WO2022134950A1 - Multi-carrier data transmission method and apparatus, and storage medium, terminal, base station and ap - Google Patents

Multi-carrier data transmission method and apparatus, and storage medium, terminal, base station and ap Download PDF

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Publication number
WO2022134950A1
WO2022134950A1 PCT/CN2021/131156 CN2021131156W WO2022134950A1 WO 2022134950 A1 WO2022134950 A1 WO 2022134950A1 CN 2021131156 W CN2021131156 W CN 2021131156W WO 2022134950 A1 WO2022134950 A1 WO 2022134950A1
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Prior art keywords
carrier
harq process
carriers
data transmission
network side
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PCT/CN2021/131156
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French (fr)
Chinese (zh)
Inventor
邓云
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展讯通信（上海）有限公司
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Publication of WO2022134950A1 publication Critical patent/WO2022134950A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a multi-carrier data transmission method and device, a storage medium, a terminal, a base station, and an AP.
  • Terminals can access the Internet through Access Points (APs), and Long Term Evolution (Long Term Evolution) is used between User Equipment (UEs) and APs. Evolution, LTE for short) or New Radio (New Radio, NR for short) wireless technology, the access point AP can integrate some core network functions, and can be deployed in licensed or unlicensed spectrum. This access point AP can be flexibly deployed in places such as homes and enterprises to provide services for a small number of users. This access point AP serves fewer users and may be more stationary.
  • AP Access Points
  • LTE Long Term Evolution
  • NR New Radio
  • both the access point AP and the UE need to use listen before conversation or listen before talk (LBT) to detect that the channel is idle before transmitting signaling and data.
  • LBT listen before conversation or listen before talk
  • the mechanism of carrier aggregation can be used to configure multiple serving carriers for the UE.
  • the UE When the UE adopts carrier aggregation, the UE has a primary cell (Primary Cell, PCell for short) corresponding to a primary carrier (Primary Carrier Component, PCC for short) and one or more secondary carriers (Secondary Carrier Component, referred to as SCC) corresponding secondary cells ( Secondary Cell, referred to as SCell), for uplink transmission of Packet Data Convergence Protocol (PDCP) data packets, the UE can transmit through PCell or through SCell.
  • PCell Primary Cell
  • SCC Secondary Carrier Component
  • SCell Secondary Cell
  • the data packets that are not successfully transmitted can only be transmitted by the original carrier, and if the channel use right of the original carrier cannot be continuously obtained, it will cause a large transmission delay.
  • the technical problem solved by the present invention is how to solve the problem of data transmission time delay due to the continuous inability to obtain the channel use right of the original carrier in the current carrier aggregation.
  • an embodiment of the present invention provides a multi-carrier data transmission method, the method includes: receiving configuration information sent by the network side, and determining multiple carriers sharing the HARQ process according to the configuration information; Perform HARQ retransmission with the network side, and the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
  • each carrier indicates the HARQ process identifier through a different number of bits.
  • the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
  • the configuration information is sent through RRC signaling.
  • the method before performing HARQ retransmission with the network side through the target carrier, the method further includes: using a shared HARQ process to perform data transmission with the network side through the original carrier; Performing HARQ retransmission on the network side includes: when data transmission is unsuccessful, receiving a scheduling instruction from the network side, where the scheduling instruction is used to instruct one or more carriers to perform HARQ retransmission, the one or more carriers including the original carrier and/or other carriers that share the HARQ process with the original carrier; determining the target carrier from the one or more carriers, and using the shared HARQ process to communicate with the target carrier through the target carrier The network side performs HARQ retransmission.
  • the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
  • the method further includes: among the one or more carriers, using the carrier that obtains the channel use right preferentially as the target carrier.
  • the method further includes: in the one or more carriers, if the channel use rights of several carriers are acquired at the same time, selecting the carrier with the best channel quality as the target carrier.
  • the shared HARQ process is used to transmit low-latency data
  • the method further includes: receiving a mapping relationship between the low-latency logical channel configured on the network side and the shared HARQ process, the low-latency The logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the network side through the shared HARQ process.
  • the frequency band in which the device on the network side works is deployed in an unlicensed spectrum.
  • the method further includes: simultaneously performing data transmission with the network side on multiple carriers sharing the HARQ process.
  • An embodiment of the present invention further provides a multi-carrier data transmission method, the method includes: sending configuration information to a UE, so that the UE determines a plurality of carriers sharing a HARQ process according to the configuration information; The UE performs HARQ retransmission, and the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
  • each carrier indicates the HARQ process identifier through a different number of bits.
  • the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
  • the sending the configuration information to the UE includes: sending the configuration information to the UE through RRC signaling.
  • HARQ retransmission before performing HARQ retransmission with the UE through the target carrier, further comprising: using a shared HARQ process to perform data transmission with the UE through the original carrier; performing data transmission with the UE through the target carrier HARQ retransmission includes: when data transmission is unsuccessful, sending a scheduling instruction to the UE, so that the UE determines the target carrier; using the shared HARQ process to perform HARQ with the UE through the target carrier Retransmission; wherein the scheduling instruction is used to indicate one or more carriers for HARQ retransmission, and the one or more carriers include the original carrier and/or other carriers that share the HARQ process with the original carrier.
  • the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
  • the shared HARQ process is used to transmit low-latency data
  • the method further includes: sending to the UE a mapping relationship between the low-latency-configured logical channel and the shared HARQ process, the low-latency
  • the logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the UE through the shared HARQ process.
  • the frequency band in which the device on the network side performing the method works is deployed in an unlicensed spectrum.
  • the method further includes: simultaneously performing data transmission with the UE on multiple carriers sharing the HARQ process.
  • An embodiment of the present invention further provides a multi-carrier data transmission device, the device includes: a configuration information receiving module, configured to receive configuration information sent by an AP, and determine a plurality of carriers sharing a HARQ process according to the configuration information; first A retransmission module, configured to perform HARQ retransmission with the network side through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • An embodiment of the present invention further provides a multi-carrier data transmission apparatus, the apparatus includes: a configuration information sending module, configured to send configuration information to a UE, so that the UE determines a plurality of carriers sharing a HARQ process according to the configuration information ; a second retransmission module, configured to perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or other carriers that share the HARQ process with the original carrier.
  • An embodiment of the present invention further provides a storage medium, on which a computer program is stored, and when the computer program is run by a processor, the steps of any one of the methods are executed.
  • An embodiment of the present invention further provides a terminal, including the above-mentioned multi-carrier data transmission device, or including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs The computer program executes the steps of any one of the methods.
  • An embodiment of the present invention further provides a base station, including the above-mentioned multi-carrier data transmission apparatus, or, including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs The computer program executes the steps of any one of the methods.
  • Embodiments of the present invention further provide an AP, including the above-mentioned multi-carrier data transmission apparatus, or, including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs The computer program executes the steps of any one of the methods.
  • An embodiment of the present invention provides a multi-carrier data transmission method, the method includes: receiving configuration information sent by a network side, and determining a plurality of carriers sharing a HARQ process according to the configuration information; and communicating with the network side through a target carrier For HARQ retransmission, the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the data packets that have not been successfully transmitted can be transmitted by the original carrier or other carriers that share the HARQ process with the original carrier.
  • Other carriers successfully transmit data, which solves the delay problem in the prior art solution.
  • cross-carrier HARQ retransmission of data can be implemented to avoid large transmission delay.
  • the UE can detect multiple carriers at the same time, and retransmit the carrier with the right to use the channel first to reduce the transmission delay; select the carrier with good channel quality for retransmission to improve the transmission success. The probability.
  • the UE can simultaneously perform data transmission with the network side on multiple carriers sharing the HARQ process, thereby providing a new duplication mechanism.
  • the side that receives the data can jointly detect the received data on the multiple carriers to determine whether the data transmission is accurate and improve the detection effect.
  • FIG. 1 is a schematic flowchart of a multi-carrier data transmission method according to an embodiment of the present invention
  • FIG. 2 is a schematic partial flowchart of a multi-carrier data transmission method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another multi-carrier data transmission method in an embodiment of the present invention.
  • FIG. 4 is a schematic partial flowchart of another multi-carrier data transmission method in an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a multi-carrier data transmission apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another multi-carrier data transmission apparatus in an embodiment of the present invention.
  • an embodiment of the present invention provides a multi-carrier data transmission method, the method includes: receiving configuration information sent by the network side, and determining multiple carriers sharing the HARQ process according to the configuration information; Perform HARQ retransmission with the network side, and the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • FIG. 1 is a schematic flowchart of a multi-carrier data transmission method according to an embodiment of the present invention. The method specifically includes the following steps:
  • Step S101 receiving configuration information sent by the network side, and determining multiple carriers sharing the HARQ process according to the configuration information;
  • the network side that is, the network side device, may be a base station (eNB/gNB) or an access point (Acess Point, AP for short).
  • eNB/gNB base station
  • AP Access Point
  • the configuration information is information sent by the network side to the terminal (also referred to as terminal equipment or user equipment (User Equipment, UE for short)), and the configuration information is used to indicate that two or more carriers share the HARQ process. Two or more carriers sharing a HARQ process can schedule the shared HARQ process.
  • the configuration information may also indicate the identifier of the HARQ process shared by two or more carriers, so that the UE can determine which carriers share the HARQ process, and which one or several HARQ processes are the shared HARQ process. .
  • the number of the shared HARQ processes is less than or equal to the number of all processes of the multiple carriers. That is, all HARQ processes of multiple carriers may be configured as shared HARQ processes, or a part of all HARQ processes of multiple carriers may be configured as shared HARQ processes.
  • the AP manages four serving cells with different frequencies, which are denoted as PCell and SCell1, Scell2, and Scell3.
  • the AP can broadcast system messages on only one carrier so that the UE can camp on it.
  • the AP can configure carrier aggregation for the terminal.
  • the terminal is configured with PCell and SCell1, Scell2, Scell3.
  • the terminal also establishes a signaling radio bearer and a data radio bearer.
  • the AP configures the UE's PCell and SCell1 as two carriers that share the HARQ process through configuration information.
  • the number of shared HARQ processes of PCell and SCell1 is 16, and the identifier of the shared HARQ process (Identify, ID for short) ranges from 0 to 15.
  • Step S102 perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the original carrier for transmitting data is the previous data transmission.
  • the carrier used for this transmission is denoted as the original carrier of the transmission data.
  • the carrier for retransmission is denoted as the target carrier, and the target carrier may be the original carrier or another carrier that shares the HARQ process with the original carrier.
  • the original carrier can be used for retransmission.
  • the original carrier can call the shared HARQ process for retransmission, or it can be retransmitted by other carriers that can call the shared HARQ process.
  • the configuration information is sent through radio resource control (Radio Resource Control, RRC for short) signaling.
  • radio resource control Radio Resource Control, RRC for short
  • the frequency band working on the network side is deployed in an unlicensed spectrum.
  • APs provide wireless services in homes or companies, are deployed in unlicensed spectrum, and use carrier aggregation to provide services for terminals.
  • the method shown in FIG. 1 is performed by a terminal, also called terminal equipment or user equipment (User Equipment, UE for short).
  • a terminal also called terminal equipment or user equipment (User Equipment, UE for short).
