WO2024109563A1

WO2024109563A1 - Adaptive grant-free method and apparatus, terminal, and network side device

Info

Publication number: WO2024109563A1
Application number: PCT/CN2023/130999
Authority: WO
Inventors: 刘康怡; 柴丽; 陈宁宇; 刘亮
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2022-11-22
Filing date: 2023-11-10
Publication date: 2024-05-30
Also published as: CN118075910A

Abstract

The present application provides an adaptive grant-free method and apparatus, a terminal, and a network side device. The method comprises: when a grant-free transmission mode is activated, receiving configuration information of a candidate transmission occasion sent by a network side device; and if it is determined that data transmission cannot be performed at an expected transmission occasion corresponding to the grant-free transmission mode, performing data transmission at the candidate transmission occasion according to the configuration information, wherein the position of the candidate transmission occasion is different from that of the expected transmission occasion. According to embodiments of the present application, the configuration of the candidate transmission occasion can adapt to a transmission solution determined when the size of a transport block does not meet grant-free requirements and/or a transmission time of a data packet jitters, thereby solving the problem of mismatching between a grant-free period and an actual data arrival period caused by network jitter problems.

Description

Adaptive scheduling-free method, device, terminal and network side equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with application number 202211465854.8 and application date November 22, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference.

Technical Field

The present application relates to the field of communication technology, and in particular to an adaptive scheduling-free method, apparatus, terminal and network-side equipment.

Background technique

In Long Term Evolution (LTE) and New Radio (NR) services, for services with a relatively fixed packet size generated per unit time, or with periodic data streams, such as voice services or other industrial control messages, the scheduling-free or semi-continuous scheduling method can be used.

At present, the cycles of uplink free scheduling and downlink semi-continuous scheduling are fixed. In some scenarios, due to the influence of the application layer itself, the distribution network, and the terminal computing power, the application layer generates frames that are not always strictly in accordance with the cycle, but fluctuate around the cycle. This phenomenon is called jitter. Therefore, the fixed cycle in the existing free scheduling or semi-continuous scheduling causes a mismatch between free scheduling and real data transmission, and may further lead to increased empty scheduling or delay, which is not desirable for services in such scenarios.

Summary of the invention

The purpose of the present application is to provide an adaptive scheduling-free method, apparatus, terminal and network-side equipment, which solves the mismatch problem between scheduling-free and real data transmission caused by the fixed period in the existing scheduling-free or semi-continuous scheduling.

To achieve the above object, an embodiment of the present application provides an adaptive scheduling-free method, which is applied to a terminal, including:

When the scheduling-free transmission mode is activated, receiving configuration information of candidate transmission opportunities sent by a network-side device;

If it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, data transmission is performed at the candidate transmission opportunity according to the configuration information;

The candidate transmission timing is at a different location from the expected transmission timing.

Optionally, the configuration information includes at least one of the following:

the number of candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

A time offset between the expected transmission opportunity and the nearest candidate transmission opportunity;

Transmission instructions;

Disable registration of retransmission timer information.

Optionally, the scheduling-free transmission mode includes at least one of the following:

Uplink Configuration Grant (Configured Grant, CG);

Downlink Semi-Persistent Scheduling (SPS).

Optionally, the determining that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode includes at least one of the following:

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than the second threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, determining that data transmission cannot be performed at the expected transmission opportunity;

If no data is received at the expected transmission timing, determining that data transmission cannot be performed at the expected transmission timing;

If a transmission indication sent by the network side device is received before the expected transmission timing, it is determined that data transmission cannot be performed at the expected transmission timing.

Optionally, the method further includes any one of the following:

Receiving a configuration information activation signaling sent by the network side device;

Send a configuration information activation signaling to the network side device.

Optionally, the transmitting data at a candidate transmission opportunity according to the configuration information includes at least one of the following:

If there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, selecting a first candidate transmission opportunity after the expected transmission opportunity for data transmission according to the configuration information;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold or greater than the second threshold, selecting a second candidate transmission opportunity for data transmission according to the configuration information, and the transmission block size (Transport Block Size, TBS) of the second candidate transmission opportunity is larger than the data to be transmitted;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold or greater than the second threshold, and there is no candidate transmission opportunity with a TBS greater than the data to be transmitted, the third candidate transmission opportunity with the largest TBS is selected for data transmission according to the configuration information.

Optionally, the second candidate transmission timing is a candidate transmission timing with a smallest TBS among all candidate transmission timings whose TBS is greater than that of the data to be transmitted.

Optionally, the method further includes:

Sending first indication information to a network side device, where the first indication information is used to indicate that a transmission timing of a scheduling-free transmission is modified to a candidate transmission timing.

Optionally, the method further includes:

Receive second indication information sent by a network side device, where the second indication information is used to indicate that the expected transmission opportunity is released.

Optionally, the method further includes:

Receiving deactivation information of scheduling-free transmission sent by a network side device;

According to the deactivation information, the scheduling-free transmission is terminated and the configuration information is removed.

To achieve the above object, an embodiment of the present application provides an adaptive scheduling-free method, which is applied to a network side device, including:

When the scheduling-free transmission mode is activated, it is determined that candidate transmission opportunities need to be configured according to the service type;

Sending configuration information of candidate transmission opportunities to the terminal;

The candidate transmission timing is located at a different position from the expected transmission timing corresponding to the scheduling-free transmission mode.

the number of candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

Transmission instructions;

Disable registration of retransmission timer information.

Uplink CG;

Downlink SPS.

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than the fourth threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If a transmission indication sent by the terminal is received before the expected transmission timing, it is determined that data transmission cannot be performed at the expected transmission timing.

Optionally, the method further includes any one of the following:

Sending a configuration information activation signaling to the terminal;

Receive a configuration information activation signaling sent by the terminal.

If there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, selecting a fourth candidate transmission opportunity after the expected transmission opportunity for data transmission according to the configuration information;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold or greater than the fourth threshold, select a fifth candidate transmission opportunity for data transmission according to the configuration information, and the TBS of the fifth candidate transmission opportunity is greater than the data to be transmitted;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold or greater than the fourth threshold, and there is no candidate transmission opportunity with a TBS greater than the data to be transmitted, the sixth candidate transmission opportunity with the largest TBS is selected for data transmission according to the configuration information.

Optionally, the fifth candidate transmission timing is a candidate transmission timing with a smallest TBS among all candidate transmission timings whose TBS is greater than that of the data to be transmitted.

Optionally, the method further includes:

Sending second indication information to the terminal, where the second indication information is used to indicate that the expected transmission opportunity is released.

