CN106954271B - A kind of downstream data channel sending method, device and system - Google Patents
A kind of downstream data channel sending method, device and system Download PDFInfo
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- CN106954271B CN106954271B CN201610009981.5A CN201610009981A CN106954271B CN 106954271 B CN106954271 B CN 106954271B CN 201610009981 A CN201610009981 A CN 201610009981A CN 106954271 B CN106954271 B CN 106954271B
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- 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
This application provides a kind of downstream data channel sending methods, device and system.Base station is the current service terminal terminal number of serial number as terminal since 1；Determine that each terminal sends the Position Number of data-signal according to the number of terminals of the terminal number and current service terminal of the Position Number formula of storage and each terminal；According to the mapping relations that RE in the Position Number of configuration and each symbol is numbered, determines the corresponding RE number of the Position Number, numbered in the RE and send data-signal to counterpart terminal on corresponding position；And the terminal number of number of terminals and the terminal described in counterpart terminal is notified by control signal, so that the terminal is determined that Position Number obtains data-signal according to the Position Number formula of storage and the number of terminals and terminal number.The technical solution can reduce control channel expense.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of downstream data channel sending method, device and system.
Background technique
As the technology more based on wireless transmission occurs, the demand of time delay is also increasingly stringenter, for traditional LTE
The end-to-end delay for the 10ms that system is supported is difficult to meet future network needs.The delay requirement of eating dishes without rice or wine of 1ms gradually becomes next
Walk the target of network design.
In LTE system, basic data transmission is based on 1ms subframe.For the time delay of eating dishes without rice or wine for meeting 1ms, in object
Reason layer needs support data dispatch and the transmission of symbol level.
In existing realization, control channel needs to indicate the specific location where all data-signals, and therefore, control channel is opened
Pin is big, cannot then support data dispatch and the transmission of symbol level.
Summary of the invention
In view of this, the application provides a kind of downstream data channel sending method, device and system, for solving control letter
The big problem of road expense.
In order to solve the above technical problems, the technical solution of the application is achieved in that
A kind of downstream data channel sending method, this method comprises:
Base station is the current service terminal terminal number of serial number as terminal since 1；
It is determined according to the number of terminals of the terminal number and current service terminal of the Position Number formula of storage and each terminal
Each terminal sends the Position Number of data-signal；
According to the mapping relations that RE in the Position Number of configuration and each symbol is numbered, determine that the Position Number is corresponding
RE number numbers in the RE and sends data-signal to counterpart terminal on corresponding position；
And the terminal number of number of terminals and the terminal described in counterpart terminal is notified by control signal, make the terminal according to depositing
The Position Number formula of storage and the number of terminals and terminal number determine Position Number, and according to determining Position Number with
And the mapping relations that RE is numbered in Position Number and each symbol determine corresponding RE number, and number corresponding position in the RE
Set acquisition data-signal.
A kind of downstream data channel sending device, the device include: storage unit, determination unit and transmission unit；
The storage unit, for being stored as the current service terminal terminal number of serial number as terminal since 1；
The mapping relations that RE is numbered in Position Number formula, Position Number and each symbol；
The determination unit, for according to the Position Number formula of storage and the terminal number of each terminal and current clothes
The number of terminals of business terminal determines that each terminal sends the Position Number of data-signal；According in the Position Number of configuration and each symbol
The mapping relations of RE number determine the corresponding RE number of the Position Number,
The transmission unit is sent on corresponding position to counterpart terminal for numbering in the RE that the determination unit determines
Data-signal；And by control signal notify counterpart terminal described in number of terminals and the terminal terminal number, make the terminal according to
The Position Number formula of storage and the number of terminals and terminal number determine Position Number, and according to determining Position Number
And the mapping relations that RE is numbered in Position Number and each symbol determine corresponding RE number, and corresponding in RE number
Position acquisition data-signal.
A kind of downstream data channel transmission system, which includes: base station and terminal；
The base station is the current service terminal terminal number of serial number as terminal since 1；According to the position of storage
The number of terminals of the terminal number and current service terminal of setting number formula and each terminal determines that each terminal sends data-signal
Position Number；According to the mapping relations that RE in the Position Number of configuration and each symbol is numbered, determine that the Position Number is corresponding
RE number, numbered in the RE and send data-signal to counterpart terminal on corresponding position；And pass through control signal notice pair
Answer the terminal number of number of terminals described in terminal He the terminal；
When the terminal receives the control signal of base station transmission, number of terminals is obtained from the control signal and terminal is compiled
Number, and according to the Position Number formula of storage, and the number of terminals and terminal number that obtain determine Position Number, according to determining
The mapping relations that RE is numbered in Position Number and Position Number and each symbol determine corresponding RE number, and in the RE
Number corresponding position acquisition data-signal.
