CN107295680A - Downlink data dispatching collocation method and system, base station and user equipment - Google Patents
Downlink data dispatching collocation method and system, base station and user equipment Download PDFInfo
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- CN107295680A CN107295680A CN201610203949.0A CN201610203949A CN107295680A CN 107295680 A CN107295680 A CN 107295680A CN 201610203949 A CN201610203949 A CN 201610203949A CN 107295680 A CN107295680 A CN 107295680A
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- time interval
- transmission time
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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
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- 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
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of downlink data dispatching collocation method and system, base station and user equipment.Methods described includes：Base station sends to user equipment and the sub-frame information that Transmission Time Interval is shortened in application is carried in radio resource control signaling, the radio resource control signaling, wherein, the length for shortening Transmission Time Interval is less than subframe lengths；The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows that the configuration information for shortening Transmission Time Interval in the subframe of Transmission Time Interval is shortened in each application；The user equipment is received in the subframe that Transmission Time Interval is shortened in the application according to the configuration information of the shortening Transmission Time Interval shortens descending control signaling.The present invention can support Transmission Time Interval to be less than the scheduling of subframe lengths, and the service of more short time-delay is provided for user equipment.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of downlink data dispatching collocation method and system,
Base station and user equipment.
Background technology
At present, in LTE (Long Term Evolution, Long Term Evolution) system, base station passes through in subframe
DCI (Downlink Control Information, down link control information) dispatching downlink data biography
Defeated and upstream data transmission.Each subframe scheduling once, TTI (Transmission Time Interval,
Transmission Time Interval) it is defined as a subframe lengths, i.e. 1ms.One subframe includes two time slots, each
Time slot 0.5ms, for normal CP (Cyclic Prefix, cyclic prefix), each time slot has 7 symbol
(symbol).DCI can be by PDCCH (Physical Downlink Control Channel, physical down control
Channel processed) send, can also by EPDCCH (Enhanced Physical Downlink Control Channel,
Strengthen Physical Downlink Control Channel) send.PDCCH is in the control area (control region) of descending sub frame
Transmission, wherein, the control area several OFDM (Orthogonal Frequency before descending sub frame
Division Multiplexing, OFDM) symbol compositions, usually 1 to 3 symbol,
It is distributed on whole downlink bandwidth (Band)；EPDCCH uses PDSCH (Physical Downlink Shared
Channel, Physical Downlink Shared Channel) resource, the PDSCH resources belong to data area (data region),
Generally only take up the sub-fraction of whole downlink bandwidth.
During the present invention is realized, inventor has found at least there is following technical problem in the prior art：
In existing LTE system, the scheduling that TTI is 1ms i.e. 14 symbol is only supported in base station, no
Support shorter TTI scheduling, it is impossible to provide more short time-delay for UE (User Equipment, user equipment)
Service.
The content of the invention
Downlink data dispatching collocation method and system, base station and user equipment that the present invention is provided, it would be preferable to support
Transmission Time Interval is less than the scheduling of subframe lengths, and the service of more short time-delay is provided for user equipment.
In a first aspect, the present invention provides a kind of downlink data dispatching collocation method, including：
Base station sends to carry in radio resource control signaling, the radio resource control signaling to user equipment and answered
With shorten Transmission Time Interval sub-frame information, wherein, it is described shorten Transmission Time Interval length be less than son
Frame length；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shorten the configuration information of Transmission Time Interval in the subframe of short transmission time interval；
When the user equipment is transmitted in the subframe that Transmission Time Interval is shortened in the application according to the shortening
Between the configuration information that is spaced receive and shorten descending control signaling.
Optionally, the user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows
Shortening the configuration information of Transmission Time Interval in the subframe of each application shortening Transmission Time Interval includes：It is described to use
Family equipment shortens the sub-frame information of Transmission Time Interval, and base station and the user equipment according to the application
The length for the shortening Transmission Time Interval made an appointment, knows in the subframe that Transmission Time Interval is shortened in each application
Shorten the length and number of Transmission Time Interval.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Number；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to the sub-frame information of application shortening Transmission Time Interval, the shortening transmission time of the user equipment applications
For the shortening Transmission Time Interval that the subframe that Transmission Time Interval is shortened in the length at interval and/or application includes
Number, knows that the length and number for shortening Transmission Time Interval in the subframe of Transmission Time Interval are shortened in each application.
Optionally, the user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows
Shortening the configuration information of Transmission Time Interval in the subframe of each application shortening Transmission Time Interval includes：It is described to use
Family equipment shortens Physical Downlink Control Channel in the sub-frame information of Transmission Time Interval, subframe according to the application
The length for the shortening Transmission Time Interval that shared symbol number and base station are made an appointment with the user equipment
Degree, determine each application shorten the length for shortening Transmission Time Interval in the subframe of Transmission Time Interval, number with
And each original position for shortening Transmission Time Interval.