  • UE User Equipment
  • the unsuccessfully transmitted data packets can be transmitted by the original carrier or other carriers that share the HARQ process with the original carrier.
  • the channel use right of the original carrier cannot be continuously obtained, the data can also be successfully transmitted through other carriers.
  • the time delay problem in the prior art solution is solved.
  • the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
  • the shared HARQ process is an HARQ process that can be invoked by more than one carrier.
  • a non-shared HARQ process is a HARQ process that can only be invoked by a single carrier.
  • the buffer (or buffer space, Buffer) occupied by the shared HARQ process is larger than the buffer space occupied by the non-shared HARQ process.
  • the buffer occupied by the shared HARQ process may be N times that of the non-shared HARQ process, where N is a natural number greater than or equal to 2.
  • the Buffer occupied by all 16 HARQ processes is 1G bits. If the 16 HARQ processes are all non-shared HARQ processes, the Buffer occupied by each HARQ process is 1/16G bits. If the 16 HARQ processes are HARQ processes shared by two carriers, the total Buffer is adjusted to 2G bits, and the Buffer occupied by each HARQ process is 2/16G bits.
  • the number of bits of the HARQ Process ID in the existing downlink control signaling (currently 4 bits) can be used to indicate the HARQ process.
  • each carrier indicates a HARQ process ID (HARQ Process ID) through a different number of bits.
  • HARQ Process ID HARQ Process ID
  • each shared HARQ process may correspond to N process IDs for N carriers to call respectively.
  • the first carrier can schedule HARQ process IDs 0 to 15; the second carrier can schedule HARQ process IDs 8 to 23, where HARQ process IDs 8 to 23 IDs 8 to 15 are shared HARQ processes.
  • the original HARQ process ID can be used. process IDs 8 to 23.
  • FIG. 2 is a partial flowchart of another multi-carrier data transmission method according to an embodiment of the present invention.
  • the HARQ replay is performed with the network side through the target carrier.
  • the method further includes: step S201, using a shared HARQ process to perform data transmission with the network side through the original carrier;
  • the performing HARQ retransmission with the network side through the target carrier in step S102 includes: step S202, detecting whether the data transmission is successful; when the data transmission is unsuccessful, executing step S203, receiving a scheduling instruction from the network side, the The scheduling instruction is used to indicate one or more carriers for HARQ retransmission, and the one or more carriers include the original carrier and/or other carriers that share the HARQ process with the original carrier; step S204, from the one or more carriers
  • the target carrier is determined from one or more carriers, and the shared HARQ process is used to perform HARQ retransmission with the network side through the target carrier.
  • the data transmission is successful, the current data transmission ends.
  • the AP schedules the original carrier for data retransmission . If the transmission is unsuccessful, and the UE cannot obtain the channel use right of the original carrier for a period of time, the AP schedules other carriers that share the HARQ process with the original carrier to perform data retransmission.
  • the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
  • the downlink control signaling of the original carrier refers to sending downlink control signaling to the UE through the original carrier.
  • the AP configures the UE's PCell and SCell1 as two carriers sharing the HARQ process through configuration information.
  • the AP schedules the UE to perform uplink (UpLink, UL) transmission on the PCell
  • the UE obtains the right to use the channel, according to The amount of data that can be transmitted, select or intercept the data of the corresponding length, and transmit it through the UL PCell.
  • the UE performs the first transmission of the data through the HARQ process 1 at this time, and the transmitted data is stored in the Buffer of the HARQ process 1.
  • HARQ process 1 is a shared HARQ process.
  • the UE After the UE uses the PCell for this transmission, it receives the feedback information sent by the AP through the downlink control signaling.
  • the AP can schedule the UE to retransmit, but then the UE continues to be unable to obtain channel usage on the UL PCell. right, resulting in unsuccessful uplink transmission.
  • the AP can schedule the UE to perform retransmission on SCell1 through downlink control signaling on PCell or downlink control signaling on SCell1, and the terminal performs LBT on SCell1. If the channel usage right is successfully obtained, The data in the Buffer in HARQ process 1 can be retransmitted to the AP through SCell1.
  • the UE receives the feedback sent by the access point AP. If the transmission is successful, the UE can clear the HARQ process 1; if the transmission is still unsuccessful, before the maximum number of retransmissions is reached, the UE can wait for the uplink scheduling of the AP, and pass PCell or PCell again. SCell1 retransmits the unsuccessfully transmitted packets again.
  • the carrier scheduling method of downlink transmission is similar to that of uplink transmission, and will not be described in detail here.
  • cross-carrier HARQ retransmission of data can be implemented to avoid large transmission delay.
  • the method further includes: among the one or more carriers, using the carrier that obtains the channel use right preferentially as the target carrier.
  • the method further includes: in the one or more carriers, if the channel use rights of several carriers are acquired at the same time, selecting the carrier with the best channel quality as the target carrier.
  • the UE When the network side indicates the uplink grant allocated on multiple carriers through the scheduling instruction, the UE simultaneously probes on the multiple carriers, and takes the carrier for which the channel usage right is preferentially obtained as the target carrier.
  • the carrier with the best channel quality is the carrier with the best channel quality among the channel use rights obtained simultaneously for several carriers.
  • the UE when multiple carriers share the HARQ process, the UE can detect multiple carriers at the same time, and retransmit using the carrier for which the channel usage right is obtained first, so as to reduce the transmission delay; The probability of successful transmission.
  • the shared HARQ process is used to transmit low-latency data
  • the method further includes: receiving a mapping relationship between a logical channel configured on the network side with low-latency and the shared HARQ process, the low-latency logical channel
  • the delayed logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the network side through the shared HARQ process.
  • Low-latency data is data that requires high real-time performance and can be configured on the network side.
  • the low-latency data is data of a preset service that requires low latency values.
  • the non-shared HARQ process is used to transmit data of general services.
  • the network side configures the mapping relationship between the low-latency logical channel and the shared HARQ process. After receiving the mapping relationship, the UE transmits the data of the logical channel configured with the mapping relationship through the shared HARQ process.
  • the method further includes: simultaneously performing data transmission with the network side on multiple carriers sharing the HARQ process.
  • the side that receives the data may perform joint detection on the received data on the multiple carriers to determine whether the received data is accurate.
  • the side receiving data is the network side; in downlink transmission, the side receiving data is the UE side.
  • the base station can schedule the UE to transmit the same TB (Transport Block) on two carriers simultaneously, providing a new duplication mechanism.
  • the base station may schedule the UE to transmit the same TB simultaneously on multiple carriers sharing the HARQ process.
  • the base station can schedule the UE to perform uplink transmission on two carriers at the same time through a downlink control signaling, because the base station configures the carrier sharing the HARQ process through RRC signaling in advance, and after the base station configures the duplication at the same time, the UE is The same TB is sent on the carrier corresponding to the shared HARQ process.
  • the uplink carrier information does not need to be indicated in the downlink control signaling, and the existing downlink signaling format can be fully utilized without modification.
  • joint detection can be performed on the received data on the two carriers to improve the detection effect.
  • the UE can simultaneously perform data transmission with the network side on multiple carriers sharing the HARQ process, thereby providing a new duplication mechanism.
  • the side that receives the data can jointly detect the received data on the multiple carriers to determine whether the data transmission is accurate and improve the detection effect.
  • FIG. 3 is a schematic flowchart of another multi-carrier data transmission method according to an embodiment of the present invention. The method includes:
  • Step S301 sending configuration information to a UE, so that the UE determines a plurality of carriers sharing the HARQ process according to the configuration information;
  • Step S302 perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
  • each carrier indicates the HARQ process identifier through a different number of bits.
  • the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
  • the sending the configuration information to the UE includes: sending the configuration information to the UE through RRC signaling.
  • the method before performing HARQ retransmission with the UE through the target carrier, the method further includes:
  • Step S401 using a shared HARQ process to perform data transmission with the UE through the original carrier;
  • the performing HARQ retransmission with the UE through the target carrier includes:
  • Step S402 when the data transmission is unsuccessful, send a scheduling instruction to the UE, so that the UE determines the target carrier;
  • Step S403 using the shared HARQ process to perform HARQ retransmission with the UE through the target carrier;
  • the scheduling instruction is used to indicate one or more carriers for HARQ retransmission, and the one or more carriers include the original carrier and/or other carriers that share the HARQ process with the original carrier.
  • the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
  • the shared HARQ process is used to transmit low-latency data
  • the method further includes: sending to the UE a mapping relationship between the low-latency-configured logical channel and the shared HARQ process, the low-latency
  • the logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the UE through the shared HARQ process.
  • the frequency band in which the device on the network side performing the method works is deployed in an unlicensed spectrum.
  • the method further includes: simultaneously performing data transmission with the UE on multiple carriers sharing the HARQ process.
  • FIG. 3 and FIG. 4 are performed by a network-side device, such as a base station or an AP.
  • a network-side device such as a base station or an AP.
  • FIG. 3 or FIG. 4 For more details on the working principle and working mode of the method shown in FIG. 3 or FIG. 4 , reference may be made to the relevant descriptions on the network side or the AP in the above-mentioned FIG. 1 and FIG. 2 , which will not be repeated here.
  • FIG. 5 is a schematic structural diagram of a multi-carrier data transmission apparatus according to an embodiment of the present invention.
  • the multi-carrier data transmission apparatus 50 includes:
  • a configuration information receiving module 501 configured to receive the configuration information sent by the AP, and determine a plurality of carriers sharing the HARQ process according to the configuration information;
  • the first retransmission module 502 is configured to perform HARQ retransmission with the network side through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the above-mentioned multi-carrier data transmission device 50 may correspond to a chip with a communication function in the terminal, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip, SOC for short), A baseband chip, etc.; or a chip module including a chip with a communication function in the terminal; or a chip module with a data processing function chip, or a terminal.
  • a chip with a communication function in the terminal or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip, SOC for short), A baseband chip, etc.
  • a chip module including a chip with a communication function in the terminal or a chip module with a data processing function chip, or a terminal.
  • FIG. 6 is a schematic structural diagram of a multi-carrier data transmission apparatus according to an embodiment of the present invention.
  • the multi-carrier data transmission apparatus 60 includes:
  • a configuration information sending module 601 configured to send configuration information to a UE, so that the UE determines a plurality of carriers sharing the HARQ process according to the configuration information;
  • the second retransmission module 602 is configured to perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  • the above-mentioned multi-carrier data transmission device 60 may correspond to a chip with a communication function in a base station or an AP, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip, SOC for short) ), baseband chip, etc.; or correspond to a chip module including a communication function chip in a base station or AP; or correspond to a chip module with a data processing function chip, or correspond to a base station or AP.
  • a chip with a communication function in a base station or an AP or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip, SOC for short) ), baseband chip, etc.
  • a chip module including a communication function chip in a base station or AP or correspond to a chip module with a data processing function chip, or correspond to a base station or AP.
  • each module/unit included in each device and product described in the above embodiments it may be a software module/unit, a hardware module/unit, or a part of a software module/unit, a part of which is a software module/unit. is a hardware module/unit.
  • each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program.
  • Running on the processor integrated inside the chip the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it
  • the units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.
  • An embodiment of the present invention further provides a storage medium on which a computer program is stored, and when the computer program is run by a processor, the steps of the methods described in FIGS. 1 to 2 or the methods described in FIGS. 3 to 4 are executed.
