported in the transmission of SI.According to the TS25.321 of current version, to the situation that SI transmits separately, maximum number of retransmissions is 8 times that fix; The situation that SI is transmitted in MAC-e PDU with data, maximum number of retransmissions is by the HARQ configuration parameter decision of the stream of the E-DCH MAC-d in the data division that transmits simultaneously with SI among this MAC-e PDU, this parameter is by the information unit of RRC (Information Element, abbreviation " IE ") " E-DCH MAC-d flow maximum number of retransmission (E-DCH MAC-d flows maximum retransmission) " provides, and its span is 0-15 time.

Because the method for synchronization has been adopted in the operation of the HARQ among the E-DCH, the initial transmission and the re-transmission that are certain HARQ process always occur in the fixing moment, therefore for Transmission Time Interval (the Transmission Time Interval of 2ms, be called for short " TTI ") pattern, always have 8 parallel HARQ processes, for 10ms TTI pattern, always have 4 parallel HARQ processes.Therefore, the once re-transmission time of the HARQ process among the E-DCH (to be UE send a MAC-e PDU from certain TTI, do not receive response message NACK to what UE received that base-station node sends, and send the time of data retransmission thus), for 2ms TTI pattern, be that 8 * 2ms is 16ms; For 10ms TTI pattern, be that 4 * 10ms is 40ms.

In actual applications, there is following problem in such scheme: base-station node possibly can't obtain up-to-date SI report, thereby has influenced the performance of E-DCH ascending grouping scheduling.

Cause the main cause of this situation to be, under the dual mode of transmission SI on the E-DPDCH, for 2ms TTI, if transmit SI separately, then maximum demand retransmits for 8 times, that is to say that maximum demand is 128ms through 8 * 16ms, if SI transmits in MAC-e PDU with data, then maximum possible needs 15 re-transmissions, that is to say that maximum demand is 240ms through 15 * 16ms; For 10ms TTI, if transmit SI separately, then maximum demand retransmits for 8 times, that is to say that maximum demand is 320ms through 8 * 40ms, if SI transmits in MAC-e PDU with data, then maximum possible needs 15 re-transmissions, that is to say that maximum demand is 600ms through 15 * 40ms.

But, because when the incident that takes place to stipulate in the SI report triggering mechanism when user terminal, the remaining bits that reaches the MAC-e PDU of cycle of stipulating in the SI report triggering mechanism or certain TTI were counted D and be equal to or greater than 18, user terminal all needs to send new SI to base-station node to be reported.And, because the SI transmission has very high priority, even be on the HARQ process of special value " Zero_Grant " at service authorization parameter and be on the HARQ process of non-active state and all allow transmission SI, therefore, be not difficult to find, during the HARQ of certain SI report retransmitted, user terminal probably need send new SI to base-station node.

As shown in Figure 4, because except that the HARQ process that old SI report retransmits, other HARQ process all may be transmitted new SI report, and before this old SI report re-transmission is finished, if new SI report has successfully been received by base-station node, so, after this old SI report completes successfully transmission, will override this new SI report, thereby what cause that base-station node obtains is not up-to-date SI report, has reduced the performance of ascending grouping scheduling largely.

Summary of the invention

In view of this, main purpose of the present invention is to provide the transmission method and the base-station node of schedule information in a kind of dedicated channel of enhancing, makes that base-station node can be according to up-to-date SI report carrying out E-DCH ascending grouping scheduling.

For achieving the above object, the invention provides the transmission method of schedule information in a kind of dedicated channel of enhancing, comprise following steps:

The time of advent of the first transmission of base-station node record data;

If comprise schedule information in the data that described base-station node correctly receives, then only when this data described is later than the schedule information time of reception of the last time of being stored the time of advent, this base-station node is just dispatched according to the schedule information in these data, and described schedule information time of reception is updated to the described time of advent of these data.

Wherein, if comprise schedule information in the data that described base-station node correctly receives, but the described time of advent of these data early than the schedule information time of reception of the last time of being stored, then this base-station node is ignored the schedule information in these data.

In this external described method, described base-station node judges according to the retransmission sequence number in the Dedicated Physical Control Channel that strengthens dedicated channel whether the data in the corresponding Transmission Time Interval are first transmission.

In this external described method, described base-station node writes down the time of advent of the first transmission of described data by the pairing Connection Frame Number of Transmission Time Interval and the subframe numbers of preservation with described data.

In this external described method, also comprise following steps:

Described base-station node is to described schedule information time of reception and carry out initialization the described time of advent.

