CN106550465A - The method and apparatus for sending, receiving the resource allocation information of short transmission time interval communication - Google Patents
The method and apparatus for sending, receiving the resource allocation information of short transmission time interval communication Download PDFInfo
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- CN106550465A CN106550465A CN201510609498.6A CN201510609498A CN106550465A CN 106550465 A CN106550465 A CN 106550465A CN 201510609498 A CN201510609498 A CN 201510609498A CN 106550465 A CN106550465 A CN 106550465A
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- short tti
- information
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- resource allocation
- allocation information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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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Abstract
The present invention provides a kind of transmission, the method and apparatus for receiving the resource allocation information that short transmission time interval communicates.Described sender method, including：Base station physical down control channel PDCCH notifies the resource allocation information for carrying out short TTI communications；Wherein described resource allocation information includes：The configured information of the downlink resource of the configured information, and/or short TTI communications of the ascending resource of the configured information, and/or short TTI communication of the configured information and/or short TTI communication formats of short TTI communications.The method of reseptance, including：User equipment receives the resource allocation information for carrying out short TTI communications from physical downlink control channel PDCCH；The user equipment carries out short TTI communications using the resource allocation information for carrying out short TTI communications.
Description
Technical field
The present invention relates to moving communicating field, more particularly to one kind sends, reception short transmission time interval is led to
The method and apparatus of the resource allocation information of letter.
Background technology
The fast development of mobile Internet, Internet of Things and other service applications has become promotion the 5th
The main drive that third-generation mobile communication technology (5G, 5th Generation) develops.They are an urgent demand 5G
Access rate with the optical fiber that matches in excellence or beauty, the concatenation ability of hundred billion equipment, perfect real-time experience, Yi Jisui
When wireless broadband Internet access ability everywhere.Additionally, energy consumption efficiency, spectrum efficiency and peak rate etc. are important
Index is also required to consider in 5G system designs.China has set up IMT-2020 in 2013 and has pushed away
Enter group to promote the development of 5G technologies.According to international overall condition, it is contemplated that 5G will be formed within 2015 and be willing to
The planning of scape, critical capability demand and frequency spectrum, will start 5G standardization efforts afterwards, and after the year two thousand twenty
Start commercial.In terms of international standard, the evolution LTE-Advanced of LTE (Long Term Evolution)
Technical standard mainly 3GPP International Organization for standardization work out.Industry is initially believed that in 3GPP R14
The research on standard started towards 5G is worked by the stage.
In following mobile network, traffic needs can be improved constantly, terminal number and species are also continuous
Explosive growth.One of important scenes and technological means as 5G, inter-machine communication (MTC,
Machine Type Communication) just receive more and more attention.Generally speaking, machinery compartment leads to
Letter has four big mainstream demands：Flood tide connection, low energy consumption, low time delay and highly reliable.In connection quantity,
Following 5G systems need the user capacity supported up to 30～3,000,000 user equipmenies of each cell, energy
99.99% region is covered enough；In terms of energy consumption, when 5G systems need to use the battery of user equipment
Between than extending 10 times now, up to 5～10 years；In terms of delay, 5G systems need to make end-to-end delay
5 times are reduced, it is minimum up to 5ms, wherein minimum of eating dishes without rice or wine to postpone is up to 1ms；In terms of reliability, safety
The reliability requirement of related news is up to 99.999%.In practical application, as the case may be, it is different
Using there may be different demand combinations forms again, can both be one of four kinds of above, can be it again
Various combination, it might even be possible to including all four kinds of demands.
Short transmission time interval access technology be by reduce LTE system Transmission Time Interval (TTI,
Transmission Time Interval), fully shorten processing delay and backhaul time delay, to support some industry
The ultralow time delay demand of business.The method that presently, there are two kinds of diminution TTI, one kind are by expanding orthogonal frequency
Divide the subcarrier of multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) system
The duration for being spaced to reduce single OFDM symbol；High frequency communication system and super-intensive of the method in 5G
It is discussed in network.Another kind of method be current 3GPP discussed by reducing in single TTI
The quantity of OFDM symbol is reducing TTI length；The benefit of the method can be and existing LTE systems
System is completely compatible, and the communication of short TTI directly can be carried out in traditional LTE system.
When the communication of short TTI is carried out, it is to carry out short TTI to carry out the configuration information needed for the communication of short TTI
The required content of communication, then the configuration information that how to transmit is carried out needed for short TTI communications is urgently to be resolved hurrily
Problem.
The content of the invention
The present invention provides a kind of transmission, the method for receiving the resource allocation information that short transmission time interval communicates
And device, technical problem to be solved is how to transmit the configuration information carried out needed for short TTI communications.
To solve above-mentioned technical problem, the invention provides following technical scheme：
A kind of method of the resource allocation information for sending the communication of short transmission time interval, methods described include：
Base station notifies to carry out the resource allocation letter of short TTI communications using physical downlink control channel PDCCH
Breath.
Wherein, the resource allocation information includes at least one of following information：The finger of short TTI communications
Show information, the configured information of short TTI communication formats, short TTI communication ascending resource configured information,
With the configured information of the downlink resource of short TTI communications.
Wherein, the configured information of each short TTI communication format is the form volume of short TTI communication formats
Number.