Optionally, the starting for shortening Transmission Time Interval in subframe is also carried in the radio resource control signaling
Position；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to for shortening Transmission Time Interval in the sub-frame information of application shortening Transmission Time Interval, the subframe
Beginning the position and length of shortening Transmission Time Interval made an appointment of base station and the user equipment, it is determined that respectively
Using the length, number and each shortening for shortening Transmission Time Interval in the subframe for shortening Transmission Time Interval
The original position of Transmission Time Interval.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Number；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to shared by Physical Downlink Control Channel in the sub-frame information of application shortening Transmission Time Interval, subframe
Biography is shortened in symbol number, and the length for shortening Transmission Time Interval of the user equipment applications and/or application
The number for the shortening Transmission Time Interval that the subframe of defeated time interval includes, when determining that transmission is shortened in each application
Between shorten the length of Transmission Time Interval, number and each Transmission Time Interval that shortens in the subframe that is spaced
Original position.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Shorten the original position of Transmission Time Interval in number and subframe；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to for shortening Transmission Time Interval in the sub-frame information of application shortening Transmission Time Interval, the subframe
Beginning position and the user equipment applications shortening Transmission Time Interval length and/or application shorten transmission when
Between the number of shortening Transmission Time Interval that includes of the subframe that is spaced, determine that each application is shortened between transmission time
Every subframe in shorten the length of Transmission Time Interval, number and each starting for shortening Transmission Time Interval
Position.
Optionally, the time slot letter that Transmission Time Interval is shortened in application is also carried in the radio resource control signaling
Breath, the gap information that Transmission Time Interval is shortened in the application indicates that Transmission Time Interval is shortened in the application
Transmission Time Interval is shortened in which time slot application in subframe；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
Shorten the sub-frame information of Transmission Time Interval according to the application and the time slot of Transmission Time Interval is shortened in the application
Information, knows that shortening Transmission Time Interval of the subframe of Transmission Time Interval on specific time slot is shortened in each application
Configuration information.
Second aspect, the present invention provides a kind of base station, including：
Transmitting element, for sending radio resource control signaling, the wireless heterogeneous networks letter to user equipment
The sub-frame information that Transmission Time Interval is shortened in application is carried in order, wherein, the shortening Transmission Time Interval
Length is less than subframe lengths.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Number.
Optionally, the starting for shortening Transmission Time Interval in subframe is also carried in the radio resource control signaling
Position.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Shorten the original position of Transmission Time Interval in number and subframe.
Optionally, the time slot letter that Transmission Time Interval is shortened in application is also carried in the radio resource control signaling
Breath, the gap information that Transmission Time Interval is shortened in the application indicates that Transmission Time Interval is shortened in the application
Transmission Time Interval is shortened in which time slot application in subframe.
The third aspect, the present invention provides a kind of user equipment, including：
First receiving unit, the radio resource control signaling for receiving base station transmission, the Radio Resource control
The sub-frame information that Transmission Time Interval is shortened in application is carried in signaling processed, wherein, between the shortening transmission time
Every length be less than subframe lengths；
Know unit, the sub-frame information for shortening Transmission Time Interval according to the application knows each application
Shorten the configuration information for shortening Transmission Time Interval in the subframe of Transmission Time Interval；
Second receiving unit, for shortening in the subframe that Transmission Time Interval is shortened in the application according to described
The configuration information of Transmission Time Interval, which is received, shortens descending control signaling.
Optionally, it is described to know unit, the sub-frame information for shortening Transmission Time Interval according to the application,
And the length for shortening Transmission Time Interval that base station is made an appointment with the user equipment, know each application contracting
Shorten the length and number of Transmission Time Interval in the subframe of short transmission time interval.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Number；
It is described to know unit, for the sub-frame information for shortening Transmission Time Interval according to the application, the use
The length of the shortening Transmission Time Interval of family equipment application and/or application are shortened wraps in the subframe of Transmission Time Interval
The number of the shortening Transmission Time Interval included, knows that each application is shortened to shorten in the subframe of Transmission Time Interval and passes
The length and number of defeated time interval.
Optionally, it is described to know unit, for according to the application shorten Transmission Time Interval sub-frame information,
Symbol number and base station in subframe shared by Physical Downlink Control Channel are made an appointment with the user equipment
Shortening Transmission Time Interval length, determine that each application is shortened in the subframe of Transmission Time Interval and shorten transmission
Length, number and each original position for shortening Transmission Time Interval of time interval.
Optionally, the starting for shortening Transmission Time Interval in subframe is also carried in the radio resource control signaling
Position；
It is described to know unit, sub-frame information, the son for shortening Transmission Time Interval according to the application
The original position and base station for shortening Transmission Time Interval in frame are passed with the shortening that the user equipment is made an appointment
The length of defeated time interval, determines that each application is shortened in the subframe of Transmission Time Interval and shortens Transmission Time Interval
Length, number and each original position for shortening Transmission Time Interval.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Number；
It is described to know unit, in the sub-frame information according to application shortening Transmission Time Interval, subframe
Symbol number shared by Physical Downlink Control Channel, and the user equipment applications shortening transmission time
For the shortening Transmission Time Interval that the subframe that Transmission Time Interval is shortened in the length at interval and/or application includes
Number, determine each application shorten the length for shortening Transmission Time Interval in the subframe of Transmission Time Interval, number with
And each original position for shortening Transmission Time Interval.
Optionally, when the shortening transmission of the user equipment applications is also carried in the radio resource control signaling
Between the length that is spaced and/or application shorten the shortening Transmission Time Interval that the subframe of Transmission Time Interval includes
Shorten the original position of Transmission Time Interval in number and subframe；
It is described to know unit, sub-frame information, the son for shortening Transmission Time Interval according to the application
Shorten the original position of Transmission Time Interval and the shortening Transmission Time Interval of the user equipment applications in frame
Length and/or application shorten Transmission Time Interval subframe include shortening Transmission Time Interval number,
Determine that the length for shortening Transmission Time Interval in the subframe of Transmission Time Interval, number and every are shortened in each application
The individual original position for shortening Transmission Time Interval.
