CN101296480B - Triggering and data distribution method and apparatus for reinforced uplink scheduling information - Google Patents

Triggering and data distribution method and apparatus for reinforced uplink scheduling information Download PDF

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CN101296480B
CN101296480B CN2007100969903A CN200710096990A CN101296480B CN 101296480 B CN101296480 B CN 101296480B CN 2007100969903 A CN2007100969903 A CN 2007100969903A CN 200710096990 A CN200710096990 A CN 200710096990A CN 101296480 B CN101296480 B CN 101296480B
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schedule information
user terminal
mac
timer
length
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CN101296480A (en
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陈慧
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2008/070799 priority patent/WO2008131683A1/en
Priority to KR20097024330A priority patent/KR101124365B1/en
Priority to JP2010504430A priority patent/JP5001425B2/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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Abstract

The invention provides a data distribution method and a device for intensifying an uplink. The method comprises the following steps: a user terminal judge whether the report of dispatching information is needed to be automatically triggered; if the report of the dispatching information needed to be automatically triggered, the user terminal reserves bits for the dispatching information and determines the usable loading length, to ensure that the usable loading length is smaller than or equal to the difference between the maximum grouping length supported by authorized resources and the bits of the dispatching information. If the report of the dispatching information does not need to be automatically triggered, the user terminal can determine the usable loading length, to ensure that the usable loading length is smaller than or equal to the maximum grouping length supported by authorized resources and the bits of the dispatching information; and the loading distribution of the data of logic channel buffer is executed according to the usable loading length. The method and the device of the invention can ensure that the user terminal is able to consider the transmission of the dispatching information first at the time of reporting the dispatching information required by the system, and provide effective resource guarantee for the transmission of the dispatching information, thus improving the system dispatching efficiency and the system resource utilization ratio.

Description

The triggering of enhanced uplink schedule information and data distributing method and device
Technical field
The present invention relates to field of wireless communication; More specifically; The triggering and data distributing method and the device that relate to a kind of enhanced uplink schedule information, be used for confirming schedule information trigger mechanism, and can according to whether needs trigger schedule information on offer the distribute data load.
Background technology
Enhanced uplink is commonly referred to as HSUPA (High Speed Uplink PacketAccess; High speed uplink packet inserts), it is intended to, and efficient that technology through the advanced person improves up link effectively supports that web browses, video, multimedia messages and other IP-based business.3GPP (3G (Third Generation) Moblie partnership projects) TDD (tdd systems) comprises that TD-CDMA (time division CDMA access) and TD-SCDMA (TD SDMA access) have accomplished the standardization effort of HSUPA at present.
In TDD HSUPA system, the difference of pressing scheduling mode, the enhanced uplink business is divided into dispatching services and non-scheduling service; Wherein, the resource of non-scheduling service is that UE (User Equipment, user terminal) distributes by SRNC (service wireless network controller); The method of salary distribution is identical with existing dedicated channel allocation mode, and in dispatching services, is Node B (Node B by SRNC; The base station) distributing the enhanced uplink resource pool, is UE scheduling resource allocation by Node B.
Increased a kind of transmission channel E-DCII (enhanced uplink dedicated transmission channel) in the enhanced uplink business newly; The TTI of E-DCH (Transmission Time Interval) is 5ms; The data that are mapped on the E-DCH transmission channel are called MAC-e PDU (enhancing media access control protocol data unit), can multiplexing one or more MAC-d streams in dividing into groups.
MAC-d stream is a data stream unit on the enhanced uplink service transmission channel, on MAC-d stream, is mapped with one or more logic channels.RNC disposes one or more MAC-d streams according to the service conditions of UE for it; Each MAC-d banishs and is equipped with cover HARQ Profile (mixing an automatic repeat requests transmission property) parameter; Comprise power offset, maximum retransmission, maximum retransmit timer, to guarantee transmission quality and delay requirement.In addition, in order to improve efficiency of transmission, high level also can be put a multiplexing tabulation for each MAC-d banishs, and has wherein stipulated to flow with other MAC-d that this MAC-d stream transmits in same MAC-e PDU.
