CN110505690A - A kind of transmission method and system of downlink service data - Google Patents
A kind of transmission method and system of downlink service data Download PDFInfo
- Publication number
- CN110505690A CN110505690A CN201810468670.4A CN201810468670A CN110505690A CN 110505690 A CN110505690 A CN 110505690A CN 201810468670 A CN201810468670 A CN 201810468670A CN 110505690 A CN110505690 A CN 110505690A
- Authority
- CN
- China
- Prior art keywords
- dci
- pdsch
- service data
- downlink
- downlink service
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application discloses a kind of transmission method of downlink service data and systems, and wherein method includes: that base station, which determines, repeats transport-type, and the repetition transport-type is included in time domain and frequency domain is all repeated for downlink service data to be transmitted；The base station repeats transport-type according to described, using preset Downlink Control Information DCI format, generates DCI for the downlink service data；And when transmitting the downlink service data, the DCI is sent to corresponding UE；The UE carries out reception processing according to the DCI received, to the downlink service data, obtains the downlink service data.Using the present invention, propagation delay time can be reduced while improving transmission reliability.
Description
Technical field
The present invention relates to mobile communication technologies, more particularly to the transmission method and system of a kind of downlink service data.
Background technique
Ofdm system can have broadband transmittability, be mentioned with meeting the deep development of informatization of power industry
New demand out.The system can not only be supported to resident, industrial and commercial user and specially become the use of user (such as integrated mill)
Power information is acquired the power information capturing service with analysis, can also provide and support the life towards distribution scheduling and power distribution network
Produce the business such as power distribution automation and load management, emergency first-aid repair, maintenance and the mobile asset visualized management of commander.In these industry
In business, electric system is very high to the propagation delay time and reliability requirement of some business (such as power distribution automation business).In order to guarantee
The propagation delay time of these business is low, high reliablity purpose, needs to take ofdm system a series of measure
Guarantee the normal operation of power distribution network.
In the prior art, available bandwidth is divided into multiple subbands continuously or discontinuously by ofdm system,
Orthogonal frequency division multiplexing (OFDM) technical transmission is used on each subband.The typical application scenarios of the system are electric power load monitoring and control
Communication network, frequency spectrum are dispersedly distributed in 230M frequency range.Fig. 1 gives net 230MHz band frequency resource distribution signal
Figure, as can be seen from the figure its frequency spectrum is in pectination, if the frequency resource of the frequency range can be divided into a subband, the son of minimum frequency point
Band is 223.525MHz, and the subband of highest frequency point is 231.65MHz.
Sub-band division is synchronous subband and common sub-band according to function by ofdm system.Synchronous subband it is main
Function is synchronization and the broadcast channel of uplink and downlink, and common sub-band is used for the transmission of regular traffic.In view of reducing cost and realization
Complexity, user equipment (UE, UserEquipment) support multi-subband and list band operating mode, i.e. UE receiver bandwidth not
It must be whole system bandwidth, can support to receive multiple or single subband, not need centainly receive whole subbands.According to hard
The difference of part ability, UE support work on all or part of subband, wherein the UE of most simple (i.e. at low cost) is supported single
It works on subband.Furthermore, it is contemplated that the demand of coverage enhancement, ofdm system introduces the transmission of the repetition in time domain
Mechanism.For the system design of the mechanism, PCFICH channel is eliminated, PDCCH search space is allocated to UE by signaling message,
And the DCI carried on PDCCH channel supports to repeat to transmit in time domain, and transmission block is also supported to repeat to transmit in time domain.
In order to support coverage enhancement, PDCCH and PDSCH carries out repeating to transmit in the time domain coming in ofdm system
Cumlative energy.By the same data of continuous radio frame transmission and the method for unified feedback, it can be improved and be decoded into power, but
While improving reliability, propagation delay time is increased.In this way, this method can not meet low transmission in electric system well
The demand of the highly reliable business of time delay.For this reason, it may be necessary to research and solve scheme for the demand of this kind of business, while being also contemplated that simultaneous
Hold coverage enhancement scheme.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of transmission method of downlink service data and system, it can
To reduce propagation delay time while improving transmission reliability.
