CN109121464A - downlink HARQ feedback method and device, terminal and base station - Google Patents
downlink HARQ feedback method and device, terminal and base station Download PDFInfo
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- CN109121464A CN109121464A CN201780000250.7A CN201780000250A CN109121464A CN 109121464 A CN109121464 A CN 109121464A CN 201780000250 A CN201780000250 A CN 201780000250A CN 109121464 A CN109121464 A CN 109121464A
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- base station
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- downlink data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
- H04L1/0073—Special arrangements for feedback channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1806—Go-back-N protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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Abstract
Present disclose provides downlink HARQ feedback method and devices, terminal and base station, wherein, the described method includes: sending terminal ability information to base station, terminal ability information includes: the first terminal ability information that low time delay business is supported for characterizing terminal, with the second terminal ability information for characterizing terminal request base station itself to configure the object feedback type corresponding to low time delay business, when object feedback type is used to indicate HARQ result of the terminal to base station feedback downlink data, the independent downstream feedback channel that uses base station to configure for terminal；Receive the feedback kind that base station return is terminal configuration；When feedback kind is consistent with object feedback type, then by base station be itself configuration HARQ result from downstream feedback channel to base station feedback downlink data.In the disclosure, terminal uses the independent downstream feedback channel corresponding to low time delay business quickly to carry out the HARQ result feedback of downlink data, realizes low time delay synchronous feedback, meets the low time delay business demand in 5G system.
Description
Technical field
This disclosure relates to the communications field more particularly to downlink HARQ feedback method and device, terminal and base station.
Background technique
In the related technology, PHICH channel is defined in LTE (Long Term Evolution, long term evolution) system
(Physical Hybrid ARQ Indicator Channel, physical mixed automatic re-transmission indicating channel), for feeding back with son
Frame is that (Hybrid Automatic Repeat reQuest, mixed automatic retransfer are asked by the HARQ of downlink data of thread
Ask) result.
But in 5G, that is, NR (New Radio) system, thread can use different lists according to the ability of terminal
Position, therefore, downlink HARQ feedback mode in the related technology can not be preferably suitable for 5G system.
Summary of the invention
In view of this, present disclose provides downlink HARQ feedback method and device, to solve deficiency in the related technology.
According to the first aspect of the embodiments of the present disclosure, a kind of downlink HARQ feedback method is provided, the method is used for terminal,
Include:
Terminal ability information is sent to base station, the terminal ability information includes: when supporting low for characterizing the terminal
Prolong the first terminal ability information of business, and is configured for itself corresponding to described low for characterizing base station described in the terminal request
The second terminal ability information of the object feedback type of time delay business, the object feedback type are used to indicate the terminal to institute
When stating the hybrid automatic repeat-request HARQ result of base station feedback downlink data, the base station is used to configure for the terminal only
Vertical downstream feedback channel；
Receive the feedback kind that the base station return is the terminal configuration；
It is then the described of itself configuration by the base station when the feedback kind is consistent with the object feedback type
HARQ result of the downstream feedback channel to the base station feedback downlink data.
Optionally, the transmission terminal ability information is to base station, comprising:
It is connected by wireless heterogeneous networks and establishes request transmission terminal ability information to base station.
Optionally, it is described by the downstream feedback channel that the base station is itself configuration to the base station feedback downlink
The HARQ result of data, comprising:
The target dispatch unit that the base station is determined based on the terminal ability information is obtained, the target dispatch unit is
HARQ result from the terminal to the base station feedback downlink data when time domain unit that uses；
Determine that the feedback delay of the HARQ result of feeding back downlink data, the feedback delay are with the target dispatch unit
Unit；
In the downstream feedback channel that the base station is itself configuration, in institute as unit of the target dispatch unit
State HARQ result of the time-domain position corresponding to feedback delay to the base station feedback downlink data.
Optionally, further includes:
When the feedback kind and the object feedback Type-Inconsistencies, then indicated by physical mixed autonomous retransmission
HARQ result of the PHICH channel to the base station feedback downlink data.
According to the second aspect of an embodiment of the present disclosure, a kind of downlink HARQ feedback method is provided, the method is used for base station,
The described method includes:
The terminal ability information that terminal is sent is received, the terminal ability information includes: to support for characterizing the terminal
The first terminal ability information of low time delay business, and correspond to institute for characterizing base station described in the terminal request for itself configuration
The second terminal ability information of the object feedback type of low time delay business is stated, the object feedback type is used to indicate the terminal
To the base station feedback downlink data hybrid automatic repeat-request HARQ result when, use the base station to configure for the terminal
Independent downstream feedback channel；
It is that the terminal configures feedback kind based on the terminal capability parameter；
The feedback kind is sent to the terminal.
Optionally, further includes:
When the feedback kind is consistent with the object feedback type, the downstream feedback letter is configured for the terminal
Road.
It is optionally, described to configure the downstream feedback channel for the terminal, comprising:
Target dispatch unit is determined based on the terminal ability information, and the target dispatch unit is the terminal to described
The time domain unit used when the HARQ result of base station feedback downlink data；
The downstream feedback channel of at least corresponding bit of each target dispatch unit is configured for the terminal, it is described
Downstream feedback channel is served only for the terminal to the HARQ result of the base station feedback downlink data.
According to the third aspect of an embodiment of the present disclosure, a kind of downlink HARQ feedback device is provided, described device is used for terminal,
Described device includes:
First sending module is configured as sending terminal ability information to base station, and the terminal ability information includes: to be used for
It characterizes the terminal and supports the first terminal ability information of low time delay business, and be for characterizing base station described in the terminal request
Itself configuration corresponds to the second terminal ability information of the object feedback type of the low time delay business, the object feedback type
When being used to indicate hybrid automatic repeat-request HARQ result of the terminal to the base station feedback downlink data, using the base
It stands as the independent downstream feedback channel of terminal configuration；
First receiving module is configured as receiving the feedback kind that the base station return is the terminal configuration；
First feedback module is configured as then passing through institute when the feedback kind is consistent with the object feedback type
State base station be itself configuration HARQ result from the downstream feedback channel to the base station feedback downlink data.
Optionally, first sending module includes:
Sending submodule is configured as connecting by wireless heterogeneous networks and establishes request transmission terminal ability information to base
It stands.