Wherein, the short TTI communication formats pre-set, and wherein each one group of form correspondence is carried out
The configuration information of short TTI communications.
Wherein, methods described also includes：
The base station sends described short to using one or more user equipmenies of the short TTI communication formats
The parameter information that TTI communication formats include.
The parameter information that wherein described short TTI communication formats include is by system broadcast message or advance
What the message of setting sent；Or, the parameter information that the short TTI communication formats include is by standard
What agreement was arranged.
Wherein, the configuration information for carrying out short TTI communications includes following at least one：
Inside the length of the DCCH in the length of short TTI, each short TTI, each short TTI
The type of DCCH, the position of resource shared by each DCCH and each special control
Channel processed carries out the modulation coding information used by TTI communications.
Wherein, the DCCH include the special downlink physical control channel PDCCH of short TTI,
The special physical mixed automatic re-transmission indicating channel PHICH of short TTI and short TTI special ascending physical signal
At least one of control channel PUCCH.
Wherein, the base station notifies to carry out short TTI communications using physical downlink control channel PDCCH
Resource allocation information, including：
Compiled using the adjustment in the DCI information units in physical downlink control channel PDCCH the base station
The configured information and/or the short TTI communications that retain option to transmit short TTI communications of code method MCS field
The configured information of form.
Wherein, the base station notifies to carry out short TTI communications using physical downlink control channel PDCCH
Resource allocation information, including：
The base station is mono- using Downlink Control Information DCI special in physical downlink control channel PDCCH
First form sends the resource allocation information for carrying out short TTI communications.
Wherein, the resource allocation information for being sent by the special DCI cell formats is also included：
Indicate the resource allocation information whether configured information persistently carried out in subsequent subframe；And/or,
The resource allocation information duration information.
Wherein, the resource allocation information for being sent by the special DCI cell formats is included simultaneously
The configured information of the configured information of the ascending resource of short TTI communications and the downlink resource of short TTI communications.
Wherein, methods described also includes：
The base station carries out short TTI communications according to the resource allocation information for carrying out short TTI communications.
A kind of method of the resource allocation information for receiving the communication of short transmission time interval, methods described include：
User equipment receives the resource allocation information for carrying out short TTI communications from PDCCH；
The user equipment is carried out short TTI and is led to using the resource allocation information for carrying out short TTI communications
Letter.
Wherein, the user equipment receives the resource allocation information for carrying out short TTI communications from PDCCH,
Including：
The special DCI cell formats from PDCCH of the user equipment are obtained and carry out short TTI communications
Resource information.
Wherein, the special DCI cell formats from PDCCH of the user equipment are obtained and carry out short TTI
The resource allocation information of communication, including：
The finger of the short TTI communications in the resource information of short TTI communications is carried out described in the user equipment acquisition
Show the configured information of information and/or short TTI communication formats, in the configured information for obtaining the short TTI communications
And/or after the configured information of short TTI communication formats, triggering carries out the operation of short TTI communications.
Wherein, the user equipment is carried out short using the resource allocation information for carrying out short TTI communications
TTI communicates, including：
The user equipment is according to the short TTI communications in the resource allocation information for carrying out short TTI communications
The configured information of form, determines short TTI communication formats；
The user equipment obtains the corresponding configuration information of the short TTI communication formats；
The user equipment utilizes the corresponding configuration information of the short TTI communication formats, carries out short TTI and leads to
The configuration of letter；
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or, the parameter information that the short TTI communication formats include is by marking
What quasi- agreement was arranged.
A kind of device of the resource allocation information for sending the communication of short transmission time interval, described device include：
First sending module, for notifying that carrying out short TTI leads to using physical downlink control channel PDCCH
The resource allocation information of letter.
Wherein, the resource allocation information includes at least one of following information：The finger of short TTI communications
Show information, the configured information of short TTI communication formats, short TTI communication ascending resource configured information,
With the configured information of the downlink resource of short TTI communications.
Wherein, the configured information of each short TTI communication format is the form volume of short TTI communication formats
Number.
Wherein, the short TTI communication formats pre-set, and wherein each one group of form correspondence is carried out
The configuration information of short TTI communications.
Wherein, described device also includes：
Second sending module, for one or more user equipmenies using the short TTI communication formats
Send the parameter information that the short TTI communication formats include.
The parameter information that wherein described short TTI communication formats include is by system broadcast message or advance
What the message of setting sent；Or, the parameter information that the short TTI communication formats include is by standard
What agreement was arranged.
Wherein, the configuration information for carrying out short TTI communications includes following at least one：
Inside the length of the DCCH in the length of short TTI, each short TTI, each short TTI
The type of DCCH, the position of resource shared by each DCCH and each special control
Channel processed carries out the modulation coding information used by TTI communications.
Wherein, the DCCH include the special downlink physical control channel PDCCH of short TTI,
Short TTI special physical mixed automatic re-transmission indicating channel PHICH and short TTI special ascending physical signal
At least one of control channel PUCCH.
Wherein, first sending module specifically for：Using in physical downlink control channel PDCCH
DCI information units in adjustment coding method MCS fields reservation option transmitting short TTI communication
Configured information and/or short TTI communication formats configured information.
