CN1747594A - Signal transmission method alternately - Google Patents
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- CN1747594A CN1747594A CN 200410074365 CN200410074365A CN1747594A CN 1747594 A CN1747594 A CN 1747594A CN 200410074365 CN200410074365 CN 200410074365 CN 200410074365 A CN200410074365 A CN 200410074365A CN 1747594 A CN1747594 A CN 1747594A
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Abstract
A kind of signal transmission method comprises step: determine minimum scheduling interval; Divide the uplink and downlink control channel; According to various uplink signalings at interval, up signaling is divided into several sections, different parts alternately sent in the different time; Up signaling content is distinguished by the parameter of a time correlation in the base station; According to the Transmission Time Interval of various downlink signalings, divide the downlink signaling branch into several sections, different parts alternately sent in the different time; Subscriber equipment is distinguished the downlink signaling content by the parameter of a time correlation.The present invention has utilized different signalings to have the characteristics of different transmission intercals, and signaling is divided into several sections, utilizes a transmission channel, a code channel, in the different piece of different time-interleaved transmission signalings, when saving channel resource, applicable to the heavier situation of signaling burden.The recipient judges the content that receives signaling by the parameter of a time correlation, need not to increase extra signaling consumption.
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 to propose in third generation partnership project (hereinafter to be referred as the 3GPP) version 6 and carrying out a standardized research project that special uplink channel strengthens.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 multiplexing (be called for short TDD) system, not final determine up enhancing to as if shared channel or dedicated channel, the corresponding name of this research project is called up channel and strengthens (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 the method among the WCDMA, mechanism, in conjunction with the characteristics of TDD system self, works out corresponding signaling transmission mechanism.The scheduling (being called for short Scheduling) of mixed automatic repeat request (being called for short HARQ) and base stations control is two key technologies of EUDCH/EUCH.Define 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, enumerated the variety of way that the transmission of uplink and downlink signaling may be adopted.But do not provide concrete transmission method and mechanism.For the WCDMA system, a kind of signaling transmission mechanism of suggestion is: utilize two channel code, two up signalings of transmission channel." 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 physical layer, make the signaling mechanism that suggestion is adopted among the WCDMA be unsuitable for the TDD system.Reason is as follows:
1) the uplink and downlink code source strictness of TDD system is limited, maximum 16 code channels of each time slot.If adopt the method for once advising among the WCDMA, divide two channel code for the subscriber equipment (being called for short UE) of each up enhancing and be used to transmit up signaling, in addition, also need divide the transmission that channel resource is used for downlink signaling, the signaling transmission has taken too much channel resource.
2) TTI of the EUCH of TDD system Traffic Channel is (hereinafter to be referred as TTI
Ser) do not determine yet.5ms and 10ms are two possible selections.Longer TTI will reduce the performance gain of HARQ and Scheduling introducing.The maximum spreading factor of considering TDD is 16, and Turbo code efficiency and the highest attainable uplink speed are selected the TTI of 10ms for use
SerBe very likely.The transmission of TDD system uplink signaling need not to adopt two 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 system.
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 joint instructions (being called for short TFCI) are transmitted (being called for short DPDCH) with data on Dedicated Physical Data Channel.When designing the uplink and downlink signaling transmission mechanism of EUCH, need to consider the transmission method of TFCI.
Present situation is that the transmission mechanism of the uplink and downlink signaling 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 alternate transmission method that the purpose of this invention is to provide a kind of uplink and downlink signaling.
For achieving the above object, a kind of signal transmission method comprises step:
Determine minimum scheduling interval;
Divide the uplink and downlink control channel;
According to various uplink signalings at interval, up signaling is divided into several sections, different parts sent in the different time;
Up signaling content is distinguished by the parameter of a time correlation in the base station;
According to the Transmission Time Interval of various downlink signalings, divide the downlink signaling branch into several sections, different parts sent in the different time;
Subscriber equipment is distinguished the downlink signaling content by the parameter of a time correlation.
The present invention has utilized different signalings to have the characteristics of different transmission intercals, and signaling is divided into several sections, utilizes a transmission channel, a code channel, in the different piece of different time-interleaved transmission signalings, when saving channel resource, applicable to the heavier situation of signaling burden.The recipient judges the content that receives signaling by the parameter of a time correlation, need not to increase extra signaling consumption.
Description of drawings
Fig. 1 is the professional minimum scheduling interval (TTI of the EUCH of LCR-TDD system
Ser=10ms, TTI
UCtrl=TTI
DCtrl=5ms), wherein,
101 Node-B N subframes;
The 0th time slot of 102 Node-B N subframes;
103 UE N subframes;
The 0th time slot of 104 UE N subframes.
Fig. 2 is the professional minimum scheduling interval (TTI of the EUCH of LCR-TDD system
Ser=10ms, TTI
UCtrl=TTI
DCtrl=10ms), wherein,
201 Node-B N subframes;
The 0th time slot of 202 Node-B N subframes;
203 UE N subframes;
The 0th time slot of 204 UE N subframes.
Fig. 3 is a uplink signaling transmission method, wherein,
301 schedule information SI send in the 1st subframe (UE N subframe) of TTI M;
302 H
OBBe bundled in the 2nd subframe (UE N+1 subframe) of TTI M with E-TFI and send.
Fig. 4 is a downlink signaling transmission method, wherein,
401 ACK/NAK send in the 1st subframe (Node-B N subframe) of TTI M;
402 scheduling assignment SA send in the 2nd subframe (Node-B N+1 subframe) of TTI M.
Fig. 5 is that alternate transmission mechanism is used for the LCR-TDD system, and EUCH ascending control channel and EUCH traffic channel assignments are at identical time slot (TTI
Ser=10ms, TTI
UCtrl=TTI
DCtrl=5ms), and wherein, the data that 501 EUCH Traffic Channel HARQ processes 1 transmit;
502 EUCH upstream control signalings comprise SI (if the UE buffering area has new data to arrive, then at corresponding TTI
SerThe 1st subframe that is comprised sends);
503 EUCH descending control signalings comprise ACK/NAK (at each TTI
SerThe 1st subframe that is comprised sends);
504 EUCH upstream control signalings comprise H
OBAnd E-TFI is (at each TTI
SerThe 2nd subframe that is comprised sends);
505 EUCH descending control signalings comprise SA (corresponding SI place TTI
SerThe 2nd subframe that is comprised sends);
The data that 506 EUCH Traffic Channel HARQ processes 2 transmit.
Fig. 6 is that alternate transmission mechanism is used for the LCR-TDD system, and EUCH ascending control channel and EUCH traffic channel assignments are at different time-gap (TTI
Ser=10ms, TTI
UCtrl=TTI
DCtrl=5ms), wherein,
The data that 601 EUCH Traffic Channel HARQ processes 1 transmit;
602 EUCH upstream control signalings comprise SI (if the UE buffering area has new data to arrive, then at corresponding TTI
SerThe 1st subframe that is comprised sends);
603 EUCH descending control signalings comprise ACK/NAK (at each TTI
SerFirst subframe that is comprised sends);
604 EUCH upstream control signalings comprise H
OBAnd E-TFI is (at each TTI
SerThe 2nd subframe that is comprised sends);
605 EUCH descending control signalings comprise SA (corresponding SI place TTI
SerThe 2nd subframe that is comprised sends);
The data that 606 EUCH Traffic Channel HARQ processes 2 transmit.
Embodiment
One. the definition of scheduling interval and the method for determining
The present invention to the scheduling interval that relates to (with I
SchExpression) provided a clearly definition.Scheduling interval is the important parameter that scheduling assignment (be called for short SA) comprises, and it has indicated this SA length of effective time.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 scheduling decision that the speed of UE buffering area new data arrival and the schedule information (being called for short SI) that the base station sends according to a plurality of UE are made.Because UE can only be at TTI
SerThe zero hour change transmission rate, therefore, scheduling interval is TTI
SerIntegral multiple.For the TDD system, SI and SA send at the time slot of appointment, there is a minimum scheduling interval, it should satisfy: UE can send SI in minimum scheduling interval, and receive the SA that base station (hereinafter to be referred as Node-B) sends, finish chnnel coding, sequence of operations such as multiplexing, when minimum scheduling interval finishes, begin to send with the speed of new reception SA assignment.The present invention has further provided the method for definite minimum scheduling interval.Minimum scheduling interval and TTI
Ser, SI transmitting time, SA transmitting time and UE receive between 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 indicated speed of SA) at interval; TTI
SerBe the EUCH traffic channel transmission time interval;
For on round operation, [1.02]=2 for example.
Minimum scheduling interval depends on TTI to a great extent
SerIn addition, scheduling interval depends on that also the TTI of the control channel that transmits EUCH uplink and downlink signaling is (hereinafter to be referred as TTI
UCtrl, TTI
DCtrl) length.Because TTI
UCtrl, TTI
DCtrlDirectly determined T
SI_TTIAnd T
SAValue.
Fig. 1 has analyzed low spreading rate time division multiplexing (being called for short LCR-TDD) system, TTI
Ser=10ms, TTI
UCtrl=TTI
DCtrl=5ms, the minimum scheduling interval of EUCH business.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, because Node-B needs the processing time (among the HSDPA, the processing time of Node-B scheduling is 2.33 ~ 2.8ms) and carries out scheduling decision from the SI (may be in identical or different time slot with the SI of UE K) of other UE, so the TS4 that Node-B is difficult in subframe N sends SA.UE receives SA as far back as the TS4 of subframe N+1.If UE can be before TTI M finishes, finish required chnnel coding, operation such as multiplexed, the speed with the SA assignment when TTI M+I begins sends, and the minimum scheduling interval of this moment is 1 * TTI
Ser=10ms.
Fig. 2 has analyzed LCR-TDD system, TTI
Ser=10ms, TTI
UCtrl=TTI
DCtrl=10ms, the minimum scheduling interval of EUCH business.UE K sends SI at subframe N, the subframe N+1 of TTI M, receives SA as far back as subframe N+2, the subframe N+3 of TTIM+1.Finish required chnnel coding, operation such as multiplexed before TTI M+1 finishes, the speed with the SA assignment when TTI M+2 begins sends, and the minimum scheduling interval of this moment is 2 * TTI
Ser=20ms.
By above-mentioned analysis to minimum scheduling interval as can be known, for the LCR-TDD system, adopt 10msTTI
SerIf, TTI
UCtel=TTI
DCtrl=5ms, then scheduling interval is n * 10ms, n=1,2,3 ... if, TTI
UCtrl=TTI
DCtrl=10ms, then scheduling interval is n * 10ms, n=2,3,4 ...
Two. the division of uplink and downlink Dedicated Control Channel
The present invention is used for the transmission of uplink and downlink signaling for the UE assignment uplink and downlink control channel of each up enhancing.The uplink and downlink control channel takies a code channel of uplink and downlink time slot, TTI respectively
UCtrl=TTI
DCtrl＜TTI
SerWherein, ascending control channel can be divided in the identical or different time slot of EUCH Traffic Channel in.
Three. up signaling content and corresponding transmission intercal
For supporting HARQ and Scheduling simultaneously, 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.Suppose that UE adopts N Ting ﹠amp; (be called for short N S﹠amp Deng the HARQ mode; W HARQ) sends data continuously, each TTI of UE
SerNeed send H for corresponding HARQ process
OBNode-B is with TTI
SerBe unit, carry out operations such as demultiplexing, decoding according to the information butt joint receipts data that E-TFI provides.Each TTI of UE
SerNeed to send E-TFI.The present invention adopts Event triggered cycle report manner to send SI, if 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.TTI is depended in the transmission of SI at interval
UCtrlLength and the arrival situation of UE buffering area new data.
Four. uplink signaling transmission method
The ascending control channel of the present invention's design adopts less than TTI
SerTTI
UCtrlThe advantage of this mode is: Node-B sends the TTI of SI at UE
UCtrlReceive SI during end, can begin to carry out scheduling decision, need not TTI by the time
SerFinish.This will help shortening minimum scheduling interval to Node-B plenty of time treatment S I more.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, two transmission channels of advising in the relevant motion of WCDMA to transmit SI respectively, E-TFI and H simultaneously
OBScheme.The present invention provides following up signaling transmission plan: the transmission interval (referring to step 3) according to up signaling content, up signaling is divided into several sections, and different parts is alternate transmission in the different time.This signaling transmission plan can be used for the heavier situation of up signaling burden.
For example for LCR-TDD system, TTI
UCtrlThe situation of=5ms is divided into two parts with up signaling, and SI is placed correspondence " TTI
SerFirst subframe " TTI
UCtrlInterior (buffering area of UE has new data to arrive, and needs the new speed of application) is with H
OBPlace correspondence " each TTI with E-TFI
SerSecond subframe " TTI
UCtrlIn, alternately send.
Five. downlink signaling content and corresponding transmission intercal
For supporting Scheduling and HARQ simultaneously, downlink signaling comprises SA and 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.Suppose that UE adopts N S﹠amp; W HARQ mode sends data continuously, and Node-B need be at the different HARQ processes of each UE, each TTI
SerSend one time ACK/NAK.Node-B carries out scheduling decision according to the SI that UE sends, and produces SA, and arrival situation and the TTI of SI depended in the transmission of SA at interval
DCtrlSimultaneously, in order more effectively to manage up ROT resource, Node-B should send new SA to UE before a last SA lost efficacy, 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.
Six. the transmission method of downlink signaling
The downlink dedicated control channel of the present invention's design adopts less than TTI
SerTTI
DCtrlThe advantage of this mode is: UE sends the TTI of SA at Node-B
DCtrlReceive SA during end, can begin to carry out chnnel coding, sequence of operations such as multiplexing, need not TTI by the time according to the speed of SA institute assignment
SerFinish.This will help shortening minimum scheduling interval.The present invention provides following downlink signaling transmission plan: the transmission interval (referring to step 5) according to the downlink signaling content, downlink signaling is divided into several sections, and different parts is alternate transmission in the different time.This signaling transmission plan can be used for the heavier situation of downlink signaling burden.
For example for LCR-TDD system, TTI
DCtrlThe situation of=5ms is divided into two parts with downlink signaling, and ACK/NAK is placed correspondence " each TTI
SerFirst subframe " TTI
DCtrlIn, SA is placed correspondence " TTI
SerSecond subframe " TTI
DCtrlIn, alternately send.
Seven. judge the content of uplink and downlink signaling according to the parameter of time correlation
The present invention does not adopt extra information indication bit to indicate the content of uplink and downlink signaling, because this need introduce extra signaling burden.But the characteristic of abundant TDD physical layer provides following scheme to distinguish the content of uplink and downlink signaling: the content of judging the uplink and downlink signaling that sends by the parameter (for example: System Frame Number in the TDD system and subframe numbers) of the existing time correlation of system.
For example, for LCR-TDD system, TTI
Ser=10ms, TTI
UCtrol=TTI
DCtrlThe situation of=5ms, a TTI at this moment
SerCorresponding frame, System Frame Number (being called for short SFN) and subframe numbers (being called for short SFN ') are started from scratch and are added up.Up signaling is divided into two parts, and SI is at corresponding " TTI
SerFirst subframe " TTI
UCtrlThe interior transmission, the SFN ' of Node-B reception this moment signaling satisfies SFN ' mod 2=0.H
OBWith E-TFI at corresponding " each TTI
SerSecond subframe " TTI
UCtrlThe interior transmission, the SFN ' of Node-B reception this moment signaling satisfies SFN ' mod 2=1.Downlink signaling is divided into two parts, and ACK/NAK is at corresponding " each TTI
SerFirst subframe " TTI
DCtrlThe interior transmission, the SFN ' of UE reception this moment signaling satisfies SFN ' mod2=0.SA is at corresponding " TTI
SerSecond subframe " TTI
DCtrlSend, the SFN ' of UE reception this moment signaling satisfies SFN ' mod 2=1.
Embodiment
At first with LCR-TDD system, TTI
Ser=10ms, TTI
UCtrl=TTI
DCtrl=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 5.Suppose N=2 S﹠amp; W HARQ can guarantee the continuous transmission of UE data.UE is at each TTI
SerThe 2nd subframe that is comprised sends H
OBAnd E-TFI, corresponding to different HARQ processes.The arrival situation of UE buffering area new data is depended in the transmission of SI at interval, at corresponding TTI
SerThe 1st subframe that is comprised sends.Node-B is at each TTI
SerThe 1st subframe that is comprised sends ACK/NAK, corresponding to different HARQ processes.The arrival interval of SI is depended in the transmission of SA at interval, at corresponding TTI
SerThe 2nd subframe that is comprised sends.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 502 of EUCH that sends at the subframe N of TTI M comprises SI; The EUCH downlink signaling 503 that sends comprises the ACK/NAK information of HARQ process 1 among the corresponding TTI M-2.The up signaling 504 of EUCH that sends at the subframe N+1 of TTI M comprises H
OBAnd E-TFI, be the relevant information that EUCH Traffic Channel HARQ process 1 transmits data 501; The EUCH downlink signaling 505 that sends comprises the SA of SI among the corresponding subframe N, and the scheduling interval of its assignment is 4 * TTI
Ser=40ms.At TTI M+1, TTI M+2, the UE buffering area does not have new data to arrive, at N+2, and the N+4 subframe, UE does not send the up signaling SI of EUCH.At TTI M+3, the buffering area of UE has new data to arrive, at N+3, and the N+5 subframe, Node-B does not send EUCH downlink signaling SA.Buffering area at TTI M+3UE has new data to arrive, and the up signaling 502 of EUCH that the N+6 subframe sends comprises SI, and the capable signaling 503 of the EUCHF of transmission comprises the ACK/NAK information of HARQ process 2 among the corresponding TTI M+1.The up signaling 504 of EUCH that the N+7 subframe sends comprises H
OBAnd E-TFI, be the relevant information that EUCH Traffic Channel HARQ process 2 transmits data 506, the EUCH downlink signaling 505 of transmission comprises the SA in corresponding 502.UE TTI M+4 begin with TTI N+7 505 in the rate sending data of SA assignment.
Again with LCR-TDD system, TTI
Ser=10ms, TTI
UCtrl=TTI
DCtrl=5ms, up Dedicated Control Channel of EUCH and EUCH traffic channel assignments are example in the situation of different time-gap, as shown in Figure 6.At time slot 1, the up Dedicated Control Channel of EUCH is distributed in time slot 2 with the EUCH traffic channel assignments, and EUCH downlink dedicated control channel is distributed in time slot 4.Because the buffering area of UE has new data to arrive, the up signaling 602 of EUCH that sends at the subframe N of TTI M comprises SI; The downlink signaling 603 that sends comprises the ACK/NAK information of HARQ process 1 among the corresponding TTIM-2.The up signaling 604 of EUCH that sends at the subframe N+1 of TTI M comprises H
OBAnd E-TFI, be the relevant information that EUCH Traffic Channel HARQ process 1 transmits data 601; The EUCH downlink signaling 605 that sends comprises the SA of SI among the corresponding subframe N, and the scheduling interval of its assignment is 2 * TTI
Ser=20ms.At TTI M+1, UE begins the rate sending data with SA assignment among the TTI M.Because the buffering area of UE does not have new data to arrive, in the N+2 subframe, UE does not send the up signaling SI of EUCH; At subframe N+3, UE does not send EUCH downlink signaling SA.The up signaling 604 of EUCH that sends at subframe N+3UE comprises H
OBAnd E-TFI, be the relevant information that EUCH Traffic Channel HARQ process 2 transmits data 606.Buffering area at TTI M+2UE has new data to arrive, and the up signaling 602 of EUCH that sends at subframe N+4 comprises SI; The EUCH downlink signaling 603 that sends comprises the ACK/NAK information of HARQ process 1 among the corresponding TTI M.The up signaling 604 of EUCH that sends at subframe N+5 comprises H
OBAnd E-TFI, be the relevant information that EUCH Traffic Channel HARQ process 1 transmits data 601; The EUCH downlink signaling 605 that sends comprises the SA of SI among the corresponding subframe N+4, and the scheduling interval of its assignment is 3 * TTI
Ser=30ms.At TTI M+3, UE begins the rate sending data with TTI M+2 kind SA assignment.
The present invention is directed to the upstream data service of wireless communication system, proposed a kind of signal transmission method that replaces, and provided concrete implementation method and rule.The present invention has following effect:
1) provided the clearly definition of scheduling interval.Provided definite method of minimum scheduling interval.
2) the uplink and downlink Dedicated Control Channel respectively takies a code channel, can save the uplink and downlink code channel resource.
3) Transmission Time Interval of up Dedicated Control Channel less than the Transmission Time Interval of up enhancing Traffic Channel (hereinafter to be referred as TTI
DCtrl), base station (hereinafter to be referred as Node-B) is at TTI
UCtrlReceive schedule information (hereinafter to be referred as SI) during end, can begin scheduling decision, Node-B has more that plenty of time carries out scheduling decision, has shortened minimum scheduling interval.
4) TTI is depended in the minimum interval of NOde-B transmission scheduling assignment (hereinafter to be referred as SA)
DCtrl, TTI
DCtrl＜TTI
Ser, having shortened minimum scheduling interval, Node-B has more that plenty of time carries out scheduling decision,
5) make full use of the characteristic of TDD system physical layer, at corresponding " TTI
SerFirst frame or subframe " TTI
UCtrlThe interior SI that sends separately.Can be used for the heavier situation of SI burden, and existing system is not done change.
6) because scheduling interval is TTI
SerIntegral multiple, SI is at corresponding " TTI
SerFirst frame or subframe " TTI
UCtrlIn send, give Node-B more plenty of time carry out scheduling decision, help to shorten scheduling interval.
7) based on the characteristic of TDD system physical layer, with the out-of-band signalling of mixed automatic repeat request (hereinafter to be referred as H
OB) and up enhancing transformat indication (hereinafter to be referred as E-TFI) combine, at corresponding " TTI
SerSecond frame or subframe " TTI
UCtrlThe interior transmission can be used for H
OBWith the heavier situation of E-TFI signaling burden, and reduced the influence of E-TFI transmission to transfer of data.
8) based on the characteristic of TDD system physical layer, at corresponding " TTI
SerSecond frame or subframe " TTI
DCtrlThe interior SA that sends separately.Can be used for the heavier situation of downlink signaling SA burden, and existing system is not done change.
9) because scheduling interval is TTI
SerIntegral multiple, SA is at corresponding " TTI
SerSecond frame or subframe " TTI
DCtrlIn send, give Node-B more plenty of time carry out scheduling decision, help shortening scheduling interval.
10) SI, H
OBAlternately send with E-TFI, Node-B is by parameter (for example: System Frame Number, subframe numbers) the distinguishing signaling content of a time correlation.Realize simply need not to introduce extra signaling, and existing system not being done change.
11) SA and ACK/NAK alternately send, and UE is by parameter (for example: System Frame Number, subframe numbers) the distinguishing signaling content of a time correlation.Realize simply need not to introduce extra signaling, and existing system not being done change.
Claims (8)
1. signal transmission method comprises step:
Determine minimum scheduling interval;
Divide the uplink and downlink control channel;
According to various uplink signalings at interval, up signaling is divided into several sections, different parts alternately sent in the different time;
Up signaling content is distinguished by the parameter of a time correlation in the base station;
Transmission Time Interval according to various downlink signalings is divided into several sections with downlink signaling, and different parts alternately sent in the different time;
Subscriber equipment is distinguished the downlink signaling content by the parameter of a time correlation.
2. by the described method of claim 1, it is characterized in that described definite minimum scheduling interval is calculated as follows:
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 at interval; TTI
SerBe the EUCH traffic channel transmission time interval;
For on round operation.
3. the described method of claim 1 is characterized in that also being included as each user and divides the uplink and downlink control channel.
4. by the described method of claim 1, it is characterized in that the Transmission Time Interval of ascending control channel equates with the Transmission Time Interval of down channel, and all less than the Transmission Time Interval of Traffic Channel.
5. by the described method of claim 1, it is characterized in that ascending control channel be dispensed on the identical or different time slot of Traffic Channel in.
6. by the described method of claim 1, it is characterized in that E-TFI, H
OBBe bundled in a TTI
UCtrlThe interior transmission, SI is at another TTIU
CtrlThe interior transmission.
7. by the described method of claim 1, it is characterized in that described scheduling interval is variable and be the integral multiple in the traffic channel transmission time interval.
8. by the described method of claim 1, the parameter that it is characterized in that described time correlation can be System Frame Number or subframe numbers.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008074263A1 (en) * | 2006-12-20 | 2008-06-26 | Huawei Technologies Co., Ltd. | Transmission method, system, transmitter, receiver and method fro realizing information transmission |
| CN101562845B (en) * | 2008-11-28 | 2011-04-06 | 华为技术有限公司 | Reserved resource release method, apparatus and base station device thereof |
| CN101682880B (en) * | 2007-03-20 | 2012-10-10 | 株式会社Ntt都科摩 | User device, base station device, and method in mobile communication system |
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| CN106301711A (en) * | 2007-10-23 | 2017-01-04 | 诺基亚技术有限公司 | The retransmission capabilities improved in semi-persistent transmits |
| US9794915B2 (en) | 2006-09-29 | 2017-10-17 | Lg Electronics Inc. | Method for allocating resources to uplink control channel |
| CN104113923B (en) * | 2006-09-29 | 2018-08-24 | Lg电子株式会社 | Method for allocating resources to uplink control channel |
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| US10624067B2 (en) | 2006-09-29 | 2020-04-14 | Lg Electronics Inc. | Method for allocating resources to uplink control channel |
| CN104113923B (en) * | 2006-09-29 | 2018-08-24 | Lg电子株式会社 | Method for allocating resources to uplink control channel |
| US8547925B2 (en) | 2006-12-20 | 2013-10-01 | Huawei Technologies Co., Ltd. | Transmission method, system, transmitter, receiver and method for realizing information transmission |
| WO2008074263A1 (en) * | 2006-12-20 | 2008-06-26 | Huawei Technologies Co., Ltd. | Transmission method, system, transmitter, receiver and method fro realizing information transmission |
| CN101682880B (en) * | 2007-03-20 | 2012-10-10 | 株式会社Ntt都科摩 | User device, base station device, and method in mobile communication system |
| CN102664723B (en) * | 2007-03-20 | 2015-09-09 | 株式会社Ntt都科摩 | User's set, base station apparatus, communication system and communication means |
| CN106301711A (en) * | 2007-10-23 | 2017-01-04 | 诺基亚技术有限公司 | The retransmission capabilities improved in semi-persistent transmits |
| CN106301711B (en) * | 2007-10-23 | 2019-09-13 | 诺基亚技术有限公司 | Method, apparatus and memory for communication |
| CN101562845B (en) * | 2008-11-28 | 2011-04-06 | 华为技术有限公司 | Reserved resource release method, apparatus and base station device thereof |
| US10159084B2 (en) | 2011-12-05 | 2018-12-18 | Huawei Technologies Co., Ltd. | Resource scheduling method and apparatus |
| US10736123B2 (en) | 2011-12-05 | 2020-08-04 | Huawei Technologies Co., Ltd. | Resource scheduling method and apparatus |
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