Method for releasing dynamic grant-free transmission configuration and related apparatus

Abstract

A method for releasing dynamic grant-free transmission configuration and a related apparatus. The method comprises: receiving control information from a first apparatus, the control information being used for retransmission and used for releasing a first dynamic grant-free transmission configuration; and releasing the first dynamic grant-free transmission configuration on the basis of the control information. The technical solution of the present application can achieve rapid and low-overhead release of dynamic grant-free transmission configurations.

Description

A method and related device for releasing dynamic authorization-free transmission configuration

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on April 3, 2024, with application number 202410404992.8 and application name “A method and related device for releasing dynamic authorization-free transmission configuration”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a method for releasing a dynamic authorization-free transmission configuration and a related device. Background Art

[0003] Transmission technology without dynamic grants refers to a technique in which a base station semi-statically configures the transmission resources and parameters used for uplink data transmission for a terminal through higher-layer signaling and / or physical layer signaling. There are two types of uplink dynamic grants: Type 1 configured grant (Type 1CG) and Type 2 configured grant (Type 2CG).

[0004] In the first type of configured grant, the base station sends a configured grant configuration to the terminal via radio resource control (RRC) signaling. This configuration information is used to configure all transmission resources and transmission parameters. After receiving the RRC signaling, the terminal can immediately use the grant configuration information configured by the RRC signaling to transmit data.

[0005] In a second type of authorization, the base station first sends authorization configuration information to the terminal via RRC signaling. This configuration information is used to configure a portion of transmission resources and transmission parameters. The base station then sends downlink control information (DCI) to the terminal to activate uplink data transmission based on the second type of authorization, and simultaneously sends authorization configuration information to the terminal. This configuration information is used to configure another portion of transmission resources and transmission parameters. After receiving this RRC signaling, the terminal cannot immediately transmit data using the authorization configuration information configured by the RRC signaling. Instead, it must wait until it receives the corresponding activation DCI before it can use the RRC signaling and the authorization configuration information configured by the activation DCI to transmit data.

[0006] Downlink dynamic-free authorization can also be called semi-persistent scheduling (SPS). Its mechanism is similar to the authorization of the second type of configuration mentioned above. The base station sends SPS configuration information to the terminal through RRC signaling. After receiving the RRC signaling, the terminal cannot immediately use the SPS configuration information configured by the RRC signaling to receive downlink data. Instead, it must wait until the corresponding activation DCI is received before it can use the RRC signaling and the SPS configuration information configured by the activation DCI to receive downlink data.

[0007] Currently, when a dynamic grant-free transmission configuration needs to be released or deactivated, for Type 1CG, the base station needs to release the configuration by reissuing RRC signaling. For Type 2CG or SPS, the base station needs to release the configuration by reissuing RRC signaling or deactivating DCI. However, the RRC signaling cycle is generally long, making it difficult to quickly release the configuration, which affects resource utilization efficiency. In addition, the issuance of RRC signaling or deactivation DCI, as well as the terminal's blind detection of the deactivation DCI, incur significant overhead. Summary of the Invention

[0008] The embodiments of the present application provide a method and related apparatus for releasing a dynamic authorization-free transmission configuration, which can achieve fast and low-overhead release of a dynamic authorization-free transmission configuration.

[0009] In a first aspect, an embodiment of the present application provides a method for releasing a dynamic authorization-free transmission configuration, which can be applied to a terminal side, such as a terminal or a terminal device or a communication module in a terminal, or a circuit or chip responsible for a communication function in the terminal (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or system in package (SIP) chip containing a modem core). Taking the method as an example of applying the method to a terminal device, the method includes:

[0010] receiving control information from the first device, the control information being used for retransmission and for releasing the first dynamic grant-free transmission configuration;

[0011] The first dynamic authorization-free transmission configuration is released according to the control information.

[0012] Optionally, the first device is a network device, and the method can be used in an air interface link transmission scenario without dynamic authorization.

[0013] Optionally, the first device is another terminal device, and the method can be used in a sidelink dynamic authorization-free transmission scenario.

[0014] Through the above embodiment, the first device can add information for indicating that the control information is used to release (or deactivate) the dynamic authorization-free transmission configuration in the control information originally used for retransmission (such as DCI / SCI), so that the control information can simultaneously realize the retransmission scheduling function and the function of releasing the dynamic authorization-free transmission configuration. Accordingly, when the dynamic authorization-free transmission configuration between the terminal device and the first device needs to be released, the first device can release the dynamic authorization-free transmission configuration by sending the control information to the terminal device, without having to release the dynamic authorization-free transmission configuration by specifically sending RRC signaling or deactivating control information to the terminal device, thereby saving overhead. In addition, DCI / SCI belongs to physical layer (or L1 layer) signaling, and RRC signaling belongs to high-layer signaling. The sending cycle of DCI / SCI is shorter than that of RRC signaling, thereby realizing the rapid release of the dynamic authorization-free transmission configuration. In addition, the terminal device has natural feedback on DCI / SCI, so the terminal device does not need to specifically confirm the release of the dynamic authorization-free transmission configuration, thereby further reducing terminal overhead and complexity.

[0015] In a possible implementation manner, the control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is used for retransmission; or,

[0016] The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last received from the first device.

[0017] Through the above embodiment, the first value of the first indicator field in the control information is used to indicate that the control information is for retransmission, and the terminal device can thereby determine whether the control information is for retransmission based on the value of the first indicator field. Alternatively, the value of the first indicator field in the control information has not flipped relative to the previous value to indicate that the control information is for retransmission, and the terminal device can thereby determine whether the control information is for retransmission based on whether the value of the first indicator field has flipped relative to the previous value.

[0018] In a possible implementation, the control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0019] Through the above implementation, the second value of the second indication field in the control information is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration. Accordingly, the terminal device can determine whether the control information is used to release the dynamic authorization-free transmission configuration based on the value of the second indication field.

[0020] In a possible implementation manner, the control information is scrambled by the first radio network temporary identifier, so as to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0021] Through the above implementation, the control information is encrypted by the first wireless network temporary identifier to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration. Accordingly, the terminal device can determine whether the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration based on the wireless network temporary identifier that scrambles the control information.

[0022] In a possible implementation manner, the control information is received through a first resource, and is used to indicate that the control information is used for retransmission and for releasing a dynamic grant-free transmission configuration.

[0023] Through the above-mentioned implementation mode, control information is received through the first resource to indicate that the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization. Accordingly, the terminal device can determine whether the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization based on the resource used to detect or receive the control information, and there is no need to carry information specifically used to indicate whether the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization in the control information, which is beneficial to reducing the indication overhead.

[0024] In a possible implementation manner, the control information includes a third indication field, where the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

[0025] Through the above-mentioned implementation, when there are multiple sets of dynamic authorization-free transmission configurations, the third indication field in the control information is used to indicate the first dynamic authorization-free transmission configuration that needs to be released. Based on this, the terminal device can determine which set or sets of the multiple sets of dynamic authorization-free transmission configurations need to be released according to the third indication field.

[0026] In one possible implementation, the control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission.

[0027] Through the above-mentioned embodiment, the fourth indicator field in the control information is used to indicate the modulation order of the current retransmission, and the terminal device can thereby determine the modulation order to be used for the current retransmission based on the value of the fourth indicator field. Alternatively, the fourth indicator field in the control information is used to indicate the adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission, and the terminal device can thereby determine the adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission based on the value of the fourth indicator field, and then determine the modulation order to be used for the current retransmission.

[0028] In a possible implementation, the first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundant version RV field or a hybrid automatic repeat request HARQ process field.

[0029] Through the above implementation, redundant bits in the NDI field, MCS field, RV field, or HARQ process field can be used to indicate the above-mentioned related information. Taking the MCS field as an example, when DCI / SCI is used for retransmission, the MCS field only needs to occupy four values. Therefore, the MCS field has redundant bits that can be used to indicate other information, thereby fully utilizing indication resources and saving indication overhead.

[0030] In a possible implementation, the method further includes: determining, based on first information from the first device, whether to enable the control information to be used for retransmission and for releasing the dynamic grant-free transmission configuration.

[0031] Through the above implementation, the first information is used to indicate whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration. Accordingly, the terminal device can determine whether the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time based on the first information.

[0032] In a possible implementation, determining, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration includes:

[0033] When the first information is a first value, determining to enable the control information for retransmission and for releasing a dynamic grant-free transmission configuration;

[0034] When the first information is a second value, it is determined that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

[0035] Through the above implementation, the value of the first information is used to indicate whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration. Accordingly, the terminal device can determine whether the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time according to the value of the first information.

[0036] In a possible implementation, determining, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration includes:

[0037] When receiving first information from the first device, determining to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration;

[0038] When the first information from the first device is not received, it is determined not to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration.

[0039] Through the above-mentioned implementation mode, whether the first information is received is used to indicate whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration. Accordingly, the terminal device can determine whether the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time based on whether the first information is received.

[0040] In a second aspect, an embodiment of the present application provides a method for releasing a dynamic authorization-free transmission configuration, which can be applied to a first device, the method comprising:

[0041] determining control information, where the control information is used for retransmission and for releasing the first dynamic grant-free transmission configuration;

[0042] The control information is sent to the terminal device.

[0043] Optionally, the first device is a network device, and the method can be used in an air interface link transmission scenario without dynamic authorization.

[0044] Optionally, the first device is another terminal device, and the method can be used in a sidelink dynamic authorization-free transmission scenario.

[0045] In a possible implementation manner, the control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is used for retransmission; or,

[0046] The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last sent to the terminal device.

[0047] In a possible implementation, the control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0048] In a possible implementation manner, the control information is scrambled by the first radio network temporary identifier, so as to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0049] In a possible implementation manner, the control information is received through a first resource, and is used to indicate that the control information is used for retransmission and for releasing a dynamic grant-free transmission configuration.

[0050] In a possible implementation manner, the control information includes a third indication field, where the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

[0051] In one possible implementation, the control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission.

[0052] In a possible implementation, the first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundant version RV field or a hybrid automatic repeat request HARQ process field.

[0053] In one possible implementation, the method further includes:

[0054] First information is sent to the terminal device, where the first information is used to indicate whether to enable the control information for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0055] In a possible implementation manner, when the first information is a first value, it indicates enabling the control information for retransmission and for releasing a dynamic authorization-free transmission configuration;

[0056] When the first information is a second value, it indicates that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

[0057] In a third aspect, an embodiment of the present application provides a device for releasing a dynamic authorization-free transmission configuration, which includes a module or unit for executing the method described in the first aspect or any possible implementation method of the first aspect.

[0058] In one possible implementation, the device includes:

[0059] a transceiver unit, configured to receive control information from the first device, wherein the control information is used for retransmission and for releasing the first dynamic authorization-free transmission configuration;

[0060] A processing unit is configured to release the first dynamic authorization-free transmission configuration according to the control information.

[0061] In a possible implementation manner, the control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is used for retransmission; or,

[0062] The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last received from the first device.

[0063] In a possible implementation, the control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0064] In a possible implementation manner, the control information is scrambled by the first radio network temporary identifier, so as to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0065] In a possible implementation manner, the control information is received through a first resource, and is used to indicate that the control information is used for retransmission and for releasing a dynamic grant-free transmission configuration.

[0066] In a possible implementation manner, the control information includes a third indication field, where the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

[0067] In one possible implementation, the control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission.

[0068] In a possible implementation, the first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundant version RV field or a hybrid automatic repeat request HARQ process field.

