WO2022228328A1 - Procédé et appareil de transmission en liaison montante, et terminal - Google Patents

Procédé et appareil de transmission en liaison montante, et terminal Download PDF

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Publication number
WO2022228328A1
WO2022228328A1 PCT/CN2022/088697 CN2022088697W WO2022228328A1 WO 2022228328 A1 WO2022228328 A1 WO 2022228328A1 CN 2022088697 W CN2022088697 W CN 2022088697W WO 2022228328 A1 WO2022228328 A1 WO 2022228328A1
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WIPO (PCT)
Prior art keywords
retransmission
harq
timer
uplink transmission
service
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PCT/CN2022/088697
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English (en)
Chinese (zh)
Inventor
刘进华
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维沃移动通信有限公司
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Publication of WO2022228328A1 publication Critical patent/WO2022228328A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • 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
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1848—Time-out mechanisms
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/188—Time-out mechanisms

Definitions

  • the present application belongs to the field of wireless communication technologies, and in particular relates to an uplink transmission method, device and terminal.
  • a retransmission timer is usually configured to trigger a terminal (User Equipment, UE) to perform a hybrid automatic repeat request (HARQ) retransmission. For example, when the transmission of the Physical Uplink Shared Channel (PUSCH) corresponding to the HARQ transmission ends, the retransmission timer is started, and after the retransmission timer expires, the UE triggers the use of the pre-configured uplink transmission permission for the HARQ process retransmit, etc.
  • PUSCH Physical Uplink Shared Channel
  • the retransmission is triggered only after waiting for the retransmission timer to expire, which makes the UE unable to utilize the available transmission resources to the greatest extent, resulting in a large delay in data transmission and affecting wireless communication. performance.
  • Embodiments of the present application provide an uplink transmission method, device, and terminal, which can improve the utilization rate of transmission resources and reduce data transmission delay.
  • a method for uplink transmission comprising: when a service survival timer of a target service is in a running state, and/or when a delay of a service data packet of the target service reaches a first threshold
  • the terminal device performs HARQ retransmission based on the first retransmission rule; wherein, the first retransmission rule is configured that the terminal device ignores or relaxes the running state of the first retransmission timer to use a preconfigured
  • the restriction on HARQ retransmission with the uplink transmission grant, the restriction on HARQ retransmission by the running state of the first retransmission timer includes: after the first retransmission timer expires, using the uplink transmission grant to perform HARQ retransmission HARQ retransmission.
  • an apparatus for uplink transmission comprising: a transmission module configured to be used when a service survival timer of a target service is in a running state, and/or when a service data packet of the target service is When the delay reaches the first threshold, perform HARQ retransmission based on the first retransmission rule; wherein the first retransmission rule configures the terminal device to ignore or relax the running state of the first retransmission timer.
  • Restriction on HARQ retransmission by the preconfigured uplink transmission permission, and the restriction on HARQ retransmission by the running state of the first retransmission timer includes: after the first retransmission timer expires, using the uplink transmission Transmission grants HARQ retransmission.
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor.
  • a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect. step.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a chip in a sixth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect A step of.
  • a computer program product/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the first The steps of the method of the aspect.
  • the terminal device when the service survival timer of the target service is in the running state, and/or when the delay of the service data packet of the target service reaches the first threshold, the terminal device ignores or relaxes the The running state of the first retransmission timer limits the use of preconfigured uplink transmission grants to perform HARQ retransmission, thereby greatly improving the utilization rate of transmission resources, reducing data transmission delay, and ensuring wireless communication performance.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.
  • FIG. 2 is a schematic flowchart of an uplink transmission method provided by an exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram of a data retransmission process provided by another exemplary embodiment of the present application.
  • FIG. 4 is a schematic flowchart of an uplink transmission method provided by another exemplary embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a block structure of an uplink transmission apparatus provided by an exemplary embodiment of the present application.
