CN108076527A - The method and device of notification transmission block size in a kind of short TTI - Google Patents

The method and device of notification transmission block size in a kind of short TTI Download PDF

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Publication number
CN108076527A
CN108076527A CN201611025373.XA CN201611025373A CN108076527A CN 108076527 A CN108076527 A CN 108076527A CN 201611025373 A CN201611025373 A CN 201611025373A CN 108076527 A CN108076527 A CN 108076527A
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China
Prior art keywords
stti
prb
spdsch
tbs
information
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Inventor
周欢
孙鹏
许瑞锋
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Beijing Xin Wei Yongsheng Telecom Technology Co Ltd
Beijing Xinwei Telecom Technology Inc
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Beijing Xin Wei Yongsheng Telecom Technology Co Ltd
Beijing Xinwei Telecom Technology Inc
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Priority to CN201611025373.XA priority Critical patent/CN108076527A/en
Publication of CN108076527A publication Critical patent/CN108076527A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a kind of method and devices of notification transmission block size in short TTI.This method includes user equipment (UE) and converts Nprb according to actually available symbol numbers；The UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, the scheduling information of the data channel sPDSCH and sPUSCH includes MCS information and resource allocation information, and the resource allocation information is for obtaining PRB number NPRB；The UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd the expense of reference signal or control channel, available N' when converting sPDSCHPRB；The UE is according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS.During so as to fulfill carrying out data channel scheduling in sTTI, transport block size is indicated.

Description

The method and device of notification transmission block size in a kind of short TTI
Technical field
The present embodiments relate to a kind of sides of notification transmission block size in the technical field of communication more particularly to short TTI Method and device.
Background technology
The delay of data packet is a critically important performance indicator such as equipment, operator, and one is also served as at the beginning of LTE is designed A design object.At present, many service features are influenced by Packet Delay, such as：Game, in real time application such as VoLTE/OTT VoIP, visual telephone/meeting etc..Some following business are also harsh to delay requirement, for example, remote control/driving vehicle , machine communication and critical communication etc..So prolong to ensure the evolution of LTE and competitiveness, it is necessary to study and reduce data packet Slow method.SI problems Study on Latency reduction techniques distinguish from high-rise and physical layer in 3GPP Research reduce time delay solution method, this SI concluding a research item at present, and set up a new WI problem further to above-mentioned reduction when Prolong and be standardized.
In SI by Short TTI be known as short transmission time quantum (Short Transmission Time Interval, sTTI).And only the short physical down of 2 symbol sTTI and 1 time slot (7 symbol) sTTI is supported to share in FS1 (frame structure of FDD) Channel (short Physical Downlink Shared Channel, sPDSCH)/short Physical Downlink Control Channel (short Physical Downlink Control Channel, sPDCCH)；Support 2 symbol sTTI, 4 symbol sTTI and 1 slot s TTI SPUCCH/sPUSCH.
Modulating-coding grade (the Modulation and of 5bit are included in the scheduling information of PUSCH of the prior art Coding scheme, MCS) and redundancy versions (Redundancy Version, RV) field, it is used to indicate used in transmission block Modulation system and TBS indexes and RV versions；The MCS fields of 5bit are included in the scheduling information of PDSCH, are used to indicate transmission block Modulation system used and TBS indexes；Above-mentioned TBS indexes and the Physical Resource Block number N for distributing to this UEPRB, jointly in TBS Indicate unique transport block size in form, i.e. the data bit number carried in PDSCH and PUSCH.TBS forms are according to length The TTI designs for 1ms are spent, give tacit consent to PDCCH, the 2port CRS of 3OFDM symbols, i.e., shared 120RE/PRB can be used for PDSCH. PUSCH and the common identical TBS forms of PDSCH.
When using sTTI, available RE numbers are reduced, thus during eNB progress data channel schedulings, it can not be according to present association The TBS indexes of 1ms TTI in view, transport block size (Transmission Block Size, TBS) current notice UE, i.e., The data bit number carried in sPDSCH and sPUSCH.
The content of the invention
The purpose of the embodiment of the present invention is in a kind of method and device of the notification transmission block size in short TTI is proposed, it is intended to Solve the problems, such as how to carry out indicating transport block size during data channel scheduling in sTTI.
For this purpose, the embodiment of the present invention uses following technical scheme：
In a first aspect, in a kind of short TTI notification transmission block size method, the described method includes：
User equipment (UE) converts Nprb according to actually available symbol numbers；
The UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, the data channel The scheduling information of sPDSCH and sPUSCH includes MCS information and resource allocation information, and the resource allocation information is used to obtain PRB Number NPRB；
The UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control channel Expense, available N' when converting sPDSCHPRB；
The UE is according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS.
