CN113647035B

CN113647035B - Data transmission method, device and system

Info

Publication number: CN113647035B
Application number: CN201980094958.2A
Authority: CN
Inventors: 付喆
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2023-07-25
Anticipated expiration: 2039-09-26
Also published as: WO2021056354A1; CN113647035A

Abstract

The application discloses a data transmission method, a device and a system, which relate to the field of wireless communication, and the method comprises the following steps: according to the first information, uplink transmission corresponding to the first logic channel is sent on uplink resources; the uplink resource includes a resource corresponding to an HARQ process with a hybrid automatic repeat request HARQ function in a disabled state, and the first logical channel includes a logical channel that allows transmission on the resource corresponding to the HARQ process in the disabled state. Because the uplink transmission corresponding to the first logic channel corresponding to the HARQ process in the disabling state is transmitted on the resource corresponding to the HARQ process in the disabling state according to the first information, the terminal can transmit the uplink transmission corresponding to the LCH on the proper uplink resource according to the corresponding relation between the LCH and the HARQ processes of different types, thereby ensuring the QoS requirements of different services.

Description

Data transmission method, device and system

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, to a data transmission method, apparatus, and system.

Background

The non-terrestrial communication network (Non Terrestrial Network, NTN) technology is a technology for providing communication services to terrestrial users by means of satellite communication, which has many advantages over terrestrial communication, for example, NTN technology can provide services for areas where terrestrial communication is difficult to cover without being limited by the region of the user, and for example, NTN technology has lower communication costs than terrestrial communication for mountainous regions, deserts, offshore regions, and the like.

Due to the many unique advantages of NTN technology, the third generation partnership project (Third Generation Partnership Project,3 GPP) has been engaged in research efforts to integrate satellite communications with terrestrial communications. In the process of merging satellite communication with terrestrial communication, the function or protocol of a New air interface (NR) of a fifth Generation mobile communication technology (5 th-Generation, 5G) applicable to terrestrial communication needs to be appropriately adjusted to adapt to NTN technology. For example, for NTN technology, a larger propagation delay may be caused, and HARQ process attribute is introduced in 3GPP to reduce data transmission delay by introducing HARQ process attribute that is disabled, in addition to the enabled state.

However, in the uplink transmission process, since different service data have different quality of service (Quality of Service, qoS), different QoS may use HARQ processes with different attributes, and different logical channels may have different QoS requirements, which may cause that the QoS requirements of different services are difficult to guarantee in the transmission process.

Disclosure of Invention

The embodiment of the application provides a data transmission method, a data transmission device and a data transmission system, which can be used for solving the problem that QoS requirements of different services are difficult to guarantee caused by related technologies. The technical scheme is as follows:

In one aspect, a data transmission method is provided, the method including:

according to the first information, uplink transmission corresponding to the first logic channel is sent on uplink resources;

the uplink resource includes a resource corresponding to an HARQ process with a hybrid automatic repeat request HARQ function in a disabled state, and the first logical channel includes a logical channel that allows transmission on the resource corresponding to the HARQ process in the disabled state.

In one aspect, a data transmission method is provided, the method including:

transmitting first information, wherein the first information is used for a terminal to transmit uplink transmission corresponding to a first logic channel on uplink resources;

In one aspect, there is provided a data transmission apparatus, the apparatus comprising:

the sending module is used for sending uplink transmission corresponding to the first logic channel on uplink resources according to the first information;

the sending module is used for sending first information, and the first information is used for indicating the terminal to send uplink transmission corresponding to the first logic channel on uplink resources;

In one aspect, a data transmission system is provided, the system includes a terminal and a network side device, the terminal includes the data transmission device provided in the previous aspect and capable of receiving first information, and the network side device includes the data transmission device provided in the previous aspect and capable of sending first information.

In one aspect, a terminal is provided, the terminal comprising a processor and a memory, the memory storing at least one instruction for execution by the processor to implement the data transmission method provided in the above aspect capable of receiving first information.

In one aspect, a network side device is provided, where the network side device includes a processor and a memory, where the memory stores at least one instruction, and the at least one instruction is used for being executed by the processor to implement the data transmission method provided in the above aspect and capable of sending first information.

In one aspect, a computer readable storage medium is provided, where at least one instruction is stored, where the at least one instruction is configured to be executed by a processor to implement the data transmission method provided in the above aspect capable of receiving the first information, or to implement the data transmission method provided in the above aspect capable of sending the first information.

In one aspect, a chip is provided, which includes programmable logic circuits and/or program instructions, and when the chip is run, is configured to implement the data transmission method provided in the above aspect capable of receiving first information, or is configured to implement the data transmission method provided in the above aspect capable of sending first information.

In an aspect, a computer program product is provided, which comprises one or more computer programs, which, when executed by a processor, are adapted to implement the data transmission method provided in the above aspect capable of receiving first information, or to implement the data transmission method provided in the above aspect capable of sending first information.

The beneficial effects that technical scheme that this application embodiment provided include at least:

the uplink transmission corresponding to the first logical channel corresponding to the HARQ process in the disabling state is sent on the resource corresponding to the HARQ process in the disabling state according to the first information, so that the terminal can send the uplink transmission corresponding to the LCH on the proper uplink resource according to the corresponding relation between the LCH and the HARQ processes of different types, thereby ensuring the QoS requirements of different services.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of one implementation environment provided by embodiments of the present application;

FIG. 2 is a flow chart of a method of data transmission provided in an exemplary embodiment of the present application;

FIG. 3 is a flow chart of a method of data transmission provided in an exemplary embodiment of the present application;

FIG. 4 is a schematic diagram of a data transmission method according to an exemplary embodiment of the present application;

FIG. 5 is a flow chart of a method of data transmission provided in an exemplary embodiment of the present application;

FIG. 6 is a schematic diagram of another data transmission method according to an exemplary embodiment of the present application;

FIG. 7 is a flowchart of a data transmission method provided in an exemplary embodiment of the present application;

FIG. 8 is a schematic diagram of yet another data transmission method according to an exemplary embodiment of the present application;

FIG. 9 is a flowchart of a method for data transmission provided in an exemplary embodiment of the present application;

fig. 10 is a block diagram of a data transmission device according to an embodiment of the present application;

fig. 11 is a block diagram of another data transmission device provided in an embodiment of the present application;

fig. 12 is a block diagram of still another data transmission apparatus provided in an embodiment of the present application;

fig. 13 is a block diagram of a data transmission device according to an embodiment of the present application;

Fig. 14 is a block diagram of a structure of a terminal according to an embodiment of the present application;

fig. 15 is a structural block diagram of a network side device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Currently, 3GPP is researching NTN technology, which generally provides communication services to terrestrial users by adopting a satellite communication manner. Satellite communications have many unique advantages over terrestrial communications (e.g., terrestrial cellular networks). First, satellite communications are not limited by the user region, for example, general land communications cannot cover areas where communication devices cannot be installed, such as the ocean, mountain, desert, etc., or areas where communication is not covered due to rarity of population, for satellite communications, since one satellite can cover a larger ground area, and the satellite can orbit around the earth, each corner on the earth can be theoretically covered by satellite communications. And secondly, satellite communication has great social value. Satellite communications can be covered at lower cost in remote mountainous areas, poor and behind countries or regions, so that people in these regions enjoy advanced voice communications and mobile internet technology, which is beneficial to reduce the digital gap between these regions and developed regions to promote the development of these regions. Again, the satellite communication distance is far, and as the communication distance increases, the communication cost does not increase significantly; and finally, the satellite communication has high stability and is not limited by natural disasters.

Communication satellites can be classified into: low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, geosynchronous Orbit (Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (High Elliptical Orbit, HEO) satellites, and the like. The LEO satellites and GEO satellites are mainly studied by the 3GPP at the present stage. Wherein the LEO satellites have an orbital altitude in the range of 500 kilometers (km) to 1500km, with a corresponding orbital period of about 1.5 hours to 2 hours. The signal propagation delay for single hop communications between users is typically less than 20 milliseconds (ms), with a maximum satellite visibility time of 20 minutes. The LEO satellite-based NTN technology has the characteristics of short signal propagation distance, less link loss and low requirement on the transmitting power of the user terminal. GEO satellites have an orbital altitude of 35786km and a period of 24 hours around earth rotation, with signal propagation delays of 250ms for single hop communications between users. In order to ensure the coverage area of the satellite on the earth and to increase the system capacity of the whole satellite communication system, the satellite covers the ground with multiple beams, that is, one satellite can form tens or even hundreds of satellite beams to cover the ground, wherein each satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

In the process of merging satellite communications with terrestrial communications, the function or protocol of the NR adapted for terrestrial communications needs to be appropriately adapted to accommodate the NTN technology. For example, the HARQ mechanism in the NR protocol for terrestrial communication needs to be adjusted to accommodate the convergence of satellite communication and terrestrial communication.

To facilitate understanding of the related description of the embodiments of the present application, the HARQ mechanism in the NR protocol is first briefly described herein:

two-stage retransmission mechanisms are defined in the NR protocol, HARQ mechanism of medium access control (Medium Access Control, MAC) layer and automatic repeat request (Automatic Repeat Request, ARQ) mechanism of radio link control (Radio Link Control, RLC) layer, respectively. The retransmission of lost or erroneous data is mainly processed by the HARQ mechanism of the MAC layer, and is supplemented by the retransmission function of the RLC layer. The HARQ mechanism of the MAC layer can provide fast data retransmission and the ARQ mechanism of the RLC layer can provide reliable data transmission.

The hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) mechanism uses Stop-and-Wait Protocol (also known as SQW Protocol) to send data. In the stop-and-wait protocol, the transmitting end stops waiting for acknowledgement information after transmitting a transport block (Transmission Block, TB), a process which may also be referred to as HARQ feedback. This causes the sender to stop waiting for acknowledgement after every TB sent, resulting in low user throughput. Therefore, in order to improve user throughput, NR uses multiple parallel HARQ processes to transmit a data block, and when one HARQ process waits for acknowledgement information, the transmitting end may use another HARQ process to continue transmitting the data block. The HARQ processes together form a HARQ entity that incorporates a de-equalization protocol that allows for continuous transmission of data blocks. The plurality of HARQ processes include an uplink HARQ process and a downlink HARQ process, the uplink HARQ process and the downlink HARQ process are independent of each other, the number of the uplink HARQ process and the downlink HARQ process may be the same, the uplink HARQ process is used for transmitting uplink data, and the downlink HARQ process is used for transmitting downlink data. The acknowledgement message includes an ACK and a NACK. If the acknowledgement is successful, the acknowledgement is ACK, and if the acknowledgement is failed, the acknowledgement is NACK.

The NR protocol suitable for terrestrial communication specifies that each serving cell corresponding to a terminal has a respective HARQ entity. Each HARQ entity is responsible for maintaining a parallel set of downlink HARQ processes and a parallel set of uplink HARQ processes. Currently each uplink and downlink carrier supports a maximum of 16 HARQ processes. The base station may indicate the maximum number of HARQ processes to the terminal through semi-static configuration of radio resource control (Radio Resource Control, RRC) signaling according to the network deployment situation. If the network does not provide the corresponding configuration parameters, the default maximum number of HARQ processes supported per downlink carrier is 8, while the maximum number of HARQ processes supported per uplink carrier is always 16. Each HARQ process corresponds to a HARQ process number (Identity or Identity, ID). For downlink transmission, the broadcast control channel (Broadcast Control Channel, BCCH) uses a dedicated broadcast HARQ process. For uplink transmission, the transmission third message Msg3 in the random process uses HARQ ID 0.

For a terminal which does not support downlink space division multiplexing, each downlink HARQ process can only process 1 TB at a time; for terminals supporting downlink space division multiplexing, 1 or 2 TBs may be processed at a time per downlink HARQ process. Each uplink HARQ process of the terminal processes 1 TB at a time. The HARQ scheme may be classified into a synchronous HARQ scheme and an asynchronous HARQ scheme in the time domain, and a non-adaptive HARQ scheme and an adaptive HARQ scheme in the frequency domain. The uplink and downlink transmission in the NR protocol uses an asynchronous self-adaptive HARQ mechanism, wherein the asynchronous HARQ mechanism refers to that the retransmission of the TB can occur at any moment, and the time interval between the retransmission and the last transmission of the same TB is not fixed; the adaptive HARQ mechanism refers to a scheme (Modulation and Coding Scheme, MCS) that can change the frequency domain resources and modulation and coding strategy used for retransmitting TBs.

Next, a brief description will be given of a semi-static resource configuration in the NR protocol:

to support periodic and substantially fixed traffic while reducing frequent physical downlink control channel (Physical Downlink Control Channel, PDCCH) scheduling overhead, NR may support semi-static resource allocation. The semi-static resource configuration refers to that the network side equipment allocates scheduling resources for the terminal through DCI carried by the PDCCH, and the terminal sends or receives service data according to the scheduling resources in each fixed period. Semi-persistent resource configurations may include Configuration Grant (CG) for Uplink (UL) and Semi-persistent scheduling (Semi-Persistent Scheduling, SPS) for Downlink (DL). For CG, two types, type1 (Type 1) and Type2 (Type 2), respectively, may be included, where Type1 CG is that when UE receives RRC configuration, user Equipment (UE) may use or configure, i.e. activate, type2 CG is that when UE receives RRC configuration, the UE saves the RRC configuration, and when DCI is subsequently received to indicate that CG is activated or deactivated, the CG resource may be activated (used) or deactivated (not used).

When configuring CG or SPS, the network side device simultaneously indicates the number of HARQ processes that can be used by the corresponding CG resource or SPS resource. The UE may calculate the HARQ process ID corresponding to the CG resource from the HARQ process data. For example, a variable defining a maximum number of 16 HARQ processes:

nrofHARQ-Processes INTEGER(1..16),

since the composite SPS or the composite CG is supported in R16, it may be configured in RRC accordingly, and HARQ process offset value (offset) may be indicated at the same time. The UE may calculate the HARQ process ID corresponding to the CG resource from the HARQ process data and the HARQ process offset.

Finally, a brief description will be given of the priority of a Logical Channel (LCH) in the NR protocol:

in NR, the network side equipment allocates uplink transmission resources based on UE (i.e. per-UE) instead of on bearer (i.e. per-bearer), and it is determined by UE based on which radio bearer data the UE refers to can be put into the allocated uplink transmission resources for transmission.

Based on the uplink transmission resources configured by the network side device, the UE needs to determine the transmission data amount of each logical channel in the primary MAC protocol data unit (Protocol Data Unit, PDU), and in some cases, the UE allocates resources for a MAC Control Element (CE). To achieve multiplexing of the uplink logical channels, each uplink logical channel needs to be assigned a priority. For a MAC PDU with a given size, under the condition that a plurality of uplink logic channels simultaneously have data transmission requirements, the resources of the MAC PDU are sequentially allocated according to the order from the large to the small of the logic channel priorities corresponding to the uplink logic channels. That is, in the existing logical channel priority (Logical Channel prioritization, LCP) rule, only the priority of LCH is considered, and the logical channel mapping is performed, thereby performing data transmission.

Specifically, for different signals and/or logical channels, the UE performs the logical channel priority processing according to the following priority order (in order of priority from high to low):

1) A cell radio network temporary identity (C-RNTI) MAC CE or data from an uplink common control channel (UL-CCCH);

2) Configuring an authorization acknowledgement (Configured Grant Confirmation) MAC CE;

3) BSR MAC CEs for use other than padding BSR;

4) Single Entry PHR (Single) MAC CE or multiple power headroom report (Multiple Entry PHR) MAC CE;

5) Data from any logical channel other than UL-CCCH;

6) A MAC CE for a recommended bit rate query (Recommended bit rate query);

7) BSR MAC CE for padding buffer status report (padding BSR).

In the current NTN system, there is a larger delay in wireless signal transmission between a terminal and a satellite, and introduction of a disabling HARQ function to reduce data transmission delay is being discussed in the process of standardization of NTN by 3GPP, and it is agreed that configuration of enabling or disabling the HARQ function can be performed based on HARQ processes, that is, for a plurality of HARQ processes of one terminal, HARQ functions of one part of HARQ processes can be configured to be in an enabled state, and HARQ functions of another part of HARQ processes are in a disabled state.

The HARQ function of a certain HARQ process is configured into a disable state, on one hand, the network can continue to schedule the HARQ process for data transmission without waiting for receiving the uplink transmission of the UE (for uplink HARQ, for downlink HARQ, the ACK/NACK feedback of the UE for downlink data transmission of the HARQ) so as to reduce MAC transmission delay; on the other hand, if the network does not schedule the HARQ process for retransmission, the MAC transmission reliability is affected.

Because different services have different QoS requirements, for example, some services are sensitive to delay, and some services have strict requirements on packet loss rate. For delay sensitive services, the HARQ process configured to be in a disabled state by the HARQ function can be used for transmission, so that the transmission delay is reduced; for the service with strict requirements on the packet loss rate, the HARQ process with the HARQ function configured to be in an enabled state can be used for transmission, so that the transmission reliability is improved.

For downlink transmission, when the network side equipment schedules resources, the network side equipment can allocate the logic channels with different QoS requirements to different HARQ processes for transmission according to the QoS requirements of different logic channels. For uplink transmission, the current UL resource allocation is only that the network side device allocates based on the UE, and does not indicate which logical channels can use the allocated resources for transmission. According to the existing LCP, when the UE performs LCP on the received UL, only priority is considered, and whether the resources correspond to the characteristic of enabling/disabling the HARQ function is not considered, which may cause that logical channels with different QoS requirements cannot be allocated to different HARQ processes, so that the service transmission QoS cannot be guaranteed, and the situation that the service transmission QoS is initially violated with the network resource allocation is caused, for example, according to LCH information (for example, BSR or buffer status report) to be transmitted, the network side device wants to place LCH1 information on the HARQ process in the disabled state for resource transmission, and place LCH2 information on the HARQ process in the enabled state for resource transmission. Therefore, for how to complete uplink logical channel multiplexing for the HARQ process of the off HARQ function and the HARQ process of the on HARQ function, a set of rules needs to be formulated from the standard level.

It should be noted in advance that, in the embodiment of the present application, the HARQ process may be set with an enabled state, or may not be set with an enabled state. When the HARQ process is set to an enabled state, the HARQ process is caused to include the HARQ process in a disabled state and the HARQ process in an enabled state based on the HARQ function. Turning on the HARQ function refers to the HARQ process being in an enabled state, and turning off the HARQ function refers to the HARQ process being in a disabled state. The HARQ process not provided with the enabling state may perform ACK/NACK feedback as the HARQ process that starts the HARQ function, and of course, the HARQ process not provided with the enabling state may also be the HARQ process not performing ACK/NACK feedback, which is not limited in the embodiment of the present application. In the embodiment that follows in this application, the HARQ process that is not provided with the HARQ function may also be understood as an HARQ process that does not limit the mapping situation of the logical channels, that is, according to the first information, any one logical channel may send its corresponding uplink transmission on the HARQ process. The HARQ process in the disabled state and the HARQ process in the enabled state may be referred to as two-attribute HARQ processes, or may be referred to as two-type HARQ processes.

