WO2022228328A1

WO2022228328A1 - Uplink transmission method and apparatus, and terminal

Info

Publication number: WO2022228328A1
Application number: PCT/CN2022/088697
Authority: WO
Inventors: 刘进华
Original assignee: 维沃移动通信有限公司
Priority date: 2021-04-29
Filing date: 2022-04-24
Publication date: 2022-11-03
Also published as: CN115276919A; CN115276919B

Abstract

The present application belongs to the technical field of wireless communication, and disclosed are an uplink transmission method and apparatus, and a terminal. The uplink transmission method of the embodiments of the present application comprises: when a service keepalive 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, a terminal device performing HARQ retransmission on the basis of a first retransmission rule, wherein the terminal device ignoring or relaxing the restriction of the running state of a first retransmission timer on performing HARQ retransmission using pre-configured uplink transmission permission is configured in the first retransmission rule, and the restriction of the running state of the first retransmission timer on the HARQ retransmission comprises: performing HARQ retransmission by using the uplink transmission permission after the first retransmission timer times out.

Description

Uplink transmission method, device and terminal

cross reference

The present invention claims the priority of the Chinese patent application with the application number 202110475592.2 and the invention titled "Uplink Transmission Method, Apparatus and Terminal" submitted to the Chinese Patent Office on April 29, 2021, the entire contents of which are incorporated herein by reference invention.

technical field

The present application belongs to the field of wireless communication technologies, and in particular relates to an uplink transmission method, device and terminal.

Background technique

In the 5G New Radio (NR) technology, 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.

However, in the aforementioned retransmission mechanism, 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.

SUMMARY OF THE INVENTION

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.

In a first aspect, a method for uplink transmission is provided, 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 In the case of , 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.

In a second aspect, an apparatus for uplink transmission is provided, 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.

In a third aspect, a terminal is provided, the terminal 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 The steps of implementing the method as described in the first aspect.

In a fourth aspect, a terminal is provided, 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.

In a fifth aspect, 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.

In a sixth aspect, a chip is provided, the chip 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.

In a seventh aspect, 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.

In the embodiment of the present application, 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.

Description of drawings

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.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "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. For example, the first object may be one or multiple. In addition, "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.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "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.

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. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . 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 technical solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

As shown in FIG. 2, which is a schematic flowchart of an uplink transmission method 200 provided by an exemplary embodiment of the present application, 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.

S210: 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.

The service survival timer (survival timer) is a timer defined and configured to determine whether a service exists or not during the communication process. In this embodiment, there are various ways to start the service keepalive timer. For example, 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.

For another example, 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. In this embodiment, when the service keepalive timer is running and/or the delay of the service data packet reaches the first threshold, 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.

Exemplarily, please refer to FIG. 3 , when a data packet is still within a certain period of time from the upper limit of the Packet Delay Budget (PDB), in order to obtain more HARQ retransmission opportunities, the terminal device can ignore it. The preconfigured retransmission timer (that is, the first retransmission timer in this embodiment) restricts HARQ retransmission. When 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. It should be noted that, according to the difference of the first retransmission rule, 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.

In addition, in this embodiment, 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). In this case, the first threshold may be determined according to the maximum allowed PDB, thereby reducing the probability of service termination.

Optionally, 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. For example, for the first retransmission rule, a network-side device (such as a base station) may be pre-configured by service, logical channel or logical channel combination, data radio bearer (Data Radio Bearer, DRB), 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.

In this embodiment, 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.

As shown in FIG. 4 , a schematic flowchart of an uplink transmission method 400 provided by an exemplary embodiment of the present application, the method 400 can be executed by a terminal, but can be executed by hardware/and/or software installed in the terminal. In this embodiment, the method 400 may at least include the following steps.

S410: 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.

Wherein, 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,

It should be noted that, in addition to referring to the relevant description in method embodiment 200 for the implementation process of S410, as a possible implementation manner, in this embodiment, according to the difference of the first retransmission rule, 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.

method one

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) In the case where the first HARQ process has been used for initial transmission or retransmission, start the first retransmission timer; and in the case where no HARQ feedback is received and the first retransmission timer has not expired, based on the configuration 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.

It should be noted that 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.

In addition, when the terminal device performs HARQ retransmission on the first MAC PDU, the second HARQ process used may be the same as or different from the first HARQ process.

In this regard, in an implementation manner, when the second HARQ process used by the terminal device is different from the first HARQ process, that is, 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.

In the first mode, 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. In the case where 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.

In addition, 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.

Method 2

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.

Wherein, "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.

In addition, similar to the aforementioned first uplink transmission license, in the second mode, 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.

In an implementation manner, the third HARQ process is the same as or different from the first HARQ process. In this regard, reference may be made to the relevant description of "the second HARQ process is the same or different from the first HARQ process" in the first method. For example, in this embodiment, the third HARQ process is the same as the first HARQ process. When the HARQ process is different, the hierarchical transmission gain can also be obtained. In order to avoid repetition, the details are not repeated here.

In the second mode, 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.

In addition, 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.

way three

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.

Wherein, 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.

It should be noted that, in the third mode, 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.

Further, as a possible implementation manner, on the basis of the foregoing manners 1 to 3, when the terminal device 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 step of performing HARQ retransmission on the PDU using the second HARQ process, or stopping the aforementioned step of performing HARQ retransmission on the second MAC PDU using the third HARQ process, or stopping the aforementioned step of performing HARQ on the third MAC PDU Steps for retransmission.

Optionally, the first condition includes at least one of the following (1)-(5).

(1) 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.

(2) The delay of the service data packet reaches the maximum allowable delay budget.

