CN111294180A - HARQ-ACK transmission method and device, storage medium, transmitting UE and receiving UE - Google Patents
HARQ-ACK transmission method and device, storage medium, transmitting UE and receiving UE Download PDFInfo
- Publication number
- CN111294180A CN111294180A CN201910117029.0A CN201910117029A CN111294180A CN 111294180 A CN111294180 A CN 111294180A CN 201910117029 A CN201910117029 A CN 201910117029A CN 111294180 A CN111294180 A CN 111294180A
- Authority
- CN
- China
- Prior art keywords
- receiving
- time
- configuration information
- sending
- pucch
- 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.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Abstract
A HARQ-ACK sending method and device, a storage medium, a sending UE and a receiving UE are provided, the method comprises the following steps: sending PUCCH configuration information to receiving UE, wherein the PUCCH configuration information is PUCCH configuration information of the sending UE; receiving a PDCCH from a base station to determine N time-frequency resources for sidechain transmission; and sending PSSCH to the receiving UE one by adopting each time frequency resource in the N time frequency resources until the receiving UE successfully decodes the data loaded by the PSSCH, so that the receiving UE adopts the PUCCH configuration information to send NACK feedback to the base station when the receiving UE fails to decode all the data loaded by the N PSSCHsh. The scheme of the invention can improve the accuracy of judging the retransmission resources by the base station and improve the communication quality.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a HARQ-ACK transmitting method and apparatus, a storage medium, a transmitting UE, and a receiving UE.
Background
In 2018, the 80 th congress of the third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) passed the research Project of 5G New Radio (NR) internet of vehicles (Vehicle to evolution, V2X).
The NR air interface (Uu) has two kinds of Control information, Downlink Control Information (DCI) and Uplink Control Information (UCI). NR V2X also defines two kinds of Control Information, namely, side chain Control Information (SCI) for carrying necessary Information required for demodulating Physical side chain Shared Channel (psch), and side chain Feedback Control Information (SFCI) for carrying Feedback Information such as side chain Hybrid Automatic Repeat reQuest (side chain Hybrid Automatic Repeat reQuest, side chain HARQ) acknowledge/not acknowledge (ACK/NACK), side chain Scheduling reQuest (side chain Scheduling reQuest, side chain SR), side chain Channel State Information (side chain Channel State, side chain csi), and the like.
In the existing resource allocation mode supporting two types of side chains, a base station schedules side chain resources for sending UE for side chain communication, however, if the sending UE fails to send side chain information on the two types of resources, the base station does not reschedule the sending UE again, which results in large time delay. To solve the above problem, the receiving UE may feed back HARQ information to the base station to inform that resources need to be retransmitted.
However, in the prior art, the base station cannot accurately receive the feedback sent by the receiving UE, which affects the retransmission effect.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a HARQ-ACK sending method and device, a storage medium, sending UE and receiving UE, which can improve the accuracy of judging retransmission resources by a base station and improve the communication quality.
In order to solve the above technical problem, an embodiment of the present invention provides a method for sending HARQ-ACK, including the following steps: sending PUCCH configuration information to receiving UE, wherein the PUCCH configuration information is PUCCH configuration information of the sending UE; receiving a PDCCH from a base station to determine N time-frequency resources for sidechain transmission; sending PSSCH to the receiving UE one by adopting each time frequency resource in the N time frequency resources until the receiving UE successfully decodes the data loaded by the PSSCH, so that the receiving UE sends NACK feedback to the base station by adopting the PUCCH configuration information when the receiving UE fails to decode all the data loaded by the N PSSCHs; wherein N is a positive integer.
Optionally, the step of sending the PSSCH to the receiving UE by using the time-frequency resources one by one includes: sending a first PSCCH and a first PSSCH to the receiving UE at a first time-frequency resource in the N time-frequency resources; at least one time frequency resource in the N-1 time frequency resources except the first time frequency resource also sends PSCCH in addition to sending PSSCH to the receiving UE; wherein at least one of the first PSCCH and the transmitted PSCCH includes resource indication information for retransmission request, the resource indication information for retransmission request is included in the PDCCH, and the receiving UE transmits NACK feedback to the base station on a time-frequency resource indicated by the resource indication information for retransmission request.
Optionally, the request for retransmission resource indication information includes a PUCCH resource indication field and a slot offset; the PUCCH resource indication field is a field adopted when the receiving UE sends NACK feedback to the base station, and the time slot offset is the time slot offset between the time slot of the PDCCH and the time slot when the receiving UE sends NACK feedback to the base station.
Optionally, the PUCCH configuration information includes PUCCH resource set information, and a format configuration to which each resource of the PUCCH resource set belongs, PUCCH resource information, PUCCH sequence hopping and group hopping information, and a hopping ID.
In order to solve the above technical problem, an embodiment of the present invention provides a method for sending HARQ-ACK, including the following steps: receiving PUCCH configuration information from a transmitting UE, wherein the PUCCH configuration information is PUCCH configuration information of the transmitting UE; receiving PSSCH from the sending UE one by one until the data decoding carried by the PSSCH is successful, wherein the PSSCH is sent one by adopting each time-frequency resource in N time-frequency resources after the sending UE receives PDCCH from a base station to determine the N time-frequency resources used for side-chain transmission; when the decoding of the data carried by the N PSSCHs fails, the PUCCH configuration information is adopted to send NACK feedback to the base station; wherein N is a positive integer.