Optionally, the method further includes:

The first indication information sent by the terminal is received, where the second indication information is used to indicate that a transmission timing of the scheduling-free transmission is modified to a candidate transmission timing.

Optionally, the method further includes:

Send deactivation information of scheduling-free transmission to the terminal.

To achieve the above object, an embodiment of the present application provides an adaptive scheduling-free device, which is applied to a terminal, including:

A first receiving module, configured to receive configuration information of candidate transmission opportunities sent by a network side device when the scheduling-free transmission mode is activated;

A first transmission module, configured to, if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, perform data transmission at a candidate transmission opportunity according to the configuration information;

To achieve the above object, an embodiment of the present application provides an adaptive scheduling-free device, which is applied to a network side device, including:

A first determination module is used to determine the need to configure a candidate transmission opportunity according to a service type when the scheduling-free transmission mode is activated;

A first sending module, used for sending configuration information of candidate transmission opportunities to a terminal;

A second transmission module, configured to, if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, perform data transmission at a candidate transmission opportunity according to the configuration information;

To achieve the above object, an embodiment of the present application provides a terminal, including a processor and a transceiver;

The transceiver is used to: when the scheduling-free transmission mode is activated, receive configuration information of candidate transmission opportunities sent by a network side device;

The processor is configured to: if it is determined that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode, perform data transmission at the candidate transmission timing according to the configuration information;

To achieve the above object, an embodiment of the present application provides a network side device, including a processor and a transceiver;

The processor is used to: when the scheduling-free transmission mode is activated, determine the need to configure the candidate transmission opportunity according to the service type;

The transceiver is used to: send configuration information of candidate transmission opportunities to the terminal;

The processor is further configured to: if it is determined that data cannot be transmitted at the expected transmission timing corresponding to the scheduling-free transmission mode transmission, then performing data transmission at the candidate transmission opportunity according to the configuration information;

To achieve the above-mentioned purpose, an embodiment of the present application provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the above-mentioned adaptive scheduling-free method are implemented.

To achieve the above object, an embodiment of the present application provides an electronic device, comprising: a processor; and a memory for storing a computer program that can be run on the processor. The processor is configured to implement the steps of the above-mentioned adaptive scheduling-free method when running the computer program.

To achieve the above objectives, an embodiment of the present application provides a computer program product including instructions, and when the instructions are executed by a processor, the processor executes the steps of the above-mentioned adaptive scheduling-free method.

The beneficial effects of the above technical solution of the present application are as follows:

In the embodiment of the present application, when the scheduling-free transmission mode is activated, the network side device configures the configuration information of the candidate transmission opportunity for the terminal; if the terminal determines that it cannot transmit data at the expected transmission opportunity corresponding to the scheduling-free transmission mode, it transmits data at the candidate transmission opportunity according to the configuration information. By configuring the candidate transmission opportunity, it can adapt to the transmission scheme when the transmission block size does not meet the scheduling-free requirements and/or the transmission time of the data packet jitters, and solve the problem of mismatch between the scheduling-free period and the actual data arrival period caused by the network jitter problem.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a flow chart of an adaptive scheduling-free method according to an embodiment of the present application;

FIG2 is a schematic diagram of scheduling-free parameters according to an embodiment of the present application;

FIG3 is a schematic diagram of a flow chart of an adaptive scheduling-free method according to an embodiment of the present application;

FIG4 is a schematic diagram of a flow chart of an adaptive scheduling-free method according to an embodiment of the present application;

FIG5 is a schematic diagram of the structure of an adaptive scheduling-free device according to an embodiment of the present application;

FIG6 is a schematic diagram of the structure of an adaptive scheduling-free device according to an embodiment of the present application;

FIG7 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

FIG8 is a schematic diagram of the structure of a network side device according to an embodiment of the present application;

FIG9 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

FIG. 10 is a schematic diagram of the structure of a network side device according to an embodiment of the present application.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present application clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the various embodiments of the present application, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Additionally, the terms "system" and "network" are often used interchangeably herein.

In the embodiments provided in the present application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.

As shown in FIG1 , an embodiment of the present application provides an adaptive scheduling-free method, which is applied to a terminal. The method includes:

Step 101: When the scheduling-free transmission mode is activated, receiving configuration information of candidate transmission opportunities sent by a network side device;

Step 102: If it is determined that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode, data transmission is performed at a candidate transmission timing according to the configuration information; wherein the candidate transmission timing is at a different position from the expected transmission timing.

In this embodiment, when the uplink and downlink scheduling-free is activated or after it is activated, the network side device can determine whether it is necessary to configure the candidate transmission opportunity according to the current service type. For example: determine whether the current service is a live broadcast, video, virtual reality (VR), augmented reality (AR), etc. that requires terminal uplink streaming media data (such as video frames). If so, it is necessary to configure the candidate transmission opportunity; or, the network side device can also determine whether it is necessary to configure the candidate transmission opportunity according to whether the logical channel carries the above-mentioned service. If so, it is necessary to configure the candidate transmission opportunity; optionally, the network side device can also determine whether it is necessary to configure the candidate transmission opportunity according to the quality of service (QoS) information of the current service. For example, if the QoS information of the current service is greater than or less than a predetermined threshold, it is necessary to configure the candidate transmission opportunity.

After determining that the candidate transmission opportunity needs to be configured, the network side device sends the configuration information of the candidate transmission opportunity to the terminal. When the terminal is transmitting data, if it can transmit data at the expected transmission opportunity of the current scheduling-free transmission configuration, Then the candidate transmission opportunity does not need to be used, that is, the terminal does not need to perform any additional operations. If the terminal determines that data cannot be transmitted at the expected transmission opportunity of the current scheduling-free transmission configuration, data can be transmitted at the corresponding candidate transmission opportunity according to the configuration information.

In an embodiment of the present application, the data transmission may include uplink data transmission and/or downlink data reception. That is, if the terminal determines that it cannot transmit or receive data at the expected transmission timing, it transmits or receives data at the candidate transmission timing.

Uplink configuration allows CG;

Downlink semi-persistent scheduling SPS.

The expected transmission opportunity is the transmission opportunity corresponding to the arrival of the SPS period or the CG period, and the terminal does not need to send additional uplink indications when sending data at the expected transmission opportunity, wherein there is only one expected transmission opportunity in one scheduling-free transmission. The scheduling parameters used for the expected transmission opportunity are the parameters used when the scheduling-free is activated.

