CN116347636A

CN116347636A - Data transmission method, control device and user equipment

Info

Publication number: CN116347636A
Application number: CN202310468999.1A
Authority: CN
Inventors: 冯媛; 袁剑; 齐翠玲
Original assignee: Beijing Gohigh Data Networks Technology Co ltd
Current assignee: Beijing Gohigh Data Networks Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-06-27

Abstract

The application provides a data transmission method, a control device and user equipment, and a method applied to a MAC layer, comprising the following steps: acquiring type indication information corresponding to a PDU to be transmitted, wherein the type indication information is used for indicating the PDU to be a data PDU or a status report control PDU; when the PDU is determined to be a status report control PDU according to the type indication information, qoS parameter information corresponding to the PDU is acquired, wherein the QoS parameter information is configured by a preset protocol layer or an RRC layer according to preset configuration information; and scheduling the transmission of the PDU according to the QoS parameter information. According to the method and the device, the corresponding type indication information is set for the state report control PDU, and the corresponding QoS parameter information is configured, so that the MAC layer can adopt different processing modes according to different types of PDUs, and can perform proper scheduling based on the QoS parameter information, and effective sending of the state report control PDU is guaranteed.

Description

Data transmission method, control device and user equipment

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a data transmission method, a control device, and a user equipment.

Background

The New Radio, abbreviated as NR, unicast introduces a sub-layer acknowledgement (Acknowledged Mode, abbreviated as AM) mode, and for the AM mode, the protocol explicitly proposes a trigger mechanism of a status report control protocol data unit (Protocol Data Unit, abbreviated as PDU) of a protocol layer (e.g., RLC (Radio Link Control, radio link layer control protocol)), and a priority of a status report control PDU (status report sent by a receiving end) is higher than that of a data PDU, but there is no specific mechanism to ensure that the status report control PDU can be sent more timely. The triggering of the generated status report control PDU is not timely in its transmission, which results in a number of problems including: the data of the transmitting end are piled up, and the time delay of the data to be transmitted is integrally increased; there is no way to send data retransmitted by an automatic repeat request (Automatic Retransmission reQuest, ARQ for short) within the time of the remaining packet delay budget (Packet Delay Budget, PDB for short), so that the transmitting end ARQ retransmission fails, etc. Since medium access control (Media Access Control, abbreviated MAC) layer scheduling is handled by quality of service (Quality of Service, abbreviated QoS), qoS cannot be changed when the MAC layer scheduling is performed, so that currently QoS of status report control PDUs is equivalent to QoS of traffic on a logical channel, so that priority scheduling of status report control PDUs may not be guaranteed, and since status report control PDUs are generated by a protocol layer, but transparent to the MAC layer, i.e. there is no way for the MAC layer to distinguish whether they are status report control PDUs or data PDUs, i.e. for the MAC scheduling entity to give higher scheduling priority to status report control PDUs. Therefore, effective transmission of the status report control PDU cannot be guaranteed, affecting system performance.

Disclosure of Invention

The technical purpose to be achieved by the embodiments of the present application is to provide a data transmission method, a control device and a user equipment, which are used for solving the problem that the current transmitting end cannot guarantee the effective transmission of the status report control PDU and affect the system performance.

In order to solve the above technical problems, an embodiment of the present application provides a data transmission method, which is applied to a MAC layer, and includes:

acquiring type indication information corresponding to a PDU to be transmitted, wherein the type indication information is used for indicating the PDU to be a data PDU or a status report control PDU;

when the PDU is determined to be the status report control PDU according to the type indication information, qoS parameter information corresponding to the PDU is acquired, wherein the QoS parameter information is configured by a preset protocol layer or a radio resource control (Radio Resource Control, RRC for short) layer according to preset configuration information;

and scheduling the PDU to be sent according to the QoS parameter information.

Specifically, according to the data transmission method described above, the preset configuration information includes at least one of the following:

protocol layer standard text explicit configuration information;

the RRC protocol specification pre-configures default information;

RRC pre-configuration information;

RRC reconfiguration information.