Optionally, first feedback module includes:
Acquisition submodule is configured as obtaining the target dispatch list that the base station is determined based on the terminal ability information
Position, the time domain list that the target dispatch unit uses when being HARQ result of the terminal to the base station feedback downlink data
Position；
First determines submodule, is configured to determine that the feedback delay of the HARQ result of feeding back downlink data, the feedback
Time delay is as unit of the target dispatch unit；
Submodule is fed back, is configured as in the downstream feedback channel that the base station is itself configuration, with the mesh
Marking thread is that unit time-domain position corresponding to the feedback delay is tied to the HARQ of the base station feedback downlink data
Fruit.
Optionally, further includes:
Second feedback module is configured as then passing through when the feedback kind and the object feedback Type-Inconsistencies
Physical mixed autonomous retransmission indicates HARQ result of the PHICH channel to the base station feedback downlink data.
According to a fourth aspect of embodiments of the present disclosure, a kind of downlink HARQ feedback device is provided, described device is used for base station,
Described device includes:
Second receiving module is configured as receiving the terminal ability information that terminal is sent, and the terminal ability information includes:
The first terminal ability information of low time delay business is supported for characterizing the terminal, and for characterizing base described in the terminal request
It stands and corresponds to the second terminal ability information of the object feedback type of the low time delay business, the object feedback for itself configuration
When type is used to indicate hybrid automatic repeat-request HARQ result of the terminal to the base station feedback downlink data, using institute
State the independent downstream feedback channel that base station is terminal configuration；
Feedback kind configuration module is configured as being that the terminal configures feedback kind based on the terminal capability parameter；
Second sending module is configured as sending the feedback kind to the terminal.
Optionally, further includes:
Feedback channel configuration module is configured as when the feedback kind is consistent with the object feedback type, for institute
It states terminal and configures the downstream feedback channel.
Optionally, the feedback channel configuration module includes:
Second determines submodule, is configured as determining target dispatch unit, the target based on the terminal ability information
The time domain unit that thread uses when being HARQ result of the terminal to the base station feedback downlink data；
Feedback channel configures submodule, is configured as at least corresponding to for each target dispatch unit of terminal configuration
The downstream feedback channel of one bit, the downstream feedback channel are served only for the terminal to the base station feedback downlink data
HARQ result.
According to a fifth aspect of the embodiments of the present disclosure, a kind of terminal is provided, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Terminal ability information is sent to base station, the terminal ability information includes: when supporting low for characterizing the terminal
Prolong the first terminal ability information of business, and is configured for itself corresponding to described low for characterizing base station described in the terminal request
The second terminal ability information of the object feedback type of time delay business, the object feedback type are used to indicate the terminal to institute
When stating the hybrid automatic repeat-request HARQ result of base station feedback downlink data, the base station is used to configure for the terminal only
Vertical downstream feedback channel；
Receive the feedback kind that the base station return is the terminal configuration；
It is then the described of itself configuration by the base station when the feedback kind is consistent with the object feedback type
HARQ result of the downstream feedback channel to the base station feedback downlink data.
According to a sixth aspect of an embodiment of the present disclosure, a kind of base station is provided, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
The terminal ability information that terminal is sent is received, the terminal ability information includes: to support for characterizing the terminal
The first terminal ability information of low time delay business, and correspond to institute for characterizing base station described in the terminal request for itself configuration
The second terminal ability information of the object feedback type of low time delay business is stated, the object feedback type is used to indicate the terminal
To the base station feedback downlink data hybrid automatic repeat-request HARQ result when, use the base station to configure for the terminal
Independent downstream feedback channel；
It is that the terminal configures feedback kind based on the terminal capability parameter；
The feedback kind is sent to the terminal.
The technical scheme provided by this disclosed embodiment can include the following benefits:
In the embodiment of the present disclosure, the terminal ability information of itself can be sent to base station by terminal, be based on by base station described
Terminal ability information is that the terminal configures feedback kind.If base station is the feedback kind and terminal itself of terminal configuration
The object feedback type corresponding to low time delay business of request is consistent, then the terminal can be itself configuration by the base station
HARQ result from independent downstream feedback channel to the base station feedback downlink data.By the above process, terminal use pair
It should be fed back in the HARQ result that the independent downstream feedback channel of low time delay business quickly carries out downlink data, realize low time delay
Synchronous feedback meets the low time delay business demand in 5G system.
In the embodiment of the present disclosure, terminal is when passing through the HARQ result of downstream feedback channel feedback downlink data, optionally,
The target dispatch unit that the available base station of terminal is determined based on terminal ability information, the target dispatch unit be the terminal to
The time domain unit used when the HARQ result of the base station feedback downlink data.Further, it is determined that feeding back downlink data
The feedback delay of HARQ result, and the feedback delay is as unit of the target dispatch unit.And the base station be itself
In the downstream feedback channel of configuration, the time domain position corresponding to the feedback delay as unit of the target dispatch unit
Set the HARQ result to the base station feedback downlink data.In the above process, since target dispatch unit is according to terminal capability
What information determined, and indicate that the terminal supports low time delay business in terminal ability information, therefore, target dispatch unit can be compared with
Small, the HARQ result that terminal can carry out downlink data quickly through downstream feedback channel is fed back.
In the embodiment of the present disclosure, when the feedback kind and the object feedback Type-Inconsistencies, terminal can pass through
HARQ result of the PHICH channel to the base station feedback downlink data.By the above process, even if base station is the anti-of terminal configuration
It presents type and corresponds to the object feedback Type-Inconsistencies of low time delay, terminal still can be anti-to the base station by PHICH channel
Present the HARQ result of downlink data, it is ensured that base station can normally receive the HARQ result of downlink data.
In the embodiment of the present disclosure, the terminal ability information that base station can be sent based on terminal is that the terminal configures feedback sort
Type, and the feedback kind is sent to the terminal.It is subsequent to be selected properly by the terminal according to the feedback kind that base station configures
Channel carry out downlink data HARQ result feedback.Above-mentioned downlink HARQ feedback process can be adapted for 5G system, and dispatch
Unit can be no longer limited to subframe.