  • the storage medium may be a computer-readable storage medium, for example, may include non-volatile memory (non-volatile) or non-transitory (non-transitory) memory, and may also include optical disks, mechanical hard disks, solid-state disks, and the like.
  • An embodiment of the present invention further provides a terminal, where the terminal may be a UE.
  • the terminal may include the multi-carrier data transmission apparatus 50 described above in FIG. 5 .
  • the terminal may include a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes the method described in FIG. 1 to FIG. 2 when the processor runs the computer program. step.
  • the embodiment of the present invention also provides a base station or an AP.
  • the base station or AP may include the multi-carrier data transmission apparatus 60 described above in FIG. 6 .
  • the base station or AP may include a memory and a processor, the memory stores a computer program that can be executed on the processor, and the processor executes the computer program described in FIG. 3 to FIG. 4 when the processor runs the computer program. steps of the method.
  • the network side refers to a communication network that provides communication services for terminals, including a base station of a wireless access network, a base station controller of a wireless access network, and a device on the core network side. .
  • the terminals in the embodiments of this application may refer to various forms of user equipment (user equipment, UE for short), access terminals, subscriber units, subscriber stations, mobile stations, and mobile stations (mobile stations, built as MSs) ), remote station, remote terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent or user device.
  • user equipment user equipment
  • UE user equipment
  • access terminals subscriber units, subscriber stations, mobile stations, and mobile stations (mobile stations, built as MSs)
  • remote station remote terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent or user device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices with wireless communication capabilities, terminal devices in future 5G networks or future evolved public land mobile communication networks (Public Land Mobile Network, referred to for short) PLMN), which is not limited in this embodiment of the present application.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the embodiment of this application defines the unidirectional communication link from the access network to the terminal as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction ; And the one-way communication link from the terminal to the access network is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.
  • connection in the embodiments of this application refers to various connection modes such as direct connection or indirect connection to realize communication between devices, which is not limited in this embodiment of the application.
  • the processor may be a central processing unit (CPU for short), and the processor may also be other general-purpose processors, digital signal processors ( digital signal processor, DSP for short), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memory.
  • the non-volatile memory can be read-only memory (read-only memory, referred to as ROM), programmable read-only memory (programmable ROM, referred to as PROM), erasable programmable read-only memory (erasable PROM, referred to as EPROM) , Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM for short) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous Dynamic random access memory
  • SDRAM synchronous Dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchronous connection dynamic random access memory
  • DR RAM direct memory bus random access memory

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Abstract

A multi-carrier data transmission method and apparatus, and a storage medium, a terminal, a base station and an AP. The method comprises: receiving configuration information sent by a network side, and determining, according to the configuration information, a plurality of carriers that share an HARQ process; and performing HARQ retransmission with the network side by means of a target carrier, wherein the target carrier is an original carrier that transmits data, or another carrier that shares the HARQ process with the original carrier. Therefore, the problem in existing carrier aggregation of a data transmission delay caused by it continuously being impossible to obtain a channel usage right of an original carrier can be solved.

Description

多载波数据传输方法及装置、存储介质、终端、基站、APMulti-carrier data transmission method and device, storage medium, terminal, base station, AP
本申请要求2020年12月21日提交中国专利局、申请号为202011523249.2、发明名称为“多载波数据传输方法及装置、存储介质、终端、基站、AP”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed on December 21, 2020, with the application number of 202011523249.2 and the invention titled "Multi-carrier data transmission method and device, storage medium, terminal, base station, AP", all of which are The contents are incorporated herein by reference.
技术领域technical field
本发明涉及通信技术领域，尤其涉及一种多载波数据传输方法及装置、存储介质、终端、基站、AP。The present invention relates to the field of communication technologies, and in particular, to a multi-carrier data transmission method and device, a storage medium, a terminal, a base station, and an AP.
背景技术Background technique
现在考虑引入一种新的无线通信***，终端可以通过接入点(Access Point，简称AP)接入互联网，用户设备(User Equipment，简称UE)和接入点AP之间采用长期演进(Long Term Evolution，简称LTE)或新空口(New Radio，简称NR)的无线技术，接入点AP可以集成部分核心网的功能，可以部署在授权频谱，也可以部署在非授权频谱。这个接入点AP可以灵活的部署在家庭、企业等场所，为小部分用户提供服务。这个接入点AP服务的用户较少，而且可能比较固定。Now consider introducing a new wireless communication system. Terminals can access the Internet through Access Points (APs), and Long Term Evolution (Long Term Evolution) is used between User Equipment (UEs) and APs. Evolution, LTE for short) or New Radio (New Radio, NR for short) wireless technology, the access point AP can integrate some core network functions, and can be deployed in licensed or unlicensed spectrum. This access point AP can be flexibly deployed in places such as homes and enterprises to provide services for a small number of users. This access point AP serves fewer users and may be more stationary.
当接入点AP在非授权频谱部署，接入点AP和UE均需要采用对话前监听或先听后说(Listen before Talk，LBT)侦测到信道空闲时，才能传输信令和数据。为了实现大数据量的传输，可以采用载波聚合的机制，为UE配置多个服务载波。当UE采用载波聚合时，UE有主载波(Primary Carrier Component，简称PCC)对应的主小区(Primary Cell，简称PCell)和一个或多个辅载波(Secondary Carrier Component，简称SCC)对应的辅小区(Secondary Cell，简称SCell)，对于上行传输的分组数据汇聚协议(Packet Data Convergence  Protocol，简称PDCP)数据包，UE可以通过PCell进行传输，也可以通过SCell进行传输。但是一旦将某个数据包交个一个载波传输之后，如果传输不成功，UE需要进行重传，而重传只能通过当前的载波进行，如果之后UE一段时间内不能获得这个载波信道的使用权，这个数据包就一直处于待传输状态，不能由其他载波进行传输，这可能导致数据包传输的时延较大。When the access point AP is deployed in the unlicensed spectrum, both the access point AP and the UE need to use listen before conversation or listen before talk (LBT) to detect that the channel is idle before transmitting signaling and data. In order to realize the transmission of a large amount of data, the mechanism of carrier aggregation can be used to configure multiple serving carriers for the UE. When the UE adopts carrier aggregation, the UE has a primary cell (Primary Cell, PCell for short) corresponding to a primary carrier (Primary Carrier Component, PCC for short) and one or more secondary carriers (Secondary Carrier Component, referred to as SCC) corresponding secondary cells ( Secondary Cell, referred to as SCell), for uplink transmission of Packet Data Convergence Protocol (PDCP) data packets, the UE can transmit through PCell or through SCell. However, once a data packet is sent to one carrier for transmission, if the transmission is unsuccessful, the UE needs to retransmit, and the retransmission can only be performed through the current carrier. If the UE cannot obtain the right to use this carrier channel for a period of time after that , the data packet is always in the state of waiting for transmission and cannot be transmitted by other carriers, which may cause a large delay in the transmission of the data packet.
也即，当前载波聚合中，未成功传输的数据包只能由原载波进行传输，若持续获得不了原载波的信道使用权，则会导致传输时延较大。That is, in the current carrier aggregation, the data packets that are not successfully transmitted can only be transmitted by the original carrier, and if the channel use right of the original carrier cannot be continuously obtained, it will cause a large transmission delay.
发明内容SUMMARY OF THE INVENTION
本发明解决的技术问题是如何解决在当前载波聚合中，由于持续获得不了原载波的信道使用权，导致数据传输的时延的问题。The technical problem solved by the present invention is how to solve the problem of data transmission time delay due to the continuous inability to obtain the channel use right of the original carrier in the current carrier aggregation.
为解决上述问题，本发明实施例提供了一种多载波数据传输方法，所述方法包括：接收网络侧发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；通过目标载波与所述网络侧进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。To solve the above problem, an embodiment of the present invention provides a multi-carrier data transmission method, the method includes: receiving configuration information sent by the network side, and determining multiple carriers sharing the HARQ process according to the configuration information; Perform HARQ retransmission with the network side, and the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
可选的，共享的HARQ进程占据的缓存大于非共享的HARQ进程占据的缓存。Optionally, the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
可选的，各个载波通过不同的比特数指示HARQ进程标识。Optionally, each carrier indicates the HARQ process identifier through a different number of bits.
可选的，所述共享的HARQ进程的数量小于等于所述多个载波的所有HARQ进程的数量。Optionally, the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
可选的，通过RRC信令发送所述配置信息。Optionally, the configuration information is sent through RRC signaling.
可选的，所述通过目标载波与所述网络侧进行HARQ重传之前，还包括：使用共享的HARQ进程通过所述原载波与所述网络侧进行数据传输；所述通过目标载波与所述网络侧进行HARQ重传，包括：当数据传输不成功时，接收所述网络侧的调度指令，所述调度指令用 于指示进行HARQ重传的一个或多个载波，所述一个或多个载波包括所述原载波和/或与所述原载波共享HARQ进程的其他载波；从所述一个或多个载波中确定所述目标载波，使用所述共享的HARQ进程通过所述目标载波与所述网络侧进行HARQ重传。Optionally, before performing HARQ retransmission with the network side through the target carrier, the method further includes: using a shared HARQ process to perform data transmission with the network side through the original carrier; Performing HARQ retransmission on the network side includes: when data transmission is unsuccessful, receiving a scheduling instruction from the network side, where the scheduling instruction is used to instruct one or more carriers to perform HARQ retransmission, the one or more carriers including the original carrier and/or other carriers that share the HARQ process with the original carrier; determining the target carrier from the one or more carriers, and using the shared HARQ process to communicate with the target carrier through the target carrier The network side performs HARQ retransmission.
可选的，所述调度指令包括所述原载波的下行控制指令和/或所述目标载波的下行控制指令。Optionally, the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
可选的，所述方法还包括：在所述一个或多个载波中，将优先获得信道使用权的载波作为所述目标载波。Optionally, the method further includes: among the one or more carriers, using the carrier that obtains the channel use right preferentially as the target carrier.
可选的，所述方法还包括：在所述一个或多个载波中，若同时获取若干个载波的信道使用权，选择信道质量最好的载波作为所述目标载波。Optionally, the method further includes: in the one or more carriers, if the channel use rights of several carriers are acquired at the same time, selecting the carrier with the best channel quality as the target carrier.
可选的，所述共享的HARQ进程用于传输低时延的数据，所述方法还包括：接收所述网络侧配置低时延的逻辑信道与共享HARQ进程的映射关系，所述低时延的逻辑信道用于传输所述低时延的数据；通过所述共享的HARQ进程与所述网络侧传输所述低时延的逻辑信道的数据。Optionally, the shared HARQ process is used to transmit low-latency data, and the method further includes: receiving a mapping relationship between the low-latency logical channel configured on the network side and the shared HARQ process, the low-latency The logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the network side through the shared HARQ process.
可选的，所述网络侧的设备工作的频段部署在非授权频谱。Optionally, the frequency band in which the device on the network side works is deployed in an unlicensed spectrum.
可选的，所述方法还包括：通过共享HARQ进程的多个载波上同时与网络侧进行数据传输。Optionally, the method further includes: simultaneously performing data transmission with the network side on multiple carriers sharing the HARQ process.