The position of the candidate transmission opportunity is different from the position of the expected transmission opportunity, and the candidate transmission opportunity may be later than the expected transmission opportunity or earlier than the expected transmission opportunity. There may be multiple candidate transmission opportunities. If the required data packet has not arrived when the terminal or network side device reaches the expected transmission opportunity (that is, there is no data to be transmitted at present), the corresponding data packet may be sent using a candidate transmission opportunity (for example, a candidate transmission opportunity later than the expected transmission opportunity). The terminal or network side device may send an additional transmission indication when sending and receiving data at the candidate transmission opportunity.

The scheduling parameters of the candidate transmission timing other than time-related parameters may be consistent with or inconsistent with the scheduling parameters of the expected transmission timing, and are used to match changes in the current terminal or network-side buffer area. If they are inconsistent, the network-side device needs to configure the scheduling parameters to the terminal before activating adaptive scheduling-free.

When the terminal and the network side device perform data transmission at the candidate transmission timing according to the configuration information, the selected candidate transmission timing is the transmission timing actually used to transmit data. If the terminal and the network side device can perform data transmission at the expected transmission timing, the expected transmission timing is the transmission timing actually used to transmit data.

(1) Number of candidate transmission opportunities: For each unscheduled transmission, one or more candidate transmission opportunities can be configured. opportunity.

(2) The time offset between two adjacent candidate transmission opportunities. For a scheduling-free transmission, if at least two candidate transmission opportunities are configured, the time difference between two adjacent candidate transmission opportunities may also be configured, such as Offset 2 in FIG. 2 .

(3) The time offset between the expected transmission timing and the nearest candidate transmission timing; if the candidate transmission timing is configured in an unscheduled transmission, the time difference between the expected transmission timing in the unscheduled transmission and the nearest candidate transmission timing may also be configured, such as Offset 1 in FIG2 .

(4) Transmission indication: The transmission indication may be used to indicate the use of the target candidate transmission timing as the actual transmission timing. The transmission indication has a certain relationship with the target candidate transmission timing, for example: a physical relationship, such as: having a fixed time difference from the actual transmission timing or within a certain time range, corresponding to a special demodulation reference signal, corresponding to a special scheduling request, corresponding to special downlink control information, etc.; or a logical relationship, such as: being associated with the same logical channel group or logical channel, etc.

Configuring a transmission indication can avoid wasting air interface resources by unused transmission opportunities. If the loss of air interface resources is not important, the transmission indication may not be sent. The configuration time of the transmission indication may be earlier than the corresponding actual transmission opportunity, but should not be earlier than the last expected transmission opportunity or candidate transmission opportunity of the previous round of scheduling-free transmission.

(5) Prohibit registration of retransmission timer information.

During the time corresponding to the registration retransmission prohibition timer, the retransmission of the hybrid automatic repeat request (HARQ) process ID corresponding to the current scheduling-free is prohibited, and no acknowledgement (ACK) is fed back. The starting time of the registration retransmission prohibition timer can be the earliest expected transmission time or candidate transmission time of the current scheduling-free, and the end time is the actual transmission time, as shown in Figure 2. Optionally, for ease of processing, the end time of the registration retransmission prohibition timer can also be set to the latest expected transmission time or the last candidate transmission time of the current scheduling-free. The introduction of this timer can avoid the resources of the unused expected transmission time or candidate transmission time being occupied by other users, or meaningless retransmission caused by vacant resources. When the actual transmission time is the expected transmission time, this timer can be not used. The period (Periodicity) shown in Figure 2 is the period of SPS or CG.

As an optional embodiment, the determining that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode includes at least one of the following:

(1) if the data to be transmitted in the buffer area corresponding to the expected transmission timing is less than a first threshold, determining that data transmission cannot be performed at the expected transmission timing;

In this embodiment, the first threshold may be the size of the transmission block corresponding to the expected transmission opportunity, or may be set according to data transmission requirements, for example, the first threshold is smaller than the size of the transmission block corresponding to the expected transmission opportunity.

In this embodiment, for scheduling-free transmission, the configured period and applicable transmission block size are fixed, and if the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold, the resources corresponding to the expected transmission opportunity may be configured for other services, and the terminal determines that data cannot be transmitted at the expected transmission opportunity. The data transmission in this embodiment may be uplink data transmission of the terminal.

(2) If the amount of data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than a second threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity.

In this embodiment, the second threshold may be the size of the transmission block corresponding to the expected transmission opportunity, or may be set according to data transmission requirements, for example, the second threshold is greater than the size of the transmission block corresponding to the expected transmission opportunity.

In this embodiment, for scheduling-free transmission, the configured period and applicable transmission block size are fixed, and if the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than the second threshold, the resources corresponding to the expected transmission opportunity may be configured for other services, and the terminal determines that data cannot be transmitted at the expected transmission opportunity. The data transmission in this embodiment may be uplink data transmission of the terminal.

(3) If there is no data to be transmitted in the buffer area corresponding to the expected transmission timing, it is determined that data transmission cannot be performed at the expected transmission timing.

The data transmission in this embodiment may be uplink data transmission of the terminal, that is, if there is no uplink data that the terminal needs to send in the buffer area, it can be determined that the terminal cannot perform data transmission at the expected transmission timing.

(4) If data is not received at the expected transmission timing, it is determined that data transmission cannot be performed at the expected transmission timing.

The data transmission of this embodiment may be that the terminal receives downlink data (ie, the network side device sends downlink data). If the terminal does not receive the data at the expected transmission timing, it means that the data cannot be received at the expected transmission timing.

(5) If a transmission instruction sent by the network side device is received before the expected transmission timing, it is determined that data transmission cannot be performed at the expected transmission timing.

In this embodiment, if the terminal receives a transmission indication sent by the network side device before the expected transmission opportunity arrives, and the transmission indication can be used to indicate the use of the candidate transmission opportunity as the actual transmission opportunity, it means that the terminal cannot receive or send data at the expected transmission opportunity.

As an optional embodiment, after receiving the configuration information of the candidate transmission opportunity sent by the network side device, the method further includes any of the following:

In this embodiment, after the network side device sends the configuration information of the candidate transmission opportunity to the terminal, it can send activation signaling of the configuration information to the terminal to instruct the activation of the configuration information. In this case, the activation of the configuration information is independently configured. Optionally, the network side device can also activate the configuration information at the same time when sending the configuration information.

Optionally, after receiving the configuration information of the candidate transmission opportunity sent by the network side device, the terminal can determine the activation opportunity according to the protocol agreement or by itself, and send the configuration information activation signaling to the network side device. The configuration information activation signaling can be a radio resource control (Radio Resource Control, RRC) layer signaling or a medium access control (Medium Access Control, MAC) layer signaling.

