CN104753651B - A kind of P-CQI transmission methods and device for TTI bundled users - Google Patents
A kind of P-CQI transmission methods and device for TTI bundled users Download PDFInfo
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Abstract
The object of the present invention is to provide a kind of P CQI transmission method and apparatus for TTI bundled users.Wherein, the present invention by judge next P CQI informations transmission subframe whether with a TTI bundle transmission/retransmission collisions, when the two conflict, abandon the conflict TTI bundle transmission/re-transmission, to ensure to receive next P CQI informations.On the one hand scheme according to the present invention can solve the problem of that eNB may can not receive P CQI informations for a long time when opening TTI bindings in the prior art, so as to therefore influence downlink throughput；On the other hand, transmission/re-transmission is bundled by the TTI for simply failing to conflict with the transmission subframe of P CQI informations, can less influences the uplink throughput of TTI bundled users.
Description
Technical field
The present invention relates to the technologies that field of communication technology more particularly to a kind of P-CQI for TTI bundled users are transmitted.
Background technology
It is well known that TTI is bundled（Transmission Time Interval bundling, abbreviation TTI
Bundling, Transmission Time Interval binding）Be one kind by 3GPP（The3rd Generation Partnership Project,
Third generation partner program）The technology of introducing, to solve LTE（Long Term Evolution, Long Term Evolution）Uplink
Road budget problem and the scope of balanced uplink covering and downlink covering.In LTE FDD（Frequency
Division Duplex, frequency division duplex）In, TTI bindings are mainly contained in 4 continuous uplink TTI transmission subframes in a organized way
Transmit 4 HARQ in ground（Hybrid Automatic Repeat-reQuest, hybrid automatic repeat-request）Transmission/re-transmission.
When configuring TTI bindings, 4 on 4 continuous ms of 1 HARQ transmission=1 group continuously transmit.eNB
（Evolved Node B, evolved base station）In the end for the group that this 4 transmit in PHICH（Physical Hybrid-ARQ
Indicator Channel, physical mixed ARQ indicate channel）ACK/NACK is sent on channel（Confirmation/non-acknowledgement）Message.Root
According to the HARQ feedback sent on PHICH and according to the HARQ maximum transmission times for being arranged to this calling, previous
16ms after HARQ transmission starts（For TDD UL/DL configuration1（Time division duplex uplink/downlink is matched somebody with somebody
Put pattern 1）For 20ms）, UE（User equipment, user equipment）HARQ is opened to retransmit.
Fig. 1 shows an example of the lower 4 TTI bindings HARQ processes of frequency division duplex situation, wherein HARQ maximum transmitteds time
Number is 20.
As shown in Figure 1, wherein 0,4,8,12 sequence numbers for representing TTI subframes up to 80, the time interval of 1 TTI subframe are
1ms.The boxes of difference filling represent different TTI bindings respectively, and time of each TTI bindings is 4ms, 1st Tx represents HARQ
The first time transmission of process, the arrow of different lines are illustrated respectively in the HARQ re-transmissions of 16ms after previous HARQ transmission starts
Process.
Since HARQ maximum transmission times are 20, and 4 HARQ transmission/re-transmissions are included in 1 TTI binding, therefore,
As shown by solid arrow in Fig. 1, this time HARQ data bag maximum can be transmitted using 5 TTI bindings.
Fig. 2 shows the example of the lower 2 TTI bindings HARQ processes of 1 situation of time division duplex configuration mode, and wherein HARQ is maximum to be passed
Defeated number is 20.
As shown in Fig. 2, wherein 0,10,20,30 sequence numbers for representing TTI subframes up to 120, between the time of 1 TTI subframe
It is divided into 1ms.The boxes of difference filling represent different TTI bindings respectively, and time of each TTI bindings is 10ms, 1st Tx tables
Show the first time transmission of HARQ processes, the arrow of different lines is illustrated respectively in 20ms after previous HARQ transmission starts
HARQ retransmission processes.
Since HARQ maximum transmission times are 20, and 4 HARQ transmission/re-transmissions are included in 1 TTI binding, therefore,
As shown by solid arrow in Fig. 2, this time HARQ data bag maximum can be transmitted using 5 TTI bindings.
3GPP does not support there is P-CQI simultaneously（Period-Channel Quality Indicator, periodic channel quality
Instruction）TTI binding.In TS36.213 specifications, " if being arranged to TRUE simultaneously by the TTI bundle parameters that higher provides
And if UL-SCH in subframe bundling operation（Uplink Shared Channel, uplink shared channel）With one week
Phase CQI/PMI/RI（Channel Quality Indicator channel qualities instruction/precoding-matrix
Indicator pre-coding matrix instructions/rank indicator grades instruction）Report instance conflict, then UE will abandon the son
Cycle CQI/PMI/RI in frame is reported and must not be in the PUSCH of the subframe（Physical Uplink Shared
Channel, physical uplink link shared channel）Cycle CQI/PMI and/or grade instruction are multiplexed in transmission ".
