Communication method and apparatus

Abstract

Disclosed in the present application are a communication method and apparatus. The method comprises: a terminal apparatus receiving first information from a network apparatus, wherein the first information is configured to indicate a first configuration, and the first configuration is configured to indicate a first time-domain resource; and the terminal apparatus detecting, only on the first time-domain resource, a first PDCCH from the network apparatus that schedules first signaling. In the present application, the terminal apparatus can detect the first PDCCH only on the first time-domain resource, and does not detect the first PDCCH on a time-domain resource other than the first time-domain resource, thereby reducing power consumption of the terminal apparatus. In addition, the first time-domain resource is configured by the network apparatus for the terminal apparatus, and therefore the network apparatus can send the first PDCCH only on the first time-domain resource, and does not send the first PDCCH on the time-domain resource other than the first time-domain resource, thereby preventing the terminal apparatus from missing the detection of the first PDCCH.

Description

Communication method and apparatus

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202411295376.X, filed on September 13, 2024, and titled “A Communication Method and Apparatus”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular, to a communication method and apparatus. BACKGROUND

[0004] A network device can configure a search space for a terminal device, and the search space can be a set of a group of physical downlink control channel (PDCCH) candidates. The network device can send a PDCCH to the terminal device on the PDCCH candidate, and the terminal device can detect the PDCCH from the network device on the PDCCH candidate, thereby obtaining scheduling information or other control information of a data channel.

[0005] Currently, when the terminal device is in a connected state, the terminal device needs to detect the PDCCH according to the search space configured by the network device to prevent missing the PDCCH of the network device. However, the terminal device detects the PDCCH according to the search space configured by the network device for a long time, which can increase the power consumption of the terminal device. SUMMARY

[0006] Embodiments of the present application provide a communication method and apparatus for reducing terminal power consumption.

[0007] In a first aspect, embodiments of the present application provide a communication method, which can be applied to a terminal apparatus, for example, a terminal device, or other equipment including a terminal device function, or a chip system (or, a chip) or other functional modules, which can realize the function of a terminal device, for example, the chip system or functional modules are arranged in the terminal device. The method comprises: receiving first information from a network apparatus, the first information being used to indicate a first configuration, the first configuration being used to indicate a first time domain resource; and detecting only a first PDCCH scheduling first signaling from the network apparatus on the first time domain resource.

[0008] In the embodiments of the present application, the PDCCH can schedule data or signaling. When the network device configures the time domain resource for the terminal device to detect the PDCCH, the network device can configure the time domain resource for the PDCCH scheduling the signaling, so that the terminal device can detect only the PDCCH scheduling the signaling on the time domain resource, and does not detect the PDCCH scheduling the signaling on the time domain resource outside the time domain resource, thereby achieving more refined energy saving, and thus reducing the power consumption of the terminal device.

[0009] In a possible implementation, the method further includes detecting the first PDCCH from the network device on all resources in the first time domain resource.

[0010] In this implementation, after the network device configures the time domain resource for the terminal device to detect the PDCCH scheduling the signaling, the terminal device can detect the PDCCH scheduling the signaling on all resources in the time domain resource, thereby avoiding missing detection of the PDCCH scheduling the signaling, and ensuring communication reliability.

[0011] In a possible implementation, the method further includes detecting a second PDCCH scheduling first data from the network device on the first time domain resource.

[0012] In this implementation, in addition to detecting the PDCCH scheduling the signaling on the time domain resource for the PDCCH scheduling the signaling, the terminal device can also detect the PDCCH scheduling the data on the time domain resource, thereby improving the utilization of the time domain resource by the terminal device, or reducing the transmission delay of the data, and ensuring the transmission reliability of the data.

[0013] In a possible implementation, the first information further indicates a second configuration, and the second configuration is used to indicate a second time domain resource; the method further includes detecting a second PDCCH scheduling first data from the network device on the second time domain resource.

[0014] In this implementation, when the network device configures the time domain resource for the terminal device to detect the PDCCH, the network device can configure the time domain resource for the PDCCH scheduling the data, so that the terminal device can detect the PDCCH scheduling the data on the time domain resource, thereby reducing the power consumption of the terminal device, and achieving more refined energy saving. Alternatively, since the time domain resource of the PDCCH scheduling the data is configured by the network device for the terminal device, the network device can send the PDCCH scheduling the data to the terminal device on the time domain resource, thereby avoiding missing detection of the PDCCH scheduling the data by the terminal device, and ensuring communication reliability.

[0015] In a possible implementation, the method further includes: detecting the second PDCCH from the network device on part of the second time domain resource.

[0016] In this implementation, the terminal device can determine the arrival time of data using artificial intelligence (AI) or other manners (for example, application layer notification and the like). If the terminal device determines that data arrives within a time range, the terminal device can detect the PDCCH scheduling data on the time domain resource of the PDCCH scheduling data in the time range. If the terminal device determines that no data arrives within a time range, the terminal device can not detect the PDCCH scheduling data on the time domain resource of the PDCCH scheduling data in the time range. In this way, the power consumption of the terminal device can be reduced.

[0017] In a possible implementation, the method further includes: determining a first time, the first time being one or more of a start time, an end time or a duration length of the terminal device detecting the first PDCCH.

[0018] In this implementation, when the network device configures the time domain resource for the terminal device to detect the PDCCH, the network device can configure the time domain resource for the PDCCH scheduling signaling. The terminal device can determine one or more of a start time, an end time or a duration length of the terminal device detecting the PDCCH scheduling signaling, that is, the terminal device determines that the PDCCH scheduling signaling arrives within a time range, so that the terminal device can only detect the PDCCH scheduling signaling from the network device on the time domain resource configured by the PDCCH scheduling signaling within the time range, and does not detect the PDCCH scheduling signaling from the network device on the time domain resource configured by the PDCCH scheduling signaling outside the time range. In this way, the power consumption of the terminal device can be reduced.

[0019] In a possible implementation, the first configuration includes a first parameter and / or a second parameter, the first parameter is used to indicate one or more of a detection period, a period offset, a number of detection slots in each detection period, and a first detection symbol in each detection slot, and the second parameter is used to indicate a first time, the first time being one or more of a start time, an end time or a duration length of the terminal device detecting the first PDCCH.

[0020] In this embodiment, the network device can determine the specific time domain information of the PDCCH for the terminal device to detect the scheduling signaling, i.e., the network device transmits the PDCCH for the scheduling signaling to the terminal device within a time range, and configures the terminal device with the time range (e.g., the second parameter) and the time domain resource of the PDCCH for the scheduling signaling (e.g., the first parameter), so that the terminal device can only detect the PDCCH for the scheduling signaling on the time domain resource of the PDCCH for the scheduling signaling within the time range, and not detect the PDCCH for the scheduling signaling on the time domain resource of the PDCCH for the scheduling signaling outside the time range. Thus, the power consumption of the terminal device can be reduced.

[0021] In a possible implementation, the first time is associated with a second time, and the second time is one or more of a start time, an end time, or a duration length of the terminal device transmitting the first data.

[0022] In this embodiment, a manner of determining one or more of a start time, an end time, or a duration length of the terminal device detecting the PDCCH for the scheduling signaling is provided. For example, the terminal device or the network device can determine one or more of a start time, an end time, or a duration length of the terminal device detecting the PDCCH for the scheduling signaling (i.e., a time range) according to one or more of a start time, an end time, or a duration length of the terminal device transmitting data, e.g., the start time of the terminal device detecting the PDCCH for the scheduling signaling is the start time of the terminal device transmitting data, and the end time of the terminal device detecting the PDCCH for the scheduling signaling is the end time of the terminal device transmitting data. Thus, the terminal device only needs to determine the time of detecting the PDCCH for the scheduling signaling according to the transmission time of data, and the power consumption of the terminal device can be reduced.

[0023] In a possible implementation, the first signaling is associated with the first data.

[0024] In this embodiment, the premise of the network device sending the signaling to the terminal device can be that the terminal device sends data to the network device. For example, the signaling is a radio link control (RLC) status report, and the terminal device receives the RLC status report from the network device only after sending data to the network device, so as to determine the reception of the data according to the RLC status report. Thus, the terminal device can detect the PDCCH for the scheduling signaling only within the time range of transmitting data, so as to reduce the power consumption of the terminal device or not miss the PDCCH for the scheduling signaling.

[0025] In a possible implementation, the first information is further used to indicate a third configuration, where the third configuration is used to indicate a third time domain resource; and the method further includes: detecting a third PDCCH from the network device only on the third time domain resource, where the third PDCCH is used to schedule second signaling, and the second signaling is different from the first signaling.

[0026] In this implementation, different signaling can be configured with different time domain resources, and the terminal device detects PDCCHs from the network device that schedule different signaling on different time domain resources, that is, the terminal device detects a first PDCCH from the network device only on a first time domain resource, where the first PDCCH is used to schedule first signaling; and the terminal device detects a third PDCCH from the network device only on a third time domain resource, where the third PDCCH is used to schedule second signaling. The first time domain resource can be different from the third time domain resource. For example, the first signaling is transmitted less frequently, and therefore the first time domain resource corresponding to the first signaling can be relatively sparse; and the second signaling is transmitted more frequently, and therefore the third time domain resource corresponding to the second signaling can be relatively dense. In this way, the network device can flexibly configure time domain resources for the terminal device to detect PDCCHs that schedule signaling.

[0027] In a possible implementation, the first information is further used to indicate a fourth configuration, where the fourth configuration is used to indicate a first frequency domain resource, and the fourth configuration is associated with the first configuration; and the method further includes: detecting the first PDCCH from the network device only on the first frequency domain resource.

