CN113543287A

CN113543287A - Method and device for monitoring physical downlink control channel

Info

Publication number: CN113543287A
Application number: CN202010308012.6A
Authority: CN
Inventors: 薛祎凡; 薛丽霞; 铁晓磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-10-22
Anticipated expiration: 2040-04-17
Also published as: CN113543287B; WO2021208794A1

Abstract

A method and apparatus for physical downlink control channel monitoring are provided to determine how to monitor PDCCH. The network equipment generates first indication information and sends the first indication information to the terminal equipment, wherein the first indication information is used for indicating the mode of monitoring the PDCCH by the terminal equipment; and the terminal equipment determines a mode for monitoring the PDCCH in a first time interval according to the first indication information, wherein the first time interval is determined according to the monitoring period of the first indication information, so that the terminal equipment can clearly determine how to monitor the PDCCH, the PDCCH monitoring is reduced, and the power consumption of the terminal equipment is reduced.

Description

Method and device for monitoring physical downlink control channel

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for monitoring a Physical Downlink Control Channel (PDCCH).

Background

The fifth Generation new radio access technology (5G NR) is a subject recently proposed in the 3rd Generation partnership project (3 GPP) organization, and is located in release 14. In the last 10 years, the LTE standard proposed by the 3GPP organization has been widely used throughout the world, referred to as 4G communication technology.

As the new generation of 5G technology enters the discussion phase, it is concerned about whether or not the system structure and access procedure achieved in the original 4G LTE are continuously adopted and how to adopt, on one hand, since the communication system is the latter-term compatible, the new technology developed later tends to be compatible with the technology standardized before; on the other hand, since 4G LTE already has a lot of existing designs, if compatibility is achieved, much of the flexibility of 5G must be sacrificed, thereby reducing performance. Therefore, two directions are currently being investigated in parallel in the 3GPP organization, and in both directions, the technology discussion group without regard to backward compatibility, is called 5G NR.

In the process of communication between the network device and the terminal device, the network device may send a data packet to the terminal device, and before the network device sends each data packet, the network device may send scheduling information (e.g., PDCCH) corresponding to the data packet to the terminal device. Therefore, the terminal device needs to continuously monitor the scheduling information of the data packet to successfully receive the data packet, i.e. the terminal device needs to continuously monitor the PDCCH. At present, terminal equipment causes higher power consumption of the terminal equipment in the process of continuously monitoring the PDCCH. The power consumption of the terminal device directly affects the standby time of the terminal device, and further affects the user experience. In order to ensure good user experience, the third generation partnership project 3GPP has made a special establishment in Rel-16 for the problem of saving power consumption of terminal devices, and research on saving power consumption of terminal devices is becoming more and more common, and a detailed optimization scheme for reducing power consumption of terminal devices is becoming a research direction in the industry.

Disclosure of Invention

The application provides a method and a device for monitoring a PDCCH, which are used for determining how a terminal device monitors the PDCCH.

In a first aspect, the present application provides a method for PDCCH monitoring, which may include: the network equipment generates first indication information and sends the first indication information to the terminal equipment; the first indication information is used for indicating that the terminal device does not monitor a PDCCH carrying Downlink Control Information (DCI) of a specific format; the terminal equipment determines not to monitor the PDCCH bearing the DCI with the specific format according to the first indication information; the DCI of the specific format is partial DCI in the current DCI of all formats.

By the method, the first indication information indicates that the terminal equipment does not monitor the PDCCH bearing the downlink control information DCI with the specific format, so that PDCCH monitoring can be reduced, power consumption of the terminal equipment is reduced, and the terminal equipment is not influenced to read necessary information.

In one possible design, the particular format does not include at least one of: format2_0, format2_ 2, format2_ 3. Therefore, PDCCH monitoring can be reduced, the power consumption of the terminal equipment is reduced, and the terminal equipment is not influenced to read necessary information.

In a second aspect, the present application provides a PDCCH monitoring method, which may include: the network equipment generates first indication information and sends the first indication information to the terminal equipment; the first indication information is used for indicating a mode of monitoring the PDCCH by the terminal equipment; and the terminal equipment determines a mode for monitoring the PDCCH in a first time interval according to the first indication information, wherein the first time interval is determined according to the monitoring period of the first indication information.

According to the method, the terminal equipment is indicated to monitor the PDCCH through the first indication information, so that the terminal equipment can clearly monitor the PDCCH, the PDCCH monitoring can be reduced, and the power consumption of the terminal equipment is reduced.

In one possible design, the manner in which the PDCCH is monitored may include at least one of: whether to monitor the PDCCH, whether to monitor the PDCCH within a first time interval, whether to monitor the PDCCH within a sub-time interval within the first time interval, whether to monitor the PDCCH for periodic switching, terminal equipment information, time resource information, frequency domain resource information, or whether to perform CSI measurement. In this way, the terminal device can clearly monitor the PDCCH according to the PDCCH monitoring mode.

In a possible design, the first indication information is located in a first time slot, and a start time of the first time interval is the first time slot, or a start time of the first time interval is a next time slot of a transmission end time of the first indication information in the first time slot; or, the first indication information is located in a first symbol in a first time slot, and a start time of the first time interval is a next symbol of the first symbol. Therefore, the starting time of monitoring the PDCCH in a PDCCH monitoring mode can be accurately determined.

In one possible design, the first indication information is located in a first search space, an end time of the first time interval is an end time of a previous time slot of a second time slot, the second time slot is next R monitoring times of the first search space after the first time slot, and R is an integer greater than or equal to 1. Therefore, the end time of monitoring the PDCCH in a PDCCH monitoring mode can be accurately determined.

In one possible design, the first indication information may be indicated by one bit, and when the bit is a first value, the first indication information indicates that the PDCCH is not monitored; when the bit is a second value, the first indication information indicates to monitor the PDCCH. This may accurately determine whether monitoring of the PDCCH is required in the first time interval.

In one possible design, the first time interval includes N first sub-time intervals, where N is an integer greater than or equal to 2; the first indication information is indicated by the N bits, and the nth bit is used for indicating whether the terminal device monitors the PDCCH in an nth first sub-time interval, where N is an integer from 1 to N. This may accurately determine whether the PDCCH needs to be monitored in each sub-time interval in the first time interval.

In one possible design, the first time interval includes K second sub-time intervals, where K is an integer greater than or equal to 1; the first indication information is indicated by M x K bits, wherein each bit indicates whether a group of terminal devices monitors the PDCCH in a second sub-time interval, the group of terminal devices is one group of terminal devices in M groups of terminal devices, and M is an integer greater than or equal to 2; the terminal device is included in any one of the M groups of terminal devices. In this way, it can be determined whether any terminal device needs to monitor the PDCCH in each sub-time interval in the first time interval.

In one possible design, the first indication information includes at least two indication fields, and any one of the indication fields is used for indicating one of the following items: terminal device information, time resource information, frequency domain resource information, or whether CSI measurement is required. Thus, the operations required to be executed by the terminal equipment can be respectively specified through the two indication fields.

In one possible design, the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors the first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1. Therefore, whether each group of terminal devices needs to monitor the PDCCH in each sub-time interval of the first time interval can be determined.

In one possible design, the first indication field includes a bits, the a bits are respectively used for indicating the group a terminal devices, the second indication field includes B bits, the B bits are respectively used for indicating the B third sub-time intervals; an a-th bit of the A bits and a B-th bit of the B bits collectively indicate whether a group a terminal devices monitor the PDCCH in a B-th third sub-time interval within the first time interval, wherein a takes an integer from 1 to A, and B takes an integer from 1 to B. Therefore, whether each group of terminal devices needs to monitor the PDCCH in each sub-time interval of the first time interval can be determined.

In one possible design, the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1. Therefore, whether each group of terminal equipment needs to monitor the PDCCH in each group of carriers can be determined.

In one possible design, the first indication field includes C bits, the C bits are respectively used for indicating the C groups of terminal devices, the second indication field includes D bits, the D bits are respectively used for indicating the D groups of carriers; a C bit of the C bits and a D bit of the D bits jointly indicate whether a C group terminal device monitors the PDCCH in a D group carrier of the D group carriers; wherein C is an integer from 1 to C, and D is an integer from 1 to D. Therefore, whether each group of terminal equipment needs to monitor the PDCCH in each group of carriers can be determined.

In one possible design, the at least two indication fields are two indication fields, a first indication field indicates the frequency domain resource information, and a second indication field indicates the time resource information; the frequency domain resource information is information of an E group carrier configured by the terminal device, the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1. In this way, it can be determined whether the terminal device needs to monitor the PDCCH in the first time interval when in each group of carriers.

In one possible design, the first indication field includes E bits, the E bits are respectively used for indicating the E groups of carriers, the second indication field includes F bits, the F bits are respectively used for indicating the F fourth sub-time intervals; an E-th bit of the E bits and an F-th bit of the F bits jointly indicate whether the terminal device monitors the PDCCH in an F-th sub-time interval of the first time interval when the terminal device is in an E-group carrier; wherein E is an integer from 1 to E, and F is an integer from 1 to F. In this way, it can be determined whether the terminal device needs to monitor the PDCCH in the first time interval when in each group of carriers.

In one possible design, the at least two indication fields are three indication fields, a first indication field indicates the terminal device information, a second indication field indicates the frequency domain resource information, and a third indication field indicates the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1. Therefore, whether each group of terminal equipment monitors the PDCCH in each sub-time interval in the first time interval or not in any group of carriers can be determined.

In one possible design, the first indication field includes G bits, the G bits are respectively used to indicate the G groups of terminal devices, the second indication field includes H bits, the H bits are respectively used to indicate the E groups of carriers, the third indication field includes I bits, and the I bits respectively indicate the I fifth sub-time intervals; a G-th bit of the G bits, an H-th bit of the H bits, and an I-th bit of the I bits, which collectively indicate whether a G-th group of terminal devices monitors the PDCCH in an I-th sub-time interval of the first time interval when the G-th group of terminal devices is on an H-th carrier; wherein G is taken as an integer from 1 to G, H is taken as an integer from 1 to H, and I is taken as an integer from 1 to I. Therefore, whether each group of terminal equipment monitors the PDCCH in each sub-time interval in the first time interval or not in any group of carriers can be determined.

In one possible design, the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement is required; the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback. Therefore, whether the terminal equipment needs to monitor the PDCCH or not in the first time interval and whether CSI measurement and feedback are needed or not can be determined.

In one possible design, the first indication field includes 1 bit and the second indication field includes 1 bit; 1 bit of the first indication domain indicates the terminal device to monitor or not monitor the PDCCH in the first time interval through different values; and the 1 bit of the second indication domain indicates the terminal equipment to perform or not perform CSI measurement and feedback through different values. Therefore, whether the terminal equipment needs to monitor the PDCCH or not in the first time interval and whether CSI measurement and feedback are needed or not can be determined.

In one possible design, the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement is required; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1. Therefore, whether the terminal device needs to monitor the PDCCH or not in each sub-time interval of the first time interval and whether CSI measurement and feedback are needed or not can be determined.

In one possible design, the first indication field includes J bits, the J bits are respectively used for indicating the J sixth sub-time intervals, and the second indication field includes 1 bit; the jth bit of the J bits and 1 bit of the second indication field jointly indicate whether the terminal device monitors the PDCCH and performs CSI measurement and feedback in the jth and sixth sub-time intervals of the first time interval; where J is an integer from 1 to J. Therefore, whether the terminal device needs to monitor the PDCCH or not in each sub-time interval of the first time interval and whether CSI measurement and feedback are needed or not can be determined.

In a third aspect, the present application provides a PDCCH monitoring method, which may include: the network equipment generates first indication information and sends the first indication information to the terminal equipment; the first indication information comprises at least two indication fields, and any one of the indication fields is used for indicating one of the following items: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not; and the terminal equipment executes corresponding operation according to the indications of the at least two indication domains of the first indication information.

The method can make clear the operation required to be executed by the terminal equipment through the first indication information, thereby saving the power consumption of the terminal equipment.

In a fourth aspect, the present application further provides an apparatus, which may be a terminal device, and the apparatus has a function of implementing the terminal device in the first aspect or each possible design example of the first aspect, the second aspect or each possible design example of the second aspect, and the third aspect or each possible design example of the third aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the apparatus includes a transceiver unit and a processing unit, and these units may execute the corresponding functions of the terminal device in the first aspect or each possible design example of the first aspect, the second aspect or each possible design example of the second aspect, and the third aspect or each possible design example of the third aspect, for which specific reference is made to the detailed description in the method example, and details are not repeated here.

In one possible design, the apparatus structurally includes a transceiver and a processor, and optionally further includes a memory, the transceiver is configured to transmit and receive data or information, and is configured to perform communication interaction with other devices in the communication system, and the processor is configured to support the apparatus to perform corresponding functions of the terminal device in the first aspect or each possible design example of the first aspect, the second aspect or each possible design example of the second aspect, and the third aspect or each possible design example of the third aspect. The memory is coupled to the processor and holds the program instructions and data necessary for the device.

In a fifth aspect, the present application further provides an apparatus, which may be a network device, and which has a function of implementing the network device in the first aspect or each possible design example of the first aspect, the second aspect or each possible design example of the second aspect, and the third aspect or each possible design example of the third aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the apparatus includes a transceiver unit and a processing unit, and these units may execute the corresponding functions of the network device in the first aspect or each possible design example of the first aspect, the second aspect or each possible design example of the second aspect, and the third aspect or each possible design example of the third aspect, for which specific reference is made to the detailed description in the method example, and details are not repeated here.

In one possible design, the apparatus structurally includes a transceiver and a processor, and optionally further includes a memory, the transceiver is configured to transmit and receive data or information, and is configured to perform communication interaction with other devices in the communication system, and the processor is configured to support the apparatus to perform corresponding functions of the network device in the first aspect or each possible design example of the first aspect, the second aspect or each possible design example of the second aspect, and the third aspect or each possible design example of the third aspect. The memory is coupled to the processor and holds the program instructions and data necessary for the device.