Specifically, according to the data transmission method described above, the QoS parameter information includes at least one of the following:

a remaining packet delay budget (Packet Delay Budget, PDB for short);

QoS index;

per packet priority (Per Packet Per Priority, PPPP for short);

packet reception reliability (Packet Reception Reliability, PRR for short).

Specifically, according to the data transmission method, the parameters in the QoS parameter information are fixed values or values associated with preset associated parameters;

wherein the preset association parameters include at least one of the following:

a data radio bearer (Data Radio Bearer, abbreviated DRB);

signaling radio bearers (Signaling Radio Bearer, SRBs for short);

a service application identifier (Application Identifier, AID for short);

a service period;

packet inter-arrival;

subcarrier spacing (SCS);

the acknowledgement type contained in the status report control PDU; wherein, the first priority of the parameters corresponding to the status report control PDU containing the negative acknowledgement NACK is higher than the second priority of the parameters corresponding to the status report control PDU containing the acknowledgement ACK only.

Another embodiment of the present application further provides a data transmission method, applied to a preset protocol layer, including:

transmitting a PDU to be transmitted and type indication information of the PDU to a MAC layer, wherein the type indication information is used for indicating that the PDU is a data PDU or a status report control PDU.

Specifically, the data transmission method as described above further includes:

according to protocol layer standard text dominant configuration information, configuring partial parameters or all parameters in QoS parameter information corresponding to the status report control PDU, wherein the parameters in the QoS parameter information are fixed values or values associated with preset associated parameters;

DRB；

SRB；

a service AID;

a service period;

packet inter-arrival

SCS；

Still another embodiment of the present application provides a control apparatus applied to a MAC layer, including:

the device comprises a first processing module, a second processing module and a control module, wherein the first processing module is used for acquiring type indication information corresponding to a PDU to be sent, and the type indication information is used for indicating the PDU to be a data PDU or a status report control PDU;

the second processing module is used for acquiring QoS parameter information corresponding to the PDU when the PDU is determined to be the status report control PDU according to the type indication information, wherein the QoS parameter information is configured by a preset protocol layer or an RRC layer according to preset configuration information;

and a third processing module, configured to schedule transmission of the PDU according to the QoS parameter information.

Still another embodiment of the present application provides a control apparatus, applied to a protocol layer, including:

and the third processing module is used for transmitting the PDU to be transmitted and the type indication information of the PDU to the MAC layer, wherein the type indication information is used for indicating that the PDU is a data PDU or a status report control PDU.

Another embodiment of the present application further provides a user equipment, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program when executed by the processor implements the steps of the data transmission method applied to the MAC layer as described above, or implements the steps of the data transmission method applied to the protocol layer as described above.

Still another embodiment of the present application provides a computer readable storage medium having a computer program stored thereon, which when executed by a processor, implements the steps of the data transmission method applied to the MAC layer as described above, or implements the steps of the data transmission method applied to the protocol layer as described above.

Compared with the prior art, the data transmission method, the control device and the user terminal provided by the embodiment of the application have the following beneficial effects:

according to the method and the device, the corresponding type indication information is set for the PDU generated by the preset protocol layer (RLC layer or PCDP layer), particularly the status report control PDU, so that the MAC layer can adopt different processing modes according to different types of PDUs, and meanwhile, qoS parameter information is independently configured for the status report control PDU, so that when the status report control PDU is sent, proper scheduling can be carried out based on the QoS parameter information, and effective sending of the status report control PDU is guaranteed.

Drawings

Fig. 1 is a flow chart of a data transmission method applied to a MAC layer in the present application;

fig. 2 is a flow chart of a data transmission method applied to a preset protocol layer in the present application;

fig. 3 is a schematic structural diagram of a control device applied to a MAC layer in the present application;

fig. 4 is a schematic structural diagram of a control device applied to a preset protocol layer in the present application.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present application more apparent, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the present application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present application, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the examples provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

Referring to fig. 1, an embodiment of the present application provides a data transmission method, which is applied to a MAC layer, and includes:

step S101, obtaining type indication information corresponding to a PDU to be sent, wherein the type indication information is used for indicating that the PDU is a data PDU or a status report control PDU; in this step, before the MAC layer performs the transmission of the PDU to be transmitted, in order to ensure the effective transmission of the status report control PDU, the type of the PDU to be transmitted is pre-determined, specifically, the type indication information corresponding to the PDU to be transmitted is obtained, and whether the PDU is the status report control PDU is determined according to the type indicated by the type indication information. In a specific embodiment, the type indication information is carried in a packet-following primitive of the PDU, so that the MAC layer can effectively identify and acquire the type indication information. In another embodiment, the type indication information may be carried in the PDU or transmitted as a separate information from a predetermined protocol layer corresponding to the PDU to the MAC layer.