[0069] In a possible implementation manner, the processing unit is further configured to: determine, based on the first information from the first device, whether to enable the control information to be used for retransmission and for releasing the dynamic grant-free transmission configuration.

[0070] In a possible implementation manner, when the processing unit determines, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration, it is specifically configured to:

[0071] When the first information is a first value, determining to enable the control information for retransmission and for releasing a dynamic grant-free transmission configuration;

[0072] When the first information is a second value, it is determined that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

[0073] In a possible implementation manner, when the processing unit determines, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration, it is specifically configured to:

[0074] When the transceiver unit receives the first information from the first device, determining to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration;

[0075] When the transceiver unit does not receive the first information from the first device, it is determined not to enable the control information to be used for retransmission and for releasing the dynamic grant-free transmission configuration.

[0076] In a fourth aspect, an embodiment of the present application provides a device for releasing a dynamic authorization-free transmission configuration, which includes a module or unit for executing the method described in the second aspect or any possible implementation method of the second aspect.

[0077] In one possible implementation, the device includes:

[0078] a processing unit, configured to determine control information for retransmission and for releasing the first dynamic grant-free transmission configuration;

[0079] The transceiver unit is configured to send the control information to the terminal device.

[0080] In a possible implementation manner, the control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is used for retransmission; or,

[0081] The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last sent to the terminal device.

[0082] In a possible implementation, the control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0083] In a possible implementation manner, the control information is scrambled by the first radio network temporary identifier, so as to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0084] In a possible implementation manner, the control information is received through a first resource, and is used to indicate that the control information is used for retransmission and for releasing a dynamic grant-free transmission configuration.

[0085] In a possible implementation manner, the control information includes a third indication field, where the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

[0086] In one possible implementation, the control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission.

[0087] In a possible implementation, the first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundant version RV field or a hybrid automatic repeat request HARQ process field.

[0088] In a possible implementation manner, the transceiver unit is further configured to: send first information to the terminal device, where the first information is used to indicate whether to enable the control information to be used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0089] In a possible implementation manner, when the first information is a first value, it indicates enabling the control information for retransmission and for releasing a dynamic authorization-free transmission configuration;

[0090] When the first information is a second value, it indicates that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

[0091] In a fifth aspect, an embodiment of the present application provides an electronic device, comprising a processor coupled to a memory and configured to execute computer programs or instructions in the memory to implement the method described in any one of the first and second aspects or any possible implementation methods. Optionally, the electronic device further comprises a memory. Optionally, the electronic device further comprises a communication interface, the processor coupled to the communication interface.

[0092] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed, the method described in any one of the first to second aspects or any possible implementation method is implemented.

[0093] In the seventh aspect, an embodiment of the present application provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are executed, the method described in any aspect of the first to second aspects or any possible implementation method is implemented.

[0094] In an eighth aspect, an embodiment of the present application provides a chip, comprising a processor configured to execute a computer program or instruction. When the processor executes the computer program or instruction, the method described in any one of the first and second aspects or any possible implementation manner is implemented. Optionally, the chip further comprises a communication interface configured to receive or transmit signals.

[0095] In the ninth aspect, an embodiment of the present application provides a chip, which includes a logic circuit and an input / output interface, and the logic circuit is used to couple with the input / output interface and transmit data through the input / output interface to execute the method described in any aspect of the first to second aspects or any possible implementation method.

[0096] In a tenth aspect, an embodiment of the present application provides a system, comprising an apparatus as described in the third aspect or any possible implementation of the third aspect, and an apparatus as described in the fourth aspect or any possible implementation of the fourth aspect.

[0097] In the eleventh aspect, an embodiment of the present application provides a system, which includes a terminal device and a first device, wherein the terminal device is used to execute the method described in the above-mentioned first aspect or any possible implementation method of the first aspect, and the first device is used to execute the method described in the above-mentioned second aspect or any possible implementation method of the second aspect.

[0098] The beneficial effects brought about by the above-mentioned second to eleventh aspects can be referred to the description of the beneficial effects in the first aspect, and will not be repeated here.

[0099] In addition, in the process of executing the method described in any one of the first to second aspects and any possible implementation methods, the process of sending information and / or receiving information in the above method can be understood as the process of the processor outputting information and / or the process of the processor receiving input information. When outputting information, the processor can output the information to the transceiver (or communication interface, or sending module) so that it can be transmitted by the transceiver. After the information is output by the processor, it may also need to undergo other processing before it reaches the transceiver. Similarly, when the processor receives input information, the transceiver (or communication interface, or sending module) receives the information and inputs it into the processor. Furthermore, after the transceiver receives the information, the information may need to undergo other processing before it is input into the processor.

[0100] Based on the above principles, for example, the sending of information mentioned in the above method can be understood as the processor outputting information. For another example, the receiving of information can be understood as the processor receiving input information.

[0101] Optionally, for the operations such as transmission, sending and receiving involved in the processor, if there is no special explanation, or if they do not conflict with their actual functions or internal logic in the relevant description, they can be more generally understood as processor output, reception, input and other operations.

[0102] Optionally, in the process of executing the method described in any one of the first to second aspects and any possible implementation methods, the processor may be a processor specifically used to execute these methods, or a processor that executes these methods by executing computer instructions in a memory, such as a general-purpose processor. The memory may be a non-transitory memory, such as a read-only memory (ROM), which may be integrated with the processor on the same chip or may be separately provided on different chips. The embodiment of the present application does not limit the type of memory and the configuration of the memory and the processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application.

[0104] FIG1 is a schematic diagram of uplink data transmission based on dynamic authorization;

[0105] FIG2 is a schematic diagram of uplink data transmission based on the authorization of the first type of configuration;

[0106] FIG3 is a schematic diagram of uplink data transmission based on the authorization of the second type of configuration;

[0107] FIG4 is a schematic diagram of a network architecture of a communication system provided in an embodiment of the present application;

[0108] FIG5 is a flow chart of a method for releasing a dynamic authorization-free transmission configuration according to an embodiment of the present application;

[0109] FIG6 is a schematic structural diagram of a device for releasing a dynamic authorization-free transmission configuration provided in an embodiment of the present application;

[0110] FIG7 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0111] FIG8 is a schematic structural diagram of a chip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0112] In order to make the purpose, technical solutions and advantages of this application clearer, the embodiments of this application will be described below in conjunction with the drawings in the embodiments of this application.

[0113] In this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0114] The terms "first," "second," and the like mentioned in the embodiments of the present application do not limit the quantity or order of execution, and "first," "second," and the like do not necessarily limit differences. In addition, the terms "include," "comprise," and "have," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0115] The “embodiment” mentioned herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that in the various embodiments of the present application, unless otherwise specified and there is a logical conflict, the terms and / or descriptions between the various embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment according to their inherent logical relationship.

[0116] It should be understood that in this application, "at least one" means one or more, and "more than one" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0117] In the description of this application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, the information to be indicated can be directly indicated, such as indicating the information to be indicated itself or the index of the information to be indicated. For another example, the information to be indicated can also be indirectly indicated by indicating other information, and there is an association between the other indicated information and the information to be indicated. For another example, only a part of the information to be indicated can be indicated, while the other parts of the information to be indicated are known or agreed in advance. In addition, the indication of specific information can be achieved by means of the pre-agreed (such as specified in the protocol) order of arrangement of each information, thereby reducing the indication overhead to a certain extent.

[0118] To facilitate understanding of the embodiments of the present application, the following first introduces the relevant technologies of dynamic grant and without dynamic grant. Dynamic grant can also be called dynamic scheduling, and without dynamic grant can also be called grant free or configured grant (CG). The following is an exemplary explanation.

[0119] Please refer to Figure 1, which is a schematic diagram of uplink data transmission based on dynamic grants. As shown in Figure 1, when a terminal has an uplink data transmission requirement, it sends a scheduling request (SR) to the base station via the physical uplink control channel (PUCCH) or a non-empty buffer status report (BSR) to the base station via the physical uplink shared channel (PUSCH). After receiving the SR or BSR sent by the terminal, the base station sends downlink control information (DCI) to the terminal via the physical downlink control channel (PDCCH). The DCI carries an uplink grant, which authorizes the terminal to use specified transmission resources and transmission parameters to transmit uplink data. After receiving the DCI, the terminal can transmit data based on the uplink grant.

[0120] The above-mentioned uplink data transmission based on dynamic authorization can efficiently utilize the real-time channel information between the terminal and the base station, and specify appropriate transmission resources and transmission parameters for each transmission of the terminal. However, before sending data each time, the terminal needs to send an SR or BSR to the base station, and then the base station will authorize it through DCI. This process will introduce transmission delay and PDCCH signaling overhead. At the same time, since the reception of PDCCH usually requires the terminal to perform blind detection on different time-frequency resources according to different control channel element (CCE) aggregation levels, different DCI formats, different DCI lengths, and different radio network temporary identifiers (RNTI), it consumes a lot of power.

[0121] In order to reduce transmission delay, signaling overhead and terminal power consumption, dynamic authorization-free transmission technology has been introduced. Its basic principle is that the base station configures the transmission resources and transmission parameters used for uplink data transmission for the terminal in a semi-static manner through high-layer signaling and / or physical layer signaling. When the terminal has uplink data transmission requirements, it does not need to go through the process of sending SR or BSR to the base station and waiting for uplink authorization. Instead, it can directly use the semi-statically configured transmission resources and transmission parameters to send data to the base station, realizing the data coming and going, thereby achieving the purpose of reducing transmission delay, signaling overhead and terminal power consumption.

[0122] Uplink dynamic-free grant includes two types: Type 1 configured grant (Type 1CG) and Type 2 configured grant (Type 2CG).

[0123] Please refer to Figure 2, which is a schematic diagram of uplink data transmission based on a first-type configured grant. As shown in Figure 2, the base station sends configured grant configuration information to the terminal via radio resource control (RRC) signaling. This configuration information is used to configure all transmission resources and transmission parameters, including the time domain resource period, open-loop power control parameters, waveform, redundancy version (RV) sequence, repetition count, frequency hopping mode, resource allocation type, number of hybrid automatic repeat request (HARQ) processes, demodulation reference signal (DMRS) parameters, modulation coding scheme (MCS) table, resource block group (RBG) size, as well as time domain resources, frequency domain resources, MCS, etc. After receiving this RRC signaling, the terminal can immediately use the grant configuration information configured by the RRC signaling to transmit data.

[0124] Please refer to Figure 3, which is a schematic diagram of uplink data transmission based on a second-type configuration grant. As shown in Figure 3, the second-type configuration grant is configured in a two-step manner: First, the base station sends grant configuration information to the terminal via RRC signaling. This configuration information is used to configure a portion of transmission resources and transmission parameters, including the time domain resource period, open-loop power control parameters, waveform, redundancy version sequence, repetition number, frequency hopping mode, resource allocation type, number of HARQ processes, DMRS parameters, MCS table, RBG size, etc.; then, the base station sends an activation DCI to the terminal to activate uplink data transmission based on the second-type configuration grant, and simultaneously sends the configured grant configuration information to the terminal. This configuration information is used to configure another portion of transmission resources and transmission parameters, including time domain resources, frequency domain resources, MCS, etc. After receiving this RRC signaling, the terminal cannot immediately transmit data using the grant configuration information configured by this RRC signaling. Instead, it must wait until it receives the corresponding activation DCI before it can use this RRC signaling and the grant configuration information configured by this activation DCI to transmit data.