[0028] In this implementation, when the network device configures frequency domain resources for the terminal device to detect PDCCHs, the network device can configure a frequency domain resource for a PDCCH that schedules signaling, so that the terminal device can detect the PDCCH that schedules signaling only on the frequency domain resource, and does not detect the PDCCH that schedules signaling on frequency domain resources other than the frequency domain resource. In this way, the power consumption of the terminal device can be reduced, and more refined energy saving can be implemented. Alternatively, because the frequency domain resource of the PDCCH that schedules signaling is configured by the network device for the terminal device, the network device can transmit the PDCCH that schedules signaling to the terminal device only on the frequency domain resource, and does not transmit the PDCCH that schedules signaling to the terminal device on frequency domain resources other than the frequency domain resource. In this way, the terminal device can avoid missing the PDCCH that schedules signaling, and the communication reliability can be ensured.

[0029] In a possible implementation, the first signaling includes one or more of the following: a radio resource control (RRC) message; a media access control control element (MAC CE); and data plane signaling.

[0030] In this embodiment, various possibilities of signaling are provided, such as RRC message, MAC CE, and data plane signaling. In addition, the signaling can also include other signaling, which is not limited.

[0031] In a second aspect, the embodiments of the present disclosure also provide a communication method, which can be applied to a network device, such as a network equipment, or other equipment including the function of the network equipment, or a chip system (or chip) or other functional module capable of realizing the function of the network equipment, such as being arranged in the network equipment. The method comprises: sending first information to a terminal device, the first information being used to indicate a first configuration, the first configuration being used to indicate a first time domain resource; and sending a first PDCCH scheduling first signaling to the terminal device only on the first time domain resource.

[0032] In a possible implementation, the method further comprises: sending a second PDCCH scheduling first data to the terminal device on the first time domain resource.

[0033] In a possible implementation, the first information is further used to indicate a second configuration, the second configuration being used to indicate a second time domain resource; and the method further comprises: sending a second PDCCH scheduling first data to the terminal device on the second time domain resource.

[0034] In a possible implementation, the second time domain resource is a resource capable of being used for terminal energy saving, or the second time domain resource is a resource used for the terminal device to detect a PDCCH on partial resources.

[0035] In a possible implementation, the first time domain resource is a resource used for the terminal device to detect a PDCCH on all resources.

[0036] In a possible implementation, the first configuration comprises a first parameter and / or a second parameter, the first parameter being used to indicate one or more of a detection period, a period offset, a number of detection slots in each detection period, and a first detection symbol in each detection slot, and the second parameter being used to indicate a first time, the first time being one or more of a start time, an end time, or a duration length of the terminal device detecting the first PDCCH.

[0037] In a possible implementation, the first time is associated with a second time, the second time being one or more of a start time, an end time, or a duration length of the terminal device transmitting first data.

[0038] In a possible implementation, the first signaling is associated with the first data. In a possible implementation, the first signaling is associated with the first data.

[0039] In a possible implementation, the first information is further used to indicate a third configuration, the third configuration being used to indicate a third time domain resource; and the method further includes: sending, to the terminal device, a third PDCCH scheduling second signaling only on the third time domain resource, the second signaling being different from the first signaling.

[0040] In a possible implementation, the first information is further used to indicate a fourth configuration, the fourth configuration being used to indicate a first frequency domain resource, and the fourth configuration being associated with the first configuration; and the method further includes: sending, to the terminal device, the first PDCCH only on the first frequency domain resource.

[0041] In a possible implementation, the first signaling includes one or more of the following: an RRC message; a MAC CE; and data plane signaling.

[0042] The above-mentioned second aspect and the implementation modes thereof have the beneficial effects as described with reference to the first aspect and any of the implementation modes thereof.

[0043] In a third aspect, an embodiment of the present application provides a communication device. The communication device can be the terminal device of the first aspect. The communication device has the functions of the terminal device. The communication device is, for example, a terminal device, or another device including the functions of the terminal device, or a chip system (or a chip) or another functional module, which can implement the functions of the terminal device, and is, for example, arranged in the terminal device. In an optional implementation, the communication device includes a baseband device and a radio frequency device. In another optional implementation, the communication device includes a processing unit (also referred to as a processing module) and a transceiver unit (also referred to as a transceiver module). The transceiver unit can implement the functions of sending and receiving. When the transceiver unit implements the function of sending, it can be referred to as a sending unit (also referred to as a sending module). When the transceiver unit implements the function of receiving, it can be referred to as a receiving unit (also referred to as a receiving module). The sending unit and the receiving unit can be the same functional module, which is referred to as a transceiver unit and can implement the functions of sending and receiving. Alternatively, the sending unit and the receiving unit can be different functional modules, and the transceiver unit refers to these functional modules in general.

[0044] In an optional implementation, the transceiver unit is configured to receive, from a network device, first information used to indicate a first configuration, the first configuration being used to indicate a first time domain resource.

[0045] In an optional implementation, the processing unit is configured to detect, from the network device, a first PDCCH scheduling first signaling only on the first time domain resource.

[0046] In a fourth aspect, an embodiment of the present application provides a communication apparatus. The communication apparatus can be the network apparatus in the second aspect. The communication apparatus has the functions of the network apparatus. The communication apparatus is, for example, a network device, or other device having network device functions, or a chip system (or chip) or other functional module that can realize the functions of the network device, for example, in a network device. In an optional implementation, the communication apparatus includes a baseband apparatus and a radio frequency apparatus. In another optional implementation, the communication apparatus includes a processing unit (also referred to as a processing module) and a transceiver unit (also referred to as a transceiver module). The transceiver unit can realize the sending function and the receiving function. When the transceiver unit realizes the sending function, it can be referred to as a sending unit (also referred to as a sending module). When the transceiver unit realizes the receiving function, it can be referred to as a receiving unit (also referred to as a receiving module). The sending unit and the receiving unit can be the same functional module, which is referred to as a transceiver unit and can realize the sending function and the receiving function. Alternatively, the sending unit and the receiving unit can be different functional modules, and the transceiver unit is a general term for these functional modules.

[0047] In an optional implementation, the transceiver unit is configured to send, to the terminal apparatus, first information used to indicate a first configuration, where the first configuration is used to indicate a first time domain resource, and the transceiver unit is configured to send, to the terminal apparatus, a first PDCCH scheduling first signaling only on the first time domain resource.

[0048] In a fifth aspect, a communication apparatus is provided. The communication apparatus can be the terminal apparatus in the first aspect. The communication apparatus has the functions of the terminal apparatus. The communication apparatus is, for example, a terminal device, or other device having terminal device functions, or a chip system (or chip) or other functional module that can realize the functions of the terminal device, for example, in a terminal device. The communication apparatus includes a processor configured to perform the functions of the terminal apparatus in the first aspect. Optionally, the communication apparatus further includes a memory. The memory is configured to store a computer program, and the processor is coupled to the memory. When the processor reads the computer program or instructions, the communication apparatus performs the method performed by the terminal apparatus in the above aspects.

[0049] In a sixth aspect, a communication apparatus is provided. The communication apparatus can be the network apparatus in the second aspect. The communication apparatus has the functions of the network apparatus. The communication apparatus is, for example, a network device, or another device having the functions of the network device, or a chip system (or chip) or another functional module capable of implementing the functions of the network device, for example, in the network device. The communication apparatus includes a processor configured to perform the functions of the network apparatus in the second aspect. Optionally, the communication apparatus further includes a memory. The memory is configured to store a computer program. The processor is coupled to the memory. When the processor reads the computer program or instructions, the communication apparatus performs the method in the above aspects performed by the network apparatus.

[0050] In a seventh aspect, a communication system is provided. The communication system includes a network apparatus. The network apparatus is configured to perform the method performed by the network apparatus in the second aspect. The network apparatus can be implemented by the communication apparatus in the fourth aspect or the sixth aspect.

[0051] Optionally, the communication system further includes a terminal apparatus. The terminal apparatus is configured to perform the method performed by the terminal apparatus in the first aspect. The terminal apparatus can be implemented by the communication apparatus in the third aspect or the fifth aspect.

[0052] In an eighth aspect, a computer readable storage medium is provided. The computer readable storage medium is configured to store a computer program or instructions. When the computer program or instructions are executed, the method performed by the terminal apparatus or the network apparatus in the above aspects is implemented.

[0053] In a ninth aspect, a computer program product is provided. The computer program product includes instructions. When the computer program or instructions are executed on a computer, the method in the above aspects is implemented.

[0054] In a tenth aspect, a chip system is provided. The chip system includes a processor and an interface. The processor is configured to call and execute instructions from the interface, so that the chip system implements the method in the above aspects. BRIEF DESCRIPTION OF DRAWINGS

[0055] FIG. 1 is a structural schematic diagram of a communication system provided by an embodiment of the present application;

[0056] FIG. 2a is a schematic diagram of a set of time-frequency resources corresponding to a search space provided by an embodiment of the present application;

[0057] FIG. 2b is a schematic diagram of a set of time-domain resources corresponding to a search space provided by an embodiment of the present application;

[0058] FIG. 2c is a schematic diagram of detecting PDCCH according to an embodiment of the present application;

[0059] FIG. 2d is a schematic diagram of detecting PDCCH according to another embodiment of the present application;

[0060] FIG. 3 is a schematic diagram of a communication method according to an embodiment of the present application;

[0061] FIG. 4a is a schematic diagram of a first time domain resource according to an embodiment of the present application;

[0062] FIG. 4b is a schematic diagram of detecting a first PDCCH for scheduling first signaling according to an embodiment of the present application;

[0063] FIG. 4c is a schematic diagram of a second time domain resource according to an embodiment of the present application;

[0064] FIG. 5 is a schematic diagram of a communication apparatus according to an embodiment of the present application;

[0065] FIG. 6 is a schematic diagram of another communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0067] The technical solutions provided by the embodiments of the present application can be applied to a communication system related to the 3rd generation partnership project (3GPP), for example, a long term evolution (LTE) communication system, a 5th generation (5G) mobile communication system (for example, a new radio (NR) communication system, or an NR communication system with multi-input multi-output (MIMO) technology, etc.), or can also be applied to other next-generation mobile communication systems, or can also be applied to other similar communication systems, or can also be applied to future evolution communication systems. Other similar communication systems can include wireless fidelity (WiFi), vehicle to everything (V2X), internet of things (IoT), narrow band internet of things (NB-IoT), or industrial internet, etc.