Always conflict if transmitting and retransmitting this means TTI bindings with P-CQI subframes, P-CQI would be impossible to send out from UE
It send to eNB, that is, when UE opens TTI bindings, eNB may can not receive P-CQI for a long time.If it is well known that in long-time
There is no P-CQI to be sent to eNB, downlink throughput will be huge and rapidly reduce, and this is unacceptable.
If in all P-CQI subframes TTI is avoided to bundle（P-CQI is that periodically, the cycle is typically 20ms）,
TTI bindings will lose many chances to transmit data, this will also substantially reduce uplink throughput, especially for TDD feelings
Shape bundlees HARQ processes with less TTI, therefore this is also unacceptable.
The content of the invention
The object of the present invention is to provide a kind of P-CQI transmission methods and device for TTI bundled users.
According to an aspect of the invention, there is provided a kind of method that P-CQI for TTI bundled users is transmitted, the party
Method includes：
A worked as within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive TTI bundled users hair
During the P-CQI information sent, judge next P-CQI information transmission subframe whether with a TTI bundle transmission/retransmission collisions；
B abandons the TTI bindings transmission/re-transmission, to ensure to receive next P-CQI information when the two conflicts.
According to another aspect of the present invention, the device that a kind of P-CQI for TTI bundled users is transmitted is additionally provided,
The device includes：
Conflict judgment means, for when within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive
During the P-CQI information that one TTI bundled users are sent, judge whether the transmission subframe of next P-CQI information bundlees with a TTI and pass
Defeated/retransmission collisions；
Device is abandoned in transmission, for when the two conflicts, abandoning the TTI bindings transmission/re-transmission, to ensure to receive institute
State next P-CQI information.
Compared with prior art, the present invention is passed by judging whether the transmission subframe of next P-CQI information bundlees with a TTI
Defeated/retransmission collisions when the two conflicts, abandon TTI binding transmission/re-transmissions of the conflict, to ensure to receive next P-
CQI information.On the one hand scheme according to the present invention can be solved in the prior art when opening TTI bindings, when eNB may be long
Between the problem of can not receive P-CQI information, so as to which therefore downlink throughput will not be influenced；On the other hand, by simply failing
The TTI binding transmission/re-transmissions to conflict with the transmission subframe of P-CQI information can less influence the uplink of TTI bundled users
Link throughput.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is exemplarily illustrated the schematic diagram of the lower 4 TTI bindings HARQ processes of frequency division duplex situation；
Fig. 2 is exemplarily illustrated the schematic diagram of the lower 2 TTI bindings HARQ processes of 1 situation of time division duplex configuration mode；
Fig. 3 is exemplarily illustrated the solution schematic diagram that TTI bindings conflict with P-CQI under time division duplex situation；
Fig. 4 shows the method stream that a kind of P-CQI for TTI bundled users according to an embodiment of the invention is transmitted
Cheng Tu；
Fig. 5 is exemplarily illustrated the subframe schematic diagram that TTI is bundled under 1 situation of time division duplex configuration mode；
Fig. 6 shows the device that a kind of P-CQI for TTI bundled users in accordance with another embodiment of the present invention is transmitted
Schematic diagram.
The same or similar reference numeral represents the same or similar component in attached drawing.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The present invention provides a kind of schemes TTI to be avoided to bundle transmission loss, while ensure that UE remains to send P-CQI letters
Breath.Further, the present invention can be performed in the operation that eNB sides perform by the dispatching device being installed in eNB.As nothing is especially said
Bright, dispatching device herein is equal with eNB to be used.Wherein, the dispatching device specifically can be such as RRM（Radio Resource
Management, wireless resource management）Scheduler, RRM schedulers its can control TTI bundle scheduling and understanding know
The reception condition of P-CQI information, for example, upper P-CQI information how long before receive.
According to one embodiment of present invention, when within one section of cycle time or continuous multiple P-CQI transmission subframes not
When receiving the P-CQI information of TTI bundled users transmission, dispatching device will abandon what is conflicted with next P-CQI transmission subframe
One TTI bundlees transmission/re-transmission.
Refering to Fig. 3, under time division duplex situation, the cycle of P-CQI information is 20ms, and HARQ maximum transmission times are 8.