FIG. 1 illustrates a schematic diagram of an implementation environment provided by embodiments of the present application. The implementation environment describes a satellite access network (Satellite access network) in NTN technology. The implementation environment comprises a terminal 01, a satellite 02, a gateway 03 and a core network 04.

In NTN technology, there may be a plurality of terminals 01, and each of the plurality of terminals 01 may be communicatively connected to the satellite 02, and fig. 1 schematically illustrates only one terminal 01. In addition, the number of satellites 02 may be plural, and the plural satellites 02 are connected by Inter Satellite Links (ISL), and fig. 1 schematically illustrates only one satellite 02.

In the NTN technology, the terminal may also be referred to as an NTN terminal, which may be a terminal defined by 3GPP, or a terminal specific to a satellite system when a satellite does not directly serve the terminal defined by 3 GPP. The terminal may be UE, and in this embodiment of the present application, the terminal is used as the UE to describe.

The terminal 01 and the satellite 02 are communicatively connected by a service link (service link), which refers to a radio link (radio link) between the terminal 01 and the satellite 02. In addition, terminal 01 may also support wireless communication connections with a terrestrial access network.

Satellite 02 may also be referred to as an aerial platform space or aerial platform (space/airborne platform), and may implement a bent pipe (bent pipe) or regenerative load (regenerative payload) configuration.

A Gateway (Gateway) 03 is used to connect the satellite (or air access network) 02 to the core network. The gateway 03 is connected to the satellite 02 via Feeder links (Feeder links).

In the implementation environment provided in the embodiment of the present application, the satellite 02 is used to connect the terminal 01 to the core network 04, and of course, a base station may also be included in other exemplary implementation environments, which is not limited in the embodiment of the present application.

Fig. 2 shows a data transmission method provided in an embodiment of the present application, where the method may be applied to a terminal 01 in the implementation environment shown in fig. 1, and the method includes:

step 201, according to the first information, uplink transmission corresponding to the first logical channel is sent on the uplink resource.

The uplink resource includes a resource corresponding to an HARQ process with an HARQ function in a disabled state, and the first logical channel includes a logical channel that allows transmission on the resource corresponding to the HARQ process in the disabled state.

In summary, according to the data transmission method provided in the embodiment of the present application, since the uplink transmission corresponding to the first logical channel corresponding to the HARQ process in the disabled state may be sent on the resource corresponding to the HARQ process in the disabled state according to the first information, the terminal may send the uplink transmission corresponding to the LCH on the appropriate uplink resource according to the correspondence between the LCH and the HARQ processes of different types, thereby ensuring QoS requirements of different services.

In one embodiment, the uplink transmission corresponding to the first logical channel includes at least one of the following two types: uplink data corresponding to a first logical channel, and at least a MAC CE corresponding to the first logical channel. That is, in step 201, the terminal transmits uplink data corresponding to the first logical channel on the uplink resource according to the first information; and/or, according to the first information, the terminal transmits at least the MAC CE corresponding to the first logic channel on the uplink resource. The following embodiments will each describe an example in which the terminal transmits uplink data corresponding to the first logical channel on the uplink resource based on the first information.

It should be noted that, the data transmission method described in the embodiment of the present application is described by taking the following case as an example: the first logical channel includes a logical channel that allows transmission on a resource corresponding to the HARQ process in the disabled state, and the second logical channel includes a logical channel that allows transmission on a resource corresponding to the HARQ process in the enabled state or that prohibits transmission on a resource corresponding to the HARQ process in the disabled state. In other exemplary implementations, the second logical channel may also be set to include a logical channel that allows transmission on a resource corresponding to the HARQ process in the disabled state, and the first logical channel includes a logical channel that allows transmission on a resource corresponding to the HARQ process in the enabled state or that prohibits transmission on a resource corresponding to the HARQ process in the disabled state, and the relevant processes implemented by this method may refer to the relevant descriptions of the embodiments of the present application, which are not repeated herein.

According to the source of the first information, the embodiments of the present application provide the following three data transmission methods, respectively, where in the first data transmission method, the first information is obtained in a resource allocation signaling of an uplink resource; in a second data transmission method, first information is acquired from downlink control information carried on a physical downlink control channel; in a third data transmission method, first information is acquired in a resource scheduling signaling of an uplink resource. These three embodiments are described below, respectively.

In the first and second data transmission methods, the first information may include at least one of the following information:

1) And enabling state of at least one HARQ process in the HARQ processes corresponding to the uplink resource.

2) Enabling states of all HARQ processes corresponding to the terminal;

3) And the HARQ process identification which corresponds to the uplink resource and is in a disabled state.

4) And the HARQ process identification which corresponds to the uplink resource and is in an enabled state.

5) Identification of the first logical channel.

6) Priority of the first logical channel.

7) An identification of a second logical channel distinct from the first logical channel;

8) The priority of the second logical channel is different from the first logical channel.

The second logical channel is a logical channel that prohibits transmission on a resource corresponding to the HARQ process in the disabled state, or a logical channel that permits transmission on a resource corresponding to the HARQ process in the enabled state.

In the first and second data transmission methods, the uplink resource may include an uplink configuration grant CG resource, and the first information further includes at least one of the following information:

9) An uplink CG index (index) identifier corresponding to the uplink CG resource;

10 An uplink CG index identification, an identification of at least one logical channel corresponding to the uplink CG index identification. The logical channel is an identification of a logical channel transmitted on an uplink CG resource corresponding to the uplink CG index identification.

11 The uplink CG index identification, the priority of at least one logical channel corresponding to the uplink CG index identification. The logic channel is the priority of the logic channel transmitted on the uplink CG resource corresponding to the uplink CG index identification.

In an exemplary embodiment, in the first and second data transmission methods, the uplink resource may include an uplink CG resource, where the uplink CG resource may correspond to a plurality of uplink CG indexes, and each uplink CG index may correspond to at least one HARQ process, and the first information with a sequence number of 1) may include the following three sub-cases:

a) Enabling states of all HARQ processes corresponding to the uplink CG resources;

b) Enabling states of all HARQ processes corresponding to a single CG index identifier corresponding to an uplink CG resource, wherein the uplink CG resource is provided with at least two CG index identifiers corresponding to the uplink CG resource;

c) An enabled state corresponding to a single HARQ process corresponding to an uplink CG resource.

In the third data transmission method, the first information may include at least one of the following information:

1) An enabling state of the HARQ process corresponding to the uplink resource;

2) Identification of the first logical channel;

3) Priority of the first logical channel;

4) An identification of a second logical channel distinct from the first logical channel;

5) The priority of the second logical channel that is different from the first logical channel,

the second logic channel comprises a logic channel which prohibits transmission on the resource corresponding to the HARQ process in the disabled state, or a logic channel which allows transmission on the resource corresponding to the HARQ process in the enabled state;

6) And the identification of at least one logical channel corresponding to the uplink resource. That is, at least one logical channel corresponding to the uplink resource refers to at least one logical channel transmitted on the uplink resource.

7) Priority of at least one logical channel corresponding to the uplink resource. That is, at least one logical channel corresponding to the uplink resource refers to at least one logical channel transmitted on the uplink resource.

Fig. 3 shows a flowchart of the first data transmission method, in which the uplink resource includes an uplink CG resource (which may also be referred to as CG resource, and the CG resource may be type1 CG and/or type 2 CG). The method comprises the following steps:

step 301, receiving a resource configuration signaling of an uplink resource, where the resource configuration signaling carries first information.

The resource configuration signaling carries first information, the first information may include at least one information item therein, and when the first information includes more than two information items, different information items may be carried in the same or different resource configuration signaling. Illustratively, the resource configuration signaling includes radio resource control (Radio Resource Control, RRC) signaling that includes RRC signaling for configuring the uplink CG resources. The RRC signaling may include configuredgrantconfig IE.

The first information may include at least one of the following information items:

1) Configuring a CG index (index) identifier corresponding to the CG resource;

2) Enabling states of all HARQ processes corresponding to the terminal;

3) The number of HARQ processes corresponding to the configured CG resources. Illustratively, HARQ offsets are configured simultaneously when multiple CG resources are configured; illustratively, the number of HARQ processes corresponding to the configured CG resources includes: the number of HARQ processes corresponding to the configured CG index.

4) An HARQ process identifier corresponding to the configured CG resource; illustratively, the identification of the HARQ process corresponding to the configured CG resource includes: identification of the HARQ process corresponding to the configured CG index.

5) An enabling state of at least one HARQ process among HARQ processes corresponding to the configured CG resources; illustratively, it comprises: a) Enabling states of all HARQ processes corresponding to the uplink CG resources; b) Enabling states of all HARQ processes corresponding to a single CG index identifier corresponding to an uplink CG resource, wherein the uplink CG resource is provided with at least two CG index identifiers corresponding to the uplink CG resource; c) An enabled state corresponding to a single HARQ process corresponding to an uplink CG resource.