  • FIG. 6 is a schematic block structure diagram of a terminal provided by an exemplary embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • the following description describes an NR system for example purposes, and uses NR terminology in much of the following description, but the techniques are also applicable to applications other than NR system applications, such as 6th Generation (6G) communication systems.
  • 6G 6th Generation
  • FIG. 1 shows a schematic diagram of a result of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.
  • the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • the method 200 may be executed by a terminal, but may be executed by hardware/and/or software installed in the terminal. In this embodiment, the method 200 may at least include the following steps.
  • the terminal device performs the retransmission based on the first retransmission rule.
  • HARQ retransmission In the case that the service survival timer of the target service is in the running state, and/or in the case that the delay of the service data packet of the target service reaches the first threshold, the terminal device performs the retransmission based on the first retransmission rule. HARQ retransmission.
  • the target service may include, but is not limited to, emergency services provided in the 5G air interface (New Radio in Unlicensed Spectrum, NRU) technical scenario operating in a license-exempt frequency band, such as Internet of Things (I-IOT) services, virtual reality services (Virtual Reality, VR) video service, Augmented Reality (AR) video service, and virtual reality and augmented reality video mixed video (Extended Reality, XR) service, Ultra-Reliable and Low-Latency Communication (Ultra-Reliable and Low-Latency Communication) , URLLC) business, etc.
  • I-IOT Internet of Things
  • VR Virtual Reality
  • AR Augmented Reality
  • XR Extended Reality
  • Ultra-Reliable and Low-Latency Communication Ultra-Reliable and Low-Latency Communication
  • URLLC Ultra-Reliable and Low-Latency Communication
  • the service survival timer (survival timer) is a timer defined and configured to determine whether a service exists or not during the communication process.
  • the service keepalive timer may be started when the final data transmission fails. In this manner, the service keepalive timer is used when a data packet is successfully transmitted. Stop, if the service survival timer expires, it is determined that the service is interrupted.
  • the service survival timer is started or restarted when the data packet is sent successfully, wherein, in this manner, the service exists when the service survival timer runs, and when the service survival timer expires, it is determined that the service is interrupted.
  • the first retransmission rule is configured that the terminal device ignores or relaxes the restriction on the use of the preconfigured uplink transmission permission to perform HARQ retransmission by the operating state of the first retransmission timer (such as the Configured Grant Retransmission Timer).
  • the restriction on HARQ retransmission by the running state of the first retransmission timer includes: after the first retransmission timer expires, using the uplink transmission grant to perform HARQ retransmission.
  • the operation state of the first retransmission timer is adjusted (ignored or relaxed) to use the preconfigured uplink
  • the HARQ retransmission is limited by the transmission license, which can greatly improve the utilization rate of transmission resources, thereby increasing the chance of HARQ retransmission, transmitting the uplink service data correctly as soon as possible, reducing the data transmission delay, and reducing the probability of service termination. Ensure wireless communication performance.
  • the terminal device can ignore it.
  • the preconfigured retransmission timer (that is, the first retransmission timer in this embodiment) restricts HARQ retransmission.
  • the preconfigured retransmission timer is still running, HARQ retransmission is directly performed until the HARQ- ACK confirms or reaches the upper limit of PDB, stop the preconfigured retransmission timer.
  • the “retransmission timer” shown in FIG. 3 may be the first retransmission timer or the second retransmission timer mentioned in the embodiment of the application. There is no specific restriction on this.
  • the delay of the service data packet of the target service reaching the first threshold can be understood as: when the delay experienced by the service data packet has approached the limit of the PDB, the pre-configured retransmission can be stopped or relaxed. Restriction of HARQ retransmission by the timer (ie, the aforementioned first retransmission rule).
  • the first threshold may be determined according to the maximum allowed PDB, thereby reducing the probability of service termination.