Optionally, the time slot letter that Transmission Time Interval is shortened in application is also carried in the radio resource control signaling
Breath, the gap information that Transmission Time Interval is shortened in the application indicates that Transmission Time Interval is shortened in the application
Transmission Time Interval is shortened in which time slot application in subframe；
It is described to know unit, for according to the application shorten Transmission Time Interval sub-frame information and it is described should
With the gap information for shortening Transmission Time Interval, know that each application shortens the subframe of Transmission Time Interval specific
The configuration information of shortening Transmission Time Interval on time slot.
Fourth aspect, the present invention provides a kind of downlink data dispatching configuration system, including base station and user equipment；
The base station, for sending radio resource control signaling, the wireless heterogeneous networks letter to user equipment
The sub-frame information that Transmission Time Interval is shortened in application is carried in order, wherein, the shortening Transmission Time Interval
Length is less than subframe lengths；
The user equipment, the sub-frame information for shortening Transmission Time Interval according to the application is known each
Using the configuration information for shortening Transmission Time Interval in the subframe for shortening Transmission Time Interval, and in the application
Shorten under shortening in the subframe of Transmission Time Interval according to the configuration information reception of the shortening Transmission Time Interval
Row control signaling.
Downlink data dispatching collocation method and system, base station and user equipment provided in an embodiment of the present invention, energy
Enough support Transmission Time Interval to be less than the scheduling of subframe lengths, the service of more short time-delay be provided for user equipment,
The scheduling that existing Transmission Time Interval is equal to subframe lengths is adapted to simultaneously, it is to avoid shorten physical down control letter
Interference between road and multimedia broadcast multicast service business.It can cause packet using Transmission Time Interval is shortened
The new biography or number of retransmissions of data are increased, and realize more preferable block error rate target, so as to improve radio chains
The utilization ratio and throughput on road.
Brief description of the drawings
Fig. 1 is the flow chart of downlink data dispatching collocation method provided in an embodiment of the present invention；
Fig. 2, Fig. 3 are the schematic diagram that STTI provided in an embodiment of the present invention configures composition；
Fig. 4 is the structural representation of base station provided in an embodiment of the present invention；
Fig. 5 is the structural representation of user equipment provided in an embodiment of the present invention；
Fig. 6 is the structural representation that downlink data dispatching provided in an embodiment of the present invention configures system.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the institute that those of ordinary skill in the art are obtained under the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of downlink data dispatching collocation method, as shown in figure 1, methods described includes：
S11, base station send RRC (Radio Resource Control, wireless heterogeneous networks) to user equipment
In signaling, the RRC signaling carry application STTI (Shortened Transmission Time Interval,
Shorten Transmission Time Interval) sub-frame information, wherein, the length of the STTI is less than subframe lengths；
Wherein, the sub-frame information of the application STTI indicates whether each subframe applies STTI.
Wherein, the length of the STTI can be 2 symbol, 4 symbol and 7 symbol,
But it is not limited only to this.
S12, the user equipment according to the sub-frame information of the application STTI, know each application STTI
STTI configuration information in frame.
Wherein, the configuration information of the STTI can include STTI length and number, or can also wrap
Include each STTI original position.
S13, the user equipment connect in the subframe of the application STTI according to the configuration information of the STTI
Shrink short descending control signaling.
Downlink data dispatching collocation method provided in an embodiment of the present invention, user equipment can be sent according to base station
RRC signaling in the application STTI sub-frame information that carries, know STTI in each application STTI subframe
Configuration information, realize Transmission Time Interval be less than subframe lengths scheduling, while when being adapted to existing transmission
Between interval equal to subframe lengths scheduling, it is to avoid shorten Physical Downlink Control Channel and multimedia broadcasting and multicast clothes
Interference between business business.The new biography or number of retransmissions that can cause grouped data using STTI are increased, real
Existing more preferable block error rate target, so as to improve the utilization ratio and throughput of Radio Link.
Optionally, the user equipment knows each application STTI according to the sub-frame information of the application STTI
Subframe in STTI configuration information include：The user equipment according to the sub-frame information of the application STTI,
And the STTI length that base station and the user equipment are made an appointment, in the subframe for knowing each application STTI
STTI length and number.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
The STTI included with STTI subframe number；
The user equipment is according to the sub-frame information of the application STTI, in the subframe for knowing each application STTI
STTI configuration information includes：Sub-frame information of the user equipment according to the application STTI, the use
The number for the STTI that the STTI of family equipment application length and/or application STTI subframe include, knows
STTI length and number in each application STTI subframe.
Wherein, the STTI of user equipment applications length and/or application STTI subframe include
STTI number can respectively be set according to the sub-frame information.
That is, for each application STTI subframe, its STTI applied length and/or application
The number for the STTI that STTI subframe includes can be set respectively, be set to identical or different.
Specifically, it is made up of using STTI sub-frame information a string length for L Bit String, L length is variable,
Such as configuration L=20 bits or L=40 bits.Leftmost first bit correspondence NSFNNo. #0
Subframe, NSFNMeet formula NSFNMod X=0, wherein, NSFNFor the System Frame Number of serving cell, X be than
Multiple after special string length L divided by 10.If bit value is 1, represent that corresponding subframe has STTI
Configuration；Otherwise represent that corresponding subframe is configured in the absence of STTI.In fact, formula NSFNMod X=0 are unique
System-frame, the original position of subframe and configuration cycle where determining STTI.According to each bit in Bit String
Value, UE can determine the corresponding subframe of the bit whether apply STTI.