[0068] Referring to FIG. 1, it is a structural schematic diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1, the communication system 1000 can include a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 1000 can also include an Internet 300.

[0069] The radio access network 100 includes at least one access network device (such as the access network devices 110a and 110b in FIG. 1, collectively referred to as the access network devices 110) and at least one terminal device (such as the terminal devices 120a-120j in FIG. 1, collectively referred to as the terminal devices 120). The radio access network 100 can also include other devices, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1). The terminal devices 120 are connected to the access network devices 110 in a wireless manner. The access network devices 110 are connected to the core network 200 in a wireless or wired manner. The core network device 210 in the core network 200 and the access network device 110 in the radio access network 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the radio access network.

[0070] The radio access network 100 can be a 3GPP related communication system (such as a 5G mobile communication system), or other next-generation mobile communication systems. The radio access network 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a WiFi system. The radio access network 100 can also be a communication system that combines two or more of the above systems. The access network device 110, also known as a network device, a RAN node, a RAN entity, or an access node, is used to help the terminal device 120 to realize wireless access. The network device, as well as the components (such as chips, processing units, or processors, etc.) in the network device, can be collectively referred to as a network apparatus. For example, it can be the network device shown in FIG. 1, or it can be a chip (system) in the network device in FIG. 1.

[0071] In a possible scenario, the network device can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a WiFi system, etc. The network device can also be a macro base station (such as 110a in FIG. 1), a micro base station or an indoor station (such as 110b in FIG. 1), a relay node or a donor node, or a wireless controller in a CRAN scenario. Alternatively, the network device can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the network device in the V2X technology can be a road side unit (RSU).

[0072] In another possible scenario, a plurality of network devices can cooperate to assist the terminal device 120 to implement wireless access, and different network devices respectively implement part of functions of a base station. For example, a network device can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, for example, in a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH). The CU can complete functions of a radio resource control (RRC) protocol and a packet data convergence protocol (PDCP) of a base station, and can also complete a function of a service data adaptation protocol (SDAP); the DU can complete functions of a radio link control (RLC) layer and a medium access control (MAC) layer of a base station, and can also complete a function of part of a physical (PHY) layer or all of the PHY layer. For specific descriptions of the above-mentioned protocol layers, refer to relevant technical specifications of the 3GPP.

[0073] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, the CU-CP, the CU-UP, the DU, and the RU are taken as examples for description in this application. Any one of the CU (or the CU-CP, the CU-UP), the DU, and the RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0074] The terminal device 120 can also be referred to as a terminal, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal device, and components (such as a chip, a processing unit, or a processor, etc.) in the terminal device can be collectively referred to as a terminal apparatus. For example, it can be the terminal device shown in FIG. 1, or it can be a chip (system) in the terminal device in FIG. 1. The terminal device 120 can be widely applied to various scenarios, such as device-to-device (D2D) communication, V2X communication, machine-type communication (MTC), IOT communication, virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart power grid, smart home, smart office, smart wear, smart transportation, smart city, etc. The terminal device 120 can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc.

[0075] In the embodiments of the present application, the functions of the access network device 110 can also be performed by a module (such as a chip or a modem) in the access network device 110, or by an apparatus containing the functions of the access network device 110. The functions of the terminal device 120 can also be performed by a module (such as a chip or a modem) in the terminal device 120, or by an apparatus containing the functions of the terminal device 120. The functions of the core network device 210 can also be performed by a module (such as a chip or a modem) in the core network device 210, or by an apparatus containing the functions of the core network device 210. The embodiments of the present application do not limit the specific technology and specific device form adopted by the access network device 110, the terminal device 120, and the core network device 210.

[0076] As briefly introduced above, the communication system to which the embodiments of the present application are applicable is described below, and related technical solutions involved in the embodiments of the present application are introduced.

[0077] 1) Physical downlink control channel (PDCCH) candidate

[0078] In the NR system, the PDCCH can carry downlink control information (DCI). The DCI can be used for scheduling a physical downlink shared channel (PDSCH) and / or for scheduling a physical uplink shared channel (PUSCH). The PDSCH or the PUSCH can be used to carry data or signaling. That is, the PDCCH can be used to schedule data or signaling. In this application, detecting the PDCCH can also be understood as detecting the DCI.

[0079] The network device can configure a PDCCH candidate for the terminal device. The network device can send a PDCCH to the terminal device on the PDCCH candidate, or can not send a PDCCH on the PDCCH candidate. The terminal device can detect (detect) the PDCCH from the network device on the PDCCH candidate, and the result of the detection is that the PDCCH is detected, or the PDCCH is not detected. In the embodiments of the present application, "detect" can be replaced by "monitor". In the case of detecting the PDCCH, the terminal device can decode the PDCCH according to the format of the DCI carried on the PDCCH.

[0080] Generally, one PDCCH candidate can contain L control channel elements (CCEs). Wherein, L can be referred to as the aggregation level (AL) of the PDCCH, and the value of L can be 1, 2, 4, 8 or 16. One CCE can contain 6 resource element groups (REGs). The REG belongs to the concept of time-frequency resource blocks in the NR system, and one REG contains one symbol in the time domain and one resource block (RB) in the frequency domain, that is, 12 subcarriers. The symbol can also be referred to as an orthogonal frequency-division multiplexing (OFDM) symbol

[0081] 2) Search space (or search space set) or control resource set (CORESET).

[0082] How the network device configures the PDCCH candidate for the terminal device will be introduced below.

[0083] A search space can be a set of a group of PDCCH candidates. In the aforementioned group of PDCCH candidates, the aggregation level of each PDCCH candidate can be the same, or there can be at least two PDCCH candidates with different aggregation levels.

[0084] One search space can be associated with one CORESET. One CORESET can be defined on one cell. One CORESET contains a group of contiguous or non-contiguous RBs in the frequency domain and 1, 2, or 3 contiguous symbols in the time domain. Generally, one search space can be associated with and only with one CORESET, and one CORESET can be associated with multiple search spaces.

[0085] As shown in Table 1, search spaces are divided into two types: common search space (CSS) and UE-specific search space (USS).

[0086] Among them, the CSS is applicable to common scenarios. The CSS includes one or more of the following. The following is introduced.

[0087] Type0-PDCCH CSS, the terminal device can use the system information radio network temporary identifier (SI-RNTI) to detect PDCCH in the Type0-PDCCH CSS, which is used for the terminal device to detect the scheduling of system information block (SIB) 1.

[0088] Type0A-PDCCH CSS, the terminal device can use the SI-RNTI to detect PDCCH in the Type0A-PDCCH CSS, which is used for the terminal device to detect the scheduling of other SIBs.

[0089] Type1-PDCCH CSS, the terminal device can use the random access RNTI (RA-RNTI), message B RNTI (MsgB-RNTI), or temporary cell RNTI (TC-RNTI) to detect PDCCH in the Type1-PDCCH CSS, which is used for the terminal device to detect the scheduling of random access messages (such as (random access response (RAR)).

[0090] Type2-PDCCH CSS, in which the terminal device can detect PDCCH using a paging RNTI (P-RNTI) for scheduling of the terminal device to detect a paging message.

[0091] Type3-PDCCH CSS, in which the terminal device can detect PDCCH using an interruption RNTI (INT-RNTI), a slot format indication RNTI (SFI-RNTI), a transmit power control physical uplink shared channel RNTI (TPC-PUSCH-RNTI), a transmit power control physical uplink control channel RNTI (TPC-PUCCH-RNTI), a transmit power control sounding reference signal RNTI (TPC-SRS-RNTI), or an identification of cancellation in the uplink RNTI (CI-RNTI) for scheduling of the terminal device to detect group common DCI.

[0092] USS, in which the terminal device can detect PDCCH using a cell RNTI (C-RNTI), a modulation and coding scheme cell RNTI (MCS-C-RNTI), a semi persistent channel state information RNTI (SP-CSI-RNTI), or a configured scheduling RNTI (CS-RNTI) for scheduling of the terminal device to detect PDSCH or PUSCH.

[0093] Table 1

[0094] The network device can configure time domain parameters (e.g., a detection period, a period offset) for the search space in the configuration information of the search space, and determine a set of time-frequency resources corresponding to the search space according to the time domain parameters of the search space and time-frequency resource parameters of a CORESET associated with the search space.

[0095] For example, FIG. 2a is a schematic diagram of a set of time-frequency resources corresponding to a search space according to an embodiment of the present application. As shown in FIG. 2a, a CORESET is associated with search space 1, and the CORESET is also associated with search space 2. The time domain resources and the frequency domain resources included in the CORESET are shown in FIG. 2a. The network device can shift the CORESET to different positions in time according to the time domain resources and the frequency domain resources included in the CORESET and the time domain parameters of search space 1, so as to form a set of time-frequency resources corresponding to search space 1, as shown in the set of time-frequency resources without filling patterns in FIG. 2a. Similarly, the network device can shift the CORESET to different positions in time according to the time domain resources and the frequency domain resources included in the CORESET and the time domain parameters of search space 2, so as to form a set of time-frequency resources corresponding to search space 2, as shown in the set of time-frequency resources with filling patterns in FIG. 2a. It can be seen that the time domain parameters of search space 1 are different from the time domain parameters of search space 2.

