CN110267352A - Scheduling of user terminals method and device - Google Patents
Scheduling of user terminals method and device Download PDFInfo
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- CN110267352A CN110267352A CN201910722587.XA CN201910722587A CN110267352A CN 110267352 A CN110267352 A CN 110267352A CN 201910722587 A CN201910722587 A CN 201910722587A CN 110267352 A CN110267352 A CN 110267352A
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- time slot
- control signaling
- descending control
- information element
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
Abstract
A kind of scheduling of user terminals method and device, which comprises receive the signal in the subframe that base station issues；In first time slot of the subframe, descending control signaling corresponding with the user terminal is obtained；Time slot indication information element is obtained from the descending control signaling, the time slot indication information element is used to indicate the time slot using the descending control signaling；When the descending control signaling indicates that executing downlink data receives, downlink data is received in the time slot using the descending control signaling, and in the resource of descending control signaling instruction；When the descending control signaling indicates that executing upstream data sends, i-th of time slot after receiving the descending control signaling sends upstream data.Using the method and device, the time delay of base station scheduling UE can be effectively shortened.
Description
Technical field
The present invention relates to wireless communication field more particularly to a kind of scheduling of user terminals method and devices.
Background technique
In the existing scheme of long term evolution (Long Term Evolution, LTE) system, user terminal (User
Equipment, UE) receive base station transmission signaling and data process it is as follows: first receive be located at subframe first symbol
To the Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) in third symbol, from
The middle one's own descending control signaling of detection.Later, the modulating-coding format according to descending control signaling instruction
(Modulation and Coding Scheme, MCS), resource block (Resource Block, RB) resource allocation information etc.,
It receives and belongs to certainly in the Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) of the subframe
Oneself data.When receiving successfully, at least four subframe of the UE after receiving the subframe of the data is true to base station feedback
Recognize information (ACKnowledgement, ACK)；When reception failure, to base station feedback negative acknowledge (Negative
ACKnowledgement, NACK).
In the prior art, user terminal receives the signaling of base station transmission and data are with a subframe (length 1ms)
For unit, i.e., the signaling and data of base station transmission, Transmission Time Interval (Transmission Time are received as unit of 1ms
Interval, TTI) it is 1ms.Correspondingly, scheduling UE in base station is also as unit of 1ms.This scheduling mechanism is for non real-time industry
Be for business enough, but for certain real time business (it is required that end-to-end time delay in 30ms), this dispatcher
System is not able to satisfy delay requirement.
Summary of the invention
Present invention solves the technical problem that being how to shorten the time delay of base station scheduling UE.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of scheduling of user terminals method, comprising:
Receive the signal in the subframe that base station issues；
In first time slot of the subframe, descending control signaling corresponding with the user terminal is obtained；
Time slot indication information element is obtained from the descending control signaling, the time slot indication information element is used to indicate described in application
The time slot of descending control signaling；
When the descending control signaling indicates that executing downlink data receives, described using the descending control signaling
Time slot, and downlink data is received in the resource of descending control signaling instruction；
When the descending control signaling indicates that executing upstream data sends, after receiving the descending control signaling
I-th of time slot send upstream data.
Optionally, the time slot indication information element is 1 bit information element.
Optionally, when the time slot indication information element is effective, the time slot indication information element is used to indicate using the downlink
The time slot of control signaling is first time slot of the subframe.
Optionally, the time slot indication information element is more bit information elements.
Optionally, the time slot indication information element is used to indicate the time slot of the descending control signaling are as follows: the of the subframe
X-th of time slot after one time slot, x are the value of the time slot indication information element.
Optionally, the scheduling of user terminals method, further includes: when the time slot indication information element is invalid, or under described
When the time slot indication information element having not been obtained in row control signaling, in the subframe for receiving the descending control signaling according under described
The resource of row control signaling instruction receives downlink data, or n-th after the subframe for receiving the descending control signaling
Frame sends upstream data.
Optionally, when the user terminal is in FDD standard, the value of i is any of 3,4,5,6；When described
When user terminal is in TDD standard, i >=3.