In the embodiment of the present disclosure, base station can first be based on terminal energy when configuring independent downstream feedback channel for terminal
Force information determines that target dispatch unit, the target dispatch unit are HARQ of the terminal to the base station feedback downlink data
The time domain unit used when as a result.Further, each target dispatch unit is configured for the terminal at least correspond to one
The downstream feedback channel of bit, and the downstream feedback channel is served only for the terminal to the base station feedback downlink data
HARQ result.By the above process, the downstream feedback channel for terminal configuration passes through at least one to each target dispatch unit
A bit feeds back to carry out the HARQ result of downlink data, and the downstream feedback channel is served only for carrying out the HARQ knot of downlink data
Fruit feedback, so as to which the HARQ result of downlink data is quickly fed back to base station, realizes low time delay synchronous feedback, meets
Low time delay business demand in 5G system.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of disclosure downlink HARQ result feedback schematic diagram of a scenario shown according to an exemplary embodiment；
Fig. 2 is a kind of disclosure downlink HARQ result feedback method flow chart shown according to an exemplary embodiment；
Fig. 3 is the disclosure another downlink HARQ result feedback method flow chart shown according to an exemplary embodiment；
Fig. 4 is the disclosure another downlink HARQ result feedback schematic diagram of a scenario shown according to an exemplary embodiment；
Fig. 5 is the disclosure another downlink HARQ result feedback method flow chart shown according to an exemplary embodiment；
Fig. 6 is the disclosure another downlink HARQ result feedback method flow chart shown according to an exemplary embodiment；
Fig. 7 is the disclosure another downlink HARQ result feedback method flow chart shown according to an exemplary embodiment；
Fig. 8 is the disclosure another downlink HARQ result feedback method flow chart shown according to an exemplary embodiment；
Fig. 9 is the disclosure another downlink HARQ result feedback schematic diagram of a scenario shown according to an exemplary embodiment；
Figure 10 is the disclosure another downlink HARQ result feedback method flow chart shown according to an exemplary embodiment；
Figure 11 is a kind of disclosure downlink HARQ result feedback device block diagram shown according to an exemplary embodiment；
Figure 12 is the disclosure another downlink HARQ result feedback device block diagram shown according to an exemplary embodiment；
Figure 13 is the disclosure another downlink HARQ result feedback device block diagram shown according to an exemplary embodiment；
Figure 14 is the disclosure another downlink HARQ result feedback device block diagram shown according to an exemplary embodiment；
Figure 15 is the disclosure another downlink HARQ result feedback device block diagram shown according to an exemplary embodiment；
Figure 16 is the disclosure another downlink HARQ result feedback device block diagram shown according to an exemplary embodiment；
Figure 17 is the disclosure another downlink HARQ result feedback device block diagram shown according to an exemplary embodiment；
Figure 18 is an a kind of disclosure structural schematic diagram of terminal shown according to an exemplary embodiment；
Figure 19 is an a kind of disclosure structural schematic diagram of base station shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is only to be not intended to be limiting the disclosure merely for for the purpose of describing particular embodiments in the term of disclosure operation.
The "an" of the singular run in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless the context clearly indicates other meaning.It is also understood that the term "and/or" run herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where disclosure range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, as run at this word " if " can be construed to " and ... when " or " when ...
When " or " in response to determination ".
A kind of downlink HARQ feedback schematic diagram of a scenario is provided in the embodiment of the present disclosure, as shown in Figure 1, terminal 11 is by terminal
Ability information is sent to base station 12, and base station 12 is based on the terminal ability information and is that terminal 11 configures feedback kind, and by the feedback
Type returns to terminal 11.
If base station 12 is the target corresponding with low time delay business that the feedback kind that terminal 11 configures and terminal 11 are requested
Feedback kind is consistent, then terminal 11 is by independent downstream feedback channel that base station 12 is itself configuration to 12 feeding back downlink of base station
The HARQ result of data.Otherwise, terminal 11 uses HARQ result of the PHICH channel to 12 feeding back downlink data of base station.
Above-mentioned downlink HARQ feedback method is further described from terminal side below.
The downlink HARQ result feedback method that the embodiment of the present disclosure provides can be used for terminal, for example, smart phone, plate
Computer, personal digital assistant (Personal Digital Assistant, PDA) etc..As shown in Fig. 2, Fig. 2 is according to an example
Property implement a kind of downlink HARQ result feedback method for exemplifying, comprising the following steps:
In a step 101, terminal ability information is sent to base station, and the terminal ability information includes: described for characterizing
Terminal supports the first terminal ability information of low time delay business, and for characterizing base station described in the terminal request as itself configuration
The second terminal ability information of object feedback type corresponding to the low time delay business, the object feedback type are used to indicate
Hybrid automatic repeat-request HARQ result from the terminal to the base station feedback downlink data when, it is described for using the base station
The independent downstream feedback channel of terminal configuration；
In a step 102, the feedback kind that the base station return is the terminal configuration is received；
It in step 103, is then certainly by the base station when the feedback kind is consistent with the object feedback type
HARQ result of the downstream feedback channel of body configuration to the base station feedback downlink data.
In above-described embodiment, the terminal ability information of itself can be sent to base station by terminal, be based on the end by base station
Holding ability information is that the terminal configures feedback kind.If base station is that the feedback kind and terminal of terminal configuration itself are asked
The object feedback type corresponding to low time delay business asked is consistent, then the terminal can be itself configuration by the base station
HARQ result of the independent downstream feedback channel to the base station feedback downlink data.By the above process, terminal is using correspondence
The HARQ result feedback of downlink data is quickly carried out in the independent downstream feedback channel of low time delay business, it is same to realize low time delay
Step feedback, meets the low time delay business demand in 5G system.
For above-mentioned steps 101, the terminal ability information may include: first terminal ability information and second terminal energy
Force information.Wherein, the first terminal ability information supports low time delay business, such as URLLC scene for characterizing the terminal
Under unmanned, industrial automation etc. need the business of low time delay, highly reliable connection.The second terminal ability information is used for
Characterizing base station described in the terminal request is the object feedback type that itself configuration corresponds to low time delay business, the object feedback
When type is used to indicate HARQ result of the terminal to the base station feedback downlink data, use the base station for the terminal
The independent downstream feedback channel of configuration, i.e., the described second terminal ability information can characterize terminal and support and request base station to be certainly
Body configures the object feedback type.
In this step, the terminal can be connected by RRC (Radio Resource Control, wireless heterogeneous networks)
It establishes request and above-mentioned terminal ability information is sent to base station.The above-mentioned terminal ability information that base station can be sent according to terminal combines
The resource capability of itself is that terminal configures feedback kind.