Wherein 0,10,20,30 until 120 represent the sequence number of TTI subframes, and the time interval of 1 TTI subframe is 1ms.Without tiltedly
The box of the different gray scales of line filling represents different TTI bindings respectively, and the box of oblique line filling indicates no TTI bindings, each
The time of TTI bindings for 10ms, 1st Tx represents the first time transmission of HARQ processes, and the arrow of different lines is represented previous
The HARQ retransmission processes of 20ms after HARQ transmission starts.VoIP（Voice over Internet Protocol, network electricity
Words）Represent TTI bindings transmission/re-transmission carrying is VoIP business, and P-CQI successfully represents that P-CQI information receives successfully, P-CQI
Failure represents mutually to conflict because transmitting with TTI bindings, P-CQI information reception failures.
After in first time P-CQI, information receives successfully, from sub-frame number 20 to the 60ms between sub-frame number 80 in, eNB
P-CQI information is not successfully received, according to HARQ maximum transmission times, eNB judges the HARQ that sub-frame number 70 to 80 is identified
Process needs the 2nd TTI binding transmission of progress, corresponding sub-frame number 90 to 100, and the TTI binding re-transmissions of the HARQ processes will
Conflict with the transmission subframe of next P-CQI information.
Fig. 4 is the method flow diagram according to one embodiment of the invention, and there is shown with the P-CQI for TTI bundled users
Transmission process.
As shown in figure 4, in step sl, when within one section of cycle time or continuous multiple P-CQI transmission subframes do not connect
Receive a TTI bundled users transmission P-CQI information when, eNB judge next P-CQI information transmission subframe whether with a TTI
Bundle transmission/retransmission collisions；In step s 2, when the two conflicts, eNB abandons TTI binding transmission/re-transmissions of the conflict, with
Ensure to receive next P-CQI information.
Specifically, in step sl, when within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive
To a TTI bundled users send P-CQI information when, eNB judge next P-CQI information transmission subframe whether with a TTI bundle
Tie up transmission/retransmission collisions.
Wherein, one section of cycle time can be customized any cycle time, such as 80/100/160ms or appoint
What other parameters；It can also be determined according to the cycle of actual P-CQI information.
Wherein, the number of continuous multiple P-CQI transmission subframes or customized any number, such as 1/2/
4 or any other values.
Unless otherwise instructed, mostly citing elaboration is carried out using cycle time as 80ms herein.
Here, eNB can bundle next P-CQI subframes with the judgement that conflicts of TTI binding transmission/re-transmissions according to TTI
Whether user has semi-continuous scheduling（Semi-persistent scheduling）It is carried out to distinguish.
TTI bundled users without semi-continuous scheduling
For the TTI bundled users of no semi-continuous scheduling, i.e. dynamic dispatching（dynamic scheduling）TTI binding
User, when within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive TTI bundled users transmission
During P-CQI information, eNB is according to the distance of the transmission subframe of next P-CQI information, TTI binding HARQ round-trip delays and HARQ
The number that TTI needed for maximum transmission times is bundled passes to determine whether the transmission subframe of next P-CQI information bundlees with a TTI
Defeated/retransmission collisions.
Further, for the TTI bundled users of no semi-continuous scheduling, eNB bundlees next P-CQI subframes and a TTI
The conflict judgement of transmission/re-transmission also further discriminates between TDD situations and FDD situations.
In a preferable example, refering to Fig. 5, according to TDD configuration modes 1, wherein 0,1,2,3 represent TTI up to 9
The sequence number of frame, the time interval of 1 TTI subframe is 1ms.D represents downlink subframe, and U represents uplink sub-frames, and S is represented
The downlink subframe and next subframe of instruction will be switched to uplink sub-frames.It is assumed that TTI subframes must be opened from subframe 2 or 7
Begin, RV0, RV2, RV3, RV1 represent 4 continuous sub-frame of uplink HARQ RV editions combined by TTI binding transmission/re-transmissions
This.UL mandates indicate that it is uplink grant subframe, and NACK indicates that it is non-acknowledgement message subframe.Wherein, from calculating from left to right,
The distance of uplink grant subframe and first RV0 subframe is 6, the distance of first RV1 subframe and first NACK subframe
Also it is 6, the distance of the NACK subframes and second RV0 subframe is 8, between the time of first RV0 subframe and first RV1 subframe
It is divided into 7ms.
Here, under TDD situations, when meeting the following conditions, eNB will determine the transmission subframe and one of next P-CQI information
TTI bundlees transmission/retransmission collisions.Specifically：
When the P-CQI information from user equipment is not received in 80ms：
1）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 20 remainder<7；
2）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/20 <HARQ maximum transmitteds time
The number that TTI needed for number is bundled.