In order to achieve the above object, technical solution proposed by the present invention are as follows:
A kind of transmission method of downlink service data, comprising:
For downlink service data to be transmitted, base station, which determines, repeats transport-type, and the transport-type that repeats is included in
Time domain and frequency domain all repeat and/or only frequency domain repetition；
The base station repeats transport-type according to described, is the downlink using preset Downlink Control Information DCI format
Business datum generates DCI；And when transmitting the downlink service data, the DCI is sent to corresponding UE；
The UE carries out reception processing according to the DCI received, to the downlink service data, obtains the downlink
Business datum.
Preferably, the transport-type that repeats further comprises only time domain repetition.
Preferably, the DCI format is DCI format x.
Preferably, the DCI format includes: the starting subband Subband of downlink business resource allocationstart, lower industry
Be engaged in resource allocation number of sub-bands SubbandNUMPDSCH, PDSCH time domain number of repetition RepetitionNUMPDSCH_TD, PDSCH frequency
Domain number of repetition RepetitionNUMPDSCH_FD, modulation coding scheme MCS, single transmission block TB occupy radio frames number NF,
New data indicates NDI, the process number of downlink HARQ, timing adjustment TA and redundancy versions.
Preferably, the specified DCI format format length having the same in the DCI format and system；The DCI format
It further include the Flag field for being used to indicate DCI format type.
Preferably, the DCI for being sent to UE is the DCI by C-RNTI scrambling encapsulation.
Preferably, to the downlink service data carry out reception processing include:
When the UE in its exclusive search space blind examination to the DCI, and when successfully descrambling the DCI, according to the DCI
The information of carrying decodes the transmission block TB being carried on PDSCH, obtains the downlink service data, in all of the correspondence TB
After the completion of transmission is all received and handled, the UE feeds back a united ACK/NACK to base station.
Preferably, when carrying out receiving processing to the downlink service data, according to Determine the sub-band number for determining transport block size
IndexWherein, SubbandNUMPDSCHFor the DCI carry downlink business resource allocation number of sub-bands,
RepetitionNUMPDSCH_FDFor the PDSCH frequency domain number of repetition that the DCI is carried, Round () is the function that rounds up, max
{ } is maximizing function.
A kind of Transmission system of downlink service data, comprising:
Base station, for for downlink service data to be transmitted, base station to determine repetition transport-type, described to repeat transmission class
Type is included in time domain and frequency domain, and all repeatedly and/or only frequency domain repeats；Transport-type is repeated according to described, using preset downlink control
Information DCI format processed generates DCI for the downlink service data；And when transmitting the downlink service data, by the DCI
It is sent to corresponding user equipment (UE)；
UE, for carrying out reception processing to the downlink service data according to the DCI that receives, obtain it is described under
Row business datum.
Preferably, the transport-type that repeats further comprises only time domain repetition.
Preferably, the DCI format is DCI format x.
Preferably, the DCI format includes: the starting subband Subband of downlink business resource allocationstart, lower industry
Be engaged in resource allocation number of sub-bands SubbandNUMPDSCH, PDSCH time domain number of repetition RepetitionNUMPDSCH_TD, PDSCH frequency
Domain number of repetition RepetitionNUMPDSCH_FD, modulation coding scheme MCS, single transmission block TB occupy radio frames number NF,
New data indicates NDI, the process number of downlink HARQ, timing adjustment TA and redundancy versions.
Preferably, the specified DCI format format length having the same in the DCI format and system；The DCI format
It further include the Flag field for being used to indicate DCI format type.
Preferably, the DCI for being sent to UE is the DCI by C-RNTI scrambling encapsulation.
Preferably, the UE, includes: for carrying out reception processing to the downlink service data
When the UE in its exclusive search space blind examination to the DCI, and when successfully descrambling the DCI, according to the DCI
The information of carrying decodes the transmission block being carried on PDSCH, the downlink service data is obtained, in all biographies of the correspondence TB
After the completion of defeated all receptions and processing, the UE feeds back a united ACK/NACK to base station.
Preferably, the UE, when for carrying out receiving processing to the downlink service data, according toIt determines for determining transmission
The sub-band number of block size indexesWherein, SubbandNUMPDSCHThe downlink business resource allocation subband carried for the DCI
Number, RepetitionNUMPDSCH_FDFor the PDSCH frequency domain number of repetition that the DCI is carried, Round () is the letter that rounds up
Number, max { } are maximizing function.
In conclusion the transmission method and system of downlink service data proposed by the present invention, are passed by introducing new repetition
Defeated type all repeats in time domain and frequency domain and only frequency domain repeats, provide the redundant transmission in frequency, can effectively reduce single
Transmission block repeats the time-domain resource that transmission occupies, so as to reduce propagation delay time, in turn while improving transmission reliability
It can satisfy the transmission demand of the highly reliable business of low transmission time delay.