(3) The number of HARQ retransmissions reaches the maximum number of HARQ retransmissions.

In this embodiment, 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.

(4) The service survival timer stops or times out.

(5) 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.

In this embodiment, by setting the stop condition (ie, the first condition), the occupation of transmission resources due to invalid retransmission can be avoided, and the wireless communication performance can be ensured.

Further, as a possible implementation manner, 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.

In another possible implementation manner, in the uplink transmission of the terminal device, 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.

It should be noted that, for the

uplink transmission method

200 or 400 provided by the embodiments of the present application, 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 . In the embodiment of the present application, 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.

As shown in 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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. In the case of 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.

Optionally, 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. Exemplarily, 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. Specifically, 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.

Those skilled in the art can understand that 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. 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.

It should be understood that, in this embodiment of the present application, 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.

In the embodiment of the present application, 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. Generally, 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. In addition, 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. 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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 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 all 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 number of HARQ retransmissions ; the service survival timer of the target service is stopped or timed out; when the first retransmission timer is started, the first retransmission timer times out.

Optionally, 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.

Optionally, 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.

In the embodiment of the present application, 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.

Wherein, 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 Each process in the embodiment 200 and/or 400 can achieve the same technical effect. To avoid repetition, details are not repeated here.

It should be understood that 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.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present application can be embodied in the form of computer software products that are essentially or contribute to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A method for uplink transmission, comprising:

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 performs hybrid automatic transmission based on the first retransmission rule. Retransmission request HARQ retransmission;

Wherein, 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 limitation 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 method of claim 1, wherein the step of performing HARQ retransmission based on the first retransmission rule comprises:

In the case that the terminal device has used the first HARQ process for initial transmission or retransmission of the first medium access control MAC protocol data unit PDU, start the first retransmission timer;

In the case that no HARQ feedback is received and the first retransmission timer has not expired, HARQ retransmission is performed on the first MAC PDU using the second HARQ process based on the configured first uplink transmission grant.
The method of claim 1, wherein the step of performing HARQ retransmission based on the first retransmission rule comprises:

In the case that the terminal device uses the first HARQ process to complete the initial transmission or retransmission of the second MAC PDU, the first retransmission timer is ignored, and based on the preconfigured second uplink transmission grant, the first retransmission timer is ignored. The second MAC PDU uses the third HARQ process for HARQ retransmission.
The method of claim 2 or 3, wherein 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 method of claim 1, wherein the step of performing HARQ retransmission based on the first retransmission rule comprises:

After performing HARQ transmission or retransmission on the third MAC PDU, start the second retransmission timer;

In the case that the second retransmission 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 timing length of the first retransmission timer.
The method of any one of claims 2-5, wherein the method further comprises:

In the case where the first condition is satisfied, stop the step of performing HARQ retransmission on the first MAC PDU using the second HARQ process, or stop the HARQ retransmission using the third HARQ process on the second MAC PDU the step of transmitting, 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 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 number of HARQ retransmissions;

The service survival timer of the target service stops or times out;

When the first retransmission timer is started, the first retransmission timer times out.
The method of any one of claims 1-5, wherein the method further comprises:

In the case that the service survival timer of the target service is not in the running state, and/or in the case that the delay of the service data packet of the target service does not reach the first threshold, based on the fourth uplink transmission Allow HARQ initial transmission or retransmission;

When the initial transmission or retransmission of the HARQ is completed, the first retransmission timer is started or restarted.
The method of any one of claims 1-5, wherein the method further comprises:

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.
A device for uplink transmission, comprising:

A transmission module, configured to, 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, based on the first retransmission rule Perform hybrid automatic repeat request HARQ retransmission;

Wherein, 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 limitation 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 apparatus according to claim 9, wherein the transmission module is configured to start the first transmission or retransmission of the first medium access control (MAC) protocol data unit using the first HARQ process. a retransmission timer; and in the case where no HARQ feedback is received and the first retransmission timer has not expired, performing HARQ on the first MAC PDU using the second HARQ process based on the configured first uplink transmission grant Retransmission.
The apparatus of claim 9, wherein the transmission module 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 performing HARQ retransmission on the second MAC PDU using the third HARQ process based on the preconfigured second uplink transmission grant.
The apparatus of claim 10 or 11, wherein 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 apparatus of claim 9, wherein the transmission module is configured to start a second retransmission timer after performing HARQ transmission or retransmission on the third MAC PDU; and after the second retransmission timer In the case of timeout, 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 timing length of the first retransmission timer.
The apparatus according to any one of claims 10-13, wherein the transmission module is further configured to: in the case that the first condition is satisfied, stop the performing of the first MAC PDU using the second HARQ process The step of HARQ retransmission, or stopping 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 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 number of HARQ retransmissions;

The service survival timer of the target service stops running;

When the first retransmission timer is started, the first retransmission timer times out.
The apparatus according to any one of claims 9-13, wherein the transmission module is further configured to: in the case that the service survival timer of the target service is not in the running state, and/or, in the In the case where the time delay of the service data packet of the target service does not reach the first threshold, perform HARQ initial transmission or retransmission based on the fourth uplink transmission grant; and when the HARQ initial transmission or retransmission is completed, start the HARQ initial transmission or retransmission Or restart the first retransmission timer.
The apparatus according to any one of claims 9-13, wherein the transmission module is further configured to: in the case that the service data packet is transmitted correctly or the service survival timer stops running, stop the The first retransmission rule performs the steps of HARQ retransmission.
A terminal, comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor to implement any of claims 1-8. A step of the uplink transmission method.
A readable storage medium on which programs or instructions are stored, and when the programs or instructions are executed by a processor, the uplink transmission method according to any one of claims 1-8 is implemented.