[0125] Downlink dynamic-free authorization can also be called semi-persistent scheduling (SPS). Its mechanism is similar to the authorization of the second type of configuration mentioned above. It adopts a two-step configuration method. The base station sends SPS configuration information to the terminal through RRC signaling. After receiving the RRC signaling, the terminal cannot immediately use the SPS configuration information configured by the RRC signaling to receive downlink data. Instead, it must wait until the corresponding activation DCI is received before it can use the RRC signaling and the SPS configuration information configured by the activation DCI to receive downlink data.

[0126] Currently, when dynamic grant-free transmission configuration information needs to be released or deactivated, for Type 1CG, the base station needs to release the dynamic grant-free transmission configuration by reissuing RRC signaling. For Type 2CG or SPS, the base station needs to release the dynamic grant-free transmission configuration by reissuing RRC signaling or deactivating DCI. However, the RRC signaling delivery cycle is generally long, making it difficult to achieve rapid release, affecting resource utilization efficiency. In addition, the delivery of RRC signaling or deactivation DCI, as well as the terminal's blind detection of the deactivation DCI, incur significant overhead.

[0127] In order to solve the above problems, the embodiments of the present application provide a method and related apparatus for releasing a dynamic authorization-free transmission configuration, which can realize fast and low-overhead release of a dynamic authorization-free transmission configuration.

[0128] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system for mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunications system (UMTS) system, enhanced data rate for GSM evolution (EDGE) system, and world-wide interoperability for microwave access (WiMAX) system. The technical solutions of the embodiments of the present application can also be applied to other communication systems, such as public land mobile network (PLMN) systems, advanced long term evolution (LTE advanced, LTE-A) systems, fifth generation (5G) systems, new radio (NR) systems (such as sixth generation (6G) systems), machine to machine (M2M) systems, or other communication systems that will evolve in the future, etc., and the embodiments of the present application are not limited to this.

[0129] The communication system includes at least two entities, one of which can send data to the other entity or receive data sent by the other entity. The data here can be, but is not limited to: physical signals, such as preambles, reference signals, etc.; physical layer control information, such as downlink control information (DCI), uplink control information (UCI), etc.; control plane (CP) data, such as radio resource control (RRC) messages, etc.; user plane (UP) data; other specific scenario or application-related information, such as relevant data generated by artificial intelligence (AI) and machine learning (ML) (such as gradient information, training data, model parameters, etc.), enabling perception functions or relevant data generated by perception, etc.

[0130] Please refer to Figure 4, which is a schematic diagram of a network architecture of a communication system provided in an embodiment of the present application. As shown in Figure 4, the network architecture 400 includes a network device 410 and multiple terminal devices (e.g., terminal device 420a, terminal device 420b, terminal device 420c, terminal device 420d, terminal device 420e, and terminal device 420f), wherein the network device 410 is communicatively connected to the terminal devices 420a-420f respectively, and the network device 410 can send data to the terminal devices 420a-420f and can also receive data from the terminal devices 420a-420f.

[0131] As shown in FIG4 , terminal devices can also be communicatively connected to each other. For example, terminal device 420d, terminal device 420e, and terminal device 420f can also form a network architecture 401, wherein terminal device 420d is communicatively connected to terminal device 420e and terminal device 420f, respectively. Terminal device 420d can send data to terminal device 420e and terminal device 420f, and can also receive data from terminal device 420e and terminal device 420f. For example, in a smart home scenario, a smart home terminal device can send control instructions to other smart home terminal devices, and other smart home terminal devices can perform response operations or feedback status information after receiving the control instructions. For another example, in a vehicle networking scenario, a vehicle-mounted terminal device can send data to other vehicle-mounted terminal devices, and can also receive data from other vehicle-mounted terminal devices.

[0132] Optionally, the network architecture may further include other devices, for example, a relay node may be included between the network device and the terminal device, which is not shown in FIG4 . The relay node may be in the form of a network device or a terminal device.

[0133] The network devices in the embodiments of the present application may include, but are not limited to, base stations, next generation Node Bs (gNBs), evolved Node Bs (eNBs), radio network controllers (RNCs), Node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home evolved Node Bs (HeNBs or HNBs), base band units (BBUs), servers, wearable devices, vehicle-mounted devices, access points (APs) in wireless fidelity (WIFI) systems, wireless relay nodes, wireless backhaul nodes, transmission points (TPs) or transmission and reception points (TRPs), and may also be 5G, such as gNBs, TRPs or TPs in new radio (NR) systems, one or a group of antenna panels of a base station in a 5G system, or network nodes constituting gNBs or TPs, such as baseband units or distributed units (DPUs). The base station may be a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station. The base station may be a terrestrial base station or a non-terrestrial base station, such as a low earth orbit (LEO) / very low earth orbit (VLEO) satellite, an unmanned aerial vehicle (UAV), or other high altitude platform station (HAPS).

[0134] In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some gNB functions, while the DU implements some gNB functions. For example, the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, implementing the functions of the radio link control (RLC), media access control (MAC), and physical (PHY) layers. The AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. RRC layer information is generated by the CU and ultimately encapsulated by the DU's PHY layer into PHY layer information, or is converted from PHY layer information. Therefore, in this architecture, higher-layer signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by a combination of the DU and the AAU. It is understood that the network device may include one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be classified as a network device in an access network (RAN) or a network device in a core network (CN), which is not limited in the present embodiment.

[0135] A terminal device is a device with wireless communication capabilities, and may also be referred to as: terminal, terminal device, access terminal, user unit, user equipment (UE), user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a train, an airplane, a mobile internet device (MID), a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control (such as a robot, etc.), a wireless terminal in the Internet of Vehicles (such as an on-board device, a whole vehicle device, an on-board module, a vehicle, etc.), a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, an on-board device, a wearable device, etc. The terminal device may be an active terminal device, an inactive terminal device or an idle terminal device, or a terminal device that is not in any of the above three states, such as a terminal device that is not attached to a network or is not performing downlink synchronization with a network. The embodiments of the present application do not limit the specific technology and specific device form used by the terminal device.

[0136] Network devices and terminal devices can be fixed or mobile. For example, network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of network devices and terminal devices.

[0137] Network devices and terminal devices, and terminal devices and terminal devices can communicate through licensed spectrum, through unlicensed spectrum, or through both licensed and unlicensed spectrum. This communication can be applied to high-frequency scenarios, such as millimeter wave and terahertz (THz) bands, and can also be applied to low-frequency scenarios below 6 GHz (Sub-6G), such as 700 / 900 MHz, 2.1 / 2.6 / 3.5 GHz bands, etc. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0138] The network architecture shown in Figure 4 (for example, network architecture 400 or network architecture 401) is applicable to the method for releasing the dynamic authorization-free transmission configuration provided in the embodiment of the present application. The method for releasing the dynamic authorization-free transmission configuration provided in the embodiment of the present application can be used in the air interface link dynamic authorization-free transmission scenario between the terminal device (for example, any terminal device among terminal devices 420a-420f) and the network device (for example, network device 410), such as the transmission scenario based on Type 1CG, Type 2CG, SPS or preconfigured uplink resource (preconfigured uplink resource, PUR), and can also be used in the side link dynamic authorization-free transmission scenario between the terminal device (for example, terminal device 420d) and the terminal device (for example, terminal device 420e or terminal device 420f).

[0139] It should be understood that the network architecture shown in Figure 4 is only an example, and the network architecture applicable to the embodiments of the present application is not limited to this. Any network architecture that can realize the functions of some or all of the above-mentioned devices is applicable to the embodiments of the present application.

[0140] The following describes the method for releasing the dynamic authorization-free transmission configuration provided in the embodiment of the present application.

[0141] Please refer to Figure 5, which is a flowchart of a method for releasing a dynamic authorization-free transmission configuration provided in an embodiment of the present application. The embodiment shown in Figure 5 uses a terminal device (for distinction, denoted as a first terminal device) and a first device as an example of the execution subject of the interaction to illustrate the method.

[0142] In one possible embodiment, the first device is a network device, and the method can be used in an air interface link transmission scenario without dynamic authorization. For example, the first terminal device can be any terminal device among terminal devices 420a-420f in Figure 4, and the network device can be network device 410 in Figure 4.

[0143] In another possible embodiment, the first device is another terminal device (referred to as the second terminal device for distinction), and the method can be used in a sidelink dynamic authorization-free transmission scenario. For example, the first terminal device can be terminal device 420e or terminal device 420f in FIG. 4 , and the second terminal device can be terminal device 420d in FIG. 4 .

[0144] As shown in FIG5 , the method for releasing the dynamic authorization-free transmission configuration may include but is not limited to the following steps S501 to S503 .

[0145] S501, a first device determines control information, where the control information is used for retransmission and for releasing a first dynamic authorization-free transmission configuration.

[0146] Taking the first device as a network device as an example, the control information is downlink control information (DCI). During the transmission process between the first terminal device and the network device, when the network device fails to correctly receive the physical uplink shared channel (PUSCH) or the first terminal device fails to correctly receive the physical downlink shared channel (PDSCH), the network device can determine the DCI and record the DCI as a retransmission DCI. The retransmission DCI is used for retransmission, which specifically may refer to the network device instructing the first terminal device to retransmit PUSCH or receive PDSCH retransmission through the DCI. The initial transmission corresponding to the PDSCH or PUSCH can be a transmission based on dynamic scheduling (or dynamic authorization) or a transmission based on a dynamic authorization-free transmission configuration.

[0147] The DCI for retransmission may also include information for indicating that the DCI is used to release (or deactivate) the first dynamic authorization-free transmission configuration, so that the DCI for retransmission can be used to release the first dynamic authorization-free transmission configuration at the same time, for example, it can instruct the first terminal device to release (release) the transmission resources configured by the first dynamic authorization-free transmission configuration, or instruct the first terminal device to clear (clear) the authorization configured by the first dynamic authorization-free transmission configuration.

[0148] Taking the first device being the second terminal device as an example, the control information is sidelink control information (SCI). When the second terminal device fails to correctly receive the physical sidelink shared channel (PSSCH) or the first terminal device fails to correctly receive the PSSCH, the second terminal device can determine the SCI and record the SCI as a retransmission SCI. The retransmission SCI is used for retransmission, and specifically may refer to the second terminal device instructing the first terminal device to retransmit the PSSCH or receive the PSSCH retransmission through the SCI. The initial transmission corresponding to the PSSCH may be a transmission based on dynamic authorization (or dynamic scheduling) or a transmission based on a dynamic authorization-free transmission configuration.

[0149] The SCI used for retransmission may also include information for indicating that the SCI is used to release (or deactivate) the first dynamic authorization-free transmission configuration, so that the SCI used for retransmission can be used to release the first dynamic authorization-free transmission configuration at the same time, for example, it can instruct the first terminal device to release (release) the transmission resources configured by the first dynamic authorization-free transmission configuration, or instruct the first terminal device to clear (clear) the authorization configured by the first dynamic authorization-free transmission configuration.

[0150] S502: The first device sends control information to the first terminal device. Correspondingly, the first terminal device receives the control information from the first device.

[0151] Taking the first device being a network device as an example, the network device sends DCI to the first terminal device. After receiving the DCI, the first terminal device can determine that the DCI is used for retransmission and for releasing the first dynamic authorization-free transmission configuration.

[0152] Taking the first device being the second terminal device as an example, the second terminal device sends an SCI to the first terminal device. After receiving the SCI, the first terminal device may determine that the SCI is used for retransmission and for releasing the first dynamic authorization-free transmission configuration.