本发明实施例还提供一种多载波数据传输方法，所述方法包括：向UE发送配置信息，以使所述UE根据所述配置信息确定共享HARQ进程的多个载波；通过目标载波与所述UE进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。An embodiment of the present invention further provides a multi-carrier data transmission method, the method includes: sending configuration information to a UE, so that the UE determines a plurality of carriers sharing a HARQ process according to the configuration information; The UE performs HARQ retransmission, and the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
可选的，共享的HARQ进程占据的缓存大于非共享的HARQ进程占据的缓存。Optionally, the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
可选的，各个载波通过不同的比特数指示HARQ进程标识。Optionally, each carrier indicates the HARQ process identifier through a different number of bits.
可选的，所述共享的HARQ进程的数量小于等于所述多个载波的所有HARQ进程的数量。Optionally, the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
可选的，所述向UE发送配置信息，包括：通过RRC信令向所述UE发送所述配置信息。Optionally, the sending the configuration information to the UE includes: sending the configuration information to the UE through RRC signaling.
可选的，所述通过目标载波与所述UE进行HARQ重传之前，还包括：使用共享的HARQ进程通过所述原载波与所述UE进行数据传输；所述通过目标载波与所述UE进行HARQ重传，包括：当数据传输不成功时，向所述UE发送调度指令，以使所述UE确定所述目标载波；使用所述共享的HARQ进程通过所述目标载波与所述UE进行HARQ重传；其中，所述调度指令用于指示进行HARQ重传的一个或多个载波，所述一个或多个载波包括所述原载波和/或与所述原载波共享HARQ进程的其他载波。Optionally, before performing HARQ retransmission with the UE through the target carrier, further comprising: using a shared HARQ process to perform data transmission with the UE through the original carrier; performing data transmission with the UE through the target carrier HARQ retransmission includes: when data transmission is unsuccessful, sending a scheduling instruction to the UE, so that the UE determines the target carrier; using the shared HARQ process to perform HARQ with the UE through the target carrier Retransmission; wherein the scheduling instruction is used to indicate one or more carriers for HARQ retransmission, and the one or more carriers include the original carrier and/or other carriers that share the HARQ process with the original carrier.
可选的，所述调度指令包括所述原载波的下行控制指令和/或所述目标载波的下行控制指令。Optionally, the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
可选的，所述共享的HARQ进程用于传输低时延的数据，所述方法还包括：向所述UE发送配置低时延的逻辑信道与共享HARQ进程的映射关系，所述低时延的逻辑信道用于传输所述低时延的数据；通过所述共享的HARQ进程与所述UE传输所述低时延的逻辑信道的数据。Optionally, the shared HARQ process is used to transmit low-latency data, and the method further includes: sending to the UE a mapping relationship between the low-latency-configured logical channel and the shared HARQ process, the low-latency The logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the UE through the shared HARQ process.
可选的，执行所述方法的网络侧的设备工作的频段部署在非授权频谱。Optionally, the frequency band in which the device on the network side performing the method works is deployed in an unlicensed spectrum.
可选的，所述方法还包括：通过共享HARQ进程的多个载波上同时与所述UE进行数据传输。Optionally, the method further includes: simultaneously performing data transmission with the UE on multiple carriers sharing the HARQ process.
本发明实施例还提供一种多载波数据传输装置，所述装置包括：配置信息接收模块，用于接收AP发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；第一重传模块，用于通过目 标载波与所述网络侧进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。An embodiment of the present invention further provides a multi-carrier data transmission device, the device includes: a configuration information receiving module, configured to receive configuration information sent by an AP, and determine a plurality of carriers sharing a HARQ process according to the configuration information; first A retransmission module, configured to perform HARQ retransmission with the network side through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
本发明实施例还提供一种多载波数据传输装置，所述装置包括：配置信息发送模块，用于向UE发送配置信息，以使所述UE根据所述配置信息确定共享HARQ进程的多个载波；第二重传模块，用于通过目标载波与所述UE进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。An embodiment of the present invention further provides a multi-carrier data transmission apparatus, the apparatus includes: a configuration information sending module, configured to send configuration information to a UE, so that the UE determines a plurality of carriers sharing a HARQ process according to the configuration information ; a second retransmission module, configured to perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or other carriers that share the HARQ process with the original carrier.
本发明实施例还提供一种存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行任一项所述方法的步骤。An embodiment of the present invention further provides a storage medium, on which a computer program is stored, and when the computer program is run by a processor, the steps of any one of the methods are executed.
本发明实施例还提供一种终端，包括上述的多载波数据传输装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行任一项所述方法的步骤。An embodiment of the present invention further provides a terminal, including the above-mentioned multi-carrier data transmission device, or including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs The computer program executes the steps of any one of the methods.
本发明实施例还提供一种基站，包括上述的多载波数据传输装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行任一项所述方法的步骤。An embodiment of the present invention further provides a base station, including the above-mentioned multi-carrier data transmission apparatus, or, including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs The computer program executes the steps of any one of the methods.
本发明实施例还提供一种AP，包括上述的多载波数据传输装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行任一项所述方法的步骤。Embodiments of the present invention further provide an AP, including the above-mentioned multi-carrier data transmission apparatus, or, including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs The computer program executes the steps of any one of the methods.
与现有技术相比，本发明实施例的技术方案具有以下有益效果：Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:
本发明实施例提供一种多载波数据传输方法，所述方法包括：接收网络侧发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；通过目标载波与所述网络侧进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。较之现有技术，通过该方案，未成功传输的数据包可以由 原载波传输，也可以由与原载波共享HARQ进程的其他载波传输，在持续获得不了原载波的信道使用权时，也能够通过其他载波成功传输数据，解决了现有技术方案中的时延问题。An embodiment of the present invention provides a multi-carrier data transmission method, the method includes: receiving configuration information sent by a network side, and determining a plurality of carriers sharing a HARQ process according to the configuration information; and communicating with the network side through a target carrier For HARQ retransmission, the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier. Compared with the prior art, through this solution, the data packets that have not been successfully transmitted can be transmitted by the original carrier or other carriers that share the HARQ process with the original carrier. Other carriers successfully transmit data, which solves the delay problem in the prior art solution.
进一步地，在长时间无法获得原载波的获得信道使用权时，能够实现数据的跨载波的HARQ重传，以避免较大的传输时延。Further, when the channel use right of the original carrier cannot be obtained for a long time, cross-carrier HARQ retransmission of data can be implemented to avoid large transmission delay.
进一步地，对于多个载波共享HARQ进程时，UE可同时对多个载波探测，使用先获取信道使用权的载波重传，以减少传输时延；选择信道质量好的载波重传，提高传输成功的概率。Further, when multiple carriers share the HARQ process, the UE can detect multiple carriers at the same time, and retransmit the carrier with the right to use the channel first to reduce the transmission delay; select the carrier with good channel quality for retransmission to improve the transmission success. The probability.
进一步地，对于共享HARQ进程的场景，UE可通过共享HARQ进程的多个载波上同时与网络侧进行数据传输，从而提供了一种新的重复(duplication)的机制。接收数据的一侧可以对该多个载波上的接收数据进行联合检测，以判断数据传输是否准确，并提升检测的效果。Further, for the scenario of sharing the HARQ process, the UE can simultaneously perform data transmission with the network side on multiple carriers sharing the HARQ process, thereby providing a new duplication mechanism. The side that receives the data can jointly detect the received data on the multiple carriers to determine whether the data transmission is accurate and improve the detection effect.
附图说明Description of drawings
图1为本发明实施例中的一种的多载波数据传输方法的流程示意图；1 is a schematic flowchart of a multi-carrier data transmission method according to an embodiment of the present invention;
图2为本发明实施例中的一种的多载波数据传输方法的部分流程示意图；FIG. 2 is a schematic partial flowchart of a multi-carrier data transmission method according to an embodiment of the present invention;
图3为本发明实施例中的另一种的多载波数据传输方法的流程示意图；3 is a schematic flowchart of another multi-carrier data transmission method in an embodiment of the present invention;
图4为本发明实施例中的另一种的多载波数据传输方法的部分流程示意图；4 is a schematic partial flowchart of another multi-carrier data transmission method in an embodiment of the present invention;
图5为本发明实施例中的一种的多载波数据传输装置的结构示意图；5 is a schematic structural diagram of a multi-carrier data transmission apparatus according to an embodiment of the present invention;
图6为本发明实施例中的另一种的多载波数据传输装置的结构示意图。FIG. 6 is a schematic structural diagram of another multi-carrier data transmission apparatus in an embodiment of the present invention.
具体实施方式Detailed ways
如背景技术所言，当前载波聚合中，一个未成功传输的数据包只能由原载波进行传输，在持续获得不了信道使用权时，导致传输时延较大。As mentioned in the background art, in the current carrier aggregation, a data packet that is not successfully transmitted can only be transmitted by the original carrier, and when the channel use right cannot be continuously obtained, a large transmission delay is caused.
为解决该问题，本发明实施例提供了一种多载波数据传输方法，所述方法包括：接收网络侧发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；通过目标载波与所述网络侧进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。To solve this problem, an embodiment of the present invention provides a multi-carrier data transmission method, the method includes: receiving configuration information sent by the network side, and determining multiple carriers sharing the HARQ process according to the configuration information; Perform HARQ retransmission with the network side, and the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
由此，在持续获得不了原载波的信道使用权时，也能够通过其他载波成功传输数据，解决了现有技术方案中的时延问题。Therefore, when the channel use right of the original carrier cannot be continuously obtained, data can also be successfully transmitted through other carriers, which solves the delay problem in the prior art solution.
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。In order to make the above objects, features and beneficial effects of the present invention more clearly understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
请参见图1，图1为本发明实施例的一种多载波数据传输方法的流程示意图，该方法具体包括以下步骤：Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a multi-carrier data transmission method according to an embodiment of the present invention. The method specifically includes the following steps:
步骤S101，接收网络侧发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；Step S101, receiving configuration information sent by the network side, and determining multiple carriers sharing the HARQ process according to the configuration information;
其中，网络侧也即网络侧设备，可以为基站(eNB/gNB)或者接入点(Acess Point，简称AP)。The network side, that is, the network side device, may be a base station (eNB/gNB) or an access point (Acess Point, AP for short).
配置信息为网络侧向终端(也可称为终端设备或用户设备(User Equipment，简称UE))发送的信息，该配置信息用于指示两个或两个以上的载波共享HARQ进程。共享HARQ进程的两个或两个以上的载波均可以调度共享的HARQ进程。可选的，配置信息还可以指示两个或两个以上的载波共享的HARQ进程的标识，以使得UE确定哪几个载波共享HARQ进程，以及共享的HARQ进程为哪一个或者哪几个HARQ进程。The configuration information is information sent by the network side to the terminal (also referred to as terminal equipment or user equipment (User Equipment, UE for short)), and the configuration information is used to indicate that two or more carriers share the HARQ process. Two or more carriers sharing a HARQ process can schedule the shared HARQ process. Optionally, the configuration information may also indicate the identifier of the HARQ process shared by two or more carriers, so that the UE can determine which carriers share the HARQ process, and which one or several HARQ processes are the shared HARQ process. .