Wherein, the distance of the transmission subframe of next P-CQI information can be determined according to the distance between sub-frame number.
The number that TTI needed for HARQ maximum transmission times is bundled is determined by HARQ maximum transmission times divided by 4；Wherein,
HARQ maximum transmission times are cell-level parameters, and 4 expression TTI bindings need to combine 4 continuous sub-frame of uplink.
20 be time division duplex TTI binding HARQ round-trip delays（Round-Trip time, abbreviation RTT time）, that is,
The user's equipment starts HARQ re-transmissions after a upper HARQ transmission starts 20ms.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 20 remainder can be used under determining
The specific location of one P-CQI information, referring still to Fig. 5, when the numerical value of the remainder is less than 7（First RV0 subframe and first RV1
The distance of subframe）When, next P-CQI subframes may bundle transmission/retransmission collisions with TTI.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 20 can be used for determining next P-CQI
The time range of subframe, when the quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, next P-CQI subframes
Transmission/retransmission collisions may be bundled with TTI.
When above-mentioned remainder is less than 7 and above-mentioned quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, eNB
The transmission subframe and a TTI that can determine next P-CQI information bundle transmission/retransmission collisions.
In another preferable example, under FDD situations, when meeting the following conditions, eNB will determine next P-CQI information
Transmission subframe and a TTI bundle transmission/retransmission collisions.Specifically：
When the P-CQI information from user equipment is not received in 80ms：
1）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 16 remainder<4；
2）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/16 <HARQ maximum transmitteds time
The number that TTI needed for number is bundled.
Wherein, the distance of the transmission subframe of next P-CQI information can be determined according to the distance between sub-frame number.
The number that TTI needed for HARQ maximum transmission times is bundled is determined by HARQ maximum transmission times divided by 4；Wherein,
HARQ maximum transmission times are cell-level parameters, and 4 expression TTI bindings need to combine 4 continuous sub-frame of uplink.
16 be frequency division duplex TTI binding HARQ round-trip delays（RTT time）, that is, the user's equipment k is in a upper HARQ
Transmission starts to start HARQ re-transmissions after 16ms.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 16 remainder can be used under determining
The position range of one P-CQI information, when the remainder numerical value be less than 4 when, next P-CQI subframes may with TTI bundle transmission/
Retransmission collisions.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 16 quotient can be used under determining
The time range of one P-CQI information, when the quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, next P-
CQI subframes may bundle transmission/retransmission collisions with TTI.
When above-mentioned remainder is less than 4 and above-mentioned quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, eNB
The transmission subframe and a TTI that can determine next P-CQI information bundle transmission/retransmission collisions.
TTI bundled users with semi-continuous scheduling
For the TTI bundled users with semi-continuous scheduling, when within one section of cycle time or continuous multiple P-CQI are passed
When defeated subframe does not receive the P-CQI information of TTI bundled users transmission, eNB is according to semi-continuous scheduling mandate（Semi-
Persistent scheduling grant, abbreviation SPS mandates）The subframe position and next of the TTI bindings of subframe instruction
The position of the transmission subframe of P-CQI information, come judge the transmission subframe of next P-CQI information whether with a TTI binding transmission/
Retransmission collisions.
Semi-continuous scheduling mode refers to that during the scheduled transmission of LTE eNB passes through PDCCH（Physical
Downlink Control Channel, physical downlink control channel）Indicate the current scheduling informations of UE, UE identifications are adjusted
Degree mode is enterprising in identical subframe position every the fixed cycle after semi-continuous scheduling, then to preserve current scheduling information
The transmission or reception of row business datum.
ENB is according to the position of the transmission subframe of P-CQI information, to determine the semi-continuous scheduling mandate of activation（active
SPS grant）The subframe position of the TTI bindings of subframe instruction is bundled with the TTI for ensuring the mandate instruction of activation semi-continuous scheduling
Subframe position does not conflict with the transmission subframe of P-CQI information.
Wherein, the SPS of activation authorizes subframe to refer to first semi-continuous scheduling mandate subframe, cannot be with P-CQI subframes
Conflict.It is fixed cycle and fixed position since SPS authorizes the subframe position of the TTI bindings of subframe instruction, and is conversing
Constant in the time burst out, the interval of such as most of VoIP bags is 20ms, therefore for each SPS is avoided to authorize subframe and P-CQI
Subframe conflict, eNB is according to the position of the transmission subframe of P-CQI information, to determine that the SPS of activation authorizes the TTI bundles of subframe instruction
The subframe position tied up authorizes the subframe position of the TTI bindings of subframe instruction not conflict with P-CQI to ensure to activate SPS.