[0153] S503: The first terminal device releases the first dynamic authorization-free transmission configuration according to the control information.

[0154] One or more dynamic authorization-free transmission configurations may exist between the first terminal device and the first device. Different dynamic authorization-free transmission configurations may be used to meet different service requirements. Each dynamic authorization-free transmission configuration may be associated with one or more sets of configuration information. Different configuration information may include different transmission resources and / or transmission parameters to meet different transmission performance requirements. The above-mentioned dynamic authorization-free transmission configuration and configuration information may be pre-configured by the first device or pre-agreed upon by the first device and the first terminal device.

[0155] The first dynamic-free authorization transmission configuration can be understood as a dynamic-free authorization transmission configuration that needs to be released, that is, it is used to indicate which set or sets of dynamic-free authorization transmission configurations need to be released. For example, when there is only one set of dynamic-free authorization transmission configuration between the first terminal device and the first device, the first dynamic-free authorization transmission configuration can be that set of dynamic-free authorization transmission configuration; when there are multiple sets of dynamic-free authorization transmission configurations between the first terminal device and the first device, the first dynamic-free authorization transmission configuration can be at least one of the multiple sets of dynamic-free authorization transmission configurations.

[0156] After the first terminal device receives the control information from the first device and determines that the control information is used for retransmission and for releasing the first dynamic-free authorization transmission configuration, it can retransmit or receive retransmission according to the instructions of the control information (for example, retransmit PUSCH or receive PDSCH retransmission, or retransmit PSSCH or receive PSSCH retransmission), and can also release the first dynamic-free authorization transmission configuration according to the instructions of the control information (for example, release the transmission resources configured by the first dynamic-free authorization transmission configuration, or clear the authorization configured by the first dynamic-free authorization transmission configuration).

[0157] Through the above embodiment, the first device can add information for indicating that the control information is used to release (or deactivate) the dynamic authorization-free transmission configuration in the control information originally used for retransmission (such as DCI / SCI), so that the control information can simultaneously realize the retransmission scheduling function and the function of releasing the dynamic authorization-free transmission configuration. Accordingly, when the dynamic authorization-free transmission configuration between the first terminal device and the first device needs to be released, the first device can release the dynamic authorization-free transmission configuration by sending the control information to the first terminal device, without having to release the dynamic authorization-free transmission configuration by specifically sending RRC signaling or deactivating control information to the first terminal device, thereby saving overhead. In addition, DCI / SCI belongs to physical layer (or L1 layer) signaling, and RRC signaling belongs to high-layer signaling. The sending cycle of DCI / SCI is shorter than that of RRC signaling, thereby realizing the rapid release of the dynamic authorization-free transmission configuration. In addition, the first terminal device has natural feedback on DCI / SCI, so the first terminal device does not need to specifically confirm the release of the dynamic authorization-free transmission configuration, thereby further reducing terminal overhead and complexity.

[0158] In some possible implementations, the manner in which the control information is used to indicate retransmission may include, but is not limited to, the following manners:

[0159] In a first approach, the control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is used for retransmission.

[0160] The value of the first indication field in the control information can be used to indicate whether the control information is for retransmission. Exemplarily, when the value of the first indication field is a first value, it indicates that the control information is for retransmission; when the value of the first indication field is any value other than the first value, it indicates that the control information is not for retransmission.

[0161] After receiving the control information, the first terminal device may determine whether the control information is for retransmission based on the value of the first indicator field in the control information. Specifically, when the value of the first indicator field in the control information is a first value, the first terminal device may determine that the control information is for retransmission; when the value of the first indicator field in the control information is a value other than the first value, the first terminal device may determine that the control information is not for retransmission.

[0162] Optionally, the first indication field is a new data indicator (NDI) field, and the value of the NDI field in the control information is used to indicate whether the control information is used for retransmission. Exemplarily, when the value of the NDI field is 1, it indicates that the control information is used for retransmission; when the value of the NDI field is 0, it indicates that the control information is not used for retransmission.

[0163] Through the above implementation, the first value of the first indication field in the control information is used to indicate that the control information is for retransmission. Accordingly, the first terminal device can determine whether the control information is for retransmission according to the value of the first indication field.

[0164] Method 2: The control information includes a first indication field, and the value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is used for retransmission, wherein the last value is the value of the first indication field in the control information from the first device that the first terminal device last received.

[0165] Whether the value of the first indicator field is toggled relative to the previous value can be understood as whether the value of the first indicator field is the same as the previous value. Specifically, if the value of the first indicator field is not toggled relative to the previous value, it can be understood that the value of the first indicator field is the same as the previous value; if the value of the first indicator field is toggled relative to the previous value, it can be understood that the value of the first indicator field is different from the previous value.

[0166] Whether the value of the first indicator field in the control information is flipped relative to the previous value can be used to indicate whether the control information is for retransmission. For example, when the value of the first indicator field is not flipped relative to the previous value, it indicates that the control information is for retransmission; when the value of the first indicator field is flipped relative to the previous value, it indicates that the control information is not for retransmission.

[0167] After receiving the control information, the first terminal device may determine whether the control information is for retransmission based on whether the value of the first indicator field in the control information is flipped relative to the previous value. Specifically, when the value of the first indicator field in the control information is not flipped relative to the previous value, the first terminal device may determine that the control information is for retransmission; when the value of the first indicator field in the control information is flipped relative to the previous value, the first terminal device may determine that the control information is not for retransmission.

[0168] Optionally, the first indication field is a new data indicator (NDI) field, and whether the value of the NDI field in the control information is flipped relative to the previous value is used to indicate whether the control information is used for retransmission. Exemplarily, when the value of the NDI field is not flipped relative to the previous value, it indicates that the control information is used for retransmission; when the value of the NDI field is flipped relative to the previous value, it indicates that the control information is not used for retransmission.

[0169] Through the above implementation, the value of the first indication field in the control information is not flipped relative to the previous value to indicate that the control information is used for retransmission. Accordingly, the first terminal device can determine whether the control information is used for retransmission based on whether the value of the first indication field is flipped relative to the previous value.

[0170] In a third approach, the control information is scrambled by the first wireless network temporary identifier to indicate that the control information is for retransmission.

[0171] The control information may be scrambled using a specific radio network temporary identifier (RNTI), and the RNTI used to scramble the control information may be used to indicate whether the control information is for retransmission. Exemplarily, when the control information is scrambled by a first RNTI, it indicates that the control information is for retransmission; and when the control information is scrambled by an RNTI other than the first RNTI, it indicates that the control information is not for retransmission.

[0172] After receiving the control information, the first terminal device may determine whether the control information is for retransmission based on the RNTI used to scramble the control information. Specifically, when the control information is scrambled by the first RNTI, the first terminal device may determine that the control information is for retransmission; when the control information is scrambled by an RNTI other than the first RNTI, the first terminal device may determine that the control information is not for retransmission.

[0173] Through the above embodiment, the control information is scrambled by the first RNTI to indicate that the control information is for retransmission. Accordingly, the first terminal device can determine whether the control information is for retransmission according to the RNTI used to scramble the control information.

[0174] Mode 4: The control information is received through the first resource, and is used to indicate that the control information is used for retransmission.

[0175] The resources used by the first terminal device to detect or receive control information can be used to indicate whether the control information is used for retransmission. The resources here may include time domain resources and / or frequency domain resources, such as search space (SS), control resource set (CORESET), etc. Exemplarily, when the control information is detected or received through the first resource, it indicates that the control information is used for retransmission; when the control information is received through resources other than the first resource, it indicates that the control information is not used for retransmission.

[0176] After receiving the control information, the first terminal device may determine whether the control information is for retransmission based on the resource used to detect or receive the control information. Specifically, when the first terminal device detects or receives the control information on a first resource, the first terminal device may determine that the control information is for retransmission; when the first terminal device detects or receives the control information on a resource other than the first resource, the first terminal device may determine that the control information is not for retransmission.

[0177] Through the above-mentioned implementation manner, control information is received through the first resource to indicate that the control information is used for retransmission. Accordingly, the first terminal device can determine whether the control information is used for retransmission based on the resource used to detect or receive the control information, and there is no need to carry information specifically used to indicate whether the control information is used for retransmission in the control information, which is conducive to reducing indication overhead.

[0178] In some possible implementations, the control information may be used to indicate the release of the dynamic authorization-free transmission configuration in the following manners, but is not limited to:

[0179] In the first approach, the control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0180] The value of the second indication field in the control information can be used to indicate whether the control information is used to release the dynamic authorization-free transmission configuration. Exemplarily, when the value of the second indication field is the second value, it indicates that the control information is used to release the dynamic authorization-free transmission configuration; when the value of the second indication field is any value other than the second value, it indicates that the control information is not used to release the dynamic authorization-free transmission configuration.

[0181] After the first terminal device receives the control information and determines that the control information is for retransmission, it can determine whether the control information is also used to release the dynamic authorization-free transmission configuration based on the value of the second indicator field in the control information. Specifically, when the value of the second indicator field in the control information is the second value, the first terminal device can determine that the control information is used to release the dynamic authorization-free transmission configuration; when the value of the second indicator field in the control information is a value other than the second value, the first terminal device can determine that the control information is not used to release the dynamic authorization-free transmission configuration.

[0182] Optionally, the second indication field is a modulation coding scheme (MCS) field, and the value of the MCS field in the control information is used to indicate whether the control information is used to release the dynamic authorization-free transmission configuration. The value of the MCS field can be the value of some or all bits in the MCS field.

[0183] In one possible implementation, the values ​​of some bits in the MCS field, such as the value of the most significant bit (MSB), are used to indicate whether the control information is used to release the dynamic authorization-free transmission configuration. For example, when the value of the MSB in the MCS field is 0, it indicates that the control information is used to release the dynamic authorization-free transmission configuration; and when the value of the MSB in the MCS field is 1, it indicates that the control information is not used to release the dynamic authorization-free transmission configuration.

[0184] In another possible implementation, the values ​​of all bits in the MCS field are used to indicate whether the control information is used to release the dynamic authorization-free transmission configuration. Exemplarily, when the values ​​of all bits in the MCS field are specific values ​​(e.g., values ​​in the range of 0 to 27), the control information is indicated to release the dynamic authorization-free transmission configuration; and when the values ​​of all bits in the MCS field are other than the specific value (e.g., values ​​in the range of 28 to 31), the control information is indicated not to release the dynamic authorization-free transmission configuration.

[0185] Optionally, the second indication field may also be other indication fields, such as a new data indicator (NDI) or a redundancy version (RV) field.

[0186] Through the above implementation, the second value of the second indication field in the control information is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information is used to release the dynamic authorization-free transmission configuration based on the value of the second indication field.

[0187] In the second method, the control information is scrambled by the second wireless network temporary identifier, so as to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0188] The control information may be scrambled using a specific RNTI, and the RNTI used to scramble the control information may be used to indicate whether the control information is used to release the dynamic authorization-free transmission configuration. Exemplarily, when the control information is scrambled using a second RNTI, it indicates that the control information is used to release the dynamic authorization-free transmission configuration; and when the control information is scrambled using an RNTI other than the second RNTI, it indicates that the control information is not used to release the dynamic authorization-free transmission configuration.

[0189] After receiving the control information, the first terminal device can determine whether the control information is used to release the dynamic authorization-free transmission configuration based on the RNTI that scrambled the control information. Specifically, when the control information is scrambled by the second RNTI, the first terminal device can determine that the control information is used to release the dynamic authorization-free transmission configuration; when the control information is scrambled by an RNTI other than the second RNTI, the first terminal device can determine that the control information is not used to release the dynamic authorization-free transmission configuration.