Wherein, the STTI of UE applications length can be carried in the RRC signaling, using STTI
STTI two information of number for including of subframe at least one, on condition that UE believes according to RRC
The information carried in order can directly determine the time domain parameter configuration of each application STTI subframe.That is,
If one of them in two information is only carried in RRC signaling, UE can directly determine each application
The time domain parameter configuration of STTI subframe, then can only carry its in two information in the RRC signaling
In one；If one of them in two information is only carried in RRC signaling, UE can not be determined directly
Go out the time domain parameter configuration of each application STTI subframe, then need to carry this two letters in the RRC signaling
Whole in breath.
The STTI for the UE applications that UE is carried in RRC signaling is received length and/or application STTI
After the number for the STTI that frame includes, in application STTI subframe parsing STTI configuration composition.
For example, if the STTI of the UE applications carried in RRC signaling length is 2 symbol, 4
Symbol and 7 symbol, the STTI included using STTI subframe number are 2, due to
PDCCH takes 1 to 3 OFDM symbol of control area, then as shown in Fig. 2 UE can be determined
It is configured to (4,7) using the time domain parameter of STTI subframe；
If the STTI of the UE applications carried in RRC signaling length is 2 symbol, 4 symbol
With 7 symbol, the STTI included using STTI subframe number is 3, then as shown in figure 3,
UE can determine that the time domain parameter of the subframe using STTI is configured to (2,2,7).
And then, UE will be also detected by STTI in application STTI subframe in addition to detecting PDCCH
(Shortened Physical Downlink Control Channel shorten physical down to the SPDCCH of scheduling
Control channel)；In STTI subframe is not applied, PDCCH is detected.
Optionally, the user equipment knows each application STTI according to the sub-frame information of the application STTI
Subframe in STTI configuration information include：The user equipment according to the sub-frame information of the application STTI,
Symbol number and base station in subframe shared by Physical Downlink Control Channel are made an appointment with the user equipment
STTI length, determine STTI length, number and each STTI in each application STTI subframe
Original position.
Specifically, symbol numbers of the UE in application STTI subframe shared by detection PDCCH, so
The STTI that symbol numbers and base station afterwards according to shared by PDCCH is made an appointment with the user equipment
Length, determine the start bit of STTI length, number and each STTI in each application STTI subframe
Put.
For example：If UE detects PDCCH in some subframe using STTI and takes 2 symbol,
The length for the STTI that base station is made an appointment with the user equipment is 4, then UE can determine in the subframe
STTI configuration groups turn into (4,4,4), the original position of each subframe is respectively the 3rd symbol, the 7th
Individual symbol, the 11st symbol.
Optionally, the original position of STTI in subframe is also carried in the RRC signaling；
The user equipment is according to the sub-frame information of the application STTI, in the subframe for knowing each application STTI
STTI configuration information includes：Sub-frame information, the son of the user equipment according to the application STTI
The length for the STTI that STTI original position and base station are made an appointment with the user equipment in frame, it is determined that
The original position of STTI length, number and each STTI in each application STTI subframe.
For example：If STTI original position is the 3rd symbol, base station and the user equipment in subframe
The STTI made an appointment length is 4, then UE can determine STTI configuration groups in the subframe turn into (4,
4,4), the original position of each subframe is respectively the 3rd symbol, the 7th symbol, the 11st symbol.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
The STTI included with STTI subframe number；
The user equipment is according to the sub-frame information of the application STTI, in the subframe for knowing each application STTI
STTI configuration information includes：The user equipment is according in the sub-frame information of the application STTI, subframe
Symbol number shared by Physical Downlink Control Channel, and the user equipment applications STTI length and
/ or application STTI the STTI number that includes of subframe, determine STTI in each application STTI subframe
Length, number and each STTI original position.
For example：If UE detects PDCCH in some subframe using STTI and takes 3 symbol,
The STTI of UE applications length is 2 symbol, 4 symbol and 7 symbol；If STTI's
Number is 2, then UE can determine that the STTI configuration groups in the subframe turn into (4,7), of each subframe
Beginning, position was respectively the 4th symbol, the 8th symbol；If STTI number is 3, then UE energy
Enough determine that the STTI configuration groups in the subframe turn into (2,2,7), the original position of each subframe is respectively the 4th
Individual symbol, the 6th symbol, the 8th symbol.
If UE detects PDCCH in some subframe using STTI and takes 2 symbol, UE
The STTI of application length is 2 symbol, 4 symbol and 7 symbol；If STTI number
For 3, then UE can determine that the STTI configuration groups in the subframe turn into (4,4,4), of each subframe
Beginning, position was respectively the 3rd symbol, the 7th symbol, the 11st symbol；If STTI number
For 4, then UE can determine that the STTI configuration groups in the subframe turn into (2,2,4,4), each subframe
Original position is respectively the 3rd symbol, the 5th symbol, the 7th symbol, the 11st symbol.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
STTI original position in the STTI included with STTI subframe number and subframe；
The user equipment is according to the sub-frame information of the application STTI, in the subframe for knowing each application STTI
STTI configuration information includes：Sub-frame information, the son of the user equipment according to the application STTI
The STTI of STTI original position and user equipment applications length and/or application STTI in frame
The number for the STTI that subframe includes, determine STTI length in each application STTI subframe, number and
Each STTI original position.