It as can be seen from the above technical solution, is that each terminal is public according to the Position Number of storage by base station in the application
Formula determines the position of data-signal transmission for each terminal in advance, the instruction needs for control channel is effectively reduced, to reduce
The expense of control channel.
Detailed description of the invention
Fig. 1 is downstream data channel sending method flow diagram in the embodiment of the present application；
Fig. 2 is LTE system list structure of time slot figure；
Fig. 3 is the apparatus structure schematic diagram for being applied to above-mentioned technology in the embodiment of the present application；
Fig. 4 is the system schematic for being applied to above-mentioned technology in the embodiment of the present application.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and examples,
Technical solution of the present invention is described in detail.
A kind of downstream data channel sending method is provided in the embodiment of the present application, is each terminal according to storage by base station
Position Number formula, in advance for each terminal determine data-signal send position, effectively reduce the instruction for control channel
It needs, to reduce the expense of control channel.
Below with reference to each attached drawing, the process for realizing that downstream data channel is sent in the embodiment of the present application is described in detail.
It is downstream data channel sending method flow diagram in the embodiment of the present application referring to Fig. 1, Fig. 1.Specific steps are as follows:
Step 101, base station is the current service terminal terminal number of serial number as terminal since 1.
If the number of terminals of base station current service terminal is N, for each terminal, serial number is 1,2,3 ... N since 1；
Here current service terminal is the terminal that base station sends data simultaneously.
Step 102, the base station is whole according to the Position Number formula of storage and the terminal number and current service of each terminal
The number of terminals at end determines that each terminal sends the Position Number of data-signal.
Base station is pre-configured with Position Number formula, which can be i=u+ (t-1) × N, wherein i is position volume
Number, u is terminal number, and N is the number of terminals of base station current service terminal, and t is the integer more than or equal to 1 and less than or equal to T, T=
INT (M/N), INT indicate to be rounded downwards；M is the institute in entire symbol in addition to controlling RE used in signal and pilot signal
There is the number of RE, be not here used in the control signal and pilot signal in addition to symbol, but is transmitted in a symbol
It can be sent respectively on all RE except the RE that control signal and pilot signal use, i.e., the different RE on the same symbol
Data-signal and control signal, pilot signal.
Referring to fig. 2, Fig. 2 is LTE system list structure of time slot figure.On 7 character positions in Fig. 2 in dashed rectangle, it is assumed that
The corresponding RE of the small box of oblique line (Resource Element) is the sign bit for controlling signal and occupying, the corresponding RE of the small box of horizontal line
For pilot signal occupy sign bit, it is assumed that using only the RE in dashed rectangle be all terminal transmission data signals, then in addition to
Having 10 RE, i.e. M outside the RE that control signal and pilot signal occupy in each symbol is 10.
If current service total number of terminals is 3, M 10, then T is 3；The terminal for being 3 for number, for its use of each symbol
In data-signal send Position Number i be 3,6,9.
For all RE in entire symbol used in the control signal and pilot signal in addition to RE number M at each end
It is similar with Position Number formula on end, it is stored in advance.System indeclinable for M can be pre-configured in each terminal and deposit
Storage；For M can change or indeclinable situation under, each terminal can be notified by base station, makes each terminal storage, based on
Calculate Position Number.
Step 103, the base station according in the Position Number and each symbol of configuration RE number mapping relations, determine described in
The corresponding RE number of Position Number, numbers in the RE and sends data-signal to counterpart terminal on corresponding position.
The mapping relations of RE number in base station allocation position number and each symbol；For each symbol, since pilot tone is believed
Number and control signal location it is different, need that mapping relations are respectively configured.
Such as by taking the 1st column in dotted line frame and the 3rd column symbol as an example, the number of RE is shown in Fig. 2, carries out for the corresponding RE of blank cell
Number, then allocation position number 1 is mapped as the number 1 of RE, and Position Number 2 is mapped as the number 2 ... ... of RE, Position Number 10
It is mapped as the number 10 of RE.
Step 104, which notifies the terminal number of number of terminals and the terminal described in counterpart terminal by control signal, makes
The terminal determines Position Number according to the Position Number formula of storage and the number of terminals and terminal number, and according to determination
Position Number and Position Number and each symbol in the mapping relations of RE number determine corresponding RE number, and in the RE
Number corresponding position acquisition data-signal.
When terminal receives the control signal of base station transmission, number of terminals and terminal number are obtained from the control signal, and
According to the Position Number formula of storage, and the number of terminals and terminal number that obtain determine Position Number, according to determining position
The mapping relations of RE number determine corresponding RE number in number and Position Number and each symbol, and number in the RE
Corresponding position acquisition data-signal.
The Position Number formula stored on the Position Number formula of each terminal storage and base station is identical, and the position in terminal is compiled
Number formula, which can be, directly to be configured, and is also possible to configure on base station and is sent to each terminal in advance.
In the above-mentioned realization of the embodiment of the present application, due to controlled in each symbol signal and pilot signal position for
Terminal be it is known, therefore, control channel only needs to notify terminal current service number of terminals and the terminal number, terminal
All data symbol positions are smoothly found, to be demodulated.
Meanwhile such data resource method of salary distribution makes each user make full use of entire band resource, UE only needs
Entire frequency band feedback is carried out, also simplifies the feedback procedure of terminal in this way.
Based on same inventive concept, the application also proposes a kind of downstream data channel sending device.It is referring to Fig. 3, Fig. 3
It is applied to the apparatus structure schematic diagram of above-mentioned technology in the embodiment of the present application.The device includes: storage unit 301, determination unit
302 and transmission unit 303；
Storage unit 301, for being stored as the current service terminal terminal number of serial number as terminal since 1；
The mapping relations that resource block RE is numbered in Position Number formula, Position Number and each symbol；
Determination unit 302, for according to the Position Number formula of storage and the terminal number and current service of each terminal
The number of terminals of terminal determines that each terminal sends the Position Number of data-signal；According to RE in the Position Number of configuration and each symbol
The mapping relations of number determine the corresponding RE number of the Position Number,
Transmission unit 303 sends number to counterpart terminal on corresponding position for numbering in the RE that determination unit 302 determines
It is believed that number；And the terminal number of number of terminals and the terminal described in counterpart terminal is notified by control signal, make the terminal according to depositing
The Position Number formula of storage and the number of terminals and terminal number determine Position Number, and according to determining Position Number with
And the mapping relations that RE is numbered in Position Number and each symbol determine corresponding RE number, and number corresponding position in the RE
Set acquisition data-signal.
Preferably,
The Position Number formula are as follows: i=u+ (t-1) × N, wherein i is Position Number, and u is terminal number, and N is base station
The number of terminals of current service terminal, t are the integer more than or equal to 1 and less than or equal to T, and T=INT (M/N), M are in entire symbol
The number of all RE in addition to controlling RE used in signal and pilot signal.
The unit of above-described embodiment can integrate in one, can also be deployed separately；It can be merged into a unit, it can also
To be further split into multiple subelements.
The embodiment of the present application also proposes that a kind of downstream data channel sends system.Referring to fig. 4, Fig. 4 is the embodiment of the present application
In be applied to above-mentioned technology system schematic.The system includes: base station and terminal；
Base station is the current service terminal terminal number of serial number as terminal since 1；It is compiled according to the position of storage
Number formula and the terminal number of each terminal and the number of terminals of current service terminal determine that each terminal sends the position of data-signal
Number；According to the mapping relations that RE in the Position Number of configuration and each symbol is numbered, the corresponding RE of the Position Number is determined
Number numbers in the RE and sends data-signal to counterpart terminal on corresponding position；And it is corresponding eventually by control signal notice
Hold the terminal number of the number of terminals He the terminal；
When terminal receives the control signal of base station transmission, number of terminals and terminal number are obtained from the control signal, and
According to the Position Number formula of storage, and the number of terminals and terminal number that obtain determine Position Number, according to determining position
The mapping relations of RE number determine corresponding RE number in number and Position Number and each symbol, and number in the RE
Corresponding position acquisition data-signal.
The Position Number formula are as follows: i=u+ (t-1) × N, wherein i is Position Number, and u is terminal number, and N is base station
The number of terminals of current service terminal, t are the integer more than or equal to 1 and less than or equal to T, and T=INT (M/N), M are in entire symbol
The number of all RE in addition to controlling RE used in signal and pilot signal.
In conclusion the application is each terminal according to the Position Number formula of storage by base station, it is in advance each terminal
It determines the position that data-signal is sent, the instruction needs for control channel is effectively reduced, to reduce the expense of control channel.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (3)
1. a kind of downstream data channel sending method, which is characterized in that this method comprises:
Base station is the current service terminal terminal number of serial number as terminal since 1；
Each end is determined according to the number of terminals of the terminal number and current service terminal of the Position Number formula of storage and each terminal
End sends the Position Number of data-signal；
According to the mapping relations that resource block RE in the Position Number of configuration and each symbol is numbered, determine that the Position Number is corresponding
RE number, numbered in the RE and send data-signal to counterpart terminal on corresponding position；
And the terminal number of number of terminals and the terminal described in counterpart terminal is notified by control signal, make the terminal according to storage
Position Number formula and the number of terminals and terminal number determine Position Number, and according to determining Position Number and position
The mapping relations for setting RE number in number and each symbol determine corresponding RE number, and number corresponding position in the RE and obtain
Data taken signal；
Wherein, the Position Number formula are as follows:
I=u+ (t-1) × N, wherein i is Position Number, and u is terminal number, and N is the number of terminals of base station current service terminal, t
For the integer more than or equal to 1 and less than or equal to T, T=INT (M/N), M control signal and pilot signal institute to remove in entire symbol
The number of all RE except the RE used.