6) The HARQ process identifier which corresponds to the configured CG resource and is in the disabling state;

7) An enabled HARQ process identifier corresponding to the configured CG resource;

8) Identification of the first logical channel;

9) Priority of the first logical channel;

10 An identification of a second logical channel that is distinct from the first logical channel;

11 A priority of the second logical channel that is different from the first logical channel. The second logical channel is a logical channel that prohibits transmission on a resource corresponding to the HARQ process in the disabled state, or a logical channel that permits transmission on a resource corresponding to the HARQ process in the enabled state.

12 An upstream CG index identification, an identification of at least one logical channel corresponding to the upstream CG index identification. The logical channel is an identification of a logical channel transmitted on an uplink CG resource corresponding to the uplink CG index identification.

13 An upstream CG index identification, a priority of at least one logical channel corresponding to the upstream CG index identification. The logic channel is the priority of the logic channel transmitted on the uplink CG resource corresponding to the uplink CG index identification.

And configuring CG resources and HARQ related parameters corresponding to the configured CG resources according to the received resource configuration signaling, and configuring or determining a first logic channel and/or a second logic channel. The first logical channel includes a logical channel that allows transmission on a resource corresponding to the HARQ process in the disabled state, and the second logical channel includes a logical channel that inhibits transmission on a resource corresponding to the HARQ process in the disabled state, or a logical channel that allows transmission on a resource corresponding to the HARQ process in the enabled state.

Step 302, according to the first information, uplink transmission corresponding to the first logical channel is sent on the uplink resource.

For example, the RRC signaling for configuring the uplink CG resource may include RRC signaling for configuring the uplink CG resource of type1, and may also include RRC signaling for configuring the uplink CG resource of type 2.

If the CG resource configured according to the RRC signaling is type1 CG, after the UE receives the resource configuration signaling, the CG resource can be used for data transmission; if the configured CG resource is type2 CG, after the UE receives the resource configuration signaling and receives the DCI signaling to indicate activation, the UE may use the CG resource to perform data transmission.

In the embodiment of the present application, the first information may be at least one of the 1 st, 2 nd, and 5 th to 12 th items of the at least one information item described in the above step 301. The HARQ functions of the HARQ process corresponding to the uplink CG resource may include three cases: the HARQ function is in an enabled state, the HARQ function is in a disabled state, and the HARQ function is not set. Thus, step 302 can be divided into the following three cases:

in the first case, when the UE uses the CG resource to perform a new transmission, if the UE determines, according to the first information, that the HARQ function corresponding to the uplink CG resource is in a disabled state, and since the first logical channel is preset to include a logical channel that allows transmission on the resource corresponding to the HARQ process in the disabled state, the UE maps only uplink data corresponding to the first logical information and/or at least the MAC CE corresponding to the first logical channel on the uplink CG resource.

In the second case, when the UE uses the CG resource to perform a new transmission, if the UE determines, according to the first information, that the HARQ function corresponding to the uplink CG resource is in an enabled state, because the second logical channel is a logical channel that prohibits transmission on the resource corresponding to the HARQ process in the disabled state, or a logical channel that allows transmission on the resource corresponding to the HARQ process in the enabled state, the UE maps only the uplink data corresponding to the second logical information and/or at least the MAC CE corresponding to the second logical channel on the uplink CG resource.

In a third case, when the UE uses the CG resource to perform new transmission, if the UE determines, according to the first information, that the HARQ process corresponding to the uplink CG resource does not have the HARQ function set, because the second logical channel is a logical channel for prohibiting transmission on the resource corresponding to the HARQ process in the disabled state, or a logical channel for allowing transmission on the resource corresponding to the HARQ process in the enabled state, the UE maps only uplink data corresponding to the second logical information and/or at least MAC CE corresponding to the second logical channel on the uplink CG resource; or, the UE maps uplink data corresponding to the first logical channel and the second logical channel and/or at least MAC CEs corresponding to the logical channel on the uplink CG resource.

It should be noted that, if the second logical channel is not indicated in the resource configuration information, the UE may determine the second logical channel from all the total logical channels according to the first logical channel. Similarly, if the first logical channel is not indicated in the resource configuration information, the UE may determine the first logical channel from all the total logical channels according to the second logical channel.

Fig. 4 shows a schematic diagram of a specific embodiment of the data transmission method described with respect to fig. 3. Suppose that the UE establishes 4 uplink logical channels, LCH1, LCH2, LCH3, and LCH4, respectively. In the embodiment of the present application, description will be given by taking, as an example, an identification that the first information includes a logical channel.

Step a1, the UE receives a resource allocation signaling sent by the network side equipment, and the UE configures the following contents according to the resource allocation signaling:

two sets of CG resources respectively corresponding to CG index1 and CG index2 and being CG resources of type 1;

wherein, 2 HARQ processes corresponding to CG resources of CG index1, corresponding HARQ IDs are 1 and 2, HARQ ID1 is configured as a de-enabled HARQ process, HARQ ID2 is configured as an enabled HARQ process, LCH that can be transmitted on CG index1 is LCH1 to LCH4, a first logical channel is configured as LCH1 and LCH2, and a second logical channel is configured as LCH3 and LCH4;

And 2 HARQ processes corresponding to CG resources of CG index2, wherein corresponding HARQ IDs are 3 and 4 respectively, HARQ ID3 is configured as a de-enabled HARQ process, HARQ ID4 is an enabled HARQ process, LCH which can be transmitted on CG index2 is LCH2 and LCH4, a first logic channel is configured as LCH2, and a second logic channel is configured as LCH4.

And a2, according to the first information, transmitting uplink transmission corresponding to the first logic channel on an uplink resource.

At time t1, the position of CG resource of CG index1 is the corresponding HARQ process is HARQ ID1, and at this time, each LCH may transmit data to be transmitted, but since HARQ ID1 is the disabled HARQ process and the first logical channel identifier is LCH1 and LCH2, the UE uses the uplink CG resource to transmit only uplink data corresponding to LCH1 and LCH2, that is, the UE only transmits uplink data corresponding to LCH1 and LCH2 on the uplink resource.

At time t2, the CG resource position of CG index1 is the position of HARQ ID2 for the corresponding HARQ process, and at this time, each LCH may transmit data to be transmitted, but since HARQ ID2 is an enabled HARQ process and the second logical channel identifier is LCH3, LCH4, the UE uses the uplink CG resource to transmit only uplink data corresponding to LCH3 and LCH4, that is, the UE only transmits uplink data corresponding to LCH3 and LCH4 on the uplink resource.

At time t3, the CG resource position of CG index2 is the position of HARQ ID3 in the corresponding HARQ process, and at this time, each LCH may transmit data to be transmitted, but since HARQ ID3 is deactivated HARQ and LCH transmitted on CG index2 is LCH2 and LCH4, the UE uses the uplink CG resource to transmit only uplink data corresponding to LCH2, that is, the UE transmits only uplink data corresponding to LCH2 on the uplink resource.

At time t4, the CG resource position of CG index2 is the position of HARQ ID4 in the corresponding HARQ process, and at this time, each LCH may transmit data to be transmitted, but since HARQ ID4 is enabled HARQ and LCH transmitted on CG index2 is LCH2 and LCH4, the UE uses the uplink CG resource to transmit only uplink data corresponding to LCH4, that is, the UE transmits only uplink data corresponding to LCH4 on the uplink resource.

It should be noted that, when the first information includes an uplink CG index identifier, an identifier and/or a priority of at least one logical channel corresponding to the uplink CG index identifier, that is, the first information includes a CG index and an identifier and/or a priority of a logical channel transmitted on a CG resource corresponding to the CG index, for example, LCH that may be transmitted on CG index2 is LCH2 and LCH4, which may be used to limit an identifier or a priority of LCH that is transmitted on a certain HARQ process or each CG resource (e.g., a CG resource corresponding to a specific CG index). Of course, the information may also be a dedicated indication information and not be carried in RRC.

It should be noted that different CG resources may correspond to the same LCH ID, or may correspond to different LCH IDs. The LCHs corresponding to different CG resources may be the same type of logical channel, e.g., different CG resources each correspond to a first type of logical channel, or may correspond to different types of logical channels, e.g., one CG resource corresponds to a first logical channel and another CG resource corresponds to a second logical channel.

For example, in the embodiment of the present application, the UE may correspond to CG resources and Dynamic Grant (DG) resources, where the CG resources may correspond to at least one CG index, and each CG index may correspond to at least one HARQ process. When the UE is taken as granularity, HARQ functions corresponding to at least one HARQ process corresponding to the UE may be both enabled or both disabled; when CG resources are taken as granularity, HARQ functions corresponding to at least one HARQ process corresponding to CG resources transmitted on at least one CG index may be both enabled or both disabled; when CG index is taken as granularity, HARQ functions corresponding to at least one HARQ process corresponding to CG resources transmitted on each CG index may be both enabled or both disabled; when the HARQ process is at granularity, the HARQ function of each HARQ process in at least one HARQ process corresponding to the CG resource needs to be configured separately.

When granularity is the UE, CG resources and CG index, the foregoing first information may include any one of items 1, 2, and 5 to 13 in step 301.

For example, if it is indicated in the first information that at least one HARQ process corresponding to the uplink resource with CG index ID being a (a is a non-negative integer) is disabled, only uplink data corresponding to the first logical channel is transmitted on all uplink resources with CG index ID being a (or the corresponding HARQ process).

