CN109391371B - Hybrid automatic repeat request feedback method, device and user equipment - Google Patents
Hybrid automatic repeat request feedback method, device and user equipment Download PDFInfo
- Publication number
- CN109391371B CN109391371B CN201710681144.1A CN201710681144A CN109391371B CN 109391371 B CN109391371 B CN 109391371B CN 201710681144 A CN201710681144 A CN 201710681144A CN 109391371 B CN109391371 B CN 109391371B
- Authority
- CN
- China
- Prior art keywords
- time
- transmission data
- base station
- receiving
- harq feedback
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a hybrid automatic repeat request feedback method, a device and user equipment. The method comprises the following steps: when time frequency resources adopted by initial data sent by a receiving base station are occupied by another user, determining a required decoding time increment according to the time for receiving initial transmission data or supplementary transmission data and the time for receiving a forced occupation indication; determining time for sending HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment; and transmitting the HARQ feedback to the base station at the determined time for transmitting the HARQ feedback to the base station. The invention can improve the probability of correct decoding and ensure the reliability of hybrid automatic repeat request feedback.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for hybrid automatic repeat request feedback, and a user equipment.
Background
In 5G communication services, to improve the resource utilization, users with different data transmission durations may multiplex the same time-frequency resource, that is: in order to meet the low delay requirement of the short-duration user, the base station can schedule the short-duration user on the time-frequency resource of the long-duration user which is scheduled, so that the short-duration user occupies the time-frequency resource of the long-duration user, and partial data of the long-duration user is damaged. When the time-frequency resource is occupied, the base station may send a Preemption Indication (Preemption Indication) to the long-term long user to indicate the time-frequency resource that the long-term long user is occupied, so as to improve the correct decoding probability of the long-term long user, and the Preemption Indication is sent through group common DCI (Downlink Control Information).
To ensure coverage of users at different positions within the group, the camping indication sent through the group common DCI requires a larger number of bits to ensure the performance of cell edge users, and for these potentially camping users, the group common DCI needs to be continuously monitored whether or not camping occurs. Considering that the preemption resource does not occur at any moment, the control channel load requirement and the user blind detection complexity can be reduced by selecting a preemption indication monitoring period with a proper length.
When the time-frequency resource of a long-term user is preempted by a short-term user is located between two preemption indication monitoring times, it may happen that the long-term user cannot know the reason causing decoding errors of part of data before decoding is subjected to Hybrid Automatic Repeat Request (HARQ) feedback, thereby reducing the probability of correct decoding; when the supplementary transmission of the preempted long-term user data by the base station is also located between the two monitoring moments of the preemption indication, it may happen that the long-term user cannot remove the preempted wrong data according to the preemption indication when the preempted long-term user data and the supplementary transmission data are soft-combined, thereby reducing the probability of correct decoding.
Disclosure of Invention
The method, the device and the user equipment for feeding back the hybrid automatic repeat request can improve the probability of correct decoding and ensure the reliability of the feedback of the hybrid automatic repeat request.
In a first aspect, the present invention provides a feedback method for hybrid automatic repeat request, including:
when time frequency resources adopted by initial data sent by a receiving base station are occupied by another user, determining a required decoding time increment according to the time for receiving initial transmission data or supplementary transmission data and the time for receiving a forced occupation indication;
determining the time for sending HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment;
and transmitting the HARQ feedback to the base station at the determined time for transmitting the HARQ feedback to the base station.
Optionally, the determining a required decoding time increment according to the time of receiving the initial transmission data or the supplementary transmission data and the time of receiving the preemption indication includes: and determining the required decoding time increment according to a calculation formula which is configured by the base station and is related to the time of receiving the initial transmission data or the supplementary transmission data and the time of receiving the preemption indication.