[0190] Through the above implementation, the control information is encrypted by the second RNTI to indicate that the control information is used to release the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information is used to release the dynamic authorization-free transmission configuration based on the RNTI that scrambled the control information.

[0191] Mode three: the control information is received through the second resource, and is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0192] The resources used by the first terminal device to detect or receive the control information can be used to indicate whether the control information is used to release the dynamic authorization-free transmission configuration. The resources here may include time domain resources and / or frequency domain resources, such as search space (SS), control resource set (CORESET), etc. Exemplarily, when the control information is detected or received through the second resource, it indicates that the control information is used to release the dynamic authorization-free transmission configuration; when the control information is received through other resources other than the second resource, it indicates that the control information is not used to release the dynamic authorization-free transmission configuration.

[0193] After receiving the control information, the first terminal device may determine whether the control information is used to release the dynamic authorization-free transmission configuration based on the resource used to detect or receive the control information. Specifically, when the first terminal device detects or receives the control information on the second resource, the first terminal device may determine that the control information is used to release the dynamic authorization-free transmission configuration; when the first terminal device detects or receives the control information on a resource other than the second resource, the first terminal device may determine that the control information is not used to release the dynamic authorization-free transmission configuration.

[0194] Through the above-mentioned implementation mode, control information is received through the second resource to indicate that the control information is used to release the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information is used to release the dynamic authorization-free transmission configuration based on the resources used to detect or receive the control information, and there is no need to carry information specifically used to indicate whether the control information is used to release the dynamic authorization-free transmission configuration in the control information, which is conducive to reducing the indication overhead.

[0195] Based on the above description, different information in the control information can be used to respectively indicate that the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization. For example, the first value of the first indication field in the control information, or the value of the first indication field in the control information has not been reversed relative to the previous value, or the control information is scrambled by the first wireless network temporary identifier, or the control information is received through the first resource, is used to indicate that the control information is used for retransmission; the second value of the second indication field in the control information is used to release the transmission configuration without dynamic authorization. For another example, the first value of the first indication field in the control information, or the value of the first indication field in the control information has not been reversed relative to the previous value, is used to indicate that the control information is used for retransmission; the second value of the second indication field in the control information, or the control information is scrambled by the second wireless network temporary identifier, or the control information is received through the second resource, is used to release the transmission configuration without dynamic authorization.

[0196] In addition, in other possible implementations, the same information associated with the control information can also be used to simultaneously indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration. Optionally, the indication method for the control information for retransmission and for releasing the dynamic authorization-free transmission configuration may include but is not limited to the following methods:

[0197] In the first approach, the control information is scrambled by the third wireless network temporary identifier, so as to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0198] The control information may be scrambled using a specific RNTI. The RNTI used to scramble the control information may be used to indicate whether the control information is used for retransmission and for releasing a transmission configuration without dynamic grant. Exemplarily, when the control information is scrambled using a third RNTI, it indicates that the control information is used for retransmission and for releasing a transmission configuration without dynamic grant; and when the control information is scrambled using an RNTI other than the third RNTI, it indicates that the control information is not used for retransmission or for releasing a transmission configuration without dynamic grant.

[0199] After receiving the control information, the first terminal device can determine whether the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization based on the RNTI that scrambled the control information. Specifically, when the control information is scrambled by a third RNTI, the first terminal device can determine that the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization; when the control information is scrambled by an RNTI other than the third RNTI, the first terminal device can determine that the control information is neither used for retransmission nor for releasing the transmission configuration without dynamic authorization.

[0200] Through the above implementation, the control information is encrypted by the third RNTI to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration based on the RNTI that scrambled the control information.

[0201] In the second method, the control information is received through a third resource, and is used to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0202] The resources used by the first terminal device to detect or receive control information can be used to indicate whether the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration. The resources here may include time domain resources and / or frequency domain resources, such as search space (SS), control resource set (CORESET), etc. Exemplarily, when the control information is detected or received through a third resource, it indicates that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration; when the control information is received through other resources other than the third resource, it indicates that the control information is not used for retransmission or for releasing the dynamic authorization-free transmission configuration.

[0203] After receiving the control information, the first terminal device may determine whether the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration based on the resource used to detect or receive the control information. Specifically, when the first terminal device detects or receives the control information on a third resource, the first terminal device may determine that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration; when the first terminal device detects or receives the control information on a resource other than the third resource, the first terminal device may determine that the control information is not used for retransmission or for releasing the dynamic authorization-free transmission configuration.

[0204] Through the above-mentioned implementation mode, control information is received through a third resource to indicate that the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization. Accordingly, the first terminal device can determine whether the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization based on the resources used to detect or receive the control information, and there is no need to carry information specifically used to indicate whether the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization in the control information, which is beneficial to reducing the indication overhead.

[0205] In some possible implementations, the control information may also be used to configure a second dynamic grant-free transmission configuration. That is, the control information may be used for both retransmission and configuration of the second dynamic grant-free transmission configuration, or the control information may be used for both retransmission, release of the first dynamic grant-free transmission configuration, and configuration of the second dynamic grant-free transmission configuration.

[0206] The control information is used to configure the dynamic authorization-free transmission configuration, which can be understood as the control information being used to configure, or reconfigure, or activate, or reactivate the dynamic authorization-free transmission configuration.

[0207] In some possible implementations, the indication field in the control information can be used to indicate that the control information is used to configure (or reconfigure / activate / reactivate) a dynamic authorization-free transmission configuration, the wireless network temporary identifier of the scrambled control information can be used to indicate that the control information is used to configure (or reconfigure / activate / reactivate) a dynamic authorization-free transmission configuration, or the resource for detecting or receiving the control information can be used to indicate that the control information is used to configure (or reconfigure / activate / reactivate) a dynamic authorization-free transmission configuration. The specific description of the above-mentioned indication method can refer to the relevant description in the previous embodiment and will not be repeated here.

[0208] For example, the following is an example of an indication method of control information (taking DCI as an example) used for retransmission and for releasing dynamic grant-free transmission configuration:

[0209] In this example, when the DCI is scrambled by the configured scheduling (CS) RNTI (denoted as CS-RNTI) and the value of the NDI field in the DCI is 1, it indicates that the DCI is used for retransmission. The value of 1 MSB of the MCS field in the DCI is used to indicate one or more of the following functions: the DCI is used to release the dynamic authorization-free transmission configuration, or the DCI is not used to release the dynamic authorization-free transmission configuration. Specifically, when the value of 1 MSB of the MCS field in the DCI is 1, it indicates that the DCI is not used to release the dynamic authorization-free transmission configuration; when the value of 1 MSB of the MCS field in the DCI is 0, it indicates that the DCI is used to release the dynamic authorization-free transmission configuration.

[0210] For another example, the following is an example of an indication method of control information (taking DCI as an example) for retransmission and for configuring (or reconfiguring / activating / reactivating) dynamic grant-free transmission configuration:

[0211] In this example, when the DCI is scrambled by the CS-RNTI and the value of the NDI field in the DCI is 1, it indicates that the DCI is used for retransmission. The value of 1 MSB of the MCS field in the DCI is used to indicate one or more of the following functions: the DCI is used to configure (or reconfigure / activate / reactivate) a dynamic authorization-free transmission configuration, or the DCI is not used to configure (or reconfigure / activate / reactivate) a dynamic authorization-free transmission configuration. Specifically, when the value of 1 MSB of the MCS field in the DCI is 1, it indicates that the DCI is not used to configure (or reconfigure / activate / reactivate) a dynamic authorization-free transmission configuration; when the value of 1 MSB of the MCS field in the DCI is 0, it indicates that the DCI is used to configure (or reconfigure / activate / reactivate) a dynamic authorization-free transmission configuration.

[0212] For another example, the following is an example of an indication method of control information (taking DCI as an example) for retransmission and for releasing a dynamic grant-free transmission configuration (and / or for configuring (or reconfiguring / activating / reactivating) a dynamic grant-free transmission configuration):

[0213] In this example, when the DCI is scrambled by the CS-RNTI and the value of the NDI field in the DCI is 1, it indicates that the DCI is for retransmission. The values ​​of the two MSBs of the MCS field in the DCI are used to indicate one or more of the following functions: the DCI is used to release the dynamic grant-free transmission configuration, the DCI is used to configure (or reconfigure / activate / reactivate) the dynamic grant-free transmission configuration, the DCI is used to release the dynamic grant-free transmission configuration and to configure (or reconfigure / activate / reactivate) the dynamic grant-free transmission configuration, or the DCI is neither used to release the dynamic grant-free transmission configuration nor to configure (or reconfigure / activate / reactivate) the dynamic grant-free transmission configuration. Specifically, when the value of the 2 MSBs of the MCS domain in the DCI is 00, it indicates that the DCI is not used to release the dynamic authorization-free transmission configuration or to configure (or reconfigure / activate / reactivate) the dynamic authorization-free transmission configuration; when the value of the 2 MSBs of the MCS domain in the DCI is 11, it indicates that the DCI is used to release the dynamic authorization-free transmission configuration; when the value of the 2 MSBs of the MCS domain in the DCI is 01, it indicates that the DCI is used to configure (or reconfigure / activate / reactivate) the dynamic authorization-free transmission configuration; when the value of the 2 MSBs of the MCS domain in the DCI is 10, it indicates that the DCI is used to release the first dynamic authorization-free transmission configuration and to configure (or reconfigure / activate / reactivate) the second dynamic authorization-free transmission configuration.

[0214] In some possible implementations, before determining that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration, the first terminal device may further determine whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration, that is, first determine whether the control information has the function of being used for both retransmission and for releasing the dynamic authorization-free transmission configuration. Optionally, the manner in which the first terminal device determines whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration may include, but is not limited to, the following manners:

[0215] In a first embodiment, a first device sends first information to a first terminal device. In response, the first terminal device receives the first information from the first device. The first information indicates whether to enable control information for retransmission and for releasing a dynamic authorization-free transmission configuration. The first terminal device determines whether to enable control information for retransmission and for releasing a dynamic authorization-free transmission configuration based on the first information.

[0216] The first information can be understood as a function switch, and different values ​​of the first information can indicate different states of the function switch (on state or off state). The function switch is used to turn on or off the function of using the control information for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time. Specifically, when the function switch is in the on state, the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time, or in other words, the control information used for retransmission can / is allowed to be used for releasing the dynamic authorization-free transmission configuration; when the function switch is in the off state, the control information cannot / is not allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time, or in other words, the control information used for retransmission cannot / is not allowed to be used for releasing the dynamic authorization-free transmission configuration.

[0217] For example, when the first information is a first value, it indicates that the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration (that is, the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time). For another example, when the first information is a second value, it indicates that the control information is not enabled for retransmission and for releasing the dynamic authorization-free transmission configuration (that is, the control information cannot / is not allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time). The second value is different from the first value.

[0218] Accordingly, after receiving the first information, the first terminal device can determine, based on the first information, whether to enable the control information for retransmission and for releasing the dynamic authorization-free transmission configuration, that is, whether the control information can / is allowed to be used for both retransmission and for releasing the dynamic authorization-free transmission configuration, and then interpret the control information accordingly. In other words, the first information can also be understood as instructing the first terminal device on how to interpret the control information.