可选的，所述共享的HARQ进程的数量小于等于所述多个载波的所有进程数量。也即，可以将多个载波的所有HARQ进程配置为共享的HARQ进程，或者将多个载波的所有HARQ进程中的部分配置为共享的HARQ进程。Optionally, the number of the shared HARQ processes is less than or equal to the number of all processes of the multiple carriers. That is, all HARQ processes of multiple carriers may be configured as shared HARQ processes, or a part of all HARQ processes of multiple carriers may be configured as shared HARQ processes.
例如，AP管理了4个不同频点的服务小区，记作PCell和SCell1、Scell2、Scell3。AP可以仅在一个载波上广播***消息等以便UE可以驻留，当UE有业务需求建立RRC连接，进入连接态之后，AP可以为终端配置载波聚合，此时终端配置了PCell和SCell1、Scell2、Scell3。终端也建立了信令无线承载和数据无线承载，AP通过配置信息配置UE的PCell和SCell1为共享HARQ process的两个载波，PCell和SCell1的共享HARQ进程的数量为16个，共享HARQ进程的标识(Identify，简称ID)为0～15。For example, the AP manages four serving cells with different frequencies, which are denoted as PCell and SCell1, Scell2, and Scell3. The AP can broadcast system messages on only one carrier so that the UE can camp on it. When the UE has service requirements to establish an RRC connection and enters the connected state, the AP can configure carrier aggregation for the terminal. At this time, the terminal is configured with PCell and SCell1, Scell2, Scell3. The terminal also establishes a signaling radio bearer and a data radio bearer. The AP configures the UE's PCell and SCell1 as two carriers that share the HARQ process through configuration information. The number of shared HARQ processes of PCell and SCell1 is 16, and the identifier of the shared HARQ process (Identify, ID for short) ranges from 0 to 15.
步骤S102，通过目标载波与所述UE进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。Step S102 , perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
其中，传输数据的原载波为前一次的数据传输。以上行传输为例，对于传输的同一数据包而言，若UE将其交给一个载波进行传输之后，如果本次传输不成功，UE需要进行重传。此时，本次传输使用的载波记作传输数据的原载波。进行重传的载波记作目标载波，目标载波可以为原载波、也可以为与原载波共享HARQ进程的其他载波。Wherein, the original carrier for transmitting data is the previous data transmission. Taking uplink transmission as an example, for the same data packet transmitted, if the UE hands it to a carrier for transmission, if the current transmission is unsuccessful, the UE needs to retransmit. At this time, the carrier used for this transmission is denoted as the original carrier of the transmission data. The carrier for retransmission is denoted as the target carrier, and the target carrier may be the original carrier or another carrier that shares the HARQ process with the original carrier.
传统方案中，只能通过原载波重传，本发明实施例中，由于两个或两个以上的载波均可以调用共享的HARQ进程，若原载波调用共享的HARQ进程进行本次传输，重传时，可以由原载波调用该共享的HARQ进程重传，也可以由其他可以调用该共享的HARQ进程的载波进行重传。In the traditional solution, only the original carrier can be used for retransmission. In the embodiment of the present invention, since two or more carriers can call the shared HARQ process, if the original carrier calls the shared HARQ process for this transmission, the retransmission , the original carrier can call the shared HARQ process for retransmission, or it can be retransmitted by other carriers that can call the shared HARQ process.
可选的，通过无线资源控制(Radio Resource Control，简称RRC)信令发送所述配置信息。Optionally, the configuration information is sent through radio resource control (Radio Resource Control, RRC for short) signaling.
可选的，所述网络侧工作的频段部署在非授权频谱。Optionally, the frequency band working on the network side is deployed in an unlicensed spectrum.
通常地，AP在家庭或公司提供无线服务，部署在非授权频谱，采用载波聚合的机制为终端提供服务。Generally, APs provide wireless services in homes or companies, are deployed in unlicensed spectrum, and use carrier aggregation to provide services for terminals.
图1所述的方法由终端，也称终端设备或用户设备(User Equipment，简称UE)执行。通过该方案，未成功传输的数据包可以由原载波传输，也可以由与原载波共享HARQ进程的其他载波传输，在持续获得不了原载波的信道使用权时，也能够通过其他载波成功传输数据，解决了现有技术方案中的时延问题。The method shown in FIG. 1 is performed by a terminal, also called terminal equipment or user equipment (User Equipment, UE for short). Through this solution, the unsuccessfully transmitted data packets can be transmitted by the original carrier or other carriers that share the HARQ process with the original carrier. When the channel use right of the original carrier cannot be continuously obtained, the data can also be successfully transmitted through other carriers. The time delay problem in the prior art solution is solved.
在一个实施例中，共享的HARQ进程占据的缓存大于非共享的HARQ进程占据的缓存。In one embodiment, the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
其中，共享的HARQ进程为超过一个载波可调用的HARQ进程。非共享的HARQ进程为仅单个载波可调用的HARQ进程。The shared HARQ process is an HARQ process that can be invoked by more than one carrier. A non-shared HARQ process is a HARQ process that can only be invoked by a single carrier.
当两个或两个以上的载波共享HARQ进程时，该共享的HARQ进程所占据的缓存(或缓存空间，Buffer)相较于非共享的HARQ进程所占据的缓存空间更大。可选的，当N个载波共享某一HARQ进程，该共享的HARQ进程所占据的缓存可以是非共享的HARQ进程的N倍，其中N为大于等于2的自然数。When two or more carriers share the HARQ process, the buffer (or buffer space, Buffer) occupied by the shared HARQ process is larger than the buffer space occupied by the non-shared HARQ process. Optionally, when N carriers share a certain HARQ process, the buffer occupied by the shared HARQ process may be N times that of the non-shared HARQ process, where N is a natural number greater than or equal to 2.
如，所有16个HARQ进程占据的Buffer为1G比特，若该16个HARQ进程均为非共享的HARQ进程，每一个HARQ进程占据的Buffer为1/16G比特。若该16个HARQ进程均为两个载波共享的HARQ进程，将总Buffer调整为2G比特，每一个HARQ进程占据的Buffer为2/16G比特。For example, the Buffer occupied by all 16 HARQ processes is 1G bits. If the 16 HARQ processes are all non-shared HARQ processes, the Buffer occupied by each HARQ process is 1/16G bits. If the 16 HARQ processes are HARQ processes shared by two carriers, the total Buffer is adjusted to 2G bits, and the Buffer occupied by each HARQ process is 2/16G bits.
若仅调整HARQ进程占据的Buffer，对于上行调度，可以沿用现有下行控制信令中HARQ Process ID的比特数(现有为4个比特)指示HARQ进程。If only the Buffer occupied by the HARQ process is adjusted, for uplink scheduling, the number of bits of the HARQ Process ID in the existing downlink control signaling (currently 4 bits) can be used to indicate the HARQ process.
在一个实施例中，各个载波通过不同的比特数指示HARQ进程标识(HARQ Process ID)。In one embodiment, each carrier indicates a HARQ process ID (HARQ Process ID) through a different number of bits.
可选的，当N个载波共享M个HARQ进程时，该M个HARQ进程中，每一共享HARQ进程可以对应N个进程ID，以供N个载波分别调用。如，当两个载波共享8个HARQ进程，此时HARQ进程ID为24个，第一个载波可以调度HARQ Process ID 0～15；第二个载波可以调度HARQ process ID 8～23，其中HARQ process ID 8～15为共享HARQ process。此时对于第一个载波可以沿用原有的HARQ process ID 4比特可以指示HARQ Process ID 0～15，对于第二个载波，需要增加一比特用于指示增加的HARQ process，即需要5比特指示HARQ process ID 8～23。Optionally, when N carriers share M HARQ processes, among the M HARQ processes, each shared HARQ process may correspond to N process IDs for N carriers to call respectively. For example, when two carriers share 8 HARQ processes, the number of HARQ process IDs is 24, the first carrier can schedule HARQ process IDs 0 to 15; the second carrier can schedule HARQ process IDs 8 to 23, where HARQ process IDs 8 to 23 IDs 8 to 15 are shared HARQ processes. At this time, for the first carrier, the original HARQ process ID can be used. process IDs 8 to 23.
在一个实施例中，请参见图2，图2为本发明实施例的另一种多载波数据传输方法的部分流程图，图1中步骤S102所述通过目标载波与所述网络侧进行HARQ重传之前，还包括：步骤S201，使用共享的HARQ进程通过所述原载波与所述网络侧进行数据传输；In one embodiment, please refer to FIG. 2 , which is a partial flowchart of another multi-carrier data transmission method according to an embodiment of the present invention. In step S102 in FIG. 1 , the HARQ replay is performed with the network side through the target carrier. Before transmission, the method further includes: step S201, using a shared HARQ process to perform data transmission with the network side through the original carrier;
步骤S102所述通过目标载波与所述网络侧进行HARQ重传，包括：步骤S202，检测数据传输是否成功；当数据传输不成功时，执行步骤S203，接收所述网络侧的调度指令，所述调度指令用于指示进行HARQ重传的一个或多个载波，所述一个或多个载波包括所述原载波和/或与所述原载波共享HARQ进程的其他载波；步骤S204，从所述一个或多个载波中确定所述目标载波，使用所述共享的HARQ进程通过所述目标载波与所述网络侧进行HARQ重传。可选的，当数据传输成功时，本次数据传输结束。The performing HARQ retransmission with the network side through the target carrier in step S102 includes: step S202, detecting whether the data transmission is successful; when the data transmission is unsuccessful, executing step S203, receiving a scheduling instruction from the network side, the The scheduling instruction is used to indicate one or more carriers for HARQ retransmission, and the one or more carriers include the original carrier and/or other carriers that share the HARQ process with the original carrier; step S204, from the one or more carriers The target carrier is determined from one or more carriers, and the shared HARQ process is used to perform HARQ retransmission with the network side through the target carrier. Optionally, when the data transmission is successful, the current data transmission ends.
对于一次传输而言，UE通过原载波调用共享的HARQ进程与网络侧进行数据传输时，若该次传输不成功，若UE能够获取原载波的信道使用权，则AP调度原载波进行数据重传。若该次传输不成功，且UE在一段时间内持续获得不了原载波的信道使用权，AP调度与原载波共享HARQ进程的其他载波进行数据重传。For a transmission, when the UE invokes the shared HARQ process on the original carrier for data transmission with the network side, if the transmission is unsuccessful, if the UE can obtain the channel use right of the original carrier, the AP schedules the original carrier for data retransmission . If the transmission is unsuccessful, and the UE cannot obtain the channel use right of the original carrier for a period of time, the AP schedules other carriers that share the HARQ process with the original carrier to perform data retransmission.
可选的，所述调度指令包括所述原载波的下行控制指令和/或所述目标载波的下行控制指令。此处原载波的下行控制信令是指通过原 载波向UE发送下行控制信令。Optionally, the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier. Here, the downlink control signaling of the original carrier refers to sending downlink control signaling to the UE through the original carrier.
