CN111132338B

CN111132338B - Data transmission method and device

Info

Publication number: CN111132338B
Application number: CN201911320996.3A
Authority: CN
Inventors: 赵思聪
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2023-04-07
Anticipated expiration: 2039-12-19
Also published as: WO2021120681A1; CN111132338A

Abstract

The embodiment of the application discloses a data transmission method, which comprises the following steps: the method comprises the steps that when first uplink data are decoded by network equipment, indication information is generated and sent to terminal equipment; the terminal equipment monitors indication information in a monitoring window; and if the indication information is monitored in the monitoring window and comprises transmission termination information, stopping transmitting the first uplink data after the processing time window is finished. By adopting the embodiment of the application, unnecessary terminal energy consumption and waste of system uplink resources can be avoided.

Description

Data transmission method and device

Technical Field

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

Background

Narrow Band Internet of Things (NB-IoT) focuses on low-power consumption and wide-coverage of the market of the IoT, and is a wireless communication technology which can be widely applied in the global scope. The method has the characteristics of wide coverage, multiple connections, low speed, low cost, low power consumption, excellent architecture and the like.

To enhance coverage, a duplicate transmission mechanism is introduced for uplink/downlink scheduling in NB-IOT systems. For downlink transmission, the maximum repetition times can reach 2048 times; for uplink transmission, the maximum number of repetitions may be up to 128. In some uplink scenarios, the base station can correctly decode the uplink data when receiving a small amount of repeated data, and if the terminal continues to transmit the remaining uplink data, the terminal energy consumption and the waste of system uplink resources are caused.

How to avoid unnecessary terminal energy consumption and waste of system uplink resources is a technical problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a data transmission method and a device thereof, which can avoid unnecessary terminal energy consumption and waste of system uplink resources.

In a first aspect, an embodiment of the present application provides a data transmission method, including: monitoring indication information in a monitoring window;

if the indication information is detected in the listening window and the indication information comprises transmission termination information, stopping transmitting the first uplink data after the processing time window is finished;

wherein a start time of the processing time window is after a start time of the listening window.

In a second aspect, an embodiment of the present application further provides a data transmission method, including:

generating indication information when the first uplink data is decoded;

and sending the indication information.

In a third aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes a processing module and a communication module,

the processing module is used for monitoring indication information in a monitoring window by utilizing the communication module;

the processing module is further configured to, if the indication information is detected in the listening window and the indication information includes transmission termination information, stop transmitting the first uplink data after the processing time window is ended;

In a fourth aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes a processor and a communication interface;

the processor is used for monitoring indication information in a monitoring window by utilizing the communication interface;

the processor is further configured to, if the indication information is detected in the listening window and the indication information includes transmission termination information, stop transmitting the first uplink data after the processing time window is ended;

In a fifth aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus is configured to implement the data transmission method in the first aspect.

In a sixth aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes a processor and a memory, and the memory and the processor are coupled, so that the data transmission apparatus executes the data transmission method according to the first aspect.

In a seventh aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes a processing module and a communication module,

the processing module is used for generating indication information under the condition of decoding the first uplink data; and sending the indication information by using the communication module.

In an eighth aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes a processor and a communication interface;

the processor is configured to generate indication information when the first uplink data is decoded; the indication information is transmitted using the communication interface.

In a ninth aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus is configured to implement the data transmission method in the second aspect.

In a tenth aspect, embodiments of the present application further provide a data transmission apparatus, where the data transmission apparatus includes a processor and a memory, and the memory and the processor are coupled, so that the data transmission apparatus executes the data transmission method according to the second aspect.

In an eleventh aspect, embodiments of the present application further provide a computer-readable storage medium, on which instructions are stored, and when the instructions are executed on a computer, the instructions cause the computer to execute the data transmission method according to the first aspect and the second aspect.

In a twelfth aspect, embodiments of the present application further provide a computer program product, where the computer program product includes instructions that, when executed on a computer, cause the computer to execute the data transmission method according to the first aspect and the second aspect.

In a thirteenth aspect, an embodiment of the present application further provides a data transmission system, where the data transmission system includes a first data transmission device and a second data transmission device, the first data transmission device is configured to implement the data transmission method in the first aspect, and the second data transmission device is configured to implement the data transmission method in the second aspect.

According to the embodiment of the application, the indication information is monitored in the monitoring window, the transmission of the first uplink data is stopped after the time window is processed, and the subsequent uplink/downlink scheduling and monitoring behaviors can be executed according to other indication information contained in the indication information, so that the utilization rate of the indication information is improved, the time sequence relation of the indication information monitoring and processing, the subsequent uplink/downlink scheduling and monitoring behaviors is reasonably arranged, and unnecessary terminal energy consumption and the waste of system uplink resources are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of the timing relationship of an uplink backoff interval, a narrowband uplink shared channel, and a narrowband random access channel;

FIG. 2 is a schematic diagram of a timing relationship of an early termination mechanism implementation method based on UCG design;

FIG. 3 is a schematic diagram illustrating a timing relationship of another implementation method of an early termination mechanism based on UCG design;

FIG. 4 is a schematic diagram illustrating a timing relationship of an early termination mechanism implementation method with monitoring of Gap;

fig. 5a is a schematic diagram of a timing relationship between an uplink compensation interval and a listening window according to an embodiment of the present disclosure;

fig. 5b is a schematic diagram illustrating another timing relationship between an uplink compensation interval and a listening window according to an embodiment of the present application;

fig. 5c is a schematic diagram of another timing relationship between an uplink compensation interval and a listening window according to an embodiment of the present application;

fig. 5d is a schematic diagram of another timing relationship between an uplink compensation interval and a listening window according to an embodiment of the present application;

fig. 5e is a schematic diagram of another timing relationship between an uplink compensation interval and a listening window according to an embodiment of the present application;

fig. 6a is a schematic diagram illustrating a timing relationship between a listening window and a processing time window according to an embodiment of the present disclosure;

fig. 6b is a schematic diagram of another timing relationship between a listening window and a processing time window according to an embodiment of the present application;

fig. 6c is a schematic diagram of another timing relationship between a listening window and a processing time window according to an embodiment of the present application;

fig. 6d is a schematic diagram of another timing relationship between a listening window and a processing time window according to an embodiment of the present application;

fig. 7 is a system architecture diagram of data transmission according to an embodiment of the present application;

fig. 8 is a schematic flowchart of a data transmission method according to an embodiment of the present application;

fig. 9 is a timing diagram illustrating execution of corresponding actions according to indication information according to an embodiment of the present application;

fig. 10 is another timing diagram for performing corresponding actions according to indication information according to an embodiment of the present application;

fig. 11 is another schematic flow chart of a data transmission method according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of another data transmission device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than described or illustrated herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In order to better understand the data transmission method and the apparatus thereof provided in the embodiments of the present application, technical terms related to the present application are explained as follows:

(1) Up Compensation Gap (UCG)

Due to the low-cost requirement of the NB-IOT terminal, when continuous long-time uplink transmission is carried out, the NB-IOT terminal provided with the crystal oscillator with lower cost can cause the heat loss of the terminal power amplifier to cause the temperature change of the transmitter, and the temperature change of the transmitter can further cause the frequency offset of the crystal oscillator, so that the uplink transmission performance of the terminal can be seriously influenced, and the data transmission efficiency is further reduced. Therefore, in order to correct the frequency offset, an uplink compensation interval is introduced in the NB-IOT, so that the NB-IOT terminal can suspend uplink transmission during long-time continuous transmission, and the NB-IOT terminal can switch to the downlink using the time interval, perform synchronization tracking and time-frequency offset compensation using the reference signal in the NB-IOT downlink. For example: referring to fig. 1, for a narrowband Uplink Shared Channel (NPUSCH), the standard specifies that after a terminal completes 256ms data transmission, 40ms UCG time is allocated for correcting a frequency offset, and the remaining data is sent after being delayed. For a narrowband Random Access Channel (NPRACH), a standard specifies that a terminal configures UCG time of 40ms to perform frequency offset correction after completing preamble (preamble) repetition for 64 times, and transmits the remaining preamble after repeating the preamble.

Aiming at the problems of terminal energy consumption and system uplink resource waste caused by a repeated transmission mechanism in an NB-IOT system, the prior NB-IOT provides an early termination mechanism based on UCG design, and the early termination mechanism based on UCG design is mainly realized by adopting two methods: the first method is to directly monitor Hybrid Automatic Repeat Request acknowledgement Character (HARQ-ACK) in UCG; the second method is to introduce a special HARQ-ACK transmission termination information monitoring Gap after UCG; and the HARQ-ACK transmission termination information is used for indicating the terminal equipment to stop transmitting the uplink data after the end of monitoring the Gap.

Referring to fig. 2, in the first method, HARQ-ACK transmission termination information may be repeatedly transmitted, and an NB-IOT terminal needs to introduce an additional Reference Signal (RS) for frequency synchronization before directly monitoring the HARQ-ACK transmission termination information in the UCG, which requires that the NB-IOT terminal has a strong capability to perform synchronization and monitor the HARQ-ACK transmission termination information in a short time, and the introduced additional Reference Signal has a large influence on standardization, thereby affecting the compatibility of the entire data transmission system. The NB-IOT terminal is a low-cost terminal and has a weak processing capability, so that the NB-IOT terminal has a large processing difficulty in implementing the first method.

Referring to fig. 3, in the second method, there is an offset (offset) between the listening Gap and the UCG. The offset can be 0, and the UCG and the monitoring Gap are arranged according to the time sequence and are continuous without intervals in time; the offset may also be greater than 0, and the UCG and the listening Gap are arranged in chronological order with a continuous interval in time. When the offset is greater than 0, the offset and the monitoring Gap are matched to reserve time for processing the information of the downlink reference signal, so that the situation that terminal equipment with poor capability cannot receive HARQ-ACK transmission termination information when processing the information of the reference signal for frequency synchronization is avoided, but the switching times of transmitting uplink data and monitoring downlink data by the terminal equipment are increased, and the terminal energy consumption and the waste of system uplink resources are caused.

Although an offset value is defined in the specification of NB-IOT, so that the terminal device may have time to process the received data, only considering the listening Gap of the HARQ-ACK transmission termination information, the terminal energy consumption and the waste of uplink resources of the system may also occur, please refer to fig. 4.

As shown in the upper half of fig. 4, the terminal device monitors HARQ-ACK transmission termination information at the Gap, and switches to uplink to continue transmitting uplink data when the Gap monitoring is finished. However, the HARQ-ACK transmission termination information received in the monitored Gap is decoded only in the m (e.g., m = 5) th subframe after the end position (n subframe) of the monitored Gap, and the decoding result is termination of transmission, and the terminal device terminates transmission of uplink data in the (n + 6) th subframe and thereafter, so that resource and power consumption are wasted when uplink data is transmitted between the (n + 1) th subframe and the (n + 5) th subframe.

As shown in the lower half of fig. 4, the terminal device monitors Gap to detect a downlink scheduling assignment (DL assignment) message, and goes to uplink to continue transmitting uplink data when the Gap monitoring is finished. However, the decoding of the downlink scheduling information received in the monitoring Gap is completed only in the m (e.g., m = 5) th subframe after the end position (n subframe) of the monitoring Gap, and the decoding result is downlink scheduling, and the terminal device terminates the uplink data transmission in the (n + 6) th subframe and thereafter, so that the uplink data transmission between the (n + 1) th subframe and the (n + 5) th subframe causes waste of resources and power consumption. In addition, the terminal device in the lower half of fig. 4 switches to downlink scheduling at the (n + 6) th subframe, which is further energy consumption and resource waste.

(2) Listening window and processing time window

The listening window in the embodiment of the present application is equivalent to the listening Gap described above. The terminal device may suspend transmission of uplink data in the monitoring window, and monitor indication information sent by the network device, that is, HARQ-ACK transmission termination information. The listening window may be configured semi-statically by higher layer signaling, or defined by a protocol.

The listening window is configured based on the uplink compensation interval, and the timing relationship between the listening window and the uplink compensation interval may be five cases (note: the time unit may be a frame, a subframe, or a time slot, etc., and in this embodiment, the time unit takes a subframe as an example):

the first condition is as follows: as shown in fig. 5a, the uplink compensation interval and the listening window are arranged in chronological order and are continuous without interval in time. For example, the last subframe of the uplink compensation interval and the first subframe of the listening window are arranged in time sequence, and the two subframes are continuous in time without interval, that is, the first subframe of the listening window is the next subframe of the last subframe of the uplink compensation interval.

In case two, as shown in fig. 5b, the uplink compensation interval and the listening window are arranged in time sequence and separated by i time units; where i is a positive integer and the size of i is configured by higher layer signaling or defined by a protocol. For example, the last subframe of the uplink compensation interval and the first subframe of the monitoring window are arranged in chronological order, and 2 subframes (i = 2) are provided between the last subframe of the uplink compensation interval and the first subframe of the monitoring window.

Case three: as shown in fig. 5c, the start time of the listening window is located after the start time of the uplink compensation interval, and the end time of the listening window is located before the end time of the uplink compensation interval, for example: the termination time of the listening window is located before the termination time of the uplink compensation interval and K subframes away from the termination time of the uplink compensation interval, where the K subframes can be understood as the time length of the processing time window. Wherein K is a positive integer.

Case four: as shown in fig. 5d, the start time of the listening window is located after the start time of the uplink backoff interval, and the end time of the listening window overlaps with the end time of the uplink backoff interval. For example: the first subframe of the monitoring window is positioned after the first subframe of the uplink compensation interval, and the last subframe of the monitoring window is overlapped with the last subframe of the uplink compensation interval.

Case five: as shown in fig. 5e, the start time of the listening window is located within the uplink compensation interval, and the end time of the listening window is located after the end time of the uplink compensation interval. For example: the first subframe of the monitoring window is positioned between the first subframe of the uplink compensation interval and the last subframe of the uplink compensation interval, and the last subframe of the monitoring window is positioned after the last subframe of the uplink compensation interval.

The listening window may be configured in proportion to an uplink compensation interval, for example: configuring one listening window every 2 or 4 UCGs, or periodically configuring the listening window, for example: and configuring a listening window for every N UCGs, wherein N is a positive integer. The third to fifth cases are all cases where the start time of the listening window is within the uplink compensation interval.

It should be noted that the timing relationship between the uplink compensation interval and the listening window is any one of fig. 5a to 5 e.

The processing time window in the present application is a time for processing the detected instruction information. The terminal device may suspend transmission of the first uplink data within a processing time window. The processing time window may be configured semi-statically by higher layer signaling, or defined by a protocol.

The time sequence relationship between the processing time window and the listening window can be the following four cases (note: the time unit can be a frame, a subframe, or a time slot, etc., and in the embodiment of the present application, the time unit takes a subframe as an example):

case a: as shown in fig. 6a, the listening window and the processing time window are arranged chronologically and continuously without intervals in time. For example: the last subframe of the monitoring window and the first subframe of the processing time window are arranged according to the time sequence, and the two subframes are continuous in time without interval, namely the first subframe of the processing time window is the next subframe of the last subframe of the monitoring window.

Case B: as shown in fig. 6b, the start time of the processing time window is after the start time of the listening window, and the end time of the processing time window is before the end time of the listening window. For example: the first sub-frame of the processing time window is located after the first sub-frame of the listening window and the last sub-frame of the processing time window is located before the last sub-frame of the listening window.

Case C: as shown in fig. 6c, the start time of the processing time window is after the start time of the listening window, and the end time of the processing time window overlaps with the end time of the listening window. For example: the first subframe of the processing time window is located after the first subframe of the listening window, and the last subframe of the processing time window overlaps with the last subframe of the listening window.

Case D: as shown in fig. 6d, the start time of the processing time window is within the listening window, and the end time of the processing time window is after the end time of the listening window. For example: the first subframe of the processing time window is located between the first subframe of the listening window and the last subframe of the listening window, and the last subframe of the processing time window is located after the last subframe of the listening window. The case B to the case D are both cases where the start time of the processing time is within the monitoring window.

It should be noted that the timing relationship between the processing time window and the listening window is any one of fig. 6a to 6d, and indication information is not monitored in the processing time window.

In order to better understand the data transmission method and the apparatus thereof provided in the embodiments of the present application, a system architecture related to the present application is introduced.

Fig. 7 is a system architecture diagram of data transmission according to an embodiment of the present application. The system may not be limited to the Long Term Evolution (LTE) mobile communication system and the fourth generation mobile communication (4) ^th -Generation, 4G) system, fifth Generation mobile communication (5) ^th -Generation, 5G) system and New Radio (NR) system, etc. The system may include: network device 701 and terminal device 702. Fig. 7 shows a network device 701 and a terminal device 702 for communication, which is used for example and not to limit the embodiment of the present application, and in practical applications, one network device 701 may communicate with a plurality of terminal devices 702.

The network device 701 may be a base station that may be configured to communicate with one or more terminal devices 702 and may also be configured to communicate with one or more base stations that may have some terminal capabilities (e.g., communication between macro base stations and micro base stations, such as access points). The base station may be an evolved Node B (eNodeB) in the LTE system, or may be a base station in a 4G system, a 5G system, or an NR system. In addition, the base station may also be an Access Point (AP), a Transmission node (TRP), a Central Unit (CU), or other network entity, and may include some or all of the functions of the above network entities.

The terminal devices 702 may be distributed throughout a wireless communication system, and may be stationary, such as a desktop computer, a stationary mainframe computer, or the like, or Mobile, such as a Mobile device, a Mobile Station (Mobile Station), a Mobile Unit (Mobile Unit), an M2M terminal, a wireless Unit, a remote Unit, a user agent, a Mobile client, or the like.

In order to better solve the problems of terminal energy consumption and waste of system uplink resources, the embodiment of the present application provides a data transmission method, where a network device 701 generates indication information and sends the indication information to a terminal device 702 under the condition that first uplink data is decoded, the terminal device 702 monitors the indication information in a monitoring window, if the indication information is detected in the monitoring window and includes transmission termination information, the terminal device 702 stops transmitting the first uplink data after processing the time window, and the terminal device 702 may further perform subsequent uplink/downlink scheduling and monitoring behaviors according to other indication information included in the indication information, thereby improving the utilization rate of the indication information, reasonably arranging the timing relationship between indication information monitoring and processing, subsequent uplink/downlink scheduling and monitoring behaviors, and avoiding unnecessary terminal energy consumption and waste of system uplink resources.

Referring to fig. 8, fig. 8 is a flow chart of a data transmission method provided in the embodiment of the present application, and the present specification provides the method operation steps as described in the embodiment or the flow chart, but more or less operation steps may be included based on conventional or non-inventive labor. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of sequences, and does not represent a unique order of performance. In the actual execution of the terminal or the storage medium product, the methods according to the embodiments or shown in the drawings can be executed sequentially or in parallel. As shown in fig. 8, the method includes, but is not limited to, the following steps:

s801, the network equipment generates indication information under the condition of decoding the first uplink data.

And the first uplink data is transmitted to the network equipment by the terminal equipment. A repeated transmission mechanism is introduced for uplink/downlink scheduling in the NB-IOT system, and the maximum repeated transmission times of the terminal equipment for transmitting the first uplink data to the network equipment can reach 128 times. The network device may notify the terminal device to stop the repeated transmission of the first uplink data when the first uplink data is decoded.

In one embodiment, the indication information includes transmission termination information; and the transmission termination information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished.

The step of stopping transmitting the first uplink data after the terminal device finishes the processing time window may be understood as that the terminal device immediately stops transmitting the first uplink data after the terminal device finishes the end time of the processing time window. For example: and the terminal equipment immediately stops transmitting the first uplink data after the last subframe of the processing time window is finished, namely the terminal equipment stops transmitting the first uplink data from the next subframe of the last subframe of the processing time window.

In one embodiment, the indication information may include first indication information; and the first indication information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished, and to start transmitting the second uplink data after the first scheduling interval window is finished.

After the processing time window is over, the terminal device stops transmitting the first uplink data as described above, which is not described herein again; the terminal device starts to transmit the second uplink data after the first scheduling interval window ends may be understood as the terminal device starts to transmit the second uplink data immediately after the termination time of the first scheduling interval window ends, for example: and the terminal equipment immediately starts to transmit the second uplink data after the last subframe of the first scheduling interval window is finished, namely, the terminal equipment starts to transmit the second uplink data from the next subframe of the last subframe of the first scheduling interval window. The first scheduling interval window may be understood as a time interval between an end time of the processing time window and a start time of starting to transmit the second uplink data, i.e. a time interval between a last time unit of the processing time window and a first time unit of starting to transmit the second uplink data, for example: the first scheduling interval window is a time interval between the last subframe of the processing time window and the first subframe of the starting transmission of the second uplink data.

The processing time window and the first scheduling interval window are arranged according to a time sequence and are continuous without intervals in time, and the size of the first scheduling interval window is indicated by Downlink Control Information (DCI), or is a first fixed value or is configured by a high-level signaling; the first fixed value is a non-negative number. The higher layer signaling may be Radio Resource Control (RRC) signaling or Media Access Control (MAC) signaling.

In one embodiment, the indication information may include second indication information; and the second indication information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished, and to start receiving the downlink data after the second scheduling interval window is finished.

After the processing time window is over, the terminal device stops transmitting the first uplink data as described above, which is not described herein again; the terminal device starts to receive the downlink data after the second scheduling interval window is ended may be understood as that the terminal device starts to receive the downlink data immediately after the termination time of the second scheduling interval window is ended, for example: and the terminal equipment immediately starts to receive the downlink data after the last subframe of the second scheduling interval window is finished, namely starts to receive the downlink data from the next subframe of the last subframe of the second scheduling interval window. The second scheduling interval window may be understood as a time interval between an end time of the processing time window and a start time of starting to receive the downlink data, i.e. a time interval between a last time unit of the processing time window and a first time unit of starting to receive the downlink data, for example: the second scheduling interval window is a time interval between the last subframe of the processing time window and the first subframe where downlink data starts to be received.

The processing time window and the second scheduling interval window are arranged according to the time sequence and are continuously without intervals in time, and the size of the second scheduling interval window is dynamically indicated by downlink control information or is a second fixed value or is semi-statically configured by high-level signaling; the second fixed value is a non-negative number.

In an embodiment, the indication information may further include third indication information; the third indication information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished, and to start monitoring downlink control information after the adjustment time window is finished;

after the processing time window is over, the terminal device stops transmitting the first uplink data as described above, which is not described herein again; after the adjustment of the time window, the terminal device starts to monitor the downlink control information, which may be understood as that the terminal device immediately starts to monitor the downlink control information after the end time of the adjustment of the time window is ended, for example: and the terminal equipment immediately starts to monitor the downlink control information after the last subframe of the time window is adjusted, namely starts to monitor the downlink control information when the next subframe of the last subframe of the time window is adjusted.

The processing time window and the adjusting time window are arranged according to the time sequence and are continuously without intervals in time, and the size of the adjusting time window is a third fixed value or is configured by a high-level signaling in a semi-static mode; the third fixed value is a non-negative number, and the third fixed value is 0 in the absence of high layer signaling configuration and in the absence of standardization of the third fixed value in the protocol.

In an embodiment, the indication information may further include fourth indication information; the fourth indication information is configured to instruct the terminal device to stop transmitting the first uplink data after the processing time window is ended, and to suspend DCI Monitoring before a Monitoring time (Monitoring interference) configured in a Search Space (Search Space) of a next Narrowband Physical Downlink Control Channel (NPDCCH) arrives.

After the processing time window is over, the terminal device stops transmitting the first uplink data as described above, which is not described herein again; the search space of NPDCCH may include 8 synchronization signal blocks.

S802, the network equipment sends indication information.

Specifically, the network device sends the indication information to the terminal device, and correspondingly, the terminal device receives the indication information from the network device. Wherein the indication information may be transmitted in the UCG.

In an embodiment, the network device sends the indication information by carrying the indication information through downlink control information.

The network device carries the indication information through the downlink control information, which can be understood as the indication information, and the network device generates the indication information carried through the downlink control information according to the indication information and the corresponding domain coding in the DCI. Different fields in the DCI are used to indicate different indication information. For example: except for the Flag for format N0/format N1 differentiation field in the DCI, setting the subframe repetition number field of the DCI to 0 and setting the other fields to 1 may be understood as that the DCI includes HARQ-ACK transmission termination information. For another example: a field corresponding to k1 in the field of the DCI has a specific value, for example, 2, it may be understood that the DCI includes the first indication information, where k1= the time length +1 of the first scheduling interval window, and k1>0. For another example: if the field corresponding to k2 in the field of the DCI has a specific value, for example, 4, it may be understood that the DCI includes the second indication information, where k2= the time length of the second scheduling interval window +1, and k2>0. Correspondingly, the terminal device decodes the indication information carried by the downlink control information to determine whether the indication information includes the transmission termination information, the first indication information, the second indication information, the third indication information, and the fourth indication information.

In an embodiment, the network device sends the indication information by carrying the indication information in sequence.

The network device bearing the indication information through the sequence means that if the indication information comprises transmission termination information, the network device generates the sequence, and the network device sets the corresponding bit position in the sequence according to other indication information except the transmission termination information, which is included in the indication information. For example: and taking 1 bit in the sequence as an indicating bit of the third indicating information and the fourth indicating information, wherein when the bit indicates 1, the processing indicating information also comprises the third indicating information, and when the bit indicates 0, the processing indicating information also comprises the fourth indicating information. The bit is specifically which bit in the sequence is, and is not limited in the embodiment of the present application. Correspondingly, the terminal equipment decodes each bit in the indication information carried by the sequence, and can judge whether the indication information comprises the first indication information, the second indication information, the third indication information and the fourth indication information.

And S803, the terminal equipment monitors the indication information in the monitoring window.

The monitoring of the indication information by the terminal device in the monitoring window may be understood as the receiving and detecting of the indication information by the terminal device in the monitoring window.

If the terminal device detects the indication information in the monitoring window, and the indication information includes transmission termination information, executing step S804; otherwise, the terminal equipment starts to continuously transmit the first uplink data after the processing time window is finished; the terminal device starts to continue transmitting the first uplink data after the processing time window is ended may be understood as that the terminal device immediately starts to continue transmitting the first uplink data after the end time of the processing time window is ended, for example: and the terminal equipment immediately starts to continue transmitting the first uplink data after the last subframe of the processing time window is finished, namely the terminal equipment starts to continue transmitting the first uplink data when the terminal equipment starts to process the next subframe of the last subframe of the processing time window.

And S804, the terminal equipment stops transmitting the first uplink data after the processing time window is finished.

If the indication information further includes other indication information, after the processing time window is ended, the first uplink data is stopped being transmitted, and the terminal device starts to execute subsequent behaviors indicated by the other indication information.

In an embodiment, when the indication information is carried by downlink control information, if the indication information includes first indication information, after the processing time window is ended, transmission of the first uplink data is stopped, and after the first scheduling interval window is ended, transmission of second uplink data is started.

The processing time window and the first scheduling interval window are arranged according to the time sequence and are continuously without intervals in time, and the size of the first scheduling interval window is indicated by downlink control information or is a first fixed value or is configured by a high-level signaling.

As shown in the first part of fig. 9, for example, a time sequence relationship that the listening window and the processing time window are arranged in chronological order and are consecutive without an interval in time, the termination time position of the listening window is an nth subframe, the time length of the processing time window is K subframes, and the time length of the first scheduling interval window is K1-1 subframes, when the indication information is carried by the downlink control information, if the indication information includes the first indication information, the terminal device starts at a subframe next to the n + K subframe, stops transmitting the first uplink data, and starts at the n + K1 subframe, starts transmitting the second uplink data, where K1>0.

In an embodiment, when the indication information is carried by downlink control information, if the indication information includes second indication information, after the processing time window is ended, transmission of the first uplink data is stopped, and after the second scheduling interval window is ended, reception of the downlink data is started.

The processing time window and the second scheduling interval window are arranged according to the time sequence and are continuously without intervals in time, and the size of the second scheduling interval window is dynamically indicated by downlink control information or is a second fixed value or is semi-statically configured by high-level signaling. The second scheduling interval window may be a scheduling time domain in DCI. As shown in the second part of fig. 9, taking a time sequence relationship that the listening window and the processing time window are arranged in time sequence and are continuous without interval in time as an example, the termination time position of the listening window is an nth subframe, the time length of the processing time window is K subframes, and the time length of the second scheduling interval window is K2-1 subframes, when the indication information is carried by the downlink control information, if the processing indication information includes the second indication information, the terminal device starts at a subframe next to the nth + K subframes, stops transmitting the first uplink data, and starts at the nth + K2 subframe subframes, so as to start receiving the downlink data, where K2>0. The third part in fig. 9 shows that when the indication information is carried by the downlink control information, if the indication information includes the transmission termination information, the terminal device stops transmitting the first uplink data when starting at a subframe next to the (n + K) th subframe after the start time of the listening window.

In an embodiment, when the indication information is carried by a sequence, if the indication information includes third indication information, the terminal device stops transmitting the first uplink data after the processing time window is ended, and starts monitoring downlink control information after the time window is adjusted;

the sequence may be a ZC (Zadoff-Chu) sequence or a Pseudo random Code (PN) sequence, and the specific sequence is not limited in the embodiment of the present application.

The processing time window and the adjusting time window are arranged according to the time sequence and are continuous without intervals in time, and the size of the adjusting time window is a third fixed value or is configured by high-level signaling in a semi-static mode. And the adjusting time window and the NPDCCH monitoring window are arranged according to the time sequence and are continuous without intervals in time, and downlink scheduling Assignment (DL Assignment) of the DCI is monitored in the NPDCCH monitoring window. And monitoring and receiving an uplink scheduling Grant (UL Grant) in the NPDCCH monitoring window. As shown in the third part of fig. 10, taking a timing relationship that the listening window is located in the UCG, the listening window and the processing time window are arranged in time sequence and are continuous without an interval in time, and the termination time of the processing time window overlaps with the termination time of the UCG as an example, the termination time position of the listening window is an nth subframe, the time length of the processing time window is K subframes, and the time length of the adjusting time window is K3 subframes, when the indication information is carried by the sequence, if the processing indication information includes third indication information, the terminal device starts at a next subframe of n + K subframes, stops transmitting the first uplink data, and starts at a next subframe of n + K3 subframes, starts monitoring the downlink control information, where K3>0.

In an embodiment, when the indication information is carried by a sequence, if the processing indication information includes fourth indication information, the terminal device stops transmitting the first uplink data when the processing time window is ended, and the terminal device suspends monitoring downlink control information before a monitoring opportunity configured in a search space of a next NDPCCH arrives. As shown in the second part of fig. 10, taking a timing relationship that the listening window is located in the UCG, the listening window and the processing time window are arranged in time sequence and are continuous without interval in time, and the termination time of the processing time window overlaps with the termination time of the UCG as an example, the termination time position of the listening window is an nth subframe, and the time length of the processing time window is K subframes, when the indication information is carried by the sequence, if the processing indication information includes fourth indication information, the terminal device starts in a next subframe of the (n + K) th subframe, stops transmitting the first uplink data, and suspends monitoring the DCI before a monitoring opportunity configured in the search space of the next NPDCCH arrives. It should be noted that, when the indication information is carried by the sequence, the terminal device needs to perform frequency synchronization, for example: and carrying out frequency synchronization by introducing a narrow-band downlink auxiliary synchronization signal NSSS, or a narrow-band downlink main synchronization signal NPSSS, or an Additional reference signal Additional RS. The first part of fig. 10 shows that the terminal device does not monitor the sequence carrying the indication information in the monitoring window, and then the terminal device starts to continue transmitting the first uplink data starting at the next subframe of the (n + K) th subframes.

In the method described in fig. 8, the network device decodes the uplink data, generates the indication information, and sends the indication information to the terminal device, and the terminal device monitors the indication information in the monitoring window, and stops transmitting the uplink data and executing the subsequent uplink/downlink scheduling and monitoring actions according to the indication information after the processing time window is finished, so that the utilization rate of the indication information is improved, the time sequence relationship between the indication information monitoring and processing, the subsequent uplink/downlink scheduling and monitoring actions is reasonably arranged, and unnecessary terminal energy consumption and waste of system uplink resources are avoided.

Referring to fig. 11, another flow chart of a data transmission method provided in the embodiments of the present application, the present specification provides the method operation steps as described in the embodiments or the flow chart, but more or less operation steps can be included based on conventional or non-inventive labor. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of sequences, and does not represent a unique order of performance. In the actual execution of the terminal or the storage medium product, the methods according to the embodiments or shown in the drawings can be executed sequentially or in parallel. As shown in fig. 11 in detail, the method includes:

and S1101, the terminal equipment monitors the indication information in the monitoring window.

S1102: and if the terminal equipment detects the indication information in the listening window and the indication information comprises transmission termination information, stopping transmitting the first uplink data after the processing time window is finished.

Wherein a start time of the processing time window is after a start time of the listening window; and the first uplink data is suspended from being transmitted in the listening window and the processing time window. The specific implementation process of steps S1101 to S1102 is detailed in fig. 8, and details of step 803 and step 804 are not repeated here.

In the method described in fig. 11, the terminal device monitors the indication information in the monitoring window, and stops transmitting the uplink data and executing subsequent uplink/downlink scheduling and monitoring actions according to the indication information after the processing time window is over, so that not only is the utilization rate of the indication information improved, but also the time sequence relationship between the indication information monitoring and processing, and the subsequent uplink/downlink scheduling and monitoring actions is reasonably arranged, and unnecessary terminal energy consumption and waste of system uplink resources are avoided.

The following describes a data transmission device provided in an embodiment of the present application. In the embodiment of the present application, the data transmission device may be a terminal device, or may be a device (e.g., a chip or a processor) used in cooperation with the terminal device. The data transmission device may also be a network device, or may also be a device (e.g., a chip or a processor) used in cooperation with the network device.

Referring to fig. 12, a schematic structural diagram of a data transmission apparatus provided in an embodiment of the present application is shown, where the data transmission apparatus includes a processing module 1201 and a communication module 1202.

For the case where the data transmission apparatus is used to implement the functions of the terminal device:

the processing module 1201 is configured to monitor indication information in a monitoring window by using the first communication module 1202;

the processing module 1201 is further configured to, if the indication information is detected in the listening window and the indication information includes transmission termination information, stop transmitting the first uplink data after the processing time window is ended;

In an embodiment, the first uplink data is suspended from being transmitted within the listening window and the processing time window.

In an embodiment, the indication information is carried by downlink control information.

In an embodiment, the processing module 1201 is further configured to, if the indication information includes first indication information, stop transmitting the first uplink data after the processing time window is ended, and start transmitting second uplink data after the first scheduling interval window is ended;

In an embodiment, the processing module 1201 is further configured to, if the indication information includes second indication information, stop transmitting the first uplink data after the processing time window is ended, and start receiving downlink data after a second scheduling interval window is ended;

the processing time window and the second scheduling interval window are arranged according to the time sequence and are continuously without intervals in time, and the size of the second scheduling interval window is dynamically indicated by downlink control information or is a second fixed value or is semi-statically configured by high-level signaling.

In an embodiment, the indication information is carried by a sequence.

In an embodiment, the processing module 1201 is further configured to, if the indication information includes third indication information, stop transmitting the first uplink data after the processing time window is ended, and start monitoring downlink control information after the adjusting time window is ended;

the processing time window and the adjusting time window are arranged according to a time sequence and are continuously arranged without intervals in time, and the size of the adjusting time window is a third fixed value or is configured by high-level signaling in a semi-static mode.

In an embodiment, the uplink compensation interval and the monitoring window are arranged according to a time sequence and are continuously without interval or separated by i time units in time; wherein i is a positive integer;

or the starting time of the monitoring window is positioned in the uplink compensation interval.

In an embodiment, the start time of the processing time window is within the listening window.

In one embodiment, the listening window and the processing time window are chronologically sequential and temporally contiguous without an interval.

In the case where the data transmission apparatus is used to implement the functions of the terminal device, steps S803 and S804 in the method described in fig. 8 may be implemented.

For the case where the data transmission apparatus is used to implement the functions of a network device:

the processing module 1201 is configured to generate indication information when the first uplink data is decoded; the indication information is transmitted using the communication module 1202.

In one embodiment, the indication information comprises transmission termination information;

and the transmission termination information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished.

In an embodiment, the communication module 1202 is specifically configured to carry the indication information through downlink control information.

In an embodiment, the indication information comprises first indication information;

the first indication information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished, and to start transmitting the second uplink data after the first scheduling interval window is finished;

In an embodiment, the indication information comprises second indication information;

the second indication information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished, and to start receiving the downlink data after the second scheduling interval window is finished;

In an embodiment, the communication module 1202 is specifically configured to carry the indication information through a sequence.

In an embodiment, the indication information further includes third indication information;

the third indication information is used for indicating the terminal equipment to stop transmitting the first uplink data after the processing time window is finished, and to start monitoring downlink control information after the adjustment time window is finished;

the processing time window and the adjusting time window are arranged according to the time sequence and are continuous without intervals in time, and the size of the adjusting time window is a third fixed value or is configured by high-level signaling in a semi-static mode.

In the case where the data transmission apparatus is used to implement the functions of the network device, steps S801 and S802 in the method described in fig. 8 may be implemented.

Referring to fig. 13, a schematic structural diagram of another data transmission apparatus provided in the embodiment of the present application is shown, where the data transmission apparatus includes a processor 1301 and a communication interface 1302.

the processor 1301 is configured to monitor indication information in a monitoring window by using the communication interface 1302;

the processor 1301 is further configured to, if the indication information is detected in the listening window and the indication information includes transmission termination information, stop transmitting the first uplink data after the processing time window is ended;

In an embodiment, the processor 1301 is further configured to, if the indication information includes first indication information, stop transmitting the first uplink data after the processing time window is ended, and start transmitting the second uplink data after the first scheduling interval window is ended;

In an embodiment, the processor 1301 is further configured to, if the indication information includes second indication information, stop transmitting the first uplink data after the processing time window is ended, and start receiving downlink data after a second scheduling interval window is ended;

the processing time window and the second scheduling interval window are arranged according to the time sequence and have no continuous interval in time, and the size of the second scheduling interval window is dynamically indicated by downlink control information or is a second fixed value or is semi-statically configured by high-level signaling.

In an embodiment, the indication information is carried by a sequence.

In an embodiment, the processor 1301 is further configured to, if the indication information includes third indication information, stop transmitting the first uplink data after the processing time window is ended, and start monitoring downlink control information after the time window is adjusted;

or the starting time of the listening window is positioned in an uplink compensation interval.

the processor 1301 is configured to generate indication information when the first uplink data is decoded; the indication is sent using the communication interface 1302.

In an embodiment, the indication information comprises transmission termination information;

In an embodiment, the communication interface 1302 is specifically configured to carry the indication information through downlink control information.

the processing time window and the first scheduling interval window are arranged according to the time sequence and have no continuous interval in time, and the size of the first scheduling interval window is indicated by downlink control information or is a first fixed value or is configured by a high-level signaling.

In an embodiment, the communication interface 1302 is specifically configured to carry the indication information through a sequence.

Accordingly, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes a processor and a memory, and the memory and the processor are coupled, so that the data transmission apparatus executes steps S803 and S804 in the method described in fig. 8.

Accordingly, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes a processor and a memory, and the memory and the processor are coupled, so that the data transmission apparatus executes steps S801 and S802 in the method illustrated in fig. 8.

Accordingly, the present application also provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to execute the method described in fig. 8. It is understood that the computer storage medium herein may include a built-in storage medium in the data transmission apparatus, and may also include an extended storage medium supported by the data transmission apparatus. The computer storage medium provides a storage space storing an operating system of the smart terminal. Also, one or more instructions, which may be one or more computer programs (including program code), are stored in the memory space and are adapted to be loaded and executed by the processor. The computer storage medium may be a high-speed RAM memory, or may be a non-volatile memory (non-volatile memory), such as at least one disk memory; and optionally at least one computer storage medium located remotely from the processor.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by a computer program, which may be stored in a computer readable storage medium and executed by a computer to implement the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

Accordingly, the present application also provides a computer program product, which comprises instructions that, when executed on a computer, cause the computer to perform the method described in fig. 8.

Correspondingly, an embodiment of the present application further provides a data transmission system, where the data transmission system includes a first data transmission device and a second data transmission device, the first data transmission device is configured to implement steps S803 and S804 in the method described in fig. 8, and the second data transmission device is configured to implement steps S801 and S802 in the method described in fig. 8.

While only some embodiments of the invention have been described in detail, it will be understood that the invention is not limited thereto, and that the invention is capable of other embodiments and modifications, which will be apparent to those skilled in the art, and which will be within the scope of the invention as defined by the appended claims.

Claims

1. A method of data transmission, comprising:

monitoring indication information in a monitoring window;

the processing time window is used for processing the detected indication information, the starting time of the processing time window is after the starting time of the listening window, and the first uplink data is transmitted in the listening window and the processing time window in a pause mode.

2. The method of claim 1, wherein the indication information is carried by downlink control information.

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

if the indication information comprises first indication information, stopping transmitting the first uplink data after the processing time window is ended, and starting transmitting second uplink data after the first scheduling interval window is ended;

4. The method of claim 2, wherein the method further comprises:

if the indication information comprises second indication information, stopping transmitting the first uplink data after the processing time window is finished, and starting receiving downlink data after a second scheduling interval window is finished;

5. The method of claim 1, wherein the indication information is carried by a sequence.

6. The method of claim 5, wherein the method further comprises:

if the indication information comprises third indication information, stopping transmitting the first uplink data after the processing time window is finished, and starting monitoring downlink control information after the time window is adjusted;

7. The method according to any of claims 1-6, characterized in that the uplink compensation interval is arranged in time sequence with the listening window and is continuous without interval or separated by i time units in time; wherein i is a positive integer;

8. The method of any of claims 1-6, wherein a start time of the processing time window is within the listening window.

9. The method of any one of claims 1-6, wherein the listening window is chronologically sequential to the processing time window and temporally contiguous without an interval.

10. A method of data transmission, comprising:

generating indication information under the condition that the first uplink data is decoded;

sending indication information to enable terminal equipment to monitor the indication information in a monitoring window, and if the indication information is detected in the monitoring window and comprises transmission termination information, stopping transmitting the first uplink data after a processing time window is finished;

11. The method of claim 10, wherein the indication information comprises transmission termination information;

12. The method of claim 11, wherein said sending the indication information comprises:

and carrying the indication information through downlink control information.

13. The method of claim 12, wherein the indication information comprises first indication information;

14. The method of claim 12, wherein the indication information comprises second indication information;

15. The method of claim 11, wherein said sending the indication information comprises:

and carrying the indication information through a sequence.

16. The method of claim 15, wherein the indication information further includes third indication information;

17. A data transmission device is characterized by comprising a processing module and a communication module;

18. A data transmission device, wherein the data transmission device comprises a processor and a communication interface;

the processor is used for monitoring the indication information in the monitoring window by utilizing the communication interface;

19. A data transmission device arranged to implement the method of any one of claims 1 to 9.

20. A data transmission apparatus, characterized in that the data transmission apparatus comprises a processor and a memory, the memory and the processor being coupled such that the data transmission apparatus performs the method of any of claims 1-9.

21. A data transmission device is characterized by comprising a processing module and a communication module;

the processing module is used for generating indication information under the condition of decoding the first uplink data; sending indication information by using a communication module so that the terminal equipment monitors the indication information in a monitoring window, and if the indication information is detected in the monitoring window and comprises transmission termination information, stopping transmitting the first uplink data after a processing time window is finished;

the processing time window is used for processing the detected indication information, the starting time of the processing time window is after the starting time of the listening window, and the first uplink data is suspended in the listening window and the processing time window.

22. A data transmission apparatus, characterized in that the data transmission apparatus comprises a processor and a communication interface;

the processor is configured to generate indication information when the first uplink data is decoded; sending indication information by using a communication interface so that the terminal equipment monitors the indication information in a monitoring window, and if the indication information is detected in the monitoring window and comprises transmission termination information, stopping transmitting the first uplink data after a processing time window is finished;

23. A data transmission device arranged to implement the method of any one of claims 10 to 16.

24. A data transmission apparatus, characterized in that the data transmission apparatus comprises a processor and a memory, the memory and the processor being coupled such that the data transmission apparatus performs the method of any of claims 10-16.

25. A computer-readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-16.

26. A data transmission system, characterized in that the data transmission system comprises a first data transmission device for implementing the method of any one of claims 1-9 and a second data transmission device for implementing the method of any one of claims 10-16.