In the first data transmission method, for CG resources of different types (i.e. type1 and/or type 2), the mapping relation between LCH and HARQ processes with different HARQ functions is introduced into RRC information, so that different LCHs are guaranteed to be transmitted on HARQ processes with HARQ functions being turned off and HARQ processes with HARQ functions being turned on, respectively, and thus QoS requirements of different services are guaranteed.

Fig. 5 shows a flowchart of a second data transmission method, in which the uplink resource includes an uplink CG resource (which may also be referred to as CG resource, and the CG resource may be type2 CG).

The method comprises the following steps:

step 501, receiving a PDCCH.

The PDCCH is used for indicating the activation state of the uplink resource, and the PDCCH carries first information. The first information may include at least one information item therein, and when the first information includes more than two information items, different information items may be carried in the same or different PDCCHs.

Illustratively, prior to step 501, the data transmission method further comprises: and receiving a resource allocation signaling of the uplink resource. Such as receiving configuredgrantconfig IE. The resource allocation signaling is used for allocating uplink type2 CG resources and corresponding HARQ related parameters. The resource allocation signaling may include at least one of the following information items:

1) Configuring a CG index (index) identifier corresponding to the CG resource;

2) The number of HARQ processes corresponding to the configured CG resources. Illustratively, HARQ offsets are configured simultaneously when multiple CG resources are configured; illustratively, the number of HARQ processes corresponding to the configured CG resources includes: the number of HARQ processes corresponding to the configured CG index.

3) An HARQ process identifier corresponding to the configured CG resource; illustratively, the identification of the HARQ process corresponding to the configured CG resource includes: identification of the HARQ process corresponding to the configured CG index.

Illustratively, step 501 may include:

step 501a, receiving DCI signaling carried by PDCCH.

The DCI signaling carries first information, and is used for activating uplink CG resources.

Step 501b, activating uplink CG resources according to DCI signaling.

When the UE receives the resource allocation signaling and receives the DCI signaling to indicate to activate a certain uplink CG resource, the uplink CG resource can be used for data transmission.

Illustratively, the first information may include at least one of the following items of information:

1) Configuring a CG index identifier corresponding to the CG resource;

2) Enabling states of all HARQ processes corresponding to the terminal;

8) Identification of the first logical channel;

9) Priority of the first logical channel;

11 A priority of the second logical channel that is different from the first logical channel. The second logical channel is a logical channel which prohibits transmission on a resource corresponding to the HARQ process in the disabled state, or a logical channel which permits transmission on a resource corresponding to the HARQ process in the enabled state.

12 An uplink CG index identification, an identification of at least one logical channel corresponding to the uplink CG index identification. The logical channel is an identification of a logical channel transmitted on an uplink CG resource corresponding to the uplink CG index identification.

13 The uplink CG index identification, the priority of at least one logical channel corresponding to the uplink CG index identification. The logic channel is the priority of the logic channel transmitted on the uplink CG resource corresponding to the uplink CG index identification.

Illustratively, the resource configuration signaling may include at least one information item in the first information. The resource configuration signaling and the PDCCH together give complete first information.

Illustratively, the type2 CG resource and the HARQ related parameter corresponding to the configured type2 CG resource are configured according to the received resource configuration signaling or DCI signaling, and the first logical channel and/or the second logical channel are configured or determined. The first logical channel includes a logical channel that allows transmission on a resource corresponding to the HARQ process in the disabled state, and the second logical channel is a logical channel that prohibits transmission on a resource corresponding to the HARQ process in the disabled state, or a logical channel that allows transmission on a resource corresponding to the HARQ process in the enabled state.

Step 502, according to the first information, uplink transmission corresponding to the first logical channel is sent on the uplink resource.

The UE may activate uplink CG resources according to DCI signaling included therein after receiving the PDCCH. For the activated uplink CG resource, the UE may send, according to at least one information item in the first information, uplink transmission corresponding to the first logical channel on the uplink resource. Similar to step 302 described above, in the embodiment of the present application, the HARQ functions of the HARQ process corresponding to the uplink CG resource may include three cases: the HARQ function is in an enabled state, the HARQ function is in a disabled state, and the HARQ function is not set. Thus, step 302 can be divided into the following three cases:

In the first case, when the UE uses the CG resource to perform a new transmission, if the UE determines, according to the first information, that the HARQ function corresponding to the uplink CG resource is in a disabled state, the UE maps only uplink data corresponding to the first logic information and/or at least the MAC CE corresponding to the first logic channel on the uplink CG resource.

In the second case, when the UE uses the CG resource to perform a new transmission, if the UE determines, according to the first information, that the HARQ function corresponding to the uplink CG resource is in an enabled state, the UE maps only uplink data corresponding to the first logic information and/or at least the MAC CE corresponding to the first logic channel on the uplink CG resource.

In a third case, when the UE uses the CG resource to perform a new transmission, if the UE determines, according to the first information, that the HARQ process corresponding to the uplink CG resource is not provided with the HARQ function, the UE maps only uplink data corresponding to the second logic information and/or at least MAC CE corresponding to the second logic channel on the uplink CG resource; or mapping uplink data corresponding to the first logical channel and the second logical channel and/or at least MAC CEs corresponding to the logical channels on the uplink CG resources by the UE.

It should be noted that, if the second logical channel is not indicated in the DCI signaling, the UE may determine the second logical channel from the first logical channel among all the total logical channels. Similarly, if the first logical channel is not indicated in the DCI signaling, the UE may determine the first logical channel from all the total logical channels according to the second logical channel.

It should be noted that, the configuration of the enabled state of the HARQ process, for example, the configuration of the HARQ process HARQ ID1 corresponding to CG index1 as the disabled HARQ process and the configuration of HARQ ID2 as the enabled HARQ process may also be configured in a dedicated RRC message or indicated in DCI.

Fig. 6 shows a schematic diagram of a specific embodiment of the data transmission method described with respect to fig. 5. Suppose that the UE establishes 4 uplink logical channels, LCH1, LCH2, LCH3, and LCH4, respectively.

Step b1, the UE receives a resource configuration signaling sent by the network side equipment, and the UE configures the following content according to at least one information item in the resource configuration signaling:

two sets of CG resources respectively correspond to CG index1 and CG index2 and are CG resources of type2, wherein 2 HARQ processes corresponding to the CG resources of CG index1 are respectively 1 and 2 corresponding HARQ IDs. And 2 HARQ processes corresponding to CG resources of CG index2, wherein corresponding HARQ IDs are 3 and 4 respectively, HARQ ID3 is configured as an enabled HARQ process, and HARQ ID4 is configured as an enabled HARQ process.

Step b2, the UE receives the PDCCH bearing the DCI instruction.

The first information in the DCI signaling indicates CG resource activation of CG index1, and the process may include: firstly, DCI signaling indicates CG resource activation of CG index 1; then, the first information in the DCI signaling indicates that, among HARQ processes of CG resources corresponding to CG index1, there are deactivated HARQ processes.

Further, HARQ ID1 is indicated as the de-enabled HARQ process and HARQ ID2 is the enabled HARQ process. LCH indicating that transmission can be on CG index1 is LCH1, LCH2, LCH3. Indicating that the first logical channel is identified as LCH1, LCH2, and the second logical channel is identified as LCH3, LCH4.

Further, the dedicated RRC message or the DCI may indicate the identity and/or priority of the logical channel transmitted on the CG resource corresponding to at least one CG index, for example, LCH that may be transmitted on CG index1 is LCH1, LCH2 and LCH3, which may be used to limit the identity and/or priority of LCH that is transmitted on a certain HARQ process or each CG resource (e.g., CG resource corresponding to a specific CG index). The corresponding information may be one of the first information or a special indication information.

Note that, since CG resources of CG index2 are not indicated to be active (and thus are not shown in fig. 6), the UE cannot use the CG resources for UL transmission. Until the UE receives the network indication to activate the CG index2 resource, the UE can use the CG index2 resource to transmit.

As another embodiment, the enabled state of the HARQ process, such as configuring the HARQ process HARQ ID1 corresponding to CG index1 as the disabled HARQ process and HARQ ID2 as the enabled HARQ process, may also be configured in a dedicated RRC message or indicated in DCI.

For example, the enabled state of the HARQ process may be determined according to the number of HARQ processes, the priority of LCH corresponding data, the established service QoS, and so on.

And b3, transmitting uplink transmission corresponding to the first logic channel on uplink resources according to the first information.

At time t1, the CG resource position of CG index1 is the position of HARQ ID1 in the corresponding HARQ process, and at this time, each LCH may transmit data to be transmitted, but since HARQ ID1 is the deactivated HARQ process and the first logical channel identifier is LCH1 and LCH2, the UE uses the uplink CG resource to transmit only uplink data of LCH1 and LCH 2.

At time t2, the CG resource position of CG index1 is the position of HARQ ID2 for the corresponding HARQ process, and at this time, each LCH may transmit data to be transmitted, but since HARQ ID2 is an enabled HARQ process and the second logical channel identifier is LCH3 and LCH4, LCH4 cannot be transmitted on the CG index1 resource, and the UE uses the uplink CG resource to transmit only uplink data of LCH 3.

For example, the first information carried in the DCI may include an uplink CG index identifier, an identifier and/or a priority of at least one logical channel corresponding to the uplink CG index identifier, for example, LCH that may be transmitted on CG index1 is LCH1, LCH2 and LCH3, which may be used to limit the identifier or the priority of LCH that is transmitted on a certain HARQ process or each CG resource (such as a CG resource corresponding to a specific CG index). In addition, the uplink CG index identification, the identification and/or the priority of at least one logical channel corresponding to the uplink CG index identification may be indicated in dedicated indication information, for example in a dedicated RRC message.