For above-mentioned steps 102, it is the anti-of the terminal configuration that terminal, which directly receives base station according to the relevant technologies and sends,
Present type.
For above-mentioned steps 103, if the feedback kind is consistent with the object feedback type, the terminal is at this time
Without demodulating PHICH channel, but the downstream feedback channel that the base station is itself configuration can be received, and by described
HARQ result of the downstream feedback channel to the base station feedback downlink data.
In one embodiment, optionally, as shown in figure 3, Fig. 3 is shown on the basis of embodiment according to Fig.2,
Another downlink HARQ result feedback method flow chart, step 103 may include:
In step 103-1, the target dispatch unit that the base station is determined based on the terminal ability information is obtained.
Wherein, it is used when the target dispatch unit is HARQ result of the terminal to the base station feedback downlink data
Time domain unit.
Optionally, the target dispatch unit can be mini-slot (mini time slot), slot (time slot) or subframe,
Wherein, the occupied duration of mini-slot is less than the occupied duration of slot, and the occupied duration of slot is less than subframe occupancy again
Duration.In the embodiment of the present disclosure, in order to meet low time delay business demand, base station can be according to terminal ability information, will be described
Target dispatch unit is determined as mini-slot or slot.
In step 103-2, the feedback delay of the HARQ result of feeding back downlink data is determined, the feedback delay is with described
Target dispatch unit is unit.
In the related technology, the feedback delay of terminal is as unit of subframe, and in this step, terminal is determining feedback delay
When, it needs as unit of the target dispatch unit, i.e. the determining feedback delay of terminal is with target dispatch unit such as mini-
Slot or slot is unit.In the embodiment of the present disclosure, terminal can determine the feedback delay, such as feed back according to self-ability
Time delay be n+3 or n+4, unit be mini-slot or slot, n be the mini-slot of the downlink data received serial number or
The serial number of slot.
In step 103-3, in the downstream feedback channel that the base station is itself configuration, with the target dispatch
Unit is HARQ result of the unit time-domain position corresponding to the feedback delay to the base station feedback downlink data.
In this step, terminal equally uses the target dispatch unit for unit in downstream feedback channel, and described
HARQ result of the time-domain position corresponding to feedback delay to the base station feedback downlink data.
Downlink data, that is, base station is sent to the data of terminal, and HARQ result can be (not true for ACK (confirmation) signal or NACK
Recognize) signal.When downlink data incoming terminal, terminal carries out error detection to it according to the relevant technologies, if receiving correct, HARQ result
For ack signal, then HARQ result is NACK signal to mistake.When base station receives ack signal, new data are just sent to terminal, it is no
Then base station retransmits the data of last time transmission.
Such as shown in Fig. 4, target dispatch unit is as unit of mini-slot, feedback delay n+3, then terminal is directed to base
Stand send downlink data the 0th mini-slot and the 1st mini-slot HARQ as a result, can send upstream data
The 3rd mini-slot and the 4th mini-slot in feed back to base station.
In above-described embodiment, since target dispatch unit is determined according to terminal ability information, and terminal ability information
The middle instruction terminal supports low time delay business, and therefore, target dispatch unit can be smaller, and terminal can be quickly through downlink
Feedback channel carries out the HARQ result feedback of downlink data, it is ensured that base station can receive downlink HARQ result.
In one embodiment, above-mentioned downlink HARQ feedback method is as shown in figure 5, Fig. 5 is embodiment according to Fig.2,
On the basis of another downlink HARQ result feedback method flow chart that shows, can also include:
At step 104, when the feedback kind and the object feedback Type-Inconsistencies, then certainly by physical mixed
Dynamic HARQ result of the retransmission instruction PHICH channel to the base station feedback downlink data.
In this step, if terminal ability information and the resource information of itself that base station is sent based on terminal are the terminal
The feedback kind of configuration and the object feedback Type-Inconsistencies, i.e. independence corresponding with low service delay is not configured in base station
Downstream feedback channel to terminal, then terminal can be according to the relevant technologies, yet by PHICH (Physical Hybrid ARQ
Indicator Channel, physical mixed autonomous retransmission instruction) HARQ result from channel to the base station feedback downlink data.
In above-described embodiment, even if base station is the feedback kind of terminal configuration and the object feedback type for corresponding to low time delay
Inconsistent, terminal still can be by PHICH channel to the HARQ result of the base station feedback downlink data, it is ensured that base station can be just
Often receive the HARQ result of downlink data.
Above-mentioned downlink HARQ feedback method is further described from base station side below.
The downlink HARQ result feedback method that the embodiment of the present disclosure provides can be also used for base station.As shown in fig. 6, Fig. 6 is
Another kind downlink HARQ result feedback method shown according to an exemplary embodiment, comprising the following steps:
In step 201, the terminal ability information that terminal is sent is received, the terminal ability information includes: for characterizing
The terminal supports the first terminal ability information of low time delay business, and for characterizing base station described in the terminal request as itself
Configuration corresponds to the second terminal ability information of the object feedback type of the low time delay business, and the object feedback type is used for
When indicating hybrid automatic repeat-request HARQ result of the terminal to the base station feedback downlink data, use the base station for
The independent downstream feedback channel of the terminal configuration；
It in step 202, is that the terminal configures feedback kind based on the terminal capability parameter；
In step 203, the feedback kind is sent to the terminal.
In above-described embodiment, the terminal ability information that base station can be sent based on terminal is that the terminal configures feedback sort
Type, and the feedback kind is sent to the terminal.It is subsequent to be selected properly by the terminal according to the feedback kind that base station configures
Channel carry out downlink data HARQ result feedback.Above-mentioned downlink HARQ feedback process can be adapted for 5G system, and dispatch
Unit can be no longer limited to subframe.
For above-mentioned steps 201, base station can receive the terminal ability information that the terminal is sent according to the relevant technologies.Institute
Stating terminal ability information may include: first terminal ability information and second terminal ability information.
Wherein, the first terminal ability information supports low time delay business, such as URLL scene for characterizing the terminal
Under unmanned, industrial automation etc. need the business of low time delay, highly reliable connection.The second terminal ability information is used for
Characterizing base station described in the terminal request is the object feedback type that itself configuration corresponds to low time delay business, the object feedback
When type is used to indicate HARQ result of the terminal to the base station feedback downlink data, use the base station for the terminal
The independent downstream feedback channel of configuration, i.e., the described second terminal ability information can characterize terminal and support and request base station to be certainly
Body configures the object feedback type.