Optionally, receiving the PSSCHs one by one from the transmitting UE includes: receiving a first PSCCH and a first PSSCH from the sending UE in a first time-frequency resource of the N time-frequency resources; receiving a PSCCH in addition to receiving a PSSCH from the transmitting UE in at least one of the N-1 time-frequency resources other than the first time-frequency resource; wherein at least one of the first PSCCH and the received PSCCH includes retransmission request resource indication information, and the retransmission request resource indication information is included in the PDCCH, and sending NACK feedback to the base station includes: and sending NACK feedback to the base station on the time-frequency resource indicated by the resource indication information requesting retransmission.
Optionally, the request for retransmission resource indication information includes a PUCCH resource indication field and a slot offset; the PUCCH resource indication field is a field adopted when the receiving UE sends NACK feedback to the base station, and the time slot offset is the time slot offset between the time slot of the PDCCH and the time slot when the receiving UE sends NACK feedback to the base station.
Optionally, the PUCCH configuration information includes PUCCH resource set information, and a format configuration to which each resource of the PUCCH resource set belongs, PUCCH resource information, PUCCH sequence hopping and group hopping information, and a hopping ID.
To solve the foregoing technical problem, an embodiment of the present invention provides an HARQ-ACK transmitting apparatus, including: the configuration information sending module is suitable for sending PUCCH configuration information to the receiving UE, and the PUCCH configuration information is PUCCH configuration information of the sending UE; a PDCCH receiving module adapted to receive a PDCCH from a base station to determine N time-frequency resources for sidechain transmission; the PSSCH sending module is suitable for sending PSSCH to the receiving UE by adopting each time-frequency resource in the N time-frequency resources one by one until the receiving UE successfully decodes the data carried by the PSSCH, so that the receiving UE sends NACK feedback to the base station by adopting the PUCCH configuration information when the receiving UE fails to decode all the data carried by the N PSSCHs; wherein N is a positive integer.
To solve the foregoing technical problem, an embodiment of the present invention provides an HARQ-ACK transmitting apparatus, including: the device comprises a configuration information receiving module, a configuration information receiving module and a configuration information transmitting module, wherein the configuration information receiving module is suitable for receiving PUCCH configuration information from transmitting UE, and the PUCCH configuration information is PUCCH configuration information of the transmitting UE; the PSSCH receiving module is suitable for receiving PSSCH from the sending UE one by one until the data decoding carried by the PSSCH is successful, wherein the PSSCH is sent one by adopting each time-frequency resource in N time-frequency resources after the sending UE receives PDCCH from a base station to determine the N time-frequency resources used for side-chain transmission; a NACK sending module, adapted to send NACK feedback to the base station by using the PUCCH configuration information when decoding of all data carried by the N PSSCHs fails; wherein N is a positive integer.
In order to solve the above technical problem, an embodiment of the present invention provides a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the HARQ-ACK transmission method are executed, or the steps of the HARQ-ACK transmission method are executed.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a transmitting UE, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the HARQ-ACK transmitting method when executing the computer instructions.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a receiving UE, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the HARQ-ACK sending method when executing the computer instructions.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the embodiment of the present invention, by sending Physical Uplink Control Channel (PUCCH) configuration information to receiving UE, when the receiving UE fails to decode all data carried by N pschs, the receiving UE sends NACK feedback to the base station by using the PUCCH configuration information, and because the PUCCH configuration information is the PUCCH configuration information of the sending UE, the base station can confirm to which PDCCH Physical Downlink Control Channel (PDCCH) the NACK feedback is performed, thereby improving accuracy of determining retransmission resources and improving communication quality.
Further, when the psch is sent to the receiving UE, the sending UE may also send a Physical sidelink shared Channel (PSCCH) to the receiving UE in at least one of a first time-frequency resource and a following N-1 time-frequency resource, and the retransmission request resource indication information is included in the PDCCH.
Drawings
Fig. 1 is a data flow diagram of a HARQ-ACK transmission method in the prior art;
fig. 2 is a data flow diagram of another HARQ-ACK transmission method in the prior art;
fig. 3 is a flowchart of a HARQ-ACK transmission method in an embodiment of the present invention;
FIG. 4 is a flowchart of one embodiment of step S33 of FIG. 3;
fig. 5 is a data flow diagram of another HARQ-ACK transmission method in an embodiment of the present invention;
fig. 6 is a flowchart of a further HARQ-ACK transmission method in an embodiment of the present invention;
FIG. 7 is a flowchart of one embodiment of steps S62 and S63 of FIG. 6;
fig. 8 is a data flow diagram of a HARQ-ACK transmission method according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of an HARQ-ACK transmitting apparatus according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another HARQ-ACK transmitting apparatus according to an embodiment of the present invention.
Detailed Description
In the existing resource allocation mode supporting two types of side chains, a base station schedules a plurality of side chain resources for sending UE for side chain communication, however, if the sending UE fails to send side chain information on the two types of resources, the base station does not reschedule the sending UE again, which results in large time delay. In the prior art, to solve the above problem, the sending UE or the receiving UE may feed back HARQ information to the base station to inform that resources need to be retransmitted.
Referring to fig. 1, fig. 1 is a data flow diagram of a HARQ-ACK transmission method in the prior art. The HARQ-ACK transmission method may be used for transmitting a UE, and may include steps S101 to S109, and each step is described below.
In step S101, the transmitting UE11 receives the PDCCH from the base station 13.
In step S102, the sending UE11 determines 2 time-frequency resources for sidelink transmission.
Specifically, the base station 13 may notify, through the PDCCH, the sending UE11 of the time-frequency resources that can be used for the sidelink transmission, where the time-frequency resources may be one or two and are resources at different times, and in fig. 1, the sending UE11 is configured to determine 2 time-frequency resources used for the sidelink transmission according to the PDCCH.