Wherein, first sending module specifically for：Using in physical downlink control channel PDCCH
Special Downlink Control Information DCI cell formats send the resource allocation information for carrying out short TTI communications.
Wherein, the resource allocation information for being sent by the special DCI cell formats is also included：
Indicate the resource allocation information whether configured information persistently carried out in subsequent subframe；And/or,
The resource allocation information duration information.
Wherein, the up money for being communicated including short TTI by the resource allocation information that DCI sends simultaneously
The configured information of the downlink resource of the configured information in source and short TTI communications.
Wherein, described device also includes：
First communication module, for according to the resource allocation information for carrying out short TTI communications, carrying out short
TTI communicates.
A kind of device of the resource allocation information for receiving the communication of short transmission time interval, described device include：
Receiver module, for the resource allocation information for carrying out short TTI communications is received from PDCCH；
Second communication module, for utilizing the resource allocation information for carrying out short TTI communications, is carried out short
TTI communicates.
Wherein, the receiver module specifically for：
Special DCI cell formats from PDCCH obtain the resource information for carrying out short TTI communications.
Wherein, the receiver module specifically for：
Obtain the configured information of described short TTI communications in the resource information for carrying out short TTI communications with
/ or short TTI communication formats configured information, in the configured information for obtaining the short TTI communication and/or short
After the configured information of TTI communication formats, triggering carries out the operation of short TTI communications.
Wherein, the second communication module includes：
Determining unit, for being led to according to the short TTI in the resource allocation information for carrying out short TTI communications
The configured information of letter form, determines short TTI communication formats；
Acquiring unit, for obtaining the corresponding configuration information of the short TTI communication formats；
Dispensing unit, for using the corresponding configuration information of the short TTI communication formats, carrying out short TTI
The configuration of communication；
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or, the parameter information that the short TTI communication formats include is by marking
What quasi- agreement was arranged.
The embodiment that the present invention is provided, notifies to carry out the configuration information of short TTI communications by PDCCH,
Realize that transmission carries out the purpose of the resource allocation information needed for short TTI communications, be subsequently to carry out short TTI to lead to
Letter is there is provided configuration foundation.
Description of the drawings
The flow chart of the method for the resource allocation information of the short TTI of reception that Fig. 1 is provided for the present invention；
The frame structure schematic diagram of short TTI communications is carried out in the LTE system that Fig. 2 is provided for the present invention；
A kind of form of communication that short TTI is indicated using new DCI format that Fig. 3 is provided for the present invention
Interaction schematic diagram；
The interaction of the DCI format of a kind of new short TTI communications of instruction that Fig. 4 is provided for the present invention is illustrated
Figure；
A kind of reserved field of utilization MCS that Fig. 5 is provided for the present invention indicates the form of short TTI communications
Interactive schematic diagram；
Fig. 6 indicates short TTI for a kind of reserved field in PUSCH using MCS that the present invention is provided
The interactive schematic diagram of the form of communication；
Fig. 7 indicates short TTI for a kind of reserved field in PDSCH using MCS that the present invention is provided
The interactive schematic diagram of the form of communication；
The device of the resource allocation information of the reception short transmission time interval communication that Fig. 8 is provided for the present invention
Structure chart.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing and specifically
The present invention is described in further detail for embodiment.It should be noted that in the case where not conflicting,
The feature in embodiment and embodiment in the application mutually can be combined.
The discussion that current 3GPP is accessed to short TTI also rests on the initial technology evaluation stage, that is, analyze
Assess the final effect that short TTI is reduced to time delay.How short TTI is introduced in existing LTE system
Technology is a problem for being worth research.First, prolong reducing access to make full use of short TTI technologies
When, must be Time Continuous using the Radio Resource of short TTI technologies, i.e., have in each LTE subframe
Using the radio sub channels of short TTI technologies.Only in this way, can just effectively reduce packet reach after etc.
Treat the time.Secondly, LTE system must support multiple business, including traditional voice service, data industry
Business, and the low time delay business in future etc..Although can give low time delay business frequency domain distribute one it is fixed
Bandwidth, but due to the business datum amount of low time delay business be it is time dependent, and change channel condition
Also Radio Resource needed for business can be had a huge impact, so the distribution method of fixed-bandwidth can be brought
The wasting of resources.Finally, traditional LTE system makes full use of each user's using frequency selective scheduling
Frequency-selective channel, so the Radio Resource using short TTI technologies can not use fixed frequency position
Put.In sum, the following Radio Resource using short TTI technologies must be dynamically distributes.
Further, since short TTI technologies reduce the partition size of resource, resource allocation overhead is necessarily increased,
And expense increase and TTI diminution may be considered it is proportional.That is, TTI is shorter, when
Prolong less, but the additional signaling overhead that the control of resource allocation and correlation is caused is bigger.So, full
Under conditions of sufficient business demand, the length of the short TTI of employing is the bigger the better.With short TTI service delays
The change of demand, may may require that system adopts different short TTI length in different time.