For example, the UE may correspond to CG resources and DG resources, where the CG resources may correspond to at least one CG index, and each CG index may correspond to at least one HARQ process. When the UE is taken as granularity, HARQ functions corresponding to at least one HARQ process corresponding to the UE may be both enabled or both disabled; when CG resources are taken as granularity, HARQ functions corresponding to at least one HARQ process corresponding to CG resources transmitted on at least one CG index may be both enabled or both disabled; when CG index is taken as granularity, HARQ functions corresponding to at least one HARQ process corresponding to CG resources transmitted on each CG index may be both enabled or both disabled; when the HARQ process is at granularity, the HARQ function of each HARQ process in at least one HARQ process corresponding to the CG resource needs to be configured separately.

When granularity is the UE, CG resources and CG index, the foregoing first information may include at least one information item in the first information described in step 501.

In the second data transmission method, for CG resource of type2, mapping relation between LCH and HARQ process with different HARQ functions is introduced in DCI signaling, so that different LCHs are guaranteed to be transmitted on HARQ process with HARQ function being turned off and HARQ process with HARQ function being turned on, respectively, and QoS requirements of different services are guaranteed.

Fig. 7 shows a flowchart of a third data transmission method, in which uplink resources include DG resources, one DG resource corresponding to each HARQ process. The method comprises the following steps:

step 701, receiving a resource scheduling signaling of an uplink resource.

The resource scheduling signaling carries first information, and the resource scheduling signaling comprises downlink control information DCI signaling for scheduling uplink dynamic resources. The resource scheduling signaling may include a PDCCH.

The resource scheduling signaling carries first information, the resource scheduling signaling comprises at least one information item, the first information can comprise at least one information item, and when the first information comprises more than two information items, different information items are carried in the same or different resource scheduling signaling. The following illustrates at least one information item that may be included in the resource scheduling signaling:

1) HARQ process identification corresponding to configured DG resources;

2) An enabling state of the HARQ process corresponding to the configured DG resource;

3) Identification of the first logical channel;

4) Priority of the first logical channel;

5) An identification of a second logical channel distinct from the first logical channel;

6) A priority of a second logical channel different from the first logical channel, wherein the second logical channel is a logical channel that prohibits transmission on a resource corresponding to the HARQ process in the disabled state or a logical channel that allows transmission on a resource corresponding to the HARQ process in the enabled state;

7) Identification of at least one logical channel corresponding to the configured DG resource. Wherein, at least one logical channel corresponding to the configured DG resource refers to a logical channel transmitted on the DG resource.

8) Priority of at least one logical channel corresponding to the configured DG resource. Wherein, at least one logical channel corresponding to the configured DG resource refers to a logical channel transmitted on the DG resource.

If the HARQ function of the HARQ process is indicated to be in a disabled state in the DCI, the DCI indicates information of the first logical channel; if the HARQ function of the HARQ process is indicated to be in a disabled state in the DCI, information of a second logical channel is indicated in the DCI. In other possible implementations, if the HARQ function of the HARQ process is indicated to be in the disabled state in the DCI signaling and the second logical channel is also indicated in the DCI signaling, the UE may first determine the first logical channel from all the total logical channels according to the second logical channel indicated by the DCI signaling, and then transmit uplink data corresponding to the first logical channel on the HARQ process in the disabled state. Or if the HARQ function of the HARQ process is indicated to be in the disabled state in the DCI signaling, the UE may indicate a logical channel corresponding to the HARQ process and identify the logical channel as the first logical channel. This is not limiting in this embodiment of the present application.

Step 702, according to the first information, transmitting uplink transmission corresponding to the first logical channel on an uplink resource.

If the network indicates that the resource is a new transmission resource or new indication information (New Data Indication, NDI) is flipped (0 becomes 1 or 1 becomes 0) through DCI, the UE may use the DG resource for new transmission. Otherwise, the UE retransmits the transmission using the DG resource process.

In the embodiment of the present application, the first information may be at least one of the 2 nd to 6 th items of at least one information item included in the above-mentioned resource configuration signaling. For three cases of HARQ functions of the HARQ process corresponding to the DG resource, step 702 may include the following three cases:

in the first case, if the HARQ function corresponding to the uplink DG resource is determined to be in a disabled state according to the first information when the UE uses the DG resource for new transmission, if the HARQ function is the new transmission resource, the UE maps only uplink data corresponding to the first logic information and/or at least MAC CEs corresponding to the first logic channel to the uplink CG resource.

In the second case, if the UE determines that the HARQ function corresponding to the uplink DG resource is in an enabled state according to the first information when the UE uses the DG resource for new transmission, the UE maps only the uplink data corresponding to the second logic information and/or at least the MAC CE of the second logic channel to the UL CG resource.

In a third case, if the HARQ process corresponding to the uplink DG resource is not set with the HARQ function according to the first information when the UE uses the DG resource to perform new transmission, the UE maps only uplink data corresponding to the second logic information and/or at least the MAC CE of the second logic channel on the uplink CG resource; or, the UE maps uplink data corresponding to the first logical channel and the second logical information and/or at least the MAC CE corresponding to the logical channel on the uplink CG resource.

It should be noted that, if the second logical channel is not indicated in the DCI, the UE may determine the second logical channel from all the total logical channels according to the first logical channel. Similarly, if the first logical channel is not indicated in the DCI, the UE may determine the first logical channel from all the total logical channels according to the second logical channel.

Fig. 8 shows a schematic diagram of a specific embodiment of the data transmission method described with respect to fig. 7. Suppose that the UE establishes 4 uplink logical channels, LCH1, LCH2, LCH3, and LCH4, respectively.

Step c1, the UE receives DCI indication information sent by the network side equipment and schedules DG resources for new transmission. Meanwhile, the information indicated in the DCI specifically includes:

1) The HARQ process identifier corresponding to the DG resource is HARQ ID1;

2) The HARQ ID1 is indicated as the de-enabled HARQ process, i.e. the attribute indicating the type of HARQ process (i.e. the enabled state of the HARQ process).

3) Information indicating that the first logical channel is identified as LCH1 and LCH2, i.e., the first logical channel.

4) The LCHs that indicate the ability to transmit on the resource are LCH1, LCH2, and LCH3, i.e., the attributes of LCHs that can transmit on the DG resource.

And c2, according to the first information, transmitting uplink transmission corresponding to the first logic channel on an uplink resource.

For the DG resource, each LCH may now have data to transmit. But since LCH that can be transmitted on the resource is indicated as LCH1, LCH2, LCH3, only LCH1, LCH2, LCH3 data can be transmitted on the DG. Meanwhile, if the type of the HARQ process, the type indicated by the HARQ process with ID1 is the de-enabled HARQ process, and the first logical channel is identified as LCH1 and LCH2, the UE uses the DG resource to transmit only the data of LCH1 and LCH 2.

It should be noted that, the UE may determine the attribute of the HARQ process type and the first logical channel information first, and then determine the indicated attribute of the LCH capable of being transmitted on the DG resource, or determine the attribute of the HARQ process type and the first logical channel information and the indicated attribute of the LCH capable of being transmitted on the DG resource at the same time, or determine in other sequences.

In the third data transmission method, the resource scheduling signaling may also be referred to as other signaling names such as a resource transmission signaling, where the signaling is used to allocate uplink resources, and the specific name of the signaling is not limited in this application.

In the third data transmission method, for DG resources, the mapping relation between LCH and HARQ processes with different types of HARQ functions is introduced into DCI, so that different LCHs are ensured to be transmitted on the HARQ processes with the HARQ functions being closed and the HARQ processes with the HARQ functions being opened respectively, and QoS requirements of different services are ensured.

In the above three data transmission methods, after the terminal sends the uplink transmission corresponding to the first logical channel on the uplink resource according to the first information, the terminal multiplexes the uplink data corresponding to the first logical channel and/or at least the MAC CE corresponding to the first logical channel on the uplink resource to transmit, thereby ensuring QoS requirements of different services in the transmission process.

In summary, according to the data transmission method provided in the embodiment of the present application, since the uplink corresponding to the first logical channel corresponding to the HARQ process in the disabled state may be sent on the resource corresponding to the HARQ process in the disabled state according to the first information, the terminal may send the uplink corresponding to the LCH on the appropriate uplink resource according to the correspondence between the LCH and the HARQ processes in different types, thereby ensuring QoS requirements of different services.

Fig. 9 shows a flowchart of a data transmission method according to an embodiment of the present application, where the method may be applied to a network-side device, for example, the satellite 02 in the implementation environment shown in fig. 1. The method comprises the following steps:

step 901, sending first information, where the first information is used to instruct the terminal to send uplink transmission corresponding to the first logical channel on an uplink resource.

The uplink resource comprises a resource corresponding to an HARQ process with an HARQ function in a disabled state, and the first logic channel comprises a logic channel which allows transmission on the resource corresponding to the HARQ process in the disabled state.

In summary, according to the data transmission method provided in the embodiment of the present application, since the first information may be sent, the terminal sends, according to the first information, the uplink transmission corresponding to the first logical channel corresponding to the HARQ process in the disabling state on the resource corresponding to the HARQ process in the disabling state, so that the terminal can send, according to the correspondence between the LCH and the HARQ processes of different types, the uplink transmission corresponding to the LCH on the appropriate uplink resource, thereby ensuring QoS requirements of different services.