For example：If STTI original position is the 4th symbol in subframe, the STTI's of UE applications
Length is 2 symbol, 4 symbol and 7 symbol；If STTI number is 2, then UE
It can determine that the STTI configuration groups in the subframe turn into (4,7), the original position of each subframe is respectively the 4th
Individual symbol, the 8th symbol；If STTI number is 3, then UE can determine in the subframe
STTI configuration groups turn into (2,2,7), the original position of each subframe be respectively the 4th symbol, the 6th
Symbol, the 8th symbol.
If STTI original position is the 3rd symbol in subframe, the STTI of UE applications length is 2
Individual symbol, 4 symbol and 7 symbol；If STTI number is 3, then UE can determine
STTI configuration groups in the subframe turn into (4,4,4), the original position of each subframe be respectively the 3rd symbol,
7th symbol, the 11st symbol；If STTI number is 4, then UE can determine the son
STTI configuration groups on frame turn into (2,2,4,4), the original position of each subframe be respectively the 3rd symbol,
5th symbol, the 7th symbol, the 11st symbol.
Optionally, application STTI gap information, the application STTI are also carried in the RRC signaling
Gap information which time slot application STTI in the subframe of the application STTI indicated；
The user equipment is according to the sub-frame information of the application STTI, in the subframe for knowing each application STTI
STTI configuration information includes：The user equipment according to the sub-frame information of the application STTI and it is described should
With STTI gap information, STTI of each application STTI subframe on specific time slot configuration information is known.
Specifically, UE is according to the sub-frame information of the application STTI, the gap information of the application STTI,
It is determined that some time slot application STTI of some specific subframe, then, pre- further according to base station and the user equipment
Symbol number, RRC signaling in the STTI first arranged length, subframe shared by Physical Downlink Control Channel
The STTI of the user equipment applications of middle carrying length, the STTI included using STTI subframe
Number, one or more of STTI original position information in subframe, it is determined that the STTI on the time slot
Configuration information.
And then, UE detects the shortening descending control signaling dispatched in STTI in application STTI time slot.
It should be noted that the configuration in the downlink data dispatching collocation method that the present embodiment is provided on STTI
Subframe, is required for avoiding MBSFN (Multicast Broadcast Single Frequency Network, multicast
Broadcast Single Frequency Network) subframe, it is to avoid SPDCCH and MBMS (Multimedia Broadcast Multicast
Service, multimedia broadcast multicast services) interference between business.If there is conflict in configuration, can be about
The configuration preference level for determining SPDCCH is higher than the configuration preference level of MBSFN sub-frame, and UE is needed corresponding son
Frame is decoded as there is STTI configurations.
The embodiment of the present invention also provides a kind of base station, as shown in figure 4, the base station includes：
Transmitting element 41, application is carried for being sent to user equipment in RRC signaling, the RRC signaling
STTI sub-frame information, wherein, the length of the STTI is less than subframe lengths.
Wherein, the sub-frame information of the application STTI indicates whether each subframe applies STTI.
Wherein, the length of the STTI can be 2 symbol, 4 symbol and 7 symbol,
But it is not limited only to this.
Base station provided in an embodiment of the present invention, the sub-frame information for carrying application STTI is sent to user equipment, with
User equipment is determined therefrom that the configuration information of STTI in each application STTI subframe, realize between transmission time
Every the scheduling less than subframe lengths, while the scheduling that existing Transmission Time Interval is equal to subframe lengths is adapted to,
Avoid shortening the interference between Physical Downlink Control Channel and multimedia broadcast multicast service business.Can using STTI
So that obtaining the new biography or number of retransmissions of grouped data is increased, more preferable block error rate target is realized, so that
Improve the utilization ratio and throughput of Radio Link.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
The STTI included with STTI subframe number.
Optionally, the original position of STTI in subframe is also carried in the RRC signaling.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
STTI original position in the STTI included with STTI subframe number and subframe.
Optionally, the time slot letter that Transmission Time Interval is shortened in application is also carried in the radio resource control signaling
Breath, the gap information that Transmission Time Interval is shortened in the application indicates that Transmission Time Interval is shortened in the application
Transmission Time Interval is shortened in which time slot application in subframe.
The embodiment of the present invention also provides a kind of user equipment, as shown in figure 5, the user equipment includes：
Carried in first receiving unit 51, the RRC signaling for receiving base station transmission, the RRC signaling
Using STTI sub-frame information, wherein, the length of the STTI is less than subframe lengths；
Wherein, the sub-frame information of the application STTI indicates whether each subframe applies STTI.
Wherein, the length of the STTI can be 2 symbol, 4 symbol and 7 symbol,
But it is not limited only to this.
Know unit 52, for the sub-frame information according to the application STTI, know each application STTI
STTI configuration information in frame；
Wherein, the configuration information of the STTI can include STTI length and number, or can also wrap
Include each STTI original position.
Second receiving unit 53, for matching somebody with somebody confidence according to the STTI in the subframe of the application STTI
Breath, which is received, shortens descending control signaling.
