CN117042147A

CN117042147A - Communication method, communication device and communication system based on DRX configuration

Info

Publication number: CN117042147A
Application number: CN202210951229.8A
Authority: CN
Inventors: 徐瑞; 秦熠; 陈二凯; 曹佑龙
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-27
Filing date: 2022-08-09
Publication date: 2023-11-10

Abstract

Communication method, communication device and communication system based on DRX configuration. The method comprises the following steps: determining an active period of DRX, a start time of the active period being related to a period of data; and monitoring PDCCH in the active period of the DRX. According to the scheme, the terminal determines the DRX activation period of the terminal according to the period of the data, so that the DRX activation period of the terminal can be well matched with the period of the data, delay of receiving or sending the data by the terminal can be reduced, and user experience is improved.

Description

Communication method, communication device and communication system based on DRX configuration

The present application claims priority from chinese patent application filed in the intellectual property office of the people's republic of China, application number 202210453381.3, entitled "communication method based on DRX configuration, communication device and communication system" at day 4 and 27 of 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The embodiment of the application relates to the technical field of wireless communication, in particular to a communication method, a communication device and a communication system based on DRX configuration.

Background

In recent years, with the continuous development of the fifth generation (5th generation,5G) communication, the data transmission delay is continuously reduced, the transmission capacity is larger and larger, and the 5G communication gradually permeates some multimedia services with strong real-time performance and large data capacity requirement, such as video transmission, cloud Gaming (CG), extended reality (XR), and the like, wherein the XR includes Virtual Reality (VR) and Augmented Reality (AR).

With the rapid increase of communication transmission rate, real-time video transmission service has gradually become one of core services in current networks. Continuous progress and perfection of the augmented reality technology has also led to vigorous development of related industries. Nowadays, VR technology is one of XR, and has entered into various fields related to people's production and life, such as education, entertainment, military, medical treatment, environmental protection, transportation, public health, etc. Compared with the traditional video service, VR has the advantages of multiple visual angles, strong interactivity and the like, and provides a brand new visual experience for users.

With the generation of the above various services, the requirements on the transmission delay of the service data are higher and higher. Therefore, how to reduce the delay of receiving or transmitting data by the terminal, thereby improving the user experience, and requiring continuous attention.

Disclosure of Invention

The application provides a communication method, a communication device and a communication system, which are used for reducing delay of receiving or transmitting data by a terminal so as to improve user experience.

In a first aspect, an embodiment of the present application provides a communication method, where the method may be performed by a terminal or a module applied to the terminal, and may also be implemented by a logic module or software capable of implementing all or part of the functions of the terminal. Taking the terminal to execute the method as an example, the method comprises the following steps: determining an active period of discontinuous reception (discontinuous reception, DRX), a start time of the active period being related to a period of data; a physical downlink control channel (physical downlink control channel, PDCCH) is monitored during an active period of the DRX.

According to the scheme, the terminal determines the DRX activation period of the terminal according to the period of the data, so that the DRX activation period of the terminal can be well matched with the period of the data, delay of receiving or sending the data by the terminal can be reduced, and user experience is improved.

In one possible implementation, configuration information from a radio access network device is received; according to the configuration information, an active period of the DRX is determined based on the period of the data.

According to the scheme, the wireless access network equipment configures the terminal to determine the activation period of the DRX based on the period of the data, so that the activation period of the DRX can be accurately determined, and accurate matching between the activation period of the DRX of the terminal and the period of the data can be realized.

In one possible implementation, the start time of the activation period satisfies:

(a1*10+a2)modulo a3＝f1(a4)modulo a3+a5；

wherein a1 represents a system frame number corresponding to the start time, a2 represents a subframe number corresponding to the start time, f1 (a 4) represents a function related to a4, and a5 is configured by the radio access network device, and modulo is represented by modulo operation;

the a3 and a4 satisfy: a3 =int (T), a4=t-int (T), which represents a rounding operation, which is the period of the data.

According to the scheme, the DRX activation period can be accurately calculated, the calculation method is simple, the terminal performance is improved, and the existing protocol is changed slightly.

(b1*10+b2)modulo b3＝f2(b3,b4)modulo b3+b5；

wherein b1 represents a system frame number corresponding to the start time, b2 represents a subframe number corresponding to the start time, f2 (b 3, b 4) represents a function related to b3, b4, and b5 is configured by the radio access network device, and modulo is represented by modulo;

the greatest common divisor of b3 and b4 is 1, and satisfies: b3/b4=t, where b3 and b4 are positive integers, and T is the period of the data.

According to the scheme, the DRX activation period can be accurately calculated, the calculation method is simple, and the terminal performance is improved.

(c1*10+c2)modulo c3＝f3(T)modulo c3+c5；

wherein c1 represents a system frame number corresponding to the start time, c2 represents a subframe number corresponding to the start time, f3 (T) represents a function related to T, and c5 is configured by the radio access network device, and modulo is represented by modulo;

the greatest common divisor of c3 and c4 is 1, and satisfies: c3/c4=t, where c3 and c4 are positive integers, and T is the period of the data.

int((d1*10+d2)modulo d3)＝int(d4 modulo d3)；

Wherein d1 represents a system frame number corresponding to the start time, d2 represents a subframe number corresponding to the start time, d3=t, d3 represents a duration of a DRX cycle, T is a cycle of the data, d4 represents an offset subframe amount in the DRX cycle, module represents a modulo operation, and int represents a rounding operation.

In a possible implementation, the start time of the active period is also related to the offset slot amount in the DRX cycle=int (((d1×10+d2-d 4) module d 3) ×d5);

where d5 represents the number of slots within one subframe.

int(((e1*10+e2)*e3+e4)modulo e5)＝int((e6*e3+e7)modulo e5)；

wherein e1 represents a system frame number corresponding to the start time, e2 represents a subframe number corresponding to the start time, e3 represents a number of slots included in one subframe, e4 represents an e4 th slot in one subframe, e5=te3, T is a period of the data, e6 represents an offset subframe amount in the DRX period, e7 represents an offset slot amount in one subframe, (e 6×e3+e7) represents a total offset slot amount from a start position of the DRX period, modulo represents a modulo operation, and int represents a rounding operation.

f1*f2+f3＝int[(f4+i*f5)*f2/10]modulo(1024*f2)；

wherein f1 represents a system frame number corresponding to the start time, f2 represents a number of time slots included in a system frame, f3 represents a time slot number corresponding to the start time, f4 represents an offset subframe amount in a DRX cycle, f5 represents a duration of the DRX cycle, f5=t, T is a cycle of the data, i represents an i-th DRX cycle or an active period of DRX, modular represents a modulo operation, and int represents a rounding operation.

(g1*g2*g3)+(g4*g3)+g5＝int[(g6*g2*g3+g7*g3+g8)+i*g9]modulo(1024*g2*g3)；

wherein g1 represents a system frame number corresponding to the starting time, g2 represents a time slot number contained in a system frame, g3 represents a symbol number contained in a time slot, g4 represents a subframe number corresponding to the starting time, g5 represents a symbol number corresponding to the starting time, g6 represents an offset subframe amount in a DRX period, g7 represents an offset time slot amount in the DRX period, g8 represents an offset symbol amount in the DRX period, g9 represents a duration of the DRX period, g9=T, T is a period of the data, i represents an i-th DRX period or an active period of DRX, modulo operation, and int represents rounding operation.

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

wherein h 1 represents a system frame number corresponding to the start time, h2 represents a time slot number corresponding to the start time, h3 represents an offset subframe amount in a DRX cycle, h4 represents a duration of the DRX cycle, h4=t, T is a cycle of the data, i represents an ith DRX cycle or an active period of DRX, modular represents a modulo operation, and int represents a rounding operation.

In one possible implementation, the periodicity of the data is configured by the radio access network device.

According to the scheme, the wireless access network equipment configures the period of the data for the terminal, so that the consistency of the period of the data used by the terminal and the wireless access network equipment can be ensured, the period of the data can be accurately configured for the terminal, and the method is beneficial to accurately configuring the activation period of DRX.

In one possible implementation, the period of the data is measured by the terminal.

According to the scheme, the terminal measures the period of the data, so that the period of the data can be accurately determined, and the accurate configuration of the DRX activation period is facilitated.

In one possible implementation, the periodicity of the data is configured by the application server.

According to the scheme, the application server configures the period of the data for the terminal, so that the period of the data can be accurately configured for the terminal, and the DRX activation period can be accurately configured.

In a possible implementation, the PDCCH carries information that schedules the data.

In one possible implementation, the period T of the data is a non-integer.

In a second aspect, an embodiment of the present application provides a communication method, where the method may be performed by a radio access network device or a module applied to the radio access network device, and may also be implemented by a logic module or software capable of implementing all or part of the functions of the radio access network device. Taking the radio access network device to execute the method as an example, the method comprises the following steps: the method includes transmitting configuration information to the terminal, the configuration information being used to configure a start time of an active period of the DRX, determined based on a period of the data.

According to the scheme, the wireless access network equipment configures the terminal to determine the DRX activation period of the terminal according to the period of the data, so that the DRX activation period of the terminal can be well matched with the period of the data, delay of receiving or sending the data by the terminal can be reduced, and user experience is facilitated.

In one possible implementation, control information is sent to the terminal on the PDCCH during the active period of the DRX.

In a possible implementation, the control information is used to schedule the data.

(a1*10+a2)modulo a3＝f1(a4)modulo a3+a5；

the a3 and a4 satisfy:

a3 =int (T), a4=t-int (T), which represents a rounding operation, which is the period of the data.

(b1*10+b2)modulo b3＝f2(b3,b4)modulo b3+b5；

(c1*10+c2)modulo c3＝f3(T)modulo c3+c5；

int((d1*10+d2)modulo d3)＝int(d4 modulo d3)；

where d5 represents the number of slots within one subframe.

int(((e1*10+e2)*e3+e4)modulo e5)＝int((e6*e3+e7)modulo e5)；

f1*f2+f3＝int[(f4+i*f5)*f2/10]modulo(1024*f2)；

(g1*g2*g3)+(g4*g3)+g5＝int[(g6*g2*g3+g7*g3+g8)+i*g9]modulo(1024*g2*g3)；

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

In a possible implementation, the configuration information is also used to configure the period of the data.

According to the scheme, the configuration information is used for configuring the terminal to determine the activation period of the DRX based on the period of the data and is also used for configuring the period of the data, instead of respectively configuring the terminal to determine the activation period of the DRX and the period of the configuration data based on the period of the data through the two configuration information, so that signaling overhead can be reduced, and the performance of the terminal can be improved.

In a possible implementation, information for configuring the period of the data is sent to the terminal.

In one possible implementation, the period T of the data is a non-integer.

In a third aspect, an embodiment of the present application provides a communication device, where the device may be a terminal, a module for a terminal, or a logic module or software capable of implementing all or part of a terminal function. The apparatus has the function of implementing any implementation method of the first aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, where the apparatus may be a radio access network device, a module for a radio access network device, or a logic module or software capable of implementing all or part of a function of the radio access network device. The apparatus has the function of implementing any implementation method of the second aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, including a processor and a memory; the memory is configured to store computer instructions that, when executed by the apparatus, cause the apparatus to perform any of the implementation methods of the first to second aspects.

In a sixth aspect, embodiments of the present application provide a communications device comprising means for performing the steps of any of the implementing methods of the first to second aspects described above.

In a seventh aspect, an embodiment of the present application provides a communication device, including a processor and an interface circuit, where the processor is configured to communicate with other devices through the interface circuit, and perform any implementation method of the first aspect to the second aspect. The processor includes one or more.

In an eighth aspect, an embodiment of the present application provides a communication device, including a processor coupled to a memory, the processor configured to invoke a program stored in the memory, to perform any implementation method of the first aspect to the second aspect. The memory may be located within the device or may be located external to the device. And the processor may be one or more.

In a ninth aspect, embodiments of the present application also provide a computer readable storage medium having stored therein a computer program or instructions which, when run on a communications device, cause any implementation of the methods of the first to second aspects described above to be performed.

In a tenth aspect, embodiments of the present application also provide a computer program product comprising a computer program or instructions which, when executed by a communication device, cause any of the implementation methods of the first to second aspects described above to be performed.

In an eleventh aspect, an embodiment of the present application further provides a chip system, including: a processor configured to perform any implementation method of the first aspect to the second aspect.

In a twelfth aspect, an embodiment of the present application further provides a communication system, which includes a communication device for performing any implementation method of the first aspect and a communication device for performing any implementation method of the second aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a diagram illustrating a period when XR service data arrives at a base station;

fig. 3 is an exemplary diagram of a DRX cycle;

fig. 4 is an exemplary diagram of a DRX long cycle and a DRX short cycle;

fig. 5 is an exemplary diagram of DRX configuration of XR traffic data;

fig. 6 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 7 is an example diagram of an active period of DRX;

fig. 8 is a further exemplary diagram of an active period of DRX;

fig. 9 is a further exemplary diagram of an active period of DRX;

fig. 10 is yet another exemplary diagram of an active period of DRX;

fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application;

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

Detailed Description

Fig. 1 is a schematic architecture diagram of a communication system to which an embodiment of the present application is applied. The communication system 1000 comprises a radio access network 100 and a core network 200, optionally the communication system 1000 may also comprise the internet 300. The radio access network 100 may include at least one radio access network device (e.g., 110a and 110b in fig. 1) and may also include at least one terminal (e.g., 120a-120j in fig. 1). The terminal is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or may integrate the functions of the core network device and the logic functions of the radio access network device on the same physical device, or may integrate the functions of part of the core network device and part of the radio access network device on one physical device. The terminals and the radio access network device may be connected to each other by wired or wireless means. Fig. 1 is only a schematic diagram, and other network devices may be further included in the communication system, for example, a wireless relay device and a wireless backhaul device may also be included, which are not shown in fig. 1.

The radio access network device may be a base station (base station), an evolved nodeB (eNodeB), a transmission and reception point (transmission reception point, TRP), a next generation base station (next generation nodeB, gNB) in a 5G mobile communication system, a next generation base station in a sixth generation (6th generation,6G) mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc.; the present application may also be a module or unit that performs a function of a base station part, for example, a Central Unit (CU) or a Distributed Unit (DU). The CU can complete the functions of a radio resource control protocol and a packet data convergence layer protocol (packet data convergence protocol, PDCP) of the base station and can also complete the functions of a service data adaptation protocol (service data adaptation protocol, SDAP); the DU performs the functions of the radio link control layer and the medium access control (medium access control, MAC) layer of the base station, and may also perform the functions of a part of the physical layer or the entire physical layer, and for a detailed description of the above protocol layers, reference may be made to the relevant technical specifications of the third generation partnership project (3rd generation partnership project,3GPP). The radio access network device may be a macro base station (e.g. 110a in fig. 1), a micro base station or an indoor station (e.g. 110b in fig. 1), a relay node or a donor node, etc. All or part of the functionality of the radio access network device in the present application may also be implemented by software functions running on hardware or by virtualized functions instantiated on a platform, such as a cloud platform. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the wireless access network equipment. In an embodiment of the present application, a base station is described as an example of a radio access network device.

A terminal may also be referred to as a terminal device, user Equipment (UE), mobile station, mobile terminal, etc. The terminal may be widely applied to various scenes, for example, device-to-device (D2D), vehicle-to-device (vehicle to everything, V2X) communication, machine-type communication (MTC), internet of things (internet of things, IOT), virtual reality, augmented reality, industrial control, autopilot, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, and the like. The terminal can be a mobile phone, a tablet personal computer, a computer with a wireless receiving and transmitting function, a wearable device, a vehicle, an unmanned aerial vehicle, a helicopter, an airplane, a ship, a robot, a mechanical arm, intelligent household equipment and the like. All or part of the functions of the terminal in the present application may also be implemented by software functions running on hardware or by virtualized functions instantiated on a platform, such as a cloud platform. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal.

The base station and the terminal may be fixed in position or movable. Base stations and terminals may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. The embodiment of the application does not limit the application scenes of the base station and the terminal.

The roles of base station and terminal may be relative, e.g., helicopter or drone 120i in fig. 1 may be configured as a mobile base station, terminal 120i being the base station for those terminals 120j that access radio access network 100 through 120 i; but for base station 110a 120i is a terminal, i.e., communication between 110a and 120i is via a wireless air interface protocol. Of course, communication between 110a and 120i may be performed via an interface protocol between base stations, and in this case, 120i is also a base station with respect to 110 a. Thus, both the base station and the terminal may be collectively referred to as a communication device, 110a and 110b in fig. 1 may be referred to as a communication device having base station functionality, and 120a-120j in fig. 1 may be referred to as a communication device having terminal functionality.

Communication can be carried out between the base station and the terminal, between the base station and between the terminal and the terminal through the authorized spectrum, communication can be carried out through the unlicensed spectrum, and communication can also be carried out through the authorized spectrum and the unlicensed spectrum at the same time; communication may be performed through a frequency spectrum of 6 gigahertz (GHz) or less, communication may be performed through a frequency spectrum of 6GHz or more, and communication may be performed using a frequency spectrum of 6GHz or less and a frequency spectrum of 6GHz or more simultaneously. The embodiment of the application does not limit the spectrum resources used by the wireless communication.

In the embodiment of the present application, the functions of the base station may be performed by a module (such as a chip) in the base station, or may be performed by a control subsystem including the functions of the base station. The control subsystem comprising the base station function can be a control center in the application scenarios of smart power grids, industrial control, intelligent transportation, smart cities and the like. The functions of the terminal may be performed by a module (e.g., a chip or a modem) in the terminal, or by a device including the functions of the terminal.