For above-mentioned steps 202, base station will preferentially have sent above-mentioned terminal capability letter when configuring feedback kind for terminal
The feedback kind of the terminal of breath is configured to object feedback type.Optionally, if base station can not be incited somebody to action based on the resource information of itself
It, can also be by the feedback when feedback kind of the terminal is configured to correspond to the object feedback type of low time delay business
Type configuration is common feedback type.The common feedback type is used to indicate terminal according to the relevant technologies, using PHICH channel
The HARQ result of feeding back downlink data.
For above-mentioned steps 203, base station is after having configured feedback kind for terminal, according to the relevant technologies by the feedback sort
Type is sent to the terminal.
In one embodiment, if base station is that the feedback kind that terminal configures is consistent with the object feedback type,
Then in order to ensure terminal can quickly carry out low time delay synchronous feedback, then the base station can be under terminal configuration is independent
Row feedback channel.I.e. above-mentioned downlink HARQ feedback method, as shown in fig. 7, on the basis of Fig. 7 is embodiment according to figure 6
Another downlink HARQ result feedback method flow chart shown can also include:
In step 204, when the feedback kind is consistent with the object feedback type, for described in terminal configuration
Downstream feedback channel.
In this step, the base station needs to configure the independent downstream feedback channel for corresponding to low time delay for terminal.It is optional
Ground, step 204 is as shown in figure 8, Fig. 8 is another downlink HARQ result shown on the basis of embodiment according to figure 7
Feedback method flow chart may include:
In step 204-1, target dispatch unit is determined based on the terminal ability information.
Wherein, it is used when the target dispatch unit is HARQ result of the terminal to the base station feedback downlink data
Time domain unit.
In this step, base station can determine target dispatch unit based on the terminal ability information that terminal reports, optionally,
The target dispatch unit can be mini-slot, slot or subframe.In the embodiment of the present disclosure, in order to meet low time delay business
The target dispatch unit can be determined as mini-slot or slot according to terminal ability information by demand, base station.
In step 204-2, configured under at least corresponding bit of each target dispatch unit for the terminal
Row feedback channel, the downstream feedback channel are served only for the terminal to the HARQ result of the base station feedback downlink data.
In this step, base station is in the downstream feedback channel of terminal configuration, and each target dispatch unit is at least corresponding
The HARQ result of the downstream feedback channel of one bit, i.e., each target dispatch unit can be by least one bit come anti-
Feedback, and the downstream feedback channel is served only for HARQ result of the terminal to the base station feedback downlink data.
As shown in Figure 9, it is assumed that target dispatch unit is mini-slot, then base station is sent to each mini-slot of terminal
Downlink data, terminal feeds back HARQ result by the downstream feedback channel.Wherein, the lower line number of each mini-slot
According to come feedback terminal whether receiving correct HARQ by least one bit as a result, if terminal receives correct, HARQ result
For ack signal, then HARQ result is NACK signal to mistake.When base station receives ack signal, new data, base are just sent to terminal
Station receives NACK signal, then base station retransmits the data of last time transmission.
In above-described embodiment, whether which is properly received downlink data for feedback terminal, thus with end
End side descending scheduling is not related, is solely dependent upon base station side uplink scheduling situation.In addition, the downstream feedback channel is with target dispatch
Unit is unit, has only taken up seldom frequency resource.Therefore, above-mentioned downlink HARQ feedback process can be adapted for 5G system,
And thread can be no longer limited to subframe.
In addition, if other terminals do not send terminal ability information to base station, or terminal ability information is had sent, but eventually
When end ability information indicates that the terminal does not support low time delay business, these terminals are still according to the relevant technologies using 5G system configuration
The HARQ result of PHICH channel feedback downlink data.
In the embodiment of the present disclosure, as shown in Figure 10, Figure 10 is another downlink shown according to an exemplary embodiment
HARQ result feedback method, comprising the following steps:
In step 301, terminal sends terminal ability information to base station by wireless resource control connection request.
Wherein, the terminal ability information includes: the first terminal energy that low time delay business is supported for characterizing the terminal
Force information, and for characterizing base station described in the terminal request as itself object feedback of the configuration corresponding to the low time delay business
The second terminal ability information of type, the object feedback type are used to indicate the terminal to the base station feedback downlink data
Hybrid automatic repeat-request HARQ result when, the independent downstream feedback channel that uses the base station to configure for the terminal.
In step 302, it is that the terminal configures feedback kind that base station, which is based on the terminal capability parameter,.
In step 303, base station sends the feedback kind to the terminal.
When the feedback kind is consistent with the object feedback type, step 304 is executed, it is no to then follow the steps 306.
In step 304, base station is that the terminal configures independent downstream feedback channel.
Configuration mode is identical as the mode of above-mentioned configurating downlink feedback channel, and details are not described herein.
In step 305, terminal is by the downstream feedback channel to the HARQ result of the base station feedback downlink data.
Within step 306, terminal passes through HARQ result of the PHICH channel to the base station feedback downlink data.
In above-described embodiment, terminal can quickly be carried out using the independent downstream feedback channel corresponding to low time delay business
The HARQ result of downlink data is fed back, and is realized low time delay synchronous feedback, is met the low time delay business demand in 5G system.When
The feedback kind and when the object feedback Type-Inconsistencies, terminal can be by PHICH channels under the base station feedback
The HARQ result of row data.Accordingly even when base station is the feedback kind of terminal configuration and the object feedback type for corresponding to low time delay
Inconsistent, terminal still can be by PHICH channel to the HARQ result of the base station feedback downlink data, it is ensured that base station can be just
Often receive the HARQ result of downlink data.
For the various method embodiments described above, for simple description, therefore, it is stated as a series of action combinations, but
Be those skilled in the art should understand that, the disclosure is not limited by the described action sequence because according to the disclosure, certain
A little steps can be performed in other orders or simultaneously.
Secondly, those skilled in the art should also know that, embodiment described in this description belongs to alternative embodiment,
Necessary to the related actions and modules not necessarily disclosure.
Corresponding with aforementioned applications function realizing method embodiment, the disclosure additionally provides application function realization device and phase
The embodiment for the terminal answered.