It should be noted that, english corresponding to the status report control PDU in this document is status report PDU, and generally status report PDU is called status report protocol data unit, but since this scheme is applicable to RLC layer and packet data convergence protocol (Packet Data Convergence Protocol, abbreviated PDCP) layer, status report PDU is called status report control protocol data unit, and is abbreviated herein as status report control PDU.

It should be noted that, the preset protocol layers described herein include, but are not limited to, a protocol layer such as an RLC layer and a PDCP layer, which need to send a status report, that is, the technical solution in the present application may be implemented based on one preset protocol layer, respectively.

Step S102, when the PDU is determined to be the status report control PDU according to the type indication information, qoS parameter information corresponding to the PDU is obtained, wherein the QoS parameter information is obtained by a preset protocol layer or an RRC layer according to preset configuration information; in this step, if the PDU to be sent is determined to be the status report control PDU according to the type indication information, the QoS parameter information corresponding to the PDU is obtained, which is different from the QoS parameter information corresponding to the existing PDU, and the QoS parameter information obtained in the present application is not equivalent to the QoS of the service on the corresponding logical channel, but is configured by the preset protocol layer or the RRC layer according to the preset configuration information, so that it is beneficial to avoid the occurrence of the situation that the parameter setting in the service QoS and the status report control PDU preferentially send conflicts.

It should be noted that the preset protocol layer in the current step corresponds to the protocol layer that generates the PDU.

It should be further noted that, if the PDU is determined to be a data PDU according to the type indication information, the PDU is processed according to a processing scheme in the prior art, which is not described herein.

It should be noted that, whether the QoS parameter information is configured through the preset protocol layer or configured through the RRC layer, the MAC layer may obtain the QoS parameter information corresponding to the status report control PDU through product implementation, and a specific acquisition manner is not described herein.

And step S103, scheduling the transmission of the PDU according to the QoS parameter information. In this step, after obtaining the QoS parameter information corresponding to the status report control PDU, the transmission of the PDU is scheduled based on the QoS parameter information, so as to ensure the effective transmission of the status report control PDU.

In summary, the present application sets corresponding type indication information for a PDU generated by a preset protocol layer, especially for a status report control PDU, so that the MAC layer may take different processing modes according to different types of PDUs, and simultaneously, separately configures QoS parameter information for the status report control PDU, so that when sending the status report control PDU, appropriate scheduling may be performed based on the QoS parameter information, thereby being beneficial to ensuring effective sending of the status report control PDU.

protocol layer standard text explicit configuration information;

the RRC protocol specification pre-configures default information;

RRC pre-configuration information;

RRC reconfiguration information.

The preset configuration information is exemplified as follows.

First embodiment: when the QoS parameter information is configured by a preset protocol layer, the preset configuration information is explicit configuration information of a protocol layer standard text, for example, a special field is added in the protocol layer standard text to indicate the QoS parameter information, and when the protocol layer is configured, the QoS parameter information is synchronously configured; when the preset protocol layer is an RLC layer, the standard text of the protocol layer is an RLC standard text, and the specific priority of the RLC status report, qoS parameters such as PDB and the like are explicitly defined in the RLC standard text; the same applies when the preset protocol layer is the PDCP layer.

Second embodiment: when the QoS parameter information is configured by the RRC layer, the preset configuration information is at least one of RRC protocol specification preset default information, RRC preset information, and RRC reconfiguration information, preferably one of them.