如上例，AP通过配置信息配置UE的PCell和SCell1为共享HARQ process的两个载波，当AP在PCell上调度UE进行上行(UpLink，简称UL)传输时，UE在获得信道的使用权之后，依据可以传输的数据量大小，选择或截取相应长度的数据，通过UL PCell进行传输，假定此时UE通过HARQ process 1进行数据的首传，传输的数据保存在HARQ process 1的Buffer中。其中，HARQ process 1为共享的HARQ进程。UE在使用PCell进行本次传输之后，接收AP通过下行控制信令发送的反馈信息，当本次传输不成功时，AP可以调度UE进行重传，但是之后UE在UL PCell上持续获得不了信道使用权，导致上行传输不成功。因为UE应用了共享的HARQ进程，AP可以通过PCell上的下行控制信令、或者SCell1上的下行控制信令调度UE在SCell1进行重传，终端在SCell1上执行LBT，如果成功获得信道使用权，可以通过SCell1将HARQ process 1中Buffer的数据再次传输给AP。之后，UE接收接入点AP发送的反馈，如果传输成功，UE可以清空HARQ process 1；如果传输还是不成功，在没有达到最大重传次数之前，UE可以等待AP的上行调度，再次通过PCell或者SCell1将未成功传输的数据包再次重传。As shown in the above example, the AP configures the UE's PCell and SCell1 as two carriers sharing the HARQ process through configuration information. When the AP schedules the UE to perform uplink (UpLink, UL) transmission on the PCell, the UE obtains the right to use the channel, according to The amount of data that can be transmitted, select or intercept the data of the corresponding length, and transmit it through the UL PCell. It is assumed that the UE performs the first transmission of the data through the HARQ process 1 at this time, and the transmitted data is stored in the Buffer of the HARQ process 1. Among them, HARQ process 1 is a shared HARQ process. After the UE uses the PCell for this transmission, it receives the feedback information sent by the AP through the downlink control signaling. When the transmission is unsuccessful, the AP can schedule the UE to retransmit, but then the UE continues to be unable to obtain channel usage on the UL PCell. right, resulting in unsuccessful uplink transmission. Because the UE applies the shared HARQ process, the AP can schedule the UE to perform retransmission on SCell1 through downlink control signaling on PCell or downlink control signaling on SCell1, and the terminal performs LBT on SCell1. If the channel usage right is successfully obtained, The data in the Buffer in HARQ process 1 can be retransmitted to the AP through SCell1. After that, the UE receives the feedback sent by the access point AP. If the transmission is successful, the UE can clear the HARQ process 1; if the transmission is still unsuccessful, before the maximum number of retransmissions is reached, the UE can wait for the uplink scheduling of the AP, and pass PCell or PCell again. SCell1 retransmits the unsuccessfully transmitted packets again.
下行传输的载波调度方式与上行传输相似，这里不作详细描述。通过上述方法，在长时间无法获得原载波的获得信道使用权时，能够实现数据的跨载波的HARQ重传，以避免较大的传输时延。The carrier scheduling method of downlink transmission is similar to that of uplink transmission, and will not be described in detail here. Through the above method, when the acquisition channel use right of the original carrier cannot be obtained for a long time, cross-carrier HARQ retransmission of data can be implemented to avoid large transmission delay.
在一个实施例中，所述方法还包括：在所述一个或多个载波中，将优先获得信道使用权的载波作为所述目标载波。In one embodiment, the method further includes: among the one or more carriers, using the carrier that obtains the channel use right preferentially as the target carrier.
可选的，所述方法还包括：在所述一个或多个载波中，若同时获取若干个载波的信道使用权，选择信道质量最好的载波作为所述目标载波。Optionally, the method further includes: in the one or more carriers, if the channel use rights of several carriers are acquired at the same time, selecting the carrier with the best channel quality as the target carrier.
当网络侧通过调度指令指示了在多个载波分配的上行授权时，UE在该多个载波上同时探测，将优先获得信道使用权的载波作为目 标载波。信道质量最好的载波即为同时获取若干个载波的信道使用权中信道质量最好的载波。When the network side indicates the uplink grant allocated on multiple carriers through the scheduling instruction, the UE simultaneously probes on the multiple carriers, and takes the carrier for which the channel usage right is preferentially obtained as the target carrier. The carrier with the best channel quality is the carrier with the best channel quality among the channel use rights obtained simultaneously for several carriers.
本实施例中，对于多个载波共享HARQ进程时，UE可同时对多个载波探测，使用先获取信道使用权的载波重传，以减少传输时延；选择信道质量好的载波重传，提高传输成功的概率。In this embodiment, when multiple carriers share the HARQ process, the UE can detect multiple carriers at the same time, and retransmit using the carrier for which the channel usage right is obtained first, so as to reduce the transmission delay; The probability of successful transmission.
在一个实施例中，所述共享的HARQ进程用于传输低时延的数据，所述方法还包括：接收所述网络侧配置低时延的逻辑信道与共享HARQ进程的映射关系，所述低时延的逻辑信道用于传输所述低时延的数据；通过所述共享的HARQ进程与所述网络侧传输所述低时延的逻辑信道的数据。In an embodiment, the shared HARQ process is used to transmit low-latency data, and the method further includes: receiving a mapping relationship between a logical channel configured on the network side with low-latency and the shared HARQ process, the low-latency logical channel The delayed logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the network side through the shared HARQ process.
低时延的数据为对实时性要求较高的数据，可以由网络侧配置。可选的，低时延的数据为对时延数值要求低的预设业务的数据。相对的，非共享的HARQ进程，用于传输一般业务的数据。Low-latency data is data that requires high real-time performance and can be configured on the network side. Optionally, the low-latency data is data of a preset service that requires low latency values. In contrast, the non-shared HARQ process is used to transmit data of general services.
由网络侧配置低时延的逻辑信道与共享HARQ进程的映射关系，UE收到该映射关系之后，通过共享的HARQ进程传输配置了映射关系的逻辑信道的数据。The network side configures the mapping relationship between the low-latency logical channel and the shared HARQ process. After receiving the mapping relationship, the UE transmits the data of the logical channel configured with the mapping relationship through the shared HARQ process.
在一个实施例中，所述方法还包括：通过共享HARQ进程的多个载波上同时与网络侧进行数据传输。In one embodiment, the method further includes: simultaneously performing data transmission with the network side on multiple carriers sharing the HARQ process.
对应地，接收数据的一侧可以对该多个载波上的接收数据进行联合检测，以判定接收数据是否准确。在上行传输时，接收数据的一侧为网络侧；在下行传输时，接收数据的一侧为UE侧。Correspondingly, the side that receives the data may perform joint detection on the received data on the multiple carriers to determine whether the received data is accurate. In uplink transmission, the side receiving data is the network side; in downlink transmission, the side receiving data is the UE side.
对于共享HARQ process的场景，基站可以调度UE同时在两个载波进行上行传输相同的TB(Transport Block)，提供新的一种重复(duplication)的机制。可选的，在数据初传或者重传时，基站可以调度UE同时在多个共享HARQ进程的载波传输相同的TB。For the scenario of sharing the HARQ process, the base station can schedule the UE to transmit the same TB (Transport Block) on two carriers simultaneously, providing a new duplication mechanism. Optionally, during initial transmission or retransmission of data, the base station may schedule the UE to transmit the same TB simultaneously on multiple carriers sharing the HARQ process.
进一步，基站可以通过一个下行控制信令调度UE同时在两个载波上进行上行传输，因为基站提前通过RRC信令配置共享HARQ进 程的载波，基站在同时配置了重复(duplication)之后，UE就在共享HARQ进程对应的载波上发送相同的TB，此时下行控制信令中不需要指示上行载波信息，可以充分利用现有的下行信令格式，不需要改动。对于基站来说，可以对两个载波上的接收数据实施联合检测，提升检测的效果。Further, the base station can schedule the UE to perform uplink transmission on two carriers at the same time through a downlink control signaling, because the base station configures the carrier sharing the HARQ process through RRC signaling in advance, and after the base station configures the duplication at the same time, the UE is The same TB is sent on the carrier corresponding to the shared HARQ process. In this case, the uplink carrier information does not need to be indicated in the downlink control signaling, and the existing downlink signaling format can be fully utilized without modification. For the base station, joint detection can be performed on the received data on the two carriers to improve the detection effect.
本实施例中，对于共享HARQ process的场景，UE可通过共享HARQ进程的多个载波上同时与网络侧进行数据传输，从而提供了一种新的重复(duplication)的机制。接收数据的一侧可以对该多个载波上的接收数据进行联合检测，以判断数据传输是否准确，并提升检测的效果。In this embodiment, for the scenario of sharing the HARQ process, the UE can simultaneously perform data transmission with the network side on multiple carriers sharing the HARQ process, thereby providing a new duplication mechanism. The side that receives the data can jointly detect the received data on the multiple carriers to determine whether the data transmission is accurate and improve the detection effect.
请参见图3，图3为本发明实施例的另一种多载波数据传输方法的流程示意图，所述方法包括：Please refer to FIG. 3. FIG. 3 is a schematic flowchart of another multi-carrier data transmission method according to an embodiment of the present invention. The method includes:
步骤S301，向UE发送配置信息，以使所述UE根据所述配置信息确定共享HARQ进程的多个载波；Step S301, sending configuration information to a UE, so that the UE determines a plurality of carriers sharing the HARQ process according to the configuration information;
步骤S302，通过目标载波与所述UE进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。Step S302 , perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
可选的，共享的HARQ进程占据的缓存大于非共享的HARQ进程占据的缓存。Optionally, the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
可选的，各个载波通过不同的比特数指示HARQ进程标识。Optionally, each carrier indicates the HARQ process identifier through a different number of bits.
可选的，所述共享的HARQ进程的数量小于等于所述多个载波的所有HARQ进程的数量。Optionally, the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
在一个实施例中，所述向UE发送配置信息，包括：通过RRC信令向所述UE发送所述配置信息。In an embodiment, the sending the configuration information to the UE includes: sending the configuration information to the UE through RRC signaling.
在一个实施例中，所述通过目标载波与所述UE进行HARQ重传之前，还包括：In an embodiment, before performing HARQ retransmission with the UE through the target carrier, the method further includes:
步骤S401，使用共享的HARQ进程通过所述原载波与所述UE进行数据传输；Step S401, using a shared HARQ process to perform data transmission with the UE through the original carrier;
所述通过目标载波与所述UE进行HARQ重传，包括：The performing HARQ retransmission with the UE through the target carrier includes:
步骤S402，当数据传输不成功时，向所述UE发送调度指令，以使所述UE确定所述目标载波；Step S402, when the data transmission is unsuccessful, send a scheduling instruction to the UE, so that the UE determines the target carrier;
步骤S403，使用所述共享的HARQ进程通过所述目标载波与所述UE进行HARQ重传；Step S403, using the shared HARQ process to perform HARQ retransmission with the UE through the target carrier;
其中，所述调度指令用于指示进行HARQ重传的一个或多个载波，所述一个或多个载波包括所述原载波和/或与所述原载波共享HARQ进程的其他载波。The scheduling instruction is used to indicate one or more carriers for HARQ retransmission, and the one or more carriers include the original carrier and/or other carriers that share the HARQ process with the original carrier.
可选的，所述调度指令包括所述原载波的下行控制指令和/或所述目标载波的下行控制指令。Optionally, the scheduling instruction includes a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
可选的，所述共享的HARQ进程用于传输低时延的数据，所述方法还包括：向所述UE发送配置低时延的逻辑信道与共享HARQ进程的映射关系，所述低时延的逻辑信道用于传输所述低时延的数据；通过所述共享的HARQ进程与所述UE传输所述低时延的逻辑信道的数据。Optionally, the shared HARQ process is used to transmit low-latency data, and the method further includes: sending to the UE a mapping relationship between the low-latency-configured logical channel and the shared HARQ process, the low-latency The logical channel is used to transmit the low-latency data; the data of the low-latency logical channel is transmitted with the UE through the shared HARQ process.