Preferably, the MCS information passes through the MCS fields indicating modulation mode of 5bit and MCS ropes including the sPDSCH Draw IMCSAnd TBS indexes I is obtained according to the original MCS formsTBS；Alternatively, the sPUSCH indicates to adjust by the MCS fields of 5bit Mode processed and MCS index RV versions simultaneously obtain TBS indexes I according to the original MCS formsTBS。
Preferably, the UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, including：
The UE is semi-statically configured the length of the sTTI of sPDSCH and sPUSCH by high-level signaling；Alternatively,
The UE includes the length information of sTTI by the physical layer scheduling of the data channel sPDSCH and sPUSCH.
Preferably, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRB, including：
The UE according toAvailable N' when converting sPDSCHPRB；
Wherein,For the symbol numbers included in a RB.
Preferably, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRBBefore, further include：
The UE obtains the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH, passes through data channel physics The symbol of subframe where layer scheduling information indicates the sTTI.
Preferably, the UE obtains the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH, passes through data The symbol of subframe where channel physical layer scheduling information indicates the sTTI, including：
The symbol of PDCCH in the sTTI is obtained according to the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH Number number NPDCCH；
Symbol numbers N according to shared by the location information obtains DMRS in the sTTIDMRSWith the symbol shared by SRS Number NSRS。
Preferably, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRB, including：
Alternatively,
Wherein, the Nsubframe_PDCCHFor PDCCH symbol numbers in present sub-frame.
Preferably, the UE is according to PRB number NPRBAnd the length information N of sTTIsTTIAnd reference signal or control channel Expense, convert sPUSCH when available N'PRB, including：
Alternatively,
Alternatively,
Alternatively,
Preferably, the method further includes：
The UE converts TBS ' according to the transport block size TBS.
Preferably, the UE converts TBS ' according to the transport block size TBS, including：
Alternatively,
Alternatively,
Alternatively,
Second aspect, the device of notification transmission block size, described device include in a kind of short TTI：
First computing module, for converting Nprb according to actually available symbol numbers；
First acquisition module, for obtaining the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, it is described The scheduling information of data channel sPDSCH and sPUSCH include MCS information and resource allocation information, and the resource allocation information is used In PRB number N of acquisitionPRB；
Second computing module, for according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal Or the expense of control channel, available N' when converting sPDSCHPRB；
Second acquisition module, for according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS。
Preferably, the MCS information passes through the MCS fields indicating modulation mode of 5bit and MCS ropes including the sPDSCH Draw IMCSAnd TBS indexes I is obtained according to the original MCS formsTBS；Alternatively, the sPUSCH indicates to adjust by the MCS fields of 5bit Mode processed and MCS index RV versions simultaneously obtain TBS indexes I according to the original MCS formsTBS。
Preferably, first acquisition module, is specifically used for：
The length of the sTTI of sPDSCH and sPUSCH are semi-statically configured by high-level signaling；Alternatively,
The length information of sTTI is included by the physical layer scheduling of the data channel sPDSCH and sPUSCH.
Preferably, second computing module, is specifically used for：
According toAvailable N' when converting sPDSCHPRB；
Wherein,For the symbol numbers included in a RB.
Preferably, described device further includes：3rd acquisition module, in the UE according to the PRB number NPRB, institute State the length information N of sTTIsTTIAnd the expense of reference signal or control channel, available N' when converting sPDSCHPRBBefore, obtain The location information of symbol residing for the sTTI of the sPDSCH and sPUSCH is taken, institute is indicated by data channel physical layer scheduling information The symbol of subframe where stating sTTI.
Preferably, the 3rd acquisition module, is specifically used for：
The symbol of PDCCH in the sTTI is obtained according to the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH Number number NPDCCH；
Symbol numbers N according to shared by the location information obtains DMRS in the sTTIDMRSWith the symbol shared by SRS Number NSRS。
Preferably, second computing module, is specifically used for：
Alternatively,
Wherein, the Nsubframe_PDCCHFor PDCCH symbol numbers in present sub-frame.
Preferably, second computing module, also particularly useful for：
Alternatively,
Alternatively,
Alternatively,
Preferably, described device further includes：
3rd computing module converts TBS ' for the UE according to the transport block size TBS.