In step S103, the transmitting UE11 transmits the PSCCH and the PSCCH to the receiving UE 12.
In step S104, the receiving UE12 decodes the data carried by the PSSCH, and the decoding fails.
Specifically, if the receiving UE12 successfully decodes the data carried by the PSSCH, the data transmission is completed; if the receiving UE12 fails to decode the data carried by the PSSCH, the transmitting UE11 needs to retransmit the data.
In step S105, the transmitting UE11 receives NACK feedback from the receiving UE 12.
In step S106, the transmitting UE11 transmits the psch to the receiving UE 12.
Specifically, at the time of data retransmission, the transmitting UE11 transmits only the psch to reduce signaling overhead.
In step S107, the receiving UE12 decodes the data carried by the PSSCH, and the decoding fails.
In step S108, the transmitting UE11 receives NACK feedback from the receiving UE 12.
In step S109, the transmitting UE11 transmits NACK feedback to the base station 13.
Specifically, by sending the UE11 to feed back HARQ information to the base station 13, the base station 13 can be informed of the resources that need to be retransmitted.
However, since the receiving UE12 needs to send NACK feedback to the sending UE11 and then the sending UE11 sends the NACK feedback to the base station 13, the signaling overhead is large and communication resources are occupied.
Fig. 2 is a data flow diagram of another HARQ-ACK transmission method in the prior art, which may include steps S201 to S208, and the following describes the respective steps.
In step S201, the transmitting UE21 receives the PDCCH from the base station 23.
In step S202, the sending UE21 determines 2 time-frequency resources for sidelink transmission.
In step S203, the transmitting UE21 transmits the PSCCH and the PSCCH to the receiving UE 22.
In step S204, the receiving UE22 decodes the data carried by the PSSCH, and the decoding fails.
In step S205, the transmitting UE21 receives NACK feedback from the receiving UE 22.
In step S206, the transmitting UE21 transmits the psch to the receiving UE 22.
In step S207, the receiving UE22 decodes the data carried by the PSSCH, and the decoding fails.
In the specific implementation, more details about steps S201 to S207 are described with reference to steps S101 to S107 in fig. 1, and are not described herein again.
In step S208, the receiving UE22 sends NACK feedback to the base station 23.
Specifically, the receiving UE22 directly feeds back the HARQ information to the base station 23, so that the base station 23 can be informed of the resource that needs to be retransmitted, the signaling overhead is reduced, and the occupied communication resource is reduced.
However, the inventor of the present invention has found through research that, in the prior art shown in fig. 2, because one or more receiving UEs are provided, and the base station often does not know which receiving UEs are provided, and it is not clear which UEs transmit feedback information, and it is not possible to determine which PDCCH the receiving UE performs feedback on according to the PUCCH configuration of the receiving UE, so that accurate receiving cannot be performed, that is, effective retransmission cannot be performed, and the retransmission effect is affected.
In the embodiment of the invention, the sending UE sends the PUCCH configuration information to the receiving UE so that the receiving UE adopts the PUCCH configuration information to send NACK feedback to the base station when the receiving UE fails to decode all data carried by N PSSCHs.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 3 is a flowchart of a HARQ-ACK sending method in an embodiment of the present invention. The HARQ-ACK transmission method may be used for transmitting a UE, and may include steps S31 through S33:
step S31: sending PUCCH configuration information to receiving UE, wherein the PUCCH configuration information is PUCCH configuration information of the sending UE;
step S32: receiving a PDCCH from a base station to determine N time-frequency resources for sidechain transmission;
step S33: and sending PSSCH to the receiving UE one by adopting each time frequency resource in the N time frequency resources until the receiving UE successfully decodes the data loaded by the PSSCH, so that the receiving UE adopts the PUCCH configuration information to send NACK feedback to the base station when the receiving UE fails to decode all the data loaded by the N PSSCHsh.
Wherein N is a positive integer.
In the specific implementation of step S31, the sending UE sends its own PUCCH configuration information to the receiving UE, which helps to use the PUCCH configuration information of the sending UE when the receiving UE needs to send PUCCH to the base station, so that the base station can accurately determine the received PUCCH.
Further, the PUCCH configuration information may include PUCCH resource set information, a format configuration to which each resource of the PUCCH resource set belongs, PUCCH resource information, PUCCH sequence hopping and group hopping information, and a hopping ID.
Specifically, the PUCCH configuration Information may include Information element PUCCH configuration (IE PUCCH-configuration) Information and Information element PUCCH common configuration (IE PUCCH-configuration common) Information.
The IE PUCCH-config information may include PUCCH resource set information, a format configuration to which each resource of the PUCCH resource set belongs, and PUCCH resource information; the IE PUCCH-configCommon information may include PUCCH sequence hopping and group hopping information, and hopping ID. It should be noted that, in the embodiment of the present invention, it is only necessary to enable the base station to determine the received information when the receiving UE transmits the PUCCH to the base station by using the PUCCH configuration information of the transmitting UE, and specific content of the PUCCH configuration information is not limited.
In the embodiment of the present invention, since the PUCCH configuration information of the transmitting UE may be different from the PUCCH configuration information of the receiving UE, the receiving UE sends a request for retransmission of resources according to the PUCCH configuration information of the transmitting UE, that is, according to rules (including sequence, format, frequency hopping, and the like) set by the base station and the transmitting UE, which helps the base station to determine which PDCCH the NACK feedback is directed to, thereby improving accuracy of determining retransmission resources and improving communication quality.