The physical channel relevant with E-DCH has:
One, E-PUCH (the E-DCH uplink physical channel is claimed the enhanced uplink physical channel again) is a kind of Traffic Channel that is used to carry the E-DCH transmission channel;
Two, E-UCCH (enhanced uplink control channel): be a kind of physical layer control channel; It is carried in the physical layer indication territory of E-PUCH, and the control information of carrying comprises: E-TFCI (enhanced uplink transport format combination index) and HARQ information (comprising process ID and number of retransmissions information);
Three, E-AGCH channel (E-DCH absolute grant channel) is a kind of control channel, is used for Node B transmission authorization message, is included as single UE and distributes information such as E-PUCH time slot, code channel, power;
Four, (E-DCH inserts ascending control channel to E-RUCCH at random; Be that enhanced uplink random inserts ascending control channel), be a kind of physical layer control channel, being used for UE is not having under the situation of authorizing; The relevant information of transmission auxiliary dispatching, E-RUCCH uses the Physical Random Access Channel resource; And
Five, E-HICH (E-DCH hybrid automatic repeat request indication channel) is a kind of physical layer control channel, is used for Node B and carries HARQ (mixing automatic repeat requests) indication information.
Fig. 1 is the hierarchical diagram of enhanced uplink connecting system UE side rlc layer to physical layer.Compare with original system, increased a MAC-es/e entity newly, this entity function comprises: MAC-e PDU is stored and retransmits; Authorization message according to network is surveyed is selected E-TFC (enhancing transformat combination); And according to the E-TFC selection result, multiplex data is formed MAC-e PDU.
Owing in a TTI, have only an E-DCH transmission channel to be mapped on the E-PUCH physical channel,, in fact just select the transformat of an E-DCH transmission channel so select " enhancing transformat combination ".In the TD-CDMA system, the selection of E-TFC comprises definite transport block length (being the length of MAC-e PDU bag), spreading code and modulation system, and in the TD-SCDMA system, the selection of E-TFC only comprises confirms transport block length and modulation system.According to the selection result of E-TFC, the MAC-e entity is distribute data from the logic channel buffering area, forms MAC-e PDU.
As shown in Figure 5; System provides a transport block length form; All can there be 128 transport block length available to each authorization resources (being timeslot number) here; After UE chooses transport block length and modulation system, only need the transport block length index information (that is, E-TFCI) is sent to Node B.
When Node B received the E-PUCH channel from UE, Node B at first took out the E-UCCH channel, obtained transport format information E-TFCI, HARQ information.Node B can know transport block length, the modulation system of MAC-e PDU among the E-PUCH from E-TFCI information; From HARQ information, Node B can know this transmission is new the grouping or retransmission packet, and obtains the redundancy version information, HARQ progress information etc. of E-PUCH channel.After obtaining these information, Node B to the despreading of E-PUCH data division, separate and be in harmonious proportion the HARQ decoding, and according to decoded result to UE feeding back ACK or nack message.
As shown in Figure 2, the data service flow graph of UE side from the rlc layer to the physical layer is provided in the enhanced uplink business.Wherein, may further comprise the steps:
Step S202, the RLC PDU of a logic channel sends to the MAC-d layer, directly is mapped as a MAC-d PDU;
Step S204 is multiplexed into a MAC-es SDU (Service Data Unit) from a plurality of MAC-d PDU of same logic channel, and increases header information (transmission sequence number TSN, 3 bits), forms MAC-es PDU; And
Among the step S206, MAC-es PDU sends to the MAC-e layer, and the MAC-es PDU that the MAC-e layer can be multiplexed among the same PDU couples together, and increases header information (several DDI-N to).
Wherein, DDI (data description indication) is used to point out the affiliated logic channel of MAC-d PDU, MAC-d stream, MAC-d PDU length information, and N is the MAC-d PDU number with identical DDI value.
In step S206, the MAC-e entity is at first confirmed the current highest priority logical channel X that needs transmission, and corresponding MAC-d stream Y (logic channel can only be mapped on the MAC-d stream).Then, confirm and to be multiplexed into other MAC-d stream among the same MAC-e PDU with Y, Y is formed a set B with the corresponding logic channel of these MAC-d streams according to the multiplexing list information of high level configuration.At last, from set B, obtain MAC-es PDU by the priority of logical channels order successively, be multiplexed among the MAC-ePDU.
In dispatching services; UE need report the scheduling of some information with auxiliary Node B; These information are called schedule information SI (Scheduling Information), comprising path loss metrical information of UE buffer information, power headroom, this sub-district and adjacent sub-district etc., have 23 bits.When UE had upstream data to send, UE just possibly trigger the transmission of schedule information, and the trigger mechanism of SI comprises in the TD-SCDMA system at present:
1. when UE does not authorize but has data to transmit in the buffering area, SI will send on the E-RUCCH channel, owing to experience random access procedure, thereby consuming time longer.
2. have under the situation of mandate; When if UE is multiplexed into the enough transmitting scheduling information of filling bit (Padding) behind the MAC-e PDU with the logic channel buffer data (; Filling bit is more than or equal to 23 bits); UE will be with schedule information in MAC-ePDU, this mechanism abbreviates " incidentally mechanism " as.