  • the time point at which the terminal device activates the first retransmission rule, the retransmission parameters involved in the first retransmission rule, and the aforementioned first threshold may be implemented by a protocol agreement, a high-level configuration, or the like. , which is not limited here.
  • a network-side device such as a base station
  • DRB Data Radio Bearer
  • MAC entity ie cell group
  • the terminal device stops ignoring or relaxing the permission and/or parameters of the pre-configured retransmission timer, so that after receiving the permission and/or parameters, the terminal device can ignore or relax the pre-configured retransmission timing when the service survival timer is running Limiter on HARQ retransmissions.
  • the terminal device when the service survival timer of the target service is in the running state, and/or when the delay of the service data packet of the target service reaches the first threshold, the terminal device ignores or relaxes the first threshold.
  • the running state of a retransmission timer limits the use of pre-configured uplink transmission permission for HARQ retransmission, thereby increasing the chance of HARQ retransmission, improving the utilization rate of transmission resources to a greater extent, and reducing data transmission delay , to ensure wireless communication performance.
  • the method 400 can be executed by a terminal, but can be executed by hardware/and/or software installed in the terminal.
  • the method 400 may at least include the following steps.
  • the terminal device performs the retransmission based on the first retransmission rule.
  • HARQ retransmission In the case that the service survival timer of the target service is in the running state, and/or in the case that the delay of the service data packet of the target service reaches the first threshold, the terminal device performs the retransmission based on the first retransmission rule. HARQ retransmission.
  • the first retransmission rule is configured that the terminal device ignores or relaxes the restriction on using the preconfigured uplink transmission permission to perform HARQ retransmission by the running state of the first retransmission timer, and the first retransmission
  • the restriction on HARQ retransmission by the running state of the timer includes: after the first retransmission timer expires, using the uplink transmission grant to perform HARQ retransmission,
  • the implementation process of S410 may be different.
  • the following combined manner Modes 1 to 3 exemplarily describe the implementation process of the terminal device performing HARQ retransmission based on the first retransmission rule described in S410, and the content is as follows.
  • the step of performing HARQ retransmission based on the first retransmission rule described in S410 may include: performing the HARQ retransmission in the terminal device on a first media access control (Media Access Control, MAC) protocol data unit (Protocol Data Unit, PDU)
  • MAC Media Access Control
  • PDU Protocol Data Unit
  • the first uplink transmission grant (configured grant) of the first MAC PDU uses the second HARQ process to perform HARQ retransmission.
  • the first uplink transmission license may be an available uplink transmission license selected by the terminal device from multiple preconfigured uplink transmission licenses.
  • the uplink transmission license (such as the first uplink transmission license, the second uplink transmission license, the third uplink transmission license, the fourth uplink transmission license, etc.) mentioned in the embodiments of this application may be the network side equipment (such as the base station) according to the service, logical channel or logical channel combination, DRB, MAC entity, etc. are configured, and the first uplink transmission permission, the second uplink transmission permission, the third uplink transmission permission, etc. may correspond to the same preconfigured uplink transmission permission configuration ( configured grant configuration), can also correspond to different uplink transmission permission configurations, and no specific restrictions are made here.
  • the second HARQ process used may be the same as or different from the first HARQ process.
  • the terminal device may be temporarily allowed to select a different first HARQ process from the initially selected first HARQ process
  • the second HARQ process of the second HARQ process performs HARQ retransmission on the first MAC PDU, so that the terminal device can use another pre-configured (CG configuration) corresponding uplink transmission grant to retransmit the first MAC PDU, so that the terminal device can be made.
  • the time-frequency resources including the same carrier or different carriers, the same 20-MHz channel or different 20-MHz channels) for transmission of the first MAC PDU are flexibly selected for transmission, thereby obtaining hierarchical transmission gain.
  • the terminal device adjusts the use of the preconfigured retransmission timer (that is, the aforementioned first retransmission timer), so that the terminal device can receive HARQ feedback and the first retransmission timer is not received.