2. a kind of downstream data channel sending device, which is characterized in that the device includes: storage unit, determination unit and transmission
Unit；
The storage unit, for being stored as the current service terminal terminal number of serial number as terminal since 1；Position
The mapping relations that resource block RE is numbered in number formula, Position Number and each symbol；
The determination unit, for whole according to the Position Number formula of storage and the terminal number and current service of each terminal
The number of terminals at end determines that each terminal sends the Position Number of data-signal；It is compiled according to RE in the Position Number of configuration and each symbol
Number mapping relations, determine the Position Number corresponding RE number,
The transmission unit sends data to counterpart terminal on corresponding position for numbering in the RE that the determination unit determines
Signal；And the terminal number of number of terminals and the terminal described in counterpart terminal is notified by control signal, make the terminal according to storage
Position Number formula and the number of terminals and terminal number determine Position Number, and according to determining Position Number and
The mapping relations that RE is numbered in Position Number and each symbol determine corresponding RE number, and number corresponding position in the RE
Obtain data-signal；
Wherein, the Position Number formula are as follows: i=u+ (t-1) × N, wherein i is Position Number, and u is terminal number, and N is base
The number of terminals of current service of standing terminal, t are the integer more than or equal to 1 and less than or equal to T, and T=INT (M/N), M are entire symbol
The number of interior all RE in addition to controlling RE used in signal and pilot signal.
3. a kind of downstream data channel sends system, which is characterized in that the system includes base station and terminal；
The base station is the current service terminal terminal number of serial number as terminal since 1；It is compiled according to the position of storage
Number formula and the terminal number of each terminal and the number of terminals of current service terminal determine that each terminal sends the position of data-signal
Number；According to the mapping relations that RE in the Position Number of configuration and each symbol is numbered, the corresponding RE of the Position Number is determined
Number numbers in the RE and sends data-signal to counterpart terminal on corresponding position；And it is corresponding eventually by control signal notice
Hold the terminal number of the number of terminals He the terminal；
When the terminal receives the control signal of base station transmission, number of terminals and terminal number are obtained from the control signal, and
According to the Position Number formula of storage, and the number of terminals and terminal number that obtain determine Position Number, according to determining position
The mapping relations of RE number determine corresponding RE number in number and Position Number and each symbol, and number in the RE
Corresponding position acquisition data-signal；
Wherein；The Position Number formula are as follows: i=u+ (t-1) × N, wherein i is Position Number, and u is terminal number, and N is base
The number of terminals of current service of standing terminal, t are the integer more than or equal to 1 and less than or equal to T, and T=INT (M/N), M are entire symbol
The number of interior all RE in addition to controlling RE used in signal and pilot signal.
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| CN201610009981.5A CN106954271B (en) | 2016-01-07 | 2016-01-07 | A kind of downstream data channel sending method, device and system |
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| CN201610009981.5A CN106954271B (en) | 2016-01-07 | 2016-01-07 | A kind of downstream data channel sending method, device and system |
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| CN101296207B (en) * | 2007-04-28 | 2011-08-10 | 华为技术有限公司 | Transmission method for controlling signaling, network side equipment and terminal |
| CN101605356B (en) * | 2008-06-12 | 2011-11-02 | 电信科学技术研究院 | Method, device and system for indicating resources |
| WO2012132016A1 (en) * | 2011-03-31 | 2012-10-04 | 富士通株式会社 | Communications system, base station device, terminal device, and communications method |
| PT3261280T (en) * | 2012-12-18 | 2019-07-12 | Lg Electronics Inc | Method and apparatus for receiving ack/nack in wireless communication system |
| CN104243087B (en) * | 2013-06-13 | 2019-02-12 | 中兴通讯股份有限公司 | A kind of sending method of data and control information, method of reseptance, base station and terminal |
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Effective date of registration: 20211223 Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF INFORMATION AND COMMUNICATIONS Address before: 100191 No. 52 Garden North Road, Beijing, Haidian District Patentee before: CHINA ACADEME OF TELECOMMUNICATION RESEARCH OF MIIT |