What is carried in user equipment provided in an embodiment of the present invention, the RRC signaling that can be sent according to base station should
With STTI sub-frame information, the configuration information of STTI in each application STTI subframe is known, when realizing transmission
Between interval less than subframe lengths scheduling, while be adapted to existing Transmission Time Interval be equal to subframe lengths tune
Degree, it is to avoid shorten the interference between Physical Downlink Control Channel and multimedia broadcast multicast service business.Utilize STTI
The new biography or number of retransmissions of grouped data, which can be caused, to be increased, and realizes more preferable block error rate target, from
And improve the utilization ratio and throughput of Radio Link.
Optionally, it is described to know unit 52, for the sub-frame information according to the application STTI, and base station
The STTI made an appointment with the user equipment length, knows the length of STTI in each application STTI subframe
Degree and number.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
The STTI included with STTI subframe number；
It is described to know unit 52, for the sub-frame information according to the application STTI, the user equipment applications
STTI length and/or the STTI number that includes of application STTI subframe, know each application STTI
Subframe in STTI length and number.
Optionally, it is described to know unit 52, in the sub-frame information according to the application STTI, subframe
The length for the STTI that symbol number and base station shared by PDCCH are made an appointment with the user equipment,
Determine the original position of STTI length, number and each STTI in each application STTI subframe.
Optionally, the original position of STTI in subframe is also carried in the RRC signaling；
It is described to know unit 52, for STTI in the sub-frame information according to the application STTI, the subframe
Original position and the STTI length made an appointment of base station and the user equipment, determine each application STTI
Subframe in STTI length, number and each STTI original position.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
The STTI included with STTI subframe number；
It is described to know unit 52, for PDCCH institutes in the sub-frame information according to the application STTI, subframe
The symbol number of occupancy, and the user equipment applications STTI length and/or application STTI subframe
The STTI included number, determines STTI length in each application STTI subframe, number and each
STTI original position.
Optionally, the STTI of user equipment applications length is also carried in the RRC signaling and/or is answered
STTI original position in the STTI included with STTI subframe number and subframe；
It is described to know unit 52, for STTI in the sub-frame information according to the application STTI, the subframe
Original position and the user equipment applications STTI length and/or application STTI subframe include
STTI number, determine STTI length, number and each STTI in each application STTI subframe
Original position.
Optionally, application STTI gap information, the application STTI are also carried in the RRC signaling
Gap information which time slot application STTI in the subframe of the application STTI indicated；
It is described to know unit 52, for the sub-frame information according to the application STTI and the application STTI
Gap information, knows STTI of each application STTI subframe on specific time slot configuration information.
The embodiment of the present invention also provides a kind of downlink data dispatching configuration system, as shown in fig. 6, the system
Including base station 61 and user equipment 62；
The base station 61, is answered for sending to carry in RRC signaling, the RRC signaling to user equipment 61
With STTI sub-frame information, wherein, the length of the STTI is less than subframe lengths；
Wherein, the sub-frame information of the application STTI indicates whether each subframe applies STTI.
Wherein, the length of the STTI can be 2 symbol, 4 symbol and 7 symbol,
But it is not limited only to this.
The user equipment 62, for the sub-frame information according to the application STTI, knows each application STTI
Subframe in STTI configuration information, and the configuration in the subframe of the application STTI according to the STTI
Information, which is received, shortens descending control signaling.
Wherein, the configuration information of the STTI can include STTI length and number, or can also wrap
Include each STTI original position.
Downlink data dispatching provided in an embodiment of the present invention configures system, and user equipment is sent according to base station
The application STTI carried in RRC signaling sub-frame information, knows STTI in each application STTI subframe
Configuration information, realizes that Transmission Time Interval is less than the scheduling of subframe lengths, while being adapted to existing transmission time
Scheduling of the interval equal to subframe lengths, it is to avoid shorten Physical Downlink Control Channel and multimedia broadcast multicast services
Interference between business.The new biography or number of retransmissions that can cause grouped data using STTI are increased, and are realized
More preferable block error rate target, so as to improve the utilization ratio and throughput of Radio Link.
Downlink data dispatching collocation method and system, base station and user equipment provided in an embodiment of the present invention, are fitted
For LTE system, but it is not limited only to this.
One of ordinary skill in the art will appreciate that all or part of flow in above-described embodiment method is realized,
It can be by computer program to instruct the hardware of correlation to complete, described program can be stored in a calculating
In machine read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Wherein, described storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory,
) or random access memory (Random Access Memory, RAM) etc. ROM.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, can readily occur in
Change or replacement, should all be included within the scope of the present invention.Therefore, protection scope of the present invention
It should be defined by scope of the claims.
Claims (22)
1. a kind of downlink data dispatching collocation method, it is characterised in that including：
Base station sends to carry in radio resource control signaling, the radio resource control signaling to user equipment and answered
With shorten Transmission Time Interval sub-frame information, wherein, it is described shorten Transmission Time Interval length be less than son
Frame length；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shorten the configuration information of Transmission Time Interval in the subframe of short transmission time interval；
When the user equipment is transmitted in the subframe that Transmission Time Interval is shortened in the application according to the shortening
Between the configuration information that is spaced receive and shorten descending control signaling.
2. according to the method described in claim 1, it is characterised in that the user equipment is according to the application
Shorten the sub-frame information of Transmission Time Interval, know that each application is shortened to shorten in the subframe of Transmission Time Interval and pass
The configuration information of defeated time interval includes：The user equipment shortens Transmission Time Interval according to the application
Sub-frame information, and the length for shortening Transmission Time Interval that base station is made an appointment with the user equipment, are obtained
Know that the length and number for shortening Transmission Time Interval in the subframe of Transmission Time Interval are shortened in each application.