  • the transmission timer does not expire, the first MAC PDU is retransmitted using the second HARQ process based on the configured first uplink transmission permission, thereby increasing the chance of HARQ retransmission, reducing data transmission delay, reducing The probability of service termination ensures wireless communication performance.
  • the terminal device when performing HARQ retransmission, the terminal device also performs HARQ retransmission on the MAC PDU by using a HARQ process different from that in the HARQ initial transmission, so as to obtain hierarchical transmission gain.
  • the step of performing HARQ retransmission based on the first retransmission rule described in S410 includes: in the case that the terminal device uses the first HARQ process to complete the initial transmission or retransmission of the second MAC PDU, ignoring the first HARQ process A retransmission timer, and based on the preconfigured second uplink transmission grant, perform HARQ retransmission on the second MAC PDU using a third HARQ process.
  • "ignoring the first retransmission timing" in the second way can be understood as: after the terminal device completes the initial transmission and retransmission of the second MAC PDU using the first HARQ process, regardless of whether the first retransmission is started or not
  • the timer, or whether the first retransmission timer expires, is based on the preconfigured second uplink transmission permission, and uses the third HARQ process to perform HARQ retransmission on the second MAC PDU, thereby increasing the chance of HARQ retransmission , reduce the data transmission delay.
  • the second uplink transmission license may also be an available uplink transmission license selected by the terminal device from a plurality of preconfigured uplink transmission licenses.
  • the third HARQ process is the same as or different from the first HARQ process.
  • the second HARQ process is the same or different from the first HARQ process" in the first method.
  • the third HARQ process is the same as the first HARQ process.
  • the HARQ process is different, the hierarchical transmission gain can also be obtained. In order to avoid repetition, the details are not repeated here.
  • the terminal device adjusts the use of the pre-configured retransmission timer (that is, the aforementioned first retransmission timer), so that the terminal device uses the first HARQ process to complete the initial transmission or retransmission of the second MAC PDU. but the first retransmission timer is not running, based on the preconfigured second uplink transmission grant, the second MAC PDU is retransmitted using the third HARQ process, thereby increasing the HARQ retransmission. It reduces the delay of data transmission, reduces the probability of service termination, and ensures wireless communication performance.
  • the pre-configured retransmission timer that is, the aforementioned first retransmission timer
  • the terminal device when performing HARQ retransmission, the terminal device also performs HARQ retransmission on the MAC PDU by using a HARQ process different from that in the initial transmission. In this way, a hierarchical transmission gain can be obtained.
  • the step of performing HARQ retransmission based on the first retransmission rule described in S410 includes: after performing HARQ transmission or retransmission on the third MAC PDU, starting a second retransmission timer; at the second retransmission timing In the case of the timer timeout, HARQ retransmission is performed on the third MAC PDU based on the preconfigured third uplink transmission grant.
  • the timing length of the second retransmission timer is smaller than the timing length of the first retransmission timer, that is, the terminal device uses a service data longer than the service survival timer that is not running or the service data Start a retransmission timer with a small initial value when the delay of the packet does not reach the first threshold, and when the retransmission timer expires, perform HARQ retransmission on the third MAC PDU based on the preconfigured third uplink transmission permission Therefore, by shortening the timing length of the retransmission timer, the chance of HARQ retransmission is increased, the data transmission delay is reduced, the probability of service termination is reduced, and the wireless communication performance is ensured.
  • the second retransmission timer may be a timer obtained by modifying the timing length of the first retransmission timer, or may be a timer independent of the first retransmission timer. , there is no restriction here.
  • the terminal device when it satisfies the first condition, it may stop the step of performing HARQ retransmission, for example, stop the foregoing step of retransmitting the first MAC address.
  • the first condition includes at least one of the following (1)-(5).