When the communication of short TTI is carried out, it is to carry out short TTI to carry out the configuration information needed for the communication of short TTI
The required content of communication, therefore, the embodiment of the present invention proposes that transmission carries out the resource needed for short TTI communications
The solution of distribution information, is described as follows：
The present invention provides a kind of method of the resource allocation information for sending the communication of short transmission time interval, including：
Base station notifies to carry out the resource allocation letter of short TTI communications using physical downlink control channel PDCCH
Breath.
The present invention provide embodiment of the method, by PDCCH notify carry out short TTI communications with confidence
Breath, realizes that transmission carries out the purpose of the resource allocation information needed for short TTI communications, is subsequently to carry out short TTI
Communication is there is provided configuration foundation.
Wherein, the resource allocation information includes at least one of following information：The finger of short TTI communications
Show information, the configured information of short TTI communication formats, short TTI communication ascending resource configured information,
With the configured information of the downlink resource of short TTI communications.
Wherein, the configured information of short TTI communications is used to indicate that follow-up information is led to for carrying out short TTI
The information of letter, effectively to distinguish the communication of other classifications；
Wherein, the configured information of short TTI communication formats can be the corresponding form numbering of communication format；Example
Such as, when short TTI communication formats have at least two, can be each short TTI communication formats configuration correspondence
Format sequences, and parameter information in broadcasting format sequence number and the corresponding communication format of the format sequences,
In subsequent transmission, the parameter information in corresponding communication format is no longer transmitted, only need transformat to number
.
Wherein, the short TTI communication formats pre-set, and wherein each one group of form correspondence is carried out
The configuration information of short TTI communications
The base station sends described short to using one or more user equipmenies of the short TTI communication formats
The parameter information that TTI communication formats include.
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or,
The parameter information that the short TTI communication formats include is arranged by standard agreement.
Wherein, when configuration information transmission being carried out using short TTI communication formats, send short TTI communications
The parameter information that form includes, facilitates user equipment to know parameter information with numerical value in short TTI communication formats
Corresponding relation, realize simple and convenient.
Illustrated with institute's illustrated example above, when the short TTI communication formats for using include parameter A,
When parameter B and parameter C, need to notify that the communication format includes being followed successively by parameter A, parameter B and parameter
C's, i.e. content of parameter and parameter puts in order, to facilitate user equipment to determine the correspondence of parameter and numerical value
Relation.
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent.
Wherein it is possible in using system broadcast message untapped field or in system broadcast message increase newly
Plus field in transmission parameter information.
Wherein, the configuration information for carrying out short TTI communications includes following at least one：
Inside the length of the DCCH in the length of short TTI, each short TTI, each short TTI
The type of DCCH, the position of resource shared by each DCCH and each special control
Channel carries out the modulation coding information used by TTI communications.
Wherein, the DCCH includes short TTI- downlink physical control channels (Physical
Downlink Control Channel, PDCCH), the special physical mixed autonomous retransmissions of short TTI refer to
Show channel (Physical Hybrid ARQ Indicator Channel, PHICH) and special upper of short TTI
At least one of row physical control channel (Physical Uplink Control CHannel, PUCCH).
Wherein, the base station notifies to carry out short TTI communications using physical downlink control channel PDCCH
Resource allocation information, including：
Compiled using the adjustment in the DCI information units in physical downlink control channel PDCCH the base station
The configured information and/or the short TTI communications that retain option to transmit short TTI communications of code method MCS field
The configured information of form.
Using untapped field in existing protocol come transmission information, abundant transfer resource, and ensure that
It is compatible with existing protocol.
The base station notifies to carry out the resource point of short TTI communications using physical downlink control channel PDCCH
With information, including：
The base station is mono- using Downlink Control Information DCI special in physical downlink control channel PDCCH
First form sends the resource allocation information for carrying out short TTI communications.
Wherein, the resource allocation information for being sent by the special DCI cell formats is also included：
Indicate the resource allocation information whether configured information persistently carried out in subsequent subframe；And/or,
The resource allocation information duration information.
Wherein, the temporal information can be represented by time span or number of sub frames.
Wherein, the resource allocation information for being sent by the special DCI cell formats is included simultaneously
The configured information of the configured information of the ascending resource of short TTI communications and the downlink resource of short TTI communications.
Wherein, methods described also includes：
The base station carries out short TTI communications according to the resource allocation information for carrying out short TTI communications.
The method of the resource allocation information of the reception short transmission time interval communication that Fig. 1 is provided for the present invention
Flow chart.Shown in Fig. 1, method includes：
Step 101, user equipment receive the resource allocation information for carrying out short TTI communications from PDCCH；
Step 102, the user equipment are entered using the resource allocation information for carrying out short TTI communications
The short TTI communications of row.
The present invention provide embodiment of the method, by PDCCH reception carry out short TTI communications with confidence
Breath, realizes that transmission carries out the purpose of the resource allocation information needed for short TTI communications, is subsequently to carry out short TTI
Communication is there is provided configuration foundation.
Wherein described user equipment receives the resource allocation letter for carrying out short TTI communications from system broadcast message
Breath, including：
The special DCI cell formats from PDCCH of the user equipment are obtained and carry out short TTI communications
Resource information.