[0096] The configuration information of the search space can include one or more of the following, which are described below.

[0097] A search space identifier (searchSpaceId) is used to indicate or identify the search space.

[0098] A control resource set identifier (controlResourceSetId) is used to indicate the CORESET associated with the search space.

[0099] A detection period and offset (monitoringSlotPeriodicityAndOffset) is used to indicate a detection period and an offset of detecting a PDCCH. The unit of indication can be a slot.

[0100] A duration (duration) is used to indicate a duration of detecting a PDCCH in each detection period. The unit of indicated duration can be a slot, that is, the duration is the number of detection slots of detecting a PDCCH in each detection period.

[0101] A first detection symbol in each detection slot (monitoringSymbolsWithinSlot) is used to indicate a first detection symbol of detecting a PDCCH in each detection slot. The indicated symbol can be one or more.

[0102] PDCCH candidate number (nrofCandidates), used to indicate the number of PDCCH candidates corresponding to each aggregation level.

[0103] Search space type (searchSpaceType), used to indicate whether the search space is CSS (for example, Type0-PDCCH CSS, Type0A-PDCCH CSS, etc.) or USS, and indicate the format of DCI carried on the PDCCH detected in the search space.

[0104] For example, FIG. 2b is a schematic diagram of a set of time domain resources corresponding to a search space provided by an embodiment of the present application. As shown in FIG. 2b, the detection period corresponding to the search space 1 is 10 slots, the period offset is 5 slots, the number of detection slots in each detection period is 2 slots, the first detection symbol in each detection slot is symbol 0 and symbol 7, and the CORESET associated with the search space 1 contains 2 symbols in the time domain. Therefore, after the network device configures the search space 1 for the terminal device, the terminal device detects the PDCCH in symbol 0, symbol 1, symbol 7 and symbol 8 in the 6th slot and the 7th slot in each detection period with 10 slots as a detection period, that is, the set of time domain resources corresponding to the search space 1 is symbol 0, symbol 1, symbol 7 and symbol 8 in the 6th slot and the 7th slot in every 10 slots, as shown in FIG. 2b, a set of time domain resources with a filling pattern.

[0105] At present, when the terminal device is in the connected state, the terminal device needs to detect the PDCCH according to the search space configured by the network device at all times, so as to prevent missing the data scheduling and signaling scheduling of the network device. However, long-time detection of the PDCCH by the terminal device will increase the power consumption of the terminal device.

[0106] For example, FIG. 2c is a schematic diagram of detecting PDCCH provided by an embodiment of the present application. As shown in FIG. 2c, in a discontinuous reception (DRX) cycle of the terminal device, the terminal device can be divided into two states, one state is a non-sleep state in which the terminal device detects the PDCCH, and the other state is a sleep state in which the terminal device does not detect the PDCCH.

[0107] The non-sleep state includes a PDCCH-only state and a non-PDCCH-only state. The PDCCH-only state means that the terminal device detects the PDCCH but does not detect the PDCCH, that is, the terminal device performs meaningless detection. The reason why the terminal device does not detect the PDCCH can be that the network device does not actually send the PDCCH to the terminal device, that is, the network device does not perform any scheduling on the terminal device. The non-PDCCH-only state means that the terminal device detects the PDCCH and detects the PDCCH. That is, the terminal device performs meaningful detection. The sleep state includes a deep sleep state and a light sleep state. The difference between the deep sleep state and the light sleep state is the duration, that is, the duration is shorter for the light sleep state, and the duration is longer for the deep sleep state.

[0108] The time at which the network device schedules data has a great relationship with the service of the terminal device, and therefore, the time at which the network device schedules data is predictable or regular based on the service of the terminal device. In order to reduce the power consumption of the terminal device, the terminal device can use artificial intelligence (AI) or other manners (for example, an application layer informs) to determine the arrival time of data. If the terminal device determines that no data arrives within a time range, the terminal device can not detect the PDCCH within the time range, so as to reduce the power consumption.

[0109] For example, FIG. 2d is another schematic diagram of detecting the PDCCH provided by an embodiment of the present application. As shown in FIG. 2d, the terminal device determines that data arrives within the time range 1, and no data arrives within other time ranges, so that the terminal device detects the PDCCH only within the time range 1. That is, the terminal device enters the non-PDCCH-only state within the time range 1, and enters the sleep state within other time ranges, so as to reduce the power consumption.

[0110] However, since the PDCCH schedules not only data but also signaling, and the signaling is triggered by the network device, the terminal device cannot determine the arrival time of the signaling, and therefore, when the terminal device detects the PDCCH only according to the determined arrival time of the data, the signaling scheduling of the network device can be missed.

[0111] In view of this, an embodiment of the present application provides a communication method for reducing the power consumption of a terminal.

[0112] In the embodiments of the present application, "when", "if" and "whether" all refer to the device making corresponding processing under certain objective circumstances, and are not limited in time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations. Unless otherwise specified, "if" and "whether" can be replaced, and "when" and "in the case of" can be replaced. "When" and "if" / "whether" can be replaced.

[0113] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example or illustration. Any embodiment or design presented as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or advantageous than other embodiments or designs. Rather, the use of "exemplary" or "for example" is intended to present concepts in a concrete manner.

[0114] In this document, "for indicating" can include "for directly indicating" and "for indirectly indicating". For example, when describing that information I is used for indicating information J, it can include that the information I directly indicates the information J or indirectly indicates the information J, and does not mean that the information J must be carried in the information I.

[0115] The information J indicated by the information I is referred to as to-be-indicated information, and in the specific implementation process, there are many ways to indicate the to-be-indicated information, for example but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be only indicated in part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of various information agreed in advance (for example, specified by a protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common part of each information can be identified and uniformly indicated, so as to reduce the indication overhead caused by separately indicating the same information.

[0116] In addition, the specific indication manner can also be various existing indication manners, for example but not limited to, the above-mentioned indication manners and various combinations thereof. As described above, for example, when multiple information of the same type needs to be indicated, the indication manners of different information can not be the same. In the specific implementation process, the required indication manner can be selected according to the specific needs, and the selected indication manner is not limited in the embodiments of the present application, so that the indication manner involved in the embodiments of the present application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information.

[0117] In the embodiments of the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface by other units or modules. "Sending" can also be understood as "output" of a chip interface, and "receiving" can also be understood as "input" of a chip interface.

[0118] The information can be processed as necessary between the source and the destination of the information transmission, such as encoding, modulation, etc., but the destination can understand the valid information from the source. Similar expressions in the embodiments of the present application can be similarly understood, and will not be repeated here.

[0119] In the embodiments of the present application, the number of nouns represents "singular noun or plural noun" unless otherwise specified, that is, "one or more". "At least one" means one or more, and "multiple" means two or more. "And / or" describes the association between the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " can represent an "or" relationship between the associated objects. For example, A / B means A or B. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b, or c means a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0120] The embodiments of the present application refer to "first", "second", etc. ordinal numbers are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. For example, the first configuration and the second configuration refer to two different configurations, and do not mean that the priority or importance of the two configurations is different. For a technical feature, the technical features in the technical feature are distinguished by "A", "B", "C" and "D". There is no order or size order between the technical features described by "A", "B", "C" and "D". For example, case A and case B in this paper are only used to distinguish different contents, and do not limit the order or size order between case A and case B, priority or importance, etc.

[0121] The scheme provided by the embodiments of the present application will be described in detail below with reference to the drawings. In the following description, the communication method provided by the embodiments of the present application is taken as an example applied to the communication system shown in FIG. 1. The communication system and application scenarios described in the embodiments of the present application are for more clearly illustrating the technical scheme of the embodiments of the present application, and do not constitute a limitation on the technical scheme provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of the communication system and the appearance of new application scenarios, the technical scheme provided by the embodiments of the present application is also applicable to similar technical problems.

[0122] In the following description, the communication method provided by the embodiments of the present application is taken as an example executed by the terminal device and the network device.

[0123] When the communication method is implemented by components in the terminal device and the network device, the receiving and transmitting steps therein can be understood as the communication between the components and other components, such as the communication between the baseband chip and the radio frequency circuit. The processing performed by a single execution subject in the embodiments of the present application can also be divided into processing performed by multiple execution subjects, which can be logically and / or physically separated. For example, the processing performed by the network device can be divided into processing performed by at least one of the CU and the DU.

[0124] Referring to FIG. 3, FIG. 3 is a flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 3, the flow of the communication method includes the following steps.

[0125] S301, the network device sends first information to the terminal device, and correspondingly, the terminal device receives the first information from the network device; wherein the first information is used to indicate a first configuration, and the first configuration is used to indicate a first time domain resource.

[0126] In the embodiments of the present application, the first information can be encapsulated or carried in an RRC message (such as an RRC reconfiguration message) or other messages, which are not limited in the embodiments of the present application. It can be understood that the terminal device can obtain the first information through blind detection.

[0127] The first time domain resource indicated by the first configuration can correspond to a continuous or discontinuous time domain resource position. The first time domain resource indicated by the first configuration can be a periodic or aperiodic time domain resource. The embodiments of the present application are not limited in this regard.

[0128] The first time domain resource indicated by the first configuration can be understood as the time domain resource of the first PDCCH scheduling the first signaling. That is, the terminal device detects the first PDCCH scheduling the first signaling at the time domain resource position corresponding to the first time domain resource. Correspondingly, the network device can send the first PDCCH scheduling the first signaling at the time domain resource position corresponding to the first time domain resource.