The present invention also provides a kind of base-station node, comprises:

Logging modle is used for the time of advent that record data transmit for the first time;

Memory module is used to store the last schedule information time of reception, and described schedule information is transmitted in the dedicated channel that strengthens;

Scheduler module is used for according to the schedule information scheduling resource;

Update module, the schedule information time of reception that is used for the last time of will be stored is updated to the time of advent of the first transmission of described data;

Judge module, be used to judge whether the data that described base-station node receives are first transmission, if, then notify described logging modle to write down the time of advent of the first transmission of these data, and when correctly receiving these data, judge whether it comprises schedule information, if, judge further then whether these data are later than the schedule information time of reception of the last time in the described memory module the described time of advent in described logging modle, if, then trigger described scheduler module and dispatch, and notify the schedule information time of reception of described update module the last time to be updated to the time of advent that these data are transmitted for the first time being stored according to this schedule information.

By relatively finding, the main distinction of technical scheme of the present invention and prior art is, RSN by the E-DPCCH transmission judges whether the data that base-station node receives are first transmission, if words, base-station node writes down the time of advent of the first transmission of these data by the pairing Connection Frame Number of TTI and the subframe numbers of preservation with these data.When base-station node receives the data that include SI, judge the time of reception that whether is later than the last SI that is stored the time of advent of the first transmission of these data, if, then dispatch according to the SI in these data, and the time of reception of the last SI that stored is updated to time of advent of the first transmission of these data, otherwise, ignore the SI in these data.

During user terminal transmits the re-transmission of SI separately to base-station node, if this user terminal has new SI to need transmission, then stop to transmit this SI of transmission separately, new SI is transferred to described base-station node.

Difference on this technical scheme, brought comparatively significantly beneficial effect, promptly judge by base-station node whether the SI report that receives is the up-to-date SI report that user terminal sent, perhaps, when user terminal has new SI to send, stop the re-transmission of original SI that sends separately, guarantee that base-station node can in time obtain the up-to-date SI report from user terminal, avoided because the new SI report that re-transmission caused of SI may be reported the problem that be covered by old SI, thereby guaranteed the performance of E-DCH ascending grouping scheduling.

Description of drawings

Fig. 1 is a UE side E-DCH MAC structural representation in the prior art;

Fig. 2 is a UTRAN side E-DCH MAC structural representation in the prior art;

Fig. 3 is the structural representation of MAC-e PDU in the prior art;

Fig. 4 is a plurality of HARQ process transmission SI report schematic diagrames in the prior art;

Fig. 5 is the transmission system structure chart according to schedule information among the E-DCH of first embodiment of the invention;

Fig. 6 is the transmission method flow chart according to schedule information among the E-DCH of second embodiment of the invention;

Fig. 7 is the transmission method flow chart according to schedule information among the E-DCH of third embodiment of the invention;

Fig. 8 is the transmission method flow chart according to schedule information among the E-DCH of four embodiment of the invention.

Embodiment

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 accompanying drawing.

Core of the present invention is, the base-station node of UTRAN side is noted the time of advent of received new data, and correct judgment is that receive and the time of reception that the time of advent whether be later than the last SI that stored of data that include SI during as new data transmission, if, then this base-station node is according to the SI scheduling resource in these data, and the time of advent the when time of reception of the last SI that stored is updated to these data as new data transmission.Perhaps, judge during transmitting the re-transmission of SI separately whether have new SI need send to base-station node by user terminal, if, then stop to retransmit this SI of transmission separately immediately, and on the nearest TTI that can transmit new SI, this new SI is transferred to base-station node.

More than core of the present invention is introduced, describe below in conjunction with the transmission system of accompanying drawing schedule information among the first execution mode E-DCH of the present invention.

As shown in Figure 5, base-station node in the UTRAN side comprises judge module, be used to judge whether the data that receive are the data of first transmission, whether be new data promptly, and be used for judging the correct data that receive whether comprise SI, if then further judge the time of reception that whether is later than the last SI the time of advent of the first transmission of the data that this comprises SI; Logging modle is used for the time of advent that record data transmit for the first time; Memory module is used to store the time of reception of the last SI; Update module, the SI time of reception that is used for the last time of will be stored is updated to the time of advent of the first transmission of data; And scheduler module, be used for coming scheduling resource according to the SI that is comprised in the data.

Below the connecting each other of each intermodule of base-station node in the present embodiment carried out simple declaration.