Optionally, when the preemption occurrence time is between two preemption indication monitoring times, the determining the required decoding time increment according to the time of receiving the initial transmission data or the supplementary transmission data and the time of receiving the preemption indication includes: determining a required decoding time increment according to the time of receiving the initial transmission data and the time of receiving the preemption indication;
the determining the time for sending the HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment comprises the following steps: and determining the time obtained by adding the time of receiving the initial transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
Optionally, when the base station directly sends supplementary transmission data to the user before receiving HARQ feedback of the user on the initial transmission data, and the initial transmission data that the user is preempted and the supplementary transmission data thereof are located between the same two monitoring times of the preemption indication, determining the required decoding time increment according to the time of receiving the initial transmission data or the supplementary transmission data and the time of receiving the preemption indication includes: determining a required decoding time increment according to the time of receiving the supplementary transmission data and the time of receiving the preemption indication;
the determining the time for sending the HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment comprises the following steps: and determining the time obtained by adding the time of receiving the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
In a second aspect, the present invention provides a hybrid automatic repeat request feedback device, including:
a first determining unit, configured to determine, when a time-frequency resource used for receiving initial data sent by a base station is occupied by another user, a required decoding time increment according to a time when the initial data or the complementary data is received and a time when a preemption indication is received;
a second determining unit, configured to determine, according to the time when the initial transmission data or the supplementary transmission data is received, the predetermined HARQ feedback time set by the base station, and the decoding time increment, a time when HARQ feedback is sent to the base station;
a sending unit, configured to send the HARQ feedback to the base station at the time determined by the second determining unit to send the HARQ feedback to the base station.
Optionally, the first determining unit is configured to determine the required decoding time increment according to a calculation formula configured by the base station and related to the time when the initial transmission data or the complementary transmission data is received and the time when the preemption indication is received.
Optionally, when the preemption occurrence time is between two preemption indication monitoring times, the first determining unit is configured to determine a required decoding time increment according to the time of receiving the initial transmission data and the time of receiving the preemption indication;
and the second determining unit is used for determining the time obtained by adding the time of receiving the initial transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
Optionally, when the base station directly sends the complementary transmission data to the user before receiving the HARQ feedback of the user on the initial transmission data, and the initial transmission data that the user is preempted and the complementary transmission data thereof are both located between the same two preemption indication monitoring times, the first determining unit is configured to determine a required decoding time increment according to the time when the complementary transmission data is received and the time when the preemption indication is received;
and the second determining unit is used for determining the time obtained by adding the time of receiving the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
In a third aspect, the present invention provides a user equipment, where the user equipment includes the above hybrid automatic repeat request feedback device.
According to the hybrid automatic repeat request feedback method, the hybrid automatic repeat request feedback device and the user equipment, a decoding time increment is introduced into the HARQ feedback time of the preempted user, so that when the preempted user is located between two times of monitoring time of the preemption indication, the preempted user can remove error data of a preempted part according to the preemption indication when decoding initial transmission data, and uplink HARQ feedback is carried out on a corresponding decoding result; and when the preempted initial transmission data and the supplementary transmission data of the user are positioned between the same two monitoring moments of the preemption indication, so that the preempted user performs HARQ soft combination on the initial transmission data and the supplementary transmission data, the preempted error data in the initial transmission can be removed according to the preemption indication, and uplink HARQ feedback is performed on the corresponding decoding result, thereby improving the probability of correct decoding and ensuring the reliability of hybrid automatic repeat request feedback.
Drawings
Fig. 1 is a flowchart illustrating a hybrid automatic repeat request feedback method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a time-frequency resource that is occupied by a long-duration user and a short-duration user in a strong manner according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a hybrid automatic repeat request feedback method according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of the hybrid automatic repeat request feedback method shown in FIG. 3 in the time domain;
FIG. 5 is a diagram illustrating a HARQ feedback method according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of the hybrid automatic repeat request feedback method shown in FIG. 5 in the time domain;
fig. 7 is a schematic structural diagram of a harq feedback apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a feedback method for a hybrid automatic repeat request, as shown in fig. 1, the method includes:
s11, when the time frequency resource adopted by the initial data sent by the base station is occupied by another user, the UE determines the needed decoding time increment according to the time of receiving the initial transmission data or the supplementary transmission data and the time of receiving the occupation indication.
Specifically, the UE may determine the required decoding time increment according to a calculation formula configured by the base station and related to the time of receiving the initial transmission data or the complementary transmission data and the time of receiving the preemption indication.
And S12, the UE determines the time for sending HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment.