Illustratively, the first information includes at least one of the following:

An enabling state of at least one HARQ process among HARQ processes corresponding to the uplink resource;

enabling states of all HARQ processes corresponding to the terminal;

a HARQ process identifier in a de-enabling state corresponding to the uplink resource;

an HARQ process identifier in an enabling state corresponding to the uplink resource;

an identification of the first logical channel;

priority of the first logical channel;

an identification of a second logical channel distinct from the first logical channel;

the priority of the second logical channel distinct from the first logical channel,

the second logical channel includes a logical channel that prohibits transmission on a resource corresponding to the HARQ process in the disabled state, or a logical channel that permits transmission on a resource corresponding to the HARQ process in the enabled state.

Illustratively, in step 901, transmitting the first information may include: and sending a resource configuration signaling of the uplink resource, wherein the resource configuration signaling carries the first information, and the resource configuration signaling comprises a Radio Resource Control (RRC) signaling. Illustratively, the RRC signaling includes: RRC signaling to configure type 1 uplink configuration grant CG resources.

Illustratively, the RRC signaling includes: RRC signaling to configure type 2 uplink configuration grant CG resources;

in step 901, transmitting the first information may include: and sending a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is used for indicating the activation state of the uplink resource, and the PDCCH carries the first information.

The transmitting the physical downlink control channel PDCCH includes: and sending Downlink Control Information (DCI) signaling carried by the PDCCH, wherein the DCI signaling carries the first information, and the DCI signaling is used for activating the uplink CG resource.

Illustratively, the uplink resource includes an uplink configuration grant CG resource, and the enabling state of at least one HARQ process in the HARQ processes corresponding to the uplink resource includes:

enabling states of all HARQ processes corresponding to the uplink CG resources;

or enabling states of all HARQ processes corresponding to a single CG index identifier corresponding to the uplink CG resource, wherein the uplink CG resource is corresponding to at least two CG index identifiers;

or, an enabling state corresponding to the single HARQ process corresponding to the uplink CG resource.

Illustratively, the uplink resource includes an uplink configuration grant CG resource, and the first information further includes at least one of:

An uplink CG index identifier corresponding to the uplink CG resource;

an identification of at least one logical channel corresponding to the uplink CG index identification;

priority of at least one logical channel corresponding to the uplink CG index identification.

Illustratively, the first information includes at least one of the following:

an enabling state of the HARQ process corresponding to the uplink resource;

an identification of at least one logical channel corresponding to the uplink resource;

priority of at least one logical channel corresponding to the uplink resource;

an identification of the first logical channel;

priority of the first logical channel;

Illustratively, in step 901, transmitting the first information may include: and sending a resource scheduling signaling of the uplink resource, wherein the resource scheduling signaling carries the first information, and the resource scheduling signaling comprises a Downlink Control Information (DCI) signaling for scheduling the uplink dynamic resource.

Exemplary, the uplink transmission corresponding to the first logical channel includes at least one of the following:

uplink data corresponding to the first logic channel;

and a media access control layer control unit (MAC CE) corresponding to at least the first logic channel.

The description of the data transmission method performed by the network side device may refer to the description of the data transmission method performed by the terminal, which is not repeated herein in the embodiments of the present application.

Fig. 10 shows a block diagram of a data transmission device 100 according to an embodiment of the present application. The apparatus 100 includes:

a sending module 101, where the sending module 101 is configured to send, according to the first information, uplink transmission corresponding to the first logical channel on an uplink resource;

In summary, in the data transmission device provided in the embodiment of the present application, since the uplink corresponding to the first logical channel corresponding to the HARQ process in the disabling state may be sent on the resource corresponding to the HARQ process in the disabling state according to the first information, the terminal may send the uplink corresponding to the LCH on the appropriate uplink resource according to the correspondence between the LCH and the HARQ processes in different types, thereby ensuring QoS requirements of different services.

Illustratively, the first information includes at least one of the following:

enabling states of all HARQ processes corresponding to the terminal;

An identification of the first logical channel;

priority of the first logical channel;

Illustratively, as shown in FIG. 11, the apparatus 100 further comprises:

the receiving module 102 is configured to receive a resource configuration signaling of the uplink resource, where the resource configuration signaling carries the first information, and the resource configuration signaling includes radio resource control RRC signaling.

Illustratively, the RRC signaling includes: RRC signaling to configure type 1 uplink configuration grant CG resources.

the receiving module 102 is configured to receive a physical downlink control channel PDCCH, where the PDCCH is used to indicate an activation state of the uplink resource, and the PDCCH carries the first information.

Illustratively, as shown in FIG. 12, the apparatus 100 further comprises: the processing module 103 is configured to process the data,

the receiving module 102 is configured to: receiving a Downlink Control Information (DCI) signaling carried by the PDCCH, wherein the DCI signaling carries the first information;

the processing module 103 is configured to: and activating the uplink CG resource according to the DCI signaling.

enabling states of all HARQ processes corresponding to the uplink CG resources;

or enabling states of all HARQ processes corresponding to a single CG index corresponding to the uplink CG resource, wherein the uplink CG resource is corresponding to at least two CG indexes; or, an enabling state corresponding to the single HARQ process corresponding to the uplink CG resource.

an uplink CG index identifier corresponding to the uplink CG resource;

Illustratively, the first information includes at least one of the following:

an enabling state of the HARQ process corresponding to the uplink resource;

priority of at least one logical channel corresponding to the uplink resource;

an identification of the first logical channel;

priority of the first logical channel;

The receiving module 102 is configured to receive a resource scheduling signaling of the uplink resource, where the resource scheduling signaling carries the first information, and the resource scheduling signaling includes a downlink control information DCI signaling for scheduling an uplink dynamic grant DG resource.

Uplink data corresponding to the first logic channel;

Illustratively, the transmitting module 102 is further configured to:

and multiplexing the uplink data corresponding to the first logic channel and/or the MAC CE at least corresponding to the first logic channel on the uplink resource for transmission.

Fig. 13 shows a block diagram of a data transmission device 200 according to an embodiment of the present application. The data transmission device includes:

a sending module 201, configured to send first information, where the first information is used to instruct a terminal to send uplink transmission corresponding to a first logical channel on an uplink resource;

In summary, in the data transmission device provided in the embodiment of the present application, since the first information may be sent, the terminal sends, according to the first information, uplink corresponding to the first logical channel corresponding to the HARQ process in the disabling state on the resource corresponding to the HARQ process in the disabling state, so that the terminal may send, according to the correspondence between the LCH and the HARQ processes of different types, uplink corresponding to the LCH on an appropriate uplink resource, thereby ensuring QoS requirements of different services.

Illustratively, the first information includes at least one of the following:

enabling states of all HARQ processes corresponding to the terminal;

An identification of the first logical channel;

priority of the first logical channel;

The sending module 201 is configured to send a resource configuration signaling of an uplink resource, where the resource configuration signaling carries the first information, and the resource configuration signaling includes radio resource control RRC signaling.

for example, the sending module 201 is configured to send a physical downlink control channel PDCCH, where content of the PDCCH indicates that the uplink resource is activated, and the PDCCH carries the first information.

For example, the sending module 201 is configured to send downlink control information DCI signaling carried by the PDCCH, where the DCI signaling carries the first information, and the DCI signaling is used to activate the uplink CG resource.

enabling states of all HARQ processes corresponding to the uplink CG resources; or enabling states of all HARQ processes corresponding to a single CG index corresponding to the uplink CG resource, wherein the uplink CG resource is corresponding to at least two CG indexes; or, an enabling state corresponding to the single HARQ process corresponding to the uplink CG resource.

an uplink CG index identifier corresponding to the uplink CG resource;

Illustratively, the first information includes at least one of the following:

an enabling state of the HARQ process corresponding to the uplink resource;

priority of at least one logical channel corresponding to the uplink resource;

An identification of the first logical channel;

priority of the first logical channel;

The sending module 201 is configured to send a resource scheduling signaling of an uplink resource, where the resource scheduling signaling carries the first information, and the resource scheduling signaling includes downlink control information DCI signaling for scheduling the uplink mobile resource.

The embodiment of the application provides a data transmission system, which comprises a terminal and network side equipment, wherein the terminal is a data transmission device described in fig. 10, 11 and 12, and the network side equipment is a data transmission device described in fig. 13.

Referring to fig. 14, a block diagram of a structure of a terminal according to an embodiment of the present application is shown, where the terminal includes: a processor 131, a receiver 132, a transmitter 133, a memory 134, and a bus 135.

Processor 131 includes one or more processing cores, and processor 131 executes various functional applications and information processing by running software programs and modules.

The receiver 132 and the transmitter 133 may be implemented as one communication component, which may be a communication chip, in which a receiving module, a transmitting module, a modulation and demodulation module, etc. may be included for modulating and/or demodulating information and receiving or transmitting the information through a wireless signal.

The memory 134 is coupled to the processor 131 via a bus 135.

The memory 134 may be used to store at least one instruction that the processor 131 uses to execute to implement the various steps of the method embodiments described above.

Furthermore, the memory 134 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The application provides a computer readable storage medium, wherein at least one instruction is stored in the storage medium, and the at least one instruction is loaded and executed by the processor to implement the data transmission method provided by each method embodiment.