Wherein, the third embodiment: under the condition that the preset configuration information is RRC protocol specification preset default information, the special field is added in the RRC protocol specification preset default information to indicate QoS parameter information, and when the RRC layer is configured, the QoS parameter information is synchronously configured; the RRC protocol specification preconfiguration default information is preferably preconfiguration default information corresponding to the 3gpp TS 38.331 standard. For example: the special field is preferably set in the STCH configuration field, and the following embodiments are illustrative of the STCH configuration field after adding the special field:

the RLC-status-report-PDB is a dedicated field exemplified by PDBs in QoS parameters. In this embodiment PDB is configured as a fixed value.

It should be noted that, the specific description and the specific position of the above specific fields are only for the convenience of understanding of those skilled in the art, and the specific description and the specific position of the specific fields are only illustrated by taking the PDB in the QoS parameters as an example in the RRC protocol specification pre-configuration default information, and the PDB has no association relationship with the specific DRB; on the premise of the technical principle of the application, based on actual requirements, the QoS parameters, the specific descriptions, the specific positions and the like corresponding to the special fields are changed, for example, PDB is modified into PPPP and the like, which belong to the protection scope of the application.

A fourth embodiment; in the case that the preset configuration information is RRC preset information, the special field is added in the RRC preset information to indicate the QoS parameter information, and the QoS parameter information is synchronously configured when the RRC layer performs the preset configuration. For example: the special field is preferably set in the sl-RLC-Config-r16 field, and the following embodiments are illustrative of the sl-RLC-Config-r16 field after adding the special field:

further, for each logical channel, performing a corresponding configuration;

wherein RLC-status-report-PDB inter (… …) operation, -Need M is a dedicated field exemplified by PDB in QoS parameters.

It should be noted that, the specific description and the specific location of the above specific fields are merely for the convenience of understanding of those skilled in the art, the specific description and the specific location are illustrated in the RRC pre-configuration information by taking the PDB in the QoS parameter as an example, and the PDB is associated with a specific DRB and the like; on the premise of the technical principle of the present application, based on actual requirements, the QoS parameters, the specific descriptions, the specific positions, and the like corresponding to the dedicated fields are changed, for example, the PDB is modified to PPPP, and the association relation between the QoS parameters and the association parameters (not limited to associating with a Resource Block (RB) ID) is changed, which belongs to the protection scope of the present application.

Fifth embodiment: in the case that the preset configuration information is RRC reconfiguration information, the QoS parameter information is indicated by adding a dedicated field to the RRC reconfiguration information, and the QoS parameter information is synchronously configured when the RRC layer performs reconfiguration. For example: the special field is preferably set in the rrcrecnonfigurationsidelink-IEs-r 16 field, and the following examples are illustrative of the rrcrecnonfigurationsidelink-IEs-r 16 field after adding the special field:

wherein RLC-status-report-PDB inter (… …) operation, -Need M is a dedicated field exemplified by PDB in QoS parameters. In this embodiment PDB is configured as a fixed value.

It should be noted that, the specific description and the specific position of the dedicated field are only for the convenience of understanding of those skilled in the art, the specific description and the specific position of the dedicated field are only schematic in the RRC reconfiguration information by taking the PDB in the QoS parameter as an example, and on the premise of the technical principle of the present application, the change of the QoS parameter, the specific description and the specific position of the dedicated field, for example, the modification of the PDB to PPPP, etc., all belong to the protection scope of the present application.

PDB；

QoS index;

PPPP；

PRR。

in this embodiment, specific parameters in QoS parameter information are illustrated, so that after the MAC layer obtains the QoS parameter information, the MAC layer may determine the scheduling sequence corresponding to the status report control PDU through PDB, qoS index, PPPP, PRR, etc., so that the MAC layer may schedule the status report control PDU in time, and ensure effective transmission of the status report control PDU. For example: reduce PDB corresponding to the status report control PDU, increase PPPP corresponding to the status report control PDU, increase PRR corresponding to the status report control PDU, change QoS index corresponding to the status report control PDU, etc.

It should be noted that, the QoS parameter information may further include other parameters that may affect scheduling of the status report control PDU.

