WO2020088680A1 - Information transmission method and communication apparatus - Google Patents

Abstract

Disclosed in the present application are an information transmission method and a communication apparatus, belonging to the field of communication technologies. Said method comprises: a terminal device receiving a first DCI sent by a network device, and determining, according to the indication of the first DCI, an operation manner of an inactivity timer, the first DCI carrying first indication information and second indication information, the first indication information being used to indicate data transmission, and the second indication information being used to indicate the operation manner of the inactivity timer in DRX. This solution performs an explicit indication of the operation manner of the inactivity timer by means of the second indication information carried in the first DCI, and thus is able to reduce the power consumption of the terminal device and save the electric quantity of the terminal device while ensuring that data can be transmitted in a timely and efficient manner, thereby improving the lifetime of the terminal device.

Description

Information transmission method and communication device

Cross-reference of related applications

This application requires the priority of the Chinese patent application filed on November 02, 2018 in the Chinese Patent Office with the application number 201811302951.9 and the application name "An Information Transmission Method and Communication Device", the entire contents of which are incorporated by reference in this application Medium; This application requires the priority of a Chinese patent application filed on January 11, 2019 in the Chinese Patent Office with application number 201910028472.0 and application name "An Information Transmission Method and Communication Device", the entire contents of which are incorporated by reference in In this application.

Technical field

This application relates to the field of communication technology, and in particular, to an information transmission method and a communication device.

Background technique

In order to reduce the power consumption of terminal devices, discontinuous reception (DRX) mechanisms have been introduced in wireless communication systems, such as long-term evolution (LTE) systems. The power consumption overhead of terminal devices is mainly concentrated In the blind detection of the physical downlink control channel (PDCCH), the DRX mechanism allows the terminal device to periodically enter the sleep state (or sleep mode, or offmode) without blinding the PDCCH Detection, when blind detection is needed, wake up from the sleep state, so that the power consumption of the terminal device can be reduced as much as possible to achieve the purpose of saving power.

After the terminal device wakes up from the sleep state, the terminal device will continue to perform blind detection on the PDCCH for a period of time. This process still has a large power consumption. Therefore, if the performance of the PDCCH detection can be guaranteed, reduce this Part of the power consumption overhead can reduce the power of the terminal equipment and improve the endurance.

Summary of the invention

Embodiments of the present application provide an information transmission method and a communication device, which are used to reduce power consumption of a terminal device.

In the first aspect, an information transmission method is provided. The method can be executed by a terminal device. In this method, the terminal device receives the first DCI sent by the network device, and determines the operation of the inactivity timer in DRX according to the indication of the first DCI In this manner, the first DCI carries first indication information and second indication information, where the first indication information is used to indicate data transmission, and the second indication information is used to indicate the operation mode of the inactivity timer.

In this solution, the second indication information carried in the first DCI can be used to explicitly indicate the operation mode of the inactivity timer. After receiving the first DCI, the terminal device can specify the specific operation mode of the inactivity timer. Instead of restarting the inactivity timer as long as the DCI used to instruct data transmission is received in the prior art and restarting the timing from the beginning, this can decouple the DCI instructing data transmission in the prior art to correspond to the inactivity timer to start timing or restart The implied instruction function of setting the timer and restarting the timer. The different operation modes of inactivity timer can increase the flexibility of scheduling. For example, the network device can instruct to keep the current timer value and continue the timer operation when the amount of data that needs to be transmitted decreases. Method, or you can indicate the operation mode to stop timing when there is no amount of data to be transmitted, etc., so as to balance the flexibility of scheduling and the power consumption between terminal devices, to ensure the timely and effective transmission of data Under the premise, the power consumption of the terminal device can be reduced as much as possible, saving About the power of the terminal equipment, improve the endurance of the terminal equipment.

In a possible design, the operation mode of inactivity timer includes any of the following: start timing, stop timing, reset timing, and continue timing.

In this scheme, by configuring multiple inactivity timer operation modes, the network device can indicate the corresponding inactivity timer operation mode to the terminal device according to the amount of data to be transmitted, thereby improving the flexibility of the inactivity timer operation , To further balance the timely transmission of data and the low power consumption of the terminal device, and to reduce the power consumption of the terminal device as much as possible on the premise of ensuring the timely and effective transmission of data.

In a possible design, the second indication information is explicitly indicated in the first DCI, and the first DCI is used to schedule new transmission data or retransmission data.

In a possible design, the NDI field in the first DCI carries first indication information, and the fields in the first DCI other than the NDI field carry second indication information.

In the above solution, by explicitly indicating the operation mode of the inactivity timer in the DCI used to indicate data transmission, it can be decoupled that the DCI in the prior art indicating data transmission must correspond to the implicit restart of the inactivity timer when restarting the timing. Including indication function, for example, it can decouple the NDI in the prior art to indicate the newly transmitted data, the implicit indication function of inactivity timer must be started, in other words, the explicit indication of the operation mode of inactivity timer can be overwritten by the second indication information NDI implicitly indicates whether to activate or not to activate the inactivity timer function.

In a possible design, when the first DCI is used to schedule newly transmitted data, the second indication information indicates that the operation mode of the inactivity timer is to continue timing or stop timing or start timing; or, when the first DCI is used to schedule retransmission When transferring data, the second indication information is used to indicate that the operation mode of the inactivity timer is to reset the timer or stop the timer or start the timer.

In the first DCI, when the newly transmitted data or the retransmitted data is indicated by the NDI field, the corresponding second indication information can explicitly indicate the inactivity timer as the specific operation mode described above, compared to the existing implicit indication of inactivity through NDI The timer starts timing or resets the timing method, which can increase the flexibility of the timing operation instructions of the inactivity timer, in order to balance the scheduling flexibility and the power consumption between the terminal devices, and ensure the timely and effective transmission of data. Under the premise, the power consumption of the terminal device can be reduced as much as possible, the power of the terminal device can be saved, and the endurance of the terminal device can be improved.

In a possible design, the second indication information indicates whether the value of a field in the first DCI is the same as the value of the field in the previous DCI of the first DCI; where, if the values are the same, The second indication information indicates that the operation mode of the inactivity timer is to stop or continue to count, and if the value is different, the second indication information indicates that the operation mode of the inactivity timer is to start or reset the timer; or, if the value is the same, the first The second instruction information indicates that the operation mode of the inactivity timer is to start the timer or reset the timer, and, if the value is different, the second instruction information indicates that the operation mode of the inactivity timer is to stop the timer or continue the timer.

In the above solution, the operation mode of the inactivity timer can be indicated according to whether the field used to carry the second indication information is flipped, and flipping here refers to the value of this field and the value in the previous DCI of the first DCI Whether the value of this field changes compared to, for example, whether it changes from 0 to 1 or from 1 to 0. For example, a new field is added on the basis of the existing DCI format, and the operation mode of the inactivity timer is indicated by whether the value of the newly added field is the same as the value of the previous DCI of the first DCI.

In a possible design, for a plurality of DCIs that are continuously transmitted and include the first DCI, the number of consecutive repeated transmissions with the same value as the field in the first DCI is greater than or equal to a predetermined threshold, which is It is an integer greater than or equal to 2.

In a possible design, after determining the operation mode of the inactivity timer according to the indication of the first DCI, the terminal device may control the inactivity timer to perform the timing operation according to the operation mode indicated by the first DCI.

In this solution, the terminal device can adjust the operation mode of the inactivity timer according to the instructions of the network device to achieve the same perception as the network device.

In a possible design, the format of the first DCI is any one of format 0_0, format 0_1, format 1_0, and format 1_1. When the format of the first DCI is format 0_0 or format 1_0 or format 1_1, the CRC bits of the first DCI are scrambled by C-RNTI or CS-RNTI; when the format of the first DCI is format 0_1, the CRC of the first DCI The bits are scrambled by C-RNTI or CS-RNTI or SP-CSI-RNTI.

Since the DCI in the above format is used to indicate uplink or downlink data scheduling, it is suitable for simultaneously indicating, through the second information, whether the uplink or downlink data scheduling is enabled or restarted inactivity timer. The reason why the second indication information is sent using only the DCI format corresponding to the scrambled RNTI is because these corresponding RNTIs are controlled by the DRX PDCCH detection regulations, while the DCI formats scrambled by other RNTIs are not affected. DRX PDCCH detection regulations are limited, there is no need to introduce additional field overhead, so the overhead can be reduced. By configuring the scrambling methods listed above, the DCI overhead can be reduced as much as possible.

In a possible design, the terminal device receives the first DCI sent by the network device during the DRX active time.

In the above solution, the DRX active time refers to the process in which the terminal device is in the active state, that is, the duration corresponding to the active state, and the terminal device can detect the first DCI without causing the terminal device not to detect the PDCCH. Missed inspection.

In a possible design, the terminal device receives the first DCI sent by the network device during the HARQ round-trip time timer.

By transmitting the first DCI during the HARQ round-trip time timer, the terminal device can more quickly detect the scheduling of the rush transmission and reduce the retransmission delay.

In a possible design, the first DCI also carries third indication information, which is used to indicate the total timing value of the inactivity timer, and the total indication value indicated by the third indication information is that the network device is configured as a terminal device One of multiple total timing values configured.

In this solution, the network device can configure multiple total timing values for the inactivity timer in the terminal device. The total timing value of the inactivity timer is the inactivity timer value, and the terminal device enters the off state when the inactivity timer reaches the total timing value. , So the total timing value of different inactivity timers is equivalent to configuring different times to reach the off state. In this way, the network device can adaptively select different total timing values according to the amount of data currently required to be transmitted, and then pass The third instruction information is allocated to the inactivity timer in the terminal device, which can further balance the timely transmission of data and the low power consumption of the terminal device, and on the premise of ensuring the timely and effective transmission of data, reduce the terminal device as much as possible. Power consumption.

In a possible design, when the total timing value indicated by the third indication information is less than or equal to the timed value of the inactivity timer, it indicates that the inactivity timer has expired.

Under normal circumstances, the total value of the timing indicated by the third indication information is less than or equal to the timed value of the inactivity timer as an incorrect indication, because such an indication is not logical, but if it is understood as The error logic instruction may cause abnormal operation of the inactivity timer, so in this solution, when the aforementioned error logic instruction appears, it can be understood that the inactivity timer's timing is over, that is, the system can tolerate the aforementioned error logic Indication, this can improve the fault tolerance of the system, and then can ensure the normal operation of the inactivity timer, thereby improving the reliability and stability of the system.

In a possible design, the total timing value indicated by the third indication information is smaller than the current total timing value of the inactivity timer, that is, the total reconfiguration timing value of the network device is smaller than the current total timing value of the inactivity timer.

In this solution, when the total timing value of the network device reconfiguration is less than the current total timing value of inactivity timer, the time to reach the off state can be shortened as much as possible, so that the terminal device can enter the off state as soon as possible, and the power of the terminal device is reduced as much as possible Consume.

In a possible design, the second indication information and / or the third indication information are indicated in any one of the following ways: the second indication information and the third indication information are respectively indicated by different fields; or, the second indication information is passed Joint indication of different fields; or, the third indication information is jointly indicated by different fields; or, the second indication information and the third indication information are simultaneously indicated by the value of one field; or, the second indication information and the third indication information It is indicated by different bits in a field.

In this solution, a variety of ways to indicate the second indication information and the third indication information are provided, which can increase the flexibility of the indication, which facilitates the flexible use of the fields and bits in the first DCI according to the actual situation, enhancing the application of the scheme Sex.

In a possible design, the first DCI also carries fourth indication information, and the fourth indication information is used to indicate the timed value of the inactivity timer.

In this solution, the network device can configure multiple timed values for the inactivity timer in the terminal device. The timed value of the inactivity timer is equivalent to configuring a different time to reach the off state, so that the network device can transmit according to the current need. The amount of data is used to adaptively select different total timing values, and then configure the inactivity timer in the terminal device through the fourth indication information, which can further balance the timely transmission of data and the low power consumption of the terminal device. Under the premise of ensuring the timely and effective transmission of data, the power consumption of the terminal device is reduced as much as possible.

In a possible design, the timed value includes the number of time units or the timed proportion value, and the timed proportion value is used to indicate the proportion of the total time value of the inactivity timer.

In this scheme, the timed value can be expressed in different ways, which can increase the flexibility of the scheme.

In a possible design, when the counted value indicated by the fourth indication information is greater than or equal to the total value of the timing of the inactivity timer, it indicates that the timing of the inactivity timer is over.

Under normal circumstances, it should be understood that the timed value indicated by the fourth indication information is greater than or equal to the total time value of inactivity timer as an erroneous indication, because such an indication is not logical, but if it is understood If it is an indication of error logic, it may cause abnormal operation of the inactivity timer, so in this solution, when the indication of the aforementioned error logic occurs, it can be understood that the timing of the inactivity timer is full, that is, the system can tolerate the aforementioned error logic Instruction, this can improve the fault tolerance of the system, and then can ensure the normal operation of the inactivity timer, thereby improving the reliability and stability of the system.

In a possible design, the timed value indicated by the fourth indication information is greater than the current timed value of inactivity timer, that is, the network device reconfigured the timed value for the inactivity timer in the terminal device is greater than the current time of inactivity timer Of the timed value.

In this solution, the time to reach the off state can be shortened as much as possible, so that the terminal device can enter the off state as early as possible, and the power consumption of the terminal device is reduced as much as possible.

In a possible design, the second indication information and / or the fourth indication information are indicated in any one of the following ways: the second indication information and the fourth indication information are respectively indicated by different fields; or, the second indication information is passed Joint indication of different fields; or, the fourth indication information is jointly indicated by different fields; or, the second indication information and the fourth indication information are simultaneously indicated by the value of one field; or, the second indication information and the fourth indication information It is indicated by different bits in a field.

In this solution, multiple ways of indicating the second indication information and the fourth indication information are provided, which can increase the flexibility of the indication, so as to flexibly use the fields and bits in the first DCI according to the actual situation, and enhance the application of the scheme Sex.

In a possible design, the first DCI may simultaneously carry the foregoing first indication information, second indication information, third indication information, and fourth indication information.

In this solution, the third indication information and the fourth indication information can be used to shorten the time to reach the off state in a double degree, so that the off state can be entered faster, so as to reduce the power consumption of the terminal device as soon as possible.

In a possible design, the first DCI is transmitted in an associated search space, and the configuration message configuration configuring the associated search space carries at least one of second indication information, third indication information, or fourth indication information, The third indication information is used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer.

In the above solution, since the second indication information, the third indication information, and the fourth indication information are indication information used to characterize that the first DCI in this application is different from the existing DCI, which is equivalent to the existing DCI On the basis, some information related to the timing of the inactivity timer can be explicitly indicated by the second indication information, the third indication information, and the fourth indication information, and some new indication functions are added relative to the existing DCI, so in the interpretation In the first DCI, it needs to be interpreted according to a new interpretation method. In order to realize the unified perception between the terminal and the network, the network device can inform the terminal device through the RRC configuration message that the new interpretation method in the embodiments of the present application is required. To interpret the first DCI received subsequently, a simple understanding, the network device can inform the terminal device through the RRC configuration message that the first DCI is an operation mode that can indicate the inactivity timer, can indicate the total value of the inactivity timer, and can time DCI of at least one of the timed values of inactivity timer, and then, the terminal device may Set messages between network devices and achieve a unified perception, to ensure accurate information exchange between the terminal and the network.

In a possible design, if the first DCI is transmitted in the USS, the first DCI carries at least one of the second indication information, the third indication information, or the fourth indication information; if the first DCI is transmitted in the CSS , The first DCI does not carry second indication information, third indication information, or fourth indication information.

In the above solution, the terminal device can be directly indicated whether the DCI has the above-mentioned new indication function according to the type of the search space, which can save the signaling overhead of the DCI transmitted in the CSS-type search space without requiring the aforementioned new function .

In a second aspect, an information transmission method is provided. The method may be performed by a network device. In this method, the network device determines a first DCI and sends the first DCI to a terminal device. The first DCI carries the first Indication information and second indication information, where the first indication information is used to indicate data transmission, and the second indication information is used to indicate the operation mode of the inactivity timer in DRX.

In this solution, the second indication information carried in the first DCI can be used to explicitly indicate the operation mode of the inactivity timer. After receiving the first DCI, the terminal device can specify the specific operation mode of the inactivity timer. Instead of restarting the inactivity timer as long as the DCI used to indicate data scheduling is received in the prior art and restarting the timing from the beginning, this can decouple the DCI indicating data transmission in the prior art must correspond to the inactivity timer start timing or restart The implied instruction function of setting the timer and restarting the timer. The different operation modes of inactivity timer can increase the flexibility of scheduling. For example, the network device can instruct to keep the current timer value and continue the timer operation when the amount of data that needs to be transmitted decreases. Method, or you can indicate the operation mode to stop timing when there is no amount of data to be transmitted, etc., so as to balance the flexibility of scheduling and the power consumption between terminal devices, to ensure the timely and effective transmission of data Under the premise, the power consumption of the terminal device can be reduced as much as possible, Capacity of about terminal equipment, improve equipment endurance terminal equipment.

In a possible design, before sending the first DCI to the terminal device, the network device may first send DRX configuration information to the terminal device, so that the terminal device completes the DRX configuration according to the DRX configuration information and starts the DRX mode.

In a possible design, the second indication information is explicitly indicated in the first DCI, and the first DCI is used to schedule new transmission data or retransmission data.

In a possible design, the NDI field in the first DCI carries first indication information, and the fields in the first DCI other than the NDI field carry second indication information.

In a possible design, when the first DCI is used to schedule newly transmitted data, the second indication information indicates that the operation mode of the inactivity timer is to continue timing or stop timing or start timing; or, when the first DCI is used to schedule retransmission When transferring data, the second indication information is used to indicate that the operation mode of the inactivity timer is to reset the timer or stop the timer or start the timer.

In a possible design, the second indication information indicates whether the value of a field in the first DCI is the same as the value of the field in the previous DCI of the first DCI; where, if the values are the same, The second indication information indicates that the operation mode of the inactivity timer is to stop or continue to count, and if the value is different, the second indication information indicates that the operation mode of the inactivity timer is to start or reset the timer; or, if the value is the same, the first The second instruction information indicates that the operation mode of the nactivity timer is to start the timer or reset the timer, and, if the value is different, the second instruction information indicates that the operation mode of the inactivity timer is to stop the timer or continue the timer.

In a possible design, for a plurality of DCIs that are continuously transmitted and include the first DCI, the number of consecutive repeated transmissions with the same value as the field in the first DCI is greater than or equal to a predetermined threshold, which is a predetermined threshold It is an integer greater than or equal to 2.

In a possible design, the operation mode of inactivity timer includes any one of the following: start, stop, reset timing, and continue timing.

In a possible design, the format of the first DCI is any one of format 0_0, format 0_1, format 1_0, and format 1_1. When the format of the first DCI is format 0_0 or format 1_0 or format 1_1, the CRC bits of the first DCI are scrambled by C-RNTI or CS-RNTI; when the format of the first DCI is format 0_1, the CRC of the first DCI The bits are scrambled by C-RNTI or CS-RNTI or SP-CSI-RNTI.

In a possible design, the terminal device receives the first DCI sent by the network device during the DRX active time.

In a possible design, the terminal device receives the first DCI sent by the network device during the HARQ round-trip time timer.

In a possible design, the first DCI also carries third indication information, which is used to indicate the total timing value of the inactivity timer, and the total indication value indicated by the third indication information is that the network device is configured as a terminal device One of multiple total timing values configured.

In a possible design, when the total timing value indicated by the third indication information is less than or equal to the timed value of the inactivity timer, it indicates that the inactivity timer has expired.

In a possible design, the total timing value indicated by the third indication information is smaller than the current total timing value of inactivity timer, that is, the total reconfiguration timing value of the network device is smaller than the current total timing value of inactivity timer.

In a possible design, the second indication information and / or the third indication information are indicated in any one of the following ways: the second indication information and the third indication information are respectively indicated by different fields; or, the second indication information is passed Joint indication of different fields; or, the third indication information is jointly indicated by different fields; or, the second indication information and the third indication information are simultaneously indicated by the value of one field; or, the second indication information and the third indication information It is indicated by different bits in a field.

In a possible design, the first DCI also carries fourth indication information, and the fourth indication information is used to indicate the timed value of the inactivity timer.

In a possible design, the timed value includes the number of time units or the timed proportion value, and the timed proportion value is used to indicate the proportion of the total time value of the inactivity timer.

In a possible design, when the counted value indicated by the fourth indication information is greater than or equal to the total value of the timing of the inactivity timer, it indicates that the timing of the inactivity timer is over.

In a possible design, the timed value indicated by the fourth indication information is greater than the current timed value of inactivity timer, that is, the network device reconfigured the timed value for the inactivity timer in the terminal device is greater than the current time of inactivity timer Of the timed value.

In a possible design, the second indication information and / or the fourth indication information are indicated in any one of the following ways: the second indication information and the fourth indication information are respectively indicated by different fields; or, the second indication information is passed Joint indication of different fields; or, the fourth indication information is jointly indicated by different fields; or, the second indication information and the fourth indication information are simultaneously indicated by the value of one field; or, the second indication information and the fourth indication information It is indicated by different bits in a field.

In a possible design, the first DCI may simultaneously carry the foregoing first indication information, second indication information, third indication information, and fourth indication information.

In a possible design, the first DCI is transmitted in an associated search space, and the configuration message configuration configuring the associated search space carries at least one of second indication information, third indication information, or fourth indication information, The third indication information is used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer.

In a possible design, if the first DCI is transmitted in the USS, the first DCI carries at least one of the second indication information, the third indication information, or the fourth indication information; if the first DCI is transmitted in the CSS , The first DCI does not carry second indication information, third indication information, or fourth indication information.

Since the various possible design solutions in the second aspect and the first possible design solutions in the first aspect are the same or corresponding solutions, the beneficial technical effects of the various possible design solutions in the second aspect can be found in On the one hand, it describes the effect of various possible designs.

In a third aspect, a communication device is provided. The communication device may be a terminal device or a device in a terminal device. The device may include a processing module and a receiving module. These modules may perform any of the design examples of the first aspect. The corresponding function performed by the terminal device in.

According to a fourth aspect, a communication device is provided. The communication device may be a network device or a device in a network device. The device may include a processing module and a sending module. These modules may perform any of the design examples of the second aspect. The corresponding function performed by the network device in.

According to a fifth aspect, a communication apparatus is provided. The communication apparatus may be a terminal device, and the communication apparatus includes a processor for implementing the method described in the first aspect. The communication device may further include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can call and execute program instructions stored in the memory to implement the method described in the first aspect. The communication apparatus may further include a transceiver for communicating with the other apparatus, for example, the other apparatus is, for example, a network apparatus.

According to a sixth aspect, a communication apparatus is provided. The communication apparatus may be a network device, and the communication apparatus includes a processor for implementing the method described in the second aspect above. The communication device may further include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can call and execute program instructions stored in the memory to implement the method described in the second aspect above. The communication device may further include a transceiver, which is used for the communication device to communicate with other devices. For example, the other device is, for example, a terminal device.

According to a seventh aspect, a computer-readable storage medium is provided. The computer-readable storage medium includes computer instructions. When the computer instructions run on a computer, the computer is caused to perform the method described in the first aspect.

In an eighth aspect, a computer-readable storage medium is provided. The computer-readable storage medium includes computer instructions. When the computer instructions run on a computer, the computer is caused to perform the method described in the second aspect.

In a ninth aspect, a chip system is provided. The chip system includes a processor, and may further include a memory, for implementing the method described in the first aspect. The chip system may be composed of chips, or may include chips and other discrete devices.

According to a tenth aspect, a chip system is provided. The chip system includes a processor and may further include a memory for implementing the method described in the second aspect. The chip system may be composed of chips, or may include chips and other discrete devices.

According to an eleventh aspect, there is provided a communication system including the communication device according to the third aspect and the communication device according to the fourth aspect.

According to a twelfth aspect, there is provided a communication system including the communication device according to the fifth aspect and the communication device according to the sixth aspect.

According to a thirteenth aspect, there is provided a computer program product containing instructions. The computer program product stores instructions, which when executed on a computer, causes the computer to perform the method described in the first aspect above.

According to a fourteenth aspect, there is provided a computer program product containing instructions. The computer program product stores instructions, which when executed on a computer, causes the computer to perform the method described in the second aspect above.

In the embodiment of the present application, the second indication information carried in the first DCI explicitly indicates the operation mode of the inactivity timer, and on the premise of ensuring the timely and effective transmission of data, the power consumption of the terminal device can be reduced as much as possible To save the power of the terminal equipment and improve the endurance of the terminal equipment.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of the C-DRX mechanism;

2 is a schematic diagram of an application scenario according to an embodiment of the present application;

3 is a flowchart of an information transmission method in an embodiment of this application;

4a is a schematic diagram of timing of a downlink HARQ round-trip time timer HARQ-RTT-TimerDL and a downlink retransmission timer RetransmissionTimerDL in an embodiment of this application;

4 is a timing diagram of inactivity timer in the embodiment of the present application;

5 is another timing diagram of inactivity timer in the embodiment of the present application;

6A is a schematic diagram of adjusting the total timing value of inactivity timer in the embodiment of the present application;

6B is another schematic diagram of adjusting the total timing value of inactivity timer in the embodiment of the present application;

7A is a schematic diagram of adjusting the timed value of inactivity timer in the embodiment of the present application;

7B is another schematic diagram of adjusting the timed value of inactivity timer in the embodiment of the present application;

FIG. 8 is a schematic diagram of adjusting the total timing value and the timed value of inactivity timer in the embodiment of the present application;

9 is a structural block diagram of a communication device in an embodiment of this application;

10 is another structural block diagram of a communication device in an embodiment of this application;

11 is a schematic structural diagram of a communication device in an embodiment of this application;

FIG. 12 is another schematic structural diagram of a communication device in an embodiment of this application.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application.

Hereinafter, some terms in the embodiments of the present application will be explained to facilitate understanding by those skilled in the art.

1. Terminal devices, including devices that provide voice and / or data connectivity to users, for example, may include handheld devices with wireless connection capabilities, or processing devices connected to wireless modems. The terminal device can communicate with the core network via a radio access network (RAN) and exchange voice and / or data with the RAN. The terminal equipment may include user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote Remote station, access point (AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), or user Equipment (user device), etc. For example, it may include mobile phones (or “cellular” phones), computers with mobile terminal devices, portable, pocket-sized, handheld, built-in or on-board mobile devices, smart wearable devices (such as smart watches, smart phones) Glasses, smart helmet), etc. For example, personal communication service (PCS) telephones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, PDA) and other equipment. Also includes restricted devices, such as devices with low power consumption, or devices with limited storage capacity, or devices with limited computing power, such as barcodes, radio frequency identification (RFID), sensors, and global positioning systems (global positioning system) positioning sensing system (GPS), laser scanners and other information sensing equipment.

The terminal device may also be a virtual reality (virtual reality, VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (remote), remote Wireless terminals in surgery (medical surgery), wireless terminals in smart grid (smart grid), wireless terminals in transportation safety (transportation safety), wireless terminals in smart city (smart city), smart homes (smart home) Wireless terminals in

2. Network equipment, for example, including access network (AN) equipment and core network equipment. The access network device is, for example, a base station (for example, an access point), and may refer to a device that communicates with a wireless terminal device through one or more cells on an air interface in the access network. The network equipment can be used to convert received air frames and internet protocol (IP) packets to each other as a router between the terminal equipment and the rest of the access network, where the rest of the access network can include the IP network . The network equipment can also coordinate attribute management of the air interface. For example, the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-A), or It may also include the fifth generation mobile communication technology (fifth generation, 5G) new radio (NR) system, the next generation node B (next generation node B, gNB), which is not limited in the embodiments of the present application. In the LTE system, the core network equipment is, for example, a mobility management entity (MME); in the NR system, the core network equipment is, for example, an access and mobility management function entity (access and mobility management function, AMF) ). In a network structure, the network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or include a CU node and a DU node. The embodiments of the present application are not limited.

3. DRX. Under the DRX mechanism, the terminal device will stop monitoring the PDCCH during the sleep time. There are two types of DRX: idle DRX (IDLE-mode DRX) and connected DRX (Connected-mode DRX, C-DRX). Among them, IDLE DRX is also called DRX in idle state, and C-DRX is also called in connected state. DRX.

IDLE-mode DRX, that is, the discontinuous reception of the terminal device in the idle state, because the terminal device is idle, there is no radio resource control (radio resource control (RRC) connection and terminal device proprietary resources, so in IDLE -Mode DRX terminal equipment mainly monitors paging messages, as long as the paging message cycle is defined, you can achieve the purpose of discontinuous reception. When the terminal device listens to user data, it needs to leave the idle state, for example, enter the connected state from the idle state first.

C-DRX, that is, DRX where the terminal device is in the RRC connected state, under C-DRX, the terminal device periodically blindly detects the PDCCH, and if the PDCCH cannot be detected within a certain period of time, the terminal device will go to sleep , Stop the PDCCH detection in the sleep state, so as to save the energy consumption of the terminal device to detect the PDCCH, and achieve the purpose of saving power. Among them, the state when the terminal device detects the PDCCH may be referred to as awake state or on duration or active mode or wake mode, and the sleep state may be referred to as off mode or sleep mode. For simple understanding, the terminal device may detect the PDCCH in the wake state. Stop detecting PDCCH in sleep state.

In the following introduction, the technical solutions in the embodiments of the present application are introduced in the C-DRX mode.

4. Downlink control channel, for example, physical downlink control channel (physical downlink control channel, PDCCH), or enhanced physical downlink control channel (enhanced physical downlink control channel, EPDCCH), narrowband physical downlink control channel (narrowband physical downlink control channel) , NPDCCH), or may be other downlink control channels.

5. Time unit is a unit of time. For example, it includes a slot or a subframe or a mini-slot or an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol or one millisecond (ms) or fractional millisecond ( For example, the time unit of 1 / 32ms) may include multiple time slots or multiple subframes or multiple mini-slots or multiple OFDM symbols or several milliseconds (ms) or several fractional milliseconds.

6. The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "Multiple" refers to two or more. In view of this, in the embodiments of the present application, "multiple" may also be understood as "at least two". "At least one" can be understood as one or more, such as one, two or more. For example, including at least one means including one, two or more, and does not limit which ones are included, for example, including at least one of A, B, and C, then the included may be A, B, C, A and B, A and C, B and C, or A and B and C. "At least two" can be understood as two or more. In the same way, the understanding of the description of "at least one" is similar. "And / or" describes the association relationship of the related objects, indicating that there can be three relationships, for example, A and / or B, which can indicate: there are three situations where A exists alone, A and B exist simultaneously, or B exists alone. In addition, the character "/", unless otherwise specified, generally indicates that the related object is a "or" relationship.

And, unless stated to the contrary, the embodiments of the present application refer to ordinal numbers such as "first" and "second" to distinguish between multiple objects, and are not used to limit the order, timing, priority, or Importance.

In order to better understand the technical solutions provided by the embodiments of the present application, the technical background of the embodiments of the present application is first introduced below.

As mentioned above, the DRX mechanism can be used to reduce the power consumption of the terminal device to achieve the purpose of saving power and extending the endurance of the device. In the DRX mechanism, the terminal device will continuously detect the PDCCH for a period of time after waking up. The continuous detection process still has large power consumption. For ease of understanding, the following describes the prior art in conjunction with the schematic diagram of the C-DRX mechanism shown in FIG. 1.

Please refer to FIG. 1, DRX has a DRX cycle, and includes two states of awake state and sleep state in a DRX cycle, each state is configured with a corresponding duration. In FIG. 1, the wake state is indicated by active, and the sleep state is Expressed as off, the total duration of active includes the duration of onduration and the duration of inactivity timer. In the active state, the terminal device will continue to detect the PDCCH. If the PDCCH has not been detected at the end of the duration configured on the duration, it will enter the off state. In the off state, the terminal device will stop the detection of the PDCCH to reduce power consumption. If the PDCCH is detected within the duration configured on the duration, it indicates that there is data to be transmitted. In this case, in order to ensure the timely transmission of data, the inactivity timer will be started for timing. During the timing of the inactivity timer, the terminal device continues to maintain the active state, which can avoid entering the off state prematurely and affecting the timely transmission of data. This is equivalent to extending the duration of the active state through the timing of the inactivity timer. It can ensure the completeness and timely transmission of data when there is data to be transmitted. It is conceivable that if it is determined that data transmission is required at the end of onduration, if there is no inactivity timer mechanism to extend the active state, the remaining active state will continue. The time may not be enough to complete the transmission of the data that needs to be transmitted and enters the off-state power-saving mode, so you need to wait until the next DRX cycle to continue to transmit the data. Obviously this will affect the timeliness of the data transmission, resulting in Delay.

Among them, inactivity timer can also be expressed as drx-inactivity timer, for example, it can be called inactivity timer or inactivity timer or inactivity timer or other names. Inactivity timer means that after the terminal device detects the PDCCH indicating data transmission, it also The duration of the PDCCH detection needs to be continued. The duration can be expressed in time units, for example, ms or PDCCH subframes or other time units. For example, when the duration is 80 ms, then when the inactivity timer reaches 80 ms, it indicates that the timing is over.

In addition, the corresponding timer is also configured during on duration, that is, on duration, on duration can be expressed as drx-on duration, for example, it can be called on duration timer or duration timer or other names, on duration Timer indicates the duration of the terminal device in the wake-up state after entering the DRX cycle. Similarly, the duration can also be expressed in ms or PDCCH subframes or other time units. In a possible implementation, it is configured for on-duration timer and inactivity timer. The time units representing the duration of the timer can be the same, for example, all use ms time units.

As mentioned in the previous introduction to inactivity timers, it can be seen that in some cases, due to the existence of inactivity timers, the duration of the active state can be extended. Taking FIG. 1 as an example, by comparing the first DRX cycle with the second DRX cycle, The duration of the active state in the first DRX cycle is equal to the duration of the onduration, which means that the PDCCH was not detected during the onduration in the first DRX cycle, and the active state in the second DRX cycle The duration is longer than the duration of the active state in the first DRX cycle. For convenience of description, for example, the duration of the onduration can be called the duration of the onduration, and the duration of the active state can be called the duration of the active. The on duration in the first DRX cycle is initially configured, which can be expressed by the timing of the on timer, for example, the on duration is 10ms. In the second DRX cycle, when the on duration timer expires, for example The PDCCH indicating data transmission is detected at the 8th ms of the timing, which indicates that the data needs to be transmitted. In order to ensure the timely transmission of the data, the inactivity timer is started at this time. It is assumed that the inactivity timer is 80ms, so the 8ms from onduration It will continue to continue to detect PDCCH within 80ms. If it does not detect PDCCH within 80ms, it will enter the off state. It can be seen that due to the participation of inactivity timer, the original active duration of only 8ms (that is, onduration duration) was originally Increased to 88ms, which prolongs the active duration. In this way, it can ensure the timely transmission of data to minimize the service delay. However, due to the delay in entering the off state, it is equivalent to shortening the duration of the off state. At the same time, it also increases the power consumption of the terminal device.

Moreover, after the PDCCH startup inactivity timer is detected for the first time during onduration, if the PDCCH terminal device is detected again, the inactivity timer will be restarted to perform a new round of inactivity timer timing, continuing the foregoing example, after each PDCCH is detected, The inactivity timer starts from 0. If the inactivity timer has not been counted before, start the inactivity timer to start timing from 0. If the inactivity timer has been timed before, restart the inactivity timer and then start timing from 0. The restart refers to clearing the value that has been timed before. Every time a PDCCH is detected, it starts counting from 0, and it can only enter the off state after the restarted inactivity timer expires. If there are many PDCCHs, it may pass. The long prolonged active duration makes the duration of the off state too short, which makes it difficult to ensure the purpose of reducing power consumption, and the inactivity timer value of inactivity timer is semi-statically configured through radio resource control (radio resource control (RRC) signaling) , But according to the existing configuration, once inactivity is started The timer must wait until its timer expires before it can enter the off state. If the configured value is too large, it will prolong the duration of the active state too much, and the power consumption is too large. If the configured value is too small, it may be It is difficult to satisfy the effective and timely transmission of data, which affects the flexibility of data scheduling, so the inactivity timer mechanism in the prior art is difficult to balance between scheduling flexibility and power consumption of terminal devices.

Among them, for the case where the inactivity timer value is configured too large, it can currently be terminated by a media access control unit (medium access control control element (MAC)) while the inactivity timer is still timing, but the network device (such as a base station) decides to send There may be a dozen solt delays between MAC and CE receiving and taking effect from the terminal equipment (for some cases, for example, 10 ms). For the realization of the base station, due to the lack of perception and prediction of the service data of the network equipment, in order to When the service data arrives, it can be processed in time. Under normal circumstances, the base station will not use the MAC CE method to terminate the timing of the inactivity timer in advance.

In summary, in the prior art, the inactivity timer mechanism for semi-statically configured inactivity timer values lacks the balance between scheduling flexibility and power consumption of terminal devices, and it is difficult to adapt to the requirements of data transmission. Therefore, the process of PDCCH detection There is a technical problem that the power consumption of the device is large.

In view of this, an embodiment of the present application provides an information transmission method. In the technical solution of the embodiment of the present application, the network device sends first downlink control information (DCI) for instructing data transmission to the terminal device At this time, the second indication information indicating the operation mode of the inactivity timer can be carried in the first DCI, and through the explicit indication of the operation mode of the inactivity timer by the second indication information, after the terminal device receives the first DCI , That is, the operation mode of the inactivity timer can be clarified, such as starting the timer or stopping the timer or resetting the timer or keeping the current timer value to continue the timer or other operation methods, instead of simply receiving DCI for indicating data scheduling as in the prior art It will restart the inactivity timer and start timing again from the beginning. By explicitly indicating the operation mode of the inactivity timer in the DCI used to indicate data transmission, the DCI in the prior art that indicates data transmission must be decoupled to restart the inactivity timer correspondingly. The implicit indication function when restarting the timing, for example can In the prior art, when a new data indicator (new data indicator (NDI)) is used to indicate new data, the inactivity indicator function must be started or reset to indicate the inactivity timer. In other words, the embodiment of the present application can use the second The explicit indication of the instruction information on the operation mode of the inactivity timer can override the NDI implicit indication to start or not start the function of the inactivity timer, and the different operation modes of the inactivity timer can increase the flexibility of scheduling. For example, network devices can It also needs to indicate the operation mode to keep the current timing value and continue timing when the amount of data transmitted decreases, or to indicate the operation mode to stop timing when there is no data amount to continue to transmit, etc., so as to maximize the flexibility of scheduling and terminal equipment Balance the power consumption between them, and on the premise of ensuring the timely and effective transmission of data, the power consumption of the terminal device can be reduced as much as possible.

The technical solution provided by the embodiments of the present application may be applied to a 5G system, or to an LTE system, or may also be applied to a next-generation mobile communication system or other similar communication systems, without specific limitations.

The technical background of the embodiments of the present application is described above, and the application scenarios of the embodiments of the present application will be described below.

FIG. 2 shows a schematic diagram of a possible application scenario of an embodiment of the present application. The application scenario includes a network device and a terminal device. The functions of the network device and the terminal device have been described in the foregoing. Repeat again. The terminal device and the network device are wirelessly connected, and data transmission can be performed between the terminal device and the network device. For example, data sent from the network device to the terminal device is called downlink transmission, and data sent from the terminal device to the network device is called uplink transmission. The application scenario shown in FIG. 2 may be an application scenario in the NR system, or may be an application scenario in the LTE system, etc. For example, the application scenario shown in FIG. 2 is an application scenario in the NR system, then the network device may be It is gNB in the NR system, and the terminal device in it can be the terminal device in the NR system.

It should be noted that the scenario shown in FIG. 2 should not limit the application scenario of the embodiment of the present application. In actual applications, it may include multiple network devices and multiple terminal devices. For example, a terminal device can perform data transmission with only one network device, or can perform data transmission with multiple network devices, or a network device can perform data transmission with a terminal device, or can perform data transmission with multiple terminal devices. That is to say, the numbers of terminal devices and network devices in FIG. 2 are only examples. In practical applications, one network device can provide services for multiple terminal devices, which is not specifically limited in this embodiment of the present application.

The technical solutions provided by the embodiments of the present application will be described below with reference to the drawings.

Please refer to FIG. 3, which is a flowchart of the information transmission method provided by the embodiment of the present application. In the following introduction process, the method is applied to the scenario shown in FIG. 2 as an example. The flow of this method is described as follows.

S31. The network device sends DRX configuration information to the terminal device, and the terminal device may receive the DRX configuration information sent by the network device.

During the radio resource configuration process, the network device may send a DRX configuration message to the terminal device. The DRX configuration information may include initial values of various timers configured in the DRX mode for the terminal device, and the timers in the DRX mode may include drx-on duration, drx-inactivity timer, drx-HARQRTT timerDL, drx -At least one of HARQ RTT timerUL, drx-retransmission timerDL, drx-retransmission timerUL, drx-long cycle timer, drx-short cycle timer, of course, the DRX configuration message may also include other content, which is not one by one Enumeration.

The drx-on duration and drx-inactivity timer have been introduced in the foregoing, and will not be repeated here. For other timers, since the embodiments of this application are not mainly involved, they are only briefly introduced here. Among them, drx-long cycle and drx-short cycle timer refer to the life cycle of DRX long cycle and DRX short cycle of DRX mechanism, respectively. drx-HARQRTT timerUL can be called the uplink hybrid automatic retransmission request round-trip time timer. The timing of drx-HARQRTT timerUL indicates the length of time to wait before uplink retransmission scheduling. drx-HARQRTT timerDL can be called a downlink hybrid automatic repeat request round-trip time timer. The timing of drx-HARQRTT timerDL indicates the length of time to wait before downlink retransmission scheduling. The drx-retransmission timer UL may be called an uplink retransmission timer. The timing duration of the drx-retransmission timer UL indicates the length of time the network device detects the downlink control channel before the uplink data retransmission is received. The rx-retransmission timerDL may be called a downlink retransmission timer, and the timing duration of the drx-retransmission timerDL indicates the length of time the terminal device detects the downlink control channel before the downlink data retransmission is received. Please refer to Fig. 4a, which shows the relationship between drx-HARQRTT timerDL and drx-retransmission timerDL, it can be seen that drx-HARQRTT timerDL starts timing after the last symbol of HARQ-ACK is sent from the terminal device, After the timing is over, if the terminal device sends a negative response NACK, drx-retransmission timerDL starts timing. Wherein, the drx-HARQ RTT timerDL, the drx-retransmission timerDL, the NACK, and the physical downlink shared channel (PDSCH) of the scheduled retransmission in the figure all correspond to the same downlink HARQ process.

S32. The terminal device starts the DRX mode according to the received DRX configuration information.

After the terminal device receives the DRX configuration message sent by the network device, it can start the DRX mode, and then periodically wake up and go to sleep according to the configured DRX cycle to save energy consumption. Specifically, if the terminal device determines that the network device is configured with the DRX long cycle and DRX short cycle for the terminal device through the DRX configuration information sent by the network device, or the network device is configured with the DRX long cycle only for the terminal device, the terminal device can enter In the DRX long cycle; if the terminal device determines that the network device is configured with only the DRX short cycle for the terminal device, the terminal device can enter the DRX short cycle, without limitation. When the terminal device enters the long DRX cycle or the short DRX cycle, it enters the sleep state or wake-up state according to the DRX configuration, detects the PDCCH in the wake-up state to ensure the correct transmission of data, and stops the detection of the PDCCH in the sleep state to reduce power consumption and save power.

S33. The network device determines the first DCI. The first DCI carries first indication information and second indication information. The first indication information is used to indicate data transmission, and the second indication information is used to indicate the operation mode of the inactivity timer of DRX. .

It should be noted that the first DCI in the embodiment of the present application may be a general term of a type of DCI, and is not limited to a certain DCI. The first type of DCI may carry the first indication information and the second indication information. . That is, all DCIs having the same characteristics as the first DCI can be understood as the first DCI in the embodiments of the present application, and the same characteristics mentioned here can be understood as carrying the first indication information and the second indication information.

The first indication information in the embodiment of the present application is used to indicate data transmission. The data transmission here includes uplink data transmission or downlink data transmission, and may also include newly transmitted data or retransmitted data, where the newly transmitted data may also be It is called initial transmission data, that is, the first indication information is used to indicate that the data transmission may be a new transmission or retransmission indicating uplink data, or may be a new transmission or retransmission indicating downlink data. For example, the first indication information is carried through the NDI field in the first DCI. When the value of the NDI in the first DCI is different from the NDI in the previous DCI of the first DCI, that is, it indicates when the NDI rolls over The newly transmitted data indicates retransmission of data if the NDI does not flip. In other words, the first DCI is a DCI used to indicate newly transmitted data or retransmitted data, and the first DCI is used to schedule new transmitted data or retransmitted data. In some other ways of understanding, for example, the "first indication information is used to indicate data transmission" can also be understood as the first indication information used to indicate the transmission resource required to transmit the data, or can also be understood as the first indication The information is used to indicate that data transmission is performed on the scheduled transmission resources, that is, the network device may indicate that data transmission is required through the first indication information in the first DCI, and indicates that the data that needs to be transmitted is transmitted during data transmission Available data transmission resources. It can be seen that the first indication information may indicate that the first DCI is a DCI used to indicate data transmission.

In the embodiment of the present application, the format of the first DCI may be, for example, format 0_0 (format 0_0), format 0_1 (format 0_1), format 1_0 (format 1_0), format 1_1 (format 1_1), or other possible formats of DCI, that is, The format of the first DCI may be any one of format 0_0, format 0_1, format 1_0, and format 1_1. When the format of the first DCI is format 0_0 or format 1_0 or format 1_1, the cyclic redundancy check (CRC) bits of the first DCI are temporarily identified by the cell radio network (cell radio network temporary identifier, C-RNTI) ) Or configure a scheduled wireless network temporary identifier (configured scheduling RNTI, CS-RNTI) scrambling. When the format of the first DCI is format 0_1, the CRC bits of the first DCI are identified by C-RNTI or CS-RNTI or semi-persistent channel state information wireless network temporary identification (semi-persistent channel state information RNTI, SP-CSI-RNTI) Scrambling. Since the DCI in the above format is used to indicate the uplink or downlink data scheduling, it is suitable for simultaneously indicating through the second information whether the uplink or downlink data scheduling is turned on or restarted inactivity timer; The second indication information is sent by scrambling the DCI format corresponding to the RNTI, because these corresponding RNTIs are controlled by the DRX PDCCH detection regulations, while the scrambled DCI formats of other RNTIs are not subject to the DRX PDCCH detection regulations. Restrictions, there is no need to introduce additional field overhead. By configuring the scrambling methods listed above, the DCI overhead can be reduced as much as possible.

The second indication information in the embodiment of the present application is used to indicate the operation mode of the inactivity timer of DRX, where the inactivity timer of DRX refers to the drx-inactivity timer described above. For convenience of description, the following will be directly expressed as inactivity timer DRX's inactivity timer and drx-inactivity timer are introduced.

The operation mode of inactivity timer can be understood as the timing operation mode of inactivity timer, or can be understood as the working mode of inactivity timer, or can be understood as the timing mode of inactivity timer, etc., regardless of the way of understanding, the difference of inactivity timer The operation mode can correspond to different timing operations of the timer. For ease of understanding, the operation mode of the inactivity timer will be described below in conjunction with FIG. 4.

Please refer to the schematic diagram of the timing progress bar of inactivity timer shown in FIG. 4. The total length of the blank rectangular frame represents the total value of the timing of the inactivity timer. It is assumed that the timing starts from the left side of the blank rectangular frame (that is, the position indicated by 0). The timing value at which the timing starts is called the timing start value, and the total length of the black rectangular frame indicates the timed value.

Among them, the total timing value of inactivity timer is also called inactivity timer value or inactivity timer duration or inactivity timer duration or inactivity timer value. The total inactivity timer value represents the maximum timing value of inactivity timer. The value indicates that the inactivity timer has expired. The timed value of inactivity timer means the value that has been timed. Generally speaking, the timed value of inactivity timer is less than or equal to the total time value of inactivity timer. During the timing of the inactivity timer, the timing progress bar will dynamically change. For example, it gradually increases from the direction of the timing start value to the direction of the total timing value as shown in FIG. 4. Correspondingly, the timed value As the timing progress bar increases, it gradually increases, that is, the timing value can be characterized by the change of the timing progress bar. As shown in FIG. 4, suppose that the total value of inactivity timer is 80ms, that is, inactivity timer is full after the timer is over 80, and the current time value of inactivity timer is 38ms, or another example is shown in FIG. 5, inactivity The total timer value is still 80ms, but the current value is 0, indicating that the inactivity timer is not currently timing, or is about to start timing.

In the embodiment of the present application, the inactivity timer may include four operation modes: start, stop, reset timing, and continue timing. In other words, the operation mode of the inactivity timer may include start timing, reset timing, continue timing, and stop. Any of the timings. The following is a detailed description of several operation modes of inactivity timer.

For the operation method of starting the timer, it means that the inactivity timer is started to start the timing. Before the start operation is performed, the inactivity timer is not in the timing state. For example, when the inactivity timer has not been started, the operation method can be started by turning on the timer. The inactivity timer triggers the inactivity timer to perform timing. Taking FIG. 5 as an example, since the inactivity timer in FIG. 5 has not yet started timing, the inactivity timer can start timing from the timing start value after performing the operation of starting timing at this time. , Starting from 0. By enabling the timing operation mode, you can start the inactivity timer in time to facilitate the timing of the active state of the terminal device as much as possible to ensure the complete transmission of data. For example, it is possible to indicate the start of the inactivity timer through the DCI for instructing data transmission at the time close to the end time of onduration, which can prolong the duration of the active state, so that the terminal device can be in the prolonged active state Complete data transmission in time to reduce data delay.

For the operation method of stopping timing, it means that the inactivity timer that is timing is stopped. After the timer is stopped, the inactivity timer is no longer timing. For example, as shown in Figure 4, the inactivity timer is currently timing and the current counted value is the 38th ms. If the timing is stopped at this moment, it can be understood as terminating the timing of the inactivity timer. After the timing is terminated, the inactivity timer directly indicates that the timer has been timed When it is full, continue to take Figure 4 as an example. If the operation is stopped when the current timed value is 38ms, after the time is stopped, the timed value of the inactivity timer can be considered to be adjusted directly from 38ms to 80ms, which is already The timer counts up. When the timer counts up, naturally the inactivity timer will not count again, that is, the timing of the inactivity timer ends, so that the sleep mode can be entered as soon as possible. Or another way of understanding, after stopping the timing, the inactivity timer keeps the current counted value and no longer counts until it receives other instructions. The network device can advance the time when the terminal device enters the off state by indicating the stop operation mode when there is no data to transmit or only a very small amount of data to transmit, so as to reduce device power consumption and save power as much as possible.

For the operation method of resetting the timing, it means to clear the current counted value and restart the timing from the starting value of the timing. Continue to take Figure 4 as an example. If the current timing value is 38ms, the reset timing is reset. To operate, you need to clear the timed value of 38ms first. After the time is cleared, the timed value of inactivity timer is reset to the starting value of time, that is, 0, and then start timing again from 0. Re-timing after resetting is equivalent to prolonging the duration of the active state to a certain extent. For example, when there is more data to be transmitted by the network device, in order to ensure that the data can be transmitted as much as possible in the current DRX cycle , You can delay the start time of the off state as much as possible by resetting the timing to ensure the complete and timely transmission of data.

For the operation mode of continuous timing, it means to continue timing based on the current timed value. Continue to take FIG. 4 as an example. If the continuous timing operation is performed when the current timed value is 38ms, then the continuous timing is performed. After the operation, the inactivity timer can continue to time, so the next timed value is 39ms.

That is to say, the network device can reasonably and dynamically control the operation mode of the inactivity timer in the terminal device according to the current actual amount of data to be transmitted, so that the flexibility between data scheduling and the power consumption of the terminal device can be appropriately adjusted The balance to adaptive data transmission characteristics.

比特，然后考虑终端设备剩余的active time内可调度的数据量大小为：

剩余的active time，可调度的数据量大小可以表征剩下的时间还能传输的数据的能力。网络设备考虑将上述估计的剩余active time内可调度的数据量大小，与缓存中的数据量大小相比较，其中，对于下行，缓存内的数据量大小是网络设备已知的，而对于上行，缓存内的数据量大小可以由终端设备已经通过缓存状态报告(buffer status report，BSR)的媒介接入控制(medium access control，MAC)层的控制单元(control element,CE)上报给网络设备了。 A possible implementation manner is that the network device may estimate an average packet size of a schedulable transmission per time unit for uplink or downlink transmission of the terminal device, for example:

Bits, and then consider the amount of data that can be scheduled within the remaining active time of the terminal device is:

For the remaining active time, the size of the data that can be scheduled can characterize the ability of the data that can be transmitted in the remaining time. The network device considers comparing the size of the data schedulable in the remaining active time estimated above with the size of the data in the cache, where, for the downlink, the size of the data in the cache is known to the network device, while for the uplink, The amount of data in the cache can be reported to the network device by the terminal device through a medium access control (MAC) control element (control element, CE) of the buffer status report (BSR).

剩余的active time≥缓存中的数据量，则可以在第一DCI指示调度新传数据时，通过第一DCI再显性指示终端设备的inactivity timer的操作方式为继续计时，或者，指示终端设备启动一个小于剩余active time的计时总值。 in case

The remaining active time ≥ the amount of data in the cache, when the first DCI indicates to schedule new transmission data, the first DCI can be used to explicitly indicate the operation mode of the inactivity timer of the terminal device to continue timing, or to instruct the terminal device to start A total time value less than the remaining active time.

剩余的active time<缓存中的数据量，则可以在第一DCI指示调度新传数据时，通过第一DCI再显性指示终端设备的inactivity timer的操作方式为开启计时或重置计时。 in case

The remaining active time <the amount of data in the buffer, when the first DCI indicates scheduling of new transmission data, the operation mode of the inactivity timer of the terminal device through the first DCI re-explicit is to start timing or reset timing.

剩余的active time与(缓存中的数据量+预测的新数据到达量)进行比较，以终端 设备的inactivity timer的操作方式，或者指示多大的计时总值。 In addition, the network device can also predict the amount of new data in the downstream buffer or upstream buffer in a period of time in the future.

The remaining active time is compared with (the amount of data in the buffer + the predicted amount of new data arrival) in terms of the operation mode of the inactivity timer of the terminal device, or indicating the total value of the timing.

In other words, the network device can dynamically indicate the operation mode of the inactivity timer of the terminal device and other parameters related to the inactivity timer (such as the total time value and the timed value) according to factors such as the current network congestion and load conditions, Therefore, it is possible to balance the scheduling flexibility and the power consumption between the terminal devices as much as possible, and on the premise of ensuring timely and effective data transmission, the power consumption of the terminal device can be reduced as much as possible.

The four operation modes described in the above examples include the three operation modes of opening timer, resetting timer and continuing timer. After the corresponding operation, the inactivity timer will continue to count until the timer expires, and after the operation to stop the timer , The inactivity timer will end timing, that is, no longer count, from this point of view, the operation mode of inactivity timer can be roughly divided into trigger end timing and trigger timing. It can be understood that the four operation modes exemplified above are only schematic illustrations of the operation modes of the inactivity timer. In the specific implementation process, based on the guidance of the above two types of operation modes of trigger end timing and trigger timing, Other methods of operation can be proposed, which will not be described here one by one.

In addition, in the specific implementation process, the first indication information and the second indication information may be indicated by different fields in the first DCI, for example, the first indication information is indicated by the NDI field in the first DCI, and the second indication information may be indicated by Other field indications different from NDI. The other fields here are, for example, the fields composed of the joint indication of the available bits in any other field or other fields in the existing DCI format, or other fields. It may also be a newly added field based on the existing DCI format, and so on. The embodiments of the present application do not limit the fields carrying the first indication information and the second indication information.

Among them, the other field is an implementation method of a field newly added based on the existing DCI format, for example, 1 bit may be added, and when the value of the newly added 1 bit is 1, for example, it may indicate to start timing or Continuing the timing, when the value of the newly added 1 bit is 0, for example, it may instruct to reset the timing. For the case where the value is 1, if the value of the newly added 1 bit in the first DCI is 1, the terminal device can determine the corresponding timing mode according to the current inactivity timer status, for example, if the current inactivity timer is not Timing (for example, not yet started) can perform the operation of starting the timing, and if the current inactivity timer is timing, the operation of continuing the timing can be performed.

For other fields, a new field is added based on the existing DCI format, for example, 2 bits can be added, and the different values of the added 2 bits can be used to indicate an operation mode, for example, to 00 indicates stop timing, 01 indicates to start timing or reset timing and the duration is the first duration, 10 indicates to start timing or reset timing and the timing duration is the second duration, 11 indicates to continue timing, or other Different values indicate different operation modes, and no other examples are given here.

In another embodiment, the operation mode of inactivity timer can be jointly indicated by the newly added 1 bit and 1 bit in other existing fields, and the way of joint indication is to use the newly added 1 bit and The four different values of 00, 01, 10, and 11 combined by the existing 1 bit respectively indicate an operation mode. There is no restriction on which field the 1 bit of the selected existing field belongs to, and it is ensured that the selected existing 1 bit does not affect the indication of the information originally indicated by the field where the existing 1 bit is located.

In the embodiment of the present application, in the first DCI, the operation mode of the inactivity timer can be indicated according to whether the field used to carry the second indication information is flipped, and the flipped here refers to the value of the field and the first Whether the value of this field in the previous DCI of the DCI has changed compared to, for example, whether it has changed from 0 to 1 or whether it has changed from 1 to 0. For example, a new field is added on the basis of the existing DCI format, and the operation mode of the inactivity timer is indicated by whether the value of the newly added field is the same as the value of the previous DCI of the first DCI.

In a possible implementation manner, if the value of the newly added field is the same as the value of the previous DCI of the first DCI, the operation mode of the inactivity timer indicated by the second indication information may be to continue timing, if both If the value is different, the operation mode of the indicated inactivity timer can be to start the timer or reset the timer.

In another possible implementation manner, if the value of the newly added field is the same as the value of the previous DCI of the first DCI, the operation mode of the inactivity timer indicated by the second indication information may be to start the timer or reset the timer If the values of the two are different, the operation mode of the indicated inactivity timer can be continued timing.

As above, different operation modes can be indicated by the inversion of the newly added field. The above instructions illustrate some of the instructions. In the specific implementation process, other operation modes that are different from the above examples can also be indicated during inversion, and in the case of non-inversion It can also indicate other operation modes different from the above example.

Further, for the above-mentioned scheme for indicating the operation mode of the inactivity timer by indicating whether the field carrying the second indication information is inverted, an inversion interval may be set, and the inversion interval referred to here refers to the information used to carry the second indication information. The number of intervals between the values of the field and the number of DCIs that have been flipped, can also refer to the number of repeated transmissions of the same value of this field in consecutively transmitted read DCIs, for example, for continuous transmission and including the first DCI DCIs, according to the order of transmission time, the values of the fields used to carry the second indication information in the multiple DCIs are 111000111000 in sequence, where each value represents the first DCI used to carry the second indication The value of the information field can be seen that it is flipped every 3 DCI intervals, so it can be considered that the flip interval is 3, or another way of understanding, because it is flipped once every 3 DCIs, it can be considered continuous The number of repeated transmissions is 3, and different expressions can be used in the specific implementation process, which is not limited in the embodiments of the present application.

In the embodiment of the present application, the rollover interval may be set to be greater than or equal to 2, for example, may be set to 2 or 3 or 4 or other values, that is, numbers. For multiple DCIs that are continuously transmitted and include the first DCI, and The number of consecutive repeated transmissions with the same value of the field for carrying the second indication information in the first DCI needs to be greater than or equal to a predetermined threshold, and the predetermined threshold refers to the set flip interval. By setting the inversion interval at a predetermined threshold, it can be prevented that the terminal device still does not make an error in determining whether the second information is inversion when the PDCCH miss detection causes the first DCI to be missed. For example, the value of the field used to carry the second indication information is 111000111000 in sequence, and a middle 0 is missed due to PDCCH miss detection, which causes the value received by the terminal device to be 11100111000 in sequence, but this situation does not affect the terminal The device judges whether the second information is reversed, so it will not affect the start timing or reset timing of the inactivity timer.

As described above, the first indication information can be carried through the NDI field in the first DCI, so the first DCI can be used to schedule new transmission data or retransmission data. When the first DCI is used to schedule new data transmission, that is, the value of the NDI field in the first DCI is different from the value of the previous DCI of the first DCI, the inactivity timer indicated by the second indication information at this time The operation mode can be to continue timing or stop timing or start timing. When the first DCI is used to schedule retransmission data, that is, when the value of the NDI field in the first DCI is the same as the value of the previous DCI of the first DCI, the second indication information at this time indicates The operation mode of inactivity timer can be to reset the timer or stop the timer or start the timer. That is to say, when the newly transmitted data or the retransmitted data is indicated by the NDI field in the first DCI, the corresponding second indication information can explicitly indicate the specific operation mode of the inactivity timer as described above, compared to the existing Indicative inactivity timer starts timing or resets the timing mode, which can increase the flexibility of the timing operation instruction of inactivity timer, in order to balance between scheduling flexibility and power consumption between terminal devices, to ensure timely data On the premise of effective transmission, the power consumption of the terminal device can be reduced as much as possible, the power of the terminal device is saved, and the endurance of the device of the terminal device is improved.

No matter what field the network device uses to carry the first indication information and the second indication information, the specific bearing method may be that the network device and the terminal device have already agreed in advance. In this case, when the terminal device receives the first After DCI, it can be interpreted correctly to achieve the same perception as network devices and ensure accurate information analysis.

Through the above description of the first indication information and the second indication information, it can be known that the first DCI is a DCI used to indicate data transmission, and also indicates the operation mode of the inactivity timer, that is, relative to the prior art The DCI in the embodiments of the present application can explicitly indicate the operation mode of the inactivity timer, instead of restarting the inactivity timer as soon as the DCI receives the DCI used to indicate data scheduling as in the prior art. The scheme of indicating the operation mode of the inactivity timer in the DCI indicating data transmission can decouple the DCI in the prior art that indicates data transmission must correspond to the implicit indication relationship of restarting the inactivity timer, and through the different operation modes of the inactivity timer It can improve the flexibility of scheduling. For example, the network device can indicate the operation mode to keep the current timing value and continue the timing when the amount of data that needs to be cached decreases, or it can indicate the operation mode to stop the timing when the amount of cached data is not continued, etc. Etc., so as to maximize the flexibility of scheduling and terminal equipment Balance between power consumption, while ensuring timely and effective data transmission premise may also be possible to reduce the power consumption of the terminal device.

S34. The network device sends the first DCI to the terminal device, and the terminal device may receive the first DCI sent by the network device.

In the specific implementation process, the network device can send the first DCI through the PDCCH, so for the terminal device, the first DCI can be received by detecting the PDCCH. As the terminal device detects the PDCCH, it can actually be understood To detect the DCI transmitted through the PDCCH, for example, the first DCI in the embodiment of the present application.

The network device can maintain the timing of the terminal device's inactivity timer, so it can know the real-time timing status of the terminal device's inactivity timer. In a possible implementation, the network device can send the terminal device the DRX active time to the terminal device. A DCI, where the DRX active time refers to the process in which the terminal device is in the active state, that is, the length of time corresponding to the active state, so that the terminal device can detect the first DCI without the terminal device not detecting the PDCCH. Resulting in missed inspections. In another possible implementation manner, the network device can also send the first DCI to the terminal device during the timing of drx-HARQRTT timerDL, in this way, the terminal device can more quickly detect the scheduling of rush transmission, reducing Retransmission delay.

S35. The terminal device determines the operation mode of the inactivity timer in DRX according to the instruction of the first DCI.

After receiving the first DCI sent by the network device, the terminal device may first determine that the received DCI is the DCI used to indicate data transmission according to the first indication information carried in the first DCI, and at the same time The second instruction information determines the operation mode of the inactivity timer indicated by the network device.

S36. The terminal device controls the inactivity timer to perform the corresponding timing operation according to the operation mode indicated by the first DCI.

After determining the operation mode of the inactivity timer indicated by the network device according to the first DCI, the operation mode of the inactivity timer can be adjusted according to the instruction of the network device, specifically, for example, the inactivity timer can be controlled according to the first DCI instruction The operation mode performs the corresponding timing operation. Since the operation mode indicated by the network device is used for timing operation, the timing mode of the inactivity timer can meet the expectations of the network device as much as possible, because the network device is dynamically and adaptively based on the actual amount of data cache that needs to be scheduled Instructions, so it can meet the requirements of timely data transmission and device power consumption as much as possible to achieve a dynamic balance between the two, and further reduce the power consumption of the terminal device as much as possible on the premise of meeting the timely data transmission requirements.

As mentioned above, the operation mode of inactivity timer can be roughly divided into two types: trigger end timing and trigger timing. The operation mode of trigger end timing is the operation of triggering the inactivity timer, and the operation of triggering the timing is to trigger the inactivity timer to start or continue. In the timing operation, after the inactivity timer executes the operation that triggers the timing, it can be in the timing state. Once the inactivity timer starts timing, the terminal device may enter the off state after the inactivity timer expires, while in the timing of the inactivity timer There is very little data that needs to be transmitted. For the terminal device, there is no need to continuously time the inactivity timer, because there is currently only less data to be transmitted, so there is no need to stay in the active state for a long time. In fact, it is hoped to enter the off state as soon as possible. However, when the network device indicates through the first DCI, although the second indication information indicates the operation mode of inactivity timer, after receiving the first DCI, the terminal device can The indication of the second indication information in a DCI clarifies the operation mode of the inactivity timer, and at the same time, the timing duration of the inactivity timer (that is, the aforementioned total timing value) can be clarified according to the DRX configuration information mentioned in S31, and then the operation according to the instructions Carry out the corresponding technical operation on the timing and duration of inactivity timer.

Based on the above mentioned timing operation mode, the timing inactivity timer operation mode has changed, but the timing is still based on the pre-fixed inactivity timer duration, which may not be consistent with the current actual timing requirements. For example, timing network equipment instructions To continue timing, but because there is less data to be transmitted, I hope to complete the timing as soon as possible after the data is transmitted, that is, when the timing expires, and continue the timing according to the fixed configuration of the inactivity timer duration, It may be a long time before the aggregation timer is full, so the aforementioned indication method is only a rough adjustment of the timing method of inactivity timer, and the accuracy of adjustment is not high. In view of this, in order to more accurately balance the data transmission volume and the power consumption of the device, on the basis of the first DCI explicit indication of the operation mode of the inactivity timer, the timing value of the inactivity timer can also be clarified at the same time Indication, for example, when the current data to be transmitted is small, the time value of the inactivity timer can be re-indicated in order to shorten the time to enter the off state, so that the terminal device can enter the off state as soon as possible to save power as much as possible.

Based on the above considerations, the embodiments of the present application provide two ways to adjust the timing value of the inactivity timer. For ease of understanding, the following describes the two ways separately.

The first way

On the basis of the first DCI described above, the first DCI may further carry third indication information, that is, the first DCI at this time also carries the first indication information, the second indication information, and the third indication information. The instruction information and the second instruction information have been described above. The third instruction information is used to indicate the total timing value of the inactivity timer, that is, the third instruction information indicates the inactivity timer value of the inactivity timer, that is, the third instruction information can be used. An explicit indication that the total timing value of inactivity timer needs to be adjusted, and at the same time indicates the total timing value that needs to be adjusted. Wherein, the total timing value indicated by the third indication information can be expressed by the number of time units mentioned above.

In the embodiment of the present application, the network device may configure one or more total timing values for the terminal device. If only one total timing value is configured, the inactivity timer may always use the total timing value for timing, that is, in the inactivity timer. The total timing value will not change during use. In the communication process between the network device and the terminal device, the network device can indicate the configured total timing value in the manner of implicit indication through the first DCI. The implicit indication method is, for example, an indirect explicit indication. For example, the first DCI only carries the first indication information and the second indication information. When the terminal device determines that the first DCI only carries the first indication information and the second indication information , That is, the total timing value of inactivity timer is specified, that is, the total timing value pre-configured by the network device. If multiple total timing values are configured, the network device may explicitly indicate it through the third indication information.

For example, as shown in FIG. 6A, before receiving the first DCI, the current timed value and total time value of the inactivity timer are 38ms and 80ms, respectively, and the operation mode of the inactivity timer indicated by the second indication information carried by the first DCI Is to continue timing, the total value of the explicit indication indicated by the third indication information carried by the first DCI is 60ms, then after receiving the first DCI, the terminal device will continue timing based on the current value of 38ms , That is, the next timing is 39ms, and the total value of the inactivity timer will be adjusted from 80ms to 60ms, as shown in Figure 6A. Figure 6A above shows the timing diagram of the inactivity timer before adjustment. 6A The figure below shows the timing diagram of the adjusted inactivity timer according to the instructions of the first DCI. After the adjustment, the total value of the time of inactivity time was reduced from 80ms to 60ms. After adjustment, the length of time to reach the off state was shortened, so that the terminal device can enter the off state as soon as possible, so as to reduce the power consumption of the device. In addition, according to the actual timing requirements, in some cases, the total value of the inactivity timer can be increased, that is, the total value of the inactivity timer indicated by the third indication information can be less than or greater than the current timing of the inactivity timer The total value, specifically, the adjustment is larger or smaller, the network device can make a decision according to the actual amount of data that needs to be transmitted, so that the flexibility of adjustment can be increased.

In a possible implementation manner, if the total timing value indicated by the third indication information is less than the current timed value of the inactivity timer, please refer to FIG. 6B. The total indication timing of the inactivity timer that needs to be adjusted indicated by the third indication information The value is 33ms, which is less than the current timed value of the inactivity timer of 38ms. In this case, the terminal device may consider the inactivity timer to be full. That is to say, during the process of indicating the total timing value of the inactivity timer, if there are some logical errors such as the indicated total timing value being less than the current timed value of the inactivity timer, the network device and the terminal device may agree in advance, Consider this logic error as the timer expires, so as not to affect the normal use of the inactivity timer as much as possible. After using this scheme, even if the logic indication error shown in Figure 6B occurs, the system can tolerate it. The terminal device can think that the inactivity timer has expired according to the pre-agreed, and then counted into the off state, which can improve the fault tolerance of the system and improve the reliability of the system.

Because under normal circumstances, the total value of the timing indicated by the third indication information should be understood to be an incorrect indication, because such an indication is not logical, but if it is understood If it is an indication of wrong logic, it may cause abnormal operation of inactivity timer, so in this solution, when the aforementioned indication of error logic occurs, it can be understood that the timing of inactivity timer is over, that is, the system can tolerate the aforementioned error logic Instruction, this can improve the fault tolerance of the system, and then can ensure the normal operation of the inactivity timer, thereby improving the reliability and stability of the system.

In another embodiment, the total timing value indicated by the third indication information may also be the same as the current total timing value of the inactivity timer. In this case, the terminal device may no longer need to count the total timing value of the inactivity timer. Make adjustments.

In a specific implementation process, the second indication information and the third indication information may be separately indicated through different fields in the first DCI; or, both the second indication information and the third indication information may be jointly indicated through different fields, and The fields for the joint indication of the second indication information and the third indication information may be the same or different, and the joint indication here may be understood as an indication by the value expressed by combining the bits in different fields; or, the first The second indication information and the third indication can also be indicated simultaneously by the value of the same field in the first DCI, in other words, the second indication information and the third indication information can be indicated simultaneously by one value of a field; or, the second The indication information and the third indication information may be separately indicated by different bits in the same field in the first DCI, and so on. In addition, the fields used to indicate the second indication information and the third indication information may be multiplexing existing fields in the existing DCI format, or may be newly added fields based on the existing DCI format , The embodiment of the present application does not limit.

The embodiments of the present application provide multiple ways of indicating the second indication information and the third indication information, which can increase the flexibility of the indication, facilitate the flexible use of the fields and bits in the first DCI according to the actual situation, and enhance the applicability of the solution.

The second way

On the basis of the first DCI described above, the first DCI may further carry fourth indication information, that is, the first DCI at this time also carries the first indication information, the second indication information, and the fourth indication information. The instruction information and the second instruction information have been introduced above. The fourth instruction information is used to indicate the timed value of the inactivity timer, that is, the fourth instruction information can be used to explicitly indicate that the timed value of the inactivity timer needs to be adjusted, and It also indicates the timed value that needs to be adjusted. Wherein, the timed value indicated by the fourth indication information can be represented by the number of time units as mentioned above.

In the embodiment of the present application, the network device may configure multiple timed values for the terminal device, and explicitly indicate that the timed value of the inactivity timer needs to be adjusted through the fourth indication information. The timed value indicated by the fourth indication information may be The number of time units as previously introduced, for example, 30ms, or the timed value indicated by the fourth indication information may also be a timed proportional value, which is used to indicate the proportion of the total time value of the inactivity timer, for example The timed proportional value is 60% or 1/3 or 0.7. After knowing the timed proportional value, the corresponding indicated timed value can be based on "indicated timed value = total time value of inactivity timer * timed proportional value" Is calculated by the calculation method of, in addition, since the timed value calculated according to the calculation method may not be an integer, the timed value of the integer may be obtained by rounding up or down at this time.

For example, as shown in FIG. 7A, before receiving the first DCI, the current timed value and total time value of the inactivity timer are 38ms and 80ms, respectively, and the operation mode of the inactivity timer indicated by the second indication information carried by the first DCI Is to continue timing, the timed value explicitly indicated by the fourth indication information carried by the first DCI is 68ms, then after receiving the first DCI, the terminal device will adjust the current timed value from 38ms to 68ms, and then Continue to count from 68ms, after adjustment, shorten the time to reach the off state, so that the terminal device can enter the off state as soon as possible, so as to reduce the power consumption of the device. In addition, according to the actual timing needs, in some cases, the timed value of the inactivity timer can also be reduced, that is to say, the total value of the inactivity timer indicated by the fourth indication information can be greater than or less than the current activity of the inactivity timer. The timing value, specifically, the adjustment is larger or smaller, the network device can make a decision according to the actual amount of data that needs to be transmitted currently, thereby increasing the flexibility of adjustment.

Referring to FIG. 7B, similar to the foregoing 6B, when the timed value of the inactivity timer indicated by the fourth indication information is 84ms greater than the total value of the inactivity timer value of 80ms, it indicates that the inactivity timer has expired. Under normal circumstances, it should be understood that the timed value indicated by the fourth indication information is greater than or equal to the total time value of inactivity timer as an erroneous indication, because such an indication is not logical, but if it is understood If it is an indication of error logic, it may cause abnormal operation of the inactivity timer, so in this solution, when the indication of the aforementioned error logic occurs, it can be understood that the timing of the inactivity timer is full, that is, the system can tolerate the aforementioned error logic Instruction, this can improve the fault tolerance of the system, and then can ensure the normal operation of the inactivity timer, thereby improving the reliability and stability of the system.

In another embodiment, the total timing value indicated by the fourth indication information may also be the same as the current timed value of the inactivity timer. In this case, the terminal device may no longer need to count the timed value of the inactivity timer. Make adjustments.

In a specific implementation process, the second indication information and the fourth indication information may be separately indicated by different fields in the first DCI; or, both the second indication information and the fourth indication information may be jointly indicated by different fields, and The fields for the joint indication of the second indication information and the fourth indication information may be the same or may be different. The joint indication here may be understood as an indication by a value expressed by combining bits in different fields; or, the first The second indication information and the fourth indication can also be indicated simultaneously by the value of the same field in the first DCI, in other words, the second indication information and the fourth indication information can be indicated simultaneously by one value of a field; or, the second The indication information and the fourth indication information may be separately indicated by different bits in the same field in the first DCI, and so on. In addition, the fields used to indicate the second indication information and the fourth indication information may be multiplexing some existing fields in the existing DCI format, or may be newly added fields based on the existing DCI format , The embodiment of the present application does not limit. The embodiments of the present application provide multiple ways of indicating the second indication information and the fourth indication information, which can increase the flexibility of the indication, so as to flexibly use the fields and bits in the first DCI according to the actual situation.

In another possible implementation manner, the first DCI may also carry the first indication information, the second indication information, the third indication information, and the fourth indication information at the same time, as shown in FIG. 8, before receiving the first DCI , The current timed value and total time value of inactivity timers are 38ms and 80ms respectively, and the operation mode of inactivity timer indicated by the second indication information carried by the first DCI is to continue timing, and the third indication information carried by the first DCI The total value of the timing of the explicit indication is 60 ms, and the time value of the explicit indication is 49 ms through the fourth indication information carried by the first DCI. Refer to the comparison of the timing of the inactivity timer before and after adjustment in FIG. 8. The four-instruction information shortens the time to reach the off state to a dual extent, so that the off state can be entered more quickly to reduce the power consumption of the terminal device as soon as possible. FIG. 8 is only an example of combining indication information of the first indication information, the second indication information, the third indication information, and the fourth indication information. In a specific implementation process, the network device may transmit as needed The amount of data is dynamically indicated differently, and will not be described here.

The first DCI in the embodiment of the present application may be transmitted in an associated search space. As described above, the first DCI may be any one of format 0_0, format 0_1, format 1_0, and format 1_1. These different formats DCIs are associated by corresponding search spaces, so DCIs of corresponding formats can be searched in these associated search spaces. At the same time, at least one piece of information carrying the foregoing second indication information, third indication information, or fourth indication information may be configured by a configuration message configuring the associated search space. Since the second indication information, the third indication information, and the fourth indication information are indication information used to characterize that the first DCI in this application is different from the existing DCI, which is equivalent to the existing DCI. In the embodiment, the second indication information, the third indication information, and the fourth indication information can be used to explicitly indicate some information related to the timing of the inactivity timer, and some new indication functions are added relative to the existing DCI, so in the interpretation In the first DCI, it needs to be interpreted according to a new interpretation method. In order to realize the unified perception between the terminal and the network, the network device can inform the terminal device through the RRC configuration message that the new interpretation method in the embodiments of the present application is required. To interpret the first DCI received subsequently, a simple understanding, the network device can inform the terminal device through the RRC configuration message that the first DCI is an operation mode (indicated by the second indication information) that can indicate inactivity timer, and can indicate The total time value of inactivity timer (indicated by the third instruction information), the timed value of inactivity timer that can be timed ( With the fourth indication information indicating at least one of the DCIs, in addition, the terminal device may realize unity of perception with the network device according to the RRC configuration message to ensure accurate information interaction between the terminal and the network.

In another embodiment, the terminal device may also be directly indicated whether the DCI has the aforementioned new indication function according to the type of search space. Specifically, if the search space associated with a DCI is a dedicated search space for user equipment ( UE-specific search space (USS), that is, if the DCI is transmitted in the USS, it indicates that the DCI has the aforementioned new indication function, that is, the DCI at this time carries the second indication information, the third indication information, and the third At least one of the four instructions. If the search space associated with a DCI is a common search space (CSS), that is, if the DCI is transmitted in the CSS, it indicates that the DCI does not have the aforementioned new indication function, then it may be the existing The DCI in the technology, that is, the DCI at this time does not carry any of the second indication information, the third indication information, or the fourth indication information. Since the first DCI in the embodiment of the present application is the DCI having the aforementioned new function, based on the technical solution, the first DCI is transmitted in the USS, but not in the CSS. The manner of indicating whether the transmitted DCI has the aforementioned new function by the type of search space can save the signaling overhead of the DCI transmitted in the CSS-type search space that does not require the aforementioned new function.

Based on the same inventive concept, as shown in FIG. 9, an embodiment of the present application provides a communication device 900. The communication device 900 may be a terminal device, which can implement the function of the terminal device in the information transmission method provided by the embodiment of the present application; communication The device 900 may also be a device that can support the terminal device to realize the function of the terminal device in the information transmission method provided by the embodiments of the present application. The communication device 900 may be a hardware structure, a software module, or a hardware structure plus a software module. The communication device 900 may be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices. As shown in FIG. 9, the communication device 900 may include a processing module 901, a receiving module 902, and a sending module 903, where the sending module 903 may not be a necessary module, so it is indicated by a dotted line in FIG. 9 that the receiving module 902 and the sending module 903 The communication device 900 is used for communication with other modules, and it may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.

The processing module 901 may be used to execute S32, S35, and S36 in the embodiment shown in FIG. 3, and / or other processes used to support the technology described herein. The receiving module 902 may be used to perform S34 in the embodiment shown in FIG. 3, and / or other processes for supporting the technology described herein. In a specific implementation process, the receiving module 902 and the sending module 903 may be controlled by the processing module 901 to perform corresponding communication functions.

The receiving module 902 may receive a first DCI sent by a network device, where the first DCI carries first indication information and second indication information, the first indication information is used to indicate data transmission, and the second indication information is used to indicate inactivity of DRX The operation mode of the timer.

The processing module 901 may determine the operation mode of the inactivity timer according to the instruction of the first DCI. In a possible implementation manner, the processor 901 may also control the inactivity timer to perform the corresponding timing operation according to the operation mode indicated by the first DCI.

In a specific implementation process, the above-mentioned receiving module 902 and sending module 903 can be set separately, that is, at this time are two independent function modules, in a possible implementation manner, it can also be set as one function module, for example A transceiver module, which has both the ability of the receiving module 902 to receive information and the ability of the sending module 903 to send information.

Based on the same inventive concept, as shown in FIG. 10, an embodiment of the present application provides a communication device 1000. The communication device 1000 may be a network device, which can implement the function of the network device in the information transmission method provided by the embodiment of the present application; communication The device 1000 may also be a device that can support a network device to implement the function of the network device in the information transmission method provided by the embodiments of the present application. The communication device 1000 may be a hardware structure, a software module, or a hardware structure plus a software module. The communication device 1000 may be realized by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices. As shown in FIG. 10, the communication device 1000 may include a processing module 1001, a sending module 1002, and a receiving module 1003, where the receiving module 1003 may not be a necessary module, so in FIG. 10, it is indicated by a dotted line, the sending module 1002 and the receiving module 1003 It is used for the communication device 1000 to communicate with other modules, which may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.

The processing module 1001 may be used to execute S33 in the embodiment shown in FIG. 3, and / or other processes for supporting the technology described herein. The sending module 1002 may be used to perform S31 and S34 in the embodiment shown in FIG. 3, and / or other processes for supporting the technology described herein. In a specific implementation process, the sending module 1002 and the receiving module 1003 may be controlled by the processing module 1001 to perform corresponding communication functions.

The processing module 1001 may determine a first DCI that carries first indication information and second indication information. The first indication information is used to indicate data transmission, and the second indication information is used to indicate the operation mode of the inactivity timer.

The sending module 1002 may send the first DCI to the terminal device.

In the specific implementation process, the above-mentioned sending module 1002 and receiving module 1003 can be set separately, that is, at this time are two independent function modules. In a possible implementation manner, they can also be set as one function module, for example, A transceiver module, which has both the ability of the receiving module 1003 to receive information and the ability of the sending module 1002 to send information.

Wherein, all relevant content of the steps involved in the foregoing method embodiments can be referred to the function description of the corresponding function module, which will not be repeated here.

The division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another way of dividing. In addition, the functional modules in the embodiments of the present application may be integrated in one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module. The above integrated modules may be implemented in the form of hardware or software function modules.

Based on the same concept, please refer to FIG. 11, an embodiment of the present application provides a communication device 1100, and FIG. 11 shows a schematic structural diagram of a communication device 1100 provided by an embodiment of the present application, where the communication device 1100 may be a terminal device and can Realize the function of the terminal device in the information transmission method provided by the embodiment of the present application; the communication device 1100 may also be a device that can support the terminal device to realize the function of the terminal device in the information transmission method provided by the embodiment of the present application. The communication device 1100 may be a chip system. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

The communication device 1100 includes at least one processor 1101, configured to implement or support the device to implement the functions of the terminal device in the information transmission method provided by the embodiments of the present application.

The communication device 1100 may further include at least one memory 1102 for storing program instructions and / or data. The memory 1102 and the processor 1101 are coupled. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules. The processor 1101 may cooperate with the memory 1102. The processor 1101 may execute program instructions stored in the memory 1102. At least one of the at least one memory may be included in the processor.

The communication device 1100 may further include a transceiver 1103 for communicating with other devices through a transmission medium, so that the communication device 1100 may communicate with other devices. The processor 1101 may use the transceiver 1103 to send and receive data. The transceiver 1103 may correspond to, for example, the receiving module 902 and the sending module 903 in FIG. 9. The transceiver 1103 may specifically be some communication interfaces.

The embodiment of the present application does not limit the specific connection medium between the transceiver 1103, the processor 1101, and the memory 1102. In this embodiment of the present application, the memory 1102, the processor 1101, and the transceiver 1103 are connected by a bus 1104 in FIG. , Not to limit. The bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in FIG. 11, but it does not mean that there is only one bus or one type of bus.

Based on the same concept, please refer to FIG. 12, an embodiment of the present application provides a communication device 1200. FIG. 12 shows a schematic structural diagram of a communication device 1200 provided by an embodiment of the present application, where the communication device 1200 may be a network device, capable of Realize the function of the network device in the information transmission method provided by the embodiment of the present application; the communication device 1200 may also be an apparatus that can support the network device to realize the function of the network device in the information transmission method provided by the embodiment of the present application. The communication device 1200 may be a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

The communication device 1200 includes at least one processor 1201, which is used to implement or support the device to realize the function of the network device in the information transmission method provided by the embodiment of the present application.

The communication device 1200 may further include at least one memory 1202 for storing program instructions and / or data. The memory 1202 and the processor 1201 are coupled. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules. The processor 1201 may cooperate with the memory 1202. The processor 1201 may execute program instructions stored in the memory 1202. At least one of the at least one memory may be included in the processor.

The communication device 1200 may further include a transceiver 1203 for communicating with other devices through a transmission medium, so that the communication device 1200 may communicate with other devices. The processor 1201 may use the transceiver 1203 to send and receive data. The transceiver 1203 may correspond to, for example, the sending module 1002 and the receiving module 1003 in FIG. 10, and the transceiver 1203 may specifically be some communication interfaces.

The embodiments of the present application do not limit the specific connection medium between the transceiver 1203, the processor 1201, and the memory 1202. In the embodiment of the present application, in FIG. 12, the memory 1202, the processor 1201, and the transceiver 1203 are connected by a bus 1204. The bus is shown by a thick line in FIG. 12, and the connection between other components is only for schematic illustration. , Not to limit. The bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in FIG. 12, but it does not mean that there is only one bus or one type of bus.

In the embodiment of the present application, the foregoing processor 1101 and processor 1201 may be general-purpose processors, digital signal processors, application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gates or transistor logic devices, The discrete hardware components can implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware processor, or may be executed and completed by a combination of hardware and software modules in the processor.

In the embodiment of the present application, the memory 1102 and the memory 1202 may be non-volatile memories, such as an HDD or a solid state drive (SSD), or may be volatile memories (volatile memory), such as a random access memory RAM. The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in the embodiment of the present application may also be a circuit or any other device capable of realizing a storage function, which is used to store program instructions and / or data.

An embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium includes computer instructions. When the computer instructions run on the computer, the computer is allowed to execute the information transmission method in the embodiments of the present application.

An embodiment of the present application further provides a chip system. The chip system includes a processor, and may further include a memory, for implementing the information transmission method in the embodiment of the present application. The chip system may be composed of chips, or may include chips and other discrete devices.

An embodiment of the present application further provides a communication system, which includes the communication device 900 in FIG. 9 and the communication device 1000 in FIG. 10.

An embodiment of the present application further provides another communication system, which includes the communication device 1100 in FIG. 11 and the communication device 1200 in FIG. 12.

An embodiment of the present application also provides a computer program product containing instructions. The computer program product stores instructions, which when run on a computer, causes the computer to execute the information transmission method in the embodiments of the present application.

As mentioned above, the above embodiments are only used to introduce the technical solutions of the present application in detail, but the descriptions of the above embodiments are only used to help understand the method of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Changes or replacements that can be easily imagined by those skilled in the art should be covered by the protection scope of the embodiments of the present invention.

Claims (64)

An information transmission method, characterized in that the method includes: The terminal device receives first downlink control information DCI sent by the network device, where the first DCI carries first indication information and second indication information, the first indication information is used to indicate data transmission, and the second indication information is used To indicate the operation mode of the inactivity timer inactivity timer for discontinuous reception of DRX; The terminal device determines the operation mode of the inactivity timer according to the indication of the first DCI. The method according to claim 1, wherein the operation mode of the inactivity timer includes any one of the following: start timing, stop timing, reset timing, and continue timing. The method according to claim 1 or 2, wherein the second indication information is explicitly indicated in the first DCI, and the first DCI is used to schedule new transmission data or retransmission data. The method according to any one of claims 1-3, wherein the newly transmitted data in the first DCI indicates that an NDI field carries the first indication information, and the first DCI excludes the NDI field. The outer field carries the second indication information. The method according to claim 3 or 4, wherein When the first DCI is used to schedule newly transmitted data, the second indication information indicates that the operation mode of the inactivity timer is to continue timing or stop timing or start timing; or When the first DCI is used to schedule retransmission data, the second indication information is used to indicate that the operation mode of the inactivity timer is to reset the timer or stop the timer or start the timer. The method according to any one of claims 1-5, wherein the first DCI further carries third indication information, and the third indication information is used to indicate the total timing value of the inactivity timer, and the first The total timing value indicated by the three indication information is one of the total timing values configured by the network device as the terminal device. The method according to claim 6, wherein the second indication information and / or the third indication information are indicated in any one of the following ways: The second indication information and the third indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The third indication information is jointly indicated by different fields; or, The second indication information and the third indication information are simultaneously indicated by the value of one field; or, The second indication information and the third indication information are respectively indicated by different bits in one field. The method according to any one of claims 1-7, wherein the first DCI further carries fourth indication information, and the fourth indication information is used to indicate a timed value of the inactivity timer. The method according to claim 8, wherein the timed value comprises any one of the following: The number of time units; or, Timed proportion value, the timed proportion value is used to indicate the proportion of the total timing value of the inactivity timer. The method according to claim 8 or 9, wherein the second indication information and / or the fourth indication information are indicated in any one of the following ways: The second indication information and the fourth indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The fourth indication information is jointly indicated by different fields; or, The second indication information and the fourth indication information are simultaneously indicated by the value of one field; or, The second indication information and the fourth indication information are respectively indicated by different bits in one field. The method according to any one of claims 1-10, wherein the format of the first DCI is any one of format 0_0, format 0_1, format 1_0, and format 1_1; When the format of the first DCI is format 0_0 or format 1_0 or format 1_1, the cyclic redundancy check CRC bit of the first DCI is temporarily identified by the cell radio network C-RNTI or configured to be scheduled radio network CS- RNTI scrambling; When the format of the first DCI is format 0_1, the CRC bits of the first DCI are scrambled by the C-RNTI or CS-RNTI or semi-permanent channel state information wireless network temporary identifier SP-CSI-RNTI. The method according to any one of claims 1-11, wherein the first DCI is transmitted in an associated search space, and the configuration message configuration configuring the associated search space carries the second indication information, the second At least one of three indication information or fourth indication information, the third indication information is used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer. The method according to any one of claims 1-12, characterized in that If DCI is transmitted in the user equipment dedicated search space USS, the DCI carries at least one of the second indication information, the third indication information, or the fourth indication information, and the third indication information is used to indicate the inactivity the total timing value of timer, and the fourth indication information is used to indicate the timed value of the inactivity timer; If DCI is transmitted in the common search space CSS, the DCI does not carry the second indication information, the third indication information, or the fourth indication information, and the third indication information is used to indicate the total timing value of the inactivity timer , The fourth indication information is used to indicate the timed value of the inactivity timer. The method according to any one of claims 1 to 13, wherein the terminal device receiving the first DCI sent by the network device includes: The terminal device receives the first DCI sent by the network device during the DRX active time; or, The terminal device receives the first DCI sent by the network device during the timing of a downlink hybrid automatic repeat request HARQ round-trip time timer. The method according to any one of claims 1-14, wherein the second indication information passes the value of a field in the first DCI and the value in the previous DCI of the first DCI Indicates whether the values of the fields are the same; If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to stop timing or continue timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to start timing Or reset the timer; or, If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to start or reset the timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to stop Time or continue to time. The method according to claim 15, wherein, for multiple DCIs that are continuously transmitted and include the first DCI, the number of consecutive repeated transmissions that have the same value as the field in the first DCI is the same Is greater than or equal to a predetermined threshold, and the predetermined threshold is an integer greater than or equal to 2. An information transmission method, characterized in that the method includes: The network device determines first downlink control information DCI, where the first DCI carries first indication information and second indication information, the first indication information is used to indicate data transmission, and the second indication information is used to indicate non-contiguous Operation mode of inactivity timer receiving DRX; The network device sends the first DCI to the terminal device. The method according to claim 17, wherein the operation mode of the inactivity timer includes any one of the following: start timing, stop timing, reset timing, and continue timing. The method according to claim 17 or 18, wherein the second indication information displays an indication in the first DCI, and the first DCI is used to schedule new transmission data or retransmission data. The method according to any one of claims 17 to 19, wherein the newly transmitted data in the first DCI indicates that the NDI field carries the first indication information, and the first DCI excludes the NDI field. The outer field carries the second indication information. The method according to claim 19 or 20, characterized in that When the first DCI is used to schedule newly transmitted data, the second indication information indicates that the operation mode of the inactivity timer is to continue timing or stop timing or start timing; or When the first DCI is used to schedule retransmission data, the second indication information is used to indicate that the operation mode of the inactivity timer is to reset the timer or stop the timer or start the timer. The method according to any one of claims 17 to 21, wherein the first DCI further carries third indication information, and the third indication information is used to indicate the total timing value of the inactivity timer, and the first The total timing value indicated by the three indication information is one of the total timing values configured by the network device as the terminal device. The method according to claim 22, wherein the second indication information and / or the third indication information are indicated in any one of the following ways: The second indication information and the third indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The third indication information is jointly indicated by different fields; or, The second indication information and the third indication information are simultaneously indicated by the value of one field; or, The second indication information and the third indication information are respectively indicated by different bits in one field. The method according to any one of claims 17 to 23, wherein the first DCI further carries fourth indication information, and the fourth indication information is used to indicate the timed value of the inactivity timer. The method of claim 24, wherein the timed value comprises any one of the following: The number of time units; or, Timed proportion value, the timed proportion value is used to indicate the proportion of the total timing value of the inactivity timer. The method according to claim 24 or 25, wherein the second indication information and / or the fourth indication information are indicated in any one of the following ways: The second indication information and the fourth indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The fourth indication information is jointly indicated by different fields; or, The second indication information and the fourth indication information are simultaneously indicated by the value of one field; or, The second indication information and the fourth indication information are respectively indicated by different bits in one field. The method according to any one of claims 17 to 26, wherein the format of the first DCI is any one of format 0_0, format 0_1, format 1_0, and format 1_1; When the format of the first DCI is format 0_0 or format 1_0 or format 1_1, the cyclic redundancy check CRC bit of the first DCI is temporarily identified by the cell radio network C-RNTI or configured to be scheduled radio network CS- RNTI scrambling; When the format of the first DCI is format 0_1, the CRC bits of the first DCI are scrambled by the C-RNTI or CS-RNTI or the semi-permanent channel state information wireless network temporary identifier SP-CSI-RNTI. The method according to any one of claims 17 to 27, wherein the first DCI is transmitted in an associated search space, and the configuration message configuration configuring the associated search space carries the second indication information, the second At least one of three indication information or fourth indication information, the third indication information is used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer. The method according to any one of claims 17-28, characterized in that If the first DCI is transmitted in the user equipment dedicated search space USS, the first DCI carries at least one of the second indication information, the third indication information, or the fourth indication information, and the third indication information Used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer; If the first DCI is transmitted in the common search space CSS, the first DCI does not carry the second indication information, the third indication information, or the fourth indication information, and the third indication information is used to indicate the The total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer. The method according to any one of claims 17 to 29, wherein the network device sending the first DCI to a terminal device includes: The network device sends the first DCI to the terminal device during the DRX active time; or, The network device sends the first DCI to the terminal device during the timing of the downlink hybrid automatic repeat request HARQ round-trip time timer. The method according to any one of claims 17-30, wherein the second indication information passes the value of a field in the first DCI and the value in the previous DCI of the first DCI Indicates whether the values of the fields are the same; If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to stop timing or continue timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to start timing Or reset the timer; or, If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to start or reset the timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to stop Time or continue to time. The method according to claim 31, wherein, for a plurality of DCIs that are continuously transmitted and include the first DCI, the number of consecutive repeated transmissions with the same value of the field in the first DCI is the same Is greater than or equal to a predetermined threshold, and the predetermined threshold is an integer greater than or equal to 2. A communication device, characterized in that the communication device includes: A transceiver, configured to receive first downlink control information DCI sent by a network device, where the first DCI carries first indication information and second indication information, the first indication information is used to indicate data transmission, and the second The indication information is used to indicate the operation mode of the inactivity timer inactively receiving DRX; The processor is configured to determine the operation mode of the inactivity timer according to the indication of the first DCI. The communication device according to claim 33, wherein the operation mode of the inactivity timer includes any one of the following: start timing, stop timing, reset timing, and continue timing. The communication device according to claim 33 or 34, wherein the second indication information is explicitly indicated in the first DCI, and the first DCI is used to schedule new transmission data or retransmission data. The communication device according to any one of claims 33 to 35, wherein the newly transmitted data indication NDI field in the first DCI carries the first indication information, and the first DCI excludes the NDI field The other fields carry the second indication information. The communication device according to claim 35 or 36, wherein When the first DCI is used to schedule newly transmitted data, the second indication information indicates that the operation mode of the inactivity timer is to continue timing or stop timing or start timing; or When the first DCI is used to schedule retransmission data, the second indication information is used to indicate that the operation mode of the inactivity timer is to reset the timer or stop the timer or start the timer. The communication device according to any one of claims 33 to 37, wherein the first DCI further carries third indication information, and the third indication information is used to indicate the total timing value of the inactivity timer, the The total timing value indicated by the third indication information is one of the multiple total timing values configured by the network device as the terminal device. The communication device according to claim 38, wherein the second indication information and / or the third indication information are indicated in any one of the following ways: The second indication information and the third indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The third indication information is jointly indicated by different fields; or, The second indication information and the third indication information are simultaneously indicated by the value of one field; or, The second indication information and the third indication information are respectively indicated by different bits in one field. The communication device according to any one of claims 33 to 39, wherein the first DCI further carries fourth indication information, and the fourth indication information is used to indicate the timed value of the inactivity timer. The communication device according to claim 40, wherein the timed value includes any one of the following: The number of time units; or, Timed proportion value, the timed proportion value is used to indicate the proportion of the total timing value of the inactivity timer. The communication device according to claim 40 or 41, wherein the second indication information and / or the fourth indication information are indicated in any one of the following ways: The second indication information and the fourth indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The fourth indication information is jointly indicated by different fields; or, The second indication information and the fourth indication information are simultaneously indicated by the value of one field; or, The second indication information and the fourth indication information are respectively indicated by different bits in one field. The communication device according to any one of claims 33-42, wherein the format of the first DCI is any one of format0_0, format 0_1, format 1_0, and format 1_1; When the format of the first DCI is format 0_0 or format 1_0 or format 1_1, the cyclic redundancy check CRC bit of the first DCI is temporarily identified by the cell radio network C-RNTI or configured to be scheduled radio network CS- RNTI scrambling; When the format of the first DCI is format 0_1, the CRC bits of the first DCI are scrambled by the C-RNTI or CS-RNTI or the semi-permanent channel state information wireless network temporary identifier SP-CSI-RNTI. The communication device according to any one of claims 33 to 43, wherein the first DCI is transmitted in an associated search space, and the configuration message configuration configuring the associated search space carries the second indication information, At least one of third indication information or fourth indication information, the third indication information is used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer. The communication device according to any one of claims 33-44, wherein If DCI is transmitted in the user equipment dedicated search space USS, the DCI carries at least one of the second indication information, the third indication information, or the fourth indication information, and the third indication information is used to indicate the inactivity the total timing value of timer, and the fourth indication information is used to indicate the timed value of the inactivity timer; If DCI is transmitted in the common search space CSS, the DCI does not carry the second indication information, the third indication information, or the fourth indication information, and the third indication information is used to indicate the total timing value of the inactivity timer , The fourth indication information is used to indicate the timed value of the inactivity timer. The communication device according to any one of claims 33 to 45, wherein the transceiver is used to: Receiving the first DCI sent by the network device during DRX active time; or, Receiving the first DCI sent by the network device during the timing of a downlink hybrid automatic repeat request HARQ round-trip time timer. The communication device according to any one of claims 33 to 46, wherein the second indication information is determined by the value of a field in the first DCI and the value in the previous DCI of the first DCI Indicates whether the values of the above fields are the same; If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to stop timing or continue timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to start timing Or reset the timer; or, If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to start or reset the timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to stop Time or continue to time. The communication device according to claim 47, wherein, for a plurality of DCIs that are continuously transmitted and include the first DCI, are consecutively and repeatedly sent with the same value of the field in the first DCI The number of times is greater than or equal to a predetermined threshold, and the predetermined threshold is an integer greater than or equal to 2. A communication device, characterized in that the communication device includes: A processor, configured to determine first downlink control information DCI, where the first DCI carries first indication information and second indication information, the first indication information is used to indicate data transmission, and the second indication information is used to Indicate the operation mode of the inactivity timer inactively receiving DRX; The transceiver is used to send the first DCI to the terminal device. The communication device according to claim 49, wherein the operation mode of the inactivity timer includes any one of the following: start timing, stop timing, reset timing, and continue timing. The communication device according to claim 49 or 50, wherein the second indication information displays an indication in the first DCI, and the first DCI is used to schedule new transmission data or retransmission data. The communication device according to any one of claims 49 to 51, wherein the newly transmitted data indication NDI field in the first DCI carries the first indication information, and the first DCI excludes the NDI field The other fields carry the second indication information. The communication device according to claim 51 or 52, wherein When the first DCI is used to schedule newly transmitted data, the second indication information indicates that the operation mode of the inactivity timer is to continue timing or stop timing or start timing; or When the first DCI is used to schedule retransmission data, the second indication information is used to indicate that the operation mode of the inactivity timer is to reset the timer or stop the timer or start the timer. The communication device according to any one of claims 49-53, wherein the first DCI further carries third indication information, and the third indication information is used to indicate a total timing value of the inactivity timer, the The total timing value indicated by the third indication information is one of the multiple total timing values configured by the network device as the terminal device. The communication device according to claim 54, wherein the second indication information and / or the third indication information are indicated in any one of the following ways: The second indication information and the third indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The third indication information is jointly indicated by different fields; or, The second indication information and the third indication information are simultaneously indicated by the value of one field; or, The second indication information and the third indication information are respectively indicated by different bits in one field. The communication device according to any one of claims 49 to 55, wherein the first DCI further carries fourth indication information, and the fourth indication information is used to indicate the timed value of the inactivity timer. The communication device according to claim 56, wherein the timed value includes any one of the following: The number of time units; or, Timed proportion value, the timed proportion value is used to indicate the proportion of the total timing value of the inactivity timer. The communication device according to claim 56 or 57, wherein the second indication information and / or the fourth indication information are indicated in any one of the following ways: The second indication information and the fourth indication information are respectively indicated by different fields; or, The second indication information is jointly indicated by different fields; or, The fourth indication information is jointly indicated by different fields; or, The second indication information and the fourth indication information are simultaneously indicated by the value of one field; or, The second indication information and the fourth indication information are respectively indicated by different bits in one field. The communication device according to any one of claims 49-58, wherein the format of the first DCI is any one of format0_0, format 0_1, format 1_0, and format 1_1; When the format of the first DCI is format 0_0 or format 1_0 or format 1_1, the cyclic redundancy check CRC bit of the first DCI is temporarily identified by the cell radio network C-RNTI or configured to be scheduled radio network CS- RNTI scrambling; When the format of the first DCI is format 0_1, the CRC bits of the first DCI are scrambled by the C-RNTI or CS-RNTI or the semi-permanent channel state information wireless network temporary identifier SP-CSI-RNTI. The communication device according to any one of claims 49-59, wherein the first DCI is transmitted in an associated search space, and the configuration message configuration configuring the associated search space carries the second indication information, At least one of third indication information or fourth indication information, the third indication information is used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer. The communication device according to any one of claims 49-60, characterized in that If the first DCI is transmitted in the user equipment dedicated search space USS, the first DCI carries at least one of the second indication information, the third indication information, or the fourth indication information, and the third indication information Used to indicate the total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer; If the first DCI is transmitted in the common search space CSS, the first DCI does not carry the second indication information, the third indication information, or the fourth indication information, and the third indication information is used to indicate the The total timing value of the inactivity timer, and the fourth indication information is used to indicate the timed value of the inactivity timer. The communication device according to any one of claims 49 to 61, wherein the transceiver is used to: Sending the first DCI to the terminal device during the DRX active time; or, Sending the first DCI to the terminal device during the timing of the downlink hybrid automatic repeat request HARQ round-trip time timer. The communication device according to any one of claims 49 to 62, wherein the second indication information passes the value of a field in the first DCI and the value in the previous DCI of the first DCI. Indicates whether the values of the above fields are the same; If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to stop timing or continue timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to start timing Or reset the timer; or, If the values are the same, the second indication information indicates that the operation mode of the inactivity timer is to start or reset the timing, and, if the values are different, the second indication information indicates that the operation mode of the inactivity timer is to stop Time or continue to time. The communication device according to claim 63, characterized in that, for a plurality of DCIs that are continuously transmitted and include the first DCI, are consecutively and repeatedly sent with the same value of the field in the first DCI The number of times is greater than or equal to a predetermined threshold, and the predetermined threshold is an integer greater than or equal to 2.

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