WO2017193730A1

WO2017193730A1 - Method of scheduling automatic retransmission, terminal, network equipment, and data storage medium

Info

Publication number: WO2017193730A1
Application number: PCT/CN2017/079274
Authority: WO
Inventors: 邱禹
Original assignee: 电信科学技术研究院
Priority date: 2016-05-13
Filing date: 2017-04-01
Publication date: 2017-11-16
Also published as: TW201740700A; TWI731061B; CN107370575A

Abstract

Provided are a method of scheduling automatic retransmission, a terminal, a network equipment, and a data storage medium. The method comprises: when a terminal transmits, according to an uplink scheduling grant transmitted by network equipment, no uplink data, acquiring, by the terminal, an uplink retransmission grant scheduling command; and ignoring, according to the uplink retransmission grant scheduling command, an operation associated with the uplink retransmission grant scheduling command, or performing, according to the uplink retransmission grant scheduling command, uplink data retransmission.

Description

Automatic retransmission scheduling method, terminal, network side device, and storage medium

Cross-reference to related applications

Priority is claimed on Chinese Patent Application No. 201610318500.9, filed on Jan. 13, 2016, the entire content of

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to an automatic retransmission scheduling method, a terminal, a network side device, and a storage medium.

Background technique

From B3G (Beyond Third Generation) to 4G (Fourth Generation), LTE (Long Term Evolution)/LTE-A (LTE-Advanced) has been widely used as the mainstream mobile communication technology in the world today.

For LTE/LTE-A systems, the two most critical metrics for the service experience are rate and latency. The delay not only affects the response rate of the service, but also indirectly affects the user's service rate. In the 3GPP (3rd Generation Partnership Project) release 13 and release 14 phases, the Latency Reduction (LR) study was implemented for the LTE-A system to reduce the service delay of the user plane.

In order to obtain a shorter uplink delay, the 3GPP RAN2 conference discusses and determines to introduce a smaller semi-persistent scheduling resource interval (1 TTI (Transmission Time Interval)) to send uplink data; before this, the minimum SPS (semi-static scheduling) The interval is 10 TTIs. In semi-persistent scheduling, resources of the system (including uplink and downlink) need only be allocated or specified once through the PDCCH (Physical Downlink Control Channel), and then the same time-frequency resources can be periodically reused. The semi-persistent scheduling is configured by the upper layer RRC (Radio Link Control) signaling, and the semi-static scheduling period is specified at the same time as the configuration. The semi-persistent scheduling is activated by allocating corresponding resources to the PDCCH. The UE re-uses the data in the subsequent scheduling period by saving the corresponding resource allocation. Only the data of the adaptive retransmission needs to reallocate the resources through the PDCCH.

In a legacy LTE/LTE-A system, a UE (User Equipment) receives a PDCCH from the PDCCH. For uplink scheduling authorization, uplink data transmission should be performed at the corresponding time. If there is no uplink data in the UE buffer, padding data carrying an empty buffer status report (empty BSR) needs to be sent. However, in the case where the interval of semi-persistent scheduling is short (for example, 1 TTI), this behavior may cause the UE to consume power seriously and cause unnecessary uplink interference.

In order to solve this problem, the 3GPP RAN2 conference agrees and passes: The UE can skip the Skipping UL transmission when there is no uplink data. In LTE/LTE-A (Long Term Evolution), when the UE (User Equipment) is enabled to skip the uplink transmission, if the eNodeB (Evolved Node B) sends or configures the uplink scheduling grant to the UE, the eNodeB may not receive correctly. For any uplink data, at present, the eNodeB cannot distinguish why the uplink data is not received, so the UE may directly feed back the NACK (if it is an adaptive retransmission, it also sends the uplink grant for retransmission to the UE).

According to the behavior of the UE in the current standard, the NACK sent by the eNB may directly trigger the retransmission scheduling of the uplink data of the UE. However, there is currently no solution for the UE to respond to the retransmission scheduling indication.

Summary of the invention

The technical problem to be solved by the present disclosure is to provide an automatic retransmission scheduling method, a terminal, and a network side device, which can enable a terminal to respond to an uplink retransmission authorization scheduling instruction of a base station.

To solve the above technical problem, an embodiment of the present disclosure provides a scheduling method for automatic retransmission, including:

The uplink retransmission authorization scheduling instruction of the network side device is obtained when the terminal does not perform uplink data transmission according to the uplink scheduling authorization sent by the network side device;

Performing an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.

The step of performing the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction includes:

According to the uplink retransmission authorization scheduling instruction, when it is determined that the hybrid automatic repeat request (HARQ) process buffer of the terminal is empty, the operation of ignoring the uplink retransmission authorization scheduling instruction is performed.

Step package for performing uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction include:

According to the uplink retransmission authorization scheduling instruction, when it is determined that the HARQ process buffer of the terminal is empty, the uplink data retransmission operation is performed.

The steps of performing an uplink data retransmission operation include:

If the terminal determines that there is no new data for uplink transmission, the first type of packet data unit (PDU) data packet is configured to be sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission authorization scheduling instruction; The buffer status bit field of the type PDU packet, populated with a status bit with a buffer empty; or

If the terminal determines that there is currently new data for uplink transmission, the second type of PDU data packet is configured to be sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission authorization scheduling instruction; wherein, the second type of PDU data packet The cache status bit field fills the cache with a status bit that is not empty.

The media access control (MAC) control unit field of the PDU data packet further includes: a probability or a number of times that the terminal does not perform uplink data transmission after receiving the uplink scheduling authorization within a preset time period.

The uplink retransmission authorization scheduling instruction includes: a negative answer NACK and an uplink retransmission authorization information that the network side device does not perform uplink data transmission for the terminal.

An embodiment of the present disclosure further provides a scheduling method for automatic retransmission, including:

The terminal is configured to send an uplink retransmission authorization scheduling instruction to the terminal when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device, and the uplink data sent by the terminal is not received;

When the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, when the number of times the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value, the terminal stops sending the uplink weight to the terminal. The authorization scheduling instruction is transmitted; or when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction, determining whether to stop sending the uplink retransmission authorization scheduling instruction to the terminal according to the uplink data.

The step of determining whether to stop sending an uplink retransmission authorization scheduling instruction to the terminal according to the uplink data when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction includes:

Receiving, according to the first type of packet data unit (PDU) data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, buffering according to the buffer status bit field of the first type of PDU data packet The empty status bit stops transmitting the uplink retransmission authorization scheduling instruction to the terminal; or

When receiving the second type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, stopping sending the uplink weight to the terminal according to the status bit buffered in the buffer status bit field of the second type of PDU data packet The authorization dispatch instruction is transmitted, and the normal response information is sent to the terminal.

The method further includes: if the uplink data carries: a probability or a number of times that the uplink data transmission is not performed after the terminal receives the uplink scheduling authorization within a preset time period, the method further includes:

According to the probability or the number of times in the uplink data, the configuration terminal is configured to disable or enable the uplink data transmission when the uplink scheduling grant is received.

The step of configuring the terminal to close or enable the function of not performing uplink data transmission when receiving the uplink scheduling grant according to the probability or the number of times in the uplink data includes:

If the probability or the number of times is less than a threshold, the configuration terminal does not perform the uplink data transmission function when receiving the uplink scheduling authorization; otherwise, the configuration terminal keeps on and does not perform the uplink data transmission when receiving the uplink scheduling authorization.

An embodiment of the present disclosure further provides a terminal, including:

The receiving module is configured to obtain an uplink retransmission authorization scheduling instruction of the network side device when the terminal does not perform uplink data transmission according to the uplink scheduling authorization sent by the network side device;

The response module is configured to perform an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.

The response module includes:

a first response unit, configured to: according to the uplink retransmission authorization scheduling instruction, determine, when the hybrid automatic repeat request (HARQ) process buffer of the terminal is empty, perform an operation of ignoring the uplink retransmission authorization scheduling instruction; or

The second response unit is configured to perform an operation of retransmitting the uplink data when the HARQ process buffer of the terminal is empty according to the uplink retransmission authorization scheduling instruction.

The second response unit is configured to: when determining that the HARQ process buffer of the terminal is empty according to the uplink retransmission authorization scheduling instruction, if the terminal determines that there is no new data for uplink transmission, constructing the first type of packet data unit ( The PDU) data packet is sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission grant scheduling instruction. The buffer status bit field of the first type of PDU data packet is filled with the status bit with the cache empty.

The second response unit is configured to: when determining, according to the uplink retransmission authorization scheduling instruction, that the HARQ process buffer of the terminal is empty, if the terminal determines that there is new data for uplink transmission, constructing a second type of PDU data packet, The uplink retransmission resource indicated by the uplink retransmission grant scheduling instruction is sent to the network side device. The buffer status bit field of the second type of PDU data packet is filled with a status bit that is not empty.

An embodiment of the present disclosure further provides a network side device, including:

a sending module, configured to send, by the terminal, an uplink retransmission authorization scheduling instruction to the terminal when the uplink scheduling grant sent by the network side device is configured, and the uplink data transmission is not performed, and the uplink data sent by the terminal is not received;

At least one of a first processing module or a second processing module, wherein

a first processing module, configured to: when the terminal performs an operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, when the number of times the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value Stop sending an uplink retransmission authorization scheduling instruction to the terminal;

The second processing module is configured to determine, according to the uplink data, whether to stop sending an uplink retransmission authorization scheduling instruction to the terminal, when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction.

The second processing module includes:

a first processing unit, configured to: when receiving a first type of packet data unit (PDU) data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, according to a buffer status bit field of the first type of PDU data packet, An empty status bit, stopping sending an uplink retransmission authorization scheduling instruction to the terminal; or

a second processing unit, configured to: when receiving the second type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, according to the buffer status bit field of the second type of PDU data packet, the status bit is not cached Stop sending an uplink retransmission authorization scheduling instruction to the terminal, and send normal response information to the terminal.

If the uplink data carries: the probability or the number of times that the terminal does not perform uplink data transmission after receiving the uplink scheduling authorization within a preset time period, the uplink data includes:

The configuration module is configured to: according to the probability or the number of times in the uplink data, configure the terminal to disable or enable the function of not performing uplink data transmission when receiving the uplink scheduling authorization.

The configuration module is specifically configured to: if the probability or the number of times is less than a threshold, the configuration terminal is not configured to perform uplink data transmission when receiving the uplink scheduling authorization; otherwise, the configuration terminal remains open when receiving the uplink scheduling authorization. The function of uplink data transmission.

An embodiment of the present disclosure further provides a terminal, including:

processor;

a memory storing computer readable instructions executable by the processor;

a transceiver coupled to the processor and configured to receive and transmit data under control of the processor,

When the computer readable instructions are executed, the processor:

Obtain an uplink retransmission authorization scheduling instruction of the network side device when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device;

processor;

a memory storing computer readable instructions executable by the processor;

When the computer readable instructions are executed, the processor:

Embodiments of the present disclosure also provide a non-volatile computer storage medium storing computer readable instructions executable by a processor, when the computer readable instructions are executed by the processor, the processor:

The beneficial effects of the above technical solutions of the present disclosure are as follows:

In the foregoing solution, the uplink retransmission authorization scheduling instruction of the network side device is obtained when the terminal does not perform the uplink data transmission according to the uplink scheduling authorization sent by the network side device; and the uplink retransmission authorization scheduling instruction is performed, and the uplink is ignored. Retransmit the operation of the authorization scheduling instruction or perform the operation of retransmitting the uplink data. Therefore, in the configuration in which the UE skips the uplink transmission, when the network side device feeds back the uplink retransmission authorization command to the UE when the uplink data is not received, the behavior of the UE after receiving the uplink retransmission authorization instruction is given.

DRAWINGS

1 is a flowchart of a method for scheduling automatic retransmission on a terminal side according to the present disclosure;

2 is a flowchart of a specific implementation manner of the scheduling method shown in FIG. 1;

3 is a schematic diagram of a format of a MAC CE field in a PDU data packet;

4 is a flow chart of another specific implementation manner of the scheduling method shown in FIG. 1;

5 is a flowchart of a method for scheduling automatic retransmission of a network side device according to the present disclosure;

FIG. 6 is a schematic structural diagram of a terminal of the present disclosure.

detailed description

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in conjunction with the accompanying drawings and specific embodiments.

The embodiment of the present disclosure is directed to the related art, in a configuration in which the UE skips the uplink transmission, when the eNodeB feeds back the uplink retransmission grant scheduling instruction to the UE when the uplink data is not received, the UE does not have a corresponding response, and the present disclosure The embodiment shows the behavior of the UE after receiving the uplink retransmission authorization scheduling instruction (NACK and uplink retransmission authorization information).

As shown in FIG. 1 , some embodiments of the present disclosure provide a scheduling method for automatic retransmission, including:

Step 11: The terminal obtains an uplink retransmission authorization scheduling instruction of the network side device according to the uplink scheduling authorization sent by the network side device, and does not perform the uplink data transmission, and the uplink retransmission authorization scheduling instruction includes: the network side device does not perform the terminal Negative answer NACK for uplink data transmission and uplink retransmission authorization information;

Step 12: Perform an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.

In this embodiment, when the terminal does not perform uplink data transmission according to the uplink scheduling authorization sent by the network side device, the uplink retransmission authorization scheduling instruction of the network side device is obtained; and the uplink retransmission authorization scheduling instruction is used to ignore the uplink. Retransmit the operation of the authorization scheduling instruction or perform the operation of retransmitting the uplink data. Therefore, in the configuration in which the terminal skips the uplink transmission, when the network side device feeds back the uplink retransmission authorization command to the terminal when the uplink data is not received, the behavior of the terminal after receiving the uplink retransmission authorization command is given.

The implementation of step 12 in this embodiment is as follows:

According to the uplink retransmission authorization scheduling instruction, the step of performing the operation of ignoring the uplink retransmission authorization scheduling instruction includes:

Step 121: Determine, according to the uplink retransmission authorization scheduling instruction, a hybrid automatic retransmission of the terminal When the request (HARQ) process buffer is empty, the operation of ignoring the uplink retransmission authorization scheduling instruction is performed.

Specifically, as shown in FIG. 2, including:

Step 1: The network side device eNodeB sends an uplink scheduling grant to the UE (for semi-persistent services, there may be no explicit authorization).

Step 2: There is no data to be transmitted in the UE buffer, and the UE skips the uplink transmission.

Step 3: The eNodeB does not (or fails to) receive any uplink transmission, feeds back the NACK to the UE, and sends an uplink retransmission authorization.

Note: Adaptive retransmission requires the sending of an uplink retransmission authorization. For non-adaptive retransmission, there is no need to send an explicit retransmission authorization.

Step 4: After receiving the NACK, the UE queries the data in the corresponding HARQ process cache. Because the UE skips the uplink transmission last time, the uplink retransmission authorization is ignored at this time, and no uplink data is sent.

Step 5: Repeat steps 3 and 4 until the NACK and retransmission authorization are reached to reach the maximum number of retransmissions.

According to the RRC (Radio Link Control) configuration, when there is no data in the buffer, the UE skips the uplink transmission, that is, the UE does not perform uplink data transmission after receiving the uplink scheduling grant of the network side device. The eNodeB does not receive any uplink data at the corresponding uplink time, and then feeds back the NACK to the UE. After receiving the NACK, the UE queries the data in the corresponding HARQ process cache. Because the corresponding HARQ buffer is empty, the uplink retransmission authorization is ignored at this time, and no uplink data is sent.

The implementation of step 12 in this embodiment is as follows:

According to the uplink retransmission authorization scheduling instruction, the step of performing an uplink data retransmission operation includes:

Step 122: Perform an uplink data retransmission operation when determining that the HARQ process buffer of the terminal is empty according to the uplink retransmission authorization scheduling instruction.

The steps of performing an uplink data retransmission operation include:

Step 1221: If the terminal determines that there is no new data for uplink transmission, the PDU (packet data unit) data packet of the first type is configured to be sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission authorization scheduling instruction. Wherein, the buffer status bit field of the first type of PDU packet is filled with a status bit with a buffer empty.

Step 1222: If the terminal determines that there is new data for uplink transmission, the second type of PDU data packet is configured to be sent to the network on the uplink retransmission resource indicated by the uplink retransmission authorization scheduling instruction. The network side device; wherein the buffer status bit field of the second type of PDU data packet is filled with a status bit that is not empty.

In the above embodiment, the MAC (Media Access Control) Control Unit field (MAC CE) of the PDU data packet further includes: after receiving the uplink scheduling authorization, the terminal does not perform uplink data transmission within a preset time period. Probability or number of times.

The format of the MAC control unit field is as shown in FIG. 3, and R is a reserved bit. The Empty Buffer Prob is the probability or number of times that the terminal does not perform uplink data transmission after receiving the uplink scheduling authorization within the preset time period.

Specifically, as shown in FIG. 4, it includes:

Step 1: The eNodeB sends an uplink scheduling grant to the UE (for semi-persistent services, there may be no explicit authorization).

Step 3: The eNodeB does not (or fails to) receive any uplink transmission, feeds back the NACK to the UE, and simultaneously sends an uplink retransmission scheduling grant.

Step 4: After receiving the NACK, the UE queries the data in the corresponding HARQ process cache. Because the UE skips the uplink transmission last time, the corresponding HARQ buffer is empty, so the MAC PDU is constructed, and the resource is retransmitted for uplink transmission.

According to the RRC configuration, after receiving the uplink scheduling authorization of the network side device, the UE skips the uplink transmission when there is no data in the buffer. The eNodeB does not receive any uplink data at the corresponding uplink time, and then feeds back the NACK to the UE. After receiving the NACK, the UE constructs an uplink MAC PDU and performs uplink transmission on the corresponding retransmission resource.

The MAC PDU constructed here may be a padding PDU, or a data PDU may be constructed based on new data at this time.

The eNodeB can determine whether the UE sends a padding PDU or a new data PDU according to the BSR (Cache Status Report) MAC CE (Control Unit) content included in the MAC PDU.

At the same time, the UE can count the number of times or the probability that the situation occurs in the past period of time according to the historical information, and the information is included in the MAC CE and reported to the eNodeB to help the eNodeB enter. The line is judged, so that the skip uplink transmission function is turned off in time.

For example, when the number of times or the probability or the number of times of the statistics is less than a certain threshold, it is indicated that the UE skips the uplink transmission. In this case, the eNodeB can send the RRC signaling to close the skip uplink transmission function. Subsequently, the eNodeB can re-enable the skip uplink transmission function according to the situation that the UE sends the uplink padding PDU. The format of the MAC CE field in the PDU herein may be referred to, but not limited to, the format shown in FIG. 3 above.

In the foregoing embodiment of the present disclosure, when the configuration of the uplink transmission is skipped, and the eNodeB sends or configures the uplink scheduling grant to the UE, when the uplink data is not received, it is not possible to distinguish whether the UE sends the uplink data, where the UE does not send the uplink data. The reasons for the upstream data may include:

1) There is data in the UE buffer, but the uplink data sent by the UE is lost (because of poor channel conditions, etc.);

2) There is no data in the UE buffer, skipping the uplink transmission.

If the uplink does not receive data due to the above 1), the UE performs retransmission according to the uplink grant;

However, if the uplink no reception data is caused because of the above 2), the UE behavior is clarified by the method described in the embodiment of the present disclosure.

When the UE does not have uplink data transmission, it may ignore the corresponding uplink grant and not perform uplink data transmission.

In the above embodiment, the case of step 1221 and step 1222 can also help the eNodeB to correctly identify the uplink data reception error and the UE does not send data, and the auxiliary eNodeB closes the skip uplink transmission function.

As shown in FIG. 5, some embodiments of the present disclosure provide a scheduling method for automatic retransmission, including:

Step 51: When the terminal is configured according to the uplink scheduling grant sent by the network side device, if the uplink data transmission is not performed, and the uplink data sent by the terminal is not received, the terminal sends an uplink retransmission authorization scheduling instruction to the terminal.

Step 52: When the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, when the number of times the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value, the terminal stops. Sending an uplink retransmission authorization scheduling instruction to the terminal; or

Step 53: Receive uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction. And determining, according to the uplink data, whether to stop sending an uplink retransmission authorization scheduling instruction to the terminal.

Wherein, step 53 includes:

Step 531: When receiving the first type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, stop according to the status bit buffered in the buffer status bit field of the first type of PDU data packet. The terminal sends an uplink retransmission authorization scheduling instruction.

Step 532: When receiving the second type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, stop according to the status bit in the buffer status bit field of the second type of PDU data packet that is not empty. Send an uplink retransmission authorization scheduling instruction to the terminal, and send normal response information (such as NCK) to the terminal.

Step 54: According to the probability or the number of times in the uplink data, configure the terminal to disable or enable the function of not performing uplink data transmission when receiving the uplink scheduling grant.

Wherein, step 54 includes:

If the probability or the number of times is less than a threshold, the configuration terminal does not perform the uplink data transmission function when receiving the uplink scheduling authorization; otherwise, the configuration terminal keeps on the function of not performing the uplink data transmission when receiving the uplink scheduling authorization.

In this embodiment of the present disclosure, the network side device, such as a base station (eNodeB), can determine whether the UE sends a padding PDU or a new data PDU according to the BSR (Cache Status Report) MAC CE (Control Unit) content included in the MAC PDU.

At the same time, the UE can count the number of times or the probability that the situation occurs in the past time period according to the historical information, and the information is included in the MAC CE and reported to the eNodeB to help the eNodeB perform the judgment, thereby turning off the skip uplink transmission function in time.

For example, when the number of times of statistics or the probability is less than a certain threshold, it is indicated that the UE skips the uplink transmission. In this case, the eNodeB can send the RRC signaling to close the skip uplink transmission function. Subsequently, the eNodeB can re-enable the skip uplink transmission function according to the situation that the UE sends the uplink padding PDU. The format of the MAC CE field in the PDU herein may be referred to, but not limited to, the format shown in FIG. 3 above.

Some embodiments of the present disclosure also provide a terminal, including:

The response module includes:

The first response unit is configured to perform an operation of ignoring the uplink retransmission authorization scheduling instruction when determining that the HARQ process buffer of the terminal is empty according to the uplink retransmission authorization scheduling instruction.

The response module includes:

The second response unit is configured to: when the terminal HARQ process buffer is empty according to the uplink retransmission authorization scheduling instruction, if the terminal determines that there is no new data for uplink transmission, constructing the first type of PDU The data packet is sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission grant scheduling instruction. The buffer status bit field of the first type of PDU data packet is filled with a status bit with a buffer empty.

The second response unit is configured to: when determining, according to the uplink retransmission authorization scheduling instruction, that the HARQ process buffer of the terminal is empty, if the terminal determines that there is new data for uplink transmission, constructing a second type of PDU. The data packet is sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission grant scheduling instruction. The buffer status bit field of the second type of PDU data packet is filled with a status bit that is not empty.

The MAC control unit field of the PDU data packet further includes: a probability or a number of times that the terminal does not perform uplink data transmission after receiving the uplink scheduling authorization in a preset time period.

It should be noted that the terminal is a device corresponding to the method described in the foregoing embodiment shown in FIG. 1. All the implementation manners in this embodiment are applicable to the embodiment of the terminal, and can also achieve the same method as the foregoing method. effect.

Some embodiments of the present disclosure also provide a network side device, including:

a sending module, configured to be configured, according to an uplink scheduling authorization sent by the network side device, in the terminal, When the uplink data transmission is not performed, and the uplink data sent by the terminal is not received, the uplink retransmission authorization scheduling instruction is sent to the terminal;

The first processing module is configured to: when the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, the number of times the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset When the value is received, the sending of the uplink retransmission authorization scheduling instruction to the terminal is stopped; or

The second processing module includes:

a first processing unit, configured to: when the first type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction is received, the buffer is empty according to a buffer status bit field of the first type of PDU data packet. Bit, stop sending an uplink retransmission authorization scheduling instruction to the terminal.

The second processing module includes:

a second processing unit, configured to: when receiving the second type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, according to the cache status bit field of the second type of PDU data packet, the buffer is not empty. The status bit stops transmitting the uplink retransmission authorization scheduling instruction to the terminal, and sends normal response information to the terminal.

If the uplink data carries: the probability or the number of times that the terminal does not perform uplink data transmission after receiving the uplink scheduling authorization in the preset time period, the method further includes:

The configuration module is configured to: according to the probability or the number of times in the uplink data, configure the terminal to disable or enable the function of not performing uplink data transmission when receiving the uplink scheduling grant.

The configuration module is specifically configured to: if the probability or the number of times is less than a threshold, the configuration terminal is configured to not perform the uplink data transmission function when receiving the uplink scheduling authorization; otherwise, the configuration terminal remains open to receive the uplink scheduling. The function of uplink data transmission is not performed when authorized.

It should be noted that the terminal is a device corresponding to the method described in the foregoing embodiment shown in FIG. 5, and all implementations in this embodiment are applicable to the embodiment of the terminal, and can also achieve the same method as the foregoing method. effect.

As shown in FIG. 6, some embodiments of the present disclosure further provide a terminal, including: a processor 600; and a memory 620 connected to the processor 600 through a bus interface 610, the memory 620 is configured to store programs and data used by the processor when performing operations, and when the processor 600 calls and executes programs and data stored in the memory 620, the processor is configured to implement the following functions in the terminal. Obtaining an uplink retransmission authorization scheduling instruction of the network side device when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device;

And performing an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.

Wherein, in FIG. 6, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.

Some embodiments of the present disclosure also provide a network side device, including: a processor; a memory connected to the processor through a bus interface, and a transceiver connected to the processor through a bus interface; the memory is used for Storing a program and data used by the processor in performing an operation; transmitting data information or pilots through the transceiver, and receiving a downlink control channel through the transceiver; when the processor calls and executes the memory When the program and data are stored, the processor is configured to implement the following functions:

When the terminal is configured according to the uplink scheduling grant sent by the network side device, if the uplink data transmission is not performed, and the uplink data sent by the terminal is not received, the terminal sends an uplink retransmission authorization scheduling instruction to the terminal;

When the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, when the number of times that the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value, the terminal stops sending to the terminal. Upstream retransmission authorization scheduling instruction; or determining, according to the uplink data, when receiving uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction Stop sending an uplink retransmission authorization scheduling instruction to the terminal.

The network side device may be a network side device such as a base station.

The bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.

The processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.

The basic principles of the present disclosure have been described above in connection with the specific embodiments, but it should be noted that one of ordinary skill in the art can understand that all or any of the steps or components of the methods and apparatus of the present disclosure may be in any computing device. (including a processor, a storage medium, etc.) or a network of computing devices implemented in hardware, firmware, software, or a combination thereof, which is used by those of ordinary skill in the art in view of the teachings of the disclosure. Programming skills can be achieved.

Thus, the objects of the present disclosure can also be achieved by running a program or a set of programs on any computing device. The computing device can be a well-known general purpose device. Accordingly, the objects of the present disclosure may also be realized by merely providing a program product including program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure. It will be apparent that the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present disclosure, it is apparent that various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can make several improvements and without departing from the principles of the present disclosure. Retouching, these improvements and retouchings should also be considered as protection of this disclosure.

Claims

A scheduling method for automatic retransmission, comprising:

The uplink retransmission authorization scheduling instruction of the network side device is obtained when the terminal does not perform uplink data transmission according to the uplink scheduling authorization sent by the network side device;

And performing an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.
The automatic retransmission scheduling method according to claim 1, wherein the step of ignoring the operation of the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction comprises:

And performing, according to the uplink retransmission authorization scheduling instruction, an operation of ignoring the uplink retransmission authorization scheduling instruction when determining that the hybrid automatic repeat request (HARQ) process buffer of the terminal is empty.
The automatic retransmission scheduling method according to claim 1, wherein the step of performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction comprises:

And performing, according to the uplink retransmission authorization scheduling instruction, an operation of performing uplink data retransmission when determining that the HARQ process buffer of the terminal is empty.
The automatic retransmission scheduling method according to claim 3, wherein the step of performing an uplink data retransmission operation comprises:

If the terminal determines that there is no new data for uplink transmission, the first type of packet data unit (PDU) data packet is configured to be sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission authorization scheduling instruction; a buffer status bit field of the first type of PDU packet, populated with a status bit with a buffer empty; or

If the terminal determines that there is currently new data for uplink transmission, the second type of PDU data packet is configured to be sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission authorization scheduling instruction; wherein, the second type of PDU The buffer status bit field of the packet, the fill buffer is a status bit that is not empty.
The automatic retransmission scheduling method according to claim 4, wherein the media access control (MAC) control unit field of the PDU data packet further includes: after a preset time period, after receiving the uplink scheduling authorization, the terminal does not The probability or number of times the upstream data is transmitted.
The automatic retransmission scheduling method according to claim 1, wherein the uplink retransmission authorization scheduling instruction comprises: a negative answer NACK for the network side device not performing uplink data transmission for the terminal And uplink retransmission authorization information.
A scheduling method for automatic retransmission, comprising:

The terminal is configured to send an uplink retransmission authorization scheduling instruction to the terminal when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device, and the uplink data sent by the terminal is not received;

When the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, when the number of times that the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value, the terminal stops sending to the terminal. The uplink retransmission authorization scheduling instruction is sent; or, when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction, determining, according to the uplink data, whether to stop sending an uplink retransmission authorization scheduling instruction to the terminal.
The automatic retransmission scheduling method according to claim 7, wherein when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction, determining, according to the uplink data, whether to stop sending an uplink retransmission authorization to the terminal The steps of scheduling instructions include:

When receiving a first type of packet data unit (PDU) data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, according to a status bit buffered in the buffer status bit field of the first type of PDU data packet, Stop sending an uplink retransmission authorization scheduling instruction to the terminal; or

When receiving the second type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, stopping sending to the terminal according to the status bit buffered in the buffer status bit field of the second type of PDU data packet The uplink retransmission authorization scheduling instruction sends a normal response message to the terminal.
The automatic retransmission scheduling method according to claim 7, wherein if the uplink data carries: a probability or number of uplink data transmissions that are not performed after the terminal receives the uplink scheduling authorization within a preset time period, The method also includes:

According to the probability or the number of times in the uplink data, the configuration terminal is configured to disable or enable the function of not performing uplink data transmission when receiving the uplink scheduling grant.
The automatic retransmission scheduling method according to claim 9, wherein the step of configuring the terminal to disable or enable the function of not performing uplink data transmission when receiving the uplink scheduling grant according to the probability or the number of times in the uplink data comprises: :

If the probability or the number of times is less than a threshold, the configuration terminal is closed to receive the uplink scheduling authorization. The uplink data transmission function is not performed; otherwise, the configuration terminal keeps on the function of not performing uplink data transmission when receiving the uplink scheduling authorization.
A terminal comprising:

The receiving module is configured to obtain an uplink retransmission authorization scheduling instruction of the network side device when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device;

The response module is configured to perform an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.
The terminal of claim 11, wherein the response module comprises:

The first response unit is configured to perform, according to the uplink retransmission authorization scheduling instruction, an operation of ignoring the uplink retransmission authorization scheduling instruction when determining that the hybrid automatic repeat request (HARQ) process buffer of the terminal is empty.
The terminal of claim 11, wherein the response module comprises:

The second response unit is configured to perform an operation of retransmitting the uplink data when the HARQ process buffer of the terminal is empty according to the uplink retransmission authorization scheduling instruction.
The terminal according to claim 13, wherein the second response unit is specifically configured to: when determining, according to the uplink retransmission authorization scheduling instruction, that the HARQ process buffer of the terminal is empty, if the terminal determines that there is no new data for uplink transmission The PDU data packet of the first type is configured to be sent to the network side device on the uplink retransmission resource indicated by the uplink retransmission grant scheduling instruction, where the buffer status bit field of the first type of PDU data packet is filled with The status bit of the cache is empty; or

The second response unit is configured to: when determining, according to the uplink retransmission authorization scheduling instruction, that the HARQ process buffer of the terminal is empty, if the terminal determines that there is new data for uplink transmission, constructing a second type of PDU data packet. And sending, to the network side device, the uplink retransmission resource indicated by the uplink retransmission grant scheduling instruction, where the buffer status bit field of the second type of PDU data packet is filled with a status bit that is not empty.
The terminal according to claim 14, wherein the media access control (MAC) control unit field of the PDU data packet further comprises: after receiving the uplink scheduling authorization, the terminal does not perform uplink data transmission within a preset time period. Probability or number of times.
The terminal according to claim 11, wherein the uplink retransmission authorization scheduling instruction comprises: a negative answer NACK and an uplink retransmission of the network side device for the terminal not performing uplink data transmission. Right information.
A network side device, including:

a sending module, configured to: when the terminal is configured to perform an uplink scheduling grant sent by the network side device, and not to perform uplink data transmission, and not receiving the uplink data sent by the terminal, send an uplink retransmission authorization scheduling instruction to the terminal;

At least one of the first processing module or the second processing module, where the first processing module is configured to: when the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, When the number of times that the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value, the sending of the uplink retransmission authorization scheduling instruction to the terminal is stopped;

The second processing module is configured to determine, according to the uplink data, whether to stop sending an uplink retransmission authorization scheduling instruction to the terminal, when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction.
The network side device according to claim 17, wherein the second processing module comprises:

a first processing unit, configured to: when receiving a first type of packet data unit (PDU) data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, according to a buffer status bit field of the first type of PDU data packet The status bit of the buffer is empty, and the sending of the uplink retransmission authorization scheduling instruction to the terminal is stopped; or

a second processing unit, configured to: when receiving the second type of PDU data packet sent by the terminal according to the uplink retransmission authorization scheduling instruction, according to the cache status bit field of the second type of PDU data packet, the buffer is not empty. The status bit stops transmitting the uplink retransmission authorization scheduling instruction to the terminal, and sends normal response information to the terminal.
The network side device according to claim 17, wherein if the uplink data carries: a probability or number of times that the uplink data transmission is not performed after the terminal receives the uplink scheduling authorization within a preset time period, the method further includes:

The configuration module is configured to: according to the probability or the number of times in the uplink data, configure the terminal to disable or enable the function of not performing uplink data transmission when receiving the uplink scheduling grant.
The network side device according to claim 19, wherein the configuration module is specifically configured to: if the probability or the number of times is less than a threshold, the configuration terminal is configured to not perform uplink data transmission when receiving the uplink scheduling authorization; otherwise , configure the terminal to remain open when receiving the uplink scheduling authorization. No function of uplink data transmission.
A terminal comprising:

processor;

a memory storing computer readable instructions executable by the processor;

a transceiver coupled to the processor and configured to receive and transmit data under control of the processor,

When the computer readable instructions are executed, the processor:

Obtain an uplink retransmission authorization scheduling instruction of the network side device when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device;

And performing an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.
A network side device, including:

processor;

a memory storing computer readable instructions executable by the processor;

a transceiver coupled to the processor and configured to receive and transmit data under control of the processor,

When the computer readable instructions are executed, the processor:

The terminal is configured to send an uplink retransmission authorization scheduling instruction to the terminal when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device, and the uplink data sent by the terminal is not received;

When the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, when the number of times that the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value, the terminal stops sending to the terminal. The uplink retransmission authorization scheduling instruction is sent; or, when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction, determining, according to the uplink data, whether to stop sending an uplink retransmission authorization scheduling instruction to the terminal.
A non-volatile computer storage medium storing computer readable instructions executable by a processor, when the computer readable instructions are executed by a processor, the processor:

Obtain an uplink retransmission authorization scheduling instruction of the network side device when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device;

And performing an operation of ignoring the uplink retransmission authorization scheduling instruction or performing an uplink data retransmission operation according to the uplink retransmission authorization scheduling instruction.
A non-volatile computer storage medium storing computer readable instructions executable by a processor, when the computer readable instructions are executed by a processor, the processor:

The terminal is configured to send an uplink retransmission authorization scheduling instruction to the terminal when the uplink data transmission is not performed according to the uplink scheduling authorization sent by the network side device, and the uplink data sent by the terminal is not received;

When the terminal performs the operation of ignoring the uplink retransmission authorization scheduling instruction according to the uplink retransmission authorization scheduling instruction, when the number of times that the uplink retransmission authorization scheduling instruction is sent to the terminal reaches a preset value, the terminal stops sending to the terminal. The uplink retransmission authorization scheduling instruction is sent; or, when receiving the uplink data sent by the terminal according to the uplink retransmission authorization scheduling instruction, determining, according to the uplink data, whether to stop sending an uplink retransmission authorization scheduling instruction to the terminal.