DRB；

SRB；

a service AID;

a service period;

packet inter-arrival

SCS；

In this embodiment, when configuring the QoS parameter information, the parameter in the QoS parameter information may be configured as a fixed value or as a value associated with a preset association parameter. The following is an example of PDB in QoS parameter information:

for example: configuring the PDB with a fixed value, for example, a fixed duration, in RRC pre-configuration information or RRC protocol specification pre-configuration default information, which is independent of a specific DRB, etc.;

or configuring the PDB as a value associated with the specific DRB/SRB in the RRC reconfiguration information, so that when the PDB is acquired, the corresponding PDB is obtained through the associated DRB/SRB and a preset association table or association formula and the like.

It should be noted that the foregoing is only illustrative of taking PDB and DRB/SRB as examples, and on the premise of the technical principle of the present application, changing parameters in the QoS parameter information and/or preset associated parameters based on actual requirements, for example, modifying PDB to PPPP, modifying DRB to AID, will all belong to the protection scope of the present application.

In another embodiment, when the parameters in the QoS parameter information are configured to a value associated with the acknowledgement type included in the status report control PDU, a first priority of the parameters corresponding to the status report control PDU including a negative acknowledgement NACK is given preference to a second priority of the parameters corresponding to the status report control PDU including only an acknowledgement ACK. For example: the PDB in the QoS parameter information corresponding to the state report control PDU containing NACK is smaller than the PDB in the QoS parameter information corresponding to the state report control PDU containing acknowledgement ACK only; and/or, the PRR in the QoS parameter information corresponding to the status report control PDU including NACK is higher than the PRR in the QoS parameter information corresponding to the status report control PDU including only acknowledgement ACK; and/or, the PPPP in the QoS parameter information corresponding to the status report control PDU including NACK is prioritized over the PPPP in the QoS parameter information corresponding to the status report control PDU including only acknowledgement ACK. When the MAC layer acquires the QoS parameter information, the QoS parameter information can be determined according to the response type contained in the status report control PDU, and the sequence of a plurality of status report control PDUs is scheduled, so that the priority transmission of the status report control PDU with higher importance is further ensured.

Referring to fig. 2, another embodiment of the present application further provides a data transmission method, which is applied to a preset protocol layer, including:

step S201, transmitting the PDU to be transmitted and the type indication information of the PDU to the MAC layer, wherein the type indication information is used for indicating that the PDU is a data PDU or a status report control PDU.

In this embodiment, the preset protocol layer generates type indication information related to the PDU when the PDU is generated, and further, when transmitting the PDU to be sent to the MAC layer, the type indication information is synchronously transmitted, so that the MAC layer can determine whether the PDU is a data PDU or a status report control PDU according to the type indication information, so that the MAC layer performs corresponding scheduling on the status report control PDU, and effective sending of the status report control PDU is ensured. In a specific embodiment, the type indication information is carried in a packet-following primitive of the PDU, so that the MAC layer can effectively identify and acquire the type indication information. In another embodiment, the type indication information may be carried in the PDU or transmitted as a separate information from a predetermined protocol layer corresponding to the PDU to the MAC layer.

It should be noted that, the preset protocol layers described in the present embodiment include, but are not limited to, a protocol layer such as an RLC layer and a PDCP layer, which need to send a status report, that is, the technical solution in the present embodiment may be implemented based on one preset protocol layer, respectively.

Specifically, the data transmission method as described above further includes:

DRB；

SRB；

a service AID;

a service period;

packet inter-arrival;

In this embodiment, when the QoS parameter information corresponding to the status report control PDU is configured by a preset protocol layer, the preset configuration information is explicit configuration information of a protocol layer standard text, for example, a dedicated field is added in the protocol layer standard text to indicate the QoS parameter information, and when the protocol layer is configured, the QoS parameter information is synchronously configured; when the preset protocol layer is an RLC layer, the standard text of the protocol layer is an RLC standard text.

In addition, when configuring the QoS parameter information, the parameter in the QoS parameter information may be configured as a fixed value or as a value associated with a preset association parameter. The following is an example of PDB in QoS parameter information:

or configuring the PDB as a value associated with the specific DRB/SRB in the RRC reconfiguration information, so that when the PDB is acquired, the corresponding PDB is obtained through the associated DRB/SRB and a preset association table or association formula and the like. It should be noted that the foregoing is only illustrative of taking PDB and DRB/SRB as examples, and on the premise of the technical principle of the present application, changing parameters in the QoS parameter information and/or preset associated parameters based on actual requirements, for example, modifying PDB to PPPP, modifying DRB to AID, will all belong to the protection scope of the present application. In a specific embodiment, the specific parameter in the QoS parameter information may be at least one of PDB, qoS index, PPPP and PRR, so that after the MAC layer obtains the QoS parameter information, the MAC layer may determine the scheduling sequence of the corresponding status report control PDU through PDB, qoS index, PPPP and/or PRR, so that the MAC layer may schedule the status report control PDU in time, and ensure effective transmission of the status report control PDU. For example: reduce PDB corresponding to the status report control PDU, increase PPPP corresponding to the status report control PDU, increase PRR corresponding to the status report control PDU, change QoS index corresponding to the status report control PDU, etc.

In another embodiment, when the PDB is configured to a value associated with the acknowledgement type included in the status report control PDU, the first priority of the parameter corresponding to the status report control PDU including the negative acknowledgement NACK is prioritized over the second priority of the parameter corresponding to the status report control PDU including only the acknowledgement ACK. For example: the PDB in the QoS parameter information corresponding to the state report control PDU containing NACK is smaller than the PDB in the QoS parameter information corresponding to the state report control PDU containing acknowledgement ACK only; and/or, the PRR in the QoS parameter information corresponding to the status report control PDU including NACK is higher than the PRR in the QoS parameter information corresponding to the status report control PDU including only acknowledgement ACK; and/or, the PPPP in the QoS parameter information corresponding to the status report control PDU including NACK is prioritized over the PPPP in the QoS parameter information corresponding to the status report control PDU including only acknowledgement ACK. When the MAC layer acquires the QoS parameter information, the QoS parameter information can be determined according to the response type contained in the status report control PDU, and the sequence of a plurality of status report control PDUs is scheduled, so that the priority transmission of the status report control PDU with higher importance is further ensured. .

It should be noted that, the trigger conditions for generating the status report control PDU can be regarded as two types: active triggering and passive triggering.

Wherein, the passive trigger (namely, the request of the data PDU transmitting end)

The Sequence Number (SN) of the received RLC PDU (segment) carrying the search information may be in any one of the status intervals within the receiving window. If the SN is still in the hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, abbreviated HARQ) reorder status interval, no processing is temporarily done until the SN falls into the status interval determined by the HARQ reorder before triggering a status report. Since unnecessary retransmission at the transmitting end is caused if the status report is triggered immediately at this time, in the RLC AM related protocol, the HARQ reordering timer time is not defined separately, and the status report is required to be transmitted after the waiting reordering timer times out.

Active triggering (i.e. active reporting of data receiving terminal)

Triggering after detecting errors (HARQ residual errors and ARQ retransmission errors) is done in real time.

Further, the status report control PDU is composed of a control PDU header and a payload. Payload= (1 group) ACK field + (0 group or groups) NACK field. That is, the content of the status report includes two parts, a positive acknowledgement part (ack_sn) and a negative acknowledgement part (nack_sn). Wherein the negative acknowledgement part is an SN list or range of service data units (Service Data Unit, abbreviated SDU) for which reception failure has been detected in the current reception window, and is arranged in ascending order of SN and byte segments.

Referring to fig. 3, still another embodiment of the present application further provides a control apparatus, applied to a MAC layer, including:

a first processing module 301, configured to obtain type indication information corresponding to a PDU to be sent, where the type indication information is used to indicate that the PDU is a data PDU or a status report control PDU;

a second processing module 302, configured to obtain QoS parameter information corresponding to the PDU when the PDU is determined to be the status report control PDU according to the type indication information, where the QoS parameter information is configured by a preset protocol layer or an RRC layer according to preset configuration information;

and a third processing module 303, configured to schedule transmission of the PDU according to the QoS parameter information.

Specifically, the control device as described above, the preset configuration information includes at least one of the following:

protocol layer standard text explicit configuration information;

the RRC protocol specification pre-configures default information;

RRC pre-configuration information;

RRC reconfiguration information.

Specifically, the control device as described above, the QoS parameter information includes at least one of:

PDB；

QoS index;

PPPP；

PRR。

further, in the control device as described above, the QoS parameter information further includes: and the response type priority, wherein the first priority corresponding to the status report control PDU containing NACK is higher than the second priority corresponding to the status report control PDU containing only ACK.

Specifically, the control device as described above, wherein the parameter in the QoS parameter information is a fixed value or a value associated with a preset association parameter;

DRB；

SRB；

a service AID;

a service period;

packet inter-arrival;

SCS；

The embodiment of the control device applied to the MAC layer of the present application is a device corresponding to the embodiment of the data transmission method applied to the MAC layer, and all implementation means in the embodiment of the method are applicable to the embodiment of the device, so that the same technical effects can be achieved. Referring to fig. 4, still another embodiment of the present application further provides a control apparatus, applied to a protocol layer, including:

a fourth processing module 401 is configured to transmit, to a MAC layer, a PDU to be transmitted and type indication information of the PDU, where the type indication information is used to indicate that the PDU is a data PDU or a status report control PDU.

Specifically, the control device as described above further includes:

a fifth processing module, configured to configure a part of or all parameters in QoS parameter information corresponding to the status report control PDU according to protocol layer standard text explicit configuration information, where a parameter in the QoS parameter information is a fixed value or a value associated with a preset association parameter;

DRB；

SRB；

a service AID;

a service period;

packet inter-arrival

SCS；

The embodiment of the control device applied to the preset protocol layer is a device corresponding to the embodiment of the data transmission method applied to the preset protocol layer, and all implementation means in the embodiment of the method are applicable to the embodiment of the device, so that the same technical effect can be achieved.

Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.

While the foregoing is directed to the preferred embodiments of the present application, it should be noted that modifications and adaptations to those embodiments may occur to one skilled in the art and that such modifications and adaptations are intended to be comprehended within the scope of the present application without departing from the principles set forth herein.

Claims

1. A data transmission method applied to a medium access control MAC layer, comprising:

acquiring type indication information corresponding to a Protocol Data Unit (PDU) to be transmitted, wherein the type indication information is used for indicating the PDU to be a data PDU or a status report control PDU;

when the PDU is determined to be the status report control PDU according to the type indication information, qoS parameter information corresponding to the PDU is acquired, wherein the QoS parameter information is configured by a preset protocol layer or a radio resource control RRC layer according to preset configuration information;

and scheduling the PDU to be sent according to the QoS parameter information.

2. The data transmission method according to claim 1, wherein the preset configuration information includes at least one of:

protocol layer standard text explicit configuration information;

the RRC protocol specification pre-configures default information;

RRC pre-configuration information;

RRC reconfiguration information.

3. The data transmission method according to claim 1, wherein the QoS parameter information includes at least one of:

a remaining packet delay budget PDB;

QoS index;

priority PPPP per packet;

packet reception reliability PRR.

4. The data transmission method according to claim 1, wherein the parameter in the QoS parameter information is a fixed value or a value associated with a preset association parameter;

a data radio bearer, DRB;

signaling a radio bearer, SRB;

service application identification AID;

a service period;

packet inter-arrival;

a subcarrier spacing SCS;

5. A data transmission method applied to a preset protocol layer, comprising:

6. The data transmission method according to claim 5, further comprising:

DRB；

SRB；

a service AID;

a service period;

packet inter-arrival;

SCS；

7. A control apparatus applied to a MAC layer, comprising:

8. A control apparatus for use in a protocol layer, comprising:

9. A user equipment comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data transmission method applied to the MAC layer as claimed in any one of claims 1 to 4 or the steps of the data transmission method applied to the protocol layer as claimed in claim 5 or 6.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the data transmission method applied to the MAC layer as claimed in any one of claims 1 to 4, or the steps of the data transmission method applied to the protocol layer as claimed in claim 5 or 6.