  • HARQ ACK information corresponding to the first HARQ process, the second HARQ process or the third HARQ process is received; it can be understood that when the terminal device receives the HARQ ACK information, it can determine the service data packets of the target service The transmission is correct, therefore, HARQ retransmissions can be stopped.
  • the maximum allowable delay budget described in (2) and the maximum number of HARQ retransmissions described in (3) can be agreed upon in the protocol, network configuration or high-level configuration, and are not limited here.
  • the first retransmission timer When the first retransmission timer is started, the first retransmission timer times out. It can be understood that when the terminal device uses the second HARQ process to perform HARQ retransmission on the first MAC PDU, or when the second MAC PDU uses the third HARQ process to perform HARQ retransmission, or , when performing HARQ retransmission on the third MAC PDU, a first retransmission timer may be started, and when the first retransmission timer expires, HARQ retransmission may be stopped.
  • the stop condition ie, the first condition
  • the step of performing HARQ retransmission based on the first retransmission rule is stopped when the service data packet is correctly transmitted or the service survival timer stops running. That is, if the data transmission is correct and/or the service timer stops running, the terminal device can stop ignoring or relax the restriction on HARQ retransmission by the pre-configured retransmission timer, and resume normal use of the pre-configured retransmission timer trigger. HARQ retransmission mechanism, thereby further improving wireless communication performance.
  • the service survival timer of the target service when the service survival timer of the target service is not in the running state, and/or when the service data packet of the target service is in the If the delay does not reach the first threshold, perform HARQ initial transmission or retransmission based on the fourth uplink transmission permission; in the case of completing the HARQ initial transmission or retransmission, start or restart the first retransmission The timer, thereby, ensures reliable HARQ initial transmission or retransmission.
  • the executing subject may be an uplink transmission apparatus, or a control module in the uplink transmission apparatus for executing the uplink transmission method 200 or 400 .
  • the uplink transmission method 200 or 400 performed by the uplink transmission apparatus is taken as an example to describe the uplink transmission apparatus provided in the embodiment of the present application.
  • FIG. 5 it is a schematic block diagram of a block structure of an uplink transmission apparatus 500 provided by an exemplary embodiment of the present application.
  • the apparatus 500 includes: a transmission module 510, which is used when the service survival timer of the target service is in a running state and/or, when the delay of the service data packet of the target service reaches the first threshold, perform HARQ retransmission based on the first retransmission rule; wherein the first retransmission rule is configured with all
  • the terminal device ignores or relaxes the restriction on using the preconfigured uplink transmission grant to perform HARQ retransmission by the running state of the first retransmission timer, and the restriction on HARQ retransmission by the running state of the first retransmission timer includes: : After the first retransmission timer expires, use the uplink transmission grant to perform HARQ retransmission.
  • the transmission module 510 is configured to start the first retransmission timer when the first MAC PDU has used the first HARQ process for initial transmission or retransmission; and when no HARQ feedback is received, And in the case that the first retransmission timer does not expire, the second HARQ process is used to perform HARQ retransmission on the first MAC PDU based on the configured first uplink transmission permission.
  • the transmission module 510 is configured to ignore the first retransmission timer when the first HARQ process is used to complete the initial transmission or retransmission of the second MAC PDU; and based on the preconfigured second Uplink transmission permission, using the third HARQ process to perform HARQ retransmission on the second MAC PDU.
  • the second HARQ process is the same as or different from the first HARQ process; and/or the third HARQ process is the same as or different from the first HARQ process.
  • the transmission module 510 is configured to start a second retransmission timer after performing HARQ transmission or retransmission on the third MAC PDU;
  • the configured third uplink transmission permits HARQ retransmission of the third MAC PDU; wherein, the timing length of the second retransmission timer is smaller than the timing length of the first retransmission timer.