Judge module in the base-station node judges whether the data from the UE side that this base-station node receives are new data, if, when that is to say these data for first transmission, the time of advent of the first transmission of these data of Notification Record module records. when the data from the UE side are correctly received by base-station node, judge module in this base-station node judges whether comprise SI in these data, if, if then further judge the time of reception that whether is later than the last SI in the memory module time of advent that these data are write down in logging modle. judge module draws the time of reception that is later than the last SI in the memory module time of advent that the data that comprise SI are write down through judgement in logging modle, then triggering scheduler module dispatches according to the SI in these data, and the update notifications module is updated to the time of reception of the last SI that stored the time of advent of the first transmission of these data, otherwise, ignore the SI. in these data

The transmission method of schedule information as shown in Figure 6 among the second execution mode E-DCH of the present invention.

In step 610, the E-DPCCH of base-station node reception and decoding current TTI.Specifically, base-station node passes through the E-DPCCH of reception and decoding current TTI, the phase related control information of the data of being transmitted among the inherent E-DPDCH of acquisition current TTI.

Then, enter step 620, base-station node judges whether the data of being transmitted among the inherent E-DPDCH of current TTI are first transmission.Specifically, because the retransmission sequence number (RSN) in the E-DPCCH is used for identifying the number of retransmissions of the data that the inherent E-DPDCH of corresponding TTI transmitted, such as, if RSN is 0, represent that then these data are for first transmission, if RSN is 1, represent that then these data are the first time that retransmits, and the like.So base-station node can judge whether the data of being transmitted among the inherent E-DPDCH of corresponding TTI are new data according to the RSN in the E-DPCCH.Transmit for first if base-station node draws the data of being transmitted among the inherent E-DPDCH of current TTI through judgement, then enter step 630, otherwise, step 640 entered.

In step 630, base-station node writes down the time of advent of the first transmission of these data.Specifically, for each HARQ process, base-station node all defines a variable, is used for the time of advent of minute book HARQ process new data, and this variable is carried out initialization.Such as for each HARQ process, base-station node all defines " New_Data_Arrival_Time " variable, and is zero with this initialization of variable.When base-station node in a single day know transmit among the inherent E-DPDCH of current TTI be new data the time, by preserving pairing Connection Frame Number of TTI and the subframe numbers with these data, noted the time of advent of the first transmission of these data.At above-mentioned case, will be kept at " New_Data_Arrival_Time " variable of HARQ process under these data with pairing Connection Frame Number of the TTI of these data and subframe numbers, note the time of advent of the first transmission of these data.

Then, enter step 640, base-station node judges whether the data of E-DPDCH in the current TTI are correctly received.Specifically, when base-station node to received data decode correct and send the ACK response message after, show that promptly the affiliated HARQ process of these data has completed successfully the reception of this secondary data, enter step 650, otherwise, represent that mistake appears in these data in transmission course, need to retransmit, therefore turn back in the step 610.

In step 650, base-station node further judges in the data that success receives in the current TTI whether comprise SI.If include SI, then enter step 660, otherwise, process ends.

In step 660, base-station node is judged the time of reception that whether is later than the last SI that is stored the time of advent of the first transmission of the data that this includes SI.Specifically, base-station node be used to write down the last SI time of reception, and this global variable carries out initialization to global variable of all HARQ procedure definitions.Such as, define " Restored_SI_Arrival_Time " variable, the SI time of reception that record is the last, and be earlier zero with this initialization of variable.At above-mentioned case, when including SI in the base-station node data that success receives in current TTI, whether " New_Data_Arrival_Time " variable of judging HARQ process under these data is greater than the SI time of reception of the last time of being preserved in " Restored_SI_Arrival_Time " variable.If " New_Data_Arrival_Time " variable is greater than " Restored_SI_Arrival_Time " variable, be later than the last SI time of reception the time of advent of the i.e. first transmission of these data, show that then the SI in these data is up-to-date SI, enter step 670, otherwise, enter step 680.

In step 670, because base-station node has known that the SI in these data is up-to-date SI, therefore, according to this SI scheduling resource, and upgrade the time of reception of last SI. specifically, base-station node is delivered to the E-DCH dispatch unit with the SI in these data, carry out the scheduling of resource according to this SI by this dispatch unit. and the SI time of reception of the last time of being stored is updated to time of advent of the first transmission of these data. at above-mentioned case, base-station node is " New_Data_Arrival_Time " variable of the described HARQ process of these data with " Restored_SI_Arrival_Time " variable update, even " Restored_SI_Arrival_Time "=" New_Data_Arrival_Time ".

In step 680, owing to early than the SI time of reception of the last time, therefore show that the SI in these data is not up-to-date SI the time of advent of the first transmission of these data.For up-to-date SI is covered by old SI, base-station node is ignored the SI in these data.