The embodiment of the invention provides a kind of scheduling of user terminals devices, comprising:
First receiving unit, for receiving the signal in the subframe that base station issues；
Descending control signaling acquiring unit obtains and the user terminal pair for first time slot in the subframe
The descending control signaling answered；
Time slot indication information element acquiring unit, for obtaining time slot indication information element from the descending control signaling, when described
Gap indication information element is used to indicate the time slot using the descending control signaling；
Second receiving unit is used for when the descending control signaling indicates that executing downlink data receives, in the application
The time slot of the descending control signaling, and downlink data is received in the resource of descending control signaling instruction；
Transmission unit, for when the descending control signaling indicate execute upstream data send when, receive it is described under
I-th of time slot after row control signaling sends upstream data.
Optionally, the time slot indication information element is 1 bit information element, is used to indicate the time slot using the descending control signaling
For first time slot of the subframe.
Optionally, the time slot indication information element is more bit information elements, is used to indicate after first time slot of the subframe
X-th of time slot.
Optionally, it is invalid to be also used to work as the time slot indication information element for second receiving unit, or controls from the downlink
When the time slot indication information element having not been obtained in signaling, controlled in the subframe for receiving the descending control signaling according to the downlink
The resource of signaling instruction receives downlink data；The transmission unit is also used to when the time slot indication information element is invalid, or from described
When the time slot indication information element having not been obtained in descending control signaling, after the subframe for receiving the descending control signaling the
N number of subframe sends upstream data.
Optionally, when the user terminal is in FDD standard, the value of i is any of 3,4,5,6；When described
When user terminal is in TDD standard, i >=3.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
After receiving descending control signaling, time slot indication information element is obtained, from descending control signaling to know application
The time slot of the descending control signaling, and the data transmission executed according to descending control signaling instruction, it is enterprising in corresponding time slot
Row upstream data is sent or downlink data receives, and is scheduled in a time slot to user terminal so as to realize, base is shortened
It stands the time delay of scheduling user terminal.
Detailed description of the invention
Fig. 1 is the flow chart of one of embodiment of the present invention scheduling of user terminals method；
Fig. 2 is the structural schematic diagram of one of embodiment of the present invention scheduling of user terminals device.
Specific embodiment
In the prior art, user terminal receive base station transmission signaling and data be as unit of a subframe, i.e., with
1ms is the signaling and data that unit receives base station transmission.Correspondingly, scheduling UE in base station is also as unit of 1ms.The prior art
In, the time delay that UE is dispatched in base station is longer.
In embodiments of the present invention, permission base station is unit scheduling user terminal according to time slot, and a subframe includes two
Time slot: the first time slot and the second time slot, each time slot duration 0.5ms.User terminal is obtained and is used in first time slot of subframe
Terminal corresponding descending control signaling in family obtains time slot indication information element from descending control signaling, applies the downlink control to know
The time slot of signaling processed, and the data transmission executed according to descending control signaling instruction, carry out uplink number in corresponding time slot
It receives according to transmission or downlink data, user terminal is scheduled in a time slot so as to realize, shorten base station scheduling and use
The time delay of family terminal.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
The embodiment of the invention provides a kind of scheduling of user terminals methods, referring to Fig.1, carry out below by way of specific steps detailed
It describes in detail bright.
Step S101 receives the signal in the subframe that base station issues.
Step S102 obtains downlink control letter corresponding with the user terminal in first time slot of the subframe
It enables.
In practical applications, the time span of radio frames is 10ms, each radio frames includes 10 subframes, each subframe
Time span be 1ms.Each subframe includes two time slots, and the time span of each time slot is 0.5ms.Base station is that user is whole
The descending control signaling of end distribution is arranged in the physical resource of first time slot of subframe.Under normal conditions, user terminal pair
First symbol (Symbol) of first time slot is arranged in into third symbol in the descending control signaling answered.
For user terminal when receiving the data that base station is sent, first reception is located at first symbol of first time slot of subframe extremely
The descending control signaling transmitted on PDCCH in third symbol.User terminal detect PDCCH in the presence or absence of via oneself
Under Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network Temporary Identifier, C-RNTI) is scrambled
Row control signaling.When there is the scrambled descending control signaling of C-RNTI via oneself, oneself can be obtained from PDCCH
Descending control signaling.
After user terminal gets the descending control signaling of oneself, step S103 can be executed.
Step S103 obtains time slot indication information element from the descending control signaling.
In embodiments of the present invention, base station, can be in the corresponding downlink of user terminal when sending data to user terminal
Increase a time slot indication information element in control signaling newly, newly-increased time slot indication information element can be a bit or multiple bits, institute
Stating time slot indication information element can indicate which time slot the descending control signaling is applied to.