In a sixth aspect, an embodiment of the present application provides a communication system, which may include the above-mentioned terminal device and network device.

In a seventh aspect, a computer-readable storage medium provided in an embodiment of the present application stores program instructions, which, when executed on a computer, cause the computer to perform the first aspect and any possible design of the embodiment of the present application. By way of example, computer readable storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: a computer-readable medium may include a non-transitory computer-readable medium, a random-access memory (RAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a CD-ROM or other optical disk storage, a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In an eighth aspect, embodiments of the present application provide a computer program product comprising computer program code or instructions, which when run on a computer, causes the computer to implement the method of any of the above aspects.

In a ninth aspect, the present application further provides a chip, coupled to a memory, for reading and executing program instructions stored in the memory to implement any of the above methods.

For each of the fourth to eighth aspects and possible technical effects of each aspect, please refer to the above description of the possible technical effects for each possible solution in the first, second, or third aspect, and no repeated description is given here.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system provided in the present application;

FIG. 2 is a schematic view of a scenario provided herein;

fig. 3 is a schematic diagram of a DRX cycle according to the present application;

fig. 4 is a flowchart of a PDCCH monitoring method provided in the present application;

fig. 5 is a flowchart of another PDCCH monitoring method provided in the present application;

fig. 6 is a schematic diagram of monitoring of a PDCCH provided in the present application;

fig. 7 is a schematic diagram of another PDCCH monitoring provided in the present application;

fig. 8 is a schematic diagram of another PDCCH monitoring provided in the present application;

fig. 9a is a schematic diagram of M × K bits of first indication information provided in the present application;

fig. 9b is a schematic diagram of M × K bits of another first indication information provided in the present application;

fig. 9c is a schematic diagram of another PDCCH monitoring provided herein;

FIG. 10 is a schematic diagram of a first indication provided by the present application;

FIG. 11 is a schematic diagram of another first indication provided by the present application;

FIG. 12 is a schematic diagram of another first indication provided by the present application;

FIG. 13 is a schematic diagram of another first indication provided by the present application;

FIG. 14 is a schematic diagram of another first indication provided by the present application;

FIG. 15 is a schematic diagram of another first indication provided by the present application;

FIG. 16 is a diagram illustrating a location of a first field provided herein;

FIG. 17 is a diagram illustrating a location of a first field provided herein;

FIG. 18 is a diagram illustrating a location of a first field provided herein;

FIG. 19 is a flow chart of another method of PDCCH monitoring provided herein;

FIG. 20 is a schematic diagram of an apparatus according to the present application;

fig. 21 is a block diagram of an apparatus provided in the present application.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application provides a method and a device for monitoring a PDCCH. The method and the device are based on the same technical concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

In the description of the present application, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor order.

In the description of the present application, "at least one" means one or more, and a plurality means two or more.

In order to more clearly describe the technical solution of the embodiment of the present application, the following describes in detail a PDCCH monitoring method and apparatus provided in the embodiment of the present application with reference to the accompanying drawings.

Fig. 1 shows an architecture of a communication system according to an embodiment of the present application, where the architecture of the communication system includes a network device and a terminal device, where:

the network device is a device with a wireless transceiving function or a chip that can be set in the network device, and the network device includes but is not limited to: a base station (gbb), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), an Access Point (AP) in a wireless fidelity (WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (TRP, or transmission point, TP), etc., and may also be a network Node that constitutes the gbb or the transmission point, such as a baseband unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include a Radio Unit (RU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB, for example, the CU implements Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP) layers, and the DU implements Radio Link Control (RLC), Medium Access Control (MAC) and Physical (PHY) layers. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as RRC layer signaling or PHCP layer signaling, may also be considered to be transmitted by the DU or by the DU + RU under this architecture. It is to be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. The CU may be divided into network devices in the access network RAN, or may be divided into network devices in the core network CN, which is not limited to this.

The terminal equipment may also be referred to as User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart wearable device (smart glasses, smart watch, smart headset, etc.), a wireless terminal in smart home (smart home), and so on. The embodiments of the present application do not limit the application scenarios. In the present application, a terminal device having a wireless transceiving function and a chip that can be installed in the terminal device are collectively referred to as a terminal device.

It should be noted that the communication system shown in fig. 1 may be, but is not limited to, a fifth Generation (5th Generation, 5G) system, such as a new radio access technology (NR), and optionally, the method of the embodiment of the present application is also applicable to various future communication systems, such as a 6G system or other communication networks.

In a specific actual scenario, a network device may send a data packet to a terminal device, the network device may send scheduling information corresponding to the data packet before sending each data packet, and the terminal device needs to continuously monitor the scheduling information of the data packet to successfully receive the data packet. However, in a period of time, the network device may not send the data packet to the terminal device, but the terminal device still monitors the scheduling information of the data packet in the period of time, which may cause higher power consumption of the terminal device.

For example, taking the terminal device as a mobile phone as an example, when a user watches video and plays a game through the mobile phone, the network device (e.g., the base station) sends data packets to the mobile phone intermittently, that is, after sending for a period of time, the network device stops sending for a period of time, and then sends for a period of time. For example, when a user watches a video, the network device sends a data packet to the mobile phone in the video buffering process, the network device stops sending the data packet to the mobile phone after the video buffering is finished, and the network device sends the data packet to the mobile phone again when the next buffering is carried out after a period of time. The two buffers are often separated by hundreds of milliseconds (ms) or seconds or tens of seconds. For another example, when a user plays a game via a mobile phone network, a network device (e.g., a base station) may send a data packet to the mobile phone at intervals, for example, the content of the data packet is a game content change, such as the position, motion trajectory, motion, what skills are released, and the like of a teammate/opponent. The data packets are typically separated by a time interval, such as 20 ms. For example, at one time, the mobile phone receives a packet of "the opponent has changed its position", as shown in fig. 2 (a), and after 20ms, the mobile phone receives a packet of "the opponent has released some skill", as shown in fig. 2 (b). In the above process, the mobile phone always monitors whether a data packet sent by the base station needs to be received (i.e. always monitors the scheduling information of the data packet sent by the base station), the power consumption of the mobile phone is very high, and the most direct expression is that the electric quantity of the mobile phone is very quickly consumed, which may cause that the mobile phone suddenly loses power when a user watches a video or plays a game through the mobile phone, thereby affecting the user experience.

The above shows that, in a scene that a user watches a video through a mobile phone, the time interval between the data packets sent by the network device to the mobile phone is large, and in a scene that the user plays games through the mobile phone, the time interval between the data packets sent by the network device to the mobile phone is small. Currently, in Rel-16, a Downlink Control Information (DCI) format (format)2_6 is introduced, and when a terminal device is configured with Discontinuous Reception (DRX) (as shown in fig. 3, which is a schematic diagram of a DRX cycle), a base station indicates whether monitoring of a PDCCH is required in a DRX cycle (cycle) associated with the current DCI format2_ 6 before a DRX duration (OnDuration). One DRX cycle is usually more than one hundred milliseconds long, so the DCI format2_ 6 can be applied to optimize the power consumption of the mobile phone in a scene where the user watches the video through the mobile phone, that is, in a scene where the time interval between data packets is large. However, for the situation that the time interval between data packets in the scene of the user playing the game through the mobile phone is small, a proper mode for optimizing the power consumption of the mobile phone is not defined in the current standard.

Therefore, the gNB sends signaling to indicate that the UE may not need to monitor the PDCCH within a period of time (e.g., several slots, or several subframes, or several milliseconds, or several PDCCH monitoring sessions, etc.), so as to achieve the effect of saving energy, but there is no more optimized detailed scheme to determine what kind of signaling the PDCCH skiping indicates, so as to further optimize the power consumption performance of the mobile phone.

Based on this, the application provides a method for monitoring a PDCCH, which is used for determining how to monitor the PDCCH, so as to save power consumption of terminal equipment. For example, in the above process, after the base station sends a data packet to the mobile phone, the base station may determine that the data packet is not sent to the mobile phone within a short time, for example, 10ms, and at this time, the base station may send an indication to the mobile phone to enable the mobile phone not to monitor the PDCCH within 10ms, thereby achieving the purpose of saving energy.

Currently, Downlink Control Information (DCI) is carried in a PDCCH for transmission. The DCI that the terminal device needs to monitor is divided into different formats (formats), and in the current standard, the functions of each format of the DCI may be as follows:

0_0, 0_1, 0_2, configured to schedule a Physical Uplink Shared Channel (PUSCH), and 0_2 is compressed dci (compact dci) used by ultra-reliable low-latency communication (URLLC);

1_0, 1_1, 1_2, used for scheduling PUSCH, 1_2 is compact DCI used by URLLC;

2_0 for indicating slot format (slot format), and indicating Channel Occupancy Time (COT), available RB set (duration, available RB set), and search space group switching indication (search space group switching) in unlicensed spectrum (unlicensed); the DCI is scrambled by using a slot format indication radio network temporary identity (SFI-RNTI);

2 — 1, indicating preemption (pre-preemption), typically used in URLLC;

2_2,2_3, indicating a transmit power control command (TPC) command, a channel sounding reference Signal Request (SRS) request); format2_ 2 is scrambled with Transmit Power Control (TPC) -PUSCH-RNTI or TPC-PUCCH-RNTI, and format2_ 3 is scrambled with TPC-sounding reference Signal Request (SRS) -RNTI;

2 — 4, indicating cancellation (cancellation) of Uplink (UL) transmission, typically used for URLLC;

2_5, indicating whether soft resources (soft resources) are available in Integrated Access and Backhaul (IAB);

2_6, when the terminal device configures Discontinuous Reception (DRX), indicating whether to skip PDCCH monitoring in the next DRX cycle (cycle), and indicating a dormant behavior (dormant behavior) of the terminal device; the DCI format is monitored outside of the activation time;

among them, several DCI formats with formats 0_ x or 1_ x are usually sent to a certain terminal device. While several DCI formats with format2_ x are generally sent to a plurality of terminal devices (i.e. a group of terminal devices), the DCI carrying DCI format2_ x is called group common DCI (GC-DCI).

In the above format, except for special scenes (unipossibly, URLLC, IAB), there are 0_0, 0_1, 1_0, 1_1, 2_0,2_2,2_3 of the formats that may occur during the activation time in an enhanced mobile broadband (eMBB) scene.

In the course of research and discussion on power consumption saving of a terminal device, it is proposed to skip PDCCH (PDCCH skiping), and it is desirable for a network device to send signaling to indicate that the terminal device may not need to monitor PDCCH for a period of time (e.g. several slots, several subframes, several milliseconds, or several PDCCH monitoring occasions (monitoring occasion), etc.), where the DCI format2_ 6 is different from the PDCCH skiping referred to herein, and the specific differences are as follows:

(1) the DCI format2_ 6 is sent outside the active time (active time), and the PDCCH blanking is sent within the active time;

(2) the DCI format2_ 6 indicates whether a C-DRX cycle (with a typical value of 160ms or 320ms) monitors the PDCCH, and the indicated granularity is larger; the PDCCH blanking indicates whether to monitor the PDCCH in several time slots, or several sub-frames, or several milliseconds, or several PDCCH monitoring sessions, and the granularity of the indication is relatively small.

Actually, the DCI format2_ 6 has some disadvantages. Because the indication granularity is one C-DRX cycle, after the base station indicates that the terminal device does not monitor the PDCCH, before the next C-DRX cycle of the C-DRX cycle associated with the current DCI format2_ 6, if data arrives, the base station can only wait for the next C-DRX cycle to transmit, which may cause a relatively large delay. Or, if the terminal device has data to arrive, even if the data amount is small, the base station may instruct the terminal device to monitor the PDCCH in the current C-DRX cycle, which may cause power waste.

At present, there is no preferable scheme for the above PDCCH skiping indication method. Based on the above, the application provides a method for monitoring the PDCCH, and how to monitor the PDCCH is clarified.

It should be noted that, in this embodiment of the present application, monitoring or not monitoring the PDCCH may be implemented by the first device, and the second device may implement instructing how the first device monitors the PDCCH. Specifically, the first device may be a terminal device, or a processor in the terminal device, or a chip system, or a functional module, etc.; the second device may be a network device, or a processor in a network device, or a chip or a system of chips, or a functional module, etc. In the following embodiments, the PDCCH monitoring method provided in the present application is described in detail by taking only the first device as a terminal device and the second device as a network device, but the present application is not limited thereto.

In the embodiment of the present application, the first indication information may be PDCCH skiping, and the following description is made as follows.

Based on the above description, the method for monitoring PDCCH provided in the embodiment of the present application is applicable to the communication system shown in fig. 1. Referring to fig. 4, a specific process of the method may include:

step 401: the network device generates first indication information, where the first indication information is used to indicate that the terminal device does not monitor a specific PDCCH, where the specific PDCCH carries DCI with a specific format, where the DCI with the specific format is a part of DCI in all current formats, and the part of DCI is DCI including scheduling data.

The network equipment can send a PDCCH skiping indication to the terminal equipment when the terminal equipment has no data service, so that the terminal equipment avoids monitoring some PDCCHs. The PDCCH may carry DCI of different formats (formats), which have different functions. When the terminal device has no data service, the network device does not send scheduling information to the terminal device, so the terminal device can save power consumption by not monitoring the DCI carrying the scheduling data. However, some formats of DCI include control signaling, and even if the terminal device does not have data service, the terminal device needs to monitor the DCI formats carrying the control signaling. Therefore, the PDCCH blanking indication sent by the network device to the terminal device may only act on DCI including scheduling data, but not on DCI carrying control signaling. When monitoring the PDCCH, the terminal device already knows which DCI formats to monitor in a certain time slot are by the configuration of the search space. Therefore, after receiving the PDCCH skiping indication, the terminal device can determine which time slots may not monitor the PDCCH and which time slots still need to monitor the PDCCH. For example, the network device configures the terminal device, and needs to monitor DCI including scheduling data in each of slot 1 to slot 10, and needs to monitor DCI carrying control signaling in slot 1 and slot 6. The terminal equipment receives first indication information indicating that the PDCCH is not monitored in the time slot 1 to the time slot 10. The terminal will still monitor the PDCCH (to receive DCI carrying control signaling) in slot 1 and slot 6, and not monitor the PDCCH in slot 2 to slot 5, and slot 7 to slot 10 to save power.

In an alternative embodiment, the specific format does not include at least one of: format2_0, format2_ 2, format2_ 3. Specifically, it is understood that the indication of the first indication information is not applied to monitoring the search space (search space) of the DCI formats 2_0,2_2, and 2_3 (the first indication is not applied to the DCI formats 2_0,2_2, and 2_3, or the first indication is not applied to the search space in the background UE monitors DCI formats 2_0,2_2, and 2_ 3); or, disregarding the indication of the first indication information when the terminal device monitors the DCI formats 2_0,2_2, and 2_3 (the UE identities DCI format2_0,2_2, and 2_3regardless the first indication). The DCI of format2_0, format2_ 2, and format2_ 3 all belong to DCI carrying control signaling, and are monitored in a common search space.

Specifically, the specific reasons that DCI terminals of formats 2_0,2_2, and 2_3 need to monitor are as follows: format2_0 indicates slot format. Even if the terminal device has no data scheduling, the terminal device still needs to perform some periodic behaviors, such as Channel State Information (CSI) measurement/reporting. These periodic behaviors also depend on slot format, for example, the terminal device needs to determine which symbols are uplink and which symbols are downlink according to format2_ 0. The terminal equipment can only carry out CSI measurement in the downlink symbols and carry out CSI reporting in the uplink symbols. Format2_0 also needs to be monitored when there is no data to schedule. Format2_ 2 indicates a Physical Uplink Control Channel (PUCCH) and a TPC command of a PUSCH, which are used to adjust transmission power of a periodic PUCCH and a PUSCH (e.g., for CSI reporting). In order to ensure correct transmission of information, such as periodic CSI reporting, format2_ 2 also needs to be monitored when there is no data scheduling. Format2_ 3 indicates a TPC command of a sounding reference Signal Request (SRS), which is used to adjust the transmit power of the periodic SRS, and format2_ 2 needs to be monitored when there is no data scheduling in order to guarantee correct transmission of the periodic SRS. In summary, the monitoring of the formats 2_0,2_2and 2_3 is not controlled by the first indication information.

In an alternative embodiment, the specific format may be at least one of: format 0_0, format 0_1, format 0_2, format 1_0, format 1_1, format 1_ 2. Therefore, according to the first indication information, monitoring of the format 0_0, the format 0_1, the format 0_2, the format 1_0, the format 1_1 and the format 1_2 can be reduced when the terminal equipment has no data transmission, and therefore power consumption of the terminal equipment is saved.

Specifically, the DCI of format 0_0, format 0_1, format 0_2, format 1_0, format 1_1, and format 1_2 may be monitored in a common search space or in a specific search space of the terminal device; these several formats may be scrambled using C-RNTI, CS-RNTI, MCS-C-RNTI or SP-CSI-RNTI.

Step 402: and the network equipment sends the first indication information to the terminal equipment.

Step 403: and the terminal equipment determines not to monitor the specific PDCCH according to the first indication information, namely determines not to monitor the PDCCH carrying the DCI with the specific format.

By adopting the method for monitoring the PDCCH provided by the embodiment of the application, the first indication information indicates that the terminal equipment does not monitor the PDCCH bearing the downlink control information DCI with the specific format, the PDCCH monitoring can be reduced, the power consumption of the terminal equipment is reduced, and meanwhile, the terminal equipment is not influenced to read necessary information.

Based on the above description, another PDCCH monitoring method provided in the embodiments of the present application is applicable to the communication system shown in fig. 1. Referring to fig. 5, a specific process of the method may include:

step 501: the network equipment generates first indication information, wherein the first indication information is used for indicating a mode of monitoring the PDCCH by the terminal equipment.

Step 502: and the network equipment sends the first indication information to the terminal equipment.

Step 503: and the terminal equipment determines a mode for monitoring the PDCCH in a first time interval according to the first indication information, wherein the first time interval is determined according to the monitoring period of the first indication information.

Illustratively, the manner of monitoring the PDCCH may include at least one of: whether to monitor the PDCCH, whether to monitor the PDCCH in a first time interval, whether to monitor the PDCCH in a sub-time interval in the first time interval, whether to monitor/not monitor the PDCCH for periodic switching, terminal equipment information, time resource information, frequency domain resource information, whether to perform CSI measurement, and the like.

In an optional implementation manner, the first indication information is located in a first time slot, and a start time of the first time interval is the first time slot, or a start time of the first time interval is a next time slot of a transmission end time of the first indication information in the first time slot; or, the first indication information is located in a first symbol in the first time slot, and a start time of the first time interval is a next symbol of the first symbol.

It should be noted that, when the unit of a symbol is used, one slot may include 14 symbols or 12 symbols. Usually, the terminal device may receive PDCCH in the first few (1-3) symbols of a slot, so the terminal device may receive the first indication information at this position.

Specifically, the first indication information is located in a first search space, the end time of the first time interval may be the end time of a previous time slot of a second time slot, the second time slot may be R monitoring times after the first time slot, the R monitoring times are the monitoring times of the first search space, and R is an integer greater than or equal to 1.

In a specific embodiment, the first indication information is indicated by a bit, and when the bit is a first value, the first indication information indicates not to monitor the PDCCH; when the bit is a second value, the first indication information indicates to monitor the PDCCH. Wherein the first value is 0 and the second value is 1; or the first value is 1 and the second value is 0.

For example, the network device configures the terminal device to monitor the first indication information in a common search space set 1 (CSS 1), where the first indication information is 1 bit, and a monitoring period of the CSS 1 is 10 slots (slots). If the terminal device detects that the first indication information is '0' in the CSS 1, the terminal device may not monitor the PDCCH until the next (or next several) monitoring time, and if the terminal device detects that the first indication information is '1' in the CSS 1, the UE monitors the PDCCH normally. Or, when the terminal device CSS 1 detects that the first indication information is '1', the terminal device may not monitor the PDCCH until the next (or next) monitoring time, and if the UE detects that the first indication information is '0' in the CSS 1, the terminal device normally monitors the PDCCH. Of course, the above 1 and 0 may be other values, and the present application is not limited to this comparison. In this example, monitoring of PDCCH may be as shown in fig. 6, and of course, only the starting time of the first time interval is taken as the ending time of the previous time slot of the next monitoring time in fig. 6 as an example, and the following cases of multiple monitoring times are similar and are not shown one by one here.

For another example, if the network device configures the terminal device to monitor the first indication information in both CSS 1 and CSS2, where the monitoring period of CSS 1 is 10 slots and the monitoring period of CSS2 is 20 slots. The w slot is simultaneously the monitoring instant of both CSS. Taking the example that the first indication information is '0' to represent that the PDCCH is not monitored, and '1' to represent that the PDCCH is monitored, if the terminal device detects that the first indication information is '0' in the CSS 1, the terminal device does not monitor the PDCCH until the (w +10Z) th slot; if the terminal device detects that the first indication information is '0' in the CSS2, the terminal device does not monitor the PDCCH before slot n + 20W; otherwise, the terminal equipment monitors the PDCCH normally. Or, taking the example that the first indication information is '1' to represent that the PDCCH is not monitored, and is '0' to represent that the PDCCH is monitored, if the terminal device detects that the first indication information is '1' in the CSS 1, the terminal device does not monitor the PDCCH until the (w +10Z) th slot; if the terminal device detects that the first indication information is '1' in the CSS2, the terminal device does not monitor the PDCCH before the (n +20Z) th slot; otherwise, the terminal equipment monitors the PDCCH normally. Wherein Z is an integer greater than or equal to 1.

In a specific example, such as shown in fig. 7, different terminal devices may monitor different first indication information in the same timeslot. For example, different terminal devices may be assigned different RNTIs, monitoring different DCIs. Of course, a plurality of terminal apparatuses may be assigned the same RNTI and share the same first indication information.

In an alternative embodiment, the first time interval may include N first sub-time intervals, where N is an integer greater than or equal to 2; the first indication information may be indicated by the N bits, where an nth bit is used to indicate whether the terminal device monitors the PDCCH in an nth first sub-time interval, where N is an integer from 1 to N. Wherein the value of N is configured by the network device. Wherein, the integer from N to 1 to N represents that N is 1, 2, 3, … …, N; similarly, the content of other concepts presented in the present application is understood the same, and the other related places are not described one by one.

For example, as shown in fig. 8, taking 10 slots as an example of the monitoring period of CCS1, it is assumed that the first time interval includes 10 slots, and includes 2 sub-time intervals (i.e., N is equal to 2), and each sub-time interval is 5 slots. The first indication information is indicated by 2 bits, each bit indicates whether the PDCCH is monitored in 5 slots, that is, the first bit indicates whether the PDCCH is monitored in the first sub-time interval (the first 5 slots), and the second bit indicates whether the PDCCH is monitored in the second first sub-time interval (the last 5 slots). It should be noted that the first sub-time interval may be less than 5 slots, because the reception of the first indication information needs to occupy a part of time, but for convenience of description, in the example of the present application, the time occupied by the first indication information is ignored, and the same applies in the following examples, and will not be described any more.

In another alternative embodiment, the first time interval may include K second sub-time intervals, where K is an integer greater than or equal to 1; the first indication information may be indicated by M × K bits, where each bit indicates whether a group of terminal devices monitors the PDCCH in a second sub-time interval, where the group of terminal devices is one of M groups of terminal devices, and M is an integer greater than or equal to 2; the terminal device is included in any one of the M groups of terminal devices. Wherein the value of K is configured by the network device. Specifically, which bits are read by the terminal device, or which group of terminal devices the terminal device belongs to is configured by the network device.

For example, the M × K bits may be divided into M bit blocks, each bit block (or referred to as a bit set) including K bits therein, each bit block indicating whether a group of terminal devices monitors the PDCCH during K second sub-time intervals. Specifically, as shown in the schematic diagram of M × K bits shown in fig. 9a, an mth bit block in the M bit blocks indicates whether the mth group of terminal devices monitors the PDCCH in a first time interval (i.e., in K second sub-time intervals), and a kth bit in one bit block indicates whether the group of terminal devices monitors the PDCCH in the kth second sub-time interval.

In another example, the M × K bits may be divided into K bit blocks, each bit block includes M bits, and each bit block indicates whether M groups of terminal devices in one second sub-time interval monitor the PDCCH. Specifically, as shown in the schematic diagram of M × K bits shown in fig. 9b, the kth bit block indicates whether to monitor the PDCCH in the kth second sub-time interval, and the mth bit in one bit block indicates whether to monitor the PDCCH in the mth group of terminal devices. That is, the mth bit in the kth bit block may indicate: and whether the mth group of terminal equipment monitors the PDCCH in the kth second sub-time interval or not.

It should be noted that, for a certain terminal device, after receiving the first indication information, at least M × K bits are obtained. But only K bits are needed by the terminal device, and the remaining M x K-K bits are useless information for the terminal device. The terminal device needs to determine which K bits to read from the M x K bits. This information may be configured by the network device to the terminal device. There are several possibilities for the specific configuration method. One possible method is that the network device sends configuration information directly to the terminal device, the configuration information being what bits the terminal device needs to read. For example, when M × K bits are divided into M bit blocks, and each bit block includes K bits, the network device may configure a start bit and a bit length that the terminal device needs to read; or the network device configures the terminal device to read the several bit blocks. Another possible method is that the terminal device determines which bits are read by the terminal device group number in which the terminal device is located. For example, the network device sends configuration information to the terminal device indicating that the terminal device belongs to the first terminal device group. When M x K bits are divided into M bit blocks, wherein the mth bit block indicates whether the mth group of terminal devices monitors the PDCCH in the first time interval, the terminal devices can determine to read the mth bit block according to the group number of the terminal devices. The M × K bits may be divided into K bit blocks, and when the kth bit block indicates whether M groups of terminal devices monitor the PDCCH in the kth second sub-time interval, the terminal devices may determine which bit/bits to read in each bit block according to their own group numbers.

For example, as shown in fig. 9c, the terminal device monitoring the first indication information is divided into M-2 groups, and a first time interval including 10 slots may be divided into K-2 second sub-time intervals. At this time, the first bit may indicate whether the first group of terminal devices in the first 5 slots (i.e., the first second sub-time interval) monitors the PDCCH, the second bit indicates whether the second group of terminal devices in the first 5 slots monitors the PDCCH, the third bit indicates whether the first group of terminal devices in the last 5 slots (i.e., the second sub-time interval) monitors the PDCCH, and the fourth bit indicates whether the second group of terminal devices in the last 5 slots monitors the PDCCH.

Of course, the first bit may also indicate whether the first group of terminal devices in the first 5 slots monitors the PDCCH, the second bit indicates whether the first group of terminal devices in the last 5 slots monitors the PDCCH, the third bit indicates whether the second group of terminal devices in the first 5 slots monitors the PDCCH, and the fourth bit indicates whether the second group of terminal devices in the last 5 slots monitors the PDCCH. Other indications are of course possible and are not listed here.

It should be noted that in fig. 6-8 and fig. 9c, each column represents one or more symbols in one slot, and the symbol represented by each column identifies a symbol that is typically monitored by the terminal device for the PDCCH.

In an optional embodiment, the first indication information may include at least two indication fields, and any one of the indication fields is used to indicate one of the following: terminal device information, time resource information, frequency domain resource information, or whether CSI measurement is required, wherein the two indication fields indicate different contents. Specifically, according to the difference of the indication fields included in the first indication information, the following situations can be classified:

in case a1, the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the time resource information; the terminal device information may be information of a group a terminal device, and the time resource information may be information of whether the group a terminal device monitors the first time interval of the PDCCH, where the first time interval includes B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

In an example of the case a1, the first indication field may include a bits, the a bits are respectively used for indicating the group a terminal devices, the second indication field may include B bits, the B bits are respectively used for indicating the B third sub-time intervals; an a-th bit of the A bits and a B-th bit of the B bits collectively indicate whether a group a terminal devices monitor the PDCCH in a B-th third sub-time interval within the first time interval, wherein a takes an integer from 1 to A, and B takes an integer from 1 to B.

For example, the first time interval includes 10 slots, and is divided into 5 third sub-time intervals, each of which is 2 slots, and is indicated by 5 bits (bit), i.e. B is 5. The terminal devices are divided into 3 groups, i.e. a equals 3.

For example, 8 bits may be as shown in fig. 10, in an embodiment, the 8 bits shown in fig. 10, each of the first three bits "001" corresponds to a group of terminal devices, where "0" represents that 10 slots are skipped for the first two groups of terminal devices, that is, PDCCH is not monitored in 10 slots, "1" represents that the third group of terminal devices is monitored according to the last five bits "11000," and specifically each of the last five bits "11000" corresponds to two slots in sequence, where "0" represents that PDCCH corresponding to two slots is not monitored, and "1" represents that PDCCH corresponding to two slots is monitored, so that the 8 bits represent that 10 slots are skipped for the first two groups of terminal devices, PDCCH is not monitored, and the last group of terminal devices monitor PDCCH in the first 4 slots, and PDCCH is not monitored in the last 6 slots. This indication method saves bits compared to the above-described method of indicating by M × K bits (the method of M × K requires 3 × 5 — 15 bits).

In an embodiment, as shown in fig. 10, with 8 bits, a "0" in the first three bits indicates monitoring according to the last 5 bits, a "1" indicates not monitoring the PDCCH, a "1" in the last five bits indicates not monitoring the PDCCH in the corresponding two slots, a "0" indicates monitoring the PDCCH in the corresponding two slots, and then 8 bits indicate that the first two groups of terminal devices do not monitor the PDCCH in the first 4 slots and monitor the PDCCH in the last 6 slots; and the last group of terminal equipment does not monitor the PDCCH in 10 slots.

In another embodiment, 8 bits are shown in fig. 10, where "0" in the first three bits indicates monitoring according to the last five bits, and "1" indicates not monitoring the PDCCH; in the last five bits, "1" indicates that the PDCCH is monitored in the corresponding 2 slots, "0" indicates that the PDCCH is not monitored in the corresponding 2 slots, and then the 8 bits indicate that the PDCCH is monitored in the first 4 slots by the first two groups of terminal devices and the PDCCH is not monitored in the last 6 slots; and the last group of terminal equipment monitors the PDCCH in 10 slots.

Of course, the 8 bits shown in fig. 10 may also have other embodiments according to different meanings of values, which is not limited in this application.

The above examples may be preconfigured by the terminal and the base station, or the base station may indicate the terminal through signaling.

Case a2, where the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the frequency domain resource information; the terminal device information may be information of C groups of terminal devices, and the frequency domain resource information may be information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

In an example of this case a2, the first indication field may include C bits, the C bits being respectively used for indicating the C groups of terminal devices, the second indication field may include D bits, the D bits being respectively used for indicating the D groups of carriers; a C bit of the C bits and a D bit of the D bits jointly indicate whether a C group terminal device monitors the PDCCH in a D group carrier of the D group carriers; wherein C is an integer from 1 to C, and D is an integer from 1 to D.

For example, the terminal devices are divided into 3 groups (i.e., C is 3), and the carriers (also called cells) configured for each terminal device are divided into two groups, which are respectively indicated by two bits, i.e., D is 2. The 5 bits at this time can be as shown in fig. 11.

In one embodiment, as shown in fig. 11, the first three bits "001" each correspond to a group of terminal devices, where "0" indicates that the corresponding group of terminal devices does not monitor the PDCCH in all cells, and "1" indicates that monitoring is performed according to the last two bits "10". Specifically, each bit in the last 2 bits "10" corresponds to a group of cells, where "1" indicates that the PDCCH is monitored in the corresponding group of cells, and "0" indicates that the PDCCH is not monitored in the corresponding group of cells. The 5 bits indicate that the first two groups of terminal devices skip the whole first time interval (which may be determined by a monitoring period, for example, the monitoring period is 10 slots, and at this time, the first time interval may also be 10 slots), that is, the PDCCH is not monitored in all the cells, and the last group of terminal devices monitor the PDCCH in the first group of cells, skip the monitoring of the second group of cells, that is, the PDCCH is not monitored in the second group of cells.

In another embodiment, as shown in fig. 11, in the first three bits, "0" indicates that the PDCCH is monitored according to the second two bits, "10", and "1" indicates that the set of terminal devices do not monitor the PDCCH in all cells, and "1" indicates that the PDCCH is not monitored in a corresponding set of cells, and "0" indicates that the PDCCH is monitored in a corresponding set of cells. Then 5 bits indicate that the first two groups of terminal devices do not monitor the PDCCH in the first group of cells and monitor the PDCCH in the second group of cells; and the last group of terminal equipment does not monitor the PDCCH in all cells.

In another embodiment, "0" in the first three bits indicates monitoring according to the second two bits, "10", and "1" indicates that the set of terminal devices monitors PDCCH in all cells, and "1" in the second two bits indicates that PDCCH is not monitored in the corresponding set of cells, and "0" indicates PDCCH is monitored in the corresponding set of cells. Then 5 bits indicate that the first two groups of terminal devices do not monitor the PDCCH in the first group of cells and monitor the PDCCH in the second group of cells; and monitoring the PDCCH in all the cells by the last group of terminal equipment.

Of course, the bits shown in fig. 11 may also have other embodiments according to different meanings of values, and the present application does not limit this.

The cell group of the terminal device is configured by the network device, and different terminal devices can be configured differently. For example, the terminal device 1 has 4 cells, and may configure cell 1 and cell 2 as a first group, and cell 3 and cell 4 as a second group; the terminal device 2 has 3 cells, cell 1 is a group, and cell 2and cell 3 are a second group.

Case a3, the at least two indication fields are two indication fields, the first indication field indicates the frequency domain resource information, the second indication field indicates the time resource information; the frequency domain resource information is information of an E group carrier configured by the terminal device, the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

In an example of this case a3, the first indication field includes E bits, the E bits are respectively used for indicating the E groups of carriers, the second indication field includes F bits, the F bits are respectively used for indicating the F fourth sub-time intervals; an E-th bit of the E bits and an F-th bit of the F bits collectively indicate whether the terminal device monitors the PDCCH on an E-group carrier in an F-th sub-time interval of the first time interval; wherein E is an integer from 1 to E, and F is an integer from 1 to F.

For example, the first time interval includes 10 slots, and is divided into 5 fourth sub-time intervals, each of which is 2 slots, and is indicated by 5-bit, i.e. F is 5. The configured carriers (i.e., cells) of each terminal device are divided into two groups, and are respectively indicated by two bits, i.e., E is 2. The 7 bits at this time can be as shown in fig. 12.

In one embodiment, as shown in fig. 12, the first two bits "10" each correspond to a group of cells, where "0" indicates that the terminal device skips 10 slots in the corresponding group of cells, and "1" indicates that the terminal device monitors according to the last 5 bits "11000" in the corresponding group of cells. Specifically, each bit in the last five bits "11000" sequentially corresponds to two slots, where "0" indicates that the PDCCH corresponding to the two slots is not monitored, "1" indicates that the PDCCH corresponding to the two slots is monitored, and then 7 bits indicate that the terminal device skips the whole first time interval (i.e., 10 slots) on the second group of cells, that is, the terminal device does not monitor the PDCCH in the first time interval (i.e., in all the fourth sub-time intervals) when the terminal device is in the second group of cells, and on the first group of cells, the terminal device monitors the PDCCH in the first 4 slots and does not monitor the PDCCH in the last 6 slots.

In an embodiment, in the 7 bits shown in fig. 12, "1" in the first two bits indicates that the terminal device does not monitor the PDCCH in the corresponding set of cells, "0" indicates that the terminal device monitors in the corresponding set of cells according to the last 5 bits "11000"; in the last 5 bits, "0" indicates that the PDCCH corresponding to the two slots is monitored, and "1" indicates that the PDCCH corresponding to the two slots is not monitored, then 7 bits indicate that the terminal device does not monitor the PDCCH in the first time interval (i.e., in all the fourth sub-time intervals) on the first group of cells; and the terminal equipment does not monitor the PDCCH in the first 4 slots and monitors the PDCCH in the last 6 slots in the second group of cells.

In an embodiment, in the 7 bits shown in fig. 12, "1" in the first two bits indicates that the terminal device monitors the PDCCH in all slots in the corresponding set of cells, "0" indicates that the terminal device monitors in the corresponding set of cells according to the last 5 bits "11000"; in the last 5 bits, "0" indicates that the PDCCHs corresponding to the two slots are monitored, and "1" indicates that the PDCCHs corresponding to the two slots are not monitored, then 7-bit terminal devices monitor the PDCCHs in the first time interval (i.e., in all the fourth sub-time intervals) on the first group of cells; and the terminal equipment does not monitor the PDCCH in the first 4 slots and monitors the PDCCH in the last 6 slots in the second group of cells.

Of course, the 7 bits shown in fig. 12 may also have other embodiments according to different meanings of values, which is not limited in this application.

In case a4, the at least two indication fields are three indication fields, a first indication field indicates the terminal device information, a second indication field indicates the frequency domain resource information, and a third indication field indicates the time resource information; the terminal device information may be information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

In an example of this case a4, the first indication field includes G bits, the G bits are respectively used for indicating the G groups of terminal devices, the second indication field includes H bits, the H bits are respectively used for indicating the E groups of carriers, the third indication field includes I bits, the I bits are respectively used for indicating the I fifth sub-time intervals; a G-th bit of the G bits, an H-th bit of the H bits, and an I-th bit of the I bits, which collectively indicate whether a G-th group of terminal devices monitors the PDCCH in an I-th sub-time interval of the first time interval when the G-th group of terminal devices is on an H-th carrier; wherein G is taken as an integer from 1 to G, H is taken as an integer from 1 to H, and I is taken as an integer from 1 to I.

For example, the first time interval comprises 10 slots, divided into 5 segments of 2 slots each, indicated with 5-bits, i.e. I equals 5. The terminal devices are divided into 2 groups and are respectively indicated by two bits, namely G is 2. The carriers (i.e., cells) configured for each terminal device are divided into two groups, which are respectively indicated by two bits, i.e., H is 2. At this time 9 bits can be as shown in fig. 13.

In an embodiment, as shown in fig. 13, the 9 bits, the first 2 bits "10", each bit corresponds to a group of terminal devices, where "0" indicates that the corresponding group of terminal devices skips 10 slots in all cells, that is, 10 slots do not monitor the PDCCH in all cells, and "1" indicates that the corresponding group of terminal devices monitors according to the last 7 bits. Each of the first 2 bits "10" of the last 7 bits corresponds to a group of cells, where "1" indicates 10 slots are skipped over the corresponding group of cells and "0" indicates monitoring according to the last 5 bits "11000" over the corresponding group of cells. Each bit in the last 5 bits "11000" corresponds to two slots in turn, where "1" indicates that the PDCCH is monitored in the corresponding two slots, and "0" indicates that the PDCCH is not monitored in the corresponding two slots. Then 9 bits indicate that the second group of terminal devices skips the entire first time interval (i.e. 10 slots) on all cells, i.e. the second group of terminal devices do not monitor the PDCCH in said first time interval on all cells. The first group of terminal equipment also skips the whole first time interval on the first group of cells, namely does not monitor the PDCCH in the first time interval in the first group of cells; on the second group of cells, the first 4 slots monitor the PDCCH, and the last 6 slots do not monitor the PDCCH.

In an embodiment, in 9 bits shown in fig. 13, "0" in the first two bits indicates that a corresponding group of terminal devices monitors according to the last 7 bits, and "1" indicates that the corresponding group of terminal devices skips 10 slots in all cells, that is, 10 slots do not monitor a PDCCH in all cells; a "1" in the first two bits of the last 7 bits indicates that monitoring is performed according to the corresponding last 5 bits "11000", and a "0" indicates that 10 slots are skipped over the corresponding group of cells; a "1" in the last 5 bits indicates that the PDCCH is not monitored in the corresponding two slots, and a "0" indicates that the PDCCH is monitored in the corresponding two slots. Then 9 bits indicate that the first group of terminal devices do not monitor the PDCCH in all cells within the first time interval; the second group of terminal equipment does not monitor the PDCCH in the first 4 slots and does not monitor the PDCCH in the last 6 slots in the first group of cells; not monitoring PDCCH during the first time interval in a second set of cells.

Of course, the 9 bits shown in fig. 13 may also have other embodiments according to different meanings of values, which is not limited in this application.

In case a5, the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement is required; the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

In one example of this case a5, the first indication field comprises 1 bit and the second indication field comprises 1 bit; 1 bit of the first indication domain indicates the terminal device to monitor or not monitor the PDCCH in the first time interval through different values; and the 1 bit of the second indication domain indicates the terminal equipment to perform or not perform CSI measurement and feedback through different values.

For example, if the first indication information is '00', it indicates that the terminal device does not need to monitor the PDCCH and does not perform CSI measurement/feedback; if the first indication information is '01', it indicates that the terminal device does not need to monitor the PDCCH but needs to perform CSI measurement/feedback.

Of course, the first indication information may also be '00', which indicates that the terminal device needs to monitor the PDCCH and also needs to perform CSI measurement/feedback; the first indication information is '01', which indicates that the terminal device needs to monitor the PDCCH but does not need to perform CSI measurement/feedback.

In case a6, the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement is required; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

In an example of this case a6, the first indication field includes J bits, the J bits are respectively used for indicating the J sixth sub-time intervals, and the second indication field includes 1 bit; the jth bit of the J bits and 1 bit of the second indication field jointly indicate whether the terminal device monitors the PDCCH and performs CSI measurement and feedback in the jth and sixth sub-time intervals of the first time interval; where J is an integer from 1 to J.

For example, the first time interval is 10 slots, and is divided into 5 sixth sub-time intervals, and each sixth sub-time interval includes 2 slots, which are indicated by 5-bits, i.e., J is 5. Whether to perform CSI measurement/feedback is indicated with 1 bit.

At this time, 6 bits may be as shown in fig. 14, in an embodiment, 6 bits shown in fig. 14, each of the first 5 bits "11000" corresponds to 2 slots in sequence, where "0" indicates that the PDCCH corresponding to 2 slots is not monitored, and "1" indicates that the PDCCH corresponding to 2 slots is monitored; the last 1 bit "1" indicates to perform CSI measurement/feedback, then 6 bits may indicate that the terminal device monitors the PDCCH and performs CSI measurement/feedback in the first 4 slots, and the last 6 slots may not monitor the PDCCH but need to perform CSI measurement/feedback.

In another embodiment, in the 6 bits shown in fig. 14, "0" in the first 5 bits indicates that the PDCCH corresponding to 2 slots is monitored, and "1" indicates that the PDCCH corresponding to 2 slots is not monitored; the last 1 bit "1" indicates that CSI measurement/feedback is not required. Then 6 bits indicate that the terminal device does not monitor the PDCCH and does not perform CSI measurement/feedback in the first 4 slots, and the last 6 slots monitor the PDCCH, but do not need to perform CSI measurement/feedback.

Of course, the bits shown in fig. 14 may also have other embodiments according to different meanings of values, and the present application does not limit this.

At this time, the 6 bits may also be as shown in fig. 15, in an embodiment, in the 6 bits shown in fig. 15, each of the first 5 bits "11000" sequentially corresponds to 2 slots, where "0" indicates that the PDCCH corresponding to 2 slots is not monitored, and "1" indicates that the PDCCH corresponding to 2 slots is monitored; the last 1 bit "0" indicates that CSI measurement/feedback needs to be performed. When the bits in the current 5 bits indicate that the PDCCH is not monitored, it can be directly determined that CSI measurement/feedback is not required, and it is not required to determine whether CSI measurement/feedback is required according to the indication of the next bit. Then 6 bits indicate that the terminal device monitors the PDCCH and performs CSI measurement/feedback in the first 4 slots, and the last 6 slots may not monitor the PDCCH and do not need to perform CSI measurement/feedback.

In another embodiment, in the 6 bits shown in fig. 15, "0" in the first 5 bits indicates that the PDCCH corresponding to 2 slots is monitored, and "1" indicates that the PDCCH corresponding to 2 slots is not monitored; the last 1 bit "0" indicates that CSI measurement/feedback needs to be performed. When the bits in the current 5 bits indicate that the PDCCH is not monitored, it can be directly determined that CSI measurement/feedback is not required, and it is not required to determine whether CSI measurement/feedback is required according to the indication of the next bit. Then 6 bits indicate that the terminal device does not monitor the PDCCH and does not perform CSI measurement/feedback in the first 4 slots, and the last 6 slots monitor the PDCCH but need to perform CSI measurement/feedback.

Of course, the 6 bits shown in fig. 15 may also have other embodiments according to different meanings of values, which is not limited in this application.

It should be noted that, in the 6 cases shown in a1 to a6, the specific number of bits and the indication method of each indication field are only an example, and may also be indicated by other methods, and the present application is not limited to this.

In a specific embodiment, the first indication information may be transmitted through first DCI, where a format of the first DCI may be format2_0, format2_ 2, or format2_ 3.

Specifically, the first indication information is included in a first field of the first DCI; wherein:

in an example, when the format of the first DCI is format2_0, the first field may be a field next to a slot structure indication information field (slot structure indication) in the first DCI, that is, a skip indication (skip indication) is located after a dynamic slot structure indication information (slot structure indication), for example, as shown in fig. 16. In this case, the first field is a field (field) newly added later on the basis of the existing DCI.

In another example, when the format of the first DCI is format2_ 2 or format2_ 3, the first field may be a field next to the TPC indication information field (TPC indication) in the first DCI, that is, the skiping indication is located after the TPC indication information (TPC indication), as shown in fig. 17. In this case, the first field is a field (field) newly added later on the basis of the existing DCI. Here, since the formats of the format2_ 2and the format2_ 3 are substantially the same, examples of the format2_ 2and the format2_ 3 may be illustrated by fig. 17.

In another example, when the format of the first DCI is format2_ 2 or format2_ 3, because format2_ 2 or format2_ 3 includes indication information of a plurality of UEs, bits in the specific DCI are divided into a plurality of bit sets, and the plurality of bit sets are in one-to-one correspondence with the UEs, at this time, an additional field (field) may be added in the own bit set of a certain UE. Exemplarily, the first field is a next field of a TPC indication information field (TPC indication) for the terminal device, where a schematic diagram taking format2_ 2 as an example is shown in fig. 18. At this time, the first field is a field added after the TPC indication of each terminal device, that is, the skiping indication is added to the TPC indication of each UE.

By adopting the method for monitoring the PDCCH provided by the embodiment of the application, the terminal equipment can definitely monitor the PDCCH by indicating the mode that the terminal equipment monitors the PDCCH through the first indication information, so that the PDCCH monitoring can be reduced, and the power consumption of the terminal equipment is reduced.

Based on the above description, the embodiment of the present application further provides another PDCCH monitoring method, which is applicable to the communication system shown in fig. 1. Referring to fig. 19, the specific process of the method may include:

step 1901: the network equipment generates first indication information, wherein the first indication information comprises at least two indication fields, and any one of the indication fields is used for indicating one of the following items: terminal device information, time resource information, frequency domain resource information, or whether CSI measurement is required.

Step 1902: and the network equipment sends the first indication information to terminal equipment.

Step 1903: and the terminal equipment executes corresponding operation according to the indications of the at least two indication domains of the first indication information.

Specifically, the detailed descriptions of the at least two indication fields included in the first indication information may be referred to the specific descriptions in the case a1 to the case a6 in the embodiment shown in fig. 5, and are not described in detail here.

By adopting the method for monitoring the PDCCH provided by the embodiment of the application, the operation to be executed by the terminal equipment can be determined through the first indication information, so that the power consumption of the terminal equipment can be saved.

In addition, the embodiments of the present application make some other descriptions:

currently, in the prior art, a base station may send indication information to a UE, indicating a dormant behavior (dormant beacon) of the UE on a secondary cell (SCell). Specifically, on each SCell, the UE may be configured with 1 dormant bandwidth part (dormant BWP) and at least 1 non-dormant BWP (non-dormant BWP). When the UE receives the instruction of the base station to execute the dormant beacon, the UE is switched to dormant BWP to work; when the UE receives the indication of the base station to execute the non-downlink beacon, the UE switches to the non-downlink BWP to work.

If further, the base station may further indicate PDCCH clipping (i.e. the first indication information) to the UE, what relationship between the downlink channel and the PDCCH clipping is, that is, when the UE receives two indications at the same time, what the UE behaves, which provides two possible approaches:

the method comprises the following steps: PDCCH blanking controls the UE behavior on all cells. The behavior of the UE monitoring the PDCCH on the primary cell (PCell) is not affected by the indication of the downlink channel, so the PDCCH skiping can at least indicate whether the UE monitors the PDCCH on the PCell.

If a certain SCell is in a non-direct state (i.e. the UE works on non-direct BWP in the SCell), the UE receives a skip indication indicating that PDCCH monitoring needs to be skipped for a period of time, and the UE also skips PDCCH monitoring for the corresponding time on the SCell.

If a certain SCell is in the dormant state (i.e., the UE is operating on dormant BWP in the SCell), the UE itself does not monitor PDCCH. And the UE receives the skiping indication to indicate that PDCCH monitoring needs to be skipped for a period of time, and then the UE keeps the normal state on the SCell.

For example, the UE has 5 cells, where cell 1 is Pcell and cells 2 to 5 are scells. The UE operates on the non-dormant BWP of cell 2and cell 3 and on the dormant BWP of cell 4 and cell 5. If the UE receives PDCCH skiping indication information in the time slot n, the indication information indicates that the UE does not monitor the PDCCH in the next m time slots. The UE does not monitor the PDCCH on all cells from slot n to slot (n + m). In cell 2and cell 3, the UE does not switch to the dormant BWP, but remains on the non-dormant BWP, and only does not perform the PDCCH monitoring operation.

The second method comprises the following steps: PDCCH blanking controls the behavior of the UE on cells not configured with the dormant behavior. The behavior of the UE monitoring the PDCCH on the PCell is not affected by the indication of the downlink channel, so the PDCCH skiping may at least indicate whether the UE monitors the PDCCH on the PCell. For scells, one indication method is to group scells, with several bits to indicate whether UE on each SCell group monitors PDCCH or not, respectively. At this time, if a certain SCell does not belong to any group, the behavior of the UE monitoring the PDCCH on the SCell is also not controlled by the dormancy indication. The cell may be controlled by a skiping indication.

For example, the UE has 6 cells, where cell 1 is Pcell and cells 2 to 6 are scells. Therein, cell 2and cell 3 are grouped into one group, and cell 4 and cell 5 are grouped into one group. There are 2 bits indicating the dormant channels of the two groups of cells, respectively. The UE's behavior in monitoring PDCCH on cell 6 is not affected by the dormant beacon indication. If the UE receives PDCCH skiping indication information in the time slot n, the indication information indicates that the UE does not monitor the PDCCH in the next m time slots. The UE does not monitor the PDCCH on cell 1 and cell 6 during slot n to slot (n + m). The indication does not affect the behavior of the UE in monitoring the PDCCH on cell 2-cell 5.

Based on the above embodiments, the present application further provides an apparatus, and referring to fig. 20, the apparatus 2000 may include a transceiver 2001 and a processing unit 2002. The transceiver 2001 is configured to receive information (message or data) or transmit information (message or data) by the apparatus 2000, and the processing unit 2002 is configured to control and manage an operation of the apparatus 2000. The processing unit 2002 may also control the steps performed by the transceiver unit 2001.

For example, the apparatus 2000 may specifically be the terminal device in the foregoing embodiments, a processor in the terminal device, or a chip system, or a functional module; alternatively, the apparatus 2000 may specifically be the network device in the foregoing embodiments, a processor of the network device, or a chip system, or a functional module.

In an embodiment, when the apparatus 2000 is used to implement the functions of the terminal device in the embodiment described in fig. 4, the method may specifically include: the transceiver 2001 is configured to receive first indication information from a network device, where the first indication information is used to indicate that a terminal device does not monitor a PDCCH carrying downlink control information DCI of a specific format; the DCI of the specific format is partial DCI in the current DCI of all formats; the processing unit 2002 is configured to determine not to monitor a PDCCH carrying the DCI of the specific format according to the first indication information.

In another embodiment, when the apparatus 2000 is used to implement the functions of the network device in the embodiment described in fig. 4, the method may specifically include: the processing unit 2002 is configured to generate first indication information, where the first indication information is used to indicate that a terminal device does not monitor a PDCCH carrying downlink control information DCI of a specific format; the DCI of the specific format is partial DCI in the current DCI of all formats; the transceiver 2001 is configured to send the first indication information to the terminal device.

In an alternative embodiment, the specific format does not include at least one of: format2_0, format2_ 2, format2_ 3.

Illustratively, the specific format is at least one of: format 0_0, format 0_1, format 0_2, format 1_0, format 1_1, format 1_ 2.

In an embodiment, when the apparatus 2000 is used to implement the functions of the terminal device in the embodiment described in fig. 5, the method may specifically include: the transceiver 2001 is configured to receive first indication information from a network device, where the first indication information is used to indicate a mode of monitoring a PDCCH by a terminal device; the processing unit 2002 is configured to determine, according to the first indication information, a manner of monitoring the PDCCH in a first time interval, where the first time interval is determined according to a monitoring period of the first indication information. In addition, the transceiver 2001 may also implement other transceiving operations performed by the terminal device in the embodiment shown in fig. 5; the processing unit 2002 may also implement other operations performed by the terminal device in the embodiment shown in fig. 5, in addition to the transceiving operations. The detailed description can be referred to the description of the embodiment shown in fig. 5, and will not be described in detail here.

In another embodiment, when the apparatus 2000 is used to implement the function of the network device in the embodiment described in fig. 5, the method may specifically include: the processing unit 2002 is configured to generate first indication information, where the first indication information is used to indicate a manner in which a terminal device monitors a PDCCH; the transceiver 2001 is configured to send the first indication information to the terminal device. In addition, the transceiver 2001 may also implement other transceiving operations performed by a network device in the embodiment shown in fig. 5; the processing unit 2002 may also implement operations other than the transceiving operations performed by the network device in the embodiment shown in fig. 5. The detailed description can be referred to the description of the embodiment shown in fig. 5, and will not be described in detail here.

In an embodiment, when the apparatus 2000 is used to implement the functions of the terminal device in the embodiment described in fig. 19, the method may specifically include: the transceiving unit 2001 is configured to receive first indication information from a network device, where the first indication information includes at least two indication fields, and any one of the indication fields is configured to indicate one of the following: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not; the processing unit 2002 is configured to perform a corresponding operation according to the indications of the at least two indication fields of the first indication information.

In an embodiment, when the apparatus 2000 is used to implement the functions of the terminal device in the embodiment described in fig. 19, the method may specifically include: the processing unit 2002 is configured to generate first indication information, where the first indication information includes at least two indication fields, and any one of the indication fields is configured to indicate one of the following: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not; the transceiver 2001 is configured to send the first indication information to a terminal device.

For the description of the at least two indication fields, reference may be made to the specific description in the above embodiments, and details are not repeated here.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. The functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Based on the above embodiments, the present application further provides an apparatus, and as shown in fig. 21, an apparatus 2100 may include a transceiver 2101 and a processor 2102. Optionally, the apparatus 2100 may further include a memory 2103. The memory 2103 may be disposed inside the apparatus 2100 or outside the apparatus 2100. Wherein the processor 2102 may control the transceiver 2101 to receive and transmit data.

Specifically, the processor 2102 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor 2102 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.

Wherein, the transceiver 2101, the processor 2102 and the memory 2103 are connected to each other. Optionally, the transceiver 2101, the processor 2102 and the memory 2103 are connected to each other via a bus 2104; the bus 2104 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 21, but this does not mean only one bus or one type of bus.

In an alternative embodiment, the memory 2103 is used for storing programs and the like. In particular, the program may include program code comprising computer operating instructions. The memory 2103 may include RAM and may also include non-volatile memory (non-volatile memory), such as one or more disk memories. The processor 2102 executes the application program stored in the memory 2103 to implement the above-described functions, thereby implementing the functions of the apparatus 2100.

The apparatus 2100 may be, for example, a terminal device in the above embodiments; but also the network device in the above embodiment.

In one embodiment, when the apparatus implements the functions of the terminal device in the embodiment shown in fig. 4, the transceiver 2201 may implement the transceiving operations performed by the terminal device in the embodiment shown in fig. 4; the processor 2201 may implement other operations than the transceiving operations performed by the terminal device in the embodiment shown in fig. 4. The detailed description of the embodiment shown in fig. 4 can be referred to the above description, and will not be described in detail here.

In another embodiment, when the apparatus implements the functions of the network device in the embodiment shown in fig. 4, the transceiver 2201 may implement the transceiving operations performed by the network device in the embodiment shown in fig. 4; the processor 2201 may perform operations other than transceiving operations performed by the network device in the embodiment shown in fig. 4. The detailed description of the embodiment shown in fig. 4 can be referred to the above description, and will not be described in detail here.

In another embodiment, when the apparatus implements the functions of the terminal device in the embodiment shown in fig. 5, the transceiver 2201 may implement the transceiving operations performed by the terminal device in the embodiment shown in fig. 5; the processor 2201 may implement other operations than the transceiving operations performed by the terminal device in the embodiment shown in fig. 5. The detailed description of the embodiment shown in fig. 5 can be referred to the above description, and will not be described in detail here.

In another embodiment, when the apparatus implements the functions of the network device in the embodiment shown in fig. 5, the transceiver 2201 may implement the transceiving operations performed by the network device in the embodiment shown in fig. 5; the processor 2201 may perform operations other than transceiving operations performed by the network device in the embodiment shown in fig. 5. The detailed description of the embodiment shown in fig. 5 can be referred to the above description, and will not be described in detail here.

In another embodiment, when the apparatus implements the functions of the terminal device in the embodiment shown in fig. 19, the transceiver 2201 may implement the transceiving operations performed by the terminal device in the embodiment shown in fig. 19; the processor 2201 may implement other operations than the transceiving operations performed by the terminal device in the embodiment shown in fig. 19. The detailed description of the embodiment shown in fig. 19 can be referred to the above description, and will not be described in detail here.

In another embodiment, when the apparatus implements the functions of the network device in the embodiment shown in fig. 19, the transceiver 2201 may implement the transceiving operations performed by the network device in the embodiment shown in fig. 19; the processor 2201 may perform operations other than transceiving operations performed by the network device in the embodiment shown in fig. 19. The detailed description of the embodiment shown in fig. 19 can be referred to the above description, and will not be described in detail here.

In conjunction with the above, the present application provides the following examples, the numbering of which does not necessarily need to follow the order of the numbering of the previous examples:

embodiment 1, a method for monitoring a PDCCH, comprising:

receiving first indication information from network equipment, wherein the first indication information is used for indicating that terminal equipment does not monitor a PDCCH carrying Downlink Control Information (DCI) with a specific format; the DCI of the specific format is partial DCI in the current DCI of all formats;

and determining not to monitor the PDCCH bearing the DCI with the specific format according to the first indication information.

Embodiment 2, an indication method for PDCCH monitoring, which includes:

generating first indication information, wherein the first indication information is used for indicating that terminal equipment does not monitor a PDCCH carrying Downlink Control Information (DCI) with a specific format; the DCI of the specific format is partial DCI in the current DCI of all formats;

and sending the first indication information to the terminal equipment.

Embodiment 3, the method of embodiment 1 or 2, wherein the particular format does not include at least one of: format2_0, format2_ 2, format2_ 3.

Embodiment 4 the method of any one of embodiments 1 to 3, wherein the specific format is at least one of: format 0_0, format 0_1, format 0_2, format 1_0, format 1_1, format 1_ 2.

Embodiment 5, a method for monitoring a PDCCH, comprising:

receiving first indication information from network equipment, wherein the first indication information is used for indicating a mode of monitoring a PDCCH by terminal equipment;

and determining a mode for monitoring the PDCCH in a first time interval according to the first indication information, wherein the first time interval is determined according to a monitoring period of the first indication information.

Embodiment 6, a method for monitoring a PDCCH, comprising:

generating first indication information, wherein the first indication information is used for indicating a mode of monitoring a PDCCH by terminal equipment;

and sending the first indication information to the terminal equipment.

Embodiment 7, the method of embodiment 5 or 6, wherein the manner of monitoring the PDCCH includes at least one of:

whether to monitor the PDCCH, whether to monitor the PDCCH within a first time interval, whether to monitor the PDCCH within a sub-time interval within the first time interval, whether to monitor the PDCCH for periodic switching, terminal equipment information, time resource information, frequency domain resource information, or whether to perform CSI measurement.

Embodiment 8 is the method according to any of embodiments 5 to 7, wherein the first indication information is located in a first time slot, and a start time of the first time interval is the first time slot, or a start time of the first time interval is a next time slot of a transmission end time of the first indication information in the first time slot; or,

the first indication information is located in a first symbol in a first time slot, and a starting time of the first time interval is a next symbol of the first symbol.

Embodiment 9 or the method according to embodiment 8, wherein the first indication information is located in a first search space, an end time of the first time interval is an end time of a previous time slot of a second time slot, the second time slot is next R monitoring times of the first search space after the first time slot, and R is an integer greater than or equal to 1.

Embodiment 10, the method according to any one of embodiments 5 to 9, wherein the first indication information is indicated by a bit, and when the bit is a first value, the first indication information indicates that the PDCCH is not monitored; when the bit is a second value, the first indication information indicates to monitor the PDCCH.

Embodiment 11 is the method of any of embodiments 5 to 9, wherein the first time interval includes N first sub-time intervals, N being an integer greater than or equal to 2;

the first indication information is indicated by the N bits, and the nth bit is used for indicating whether the terminal device monitors the PDCCH in an nth first sub-time interval, where N is an integer from 1 to N.

Embodiment 12 is the method of any of embodiments 5 to 9, wherein the first time interval includes K second sub-time intervals, K being an integer greater than or equal to 1;

the first indication information is indicated by M x K bits, wherein each bit indicates whether a group of terminal devices monitors the PDCCH in a second sub-time interval, the group of terminal devices is one group of terminal devices in M groups of terminal devices, and M is an integer greater than or equal to 2; the terminal device is included in any one of the M groups of terminal devices.

Embodiment 13 the method of embodiment 7, wherein the first indication information includes at least two indication fields, and any one of the indication fields is used to indicate one of the following: terminal device information, time resource information, frequency domain resource information, or whether CSI measurement is required.

Embodiment 14 the method according to embodiment 13, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors the first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

Embodiment 15 is the method of embodiment 14, wherein the first indication field includes a bits, the a bits are respectively used for indicating the a groups of terminal devices, the second indication field includes B bits, and the B bits are respectively used for indicating the B third sub-time intervals;

an a-th bit of the A bits and a B-th bit of the B bits collectively indicate whether a group a terminal devices monitor the PDCCH in a B-th third sub-time interval within the first time interval, wherein a takes an integer from 1 to A, and B takes an integer from 1 to B.

Embodiment 16 the method according to embodiment 13, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

Embodiment 17 or the method of embodiment 16, wherein the first indication field includes C bits, the C bits are respectively used to indicate the C groups of terminal devices, the second indication field includes D bits, and the D bits are respectively used to indicate the D groups of carriers;

a C bit of the C bits and a D bit of the D bits jointly indicate whether a C group terminal device monitors the PDCCH in a D group carrier of the D group carriers; wherein C is an integer from 1 to C, and D is an integer from 1 to D.

Embodiment 18 the method of embodiment 13, wherein the at least two indication fields are two indication fields, a first indication field indicating the frequency domain resource information, and a second indication field indicating the time resource information; the frequency domain resource information is information of an E group carrier configured by the terminal device, the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

Embodiment 19 and the method of embodiment 18, wherein the first indication field includes E bits, the E bits are respectively used for indicating the E groups of carriers, the second indication field includes F bits, and the F bits are respectively used for indicating the F fourth sub-time intervals;

an E-th bit of the E bits and an F-th bit of the F bits jointly indicate whether the terminal device monitors the PDCCH in an F-th sub-time interval of the first time interval when the terminal device is in an E-group carrier; wherein E is an integer from 1 to E, and F is an integer from 1 to F.

Embodiment 20 is the method of embodiment 13, wherein the at least two indication fields are three indication fields, a first indication field indicates the terminal device information, a second indication field indicates the frequency domain resource information, and a third indication field indicates the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

Embodiment 21 or the method of embodiment 20, wherein the first indication field includes G bits, the G bits are respectively used to indicate the G groups of terminal devices, the second indication field includes H bits, the H bits are respectively used to indicate the E groups of carriers, the third indication field includes I bits, and the I bits respectively indicate the I fifth sub-time intervals;

a G-th bit of the G bits, an H-th bit of the H bits, and an I-th bit of the I bits, which collectively indicate whether a G-th group of terminal devices monitors the PDCCH in an I-th sub-time interval of the first time interval when the G-th group of terminal devices is on an H-th carrier; wherein G is taken as an integer from 1 to G, H is taken as an integer from 1 to H, and I is taken as an integer from 1 to I.

Embodiment 22 the method according to embodiment 13, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

Embodiment 23 the method of embodiment 22, wherein the first indication field comprises 1 bit and the second indication field comprises 1 bit;

1 bit of the first indication domain indicates the terminal device to monitor or not monitor the PDCCH in the first time interval through different values; and the 1 bit of the second indication domain indicates the terminal equipment to perform or not perform CSI measurement and feedback through different values.

Embodiment 24 of the method according to embodiment 13, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

Embodiment 25 the method of embodiment 24, wherein the first indication field includes J bits, the J bits are respectively used to indicate the J sixth sub-time intervals, and the second indication field includes 1 bit;

the jth bit of the J bits and 1 bit of the second indication field jointly indicate whether the terminal device monitors the PDCCH and performs CSI measurement and feedback in the jth and sixth sub-time intervals of the first time interval; where J is an integer from 1 to J.

Embodiment 26 and the method according to any one of embodiments 5 to 25, wherein the first indication information is transmitted through first downlink control information DCI, and formats of the first DCI are format2_0, format2_ 2, and format2_ 3.

Embodiment 27 the method of embodiment 26, wherein the first indication information is included in a first field of the first DCI;

when the format of the first DCI is format2_0, the first field is a next field of a slot structure indication information field in the first DCI; or, when the format of the first DCI is format2_ 2 or format2_ 3, the first field is a next field of a transmission power control TPC indication information field in the first DCI; or, when the format of the first DCI is format2_ 2 or format2_ 3, the first field is a next field of a TPC indication information field for the terminal device.

Embodiment 28, a method for monitoring a PDCCH, comprising:

receiving first indication information from a network device, wherein the first indication information comprises at least two indication fields, and any one of the indication fields is used for indicating one of the following items: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not;

and executing corresponding operation according to the indication of at least two indication fields of the first indication information.

Embodiment 29 discloses a method for monitoring a physical downlink control channel PDCCH, which includes:

generating first indication information, wherein the first indication information comprises at least two indication fields, and any one of the indication fields is used for indicating one of the following items: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not;

and sending the first indication information to the terminal equipment.

Embodiment 30, the method according to embodiment 28 or 29, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors a first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

Embodiment 31 is the method of embodiment 30, wherein the first indication field includes a bits, the a bits are respectively used for indicating the group a terminal devices, the second indication field includes B bits, and the B bits are respectively used for indicating the B third sub-time intervals;

Embodiment 32, the method of embodiment 28 or 29, wherein the at least two indication fields are two indication fields, a first indication field indicating the terminal equipment information, and a second indication field indicating the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

Embodiment 33 the method of embodiment 32, wherein the first indication field includes C bits, the C bits are respectively used to indicate the C groups of terminal devices, the second indication field includes D bits, the D bits are respectively used to indicate the D groups of carriers;

Embodiment 34 the method of embodiment 28 or 29, wherein the at least two indication fields are two indication fields, a first indication field indicating the frequency domain resource information and a second indication field indicating the time resource information; the frequency domain resource information is information of an E-group carrier configured by the terminal device, the time resource information is information of a first time interval whether the terminal device monitors the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

Embodiment 35 the method of embodiment 34, wherein the first indication field includes E bits, the E bits are respectively used for indicating the E groups of carriers, the second indication field includes F bits, and the F bits are respectively used for indicating the F fourth sub-time intervals;

Embodiment 36 the method of embodiment 28 or 29, wherein the at least two indication fields are three indication fields, a first indication field indicating the terminal device information, a second indication field indicating the frequency domain resource information, and a third indication field indicating the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

Embodiment 37 and the method according to embodiment 36, wherein the first indication field includes G bits, the G bits are respectively used to indicate the G groups of terminal devices, the second indication field includes H bits, the H bits are respectively used to indicate the E groups of carriers, the third indication field includes I bits, and the I bits respectively indicate the I fifth sub-time intervals;

Embodiment 38, the method according to embodiment 28 or 29, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of whether the terminal device monitors a first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

Embodiment 39 the method of embodiment 38, wherein the first indication field comprises 1 bit and the second indication field comprises 1 bit;

Embodiment 40, the method according to embodiment 28 or 29, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

Embodiment 41 or the method of embodiment 40, wherein the first indication field includes J bits, the J bits are respectively used to indicate the J sixth sub-time intervals, and the second indication field includes 1 bit;

Embodiment 42 and the method according to any of embodiments 28 to 41, wherein the first indication information is sent through first downlink control information DCI, and formats of the first DCI are format2_0, format2_ 2, and format2_ 3.

Embodiment 43 the method of embodiment 42, wherein the first indication information is included in a first field of the first DCI;

when the format of the first DCI is format2_0, the first field is a next field of a slot structure indication information field in the first DCI; or, when the format of the first DCI is format2_ 2 or format2_ 3, the first field is a next field of a transmission power control TPC indication information field in the first DCI.

Embodiment 44, a terminal device, comprising:

a transceiver unit, configured to receive first indication information from a network device, where the first indication information is used to indicate a terminal device not to monitor a PDCCH carrying downlink control information DCI of a specific format; the DCI of the specific format is partial DCI in the current DCI of all formats;

and the processing unit is used for determining not to monitor the PDCCH bearing the DCI with the specific format according to the first indication information.

Embodiment 45, a network device, comprising:

a processing unit, configured to generate first indication information, where the first indication information is used to indicate that a terminal device does not monitor a PDCCH carrying downlink control information DCI of a specific format; the DCI of the specific format is partial DCI in the current DCI of all formats;

and the transceiving unit is used for sending the first indication information to the terminal equipment.

Embodiment 46, the apparatus of embodiment 44 or 45, wherein the particular format does not include at least one of: format2_0, format2_ 2, format2_ 3.

Embodiment 47, the apparatus of any one of embodiments 44 to 46, wherein the specific format is at least one of: format 0_0, format 0_1, format 0_2, format 1_0, format 1_1, format 1_ 2.

Embodiment 48, a terminal device, comprising:

the terminal equipment comprises a receiving and sending unit, a processing unit and a processing unit, wherein the receiving and sending unit is used for receiving first indication information from network equipment, and the first indication information is used for indicating a mode of monitoring a PDCCH by the terminal equipment;

a processing unit, configured to determine, according to the first indication information, a manner of monitoring a PDCCH in a first time interval, where the first time interval is determined according to a monitoring period of the first indication information.

Embodiment 49, a network device, comprising:

the processing unit is used for generating first indication information, and the first indication information is used for indicating a mode of monitoring the PDCCH by the terminal equipment;

Embodiment 50, the apparatus of embodiment 48 or 49, wherein the manner of monitoring the PDCCH comprises at least one of:

Embodiment 51 is the apparatus according to any of embodiments 48 to 50, wherein the first indication information is located in a first time slot, and a start time of the first time interval is the first time slot, or a start time of the first time interval is a next time slot of a transmission end time of the first indication information in the first time slot; or,

Embodiment 52, the apparatus according to embodiment 51, wherein the first indication information is located in a first search space, an end time of the first time interval is an end time of a previous time slot of a second time slot, the second time slot is next R monitoring times of the first search space after the first time slot, and R is an integer greater than or equal to 1.

Embodiment 53, the apparatus according to any one of embodiments 48 to 52, wherein the first indication information indicates that the PDCCH is not monitored by one bit, and when the bit is a first value; when the bit is a second value, the first indication information indicates to monitor the PDCCH.

Embodiment 54 the apparatus of any of embodiments 48-52, wherein the first time interval comprises N first sub-time intervals, N being an integer greater than or equal to 2;

Embodiment 55 the apparatus of any of embodiments 48-52, wherein the first time interval comprises K second sub-time intervals, K being an integer greater than or equal to 1;

Embodiment 56 the apparatus of embodiment 50, wherein the first indication information includes at least two indication fields, and any one of the indication fields is used to indicate one of the following: terminal device information, time resource information, frequency domain resource information, or whether CSI measurement is required.

Embodiment 57, the apparatus of embodiment 56, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal equipment information, and a second indication field indicates the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors the first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

Embodiment 58 and the device according to embodiment 57, wherein the first indication field includes a bits, the a bits are respectively used to indicate the a groups of terminal devices, the second indication field includes B bits, and the B bits are respectively used to indicate the B third sub-time intervals;

Embodiment 59 the apparatus of embodiment 56, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal equipment information, and a second indication field indicates the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

Embodiment 60 the device of embodiment 59, wherein the first indication field includes C bits, the C bits are respectively used to indicate the C groups of terminal devices, the second indication field includes D bits, the D bits are respectively used to indicate the D groups of carriers;

Embodiment 61 the apparatus of embodiment 56, wherein the at least two indication fields are two indication fields, a first indication field indicates the frequency domain resource information, and a second indication field indicates the time resource information; the frequency domain resource information is information of an E group carrier configured by the terminal device, the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

Embodiment 62, the apparatus of embodiment 61, wherein the first indication field includes E bits, the E bits are respectively used to indicate the E groups of carriers, the second indication field includes F bits, and the F bits are respectively used to indicate the F fourth sub-time intervals;

Embodiment 63, the apparatus of embodiment 56, wherein the at least two indication fields are three indication fields, a first indication field indicates the terminal equipment information, a second indication field indicates the frequency domain resource information, and a third indication field indicates the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

Embodiment 64, the apparatus according to embodiment 63, wherein the first indication field includes G bits, the G bits are respectively used to indicate the G groups of terminal apparatuses, the second indication field includes H bits, the H bits are respectively used to indicate the E groups of carriers, the third indication field includes I bits, and the I bits respectively indicate the I fifth sub-time intervals;

Embodiment 65, the apparatus of embodiment 56, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

Embodiment 66 the apparatus of embodiment 65, wherein the first indication field comprises 1 bit and the second indication field comprises 1 bit;

Embodiment 67 the apparatus according to embodiment 56, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

Embodiment 68 the apparatus of embodiment 67, wherein the first indication field includes J bits, the J bits are respectively used to indicate the J sixth sub-time intervals, and the second indication field includes 1 bit;

Embodiment 69 is the apparatus according to any of embodiments 48 to 68, wherein the first indication information is transmitted via first downlink control information DCI, and formats of the first DCI are format2_0, format2_ 2, and format2_ 3.

Embodiment 70, the apparatus of embodiment 69, wherein the first indication information is included in a first field of the first DCI;

Embodiment 71, a terminal device, comprising:

a transceiver unit, configured to receive first indication information from a network device, where the first indication information includes at least two indication fields, and any one of the indication fields is used to indicate one of the following: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not;

and the processing unit is used for executing corresponding operation according to the indication of the at least two indication domains of the first indication information.

Embodiment 72, a network device, comprising:

a processing unit, configured to generate first indication information, where the first indication information includes at least two indication fields, and any one of the indication fields is configured to indicate one of the following: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not;

Embodiment 73, the apparatus of embodiment 71 or 72, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal equipment information, and a second indication field indicates the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors a first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

Embodiment 74 is the device of embodiment 73, wherein the first indication field includes a bits, the a bits are respectively used for indicating the a groups of terminal devices, the second indication field includes B bits, and the B bits are respectively used for indicating the B third sub-time intervals;

Embodiment 75, the apparatus of embodiment 71 or 72, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal equipment information, and a second indication field indicates the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

Embodiment 76, the apparatus of embodiment 75, wherein the first indication field includes C bits, the C bits are respectively used to indicate the C groups of terminal devices, the second indication field includes D bits, the D bits are respectively used to indicate the D groups of carriers;

Embodiment 77, the apparatus of embodiment 71 or 72, wherein the at least two indication fields are two indication fields, a first indication field indicating the frequency domain resource information, and a second indication field indicating the time resource information; the frequency domain resource information is information of an E-group carrier configured by the terminal device, the time resource information is information of a first time interval whether the terminal device monitors the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

Embodiment 78, the apparatus of embodiment 77, wherein the first indication field includes E bits, the E bits are respectively used for indicating the E groups of carriers, the second indication field includes F bits, and the F bits are respectively used for indicating the F fourth sub-time intervals;

Embodiment 79, the apparatus of embodiment 71 or 72, wherein the at least two indication fields are three indication fields, a first indication field indicating the terminal equipment information, a second indication field indicating the frequency domain resource information, and a third indication field indicating the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

Embodiment 80, the apparatus according to embodiment 79, wherein the first indication field includes G bits, the G bits are respectively used to indicate the G groups of terminal devices, the second indication field includes H bits, the H bits are respectively used to indicate the E groups of carriers, the third indication field includes I bits, and the I bits respectively indicate the I fifth sub-time intervals;

Embodiment 81, the apparatus of embodiment 71 or 72, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of whether the terminal device monitors a first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

Embodiment 82 the apparatus of embodiment 81, wherein the first indication field comprises 1 bit and the second indication field comprises 1 bit;

Embodiment 83, the apparatus of embodiments 71 or 72, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

Embodiment 84 is the apparatus of embodiment 83, wherein the first indication field includes J bits, the J bits are respectively used to indicate the J sixth sub-time intervals, and the second indication field includes 1 bit;

Embodiment 85 and the apparatus according to any of embodiments 71 to 84, wherein the first indication information is sent via first downlink control information DCI, and formats of the first DCI are format2_0, format2_ 2, and format2_ 3.

Embodiment 86 the apparatus of embodiment 85, wherein the first indication information is included in a first field of the first DCI;

Embodiment 87, a terminal device, comprising:

the memory is used for storing computer instructions;

the transceiver is used for transceiving data or information;

the processor is coupled to the memory, and is configured to invoke the computer instructions in the memory to cause the terminal device to perform the method according to any one of embodiments 1, 3, and 4.

Embodiment 88, a network device, comprising:

the memory is used for storing computer instructions;

the transceiver is used for transceiving data or information;

the processor is coupled to the memory for invoking computer instructions in the memory to cause the network device to perform the method of any of embodiments 2-4 above.

Embodiment 89, a terminal device, comprising:

the memory is used for storing computer instructions;

the transceiver is used for transceiving data or information;

the processor is coupled to the memory and is configured to invoke the computer instructions in the memory to cause the terminal device to perform the method according to any one of the embodiments 5 and 7-27.

Embodiment 90, a second apparatus, comprising:

the memory is used for storing computer instructions;

the transceiver is used for transceiving data or information;

a processor is coupled to the memory for invoking computer instructions in the memory to cause the network device to perform the method of any of embodiments 6-27 above.

Embodiment 91, a terminal device, comprising:

the memory is used for storing computer instructions;

the transceiver is used for transceiving data or information;

the processor is coupled to the memory and is configured to invoke the computer instructions in the memory to cause the terminal device to perform the method according to any of embodiments 28 and 30-43.

Embodiment 92, a network device, comprising:

the memory is used for storing computer instructions;

the transceiver is used for transceiving data or information;

the processor is coupled to the memory for invoking computer instructions in the memory to cause the network device to perform the method of any of embodiments 29-43 above.

Embodiment 93, a communication system, comprising:

the network equipment is used for generating first indication information, wherein the first indication information is used for indicating the terminal equipment not to monitor the PDCCH bearing the downlink control information DCI with a specific format; the DCI of the specific format is partial DCI in the current DCI of all formats; and

sending the first indication information to the terminal equipment;

and the terminal equipment is used for determining not to monitor the PDCCH bearing the DCI with the specific format according to the first indication information.

Embodiment 94 the communication system of embodiment 93, wherein the specific format does not include at least one of: format2_0, format2_ 2, format2_ 3.

Embodiment 95 is the communication system of any of embodiments 1 to 3, wherein the specific format is at least one of: format 0_0, format 0_1, format 0_2, format 1_0, format 1_1, format 1_ 2.

Embodiment 96, a communication system, comprising:

the network equipment is used for generating first indication information, and the first indication information is used for indicating a mode of monitoring the PDCCH by the terminal equipment; and

sending the first indication information to the terminal equipment;

and the terminal device is used for determining a mode for monitoring the PDCCH in a first time interval according to the first indication information, wherein the first time interval is determined according to the monitoring period of the first indication information.

Embodiment 97 the communication system of embodiment 96, wherein the manner of monitoring the PDCCH includes at least one of:

Embodiment 98 is the communication system according to any of embodiments 96 to 97, wherein the first indication information is located in a first time slot, and a start time of the first time interval is the first time slot, or a start time of the first time interval is a next time slot of a transmission end time of the first indication information in the first time slot; or,

Embodiment 99 is the communication system of embodiment 98, wherein the first indication information is located in a first search space, an end time of the first time interval is an end time of a previous time slot of a second time slot, the second time slot is next R monitoring times of the first search space after the first time slot, and R is an integer greater than or equal to 1.

Embodiment 100 is the communication system of any of embodiments 96 to 99, wherein the first indication information indicates by one bit, and when the bit is a first value, the first indication information indicates not to monitor the PDCCH; when the bit is a second value, the first indication information indicates to monitor the PDCCH.

Embodiment 101 is the communication system of any of embodiments 96 to 99, wherein the first time interval includes N first sub-time intervals, N being an integer greater than or equal to 2;

Embodiment 102 is the communication system of any of embodiments 96 to 99, wherein the first time interval includes K second sub-time intervals, K being an integer greater than or equal to 1;

Embodiment 103 the communication system of embodiment 97, wherein the first indication information includes at least two indication fields, and any one of the indication fields is used to indicate one of the following: terminal device information, time resource information, frequency domain resource information, or whether CSI measurement is required.

Embodiment 104, the communication system of embodiment 103, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors the first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

Embodiment 105 the communication system of embodiment 104, wherein the first indication field includes a bits, the a bits are respectively used for indicating the group a terminal devices, the second indication field includes B bits, and the B bits are respectively used for indicating the B third sub-time intervals;

Embodiment 106 the communication system of embodiment 103, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal equipment information, and a second indication field indicates the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

Embodiment 107 is the communication system of embodiment 106, wherein the first indication field includes C bits, the C bits are respectively used for indicating the C groups of terminal devices, the second indication field includes D bits, and the D bits are respectively used for indicating the D groups of carriers;

Embodiment 108, the communication system of embodiment 103, wherein the at least two indication fields are two indication fields, a first indication field indicates the frequency domain resource information, and a second indication field indicates the time resource information; the frequency domain resource information is information of an E group carrier configured by the terminal device, the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

Embodiment 109 the communication system of embodiment 108, wherein the first indication field includes E bits, the E bits are respectively used for indicating the E groups of carriers, the second indication field includes F bits, the F bits are respectively used for indicating the F fourth sub-time intervals;

Embodiment 110 is the communication system of embodiment 103, wherein the at least two indication fields are three indication fields, a first indication field indicates the terminal device information, a second indication field indicates the frequency domain resource information, and a third indication field indicates the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

Embodiment 111 the communication system according to embodiment 110, wherein the first indication field includes G bits, the G bits are respectively used to indicate the G groups of terminal devices, the second indication field includes H bits, the H bits are respectively used to indicate the E groups of carriers, the third indication field includes I bits, and the I bits respectively indicate the I fifth sub-time intervals;

Embodiment 112 the communication system of embodiment 103, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

Embodiment 113 the communication system of embodiment 112, wherein the first indication field comprises 1 bit and the second indication field comprises 1 bit;

Embodiment 114, the communication system of embodiment 103, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

Embodiment 115 is the communication system of embodiment 114, wherein the first indication field includes J bits, the J bits are respectively used to indicate the J sixth sub-time intervals, and the second indication field includes 1 bit;

Embodiment 116 is the communication system of any one of embodiments 96 to 115, wherein the first indication information is transmitted via first downlink control information DCI, and formats of the first DCI are format2_0, format2_ 2, and format2_ 3.

Embodiment 117 the communication system of embodiment 116, wherein the first indication information is included in a first field of the first DCI;

Embodiment 118, a communication system, comprising:

the network device is used for generating first indication information, wherein the first indication information comprises at least two indication fields, and any one of the indication fields is used for indicating one of the following items: terminal equipment information, time resource information, frequency domain resource information or whether CSI measurement is required or not; and

sending the first indication information to terminal equipment;

and the terminal equipment is used for executing corresponding operation according to the indications of the at least two indication domains of the first indication information.

Embodiment 119 the communication system of embodiment 118, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal device information, and a second indication field indicates the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors a first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

Embodiment 120 the communication system of embodiment 119, wherein the first indication field includes a bits, the a bits are respectively used to indicate the group a terminal devices, the second indication field includes B bits, and the B bits are respectively used to indicate the B third sub-time intervals;

Embodiment 121, the communication system of embodiment 118, wherein the at least two indication fields are two indication fields, a first indication field indicates the terminal equipment information, and a second indication field indicates the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

Embodiment 122 the communication system as in embodiment 121, wherein the first indication field includes C bits, the C bits are respectively used for indicating the C groups of terminal devices, the second indication field includes D bits, and the D bits are respectively used for indicating the D groups of carriers;

Embodiment 123 is the communication system of embodiment 118, wherein the at least two indication fields are two indication fields, a first indication field indicating the frequency domain resource information, and a second indication field indicating the time resource information; the frequency domain resource information is information of an E-group carrier configured by the terminal device, the time resource information is information of a first time interval whether the terminal device monitors the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

Embodiment 124, the communication system as in embodiment 123, wherein the first indication field includes E bits, the E bits are respectively used for indicating the E groups of carriers, the second indication field includes F bits, and the F bits are respectively used for indicating the F fourth sub-time intervals;

Embodiment 125 the communication system of embodiment 118, wherein the at least two indication fields are three indication fields, a first indication field indicating the terminal device information, a second indication field indicating the frequency domain resource information, and a third indication field indicating the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

Embodiment 126 is the communication system of embodiment 125, wherein the first indication field includes G bits, the G bits are respectively used to indicate the G groups of terminal devices, the second indication field includes H bits, the H bits are respectively used to indicate the E groups of carriers, the third indication field includes I bits, and the I bits respectively indicate the I fifth sub-time intervals;

Embodiment 127 of the communication system as in embodiment 118, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of whether the terminal device monitors a first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

Embodiment 128 the communication system of embodiment 127, wherein the first indication field comprises 1 bit and the second indication field comprises 1 bit;

Embodiment 129 the communication system of embodiment 118, wherein the at least two indication fields are two indication fields, a first indication field indicates the time resource information, and a second indication field indicates whether CSI measurement needs to be performed; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

Embodiment 130 the communication system of embodiment 129, wherein the first indication field comprises J bits, the J bits are respectively used to indicate the J sixth sub-time intervals, and the second indication field comprises 1 bit;

Embodiment 131 and the communication system as in any embodiment of embodiments 118 and 130, wherein the first indication information is sent through first downlink control information DCI, and formats of the first DCI are format2_0, format2_ 2, and format2_ 3.

Embodiment 132 the communication system of embodiment 131, wherein the first indication information is included in a first field of the first DCI;

Embodiment 133 is a chip, wherein the chip is coupled to a memory and configured to read and execute program instructions stored in the memory to implement the method of any of embodiments 1-4, 5-27, or 28-43.

Embodiment 134 is a computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any of embodiments 1-4, 5-27, or 28-43 described above when invoked by the computer.

Embodiment 135, a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the method of any of embodiments 1-4, 5-27, or 28-43 above.

Embodiment 136, a communication device, comprising a plurality of means for implementing the method of any of embodiments 1-43.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A method for monitoring a Physical Downlink Control Channel (PDCCH) is characterized by comprising the following steps:

2. A method for monitoring a Physical Downlink Control Channel (PDCCH) is characterized by comprising the following steps:

and sending the first indication information to the terminal equipment.

3. The method of claim 1 or 2, wherein the manner of monitoring the PDCCH comprises at least one of:

4. The method according to any one of claims 1 to 3, wherein the first indication information is located in a first time slot, and the starting time of the first time interval is the first time slot, or the starting time of the first time interval is the next time slot of the first time slot, where the first indication information transmission ending time is the next time slot of the first time slot; or,

5. The method of claim 4, wherein the first indication information is located in a first search space, an end time of the first time interval is an end time of a previous time slot of a second time slot, the second time slot is the next R monitoring times of the first search space after the first time slot, and R is an integer greater than or equal to 1.

6. The method according to any one of claims 1 to 5,

the first indication information indicates through a bit, and when the bit is a first value, the first indication information indicates not to monitor the PDCCH; when the bit is a second value, the first indication information indicates to monitor the PDCCH.

7. The method according to any one of claims 1 to 5, wherein the first time interval comprises N first sub-time intervals, N being an integer greater than or equal to 2;

8. The method according to any one of claims 1 to 5, wherein the first time interval comprises K second sub-time intervals, K being an integer greater than or equal to 1;

9. The method of claim 3, wherein the first indication information comprises at least two indication fields, any one of the indication fields being used to indicate one of: terminal device information, time resource information, frequency domain resource information, or whether CSI measurement is required.

10. The method of claim 9, wherein the at least two indication fields are two indication fields, a first indication field indicating the terminal device information and a second indication field indicating the time resource information; the terminal device information is information of a group A terminal device, the time resource information is information of whether the group A terminal device monitors the first time interval of the PDCCH, and the first time interval comprises B third sub-time intervals; a is an integer greater than or equal to 1, and B is an integer greater than or equal to 1.

11. The method of claim 10, wherein the first indication field comprises a bits, the a bits being respectively for indicating the a groups of terminal devices, the second indication field comprises B bits, the B bits being respectively for indicating the B third sub-time intervals;

and the a bit of the A bits and the B bit of the B bits indicate whether the a group of terminal devices monitor the PDCCH in a B third sub-time interval in the first time interval, wherein a takes an integer from 1 to A, and B takes an integer from 1 to B.

12. The method of claim 9, wherein the at least two indication fields are two indication fields, a first indication field indicating the terminal device information and a second indication field indicating the frequency domain resource information; the terminal device information is information of C groups of terminal devices, and the frequency domain resource information is information of D groups of carriers configured by each group of terminal devices in the C groups of terminal devices; c is an integer greater than or equal to 1, and D is an integer greater than or equal to 1.

13. The method of claim 12, wherein the first indication field comprises C bits for indicating the C groups of terminal devices, respectively, and the second indication field comprises D bits for indicating the D groups of carriers, respectively;

a C bit of the C bits and a D bit of the D bits indicate whether a C group terminal device monitors the PDCCH in a D group carrier of the D group carriers; wherein C is an integer from 1 to C, and D is an integer from 1 to D.

14. The method of claim 9, wherein the at least two indication fields are two indication fields, a first indication field indicating the frequency domain resource information and a second indication field indicating the time resource information; the frequency domain resource information is information of an E group carrier configured by the terminal device, the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and the first time interval includes F fourth sub-time intervals; e is an integer greater than or equal to 1, and F is an integer greater than or equal to 1.

15. The method of claim 14, wherein the first indication field comprises E bits for indicating the E groups of carriers, respectively, and the second indication field comprises F bits for indicating the F fourth sub-time intervals, respectively;

an E-th bit of the E bits and an F-th bit of the F bits indicate whether the terminal device monitors the PDCCH in an F-th sub-time interval of the first time interval when the terminal device is in an E-group carrier; wherein E is an integer from 1 to E, and F is an integer from 1 to F.

16. The method of claim 9, wherein the at least two indication fields are three indication fields, a first indication field indicating the terminal device information, a second indication field indicating the frequency domain resource information, and a third indication field indicating the time resource information; the terminal device information is information of G groups of terminal devices, the frequency domain resource information is information of H groups of carriers configured by each group of terminal devices in the G groups of terminal devices, the time resource information is information of a first time interval whether the G groups of terminal devices monitor the PDCCH, and the first time interval includes I fifth sub-time intervals; h is an integer greater than or equal to 1, G is an integer greater than or equal to 1, and I is an integer greater than or equal to 1.

17. The method of claim 16, wherein the first indication field comprises G bits for indicating the G groups of terminal devices, respectively, the second indication field comprises H bits for indicating the E groups of carriers, respectively, the third indication field comprises I bits for indicating the I fifth sub-time intervals, respectively;

a G-th bit of the G bits, an H-th bit of the H bits, and an I-th bit of the I bits, indicating whether a G-th group of terminal devices monitors the PDCCH in an I-th sub-time interval of the first time interval when in an H-th group of carriers; wherein G is taken as an integer from 1 to G, H is taken as an integer from 1 to H, and I is taken as an integer from 1 to I.

18. The method of claim 9, wherein the at least two indication fields are two indication fields, a first indication field indicating the time resource information, and a second indication field indicating whether CSI measurements need to be performed; the time resource information is information of whether the terminal device monitors the first time interval of the PDCCH, and whether CSI measurement is required or not is whether the terminal device performs CSI measurement and feedback.

19. The method of claim 18, wherein the first indication field comprises 1 bit and the second indication field comprises 1 bit;

20. The method of claim 9, wherein the at least two indication fields are two indication fields, a first indication field indicating the time resource information, and a second indication field indicating whether CSI measurements need to be performed; the time resource information is information of a first time interval of whether the terminal equipment monitors the PDCCH, the first time interval comprises J sixth sub-time intervals, and whether CSI measurement needs to be carried out or not is whether the terminal equipment carries out CSI measurement and feedback; j is an integer greater than or equal to 1.

21. The method of claim 20, wherein the first indication field comprises J bits for indicating the J sixth sub-time intervals, respectively, and the second indication field comprises 1 bit;

the jth bit of the J bits and 1 bit of the second indication field indicate whether the terminal device monitors the PDCCH and performs CSI measurement and feedback in the jth and sixth sub-time intervals of the first time interval; where J is an integer from 1 to J.

22. The method of any one of claims 1 to 21, wherein the first indication information is transmitted via a first Downlink Control Information (DCI), wherein the format of the first DCI is Format2_0, Format2_ 2, Format2_ 3.

23. The method of claim 22, wherein the first indication information is included in a first field of the first DCI;

24. A terminal device comprising a memory, a processor, and a transceiver, wherein:

the memory is to store computer instructions;

the transceiver is used for receiving and transmitting information;

the processor is coupled to the memory for invoking computer instructions in the memory to cause the terminal device to perform the method of any one of claims 1, 3-23.

25. A network device comprising a memory, a processor, and a transceiver, wherein:

the memory is to store computer instructions;

the transceiver is used for receiving and transmitting information;

the processor, coupled with the memory, to invoke the computer instructions in the memory to cause the network device to perform the method of any of claims 2-23.

26. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-23 when invoked by the computer.

27. A chip coupled to a memory for reading and executing program instructions stored in the memory to implement the method of any one of claims 1-23.