When the preemption occurs between the two preemption indication monitoring moments, the UE can determine the required decoding time increment according to the time of receiving the initial transmission data and the time of receiving the preemption indication; and determining the time obtained by adding the time of receiving the initial transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
When the base station directly sends the supplementary transmission data to the user before receiving the HARQ feedback of the user to the initial transmission data, and the initial transmission data which is preempted by the user and the supplementary transmission data thereof are positioned between the same two monitoring moments of the preemption indication, the UE can determine the needed decoding time increment according to the time of receiving the supplementary transmission data and the time of receiving the preemption indication; and determining the time obtained by adding the time of receiving the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
S13, the UE sends the HARQ feedback to the base station at the determined time for sending the HARQ feedback to the base station.
Wherein the HARQ feedback is HARQ A/N (ACK/NACK) feedback.
According to the hybrid automatic repeat request feedback method provided by the embodiment of the invention, a decoding time increment is introduced into the HARQ feedback time of the preempted user, so that when the preempted time is between two times of monitoring time of the preemption indication, the preempted user can remove error data of a preempted part according to the preemption indication when decoding the initial transmission data, and uplink HARQ feedback is carried out on a corresponding decoding result; and when the preempted initial transmission data and the supplementary transmission data of the user are positioned between the same two monitoring moments of the preemption indication, so that the preempted user performs HARQ soft combination on the initial transmission data and the supplementary transmission data, the preempted error data in the initial transmission can be removed according to the preemption indication, and uplink HARQ feedback is performed on the corresponding decoding result, thereby improving the probability of correct decoding and ensuring the reliability of hybrid automatic repeat request feedback.
The following describes the harq feedback method according to the present invention in detail with reference to specific embodiments.
As shown in fig. 2, two users with the same data transmission duration are forced to occupy time-frequency resources by another user during data transmission, according to different transmission durations, user 1 and user 2 may be called long-duration users, and user 3 may be called short-duration users, because user 3 has a higher delay requirement, the base station re-schedules user 3 on part of the time-frequency resources of scheduled user 1 and user 2, which causes user 3 to occupy the part of the time-frequency resources of user 1 and user 2, resulting in errors in part of the data of user 1 and user 2.
The following description will take as an example the case where the initial data of the long-term user is preempted, the occurrence time of the preemption is between the two preemption indication monitoring times, and no supplementary transmission data is transmitted.
As shown in fig. 3, the time-frequency resource used by the base station to send the initial data to the user is preempted by another user, the base station sends the preemption indication at the next preemption indication monitoring time to inform the preempted user of the range of the time-frequency resource preempted since the last preemption indication, and the preempted user can determine the data portion where the error occurs according to the received resource range of the preemption indication, so that the error data can be removed from the codebook (codebook) where the decoding fails,the remaining portions are re-decoded, which may increase the probability of successful decoding. When the base station sends initial data to the user, the feedback time for sending the data is determined for the user according to the user type and the processing capacity, namely the time for receiving the data by the user is NdataThe user needs to be at time Ndata+K1And sending HARQ feedback to the base station. However, when resource preemption occurs, the preempted user needs to re-decode the preempted codebook according to the first preemption indication received after its data reception, which requires additional decoding time compared to the non-preempted user and thus cannot decode the codebook at Ndata+K1And feeding back a re-decoding result of the base station according to the preemption indication.
Therefore, the embodiment of the invention introduces a decoding time increment delta K to the HARQ feedback time, and when the preemption happens, the user can be in Ndata+K1+ Δ K sends HARQ feedback to the base station. Δ K is a function of the data reception time and the preemption indication reception time, and is f (N)data,NPI). And the time function delta K is optimally designed by the base station according to system parameters and is configured to the user through a high-level signaling, and the user calculates the delta K according to the time of actually receiving data and the preemption indication.