As an optional embodiment, the performing data transmission at the candidate transmission opportunity according to the configuration information includes at least one of the following:

(1) If there is no data to be transmitted in the buffer area corresponding to the expected transmission timing, select a first candidate transmission timing after the expected transmission timing for data transmission according to the configuration information.

The first candidate transmission opportunity may be the first candidate transmission opportunity after the expected transmission opportunity, or may be another candidate transmission opportunity. If the terminal determines that there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, the terminal cannot perform data transmission at the expected transmission opportunity, and may select one of the configured candidate transmission opportunities for data transmission, for example, select a candidate transmission opportunity later than the expected transmission opportunity for data transmission.

(2) If the amount of data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold or greater than the second threshold, a second candidate transmission opportunity is selected for data transmission according to the configuration information, and the transmission block TBS of the second candidate transmission opportunity is greater than the amount of data to be transmitted.

In this embodiment, if the terminal finds that the size of the data to be transmitted in the cache area corresponding to the expected transmission timing is lower or higher than a specific threshold, it can select a transmission timing in the candidate transmission timing whose TBS is greater than the data packet in the cache area for data transmission, for example, select the smallest one among multiple candidate transmission timings whose TBS is greater than the data packet in the cache area as the transmission timing.

(3) If the data to be transmitted in the buffer area corresponding to the expected transmission timing is less than the first threshold or greater than the second threshold, and there is no candidate transmission timing with a TBS greater than the data to be transmitted, then select the TBS according to the configuration information. The third largest candidate transmission opportunity is used for data transmission.

In this embodiment, if the terminal finds that the size of the data to be transmitted in the cache area corresponding to the expected transmission timing is lower or higher than a specific threshold, and there is no transmission timing in the configured candidate transmission timing whose TBS is greater than the data packet in the cache area, then among all the candidate transmission timings configured for this scheduling-free configuration, the candidate transmission timing with the largest TBS is selected as the actual transmission timing.

Optionally, the method further includes: sending first indication information to a network side device, wherein the first indication information is used to indicate that the transmission timing of the scheduling-free transmission is modified to a candidate transmission timing.

In this embodiment, after the terminal determines to use the candidate transmission opportunity for data transmission, it needs to send first indication information to the network side device to notify the network side device to receive data at the location of the corresponding candidate transmission opportunity.

Optionally, if the data transmission is downlink transmission, that is, the network side device sends data to the terminal, the network side device can send indication information to the terminal when determining to use the candidate transmission opportunity to send data, instructing the terminal to receive data at the corresponding candidate transmission opportunity.

As an optional embodiment, the method further includes: receiving second indication information sent by a network side device, where the second indication information is used to indicate that the expected transmission opportunity is released.

In this embodiment, if it is determined to use the candidate transmission opportunity for data transmission and reception, in order to avoid waste of resources caused by unused expected transmission opportunities, the network side device can recover the wireless resources of unused expected transmission opportunities and/or unused other candidate transmission opportunities and allocate them to other users or users who should have used these resources. Since the network side device knows the situation of its own allocation of wireless resources, it will not perform additional transmission or reception, so no additional operations are required except releasing resources. For the terminal, it can be explained by the following situations:

1) During downlink transmission, before the terminal receives the transmission instruction sent by the network side device, the terminal does not know that the infinite resources that may belong to it have been released or allocated to other users, so the terminal will still receive data at the expected transmission time, but the data cannot be decoded correctly at this time. Since the network side device is configured with a registration-prohibited retransmission timer, under the restriction of the registration-prohibited retransmission timer, the terminal does not feedback ACK and the network side device will not register for retransmission, so the terminal may have a possible redundant reception, which will not have a significant impact on other operations.

2) During uplink transmission, if there is no corresponding data in the corresponding buffer area when the terminal is close to the expected transmission timing, the terminal can send a transmission indication before the expected transmission timing (the specific advance time can be optionally configured by the network side device), and modify the current non-scheduled transmission timing to one of the candidate transmission timings for this non-scheduled transmission. In this case, the network side device can release the unused transmission resources to other users because it has received the transmission indication. The terminal can also send a transmission indication after the expected transmission timing. In this case, the wireless resources corresponding to the expected transmission timing will not be released, and the network side device The device will also receive the data on the corresponding resources of the terminal at the expected transmission time, but there is no data at the expected transmission time. Due to the restriction of the prohibited registration retransmission timer, the network side device will not register for retransmission or require the terminal to retransmit. After that, the network side device can wait for the transmission indication sent by the terminal to receive the data sent by the terminal. If the data sent by the terminal is not received until the prohibited registration retransmission timer expires, the HARQ Process ID used for this transmission will be registered for retransmission.

Optionally, the method further includes: receiving deactivation information of the unscheduled transmission sent by the network side device; according to the deactivation information, ending the unscheduled transmission and removing the configuration information. The network side device sends a message to the terminal to deactivate the unscheduled transmission, ends this round of unscheduled transmission, and waits for the next transmission. If the unscheduled transmission is deactivated, the relevant configuration is also removed.

As an optional embodiment, the implementation process of the adaptive scheduling-free method may be shown in FIG3 , including:

Step 1: The network-side device activates scheduling-free transmission;

Step 2: The network side device determines whether it is necessary to configure the candidate transmission opportunity. If necessary, it determines the relevant configuration information, such as the number of candidate transmission opportunities, transmission indication, offset, etc.

Step 3: The network side device sends configuration information of candidate transmission opportunities to the terminal.

Step 4: The network side device activates the configuration information.

Step 5: Adaptive scheduling-free transmission is performed between the network-side device and the terminal.

Step 6: The network-side device deactivates scheduling-free transmission.

Step 7: The terminal removes the configuration information.

In an embodiment of the present application, multiple candidate transmission opportunities with different time starting points and different scheduling parameters are used in one scheduling-free process to meet the transmission requirements of jitter in size and time of the transmission block. By configuring multiple sets of candidate transmission opportunities with different scheduling parameters, the problem of mismatch between the scheduling-free period and the actual data packet arrival period caused by network jitter is solved while only necessary overhead is increased.