User terminal can therefrom obtain time slot indication information element after getting descending control signaling, and then can know
Using the time slot of the descending control signaling.When time slot indication information element is 1 bit information element, time slot indication information element can be set and be set to
Effective when 1, it is invalid when 0 that setting time slot indication information element is set to.
When time slot indication information element is 1 bit information element, the time slot using the descending control signaling is the son being currently received
First time slot of frame；When time slot indication information element is more bit information elements, the value of the time slot indication information element of more bits can be known
X, at this point, (i.e. using x time slot after first time slot that the time slot of the descending control signaling is the subframe being currently received
Receive x-th of time slot after descending control signaling), particularly, when x is 0, instruction receives the institute of descending control signaling
In time slot.
After getting time slot indication information element, you can learn that using the time slot of the descending control signaling.In practical application
In, the descending control signaling that user terminal receives is possibly used for downlink data reception, it is also possible to send for upstream data.Example
Such as, obtaining descending control signaling corresponding with user terminal is DCI 1A (i.e. DCI format is 1A), then the descending control signaling is used
It is received in downlink data.For another example, obtaining descending control signaling corresponding with user terminal is DCI 0 (i.e. DCI format is 0), then
The descending control signaling is sent for upstream data.
Therefore, after getting the time slot that descending control signaling and the descending control signaling are applied to, step can be executed
Rapid S104, to know that the descending control signaling is to send for upstream data or receive for downlink data.If in this step
Time slot indication information element is not detected in rapid, then shows that the descending control signaling is applied to a subframe, user terminal is using existing
There is mechanism to execute data receiver or transmission.
Step S104, judges whether the descending control signaling indicates that executing downlink data receives.When the downlink controls
When signaling instruction executes downlink data reception, step S105 is executed；When the descending control signaling indicates to execute upstream data hair
When sending, step S106 is executed.
Step S105, in the time slot using the descending control signaling, and in descending control signaling instruction
Downlink data is received in resource.
In embodiments of the present invention, when time slot indication information element is 1 bit information element and is asserted, time slot indication information element
The time slot using the descending control signaling of instruction is the time slot for receiving the descending control signaling., namely when subframe n's
It is first time slot of subframe n using the time slot of the descending control signaling when first time slot receives descending control signaling.Cause
This receives the data of base station transmission in first time slot of the subframe in the resource of descending control signaling instruction.
When time slot indication information element is more bit information elements, the value x of the time slot indication information element of more bits can be known, at this point,
Can x time slot after receiving the descending control signaling, receive base in the resource of descending control signaling instruction
Stand transmission data.
For example, the data in the time slot indication information element of more bits are 101, the subframe being currently received is subframe n, then currently
First time slot of subframe is 2n, and second time slot is 2n+1.At this point, the value of the time slot indication information element of more bits is x=5, then
At the 2n+5 time slot (the 5th time slot i.e. after receiving the descending control signaling), refer in the descending control signaling
The data of base station transmission are received in the resource shown.
Step S106, i-th of time slot after receiving the descending control signaling send upstream data.
In specific implementation, when time slot indication information element is 1 bit information element and when being asserted or time slot indication information element
When for more bit information elements, indicated by sending time slots be i-th of time slot after receiving the descending control signaling.Cause
This, can i-th of time slot after receiving the descending control signaling send upstream data.
In embodiments of the present invention, i value can be related to the network formats that user terminal is presently in.When user terminal is worked as
When preceding locating network formats are FDD (frequency division multiplexing), the value of i can be any of 3,4,5,6.When user terminal is current
When locating network formats are TDD (time division multiplexing), i >=3.
I value can also be matched by base station according to the processing capacity of user terminal and the load of base station and processing capacity dynamic
It sets, base station can be that user terminal configures i value by radio resource control signaling, can also be in descending control signaling to user
Terminal indicates i value.
In embodiments of the present invention, there may also be the scenes that time slot indication information element is not present in descending control signaling.When
When time slot indication information element is 1 bit information element, invalid scene is set to there may also be time slot indication information element.When appearance above-mentioned two
When kind scene, the transmission of upstream data is executed using current mechanism.