Preferably, the 3rd computing module, is specifically used for：
Alternatively,
Alternatively,
Alternatively,
The method and device of notification transmission block size, user equipment (UE) root in a kind of short TTI provided in an embodiment of the present invention The factually available symbol numbers conversion Nprb in border；The UE obtains the length information of the sTTI of data channel sPDSCH and sPUSCH NsTTI, the scheduling information of the data channel sPDSCH and sPUSCH includes MCS information and resource allocation information, the resource point It is used to obtain PRB number N with informationPRB；The UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd ginseng The expense of signal or control channel is examined, available N' when converting sPDSCHPRB；The UE is according to TBS indexes ITBSWith the N'PRB, Former TBS forms are looked into, obtain transport block size TBS.During so as to fulfill carrying out data channel scheduling in sTTI, instruction transmission block is big It is small.
Description of the drawings
Fig. 1 is the flow diagram of the method for notification transmission block size in a kind of short TTI provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of the method for notification transmission block size in the short TTI of another kind provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of the method for notification transmission block size in the short TTI of another kind provided in an embodiment of the present invention；
Fig. 4 is the function module signal of the device of notification transmission block size in a kind of short TTI provided in an embodiment of the present invention Figure.
Specific embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this Locate described specific embodiment to be used only for explaining the embodiment of the present invention rather than the restriction to the embodiment of the present invention.In addition also It should be noted that part relevant with the embodiment of the present invention rather than entire infrastructure are illustrated only for ease of description, in attached drawing.
With reference to figure 1, Fig. 1 is the flow of the method for notification transmission block size in a kind of short TTI provided in an embodiment of the present invention Schematic diagram.
As shown in Figure 1, the method for notification transmission block size includes in the short TTI：
Step 101, user equipment (UE) converts Nprb according to actually available symbol numbers；
Step 102, the UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, the data The scheduling information of passage sPDSCH and sPUSCH include MCS information and resource allocation information, and the resource allocation information is used to obtain Take PRB number NPRB；
Specifically, the scheduling information of data channel sPDSCH and sPUSCH still include MCS information IMCS=6, according to former MCS Form corresponds to obtain TBS indexes ITBS=6.The scheduling information of data channel sPDSCH and sPUSCH still include resource allocation information, The PRB number that can be distributed by resource allocation information, NPRB=10.
Preferably, the UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, including：
The UE is semi-statically configured the length of the sTTI of sPDSCH and sPUSCH by high-level signaling；Alternatively,
The UE includes the length information of sTTI by the physical layer scheduling of the data channel sPDSCH and sPUSCH.
Wherein, the MCS information passes through the MCS fields indicating modulation mode of 5bit and MCS indexes including the sPDSCH IMCSAnd TBS indexes I is obtained according to the original MCS formsTBS；Alternatively, the sPUSCH indicates modulation by the MCS fields of 5bit Mode and MCS index RV versions simultaneously obtain TBS indexes I according to the original MCS formsTBS。
Step 103, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRB；
Wherein, UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI=7.
Preferably, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRB, including：
The UE according toAvailable N' when converting sPDSCHPRB；
Wherein,For the symbol numbers included in a RB.
Step 104, the UE is according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS.
The method of notification transmission block size in a kind of short TTI provided in an embodiment of the present invention, user equipment (UE) is according to reality Available symbol numbers convert Nprb；The UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, The scheduling information of the data channel sPDSCH and sPUSCH includes MCS information and resource allocation information, the resource allocation letter It ceases to obtain PRB number NPRB；The UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd with reference to letter Number or control channel expense, convert sPDSCH when available N'PRB；The UE is according to TBS indexes ITBSWith the N'PRB, look into original TBS forms obtain transport block size TBS.During so as to fulfill carrying out data channel scheduling in sTTI, transport block size is indicated.
With reference to figure 2, Fig. 2 is the stream of the method for notification transmission block size in the short TTI of another kind provided in an embodiment of the present invention Journey schematic diagram.
As shown in Fig. 2, the method for notification transmission block size includes in the short TTI：
Step 201, user equipment (UE) converts Nprb according to actually available symbol numbers；
Step 202, the UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, the data The scheduling information of passage sPDSCH and sPUSCH include MCS information and resource allocation information, and the resource allocation information is used to obtain Take PRB number NPRB；
Step 203, the UE obtains the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH, passes through data The symbol of subframe where channel physical layer scheduling information indicates the sTTI；
Specifically, UE obtains the residing symbol of the sTTI of data channel sPDSCH and sPUSCH as preceding 7 symbols in a subframe During number sPDSCH, then the symbol numbers N of PDCCH in this sTTI is obtained by character positionPDCCH=3.