1, Figure 11 is a kind of downlink HARQ result feedback device shown according to an exemplary embodiment referring to Fig.1, comprising:
First sending module 410 is configured as sending terminal ability information to base station, and the terminal ability information includes:
The first terminal ability information of low time delay business is supported for characterizing the terminal, and for characterizing base described in the terminal request
It stands and corresponds to the second terminal ability information of the object feedback type of the low time delay business, the object feedback for itself configuration
When type is used to indicate hybrid automatic repeat-request HARQ result of the terminal to the base station feedback downlink data, using institute
State the independent downstream feedback channel that base station is terminal configuration；
First receiving module 420 is configured as receiving the feedback kind that the base station return is the terminal configuration；
First feedback module 430 is configured as then passing through when the feedback kind is consistent with the object feedback type
The base station be itself configuration HARQ result from the downstream feedback channel to the base station feedback downlink data.
2, Figure 12 is that another downlink HARQ result that shows on the basis of the embodiment according to shown in Figure 11 is anti-referring to Fig.1
Device block diagram is presented, first sending module 410 includes:
Sending submodule 411, be configured as by wireless heterogeneous networks connect establish request send terminal ability information to
Base station.
3, Figure 13 is that another downlink HARQ result that shows on the basis of the embodiment according to shown in Figure 11 is anti-referring to Fig.1
Device block diagram is presented, first feedback module 430 includes:
Acquisition submodule 431 is configured as obtaining the target dispatch that the base station is determined based on the terminal ability information
Unit, the time domain list that the target dispatch unit uses when being HARQ result of the terminal to the base station feedback downlink data
Position；
First determines submodule 432, is configured to determine that the feedback delay of the HARQ result of feeding back downlink data, described anti-
Time delay is presented as unit of the target dispatch unit；
Submodule 433 is fed back, is configured as in the downstream feedback channel that the base station is itself configuration, with described
Target dispatch unit is HARQ of the unit time-domain position corresponding to the feedback delay to the base station feedback downlink data
As a result.
4, Figure 14 is that another downlink HARQ result that shows on the basis of the embodiment according to shown in Figure 11 is anti-referring to Fig.1
Present device block diagram, further includes:
Second feedback module 440 is configured as then leading to when the feedback kind and the object feedback Type-Inconsistencies
Cross physical mixed autonomous retransmission instruction HARQ result of the PHICH channel to the base station feedback downlink data.
5, Figure 15 is another downlink HARQ result feedback device shown according to an exemplary embodiment, packet referring to Fig.1
It includes:
Second receiving module 510 is configured as receiving the terminal ability information that terminal is sent, the terminal ability information packet
It includes: supporting the first terminal ability information of low time delay business for characterizing the terminal, and for characterizing the terminal request institute
State the second terminal ability information that base station is the object feedback type that itself configuration corresponds to the low time delay business, the target
When feedback kind is used to indicate hybrid automatic repeat-request HARQ result of the terminal to the base station feedback downlink data, adopt
It is the independent downstream feedback channel of terminal configuration with the base station；
Feedback kind configuration module 520 is configured as being that the terminal configures feedback sort based on the terminal capability parameter
Type；
Second sending module 530 is configured as sending the feedback kind to the terminal.
6, Figure 16 is that another downlink HARQ result that shows on the basis of embodiment according to Figure 15 is anti-referring to Fig.1
Present device block diagram, further includes:
Feedback channel configuration module 540, be configured as be when the feedback kind is consistent with the object feedback type
The terminal configures the downstream feedback channel.
7, Figure 17 is that another downlink HARQ result that shows on the basis of the embodiment according to shown in Figure 16 is anti-referring to Fig.1
Device block diagram is presented, the feedback channel configuration module 540 includes:
Second determines submodule 541, is configured as determining target dispatch unit, the mesh based on the terminal ability information
The time domain unit that mark thread uses when being HARQ result of the terminal to the base station feedback downlink data；
Feedback channel configures submodule 542, is configured as configuring each target dispatch unit at least for the terminal
The downstream feedback channel of a corresponding bit, the downstream feedback channel are served only for the terminal to line number under the base station feedback
According to HARQ result.
For device embodiment, since it corresponds essentially to embodiment of the method, so related place is referring to method reality
Apply the part explanation of example.The apparatus embodiments described above are merely exemplary, wherein above-mentioned be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
The purpose for needing to select some or all of the modules therein to realize disclosure scheme.Those of ordinary skill in the art are not paying
Out in the case where creative work, it can understand and implement.
Correspondingly, the embodiment of the present disclosure additionally provides a kind of terminal, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Terminal ability information is sent to base station, the terminal ability information includes: when supporting low for characterizing the terminal
Prolong the first terminal ability information of business, and is configured for itself corresponding to described low for characterizing base station described in the terminal request
The second terminal ability information of the object feedback type of time delay business, the object feedback type are used to indicate the terminal to institute
When stating the hybrid automatic repeat-request HARQ result of base station feedback downlink data, the base station is used to configure for the terminal only
Vertical downstream feedback channel；
Receive the feedback kind that the base station return is the terminal configuration；
It is then the described of itself configuration by the base station when the feedback kind is consistent with the object feedback type
HARQ result of the downstream feedback channel to the base station feedback downlink data.
Figure 18 is a kind of structural schematic diagram of downlink HARQ feedback device shown according to an exemplary embodiment.Such as Figure 18
Shown, a kind of downlink HARQ feedback device 1800 shown according to an exemplary embodiment, the device 1800 can be computer,
Mobile phone, digital broadcasting terminal, messaging device, game console, tablet device, Medical Devices, body-building equipment are personal
The terminals such as digital assistants.
Referring to Fig.1 8, device 1800 may include following one or more components: processing component 1801, memory 1802,
Power supply module 1803, multimedia component 1804, audio component 1805, the interface 1806 of input/output (I/O), sensor module
1807 and communication component 1808.
The integrated operation of the usual control device 1800 of processing component 1801, such as with display, telephone call, data communication,
Camera operation and record operate associated operation.Processing component 1801 may include one or more processors 1809 to execute
Instruction, to perform all or part of the steps of the methods described above.In addition, processing component 1801 may include one or more moulds
Block, convenient for the interaction between processing component 1801 and other components.For example, processing component 1801 may include multi-media module,
To facilitate the interaction between multimedia component 1804 and processing component 1801.