In a specific implementation of step S32, the sending UE receives the PDCCH from the base station to determine N time-frequency resources for sidelink transmission.
In the embodiment of the present invention, the base station may configure N time-frequency resources, which is not limited to 2 time-frequency resources in the prior art.
In the specific implementation of step S33, the sending UE sends the PSSCH to the receiving UE by using each of the N time-frequency resources one by one, and when the receiving UE successfully decodes the data carried by the PSSCH on a certain time-frequency resource, it may be determined that data transmission is completed, and the PSSCH may not be sent on the remaining time-frequency resources of the N time-frequency resources, and the base station may not be requested to perform subsequent retransmission.
However, when the receiving UE fails to decode the data carried by the PSSCH on all N time-frequency resources, it may be determined that the data transmission fails and the base station needs to be requested to perform subsequent retransmission. And at the moment, the receiving UE is set to adopt the PUCCH configuration information and send NACK feedback to the base station.
In the embodiment of the invention, the sending UE sends the PUCCH configuration information to the receiving UE so that the receiving UE adopts the PUCCH configuration information to send NACK feedback to the base station when the receiving UE fails to decode all data carried by N PSSCHs.
Referring to fig. 4, fig. 4 is a flowchart of an embodiment of step S33 in fig. 3. The step of sending the PSSCH to the receiving UE by using the time frequency resources one by one may include steps S41 to S42, which are described below.
In step S41, a first PSCCH and a first PSCCH are sent to the receiving UE in a first time-frequency resource of the N time-frequency resources.
In the embodiment of the invention, the sending UE can be set to send the PSSCH when sending the PSSCH to the receiving UE, and especially the receiving UE can be indicated to correctly receive data by sending the PSCCH when sending the PSSCH to the receiving UE by adopting the first time-frequency resource.
In step S42, a PSCCH is transmitted in addition to the PSCCH to the receiving UE in at least one of N-1 time-frequency resources other than the first time-frequency resource, where at least one of the PSCCH and the transmitted PSCCH includes resource indication information requesting retransmission, the resource indication information requesting retransmission is included in the PDCCH, and the receiving UE transmits NACK feedback to the base station on the time-frequency resource indicated by the resource indication information requesting retransmission.
Specifically, in the subsequent N-1 time-frequency resources, when the transmitting UE transmits the PSCCH to the receiving UE, the transmitting UE may additionally transmit the PSCCH on one or more time-frequency resources, and the additionally transmitted PSCCH includes the resource indication information for requesting retransmission.
The retransmission request resource indication information may be received by the transmitting UE from the base station, for example, when receiving the PDCCH, the retransmission request resource indication information is received together.
In the embodiment of the invention, the PSCCH containing the indication information of the resource requesting for retransmission is sent to the receiving UE by setting the sending UE to at least one time-frequency resource in the first time-frequency resource and the next N-1 time-frequency resources, which is beneficial to enabling the base station to receive NACK feedback on the preset time-frequency resource (namely the time-frequency resource indicated by the indication information of the resource requesting for retransmission), so that the base station can accurately confirm which PDCCH the NACK feedback is carried out aiming at according to the time-frequency resource, the accuracy of judging the retransmission resources is further improved, and the communication quality is improved.
Further, the request for retransmission resource indication information may include a PUCCH resource indication field and a slot offset; the PUCCH resource indication field is a field adopted when the receiving UE sends NACK feedback to the base station, and the time slot offset is the time slot offset between the time slot of the PDCCH and the time slot when the receiving UE sends NACK feedback to the base station.
Specifically, after the receiving UE determines the slot offset between the slot of the PDCCH and the slot when the receiving UE sends NACK feedback to the base station, a field in the slot may be determined according to the PUCCH resource indication field, so that the receiving UE determines the requirements of the base station and which fields to upload feedback information.
In the embodiment of the invention, by setting the resource indication information requesting retransmission to comprise PUCCH resource indication fields and time slot offset, the receiving UE can more accurately determine which fields to upload the feedback information, thereby further improving the accuracy of judging the retransmission resources after the base station receives the feedback information and improving the communication quality.
Referring to fig. 5, fig. 5 is a data flow diagram of another HARQ-ACK transmission method according to an embodiment of the present invention. The other HARQ-ACK transmission method may be used for transmitting a UE, and may include steps S501 to S512, which are described below.
In step S501, the transmitting UE51 transmits PUCCH configuration information to the receiving UE 52.
In step S502, the transmitting UE51 receives the PDCCH including the retransmission request resource indication information from the base station 53.
In step S503, the sending UE51 determines N time-frequency resources for sidelink transmission.
In step S504, the transmitting UE51 transmits the PSCCH and the PSCCH to the receiving UE 52.
It should be noted that the PSCCH may include the request for retransmission resource indication information, or may further include the request for retransmission resource indication information when the PSCCH is subsequently transmitted.
In step S505, the receiving UE52 fails in decoding.
In step S506, the transmitting UE51 receives NACK feedback from the receiving UE 52.
In step S507, the transmitting UE51 transmits the PSSCH to the receiving UE 52.
In step S508, the receiving UE52 fails decoding.
In step S509, the transmitting UE51 receives NACK feedback from the receiving UE 52.
In step S510, the transmitting UE51 transmits the PSCCH including the retransmission request resource indication information and the PSCCH to the receiving UE 52.
Specifically, when the transmitting UE51 transmits the PSCCH to the receiving UE52 on the nth time-frequency resource, the PSCCH may or may not be additionally transmitted.
Further, when additionally transmitting the PSCCH, the transmitting UE51 may or may not include the retransmission request resource indication information in the PSCCH.