As shown in fig. 4, in the present embodiment, the time function Δ K is adopted such that Δ K is equal to NPI-Ndata-1. Each scheduling unit is a bidirectional scheduling unit, downlink data is partially scheduled in the front of the unit, and uplink data is partially scheduled in the rear of the unit. T isPIAnd in the monitoring period of the preemption indication by the user, the preemption indication obtained by the user at each monitoring moment is an indication of all the preemption occurring from the last monitoring moment to the moment, and if no preemption occurs, the preemption indication is a default value. The user receives the downlink data sent to the user by the base station in the first scheduling unit, NdataThe HARQ feedback time set by the base station for the user is K ═ 11If no preemption occurs, the user should be on the nthdata+K1And the uplink transmission unit of 3 scheduling units transmits HARQ feedback to the base station. In this embodiment, the monitoring period T is indicated due to the occurrence of the preemptionPIThen it is stronger in the first scheduling unitOccupied data will be indicated in the third scheduling unit, i.e. NPIAnd 3, the user needs to decode the preempted codebook again according to the preemption indication monitored by the third scheduling unit. User is according to NPI＝3，NdataThe value of the time function Δ K is calculated as 1 to be 3-1-1, so the user will be at the nth positiondata+K1And the uplink sending unit of the + delta K-4 scheduling units sends HARQ feedback to the base station for feeding back a decoding result after the HARQ feedback is based on the preemption indication.
The following description will take as an example a case where long-duration user initial transmission data is preempted, and the base station directly sends supplementary transmission data to the user before receiving HARQ feedback of the user on the initial transmission data, and the preempted initial transmission data and supplementary transmission data of the user are both located between the same two preemption indication monitoring times.
As shown in fig. 5, the time-frequency resource used when the base station sends the initial data to the user is occupied by another user, the base station directly sends the complementary transmission data to the user according to the unequal HARQ feedback of the user on the initial transmission data, and the initial transmission data and the complementary transmission data occupied by the user are both located between the same two times of the monitoring of the occupation indication. The base station sends the preemption indication at the next preemption indication monitoring moment to inform the preempted user of the preempted time-frequency resource range after the last preemption indication, and the preempted user can determine the part of the initial transmission data which is preempted to cause decoding error according to the received preemption indication resource range, so that the error data can be removed from the corresponding decoding result of the initial transmission data, the decoding result of the rest part of the initial transmission data and the supplementary transmission data are subjected to HARQ soft combination, and the successful decoding probability can be improved.
In this case, when receiving the data retransmitted by the base station, the user can determine that the initially transmitted data is already occupied, so HARQ feedback is not performed on the initially transmitted data, and HARQ feedback is performed only on the retransmitted data. However, when resource preemption occurs, the preempted user needs to perform HARQ soft combining decoding on the initially transmitted data and the retransmission data according to the first preemption indication received after data reception, so that extra decoding time is needed, and the HARQ feedback time originally set for the retransmission data cannot be set for the retransmission dataN′data+K1And feeding back the soft combining decoding result according to the preemption indication to the base station.
Therefore, in the embodiment of the invention, a decoding time increment delta K is introduced to the HARQ feedback time of the complement transmission data, and when the hybrid transmission data is subjected to preemption, a user is N'data+K1+ Δ K sends HARQ feedback to the base station. Δ K is a function of the complementary transmission data reception time and the forced indication reception time, and is ═ f (N'data,NPI). And the time function delta K is optimally designed by the base station according to system parameters and is configured to the user through a high-level signaling, and the user calculates the delta K according to the time of actually receiving the supplementary transmission data and the preemption indication.
As shown in fig. 6, in the present embodiment, the time function Δ K is adopted such that Δ K is equal to NPI-N′data-1. Each scheduling unit is a bidirectional scheduling unit, downlink data is partially scheduled in the front of the unit, and uplink data is partially scheduled in the rear of the unit. T isPIAnd in the monitoring period of the preemption indication by the user, the preemption indication obtained by the user at each monitoring moment is an indication of all the preemption occurring from the last monitoring moment to the moment, and if no preemption occurs, the preemption indication is a default value. The user receives the downlink data sent to it by the base station in the first scheduling unit, the data is preempted by another user, therefore, the user receives the supplementary transmission data, N ', sent to it by the base station in the second scheduling unit'data2, the HARQ feedback time set by the base station for the user is K12, the user should be at N'data+K1And the uplink sending unit of the 4 scheduling units sends a feedback result of HARQ soft combination of the initial transmission data and the supplementary transmission data to the base station. In this embodiment, the monitoring period T is indicated due to the occurrence of the preemptionPIThen the data that is empowered in the first scheduling unit will be indicated in the fourth scheduling unit, i.e. NPIIf the user needs to perform HARQ soft combining decoding on the initially transmitted data and the additionally transmitted data according to the preemption indication monitored by the fourth scheduling unit, additional decoding time is needed. User is according to NPI＝4，N′dataThe value of time function Δ K is calculated to be 4-2-1-2, so the user will be at the nth'data+K1And the uplink sending unit of the + delta K-5 scheduling units sends HARQ feedback to the base station for feeding back a decoding result of the HARQ soft combination of the initial transmission data and the supplementary transmission data according to the preemption indication.