3. have under the situation of mandate, high-rise is UE configuration one-period property timer T_WAIT, after schedule information of transmission, starts the T_WAIT timer, does not send new schedule information before the timer expiry; Behind the timer expiry, user terminal sends schedule information; This mechanism abbreviates " periodic triggers mechanism " as, also is appreciated that to be " initiatively triggering " mechanism.
Consider that the TDD system uplink is resource-constrained, the UE resource of can not obtaining the authorization constantly, thereby above-mentioned the 2nd point " incidentally mechanism " is more suitable for the system in TDD; We also are not difficult to find, above-mentioned the 2nd and the 3rd obviously exists contradiction.This is the defective in the present standard.
Under following situation, SI will send on the E-PUCH channel separately:
(1) because the resource of authorizing is fewer, the transport block length that authorization resources allows can't service data transmission (the minimum MAC-d PDU length of logic channel is greater than authorizing the transport block length that allows), so this moment, UE only sent SI on the resource of authorizing; And
(2) because the periodicity of schedule information reports mechanism or the inner trigger mechanism of UE; Make UE on current authorization resources, must send SI; But because the resource-constrained that obtains, thus in MAC-e PDU except carrying schedule information, can't carry other business datum again.
As shown in Figure 3, the transmission situation of three kinds of schedule informations is provided.Fig. 3 (a) is the situation of sending schedule information through E-RUCCH; Fig. 3 (b) is the situation that SI and business datum are sent in a MAC-e PDU bag; DDIO in the packets headers is used to indicate the grouping end to have schedule information; Also can not need DDIO in some cases; NodeB can oneself release divide a group end whether to carry schedule information, and the effect of filling bit is to guarantee that the MAC-e PDU length that finally obtains is a value in the transport block length form of system design, and Fig. 3 (c) is the schedule information situation during transmission in MAC-e PDU separately.
Thereby there are three kinds of situation in MAC-e PDU shown in Figure 2:
The simple service data transmission of possibility;
Service data transmission and schedule information; And
Independent transmitting scheduling information.
Recommended a kind of selection of transformat and the flow process of data allocations during the enhanced uplink technology of 3GPP exploitation TD-CDMA system and TD-SCDMA system, abbreviation " transformat selection flow process " is specifically with reference to figure 4 (can with reference to 3GPP TS25.321 agreement).
As shown in Figure 4, may further comprise the steps:
Step S401, UE need obtain the set of data source, wherein can be subdivided into: UE confirms that at first current TTI is used for scheduled transmission, also is non-scheduled transmission; UE confirms to meet the logical channel set A that transmission demand is arranged of TTI transport-type (scheduling or non-scheduling); From set A, confirm highest priority logical channel X, the MAC-d stream that logic channel X is corresponding is Y, and the power excursion among the HARQ Profile of MAC-d stream Y will be used for following step; And definite set B, it is a sub-set of set A, in set B, comprises the logic channel that is mapped to MAC-d stream Y, and the logic channel that can flow other multiplexing MAC-d stream of Y with MAC-d;
Step S402; The UE maximum transmitted block length that resource allowed of obtaining the authorization; Wherein can be subdivided into: produce transport block length set C1 and C2; Wherein corresponding to 16QAM (16 quadrature amplitude modulation) modulation system, each transport block length in C1 and C2 need satisfy between the transmission code rate on the current authorization resources should drop on the maximum, minimum code rate of high-rise appointment (high-rise for the transmission bearer of UE configuring E-DCH type the time, can specify the operable maximum of UE, minimum code rate) to C1 corresponding to QPSK (QPSK) modulation system, C2; Confirm subset D 1 and the D2 of C1 and C2 respectively, make that the desired transmitting power of transport block length among D1, the D2 is less than or equal to authorization power, the calculating of transmitting power is P E-PUCH=P E-base+ L+ β e+ K, wherein P E-PUCHIt is the E-PUCH channel transmitting power; Pe-base is the power closed loop amount of UE storage; Be controlled by the power control commands word on the E-AGCH channel, L is the circuit loss value that UE measures, and β e is the power excursion that current selected transport block length, code channel resource and modulation system obtain; And K is MAC-ePDU power excursion (power excursion of the MAC-d stream at highest priority logical channel place, the i.e. power excursion of MAC-d stream Y); From D1 and D2, confirm the maximum transport block length k that supports; And
Step S403; UE by priority of logical channels order assignment data, forms MAC-e PDU from set B, and selecting modulation mode; Specifically can be divided into: the MAC-d PDU that from set B, selects each logic channel with the priority of logical channels order successively; Form MAC-es PDU, be multiplexed among the MAC-e PDU, the feasible MAC-e PDU length≤k that finally obtains; If data allocations success (that is, authorization resources is enough) is selected the modulation system that makes that transmitted power is minimum according to the MAC-e PDU length that finally obtains so, send and divide into groups; If select unsuccessful (that is, authorization resources is not enough), regain set A, new set A=former set A-set B if new set A is not an empty set, begins to reselect transport block length from step 401, if new set A is an empty set, UE will only send schedule information.
Select flow process to be not difficult to find out that there is following problem in prior protocols from above transport block length:
Transformat selects can not support in the flow process second kind of schedule information transmission situation as shown in Figure 3; Just UE does not consider the triggering of schedule information when carrying out data allocations, but only distributes the independent transmitting scheduling information of just having an opportunity under the situation of failing in business datum.This does not obviously meet the designing requirement of enhanced uplink.
Can find out that about the triggering of schedule information the existing protocol and the analysis of data allocations flow process existing schedule information trigger mechanism and data allocations all have problems from above.Trigger from schedule information, because schedule information directly influences the scheduling decision of NodeB, thereby its real-time should be guaranteed; Because in the TDD system; Ascending resource is limited, if UE does not have authorization resources, can only send schedule information through the E-RUCCH channel so; This transmission to schedule information has brought bigger time-delay; Be unfavorable for the scheduling of NodeB, thus foregoing " incidentally mechanism " be TDD system a kind of more satisfactory schedule information triggering mode under the limited situation of ascending resource, but present " periodic triggers mechanism " has obviously limited the use of " incidentally mechanism ".From the data allocations of schedule information, under suitable schedule information trigger mechanism, the MAC-e entity of UE needs to cooperate schedule information to trigger function in data allocation process, reasonably arranges the transmission of schedule information.Because the data allocations of the triggering of schedule information and MAC-e PDU has the incidence relation of nature, thereby two processes can unify consideration, are badly in need of a kind of scheme and solve above-mentioned these problems.
Summary of the invention
In view of the above problems; The invention provides a kind of triggering and data distributing method and device of schedule information of enhanced uplink; Be used for confirming a kind of rational trigger mechanism; And according to whether needs initiatively trigger schedule information on offer the distribute data load, it can be applied to TD-CDMA (time division CDMA) system and TD-SCDMA (TD SDMA) system.
According to an aspect of the present invention; A kind of triggering method of enhanced uplink schedule information is provided; May further comprise the steps: high-rise for said user terminal configuration schedules information triggers timer T, be used for the triggering that user terminal has the schedule information under the authorization resources situation; If the filling bit that the logic channel buffer data is multiplexed into behind the enhancing media access control protocol data unit can hold schedule information, then said user terminal will send schedule information in said enhancing media access control protocol data unit; And said user terminal restarts said timer T when on said authorization resources, sending new schedule information, and after said timer T is overtime, said user terminal will initiatively trigger the transmission of schedule information.
In above-mentioned triggering method, the process that said user terminal restarts timer comprises: if said timer T is activated, the said timer T that then said user terminal at first resets and started restarts said timer T then; If said timer T is not activated, then said user terminal will start said timer T.
Another aspect of the present invention provides a kind of data distributing method of enhanced uplink, and it can may further comprise the steps: step S602, user terminal judge whether initiatively to trigger reporting of schedule information; Step S604; Initiatively trigger reporting of schedule information if desired, then user terminal is reserved the bit of schedule information, and confirms available load length; Make available load length be less than or equal to bit poor of maximum packet that authorization resources supports and schedule information; And if do not need initiatively to trigger reporting of schedule information, then user terminal is confirmed available load length, makes available load length be less than or equal to the maximum packet that authorization resources is supported; And step S606, carry out the sharing of load of logic channel buffer data according to available load length.
In the method; Step S606 comprises following processing: for each logical message in second set; Take out business datum successively by each priority of logical channels order; Make the business datum taken out be less than or equal to available load length, and available load length is updated to the length of being left that deducts after the business datum of being taken out with the length sum of header overhead; And user terminal is multiplexed into the business datum of each logic channel and header overhead and/or schedule information and strengthens in the media access control protocol data unit; Wherein, Said second set comprise be mapped to first set in the corresponding MAC-d of highest priority logical channel stream (specialized media access control stream) logic channel and with the logic channel of multiplexing other MAC-d stream of this MAC-d stream, wherein first to gather be the logical channel set that transmission demand is arranged that meets the TTI transport-type.
In addition, user terminal determines whether carrying out reporting of schedule information based on schedule information trigger mechanism of the present invention.Among the step S602, schedule information is initiatively sent in user terminal decision behind the timer expiry of high level configuration; Among the step S606; If user terminal does not initiatively trigger the transmission of schedule information in S602; And during the transmission of the enough schedule informations of filling bit in the enhancing media access control protocol data unit after process logic channel buffer data distributes, user terminal will partly send schedule information at filling bit.Schedule information is sent in the enhancing media access control protocol data unit of the enhancing media access control protocol data unit of scheduling type or non-scheduling type.
Another aspect of the present invention provides a kind of schedule information triggering of enhanced uplink and the device of data allocations, and it can comprise: the schedule information trigger element, be positioned on the user terminal, and be used to judge whether that needs trigger reporting of schedule information; Confirm the unit; Under the indication of schedule information trigger element, reserve the bit of schedule information; And confirm available load length, make available load length be less than or equal to bit poor of maximum packet that authorization resources supports and schedule information, and do not needing initiatively to trigger under the situation about reporting of schedule information; Then user terminal is confirmed available load length, makes available load length be less than or equal to the maximum packet that authorization resources is supported; And allocation units, be used for carrying out the burden apportionment of logic channel buffer data according to available load length.
In addition; Allocation units comprise: updating block; Be used for each logical message for second set; Take out business datum successively by each priority of logical channels order, make the business datum of being taken out and header overhead length be less than or equal to available load length, and available load length is updated to the length of being left that deducts after the business datum of being taken out; And Multiplexing Unit; Be used for the business datum of each logic channel and header overhead and/or schedule information be multiplexed into and strengthen media access control protocol data unit; Wherein, Said second set comprise be mapped to first set in the corresponding MAC-d of highest priority logical channel stream logic channel and with the logic channel of multiplexing other MAC-d stream of MAC-d stream, wherein first set is the logical channel set that transmission demand is arranged that meets the TTI transport-type.
Wherein, the schedule information trigger element decides user terminal whether initiatively to trigger reporting of schedule information based on schedule information triggering method provided by the invention.Schedule information is sent in the enhancing media access control protocol data unit of the enhancing media access control protocol data unit of scheduling type or non-scheduling type.
Thereby, through the present invention, solved TDD system problem that reports of the Real-Time Scheduling information of carrying out of better utilization authorization resources, maximum possible how under resource-constrained situation; A kind of data distributing method is provided simultaneously; Make UE can pay the utmost attention to the transmission of schedule information constantly at the reporting of scheduling information (SI) of system requirements; Solved the defective of original system; Simultaneously owing to allow UE can on non-scheduling resource, send schedule information, for the transmission of schedule information provides the efficient resource guarantee, in addition; Because schedule information has played important reference role to the scheduling of Node B, visible the present invention provides solution effectively to raising system call efficient, raising resource utilization ratio.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the system assumption diagram of the enhanced uplink connecting system UE side in the correlation technique;
Fig. 2 is the DFD of the enhanced uplink connecting system UE side in the correlation technique;
Fig. 3 is the format chart of three kinds of schedule information transmission data;
Fig. 4 is the flow chart of correlation technique " E-TFC selects flow process ";
Fig. 5 is the exemplary plot of the transport block length form that provides of related system;
Fig. 6 is the flow chart according to the data distributing method of enhanced uplink of the present invention;
Fig. 7 is the sketch map according to the data allocation process of the embodiment of the invention;
Fig. 8 is the flow chart of " E-TFC selects flow process " that comprises the data allocation process of Fig. 7;
Fig. 9 is the block diagram according to the data distribution device of enhanced uplink of the present invention;
Figure 10 is the flow chart of the triggering method of enhanced uplink schedule information according to an aspect of the present invention; And
Figure 11 is the flow chart of the triggering method of enhanced uplink schedule information according to a further aspect in the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Fig. 6 is the flow chart according to the data distributing method of enhanced uplink of the present invention.As shown in Figure 6, this method may further comprise the steps:
Step S602, user terminal judge whether initiatively to trigger reporting of schedule information;
Step S604; Initiatively trigger reporting of schedule information if desired, then user terminal is reserved the bit of schedule information, and confirms available load length; Make available load length satisfy first condition; And if need not trigger reporting of schedule information, then user terminal is confirmed available load length, makes available load length satisfy second condition; And
Step S606 carries out data load according to available load length and distributes.
Wherein among the step S602, according to the trigger mechanism of schedule information according to the invention, user terminal will initiatively trigger the transmission of schedule information after the timer T of high level configuration is overtime.
Wherein, first condition is: available load length is less than or equal to bit poor of maximum packet that authorization resources supports and schedule information.Second condition is: available load length is less than or equal to the maximum packet that authorization resources is supported.
Step S606 comprises following processing: for each logical message in second set; Take out business datum successively by each priority of logical channels order; Make the business datum taken out and header overhead length be less than or equal to available load length, and available load length is updated to the length of being left that deducts after the business datum of being taken out; And user terminal is multiplexed into the business datum of each logic channel and header overhead and/or schedule information and strengthens in the media access control protocol data unit.
Second set comprise be mapped to first set in the corresponding MAC-d of highest priority logical channel stream (specialized media access control stream) logic channel and with the logic channel of multiplexing other MAC-d stream of MAC-d stream, wherein first to gather be the logical channel set that transmission demand is arranged that meets the TTI transport-type.
If user terminal does not initiatively trigger reporting of schedule information in step S602; Behind completing steps S606; If the filler in the enhancing media access control protocol data unit that finally obtains is more than or equal to 23 bits, user terminal will be come in up-to-date schedule information is multiplexing.
In addition, schedule information can be sent in the enhancing media access control protocol data unit of scheduling type, also can in the enhancing media access control protocol data unit of non-scheduling type, send.
The data distributing method of schedule information provided by the invention is applied in the transformat selection and data allocation process (being called for short E-TFC selects) of UE, is that example is introduced with the TD-SCDMA system below.
Fig. 7 is the sketch map according to the data allocation process of the embodiment of the invention; As shown in Figure 7; When UE need trigger schedule information; Satisfy (MAC-es/e header overhead+data load length+schedule information length)≤k, and when UE need not trigger schedule information, satisfy (MAC-es/e header overhead+data load length)≤k.
Concrete data load distribution method specifically comprises the steps:
One, confirm available load length, for the situation of UE active transmission schedule information, available load length≤(k-schedule information length); For the situation that does not need the active transmission schedule information, available load length≤k;
Two, each logical message among the pair set B, handle as follows successively by the priority of logical channels order: two (1), take out business datum, (business datum length+MAC-es, MAC-e the header overhead)≤available load length of taking-up; And two (2), upgrade " available load length ", make it deduct the above-mentioned bit number of using; And
Three, the business datum of each logic channel of UE and header overhead and/or schedule information are multiplexed among the MAC-e PDU.
In step 1, UE triggers schedule information under following situation: the timer expiry of the reporting scheduling information of high-rise configuration.
In step 2 (1), concerning any logic channel, if its minimum data length can't satisfy the requirement of inequality, this logical message can't provide data so, will not comprise the business datum of this logic channel in the MAC-e PDU data of this transmission.If all logic channels in the set B all can't transmit data; UE will regain set A; New set A is the new set that former set A is removed set B, if new set A is not an empty set, UE will reselect transport block length at the beginning from process; If A is an empty set, UE will only send schedule information.
In step 3, the data division of the MAC-e PDU that finally obtains comprises following three kinds of situation: have only business datum, have only schedule information, existing business datum has schedule information again.
Fig. 8 is the flow chart of " E-TFC selects flow process " that comprises the data allocations flow process of Fig. 7.As shown in Figure 8, mainly comprise following four processes:
S802 utilizes existing enhanced uplink transformat selection algorithm, confirms set B, wherein, includes the highest priority logical channel of transmission demand, and other logic channel that can be multiplexing with said highest priority logical channel;
S804, UE confirm the maximum transmitted block length k that authorization resources allows;
Whether according to needs initiatively trigger schedule information and come the distribute data load for S806, UE; And
S808, UE confirms transport block length, and confirms to make the modulation system of transmitted power minimum.
In S802, specifically may further comprise the steps:
UE confirms that at first current TTI is used for scheduled transmission, also is non-scheduled transmission;
UE confirms to meet the logical channel set A that transmission demand is arranged of TTI transport-type (scheduling or non-scheduling);
From set A, confirm highest priority logical channel X, the MAC-d stream that logic channel X is corresponding is Y; And
Confirm set B, it is a sub-set of set A, in set B, comprises the logic channel that is mapped to MAC-d stream Y, and the logic channel that can flow other multiplexing MAC-d stream of Y with MAC-d.
In S804, specifically may further comprise the steps:
Produce transport block length set C1 and C2; Wherein corresponding to the 16QAM modulation system, each transport block length in C1 and C2 need satisfy C1 corresponding to QPSK modulation system, C2: should drop at the transmission code rate on the current authorization resources between the maximum, minimum code rate of high-rise appointment;
Confirm subset D 1 and the D2 of C1 and C2 respectively, make that the desired transmitting power of transport block length among D1, the D2 is less than or equal to authorization power, the calculating of transmitting power is P E-PUCH=Pe-base+L+ β e+K, wherein, P E-PUCHBe the E-PUCH channel transmitting power, Pe-base is the power closed loop amount of UE storage; L is the circuit loss value that UE measures; β e is the power excursion that current selected transport block length, code channel resource and modulation system obtain; And K is MAC-e PDU power excursion (power excursion of the MAC-d stream at highest priority logical channel place, the i.e. power excursion of MAC-d stream Y); And
From D1 and D2, confirm the maximum transport block length of supporting.
Should be appreciated that the concrete steps of S806 are identical with Fig. 7, be divided into two kinds of situation and carry out the distribution of data load.
In addition, in S808, specifically may further comprise the steps:
UE is according to the MAC-e PDU length (being designated as S) that finally obtains; From the transport block length form that system provides with in the transport block set that this time interval resource conforms to, find the immediate transport block length value L more than or equal to S, corresponding call number is designated as E-TFCIL;
If L only is present among the D1, select the QPSK modulation system so; If L only is present among the D2, select the 16QAM modulation system so, and if L is present among D1 and the D2 simultaneously, select the less modulation system of power requirement so; And
If (L-S) more than or equal to schedule information length, and do not comprise schedule information among the current MAC-e PDU, then UE advances among the MAC-ePDU up-to-date schedule information is multiplexing.
So just accomplished at the transformat of UE and selected and data allocation process.
Fig. 9 is the block diagram according to the data distribution device 900 of enhanced uplink of the present invention.As shown in Figure 9, this device comprises: schedule information trigger element 902, be positioned on the user terminal, and be used to judge whether that needs trigger reporting of schedule information; Confirm unit 904; Be used for triggering under the situation about reporting of schedule information at needs, then user terminal is reserved the bit of schedule information, and confirms available load length; Make available load length satisfy first condition; And under the situation about reporting that need not trigger schedule information, then user terminal is confirmed available load length, makes available load length satisfy second condition; And allocation units 906, be used for carrying out data load and distribute according to available load length.
Wherein, first condition is: available load length is less than or equal to bit poor of maximum packet that authorization resources supports and schedule information.Second condition is: available load length is less than or equal to the maximum packet that authorization resources is supported.
In addition; Allocation units 906 comprise: updating block; Be used for each logical message for second set; Take out business datum successively by each priority of logical channels order, make the business datum of being taken out and header overhead length be less than or equal to available load length, and available load length is updated to the length of being left that deducts after the business datum of being taken out; And Multiplexing Unit, be used for the business datum of each logic channel and header overhead and/or schedule information be multiplexed into and strengthen media access control protocol data unit.
Second set comprise be mapped to first set in the corresponding MAC-d of highest priority logical channel stream logic channel and with the logic channel of multiplexing other MAC-d stream of MAC-d stream, wherein first set is the logical channel set that transmission demand is arranged that meets the TTI transport-type.
Schedule information trigger element 902 is based on schedule information trigger mechanism of the present invention, and schedule information is sent in the enhancing media access control protocol data unit of the enhancing media access control protocol data unit of scheduling type or non-scheduling type.
Figure 10 is the flow chart of the triggering method of enhanced uplink schedule information according to an aspect of the present invention.
The triggering method of this enhanced uplink schedule information comprises following processing:
S1002; When user terminal has authorization resources; If the logic channel buffer data is multiplexed into the filling bit that strengthens behind the media access control protocol data unit can hold schedule information the time, user terminal will send schedule information in said enhancing media access control protocol data unit; And
S1004, high level are that user terminal configuration schedules information triggers timer T, and being used for user terminal has the situation when authorizing; User terminal restarts timer T when on authorization resources, sending new schedule information, and after timer T is overtime, user terminal will initiatively trigger the transmission of schedule information.
Need to prove, and do not require the sequencing of the time that certainly exists between S1002 and the S1004.
Among the above-mentioned S1004, the process that user terminal is restarted timer comprises: if timer T is activated, then the user terminal said timer T that at first resets and started restarts timer T then; If timer T is not activated, then user terminal will start timer T.
Above-mentioned S1002 and S1004 are fitted to each other, when user terminal incidentally during schedule information, will reset and restart timer T through S1002 at every turn.
Above-mentioned S1002 and S1004 have comprised the trigger mechanism that schedule information under the authorization conditions is arranged:
If I. strengthen media access control protocol data unit enough filling bits are arranged, user terminal will send schedule information, promptly once there being slack resources incidentally to send schedule information;
If II. in the time T of high level configuration, do not send schedule information, user terminal will initiatively trigger the transmission of schedule information.Timer T is used to avoid do not have reporting of scheduling information (SI) for a long time, guarantees that schedule information satisfies certain real-time requirement.
Figure 11 is the flow chart of the triggering method of enhanced uplink schedule information according to a further aspect in the invention.
This method comprises following processing: S1102, and high level is that user terminal configuration schedules information triggers timer T, is used for the triggering that said user terminal has the schedule information under the authorization resources situation; S1104 can hold schedule information if the logic channel buffer data is multiplexed into the filling bit that strengthens behind the media access control protocol data unit, and then said user terminal will send schedule information in said enhancing media access control protocol data unit; And S1106, said user terminal restarts said timer T when on said authorization resources, sending new schedule information, and after said timer T is overtime, said user terminal will initiatively trigger the transmission of schedule information.
In above-mentioned triggering method, the process that said user terminal restarts timer comprises: if said timer T is activated, the said timer T that then said user terminal at first resets and started restarts said timer T then; If said timer T is not activated, then said user terminal will start said timer T.
Thereby; Through the present invention, make the trigger mechanism of schedule information be more suitable for system, and UE can pay the utmost attention to the transmission of schedule information constantly at the reporting of scheduling information (SI) of system requirements in the TDD of the resource upper limit; Solved the defective of original system; Simultaneously owing to allow UE can on non-scheduling resource, send schedule information, for the transmission of schedule information provides the efficient resource guarantee, in addition; Because schedule information has played important reference role to the scheduling of Node B, thereby has improved system call efficient and usage factor of system resource.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (5)

1. the triggering method of an enhanced uplink schedule information is characterized in that, may further comprise the steps:
High level is that user terminal configuration schedules information triggers timer T, is used for the triggering that said user terminal has the schedule information under the authorization resources situation;
If the filling bit that the logic channel buffer data is multiplexed into behind the enhancing media access control protocol data unit can hold schedule information, then said user terminal will send schedule information in said enhancing media access control protocol data unit; And
Said user terminal restarts said timer T when on said authorization resources, sending new schedule information, and after said timer T is overtime, said user terminal will initiatively trigger the transmission of schedule information.
2. triggering method according to claim 1; It is characterized in that; The process that said user terminal restarts timer comprises: if said timer T is activated, the said timer T that then said user terminal at first resets and started restarts said timer T then; If said timer T is not activated, then said user terminal will start said timer T.
3. the data distribution device of an enhanced uplink, be used for according to whether needs trigger schedule information on offer the distribute data load, it is characterized in that, comprising:
The schedule information trigger element; Be positioned on the user terminal, be used to judge whether initiatively to trigger reporting of said schedule information, wherein; Said schedule information trigger element adopts triggering method according to claim 1 or claim 2, decides and triggers reporting of said schedule information;
Confirm the unit; Be used for triggering under the situation about reporting of said schedule information at needs; Then said user terminal is reserved the bit of said schedule information; And confirm available load length, make said available load length be less than or equal to bit poor of maximum packet that authorization resources supports and said schedule information, and under the situation about reporting that need not trigger said schedule information; Then said user terminal is confirmed said available load length, makes said available load length be less than or equal to the maximum packet that authorization resources is supported; And
Allocation units are used for carrying out data load according to said available load length and distribute.
4. data distribution device according to claim 3 is characterized in that, said allocation units comprise:
Updating block; Be used for each logical message for second set; Take out business datum successively by each priority of logical channels order; Make the business datum taken out and header overhead length be less than or equal to said available load length, and said available load length is updated to the length of being left that deducts after the business datum of being taken out, wherein; Said second set comprise be mapped to first set in the corresponding MAC-d of highest priority logical channel stream logic channel and with the logic channel of multiplexing other MAC-d stream of said MAC-d stream, wherein said first set is the logical channel set that transmission demand is arranged that meets the TTI transport-type; And
Multiplexing Unit is used for the business datum of said each logic channel and said header overhead and/or said schedule information be multiplexed into and strengthens media access control protocol data unit.
5. according to claim 3 or 4 described data distribution devices, it is characterized in that said schedule information is sent in the enhancing media access control protocol data unit of the enhancing media access control protocol data unit of scheduling type or non-scheduling type.
CN2007100969903A 2007-04-26 2007-04-26 Triggering and data distribution method and apparatus for reinforced uplink scheduling information Expired - Fee Related CN101296480B (en)

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PCT/CN2008/070799 WO2008131683A1 (en) 2007-04-26 2008-04-25 Triggering and data distribution method of dispatch information transmission in enhanced uplink, and the equipment thereof
KR20097024330A KR101124365B1 (en) 2007-04-26 2008-04-25 Triggering and data distribution method of dispatch information transmission in enhanced uplink, and the equipment thereof
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