In the present embodiment, judge by base-station node whether the SI report that receives is the up-to-date SI report that user terminal sent, guarantee that base-station node can in time obtain the up-to-date SI report from user terminal, avoided because the new SI report that re-transmission caused of SI may be reported the problem that be covered by old SI, thereby guaranteed the performance of E-DCH ascending grouping scheduling.

The transmission method of schedule information as shown in Figure 7 among the 3rd execution mode E-DCH of the present invention.

In step 710, user terminal judges whether transmitting SI separately to base-station node.If, then enter step 720, otherwise, process ends.

In step 720, whether user terminal is judged during the re-transmission of this SI that transmits separately, is had new SI need send to base-station node again.Specifically, when user terminal after base-station node transmits SI separately, do not confirm to reply if received the NACK that base-station node returns, then need with this separately the SI of transmission retransmit to base-station node, confirm to reply until receiving the ACK that returns from base-station node.If during this retransmits, in case one of following situation is arranged at least, then this user terminal will have new SI need send to base-station node again:

(1) incident stipulated in the SI trigger mechanism has taken place in user terminal;

(2) user terminal has reached the predetermined timing cycle in the SI trigger mechanism;

(3) the remaining bits number of the MAC-e PDU that transmits in certain TTI was more than or equal to 18 o'clock.

If during transmitting the re-transmission of SI separately, this user terminal has new SI need send to base-station node again, then enters step 730, otherwise, process ends.

In step 730, user terminal stops to retransmit this SI of transmission separately immediately.Specifically, during the re-transmission of user terminal at independent transmission SI, if there is new SI need send to base-station node again, then stop this retransmission operation of the HARQ process of transmission SI separately immediately, comprise the harq buffer district of refreshing this HARQ process, the variable in the HARQ process " CURRENT_TX_NB " and " CURRENT_RSN " are set to zero etc.

Then, in step 740, user terminal transmits this new SI on the nearest TTI that can transmit new SI.

In the present embodiment, when user terminal has new SI to send, stop the re-transmission of original SI that sends separately, guarantee that base-station node can in time obtain the up-to-date SI report from user terminal, avoided because the new SI report that re-transmission caused of SI may be reported the problem that be covered by old SI, thereby guaranteed the performance of E-DCH ascending grouping scheduling.

The 4th execution mode of the present invention as shown in Figure 8.The main points of this execution mode are user terminal in the situation of transmitting SI to base-station node separately, do not enable the HARQ retransmission processes, promptly to the independent situation of transmitting SI, behind initialization first time new data if UE receives NACK response message from Node B, no longer retransmit old data, and directly produce new SI information again and on this HARQ process, carry out new transmission.

Specifically, in step 810, user terminal is received the NACK from Node B, represents current HARQ data transmission fails.

After this in step 820, user terminal judges whether the data of this bust this are the SI report of transmission separately, if then enter step 830, otherwise enter step 840.

In step 830, user terminal regenerates new SI report and start new transmission on the HARQ process.The SI report that can guarantee each transmission so all is up-to-date.Not necessarily still transmission SI report separately when transmitting again certainly if there is this moment new MAC-e PDU to need transmission, then can attaches the SI report in this MAC-e PDU and transmit.

In step 840, because bust this is general data, so enable the HARQ retransmission processes routinely.

Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims

1. the transmission method of schedule information in the dedicated channel of an enhancing is characterized in that, comprises following steps:

The time of advent of the first transmission of base-station node record data;

2. the transmission method of schedule information in the dedicated channel of enhancing according to claim 1, it is characterized in that, if comprise schedule information in the data that described base-station node correctly receives, but the described time of advent of these data, then this base-station node was ignored the schedule information in these data early than the schedule information time of reception of the last time of being stored.

3. the transmission method of schedule information in the dedicated channel of enhancing according to claim 1, it is characterized in that described base-station node judges according to the retransmission sequence number in the Dedicated Physical Control Channel that strengthens dedicated channel whether the data in the corresponding Transmission Time Interval are first transmission.

4. the transmission method of schedule information in the dedicated channel of enhancing according to claim 1, it is characterized in that, described base-station node writes down the time of advent of the first transmission of described data by the pairing Connection Frame Number of Transmission Time Interval and the subframe numbers of preservation with described data.

5. according to the transmission method of schedule information in the dedicated channel of each described enhancing in the claim 1 to 4, it is characterized in that, also comprise following steps:

6. a base-station node is characterized in that, described base-station node comprises: