CN1747596A - The signal transmission method of combination - Google Patents
The signal transmission method of combination Download PDFInfo
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- CN1747596A CN1747596A CN 200410074367 CN200410074367A CN1747596A CN 1747596 A CN1747596 A CN 1747596A CN 200410074367 CN200410074367 CN 200410074367 CN 200410074367 A CN200410074367 A CN 200410074367A CN 1747596 A CN1747596 A CN 1747596A
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Abstract
A kind of signal transmission method of combination comprises step: determine minimum scheduling interval; Divide the uplink and downlink control channel; Up signaling is combined, utilized the ascending control channel transmission; Downlink signaling is combined, utilized the down control channel transmission.The present invention combines various up signalings, utilizes an ascending control channel transmission.Because each up signaling has different transmission intercals, the different signaling contents of transmission constantly are several various combinations of up signaling.Equally, various downlink signalings are combined, utilized a down control channel transmission.Because each downlink signaling has different transmission intercals, the different signaling contents of transmission constantly are several various combinations of downlink signaling.This signaling transmission mechanism can farthest be saved the code source of system under the lighter situation of uplink and downlink signaling burden.Can both make full use of channel resource when simultaneously, the invention enables the different signaling content of transmission.
Description
Technical field
The present invention relates to upstream data service, particularly up channel strengthens the signal transmission method of (being called for short EUCH).
Background technology
It is that (The 3 for third generation partnership project that special uplink channel strengthens (hereinafter to be referred as EUDCH)
RdGeneration Partnership Project is hereinafter to be referred as 3GPP) propose in the version 6 and carrying out a standardized research project.The purpose of EUDCH is uplink transmission resource is effectively managed and to plan by wireless network, improves the up-link capacity of system, and makes it to be suitable for the transmission of sudden stronger data service.By improving the performance of uplink dedicated transmission channel, improve the coverage rate and the throughput of sub-district, improve uplink speed, reduce uplink delay.For time division multiplex system (be called for short TDD), not final determine up enhancing to as if shared channel or dedicated channel.The corresponding name of this research project is called up channel enhancing (hereinafter to be referred as EUCH) in the TDD system.
The relevant technical documentation of existing 3G (Third Generation) Moblie TDD system is not also worked out the signaling transmission mechanism of EUCH.Convention in the past is with reference to method, mechanism among the WCDMA (Wide-Band Code Division MultipleAccess), in conjunction with the characteristics of TDD system self, work out the signaling transmission mechanism of 3.84 million high spreading rate TDD (being called for short HCR-TDD) system and 1.28 million low spreading rate TDD (being called for short LCR-TDD) systems.The scheduling (scheduling) of mixed automatic repeat request (being called for short HARQ) and base station (Node-B) control is two key technologies among the EUDCH/EUCH.Defined the content of physical layer (layer 1 the is called for short L1) signaling that is used for scheduling and HARQ in the technical documentation that the EUDCH of WCDMA system is correlated with, enumerate the variety of way that the transmission of uplink and downlink signaling may be adopted, but do not provided concrete transmission method and mechanism.For the WCDMA system, a kind of signaling transmission mechanism that adopts of advising is: utilize two transmission channels, two channel code are transmitted up signaling." schedule information " (being called for short SI), gone up transmission at schedule information channel (being called for short SICH), and Transmission Time Interval (being called for short TTI) is 10ms.Utilize up enhancing Dedicated Control Channel (being called for short E-DCCH) to send " transformat and resource indication " (being called for short TFRI) and relevant " new data indication " (the abbreviation NDI) of HARQ, TTI is 2ms.
Because some characteristics of TDD system, make the signaling mechanism that suggestion is adopted among the WCDMA be unsuitable for the TDD system.Reason is as follows:
1) if adopts the method that once proposed among the WCDMA, the subscriber equipment of each up enhancing (being called for short UE) utilizes two channel code to transmit up signaling, also need extra channel resource to be used for the transmission of downlink signaling simultaneously, the signaling transmission has taken too many channel resource, and strict limited TDD system (maximum 16 code channels of each time slot) is worthless for the uplink and downlink code source.
2) TTI of EUCH business does not determine yet in the TDD system.For the LCR-TDD system, 5ms and 10ms are two possible selections, and 10ms TTI may select in the HCR-TDD system.Longer TTI will reduce the performance gain of HARQ and Scheduling introducing.Possible selection is 2ms and 10ms for the WCDMA system.Even TDD system and WCDMA adopt 10ms TTI, for the TDD system, uplink signalings there is no need to adopt 2 kinds of different TTI length.
3) in the TDD system, there is not soft handover.Therefore some signaling transmission problems of introducing owing to soft handover among the WCDMA need not to consider when the signaling transmission mechanism of design TDD.
4) be different from WCDMA,, in the version of Rel4, do not have Dedicated Physical Control Channel (being called for short DPCCH) at the Rel99 of TDD system.Transformat combination indication (being called for short TFCI) is transmitted (being called for short DPDCH) with data on Dedicated Physical Data Channel.When designing the uplink and downlink signaling transmission mechanism of TDD EUCH, need to consider the transmission method of TFCI.
Present situation is that the uplink and downlink signaling transmission mechanism of the EUCH of TDD system business is not also worked out.But because the TDD system is different from the characteristic of WCDMA physical layer, the method for the existing suggestion of WCDMA is unsuitable for the TDD system.
Summary of the invention
The signal transmission method that the purpose of this invention is to provide a kind of combination.
For achieving the above object, a kind of signal transmission method of combination comprises step:
Determine minimum scheduling interval;
Divide the uplink and downlink control channel;
Up signaling is combined, utilized the ascending control channel transmission;
Downlink signaling is combined, utilized the down control channel transmission.
The present invention combines various up signalings, utilizes an ascending control channel transmission.Because each up signaling has different transmission intercals, the different signaling contents of transmission constantly are several various combinations of up signaling.Equally, various downlink signalings are combined, utilized a down control channel transmission.Because each downlink signaling has different transmission intercals, the different signaling contents of transmission constantly are several various combinations of downlink signaling.This signaling transmission mechanism can farthest be saved the code source of system under the lighter situation of uplink and downlink signaling burden.Can both make full use of channel resource when simultaneously, the invention enables the different signaling content of transmission.
Description of drawings
Fig. 1 be the LCR-TDD system call at interval with the relation of Traffic Channel TTI, wherein,
101 Node-B N subframes
102 Node-B N+1 subframes
103 UE are corresponding to the N subframe of Node-B
104 UE are corresponding to the N+1 subframe of Node-B
The 0th time slot of 105 Node-B N subframes
The 0th time slot of 106 UE N subframes
Fig. 2 is two kinds of forms of the up signaling of EUCH, wherein,
The up signaling format 1 of 201 EUCH comprises SI, H
OBAnd E-TFI
The up signaling format 2 of 202 EUCH comprises H
OBAnd E-TFI
Fig. 3 is two kinds of forms of EUCH downlink signaling, wherein,
301 EUCH downlink signaling forms 1 comprise SA and ACK/NAK
302 EUCH downlink signaling forms 2 comprise ACK/NAK
Fig. 4 introduces the signaling format indication information, wherein,
401 signaling formats 1
402 signaling formats 2
Fig. 5 utilizes specific fields indication signaling form, wherein,
501 downlink signaling forms 1 comprise SA and ACK/NAK
502 downlink signaling forms 2 comprise ACK/NAK
Fig. 6 is that combination of transmitted mechanism is used for the (TTI of LCR-TDD system
Ser=5ms, TTI
UCtrl=TTI
DCtrl=5ms) (EUCH ascending control channel with EUCH Traffic Channel at identical time slot), wherein,
The data that 601 EUCH Traffic Channel HARQ processes 1 transmit
602 EUCH upstream control signalings comprise SI, H
OBAnd E-TFI
603 EUCH descending control signalings comprise ACK/NAK
The data that 604 EUCH Traffic Channel HARQ processes 2 transmit
605 EUCH upstream control signalings comprise H
OBAnd E-TFI
606 EUCH descending control signalings comprise SA and ACK/NAK
Fig. 7 is that combination of transmitted mechanism is used for the (TTI of LCR-TDD system
Ser=10ms, TTI
UCtrl=TTI
DCtrl=10ms) (EUCH ascending control channel and EUCH Traffic Channel are at different time-gap), wherein,
The data that 701 EUCH Traffic Channel HARQ processes 1 transmit
702 EUCH upstream control signalings comprise SI, H
OBAnd E-TFI
703 EUCH descending control signalings comprise ACK/NAK
The data that 704 EUCH Traffic Channel HARQ processes 2 transmit
705 EUCH upstream control signalings comprise H
OBAnd E-TFI
706 EUCH descending control signalings comprise SA and ACK/NAK
Fig. 8 is that combination of transmitted mechanism is used for the (TTI of HCR-TDD system
Ser=10ms, TTI
UCtrl=TTI
DCtrl=10ms) (EUCH ascending control channel with EUCH Traffic Channel at different time slots), wherein,
The data that 801 EUCH Traffic Channel HARQ processes 1 transmit
802 EUCH upstream control signalings comprise SI, H
OBAnd E-TFI
803 EUCH descending control signalings comprise SA and ACK/NAK
The data that 804 EUCH Traffic Channel HARQ processes 2 transmit
805 EUCH upstream control signalings comprise H
OBAnd E-TFI
806 EUCH descending control signalings comprise ACK/NAK
Embodiment
The present invention is directed to the upstream data service of wireless communication system, proposed a kind of combined signalling transmission mechanism.And, provide two kinds of methods at this signaling transmission mechanism, make can make full use of channel resource when transmitting different uplink and downlink signaling contents.
Definite method of the definition of scheduling interval and minimum scheduling interval
The present invention to the scheduling interval that relates to (with I
SchExpression) provided a clearly definition.Scheduling interval is the important parameter that each SA comprises, and it has indicated length effective time of this SA.Originate in UE the effective time of SA and begin moment of sending with the speed of this SA assignment, continue an I
SchThe back stops.Scheduling interval is variable, and it depends on the speed of UE buffering area new data arrival and the scheduling decision that SI made that Node-B sends according to a plurality of UE.Because UE can only (be called for short TTI at up enhancing Traffic Channel TTI
Ser) the zero hour change transmission rate, so scheduling interval is TTI
SerIntegral multiple.For the TDD system, schedule information (being called for short SI) and scheduling assignment (being called for short SA) send at the time slot of appointment, have a minimum scheduling interval, and it should satisfy: supposition UE is at first TTI of minimum scheduling interval
SerThe interior SI that sends, then UE can receive the SA that base station (being called for short Node-B) sends in minimum scheduling interval, and before minimum scheduling interval finishes, finish chnnel coding, sequence of operations such as multiplexing, when minimum scheduling interval finishes, begin to send with the speed of new reception SA institute assignment.The present invention has provided the method for definite minimum scheduling interval.Minimum scheduling interval and TTI
Ser, SI transmitting time, SA transmitting time and UE receive the processing time required behind the SA relation as shown in Equation (1):
Wherein, I
Sch_minBe minimum scheduling interval; T
SAReceive the time of SA for UE; T
SI_TTIThe zero-time of TTI of living in when sending SI for UE; I
UEPFor UE receives the processing time required behind the SA (UE needs to carry out chnnel coding and sequence of operations such as multiplexing according to the speed that SA arranged) at interval; TTI
SerBe the EUCH traffic channel transmission time interval:
For on round operation, [1.02]=2 for example.
Can see that from formula (1) minimum scheduling interval depends on TTI to a great extent
SerFor the TDD system, the TTI that may choose
SerLength is 5ms (LCR-TDD) or 10ms (LCR-TDD or HCR-TDD).The present invention has analyzed TDD system, different TTI
SerThe scheduling interval of length.
Figure 1 shows that the LCR-TDD system, suppose its TTI
SerBe 5ms, EUCH uplink and downlink control channel TTI (is called for short TTI
UCtrl, TTI
DCtrl) length is 5ms, the EUCH ascending control channel of UE k is assigned at TS1, and down control channel is assigned at TS4.UE k sends SI at the TS1 of subframe N, considers following reason, and the TS4 that Node-B is difficult in subframe N sends SA:
1) Node-B needs the SI of other UE to carry out scheduling decision.The SI of other UE may be in identical or different time slot with the SI of UE K.
2) Node-B needs the processing time to carry out scheduling decision.(in HSDPA, the processing time of Node-B scheduling is 2.33 ~ 2.8ms).
Therefore, UE receives SA as far back as the TS4 of subframe N+1.If UE can be before subframe N+1 finishes, finish required chnnel coding, operation such as multiplexed, at next TTI
Ser, the speed with the SA assignment when promptly subframe N+2 begins sends, and the minimum scheduling interval of this moment is 10ms.Otherwise UE will the speed with the SA assignment send when subframe N+3 begins, and scheduling interval is 15ms.According to above-mentioned analysis, for the LCR-TDD system, if adopt 5msTTI to scheduling interval
Ser, then scheduling interval is n * 5ms, n=2, and 3,4 ... (minimum scheduling interval is 10ms).Adopting uses the same method can analyze, if the LCR-TDD system adopts 10ms TTI
SerTTI
UCtrl=TTI
DCtrl=10ms, then scheduling interval is n * 10ms, n=2,3,4 ...For the HCR-TDD system, only may adopt 10ms TTI
Ser, TTI
UCtrlAnd TTI
DCtrl, scheduling interval is n * 10ms, n=1, and 2,3 ... (minimum scheduling interval is 10ms).
The division of uplink and downlink Dedicated Control Channel
The present invention is used for the transmission of uplink and downlink signaling for the control channel of the UE assignment special use of each up enhancing.Take a code channel of uplink and downlink time slot respectively.Wherein, the dedicated uplink control channel can be divided in the identical or different time slot of EUCH Traffic Channel in.TTI
UCtrlAnd TTI
DCtrlWith TTI
SerIsometric.
Up signaling transmission means
For supporting Scheduling and HARQ simultaneously, the out-of-band signalling that up signaling comprises SI, mixed automatic repeat request (is called for short H
OB) and transformat indication (being called for short E-TFI).For reducing the influence of E-TFI transmission, do not adopt Rel99, the existing scheme that E-TFI is sent with data among the Rel4 to transfer of data; For reducing the system resource that up signaling transmission takies, do not adopt two code channels of usefulness of advising in the relevant motion of WCDMA, two transmission channels 8 to transmit SI, E-TFI and H respectively simultaneously
OBScheme.The scheme that the present invention provides is with E-TFI, SI, H
OBBundle, utilize the ascending control channel of above-mentioned distribution, at a TTI
UCtrlThe interior transmission.
Up signaling content
Node-B need be known the transformat combination (being called for short TFC) of the current use of UE, the correctly data on demultiplexing, decoding and the transmission EUCH Traffic Channel according to E-TFI.Because it all is with TTI that UE sends operations such as data multiplexing, chnnel coding
SerFor unit carries out, so E-TFI needs each TTI
SerTransmission primaries.
Node-B is according to H
OBKnow the out-of-band signalling of current HARQ process, as: the ID of HARQ process, increase redundancy versions (being called for short IR version), NDI are used for correctly soft merging, decoding.Because the duration of each HARQ process is a TTI
SerUE adopts ﹠amp such as N Deng; Stop the HARQ mode and (be called for short N S﹠amp; W HARQ) sends data continuously, each TTI
SerUE need send the H of corresponding HARQ process
OB
Based on the characteristics of TDD system, UE sends SI at the time slot of appointment.Simultaneously, for saving up ROT resource, the present invention adopts Event triggered cycle report manner to send SI, if promptly the buffering area of UE has new data to arrive, UE will be at designated period (TTI
UCtrl) particular moment (being the specified time slot of up Dedicated Control Channel) send SI, the report buffering area takies situation and available horsepower.Therefore, TTI is depended in the transmission of SI at interval
UCtrlLength and the arrival situation of UE buffering area new data.The minimum time interval of SI is a TTI
UCtrlAt some TTI
UCtrl, because buffering area does not have newly arrived data, UE does not send SI.
Based on above-mentioned to SI, H
OBSending analysis at interval with E-TFI, have two kinds of forms in the up as can be known signaling, is respectively SI, H
OBWith two kinds of various combinations of E-TFI, as shown in Figure 2.
The downlink signaling transmission
For supporting Scheduling and HARQ simultaneously, downlink signaling comprises SA and ACK/NAK.The scheme that the present invention provides is with SA and ACK/NAK binding, utilizes the downlink dedicated control channel of above-mentioned distribution, at a TTI
DCtrlIn send together.
The downlink signaling content
Though Node-B can each TTI
DCtrlSend one time SA, but under the normal condition, Node-B should carry out scheduling decision according to the SI of UE transmission, produces SA, so the arrival situation of SI is also depended in the transmission of SA at interval.For more effectively managing up ROT resource, Node-B should send new SA to UE before a last SA lost efficacy simultaneously, and left the UE time enough for to finish chnnel coding, sequence of operations such as multiplexing according to the speed of new SA institute assignment.
Suppose that UE adopts N S﹠amp; W HARQ mode sends data continuously, each TTI
SerNode-B need send ACK/NAK at the different HARQ processes of each UE.
Based on above-mentioned SA and ACK/NAK are sent analysis at interval, downlink signaling has two kinds of forms as can be known, is respectively two kinds of various combinations of SA and ACK/NAK, as shown in Figure 3.
Make full use of the method for uplink control channel resource
Up signaling comprises SI, H
OBAnd E-TFI.Wherein, SI comprises buffer state and the dump power information of UE, is about 8bits; H
OBComprise HARQ process ID and increase redundancy version information, be about 4bits; E-TFI comprises the effective TFC information of current UE, is about 4bits.When the signaling content of uplink is form 2 among Fig. 2, the invention provides following method and make full use of the shared channel bit of former cause SI, as shown in Figure 4, introduce 1 bit signalling form indication information position in addition, what make that the recipient can distinguish current transmission is the signaling of the sort of form.
As shown in Figure 4, the signaling format indicating bit carries out chnnel coding with up signaling.FI=0 indicates current signaling content to comprise SI, H
OBAnd E-TFI; FI=1 indicates current up signaling content to comprise H
OBAnd E-TFI, the channel bit that this moment, UE can utilize original SI to take is strengthened H
OBCoding with E-TFI.For example: can be to H
OBRepeated encoding improves H
OBThe reliability of transmission.
Make full use of the method for down control channel resources
Downlink signaling comprises SA, ACK/NAK.SA comprises information such as time slot that Node-B is the UE assignment, channel code, modulation system, TFCS pointer, scheduling interval, is about 17bits.ACK/NAK comprises the ack/nack response message of HARQ process, is 1bit.When the signaling content of descending transmission is form 2 among Fig. 3, the method that can adopt step 7 to provide is distinguished different forms by increasing an information bit, also can adopt following method provided by the invention to make full use of the shared channel bit of former cause SA: as shown in Figure 5, some state is no in the SA information, for example scheduling interval can not be 0, can utilize this field to come the content of indicating downlink signaling, if this field is complete zero then indicates current signaling content to comprise ACK/NAK.The channel bit that this moment, UE can utilize original SA to take is strengthened the coding to ACK/NAK.
Embodiment
At first with LCR-TDD system, TTI
Ser=5ms, up Dedicated Control Channel of EUCH and EUCH traffic channel assignments are example in the situation of same time slot, as shown in Figure 6.Suppose N=2 S﹠amp; W HARQ can guarantee the continuous transmission of UE data.The every 5ms of UE sends a H
OBAnd E-TFI, corresponding to different HARQ processes.TTI is depended in the transmission of SI at interval
UCtrlArrival situation with UE buffering area new data.Up Dedicated Control Channel of EUCH and EUCH traffic channel assignments are at time slot 1, and EUCH downlink dedicated control channel is distributed in time slot 4.Because the UE buffering area has new data to arrive, the up signaling 602 of EUCH that sends at TTI N comprises SI, H
OBAnd E-TFI, H wherein
OBWith E-TFI is the relevant signaling that EUCH Traffic Channel HARQ process 1 transmits data 601.The EUCH descending control signaling 603 that sends at time slot 4 comprises the ACK/NAK information of HARQ process 1 among the corresponding TTI N-2; At TTI N+1, the UE buffering area does not have new data to arrive, and the up signaling 606 of the EUCH of transmission comprises H
OBAnd E-TFI, be the relevant signaling that EUCH Traffic Channel HARQ process 2 transmits data 604.The EUCH downlink signaling 606 that time slot 4 sends comprises the SA of SI in corresponding 602, and the scheduling interval of its assignment is 4 * TTI
Ser=20ms, and the ACK/NAK information of HARQ process 2 among the corresponding TTI N-1; At TTI N+2, UE begin with TTI N+1 606 in the rate sending data of SA assignment.At TTI N+4, the buffering area of UE has new data to arrive, and the up signaling 602 of the EUCH of transmission comprises SI, H
OBAnd E-TFI; SI in the up signaling 602 of EUCH that the corresponding TTI N+4 of SA that the EUCH downlink signaling 606 that TTI N+5 sends comprises sends, UE next TTI according to TTI N+5 606 in the rate sending data of SA assignment.
Again with LCR-TDD system, TTI
Ser=10ms, up Dedicated Control Channel of EUCH and EUCH traffic channel assignments are example in the situation of different time-gap, as shown in Figure 7.Suppose N=2 S﹠amp; W HARQ can guarantee the continuous transmission of UE data.The every 10ms of Node-B sends a H
OBAnd E-TFI, corresponding to different HARQ processes.TTI is depended in the transmission of SI at interval
UCtrlArrival situation with UE buffering area new data.At time slot 1, the up Dedicated Control Channel of EUCH is distributed in time slot 2 with the EUCH traffic channel assignments, and the EUCH downlink dedicated channels is at time slot 4.In the N subframe, the UE buffering area has new data to arrive, and the up signaling 702 of EUCH that sends at TTI M comprises SI, H
OBAnd E-TFI, wherein H
OBWith E-TFI is EUCH Traffic Channel HARQ process 1 sends data 701 at TTI M relevant signaling.The EUCH downlink signaling 703 that sends at TTI M comprises the ACK/NAK information of HARQ process 1 among the TTI M-2.The up signaling 705 of EUCH that sends at TTI M+1 comprises H
OBAnd E-TFI, be EUCH Traffic Channel HARQ process 2 sends data 704 at TTI M+1 relevant signaling.The EUCH downlink signaling 706 that TTI M+1 sends comprise corresponding TTI M 702 in the SA of SI, the scheduling interval of its assignment is 4 * TTI
Ser=40ms, and the ACK/NAK information of corresponding TTI M-1 kind HARQ process 2.At TTI M+2, UE begin with TTI M+1 706 in the rate sending data of SA assignment.At TTI M+3, the buffering area of UE has new data to arrive, and the up signaling 702 of the EUCH of transmission comprises SI, H
OBAnd E-TFI; UE will receive corresponding SA at TTI M+4, begin to send with the speed of the up-to-date SA institute assignment that receives at TTI M+5.
At last with HCR-TDD system, TTI
Ser=10ms, up Dedicated Control Channel of EUCH and EUCH traffic channel assignments are example in the situation of different time-gap, as shown in Figure 8.Suppose N=2 S﹠amp; W HARQ can guarantee the continuous transmission of UE data.EUCH also divides channel allocation at time slot 1, and the up Dedicated Control Channel of EUCH is distributed in time slot 2, and EUCH downlink dedicated control channel is distributed in time slot 12.At TTIM, the UE buffering area has new data to arrive, and the up signaling 802 of EUCH that UE sends comprises SI, H
OBAnd E-TFI.H
OBWith E-TFI is EUCH Traffic Channel HARQ process 1 sends data 801 at TTI M relevant signaling.The EUCH downlink signaling 803 that sends at TTI M comprises the SA of SI among the corresponding TTI M 802, and its scheduling interval is 3 * TTI
Ser=30ms, and the ACK/NAK information of HARQ process 1 among the corresponding TTI M-2.At TTIM+1, UE begin with TTI M 803 in the speed of SA assignment send.At TTI M+1, because the buffering area of UE has new data to arrive, UE needs higher speed, and the up signaling 802 of the EUCH of transmission comprises SI, H
OBAnd E-TFI, wherein H
OBWith E-TFI is EUCH Traffic Channel HARQ process 2 sends data 804 at TTI M+1 relevant signaling.The EUCH downlink signaling 803 that TTI M+1 sends comprise corresponding TTIM+1 802 in the SA of SI, the scheduling interval of its assignment is 4 * TTI
Ser=40ms, and the ACK/NAK information of HARQ process 2 among the corresponding TTIM-1.At TTI M+2, UE begin with TTI M+1 803 in the speed of SA assignment send.Because the buffering area of UE does not have new data to arrive, the up signaling 805 of the EUCH of transmission comprises H
OBAnd E-TFI, be the relevant signaling that EUCH Traffic Channel HARQ process 1 transmits data 801.The downlink signaling 806 that sends comprises the ACK/NAK information of HARQ process 1 among the corresponding TTI M.At TTIM+3, the buffering area of UE does not have new data to arrive, and the up signaling 805 of the EUCH of transmission comprises H
OBAnd E-TFI, the downlink signaling 806 of transmission comprises the ACK/NAK information of HARQ process 2 among the corresponding TTI M+1.
The present invention is directed to the upstream data service of wireless communication system, proposed a kind of signal transmission method of combination, and provided concrete implementation method and rule.The present invention has following effect:
1) provides the clearly definition at interval of up enhancing service dispatching, provided definite method of minimum scheduling interval.
2) with the out-of-band signalling of schedule information (hereinafter to be referred as SI), mixed automatic repeat request (hereinafter to be referred as H
OB) and up enhancing transformat indication (hereinafter to be referred as E-TFI) combine, utilize a up Dedicated Control Channel, a code channel transmission, can save the uplink code channel resource.
3) with the ack/nack response message (hereinafter to be referred as ACK/NAK) of scheduling assignment (hereinafter to be referred as SA) and mixed automatic repeat request together, utilize a downlink dedicated control channel, a code channel transmission, can save descending code channel resource.
4) with E-TFI and H
OBWith SI together, by the transmission of up Dedicated Control Channel, rather than pass number with data by up enhancing Traffic Channel, reduced the influence of E-TFI to transfer of data.
5) the present invention adopts Event triggered cycle report manner to send SI, SI and H
OBHave different transmissions at interval with E-TFI, the up signaling of transmission is SI, H
OBTwo kinds of various combinations with SI.Introduce the information format indicating bit, the recipient distinguishes the information content by the information format indicating bit.Make UE can both make full use of channel resource when sending the up signaling of different content.This method equally also can be used for the transmission of downlink signaling
6) transmission of SI and the length of down control channel Transmission Time Interval are depended in the transmission of SA at interval.SA has different transmissions at interval with ACK/NAK, and the downlink signaling content is two kinds of various combinations of SA and ACK/NAK.By the special representation indication signaling content of downlink signaling special field, make Node-B can both make full use of channel resource when sending the up signaling of different content.This method can be used for uplink signalings equally.
Claims (10)
1. the signal transmission method of a combination comprises step:
Determine minimum scheduling interval;
Divide the uplink and downlink control channel;
Up signaling is combined, utilized the ascending control channel transmission;
Downlink signaling is combined, utilized the down control channel transmission.
2. by the described method of claim 1, it is characterized in that minimum scheduling interval is definite by following formula:
Wherein, I
Sch_minBe minimum scheduling interval; T
SAReceive the time of SA for UE; T
SI_TTIThe zero-time of TTI of living in when sending SI for UE; I
UEPFor UE receives the processing time required behind the SA (UE needs to carry out chnnel coding and sequence of operations such as multiplexing according to the speed that SA arranged) at interval; TTI
SerBe the EUCH traffic channel transmission time interval;
For on round operation.
3. by the described method of claim 1, it is characterized in that described division uplink and downlink control channel comprises:
The Transmission Time Interval of Traffic Channel equates with the tti length of the Transmission Time Interval of ascending control channel and down control channel.
4. by claim 1 or 3 described methods, it is characterized in that ascending control channel be dispensed on the identical or different time slot of reverse link traffic channel in.
5. by the described method of claim 1, it is characterized in that transmitting constantly the up signaling of various combination in difference.
6. by the described method of claim 1, it is characterized in that transmitting constantly the downlink signaling of various combination in difference.
7. by the described method of claim 1, it is characterized in that also comprising: introduce the information indicating bit of at least 1 bit, base station or subscriber equipment are by information indicating bit distinguishing signaling content.
8. by the described method of claim 7, it is characterized in that: subscriber equipment or base station are by the special representation distinguishing signaling content of special field in the signaling.
9. by the described method of claim 1, it is characterized in that the Transmission Time Interval according to ascending control channel, the Transmission Time Interval of down control channel and the Transmission Time Interval of Traffic Channel determine scheduling interval and minimum scheduling interval.
10. by the described method of claim 9, it is characterized in that scheduling interval is variable, is the integral multiple in the traffic channel transmission time interval.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009100608A1 (en) * | 2008-02-05 | 2009-08-20 | Zte Corporation | A physical uplink control signal transmitting method for time division duplex system |
| CN101584142A (en) * | 2007-01-09 | 2009-11-18 | 松下电器产业株式会社 | Configuration of control channels in a mobile communication system |
| CN101414870B (en) * | 2007-10-15 | 2012-10-24 | 电信科学技术研究院 | Descending control signaling, transmission method and apparatus for reference symbol |
| CN102781113A (en) * | 2006-05-03 | 2012-11-14 | 韩国电子通信研究院 | Method for transmitting up link control signal in mobile communication system |
| CN101615951B (en) * | 2008-06-25 | 2013-01-16 | 中兴通讯股份有限公司 | Method and device for timed sending of uplink authorization signaling |
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| CN102781113A (en) * | 2006-05-03 | 2012-11-14 | 韩国电子通信研究院 | Method for transmitting up link control signal in mobile communication system |
| CN101438513B (en) * | 2006-05-03 | 2013-06-12 | 韩国电子通信研究院 | Method for transmitting uplink control signal in mobile communication system |
| CN102781113B (en) * | 2006-05-03 | 2016-02-17 | 韩国电子通信研究院 | Transmit and receive the method for the response being used for Stochastic accessing |
| CN101584142A (en) * | 2007-01-09 | 2009-11-18 | 松下电器产业株式会社 | Configuration of control channels in a mobile communication system |
| CN101584142B (en) * | 2007-01-09 | 2013-08-14 | 松下电器产业株式会社 | Configuration of control channels in mobile communication system |
| CN101414870B (en) * | 2007-10-15 | 2012-10-24 | 电信科学技术研究院 | Descending control signaling, transmission method and apparatus for reference symbol |
| WO2009100608A1 (en) * | 2008-02-05 | 2009-08-20 | Zte Corporation | A physical uplink control signal transmitting method for time division duplex system |
| US8503337B2 (en) | 2008-02-05 | 2013-08-06 | Zte Corporation | Physical uplink control signal transmitting method for time division duplex system |
| CN101615951B (en) * | 2008-06-25 | 2013-01-16 | 中兴通讯股份有限公司 | Method and device for timed sending of uplink authorization signaling |
| CN103812627A (en) * | 2012-11-12 | 2014-05-21 | 上海贝尔股份有限公司 | Method, device and base station for sending scheduling information |
| CN103812627B (en) * | 2012-11-12 | 2016-12-21 | 上海贝尔股份有限公司 | A kind of for sending the method for schedule information, device and base station |
| CN106850435A (en) * | 2016-12-16 | 2017-06-13 | 北京格林伟迪科技股份有限公司 | A kind of cross-domain end-to-end label exchange route setting method and system |
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