As shown in FIG4 , an embodiment of the present application provides an adaptive scheduling-free method, which is applied to a network side device, and the method includes:

Step 401: When the scheduling-free transmission mode is activated, it is determined that a candidate transmission opportunity needs to be configured according to the service type;

Step 402: Send configuration information of candidate transmission opportunities to the terminal;

Step 403: If it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, data transmission is performed at the candidate transmission opportunity according to the configuration information;

In this embodiment, when the uplink and downlink scheduling-free is activated or after being activated, the network side device can determine whether it is necessary to configure the candidate transmission opportunity according to the current service type. After determining that the candidate transmission opportunity needs to be configured, the network side device sends the configuration information of the candidate transmission opportunity to the terminal. When the terminal performs data transmission, if the data transmission can be performed at the expected transmission opportunity of the current scheduling-free transmission configuration, it is not necessary to use the candidate transmission opportunity, that is, the terminal does not need to perform any additional operations. If the terminal determines that the data transmission cannot be performed at the expected transmission opportunity of the current scheduling-free transmission configuration, the data transmission can be performed at the corresponding candidate transmission opportunity according to the configuration information. In an embodiment of the present application, the data transmission may include uplink data transmission and/or downlink data reception. Similarly, for the network side device, when performing data transmission, if the data transmission can be performed at the expected transmission opportunity of the current scheduling-free transmission configuration, it is not necessary to use the candidate transmission opportunity. If it is determined that the data transmission cannot be performed at the expected transmission opportunity of the current scheduling-free transmission configuration, the data transmission can be performed at the corresponding candidate transmission opportunity according to the configuration information, for example, data is sent to the terminal at the candidate transmission opportunity, or data sent by the terminal is received at the candidate transmission opportunity.

Uplink configuration allows CG;

Downlink semi-persistent scheduling SPS.

Among them, the expected transmission opportunity is the transmission opportunity corresponding to the arrival of the SPS period or the CG period, and the network side device does not need to send additional downlink indications when sending data at the expected transmission opportunity. The scheduling parameters used for the expected transmission opportunity are the parameters used when the scheduling-free activation is activated. The position of the candidate transmission opportunity is different from the position of the expected transmission opportunity. The candidate transmission opportunity can be later than the expected transmission opportunity or earlier than the expected transmission opportunity. The terminal or network side device can send additional transmission indications when sending and receiving data at the candidate transmission opportunity.

In an embodiment of the present application, when the scheduling-free transmission mode is activated, the network side device configures the configuration information of the candidate transmission opportunity for the terminal. In addition, if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, data transmission is performed at the candidate transmission opportunity according to the configuration information. By configuring the candidate transmission opportunity, it is possible to adapt to the transmission scheme when the transmission block size does not meet the scheduling-free requirements and/or the transmission time of the data packet jitters, and solve the problem of mismatch between the scheduling-free period and the actual data arrival period caused by the network jitter problem.

the number of candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

Transmission instructions;

Disable registration of retransmission timer information.

(1) If the amount of data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than a third threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity.

In this embodiment, the third threshold may be the size of the transmission block corresponding to the expected transmission opportunity, or may be set according to data transmission requirements, for example, the third threshold is smaller than the size of the transmission block corresponding to the expected transmission opportunity.

In this embodiment, for scheduling-free transmission, the configured period and applicable transmission block size are fixed, and if the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold, the resources corresponding to the expected transmission opportunity can be configured for other services, and the network side device determines that data cannot be transmitted at the expected transmission opportunity. The data transmission of this embodiment can be downlink data transmission of the network side device.

(2) If the amount of data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than a fourth threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity.

In this embodiment, the fourth threshold may be the size of the transmission block corresponding to the expected transmission opportunity, or may be set according to data transmission requirements, for example, the fourth threshold is greater than the size of the transmission block corresponding to the expected transmission opportunity.

In this embodiment, for scheduling-free transmission, the configured period and applicable transmission block size are fixed, and if the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than the fourth threshold, the resources corresponding to the expected transmission opportunity can be configured for other services, and the network side device determines that data cannot be transmitted at the expected transmission opportunity. The data transmission of this embodiment can be downlink data transmission of the network side device.

The data transmission of this embodiment may be downlink data transmission by the network side device, that is, if there is no downlink data that the network side device needs to send in the buffer area, it can be determined that the network side device cannot perform data transmission at the expected transmission timing.

The data transmission of this embodiment may be that the network side device receives uplink data (that is, the terminal sends uplink data). If the network side device does not receive the data at the expected transmission timing, it means that the data cannot be received at the expected transmission timing.

(5) If a transmission instruction sent by the terminal is received before the expected transmission timing, it is determined that data transmission cannot be performed at the expected transmission timing.

In this embodiment, if the network side device receives a transmission indication sent by the terminal before the expected transmission opportunity arrives, and the transmission indication can be used to indicate the use of the candidate transmission opportunity as the actual transmission opportunity, it means that the network side device cannot receive or send data at the expected transmission opportunity.

Optionally, after sending the configuration information of the candidate transmission opportunity to the terminal, the method further includes any one of the following:

Sending a configuration information activation signaling to the terminal;

Receive a configuration information activation signaling sent by the terminal.

After receiving the configuration information of the candidate transmission opportunity sent by the network side device, the terminal can also determine the activation opportunity according to the protocol agreement or by itself, and send the configuration information activation signaling to the network side device. The configuration information activation signaling can be RRC layer signaling or MAC layer signaling.

(1) If there is no data to be transmitted in the buffer area corresponding to the expected transmission timing, then according to the configuration information, a fourth candidate transmission timing after the expected transmission timing is selected for data transmission.

The first candidate transmission opportunity may be the first candidate transmission opportunity after the expected transmission opportunity, or may be another candidate transmission opportunity. If the network side device determines that there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, it means that data transmission cannot be performed at the expected transmission opportunity, and one of the configured candidate transmission opportunities may be selected for data transmission, for example, a candidate transmission opportunity later than the expected transmission opportunity may be selected for data transmission.

(2) If the amount of data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold or greater than the fourth threshold, a fifth candidate transmission opportunity is selected for data transmission according to the configuration information, and the TBS of the fifth candidate transmission opportunity is greater than the amount of data to be transmitted.

The fifth candidate transmission timing is a candidate transmission timing with a minimum TBS among all candidate transmission timings having TBS greater than that of the data to be transmitted.

In this embodiment, if the network side device finds that the size of the data to be transmitted in the cache area corresponding to the expected transmission timing is lower or higher than a specific threshold, it can select a transmission timing in the candidate transmission timing whose TBS is greater than the data packet in the cache area for data transmission. For example, the smallest one among multiple candidate transmission timings whose TBS is greater than the data packet in the cache area is selected as the transmission timing.

(3) If the data to be transmitted in the buffer area corresponding to the expected transmission timing is less than the third threshold or greater than the fourth threshold, and there is no candidate transmission timing with a TBS greater than the data to be transmitted, select the sixth candidate transmission timing with the largest TBS for data transmission according to the configuration information.

In this embodiment, if the network side device finds that the size of the data to be transmitted in the cache area corresponding to the expected transmission timing is lower or higher than a specific threshold, and there is no transmission timing in the candidate transmission timing whose TBS is greater than the data packet in the cache area, then among all the candidate transmission timings configured without scheduling, the candidate transmission timing with the largest TBS is selected as the actual transmission timing.

Optionally, the method further includes: receiving first indication information sent by the terminal, wherein the first indication information is used to indicate that the transmission timing of the scheduling-free transmission is changed to a candidate transmission timing.

Optionally, if the network-side device determines to use the candidate transmission opportunity for data transmission, it may also send indication information to the terminal to notify the terminal to receive data at the location of the corresponding candidate transmission opportunity.

As an optional embodiment, the method further includes: sending second indication information to the terminal, where the second indication information is used to indicate that the expected transmission opportunity is released.

In this embodiment, if it is determined to use candidate transmission opportunities for data transmission and reception, in order to avoid waste of resources caused by unused expected transmission opportunities, for the wireless resources of unused expected transmission opportunities and/or unused other candidate transmission opportunities, the network side device can reclaim these resources and allocate them to other users or users who should have used these resources.

Optionally, the method further includes: sending deactivation information of scheduling-free transmission to the terminal. The network side device sends a message of deactivating scheduling-free transmission to the terminal, ends this round of scheduling-free transmission, and waits for the next transmission. If scheduling-free transmission is deactivated, the relevant configuration is also removed.

In the embodiment of the present application, when the scheduling-free transmission mode is activated, the network side device configures the configuration information of the candidate transmission opportunity for the terminal. In addition, if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, data transmission is performed at the candidate transmission opportunity according to the configuration information. By configuring the candidate transmission opportunity, it is possible to adapt to the transmission scheme when the transmission block size does not meet the scheduling-free requirements and/or the transmission time of the data packet is jittery, and solve the network jitter. The problem is that the scheduling-free period does not match the period when actual data arrives.

As shown in FIG5 , the embodiment of the present application further provides an adaptive scheduling-free device 500, which is applied to a terminal and includes:

A first receiving module 510 is used to receive configuration information of candidate transmission opportunities sent by a network side device when the scheduling-free transmission mode is activated;

A first transmission module 520 is configured to, if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, perform data transmission at a candidate transmission opportunity according to the configuration information;

the number of candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

Transmission instructions;

Disable registration of retransmission timer information.

Uplink CG;

Downlink SPS.

Optionally, the first transmission module is specifically configured to perform at least one of the following:

Optionally, the device further comprises any one of the following:

A second receiving module, used to receive the configuration information activation signaling sent by the network side device;

The second sending module is used to send a configuration information activation signaling to the network side device.

Optionally, the first transmission module is used to perform at least one of the following:

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold or greater than the second threshold, select a second candidate transmission opportunity for data transmission according to the configuration information, and the transmission block TBS of the second candidate transmission opportunity is greater than the data to be transmitted;

Optionally, the device further comprises:

The third sending module is used to send first indication information to the network side device, where the first indication information is used to indicate that the transmission timing of the scheduling-free transmission is changed to a candidate transmission timing.

Optionally, the device further comprises:

The third receiving module is used to receive second indication information sent by the network side device, where the second indication information is used to indicate that the expected transmission opportunity is released.

Optionally, the device further comprises:

A fourth receiving module, used to receive deactivation information of scheduling-free transmission sent by a network side device;

A processing module is used to end the scheduling-free transmission and remove the configuration information according to the deactivation information.

It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

As shown in FIG6 , the embodiment of the present application further provides an adaptive scheduling-free device 600, which is applied to a network side device, including:

A first determination module 610 is used to determine the need to configure a candidate transmission opportunity according to a service type when the scheduling-free transmission mode is activated;

A first sending module 620, configured to send configuration information of candidate transmission opportunities to a terminal;

The second transmission module 630 is used to determine that the transmission cannot be performed at the expected transmission time corresponding to the scheduling-free transmission mode. data transmission, then performing data transmission at the candidate transmission opportunity according to the configuration information;

the number of candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

Transmission instructions;

Disable registration of retransmission timer information.

Uplink CG;

Downlink SPS.

Optionally, the second transmission module is specifically configured to perform at least one of the following:

Optionally, the device further comprises any one of the following:

A fourth sending module, used to send a configuration information activation signaling to the terminal;

The fifth receiving module is used to receive the configuration information activation signaling sent by the terminal.

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold or greater than the fourth threshold, a fifth candidate transmission opportunity is selected for data transmission according to the configuration information, and the TBS of the fifth candidate transmission opportunity is is greater than the data to be transmitted;

Optionally, the device further comprises:

The sixth receiving module is used to receive the first indication information sent by the terminal, where the first indication information is used to indicate that the transmission timing of the scheduling-free transmission is changed to the candidate transmission timing.

Optionally, the device further comprises:

A fifth sending module is used to send second indication information to the terminal, where the second indication information is used to indicate that the expected transmission opportunity is released.

Optionally, the device further comprises:

The sixth sending module is used to send deactivation information of scheduling-free transmission to the terminal.

It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment applied to the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

As shown in FIG. 7 , a terminal 700 according to an embodiment of the present application includes a processor 710 and a transceiver 720 , wherein:

The transceiver 720 is used to: when the scheduling-free transmission mode is activated, receive the configuration information of the candidate transmission opportunity sent by the network side device;

The processor 710 is configured to: if it is determined that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode, perform data transmission at the candidate transmission timing according to the configuration information;

the number of candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

Transmission instructions;

Disable registration of retransmission timer information.

Uplink configuration allows CG;

Downlink semi-persistent scheduling SPS.

Optionally, the processor 710 determines that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode, including at least one of the following:

Optionally, the transceiver 720 is further configured to perform any of the following:

Optionally, the processor 710 performs data transmission at a candidate transmission opportunity according to the configuration information, including at least one of the following:

Optionally, the transceiver 720 is further used for:

The processor 710 is further configured to terminate the scheduling-free transmission and remove the configuration information according to the deactivation information.

It should be noted that the above-mentioned terminal provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

As shown in FIG8 , a network side device 800 according to an embodiment of the present application includes a processor 810 and a transceiver 820 , wherein:

The processor 810 is used to: determine the need to configure a candidate transmission opportunity according to the service type when the scheduling-free transmission mode is activated;

The transceiver 820 is used to: send configuration information of candidate transmission opportunities to the terminal;

The processor 810 is further configured to: if it is determined that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode, perform data transmission at the candidate transmission timing according to the configuration information;

the number of candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

Transmission instructions;

Disable registration of retransmission timer information.

Uplink CG;

Downlink SPS.

Optionally, the processor 810 determines that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode, including at least one of the following:

Optionally, the transceiver 820 is further configured to perform any of the following:

Sending a configuration information activation signaling to the terminal;

Receive a configuration information activation signaling sent by the terminal.

Optionally, the processor 810 performs data transmission at a candidate transmission opportunity according to the configuration information, including at least one of the following:

Optionally, the transceiver 820 is further used for:

The first indication information sent by the receiving terminal is used to indicate the transmission timing of the non-scheduled transmission. Modify to candidate transmission opportunity.

Optionally, the transceiver 820 is further used for:

Send deactivation information of scheduling-free transmission to the terminal.

It should be noted that the above-mentioned network side device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment applied to the network side device, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

A terminal of another embodiment of the present application is shown in Figure 9, including a transceiver 910, a processor 900, a memory 920, and a program or instruction stored in the memory 920 and executable on the processor 900; when the processor 900 executes the program or instruction, the above-mentioned adaptive scheduling-free method applied to the terminal is implemented.

The transceiver 910 is used to receive and send data under the control of the processor 900 .

Among them, in Figure 9, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 900 and various circuits of memory represented by memory 920 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits together, which are all well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 910 can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 930 can also be an interface that can be connected to external or internal devices, and the connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, etc.

The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 when performing operations.

A network side device according to another embodiment of the present application, as shown in FIG10 , includes a transceiver 1010, a processor 1000, a memory 1020, and a program or instruction stored on the memory 1020 and executable on the processor 1000; when the processor 1000 executes the program or instruction, the adaptive scheduling-free method applied to the network side device is implemented.

The transceiver 1010 is used to receive and send data under the control of the processor 1000 .

In FIG. 10 , the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1000 and memory represented by memory 1020. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. Transceiver 1010 It may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 when performing operations.

A readable storage medium of an embodiment of the present application stores a program or instruction thereon. When the program or instruction is executed by a processor, the steps in the adaptive scheduling-free method as described above are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

It should be further explained that the electronic devices described in this specification include but are not limited to smart phones, tablet computers, etc., and many of the functional components described are called modules in order to more particularly emphasize the independence of their implementation methods.

In the embodiment of the present application, the module can be implemented with software so that it can be executed by various types of processors. For example, an executable code module of an identification can include one or more physical or logical blocks of computer instructions, for example, it can be constructed as an object, process or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different bits, and when these instructions are logically combined together, it constitutes a module and realizes the specified purpose of the module.

In fact, executable code module can be a single instruction or many instructions, and can even be distributed on a plurality of different code segments, distributed among different programs, and distributed across a plurality of memory devices. Similarly, operating data can be identified in the module, and can be implemented and organized in the data structure of any appropriate type according to any appropriate form. The operating data can be collected as a single data set, or can be distributed in different locations (including on different storage devices), and can only be present on a system or network as an electronic signal at least in part.

When a module can be implemented by software, considering the level of existing hardware technology, a person skilled in the art can build a corresponding hardware circuit to implement the corresponding function of the module that can be implemented by software without considering the cost. The hardware circuit includes a conventional very large scale integration (VLSI) circuit or gate array and existing semiconductors such as logic chips, transistors, or other discrete components. The module can also be implemented by a programmable hardware device, such as a field programmable gate array, a programmable array logic, a programmable logic device, etc.

The above exemplary embodiments are described with reference to the accompanying drawings, and many different forms and embodiments are possible without departing from the spirit and teachings of the present application. Therefore, the present application should not be construed as being limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that the present application will be complete and perfect, and will convey the scope of the present application to the public. to those familiar with the art. In the drawings, component sizes and relative sizes may be exaggerated for clarity. The terms used herein are for the purpose of describing specific exemplary embodiments only and are not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to include the multiple forms as well. It will be further understood that the terms "comprising" and/or "including" when used in this specification indicate the presence of the features, integers, steps, operations, components and/or components, but do not exclude the presence or increase of one or more other features, integers, steps, operations, components, components and/or groups thereof. Unless otherwise indicated, when stated, a value range includes the upper and lower limits of the range and any sub-ranges therebetween.

The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

An adaptive scheduling-free method, applied to a terminal, comprising:

When the scheduling-free transmission mode is activated, receiving configuration information of candidate transmission opportunities sent by a network-side device;

If it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, performing data transmission at the candidate transmission opportunity according to the configuration information;

The candidate transmission timing is at a different location from the expected transmission timing.
The method according to claim 1, wherein the configuration information includes at least one of the following:

the number of the candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

A time offset between the expected transmission opportunity and the nearest candidate transmission opportunity;

Transmission instructions;

Disable registration of retransmission timer information.
The method according to claim 1 or 2, wherein the scheduling-free transmission mode includes at least one of the following:

Uplink configuration allows CG;

Downlink semi-persistent scheduling SPS.
The method according to any one of claims 1 to 3, wherein the determining that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode comprises at least one of the following:

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than the second threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, determining that data transmission cannot be performed at the expected transmission opportunity;

If no data is received at the expected transmission timing, determining that data transmission cannot be performed at the expected transmission timing;

If a transmission indication sent by the network side device is received before the expected transmission timing, it is determined that data transmission cannot be performed at the expected transmission timing.
The method according to any one of claims 1 to 4, further comprising any one of the following:

Receiving a configuration information activation signaling sent by the network side device;

Send a configuration information activation signaling to the network side device.
The method according to any one of claims 1 to 5, wherein the performing of data transmission at the candidate transmission opportunity according to the configuration information comprises at least one of the following:

If there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, selecting a first candidate transmission opportunity after the expected transmission opportunity for data transmission according to the configuration information;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold or greater than the second threshold, select a second candidate transmission opportunity for data transmission according to the configuration information, and the transmission block TBS of the second candidate transmission opportunity is greater than the data to be transmitted;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the first threshold or greater than the second threshold, and there is no candidate transmission opportunity with a TBS greater than the data to be transmitted, the third candidate transmission opportunity with the largest TBS is selected for data transmission according to the configuration information.
The method according to claim 6, wherein the second candidate transmission timing is a candidate transmission timing with a minimum TBS among all candidate transmission timings having a TBS greater than that of the data to be transmitted.
The method according to any one of claims 1 to 7, further comprising:

Sending first indication information to the network side device, where the first indication information is used to indicate that the transmission timing of the scheduling-free transmission is modified to a candidate transmission timing.
The method according to any one of claims 1 to 8, further comprising:

Receive second indication information sent by the network side device, where the second indication information is used to indicate that the expected transmission opportunity is released.
The method according to any one of claims 1 to 9, further comprising:

Receiving deactivation information of scheduling-free transmission sent by the network side device;

According to the deactivation information, the scheduling-free transmission is terminated and the configuration information is removed.
An adaptive scheduling-free method, applied to a network side device, comprises:

When the scheduling-free transmission mode is activated, it is determined that candidate transmission opportunities need to be configured according to the service type;

Sending configuration information of the candidate transmission opportunity to the terminal;

If it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, performing data transmission at the candidate transmission opportunity according to the configuration information;

The candidate transmission timing is located at a different position from the expected transmission timing corresponding to the scheduling-free transmission mode.
The method according to claim 11, wherein the configuration information includes at least one of the following:

the number of the candidate transmission opportunities;

The time offset between two adjacent candidate transmission opportunities;

A time offset between the expected transmission opportunity and the nearest candidate transmission opportunity;

Transmission instructions;

Disable registration of retransmission timer information.
The method according to claim 11 or 12, wherein the scheduling-free transmission mode includes at least one of the following:

Uplink CG;

Downlink SPS.
The method according to any one of claims 11 to 13, wherein the determining that data transmission cannot be performed at the expected transmission timing corresponding to the scheduling-free transmission mode comprises at least one of the following:

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is greater than the fourth threshold, it is determined that data transmission cannot be performed at the expected transmission opportunity;

If there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, determining that data transmission cannot be performed at the expected transmission opportunity;

If no data is received at the expected transmission timing, determining that data transmission cannot be performed at the expected transmission timing;

If a transmission indication sent by the terminal is received before the expected transmission opportunity, it is determined that data transmission cannot be performed at the expected transmission opportunity.
The method according to any one of claims 11 to 14, further comprising any one of the following:

Sending a configuration information activation signaling to the terminal;

Receive a configuration information activation signaling sent by the terminal.
The method according to any one of claims 11 to 15, wherein the performing data transmission at the candidate transmission opportunity according to the configuration information comprises at least one of the following:

If there is no data to be transmitted in the buffer area corresponding to the expected transmission opportunity, selecting a fourth candidate transmission opportunity after the expected transmission opportunity for data transmission according to the configuration information;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold or greater than the fourth threshold, select a fifth candidate transmission opportunity for data transmission according to the configuration information, and the TBS of the fifth candidate transmission opportunity is greater than the data to be transmitted;

If the data to be transmitted in the buffer area corresponding to the expected transmission opportunity is less than the third threshold or greater than the fourth threshold, and there is no candidate transmission opportunity with a TBS greater than the data to be transmitted, the sixth candidate transmission opportunity with the largest TBS is selected for data transmission according to the configuration information.
The method according to claim 16, wherein the fifth candidate transmission timing is a candidate transmission timing with a minimum TBS among all candidate transmission timings having a TBS greater than that of the data to be transmitted.
The method according to any one of claims 11 to 17, further comprising:

Receive first indication information sent by the terminal, where the first indication information is used to indicate that a transmission timing of a scheduling-free transmission is modified to a candidate transmission timing.
The method according to any one of claims 11 to 18, further comprising:

Sending second indication information to the terminal, where the second indication information is used to indicate that the expected transmission opportunity is released.
The method according to any one of claims 11 to 19, further comprising:

Sending deactivation information of scheduling-free transmission to the terminal.
An adaptive scheduling-free device, applied to a terminal, comprising:

A first receiving module, configured to receive configuration information of candidate transmission opportunities sent by a network side device when the scheduling-free transmission mode is activated;

A first transmission module, configured to, if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, perform data transmission at the candidate transmission opportunity according to the configuration information;

The candidate transmission timing is at a different location from the expected transmission timing.
An adaptive scheduling-free device, applied to a network side device, comprises:

A first determination module is used to determine the need to configure a candidate transmission opportunity according to a service type when the scheduling-free transmission mode is activated;

A first sending module, configured to send configuration information of the candidate transmission opportunity to a terminal;

A second transmission module, configured to, if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, perform data transmission at the candidate transmission opportunity according to the configuration information;

The candidate transmission timing is located at a different position from the expected transmission timing corresponding to the scheduling-free transmission mode.
A terminal comprises a processor and a transceiver;

The transceiver is used to: when the scheduling-free transmission mode is activated, receive configuration information of candidate transmission opportunities sent by a network side device;

The processor is used to: if it is determined that data transmission cannot be performed at the expected transmission time corresponding to the scheduling-free transmission mode If the transmission is to be transmitted, data transmission is performed at the candidate transmission opportunity according to the configuration information;

The candidate transmission timing is at a different location from the expected transmission timing.
A network side device, comprising a processor and a transceiver;

The processor is used to: when the scheduling-free transmission mode is activated, determine the need to configure the candidate transmission opportunity according to the service type;

The transceiver is used to: send configuration information of candidate transmission opportunities to the terminal;

The processor is further configured to: if it is determined that data transmission cannot be performed at the expected transmission opportunity corresponding to the scheduling-free transmission mode, perform data transmission at a candidate transmission opportunity according to the configuration information;

The candidate transmission timing is located at a different position from the expected transmission timing corresponding to the scheduling-free transmission mode.
A readable storage medium having a program or instruction stored thereon, wherein when the program or instruction is executed by a processor, the steps of the adaptive scheduling-free method as described in any one of claims 1 to 10 are implemented, or the steps of the adaptive scheduling-free method as described in any one of claims 11 to 20 are implemented.
An electronic device, comprising:

Processor; and

a memory for storing programs or instructions capable of being executed on the processor;

Wherein, when the processor is configured to run the program or instruction, it implements the steps of the adaptive scheduling-free method as described in any one of claims 1-10, or implements the steps of the adaptive scheduling-free method as described in any one of claims 11-20.
A computer program product comprising instructions, wherein when the instructions are executed by a processor, the processor executes the steps of the adaptive scheduling-free method as described in any one of claims 1-10, or executes the steps of the adaptive scheduling-free method as described in any one of claims 11-20.