可选的，执行所述方法的网络侧的设备工作的频段部署在非授权频谱。Optionally, the frequency band in which the device on the network side performing the method works is deployed in an unlicensed spectrum.
可选的，所述方法还包括：通过共享HARQ进程的多个载波上同时与所述UE进行数据传输。Optionally, the method further includes: simultaneously performing data transmission with the UE on multiple carriers sharing the HARQ process.
图3和图4所述的方法由网络侧设备，如基站或AP执行。关于图3或图4所述方法的工作原理、工作方式的更多内容，可以参照上述图1和图2中关于网络侧或AP的相关描述，这里不再赘述。The methods described in FIG. 3 and FIG. 4 are performed by a network-side device, such as a base station or an AP. For more details on the working principle and working mode of the method shown in FIG. 3 or FIG. 4 , reference may be made to the relevant descriptions on the network side or the AP in the above-mentioned FIG. 1 and FIG. 2 , which will not be repeated here.
请参见图5，图5为本发明实施例的一种多载波数据传输装置的结构示意图，所述多载波数据传输装置50包括：Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a multi-carrier data transmission apparatus according to an embodiment of the present invention. The multi-carrier data transmission apparatus 50 includes:
配置信息接收模块501，用于接收AP发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；A configuration information receiving module 501, configured to receive the configuration information sent by the AP, and determine a plurality of carriers sharing the HARQ process according to the configuration information;
第一重传模块502，用于通过目标载波与所述网络侧进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。The first retransmission module 502 is configured to perform HARQ retransmission with the network side through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
关于上述多载波数据传输装置50的工作原理、工作方式的更多内容，可以参照上述图1和图2中所述方法的相关描述，这里不再赘述。For more details on the working principle and working mode of the above-mentioned multi-carrier data transmission apparatus 50, reference may be made to the relevant descriptions of the methods described in the above-mentioned FIG. 1 and FIG. 2, and details are not repeated here.
在具体实施中，上述的多载波数据传输装置50可以对应于终端中具有通信功能的芯片，或者对应于具有数据处理功能的芯片，例如片上***(System-On-a-Chip，简称SOC)、基带芯片等；或者对应于终端中包括具有通信功能芯片的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于终端。In a specific implementation, the above-mentioned multi-carrier data transmission device 50 may correspond to a chip with a communication function in the terminal, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip, SOC for short), A baseband chip, etc.; or a chip module including a chip with a communication function in the terminal; or a chip module with a data processing function chip, or a terminal.
请参见图6，图6为本发明实施例的一种多载波数据传输装置的结构示意图，所述多载波数据传输装置60包括：Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of a multi-carrier data transmission apparatus according to an embodiment of the present invention. The multi-carrier data transmission apparatus 60 includes:
配置信息发送模块601，用于向UE发送配置信息，以使所述UE根据所述配置信息确定共享HARQ进程的多个载波；A configuration information sending module 601, configured to send configuration information to a UE, so that the UE determines a plurality of carriers sharing the HARQ process according to the configuration information;
第二重传模块602，用于通过目标载波与所述UE进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。The second retransmission module 602 is configured to perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
关于上述多载波数据传输装置60的工作原理、工作方式的更多内容，可以参照上述图3和图4中所述方法的相关描述，这里不再赘述。For more details on the working principle and working mode of the above-mentioned multi-carrier data transmission apparatus 60, reference may be made to the relevant descriptions of the methods described in the above-mentioned FIG. 3 and FIG. 4, which will not be repeated here.
在具体实施中，上述的多载波数据传输装置60可以对应于基站或AP中具有通信功能的芯片，或者对应于具有数据处理功能的芯片，例如片上***(System-On-a-Chip，简称SOC)、基带芯片等；或者对应于基站或AP中包括具有通信功能芯片的芯片模组；或者对应于 具有数据处理功能芯片的芯片模组，或者对应于基站或AP。In a specific implementation, the above-mentioned multi-carrier data transmission device 60 may correspond to a chip with a communication function in a base station or an AP, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip, SOC for short) ), baseband chip, etc.; or correspond to a chip module including a communication function chip in a base station or AP; or correspond to a chip module with a data processing function chip, or correspond to a base station or AP.
在具体实施中，关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。In specific implementation, regarding each module/unit included in each device and product described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a part of a software module/unit, a part of which is a software module/unit. is a hardware module/unit.
例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。For example, for each device or product applied to or integrated in a chip, each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program. Running on the processor integrated inside the chip, the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it The units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.
本发明实施例还提供一种存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行图1至图2所述方法、或者图3至图4所述方法的步骤。所述存储介质可以是计算机可读存储介质，例如可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器，还可以包括光盘、机械硬盘、固态硬盘等。An embodiment of the present invention further provides a storage medium on which a computer program is stored, and when the computer program is run by a processor, the steps of the methods described in FIGS. 1 to 2 or the methods described in FIGS. 3 to 4 are executed. The storage medium may be a computer-readable storage medium, for example, may include non-volatile memory (non-volatile) or non-transitory (non-transitory) memory, and may also include optical disks, mechanical hard disks, solid-state disks, and the like.
本发明实施例还提供一种终端，该终端可以为UE。所述终端可以包括上述图5所述的多载波数据传输装置50。或者，所述终端可以包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行图1至图2所 述方法的步骤。An embodiment of the present invention further provides a terminal, where the terminal may be a UE. The terminal may include the multi-carrier data transmission apparatus 50 described above in FIG. 5 . Alternatively, the terminal may include a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes the method described in FIG. 1 to FIG. 2 when the processor runs the computer program. step.
本发明实施例还提供一种基站或AP。所述基站或AP可以包括上述图6所述的多载波数据传输装置60。或者，所述基站或AP可以包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行图3至图4所述方法的步骤。The embodiment of the present invention also provides a base station or an AP. The base station or AP may include the multi-carrier data transmission apparatus 60 described above in FIG. 6 . Alternatively, the base station or AP may include a memory and a processor, the memory stores a computer program that can be executed on the processor, and the processor executes the computer program described in FIG. 3 to FIG. 4 when the processor runs the computer program. steps of the method.
常用词汇的定义或说明：Definitions or descriptions of commonly used terms:
【是否适用于各代通信***】本方明技术方案可适用于5G(5Generation)通信***，还可适用于4G、3G通信***，还可适用于未来新的各种通信***，例如6G、7G等。[Whether it is applicable to various generations of communication systems] This technical solution can be applied to 5G (5Generation) communication systems, 4G and 3G communication systems, and various new communication systems in the future, such as 6G and 7G. Wait.
本发明实施例中的网络侧(network)是指为终端提供通信服务的通信网络，包含无线接入网的基站，还可以包含无线接入网的基站控制器，还可以包含核心网侧的设备。In this embodiment of the present invention, the network side refers to a communication network that provides communication services for terminals, including a base station of a wireless access network, a base station controller of a wireless access network, and a device on the core network side. .
【涉及终端的称呼】本申请实施例中的终端可以指各种形式的用户设备(user equipment，简称UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，建成MS)、远方站、远程终端、移动设备、用户终端、终端设备(terminal equipment)、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字处理(Personal Digital Assistant，简称PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等，本申请实施例对此并不限定。[Appellations related to terminals] The terminals in the embodiments of this application may refer to various forms of user equipment (user equipment, UE for short), access terminals, subscriber units, subscriber stations, mobile stations, and mobile stations (mobile stations, built as MSs) ), remote station, remote terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent or user device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices with wireless communication capabilities, terminal devices in future 5G networks or future evolved public land mobile communication networks (Public Land Mobile Network, referred to for short) PLMN), which is not limited in this embodiment of the present application.
【涉及上行、下行的定义】本申请实施例定义接入网到终端的单向通信链路为下行链路，在下行链路上传输的数据为下行数据，下行 数据的传输方向称为下行方向；而终端到接入网的单向通信链路为上行链路，在上行链路上传输的数据为上行数据，上行数据的传输方向称为上行方向。[Definition involving uplink and downlink] The embodiment of this application defines the unidirectional communication link from the access network to the terminal as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction ; And the one-way communication link from the terminal to the access network is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.
【和/或的定义】应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，表示前后关联对象是一种“或”的关系。[Definition of and/or] It should be understood that the term "and/or" in this document is only an association relationship to describe associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: exist independently A, there are both A and B, and there are three cases of B alone. In addition, the character "/" in this text indicates that the related objects are an "or" relationship.
【多个的定义】本申请实施例中出现的“多个”是指两个或两个以上。[Definition of Plurality] The "plurality" in the embodiments of the present application refers to two or more.
【第一、第二的定义】本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特别限定，不能构成对本申请实施例的任何限制。[Definition of the first and the second] The descriptions of the first, the second, etc. appearing in the embodiments of this application are only used for illustration and distinguishing the description objects, and there is no order. The specific limitation of the number cannot constitute any limitation to the embodiments of the present application.
【连接的定义】本申请实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式，以实现设备间的通信，本申请实施例对此不做任何限定。[Definition of connection] The "connection" in the embodiments of this application refers to various connection modes such as direct connection or indirect connection to realize communication between devices, which is not limited in this embodiment of the application.
【涉及处理器的称呼】应理解，本申请实施例中，所述处理器可以为中央处理单元(central processing unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，简称DSP)、专用集成电路(application specific integrated circuit，简称ASIC)、现成可编程门阵列(field programmable gate array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。[Description of the processor involved] It should be understood that, in this embodiment of the present application, the processor may be a central processing unit (CPU for short), and the processor may also be other general-purpose processors, digital signal processors ( digital signal processor, DSP for short), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
【涉及存储器的称呼】还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，简称ROM)、可编程只读存储器(programmable ROM，简称PROM)、 可擦除可编程只读存储器(erasable PROM，简称EPROM)、电可擦除可编程只读存储器(electrically EPROM，简称EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，简称RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，简称RAM)可用，例如静态随机存取存储器(static RAM，简称SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，简称SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，简称DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，简称ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，简称SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，简称DR RAM)。[Description related to memory] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memory. Among them, the non-volatile memory can be read-only memory (read-only memory, referred to as ROM), programmable read-only memory (programmable ROM, referred to as PROM), erasable programmable read-only memory (erasable PROM, referred to as EPROM) , Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM for short) or flash memory. Volatile memory may be random access memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous Dynamic random access memory (synchronous DRAM, referred to as SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, referred to as DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, referred to as ESDRAM), Synchronous connection dynamic random access memory (synchlink DRAM, referred to as SLDRAM) and direct memory bus random access memory (direct rambus RAM, referred to as DR RAM).
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，可轻易想到变化或替换，均可作各种更动与修改，包含上述不同功能、实施步骤的组合，包含软件和硬件的实施方式，均在本发明的保护范围。Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present invention, can easily think of changes or substitutions, and can make various changes and modifications, including the combination of the above-mentioned different functions and implementation steps, including the implementation of software and hardware. The methods are all within the protection scope of the present invention.