In the prior art, it when time slot indication information element is invalid, or has not been obtained from descending control signaling to time slot and indicates
When cell, downlink data is received according to the resource of descending control signaling instruction in the subframe for receiving descending control signaling；Or
Receive the n-th subframe transmission upstream data after the subframe of descending control signaling.
The value of N can be related to the network formats that user terminal is presently in.When the network that user terminal is presently in
When standard is FDD (frequency division multiplexing), N=4.When the network formats that user terminal is presently in are TDD (time division multiplexing), N >=
4。
For example, the subframe for receiving descending control signaling is that subframe M is pressed in subframe M then when time slot indication information element is invalid
Downlink data is received according to the resource of descending control signaling instruction；The 4th subframe after subframe M sends upstream data.
From the above can be with, in the prior art, base station scheduling user terminal therefore is existed using a subframe as unit
The longer problem of scheduling user terminal time delay.
In embodiments of the present invention, after receiving descending control signaling, time slot is obtained from descending control signaling and is referred to
Show cell, to know the time slot for applying the descending control signaling, and transmits class according to the data that descending control signaling instruction executes
Type, carries out upstream data transmission in corresponding time slot or downlink data receives, so as to realize in a time slot to user's end
End is scheduled, and shortens the time delay of base station scheduling user terminal.
Referring to Fig. 2, one of embodiment of the present invention scheduling of user terminals device 20 is given, comprising: first receives list
Member 201, descending control signaling acquiring unit 202,203 second receiving unit 204 of time slot indication information element acquiring unit and transmission
Unit 205, in which:
First receiving unit 201, for receiving the signal in the subframe that base station issues；
Descending control signaling acquiring unit 202 obtains and the user terminal for first time slot in the subframe
Corresponding descending control signaling；
Time slot indication information element acquiring unit 203, it is described for obtaining time slot indication information element from the descending control signaling
Time slot indication information element is used to indicate the time slot using the descending control signaling；
Second receiving unit 204, for being answered described when the descending control signaling indicates that executing downlink data receives
Downlink data is received with the time slot of the descending control signaling, and in the resource of descending control signaling instruction；
Transmission unit 205 is used for when the descending control signaling indicates that executing upstream data sends, described receiving
I-th of time slot after descending control signaling sends upstream data.
In specific implementation, the time slot indication information element is 1 bit information element, is used to indicate using the descending control signaling
Time slot be the subframe first time slot.
In specific implementation, the time slot indication information element is more bit information elements, when being used to indicate first of the subframe
X-th of time slot after gap.
In specific implementation, second receiving unit 204 can be also used for when the time slot indication information element it is invalid, or from
When the time slot indication information element having not been obtained in the descending control signaling, in the subframe for receiving the descending control signaling according to
Downlink data is received according to the resource of descending control signaling instruction；
The transmission unit 205 can be also used for when the time slot indication information element is invalid, or from the descending control signaling
In when the time slot indication information element has not been obtained, the n-th subframe after the subframe for receiving the descending control signaling is sent
Upstream data.
In specific implementation, when the user terminal is in FDD standard, the value of i is any of 3,4,5,6；
When the user terminal is in TDD standard, i >=3.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (14)
1. a kind of scheduling of user terminals method characterized by comprising
Obtain descending control signaling corresponding with the user terminal；
Time slot indication information element is obtained from the descending control signaling, the time slot indication information element is used to indicate using the downlink
The time slot of control signaling；
When the descending control signaling indicate execute downlink data receive when, it is described using the descending control signaling when
Gap, and downlink data is received in the resource of descending control signaling instruction；
When the descending control signaling indicates that executing upstream data sends, after receiving the descending control signaling the
I time slot sends upstream data.
2. scheduling of user terminals method as described in claim 1, which is characterized in that the acquisition is corresponding with the user terminal
Descending control signaling, comprising:
Receive the PDCCH that base station issues；It is temporarily marked from the PDCCH according to the corresponding cell-radio network of the user terminal
Know and obtains corresponding descending control signaling；The PDCCH includes in a time slot in the subframe that the base station issues.
3. scheduling of user terminals method as claimed in claim 2, which is characterized in that the time slot indication information element is 1 bit letter
Member.
4. scheduling of user terminals method as claimed in claim 3, which is characterized in that when the time slot indication information element is effective,
The time slot indication information element is used to indicate first time slot using the time slot of the descending control signaling for the subframe.
5. scheduling of user terminals method as claimed in claim 2, which is characterized in that the time slot indication information element is more bits letter
Member.
6. scheduling of user terminals method as claimed in claim 5, which is characterized in that the time slot indication information element is used to indicate institute
State the time slot of descending control signaling are as follows: x-th of time slot after first time slot of the subframe, x are time slot instruction letter
The value of member.
7. scheduling of user terminals method as described in claim 1, which is characterized in that further include:
When the time slot indication information element is invalid, or when having not been obtained from the descending control signaling to the time slot indication information element,
According to the resource reception downlink data of descending control signaling instruction in the subframe for receiving the descending control signaling, or
Receive the n-th subframe transmission upstream data after the subframe of the descending control signaling.
8. scheduling of user terminals method as described in claim 1, which is characterized in that when the user terminal is in FDD standard
When, the value of i is any of 3,4,5,6；When the user terminal is in TDD standard, i >=3.
9. a kind of scheduling of user terminals device characterized by comprising
Descending control signaling acquiring unit, for obtaining descending control signaling corresponding with the user terminal；
Time slot indication information element acquiring unit, for obtaining time slot indication information element from the descending control signaling, the time slot refers to
Show that cell is used to indicate the time slot using the descending control signaling；
Second receiving unit is used for when the descending control signaling indicates that executing downlink data receives, described in the application
The time slot of descending control signaling, and downlink data is received in the resource of descending control signaling instruction；
Transmission unit, for receiving the downlink control when the descending control signaling indicates that executing upstream data sends
I-th of time slot after signaling processed sends upstream data.
10. scheduling of user terminals device as claimed in claim 9, which is characterized in that the descending control signaling acquiring unit,
The PDCCH issued for receiving base station；It is temporarily marked from the PDCCH according to the corresponding cell-radio network of the user terminal
Know and obtains corresponding descending control signaling；；The PDCCH includes a time slot in the subframe that the base station issues
In.
11. scheduling of user terminals device as claimed in claim 10, which is characterized in that the time slot indication information element is 1 bit
Cell is used to indicate first time slot using the time slot of the descending control signaling for the subframe.
12. scheduling of user terminals device as claimed in claim 10, which is characterized in that the time slot indication information element is more bits
Cell, x-th of time slot being used to indicate after first time slot of the subframe.
13. scheduling of user terminals device as claimed in claim 9, which is characterized in that second receiving unit is also used to work as
The time slot indication information element is invalid, or when having not been obtained from the descending control signaling to the time slot indication information element, is receiving
Downlink data is received according to the resource of descending control signaling instruction in the subframe of the descending control signaling；
It is invalid that the transmission unit is also used to work as the time slot indication information element, or has not been obtained from the descending control signaling to institute
When stating time slot indication information element, the n-th subframe after the subframe for receiving the descending control signaling sends upstream data.
14. scheduling of user terminals device as claimed in claim 9, which is characterized in that when the user terminal is in FDD standard
When, the value of i is any of 3,4,5,6；When the user terminal is in TDD standard, i >=3.
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| CN201910722587.XA CN110267352B (en) | 2015-12-01 | 2015-12-01 | User terminal scheduling method and device |
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| CN201910722587.XA CN110267352B (en) | 2015-12-01 | 2015-12-01 | User terminal scheduling method and device |
| CN201510868781.0A CN106817773B (en) | 2015-12-01 | 2015-12-01 | Scheduling of user terminals method and device |
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| CN111867014B (en) * | 2019-04-30 | 2022-06-17 | 大唐移动通信设备有限公司 | Scheduling indication method, terminal and network side equipment |
| CN112583557B (en) * | 2019-09-30 | 2023-06-23 | 大唐移动通信设备有限公司 | Energy-saving information transmission method, base station and terminal |
| CN112584470A (en) * | 2019-09-30 | 2021-03-30 | 大唐移动通信设备有限公司 | Energy-saving information transmission method, terminal and network side equipment |
| CN115801111B (en) * | 2023-02-10 | 2023-04-25 | 成都戎星科技有限公司 | Method for realizing MF-TDMA signal user time slot data separation |
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| ZTE: "L1 considerations on latency reduction", 《3GPP TSG RAN WG1 MEETING #83》 * |
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| Publication number | Publication date |
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| CN106817773B (en) | 2019-07-19 |
| CN110267352B (en) | 2021-09-07 |
| CN106817773A (en) | 2017-06-09 |
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