[0219] For example, when the first information is a first value, the first terminal device determines that the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time, and accordingly interprets the control information in a first manner to determine whether the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time. For another example, when the first information is a second value, the first terminal device determines that the control information cannot / is not allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time, and accordingly interprets the control information in a second manner to determine whether the control information is used for retransmission, without determining whether the control information is used for releasing the dynamic authorization-free transmission configuration.

[0220] In one possible implementation, the first device may carry the first information in RRC signaling and send it to the first terminal device. For example, the first information may be configuration information of a certain high-level parameter, which, when the high-level parameter is configured to a first value, indicates that the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration; and when the high-level parameter is configured to a second value, indicates that the control information is not enabled for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0221] Through the above implementation, the value of the first information is used to indicate whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time based on the value of the first information.

[0222] In a second method, the first device sends first information to the first terminal device, where the first information is used to indicate whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration. The first terminal device determines whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration based on whether the first information is received, that is, determines whether the control information can / is allowed to be used for both retransmission and for releasing the dynamic authorization-free transmission configuration, and then interprets the control information accordingly.

[0223] For example, when the first terminal device receives the first information, the first terminal device determines that the control information can / is allowed to be used for retransmission and for releasing the transmission configuration without dynamic authorization at the same time, and accordingly interprets the control information in a first manner to determine whether the control information is used for retransmission and for releasing the transmission configuration without dynamic authorization at the same time. For another example, when the first terminal device does not receive the first information, the first terminal device determines that the control information cannot / is not allowed to be used for retransmission and for releasing the transmission configuration without dynamic authorization at the same time, and accordingly interprets the control information in a second manner to determine whether the control information is used for retransmission, without determining whether the control information is used for releasing the transmission configuration without dynamic authorization.

[0224] In one possible implementation, the first device may carry the first information in RRC signaling and send it to the first terminal device. For example, the first information may be configuration information of a certain high-level parameter, which, when the high-level parameter is configured, indicates enabling control information for retransmission and for releasing a dynamic authorization-free transmission configuration; and, when the high-level parameter is not configured, indicates disabling control information for retransmission and for releasing a dynamic authorization-free transmission configuration.

[0225] Through the above-mentioned implementation manner, whether the first information is received is used to indicate whether the control information is enabled for retransmission and for releasing the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information can / is allowed to be used for retransmission and for releasing the dynamic authorization-free transmission configuration at the same time based on whether the first information is received.

[0226] In some possible implementations, before determining that the control information is used for retransmission and for configuring (or reconfiguring / activating / reactivating) the dynamic authorization-free transmission configuration, the first terminal device may also first determine whether the control information is enabled for retransmission and for configuring the dynamic authorization-free transmission configuration, that is, first determine whether the control information has the function of being used for retransmission and for configuring the dynamic authorization-free transmission configuration at the same time. Optionally, the manner in which the first terminal device determines whether the control information is enabled for retransmission and for configuring the dynamic authorization-free transmission configuration may include, but is not limited to, the following manners:

[0227] In method 1, a first device sends second information to a first terminal device, and the first terminal device receives the second information from the first device. The second information indicates whether to enable control information for retransmission and for configuring a transmission configuration without dynamic authorization. The first terminal device determines whether to enable control information for retransmission and for configuring a transmission configuration without dynamic authorization based on the second information.

[0228] The second information can be understood as a function switch, and different values ​​of the second information can indicate different states of the function switch (on state or off state). The function switch is used to turn on or off the function of using the control information for both retransmission and configuration of the dynamic authorization-free transmission configuration. Specifically, when the function switch is on, the control information can / is allowed to be used for both retransmission and configuration of the dynamic authorization-free transmission configuration, or in other words, the control information used for retransmission can / is allowed to be used for configuration of the dynamic authorization-free transmission configuration; when the function switch is off, the control information cannot / is not allowed to be used for both retransmission and configuration of the dynamic authorization-free transmission configuration, or in other words, the control information used for retransmission cannot / is not allowed to be used for configuration of the dynamic authorization-free transmission configuration.

[0229] For example, when the second information is a first value, it indicates that the control information is enabled for retransmission and for configuring a dynamic authorization-free transmission configuration (that is, the control information can / is allowed to be used for retransmission and for configuring a dynamic authorization-free transmission configuration at the same time). For another example, when the second information is a second value, it indicates that the control information is not enabled for retransmission and for configuring a dynamic authorization-free transmission configuration (that is, the control information cannot / is not allowed to be used for retransmission and for configuring a dynamic authorization-free transmission configuration at the same time). The second value is different from the first value.

[0230] Accordingly, after receiving the second information, the first terminal device can determine, based on the second information, whether to enable the control information for retransmission and for configuring a transmission configuration without dynamic authorization, that is, whether the control information can / is permitted to be used for both retransmission and for configuring a transmission configuration without dynamic authorization, and then interpret the control information accordingly. In other words, the second information can also be understood as instructing the first terminal device on how to interpret the control information.

[0231] For example, when the second information is a first value, the first terminal device determines that the control information can / is allowed to be used for retransmission and for configuring a dynamic authorization-free transmission configuration at the same time, and accordingly interprets the control information in accordance with the first manner to determine whether the control information is used for retransmission and for configuring a dynamic authorization-free transmission configuration at the same time. For another example, when the second information is a second value, the first terminal device determines that the control information cannot / is not allowed to be used for retransmission and for configuring a dynamic authorization-free transmission configuration at the same time, and accordingly interprets the control information in accordance with the second manner to determine whether the control information is used for retransmission, without determining whether the control information is used to configure a dynamic authorization-free transmission configuration.

[0232] In one possible implementation, the first device may carry the second information in RRC signaling and send it to the first terminal device. For example, the second information may be configuration information of a certain higher-level parameter, which, when the higher-level parameter is configured to a first value, indicates that the control information is enabled for retransmission and for configuring a dynamic authorization-free transmission configuration; and, when the higher-level parameter is configured to a second value, indicates that the control information is not enabled for retransmission and for configuring a dynamic authorization-free transmission configuration.

[0233] Through the above implementation, the value of the second information is used to indicate whether the control information is enabled for retransmission and for configuring the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information can / is allowed to be used for retransmission and for configuring the dynamic authorization-free transmission configuration at the same time according to the value of the second information.

[0234] In a second method, the first device sends second information to the first terminal device, where the second information is used to indicate whether the control information is enabled for retransmission and for configuring a transmission configuration without dynamic authorization. The first terminal device determines whether the control information is enabled for retransmission and for configuring a transmission configuration without dynamic authorization based on whether the second information is received. In other words, it determines whether the control information can be / is allowed to be used for both retransmission and for configuring a transmission configuration without dynamic authorization, and then interprets the control information accordingly.

[0235] For example, when the first terminal device receives the second information, the first terminal device determines that the control information can / is allowed to be used for retransmission and for configuring the dynamic authorization-free transmission configuration at the same time, and accordingly interprets the control information in the first manner to determine whether the control information is used for retransmission and for configuring the dynamic authorization-free transmission configuration at the same time. For another example, when the first terminal device does not receive the second information, the first terminal device determines that the control information cannot / is not allowed to be used for retransmission and for configuring the dynamic authorization-free transmission configuration at the same time, and accordingly interprets the control information in the second manner to determine whether the control information is used for retransmission, without determining whether the control information is used to configure the dynamic authorization-free transmission configuration.

[0236] In one possible implementation, the first device may carry the second information in RRC signaling and send it to the first terminal device. For example, the second information may be configuration information of a certain high-level parameter, which, when the high-level parameter is configured, indicates that the control information is enabled for retransmission and for configuring a dynamic authorization-free transmission configuration; and, when the high-level parameter is not configured, indicates that the control information is not enabled for retransmission and for configuring a dynamic authorization-free transmission configuration.

[0237] Through the above-mentioned embodiment, whether the second information is received is used to indicate whether the control information is enabled for retransmission and for configuring the dynamic authorization-free transmission configuration. Accordingly, the first terminal device can determine whether the control information can / is allowed to be used for retransmission and for configuring the dynamic authorization-free transmission configuration at the same time based on whether the second information is received.

[0238] In some possible implementations, the indication method of the first dynamic authorization-free transmission configuration may include but is not limited to the following method: the control information includes a third indication field, and the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

[0239] When there are multiple sets of dynamic authorization-free transmission configurations, the third indication field corresponds to the multiple sets of dynamic authorization-free transmission configurations, and different information in the third indication field can indicate different dynamic authorization-free transmission configurations. The first dynamic authorization-free transmission configuration (i.e., the dynamic authorization-free transmission configuration that needs to be released) is included in the multiple sets of dynamic authorization-free transmission configurations.

[0240] In a possible implementation, each of the multiple sets of dynamic authorization-free transmission configurations is associated with an index, and different information in the third indication field may correspond to different dynamic authorization-free transmission configuration indexes, thereby indicating different dynamic authorization-free transmission configurations.

[0241] Specifically, after receiving the control information and determining that the control information is used to release the dynamic authorization-free transmission configuration, the first terminal device can also determine the dynamic authorization-free transmission configuration index corresponding to the current information of the third indication field in the control information, and the mapping relationship between the information of the third indication field and the index of the dynamic authorization-free transmission configuration (in order to simplify the description, it is recorded as the first mapping relationship), and then determine the dynamic authorization-free transmission configuration associated with the dynamic authorization-free transmission configuration index as the first dynamic authorization-free transmission configuration. It should be understood that the above-mentioned first mapping relationship can be pre-configured by the first device or pre-agreed upon by the first device and the first terminal device.

[0242] Optionally, the third indication field is a hybrid automatic repeat request (HARQ) process field. The first mapping relationship may specifically be a mapping relationship between the HARQ process number indicated by the HARQ process field and the index of the dynamic grant-free transmission configuration. Different HARQ process numbers may correspond to different dynamic grant-free transmission configuration indexes, thereby indicating different dynamic grant-free transmission configurations.

[0243] For example, assuming that there are two sets of dynamic grant-free transmission configurations, whose indexes are 0 and 1, respectively, the indexes of the two sets of dynamic grant-free transmission configurations can be associated with the HARQ process numbers indicated by the HARQ process field. For example, the dynamic grant-free transmission configuration with an index of 0 is associated with HARQ process number 2, and the dynamic grant-free transmission configuration with an index of 1 is associated with HARQ process number 3. Then, when the HARQ process field indicates HARQ process number 2, the first dynamic grant-free transmission configuration is the dynamic grant-free transmission configuration with an index of 0, and when the HARQ process field indicates HARQ process number 3, the first dynamic grant-free transmission configuration is the dynamic grant-free transmission configuration with an index of 1.

[0244] Optionally, the third indication field may also be any one of the indication fields in the MCS field, the RV field, or the NDI field, or a combination of any multiple indication fields. Specifically, one or more numbers may be pre-configured by the first device or pre-agreed upon by the first device and the first terminal device, each number being associated with one or more sets of dynamic authorization-free transmission configurations. The third indication field may indicate a number, and the first dynamic authorization-free transmission configuration is the dynamic authorization-free transmission configuration associated with the number indicated by the third indication field.

[0245] Through the above-mentioned implementation, when there are multiple sets of dynamic authorization-free transmission configurations, the third indication field in the control information is used to indicate the first dynamic authorization-free transmission configuration that needs to be released. Based on this, the terminal device can determine which set or sets of the multiple sets of dynamic authorization-free transmission configurations need to be released according to the third indication field.

[0246] In some possible implementations, the control information may indicate a modulation order of the current retransmission. The manner in which the control information is used to indicate the modulation order of the current retransmission may include, but is not limited to, the following manners:

[0247] In the first approach, the control information includes a fourth indication field, and the fourth indication field is used to indicate a modulation order of the current retransmission.