Preferably, the UE obtains the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH, passes through data The symbol of subframe where channel physical layer scheduling information indicates the sTTI, including：
The symbol of PDCCH in the sTTI is obtained according to the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH Number number NPDCCH；
Symbol numbers N according to shared by the location information obtains DMRS in the sTTIDMRSWith the symbol shared by SRS Number NSRS。
The UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control channel Expense, available N' when converting sPDSCHPRB；
Preferably, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRB, including：
Alternatively,
Wherein, the Nsubframe_PDCCHFor PDCCH symbol numbers in present sub-frame.
Preferably, the UE is according to PRB number NPRBAnd the length information N of sTTIsTTIAnd reference signal or control channel Expense, convert sPUSCH when available N'PRB, including：
Alternatively,
Alternatively,
Alternatively,
Specifically, UE is according to PRB number NPRBAnd the length information N of sTTIsTTIAnd reference signal or control channel are opened Pin, available N' when converting sPDSCHPRB(following three kinds of modes are relation arranged side by side, any one can be used)
Mode 1：
Mode 2：Consider the symbol numbers of PDCCH in present sub-frame：
Mode 3：Consider PDCCH symbol numbers N in present sub-framesubframe_PDCCHAnd available symbol numbers in this sTTI：
Step 204, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRB；
Step 205, the UE is according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS.
Specifically, TBS indexes ITBSWith PRB number N'PRB, former TBS forms are looked into, obtain transport block size TBS bases respectively Above-mentioned three kinds of modes obtain 872,1224,696.
With reference to figure 3, Fig. 3 is the stream of the method for notification transmission block size in the short TTI of another kind provided in an embodiment of the present invention Journey schematic diagram.
As shown in figure 3, the method for notification transmission block size includes in the short TTI：
Step 301, user equipment (UE) converts Nprb according to actually available symbol numbers；
Step 302, the UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, the data The scheduling information of passage sPDSCH and sPUSCH include MCS information and resource allocation information, and the resource allocation information is used to obtain Take PRB number NPRB；
Step 303, the UE obtains the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH, passes through data The symbol of subframe where channel physical layer scheduling information indicates the sTTI；
Step 304, the UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel processed, available N' when converting sPDSCHPRB；
Step 305, the UE is according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS；
Step 306, the UE converts TBS ' according to the transport block size TBS.
Specifically, the TBS ' of UE actual transmissions is different from the TBS that downlink notifies, UE is needed according to current sign number With STTI length, real TBS ' is converted into.
Preferably, the UE converts TBS ' according to the transport block size TBS, including：
Alternatively,
Alternatively,
Alternatively,
With reference to figure 4, Fig. 4 is the function of the device of notification transmission block size in a kind of short TTI provided in an embodiment of the present invention Module diagram.
As shown in figure 4, described device includes：
First computing module 401, for converting Nprb according to actually available symbol numbers；
First acquisition module 402, for obtaining the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, institute The scheduling information for stating data channel sPDSCH and sPUSCH includes MCS information and resource allocation information, the resource allocation information For obtaining PRB number NPRB；
Second computing module 403, for according to the PRB number NPRB, the sTTI length information NsTTIAnd with reference to letter Number or control channel expense, convert sPDSCH when available N'PRB；
Second acquisition module 404, for according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, it is big to obtain transmission block Small TBS.
Preferably, the MCS information passes through the MCS fields indicating modulation mode of 5bit and MCS ropes including the sPDSCH Draw IMCSAnd TBS indexes I is obtained according to the original MCS formsTBS；Alternatively, the sPUSCH indicates to adjust by the MCS fields of 5bit Mode processed and MCS index RV versions simultaneously obtain TBS indexes I according to the original MCS formsTBS。
Preferably, first acquisition module 402, is specifically used for：
The length of the sTTI of sPDSCH and sPUSCH are semi-statically configured by high-level signaling；Alternatively,
The length information of sTTI is included by the physical layer scheduling of the data channel sPDSCH and sPUSCH.
Preferably, second computing module 403, is specifically used for：
Preferably, described device further includes：3rd acquisition module, in the UE according to the PRB number NPRB, institute State the length information N of sTTIsTTIAnd the expense of reference signal or control channel, available N' when converting sPDSCHPRBBefore, obtain The location information of symbol residing for the sTTI of the sPDSCH and sPUSCH is taken, institute is indicated by data channel physical layer scheduling information The symbol of subframe where stating sTTI.
Preferably, the 3rd acquisition module, is specifically used for：
The symbol of PDCCH in the sTTI is obtained according to the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH Number number NPDCCH；
Symbol numbers N according to shared by the location information obtains DMRS in the sTTIDMRSWith the symbol shared by SRS Number NSRS。
Preferably, second computing module 403, is specifically used for：
Alternatively,
Wherein, the Nsubframe_PDCCHFor PDCCH symbol numbers in present sub-frame.
Preferably, second computing module 403, also particularly useful for：
Alternatively,
Alternatively,
Alternatively,
Preferably, described device further includes：
3rd computing module converts TBS ' for the UE according to the transport block size TBS.
Preferably, the 3rd computing module, is specifically used for：
Alternatively,
Alternatively,
Alternatively,
The device of notification transmission block size in a kind of short TTI provided in an embodiment of the present invention, user equipment (UE) is according to reality Available symbol numbers convert Nprb；The UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, The scheduling information of the data channel sPDSCH and sPUSCH includes MCS information and resource allocation information, the resource allocation letter It ceases to obtain PRB number NPRB；The UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd with reference to letter Number or control channel expense, convert sPDSCH when available N'PRB；The UE is according to TBS indexes ITBSWith the N'PRB, look into original TBS forms obtain transport block size TBS.During so as to fulfill carrying out data channel scheduling in sTTI, transport block size is indicated.
The technical principle of the embodiment of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain this The principle of inventive embodiments, and the limitation to protection domain of the embodiment of the present invention cannot be construed in any way.Based on herein Explanation, those skilled in the art, which would not require any inventive effort, can associate the other specific of the embodiment of the present invention Embodiment, these modes are fallen within the protection domain of the embodiment of the present invention.

Claims (20)

1. a kind of method of notification transmission block size in short TTI, which is characterized in that the described method includes：
User equipment (UE) converts Nprb according to actually available symbol numbers；
The UE obtains the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, the data channel sPDSCH and The scheduling information of sPUSCH includes MCS information and resource allocation information, and the resource allocation information is used to obtain PRB number NPRB；
The UE is according to the PRB number NPRB, the sTTI length information NsTTIAnd the expense of reference signal or control channel, Available N' when converting sPDSCHPRB；
The UE is according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS.
2. according to the method described in claim 1, it is characterized in that, the MCS information passes through 5bit's including the sPDSCH MCS fields indicating modulation mode and MCS indexes IMCSAnd TBS indexes I is obtained according to the original MCS formsTBS；It is alternatively, described SPUSCH by the MCS fields indicating modulation mode and MCS index RV versions of 5bit and obtains TBS according to the original MCS forms Index ITBS。
3. according to the method described in claim 1, it is characterized in that, the UE obtains data channel sPDSCH's and sPUSCH The length information N of sTTIsTTI, including：
The UE is semi-statically configured the length of the sTTI of sPDSCH and sPUSCH by high-level signaling；Alternatively,
The UE includes the length information of sTTI by the physical layer scheduling of the data channel sPDSCH and sPUSCH.
4. according to the method described in claim 1, it is characterized in that, the UE is according to the PRB number NPRB, the sTTI Length information NsTTIAnd the expense of reference signal or control channel, available N' when converting sPDSCHPRB, including：
The UE according toAvailable N' when converting sPDSCHPRB；
Wherein,For the symbol numbers included in a RB.
5. method according to any one of claims 1 to 4, which is characterized in that the UE is according to the PRB number NPRB、 The length information N of the sTTIsTTIAnd the expense of reference signal or control channel, available N' when converting sPDSCHPRBBefore, It further includes：
The UE obtains the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH, passes through data channel physical layer tune Spend the symbol of subframe where information indicates the sTTI.
6. according to the method described in claim 5, it is characterized in that, the UE obtains the sTTI institutes of the sPDSCH and sPUSCH Locate the location information of symbol, the symbol of subframe where indicating the sTTI by data channel physical layer scheduling information, including：
The symbol of PDCCH in the sTTI is obtained according to the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH Number NPDCCH；
Symbol numbers N according to shared by the location information obtains DMRS in the sTTIDMRSWith the symbol numbers shared by SRS NSRS。
7. according to the method described in claim 6, it is characterized in that, the UE is according to the PRB number NPRB, the sTTI Length information NsTTIAnd the expense of reference signal or control channel, available N' when converting sPDSCHPRB, including：
Alternatively,
Wherein, the Nsubframe_PDCCHFor PDCCH symbol numbers in present sub-frame.