An embodiment of the present invention further provides a hybrid automatic repeat request feedback device, as shown in fig. 7, the device includes:
a first determining unit 11, configured to determine, when a time-frequency resource used for receiving initial data sent by a base station is occupied by another user, a required decoding time increment according to time for receiving the initial transmission data or the complementary transmission data and time for receiving a preemption indication;
a second determining unit 12, configured to determine, according to the time when the initial transmission data or the supplementary transmission data is received, the predetermined HARQ feedback time set by the base station, and the decoding time increment, a time when HARQ feedback is sent to the base station;
a sending unit 13, configured to send the HARQ feedback to the base station at the time determined by the second determining unit 12 to send the HARQ feedback to the base station.
Optionally, the first determining unit 11 is configured to determine the required decoding time increment according to a calculation formula configured by the base station and related to the time when the initial transmission data or the complementary transmission data is received and the time when the preemption indication is received.
Optionally, when the preemption occurrence time is between two preemption indication monitoring times, the first determining unit 11 is configured to determine a required decoding time increment according to the time of receiving the initial transmission data and the time of receiving the preemption indication;
the second determining unit 12 is configured to determine, as the time for sending the HARQ feedback to the base station, a time obtained by adding the time for receiving the initial transmission data, the predetermined HARQ feedback time set by the base station, and the decoding time increment.
Optionally, when the base station directly sends the complementary transmission data to the user before receiving the HARQ feedback of the user on the initial transmission data, and the initial transmission data that the user is preempted and the complementary transmission data thereof are both located between the same two preemption indication monitoring times, the first determining unit 11 is configured to determine a required decoding time increment according to the time when the complementary transmission data is received and the time when the preemption indication is received;
the second determining unit 12 is configured to determine, as the time for sending the HARQ feedback to the base station, a time obtained by adding the time for receiving the retransmission data, the predetermined HARQ feedback time set by the base station, and the decoding time increment.
According to the hybrid automatic repeat request feedback device provided by the embodiment of the invention, a decoding time increment is introduced into the HARQ feedback time of the preempted user, so that when the time of the preempted user is between the monitoring time of two times of the preemption indication, the preempted user can remove the error data of the preempted part according to the preemption indication when decoding the initial transmission data, and the corresponding decoding result is subjected to uplink HARQ feedback; and when the preempted initial transmission data and the supplementary transmission data of the user are positioned between the same two monitoring moments of the preemption indication, so that the preempted user performs HARQ soft combination on the initial transmission data and the supplementary transmission data, the preempted error data in the initial transmission can be removed according to the preemption indication, and uplink HARQ feedback is performed on the corresponding decoding result, thereby improving the probability of correct decoding and ensuring the reliability of hybrid automatic repeat request feedback.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
The embodiment of the invention also provides the user equipment which comprises the hybrid automatic repeat request feedback device.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method for hybrid automatic repeat request feedback, comprising:
when time frequency resources adopted by initial data sent by a receiving base station are occupied by another user, determining a required decoding time increment according to the time for receiving initial transmission data or supplementary transmission data and the time for receiving a forced occupation indication;
determining time for sending HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment;
and transmitting the HARQ feedback to the base station at the determined time for transmitting the HARQ feedback to the base station.
2. The method of claim 1, wherein determining the required decoding time increment according to the time of receiving the initial transmission data or the complementary transmission data and the time of receiving the preemption indication comprises: and determining the required decoding time increment according to a calculation formula which is configured by the base station and is related to the time of receiving the initial transmission data or the supplementary transmission data and the time of receiving the preemption indication.