3. according to the method described in claim 1, it is characterised in that in the radio resource control signaling also
The length and/or application for carrying the shortening Transmission Time Interval of the user equipment applications shorten Transmission Time Interval
Subframe include shortening Transmission Time Interval number；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to the sub-frame information of application shortening Transmission Time Interval, the shortening transmission time of the user equipment applications
For the shortening Transmission Time Interval that the subframe that Transmission Time Interval is shortened in the length at interval and/or application includes
Number, knows that the length and number for shortening Transmission Time Interval in the subframe of Transmission Time Interval are shortened in each application.
4. according to the method described in claim 1, it is characterised in that the user equipment is according to the application
Shorten the sub-frame information of Transmission Time Interval, know that each application is shortened to shorten in the subframe of Transmission Time Interval and pass
The configuration information of defeated time interval includes：The user equipment shortens Transmission Time Interval according to the application
Symbol number and base station in sub-frame information, subframe shared by Physical Downlink Control Channel are set with the user
The length of the standby shortening Transmission Time Interval made an appointment, determines that the subframe of Transmission Time Interval is shortened in each application
The middle length for shortening Transmission Time Interval, number and each original position for shortening Transmission Time Interval.
5. according to the method described in claim 1, it is characterised in that in the radio resource control signaling also
Carry the original position for shortening Transmission Time Interval in subframe；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to for shortening Transmission Time Interval in the sub-frame information of application shortening Transmission Time Interval, the subframe
Beginning the position and length of shortening Transmission Time Interval made an appointment of base station and the user equipment, it is determined that respectively
Using the length, number and each shortening for shortening Transmission Time Interval in the subframe for shortening Transmission Time Interval
The original position of Transmission Time Interval.
6. according to the method described in claim 1, it is characterised in that in the radio resource control signaling also
The length and/or application for carrying the shortening Transmission Time Interval of the user equipment applications shorten Transmission Time Interval
Subframe include shortening Transmission Time Interval number；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to shared by Physical Downlink Control Channel in the sub-frame information of application shortening Transmission Time Interval, subframe
Biography is shortened in symbol number, and the length for shortening Transmission Time Interval of the user equipment applications and/or application
The number for the shortening Transmission Time Interval that the subframe of defeated time interval includes, when determining that transmission is shortened in each application
Between shorten the length of Transmission Time Interval, number and each Transmission Time Interval that shortens in the subframe that is spaced
Original position.
7. according to the method described in claim 1, it is characterised in that in the radio resource control signaling also
The length and/or application for carrying the shortening Transmission Time Interval of the user equipment applications shorten Transmission Time Interval
Subframe include shortening Transmission Time Interval number and subframe in shorten Transmission Time Interval starting
Position；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
According to for shortening Transmission Time Interval in the sub-frame information of application shortening Transmission Time Interval, the subframe
Beginning position and the user equipment applications shortening Transmission Time Interval length and/or application shorten transmission when
Between the number of shortening Transmission Time Interval that includes of the subframe that is spaced, determine that each application is shortened between transmission time
Every subframe in shorten the length of Transmission Time Interval, number and each starting for shortening Transmission Time Interval
Position.
8. according to the method described in claim 1, it is characterised in that in the radio resource control signaling also
The gap information that Transmission Time Interval is shortened in application is carried, the time slot letter of Transmission Time Interval is shortened in the application
Transmission Time Interval is shortened in which time slot application in the subframe of the breath instruction application shortening Transmission Time Interval；
The user equipment shortens the sub-frame information of Transmission Time Interval according to the application, knows each application contracting
Shortening the configuration information of Transmission Time Interval in the subframe of short transmission time interval includes：The user equipment root
Shorten the sub-frame information of Transmission Time Interval according to the application and the time slot of Transmission Time Interval is shortened in the application
Information, knows that shortening Transmission Time Interval of the subframe of Transmission Time Interval on specific time slot is shortened in each application
Configuration information.
9. a kind of base station, it is characterised in that including：
Transmitting element, for sending radio resource control signaling, the wireless heterogeneous networks letter to user equipment
The sub-frame information that Transmission Time Interval is shortened in application is carried in order, wherein, the shortening Transmission Time Interval
Length is less than subframe lengths.
10. base station according to claim 9, it is characterised in that in the radio resource control signaling
The length and/or application for also carrying the shortening Transmission Time Interval of the user equipment applications shorten between transmission time
Every subframe include shortening Transmission Time Interval number.
11. base station according to claim 9, it is characterised in that in the radio resource control signaling
Also carry the original position for shortening Transmission Time Interval in subframe.
12. base station according to claim 9, it is characterised in that in the radio resource control signaling
The length and/or application for also carrying the shortening Transmission Time Interval of the user equipment applications shorten between transmission time
Every subframe include shortening Transmission Time Interval number and subframe in shorten Transmission Time Interval rise
Beginning position.
13. base station according to claim 9, it is characterised in that in the radio resource control signaling
The gap information that Transmission Time Interval is shortened in application is also carried, the time slot of Transmission Time Interval is shortened in the application
In the subframe of the information instruction application shortening Transmission Time Interval between which time slot application shortening transmission time
Every.