It is to be noted that at least one of the first PSCCH and the transmitted PSCCH needs to include request retransmission resource indication information.
More specifically, taking N as 4 as an example, in 4 transmissions of the transmitting UE, the sequence number set for transmitting the PSCCH may be {1}, {1,2}, {1,3}, {1,4}, {1,2,3}, {1,2,4} or {1,2,3,4}, where at least once the PSCCH needs to be transmitted, the PSCCH includes information indicating a request for retransmission of resources.
In step S511, the receiving UE52 fails in decoding.
In step S512, on the time-frequency resource indicated by the request retransmission resource indication information, the receiving UE52 sends NACK feedback to the base station 53 by using the PUCCH configuration information.
In the specific implementation, more details about steps S501 to S512 are executed with reference to the descriptions of steps in fig. 3 to 4, which are not described herein again.
Referring to fig. 6, fig. 6 is a flowchart of a further HARQ-ACK sending method in an embodiment of the present invention. The still another HARQ-ACK transmission method may be used for a receiving UE, and may include steps S61 through S63:
step S61: receiving PUCCH configuration information from a transmitting UE, wherein the PUCCH configuration information is PUCCH configuration information of the transmitting UE;
step S62: receiving PSSCH from the sending UE one by one until the data decoding carried by the PSSCH is successful, wherein the PSSCH is sent one by adopting each time-frequency resource in N time-frequency resources after the sending UE receives PDCCH from a base station to determine the N time-frequency resources used for side-chain transmission;
step S63: and when the decoding of the data carried by the N PSSCHs fails, the PUCCH configuration information is adopted to send NACK feedback to the base station.
Wherein N is a positive integer.
In a specific implementation of step S61, after receiving the PUCCH configuration information of the transmitting UE, the receiving UE may transmit the PUCCH to the base station using the PUCCH configuration information of the transmitting UE, so that the base station can accurately determine the received PUCCH.
Further, the PUCCH configuration information may include PUCCH resource set information, a format configuration to which each resource of the PUCCH resource set belongs, PUCCH resource information, PUCCH sequence hopping and group hopping information, and a hopping ID.
In a specific implementation, more details about the PUCCH configuration information are performed with reference to the step description in fig. 3, which is not described herein again.
In the embodiment of the present invention, since the PUCCH configuration information of the transmitting UE may be different from the PUCCH configuration information of the receiving UE, the receiving UE is configured to send a request retransmission resource according to the PUCCH configuration information of the transmitting UE, that is, according to rules (including sequence, format, frequency hopping, and the like) set by the base station and the transmitting UE, which is helpful for the base station to determine which PDCCH the NACK feedback is performed on, thereby improving accuracy of determining retransmission resources and improving communication quality.
In a specific implementation of step S62, the PSSCHs are received one by one from the sending UE, and the data carried by the PSSCH is decoded after each PSSCH is received, and when the data carried by the PSSCH is successfully decoded on a certain time-frequency resource, it may be determined that data transmission is completed, and ACK may be fed back to the sending UE, so that the sending UE does not send the PSSCH on the remaining time-frequency resources of the N time-frequency resources, that is, the receiving UE does not receive the PSSCH on the remaining time-frequency resources of the N time-frequency resources, and may not request the base station to perform subsequent retransmission.
In a specific implementation of step S63, when the receiving UE fails to decode the data carried by the pscch on all N time-frequency resources, it may be determined that the data transmission fails and the base station needs to be requested to perform subsequent retransmission. And at the moment, the receiving UE is set to adopt the PUCCH configuration information and send NACK feedback to the base station.
In the embodiment of the invention, the receiving UE receives PUCCH configuration information from the sending UE, and sends NACK feedback to the base station by adopting the PUCCH configuration information when the N PSSCH-carried data are decoded unsuccessfully, and the base station can confirm which PDCCH the NACK feedback is carried out on as the PUCCH configuration information of the sending UE, so that the accuracy of judging retransmission resources is improved, and the communication quality is improved.
Referring to fig. 7, fig. 7 is a flowchart of an embodiment of steps S62 and S63 in fig. 6. The step of receiving the pschs one by one from the transmitting UE may include steps S71 through S72, and the step of transmitting NACK feedback to the base station may include S73, each of which is described below.
In step S71, a first PSCCH and a first PSCCH are received from the transmitting UE in a first time-frequency resource of the N time-frequency resources.
In the embodiment of the invention, the receiving UE can be set to receive the PSCCH when receiving the PSSCH from the sending UE, and particularly, the receiving UE can be beneficial to correctly receiving data by receiving the PSCCH when receiving the PSSCH from the sending UE by adopting the first time-frequency resource.
In step S72, a PSCCH is received in addition to the PSCCH received from the transmitting UE in at least one of N-1 time-frequency resources other than the first time-frequency resource, wherein at least one of the first PSCCH and the received PSCCH includes resource indication information for requesting retransmission, and the resource indication information for requesting retransmission is included in the PDCCH.
Specifically, in the subsequent N-1 time-frequency resources, when the receiving UE receives the PSCCH from the transmitting UE, the receiving UE may additionally receive the PSCCH on one or more time-frequency resources, and determine to request retransmission of the resource indication information in the additionally received PSCCH.
The retransmission request resource indication information may be received by the transmitting UE from the base station, for example, when receiving the PDCCH, the retransmission request resource indication information is received together.
Further, the request for retransmission resource indication information may include a PUCCH resource indication field and a slot offset; the PUCCH resource indication field is a field adopted when the receiving UE sends NACK feedback to the base station, and the time slot offset is the time slot offset between the time slot of the PDCCH and the time slot when the receiving UE sends NACK feedback to the base station.