  • the transmission module 510 is further configured to: in the case of satisfying the first condition, stop the step of performing HARQ retransmission on the first MAC PDU using the second HARQ process, or stop the The step of performing HARQ retransmission on the second MAC PDU using the third HARQ process, or, stopping the step of performing HARQ retransmission on the third MAC PDU; wherein, the first condition includes at least one of the following: receiving to the HARQ ACK information corresponding to the first HARQ process, the second HARQ process or the third HARQ process; the delay of the service data packet reaches the maximum allowable delay budget; the number of HARQ retransmissions reaches the maximum HARQ retransmission. The number of transmissions; the service survival timer of the target service is stopped or expired; when the first retransmission timer is started, the first retransmission timer times out.
  • the transmission module 510 is further configured to: in the case that the service survival timer of the target service is not in the running state, and/or when the delay of the service data packets of the target service does not reach the predetermined time limit.
  • the first threshold HARQ initial transmission or retransmission is performed based on the fourth uplink transmission grant; and in the case of completing the HARQ initial transmission or retransmission, the first retransmission timer is started or restarted.
  • the transmission module 510 is further configured to stop the step of performing HARQ retransmission based on the first retransmission rule when the service data packet is correctly transmitted or the service survival timer stops running.
  • the uplink transmission device in this embodiment of the present application may be a device, a device or electronic device having an operating system, or a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the uplink transmission apparatus 500 provided in this embodiment of the present application can implement each process implemented by the method embodiments in FIG. 2 to FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the foregoing method embodiments 200 and/or 400 the method described.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 6 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610, etc. at least part of the components.
  • the terminal 600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 6 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 6042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 607 includes a touch panel 6071 and other input devices 6072 .
  • the touch panel 6071 is also called a touch screen.
  • the touch panel 6071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • the radio frequency unit 601 receives the downlink data from the network side device, and then processes it to the processor 610; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 609 may be used to store software programs or instructions as well as various data.
  • the memory 609 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 609 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 610.
  • the processor 610 is configured to, in the case that the service survival timer of the target service is in the running state, and/or in the case that the delay of the service data packet of the target service reaches the first threshold, based on the first threshold
  • the retransmission rule performs HARQ retransmission; wherein, the first retransmission rule is configured with the terminal device ignoring or relaxing the running state of the first retransmission timer when using the preconfigured uplink transmission permission to perform HARQ retransmission. Restriction, the restriction on HARQ retransmission by the running state of the first retransmission timer includes: after the first retransmission timer expires, using the uplink transmission grant to perform HARQ retransmission.
  • the step of the processor 610 performing HARQ retransmission based on the first retransmission rule includes: when the terminal device has used the first HARQ process to perform initial transmission or retransmission of the first MAC PDU, starting The first retransmission timer; in the case where no HARQ feedback is received and the first retransmission timer does not expire, the first MAC PDU is performed using the second HARQ process based on the configured first uplink transmission permission.
  • HARQ retransmission includes: when the terminal device has used the first HARQ process to perform initial transmission or retransmission of the first MAC PDU, starting The first retransmission timer; in the case where no HARQ feedback is received and the first retransmission timer does not expire, the first MAC PDU is performed using the second HARQ process based on the configured first uplink transmission permission.
  • HARQ retransmission includes: when the terminal device has used the first HARQ process to perform initial transmission or retransmission of the first
  • the step of the processor 610 performing HARQ retransmission based on the first retransmission rule includes: in the case that the terminal device uses the first HARQ process to complete the initial transmission or retransmission of the second MAC PDU, ignoring the the first retransmission timer, and based on the preconfigured second uplink transmission grant, perform HARQ retransmission on the second MAC PDU using the third HARQ process.
  • the second HARQ process is the same as or different from the first HARQ process; and/or the third HARQ process is the same as or different from the first HARQ process.
  • the step of the processor 610 performing HARQ retransmission based on the first retransmission rule includes: after performing HARQ transmission or retransmission on the third MAC PDU, starting a second retransmission timer; When the transmission timer expires, perform HARQ retransmission on the third MAC PDU based on the preconfigured third uplink transmission grant; wherein the timing length of the second retransmission timer is smaller than the first retransmission timing timer length.