Wherein, the special DCI cell formats from PDCCH of the user equipment are obtained and carry out short TTI
The resource allocation information of communication, including：
The finger of the short TTI communications in the resource information of short TTI communications is carried out described in the user equipment acquisition
Show the configured information of information and/or short TTI communication formats, in the configured information for obtaining the short TTI communications
And/or after the configured information of short TTI communication formats, triggering carries out the operation of short TTI communications.
Wherein, the user equipment is carried out short using the resource allocation information for carrying out short TTI communications
TTI communicates, including：
The user equipment is according to the short TTI communications in the resource allocation information for carrying out short TTI communications
The configured information of form, determines short TTI communication formats；
The user equipment obtains the corresponding configuration information of the short TTI communication formats；
The user equipment utilizes the corresponding configuration information of the short TTI communication formats, carries out short TTI and leads to
The configuration of letter；
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or, the parameter information that the short TTI communication formats include is by marking
What quasi- agreement was arranged.
The frame structure schematic diagram of short TTI communications is carried out in the LTE system that Fig. 2 is provided for the present invention.As schemed
Shown in 1, no matter up direction carries out the resource of short TTI communications, or down direction carries out short TTI and leads to
The resource of letter, is all by PDCCH (Physical Downlink Control Channel, physical down control
Channel processed) in special Downlink Control Information DCI cell formats carry out dynamic instruction.Website is (such as base station
Or network equipment) can be according to the frequency of the residing channel of business demand, channel conditions and other UE
The factors such as rate selectivity carry out the size of the Resource Block of short TTI communications and position in flexibly adjusting each subframe
Put.User terminal is according to the information in the special DCI cell formats in PDCCH in base station specified
Resource Block and base station carry out short TTI communications.
In order to further reduce the signaling consumption of short TTI communications, website is firstly the need of all according to this cell
Or the business demand of part or single low time delay user selects suitable short TTI forms, then notifies these
User carries out short TTI communications form used and Radio Resource.Finally, in indicated resource, stand
Point and user terminal carry out short TTI communications according to the form of indicated short TTI communications.
Optionally, UE (User Equipment, user equipment) is from DCI
(DownlinkControlInformation, Downlink Control Information) middle acquisition specifically carries out short TTI and connects
The parameter for entering, including the length of short TTI, the length of the control channel in each short TTI and configuration etc..
Optionally, in order to reduce signaling consumption, the present invention proposes the short TTI communication formats for defining some standards,
The parameter that the fixed short TTI of each form correspondence is accessed.So, user terminal is simple according to what is indicated
May decide that if the format information (such as format sequences) of short TTI communications carries out every ginseng of short TTI communications
Number.
Optionally, when system only supports single default short TTI forms, the short TTI forms in DCI
Can be replaced by the short TTI configured informations of single-bit.Optionally, short TTI can be included in short TTI forms
Each internal control channel and corresponding data channel.Optionally, short TTI forms can only comprising short
Each control channel inside TTI, the data channel for specifically carrying out short TTI communications can further by short
The information in each control channel inside TTI is indicating.
A kind of friendship of form that short TTI communications are indicated using new DCI format that Fig. 3 is provided for the present invention
Mutual schematic diagram.As shown in figure 3, the DCI format of the utilization provided in the present invention newly definition indicates short TTI
What the communication process of form was realized in：
Step 1, base station indicate to carry out the resource of short TTI communications with aforesaid new DCI format.
After step 2, user terminal receive the resource distribution instruction of the new DCI format, according to what is obtained
The information of short TTI forms carries out short TTI communications.
Wherein, base station can utilize the DCI format of new definition to indicate the form and resource of short TTI communications.
Short TTI configured informations and/or short TTI forms configured information can be included in DCI format；Certainly, it is new
In DCI format, the ascending resource and/or downlink resource of short TTI communications can also be included.In addition, new
The duration of defined short TTI forms and resource can also be included in DCI format.
The schematic diagram of the DCI format of a kind of new short TTI communications of instruction that Fig. 4 is provided for the present invention.Such as
Shown in Fig. 4, the form includes 3 regions：Short TTI format sequences, ascending resource distribution, descending money
Source is distributed.In the embodiment shown in fig. 4, the format sequences of short TTI communications only account for 2 bits, can refer to
Show 4 kinds of different short TTI forms.The region can take more bit numbers to indicate more kinds of short TTI
The form of communication.Wherein, defined short TTI forms and resource can also be included in new DCI format
Duration.For example, when the duration being 10ms, per 10, tradition TTI just needs one
DCI is indicated, so as to the expense for reducing signaling as far as possible.
A kind of reserved field of utilization MCS that Fig. 5 is provided for the present invention indicates the form of short TTI communications
Interactive schematic diagram.As shown in figure 5, the reserved field instruction of the utilization MCS provided in the present invention is short
What the communication process of TTI forms was realized in：
Step 1, base station indicate the resource for carrying out short TTI communications in PDCCH, and base station is referred to using this
The reserved field in the MCS regions included in showing is indicating to carry out the form of short TTI communications, the resource point
Can be identical with existing resource distribution instruction with instruction；
After step 2, user terminal receive the resource distribution instruction, the MCS regions included from instruction are obtained
The information of short TTI forms is obtained, and then short TTI communications is carried out by the short TTI forms.