In a specific implementation, more details about the resource indication information retransmission request are performed with reference to the description in fig. 4, and are not described herein again.
In step S73, a NACK feedback is sent to the base station on the time-frequency resource indicated by the request retransmission resource indication information.
In the embodiment of the invention, the PSCCH containing the indication information of the resource requesting for retransmission is received from the sending UE by setting at least one time-frequency resource of the receiving UE in the first time-frequency resource and the next N-1 time-frequency resources, which is beneficial to enabling the base station to receive NACK feedback on the preset time-frequency resource (namely the time-frequency resource indicated by the indication information of the resource requesting for retransmission), so that the PDCCH which the NACK feedback is directed to can be accurately confirmed according to the time-frequency resource, the accuracy of judging the retransmission resources is further improved, and the communication quality is improved.
Referring to fig. 8, fig. 8 is a data flow diagram of a further HARQ-ACK sending method in an embodiment of the present invention. The still another HARQ-ACK transmission method may be used for a receiving UE, and may include steps S801 to S812, which are described below.
In step S801, the receiving UE82 receives PUCCH configuration information from the transmitting UE 81.
In step S802, the transmitting UE81 receives the PDCCH including the retransmission request resource indication information from the base station 83.
In step S803, the sending UE81 determines N time-frequency resources for sidelink transmission.
In step S804, the receiving UE82 receives the PSCCH and the PSCCH from the transmitting UE 81.
In step S805, the receiving UE82 fails in decoding.
In step S806, the receiving UE82 transmits NACK feedback to the transmitting UE 81.
In step S807, the receiving UE82 receives the PSSCH from the transmitting UE 81.
In step S808, the receiving UE82 fails in decoding.
In step S809, the receiving UE82 transmits NACK feedback to the transmitting UE 81.
In step S810, the receiving UE82 receives the PSCCH including the retransmission request resource indication information and the PSCCH from the transmitting UE 81.
In step S811, the receiving UE82 fails in decoding.
In step S812, on the time-frequency resource indicated by the request retransmission resource indication information, the receiving UE82 sends NACK feedback to the base station 83 by using the PUCCH configuration information.
In the specific implementation, more details about steps S801 to S812 are performed with reference to the descriptions in fig. 3 to fig. 7, and are not described herein again.
Referring to fig. 9, fig. 9 is a schematic structural diagram of an HARQ-ACK transmitting apparatus according to an embodiment of the present invention. The HARQ-ACK transmitting apparatus may be configured to transmit a UE, and may include:
a configuration information sending module 91, adapted to send PUCCH configuration information to a receiving UE, where the PUCCH configuration information is PUCCH configuration information of the sending UE;
a PDCCH receiving module 92 adapted to receive a PDCCH from a base station to determine N time-frequency resources for sidelink transmission;
a PSSCH sending module 93, adapted to send a PSSCH to the receiving UE by using each of the N time-frequency resources one by one until the receiving UE successfully decodes the data carried by the PSSCH, so that the receiving UE sends NACK feedback to the base station by using the PUCCH configuration information when it fails to decode all the data carried by the N PSSCHs;
wherein N is a positive integer.
In the embodiment of the invention, PUCCH configuration information is sent to receiving UE, so that the receiving UE adopts the PUCCH configuration information to send NACK feedback to the base station when the receiving UE fails to decode all data carried by N PSSCHs.
Referring to fig. 10, fig. 10 is a schematic structural diagram of another HARQ-ACK transmitting apparatus according to an embodiment of the present invention. The another HARQ-ACK transmitting apparatus may be configured to receive the UE, and may include:
a configuration information receiving module 101, adapted to receive PUCCH configuration information from a transmitting UE, where the PUCCH configuration information is PUCCH configuration information of the transmitting UE;
a PSSCH receiving module 102, adapted to receive PSSCH from the transmitting UE one by one until decoding of data carried by the PSSCH is successful, wherein the PSSCH is transmitted one by using each of N time-frequency resources after the transmitting UE receives PDCCH from a base station to determine the N time-frequency resources used for side-chain transmission;
a NACK sending module 103, adapted to send a NACK feedback to the base station by using the PUCCH configuration information when decoding of all data carried by the N pschs fails;
wherein N is a positive integer.
In the embodiment of the invention, the receiving UE receives PUCCH configuration information from the sending UE, and sends NACK feedback to the base station by adopting the PUCCH configuration information when the N PSSCH-carried data are decoded unsuccessfully, and the base station can confirm which PDCCH the NACK feedback is carried out on as the PUCCH configuration information of the sending UE, so that the accuracy of judging retransmission resources is improved, and the communication quality is improved.
An embodiment of the present invention further provides a storage medium, on which computer instructions are stored, and the computer instructions execute the steps of the HARQ-ACK sending method shown in fig. 3 to 5 or execute the steps of the HARQ-ACK sending method shown in fig. 6 to 8 when running. The storage medium may be a computer-readable storage medium, and may include, for example, a non-volatile (non-volatile) or non-transitory (non-transitory) memory, and may further include an optical disc, a mechanical hard disk, a solid state hard disk, and the like.
The embodiment of the present invention further provides a sending UE, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the HARQ-ACK sending method shown in fig. 3 to 5 when executing the computer instructions. The terminal includes, but is not limited to, a mobile phone, a computer, a tablet computer and other terminal devices.