  • the processor 610 is further configured to stop the step of performing HARQ retransmission on the first MAC PDU using the second HARQ process, or stop the step of performing HARQ retransmission on the first MAC PDU when the first condition is satisfied.
  • the processor 610 is further configured to, when the service survival timer of the target service is not in the running state, and/or when the delay of the service data packet of the target service does not reach the first In the case of the threshold, HARQ initial transmission or retransmission is performed based on the fourth uplink transmission grant; in the case of completing the HARQ initial transmission or retransmission, the first retransmission timer is started or restarted.
  • the processor 610 is further configured to stop the step of performing HARQ retransmission based on the first retransmission rule when the service data packet is correctly transmitted or the service survival timer stops running.
  • the service survival timer of the target service when the service survival timer of the target service is in the running state, and/or when the delay of the service data packet of the target service reaches the first threshold, the first threshold is ignored or relaxed.
  • the running state of the retransmission timer restricts the use of preconfigured uplink transmission grants for HARQ retransmission, thereby greatly improving the utilization rate of transmission resources, reducing data transmission delay, and ensuring wireless communication performance.
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing uplink transmission method 200 and/or 400 embodiments is implemented , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used for running network-side device programs or instructions to implement the above uplink transmission method
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used for running network-side device programs or instructions to implement the above uplink transmission method
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the embodiments of the present application also provide a computer program product, the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When the processor is executed, each process of the above-mentioned uplink transmission method 200 and/or 400 embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention appartient au domaine technique des communications sans fil, et concerne un procédé et un appareil de transmission en liaison montante, et un terminal. Le procédé de transmission en liaison montante selon les modes de réalisation de la présente invention comprend l'opération suivante : lorsqu'un temporisateur de survie de service d'un service cible est dans un état de fonctionnement, et/ou lorsqu'un retard d'un paquet de données de service du service cible atteint un premier seuil, un dispositif terminal effectue une retransmission HARQ sur la base d'une première règle de retransmission, le dispositif terminal ignorant ou atténuant la restriction, qui est configurée dans la première règle de retransmission, concernant l'état de fonctionnement d'un premier temporisateur de retransmission lors de l'exécution de la retransmission HARQ à l'aide d'une autorisation de transmission en liaison montante préconfigurée, et la restriction concernant l'état de fonctionnement du premier temporisateur de retransmission lors de la retransmission HARQ comprenant : l'exécution de la retransmission HARQ à l'aide de l'autorisation de transmission en liaison montante après expiration du premier temporisateur de retransmission.
PCT/CN2022/088697 2021-04-29 2022-04-24 Procédé et appareil de transmission en liaison montante, et terminal WO2022228328A1 (fr)

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CN202110475592.2A CN115276919A (zh) 2021-04-29 2021-04-29 上行传输方法、装置及终端
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Citations (3)

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CN109451080A (zh) * 2019-01-14 2019-03-08 北京理工大学 一种无线场景下ndn兴趣包可靠传输方法
US20200351036A1 (en) * 2019-05-02 2020-11-05 Lg Electronics Inc. Method and apparatus for performing retransmission of uplink data in wireless communication system
WO2021072701A1 (fr) * 2019-10-17 2021-04-22 Qualcomm Incorporated Déclenchement de temporisateur d'état de tampon

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CN109451080A (zh) * 2019-01-14 2019-03-08 北京理工大学 一种无线场景下ndn兴趣包可靠传输方法
US20200351036A1 (en) * 2019-05-02 2020-11-05 Lg Electronics Inc. Method and apparatus for performing retransmission of uplink data in wireless communication system
WO2021072701A1 (fr) * 2019-10-17 2021-04-22 Qualcomm Incorporated Déclenchement de temporisateur d'état de tampon

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