Claims (28)

  1. 一种多载波数据传输方法，其特征在于，所述方法包括：A multi-carrier data transmission method, characterized in that the method comprises:
    接收网络侧发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；receiving configuration information sent by the network side, and determining multiple carriers sharing the HARQ process according to the configuration information;
    通过目标载波与所述网络侧进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。HARQ retransmission is performed with the network side through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  2. 根据权利要求1所述的方法，其特征在于，共享的HARQ进程占据的缓存大于非共享的HARQ进程占据的缓存。The method according to claim 1, wherein the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
  3. 根据权利要求1所述的方法，其特征在于，各个载波通过不同的比特数指示HARQ进程标识。The method according to claim 1, wherein each carrier indicates the HARQ process identifier through a different number of bits.
  4. 根据权利要求1所述的方法，其特征在于，所述共享的HARQ进程的数量小于等于所述多个载波的所有HARQ进程的数量。The method according to claim 1, wherein the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
  5. 根据权利要求1至4任一所述的方法，其特征在于，通过RRC信令发送所述配置信息。The method according to any one of claims 1 to 4, wherein the configuration information is sent through RRC signaling.
  6. 根据权利要求1所述的方法，其特征在于，所述通过目标载波与所述网络侧进行HARQ重传之前，还包括：The method according to claim 1, wherein before performing HARQ retransmission with the network side through the target carrier, the method further comprises:
    使用共享的HARQ进程通过所述原载波与所述网络侧进行数据传输；using the shared HARQ process to perform data transmission with the network side through the original carrier;
    所述通过目标载波与所述网络侧进行HARQ重传，包括：The performing HARQ retransmission with the network side through the target carrier includes:
    当数据传输不成功时，接收所述网络侧的调度指令，所述调度指令用于指示进行HARQ重传的一个或多个载波，所述一个或多个载波包括所述原载波和/或与所述原载波共享HARQ进程的其他载波；When data transmission is unsuccessful, a scheduling instruction from the network side is received, where the scheduling instruction is used to instruct one or more carriers to perform HARQ retransmission, and the one or more carriers include the original carrier and/or the the original carrier shares other carriers of the HARQ process;
    从所述一个或多个载波中确定所述目标载波，使用所述共享的HARQ进程通过所述目标载波与所述网络侧进行HARQ重传。The target carrier is determined from the one or more carriers, and the shared HARQ process is used to perform HARQ retransmission with the network side through the target carrier.
  7. 根据权利要求6所述的方法，其特征在于，所述调度指令包括所述原载波的下行控制指令和/或所述目标载波的下行控制指令。The method according to claim 6, wherein the scheduling instruction comprises a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
  8. 根据权利要求6所述的方法，其特征在于，所述方法还包括：The method according to claim 6, wherein the method further comprises:
    在所述一个或多个载波中，将优先获得信道使用权的载波作为所述目标载波。Among the one or more carriers, the carrier for which the channel use right is obtained preferentially is used as the target carrier.
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：The method according to claim 8, wherein the method further comprises:
    在所述一个或多个载波中，若同时获取若干个载波的信道使用权，选择信道质量最好的载波作为所述目标载波。Among the one or more carriers, if the channel use rights of several carriers are acquired at the same time, the carrier with the best channel quality is selected as the target carrier.
  10. 根据权利要求1所述的方法，其特征在于，所述共享的HARQ进程用于传输低时延的数据，所述方法还包括：The method according to claim 1, wherein the shared HARQ process is used to transmit low-latency data, and the method further comprises:
    接收所述网络侧配置低时延的逻辑信道与共享HARQ进程的映射关系，所述低时延的逻辑信道用于传输所述低时延的数据；receiving a mapping relationship between a low-latency logical channel configured on the network side and a shared HARQ process, where the low-latency logical channel is used to transmit the low-latency data;
    通过所述共享的HARQ进程与所述网络侧传输所述低时延的逻辑信道的数据。The data of the low-latency logical channel is transmitted with the network side through the shared HARQ process.
  11. 根据权利要求1所述的方法，其特征在于，所述网络侧的设备工作的频段部署在非授权频谱。The method according to claim 1, wherein the frequency band in which the device on the network side operates is deployed in an unlicensed spectrum.
  12. 根据权利要求1所述的方法，其特征在于，所述方法还包括：The method according to claim 1, wherein the method further comprises:
    通过共享HARQ进程的多个载波上同时与网络侧进行数据传输。Simultaneously perform data transmission with the network side on multiple carriers sharing the HARQ process.
  13. 一种多载波数据传输方法，其特征在于，所述方法包括：A multi-carrier data transmission method, characterized in that the method comprises:
    向UE发送配置信息，以使所述UE根据所述配置信息确定共享HARQ进程的多个载波；sending configuration information to the UE, so that the UE determines a plurality of carriers sharing the HARQ process according to the configuration information;
    通过目标载波与所述UE进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。Perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  14. 根据权利要求13所述的方法，其特征在于，共享的HARQ进程占 据的缓存大于非共享的HARQ进程占据的缓存。The method according to claim 13, wherein the buffer occupied by the shared HARQ process is larger than the buffer occupied by the non-shared HARQ process.
  15. 根据权利要求13所述的方法，其特征在于，各个载波通过不同的比特数指示HARQ进程标识。The method according to claim 13, wherein each carrier indicates the HARQ process identifier through a different number of bits.
  16. 根据权利要求13所述的方法，其特征在于，所述共享的HARQ进程的数量小于等于所述多个载波的所有HARQ进程的数量。The method according to claim 13, wherein the number of the shared HARQ processes is less than or equal to the number of all HARQ processes of the multiple carriers.
  17. 根据权利要求13至16任一所述的方法，其特征在于，所述向UE发送配置信息，包括：The method according to any one of claims 13 to 16, wherein the sending configuration information to the UE comprises:
    通过RRC信令向所述UE发送所述配置信息。The configuration information is sent to the UE through RRC signaling.
  18. 根据权利要求13所述的方法，其特征在于，所述通过目标载波与所述UE进行HARQ重传之前，还包括：The method according to claim 13, wherein before performing HARQ retransmission with the UE through the target carrier, the method further comprises:
    使用共享的HARQ进程通过所述原载波与所述UE进行数据传输；performing data transmission with the UE through the original carrier using a shared HARQ process;
    所述通过目标载波与所述UE进行HARQ重传，包括：The performing HARQ retransmission with the UE through the target carrier includes:
    当数据传输不成功时，向所述UE发送调度指令，以使所述UE确定所述目标载波；When the data transmission is unsuccessful, sending a scheduling instruction to the UE, so that the UE determines the target carrier;
    使用所述共享的HARQ进程通过所述目标载波与所述UE进行HARQ重传；performing HARQ retransmission with the UE through the target carrier using the shared HARQ process;
    其中，所述调度指令用于指示进行HARQ重传的一个或多个载波，所述一个或多个载波包括所述原载波和/或与所述原载波共享HARQ进程的其他载波。The scheduling instruction is used to indicate one or more carriers for HARQ retransmission, and the one or more carriers include the original carrier and/or other carriers that share the HARQ process with the original carrier.
  19. 根据权利要求18所述的方法，其特征在于，所述调度指令包括所述原载波的下行控制指令和/或所述目标载波的下行控制指令。The method according to claim 18, wherein the scheduling instruction comprises a downlink control instruction of the original carrier and/or a downlink control instruction of the target carrier.
  20. 根据权利要求18所述的方法，其特征在于，所述共享的HARQ进程用于传输低时延的数据，所述方法还包括：The method according to claim 18, wherein the shared HARQ process is used to transmit low-latency data, and the method further comprises:
    向所述UE发送配置低时延的逻辑信道与共享HARQ进程的映射关系，所述低时延的逻辑信道用于传输所述低时延的数据；sending to the UE the mapping relationship between the low-latency logical channel and the shared HARQ process, where the low-latency logical channel is used to transmit the low-latency data;
    通过所述共享的HARQ进程与所述UE传输所述低时延的逻辑信道的数据。The data of the low-latency logical channel is transmitted with the UE through the shared HARQ process.
  21. 根据权利要求13所述的方法，其特征在于，执行所述方法的网络侧的设备工作的频段部署在非授权频谱。The method according to claim 13, wherein the frequency band in which the device on the network side performing the method works is deployed in an unlicensed spectrum.
  22. 根据权利要求13所述的方法，其特征在于，所述方法还包括：The method of claim 13, wherein the method further comprises:
    通过共享HARQ进程的多个载波上同时与所述UE进行数据传输。Data transmission with the UE is performed simultaneously on multiple carriers sharing the HARQ process.
  23. 一种多载波数据传输装置，其特征在于，所述装置包括：A multi-carrier data transmission device, characterized in that the device comprises:
    配置信息接收模块，用于接收AP发送的配置信息，并根据所述配置信息确定共享HARQ进程的多个载波；a configuration information receiving module, configured to receive the configuration information sent by the AP, and determine a plurality of carriers sharing the HARQ process according to the configuration information;
    第一重传模块，用于通过目标载波与所述网络侧进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。A first retransmission module, configured to perform HARQ retransmission with the network side through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  24. 一种多载波数据传输装置，其特征在于，所述装置包括：A multi-carrier data transmission device, characterized in that the device comprises:
    配置信息发送模块，用于向UE发送配置信息，以使所述UE根据所述配置信息确定共享HARQ进程的多个载波；a configuration information sending module, configured to send configuration information to the UE, so that the UE determines a plurality of carriers sharing the HARQ process according to the configuration information;
    第二重传模块，用于通过目标载波与所述UE进行HARQ重传，所述目标载波为传输数据的原载波或者与所述原载波共享HARQ进程的其他载波。The second retransmission module is configured to perform HARQ retransmission with the UE through a target carrier, where the target carrier is the original carrier that transmits data or another carrier that shares the HARQ process with the original carrier.
  25. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时执行权利要求1至12任一项所述方法，或者权利要求13至22任一项所述方法的步骤。A storage medium on which a computer program is stored, characterized in that, when the computer program is run by a processor, the method of any one of claims 1 to 12, or the method of any one of claims 13 to 22 is executed A step of.
  26. 一种终端，包括如权利要求23所述的多载波数据传输装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至12任一项所述方法的步骤。A terminal, comprising the multi-carrier data transmission device according to claim 23, or comprising a memory and a processor, wherein the memory stores a computer program that can run on the processor, wherein the The processor executes the steps of the method of any one of claims 1 to 12 when running the computer program.
  27. 一种基站，包括如权利要求24所述的多载波数据传输装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求13至22任一项所述方法的步骤。A base station, comprising the multi-carrier data transmission device as claimed in claim 24, or comprising a memory and a processor, wherein the memory stores a computer program that can run on the processor, wherein the The processor executes the steps of the method of any one of claims 13 to 22 when running the computer program.
  28. 一种AP，包括如权利要求24所述的多载波数据传输装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求13至22任一项所述方法的步骤。An AP, comprising the multi-carrier data transmission device as claimed in claim 24, or comprising a memory and a processor, wherein the memory stores a computer program that can run on the processor, wherein the The processor executes the steps of the method of any one of claims 13 to 22 when running the computer program.
PCT/CN2021/131156 2020-12-21 2021-11-17 Multi-carrier data transmission method and apparatus, and storage medium, terminal, base station and ap WO2022134950A1 (en)

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