Detailed description of the invention
Fig. 1 is electric power load monitoring and control communication network 230MHz band frequency resource distribution schematic diagram.
Fig. 2 is the method flow schematic diagram of the embodiment of the present invention.
Fig. 3 is the system structure diagram of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, right below in conjunction with the accompanying drawings and the specific embodiments
The present invention is described in further detail.
Core of the invention thought is: using multiple subbands to the same transmission block (TB, TransmissionBlock) into
Row transmission, provides the redundant transmission in frequency, in this way, can reduce propagation delay time while improving transmission reliability.
Fig. 2 is the method flow schematic diagram of the embodiment of the present invention, as shown in Fig. 2, the downlink business number that the embodiment is realized
According to transmission method include:
Step 201, for downlink service data to be transmitted, base station, which determines, repeats transport-type, described to repeat transmission class
Type is included in time domain and frequency domain, and all repeatedly and/or only frequency domain repeats.
With existing system the difference is that increasing new repetition transport-type, i.e. time domain and frequency domain in the present embodiment all
It repeats and only frequency domain repeats, using these newly-increased repetition transport-types, can use multiple subbands and same transmission block is carried out
Transmission, provides the redundant transmission in frequency, in this way, passing through the redundant transmission in frequency, it is possible to reduce to the occupancy of time-domain resource,
So as to reduce propagation delay time while improving transmission reliability.
Preferably, those skilled in the art can require according to the corresponding service delay of downlink service data, described in determination
Repeat transport-type.For example, can choose only frequency repetition when service delay requires very high, when service delay requirement is medium
When horizontal, it can choose time domain and frequency domain all repeat.
Preferably, the transport-type that repeats can further include only time domain weight in order to mutually be compatible with existing system
It is multiple.
In practical applications, those skilled in the art can reliability requirement according to business datum and current channel matter
Amount, come when determining, the duplicate number of frequency domain.For example, number of repetition can be set when reliability requirement is high or bad channel quality
It is more, when reliability requirement is low or channel quality is good, number of repetition be can be set less.
Step 202, the base station repeat transport-type according to described, using preset Downlink Control Information (DCI) format,
DCI is generated for the downlink service data；And when transmitting the downlink service data, the DCI is sent to corresponding UE.
In this step, base station will encapsulate DCI by pre-set DCI format on PDCCH channel, and described in the transmission
When downlink service data, send by the DCI after mark scrambling encapsulation, so that UE demodulates the data on PDCSH.
Due to introducing new repetition transport-type in step 201, so that time domain will be no longer only limitted to by repeating transport-type
On repetition, quantity be it is multiple, therefore, introduce new DCI format here to encapsulate DCI, which is used to indicate support
The PDSCH scheduling information of time-frequency domain repetition transfer function.
Preferably, the DCI format is DCI format x.
Preferably, the DCI format includes: the starting subband Subband of downlink business resource allocationstart, lower industry
Be engaged in resource allocation number of sub-bands SubbandNUMPDSCH, PDSCH time domain number of repetition RepetitionNUMPDSCH_TD, PDSCH frequency
Domain number of repetition RepetitionNUMPDSCH_FD, modulation coding scheme MCS, single transmission block TB occupy radio frames number NF,
New data indicates NDI, the process number of downlink HARQ, timing adjustment TA and redundancy versions.
Wherein: SubbandstartIt is the starting subband number of downlink business resource allocation, SubbandNUMPDSCHIt is lower industry
PDSCH uses number of sub-bands, RepetitionNUM in resource allocation of being engaged inPDSCH_TDIt is the repetition time for indicating PDSCH in the time domain
Number, RepetitionNUMPDSCH_FDIt is the number of repetition for indicating the PDSCH on frequency domain, timing adjustment TA is that instruction transmission timing is adjusted
Whole, redundancy versions are the corresponding redundancy versions RV of instruction.Subscript TD is the abbreviation of time domain (Time Domain), and FD is frequency domain
The abbreviation of (Frequency Domain).
In order to make it easy to understand, the present invention provides the value range and length of each field in DCI format X by way of examples
Degree.
Originate subband SubbandstartLength be 9bits, value range is [0,479], come indicating downlink business money
The starting subband number of source distribution；Downlink business resource allocation number of sub-bands SubbandNUMPDSCHLength be 8bits, value model
[0,255] is enclosed, carrys out PDSCH in indicating downlink traffic resource assignment and uses number of sub-bands；PDSCH time domain number of repetition
RepetitionNUMPDSCH_TDLength be 3bits, corresponding value is { 1,2,4,8,16,32,64,128 }, to indicate in time domain
The number of repetition of upper PDSCH；PDSCH frequency domain number of repetition RepetitionNUMPDSCH_FDLength be 3bits, corresponding value is
{ 1,2,4,8,16,32,64,128 }, to indicate the number of repetition of the PDSCH on frequency domain；The length 3bits of MCS, instruction transmission
When modulation coding scheme, 8 kinds of MCS grades can be corresponded to；The length of NF is 3bits, the nothing that instruction single transmission block TB is occupied
Line frame number, corresponding value are { 1,2,3,4,5,6,7,8 }；New data indicates that the length of NDI is 1bit, is transmitted as the first time new
It passes, later if NDI invariant representation retransmits in transmission, NDI overturning indicates new data transmission；The length of HARQ process number is
1bit carrys out the process number { 0,1 } of indicating downlink HARQ；The length of timing adjustment TA is 2bits, instruction transmission timing adjustment index
Value, corresponding timing adjustment is determined according to the index value of instruction；The length of redundancy versions is 2bits, is that instruction is corresponding superfluous
Remaining version RV { 0,1,2,3 }.Above each field is 35bits in total, i.e. the length of DCI format X may be designed as 35bits.
In view of the blind examination complexity of UE, in order to reduce the blind examination number of UE, DCI format x can and be in the present embodiment
Specified DCI format format length having the same in system.On the basis of above-mentioned field, it can further increase and be used to indicate
The Flag field of DCI format type, such as the length of Flag field is 2bits, value 0 indicates uplink scheduling DCI format Y, takes
Value 1 indicates descending scheduling DCI format X, and value 2,3 is reserved.Meanwhile the reserved place of certain bit number can be increased, to guarantee not
It is identical with the length of DCI format.The specified DCI format specifically can be by those skilled in the art according to actual needs from system
It is selected in existing DCI format, for example, can be DCI lattice close with above-mentioned newly-increased DCI format X length in system
Formula.
Preferably, the DCI for being sent to UE is the DCI by C-RNTI scrambling encapsulation.
In practical applications, when transmitting downlink service data, the DCI can be sent to accordingly using following methods
UE:
DCI generated is scrambled by mark, obtains the DCI of scrambling encapsulation, sending in the exclusive search space the UE of PDCCH should
Scramble the DCI of encapsulation.
Wherein, described to be identified as C-RNTI.Specific method for scrambling includes: the school CRC with C-RNTI to the DCI after encapsulation
It tests information bit to be scrambled, obtains the DCI of scrambling encapsulation.
Step 203, the UE carry out reception processing to the downlink service data, obtain according to the DCI received
The downlink service data.
In practical applications, the downlink service data sent for base station, UE will attempt to connect from multiple subbands progress data
It receives.UE first monitors PDCCH channel according to the specified monitoring moment, in the exclusive search space blind examination DCI of the UE and uses C-RNTI
Descrambling DCI is carried on PDSCH further according to Downlink Control Information in the DCI in decoding if the UE successfully descrambles the DCI
TB block, to obtain the downlink service data of the UE.
Specifically, UE can carry out reception processing to the downlink service data using following methods:
When the UE in its exclusive search space blind examination to the DCI, and when successfully descrambling the DCI, according to the DCI
The information of carrying decodes the transmission block being carried on PDSCH, the downlink service data is obtained, in all biographies of the correspondence TB
After the completion of defeated all receptions and processing, the UE feeds back a united ACK/NACK to base station.
Specifically, according to the PDCCH configuration information of multi-subband, UE can determine the initial position of downlink business resource transmission
SFNstart, in conjunction with the Downlink Control Information of DCI format X, UE can determine the used time-frequency domain of service resources transmission
Resource location.Wherein, for frequency domain resource, according to SubbandstartAnd SubbandNUMPDSCHDetermine the specifically used son of PDSCH
Information；For time-domain resource, according to SFNstart, RepetitionNUMPDSCH_TDDetermine that PDSCH is specifically used wireless with NF
Frame information.According to RepetitionNUMPDSCH_TDAnd RepetitionNUMPDSCH_FDDetermine TB duplicate message on time-frequency domain.It is right
In same TB, TBSize size is indexed according to sub-band numberNF and MCS are by searching for Nsubb- MCS-NF-TBS mapping
Table determines.Wherein, sub-band number indexesIt can be calculated according to following formula:
Wherein, SubbandNUMPDSCHFor the DCI carry downlink business resource allocation number of sub-bands,
RepetitionNUMPDSCH_FDFor the PDSCH frequency domain number of repetition that the DCI is carried, Round () is the function that rounds up, max
{ } is maximizing function.
In addition, it is new data transmission or re-transmission that UE, which knows this transmission according to new data instruction NDI,.According to HARQ into
Journey number and redundancy version knew that this transmitted corresponding process and redundancy versions RV originally.According to timing adjustment TA, UE can be determined
Transmission timing adjustment values are simultaneously adjusted correspondingly.
Fig. 3 is a kind of Transmission system of downlink service data corresponding with above method embodiment, as shown, the system
It specifically includes that
Base station, for for downlink service data to be transmitted, base station to determine repetition transport-type, described to repeat transmission class
Type is included in time domain and frequency domain, and all repeatedly and/or only frequency domain repeats；Transport-type is repeated according to described, using preset downlink control
Information DCI format processed generates DCI for the downlink service data；And when transmitting the downlink service data, by the DCI
It is sent to corresponding user equipment (UE)；
UE, for carrying out reception processing to the downlink service data according to the DCI that receives, obtain it is described under
Row business datum.
Preferably, the transport-type that repeats further comprises only time domain repetition.
Preferably, the DCI format is DCI format x.
Preferably, the DCI format includes: the starting subband Subband of downlink business resource allocationstart, lower industry
Be engaged in resource allocation number of sub-bands SubbandNUMPDSCH, PDSCH time domain number of repetition RepetitionNUMPDSCH_TD, PDSCH frequency
Domain number of repetition RepetitionNUMPDSCH_FD, modulation coding scheme MCS, single transmission block TB occupy radio frames number NF,
New data indicates NDI, the process number of downlink HARQ, timing adjustment TA and redundancy versions.
Preferably, the specified DCI format format length having the same in the DCI format and system；The DCI format
It further include the Flag field for being used to indicate DCI format type.
Preferably, the DCI for being sent to UE is the DCI by C-RNTI scrambling encapsulation.
Preferably, the UE, includes: for carrying out reception processing to the downlink service data
When the UE in its exclusive search space blind examination to the DCI, and when successfully descrambling the DCI, according to the DCI
The information of carrying decodes the transmission block being carried on PDSCH, the downlink service data is obtained, in all biographies of the correspondence TB
After the completion of defeated all receptions and processing, the UE feeds back a united ACK/NACK to base station.
Preferably, the UE, when for carrying out receiving processing to the downlink service data, according toIt determines for determining transmission
The sub-band number of block size indexesWherein, SubbandNUMPDSCHThe downlink business resource allocation subband carried for the DCI
Number, RepetitionNUMPDSCH_FDFor the PDSCH frequency domain number of repetition that the DCI is carried, Round () is the letter that rounds up
Number, max { } are maximizing function.
It can be seen from above-described embodiment that realize that the high reliability under low time delay, the present invention utilize multiple subbands
The same transmission block is transmitted, the redundant transmission in frequency is provided.For downlink transfer, base station is simultaneously in multiple sons
Identical TB block is taken while sending, UE attempts to carry out data receiver from multiple subbands, all connects in all transmission of the corresponding TB
After the completion of receiving and handling, UE can send a united ACK/NACK and feed back to base station.In view of different business is in time delay and can
The different demand in property, the present invention realize the repetition transmission of downlink service data on time-frequency domain, and provide downlink and repeat to pass
Defeated indicating means.Therefore, using the present invention, single transmission block can be effectively reduced and repeat the time-domain resource that transmission occupies, from
And propagation delay time can be reduced while improving transmission reliability, and then can satisfy the highly reliable business of low transmission time delay
Transmission demand.
It should be noted that the invention be not limitedly applied to private electric power, as long as there is low transmission time delay high reliability business
The network of transmission demand is applicable in.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (16)
1. a kind of transmission method of downlink service data characterized by comprising
For downlink service data to be transmitted, base station, which determines, repeats transport-type, and the transport-type that repeats is included in time domain
It is all repeated with frequency domain and/or only frequency domain repeats；
The base station repeats transport-type according to described, is the downlink business using preset Downlink Control Information DCI format
Data generate DCI；And when transmitting the downlink service data, the DCI is sent to corresponding UE；
The UE carries out reception processing according to the DCI received, to the downlink service data, obtains the downlink business
Data.
2. the method according to claim 1, wherein the transport-type that repeats further comprises only time domain weight
It is multiple.
3. the method according to claim 1, wherein the DCI format is DCI format x.
4. the method according to claim 1, wherein the DCI format includes: rising for downlink business resource allocation
Beginning subband Subbandstart, downlink business resource allocation number of sub-bands SubbandNUMPDSCH, PDSCH time domain number of repetition
RepetitionNUMPDSCH_TD, PDSCH frequency domain number of repetition RepetitionNUMPDSCH_FD, it is modulation coding scheme MCS, single
Radio frames number NF, new data instruction NDI, the process number of downlink HARQ, timing adjustment TA and the redundancy version that transmission block TB is occupied
This.
5. the method according to claim 1, wherein the DCI format has with the specified DCI format in system
Identical format length；The DCI format further includes being used to indicate the Flag field of DCI format type.
6. the method according to claim 1, wherein the DCI for being sent to UE is to scramble to seal by C-RNTI
The DCI of dress.
7. the method according to claim 1, wherein to the downlink service data carry out reception processing include:
When the UE in its exclusive search space blind examination to the DCI, and when successfully descrambling the DCI, carried according to the DCI
Information decode the transmission block that is carried on PDSCH, obtain the downlink service data, the correspondence TB all transmission all
After the completion of receiving and handling, the UE feeds back a united ACK/NACK to base station.
8. the method according to claim 1, wherein being pressed when carrying out receiving processing to the downlink service data
According toIt determines and is passed for determining
The sub-band number of defeated block size indexesWherein, SubbandNUMPDSCHDownlink business resource allocation carried for the DCI
Band number, RepetitionNUMPDSCH_FDFor the PDSCH frequency domain number of repetition that the DCI is carried, Round () is to round up
Function, max { } are maximizing function.
9. a kind of Transmission system of downlink service data characterized by comprising
Base station, for for downlink service data to be transmitted, base station to determine repetition transport-type, described to repeat transport-type packet
It includes in time domain and frequency domain all repeats and/or only frequency domain repeats；Transport-type is repeated according to described, is controlled and is believed using preset downlink
DCI format is ceased, generates DCI for the downlink service data；And when transmitting the downlink service data, the DCI is sent
To corresponding user equipment (UE)；
UE, for carrying out reception processing to the downlink service data, obtaining the lower industry according to the DCI received
Business data.
10. system according to claim 9, which is characterized in that the transport-type that repeats further comprises only time domain weight
It is multiple.
11. system according to claim 9, which is characterized in that the DCI format is DCI format x.
12. system according to claim 9, which is characterized in that the DCI format includes: downlink business resource allocation
Originate subband Subbandstart, downlink business resource allocation number of sub-bands SubbandNUMPDSCH, PDSCH time domain number of repetition
RepetitionNUMPDSCH_TD, PDSCH frequency domain number of repetition RepetitionNUMPDSCH_FD, it is modulation coding scheme MCS, single
Radio frames number NF, new data instruction NDI, the process number of downlink HARQ, timing adjustment TA and the redundancy version that transmission block TB is occupied
This.
13. system according to claim 9, which is characterized in that the specified DCI format in the DCI format and system has
There is identical format length；The DCI format further includes being used to indicate the Flag field of DCI format type.
14. system according to claim 9, which is characterized in that the DCI for being sent to UE is to scramble to seal by C-RNTI
The DCI of dress.
15. system according to claim 9, which is characterized in that the UE, for being connect to the downlink service data
Receipts are handled
When the UE in its exclusive search space blind examination to the DCI, and when successfully descrambling the DCI, carried according to the DCI
Information decode the transmission block that is carried on PDSCH, obtain the downlink service data, the correspondence TB all transmission all
After the completion of receiving and handling, the UE feeds back a united ACK/NACK to base station.
16. system according to claim 9, which is characterized in that the UE, for being connect to the downlink service data
When receiving processing, according to Really
The fixed sub-band number for determining transport block size indexesWherein, SubbandNUMPDSCHThe lower industry carried for the DCI
Business resource allocation number of sub-bands, RepetitionNUMPDSCH_FDFor the PDSCH frequency domain number of repetition that the DCI is carried, Round
() is the function that rounds up, and max { } is maximizing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468670.4A CN110505690A (en) | 2018-05-16 | 2018-05-16 | A kind of transmission method and system of downlink service data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468670.4A CN110505690A (en) | 2018-05-16 | 2018-05-16 | A kind of transmission method and system of downlink service data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110505690A true CN110505690A (en) | 2019-11-26 |
Family
ID=68583807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810468670.4A Pending CN110505690A (en) | 2018-05-16 | 2018-05-16 | A kind of transmission method and system of downlink service data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110505690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114679790A (en) * | 2022-04-19 | 2022-06-28 | 中国电信股份有限公司 | Information transmission method and device and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932024A (en) * | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Downlink control information transmitting method and device |
| CN103795505A (en) * | 2012-11-02 | 2014-05-14 | 电信科学技术研究院 | Data transmission method, system and device |
| CN104160648A (en) * | 2013-02-07 | 2014-11-19 | 华为技术有限公司 | Data transmission method and device |
| WO2014187260A1 (en) * | 2013-09-27 | 2014-11-27 | 中兴通讯股份有限公司 | Method, device for sending/receiving public message and system |
| CN104349458A (en) * | 2013-08-08 | 2015-02-11 | 中兴通讯股份有限公司 | Control channel transmission method, transmission processing method, communication node and terminal |
| CN107241920A (en) * | 2015-03-11 | 2017-10-10 | 三星电子株式会社 | Resource allocation for the repetition transmission in communication system |
-
2018
- 2018-05-16 CN CN201810468670.4A patent/CN110505690A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932024A (en) * | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Downlink control information transmitting method and device |
| CN103795505A (en) * | 2012-11-02 | 2014-05-14 | 电信科学技术研究院 | Data transmission method, system and device |
| CN104160648A (en) * | 2013-02-07 | 2014-11-19 | 华为技术有限公司 | Data transmission method and device |
| CN104349458A (en) * | 2013-08-08 | 2015-02-11 | 中兴通讯股份有限公司 | Control channel transmission method, transmission processing method, communication node and terminal |
| WO2014187260A1 (en) * | 2013-09-27 | 2014-11-27 | 中兴通讯股份有限公司 | Method, device for sending/receiving public message and system |
| CN107241920A (en) * | 2015-03-11 | 2017-10-10 | 三星电子株式会社 | Resource allocation for the repetition transmission in communication system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114679790A (en) * | 2022-04-19 | 2022-06-28 | 中国电信股份有限公司 | Information transmission method and device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111247856B (en) | Side link Internet of vehicles communication method and user equipment thereof | |
| JP7091358B2 (en) | Systems and methods for multiplexing traffic | |
| CN109076524B (en) | System and method for unlicensed uplink traffic and grant-based uplink traffic coexistence | |
| CN110290592B (en) | Relay transmission method and user equipment | |
| US11483827B2 (en) | Systems and methods for self-contained air interface partitions | |
| JP6965925B2 (en) | Base station equipment, terminal equipment, wireless communication systems, and communication methods | |
| CN103841603B (en) | The method and apparatus of ascending grouping scheduling | |
| KR102616547B1 (en) | Method and apparatus for narrowband signal transmission in a wireless cellular communication system | |
| US11540257B2 (en) | Uplink control information transmission on autonomous uplink in new radio-unlicensed (NR-U) | |
| EP3764577A1 (en) | Telecommunications circuitry | |
| KR101622955B1 (en) | Apparatus and method for transmitting and receiving control information in multiple input multiple output system | |
| US11558851B2 (en) | Broadcast transmission by relay node | |
| US11863478B2 (en) | Base station, terminal, and communication method | |
| CN108882366A (en) | A kind of transmission method and device of Downlink Control Information DCI | |
| JPWO2018203389A1 (en) | Base station device, terminal device, wireless communication system, and wireless communication method | |
| EP3490181A1 (en) | Data transmission method and device | |
| CN110505690A (en) | A kind of transmission method and system of downlink service data | |
| CN103326756A (en) | Code transmitting method and system in orthogonal frequency division multiple access system | |
| CN117136516A (en) | Method and apparatus for uplink transmission in a wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191126 |