3. The method of claim 1 or 2, wherein when the preemption occurs between two preemption-indication-monitoring times, the determining the required decoding time increment according to the time of receiving the initial transmission data or the complementary transmission data and the time of receiving the preemption indication comprises: determining a required decoding time increment according to the time of receiving the initial transmission data and the time of receiving the preemption indication;
the determining the time for sending the HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment comprises the following steps: and determining the time obtained by adding the time of receiving the initial transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
4. The method according to claim 1 or 2, wherein when the base station directly sends the complementary transmission data to the user before receiving the HARQ feedback of the user for the initial transmission data, and the initial transmission data that the user is preempted and the complementary transmission data thereof are located between the same two monitoring times of the preemption indication, the determining the required decoding time increment according to the time of receiving the initial transmission data or the complementary transmission data and the time of receiving the preemption indication comprises: determining a required decoding time increment according to the time of receiving the supplementary transmission data and the time of receiving the preemption indication;
the determining the time for sending the HARQ feedback to the base station according to the time for receiving the initial transmission data or the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment comprises the following steps: and determining the time obtained by adding the time of receiving the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
5. A hybrid automatic repeat request feedback device, comprising:
a first determining unit, configured to determine, when a time-frequency resource used for receiving initial data sent by a base station is occupied by another user, a required decoding time increment according to a time when the initial data or the complementary data is received and a time when a preemption indication is received;
a second determining unit, configured to determine, according to the time when the initial transmission data or the supplementary transmission data is received, the predetermined HARQ feedback time set by the base station, and the decoding time increment, a time when HARQ feedback is sent to the base station;
a sending unit, configured to send the HARQ feedback to the base station at the time determined by the second determining unit to send the HARQ feedback to the base station.
6. The apparatus of claim 5, wherein the first determining unit is configured to determine the required decoding time increment according to a calculation formula configured by the base station and related to a time when the initial transmission data or the complementary transmission data is received and a time when the preemption indication is received.
7. The apparatus according to claim 5 or 6, wherein when the preemption indication occurs between two preemption indication monitoring times, the first determining unit is configured to determine a required decoding time increment according to a time when the initial transmission data is received and a time when the preemption indication is received;
and the second determining unit is used for determining the time obtained by adding the time of receiving the initial transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
8. The apparatus according to claim 5 or 6, wherein when the base station directly sends the complementary transmission data to the user before receiving the HARQ feedback of the user for the initial transmission data, and the initial transmission data that the user is preempted and the complementary transmission data thereof are both located between the same two times of monitoring of the preemption indication, the first determining unit is configured to determine the required decoding time increment according to the time of receiving the complementary transmission data and the time of receiving the preemption indication;
and the second determining unit is used for determining the time obtained by adding the time of receiving the supplementary transmission data, the preset HARQ feedback time set by the base station and the decoding time increment as the time for sending the HARQ feedback to the base station.
9. A user equipment, characterized in that the user equipment comprises a hybrid automatic repeat request feedback device according to any of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681144.1A CN109391371B (en) | 2017-08-10 | 2017-08-10 | Hybrid automatic repeat request feedback method, device and user equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681144.1A CN109391371B (en) | 2017-08-10 | 2017-08-10 | Hybrid automatic repeat request feedback method, device and user equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109391371A CN109391371A (en) | 2019-02-26 |
| CN109391371B true CN109391371B (en) | 2021-06-18 |
Family
ID=65414242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710681144.1A Active CN109391371B (en) | 2017-08-10 | 2017-08-10 | Hybrid automatic repeat request feedback method, device and user equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109391371B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378385A (en) * | 2010-08-16 | 2012-03-14 | 夏普株式会社 | Uplink control information transmission method, base stations and user equipment |
| CN104067548A (en) * | 2013-01-23 | 2014-09-24 | 华为技术有限公司 | Information configuration method, device and system |
| CN104243108A (en) * | 2013-06-08 | 2014-12-24 | 中兴通讯股份有限公司 | Uplink hybrid automatic retransmission request feedback method, device and system |
| CN106506123A (en) * | 2016-12-29 | 2017-03-15 | 宇龙计算机通信科技(深圳)有限公司 | A kind of indicating means and base station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1747634A4 (en) * | 2004-05-07 | 2007-06-20 | Interdigital Tech Corp | Method and apparatus for assigning hybrid-automatic repeat request processes |
-
2017
- 2017-08-10 CN CN201710681144.1A patent/CN109391371B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378385A (en) * | 2010-08-16 | 2012-03-14 | 夏普株式会社 | Uplink control information transmission method, base stations and user equipment |
| CN104067548A (en) * | 2013-01-23 | 2014-09-24 | 华为技术有限公司 | Information configuration method, device and system |
| CN104243108A (en) * | 2013-06-08 | 2014-12-24 | 中兴通讯股份有限公司 | Uplink hybrid automatic retransmission request feedback method, device and system |
| CN106506123A (en) * | 2016-12-29 | 2017-03-15 | 宇龙计算机通信科技(深圳)有限公司 | A kind of indicating means and base station |
Non-Patent Citations (2)
| Title |
|---|
| "CBG based (re)transmission, preemption indication and subsequent trasnmission in NR";NTT DOCOMO, INC.;《3GPP TSG RAN WG1 Meeting #89 R1-1708384》;20170519;全文 * |
| "Remaining issues on using pre-emption indicator for DL URLLC/eMBB multiplexing";Sony;《3GPP TSG RAN WG1 NR Ad-Hoc#2 R1-1710865》;20170630;第2-4节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109391371A (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3639426B1 (en) | Procedures, user equipments and base stations for code block group-based transmission | |
| CN110582968B (en) | Indication for a portion of a time interval | |
| KR102513274B1 (en) | Method and apparatus for performing hybrid automatic repeat request in a wireless communication system | |
| US8595579B2 (en) | Method for DL semi-persistent scheduling HARQ process allocation and apparatus thereof | |
| US9048986B2 (en) | Mitigation of lost resource allocation synchronization between a user equipment (UE) and an evolved node B (eNodeB) | |
| US20190379491A1 (en) | Retransmission for punctured signals | |
| US20120307648A1 (en) | User device, base station, and method for mobile communication systems | |
| US20180097606A1 (en) | Systems and methods for frequency division duplex communication | |
| CN110291732B (en) | Automatic retransmission of corrupted data in a wireless network | |
| WO2017185294A1 (en) | Method and apparatus for performing hybrid automatic repeat request processes | |
| RU2612657C1 (en) | Method and device for recovery in case of loss of detection of control channel | |
| CN108886436B (en) | Radio network node, wireless device and methods performed therein | |
| EP2557741B1 (en) | Method and apparatus for sending / receiving downlink control signaling | |
| US11962418B2 (en) | Method for controlling data retransmission and user equipment | |
| AU2020205913A1 (en) | Method executed by user equipment, and user equipment | |
| US20110151883A1 (en) | Method for communicating in a network, a secondary station and a system therefor | |
| CN110637429A (en) | Puncturing bundling of data of a first service in transmission of a second service | |
| US20110090810A1 (en) | Method for aquiring processing time of wireless signal | |
| US10827517B2 (en) | Transmission method, mobile communication terminal, and network side device | |
| US10050745B2 (en) | Wireless communications system, terminal, base station, and process method | |
| KR20130123331A (en) | Method and apparatus for maintaining transmission continuity of unplink harq process in dynamic tdd system | |
| CN109391371B (en) | Hybrid automatic repeat request feedback method, device and user equipment | |
| US9768936B2 (en) | Message transmission in an unlicensed spectrum | |
| EP3589045B1 (en) | Carrier aggregation-based demodulation method and apparatus | |
| US20230261789A1 (en) | Method and apparatus for uplink transmission on configured grant resources |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100191, Haidian District, Zhichun Road, Beijing No. 7 to the real building, block B, 18 Applicant after: Beijing Ziguang zhanrui Communication Technology Co.,Ltd. Address before: 100191, Haidian District, Zhichun Road, Beijing No. 7 to the real building, block B, 18 Applicant before: BEIJING SPREADTRUM HI-TECH COMMUNICATIONS TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |