WO2020143747A1 - Communication method and apparatus - Google Patents

Abstract

Provided by the present application are a communication method and apparatus. The method comprises: a terminal device receiving a first message sent by a network device, wherein the first message is used to indicate that the terminal device enters a sleep state during a discontinuous reception (DRX) active period; if a first preset condition is met when the first message is received, the terminal device being in the sleep state within a remaining time period of a DRX cycle in which the DRX active period is located; and/or, if the first preset condition is not met when the first message is received, the terminal device being in the sleep state within a first time period after receiving the first message. In the embodiments of the present application, after receiving the first message, the terminal device determines whether to be in the sleep state during the first time period or the remaining time period according to whether the first preset condition is met when the first message is received, which helps to conserve power consumed by the terminal device.

Description

Communication method and device

This application requires the priority of a Chinese patent application filed on January 11, 2019 in the Chinese Patent Office with application number 201910028839.9 and application name "Communication Method and Device", the entire contents of which are incorporated by reference in this application.

Technical field

The present application relates to the field of communications, and more specifically, to transmission communication methods and devices.

Background technique

In existing communication systems, reducing the power consumption of terminal devices has always been a concern. In the existing technology, a semi-static discontinuous reception (DRX) mechanism can be combined with a dynamic power-saving message (for example, Go-To-Sleep (GTS) message) mechanism. Controlling the terminal device to be in a sleep state helps to further reduce the power consumption of the terminal device. The following description uses the power saving message as GTS as an example.

The DRX mechanism is that the network equipment configures the terminal equipment for the DRX cycle (DRX cycle), duration timer (ONDurationTimer) length, inactivity time timer (InactivityTimer) length, retransmission timer (RetransmissionTimer) length, etc. In the DRX parameter, the terminal device is controlled to be in a sleep state (OFF mode) or an active state (active mode) through a corresponding timer. For example, when the DRX duration timer, or inactive time timer, or retransmission timer is timing, the terminal device is in an active state. That is to say, during the DRX active period (active time), the terminal device is in an active state, and it is necessary to perform blind detection on the PDCCH. Except for other times during the DRX active period, the terminal device is in a dormant state and does not need to perform blind detection on the PDCCH search space. Since the above DRX parameters are all configured by the network device for the terminal device in a semi-static manner, generally these parameter configurations will not change for a long time. Therefore, even if the terminal device has no data to receive during the DRX active period, it still needs to be in an active state, resulting in a relatively limited power consumption of the terminal device based on the DRX mechanism. In order to further reduce the power consumption of the terminal device, GTS is combined with the above DRX mechanism to dynamically adjust whether the terminal device is in a sleep state or an active state. That is, when the network device does not send data to the terminal device, it can send a GTS message to the terminal device to notify the terminal device to enter the sleep state during the DRX active period.

However, in this mechanism of dynamically adjusting the terminal device to enter the sleep state through the GTS message, the GTS message can only indicate that the terminal device is in the sleep state for a fixed period of time, resulting in a very small amount of power that the terminal device can save in a single GTS message indication limited. Specifically, when the terminal device does not need to receive data in the remaining period of the DRX active period, and the duration indicated by the GTS is less than the remaining period of the DRX duration, the terminal device remains active for a period of time during the DRX active period , And power consumption that is active during this time is unnecessary. For example, the remaining duration of the DRX duration is 5 ms, and the duration of the GTS indicating that the terminal device is in the sleep state is 2 ms. During the DRX active period, the terminal device will still be active for 3 ms.

Summary of the invention

The present application provides a communication method and device, which is beneficial to increase the power saved by the terminal device.

In a first aspect, a communication method is provided, including: a terminal device receiving a first message sent by a network device, where the first message is used to instruct the terminal device to enter a sleep state during a discontinuous reception DRX active period; The first preset condition is met when the first message is met, and the terminal device is in the dormant state during the remaining time period of the DRX cycle where the DRX active period is located; and/or, if the first message is not received Satisfying the first preset condition, the terminal device is in the sleep state within a first period of time after receiving the first message.

In the embodiment of the present application, it is determined that the terminal device is in the sleep state during the first time period or the remaining time period according to whether the first preset condition is met when receiving the first message, which is beneficial to increase the power saving of the terminal device. In the prior art, when the network device instructs the terminal device to be in the sleep state during the GTS duration through the GTS, and the time indicated by the GTS is less than the remaining duration of the DRX duration, the terminal device remains active for a period of time during the DRX active period. Cause unnecessary power consumption. The DRX duration is the duration of the DRX duration timer.

Further, in two cases, that is, when the first preset condition is satisfied when receiving the first message, and when the first preset condition is not satisfied when receiving the first message, the terminal device The first message is either in the dormant state for the first time period or in the dormant state for the remaining time period, which is helpful to improve the flexibility of the network device to indicate that the terminal device is in the dormant state through the first message, which is beneficial to save power and avoid Strike a balance between extending the communication delay between terminal equipment and network equipment.

In a possible implementation, the first time period is shorter than the remaining time period.

In the embodiment of the present application, if the first preset condition is satisfied, the terminal device is controlled to be in a dormant state for the remaining time period through the first message, and if the first preset condition is not satisfied, the terminal device is controlled on the first Being in a dormant state for a period of time helps to reduce the power consumption of the terminal device, and generally does not increase the communication delay with the terminal device and the network device.

In a possible implementation manner, the first preset condition includes any one of the following conditions: only the DRX duration timer is met in the determination condition of the DRX active period; and the first message is received at Within a second time period before the DRX duration, and the terminal device is in a sleep state during the second time period.

In the embodiment of the present application, if the first preset condition is the determination condition of the DRX active period, only the DRX duration timer is met, and when the first preset condition is met, it is determined that the terminal device has no data to be sent during the DRX active period And no data needs to be received, the first message can be used to control the terminal device to sleep in the remaining time period, which is beneficial to reduce the power consumption of the terminal device. Accordingly, since the terminal device has no data to be sent during the DRX active period And there is no data that needs to be received, controlling the terminal device to be in the dormant state for the remaining time period, and it will not increase the delay of the communication between the network device and the terminal device. When the first preset condition is not satisfied, controlling the terminal device to be in the sleep state within the first time period is beneficial to reducing the power consumption of the terminal device.

In the embodiment of the present application, if the first preset condition is that the first message is received in the second time period before the DRX duration, and the terminal device is in the sleep state during the second time period, it is satisfied When the first preset condition is determined that the current terminal device may not need data transmission with the network device, or the data transmission with the network device has been completed before the second time period, the first message may be used Controlling the terminal device to be in the dormant state for the remaining period of time is beneficial to reduce the power consumption of the terminal device. Accordingly, the current terminal device may not have the need for data transmission with the network device, or it has been before the second period of time The data transmission with the network device is completed, and the terminal device is controlled to be in the dormant state for the remaining period of time, and generally the communication delay between the network device and the terminal device is not increased. When the first preset condition is not satisfied, controlling the terminal device to be in the sleep state within the first time period is beneficial to reducing the power consumption of the terminal device.

In a possible implementation manner, the first preset condition is that only the DRX duration timer is met in the determination condition of the DRX active period, and the terminal device receiving the first message sent by the network device includes: The terminal device receives the first message on a first time domain resource, the first time domain resource and the second time domain resource occupied by the physical downlink control channel PDCCH detection are located in the same time slot, and the terminal device is not located Detecting the PDCCH on the second time domain resource.

In the embodiment of the present application, if the first time domain resource and the second time domain resource are in the same time slot, after receiving the first message on the first time domain resource, the terminal device does not perform PDCCH on the second time domain resource Detection is helpful to reduce the power consumption of terminal equipment.

In a possible implementation manner, the first time domain resource and the second time domain resource at least partially overlap.

In a possible implementation manner, the first time domain resource and the second time domain resource satisfy at least one of the following second preset conditions: the first time domain resource is the second time domain resource A subset of, the time difference between the start symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to a time threshold, and the end symbol of the first time domain resource and the second The time difference between the end symbols of the time domain resource is less than or equal to the time threshold, the time difference between the end symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to the time threshold, and the The time difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to the time threshold.

In the embodiment of the present application, determining the association relationship between the first time domain resource and the second time domain resource through the time threshold is beneficial to simplify the determination method for determining the first time domain resource and the second time domain resource.

In a second aspect, a method for transmitting a first message is provided, including: a terminal device detects a first message on a first time domain resource, and the first time domain resource and the second time domain resource occupied by PDCCH detection are located at the same time If the first message is detected on the first time domain resource, the terminal device does not detect the PDCCH on the second time domain resource.

In the embodiment of the present application, if the first time domain resource and the second time domain resource are in the same time slot, after receiving the first message on the first time domain resource, the terminal device does not perform PDCCH on the second time domain resource Detection is helpful to reduce the power consumption of terminal equipment.

In a possible implementation manner, the first time domain resource and the second time domain resource at least partially overlap.

In a possible implementation manner, the first time domain resource and the second time domain resource satisfy any one of the following preset conditions: the first time domain resource is a child of the second time domain resource Set, the time difference between the start symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to a time threshold, the end symbol of the first time domain resource and the second The time difference between the end symbols of the time domain resource is less than or equal to the time threshold, and the time difference between the end symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to the time threshold, and all The time difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold.

In the embodiment of the present application, determining the association relationship between the first time domain resource and the second time domain resource through the time threshold is beneficial to simplify the determination method for determining the first time domain resource and the second time domain resource.

In a third aspect, a communication method is provided, including: a network device generating a first message, where the first message is used to instruct a terminal device to enter a sleep state during a discontinuous reception DRX active period; the network device sends the terminal device the message A first message, wherein, if the first preset condition is met when receiving the first message, the first message indicates that the terminal device is in the dormant state during the remaining time period of the DRX cycle in which the DRX active period is located State, if the first preset condition is not met when receiving the first message, the first message indicates that the terminal device is in the sleep state within a first time period after receiving the first message .

In the embodiment of the present application, it is determined that the terminal device is in the sleep state during the first time period or the remaining time period according to whether the first preset condition is met when receiving the first message, which is beneficial to increase the power saving of the terminal device. In the prior art, when the network device instructs the terminal device to be in the sleep state during the GTS duration through the GTS, and the time indicated by the GTS is less than the remaining duration of the DRX duration, the terminal device remains active for a period of time during the DRX active period. Cause unnecessary power consumption.

Further, in two cases, that is, when the first preset condition is satisfied when receiving the first message, and when the preset condition is not satisfied when receiving the first message, the terminal device The message is either in the dormant state for the first time period, or in the dormant state for the remaining time period, which is helpful for improving the flexibility of the network device to indicate that the terminal device is in the dormant state through the first message, which is beneficial to save power and avoid extending the terminal The communication delay between the device and the network device is balanced.

In a possible implementation, the first time period is shorter than the remaining time period.

In the embodiment of the present application, if the first preset condition is satisfied, the terminal device is controlled to be in a dormant state for the remaining time period through the first message, and if the first preset condition is not satisfied, the terminal device is controlled on the first Being in a dormant state for a period of time helps to reduce the communication delay between the terminal device and the network device while reducing the power consumed by the terminal device.

In a possible implementation manner, the first preset condition includes at least one of the following conditions: only the DRX duration timer is met in the determination condition of the DRX active period; and the first message is received at Within a second time period before the DRX duration, and the terminal device is in a sleep state during the second time period.

In the embodiment of the present application, if the first preset condition is the determination condition of the DRX active period, only the DRX duration timer is met, and when the first preset condition is met, it is determined that the terminal device has no data to be sent during the DRX active period And no data needs to be received, the first message can be used to control the terminal device to sleep in the remaining time period, which is beneficial to reduce the power consumption of the terminal device. Accordingly, since the terminal device has no data to be sent during the DRX active period And there is no data that needs to be received, controlling the terminal device to be in the dormant state for the remaining time period, and it will not increase the delay of the communication between the network device and the terminal device. When the first preset condition is not satisfied, controlling the terminal device to be in the sleep state within the first time period is beneficial to reducing the power consumption of the terminal device.

In the embodiment of the present application, if the first preset condition is that the first message is received in the second time period before the DRX duration, and the terminal device is in the sleep state during the second time period, it is satisfied When the first preset condition is determined that the current terminal device may not need data transmission with the network device, or the data transmission with the network device has been completed before the second time period, the first message may be used Controlling the terminal device to be in the dormant state for the remaining period of time is beneficial to reduce the power consumption of the terminal device. Accordingly, the current terminal device may not have the need for data transmission with the network device, or it has been before the second period of time The data transmission with the network device is completed, and the terminal device is controlled to be in the dormant state for the remaining period of time, and generally the communication delay between the network device and the terminal device is not increased. When the first preset condition is not satisfied, controlling the terminal device to be in the sleep state within the first time period is beneficial to reducing the power consumption of the terminal device.

In a possible implementation manner, the first preset condition is that only the DRX duration timer is met in the determination condition of the DRX active period, and the network device sends the first message to the terminal device The method includes: the network device sends the first message on a first time domain resource, and the first time domain resource and the second time domain resource occupied by the physical downlink control channel PDCCH detection are located in the same time slot.

In the embodiment of the present application, if the first time domain resource and the second time domain resource are in the same time slot, after receiving the first message on the first time domain resource, the terminal device does not perform PDCCH on the second time domain resource Detection is helpful to reduce the power consumption of terminal equipment.

In a possible implementation manner, the first time domain resource and the second time domain resource at least partially overlap.

In a possible implementation manner, the first time domain resource and the second time domain resource satisfy at least one of the following second preset conditions: the first time domain resource is the second time domain resource A subset of, the time difference between the start symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to a time threshold, and the end symbol of the first time domain resource and the second The time difference between the end symbols of the time domain resource is less than or equal to the time threshold, the time difference between the end symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to the time threshold, and the The time difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to the time threshold.

In the embodiment of the present application, determining that the first time domain resource and the second time domain resource are located in the same time slot through the time threshold is beneficial to simplify the determination method of determining the first time domain resource and the second time domain resource.

According to a fourth aspect, a communication device is provided. The device may be a terminal device or a chip in the terminal device. The device may include a processing unit and a transceiver unit. When the apparatus is a terminal device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the terminal device may further include a storage unit, and the storage unit may be a memory; For storing instructions, the processing unit executes the instructions stored by the storage unit, so that the terminal device executes the method in the first aspect or the second aspect. When the device is a chip in a terminal device, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin or a circuit, etc.; the processing unit executes instructions stored in the storage unit, In order for the terminal device to perform the method in the first aspect or the second aspect, the storage unit may be a storage unit (eg, register, cache, etc.) in the chip, or may be located in the terminal device. A storage unit outside the chip (eg, read only memory, random access memory, etc.).

According to a fifth aspect, a communication apparatus is provided, and the apparatus may be a network device or a chip in the network device. The device may include a processing unit and a transceiver unit. When the apparatus is a network device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the network device may further include a storage unit, and the storage unit may be a memory; To store instructions, the processing unit executes the instructions stored by the storage unit, so that the network device executes the method in the third aspect. When the apparatus is a chip in a network device, the processing unit may be a processor, and the transceiver unit may be an input/output interface, a pin, or a circuit, etc.; the processing unit executes instructions stored in the storage unit, In order for the network device to execute the method in the third aspect, the storage unit may be a storage unit (eg, register, cache, etc.) within the chip, or may be located outside the chip within the network device Storage unit (for example, read-only memory, random access memory, etc.).

According to a sixth aspect, a computer program product is provided. The computer program product includes: computer program code, which, when the computer program code runs on a computer, causes the computer to execute the method in the above aspects.

It should be noted that the above computer program code may be stored in whole or in part on the first storage medium, where the first storage medium may be packaged with the processor or separately packaged with the processor, which is not done in the embodiments of the present application Specific restrictions.

In a seventh aspect, a computer-readable medium is provided, the computer-readable medium stores program code, and when the computer program code runs on a computer, the computer is caused to perform the method in the above aspects.

BRIEF DESCRIPTION

FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application.

Figure 2 is a schematic diagram of the principle of the DRX mechanism.

FIG. 3 is a schematic flowchart of a method for transmitting a first message according to an embodiment of this application.

FIG. 4 is a schematic diagram of the remaining time of the DRX cycle in the embodiment of the present application.

FIG. 5 is a schematic diagram of the time relationship between the second time period and the DRX duration in the embodiment of the present application.

6 is a schematic diagram of the time relationship between the second time period and the DRX duration in another embodiment of the present application.

7 is a schematic flowchart of a method for transmitting a first message according to another embodiment of the present application.

8 is a schematic diagram of a communication device according to an embodiment of the present application.

9 is a schematic block diagram of a terminal device according to an embodiment of the present application.

10 is a schematic diagram of a communication device according to an embodiment of the present application.

FIG. 11 is a schematic diagram of a network device according to an embodiment of the present application.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application. The wireless communication system 100 may include a network device 110. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.

FIG. 1 exemplarily shows one network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminals within the coverage area. Examples do not limit this.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

The above-mentioned communication system may be a global mobile communication (global system for mobile communications, GSM) system, a code division multiple access (code division multiple access, CDMA) system, a wideband code division multiple access (wideband code division multiple access (WCDMA) system, universal Packet radio service (general packet radio service, GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), general purpose Mobile communication system (universal mobile telecommunication system, UMTS), global interconnected microwave access (worldwide interoperability for microwave access, WiMAX) communication system, future fifth generation (5th generation, 5G) system or new wireless (new radio, NR) Wait.

The terminal device may be a mobile station (MS), a mobile terminal (mobile terminal), a mobile phone (mobile telephone), a user equipment (UE), a mobile phone (handset), a portable device (portable equipment), etc. The terminal device may also communicate with one or more core networks via a radio access network (RAN). For example, the terminal device may be a mobile phone (or "cellular" phone) with wireless communication function The terminal device may also be a portable, pocket-sized, handheld, built-in computer, or mobile device in the vehicle. The terminal device may also be a terminal device in a future 5G network or a terminal device in a public land mobile communication network (PLMN) that is evolving in the future, which is not limited in the embodiments of the present application.

The above network device may be a device for communicating with a terminal device. The network device may be a base station in a GSM system or CDMA, or a base station (NodeB, NB) in a WCDMA system, or may be an evolved type in an LTE system A base station (evolved NodeB, eNB, or eNodeB) can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable The device and the network device in the future 5G network or the network device in the future evolved PLMN network are not limited in the embodiments of the present application.

In the embodiments of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes central processing unit (CPU), memory management unit (memory management unit, MMU), and memory (also called main memory) and other hardware. The operating system may be any one or more computer operating systems that implement business processes through processes, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes browser, address book, word processing software, instant messaging software and other applications. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution body of the method provided in the embodiment of the present application, as long as it can run the program that records the code of the method provided by the embodiment of the present application to provide according to the embodiment of the present application The method may be used for communication. For example, the execution body of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.

In addition, various aspects or features of the present application may be implemented as methods, devices, or articles using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CD), digital universal discs (digital) discs, DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

In order to facilitate understanding, first introduce the terminology involved in this application.

1. DRX active period (active time) and active state

The terminal equipment is active during the DRX active period. The DRX active period may specifically include the following situations:

Case 1: drx-on Duration Timer, drx-Inactivity Timer, drx-Retransmission Timer, drx-Retransmission Timer, drx upstream retransmission timer (drx) -Retransmission Timer (UL) and random access contention resolution timer (random access content Resolution Resolution, ra-Contention Resolution Timer) any one timer is in the state of timing.

It should be noted that, for the first case above, if only the drx duration timer is counted in the above timer, and the other timers are not counted, it means that in the determination condition of the DRX active period in the embodiment of the present application, only the DRX duration is satisfied A meaning of "time timer timing".

Case 2: A scheduling request (scheduling request, SR) is sent through a physical uplink control channel (Physical Uplink Control Channel, PUCCH), and the scheduling request is being suspended.

Case 3: After successfully receiving a random access response corresponding to a non-contention-based random access preamble, a physical downlink control channel (PDCCH) indicating a new transmission and satisfying the following conditions has not been received ): The PDCCH corresponds to a cell radio network temporary identifier (C-RNTI) of a media access control (MAC) entity.

It should be noted that, for the above three cases, if only the drx duration timer counts in the above timers, the other timers in case 1 do not count, and the terminal device is not in the state described in case 2 and case 3 This is another meaning of "the DRX active period of the decision condition that only meets the DRX duration timer timing" in the embodiment of the present application.

Correspondingly, in any one or more of the above three cases, the terminal device needs to detect the PDCCH, where detecting the PDCCH includes detecting a PDCCH corresponding to the following radio network temporary identifier (RNTI): cell RNTI (cell-RNTI, C-RNTI), configured scheduling RNTI (configured scheduling-RNTI, CS-RNTI), interrupt RNTI (interruption-RNTI, INT-RNTI), slot format identifier RNTI (slot format format indicator-RNTI, SFI -RNTI), semi-persistent channel state information RNTI (semi-persistent channel state information, SP-CSI-RNTI), PUCCH transmission power control RNTI (transmit power) control-PUCCH-RNTI, TPC-PUCCH-RNTI), PUSCH transmission power control RNTI (transmit power control-PUSCH-RNTI, TPC-PUSCH-RNTI), trial reference signal transmission power control RNTI (transmit power control-sounding reference signal-RNTI, TPC-SRS-RNTI).

In the above, the PDCCH corresponding to the RNTI may refer to scrambling the cyclic redundancy check (CRC) bits of the DCI carried by the PDCCH with the RNTI.

It should also be noted that the DRX active period may include other situations specified in the future communication protocol in addition to the above-mentioned situations, which is not specifically limited in the embodiments of the present application.

2. DRX sleep state

The terminal device may be in a sleep state (also called a power-saving state) during a time other than the DRX active period (for example, DRX inactive time). For example, during the DRX sleep period, the terminal device may not detect the PDCCH. In a DRX cycle, time periods other than the above-mentioned DRX active period can be regarded as the DRX sleep period.

Correspondingly, when the terminal device is in the sleep state, it includes not performing PDCCH detection corresponding to the following RNTIs: cell RNTI (cell-RNTI, C-RNTI), configured scheduling RNTI (configured scheduling-RNTI, CS-RNTI), and interrupt RNTI (interruption -RNTI, INT-RNTI), slot format identifier RNTI (slot format indicator-RNTI, SFI-RNTI), semi-persistent channel state information RNTI (semi-persistent channel state information, SP-CSI-RNTI), PUCCH transmission power control RNTI (transmit power control-PUCCH-RNTI, TPC-PUCCH-RNTI), PUSCH transmission power control RNTI (transmit power, control-PUSCH-RNTI, TPC-PUSCH-RNTI), trial reference signal transmission power control RNTI (transmit power, control- sounding reference signal-RNTI, TPC-SRS-RNTI), etc.

In the above, the PDCCH corresponding to the RNTI may refer to scrambling the cyclic redundancy check (CRC) bits of the DCI carried by the PDCCH with the RNTI.

In the following, based on the introduction of the above terminology, the DRX-based mechanism is first introduced in conjunction with FIG. 2, and then a power-saving message is introduced based on DRX: a go to sleep (GTS) message control method for controlling the terminal device to enter a sleep state. It should be noted that, in FIG. 2, only the DRX cycle 210 and the DRX cycle 220 are introduced as an example. DRX also includes other configuration methods specified in the current communication protocol, and the method of the embodiment of the present application may also be used.

In existing communication protocols (such as LTE and NR R15 versions), the DRX mechanism is introduced, which saves the power of the terminal device to a certain extent. The principle of the DRX mechanism is shown in FIG. 2.

In the DRX mechanism, it is divided into different DRX cycles (DRX cycles). In the DRX cycle 210, a DRX duration (ON duration) is configured. In the ON duration, the ON duration is timed, and the terminal device needs to perform PDCCH monitoring (PDCCH monitoring) If none of the PDCCH detections in ONduration detects uplink (UL) data scheduling or downlink (DL) data scheduling, the terminal device enters DRX sleep except for ON duration during the DRX cycle State (OFF mode) does not perform PDCCH detection to save power.

In the DRX cycle 220, if the terminal device detects the newly transmitted DL data schedule or UL data schedule during the PDCCH detection within the DRX duration, it starts or restarts the drx-Inactivity Timer. During the timing of the drx-Inactivity Timer, the terminal equipment needs PDCCH detection as in ON duration. Specifically, the LTE and NR R15 protocols stipulate that under ON timing or drx-Inactivity Timer timing, or other circumstances (such as retransmission timer timing, etc.), the terminal device needs to perform PDCCH detection, and the above period of time is collectively referred to as DRX Active period.

When ON timer and drx-Inactivity Timer both stop timing, and other timers (such as drx-Retransmission Timer) also stop timing, the DRX active period ends, the terminal device enters the DRX sleep state, and does not perform PDCCH detection to save Power.

In the above DRX mechanism, DRX parameters such as DRX cycle, ON duration, drx-Inactivity Timer, etc. are all configured by the network device for the terminal device in a semi-static manner through RRC messages. Among them, the typical configuration example is {DRX cycle , ON, duration, Inactivity timer, the corresponding configuration parameters can be {160ms, 8ms, 100ms}, {320ms, 10ms, 80ms}, etc. In other words, before configuring the DRX parameters next time, the terminal device can only enter the sleep state according to the configured DRX parameters. However, it is very likely that the network device will not transmit data to the terminal device for a long period of time. At this time, if the terminal device still enters the DRX duration in the DRX cycle according to the DRX parameter and performs PDCCH detection, the terminal device will still be wasted Of electricity.

In order to avoid the above situation, the network device can dynamically instruct the terminal device to enter the sleep state through the GTS message on the basis of the above DRX mechanism. Specifically, the way to dynamically instruct the terminal device to enter the sleep state through the GTS message is generally that the GTS instructs the terminal device to be in the sleep state within the first time period.

In other words, each GTS message corresponds to a fixed length of time, that is, the first time period. The terminal device takes the receiving time of receiving the GTS message as the starting time, and is in a sleep state within the first time period, where the receiving time is the starting time At the beginning, the time period of the first time period is the first time period.

It should be noted that each GTS message may carry an index indicating the time duration. The index may be selected from multiple indexes, and different indexes in the multiple indexes have different time lengths.

The above method indicates that the terminal device is in the dormant state for the first period of time. When the first duration is less than the remaining duration of the DRX duration, the network device has no way to control the terminal device to be in the dormant state through the GTS message for the entire remaining duration. After the first duration The terminal device still needs to enter the DRX active period to perform PDCCH detection.

In order to avoid the above situation, the embodiments of the present application provide a communication method. Under different conditions, the meaning of the first message is different, which is beneficial to flexibly control the duration of the terminal device in the sleep state.

The communication method of the embodiment of the present application will be described in detail below with reference to FIG. 3. The method shown in FIG. 3 includes steps 310 to 340.

310. The network device generates a first message, where the first message is used to instruct the terminal device to enter a sleep state during the discontinuous reception DRX active period.

The above first message may be a power saving message above, a GTS message, a wakeup message (WUS), or a message with the same effect specified in a future communication protocol. This application is implemented The example does not specifically limit this.

320. The network device sends the first message to the terminal device.

330. If the first preset condition is met when receiving the first message, the terminal device is in the sleep state for the remaining time period of the DRX cycle where the DRX active period is located.

The above first preset condition is used by the terminal device to determine whether the period in which the first message indicates that the terminal device is in the sleep state is the remaining time period above or the target time period below. Optionally, the first preset condition is used to indicate the moment when the terminal device receives the first message, and the first preset condition may also be used to indicate the state when the terminal device receives the first message.

If the first preset condition is met when receiving the first message, the first message is used to indicate that the terminal device is in a dormant state during the remaining period of the DRX cycle in which the DRX active period is located. Accordingly, the terminal device receives the first message After a message, it may be in a dormant state for the remaining time period of the DRX cycle where the DRX active period is located.

The remaining time period of the DRX cycle may include a period of time taking the receiving time of the terminal device receiving the first message as the starting time, and taking the end time of the DRX cycle as the ending time. It should be noted that the above remaining time period may include a time period corresponding to the DRX cycle where the entire DRX active period is located, or may also include a time period corresponding to the DRX cycle where the partial DRX active period is located. Referring to FIG. 4, the first DRX cycle 410 is a cycle before the second DRX cycle 420, and the DRX cycle where the DRX active period is located is the second DRX cycle 420, assuming that the terminal device receives the first message in the first DRX cycle 410, Based on the above definition of the remaining time of the DRX cycle, the remaining time of the DRX cycle may include the entire second DRX cycle 420. Assuming that the terminal device receives the first message at the receiving time 430 of the second DRX cycle 420, based on the definition of the remaining time of the DRX cycle, the remaining time of the DRX cycle is based on the receiving time 430 and the second DRX The end time of the cycle 420 is a period of time 440 at the end time, that is, the DRX cycle in which part of the DRX active period is located.

It should be noted that the first preset condition may be specified in the communication protocol, or may be pre-configured by the network device to the terminal device, which is not specifically limited in this embodiment of the present application.

340. If the first preset condition is not satisfied when receiving the first message, the terminal device is in the sleep state within a first time period after receiving the first message.

If the first preset condition is not met when receiving the first message, the first message is used to indicate that the terminal device is in a sleep state within a first period of time after receiving the first message, then the terminal device receives After the first message, it may be in a sleep state for a first period of time.

The first preset condition may include one preset condition or multiple preset conditions. For example, in the following implementation form 4 of the first preset condition, it can be understood that the first preset condition includes two conditions, that is, the first The message is received in the second time period before the DRX duration, and the terminal device is in the sleep state during the second time period. For another example, in the second implementation form of the first preset condition below, it can be understood that the first preset condition includes a condition that the DRX active period decision condition only meets the DRX duration timer timing.

The following describes several possible implementation forms of the above first preset condition with reference to the drawings.

Implementation form one, the DRX duration timer (ON duration timer) is timing.

If the first preset condition in the above implementation form 1 is met when the first message is received, the terminal device is in the DRX active period, that is, it may include that the terminal device is in any of the cases 1 to 3 mentioned above. In one case. In this case, the terminal device may have the possibility of data to be sent or received, but if the demand for power saving is higher than the need to shorten the communication delay, the terminal device can be controlled by the first message within the remaining time period Is in sleep state.

Implementation form 2: The DRX active period only meets the DRX duration timer.

The above-mentioned decision condition of the DRX active period may be understood as the condition that triggers the DRX active period, and its specific meaning may include "the decision condition of the DRX active period only satisfies the DRX duration timer timing" described when the three situations are introduced above. Either of the two meanings of, for brevity, will not repeat them here.

If the first preset condition in implementation form 2 is met when the first message is received, the terminal device in the DRX active period has no data to send during the DRX active period because only the DRX duration timer counts , And no data needs to be received. In this case, in order to reduce the power of the terminal device, the terminal device can be controlled to be in the sleep state for the remaining time period through the first message.

It should be noted that in the implementation form 2, the DRX active period decision condition only meets the DRX duration timer timing, that is, the terminal device is in the above-mentioned situation 1 only the DRX duration timer counts, and does not meet In the first case, other conditions than the DRX duration timer count, and the second and third cases are not satisfied.

It should also be noted that, in the first implementation manner and the second implementation manner described above, the terminal device can be put into a sleep state by adjusting the timer in the timer state of the terminal device to an untimed state. For example, when only the DRX duration timer counts, the DRX duration timer may be adjusted to a non-counting state, so that the terminal device enters the sleep state.

Through the first implementation manner and the second implementation manner, it can be defined that when the first message is received during the DRX duration, the terminal device is controlled to be in the sleep state for the remaining time period or the first time period. In the following, in combination with the implementation manner 3 and the implementation manner 4, it is defined that when the first message is received before the DRX duration, the control terminal device is in a sleep state for the remaining time period or the first time period.

Implementation form 3: The first message is received in the second time period before the DRX duration.

The above second time period is before the DRX duration, and may include that the second time period may be located in the DRX cycle where the DRX duration is located, or the DRX cycle where the second time period is located and the DRX cycle where the DRX duration is located are different periods.

When the second time period and the DRX duration are in the same DRX cycle, the second time period may be within the starting offset time period of the DRX duration, see FIG. 5, in the DRX cycle 520, the DRX duration may not be located At the beginning of the DRX cycle, that is, the offset time period between the start time of the DRX duration and the start time of the DRX cycle is the above start offset time period 530.

When the DRX cycle where the second time period is located and the DRX cycle where the DRX duration is located are different cycles, that is, the second time period is located in the previous DRX cycle before the DRX period where the DRX duration is located, see FIG. 6, the second time period is located in The DRX cycle 610, and the DRX cycle where the DRX active period is located is the DRX cycle 620, and the DRX cycle 610 is the DRX cycle before the DRX cycle 620.

Implementation form four: The first message is received in the second time period before the DRX duration, and the terminal device is in a sleep state during the second time period.

It should be noted that, for the relative position of the second time period in the fourth implementation form and the DRX duration, reference may be made to the relevant introduction in the above third implementation form, and for the sake of brevity, no further description is provided here.

If the first preset condition in the above implementation form 4 is met when the first message is received, the terminal device is in a sleep state for a second period of time, indicating that the current terminal device may not have a data transmission requirement with the network device Or, the data transmission with the network device has been completed before the second period of time. In the case where the preset condition 4 is met, in order to reduce the power of the terminal device, the terminal device can be controlled by the first message for the remaining time The segment is dormant.

Correspondingly, if the terminal device is active in the second time period, it means that the data that needs to be transmitted in the last DRX cycle (410) is not completed. Therefore, in this case, in order to avoid extending the time when the terminal device communicates with the network device Delay, the terminal device can be controlled to be in the sleep state for a first period of time through the first message.

It should be noted that the second time period in the preset condition 3 or the preset condition 4 may be specified by the protocol, or may be configured by the network device for the terminal device in advance. For example, the network device may use RRC signaling to The terminal device is indicated in a semi-static manner, which is not limited in the embodiments of the present application.

Optionally, the configuration parameters for configuring the second time include at least one of the following parameters: the time position of the second time period in the DRX cycle, the time position of the second time period relative to the DRX duration, and the second time period The length of time, the resource configuration of the tracking reference signal (TRS) in the second time period, the resource configuration of the channel state information reference signal (CSI-RS), and the second time period The resource configuration of the first message (for example, WUS) within. Wherein, the CSI-RS may be a CSI-RS used for beam training.

Optionally, the time position of the above-mentioned second time period at the DRX cycle where the DRX active period is located can be determined by the second time period relative to the start time of the DRX cycle (eg, DRX cycle 520, DRX cycle 620) where the DRX duration is located The offset time period is indicated. Correspondingly, the above-mentioned second time period can also be represented by an offset time period relative to the end time of the last period of the DRX cycle (for example, DRX cycle 510, DRX cycle 610) where the DRX duration is located. This embodiment of the present application does not specifically limit this.

The above four preset conditions may be used separately, or may be used in combination as the first preset condition. For example, the preset condition 4 may be combined with the preset condition 2 as the first preset condition, when the first message is received within the second time period before the DRX duration, and the terminal device is at the second time While in the sleep state in the segment, the DRX active period decision condition only meets the DRX duration timer, which can ensure that the terminal device completes the data transmission with the network device in the last DRX cycle, and the DRX cycle in the DRX active period There is no need to transmit data with the network device. In this case, the first message can be used to control the terminal device to be in the sleep state during the DRX cycle where the DRX is active, that is, the terminal device can be in the sleep state during the entire DRX cycle. In order to maximize the saving of terminal equipment.

The first message in the embodiment of the present application can reuse various indication information used in the current communication protocol to help the terminal device save power, such as the GTS message or the WUS message described above. In the multiplexing mode, the target indication information carried in the GTS message can be used to indicate whether the GTS message follows the method specified in the traditional communication protocol (for example, method 1 or method 2 above) to control whether the terminal device is in the sleep state, or The mode based on the embodiment of the present application (that is, the mode described in FIG. 3) controls the terminal device to be in a sleep state. That is to say, the target indication information carried in the GTS is used to indicate that the GTS message controls the terminal device to be in the sleep state based on the method of the embodiment of the present application.

Optionally, the target indication information may be an index corresponding to the first duration carried in the GTS message.

As mentioned in the second introduction above, when the GTS message is used to control the terminal device to be in the sleep state during the first time period, the corresponding first time period of the first time period may be selected from a plurality of configured time periods, and many Different time durations in each time duration correspond to different indexes. When the GTS message carries the index corresponding to the first time duration, it indicates that the GTS message controls the terminal device to be in the sleep state according to the embodiment of the present application.

In addition to instructing the GTS message to control the terminal device to be in the sleep state based on the method of the embodiment of the present application by means of target indication information, the terminal device may also independently determine whether the GTS message is to control the terminal device to be in the sleep state based on the method of the embodiment of the present application. For example, when the network device configures only GTS parameters for the terminal device through RRC signaling, but does not configure WUS parameters, the terminal device may autonomously determine that the GTS message controls the terminal device to be in a sleep state based on the method of the embodiment of the present application. Of course, the terminal device can also directly default that the GTS message or WUS controls the terminal device to be in the sleep state based on the method of the embodiment of the present application. This embodiment of the present application does not limit this.

In the above method, the terminal device may receive the first message within the DRX duration, that is to say, the first time domain resource transmitting the first message may be located in the same time slot as the second time domain resource detected by the PDCCH. In order to reduce the power consumption of the terminal device, another embodiment of the present application provides a method for transmitting the first message. The method for transmitting the first message according to the embodiment of the present application is described below with reference to FIG. 7. The method shown in FIG. 7 includes steps 710 to 720.

710. The terminal device detects the first message sent by the network device on the first time domain resource, where the first time domain resource and the second time domain resource occupied by the PDCCH detection are located in the same time slot.

Optionally, the first time domain resource and the second time domain resource at least partially overlap in the above time slot, that is, the first time domain resource completely overlaps with the second time domain resource, or the second time domain resource and the first time domain resource Resources partially overlap. For example, the first time domain and the second time domain resources have partial symbols.

When the second time domain resource partially overlaps the first time domain resource, the second time domain resource may include the first time domain resource, or the first time domain resource is a subset of the second time domain resource.

Optionally, the first time domain resource and the second time domain resource may be located in the same time slot through a time threshold. For example, the first time domain resource and the second time domain resource satisfy any one of the following second preset conditions: the start symbol of the first time domain resource and the start of the second time domain resource The time difference between the symbols is less than or equal to the time threshold, and the time difference between the end symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to the time threshold, the The time difference between the end symbol and the start symbol of the second time domain resource is less than or equal to the time threshold, and the difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource The time difference is less than or equal to the time threshold.

The time threshold under different conditions in the above second preset condition may be different, or may be the same, which is not limited in this embodiment of the present application.

The above time threshold may be in units of the number of symbols. For example, when the time threshold is 2, it may refer to 2 symbols. The time threshold can also be expressed in absolute time. For example, when the time threshold is 2, it can refer to 2 milliseconds. The embodiment of the present application does not limit the play.

It should be noted that the above time threshold may be specified by a protocol, or may be configured by the network device for the terminal device in advance. For example, the network device may indicate the terminal device in a semi-static manner through RRC signaling. This is not limited.

The first time domain resource and the second time domain resource may be configured in the following manner and located in the same time slot. The second time domain resource detected by the PDCCH may be configured for the terminal device in a manner specified in the communication protocol. For example, the network device configures PDCCH configuration parameters for the terminal device by sending a system message or an RRC message. The PDCCH configuration parameters include a control resource set (CORESET), a search space (search space), etc., where the above second time domain resource is composed of CORESET and The search space is decided together.

Optionally, if the configuration parameters include CORESET ID, the symbol length of the PDCCH resource, the search space ID and the search space associated CORESET ID, the time slot where the PDCCH resource is located and the starting symbol in the time slot, the search space type and the search space associated DCI format. Then, the time domain resource for PDCCH detection may be determined according to all the CORESETs in the above configuration parameters and the time slot where the PDCCH resources of all search spaces are located, the starting symbol in the time slot, and the symbol length.

Correspondingly, the first time domain resource for detecting the first message can be determined by one or more search spaces in the above configuration parameters, that is, the first message is carried by one or more DCI formats, each carrying the The DCI format can be associated with one or more of the above search spaces, and then be associated with CORESET through the search space, thereby obtaining the time domain resource detected by the first message. In this case, the first time domain resource is a subset of the second time domain resource.

It should be noted that the above-mentioned first message may be carried by the PDCCH, or may be transmitted separately, or carried by other signaling, which is not limited in this embodiment of the present application. If the first message is not carried by the PDCCH, the time domain resource (that is, the first time domain) transmitting the first message and the time domain resource (second time domain resource) occupied by the PDCCH detection can also satisfy the above positional relationship, that is, the first message The time domain resource and the second time domain resource are located in the same time slot. Specifically, the positional relationship between the first time domain resource and the second time domain resource may be determined by the above time threshold. For example, the first time domain resource and the second time domain resource satisfy any one of the following second preset conditions: the start symbol of the first time domain resource and the start of the second time domain resource The time difference between the symbols is less than or equal to the time threshold, and the time difference between the end symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to the time threshold, the The time difference between the end symbol and the start symbol of the second time domain resource is less than or equal to the time threshold, and the difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource The time difference is less than or equal to the time threshold. Accordingly, after detecting the first message on the first time domain resource, the terminal device may not perform PDCCH detection on the second time domain resource. Among them, the specific introduction of the time threshold and the like can be referred to above, and for the sake of brevity, they will not be repeated here.

720. If the first message is detected on the first time domain resource, the terminal device does not detect the PDCCH on the second time domain resource.

In the embodiment of the present application, when the first time domain resource and the second time domain resource are located in the same time slot, after detecting the first message on the first time domain resource, the terminal device may no longer Detect the PDCCH on the second resource and directly enter the sleep state to save power.

The above method shown in FIG. 3 can be used in combination with the method shown in FIG. 7, and the above method shown in FIG. 3 can also be used separately from the method shown in FIG. 7, which is not limited in the embodiments of the present application. In the process of separate use, the terminal device shown in FIG. 3 may enter a sleep state at any time slot after receiving the first message. Correspondingly, when the method shown in FIG. 7 is used alone, it can be used in combination with the DRX mechanism specified in the current agreement, or it can be completely separated from the DRX mechanism specified in the current agreement, which is not limited in the embodiments of the present application. When the above method shown in FIG. 3 can be used in combination with the method shown in FIG. 7, after the terminal device receives the first message according to the method shown in FIG. 3, if the first time domain resource and the second time domain resource are In the same time slot, the terminal device can enter the sleep state in the time slot and stay in the sleep state for the first time period or the remaining time period.

The method for transmitting the first message of the embodiment of the present application is described in detail above with reference to FIGS. 1 to 7, and the device of the embodiment of the present application is described in detail below with reference to FIGS. 8 to 11. It should be understood that the apparatus shown in FIGS. 8 to 11 can implement one or more steps in the method flow shown in FIG. 3 or FIG. 6. In order to avoid repetition, no more details will be given here.

8 is a schematic diagram of a communication device according to an embodiment of the present application. The communication device 800 shown in FIG. 8 includes a receiving module 810 and a processing module 820.

In a possible implementation, the communication device 800 may be used to perform the method steps performed by the terminal device in the method shown in FIG. 3, that is, the receiving module 810 performs step 320, and the processing unit 820 performs steps 330 and 340. The communication device 800 may also be used to perform the method steps performed by the terminal device in the method shown in FIG. 7, that is, the receiving module 810 performs step 710, and the processing module 820 performs step 720. For the detailed introduction of the method steps, please refer to the related introduction of the foregoing method embodiments, which will not be repeated here.

In an alternative embodiment, the receiving module 810 may be the transceiver 940 of the terminal device 900, and the processing module 820 may be the processor 920 of the terminal device 900. The terminal device 900 may further include an input/output interface 930 and a memory 910, as shown in FIG. 9.

9 is a schematic block diagram of a terminal device according to another embodiment of the present application. The terminal device 900 shown in FIG. 9 may include: a memory 910, a processor 920, an input/output interface 930, and a transceiver 940. Among them, the memory 910, the processor 920, the input/output interface 930 and the transceiver 940 are connected through an internal connection path, the memory 910 is used to store instructions, and the processor 920 is used to execute the instructions stored in the memory 920 to control the input/output The output interface 930 receives input data and information, outputs data such as operation results, and controls the transceiver 940 to send signals.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 920 or an instruction in the form of software. The method disclosed in conjunction with the embodiments of the present application may be directly implemented and completed by a hardware processor, or may be implemented and completed by a combination of hardware and software modules in the processor. The software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, and a register. The storage medium is located in the memory 910, and the processor 920 reads the information in the memory 910 and completes the steps of the above method in combination with its hardware. In order to avoid repetition, they are not described in detail here.

10 is a schematic diagram of a communication device according to an embodiment of the present application. The communication device 1000 shown in FIG. 10 includes a processing module 1010 and a sending module 1020.

In a possible implementation, the communication device 1000 may be used to perform the method steps performed by the network device in the method shown in FIG. 3, that is, the processing module 1010 performs step 310, and the sending module 1020 performs step 320. The communication device 1000 may also be used to perform the method steps performed by the network device in the method shown in FIG. 7, that is, the sending module 1020 performs step 720. For the detailed introduction of the method steps, please refer to the related introduction of the foregoing method embodiments, which will not be repeated here.

In an alternative embodiment, the processing module 1010 may be a processor 1120 in the network device 1100, the sending module 1020 may be a transceiver 1140 in the network device 1100, and the network device 1100 may further include input/ The output interface 1130 and the memory 1110 are shown in FIG. 11.

11 is a schematic block diagram of a network device according to another embodiment of the present application. The network device 1100 shown in FIG. 11 may include: a memory 1110, a processor 1120, an input/output interface 1130, and a transceiver 1140. Among them, the memory 1110, the processor 1120, the input/output interface 1130 and the transceiver 1140 are connected through an internal connection path, the memory 1110 is used to store instructions, and the processor 1120 is used to execute the instructions stored in the memory 1120 to control the input/output The output interface 1130 receives input data and information, outputs data such as operation results, and controls the transceiver 1140 to send signals.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1120 or an instruction in the form of software. The method disclosed in conjunction with the embodiments of the present application may be directly implemented and completed by a hardware processor, or may be implemented and completed by a combination of hardware and software modules in the processor. The software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, and a register. The storage medium is located in the memory 1110, and the processor 1120 reads the information in the memory 1110, and completes the steps of the above method in combination with its hardware. In order to avoid repetition, they are not described in detail here.

It should be understood that in the embodiment of the present application, the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), and dedicated integration Circuit (application specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should be understood that in the embodiments of the present application, the transceiver is also called a communication interface, and uses a transceiver device such as but not limited to a transceiver to implement a communication device (for example, a terminal device or a network device) with other devices or a communication network Communication.

It should also be understood that, in the embodiments of the present application, the memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the processor may also include non-volatile random access memory. For example, the processor may also store device type information.

It should be understood that in the embodiment of the present application, “B corresponding to A” means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B based on A does not mean determining B based on A alone, and B may also be determined based on A and/or other information.

It should be understood that the term "and/or" in this article is merely an association relationship describing the associated objects, and indicates that there may be three relationships, for example, A and/or B, which may indicate: A exists alone, and A and B exist at the same time. There are three cases of B alone. In addition, the character “/” in this article generally indicates that the related objects before and after it are in an “or” relationship. In addition, "at least one of at least one of at least one of" means a combination of any number of items in the listed items, for example, "at least one of at least one of at least one of at least one of A, B, and C can mean: alone There are six situations: A, B, C, A and B, B and C, and A, B, and C.

It should be understood that in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic, and should not be applied to the embodiments of the present application. The implementation process constitutes no limitation. It should also be understood that one or more of the steps may be performed in the method steps. For example, step 330 and step 340 may be executed, or only one of the steps may be executed, which is not specifically limited in this embodiment of the present application.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, digital video disc (DVD)) or semiconductor media (eg, solid state disk (SSD) )Wait.

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (22)

1. A communication method, characterized in that it includes:

   The terminal device receives a first message sent by the network device, where the first message is used to instruct the terminal device to enter a sleep state during the discontinuous reception DRX active period;

   If the first preset condition is met when receiving the first message, the terminal device is in the sleep state for the remaining time period of the DRX cycle where the DRX active period is located; and/or, if the first message is received When the message does not satisfy the first preset condition, the terminal device is in the sleep state within a first period of time after receiving the first message.
2. The method according to claim 1, wherein the first preset condition includes any one of the following conditions:

   Only the DRX duration timer is met in the determination condition of the DRX active period; and

   The first message is received in a second time period before the DRX duration, and the terminal device is in a sleep state during the second time period.
3. The method according to claim 1 or 2, wherein the first preset condition is that only the DRX duration timer is met in the determination condition of the DRX active period, and the terminal device receives the The first message, including:

   The terminal device receives the first message on a first time domain resource, the first time domain resource and the second time domain resource occupied by the physical downlink control channel PDCCH detection are located in the same time slot, and the terminal device is not located Detecting the PDCCH on the second time domain resource.
4. The method of claim 3, wherein the first time domain resource and the second time domain resource at least partially overlap.
5. The method according to claim 3 or 4, wherein the first time domain resource and the second time domain resource satisfy at least one of the following second preset conditions:

   The first time domain resource is a subset of the second time domain resource,

   A time difference between the start symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to a time threshold,

   The time difference between the end symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold,

   The time difference between the end symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to the time threshold, and

   The time difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold.
6. A communication method, characterized in that it includes:

   The network device generates a first message, where the first message is used to instruct the terminal device to enter the sleep state during the discontinuous reception DRX active period;

   The network device sends the first message to the terminal device, where if the first preset condition is met when receiving the first message, the first message indicates the DRX where the terminal device is located during the DRX active period In the sleep state for the remaining period of the period, if the first preset condition is not met when receiving the first message, the first message indicates that the terminal device has received the first message Be in the sleep state within the first time period.
7. The method of claim 6, wherein the first preset condition includes at least one of the following conditions:

   Only the DRX duration timer is met in the determination condition of the DRX active period; and

   The first message is received in a second time period before the DRX duration, and the terminal device is in a sleep state during the second time period.
8. The method according to claim 6 or 7, wherein the first preset condition is that only the DRX duration timer is met in the determination condition of the DRX active period, and the network device sends a request to the terminal device Sending the first message includes:

   The network device sends the first message on a first time domain resource, where the first time domain resource and the second time domain resource occupied by the physical downlink control channel PDCCH detection are located in the same time slot.
9. The method of claim 8, wherein the first time domain resource and the second time domain resource at least partially overlap.
10. The method according to claim 8 or 9, wherein the first time domain resource and the second time domain resource satisfy at least one of the following second preset conditions:

    The first time domain resource is a subset of the second time domain resource,

    A time difference between the start symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to a time threshold,

    The time difference between the end symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold,

    The time difference between the end symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to the time threshold, and

    The time difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold.
11. A communication device, characterized in that it includes:

    A receiving module, configured to receive a first message sent by a network device, where the first message is used to instruct the terminal device to enter a sleep state during the discontinuous reception DRX active period;

    The processing module is configured to, if the first preset condition is satisfied when receiving the first message, control the terminal device to be in the sleep state for the remaining time period of the DRX cycle in which the DRX active period is located; and/or, If the first preset condition is not satisfied when receiving the first message, it is used to control the terminal device to be in the sleep state within a first period of time after receiving the first message.
12. The communication device according to claim 11, wherein the first preset condition includes at least one of the following conditions:

    Only the DRX duration timer is met in the determination condition of the DRX active period; and

    The first message is received in a second time period before the DRX duration, and the terminal device is in a sleep state during the second time period.
13. The communication device according to claim 11 or 12, wherein the first preset condition is that only the DRX duration timer is met in the determination condition of the DRX active period, and the receiving module is specifically configured to:

    Receiving the first message on a first time domain resource, the first time domain resource and the second time domain resource occupied by the physical downlink control channel PDCCH detection are located in the same time slot, and the terminal device is not in the second time The PDCCH is detected on the domain resource.
14. The communication device according to claim 13, wherein the first time domain resource and the second time domain resource at least partially overlap.
15. The communication device according to claim 13 or 14, wherein the first time domain resource and the second time domain resource satisfy at least one of the following second preset conditions:

    The first time domain resource is a subset of the second time domain resource,

    A time difference between the start symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to a time threshold,

    The time difference between the end symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold,

    The time difference between the end symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to the time threshold, and

    The time difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold.
16. A communication device, characterized in that it includes:

    The processing module is configured to generate a first message, and the first message is used to instruct the terminal device to enter a sleep state during the discontinuous reception DRX active period;

    A sending module, configured to send the first message to the terminal device, wherein, if the first preset condition is met when receiving the first message, the first message indicates that the terminal device is in the DRX active period In the dormant state during the remaining time period of the DRX cycle in which the first preset condition is not met when receiving the first message, the first message indicates that the terminal device receives the first Be in the sleep state for the first time period after the message.
17. The communication device according to claim 16, wherein the first preset condition is any one of the following conditions:

    Only the DRX duration timer is met in the determination condition of the DRX active period; and

    The first message is received in a second time period before the DRX duration, and the terminal device is in a sleep state during the second time period.
18. The communication device according to claim 16 or 17, wherein the first preset condition is that only the DRX duration timer is met in the determination condition of the DRX active period, and the network device sends to the terminal device The first message includes:

    The network device sends the first message on a first time domain resource, where the first time domain resource and the second time domain resource occupied by PDCCH detection are in the same time slot.
19. The communication device according to claim 18, wherein the first time domain resource and the second time domain resource at least partially overlap.
20. The communication device according to claim 18 or 19, wherein the first time domain resource and the second time domain resource satisfy at least one of the following second preset conditions:

    The first time domain resource is a subset of the second time domain resource,

    A time difference between the start symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to a time threshold,

    The time difference between the end symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold,

    The time difference between the end symbol of the first time domain resource and the start symbol of the second time domain resource is less than or equal to the time threshold, and

    The time difference between the start symbol of the first time domain resource and the end symbol of the second time domain resource is less than or equal to a time threshold.
21. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions that cause a communication device to perform the method according to any one of claims 1 to 10.
22. A communication device, characterized in that the device includes a processor and a storage medium, and the storage medium stores instructions, and when the instructions are executed by the processor, the processor executes the instructions according to claims 1 to 10. The method of any one.

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