8. according to the method described in claim 6, it is characterized in that, the UE is according to PRB number NPRBAnd the length information of sTTI NsTTIAnd the expense of reference signal or control channel, available N' when converting sPUSCHPRB, including：
Alternatively,
Alternatively,
Alternatively,
9. method according to any one of claims 1 to 4, which is characterized in that the method further includes：
The UE converts TBS ' according to the transport block size TBS.
10. according to the method described in claim 9, it is characterized in that, the UE is converted according to the transport block size TBS TBS ', including：
Alternatively,
Alternatively,
Alternatively,
11. the device of notification transmission block size in a kind of short TTI, which is characterized in that described device includes：
First computing module, for converting Nprb according to actually available symbol numbers；
First acquisition module, for obtaining the length information N of the sTTI of data channel sPDSCH and sPUSCHsTTI, the data lead to The scheduling information of road sPDSCH and sPUSCH include MCS information and resource allocation information, and the resource allocation information is used to obtain PRB number NPRB；
Second computing module, for according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel, available N' when converting sPDSCHPRB；
Second acquisition module, for according to TBS indexes ITBSWith the N'PRB, former TBS forms are looked into, obtain transport block size TBS.
12. according to the devices described in claim 11, which is characterized in that the MCS information passes through 5bit including the sPDSCH MCS fields indicating modulation mode and MCS indexes IMCSAnd TBS indexes I is obtained according to the original MCS formsTBS；It is alternatively, described SPUSCH by the MCS fields indicating modulation mode and MCS index RV versions of 5bit and obtains TBS according to the original MCS forms Index ITBS。
13. according to the devices described in claim 11, which is characterized in that first acquisition module is specifically used for：
The length of the sTTI of sPDSCH and sPUSCH are semi-statically configured by high-level signaling；Alternatively,
The length information of sTTI is included by the physical layer scheduling of the data channel sPDSCH and sPUSCH.
14. according to the devices described in claim 11, which is characterized in that second computing module is specifically used for：
According toAvailable N' when converting sPDSCHPRB；
Wherein,For the symbol numbers included in a RB.
15. according to the device described in claim 11 to 14 any one, which is characterized in that described device further includes：3rd obtains Modulus block, in the UE according to the PRB number NPRB, the sTTI length information NsTTIAnd reference signal or control The expense of channel, available N' when converting sPDSCHPRBBefore, symbol residing for the sTTI of the sPDSCH and sPUSCH is obtained Location information, the symbol of subframe where indicating the sTTI by data channel physical layer scheduling information.
16. device according to claim 15, which is characterized in that the 3rd acquisition module is specifically used for：
The symbol of PDCCH in the sTTI is obtained according to the location information of symbol residing for the sTTI of the sPDSCH and sPUSCH Number NPDCCH；
Symbol numbers N according to shared by the location information obtains DMRS in the sTTIDMRSWith the symbol numbers shared by SRS NSRS。
17. device according to claim 16, which is characterized in that second computing module is specifically used for：
Alternatively,
Wherein, the Nsubframe_PDCCHFor PDCCH symbol numbers in present sub-frame.
18. device according to claim 16, which is characterized in that second computing module, also particularly useful for：
Alternatively,
Alternatively,
Alternatively,
19. according to the device described in claim 11 to 14 any one, which is characterized in that described device further includes：
3rd computing module converts TBS ' for the UE according to the transport block size TBS.
20. device according to claim 19, which is characterized in that the 3rd computing module is specifically used for：
Alternatively,
Alternatively,
Alternatively,
CN201611025373.XA 2016-11-14 2016-11-14 The method and device of notification transmission block size in a kind of short TTI Pending CN108076527A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110661605A (en) * 2018-06-29 2020-01-07 普天信息技术有限公司 Method for determining downlink traffic channel TBS of sTTI system
CN111092693A (en) * 2017-01-05 2020-05-01 Oppo广东移动通信有限公司 Method and communication device for transmitting data

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111092693A (en) * 2017-01-05 2020-05-01 Oppo广东移动通信有限公司 Method and communication device for transmitting data
CN111092693B (en) * 2017-01-05 2021-03-09 Oppo广东移动通信有限公司 Method and communication device for transmitting data
US11489617B2 (en) 2017-01-05 2022-11-01 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Data transmission method and communication device
CN110661605A (en) * 2018-06-29 2020-01-07 普天信息技术有限公司 Method for determining downlink traffic channel TBS of sTTI system

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