The application also provides a chip, which comprises a programmable logic circuit and/or program instructions and is used for realizing the data transmission method provided by each method embodiment when the chip runs.

The present application also provides a computer program product comprising one or more computer programs for implementing the data transmission method provided by the above-mentioned respective method embodiments when the computer program is executed by a processor.

Referring to fig. 15, a block diagram of a network side device according to an embodiment of the present application is shown, where the network side device includes: processor 141, receiver 142, transmitter 143, memory 144, and bus 145.

Processor 141 includes one or more processing cores and processor 11 executes various functional applications and information processing by running software programs and modules.

The receiver 142 and the transmitter 143 may be implemented as one communication component, which may be a communication chip, in which a receiving module, a transmitting module, a modulation and demodulation module, etc. may be included for modulating and/or demodulating information and receiving or transmitting the information through a wireless signal.

The memory 144 is coupled to the processor 141 via a bus 145.

The memory 144 may be used to store at least one instruction that the processor 141 uses to execute to implement the various steps of the method embodiments described above.

Furthermore, the memory 144 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The foregoing description of the preferred embodiments of the present application is not intended to limit the invention to the particular embodiments of the present application, but to limit the scope of the invention to the particular embodiments of the present application.

Claims

1. A method of data transmission, the method comprising:

the uplink resource comprises a resource corresponding to an HARQ process with a hybrid automatic repeat request (HARQ) function in a disabled state, and the first logic channel comprises a logic channel which allows transmission on the resource corresponding to the HARQ process in the disabled state;

the uplink resource includes an uplink configuration grant CG resource, where the CG resource corresponds to at least one CG index, each CG index corresponds to at least one HARQ process, and before the uplink transmission corresponding to the first logical channel is sent on the uplink resource according to the first information, the method further includes:

receiving the first information sent by the network side equipment, wherein the first information comprises any one of the following information:

enabling states of all HARQ processes corresponding to the uplink CG resources; wherein, the enabling states of all HARQ processes corresponding to the uplink CG resource are disabling states;

enabling states of all HARQ processes corresponding to a single CG index identifier corresponding to the uplink CG resource, wherein the uplink CG resource is corresponding to at least two CG index identifiers; wherein, the enabling states of all HARQ processes corresponding to the single CG index identifier corresponding to the uplink CG resource are disabling states;

And enabling states of all HARQ processes corresponding to the terminal, wherein the enabling states of all HARQ processes corresponding to the terminal are disabling states.

2. The method of claim 1, wherein the first information further comprises at least one of:

a HARQ process identifier in a de-enabling state corresponding to the uplink CG resource;

an HARQ process identifier in an enabling state corresponding to the uplink CG resource;

an identification of the first logical channel;

priority of the first logical channel;

3. The method according to claim 2, wherein the method further comprises:

and receiving a resource configuration signaling of the uplink CG resource, wherein the resource configuration signaling carries the first information, and the resource configuration signaling comprises a Radio Resource Control (RRC) signaling.

4. A method according to claim 3, wherein the RRC signaling comprises:

RRC signaling to configure type 1 uplink CG resources.

5. A method according to claim 3, wherein the RRC signaling comprises:

RRC signaling to configure type 2 uplink CG resources;

the method further comprises the steps of:

and receiving a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is used for indicating the activation state of the uplink CG resource, and the PDCCH carries the first information.

6. The method of claim 5, wherein the receiving a physical downlink control channel, PDCCH, comprises:

receiving a Downlink Control Information (DCI) signaling carried by the PDCCH, wherein the DCI signaling carries the first information;

and activating the uplink CG resource according to the DCI signaling.

7. The method of claim 2, wherein the first information further comprises at least one of:

an uplink CG index identifier corresponding to the uplink CG resource;

8. The method according to any one of claims 1 to 7, wherein the uplink transmission corresponding to the first logical channel includes at least one of:

uplink data corresponding to the first logic channel;

9. The method of claim 1, wherein after the uplink transmission corresponding to the first logical channel is sent on the uplink resource according to the first information, the method includes:

10. A method of data transmission, the method comprising:

transmitting first information, wherein the first information is used for indicating a terminal to transmit uplink transmission corresponding to a first logic channel on uplink resources;

The uplink resource includes an uplink configuration grant CG resource, the CG resource corresponds to at least one CG index, each CG index corresponds to at least one HARQ process, and the first information includes any one of the following information:

11. The method of claim 10, wherein the first information further comprises at least one of:

An identification of the first logical channel;

priority of the first logical channel;

12. The method of claim 11, wherein the transmitting the first information comprises:

and sending the resource configuration signaling of the uplink CG resource, wherein the resource configuration signaling carries the first information, and the resource configuration signaling comprises Radio Resource Control (RRC) signaling.

13. The method of claim 12, wherein the RRC signaling comprises:

RRC signaling to configure type 1 uplink CG resources.

14. The method of claim 12, wherein the RRC signaling comprises:

RRC signaling to configure type 2 uplink CG resources;

the sending the first information includes:

and sending a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is used for indicating the activation state of the uplink resource, and the PDCCH carries the first information.

15. The method of claim 14, wherein the transmitting the physical downlink control channel, PDCCH, comprises:

and sending Downlink Control Information (DCI) signaling carried by the PDCCH, wherein the DCI signaling carries the first information, and the DCI signaling is used for activating the uplink CG resource.

16. The method of claim 11, wherein the first information further comprises at least one of:

an uplink CG index identifier corresponding to the uplink CG resource;

17. The method according to any one of claims 10 to 16, wherein the uplink transmission corresponding to the first logical channel includes at least one of:

uplink data corresponding to the first logic channel;

18. A data transmission apparatus, the apparatus comprising:

the uplink resource comprises an uplink configuration authorized CG resource, the CG resource corresponds to at least one CG index, each CG index corresponds to at least one HARQ process, and the apparatus further includes a receiving module configured to receive the first information sent by a network side device, where the first information includes any one of the following information:

19. The apparatus of claim 18, wherein the first information further comprises at least one of:

an identification of the first logical channel;

priority of the first logical channel;

20. The apparatus of claim 19, wherein the receiving module is further configured to receive resource configuration signaling for the uplink CG resource, the resource configuration signaling carrying the first information, the resource configuration signaling comprising radio resource control RRC signaling.

21. The apparatus of claim 20, wherein the RRC signaling comprises:

RRC signaling to configure type 1 uplink CG resources.

22. The apparatus of claim 20, wherein the RRC signaling comprises:

RRC signaling to configure type 2 uplink CG resources;

the receiving module is used for:

and receiving a Physical Downlink Control Channel (PDCCH), wherein the PDCCH is used for indicating the activation state of the uplink resource, and the PDCCH carries the first information.

23. The apparatus of claim 22, further comprising a processing module,

the receiving module is used for: receiving a Downlink Control Information (DCI) signaling carried by the PDCCH, wherein the DCI signaling carries the first information;

the processing module is used for: and activating the uplink CG resource according to the DCI signaling.

24. The apparatus of claim 19, wherein the first information further comprises at least one of:

an uplink CG index identifier corresponding to the uplink CG resource;

25. The apparatus according to any one of claims 18 to 24, wherein the uplink transmission corresponding to the first logical channel includes at least one of:

Uplink data corresponding to the first logic channel;

26. The apparatus of claim 18, wherein the means for transmitting is further configured to:

27. A data transmission apparatus, the apparatus comprising:

28. The apparatus of claim 27, wherein the first information comprises at least one of:

an identification of the first logical channel;

priority of the first logical channel;

29. The apparatus of claim 28, wherein the means for transmitting is configured to:

and sending a resource configuration signaling of the uplink CG resource, wherein the resource configuration signaling carries the first information, and the resource configuration signaling comprises a Radio Resource Control (RRC) signaling.

30. The apparatus of claim 29, wherein the RRC signaling comprises:

RRC signaling to configure type 1 uplink CG resources.

31. The apparatus of claim 29, wherein the RRC signaling comprises:

RRC signaling to configure type 2 uplink CG resources;

the sending module is used for:

and sending a Physical Downlink Control Channel (PDCCH), wherein the content of the PDCCH indicates the uplink resource to be activated, and the PDCCH carries the first information.

32. The apparatus of claim 31, wherein the means for transmitting is configured to:

33. The apparatus of claim 28, wherein the first information further comprises at least one of:

an uplink CG index identifier corresponding to the uplink CG resource;

34. The apparatus according to any one of claims 28 to 33, wherein the uplink transmission corresponding to the first logical channel includes at least one of:

uplink data corresponding to the first logic channel;

35. A data transmission system, characterized in that the system comprises a terminal comprising the data transmission device according to any one of claims 18 to 26 and a network-side device comprising the data transmission device according to any one of claims 27 to 34.

36. A terminal comprising a processor and a memory storing at least one instruction for execution by the processor to implement the data transmission method of any one of the preceding claims 1 to 9.

37. A network side device comprising a processor and a memory storing at least one instruction for execution by the processor to implement the data transmission method of any of the preceding claims 10 to 17.

38. A computer readable storage medium storing at least one instruction for execution by a processor to implement the data transmission method of any one of the preceding claims 1 to 9 or to implement the data transmission method of any one of the preceding claims 10 to 17.

39. A chip comprising programmable logic circuits and/or program instructions for implementing a data transmission method according to any one of claims 1 to 9 or for implementing a data transmission method according to any one of claims 10 to 17 when the chip is run.