[0248] Specifically, multiple modulation orders can be pre-configured by the first device or pre-agreed upon by the first device and the first terminal device, as well as a mapping relationship between the values ​​of the fourth indication field and the multiple modulation orders (recorded as the second mapping relationship for the sake of simplicity of description), and different values ​​of the fourth indication field can indicate different modulation orders.

[0249] After receiving the control information and determining that the control information is used for retransmission, the first terminal device can also obtain the modulation order corresponding to the value of the fourth indication field based on the value of the fourth indication field in the control information and the above-mentioned second mapping relationship, and then determine the modulation order corresponding to the value of the fourth indication field as the modulation order of the current retransmission.

[0250] Optionally, the fourth indication field is an MCS field, and the value of the MCS field in the control information is used to indicate the modulation order of the current retransmission. The value of the MCS field can be the value of some bits or all bits in the MCS field.

[0251] In a possible implementation, the values ​​of some bits in the MCS field, for example, the value of at least one least significant bit (LSB), are used to indicate the modulation order of the current retransmission.

[0252] For example, for retransmission, four modulation orders are pre-configured or pre-agreed, such as binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (16QAM), and 64 quadrature amplitude modulation (64QAM). The values ​​of the two LSBs in the MCS domain can be used to indicate these four modulation orders. For example, when the values ​​of the two LSBs in the MCS domain are 00, it indicates BPSK; when the values ​​of the two LSBs in the MCS domain are 01, it indicates QPSK; when the values ​​of the two LSBs in the MCS domain are 10, it indicates 16QAM; and when the values ​​of the two LSBs in the MCS domain are 11, it indicates 64QAM.

[0253] In another possible implementation, the values ​​of all bits in the MCS field are used to indicate the modulation order of the current retransmission.

[0254] For example, for retransmission, four modulation orders (e.g., BPSK, QPSK, 16QAM, and 64QAM) are pre-configured or pre-agreed. The values ​​of all bits in the MCS field can be used to indicate these four modulation orders. For example, when the values ​​of all bits in the MCS field are 0 to 6, BPSK is indicated; when the values ​​of all bits in the MCS field are 7 to 13, QPSK is indicated; when the values ​​of all bits in the MCS field are 14 to 20, 16QAM is indicated; and when the values ​​of all bits in the MCS field are 21 to 27, 64QAM is indicated.

[0255] Through the above implementation, the fourth indicator field in the control information is used to indicate the modulation order of the current retransmission. Accordingly, the first terminal device can determine the modulation order to be used for the current retransmission according to the value of the fourth indicator field.

[0256] In the second mode, the control information includes a fourth indication field, and the fourth indication field is used to indicate adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the last retransmission.

[0257] For example, when the first device fails to correctly receive the data sent by the first terminal device for the Nth time (for example, recorded as the first data), the first device may instruct the first terminal device to retransmit the first data, where N is a positive integer. In this example, the current retransmission refers to the process of the first terminal device sending the first data for the N+1th time, and the initial transmission refers to the process of the first terminal device sending the first data for the first time. It can be understood that when N is greater than 1, the last retransmission refers to the process of the first terminal device sending the first data for the Nth time; when N is equal to 1, there is no last retransmission. Among them, the initial transmission uses a dynamic authorization-free transmission method, and the last retransmission can use a dynamic authorization-free transmission method or a dynamic authorization transmission method.

[0258] Specifically, multiple modulation order adjustment information can be pre-configured by the first device or pre-agreed by the first device and the first terminal device, as well as a mapping relationship between the value of the fourth indication field and the multiple modulation order adjustment information (recorded as the third mapping relationship for the sake of simplicity of description), wherein the modulation order adjustment information refers to the adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the last retransmission, and different values ​​of the fourth indication field can indicate different modulation order adjustment information.

[0259] After receiving the control information and determining that the control information is used for retransmission, the first terminal device can also obtain the modulation order adjustment information corresponding to the value of the fourth indicator field based on the value of the fourth indicator field in the control information and the above-mentioned third mapping relationship, and then determine the modulation order of the current retransmission based on the modulation order adjustment information corresponding to the value of the fourth indicator field and the modulation order of the initial transmission or the previous retransmission.

[0260] Optionally, the fourth indication field is an MCS field, and the value of the MCS field in the control information is used to indicate the modulation order adjustment information. The value of the MCS field may be the value of some bits or all bits in the MCS field.

[0261] In a possible implementation, the modulation order adjustment information is indicated by using values ​​of some bits in the MCS field, for example, the value of at least one least significant bit (LSB).

[0262] For example, for retransmission, three types of modulation order adjustment information are pre-configured or pre-agreed (e.g., no adjustment, upward adjustment, and downward adjustment). The values ​​of the two LSBs in the MCS field can be used to indicate these three types of modulation order adjustment information. For example, when the values ​​of the two LSBs in the MCS field are 00, it indicates no adjustment; when the values ​​of the two LSBs in the MCS field are 01, it indicates upward adjustment; and when the values ​​of the two LSBs in the MCS field are 10, it indicates downward adjustment.

[0263] In addition, the modulation order adjustment granularity may be pre-configured or pre-agreed, and the adjustment granularity may be, but is not limited to, one level, two levels, etc. For example, the levels of BPSK, QPSK, 16QAM, and 64QAM are increased in sequence, i.e., QPSK is one level higher than BPSK, 16QAM is one level higher than QPSK, and 64QAM is one level higher than 16QAM.

[0264] Assuming that the adjustment granularity of the modulation order is one level, and the modulation order of the initial transmission or the last retransmission is QPSK, then when the value of the two LSBs in the above-mentioned MCS domain is 00, it indicates that the modulation order of the current retransmission is the same as the modulation order of the initial transmission or the last retransmission, that is, it indicates that the modulation order of the current retransmission is QPSK; when the value of the two LSBs in the above-mentioned MCS domain is 01, it indicates that the modulation order of the current retransmission is adjusted upward by one level based on the modulation order of the initial transmission or the last retransmission, that is, it indicates that the modulation order of the current retransmission is 16QAM; when the value of the two bits in the above-mentioned MCS domain is 10, it indicates that the current MCS value is adjusted downward by one level based on the previous MCS value, that is, it indicates that the modulation order of the current retransmission is BPSK.

[0265] Through the above-mentioned implementation mode, the fourth indicator field in the control information is used to indicate the adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission. Accordingly, the first terminal device can determine the adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission according to the value of the fourth indicator field, and then determine the modulation order to be used for the current retransmission.

[0266] The above describes in detail the method of the embodiment of the present application. The following describes the device embodiment involved in the embodiment of the present application.

[0267] Please refer to FIG6 , which is a structural diagram of a release device for dynamic authorization-free transmission configuration provided in an embodiment of the present application.

[0268] As shown in Figure 6, the dynamic authorization-free transmission configuration releasing device 600 may include a transceiver unit 601 and a processing unit 602. The transceiver unit 601 and the processing unit 602 may be software, hardware, or a combination of software and hardware.

[0269] The transceiver unit 601 can implement a sending function and / or a receiving function, and can also be described as a communication unit. The transceiver unit 601 can also be a unit that integrates an acquisition unit and a transmission unit, wherein the acquisition unit is used to implement the receiving function and the transmission unit is used to implement the transmission function. Optionally, the transceiver unit 601 can be used to receive information sent by other devices, and can also be used to send information to other devices.

[0270] In one possible design, the release device 600 for the dynamic authorization transmission configuration may correspond to the first terminal device in the above-mentioned method embodiment. For example, the release device 600 for the dynamic authorization transmission configuration may be the first terminal device in the method embodiment shown in FIG5 , or may be a chip in the first terminal device. The release device 600 for the dynamic authorization transmission configuration may include a unit for executing the operations performed by the first terminal device in the above-mentioned method embodiment, and each unit in the release device 600 for the dynamic authorization transmission configuration is respectively for implementing the operations performed by the first terminal device in the above-mentioned method embodiment. The description of each unit is as follows:

[0271] The transceiver unit 601 is configured to receive control information from the first device, where the control information is used for retransmission and for releasing the first dynamic authorization-free transmission configuration;

[0272] The processing unit 602 is configured to release the first dynamic authorization-free transmission configuration according to the control information.

[0273] In a possible implementation manner, the control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is used for retransmission; or,

[0274] The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last received from the first device.

[0275] In a possible implementation, the control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0276] In a possible implementation manner, the control information is scrambled by the first radio network temporary identifier, so as to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0277] In a possible implementation manner, the control information is received through a first resource, and is used to indicate that the control information is used for retransmission and for releasing a dynamic grant-free transmission configuration.

[0278] In a possible implementation manner, the control information includes a third indication field, where the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

[0279] In one possible implementation, the control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission.

[0280] In a possible implementation, the first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundant version RV field or a hybrid automatic repeat request HARQ process field.

[0281] In a possible implementation, the processing unit 602 is further configured to: determine, based on the first information from the first device, whether to enable the control information to be used for retransmission and for releasing the dynamic grant-free transmission configuration.

[0282] In a possible implementation, when the processing unit 602 determines, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration, it is specifically configured to:

[0283] When the first information is a first value, determining to enable the control information for retransmission and for releasing a dynamic grant-free transmission configuration;

[0284] When the first information is a second value, it is determined that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

[0285] In a possible implementation manner, when the processing unit 602 determines, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration, it is specifically configured to:

[0286] When the transceiver unit 601 receives the first information from the first device, it determines to enable the control information for retransmission and for releasing the dynamic authorization-free transmission configuration;

[0287] When the transceiver unit 601 does not receive the first information from the first device, it determines not to enable the control information to be used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0288] In another possible design, the release device 600 for the dynamic authorization-free transmission configuration may correspond to the first device (network device / second terminal device) in the above-mentioned method embodiment. For example, the release device 600 for the dynamic authorization-free transmission configuration may be the first device in the method embodiment shown in FIG5 , or may be a chip in the first device. The release device 600 for the dynamic authorization-free transmission configuration may include a unit for executing the operations performed by the first device in the above-mentioned method embodiment, and each unit in the release device 600 for the dynamic authorization-free transmission configuration is respectively for implementing the operations performed by the first device in the above-mentioned method embodiment. The description of each unit is as follows:

[0289] A processing unit 602 is configured to determine control information, wherein the control information is used for retransmission and for releasing the first dynamic grant-free transmission configuration;

[0290] The transceiver unit 601 is configured to send the control information to the terminal device.

[0291] In a possible implementation manner, the control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is used for retransmission; or,

[0292] The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last sent to the terminal device.

[0293] In a possible implementation, the control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

[0294] In a possible implementation manner, the control information is scrambled by the first radio network temporary identifier, so as to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0295] In a possible implementation manner, the control information is received through a first resource, and is used to indicate that the control information is used for retransmission and for releasing a dynamic grant-free transmission configuration.

[0296] In a possible implementation manner, the control information includes a third indication field, where the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

[0297] In one possible implementation, the control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the previous retransmission.

[0298] In a possible implementation, the first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundant version RV field or a hybrid automatic repeat request HARQ process field.

[0299] In a possible implementation, the transceiver unit 601 is further configured to: send first information to the terminal device, where the first information is used to indicate whether to enable the control information for retransmission and for releasing the dynamic authorization-free transmission configuration.