Memory 1802 is configured as storing various types of data to support the operation in device 1800.These data
Example includes the instruction of any application or method for operating on device 1800, contact data, telephone book data,
Message, picture, video etc..Memory 1802 can by any kind of volatibility or non-volatile memory device or they
Combination is realized, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), it is erasable can
Program read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory
Reservoir, disk or CD.
Power supply module 1803 provides electric power for the various assemblies of device 1800.Power supply module 1803 may include power management
System, one or more power supplys and other generates, managees, and distributes the associated component of electric power with for device 1800.
Multimedia component 1804 includes the screen of one output interface of offer between described device 1800 and user.?
In some embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel,
Screen may be implemented as touch screen, to receive input signal from the user.Touch panel includes that one or more touch passes
Sensor is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding is dynamic
The boundary of work, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more
Media component 1804 includes a front camera and/or rear camera.When device 1800 is in operation mode, as shot mould
When formula or video mode, front camera and/or rear camera can receive external multi-medium data.Each preposition camera shooting
Head and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 1805 is configured as output and/or input audio signal.For example, audio component 1805 includes a wheat
Gram wind (MIC), when device 1800 is in operation mode, when such as call mode, recording mode, and voice recognition mode, microphone quilt
It is configured to receive external audio signal.The received audio signal can be further stored in memory 1802 or via communication
Component 1808 is sent.In some embodiments, audio component 1805 further includes a loudspeaker, is used for output audio signal.
I/O interface 1806 provides interface, above-mentioned peripheral interface module between processing component 1801 and peripheral interface module
It can be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and
Locking press button.
Sensor module 1807 includes one or more sensors, and the state for providing various aspects for device 1800 is commented
Estimate.For example, sensor module 1807 can detecte the state that opens/closes of device 1800, the relative positioning of component, such as institute
The display and keypad that component is device 1800 are stated, sensor module 1807 can be with detection device 1800 or device 1,800 1
The position change of a component, the existence or non-existence that user contacts with device 1800,1800 orientation of device or acceleration/deceleration and dress
Set 1800 temperature change.Sensor module 1807 may include proximity sensor, be configured in not any physics
It is detected the presence of nearby objects when contact.Sensor module 1807 can also include optical sensor, as CMOS or ccd image are sensed
Device, for being used in imaging applications.In some embodiments, which can also include acceleration sensing
Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 1808 is configured to facilitate the communication of wired or wireless way between device 1800 and other equipment.Dress
The wireless network based on communication standard, such as WiFi can be accessed by setting 1800,2G or 3G or their combination.It is exemplary at one
In embodiment, communication component 1808 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel
Information.In one exemplary embodiment, the communication component 1808 further includes near-field communication (NFC) module, to promote short distance
Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module
(UWB) technology, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 1800 can be by one or more application specific integrated circuit (ASIC), number
Signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electron component are realized, for executing the above method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 1802 of instruction, above-metioned instruction can be executed by the processor 1809 of device 1800 to complete the above method.Example
Such as, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, soft
Disk and optical data storage devices etc..
Wherein, when the instruction in the storage medium is executed by the processor, so that device 1800 is able to carry out
State downlink HARQ feedback method.
Correspondingly, the embodiment of the present disclosure additionally provides a kind of base station, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
The terminal ability information that terminal is sent is received, the terminal ability information includes: to support for characterizing the terminal
The first terminal ability information of low time delay business, and correspond to institute for characterizing base station described in the terminal request for itself configuration
The second terminal ability information of the object feedback type of low time delay business is stated, the object feedback type is used to indicate the terminal
To the base station feedback downlink data hybrid automatic repeat-request HARQ result when, use the base station to configure for the terminal
Independent downstream feedback channel；
It is that the terminal configures feedback kind based on the terminal capability parameter；
The feedback kind is sent to the terminal.
As shown in figure 19, Figure 19 is the one of a kind of downlink HARQ feedback device 1900 shown according to an exemplary embodiment
Structural schematic diagram.Device 1900 may be provided as a base station.Referring to Fig.1 9, device 1900 includes processing component 1922, wireless
Transmitting/receiving unit 1924, antenna module 1926 and the distinctive signal processing of wireless interface, processing component 1922 can
It further comprise one or more processors.
One of processor in processing component 1922 can be configured as executing above-mentioned downlink HARQ feedback side
Method.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
The foregoing is merely the preferred embodiments of the disclosure, not to limit the disclosure, all essences in the disclosure
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of disclosure protection.
Claims (16)
1. a kind of downlink HARQ feedback method, which is characterized in that the method is used for terminal, comprising:
Terminal ability information is sent to base station, the terminal ability information includes: to support low time delay industry for characterizing the terminal
The first terminal ability information of business, and correspond to the low time delay for characterizing base station described in the terminal request for itself configuration
The second terminal ability information of the object feedback type of business, the object feedback type are used to indicate the terminal to the base
When the hybrid automatic repeat-request HARQ result for feeding back downlink data of standing, the base station is used to configure for the terminal independent
Downstream feedback channel；
Receive the feedback kind that the base station return is the terminal configuration；
It is then the downlink of itself configuration by the base station when the feedback kind is consistent with the object feedback type
HARQ result of the feedback channel to the base station feedback downlink data.
2. the method according to claim 1, wherein the transmission terminal ability information is to base station, comprising:
It is connected by wireless heterogeneous networks and establishes request transmission terminal ability information to base station.
3. the method according to claim 1, wherein the downlink configured by the base station for itself
HARQ result of the feedback channel to the base station feedback downlink data, comprising:
The target dispatch unit that the base station is determined based on the terminal ability information is obtained, the target dispatch unit is described
HARQ result from terminal to the base station feedback downlink data when time domain unit that uses；
Determine that the feedback delay of the HARQ result of feeding back downlink data, the feedback delay are single with the target dispatch unit
Position；
In the downstream feedback channel that the base station is itself configuration, described anti-as unit of the target dispatch unit
Present HARQ result of the time-domain position corresponding to time delay to the base station feedback downlink data.
4. method according to claim 1-3, which is characterized in that further include:
When the feedback kind and the object feedback Type-Inconsistencies, then PHICH is indicated by physical mixed autonomous retransmission
HARQ result of the channel to the base station feedback downlink data.
5. a kind of downlink HARQ feedback method, which is characterized in that the method is used for base station, which comprises
The terminal ability information that terminal is sent is received, the terminal ability information includes: when supporting low for characterizing the terminal
Prolong the first terminal ability information of business, and is configured for itself corresponding to described low for characterizing base station described in the terminal request
The second terminal ability information of the object feedback type of time delay business, the object feedback type are used to indicate the terminal to institute
When stating the hybrid automatic repeat-request HARQ result of base station feedback downlink data, the base station is used to configure for the terminal only
Vertical downstream feedback channel；
It is that the terminal configures feedback kind based on the terminal capability parameter；
The feedback kind is sent to the terminal.
6. according to the method described in claim 5, it is characterized by further comprising:
When the feedback kind is consistent with the object feedback type, the downstream feedback channel is configured for the terminal.
7. according to the method described in claim 6, it is characterized in that, described configure the downstream feedback channel for the terminal,
Include:
Target dispatch unit is determined based on the terminal ability information, and the target dispatch unit is the terminal to the base station
The time domain unit used when the HARQ result of feeding back downlink data；
The downstream feedback channel of at least corresponding bit of each target dispatch unit, the downlink are configured for the terminal
Feedback channel is served only for the terminal to the HARQ result of the base station feedback downlink data.
8. a kind of downlink HARQ feedback device, which is characterized in that described device is used for terminal, and described device includes:
First sending module is configured as sending terminal ability information to base station, and the terminal ability information includes: for characterizing
The terminal supports the first terminal ability information of low time delay business, and for characterizing base station described in the terminal request as itself
Configuration corresponds to the second terminal ability information of the object feedback type of the low time delay business, and the object feedback type is used for
When indicating hybrid automatic repeat-request HARQ result of the terminal to the base station feedback downlink data, use the base station for
The independent downstream feedback channel of the terminal configuration；
First receiving module is configured as receiving the feedback kind that the base station return is the terminal configuration；
First feedback module is configured as when the feedback kind is consistent with the object feedback type, then passes through the base
Stand for itself configuration HARQ result from the downstream feedback channel to the base station feedback downlink data.
9. device according to claim 8, which is characterized in that first sending module includes:
Sending submodule is configured as connecting by wireless heterogeneous networks and establishes request transmission terminal ability information to base station.
10. device according to claim 8, which is characterized in that first feedback module includes:
Acquisition submodule is configured as obtaining the target dispatch unit that the base station is determined based on the terminal ability information, institute
State the time domain unit used when target dispatch unit is HARQ result of the terminal to the base station feedback downlink data；
First determines submodule, is configured to determine that the feedback delay of the HARQ result of feeding back downlink data, the feedback delay
As unit of the target dispatch unit；
Submodule is fed back, is configured as in the downstream feedback channel that the base station is itself configuration, with the target tune
Degree unit is HARQ result of the unit time-domain position corresponding to the feedback delay to the base station feedback downlink data.
11. according to the described in any item devices of claim 8-10, which is characterized in that further include:
Second feedback module is configured as then passing through physics when the feedback kind and the object feedback Type-Inconsistencies
Mixed automatic retransfer indicates HARQ result of the PHICH channel to the base station feedback downlink data.
12. a kind of downlink HARQ feedback device, which is characterized in that described device is used for base station, and described device includes:
Second receiving module is configured as receiving the terminal ability information that terminal is sent, and the terminal ability information includes: to be used for
It characterizes the terminal and supports the first terminal ability information of low time delay business, and be for characterizing base station described in the terminal request
Itself configuration corresponds to the second terminal ability information of the object feedback type of the low time delay business, the object feedback type
When being used to indicate hybrid automatic repeat-request HARQ result of the terminal to the base station feedback downlink data, using the base
It stands as the independent downstream feedback channel of terminal configuration；
Feedback kind configuration module is configured as being that the terminal configures feedback kind based on the terminal capability parameter；
Second sending module is configured as sending the feedback kind to the terminal.
13. device according to claim 12, which is characterized in that further include:
Feedback channel configuration module is configured as when the feedback kind is consistent with the object feedback type, is the end
End configures the downstream feedback channel.
14. device according to claim 13, which is characterized in that the feedback channel configuration module includes:
Second determines submodule, is configured as determining target dispatch unit, the target dispatch based on the terminal ability information
The time domain unit that unit uses when being HARQ result of the terminal to the base station feedback downlink data；
Feedback channel configures submodule, is configured as at least corresponding to one for each target dispatch unit of terminal configuration
The downstream feedback channel of bit, the downstream feedback channel are served only for the terminal to the HARQ of the base station feedback downlink data
As a result.
15. a kind of terminal characterized by comprising
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Terminal ability information is sent to base station, the terminal ability information includes: to support low time delay industry for characterizing the terminal
The first terminal ability information of business, and correspond to the low time delay for characterizing base station described in the terminal request for itself configuration
The second terminal ability information of the object feedback type of business, the object feedback type are used to indicate the terminal to the base
When the hybrid automatic repeat-request HARQ result for feeding back downlink data of standing, the base station is used to configure for the terminal independent
Downstream feedback channel；
Receive the feedback kind that the base station return is the terminal configuration；
It is then the downlink of itself configuration by the base station when the feedback kind is consistent with the object feedback type
HARQ result of the feedback channel to the base station feedback downlink data.
16. a kind of base station characterized by comprising
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
The terminal ability information that terminal is sent is received, the terminal ability information includes: when supporting low for characterizing the terminal
Prolong the first terminal ability information of business, and is configured for itself corresponding to described low for characterizing base station described in the terminal request
The second terminal ability information of the object feedback type of time delay business, the object feedback type are used to indicate the terminal to institute
When stating the hybrid automatic repeat-request HARQ result of base station feedback downlink data, the base station is used to configure for the terminal only
Vertical downstream feedback channel；
It is that the terminal configures feedback kind based on the terminal capability parameter；
The feedback kind is sent to the terminal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/081663 WO2018195707A1 (en) | 2017-04-24 | 2017-04-24 | Downlink harq feedback method and device, and terminal and base station |
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| Publication Number | Publication Date |
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| CN109121464A true CN109121464A (en) | 2019-01-01 |
| CN109121464B CN109121464B (en) | 2021-07-06 |
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| WO (1) | WO2018195707A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109121464B (en) | 2021-07-06 |
| WO2018195707A1 (en) | 2018-11-01 |
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