[0129] Optionally, the first time-domain resource indicated by the first configuration can be understood as a set of time-domain resources corresponding to the first search space. That is, the first configuration can be used to configure the first search space.

[0130] The first search space is a search space corresponding to a first PDCCH scheduling the first signaling, or the first search space is a search space of the first signaling. That is, the first search space is a set of PDCCH candidates, and the network device can send the first PDCCH scheduling the first signaling to the terminal device on the set of PDCCH candidates, and the terminal device can detect the first PDCCH scheduling the first signaling from the network device on the set of PDCCH candidates. That is, the first search space corresponds to a set of time-frequency resources, and the network device can send the first PDCCH scheduling the first signaling to the terminal device on the set of time-frequency resources corresponding to the first search space, and the terminal device can detect the PDCCH scheduling the first signaling from the network device on the set of time-frequency resources corresponding to the first search space. The first search space can be a USS.

[0131] The first signaling is used to carry control information, and can be a message or data carrying control information. For example, the first signaling can carry control information of an RRC layer, a MAC layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, a service data adaptation protocol (SDAP) layer, or a physical layer.

[0132] For example, the first signaling can include an RRC message. For example, the RRC message can be one or more of an RRC reconfiguration message, a downlink information transfer (DLInformationTransfer) message, a downlink information transfer (DLInformationTransferMRDC) message of multi-radio dual connectivity (MRDC), a counter check (CounterCheck) message, a downlink dedicated message segment (DLDedicatedMessageSegment) message, a logged measurement configuration (LoggedMeasurementConfiguration) message, and the like. It can be understood that the first signaling can also include a non-access stratum (NAS) message.

[0133] Exemplarily, the first signaling can comprise a MAC message, for example, a media access control control element (MAC CE).

[0134] Exemplarily, the first signaling can comprise data plane signaling. The data plane signaling can be understood as control information sent through a data bearer, for example, the data plane signaling can be one or more of an RLC status report, a PDCP status report, and the like.

[0135] It can be understood that the first signaling can comprise one or more of the above examples, and can also comprise other forms of messages or data carrying control information, which are not limited by the embodiments of the present application.

[0136] In the implementation process, the first configuration can comprise a first parameter and / or a second parameter. The following is introduced.

[0137] 1) The first parameter can be used to indicate one or more of a search space identifier, a CORESET identifier, a detection period, a period offset, a duration (i.e., a number of detection slots in each detection period), a first detection symbol in each detection slot, a number of PDCCH candidates, and a search space type.

[0138] It can be understood that the specific description of the search space identifier, the CORESET identifier, the detection period, the period offset, the duration, the first detection symbol in each detection slot, the number of PDCCH candidates, and the search space type involved in the embodiments of the present application can refer to the specific description of the related technical features in the foregoing, which will not be repeated here.

[0139] 2) The second parameter can be used to indicate a first time.

[0140] The first time can be one or more of a start time, an end time, or a duration length of the terminal device detecting a first PDCCH scheduling the first signaling. Alternatively, it can also be said that the first time can be one or more of a start time, an end time, or a duration length of the first search space.

[0141] For example, the second parameter can indicate a time range by indicating a start time and an end time, or the second parameter can indicate a time range by indicating a start time and a time duration, or the second parameter can indicate a time range by indicating an end time and a time duration. The terminal device detects the first PDCCH scheduling the first signaling within the time range. It can be understood that the terminal device does not always detect the first PDCCH scheduling the first signaling according to the first parameter, but only detects the first PDCCH scheduling the first signaling according to the first parameter within the time range. For example, the terminal device detects the first PDCCH scheduling the first signaling according to the detection period, the periodic offset, the number of detection slots in each detection period, and the like indicated by the first parameter only within the time range, and does not detect the PDCCH scheduling the first signaling outside the time range.

[0142] In a possible implementation, the first time can be associated with the second time. The second time can be one or more of a start time, an end time, or a time duration of the terminal device transmitting the first data. The second time can be configured by the network device, or the second time can be determined by the terminal device, for example, the terminal device determines the start time in the second time according to the time of starting to transmit the first data, or the terminal device determines the end time in the second time according to the time of stopping to transmit the first data, which is not limited in the embodiments of the present application. It can be understood that the first data can not refer to a specific data, but refer to data in general. The terminal device transmitting the first data can include the terminal device sending the first data or the terminal device receiving the first data.

[0143] For example, the start time of the terminal device detecting the first PDCCH scheduling the first signaling is related to the start time of the terminal device transmitting the first data. For example, the start time of the terminal device detecting the first PDCCH scheduling the first signaling is the start time of the terminal device transmitting the first data; or the start time of the terminal device detecting the first PDCCH scheduling the first signaling is earlier than the start time of the terminal device transmitting the first data, such as the former is earlier than the latter by a certain time (for example, X milliseconds, X slots, or X symbols); or the start time of the terminal device detecting the first PDCCH scheduling the first signaling is later than the start time of the terminal device transmitting the first data, such as the former is later than the latter by a certain time (for example, Y milliseconds, Y slots, or Y symbols). Wherein, X and Y are integers greater than or equal to 1, the values of X and Y can be pre-configured, or can be defined by a standard, or can be negotiated between the network device and the terminal device, for example, configured by the network device to the terminal device, which is not limited in the embodiments of the present application.

[0144] For example, the terminal device detects that the end time of the first PDCCH scheduling the first signaling is related to the end time of the terminal device transmitting the first data. For example, the terminal device detects that the end time of the first PDCCH scheduling the first signaling is the end time of the terminal device transmitting the first data; or the terminal device detects that the end time of the first PDCCH scheduling the first signaling is earlier than the end time of the terminal device transmitting the first data, such as the former is earlier than the latter by a certain time (e.g., X milliseconds, X time slots or X symbols); or the terminal device detects that the end time of the first PDCCH scheduling the first signaling is later than the end time of the terminal device transmitting the first data, such as the former is later than the latter by a certain time (e.g., Y milliseconds, Y time slots or Y symbols).

[0145] For example, the terminal device detects that the duration length of the first PDCCH scheduling the first signaling is related to the duration length of the terminal device transmitting the first data. For example, the terminal device detects that the duration length of the first PDCCH scheduling the first signaling is the duration length of the terminal device transmitting the first data, or the terminal device detects that the duration length of the first PDCCH scheduling the first signaling is less than the duration length of the terminal device transmitting the first data, such as the former is less than the latter by a certain time (e.g., X milliseconds, X time slots or X symbols), or the terminal device detects that the duration length of the first PDCCH scheduling the first signaling is greater than the duration length of the terminal device transmitting the first data, such as the former is greater than the latter by a certain time (e.g., Y milliseconds, Y time slots or Y symbols).

[0146] The first signaling can be associated with the first data. It can be understood that the premise of the network device sending the first signaling to the terminal device is that the terminal device sends the first data to the network device. For example, the first signaling is an RLC status report, and the terminal device receives the RLC status report from the network device only after sending the first data to the network device, so as to determine the reception of the first data according to the RLC status report. For another example, the first signaling is a PDCP status report, and the terminal device receives the PDCP status report from the network device only after sending the first data to the network device, so as to determine the reception of the first data according to the PDCP status report.

[0147] That is, when the first signaling is associated with the first data, in order to reduce the power consumption of the terminal device and not miss the first PDCCH scheduling the first signaling, the terminal device can detect the first PDCCH scheduling the first signaling only in or around the time range of transmitting the first data. For example, the first signaling is the RLC status report, if the terminal device detects the first PDCCH scheduling the RLC status report in a relatively dense time, although it can not miss the first PDCCH scheduling the RLC status report, so as to know the reception of the first data by the network device in time, but the dense detection time will increase the power consumption of the terminal device. If the terminal device detects the first PDCCH scheduling the RLC status report in a relatively sparse time, although it can reduce the power consumption of the terminal device, but the sparse detection time will lead to missing the first PDCCH scheduling the RLC status report, and increase the delay of retransmitting the first data. Therefore, detecting the first PDCCH scheduling the RLC status report according to the time range of transmitting the first data, that is, not missing the RLC status report, not increasing the transmission delay of the first data, and being able to reduce the power consumption of the terminal device.

[0148] It can be understood that the manner in which the terminal device determines the first time is not limited to being determined by the second parameter. For example, the terminal device can determine the first time according to a preset rule, for example, the terminal device can determine the first time according to the second time. For another example, the terminal device can determine the first time by an event, for example, the event can include at least one of the following: when the terminal device receives the signaling A or the data A, the terminal device starts to detect the first PDCCH scheduling the first signaling; or when the terminal device receives the signaling B or the data B, the terminal device stops detecting the first PDCCH scheduling the first signaling; or the terminal device starts to detect the first PDCCH of the first signaling when it is determined that the transmission of the first data starts; or the terminal device stops detecting the first PDCCH of the first signaling when it is determined that the transmission of the first data ends.

[0149] It can be understood that the second parameter included in the first configuration is optional, which means that the terminal device can detect the first PDCCH scheduling the first signaling according to the first parameter included in the first configuration after receiving the first information, instead of detecting the first PDCCH scheduling the first signaling according to the first parameter included in the first configuration only in a certain time range.

[0150] It can be understood that the first parameter and / or the second parameter included in the first configuration is a time domain parameter of the first search space. The first time domain resource indicated by the first configuration can be obtained according to the time domain parameter of the first search space and a time domain resource parameter of a first CORESET associated with the first search space. The first CORESET can contain a set of continuous or discontinuous RBs in the frequency domain and 1, 2 or 3 continuous symbols in the time domain. That is, the frequency domain resource parameter of the first CORESET is a set of continuous or discontinuous RBs contained in the frequency domain, and the time domain resource parameter of the first CORESET is 1, 2 or 3 continuous symbols contained in the time domain.

[0151] For example, FIG. 4a is a schematic diagram of a first time domain resource provided by an embodiment of the present application. The detection period corresponding to the first search space is 10 slots, the period offset is 5 slots, the number of detection slots in each detection period is 2 slots, the first detection symbol in each detection slot is symbol 0 and symbol 7, and the first CORESET associated with the first search space contains 2 symbols in the time domain. Since the starting time of the terminal device detecting the first PDCCH is time 1 and the ending time is time 2, time 1 and time 2 are separated by 20 slots, that is, time 1 is the first slot and time 2 is the 20th slot. Therefore, after the network device configures the first search space for the terminal device, the terminal device detects the first PDCCH scheduling the first signaling on symbol 0, symbol 1, symbol 7 and symbol 8 in the 6th slot, the 7th slot, the 16th slot and the 17th slot, as shown in FIG. 4a. A set of time domain resources with filled patterns is a set of time domain resources corresponding to the first search space, that is, the first time domain resource indicated by the above first configuration.

[0152] S302, the network device only sends the first PDCCH scheduling the first signaling to the terminal device on the first time domain resource, and correspondingly, the terminal device only detects the first PDCCH scheduling the first signaling from the network device on the first time domain resource.

[0153] In the embodiment of the present application, the network device only sends the first PDCCH scheduling the first signaling to the terminal device on the first time domain resource, which can be understood as that the network device does not send the first PDCCH scheduling the first signaling to the terminal device on the time domain resource other than the first time domain resource. The terminal device only detects the first PDCCH scheduling the first signaling from the network device on the first time domain resource, which can be understood as that the terminal device does not detect the first PDCCH scheduling the first signaling from the network device on the time domain resource other than the first time domain resource.

[0154] Optionally, the terminal device can detect the first PDCCH scheduling the first signaling on the first time domain resource using the C-RNTI, or the terminal device can detect the first PDCCH scheduling the first signaling on the first time domain resource using a first identifier, the first identifier being a user identifier used for identifying the first signaling, for example, the first identifier being a signaling RNTI.

[0155] It can be understood that, since the network device only sends the first PDCCH scheduling the first signaling to the terminal device on the first time domain resource, and does not send the first PDCCH scheduling the first signaling to the terminal device on time domain resources other than the first time domain resource, the terminal device only detects the first PDCCH scheduling the first signaling from the network device on the first time domain resource, and does not detect the first PDCCH scheduling the first signaling from the network device on time domain resources other than the first time domain resource, so that not only the first PDCCH scheduling the first signaling from the network device is not missed, but also the power consumption of the terminal device is reduced.

[0156] For example, FIG. 4b is a schematic diagram of detecting the first PDCCH scheduling the first signaling provided by an embodiment of the present application. The first signaling includes an RLC status report and an RRC reconfiguration message. In the first DRX cycle of the terminal device, the network device can only send the first PDCCH scheduling the RLC status report to the terminal device in time range 1, and does not send the first PDCCH scheduling the RLC status report to the terminal device outside the time range 1; the terminal device can only detect the first PDCCH scheduling the RLC status report in the time range 1, and does not detect the first PDCCH scheduling the RLC status report outside the time range 1, that is, the terminal device is in a non-sleep state in the time range 1, and is in a sleep state outside the time range 1. In the second DRX cycle of the terminal device, the network device can only send the first PDCCH scheduling the RRC reconfiguration message to the terminal device in time range 2, and does not send the first PDCCH scheduling the RRC reconfiguration message to the terminal device outside the time range 2; the terminal device can only detect the first PDCCH scheduling the RRC reconfiguration message in the time range 2, and does not detect the first PDCCH scheduling the RRC reconfiguration message outside the time range 2, that is, the terminal device is in a non-sleep state in the time range 2, and is in a sleep state outside the time range 2. Wherein, the non-sleep state of the terminal device in the time range 1 and the time range 2 is a non-PDCCH-only state, that is, the terminal device detects the first PDCCH in the time range 1 and the time range 2, and detects the first PDCCH, and the terminal device does not perform meaningless detection, thereby reducing the power consumption of the terminal device. Moreover, since the network device only sends the first PDCCH in the time range 1 and the time range 2, the terminal device does not miss the first PDCCH.

[0157] In a possible implementation, the terminal device can detect the first PDCCH scheduling the first signaling from the network device on all resources in the first time domain resource, so as to avoid missing the first PDCCH scheduling the first signaling by the terminal device, and ensure communication reliability.

[0158] In a possible implementation, the network device can further send, to the terminal device, a second PDCCH scheduling the first data on the first time domain resource, and correspondingly, the terminal device can further detect the second PDCCH scheduling the first data from the network device on the first time domain resource. Alternatively, the network device can not send, to the terminal device, the second PDCCH scheduling the first data on the first time domain resource, and correspondingly, the terminal device can not detect the second PDCCH scheduling the first data from the network device on the first time domain resource. That is, it is not limited whether the network device sends, to the terminal device, the second PDCCH scheduling the first data on the first time domain resource.

[0159] It can be understood that the second search space is a search space corresponding to the second PDCCH scheduling the first data. That is, the second search space is a set of PDCCH candidates, the network device can send, to the terminal device, the second PDCCH scheduling the first data on the set of PDCCH candidates, and the terminal device can detect the second PDCCH scheduling the first data from the network device on the set of PDCCH candidates. That is, the second search space corresponds to a set of time-frequency resources, the network device can send, to the terminal device, the second PDCCH scheduling the first data on the set of time-frequency resources corresponding to the second search space, and the terminal device can detect the second PDCCH scheduling the first data from the network device on the set of time-frequency resources corresponding to the second search space.

[0160] The set of time domain resources corresponding to the second search space can include the set of time domain resources corresponding to the first search space, that is, the set of time domain resources corresponding to the second search space includes the first time domain resource; or the set of time domain resources corresponding to the second search space can not include the set of time domain resources corresponding to the first search space, that is, the set of time domain resources corresponding to the second search space does not include the first time domain resource. The embodiments of the present application do not limit this.

[0161] When the set of time domain resources corresponding to the second search space includes the first time domain resource, the network device can further transmit, to the terminal device, the second PDCCH scheduling the first data on the first time domain resource, and correspondingly, the terminal device can further detect, from the network device, the second PDCCH scheduling the first data on the first time domain resource. Or, when the set of time domain resources corresponding to the second search space does not include the first time domain resource, the network device can not transmit, to the terminal device, the second PDCCH scheduling the first data on the first time domain resource, and correspondingly, the terminal device can not detect, from the network device, the second PDCCH scheduling the first data on the first time domain resource.

[0162] The first information can indicate one or more of a second configuration, a third configuration, or a fourth configuration in addition to indicating the first configuration, which will be introduced in the following cases.

[0163] In case A, the first information can also be used to indicate the second configuration. The second configuration can be used to indicate the second time domain resource.

[0164] The network device can transmit, to the terminal device, the second PDCCH scheduling the first data on the second time domain resource, and correspondingly, the terminal device can detect, from the network device, the second PDCCH scheduling the first data on the second time domain resource.

[0165] It can be understood that the specific description of the parameters included in the second configuration can refer to the specific description of the parameters included in the first configuration, which will not be repeated here. The parameters included in the second configuration can be understood as the time domain parameters of the second search space. The second time domain resource indicated by the second configuration can be understood as part or all of the time domain resources in the set of time domain resources corresponding to the second search space, that is, the set of time domain resources corresponding to the second search space can include but not limited to the second time domain resource, for example, the set of time domain resources corresponding to the second search space can include the first time domain resource and the second time domain resource.

[0166] In one possible implementation, the terminal device can detect, from the network device, the second PDCCH scheduling the first data on part of the second time domain resource.

[0167] It can be understood that, in order to reduce the power consumption of the terminal device, the terminal device can determine the arrival time of the first data by using AI or other manners (such as application layer notification and the like). If the terminal device determines that the first data arrives within a time range, the terminal device can detect the second PDCCH for scheduling the first data from the network device on the second time domain resource within the time range. If the terminal device determines that the first data does not arrive within a time range, the terminal device can not detect the second PDCCH for scheduling the first data from the network device on the second time domain resource within the time range. That is, the terminal device determines that the first data is likely to arrive on part of the second time domain resource, and the terminal device only detects the second PDCCH for scheduling the first data on the part of the second time domain resource where the first data is likely to arrive, so as to save the power consumption of the terminal device while ensuring that no data is missed. Further, the above-mentioned first time and second time are associated, which can be understood as that the first data is likely to arrive on the first time domain resource, and the first data is associated with the first signaling. Then, the terminal device only detects the first PDCCH for scheduling the first signaling on the first time domain resource, so as to save the power consumption of the terminal device while ensuring that no signaling is missed.

[0168] For example, FIG. 4c is a schematic diagram of a second time domain resource provided by an embodiment of the present application. The detection period corresponding to the second search space is 10 slots, the period offset is 5 slots, the number of detection slots in each detection period is 2 slots, the first detection symbol in each detection slot is symbol 0 and symbol 7, and the second CORESET associated with the second search space contains 2 symbols in the time domain. Therefore, after the network device configures the second search space for the terminal device, the network device detects the second PDCCH for scheduling the first data on symbol 0, symbol 1, symbol 7 and symbol 8 in the 6th slot and the 7th slot in each detection period with 10 slots as a detection period. The set of time domain resources with a filling pattern in FIG. 4c is a set of time domain resources corresponding to the second search space, that is, the second time domain resource indicated by the above-mentioned second configuration.

[0169] If the terminal device determines that the first data arrives within the time range 1 and does not arrive within other time ranges. Since the 6th slot and the 7th slot in the first detection period are within the time range 1, and the 6th slot and the 7th slot in the second detection period are not within the time range 1. Therefore, the terminal device can only detect the second PDCCH for scheduling the first data on symbol 0, symbol 1, symbol 7 and symbol 8 in the 6th slot and the 7th slot in the first detection period, and not detect the second PDCCH for scheduling the first data on symbol 0, symbol 1, symbol 7 and symbol 8 in the 6th slot and the 7th slot in the second detection period, so as to reduce the power consumption of the terminal device.

[0170] Case B, the first information can also be used to indicate a third configuration. Wherein, the third configuration can be used to indicate a third time domain resource.

[0171] The network device can only send the third PDCCH scheduling the second signaling to the terminal device on the third time domain resource, and correspondingly, the terminal device only detects the third PDCCH scheduling the second signaling from the network device on the third time domain resource. Wherein, the second signaling can be different from the first signaling.

[0172] The specific description of the second signaling can refer to the specific description of the first signaling described above, which will not be repeated here.

[0173] It can be understood that the third search space is the search space corresponding to the third PDCCH scheduling the second signaling. That is, the third search space is a set of PDCCH candidates, and the network device can send the third PDCCH scheduling the second signaling to the terminal device on the set of PDCCH candidates, and the terminal device can detect the third PDCCH of the second signaling from the network device on the set of PDCCH candidates. That is, the third search space corresponds to a set of time-frequency resources, and the network device can send the third PDCCH of the second signaling to the terminal device on the set of time-frequency resources corresponding to the third search space, and the terminal device can detect the third PDCCH of the second signaling from the network device on the set of time-frequency resources corresponding to the third search space.

[0174] The specific description of the parameters included in the third configuration can refer to the specific description of the parameters included in the first configuration described above, which will not be repeated here. The parameters included in the third configuration can be understood as the time domain parameters of the third search space. The third time domain resource indicated by the third configuration can be understood as the set of time domain resources corresponding to the third search space.

[0175] The third search space can be different from the first search space, i.e., the third time domain resource can be different from the first time domain resource. That is, different signaling can configure different search spaces. For example, the first signaling is an RRC message, and the second signaling is a MAC CE. The network device can configure search space 1 for the RRC message and configure search space 2 for the MAC CE. Since the transmission frequency of the RRC message is not very frequent, the set of time domain resources corresponding to the search space 1 can be relatively sparse, and the transmission frequency of the MAC CE is relatively frequent, and the set of time domain resources corresponding to the search space 1 can be relatively dense. For another example, the first signaling is an RRC reconfiguration message, and the second signaling is a message other than the RRC reconfiguration message. The network device can configure search space 1 for the RRC reconfiguration message and configure search space 2 for the signaling other than the RRC reconfiguration message (for example, an RLC status report). The network device can determine the search space of different signaling according to the characteristics (for example, the frequency, the relationship with data, etc.) of the signaling or other factors, so as to flexibly configure the search space for the terminal device.

[0176] Alternatively, the third search space can be the same as the first search space, i.e., the third time domain resource can be the same as the first time domain resource. That is, different signaling configures the same search space, for example, the network device only configures one search space for the terminal device, thereby reducing information overhead.

[0177] In case C, the first information can also be used to indicate a fourth configuration. The fourth configuration is used to indicate the first frequency domain resource, and the fourth configuration can be associated with the first configuration.

[0178] The first frequency domain resource indicated by the fourth configuration can correspond to a continuous or discontinuous frequency domain resource position. The first frequency domain resource indicated by the fourth configuration can be a periodic or aperiodic frequency domain resource. The embodiments of the present application do not limit this.

[0179] The first frequency domain resource indicated by the fourth configuration can be understood as a set of frequency domain resources corresponding to the first search space. That is, the fourth configuration can be used to configure the first search space.

[0180] In the implementation process, the fourth configuration can include a third parameter, and the third parameter can be used to indicate a first CORESET associated with the first search space. It can be understood that the third parameter included in the fourth configuration is a frequency domain parameter of the first search space. The first frequency domain resource indicated by the fourth configuration can be obtained according to the frequency domain parameter of the first search space.

[0181] The network device can only send the first PDCCH scheduling the first signaling to the terminal device on the first frequency domain resource, and correspondingly, the terminal device only detects the first PDCCH scheduling the first signaling from the network device on the first frequency domain resource.

[0182] The network device can send the first PDCCH scheduling the first signaling to the terminal device only on the first frequency domain resource. It can be understood that the network device does not send the first PDCCH scheduling the first signaling to the terminal device on the time domain resource other than the first frequency domain resource. The terminal device detects the first PDCCH scheduling the first signaling from the network device only on the first frequency domain resource. It can be understood that the terminal device does not detect the first PDCCH scheduling the first signaling from the network device on the frequency domain resource other than the first frequency domain resource.

[0183] Optionally, the terminal device can detect the first PDCCH scheduling the first signaling on the first frequency domain resource using the C-RNTI, or the terminal device can detect the first PDCCH scheduling the first signaling on the first frequency domain resource using the first identifier. The first identifier is a user identifier used to identify the first signaling, for example, the first identifier is a signaling RNTI.

[0184] It can be understood that, since the network device sends the first PDCCH scheduling the first signaling to the terminal device only on the first frequency domain resource, and does not send the first PDCCH scheduling the first signaling to the terminal device on the time domain resource other than the first frequency domain resource, the terminal device detects the first PDCCH scheduling the first signaling from the network device only on the first frequency domain resource, and does not detect the first PDCCH scheduling the first signaling from the network device on the time domain resource other than the first frequency domain resource. Not only does this not miss the first PDCCH scheduling the first signaling from the network device, but also reduces the power consumption of the terminal device.

[0185] It can be understood that the first information used to indicate the first configuration, the second configuration, the third configuration and the fourth configuration can be encapsulated or carried in the same message, or can be encapsulated or carried in different messages respectively, and the embodiments of the present application do not limit this.

[0186] The method provided in the embodiments of the present application is introduced by taking the terminal device and the network device as an example. In the present application, each embodiment can be independently implemented or implemented based on certain internal relations; different implementation manners in each embodiment can be combined or independently implemented. In order to implement the functions in the method provided in the embodiments of the present application, the steps performed by the terminal device can be implemented by different functional entities constituting the terminal device. The steps performed by the network device can be implemented by different functional entities constituting the network device. For example, the network device can be a CU-DU architecture, the CU can generate a synchronization signal, and the DU can send the synchronization signal. In order to implement the functions in the method provided in the embodiments of the present application, the terminal device and the network device can include hardware structures and / or software modules, and the above functions are implemented in the form of hardware structures, software modules, or hardware structures plus software modules. Whether a certain function in the above functions is implemented in the form of hardware structure, software module, or hardware structure plus software module depends on the specific application of the technical solution and the design constraint conditions.

[0187] The method provided in the embodiments of the present application is introduced above in combination with the drawings, and the device provided in the embodiments of the present application is introduced below in combination with the drawings.

[0188] Based on the same technical concept, the present application provides a communication device, which includes a module / unit / means for performing the method performed by the device in the above method embodiments. The module / unit / means can be implemented by software or by hardware, and can also be implemented by corresponding software executed by hardware.

[0189] For example, referring to FIG. 5, a schematic diagram of a communication device is shown, which includes a transceiver module 501 and a processing module 502. The device can be the terminal device or the network device described above.

[0190] When the device 500 is a terminal device, the functions of the modules of the device 500 are as follows:

[0191] The transceiver module 501 is configured to receive first information from a network device, wherein the first information is used to indicate a first configuration, and the first configuration is used to indicate a first time domain resource.

[0192] The processing module 502 is configured to detect a first PDCCH for scheduling first signaling from the network device only on the first time domain resource.

[0193] In a possible implementation, the processing module 502 is further configured to detect the first PDCCH from the network device on all resources in the first time domain resource.

[0194] In a possible implementation, the processing module 502 is further configured to detect, on the first time domain resource, a second PDCCH from the network device, the second PDCCH being used for scheduling first data.

[0195] In a possible implementation, the first information is further used to indicate a second configuration, the second configuration being used to indicate a second time domain resource; and the processing module 502 is further configured to detect, on the second time domain resource, a second PDCCH from the network device, the second PDCCH being used for scheduling first data.

[0196] In a possible implementation, the processing module 502 is further configured to detect, on part of the second time domain resource, the second PDCCH from the network device.

[0197] In a possible implementation, the processing module 502 is further configured to determine a first time, the first time being one or more of a start time, an end time, or a duration length of detecting the first PDCCH by the terminal device.

[0198] In a possible implementation, the first configuration comprises a first parameter and / or a second parameter, the first parameter being used to indicate one or more of a detection period, a period offset, a number of detection slots in each detection period, or a first detection symbol in each detection slot, and the second parameter being used to indicate the first time, the first time being one or more of a start time, an end time, or a duration length of detecting the first PDCCH by the terminal device.

[0199] In a possible implementation, the first time is associated with a second time, the second time being one or more of a start time, an end time, or a duration length of transmitting first data by the terminal device.

[0200] In a possible implementation, the first signaling is associated with the first data.

[0201] In a possible implementation, the first information is further used to indicate a third configuration, the third configuration being used to indicate a third time domain resource; and the processing module 502 is further configured to detect, on the third time domain resource only, a third PDCCH from the network device, the third PDCCH being used for scheduling second signaling, the second signaling being different from the first signaling.

[0202] In a possible implementation, the first information is further used to indicate a fourth configuration, the fourth configuration being used to indicate a first frequency domain resource, the fourth configuration being associated with the first configuration; and the processing module 502 is further configured to detect, on the first frequency domain resource only, the first PDCCH from the network device.

[0203] In a possible implementation, the first signaling comprises one or more of the following: an RRC message; a MAC CE; data plane signaling.

[0204] Alternatively, when the apparatus 500 is a network apparatus, the functions of the modules of the apparatus 500 are as follows:

[0205] The transceiver 501 is configured to send, to a terminal apparatus, first information, the first information being used to indicate a first configuration, the first configuration being used to indicate a first time domain resource.

[0206] The transceiver 501 is further configured to send, to the terminal apparatus, a first PDCCH scheduling first signaling only on the first time domain resource.

[0207] In a possible implementation, the transceiver 501 is further configured to send, to the terminal apparatus, a second PDCCH scheduling first data on the first time domain resource.

[0208] In a possible implementation, the first information is further used to indicate a second configuration, the second configuration being used to indicate a second time domain resource; and the transceiver 501 is further configured to send, to the terminal apparatus, a second PDCCH scheduling first data on the second time domain resource.

[0209] In a possible implementation, the first configuration comprises a first parameter and / or a second parameter, the first parameter being used to indicate one or more of a detection period, a period offset, a number of detection slots in each detection period, and a first detection symbol in each detection slot, and the second parameter being used to indicate a first time, the first time being one or more of a start time, an end time, or a duration length of the terminal apparatus detecting the first PDCCH.

[0210] In a possible implementation, the first time is associated with a second time, the second time being one or more of a start time, an end time, or a duration length of the terminal apparatus transmitting first data.

[0211] In a possible implementation, the first signaling is associated with the first data.

[0212] In a possible implementation, the first information is further used to indicate a third configuration, the third configuration being used to indicate a third time domain resource; and the transceiver 501 is further configured to send, to the terminal apparatus, a third PDCCH scheduling second signaling only on the third time domain resource, the second signaling being different from the first signaling.

[0213] In a possible implementation, the first information is further used to indicate a fourth configuration, the fourth configuration being used to indicate a first frequency domain resource, and the fourth configuration being associated with the first configuration; and the transceiver 501 is further configured to send the first PDCCH to the terminal device only on the first frequency domain resource.

[0214] In a possible implementation, the first signaling includes one or more of the following: an RRC message; a MAC CE; and data plane signaling.

[0215] In practice, the apparatus 500 can have various product forms. Hereinafter, several possible product forms will be introduced.

[0216] Referring to FIG. 6, another schematic diagram of a communication apparatus is shown, which includes a processor 601 configured to implement the method performed by the network device or the terminal device in the above method embodiments through a logic circuit or by executing instructions.

[0217] Optionally, the communication apparatus 600 can further include an interface circuit 602 configured to receive a signal from another communication apparatus outside the communication apparatus and transmit the signal to the processor 601, or transmit a signal from the processor 601 to another communication apparatus outside the communication apparatus. The processor 601 and the interface circuit 602 are coupled to each other. It can be understood that the interface circuit 602 can be a transceiver or an input / output interface.

[0218] Optionally, the communication apparatus 600 can further include a memory 603 configured to store instructions executed by the processor 601, or store input data required by the processor 601 to execute instructions, or store data generated after the processor 601 executes instructions.

[0219] It should be understood that the processor mentioned in the embodiments of the present application can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor which reads software codes stored in a memory to implement the functions.

[0220] The processor can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like. The general-purpose processor can be a microprocessor, or the processor can be any conventional processor, etc.

[0221] It should be understood that the memory mentioned in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM) and direct rambus RAM (DR RAM).

[0222] It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, the memory (storage module) can be integrated in the processor.

[0223] It should be noted that the memory described herein is intended to include, but not limited to, these and any other suitable types of memory.

[0224] Based on the same technical concept, the embodiments of the present application further provide a computer readable storage medium, which stores a computer program or instructions, and when the computer program or instructions are executed by a processor, the method performed by the terminal device and the network device in the method embodiments is realized.

[0225] Based on the same technical concept, the embodiments of the present application further provide a computer program product, which contains a computer program or instructions, and when the computer program or instructions are executed by a processor, the method performed by the terminal device and the network device in the method embodiments is realized.

[0226] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) containing computer-usable program code.

[0227] The present application is described with reference to flowcharts and / or block diagrams of the method, device (system), and computer program product according to the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing apparatus produce the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0228] These computer program instructions can also be stored in a computer-readable memory that can direct the computer or other programmable data processing apparatus to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including instruction devices that implement the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0229] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable data processing apparatus to produce a computer-implemented process, so that the instructions executed on the computer or other programmable data processing apparatus provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

Claims

1. A communication method characterized by comprising: Comprising: receiving first information from a network device, the first information being used for indicating a first configuration, the first configuration being used for indicating a first time domain resource; detecting a first physical downlink control channel (PDCCH) from the network device on the first time domain resource only, the first PDCCH being used for scheduling first signaling.

2. The method of claim 1, wherein, The method further comprises: detecting a second PDCCH from the network device on the first time domain resource, the second PDCCH being used for scheduling first data.

3. The method according to claim 1 or 2, characterized in that, The first information is further used for indicating a second configuration, the second configuration being used for indicating a second time domain resource; the method further comprises: detecting a second PDCCH from the network device on the second time domain resource, the second PDCCH being used for scheduling first data.

4. The method of claim 3, wherein, The method further comprises: detecting the second PDCCH from the network device on a part of the second time domain resource.

5. The method according to any of claims 1 to 4, characterized in that, The method further comprises: determining a first time, the first time being one or more of a starting time, an ending time or a duration length for the terminal device to detect the first PDCCH.

6. The method according to any one of claims 1 to 5, characterized in that, The first configuration comprises a first parameter and / or a second parameter, the first parameter being used for indicating one or more of a detection period, a period offset, a number of detection slots in each detection period, a first detection symbol in each detection slot, the second parameter being used for indicating the first time, the first time being one or more of a starting time, an ending time or a duration length for the terminal device to detect the first PDCCH.

7. The method according to claim 5 or 6, characterized in that, The first time is associated with a second time, the second time being one or more of a starting time, an ending time or a duration length for the terminal device to transmit the first data.

8. The method of claim 7, wherein, The first signaling is associated with the first data.

9. The method according to any of claims 1 to 8, characterized in that, The first information is further used for indicating a third configuration, the third configuration being used for indicating a third time domain resource; the method further comprises: detecting a third PDCCH from the network device on the third time domain resource only, the third PDCCH being used for scheduling second signaling, the second signaling being different from the first signaling.

10. The method according to any one of claims 1 to 9, characterized in that, The first information is further used for indicating a fourth configuration, the fourth configuration being used for indicating a first frequency domain resource, the fourth configuration being associated with the first configuration; the method further comprises: detecting the first PDCCH from the network device on the first frequency domain resource only.

11. The method according to any one of claims 1 to 10, characterized in that, The first signaling comprises one or more of: a radio resource control (RRC) message; a medium access control (MAC) control element (CE); data plane signaling.

12. A communication method characterized by comprising: Comprising: sending first information to a terminal device, the first information being used for indicating a first configuration, the first configuration being used for indicating a first time domain resource; sending a first PDCCH to the terminal device on the first time domain resource only, the first PDCCH being used for scheduling first signaling.

13. The method of claim 12, wherein, The method further comprises: sending a second PDCCH to the terminal device on the first time domain resource, the second PDCCH being used for scheduling first data.

14. The method according to claim 12 or 13, characterized in that, The first information is further used for indicating a second configuration, the second configuration being used for indicating a second time domain resource; the method further comprises: sending a second PDCCH to the terminal device on the second time domain resource, the second PDCCH being used for scheduling first data.

15. The method according to any of claims 12-14, characterized by, The first configuration comprises a first parameter and / or a second parameter, the first parameter is used for indicating one or more of a detection period, a period offset, a number of detection slots in each detection period, a first detection symbol in each detection slot, and the second parameter is used for indicating a first time, the first time is one or more of a start time, an end time or a duration length of the terminal device detecting the first PDCCH.

16. The method of claim 15, wherein, The first time is associated with a second time, the second time is one or more of a start time, an end time or a duration length of the terminal device transmitting the first data.

17. The method of claim 16, wherein, The first signaling is associated with the first data.

18. The method of any of claims 12-17, wherein, The first information is further used for indicating a third configuration, the third configuration is used for indicating a third time domain resource; the method further comprises: sending, to the terminal device, a third PDCCH scheduling second signaling only on the third time domain resource, the second signaling is different from the first signaling.

19. The method of any of claims 12-18, wherein, The first information is further used for indicating a fourth configuration, the fourth configuration is used for indicating a first frequency domain resource, the fourth configuration is associated with the first configuration; the method further comprises: sending, to the terminal device, the first PDCCH only on the first frequency domain resource.

20. The method of any of claims 12-19, wherein, The first signaling comprises one or more of the following: an RRC message; a MAC CE; a data plane signaling.

21. A communications device, characterized by The communication device comprises a module for performing the method of any one of claims 1-11, or a module for performing the method of any one of claims 12-20.

22. A communications device, characterized by The communication device comprises a processor configured to perform the method of any one of claims 1-11, or perform the method of any one of claims 12-20.

23. A computer-readable storage medium, characterized in that, The computer readable storage medium is configured to store a computer program which, when executed on a computer, causes the method of any one of claims 1-11 to be performed, or causes the method of any one of claims 12-20 to be performed.

24. A computer program product, characterised in that, The computer program product comprises a computer program which, when executed on a computer, causes the method of any one of claims 1-11 to be performed, or causes the method of any one of claims 12-20 to be performed.

25. A communication system, characterized by The communication system comprises a terminal device and a network device, wherein the terminal device is configured to implement the method of any one of claims 1-11, and the network device is configured to implement the method of any one of claims 12-20.

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