Fig. 6 indicates short TTI for a kind of reserved field in PUSCH using MCS that the present invention is provided
The interactive schematic diagram of the form of communication.As shown in fig. 6, the MCS indexes 29～31 for retaining in the past are distinguished
For indicating short TTI forms 1～3 are adopted in the ascending resource.
Fig. 7 indicates short TTI for a kind of reserved field in PDSCH using MCS that the present invention is provided
The embodiment of form.As shown in fig. 7, the MCS indexes 29～31 for retaining in the past are respectively used to indicate
Short TTI forms 1～3 are adopted in the downlink resource.
The present invention provides a kind of device of the resource allocation information for sending the communication of short transmission time interval, including：
A kind of device of the resource allocation information for sending the communication of short transmission time interval, including：
First sending module, for notifying that carrying out short TTI leads to using physical downlink control channel PDCCH
The resource allocation information of letter.
Wherein, the resource allocation information includes at least one of following information：The finger of short TTI communications
Show information, the configured information of short TTI communication formats, short TTI communication ascending resource configured information,
With the configured information of the downlink resource of short TTI communications.
Wherein, the configured information of each short TTI communication format is the form volume of short TTI communication formats
Number.
Wherein, the short TTI communication formats pre-set, and wherein each one group of form correspondence is carried out
The configuration information of short TTI communications.
Wherein, described device also includes：
Second sending module, for one or more user equipmenies using the short TTI communication formats
Send the parameter information that the short TTI communication formats include.
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or,
The parameter information that the short TTI communication formats include is arranged by standard agreement.
Wherein, the configuration information for carrying out short TTI communications includes following at least one：
Inside the length of the DCCH in the length of short TTI, each short TTI, each short TTI
The type of DCCH, the position of resource shared by each DCCH and each special control
Channel processed carries out the modulation coding information used by TTI communications.
Wherein, the DCCH include the special downlink physical control channel PDCCH of short TTI,
Short TTI special physical mixed automatic re-transmission indicating channel PHICH and short TTI special ascending physical signal
At least one of control channel PUCCH.
First sending module specifically for：Using the DCI in physical downlink control channel PDCCH
The instruction for retaining option to transmit short TTI communications of the adjustment coding method MCS fields in information unit
The configured information of information and/or short TTI communication formats.
Wherein, first sending module specifically for：Using in physical downlink control channel PDCCH
Special Downlink Control Information DCI cell formats send the resource allocation information for carrying out short TTI communications.
Wherein, the resource allocation information for being sent by the special DCI cell formats is also included：
Indicate the resource allocation information whether configured information persistently carried out in subsequent subframe；And/or,
The resource allocation information duration information.
Wherein, by the resource allocation information of the special DCI cell formats DCI transmissions simultaneously
The instruction letter of the downlink resource of configured information and short TTI communications including the ascending resource of short TTI communications
Breath.
Wherein, described device also includes：
First communication module, for according to the resource allocation information for carrying out short TTI communications, carrying out short
TTI communicates.
The device embodiment that the present invention is provided, by being that PDCCH notifies to carry out the configuration of short TTI communications
Information, realizes that transmission carries out the purpose of the resource allocation information needed for short TTI communication, be subsequently carry out it is short
TTI communications are there is provided configuration foundation.
The device of the resource allocation information of the reception short transmission time interval communication that Fig. 8 is provided for the present invention
Structure chart.Fig. 8 shown devices, including：
Receiver module 801, for the resource allocation information for carrying out short TTI communications is received from PDCCH；
Second communication module 802, for utilizing the resource allocation information for carrying out short TTI communications, enters
The short TTI communications of row.
Wherein, the receiver module 801 specifically for：
Special DCI cell formats from PDCCH obtain the resource information for carrying out short TTI communications.
Wherein, the receiver module 801 specifically for：
Obtain the configured information of described short TTI communications in the resource information for carrying out short TTI communications with
/ or short TTI communication formats configured information, in the configured information for obtaining the short TTI communication and/or short
After the configured information of TTI communication formats, triggering carries out the operation of short TTI communications.
Wherein, the second communication module 802 includes：
Determining unit, for being led to according to the short TTI in the resource allocation information for carrying out short TTI communications
The configured information of letter form, determines short TTI communication formats；
Acquiring unit, for obtaining the corresponding configuration information of the short TTI communication formats；
Dispensing unit, for using the corresponding configuration information of the short TTI communication formats, carrying out short TTI
The configuration of communication；
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or, the parameter information that the short TTI communication formats include is by marking
What quasi- agreement was arranged.
The present invention provide device embodiment, by PDCCH obtain carry out short TTI communications with confidence
Breath, realizes that transmission carries out the purpose of the resource allocation information needed for short TTI communications, leads to carry out short TTI
Letter is there is provided configuration foundation.
One of ordinary skill in the art will appreciate that all or part of step of above-described embodiment can be using meter
Realizing, the computer program can be stored in a computer-readable recording medium calculation machine program circuit,
The computer program on corresponding hardware platform (such as system, unit, device etc.) is performed,
Upon execution, including one or a combination set of the step of embodiment of the method.
Alternatively, all or part of step of above-described embodiment can also be realized using integrated circuit, this
A little steps can be fabricated to integrated circuit modules one by one respectively, or by the multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hard
Part and software are combined.
Each device/functional module/functional unit in above-described embodiment can using general computing device come
Realize, they can be concentrated on single computing device, it is also possible to be distributed in multiple computing device institutes group
Into network on.
Each device/functional module/functional unit in above-described embodiment is realized in the form of software function module
And as when independent production marketing or use, can be stored in a computer read/write memory medium.
Computer read/write memory medium mentioned above can be read-only storage, disk or CD etc..
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited to
In this, any those familiar with the art the invention discloses technical scope in, can be easily
Expect change or replacement, should all be included within the scope of the present invention.Therefore, protection of the invention
Scope should be defined by the protection domain described in claim.
Claims (34)
1. a kind of method of the resource allocation information for sending the communication of short transmission time interval, it is characterised in that
Methods described includes：
Base station notifies to carry out the resource allocation letter of short TTI communications using physical downlink control channel PDCCH
Breath.
2. method according to claim 1, it is characterised in that the resource allocation information include as
At least one of lower information：The configured information of short TTI communication, the configured information of short TTI communication formats,
The configured information of the configured information of the ascending resource of short TTI communications and the downlink resource of short TTI communications.
3. method according to claim 2, it is characterised in that each described short TTI communicates lattice
The configured information of formula is the form numbering of short TTI communication formats.
4. method according to claim 3, it is characterised in that the short TTI communication formats are
Pre-set, wherein each one group of form correspondence carries out the configuration information of short TTI communications.
5. method according to claim 4, it is characterised in that methods described also includes：
The base station sends described short to using one or more user equipmenies of the short TTI communication formats
The parameter information that TTI communication formats include.
6. method according to claim 5, it is characterised in that：
The parameter information that the short TTI communication formats include is by system broadcast message or presets
Message send；Or,
The parameter information that the short TTI communication formats include is arranged by standard agreement.
7. method according to claim 4, it is characterised in that described to carry out short TTI communications
Configuration information includes following at least one：
Inside the length of the DCCH in the length of short TTI, each short TTI, each short TTI
The type of DCCH, the position of resource shared by each DCCH and each special control
Channel processed carries out the modulation coding information used by TTI communications.
8. method according to claim 7, it is characterised in that the DCCH includes short
The special physical mixed autonomous retransmission instruction of TTI special downlink physical control channel PDCCH, short TTI
At least one of channel PHICH and short TTI special ascending physical signal control channel PUCCH.
9. method according to claim 1, it is characterised in that the base station utilizes physical down control
Channel PDCCH processed notifies the resource allocation information for carrying out short TTI communications, including：
Compiled using the adjustment in the DCI information units in physical downlink control channel PDCCH the base station
The configured information and/or the short TTI communications that retain option to transmit short TTI communications of code method MCS field
The configured information of form.
10. method according to claim 1, it is characterised in that the base station utilizes physical down
Control channel PDCCH notifies the resource allocation information for carrying out short TTI communications, including：
The base station is mono- using Downlink Control Information DCI special in physical downlink control channel PDCCH
First form sends the resource allocation information for carrying out short TTI communications.
11. methods according to claim 10, it is characterised in that by the special DCI
The resource allocation information that cell format sends also includes：
Indicate the resource allocation information whether configured information persistently carried out in subsequent subframe；And/or,
The resource allocation information duration information.
12. methods according to claim 10 or 11, it is characterised in that by described special
The finger of the ascending resource that the resource allocation information that DCI cell formats send is communicated including short TTI simultaneously
Show the configured information of the downlink resource of information and short TTI communications.
13. methods according to claim 1, it is characterised in that methods described also includes：
The base station carries out short TTI communications according to the resource allocation information for carrying out short TTI communications.
A kind of 14. methods of the resource allocation information for receiving the communication of short transmission time interval, it is characterised in that
Methods described includes：
User equipment receives the resource allocation information for carrying out short TTI communications from PDCCH；
The user equipment is carried out short TTI and is led to using the resource allocation information for carrying out short TTI communications
Letter.
15. methods according to claim 14, it is characterised in that the user equipment is from PDCCH
It is middle to receive the resource allocation information for carrying out short TTI communications, including：
The special DCI cell formats from PDCCH of the user equipment are obtained and carry out short TTI communications
Resource information.
16. methods according to claim 15, it is characterised in that the user equipment is from PDCCH
In special DCI cell formats obtain the resource allocation information for carrying out short TTI communications, including：
The finger of the short TTI communications in the resource information of short TTI communications is carried out described in the user equipment acquisition
Show the configured information of information and/or short TTI communication formats, in the configured information for obtaining the short TTI communications
And/or after the configured information of short TTI communication formats, triggering carries out the operation of short TTI communications.
17. methods according to claim 15 or 16, it is characterised in that the user equipment profit
With the resource allocation information for carrying out short TTI communications, short TTI communications are carried out, including：
The user equipment is according to the short TTI communications in the resource allocation information for carrying out short TTI communications
The configured information of form, determines short TTI communication formats；
The user equipment obtains the corresponding configuration information of the short TTI communication formats；
The user equipment utilizes the corresponding configuration information of the short TTI communication formats, carries out short TTI and leads to
The configuration of letter；
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or, the parameter information that the short TTI communication formats include is by marking
What quasi- agreement was arranged.