In the application, a base station sends a downlink signal or downlink information to a terminal, and the downlink information is borne on a downlink channel; the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on an uplink channel. In order for a terminal to communicate with a base station, it is necessary to establish a radio connection with a cell controlled by the base station. The cell with which the terminal has established a radio connection is called the serving cell of the terminal. The terminal may also be interfered by signals from neighboring cells when communicating with the serving cell.

In an embodiment of the present application, the time domain symbol may be an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, or may be a discrete fourier transform spread OFDM (Discrete Fourier Transform-spread-OFDM, DFT-s-OFDM) symbol. Symbols in embodiments of the present application refer to time domain symbols unless otherwise specified.

It should be understood that in the embodiments of the present application, the physical downlink shared channel (physical downlink shared channel, PDSCH), the physical downlink control channel (physical downlink control channel, PDCCH), the physical uplink shared channel (physical uplink shared channel, PUSCH) and the physical broadcast channel (physical broadcast channel, PBCH) are merely examples of downlink data channels, downlink control channels, uplink data channels and broadcast channels, and that in different systems and different scenarios, the data channels, control channels and broadcast channels may have different names, and the embodiments of the present application are not limited thereto.

In addition to smartphones, there is an increasing desire to enhance XR experience through terminals such as head mounted displays (head mounted display, HMD) or smart glasses (e.g. VR glasses, AR glasses). Unlike smart phones, head mounted displays and smart glasses require more consideration for power consumption. In particular, smart glasses have very small external dimensions and are expected to be worn for a long time, and the control of power consumption is significantly higher than that of smart phones. In a cloud game, the terminal may be a smart phone or tablet. For a long cloud gaming experience, power consumption of the device and battery life are also important aspects to consider. Therefore, as XR devices become lighter, power consumption of the devices has become a major issue in current research, while guaranteeing user experience.

Fig. 2 is a diagram illustrating a period when XR service data arrives at a base station. In this example, the frame rate of the traffic data is 60 Frames Per Second (FPS), and thus the period for the traffic data to reach the base station is 1/60 seconds, which is approximately equal to 16.67ms. I.e. the base station receives uplink traffic data from the terminal every 16.67ms or downlink traffic data from the application server.

For XR transport traffic, the generation and arrival of data is not continuous. On the terminal side, it is advantageous to receive uplink grants or downlink data if the downlink control information (downlink control information, DCI) of the base station is intercepted every time slot from the delay point of view, but at the same time it also comes with a cost in power consumption for the terminal. In order to reduce the power consumption of the terminal, when there is no data transmission, the power consumption can be reduced by stopping receiving the PDCCH (stopping the PDCCH blind detection at the moment), so that the service time of the battery is prolonged. Thus, discontinuous reception (discontinuous reception, DRX) techniques are introduced for power saving (power save).

In the DRX mechanism, the base station configures a DRX cycle (DRX cycle) for the terminal. Fig. 3 is an exemplary diagram of a DRX cycle. One DRX cycle includes an active period (On Duration) and a discontinuous reception period (opportunity for DRX). Wherein the activation period is also called an activation period, a continuous reception period or a continuous reception period, etc. In the activation period, the terminal normally monitors the PDCCH, and in the discontinuous reception period, the terminal has an opportunity to enter a dormant state and does not monitor the PDCCH so as to reduce power consumption. Note that the terminal in the discontinuous reception period does not listen to the PDCCH, but may receive data from other physical channels, such as a physical downlink shared channel (physical downlinksharedchannel, PDSCH), an acknowledgement signal (ACK), and the like.

The DRX cycle is selected to take into account the balance between battery savings and delay. In one aspect, a DRX long cycle is beneficial for extending battery life of a terminal. On the other hand, a shorter DRX cycle is beneficial for faster response when there is new data transmission. To meet the above requirements, a terminal may be configured with multiple DRX cycles, such as two DRX cycles: DRX long Cycle (longDRX-Cycle) and DRX short Cycle (shortDRX-Cycle).

Fig. 4 is an exemplary diagram of a DRX long cycle and a DRX short cycle. In this example, the length of the active period of the DRX long cycle is the same as the length of the active period of the DRX short cycle, and the size of the DRX long cycle is 2 times the size of the DRX short cycle. When a DRX long cycle and a DRX short cycle are configured for a terminal, the terminal cannot use both DRX long cycles or DRX short cycles at any time.

The DRX cycle (including the DRX long cycle and the DRX short cycle) of the terminal is configured by the base station. For example, the base station configures a DRX cycle for the terminal through a DRX-Config cell in radio resource control (Radio Resource Control, RRC) signaling.

The DRX-Config may include the following parameters:

1)、drx-LongCycleStartOffset

the drx-longcyclestatoffset is used to configure drx-LongCycle and drx-StartOffset. Wherein, DRX-LongCycle represents the cycle value of the DRX long cycle, DRX-StartOffset represents the offset subframe amount in the DRX long cycle, and these two parameters together determine the starting subframe of the DRX long cycle.

2)、drx-ShortCycle

DRX-short cycle represents the cycle value of the DRX short cycle.

3)、drx-ShortCycleTimer

The DRX-short cycle timer is used to configure the number of DRX short cycles.

4)、drx-onDurationTimer

The drx-onduration timer is used to configure the length of the On Duration period.

5)、drx-SlotOffset

The DRX-SlotOffset is used to configure the delay of DRX-onduration timer start, i.e. the DRX-onduration timer starts at the DRX-SlotOffset time after the start of the On Duration subframe in one DRX cycle.

The drx-SlotOffset is the offset within the subframe, which is less than 1ms.

The following example is a pseudo code representation of DRX-Config.

/>

In addition, the terminal may report the desired DRX cycle parameter to the base station, for example, the terminal sends auxiliary information ue assurelnformation to the base station, where the ue assurelnformation includes information for indicating the desired DRX cycle. The base station may configure the terminal with relevant parameters of the DRX cycle with reference to the desired DRX cycle.

Aiming at the DRX mechanism, the fact that the activation period of DRX is not matched with the arrival time of service data possibly occurs, so that the terminal delays receiving or sending the data, and user experience is reduced.

Fig. 5 is an exemplary diagram of DRX configuration of XR traffic data. In this example, the frame rate of the traffic data is 60FPS, so the period of the traffic data is 16.67ms, the size of the DRX cycle of the terminal is 16ms, and the start time of the 1 st DRX cycle is aligned with the start arrival time of the traffic data. It can be seen that the initial arrival time of the data in the first two periods falls within the active period of the DRX of the terminal, and the initial arrival time of the data of the service does not fall within the active period of the DRX of the terminal for several periods after the start of the third period. For the uplink data of the service, the base station schedules the terminal to send the uplink data in the first two periods, and the base station does not schedule the terminal to send the uplink data in a plurality of periods after the third period starts, so that the delay of the terminal to send the data is caused. For the downlink data of the service, the base station schedules the terminal to receive the downlink data in the first two periods, and the base station does not schedule the terminal to receive the downlink data in a plurality of periods after the third period starts, so that the delay of the terminal to receive the data is caused.

Fig. 6 is a flow chart of a communication method according to an embodiment of the present application. The method comprises the following steps:

in step 601, the terminal determines an active period of DRX, a start time of the active period being related to a period of data.

The period of data refers to a period of receiving or transmitting data of a target service. The target service may be an XR service or a video service, etc. The data may be at least one data frame of the target service, or at least one data slice (slice) of the target service, or at least one data block (tile) of the target service, or at least one set of protocol data units (protocol data unit, PDU) of the target service (PDU set), one PDU set containing one or more of the at least one data frame, the at least one data slice, or the at least one data block.

Since the period of data and the frame rate of data are reciprocal, the start time of the active period is related to the period of data, and it is also understood that the start time of the active period is related to the frame rate of data.

In one implementation, a base station transmits configuration information to a terminal, the start time of an active period for configuring DRX is determined based on a data period, and then the terminal determines the active period of DRX based on the data period according to the configuration information. It is understood that the configuration information triggers the terminal to determine an active period of DRX based on a period of data. Optionally, the configuration information is sent to the terminal in RRC signaling.

In one implementation, the period of the data is a period of uplink data, and the period of the data may be obtained by the terminal, for example, the terminal obtains the period of the data from an application layer of the terminal.

In yet another implementation method, the period of the data is a period of downlink data, and the terminal may acquire the period of the data by using, but not limited to, the following three methods:

in the method 1, an application server corresponding to the data sends the period of the data to a terminal through a user plane.

I.e. the period during which the terminal receives the data from the application server.

In method 2, the period of the data is configured by the base station to the terminal.

For example, the above configuration information is used for configuring the start time of the DRX active period of the terminal to be determined based on the period of the data on the one hand, and for indicating the period of the data to the terminal on the other hand, so the terminal determines the period of the data according to the configuration information. For another example, the base station transmits information for configuring the period of data to the terminal, and the terminal determines the period of data based on the information for configuring the period of data.

For example, if it is a period in which the base station configures data for the terminal, the base station may acquire the period of the data by: the base station receives a QoS profile (QoS profile) from a control plane network element of the core network, the QoS profile containing a period of data, or the base station detects a data arrival time interval in the QoS flow and determines the period of data according to the time interval.

And 3, the terminal automatically acquires the period of the data.

For example, the terminal detects a data arrival time interval in the QoS flow and determines a period of data according to the time interval.

In one implementation, the period T of the data is in milliseconds (ms), T being a non-integer.

In step 602, the terminal listens to the PDCCH during the active period of DRX.

The base station generally sends information carrying scheduling data to the terminal on the PDCCH in the active period of DRX, the terminal monitors the PDCCH in the active period of DRX, and when the base station sends information carrying scheduling data to the terminal on the PDCCH in a certain active period of DRX, the terminal can acquire the information of the scheduling data by monitoring the PDCCH.

The information of the scheduling data may be control information, such as control information for scheduling downlink data, or control information (e.g., grant information) for scheduling uplink data.

In the above scheme, the terminal determines the active period of DRX according to the period of data. Since the period of data and the frame rate of data are reciprocal, the terminal determines the active period of DRX according to the period of data, which may also be understood as the terminal determining the active period of DRX according to the frame rate of data. Accordingly, the above scheme may be understood as a scheme of configuring a period of the data for the terminal, and may also be understood as a frame rate of the data for the terminal, where the scheme of configuring the frame rate of the data for the terminal is similar to the scheme of configuring the period for the terminal, and will not be described again.

Alternatively, in yet another implementation, the terminal determines the period/frame rate of the data according to a parameter related to the period/frame rate of the data, and then the terminal determines the active period of DRX according to the period/frame rate of the data. Wherein the terminal may obtain parameters related to the period/frame rate of the data according to any of the following methods: the present application is not limited by the terminal acquiring the parameter related to the period/frame rate of the data by itself, the terminal receiving the parameter related to the period/frame rate of the data from the base station, or the terminal receiving the parameter related to the period/frame rate of the data from the application server, etc.

The conditions satisfied by the start time of the active period of DRX determined by the terminal are described below.

In the first method, the starting time of the activation period is as follows:

(a1+a2) Moduloa3=f1 (a4) Moduloa3+a5 … … equation (1)

Wherein a1 represents a system frame number corresponding to the start time of the activation period, a2 represents a subframe number corresponding to the start time of the activation period, one system frame includes 10 subframes, and the duration of one subframe is 1ms. f1 (a 4) represents a function related to a4, a5 is configured by the base station, and modulo operation is represented. a3 and a4 satisfy the following conditions: a3 =int (T), a4=t-int (T), where int represents a rounding operation, which may be rounding up or rounding down, and T is the period of the data.

As an implementation method, a5 represents a DRX-StartOffset configured by the base station to the terminal, where the DRX-StartOffset represents an offset subframe amount in the DRX cycle, and reference may be made to the foregoing description for details.

For example, assuming that the period t=16.67 ms, a5=0, f1 (a 4) =int (i×a4) of the XR service data, i represents the ith DRX period, i starts from 0, int (i×a4) represents rounding down the result of i×a4, and int (T) represents rounding down T, a3=int (16.67) =16, a4=t-int (T) =16.67-16=0.67 in the above formula (1).

The above equation (1) is therefore simplified as: (a1+a2) modulo16=int (i 0.67) module 16.

By the formula, if the start time of a certain subframe in a certain system frame satisfies the formula, the start time of the subframe is determined as the start time of the active period of the DRX. And then determining the active period of DRX according to the length of the active period configured by the base station. The subframe number of a certain subframe is represented by (a 1×10+a2). For example, when a1=0, a2=0, a subframe with a subframe number of 0 is indicated, when a1=0, a2=1, a subframe with a subframe number of 1 is indicated, when a1=1, a2=1, a subframe with a subframe number of 11 is indicated, and so on.

For the above example, an example diagram of the active period of DRX shown in fig. 7 may be obtained. The starting time of the active period of DRX is respectively: 0ms, 16ms, 33ms, 50ms, etc. If the length of the active period configured by the base station is 1ms, the active periods of DRX are respectively: 0 to 1ms, 16 to 17ms, 33 to 34ms, 50 to 51ms, etc.

For the foregoing example, if f1 (a 4) =int (i×a4) represents rounding up the result of i×a4, the start times of the active periods of DRX are determined as follows: 0ms, 17ms, 34ms, 50ms, etc. If the length of the active period configured by the base station is 1ms, the active periods of DRX are respectively: 0 to 1ms, 17 to 18ms, 34 to 35ms, 50 to 51ms, etc.

In yet another implementation, when the period T of the data is milliseconds (ms), the period T of the data may be replaced with a frame rate of 1000/D, where D represents the frame rate of the data in Frames Per Second (FPS). In the foregoing example, the period t=16.67 ms of data, then d=60 FPS. A3=int (T) may be replaced with a3=int (1000/D), and a4=t-int (T) may be replaced with a4=1000/D-int (1000/D).

In a second method, the starting time of the activation period satisfies:

(b1+b2) modulob3=f2 (b 3, b 4) modulob3+b5 … … equation (2)

Wherein b1 represents a system frame number corresponding to the start time, b2 represents a subframe number corresponding to the start time, one system frame comprises 10 subframes, and the duration of one subframe is 1ms. f2 (b 3, b 4) represents a function related to b3, b4, b5 is configured by the base station, and modulo represents a modulo operation. b3 and b4 have a greatest common divisor of 1 and satisfy: b3/b4=t, where b3 and b4 are positive integers, b3 may represent the duration of a DRX cycle, b4 may represent the number of active periods in a DRX cycle, and T is the period of data. In the embodiment of the present application, the duration of the DRX cycle may also be expressed as the size of the DRX cycle or the length of the DRX cycle, which are described in detail herein and will not be described in detail later. The DRX cycle may be a DRX long cycle or a DRX short cycle.

As an implementation method, b5 represents a DRX-StartOffset configured by the base station to the terminal, where the DRX-StartOffset represents an offset subframe amount in the DRX cycle, and reference may be made to the foregoing description for details.

For example, assuming that the period t=16.67 ms of XR service data, b3=50 and b4=3 in the above formula (2). Let f2 (b 3, b 4) =int (i×b3/b 4), i denotes the i-th active period in one DRX cycle, i equals 0,1, …, (b 4-1), and int (i×b3/b 4) denotes rounding down the result of i×b3/b 4. Let b5=0.

The above equation (2) is therefore simplified as: (b1+b2) modulo50=int (i 50/3) module 50.

By the formula, if the start time of a certain subframe in a certain system frame satisfies the formula, the start time of the subframe is determined as the start time of the active period of the DRX. And then determining the active period of DRX according to the length of the active period configured by the base station. The subframe number of a certain subframe is represented by (b 1×10+b2). For example, when b1=0, b2=0, it indicates a subframe with a subframe number of 0, when b1=0, b2=1, it indicates a subframe with a subframe number of 1, when b1=1, b2=1, it indicates a subframe with a subframe number of 11, and so on.

For the above example, an example diagram of the active period of DRX shown in fig. 8 may be obtained. Since b3=50, b4=3, the DRX cycle is 50ms, and there are 3 active periods within one DRX cycle. When i=0, b1=0, b2=0, the above formula is satisfied, and thus 0ms is the start time of the active period of DRX. When i=1, b1=1, b2=6, the above formula is satisfied, and thus 16ms is the start time of the active period of DRX. When i=2, b1=3, b2=3, the above formula is satisfied, and thus 33ms is the start time of the active period of DRX. And so on. Thus, the start times of the active periods of DRX are respectively: 0ms, 16ms, 33ms, 50ms, etc. If the length of the active period configured by the base station is 1ms, the active periods of DRX are respectively: 0 to 1ms, 16 to 17ms, 33 to 34ms, 50 to 51ms, etc.

For the foregoing example, if f2 (b 3, b 4) =int (i×b3/b 4) represents rounding up the result of i×b3/b4, the start times of the active periods of DRX are determined as follows: 0ms, 17ms, 34ms, 50ms, etc. If the length of the active period configured by the base station is 1ms, the active periods of DRX are respectively: 0 to 1ms, 17 to 18ms, 34 to 35ms, 50 to 51ms, etc.

In yet another implementation, when the period T of the data is milliseconds (ms), the period T of the data may be replaced with a frame rate of 1000/D, where D represents the frame rate of the data in Frames Per Second (FPS). In the foregoing example, the period t=16.67 ms of data, then d=60 FPS. The above b 3/b4=t may be replaced with b 3/b4=1000/D.

Method three, the starting time of the activation period satisfies:

(c1+c2) moduloc3=f3 (T) moduloc3+c5 … … equation (3)

Wherein c1 represents a system frame number corresponding to the start time, c2 represents a subframe number corresponding to the start time, one system frame includes 10 subframes, and the duration of one subframe is 1ms. f3 (T) represents a function related to T, c5 is configured by the base station, and modulo operation is represented by modulo. c3 and c4 have a greatest common divisor of 1 and satisfy: c3/c4=t, where c3 and c4 are positive integers, c3 may represent the duration of the DRX cycle, c4 may represent the number of sets of configured DRX cycles, and T is the period of data.

As an implementation method, c5 represents a DRX-StartOffset configured by the base station to the terminal, where the DRX-StartOffset represents an offset subframe amount in the DRX cycle, and reference may be made to the foregoing description for details.

Illustratively, assuming that the period t=16.67 ms of the XR service data, c3=50 and c4=3 in the above formula (3). Let f3 (T) =int (i×t), i denotes the i-th set of DRX configurations, i equals 0,1, …, (c 4-1), and int (i×t) denotes rounding down the result of i×t. Let c5=0.

The above equation (3) is therefore simplified as: (c1×10+c2) modulo50=int (i×16.67) module 50.

By the formula, if the start time of a certain subframe in a certain system frame satisfies the formula, the start time of the subframe is determined as the start time of the active period of the DRX. And then determining the active period of DRX according to the length of the active period configured by the base station. The subframe number of a certain subframe is represented by (c 1×10+c2). For example, when c1=0, c2=0, it indicates a subframe with a subframe number of 0, when c1=0, c2=1, it indicates a subframe with a subframe number of 1, when c1=1, c2=1, it indicates a subframe with a subframe number of 11, and so on.

For the above example, an example diagram of the active period of DRX shown in fig. 9 may be obtained. Since c3=50, c4=3, 3 sets of DRX are configured, and the DRX periods are all 50ms. When i=0, c1=0, c2=0, the above formula is satisfied, and thus 0ms is the start time of the active period of the first set of DRX. When i=1, c1=1, c2=6, the above formula is satisfied, and thus 16ms is the start time of the active period of the second set of DRX. When i=2, c1=3, c2=3, the above formula is satisfied, and thus 33ms is the start time of the active period of the third set of DRX. And so on. Thus, the start times of the active periods of DRX are respectively: 0ms, 16ms, 33ms, 50ms, etc. If the length of the active period configured by the base station is 1ms, the active periods of DRX are respectively: 0 to 1ms, 16 to 17ms, 33 to 34ms, 50 to 51ms, etc.

For the foregoing example, if f3 (T) =int (i×t) represents rounding up the result of i×t, the start times of the active periods of DRX are determined as follows: 0ms, 17ms, 34ms, 50ms, etc. If the length of the active period configured by the base station is 1ms, the active periods of DRX are respectively: 0 to 1ms, 17 to 18ms, 34 to 35ms, 50 to 51ms, etc.

In yet another implementation, when the period T of the data is milliseconds (ms), the period T of the data may be replaced with a frame rate of 1000/D, where D represents the frame rate of the data in Frames Per Second (FPS). In the foregoing example, the period t=16.67 ms of data, then d=60 FPS. The above f3 (T) =int (i×t) may be replaced with f3 (T) =int (i×1000/D). The above-mentioned c3/c4=t may be replaced by c3/c4=1000/D.

Method four, the starting time of the activation period satisfies:

int ((d1×10+d2) modular d 3) =int (d 4 modular d 3) … … formula (4)

Where d1 represents a system frame number corresponding to a start time of the active period, d2 represents a subframe number corresponding to a start time of the active period, one system frame includes 10 subframes, one subframe has a duration of 1ms, d3=t, T is a period of data, d4 represents a DRX-StartOffset configured by the base station to the terminal, and the DRX-StartOffset represents an offset subframe amount in the DRX period, which may be specifically referred to as described above. modulo represents a modulo operation. int represents a rounding operation, which may be either a rounding up or a rounding down.

Illustratively, let XR traffic data period t=16.67 ms, d4=0, int ((d1×10+d2) modulo d 3) denote rounding down (d1×10+d2) modulo d3, and int (d 4 modulo d 3) denote rounding down d4 modulo d 3.

The above equation (4) is therefore simplified as: int ((d1×10+d2) module 16.67) =int (0 module 16.67).

For the above example, an example diagram of the active period of DRX shown in fig. 10 may be obtained. The starting time of the active period of DRX is respectively: 0ms, 17ms, 34ms, 50ms, etc. If the length of the active period configured by the base station is 1ms, the active periods of DRX are respectively: 0 to 1ms, 17 to 18ms, 34 to 35ms, 50 to 51ms, etc.

In the above method, the start time of the active period in each DRX cycle is indicated by DRX-StartOffset, i.e., d4, i.e., the time after offset by the offset indicated by DRX-StartOffset from the start time of each DRX cycle is used as the start time of the active period in the DRX cycle. The unit of drx-StartOffset is a subframe, that is, the time at which drx-StartOffset is offset is the starting time of a subframe.

In another possible implementation method, the starting time of the active period in each DRX cycle may also be determined by DRX-StartOffset and DRX-SlotOffset, that is, starting from the starting time of each DRX cycle, the starting time of a certain subframe is obtained by performing offset according to an offset indicated by DRX-StartOffset, and then starting from the starting time of the subframe, the starting time of a certain slot (slot) in the subframe or the starting time of a certain subframe in a previous subframe of the subframe is obtained by performing offset according to an offset indicated by DRX-SlotOffset, where the starting time of the subframe is the starting time of the active period in the DRX cycle. Since the unit of drx-StartOffset is a subframe and the unit of drx-slotooffset is a slot, the offset time obtained from drx-StartOffset and drx-slotooffset is the start time of a slot in a subframe.

In one implementation, the drx-SlotOffset may be calculated by:

drx-slotoffset=int (((d1×10+d2-d 4) modod 3) d 5) … … formula (5)

Wherein d1, d2, d3, d4 have the same meaning as d1, d2, d3, d4 in formula (4). d5 represents the number of slots within one subframe (i.e. 1 ms), and the value of d5 is related to the subcarrier spacing.

In one implementation, the subcarrier spacing = 15khz x d5. D5=1 when the subcarrier spacing is 15kHz, d5=2 when the subcarrier spacing is 30kHz, d5=4 when the subcarrier spacing is 60kHz, and so on.

Taking the example of fig. 10 as an example, drx-SlotOffset is further introduced on the basis of the example of fig. 10. Where d4=drx-startoffset=0, d3=t=16.67 ms. Assuming that the subcarrier spacing is 30kHz, i.e., d5=2, the above equation (5) is simplified to: drx-slotoffset=int (((d1×10+d2) module 16.67) d 5), where it is assumed that int represents a downward rounding.

When (d1×10+d2) =17 ms, drx-slotoffset=int ((17 module 16.67) ×2) =0, and thus moves forward by 0 slot on the basis of 17ms (i.e., slot 34), i.e., the 34 th slot is the start time of the active period.

When (d1×10+d2) =34 ms, drx-slotoffset=int ((34 module 16.67) ×2) =1, and thus moves forward by 1 slot on the basis of 34ms (i.e., slot 68), i.e., 67 th slot is the start time of the active period.

When (d1×10+d2) =50 ms, drx-slotoffset=int ((50 module 16.67) ×2) =0, and thus moves forward by 0 slots on the basis of 50ms (i.e. instant 100), i.e. the 100 th slot is the start time of the active period.

Thus, in the above example, the start times of the active periods of DRX are respectively: slot 0, slot 34, slot 67, slot 100, etc. If the length of the active period configured by the base station is 1ms (i.e., 2 slots), the active periods of DRX are respectively: time slots 0-2, time slots 34-36, time slots 67-69, time slots 100-102, etc.

In yet another implementation, when the period T of the data is milliseconds (ms), the period T of the data may be replaced with a frame rate of 1000/D, and the period D3 may be replaced with 1000/D, where D represents the frame rate of the data in Frames Per Second (FPS). In the foregoing example, the period t=16.67 ms of data, then d=60 FPS. The above d3=t may be replaced with d3=1000/D.

Method five, the starting time of the activation period satisfies:

int (((e1×10+e2) ×e3+e4) module e 5) =int ((e6×e3+e7) module e 5) … … formula (6)

Wherein e1 represents a system frame number corresponding to the start time of the activation period, e2 represents a subframe number corresponding to the start time of the activation period, one system frame includes 10 subframes, the duration of one subframe is 1ms, e3 represents the number of time slots contained in one subframe, and e3 is d5 in the above method four, and the specific calculation method can refer to the foregoing description. e4 represents the e4 th slot in one subframe. e5 T×e3, T is the period of data. e6 represents DRX-StartOffset, which indicates the amount of offset subframes in the DRX cycle, allocated to the terminal by the base station. e7 represents a drx-SlotOffset allocated to the terminal by the base station, where drx-SlotOffset represents an offset slot amount in one subframe. (e6×e3+e7) represents the total offset slot amount from the start position of the DRX cycle. modulo represents a modulo operation. int represents a rounding operation, which may be either a rounding up or a rounding down.

For example, let XR traffic data period t=16.67 ms, e3=2, e5=16.67, e2=33.34, e6=3, e7=1, int denote rounding down. The above equation (6) is therefore reduced to: int (((e1×10+e2) ×e3+e4) module 33.34) =int (7module 33.34) =7.

From this formula, it can be obtained: when (e1×10+e2) ×e3+e4) is equal to 7, 41, 74, 107 … …, the formula is equal to the left and right, so the start times of the DRX active periods are respectively: slot 7, slot 41, slot 74, slot 107, etc. If the length of the active period configured by the base station is 2 time slots, the active periods of DRX are respectively: time slots 7-9, time slots 41-43, time slots 74-76, time slots 107-109, etc.

In yet another implementation, when the period T of the data is millisecond (ms), the period T of the data may be replaced with a frame rate of 1000/D, and the period e5 may be replaced with 1000/d×e3, where D represents the frame rate of the data in Frames Per Second (FPS). In the foregoing example, the period t=16.67 ms of data, then d=60 FPS.

The method six, the starting time of the activation period satisfies:

f1×f2+f3=int [ (f4+i×f5) ×f2/10] module (1024×f2) … … formula (7)

Wherein f1 represents a system frame number corresponding to a start time, f2 represents a number of time slots included in each system frame, f3 represents a time slot number corresponding to a start time of an active period, that is, a time slot in a system frame, f4 represents a DRX-StartOffset configured by a base station to a terminal, where DRX-StartOffset represents an offset subframe amount in a DRX cycle, and specific reference may be made to the foregoing description, f5 represents a duration of the DRX cycle, and f5=t, where T is a cycle of data. i denotes an i-th DRX cycle or an active period of DRX. modulo represents a modulo operation. int represents a rounding operation, which may be either a rounding up or a rounding down.

Illustratively, let XR service data period t=16.67 ms, f4=0, int denote rounding down, so equation (6) above is simplified to: f1×f2+f3=int [ i×16.67×f2/10] module (1024×f2).

Assuming that the subcarrier spacing is 30kHz, f2=20, and assuming that traffic arrives at slot 0 of system frame number 0, by the formula, if the start time of a certain slot in a certain system frame satisfies the formula, the start time of the slot is determined to be the start time of the active period of DRX. And then determining the active period of DRX according to the length of the active period configured by the base station. For this example, the start times of the active periods of DRX are respectively: slot 0, slot 34, slot 67, slot 100, etc. If the length of the active period configured by the base station is 1ms (i.e., 2 slots), the active periods of DRX are respectively: time slots 0-2, time slots 34-36, time slots 67-69, time slots 100-102, etc.

In yet another implementation, when the period T of the data is milliseconds (ms), the period T of the data may be replaced with a frame rate of 1000/D, where D represents the frame rate of the data in Frames Per Second (FPS). In the foregoing example, the period t=16.67 ms of data, then d=60 FPS. F5=t may be replaced by f5=1000/D.

Method seven, the starting time of the activation period satisfies:

(g 1 g2 g 3) + (g 4 g 3) +g5=int [ (g 6 g2 g3+g7 g3+g8) +i g9] module (1024 g2 g 3) … formula (8)

Wherein g1 represents a system frame number corresponding to a start time, g2 represents a number of slots included in each system frame, g3 represents a number of symbols included in each slot, g4 represents a subframe number corresponding to a start time, g5 represents a number of symbols corresponding to a start time, g6 represents a DRX-StartOffset allocated to a terminal by a base station, the DRX-StartOffset represents an offset subframe amount in a DRX cycle, g7 represents a DRX-SlotOffset allocated to a terminal by a base station, the DRX-SlotOffset represents an offset slot amount in the DRX cycle, and g8 represents a DRX-symbol offset allocated to a terminal by a base station. g9 denotes the duration of the DRX cycle, g9=t, T being the period of the data. i denotes an i-th DRX cycle or an active period of DRX. modulo represents a modulo operation. int represents a rounding operation, which may be either a rounding up or a rounding down.

In one implementation, when the period T of the data is milliseconds (ms), the period T of the data may be replaced with a frame rate of 1000/D, where D represents the frame rate of the data in Frames Per Second (FPS).

The method eight, the starting time of the activation period satisfies:

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

wherein h1 represents a system frame number corresponding to a start time, h2 represents a time slot number corresponding to the start time, h3 represents a DRX-StartOffset configured to a terminal by a base station, the DRX-StartOffset represents an offset subframe amount in a DRX cycle, h4 represents a duration of the DRX cycle, h4=t, T is a cycle of data, i represents an i-th DRX cycle or an active period of DRX, modular represents a modular operation, and int represents a rounding operation, which may be an up rounding operation or a down rounding operation.

In the embodiment of the application, the base station can determine the activation period of the DRX through the DRX-Config configuration terminal according to the method shown in the figure 6. Five possible implementations of DRX-Config are given below.

Implementing method a, adding fields tailored for XR and inter (0..int (T) -1) in DRX-Config DRX-longcyclestatoffset.

The name of the tap for XR is only an example, and in practical application, other names may be substituted, which is not limited by the present application.

the measurement for XR is a specific implementation of the configuration information described in step 601, and the start time of the active period for configuring DRX is determined based on the period of data. The tap for XR may be a specific value, for example, 0,1, or a boolean value, or an enumeration value, which is not limited by the present application.

Inter (0..int (T) -1) denotes an INTEGER in 0 to int (T) -1, and int (T) denotes rounding the period T of data. When the above method one is adopted, inter (0..int (T) -1) is used to configure a5 in the foregoing formula (1), that is, a5 is configured as one of the values of 0,1,2 … …, int (T) -1. When the above method two is adopted, inter (0..int (T) -1) is used to configure b5 in the foregoing formula (2), that is, b5 is configured as one of the values of 0,1,2 … …, int (T) -1. When the above method three is adopted, inter (0..int (T) -1) is used to configure c5 in the foregoing formula (3), that is, c5 is configured as one of the values of 0,1,2 … …, int (T) -1. It can be seen from this implementation that the range of values of a5, b5, c5 can be related to the period T of the data.

The following example is a pseudo code representation of DRX-Config in this implementation a.

Method B is implemented by adding multiple sets of fields in DRX-longcycle offset of DRX-Config, a set of fields including a tap for XR and an inter (0..int (T) -1), a start time of an active period for configuring DRX being determined based on a period of data, and indicating the period of data.

The following example is one example of a pseudo code representation of DRX-Config in this implementation B.

In this example, 3 sets of fields are newly added in drx-longcycletartoffset.

The first set of fields includes a tap for XR (T1) and inter (0..int (T1) -1), wherein a start time of an active period of DRX for configuring the terminal by the tap for XR (T1) is determined based on a period of data, and the period of data is indicated as T1. Inter (0..int (T1) -1) represents an INTEGER from 0 to int (T1) -1.

The second set of fields includes a tap for XR (T2) and inter (0..int (T2) -1), wherein a start time of an active period of DRX for configuring the terminal by the tap for XR (T2) is determined based on a period of data, and a period of data is indicated as T2. Inter (0..int (T2) -1) represents an INTEGER from 0 to int (T2) -1.

The third set of fields includes a tap for XR (T3) and inter (0..int (T3) -1), wherein a start time of an active period of DRX for configuring the terminal by the tap for XR (T3) is determined based on a period of data, and a period of data is indicated as T3. Inter (0..int (T3) -1) represents an INTEGER from 0 to int (T3) -1.

As a specific example, tap for XR (T1) is 0,tailored for XR (T2) and 1,tailored for XR (T3) is 2.

Implementing method C, adding tailored for XR and INTEGRER (0..int (T) -1) in DRX-Config, and adding Cycle-Information field in DRX-Config.

the start time of the active period for configuring DRX by the tailored for XR is determined based on the period of the data.

The Cycle-Information field is used to indicate the period of data.

The following example is one example of a pseudo code representation of DRX-Config in this implementation C.

According to the implementation method A, B, C, the starting time of the DRX activation period of the configuration terminal is determined based on the period of the data by multiplexing the existing DRX-Config, so that signaling overhead can be reduced, and the performance can be improved.

In the implementation method A, B, C, the DRX parameters are configured using the period T of the data as an example. When the DRX parameter is configured at the frame rate D of the data, the period T of the data in the above implementation method A, B, C is replaced with 1000/D, and the Cycle-Information field is replaced with the FPS-Information field for indicating the frame rate of the data. Specifically, the above-mentioned int (T) is replaced with int (1000/D), the above-mentioned int (T1) is replaced with int (1000/D1), the above-mentioned int (T2) is replaced with int (1000/D2), the above-mentioned int (T3) is replaced with int (1000/D3), the above-mentioned bailored for XR (T1) is replaced with bailored for XR (D1), the above-mentioned bailored for XR (T2) is replaced with bailored for XR (D2), the above-mentioned bailored for XR (T3) is replaced with bailored for XR (D3), wherein t=1000/D, t1=1000/D1, t2=1000/D2, t3=1000/D3.

In the implementation method D, a DRX-FPSStartOffset field is newly added in the DRX-Config, wherein the field contains two parameter information, one is the frame rate (represented by D) of data, the value range is 0-1023, and the other is the offset subframe quantity in the DRX period, and the value range is 0-int (1000/D) -1. When the DRX start position is calculated after configuring the parameter of the DRX-FPSStartOffset field, the original DRX-longcycletatoffset field is not used.

The name of drx-FPSStartOffset is only an example, and other names may be substituted in practical application, and the application is not limited to the names.

The DRX-FPSStartOffset is a specific implementation of the configuration information described in step 601, and the start time of the active period for configuring DRX is determined based on the period (or frame rate) of data.

INTEGRER (0..int (1000/D) -1) represents an INTEGER from 0 to int (1000/D) -1, and int (1000/D) represents rounding the frame rate D of the data. This implementation D can be combined with method four described above, inter (0..int (1000/D) -1) for configuring D3 and D4 in the foregoing equation (4).

The following example is a pseudo code representation of DRX-Config in this implementation D.

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The drx-FPSStartOffset field in the implementation method D may be split into two fields, specifically, a drx-FPS field and a drx-StartOffset field. Wherein, the DRX-FPS field indicates a frame rate of data, and the DRX-StartOffset indicates an offset subframe amount within the DRX cycle.

The method E is realized, a ms-Cycle field and a corresponding offset subframe amount in a DRX period are newly added in the DRX-Config, and the value range of the offset subframe amount in the DRX period is 0-int (T) -1. When the ms-Cycle field and the corresponding offset subframe amount in the DRX period are configured, the original DRX-longCycleTartOffset field is not used when the DRX initial position is calculated.

The ms-Cycle name is only an example, and in practical application, other names may be substituted, and the application is not limited to the names.

ms-Cycle is a specific implementation of the configuration information described in step 601, and the start time of the active period for configuring DRX is determined based on the period (or frame rate) of the data.

Inter (0..int (T) -1) denotes an INTEGER in 0 to int (T) -1, and int (T) denotes rounding the period T of data. The implementation method E may be combined with the above method four, where the ms-Cycle field is used to configure d3 in the above formula (4), and the inter (0..int (T) -1) is used to configure d4 in the above formula (4).

The following example is a pseudo code representation of DRX-Config in this implementation E.

The above msonehundredthird, msfiftythird, msonehundredninth, mstwentyfivethird is a specific example of ms-Cycle.

It should be noted that, for the fifth to seventh methods, the configuration information described in step 601 may also be configured in a pseudo code form similar to the implementation method D or E, which is not described in detail.

It will be appreciated that, in order to implement the functions in the above embodiments, the base station and the terminal include corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application scenario and design constraints imposed on the solution.

Fig. 11 and 12 are schematic structural diagrams of a possible communication device according to an embodiment of the present application. These communication devices may be used to implement the functions of the terminal or the base station in the above method embodiments, so that the beneficial effects of the above method embodiments may also be implemented. In the embodiment of the present application, the communication device may be one of the terminals 120a to 120j shown in fig. 1, or may be the base station 110a or 110b shown in fig. 1, or may be a module (e.g., a chip) applied to the terminal or the base station.

The communication device 1100 shown in fig. 11 includes a processing unit 1110 and an interface unit 1120. The communication device 1100 is configured to implement the functions of the terminal or the base station in the above-described method embodiment.

When the communication device 1100 is configured to implement the functions of the terminal in the above-described method embodiment, the processing unit 1110 is configured to determine an active period of DRX, where a start time of the active period is related to a period of data; the processing unit 1110 is further configured to control the communication apparatus 1100 to monitor the PDCCH during the active period of the DRX.

In a possible implementation method, the interface unit 1120 is configured to receive configuration information from a radio access network device; the processing unit 1110 is specifically configured to determine, according to the configuration information, an active period of the DRX based on a period of the data.

(a1*10+a2)modulo a3＝f1(a4)modulo a3+a5；

(b1*10+b2)modulo b3＝f2(b3,b4)modulo b3+b5；

(c1*10+c2)modulo c3＝f3(T)modulo c3+c5；

int((d1*10+d2)modulo d3)＝int(d4 modulo d3)；

where d5 represents the number of slots within one subframe.

int(((e1*10+e2)*e3+e4)modulo e5)＝int((e6*e3+e7)modulo e5)；

f1*f2+f3＝int[(f4+i*f5)*f2/10]modulo(1024*f2)；

(g1*g2*g3)+(g4*g3)+g5＝int[(g6*g2*g3+g7*g3+g8)+i*g9]modulo(1024*g2*g3)；

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

In one possible implementation, the period T of the data is a non-integer.

When the communication apparatus 1100 is configured to implement the functions of the radio access network device in the above-described method embodiment, the processing unit 1110 is configured to control the interface unit 1120 to send configuration information to the terminal, where the start time of the active period for configuring DRX is determined based on the period of data.

In a possible implementation method, the interface unit 1120 is further configured to send control information to the terminal on the physical downlink control channel PDCCH during the active period of the DRX.

(a1*10+a2)modulo a3＝f1(a4)modulo a3+a5；

the a3 and a4 satisfy:

(b1*10+b2)modulo b3＝f2(b3,b4)modulo b3+b5；

(c1*10+c2)modulo c3＝f3(T)modulo c3+c5；

int((d1*10+d2)modulo d3)＝int(d4 modulo d3)；

where d5 represents the number of slots within one subframe.

int(((e1*10+e2)*e3+e4)modulo e5)＝int((e6*e3+e7)modulo e5)；

f1*f2+f3＝int[(f4+i*f5)*f2/10]modulo(1024*f2)；

(g1*g2*g3)+(g4*g3)+g5＝int[(g6*g2*g3+g7*g3+g8)+i*g9]modulo(1024*g2*g3)；

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

In a possible implementation, the interface unit 1120 is further configured to send information for configuring the period of the data to the terminal.

In one possible implementation, the period T of the data is a non-integer.

The more detailed description of the processing unit 1110 and the interface unit 1120 may be directly obtained by referring to the related description in the above method embodiment, which is not repeated herein.

The communication device 1200 shown in fig. 12 includes a processor 1210 and an interface circuit 1220. Processor 1210 and interface circuit 1220 are coupled to each other. It is understood that the interface circuit 1220 may be a transceiver or an input-output interface. Optionally, the communication device 1200 may further include a memory 1230 for storing instructions to be executed by the processor 1210 or for storing input data required by the processor 1210 to execute instructions or for storing data generated after the processor 1210 executes instructions.

When the communication device 1200 is used to implement the above-described method embodiments, the processor 1210 is used to implement the functions of the above-described processing unit 1110, and the interface circuit 1220 is used to implement the functions of the above-described interface unit 1120.

When the communication device is a chip applied to the terminal, the terminal chip realizes the functions of the terminal in the embodiment of the method. The terminal chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal, and the information is sent to the terminal by the base station; alternatively, the terminal chip sends information to other modules in the terminal (e.g., radio frequency modules or antennas) that the terminal sends to the base station.

When the communication device is a module applied to a base station, the base station module realizes the functions of the base station in the method embodiment. The base station module receives information from other modules (such as radio frequency modules or antennas) in the base station, the information being transmitted by the terminal to the base station; alternatively, the base station module transmits information to other modules in the base station (e.g., radio frequency modules or antennas) that the base station transmits to the terminal. The base station module may be a baseband chip of a base station, or may be a DU or other module, where the DU may be a DU under an open radio access network (open radio access network, O-RAN) architecture.

It is to be appreciated that the processor in embodiments of the application may be a central processing unit (Central Processing Unit, CPU), other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, transistor logic device, hardware components, or any combination thereof. The general purpose processor may be a microprocessor, but in the alternative, it may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, removable disk, compact disk read-only memory (compact disc read-only memory), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a base station or terminal. The processor and the storage medium may reside as discrete components in a base station or terminal.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a base station, a user equipment, or other programmable apparatus. The computer program or 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 program or instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, e.g., floppy disk, hard disk, tape; but also optical media such as digital video discs; but also semiconductor media such as solid state disks. The computer readable storage medium may be volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage medium.

In various embodiments of the application, where no special description or logic conflict exists, terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments based on their inherent logic.

In the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. In the text description of the present application, the character "/", generally indicates that the associated objects are an or relationship; in the formula of the present application, the character "/" indicates that the front and rear associated objects are a "division" relationship.

It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application. The sequence number of each process does not mean the sequence of the execution sequence, and the execution sequence of each process should be determined according to the function and the internal logic.

Claims

1. A method of communication, comprising:

determining an activation period of Discontinuous Reception (DRX), wherein the starting time of the activation period is related to the period of data;

and monitoring a physical downlink control channel PDCCH in the DRX activation period.

2. The method as recited in claim 1, further comprising:

receiving configuration information from a radio access network device;

the determining the active period of DRX includes:

and determining the activation period of the DRX based on the period of the data according to the configuration information.

3. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

(a1*10+a2)modulo a3＝f1(a4)modulo a3+a5；

wherein a1 represents a system frame number corresponding to the start time, a2 represents a subframe number corresponding to the start time, f1 (a 4) represents a function related to a4, and a5 is configured by a radio access network device, and modulo is represented by modulo operation;

the a3 and a4 satisfy the following conditions: a3 =int (T), a4=t-int (T), said int representing a rounding operation, said T being the period of said data.

4. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

(b1*10+b2)modulo b3＝f2(b3,b4)modulo b3+b5；

wherein b1 represents a system frame number corresponding to the start time, b2 represents a subframe number corresponding to the start time, f2 (b 3, b 4) represents a function related to b3, b4, and b5 is configured by a radio access network device, and modulo is represented by modulo;

The greatest common divisor of b3 and b4 is 1, and satisfies: b3/b4=t, where b3 and b4 are both positive integers, and T is the period of the data.

5. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

(c1*10+c2)modulo c3＝f3(T)modulo c3+c5；

wherein c1 represents a system frame number corresponding to the start time, c2 represents a subframe number corresponding to the start time, f3 (T) represents a function related to T, and c5 is configured by a radio access network device, and modulo is represented by modulo operation;

the greatest common divisor of c3 and c4 is 1, and satisfies: c3/c4=t, where both c3 and c4 are positive integers, and T is the period of the data.

6. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

int((d1*10+d2)modulo d3)＝int(d4 modulo d3)；

7. The method of claim 6, wherein the start time of the active period is further related to an offset slot amount within the DRX cycle, =int (((d1 x 10+d2-d 4) module d 3) xd 5);

Where d5 represents the number of slots within one subframe.

8. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

int(((e1*10+e2)*e3+e4)modulo e5)＝int((e6*e3+e7)modulo e5)；

wherein e1 represents a system frame number corresponding to the start time, e2 represents a subframe number corresponding to the start time, e3 represents a number of time slots contained in one subframe, e4 represents a 4 th time slot in one subframe, e5=te3, T is a period of the data, e6 represents an offset subframe amount in a DRX period, e7 represents an offset time slot amount in one subframe, module represents a modulo operation, and int represents a rounding operation.

9. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

f1*f2+f3＝int[(f4+i*f5)*f2/10]modulo(1024*f2)；

wherein f1 represents a system frame number corresponding to the start time, f2 represents a number of time slots included in one system frame, f3 represents a time slot number corresponding to the start time, f4 represents an offset subframe amount in a DRX cycle, f5 represents a duration of the DRX cycle, f5=t, T is a cycle of the data, i represents an i-th DRX cycle or an active period of DRX, modular represents a modulo operation, and int represents a rounding operation.

10. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

(g1*g2*g3)+(g4*g3)+g5＝int[(g6*g2*g3+g7*g3+g8)+i*g9]modulo(1024*g2*g3)；

Wherein g1 represents a system frame number corresponding to the starting time, g2 represents a time slot number contained in one system frame, g3 represents a symbol number contained in one time slot, g4 represents a subframe number corresponding to the starting time, g5 represents a symbol number corresponding to the starting time, g6 represents an offset subframe amount in a DRX period, g7 represents an offset time slot amount in the DRX period, g8 represents an offset symbol amount in the DRX period, g9 represents a duration of the DRX period, g9=T, T is a period of the data, i represents an i-th DRX period or an active period of DRX, and modulus operation, int represents rounding operation.

11. The method according to claim 1 or 2, wherein the start time of the activation period satisfies:

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

wherein h1 represents a system frame number corresponding to the start time, h2 represents a time slot number corresponding to the start time, h3 represents an offset subframe amount in a DRX cycle, h4 represents a duration of the DRX cycle, h4=t, T is a cycle of the data, i represents an ith DRX cycle or an active period of DRX, modular represents a modulo operation, and int represents a rounding operation.

12. The method according to any of claims 1 to 11, wherein the period of data is configured by a radio access network device.

13. The method of any of claims 1 to 12, wherein the PDCCH carries information that schedules the data.

14. The method of any one of claims 1 to 13, wherein the period T of the data is a non-integer.

15. A method of communication, comprising:

and transmitting configuration information to the terminal, wherein the starting time of the activation period for configuring the discontinuous reception DRX is determined based on the period of the data.

16. The method as recited in claim 15, further comprising:

and in the activation period of the DRX, control information is sent to the terminal on a physical downlink control channel PDCCH.

17. The method of claim 16, wherein the control information is used to schedule the data.

18. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

(a1*10+a2)modulo a3＝f1(a4)modulo a3+a5；

The a3 and a4 satisfy the following conditions:

a3 =int (T), a4=t-int (T), said int representing a rounding operation, said T being the period of said data.

19. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

(b1*10+b2)modulo b3＝f2(b3,b4)modulo b3+b5；

20. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

(c1*10+c2)modulo c3＝f3(T)modulo c3+c5；

21. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

int((d1*10+d2)modulo d3)＝int(d4 modulo d3)；

22. The method of claim 21, wherein the start time of the active period is further related to an offset slot amount within the DRX cycle, =int (((d1 x 10+d2-d 4) module d 3) xd 5);

where d5 represents the number of slots within one subframe.

23. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

int(((e1*10+e2)*e3+e4)modulo e5)＝int((e6*e3+e7)modulo e5)；

wherein e1 represents a system frame number corresponding to the start time, e2 represents a subframe number corresponding to the start time, e3 represents a number of time slots included in one subframe, e4 represents a 4 th time slot in one subframe, e5=te3, T is a period of the data, e6 represents an offset subframe amount in a DRX period, e7 represents an offset time slot amount in one subframe, (e6×e3+e7) represents a total offset time slot amount from a start position of the DRX period, modulo is represented, and int represents a rounding operation.

24. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

f1*f2+f3＝int[(f4+i*f5)*f2/10]modulo(1024*f2)；

25. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

(g1*g2*g3)+(g4*g3)+g5＝int[(g6*g2*g3+g7*g3+g8)+i*g9]modulo(1024*g2*g3)；

26. The method according to any one of claims 15 to 17, wherein the start time of the activation period satisfies:

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

27. The method of any of claims 15 to 26, wherein the configuration information is further used to configure a period of the data.

28. The method of any one of claims 15 to 26, further comprising:

and sending information for configuring the period of the data to the terminal.

29. A method as claimed in any one of claims 15 to 28, wherein the period T of the data is a non-integer.

30. A communication device, comprising:

a processing unit, configured to determine an active period of discontinuous reception DRX, where a start time of the active period is related to a period of data;

the processing unit is further configured to control the communication apparatus to monitor a physical downlink control channel PDCCH in the active period of the DRX.

31. The apparatus of claim 30, wherein the communication apparatus further comprises an interface unit to receive configuration information from a radio access network device;

the processing unit is specifically configured to determine, according to the configuration information, an activation period of the DRX based on a period of the data.

32. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

(a1*10+a2)modulo a3＝f1(a4)modulo a3+a5；

33. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

(b1*10+b2)modulo b3＝f2(b3,b4)modulo b3+b5；

34. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

(c1*10+c2)modulo c3＝f3(T)modulo c3+c5；

35. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

int((d1*10+d2)modulo d3)＝int(d4 modulo d3)；

36. The apparatus of claim 35, wherein the start time of the active period is further related to an offset slot amount within the DRX cycle, =int (((d1 x 10+d2-d 4) module d 3) x d 5);

Where d5 represents the number of slots within one subframe.

37. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

int(((e1*10+e2)*e3+e4)modulo e5)＝int((e6*e3+e7)modulo e5)；

38. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

f1*f2+f3＝int[(f4+i*f5)*f2/10]modulo(1024*f2)；

39. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

(g1*g2*g3)+(g4*g3)+g5＝int[(g6*g2*g3+g7*g3+g8)+i*g9]modulo(1024*g2*g3)；

40. The apparatus of claim 30 or 31, wherein a start time of the activation period satisfies:

h1*10+h2＝int[(h3+i*h4)]modulo(1024*10)；

41. The apparatus of any of claims 30 to 40, wherein the period of data is configured by a radio access network device.

42. The apparatus of any of claims 30 to 41, wherein the PDCCH carries information that schedules the data.

43. The apparatus of any one of claims 30 to 42, wherein the period T of the data is a non-integer.

44. A communication device, comprising: a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the communication device to perform the method of any one of claims 1 to 14.

45. A communication device, comprising: a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the communications apparatus to perform the method of any of claims 15 to 29.

46. A chip system, comprising: the system-on-chip comprises at least one processor, and interface circuitry coupled to the at least one processor, the processor executing instructions to perform the method of any one of claims 1 to 14, or to perform the method of any one of claims 15 to 29.

47. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program or instructions which, when executed by a communication device, implements the method of any of claims 1 to 14 or implements the method of any of claims 15 to 29.

48. A communication system comprising communication means for performing the method of any one of claims 1 to 14 and communication means for performing the method of any one of claims 15 to 29.