Therefore, the subframe position and the biography of next P-CQI information that the TTI that eNB can authorize subframe to indicate according to SPS is bundled
The position of defeated subframe, to judge whether the transmission subframe of next P-CQI information bundlees transmission/retransmission collisions with a TTI.
In step s 2, when the transmission subframe of next P-CQI information is with TTI binding transmission/retransmission collisions, eNB is put
TTI binding transmission/re-transmissions are abandoned, to ensure to receive next P-CQI information.Here, eNB is avoided in current scheduling subframe
New TTI binding transmitting and schedulings are carried out, so as to carry out the chance of P-CQI transmission to user.
For example, cooperation retransmits and next P-CQI information refering to Fig. 3 when the TTI for the HARQ processes that 70 to 80 are identified is bundled
During conflict, eNB is forced the HARQ processes identified to 70 to 80 in a manner that user equipment returns to ACK message, to abandon
The TTI bindings of 70 to the 80 HARQ processes identified retransmit.
Here, the mode that eNB abandons TTI binding transmission/re-transmissions is including but not limited to 2 kinds following：
1）ENB forces the HARQ processes that TTI is bundled to return to ACK message to user equipment, and which is suitable for dynamic and adjusts
Degree and semi-continuous scheduling.
If a TTI binding HARQ transmission/re-transmission will conflict with the transmission subframe of next P-CQI information, no matter should
HARQ transmission/re-transmission whether successfully decoded, eNB returns to compulsory ACK message to TTI binding transmission/re-transmission, to ensure to receive
To next P-CQI information.
2）ENB does not dispatch Physical Uplink Shared Channel in the transmission subframe of next P-CQI information（PUSCH）Resource, should
Mode is only applicable to dynamic dispatching.
Fig. 6 is the schematic device according to one embodiment of the invention, and there is shown with the P-CQI for TTI bundled users
The dispatching device 10 of transmission.Dispatching device 10 is installed in base station equipment（eNB）In, dispatching device 10 includes conflict judgment means
11 and transmission abandon device 12.
As shown in fig. 6, when within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive TTI bundles
Tie up user transmission P-CQI information when, conflict judgment means 11 judge next P-CQI information transmission subframe whether with a TTI
Bundle transmission/retransmission collisions；When the two conflicts, TTI binding transmission/re-transmissions that device 12 abandons the conflict are abandoned in transmission, with
Ensure to receive next P-CQI information.
Specifically, when within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive TTI bindings and use
During the P-CQI information that family is sent, conflict judgment means 11 judge whether the transmission subframe of next P-CQI information bundlees with a TTI
Transmission/retransmission collisions.
Wherein, one section of cycle time can be customized any cycle time, such as 80/100/160ms or appoint
What other parameters；It can also be determined according to the cycle of actual P-CQI information.
Wherein, the number of continuous multiple P-CQI transmission subframes or customized any number, such as 1/2/
4 or any other values.
Unless otherwise instructed, mostly citing elaboration is carried out using cycle time as 80ms herein.
Here, conflict judgment means 11 conflict that judge can be with to next P-CQI subframes and TTI binding transmission/re-transmissions
Whether semi-continuous scheduling is had according to TTI bundled users（Semi-persistent scheduling）It is carried out to distinguish.
TTI bundled users without semi-continuous scheduling
For the TTI bundled users of no semi-continuous scheduling, i.e. dynamic dispatching（dynamic scheduling）TTI binding
User, when within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive TTI bundled users transmission
During P-CQI information, conflict judgment means 11 are round-trip according to the distance of the transmission subframe of next P-CQI information, TTI bindings HARQ
Needed for time delay and HARQ maximum transmission times TTI bundle number, come determine the transmission subframe of next P-CQI information whether with
One TTI bundlees transmission/retransmission collisions.
Further, for the TTI bundled users of no semi-continuous scheduling, conflict judgment means 11 are to next P-CQI subframes
The judgement that conflicts with TTI binding transmission/re-transmissions also further discriminates between TDD situations and FDD situations.
In a preferable example, refering to Fig. 5, according to TDD configuration modes 1, wherein 0,1,2,3 represent TTI up to 9
The sequence number of frame, the time interval of 1 TTI subframe is 1ms.D represents downlink subframe, and U represents uplink sub-frames, and S is represented
The downlink subframe and next subframe of instruction will be switched to uplink sub-frames.It is assumed that TTI subframes must be opened from subframe 2 or 7
Begin, RV0, RV2, RV3, RV1 represent 4 continuous sub-frame of uplink HARQ RV editions combined by TTI binding transmission/re-transmissions
This.UL mandates indicate that it is uplink grant subframe, and NACK indicates that it is non-acknowledgement message subframe.Wherein, from calculating from left to right,
The distance of uplink grant subframe and first RV0 subframe is 6, the distance of first RV1 subframe and first NACK subframe
Also it is 6, the distance of the NACK subframes and second RV0 subframe is 8, between the time of first RV0 subframe and first RV1 subframe
It is divided into 7ms.
Here, under TDD situations, when meeting the following conditions, conflict judgment means 11 will determine the biography of next P-CQI information
Defeated subframe bundlees transmission/retransmission collisions with a TTI.Specifically：
When the P-CQI information from user equipment is not received in 80ms：
1）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 20 remainder<7；
2）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/20 <HARQ maximum transmitteds time
The number that TTI needed for number is bundled.
Wherein, the distance of the transmission subframe of next P-CQI information can be determined according to the distance between sub-frame number.
The number that TTI needed for HARQ maximum transmission times is bundled is determined by HARQ maximum transmission times divided by 4；Wherein,
HARQ maximum transmission times are cell-level parameters, and 4 expression TTI bindings need to combine 4 continuous sub-frame of uplink.
20 be time division duplex TTI binding HARQ round-trip delays（Round-Trip time, abbreviation RTT time）, that is,
The user's equipment starts HARQ re-transmissions after a upper HARQ transmission starts 20ms.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 20 remainder can be used under determining
The specific location of one P-CQI information, referring still to Fig. 5, when the numerical value of the remainder is less than 7（First RV0 subframe and first RV1
The distance of subframe）When, next P-CQI subframes may bundle transmission/retransmission collisions with TTI.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 20 can be used for determining next P-CQI
The time range of subframe, when the quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, next P-CQI subframes
Transmission/retransmission collisions may be bundled with TTI.
When above-mentioned remainder is less than 7 and above-mentioned quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, punching
Prominent judgment means 11 can determine that the transmission subframe of next P-CQI information and a TTI bundle transmission/retransmission collisions.
In another preferable example, under FDD situations, when meeting the following conditions, under conflict judgment means 11 will determine
The transmission subframe of one P-CQI information bundlees transmission/retransmission collisions with a TTI.Specifically：
When the P-CQI information from user equipment is not received in 80ms：
1）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 16 remainder<4；
2）The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/16 <HARQ maximum transmitteds time
The number that TTI needed for number is bundled.
Wherein, the distance of the transmission subframe of next P-CQI information can be determined according to the distance between sub-frame number.
The number that TTI needed for HARQ maximum transmission times is bundled is determined by HARQ maximum transmission times divided by 4；Wherein,
HARQ maximum transmission times are cell-level parameters, and 4 expression TTI bindings need to combine 4 continuous sub-frame of uplink.
16 be frequency division duplex TTI binding HARQ round-trip delays（RTT time）, that is, the user's equipment k is in a upper HARQ
Transmission starts to start HARQ re-transmissions after 16ms.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 16 remainder can be used under determining
The position range of one P-CQI information, when the remainder numerical value be less than 4 when, next P-CQI subframes may with TTI bundle transmission/
Retransmission collisions.
The distance of the transmission subframe of next P-CQI information（For current scheduling subframe）/ 16 quotient can be used under determining
The time range of one P-CQI information, when the quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, next P-
CQI subframes may bundle transmission/retransmission collisions with TTI.
When above-mentioned remainder is less than 4 and above-mentioned quotient is less than the number that TTI needed for HARQ maximum transmission times is bundled, punching
Prominent judgment means 11 can determine that the transmission subframe of next P-CQI information and a TTI bundle transmission/retransmission collisions.
TTI bundled users with semi-continuous scheduling
For the TTI bundled users with semi-continuous scheduling, when within one section of cycle time or continuous multiple P-CQI are passed
When defeated subframe does not receive the P-CQI information of TTI bundled users transmission, conflict judgment means 11 are according to semi-continuous scheduling mandate
（Semi-persistent scheduling grant, abbreviation SPS mandates）Subframe instruction TTI binding subframe position and
The position of the transmission subframe of next P-CQI information passes to judge whether the transmission subframe of next P-CQI information bundlees with a TTI
Defeated/retransmission collisions.
Semi-continuous scheduling mode refers to that during the scheduled transmission of LTE eNB passes through PDCCH（Physical
Downlink Control Channel, physical downlink control channel）Indicate the current scheduling informations of UE, UE identifications are adjusted
Degree mode is enterprising in identical subframe position every the fixed cycle after semi-continuous scheduling, then to preserve current scheduling information
The transmission or reception of row business datum.
Dispatching device 10 further includes a position determining means（It is not shown）.Position determining means are used for according to P-CQI information
Transmission subframe position, come determine activation semi-continuous scheduling mandate（active SPS grant）The TTI bundles of subframe instruction
The subframe position tied up, to ensure to activate the subframe position of the TTI bindings of the semi-continuous scheduling mandate instruction not biography with P-CQI information
Defeated subframe conflict.
Wherein, the SPS of activation authorizes subframe to refer to first semi-continuous scheduling mandate subframe, cannot be with P-CQI subframes
Conflict.It is fixed cycle and fixed position since SPS authorizes the subframe position of the TTI bindings of subframe instruction, and is conversing
Constant in the time burst out, the interval of such as most of VoIP bags is 20ms, therefore for each SPS is avoided to authorize subframe and P-CQI
Subframe conflict, position determining means are according to the position of the transmission subframe of P-CQI information, to determine that the SPS of activation authorizes subframe to refer to
Show TTI binding subframe position, with ensure activate SPS authorize subframe instruction TTI bundle subframe position not with P-CQI
Conflict.
Therefore, the subframe position and next P- that the TTI that the judgment means 11 that conflict can authorize subframe to indicate according to SPS is bundled
The position of the transmission subframe of CQI information, to judge whether the transmission subframe of next P-CQI information bundlees transmission/weight with a TTI
Pass conflict.
When transmission subframe and a TTI binding transmission/retransmission collisions of next P-CQI information, transmission is abandoned device 12 and is put
TTI binding transmission/re-transmissions are abandoned, to ensure to receive next P-CQI information.
For example, cooperation retransmits and next P-CQI information refering to Fig. 3 when the TTI for the HARQ processes that 70 to 80 are identified is bundled
During conflict, device 12 is abandoned in transmission to be forced to return to ACK message to user equipment by the HARQ processes identified to 70 to 80
Mode retransmits to abandon the TTI of 70 to the 80 HARQ processes identified bindings.
Here, including but not limited to below 2 kinds of the mode that device 12 abandons TTI binding transmission/re-transmissions is abandoned in transmission：
1）Device 12 is abandoned in transmission to be forced the TTI HARQ processes bundled to return to ACK message to user equipment, and which is fitted
For dynamic dispatching and semi-continuous scheduling.
If a TTI binding HARQ transmission/re-transmission will conflict with the transmission subframe of next P-CQI information, no matter should
HARQ transmission/re-transmission whether successfully decoded, transmission abandons device 12 and returns to compulsory ACK to TTI binding transmission/re-transmission disappearing
Breath, to ensure to receive next P-CQI information.
2）Device 12 is abandoned in transmission does not dispatch Physical Uplink Shared Channel in the transmission subframe of next P-CQI information
（PUSCH）Resource, which are only applicable to dynamic dispatching.
It should be noted that the present invention can be carried out in the assembly of software and/or software and hardware, for example, can adopt
Use application-specific integrated circuit（ASIC）, general purpose computer or any other realized similar to hardware device.In one embodiment
In, software program of the invention can perform to realize steps described above or function by processor.Similarly, it is of the invention
Software program（Including relevant data structure）It can be stored in computer readable recording medium storing program for performing, for example, RAM memory,
Magnetic or optical driver or floppy disc and similar devices.In addition, hardware can be used to realize in some steps or function of the present invention, example
Such as, as the circuit for coordinating to perform each step or function with processor.
In addition, the part of the present invention can be applied to computer program product, such as computer program instructions, when its quilt
When computer performs, by the operation of the computer, the method according to the invention and/or technical solution can be called or provided.
And the program instruction of the method for the present invention is called, it is possibly stored in fixed or moveable recording medium and/or passes through
Broadcast or the data flow in other signal bearing medias and be transmitted and/or be stored according to described program instruction operation
In the working storage of computer equipment.Here, including a device according to one embodiment of present invention, which includes using
Memory in storage computer program instructions and processor for executing program instructions, wherein, when the computer program refers to
When order is performed by the processor, method and/or skill of the device operation based on foregoing multiple embodiments according to the present invention are triggered
Art scheme.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation includes within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.This
Outside, it is clear that one word of " comprising " is not excluded for other units or step, and odd number is not excluded for plural number.That is stated in system claims is multiple
Unit or device can also be realized by a unit or device by software or hardware.The first, the second grade words are used for table
Show title, and do not represent any particular order.
Claims (12)
1. a kind of periodic channel quality for TTI bundled users indicates P-CQI transmission methods, wherein, this method includes：
Step a worked as within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive TTI bundled users transmission
P-CQI information when, judge next P-CQI information transmission subframe whether with a TTI bundle transmission/retransmission collisions；
Step b abandons the TTI bindings transmission/re-transmission, to ensure to receive next P-CQI information when the two conflicts.
2. according to the method described in claim 1, wherein, judge in the step a next P-CQI information transmission subframe whether
The step of bundling transmission/retransmission collisions with a TTI further comprises：
- passed according to distance, TTI binding HARQ round-trip delays and the HARQ maximums of the transmission subframe of next P-CQI information
Needed for defeated number TTI bundle number, determine next P-CQI information transmission subframe whether with a TTI bundle transmission/weight
Pass conflict.
3. according to the method described in claim 1, wherein, judge in the step a next P-CQI information transmission subframe whether
The step of bundling transmission/retransmission collisions with a TTI further comprises：
- according to the TTI of the semi-continuous scheduling mandate instruction subframe positions bundled and the transmission subframe of next P-CQI information
Position, come judge the transmission subframe of next P-CQI information whether with a TTI bundle transmission/retransmission collisions.
4. according to the method described in claim 3, wherein, this method further includes：
- according to the position of the transmission subframe of P-CQI information, to determine the TTI bindings of the semi-continuous scheduling mandate of activation instruction
Subframe position, with ensure the semi-continuous scheduling mandate of the activation instruction TTI bundle subframe position not with P-CQI information
Transmit subframe conflict.
5. method according to claim 1 or 2, wherein, the step that the TTI bundlees transmission/re-transmission is abandoned in the step b
Suddenly include：
- Physical Uplink Shared Channel resource is not dispatched in the transmission subframe of next P-CQI information.
6. method according to any one of claim 1 to 4, wherein, abandoned in the step b TTI bindings transmission/
The step of re-transmission, includes：
- the HARQ processes of TTI bindings are forced to return to ACK message to the user equipment.
7. a kind of periodic channel quality for TTI bundled users indicates P-CQI transmitting devices, wherein, which includes：
Conflict judgment means, for when within one section of cycle time or continuous multiple P-CQI transmission subframes do not receive a TTI
Bundled user send P-CQI information when, judge next P-CQI information transmission subframe whether with a TTI bundle transmission/re-transmission
Conflict；
Device is abandoned in transmission, for when the two conflicts, abandoning TTI binding transmission/re-transmission, with ensure to receive it is described under
One P-CQI information.
8. device according to claim 7, wherein, what the conflict judgment means performed judges next P-CQI information
The operation whether transmission subframe bundlees transmission/retransmission collisions with a TTI further comprises：
- passed according to distance, TTI binding HARQ round-trip delays and the HARQ maximums of the transmission subframe of next P-CQI information
Needed for defeated number TTI bundle number, determine next P-CQI information transmission subframe whether with a TTI bundle transmission/weight
Pass conflict.
9. device according to claim 7, wherein, what the conflict judgment means performed judges next P-CQI information
The operation whether transmission subframe bundlees transmission/retransmission collisions with a TTI further comprises：
- according to the TTI of the semi-continuous scheduling mandate instruction subframe positions bundled and the transmission subframe of next P-CQI information
Position, come judge the transmission subframe of next P-CQI information whether with a TTI bundle transmission/retransmission collisions.
10. device according to claim 9, wherein, which further includes：
Position determining means, for the position of the transmission subframe according to P-CQI information, to determine the semi-continuous scheduling mandate of activation
The subframe position of the TTI bindings of instruction, the subframe position bundled with the TTI for ensuring the semi-continuous scheduling mandate of activation instruction
Do not conflict with the transmission subframe of P-CQI information.
11. the device according to claim 7 or 8, wherein, the TTI that abandons that device execution is abandoned in the transmission is bundled
The operation of transmission/re-transmission includes：
- Physical Uplink Shared Channel resource is not dispatched in the transmission subframe of next P-CQI information.
12. the device according to any one of claim 7 to 10, wherein, what device execution was abandoned in the transmission abandons institute
Stating the operation of TTI binding transmission/re-transmissions includes：
- the HARQ processes of TTI bindings are forced to return to ACK message to the user equipment.
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| CN103138903A (en) * | 2011-11-30 | 2013-06-05 | 上海贝尔股份有限公司 | Method and device for transmitting time division-synchronous code division multiple access (TD-SCDMA) long term evolution (TD-LTE) TTI bundling |
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| CN103138903A (en) * | 2011-11-30 | 2013-06-05 | 上海贝尔股份有限公司 | Method and device for transmitting time division-synchronous code division multiple access (TD-SCDMA) long term evolution (TD-LTE) TTI bundling |
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| 3rd Generation Partnership Project.Evolved Universal Terrestrial Radio Access (E-UTRA),Physical layer procedures.《3GPP TS 36.213 V8.5.0》.2008, * |
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