[0300] In a possible implementation manner, when the first information is a first value, it indicates enabling the control information for retransmission and for releasing a dynamic authorization-free transmission configuration;

[0301] When the first information is a second value, it indicates that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

[0302] According to an embodiment of the present application, each unit in the device shown in Figure 6 can be separately or all merged into one or several other units to constitute, or one (some) unit therein can also be split into multiple smaller units in function to constitute, which can achieve the same operation without affecting the realization of the technical effects of the embodiments of the present application. The above-mentioned units are divided based on logical functions. In practical applications, the functions of a unit can also be implemented by multiple units, or the functions of multiple units can be implemented by one unit. In other embodiments of the present application, other units can also be included based on electronic equipment. In practical applications, these functions can also be implemented with the assistance of other units, and can be implemented by collaboration of multiple units.

[0303] It should be noted that the implementation of each unit may also refer to the corresponding description of the above method embodiment.

[0304] Please refer to Figure 7, which is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device 700 may include a memory 701 and a processor 702. Further optionally, the electronic device 700 may also include a communication interface 703 and a bus 704. The memory 701, processor 702, and communication interface 703 are connected to each other via bus 704. The communication interface 703 is used to exchange data with other devices.

[0305] Memory 701 is used to provide storage space for storing data such as an operating system and computer programs. Memory 701 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM).

[0306] The processor 702 is a module that performs arithmetic and logical operations, and can be one or more combinations of processing modules such as a central processing unit (CPU), a graphics processing unit (GPU), or a microprocessor unit (MPU). The processor 702 can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0307] In one possible design, the electronic device 700 may correspond to the first terminal device in the above-mentioned method embodiment. For example, the electronic device 700 may be the first terminal device in the above-mentioned method embodiment, or may be a chip in the first terminal device. The electronic device 700 may include components for executing the operations performed by the first terminal device in the above-mentioned method embodiment. Furthermore, each component in the electronic device 700 may respectively implement the operations performed by the first terminal device in the above-mentioned method embodiment. The processor 702 calls the computer program stored in the memory 701 to execute the method shown in the above-mentioned method embodiment.

[0308] In another possible design, the electronic device 700 may correspond to the first device in the above method embodiment. For example, the electronic device 700 may be the first device in the above method embodiment, or may be a chip in the first device. The electronic device 700 may include components for executing the operations performed by the first device in the above method embodiment, and each component in the electronic device 700 may respectively implement the operations performed by the first device in the above method embodiment. The processor 702 calls the computer program stored in the memory 701 to execute the method shown in the above method embodiment.

[0309] In the case where the electronic device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in FIG8 .

[0310] As shown in Figure 8 , chip 800 includes a processor 801 and an interface 802. There may be one or more processors 801, and there may be multiple interfaces 802. It should be noted that the functions corresponding to processor 801 and interface 802 can be implemented through hardware design, software design, or a combination of hardware and software, without limitation.

[0311] Optionally, the chip 800 may further include a memory 803 , which is used to store necessary program instructions and data.

[0312] In the present application, processor 801 may be configured to call from memory 803 a program for implementing a method for releasing a dynamic authorization-free transmission configuration in an electronic device according to one or more embodiments of the present application, and execute the instructions contained in the program. Interface 802 may be configured to output the execution results of processor 801. In the present application, interface 802 may be specifically configured to output various messages or information from processor 801.

[0313] Regarding the method for releasing the dynamic authorization-free transmission configuration provided in one or more embodiments of the present application, reference can be made to the above-mentioned method embodiments, which will not be repeated here.

[0314] According to the method provided in the embodiment of the present application, the embodiment of the present application also provides a computer-readable storage medium, which stores a computer program or instruction. When the computer program or instruction runs on a processor, the method shown in the above method embodiment can be implemented.

[0315] According to the method provided in the embodiment of the present application, the embodiment of the present application also provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run on a processor, the method shown in the above method embodiment can be implemented.

[0316] According to the method provided in the embodiment of the present application, the embodiment of the present application also provides a system, which includes at least one of the above-mentioned release devices 600 or electronic devices 700 or chips 800 for dynamic authorization-free transmission configuration.

[0317] According to the method provided in an embodiment of the present application, an embodiment of the present application also provides a system, which includes a terminal device and a first device, wherein the terminal device is used to execute the steps performed by the first terminal device in the above method embodiment, and the first device is used to execute the steps performed by the first device in the above method embodiment.

[0318] It should be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a hard disk drive (HDD), a solid-state drive (SSD), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0319] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0320] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments provided herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0321] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0322] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0323] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0324] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0325] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the technology or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0326] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the scope of protection of the present application.

Claims

1. A method for releasing a dynamic authorization-free transmission configuration, characterized in that: include: receiving control information from the first device, the control information being used for retransmission and for releasing the first dynamic grant-free transmission configuration; The first dynamic authorization-free transmission configuration is released according to the control information.

2. The method according to claim 1, characterized in that The control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is for retransmission; or, The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last received from the first device.

3. The method according to claim 1 or 2, characterized in that The control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

4. The method according to claim 1, wherein The control information is scrambled by the first wireless network temporary identifier to indicate that the control information is used for retransmission and for releasing a dynamic authorization-free transmission configuration; or The control information is received through the first resource and is used to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

5. The method according to any one of claims 1 to 4, characterized in that The control information includes a third indication field, and the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

6. The method according to any one of claims 1 to 5, characterized in that The control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the last retransmission.

7. The method according to any one of claims 2 to 6, characterized in that The first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundancy version RV field or a hybrid automatic repeat request HARQ process field.

8. The method according to any one of claims 1 to 7, characterized in that The method further comprises: Determine whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration according to the first information from the first device.

9. The method according to claim 8, characterized in that The determining, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration includes: When the first information is a first value, determining to enable the control information for retransmission and for releasing a dynamic grant-free transmission configuration; When the first information is a second value, it is determined that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

10. The method according to claim 8, characterized in that The determining, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration includes: When receiving first information from the first device, determining to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration; When the first information from the first device is not received, it is determined not to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration.

11. A method for releasing a dynamic authorization-free transmission configuration, characterized in that: include: determining control information, where the control information is used for retransmission and for releasing the first dynamic grant-free transmission configuration; The control information is sent to the terminal device.

12. The method according to claim 11, characterized in that The control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is for retransmission; or, The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last sent to the terminal device.

13. The method according to claim 11 or 12, characterized in that The control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

14. The method according to claim 11, characterized in that The control information is scrambled by the first wireless network temporary identifier to indicate that the control information is used for retransmission and for releasing a dynamic authorization-free transmission configuration; or The control information is received through the first resource and is used to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

15. The method according to any one of claims 11 to 14, characterized in that The control information includes a third indication field, and the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

16. The method according to any one of claims 11 to 15, characterized in that The control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the last retransmission.

17. The method according to any one of claims 12 to 16, characterized in that The first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundancy version RV field or a hybrid automatic repeat request HARQ process field.

18. The method according to any one of claims 11 to 17, characterized in that The method further comprises: First information is sent to the terminal device, where the first information is used to indicate whether to enable the control information for retransmission and for releasing the dynamic authorization-free transmission configuration.

19. The method according to claim 18, characterized in that When the first information is a first value, it indicates enabling the control information for retransmission and for releasing the dynamic authorization-free transmission configuration; When the first information is a second value, it indicates that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

20. A device for releasing a dynamic authorization-free transmission configuration, characterized in that: include: a transceiver unit, configured to receive control information from the first device, wherein the control information is used for retransmission and for releasing the first dynamic authorization-free transmission configuration; A processing unit is configured to release the first dynamic authorization-free transmission configuration according to the control information.

21. The device according to claim 20, characterized in that The control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is for retransmission; or, The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last received from the first device.

22. The device according to claim 20 or 21, characterized in that The control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

23. The device according to claim 20, characterized in that The control information is scrambled by the first wireless network temporary identifier to indicate that the control information is used for retransmission and for releasing a dynamic authorization-free transmission configuration; or The control information is received through the first resource and is used to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

24. The device according to any one of claims 20 to 23, characterized in that The control information includes a third indication field, and the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

25. The device according to any one of claims 20 to 24, characterized in that The control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the last retransmission.

26. The device according to any one of claims 21 to 25, characterized in that The first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundancy version RV field or a hybrid automatic repeat request HARQ process field.

27. The device according to any one of claims 20 to 26, characterized in that The processing unit is further configured to determine, based on first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration.

28. The device according to claim 27, characterized in that When the processing unit determines, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration, the processing unit is specifically configured to: When the first information is a first value, determining to enable the control information for retransmission and for releasing a dynamic grant-free transmission configuration; When the first information is a second value, it is determined that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

29. The device according to claim 27, characterized in that When the processing unit determines, based on the first information from the first device, whether to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration, the processing unit is specifically configured to: When the transceiver unit receives the first information from the first device, determining to enable the control information for retransmission and for releasing the dynamic grant-free transmission configuration; When the transceiver unit does not receive the first information from the first device, it is determined not to enable the control information to be used for retransmission and for releasing the dynamic grant-free transmission configuration.

30. A device for releasing a dynamic authorization-free transmission configuration, characterized in that: include: a processing unit, configured to determine control information for retransmission and for releasing the first dynamic grant-free transmission configuration; The transceiver unit is configured to send the control information to the terminal device.

31. The device according to claim 30, characterized in that The control information includes a first indication field, and a first value of the first indication field is used to indicate that the control information is for retransmission; or, The value of the first indication field is not flipped relative to the last value and is used to indicate that the control information is for retransmission, wherein the last value is the value of the first indication field in the control information last sent to the terminal device.

32. The device according to claim 30 or 31, characterized in that The control information includes a second indication field, and a second value of the second indication field is used to indicate that the control information is used to release the dynamic authorization-free transmission configuration.

33. The device according to claim 30, characterized in that The control information is scrambled by the first wireless network temporary identifier to indicate that the control information is used for retransmission and for releasing a dynamic authorization-free transmission configuration; or The control information is received through the first resource and is used to indicate that the control information is used for retransmission and for releasing the dynamic authorization-free transmission configuration.

34. The device according to any one of claims 30 to 33, characterized in that The control information includes a third indication field, and the third indication field is used to indicate the first dynamic authorization-free transmission configuration.

35. The device according to any one of claims 30 to 34, characterized in that The control information includes a fourth indication field, and the fourth indication field is used to indicate the modulation order of the current retransmission, or adjustment information of the modulation order of the current retransmission relative to the modulation order of the initial transmission or the last retransmission.

36. The device according to any one of claims 31 to 35, characterized in that The first indication field, the second indication field, the third indication field or the fourth indication field includes one or more of the following: a new data indication NDI field, a modulation and coding scheme MCS field, a redundancy version RV field or a hybrid automatic repeat request HARQ process field.

37. The device according to any one of claims 30 to 36, characterized in that The transceiver unit is further configured to: First information is sent to the terminal device, where the first information is used to indicate whether to enable the control information for retransmission and for releasing the dynamic authorization-free transmission configuration.

38. The device according to claim 37, characterized in that When the first information is a first value, it indicates enabling the control information for retransmission and for releasing the dynamic authorization-free transmission configuration; When the first information is a second value, it indicates that the control information is not enabled for retransmission and for releasing the dynamic grant-free transmission configuration.

39. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed, the method according to any one of claims 1 to 10 or the method according to any one of claims 11 to 19 is implemented.

40. A computer program product, characterized in that The method comprises a computer program or an instruction, which, when executed, enables the method according to any one of claims 1 to 10 to be implemented, or the method according to any one of claims 11 to 19 to be implemented.

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