A kind of 18. devices of the resource allocation information for sending the communication of short transmission time interval, it is characterised in that
Described device includes：
First sending module, for notifying that carrying out short TTI leads to using physical downlink control channel PDCCH
The resource allocation information of letter.
19. devices according to claim 18, it is characterised in that the resource allocation information includes
At least one of following information：The configured information of short TTI communications, the instruction letter of short TTI communication formats
The instruction letter of the downlink resource of breath, the configured information of the ascending resource of short TTI communications and short TTI communications
Breath.
20. devices according to claim 19, it is characterised in that each described short TTI communication
The configured information of form is the form numbering of short TTI communication formats.
21. devices according to claim 20, it is characterised in that the short TTI communication formats
Pre-set, wherein each one group of form correspondence carries out the configuration information of short TTI communications.
22. devices according to claim 21, it is characterised in that described device also includes：
Second sending module, for one or more user equipmenies using the short TTI communication formats
Send the parameter information that the short TTI communication formats include.
23. devices according to claim 22, it is characterised in that：
The parameter information that the short TTI communication formats include is by system broadcast message or presets
Message send；Or,
The parameter information that the short TTI communication formats include is arranged by standard agreement.
24. devices according to claim 21, it is characterised in that described to carry out short TTI communications
Configuration information include following at least one：
Inside the length of the DCCH in the length of short TTI, each short TTI, each short TTI
The type of DCCH, the position of resource shared by each DCCH and each special control
Channel processed carries out the modulation coding information used by TTI communications.
25. devices according to claim 24, it is characterised in that the DCCH includes
Short TTI special downlink physical control channel PDCCH, short TTI special physical mixed autonomous retransmission
Indicate at least one of special ascending physical signal control channels PUCCH of channel PHICH and short TTI.
26. devices according to claim 18, it is characterised in that first sending module is concrete
For：Using the adjustment coding method in the DCI information units in physical downlink control channel PDCCH
MCS fields retain option to transmit the configured information and/or short TTI communication formats of short TTI communication
Configured information.
27. devices according to claim 18, it is characterised in that first sending module is concrete
For：Using Downlink Control Information DCI cell formats special in physical downlink control channel PDCCH
Transmission carries out the resource allocation information of short TTI communications.
28. devices according to claim 27, it is characterised in that by the special DCI
The resource allocation information that cell format sends also includes：
Indicate the resource allocation information whether configured information persistently carried out in subsequent subframe；And/or,
The resource allocation information duration information.
29. devices according to claim 27 or 28, it is characterised in that sent by DCI
The configured information and short TTI communication of the ascending resource that the resource allocation information is communicated including short TTI simultaneously
Downlink resource configured information.
30. devices according to claim 18, it is characterised in that described device also includes：
First communication module, for according to the resource allocation information for carrying out short TTI communications, carrying out short
TTI communicates.
A kind of 31. devices of the resource allocation information for receiving the communication of short transmission time interval, it is characterised in that
Described device includes：
Receiver module, for the resource allocation information for carrying out short TTI communications is received from PDCCH；
Second communication module, for utilizing the resource allocation information for carrying out short TTI communications, is carried out short
TTI communicates.
32. devices according to claim 31, it is characterised in that the receiver module specifically for：
Special DCI cell formats from PDCCH obtain the resource information for carrying out short TTI communications.
33. devices according to claim 31, it is characterised in that the receiver module specifically for：
Obtain the configured information of described short TTI communications in the resource information for carrying out short TTI communications with
/ or short TTI communication formats configured information, in the configured information for obtaining the short TTI communication and/or short
After the configured information of TTI communication formats, triggering carries out the operation of short TTI communications.
34. devices according to claim 31, it is characterised in that the second communication module includes：
Determining unit, for being led to according to the short TTI in the resource allocation information for carrying out short TTI communications
The configured information of letter form, determines short TTI communication formats；
Acquiring unit, for obtaining the corresponding configuration information of the short TTI communication formats；
Dispensing unit, for using the corresponding configuration information of the short TTI communication formats, carrying out short TTI
The configuration of communication；
Wherein, the parameter information that the short TTI communication formats include is by system broadcast message or pre-
What the message for first setting sent；Or, the parameter information that the short TTI communication formats include is by marking
What quasi- agreement was arranged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609498.6A CN106550465B (en) | 2015-09-22 | 2015-09-22 | Method and device for sending and receiving resource allocation information of short transmission time interval communication |
| PCT/CN2016/077539 WO2016177177A1 (en) | 2015-09-22 | 2016-03-28 | Methods and devices for sending, receiving resource allocation information for short transmission time interval communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609498.6A CN106550465B (en) | 2015-09-22 | 2015-09-22 | Method and device for sending and receiving resource allocation information of short transmission time interval communication |
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| CN106550465B CN106550465B (en) | 2022-04-19 |
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| CN201510609498.6A Active CN106550465B (en) | 2015-09-22 | 2015-09-22 | Method and device for sending and receiving resource allocation information of short transmission time interval communication |
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| WO (1) | WO2016177177A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN106550465B (en) | 2022-04-19 |
| WO2016177177A1 (en) | 2016-11-10 |
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