The embodiment of the present invention further provides a receiving UE, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the HARQ-ACK sending method shown in fig. 6 to 8 when executing the computer instructions. The terminal includes, but is not limited to, a mobile phone, a computer, a tablet computer and other terminal devices.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A HARQ-ACK transmission method is characterized by comprising the following steps:
sending PUCCH configuration information to receiving UE, wherein the PUCCH configuration information is PUCCH configuration information of the sending UE;
receiving a PDCCH from a base station to determine N time-frequency resources for sidechain transmission;
sending PSSCH to the receiving UE one by adopting each time frequency resource in the N time frequency resources until the receiving UE successfully decodes the data loaded by the PSSCH, so that the receiving UE sends NACK feedback to the base station by adopting the PUCCH configuration information when the receiving UE fails to decode all the data loaded by the N PSSCHs;
wherein N is a positive integer.
2. The method of claim 1, wherein the step of sending the PSSCH to the receiving UE by using the time-frequency resources one by one comprises:
sending a first PSCCH and a first PSSCH to the receiving UE at a first time-frequency resource in the N time-frequency resources;
at least one time frequency resource in the N-1 time frequency resources except the first time frequency resource also sends PSCCH in addition to sending PSSCH to the receiving UE;
wherein at least one of the first PSCCH and the transmitted PSCCH includes resource indication information for retransmission request, the resource indication information for retransmission request is included in the PDCCH, and the receiving UE transmits NACK feedback to the base station on a time-frequency resource indicated by the resource indication information for retransmission request.
3. The HARQ-ACK transmitting method according to claim 2, wherein the retransmission request resource indication information includes a PUCCH resource indication field and a slot offset;
the PUCCH resource indication field is a field adopted when the receiving UE sends NACK feedback to the base station, and the time slot offset is the time slot offset between the time slot of the PDCCH and the time slot when the receiving UE sends NACK feedback to the base station.
4. The HARQ-ACK transmission method according to claim 1,
the PUCCH configuration information comprises PUCCH resource set information, and format configuration, PUCCH resource information, PUCCH sequence hopping and group hopping information and hopping ID which each resource of the PUCCH resource set belongs to.
5. A HARQ-ACK transmission method is characterized by comprising the following steps:
receiving PUCCH configuration information from a transmitting UE, wherein the PUCCH configuration information is PUCCH configuration information of the transmitting UE;
receiving PSSCH from the sending UE one by one until the data decoding carried by the PSSCH is successful, wherein the PSSCH is sent one by adopting each time-frequency resource in N time-frequency resources after the sending UE receives PDCCH from a base station to determine the N time-frequency resources used for side-chain transmission;
when the decoding of the data carried by the N PSSCHs fails, the PUCCH configuration information is adopted to send NACK feedback to the base station;
wherein N is a positive integer.
6. The HARQ-ACK transmission method of claim 5, wherein receiving the PSSCHs one by one from the transmitting UE comprises:
receiving a first PSCCH and a first PSSCH from the sending UE in a first time-frequency resource of the N time-frequency resources;
receiving a PSCCH in addition to receiving a PSSCH from the transmitting UE in at least one of the N-1 time-frequency resources other than the first time-frequency resource;
wherein at least one of the first PSCCH and the received PSCCH includes retransmission request resource indication information, and the retransmission request resource indication information is included in the PDCCH, and sending NACK feedback to the base station includes:
and sending NACK feedback to the base station on the time-frequency resource indicated by the resource indication information requesting retransmission.
7. The HARQ-ACK transmission method according to claim 6,
the resource indication information of request retransmission comprises PUCCH resource indication fields and slot offset;
the PUCCH resource indication field is a field adopted when the receiving UE sends NACK feedback to the base station, and the time slot offset is the time slot offset between the time slot of the PDCCH and the time slot when the receiving UE sends NACK feedback to the base station.
8. The HARQ-ACK transmission method according to claim 5,
the PUCCH configuration information comprises PUCCH resource set information, and format configuration, PUCCH resource information, PUCCH sequence hopping and group hopping information and hopping ID which each resource of the PUCCH resource set belongs to.
9. An HARQ-ACK transmitting apparatus, comprising:
the configuration information sending module is suitable for sending PUCCH configuration information to the receiving UE, and the PUCCH configuration information is PUCCH configuration information of the sending UE;
a PDCCH receiving module adapted to receive a PDCCH from a base station to determine N time-frequency resources for sidechain transmission;
the PSSCH sending module is suitable for sending PSSCH to the receiving UE by adopting each time-frequency resource in the N time-frequency resources one by one until the receiving UE successfully decodes the data carried by the PSSCH, so that the receiving UE sends NACK feedback to the base station by adopting the PUCCH configuration information when the receiving UE fails to decode all the data carried by the N PSSCHs;
wherein N is a positive integer.
10. An HARQ-ACK transmitting apparatus, comprising:
the device comprises a configuration information receiving module, a configuration information receiving module and a configuration information transmitting module, wherein the configuration information receiving module is suitable for receiving PUCCH configuration information from transmitting UE, and the PUCCH configuration information is PUCCH configuration information of the transmitting UE;
the PSSCH receiving module is suitable for receiving PSSCH from the sending UE one by one until the data decoding carried by the PSSCH is successful, wherein the PSSCH is sent one by adopting each time-frequency resource in N time-frequency resources after the sending UE receives PDCCH from a base station to determine the N time-frequency resources used for side-chain transmission;
a NACK sending module, adapted to send NACK feedback to the base station by using the PUCCH configuration information when decoding of all data carried by the N PSSCHs fails;
wherein N is a positive integer.