14. a kind of user equipment, it is characterised in that including：
First receiving unit, the radio resource control signaling for receiving base station transmission, the Radio Resource control
The sub-frame information that Transmission Time Interval is shortened in application is carried in signaling processed, wherein, between the shortening transmission time
Every length be less than subframe lengths；
Know unit, the sub-frame information for shortening Transmission Time Interval according to the application knows each application
Shorten the configuration information for shortening Transmission Time Interval in the subframe of Transmission Time Interval；
Second receiving unit, for shortening in the subframe that Transmission Time Interval is shortened in the application according to described
The configuration information of Transmission Time Interval, which is received, shortens descending control signaling.
15. user equipment according to claim 14, it is characterised in that described to know unit, is used for
Shorten the sub-frame information of Transmission Time Interval according to the application, and base station is appointed in advance with the user equipment
The length of fixed shortening Transmission Time Interval, knows that each application is shortened to shorten in the subframe of Transmission Time Interval and passes
The length and number of defeated time interval.
16. user equipment according to claim 14, it is characterised in that the wireless heterogeneous networks letter
When the length and/or application that the shortening Transmission Time Interval of the user equipment applications is also carried in order shorten transmission
Between the number of shortening Transmission Time Interval that includes of the subframe that is spaced；
It is described to know unit, for the sub-frame information for shortening Transmission Time Interval according to the application, the use
The length of the shortening Transmission Time Interval of family equipment application and/or application are shortened wraps in the subframe of Transmission Time Interval
The number of the shortening Transmission Time Interval included, knows that each application is shortened to shorten in the subframe of Transmission Time Interval and passes
The length and number of defeated time interval.
17. user equipment according to claim 14, it is characterised in that described to know unit, is used for
According to shared by Physical Downlink Control Channel in the sub-frame information of application shortening Transmission Time Interval, subframe
Symbol number and the length of shortening Transmission Time Interval made an appointment of base station and the user equipment, really
The length for shortening Transmission Time Interval in the subframe of Transmission Time Interval, number and each are shortened in fixed each application
Shorten the original position of Transmission Time Interval.
18. user equipment according to claim 14, it is characterised in that the wireless heterogeneous networks letter
The original position for shortening Transmission Time Interval in subframe is also carried in order；
It is described to know unit, sub-frame information, the son for shortening Transmission Time Interval according to the application
The original position and base station for shortening Transmission Time Interval in frame are passed with the shortening that the user equipment is made an appointment
The length of defeated time interval, determines that each application is shortened in the subframe of Transmission Time Interval and shortens Transmission Time Interval
Length, number and each original position for shortening Transmission Time Interval.
19. user equipment according to claim 14, it is characterised in that the wireless heterogeneous networks letter
When the length and/or application that the shortening Transmission Time Interval of the user equipment applications is also carried in order shorten transmission
Between the number of shortening Transmission Time Interval that includes of the subframe that is spaced；
It is described to know unit, in the sub-frame information according to application shortening Transmission Time Interval, subframe
Symbol number shared by Physical Downlink Control Channel, and the user equipment applications shortening transmission time
For the shortening Transmission Time Interval that the subframe that Transmission Time Interval is shortened in the length at interval and/or application includes
Number, determine each application shorten the length for shortening Transmission Time Interval in the subframe of Transmission Time Interval, number with
And each original position for shortening Transmission Time Interval.
20. user equipment according to claim 14, it is characterised in that the wireless heterogeneous networks letter
When the length and/or application that the shortening Transmission Time Interval of the user equipment applications is also carried in order shorten transmission
Between shorten Transmission Time Interval in the number of shortening Transmission Time Interval that includes of the subframe that is spaced and subframe
Original position；
It is described to know unit, sub-frame information, the son for shortening Transmission Time Interval according to the application
Shorten the original position of Transmission Time Interval and the shortening Transmission Time Interval of the user equipment applications in frame
Length and/or application shorten Transmission Time Interval subframe include shortening Transmission Time Interval number,
Determine that the length for shortening Transmission Time Interval in the subframe of Transmission Time Interval, number and every are shortened in each application
The individual original position for shortening Transmission Time Interval.
21. user equipment according to claim 14, it is characterised in that the wireless heterogeneous networks letter
The gap information that Transmission Time Interval is shortened in application is also carried in order, Transmission Time Interval is shortened in the application
Transmission time is shortened in which time slot application in the subframe of the gap information instruction application shortening Transmission Time Interval
Interval；
It is described to know unit, for according to the application shorten Transmission Time Interval sub-frame information and it is described should
With the gap information for shortening Transmission Time Interval, know that each application shortens the subframe of Transmission Time Interval specific
The configuration information of shortening Transmission Time Interval on time slot.
22. a kind of downlink data dispatching configures system, it is characterised in that including base station and user equipment；
The base station, for sending radio resource control signaling, the wireless heterogeneous networks letter to user equipment
The sub-frame information that Transmission Time Interval is shortened in application is carried in order, wherein, the shortening Transmission Time Interval
Length is less than subframe lengths；
The user equipment, the sub-frame information for shortening Transmission Time Interval according to the application is known each
Using the configuration information for shortening Transmission Time Interval in the subframe for shortening Transmission Time Interval, and in the application
Shorten under shortening in the subframe of Transmission Time Interval according to the configuration information reception of the shortening Transmission Time Interval
Row control signaling.
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| CN201610203949.0A CN107295680B (en) | 2016-04-01 | 2016-04-01 | Downlink data scheduling configuration method and system, base station and user equipment |
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| CN110178430A (en) * | 2018-01-22 | 2019-08-27 | 北京小米移动软件有限公司 | Information transferring method, device, system and storage medium |
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