11. A storage medium having stored thereon computer instructions, wherein the computer instructions are operable to perform the steps of the HARQ-ACK transmission method of any of claims 1 to 4, or to perform the steps of the HARQ-ACK transmission method of any of claims 5 to 8.
12. A transmitting UE comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor when executing the computer instructions performs the steps of the HARQ-ACK transmitting method of any of claims 1 to 4.
13. A receiving UE comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor when executing the computer instructions performs the steps of the HARQ-ACK transmission method of any of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910117029.0A CN111294180B (en) | 2019-02-15 | 2019-02-15 | HARQ-ACK transmission method and device, storage medium, transmission UE, and reception UE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910117029.0A CN111294180B (en) | 2019-02-15 | 2019-02-15 | HARQ-ACK transmission method and device, storage medium, transmission UE, and reception UE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111294180A true CN111294180A (en) | 2020-06-16 |
| CN111294180B CN111294180B (en) | 2022-11-04 |
Family
ID=71026305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910117029.0A Active CN111294180B (en) | 2019-02-15 | 2019-02-15 | HARQ-ACK transmission method and device, storage medium, transmission UE, and reception UE |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111294180B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436873A (en) * | 2020-08-27 | 2021-03-02 | 上海移远通信技术股份有限公司 | Method and apparatus in a node used for wireless communication |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056228A (en) * | 2009-11-02 | 2011-05-11 | 夏普株式会社 | Uplink hybrid automatic repeat request response information and indication bond transmission method and base station |
| CN103874048A (en) * | 2012-12-14 | 2014-06-18 | 中兴通讯股份有限公司 | Scheduling information transmission method between devices and device thereof |
| CN104823400A (en) * | 2012-09-21 | 2015-08-05 | 黑莓有限公司 | Inter-device communication in wireless communication systems |
-
2019
- 2019-02-15 CN CN201910117029.0A patent/CN111294180B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056228A (en) * | 2009-11-02 | 2011-05-11 | 夏普株式会社 | Uplink hybrid automatic repeat request response information and indication bond transmission method and base station |
| CN104823400A (en) * | 2012-09-21 | 2015-08-05 | 黑莓有限公司 | Inter-device communication in wireless communication systems |
| CN103874048A (en) * | 2012-12-14 | 2014-06-18 | 中兴通讯股份有限公司 | Scheduling information transmission method between devices and device thereof |
Non-Patent Citations (2)
| Title |
|---|
| 3RD GENERATION PARTNERSHIP PROJECT: "《3GPP TS 38.211 V15.1.0》", 3 April 2018 * |
| SAMSUNG: ""Discussion on Physical Layer Procedures"", 《3GPP TSG RAN WG1 MEETING #95 R1-1812985》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436873A (en) * | 2020-08-27 | 2021-03-02 | 上海移远通信技术股份有限公司 | Method and apparatus in a node used for wireless communication |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111294180B (en) | 2022-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11336403B2 (en) | Group-based hybrid automatic repeat request (HARQ) acknowledgement feedback | |
| US10924225B2 (en) | Group-based hybrid automatic repeat request (HARQ) acknowledgement feedback | |
| US8392784B2 (en) | Method and apparatus of handling TTI bundling retransmission | |
| CN110149173B (en) | Semi-persistent scheduling transmission method, network side equipment and user terminal | |
| US10003994B2 (en) | Techniques for identifying physical hybrid automatic request indicator channel resources | |
| KR20190032553A (en) | Hybrid automatic retransmission request-acknowledgment (HARQ-ACK) feedback method and apparatus | |
| RU2019102660A (en) | METHOD OF OPERATION OF TERMINAL AND BASE STATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE SUPPORTING IT | |
| JP6618633B2 (en) | Wireless network node, wireless device, and method implemented therein | |
| CN104348582B (en) | The method and apparatus for being used for transmission control information | |
| TW201705709A (en) | Uplink control information transmission method and device | |
| US20200337024A1 (en) | Data transmission method and device | |
| US11943064B2 (en) | Methods and devices for transmission of feedback information and data retransmission | |
| WO2018112922A1 (en) | Data transmission method and device | |
| US8509795B2 (en) | Method of performing data transmission corresponding to semi-persistent resources in wireless communications system and related device | |
| WO2019213895A1 (en) | Monitoring pdcch for uplink harq-ack feedback | |
| KR101502255B1 (en) | Method and apparatus for processing hybrid automatic repeat request | |
| US11304202B2 (en) | Method for transmitting uplink control information, and related product | |
| CN111294180B (en) | HARQ-ACK transmission method and device, storage medium, transmission UE, and reception UE | |
| WO2022068906A1 (en) | Wave beam indication method and apparatus, network side device, and terminal | |
| WO2018228264A1 (en) | Method and apparatus for sending and receiving uplink information | |
| WO2018112923A1 (en) | Method and device for scheduling emtc resources | |
| CN111130731B (en) | NR (noise reduction) car networking SFCI (Small form factor communication) uploading method and device, storage medium, user side and base station | |
| WO2021007778A1 (en) | Method and apparatus for resource allocation in v2x communication | |
| JP2011259125A5 (en) | ||
| CN108141786B (en) | Base station device, terminal device, communication method, and recording medium |
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 |
Address after: 100089 18 / F, block B, Zhizhen building, No.7, Zhichun Road, Haidian District, Beijing Applicant after: Beijing Ziguang zhanrui Communication Technology Co.,Ltd. Address before: 100084, Room 516, building A, Tsinghua Science Park, Beijing, Haidian District Applicant before: BEIJING SPREADTRUM HI-TECH COMMUNICATIONS TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |