Communication methods, terminals and network-side equipment

Abstract

This application discloses a communication method, a terminal, and a network-side device, belonging to the field of communication technology. The communication method of this application includes: a terminal receiving a first signal based on a first communication mode, the first signal including any one of the following information: first auxiliary information, the first auxiliary information being auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on a second communication mode; first indication information, used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, sounding reference signal (SRS) transmission; the terminal performing a first operation, the first operation including: performing PDCCH detection based on the second communication mode according to the first auxiliary information, or performing the second operation during the activation period of the second communication mode; the power consumption in the first communication mode is lower than the power consumption in the second communication mode.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a communication method, terminal, and network-side equipment. Background Technology

[0002] Related technologies define low-power receivers, also known as low-power wake-up radios (LP-WUR) or near-zero-power wake-up radios (AZP-WUR). The basic working principle of LP-WUR is that the receiver includes a first module and a second module, specifically as follows... Figure 1 As shown, the first module is the main communication module (also called the main module (MainRadio, MR)) used for transmitting and receiving mobile communication data, and the second module is the low-power receiver module (also called the low-power wake-up receiver module) used for receiving wake-up signals. For connected terminals, the low-power wake-up signal (LP-WUS) can be used to instruct the terminal to start listening on the Physical Downlink Control Channel (PDCCH) on the main module, allowing the main module to have more sleep time and thus reducing the terminal's power consumption. However, for PDCCH listening on the main module, the relevant technologies only optimize the times when PDCCH listening is not required, and do not further optimize the times when PDCCH listening is required. Summary of the Invention

[0003] This application provides a communication method, terminal, and network-side device that can solve the problem of optimizing PDCCH monitoring on the main module.

[0004] In a first aspect, a communication method is provided, executed by a terminal, the method comprising: the terminal receiving a first signal based on a first communication mode, the first signal including any one of the following information:

[0005] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0006] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, and sounding reference signal (SRS) transmission;

[0007] The terminal performs a first operation, which includes: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode;

[0008] The energy consumption in the first communication mode is lower than that in the second communication mode.

[0009] Secondly, a communication method is provided, executed by a network-side device, the method comprising: the network-side device sending a first signal to a terminal, the first signal including any one of the following information:

[0010] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0011] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

[0012] Thirdly, a communication device is provided, comprising:

[0013] A first receiving module is configured to receive a first signal based on a first communication mode, wherein the first signal includes any one of the following information:

[0014] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0015] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, and sounding reference signal (SRS) transmission;

[0016] A first processing module is configured to perform a first operation, the first operation including: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode;

[0017] The energy consumption in the first communication mode is lower than that in the second communication mode.

[0018] Fourthly, a communication device is provided, comprising: a second transmitting module, configured to transmit a first signal to a terminal, the first signal including any one of the following information:

[0019] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0020] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

[0021] Fifthly, a communication apparatus is provided, the apparatus being configured to perform the steps of the communication method as described in the first aspect, or to implement the steps of the communication method as described in the second aspect.

[0022] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the communication method as described in the first aspect.

[0023] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive a first signal based on a first communication mode, the first signal including any one of the following: first auxiliary information, the first auxiliary information being auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on a second communication mode; first indication information, used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, sounding reference signal (SRS) transmission; the processor is used to execute a first operation, the first operation including: performing PDCCH detection based on the second communication mode according to the first auxiliary information, or performing the second operation during the activation period of the second communication mode; the power consumption in the first communication mode is lower than the power consumption in the second communication mode.

[0024] In an eighth aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the communication method as described in the second aspect.

[0025] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a first signal to a terminal, the first signal including any one of the following: first auxiliary information, the first auxiliary information being auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on a second communication mode; and first indication information, used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, and sounding reference signal (SRS) transmission.

[0026] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the communication method as described in the first aspect, or implement the steps of the communication method as described in the second aspect.

[0027] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the communication method as described in the first aspect, and the network-side device can be used to perform the steps of the communication method as described in the second aspect.

[0028] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the communication method as described in the first aspect, or to implement the steps of the communication method as described in the second aspect.

[0029] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the communication method as described in the first aspect, or to implement the steps of the communication method as described in the second aspect.

[0030] In this embodiment, the terminal receives a first signal based on a first communication mode, the first signal including first auxiliary information or first indication information; the terminal performs a first operation, the first operation including: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode; the power consumption in the first communication mode is lower than the power consumption in the second communication mode. The terminal performs PDCCH detection based on the second communication mode according to the first auxiliary information, which optimizes the PDCCH detection based on the second communication mode and can reduce the PDCCH detection overhead; or, during the activation period of the second communication mode, only CSI measurement feedback and / or SRS signal transmission are performed, which can reduce the processing operations of the terminal during the activation period and reduce the terminal power consumption. At the same time, through CSI measurement feedback and / or SRS signal transmission, the network-side device can obtain the terminal channel quality information as needed. Attached Figure Description

[0031] Figure 1 This is a schematic diagram illustrating the basic working principle of the relevant LP-WUR.

[0032] Figure 2 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0033] Figure 3 One of the flowcharts of the communication method provided in the embodiments of this application;

[0034] Figure 4 A schematic diagram of two-stage LP-WUS-assisted PDCCH detection provided for an embodiment of this application;

[0035] Figure 5 A schematic diagram of LP-WUS-assisted PDCCH detection provided in an embodiment of this application;

[0036] Figure 6 A second schematic flowchart illustrating the communication method provided in an embodiment of this application;

[0037] Figure 7 This is one of the structural schematic diagrams of the communication device provided in the embodiments of this application;

[0038] Figure 8 This is a second schematic diagram of the structure of the communication device provided in the embodiments of this application;

[0039] Figure 9 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0040] Figure 10 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application;

[0041] Figure 11 A schematic diagram of the hardware structure of a network-side device to implement an embodiment of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the required operation or requested result based on the judgment result.

[0045] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0046] Figure 2This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as User Equipment (UE), and can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.Among them, base stations can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NRNode B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), and Non-Terrestrial Network (NTN) equipment (such as satellite or high-altitude platform). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to specific technical terms. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0047] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), and Local NEF. The core network equipment includes NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), and Non-Terrestrial Network (NTN) equipment (such as satellites or high-altitude platform stations). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0048] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0049] The communication method, terminal, and network-side device provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0050] Figure 3 This is one of the flowcharts illustrating the communication method provided in an embodiment of this application. For example... Figure 3 As shown, the communication method includes steps 310 and 320.

[0051] Step 310: The terminal receives a first signal based on a first communication mode, wherein the first signal includes any one of the following information:

[0052] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0053] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

[0054] It should be noted that the energy consumption in the first communication mode is lower than that in the second communication mode.

[0055] Optionally, the transmission signal of the first communication mode differs from the transmission signal of the second communication mode in at least one of the following: waveform, bandwidth, and signal generation.

[0056] The first communication mode and the second communication mode described in the embodiments of this application can also be replaced by the first module and the second module.

[0057] Multiple communication modes refer to communication modes that differ significantly in one or more aspects such as power consumption, frequency band, data rate, and transmission waveform. This can refer to different operating parameters used by the same communication hardware module, or to multiple different communication modules. Multiple communication modules can exist where at least one component is independent, such as the RF front-end, antenna, or baseband; however, it is also possible for all components to be completely independent.

[0058] Therefore, the subsequent embodiments of this application are applicable to all devices that have more than one communication module or one communication module with multiple communication modes. Furthermore, multiple communication modules may each correspond to multiple communication modes; therefore, in the following embodiments, the communication modules and communication modes can be substituted.

[0059] For example, the first module can be a low-power module (also known as a low-power receiver module or a low-power wake-up receiver module), a low-power receiver, or a low-power transceiver. The second module can be a main module, a main communication module, or a main transceiver, used for transmitting and receiving mobile communication data.

[0060] Optionally, the first signal is a low-power wake-up signal (LP-WUS), but this does not constitute a limitation on the first signal, which can also be other signals.

[0061] Optionally, the first signal includes first auxiliary information, which can be understood as PDCCH blind detection auxiliary information. The terminal performs PDCCH detection based on the PDCCH candidate position indicated by the first auxiliary information, according to the second communication mode, thereby reducing the power consumption of performing PDCCH detection based on the second communication mode.

[0062] It should be noted that in the various embodiments of this application, PDCCH detection can also be replaced by PDCCH blind detection, PDCCH monitoring, and downlink control information (DCI) reception.

[0063] Optionally, the first signal includes first indication information, which is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation may be CSI measurement and feedback, and / or SRS signal transmission.

[0064] The first indication information can also explicitly or implicitly indicate that the UE should not perform the third operation; the UE not performing the third operation means that the UE does not perform the third operation, or it can mean that the UE does not expect to perform the third operation, or that other devices indicate that the UE should not perform the third operation.

[0065] The third operation may be: receiving other channels or signals during the activation period, or transmitting other channels or signals during the activation period. The channels may be PDCCH, PDSCH, PUCCH, or PUSCH, etc., and the signals may be DMRS, phase tracking reference signal (PTRS), positioning reference signal (PRS), etc.

[0066] Optionally, during the activation period of the second communication mode, the terminal does not expect to perform a third operation. For example, after receiving the first indication information, the terminal does not expect to perform PDCCH detection during the activation period of the second communication mode, or the terminal does not expect to receive other channels or send other signals during the activation period.

[0067] Step 320: The terminal performs a first operation, the first operation including: performing PDCCH detection based on the second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode;

[0068] Understandably, the terminal receives the first signal based on the first communication mode. If the first signal includes first auxiliary information, it indicates that the network-side device instructs the terminal to initiate PDCCH detection. The terminal then performs PDCCH detection based on the second communication mode according to the first auxiliary information. The terminal optimizes PDCCH monitoring based on the second communication mode through the coordination of the first and second communication modes, thereby reducing terminal power consumption.

[0069] The terminal receives a first signal based on a first communication mode. If the first signal includes first indication information, a second operation is performed during the activation period of the second communication mode. The second operation may be channel state information (CSI) measurement and feedback, and / or sounding reference signal (SRS) transmission.

[0070] Optionally, the terminal receives an LP-WUS signal via a low-power module. The LP-WUS signal is used to instruct the terminal to perform only CSI measurement feedback (e.g., periodic CSI measurement feedback) during the main module activation period triggered by or adjacent to it. That is, during the activation period, the terminal does not expect to perform other processing. For example, after receiving the instruction, the terminal does not expect to perform PDCCH detection during the activation period, or the terminal does not expect to receive other channels or send other signals during the activation period.

[0071] It should be noted that the activation period described in this application embodiment can be a discontinuous reception (DRX) activation period, or it can be unrelated to DRX, such as the network configuration activation period. In other words, the activation period does not depend on the DRX configuration.

[0072] Alternatively, in another possible approach, the terminal receives an LP-WUS signal via a low-power module. This LP-WUS signal instructs the terminal to perform only SRS signal transmission during or near the activation period of the main module, triggered by the terminal. Similarly, during the activation period, the terminal does not expect to perform other processing; for example, upon receiving this instruction, the terminal does not expect to perform PDCCH detection, periodic CSI measurements, or reporting during the activation period.

[0073] Similarly, the activation period can be a DRX activation period or it can be unrelated to DRX, such as the network configuration activation period, meaning that the activation period does not depend on the DRX configuration.

[0074] Regarding the two possible approaches mentioned above, namely, instructing the terminal to perform only CSI measurement feedback and SRS signal transmission during the activation period based on LP-WUS, only one approach can be supported. For example, in the scenario described, the terminal is limited to performing only CSI measurement feedback during the activation period after receiving the LP-WUS. Alternatively, both approaches can be supported simultaneously. In this case, network configuration or network indication (e.g., LP-WUS) can be used to perform only CSI measurement feedback, only SRS signal transmission, or both CSI measurement feedback and SRS signal transmission during the activation period. However, the UE does not expect to perform other operations, such as the terminal not expecting to perform PDCCH detection during the activation period.

[0075] By triggering the second communication mode to perform only CSI measurement feedback and / or SRS signal transmission during the activation period of the first communication mode, the processing operations of the terminal during the activation period can be reduced, thus reducing terminal power consumption. At the same time, by transmitting CSI measurement feedback and / or SRS signals, the network-side equipment can obtain terminal channel quality information as needed.

[0076] The communication method provided in this application embodiment includes a terminal receiving a first signal based on a first communication mode, the first signal including first auxiliary information or first indication information; the terminal performing a first operation, the first operation including: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode; the power consumption in the first communication mode is lower than the power consumption in the second communication mode, the terminal performing PDCCH detection based on the second communication mode according to the first auxiliary information achieves optimization of PDCCH detection based on the second communication mode, which can reduce PDCCH detection overhead, or, only performing CSI measurement feedback and / or SRS signal transmission during the activation period of the second communication mode, which can reduce the terminal's processing operations during the activation period, reduce terminal power consumption, and at the same time, through CSI measurement feedback and / or SRS signal transmission, the network-side device can obtain terminal channel quality information as needed.

[0077] Optionally, the first signal provides first auxiliary information, which reduces the blind detection overhead when the terminal performs blind PDCCH detection based on the second communication mode or on the main module, thereby reducing the terminal's power consumption.

[0078] In some embodiments, the first auxiliary information includes at least one of the following:

[0079] 1) Aggregation level of one or more PDCCH candidate positions;

[0080] Understandably, the first auxiliary information includes the aggregation level of one or more PDCCH candidate positions.

[0081] The downlink control channel (PDCCH) carries downlink control information (DCI) sent by the base station to the UE. This control information includes: control information related to uplink and downlink data transmission, power control information for uplink data channels or signals, dynamic timeslot configuration, resource preemption indication, and power saving indication. After detecting the control information, the terminal will send or receive data or perform corresponding operations based on the control signals.

[0082] The NR system introduces a control resource set (CORESET), which includes multiple physical resource blocks in the frequency domain and 1 to 3 OFDM symbols in the time domain. CORESET's frequency domain resource indication is based on control channel elements (CCEs), where a CCE is the basic unit constituting a PDCCH, occupying six resource-element groups (REGs) in the frequency domain. A given PDCCH can consist of 1, 2, 4, 8, or 16 CCEs. The number of CCEs constituting a PDCCH is called the aggregation level. The base station can adjust the aggregation level of the PDCCH according to the actual radio channel conditions to achieve link-adaptive transmission. For example, when the radio channel quality between the base station and the UE is poor, the base station will use a higher aggregation level to transmit the PDCCH; when the radio channel quality between the base station and the UE is good, the base station will use a relatively lower aggregation level to transmit the PDCCH. In other words, the aggregation level of the PDCCH actually transmitted by the base station changes over time, but the base station does not notify the terminal of the relevant signaling. The terminal needs to blindly detect the PDCCH at different aggregation levels. The PDCCH to be blindly detected is called a candidate PDCCH, which will be searched through the search space. The search space configuration is used to configure the aggregation level of PDCCH candidates and the number of candidates at each aggregation level.

[0083] In one implementation, the first signal indicates the aggregation level of blind detection. For example, the aggregation levels configured on the network side include {1, 2, 4, 8}, and the aggregation level to be blindly detected is indicated by 2 bits: 00 represents aggregation level 1, 01 represents aggregation level 2, 10 represents aggregation level 4, and 11 represents aggregation level 8. Assuming that LP-WUS (i.e., the first signal) indicates 10, it means that detection is performed at the PDCCH candidate position of aggregation level 4.

[0084] In another implementation, a bitmap is used to indicate the aggregation level to be detected. For example, if the aggregation levels configured on the network side include {1,2,4,8,16}, and the corresponding bitmap is 00111, it means that detection will be performed at the candidate positions with aggregation levels of 4,8,16.

[0085] 2) Aggregation level of the lowest PDCCH candidate position;

[0086] In one implementation, the first signal indicates the lowest aggregation level of the PDCCH candidate position, i.e., the lowest aggregation level for blind detection. For example, the aggregation levels configured on the network side include {1, 2, 4, 8}, and 2 bits are used to indicate the lowest aggregation level that needs to be blindly detected. 00 indicates that the lowest aggregation level to be detected is 1, meaning that aggregation levels 1, 2, 4, and 8 all need to be detected; 01 indicates that the lowest aggregation level to be detected is 2, meaning that aggregation levels 2, 4, and 8 all need to be detected; and so on, which will not be elaborated here.

[0087] 3) The type, format, or group of downlink control information (DCI) to be detected;

[0088] Optionally, the first signal indicates the detection of downlink DCI, or uplink DCI, or simultaneous detection of uplink DCI and downlink DCI.

[0089] In one implementation, the type of DCI to be detected is indicated by 2 bits, such as 01 indicating downlink-related DCI detection, 10 indicating uplink-related DCI detection, and 11 indicating simultaneous detection of both uplink-related and downlink-related DCI.

[0090] In one implementation, the first signal indicates the DCI format or DCI format group to be detected. For example, the network side is configured with different DCI format or DCI format group numbers, and LP-WUS indicates the DCI format or DCI format group to be detected in the form of a bitmap.

[0091] 4) DCI load size;

[0092] Optionally, the first signal indicates the DCI payload size.

[0093] For each time slot, the network side may configure multiple DCI load sizes. Referring to the requirements in NR, a maximum of 4 DCI load sizes can be detected in each time slot, of which a maximum of 3 load sizes are available for DCI scrambled by C-RNTI.

[0094] In one implementation, a bitmap is used to indicate the size of one or more DCI payloads to be detected. For example, several DCI payloads are numbered in ascending order of payload size. If the bitmap is 1100, it means that only the two DCIs with the smallest payloads are blindly detected.

[0095] 5) The carrier index to be detected;

[0096] For a UE configured with carrier aggregation, the first signal can indicate the carrier index n_CI.

[0097] For a UE configured with carrier aggregation, when cross-carrier scheduling is configured for it, it may send a DCI for scheduling the current carrier and a DCI for scheduling other carriers on the current scheduling carrier. For different scheduling situations, the corresponding PDCCH candidate positions can be distinguished by n_CI defined in the protocol.

[0098] In one implementation, one or more n_CIs in the set are indicated using a bitmap. For example, if the network side configures carrier aggregation of 5 carriers for the terminal, with carrier indices from 0 to 4 and a corresponding bitmap size of 5, and assuming that the bitmap carried in the first signal is 10100, it means that DCIs will be transmitted at the PDCCH candidate positions with carrier indices of 0 and 2, and the terminal does not need to perform DCI detection at the PDCCH candidate positions corresponding to carrier indices of 1, 3, and 4.

[0099] 6) The index of the control resource set (CORESET) or sub-CORESET that needs to be detected;

[0100] For scenarios with multiple CORESETs configured, the first signal indicates that the CORESET of the PDCCH needs to be detected.

[0101] In a scenario where multiple cores are configured in a BWP, the first signal indicates the core identifier that needs to be detected. This indication can be provided via a bitmap. For example, if the network side configures 5 cores for the terminal, with core identifiers ranging from 0 to 4 and a corresponding bitmap size of 5, and assuming the bitmap carried in the first signal is 10010, it means that DCI will be transmitted at the PDCCH candidate positions corresponding to core identifiers 0 and 3. The terminal does not need to perform DCI detection at the PDCCH candidate positions corresponding to core identifiers 1, 2, and 4.

[0102] For scenarios where sub-control resource sets are configured under CORESET, i.e., a CORESET contains one or more sub-CORESETs, it indicates that the sub-CORESET index of PDCCH needs to be detected.

[0103] 7) The search space index or search space set index that needs to be detected;

[0104] For scenarios with multiple search spaces configured, the first signal indicates the search space to be detected, such as the search space index. This indication can be given via a bitmap, meaning that one or more search spaces can be monitored.

[0105] Alternatively, the first signal can also be indicated at the granularity of the search space set group.

[0106] 8) Frequency domain cell index for downlink reception;

[0107] For scenarios where a single cell contains multiple frequency domain units (a cell contains multiple discontinuous frequency domain segments), the first signal can also include the frequency domain unit representation that needs to be detected for PDCCH, and the indication method can be through bitmap.

[0108] For scenarios with multiple active bandwidth parts (BWPs), the first signal may also include an indication of one or more active BWPs that need to be detected in the PDCCH, which may be indicated by bitmap.

[0109] 9) PDCCH Demodulation Reference Signal (DMRS) port;

[0110] For scenarios where PDCCH supports multi-layer transmission, the PDCCH demodulation reference signal port (PDCCH DMRSport) can also be indicated, for example, by indicating the PDCCHDMRS port index.

[0111] 10) The quasi-collocation (QCL) or transmission configuration indicator (TCI) status of the PDCCH;

[0112] For example, in a multi-transmission-reception-point (TRP) scenario, the first signal indicates the QCL or TCI state of the master transceiver during reception.

[0113] 11) Number of PDCCH repetitions;

[0114] 12) The PDCCH repeats the corresponding frequency hopping configuration information;

[0115] In PDCCH repetitive scenarios, the frequency hopping configuration information includes at least one of the following: inter-slot frequency hopping, intra-slot frequency hopping, and frequency hopping pattern.

[0116] 13) The received search space indexes or PDCCH candidate indexes need to be merged;

[0117] 14) PDCCH or CORESET rate matching information;

[0118] For example, if the PDSCH or CSI-RS scheduled / allocated by the terminal overlaps with the CORESET, the first signal determines whether the overlapping part needs to be punctured. The granularity of the indicated puncturing / rate matching can be the CORESET, or a part of the CORESET (e.g., CCE), or a fractional CORESET or sub-CORESET resource indication, etc.

[0119] 15) Starting Control Channel Element (CCE) Index;

[0120] 16) CORESET pool index;

[0121] In a multi-TRP scenario, it indicates whether to receive a single TRP or multiple TRPs, for example, indicating one or two CORESET pool indexes.

[0122] 17) CORESET includes the location indication of DCI.

[0123] For example, a bitmap can be used to indicate which CCE locations contain DCI, with each bit corresponding to one CCE.

[0124] 18) Indication of listening opportunities for one or more search spaces over a period of time.

[0125] For one or more search spaces, the first signal may also include an indication of the monitoring occasion (MO) of the one or more search spaces over a period of time. For example, the monitoring occasion associated with the search space includes a first monitoring occasion and an additional monitoring occasion. The first signal can be used to indicate whether PDCCH monitoring is performed on the additional monitoring occasion.

[0126] It should be noted that the information included in the first auxiliary information can be indicated explicitly or implicitly. The implicit indication can be indicated by signal type, scrambling, etc.

[0127] The communication method provided in this application embodiment involves a terminal receiving a first signal, which includes the first auxiliary information of the above types. This first signal can flexibly indicate the candidate position of PDCCH. Based on the first auxiliary information, the terminal can reduce the blind detection overhead when performing blind detection of PDCCH based on the second communication mode, thereby reducing the terminal's power consumption.

[0128] In some embodiments, the effective duration of the first auxiliary information indicated by the first signal is indicated by network configuration and / or by the first signal or other LP-WUS.

[0129] The effective duration can be a continuous period of time or multiple consecutive transmission opportunities.

[0130] The effective duration can be a fixed value pre-configured by the network side, such as starting from the first PDCCH detection time on the network configuration autonomous module, detecting N consecutive radio frames, subframes, time slots, or Orthogonal Frequency Division Multiplexing (OFDM) symbols based on the first auxiliary information indicated in LP-WUS, where N is configured based on system messages or Radio Resource Control (RRC) signaling; or, the network configures multiple effective durations, and the first signal indicates one of the effective durations configured by the network.

[0131] In some embodiments, before the terminal receives the first signal based on the first communication mode, the method further includes:

[0132] The terminal receives a second signal through the first communication mode, and the second signal is used to instruct the terminal to perform PDCCH detection based on the second communication mode.

[0133] Optionally, the second signal is LP-WUS, but this does not constitute a limitation on the second signal, which can also be other signals.

[0134] The following explanation uses LP-WUS as an example of the second signal. In order to distinguish it from the first signal, the second signal is referred to as the first LP-WUS and the first signal is referred to as the second LP-WUS.

[0135] In this embodiment, PDCCH detection is based on two-stage LP-WUS assisted detection. Figure 4 This is a schematic diagram illustrating two-stage LP-WUS-assisted PDCCH detection as provided in an embodiment of this application. Figure 4 As shown, the terminal receives the second signal (i.e., ...) through a low-power radio (LPR) module. Figure 4 The first LP-WUS (in the context of the second communication mode) is used to wake up the main module to perform PDCCH detection, which can also be understood as performing PDCCH detection based on the second communication mode. The terminal performs measurement through the low-power module, reports the measurement results, and then the terminal receives the first signal through the low-power module (which can also be understood as receiving the first signal based on the first communication mode). The first signal (i.e. Figure 4 The second LP-WUS in the first signal includes first auxiliary information. Then, the terminal performs PDCCH detection through the main module (Main Radio, MR) based on the first auxiliary information in the first signal.

[0136] It should be noted that, Figure 4 The time gap in the definition is the minimum time interval between LP-WUS reception and MR initiation of PDCCH detection. This time interval includes at least the time consumed by the following processes: LP-WUS processing time, MR wake-up time, and MR time-frequency synchronization time. The terminal can report its supported minimum gap capability.

[0137] For connected UEs, the first LP-WUS can carry a user identifier to indicate the terminal that needs to perform PDCCH detection.

[0138] The communication method provided in this application embodiment allows the terminal to receive a second signal through a first communication mode and trigger the terminal to start PDCCH detection through the second signal, which can reduce terminal power consumption.

[0139] Optionally, the second signal includes at least one of the following information:

[0140] 1) First signal indication field, used to indicate whether a first signal exists;

[0141] Optionally, for scenarios where the network side has configured the configuration information of the first signal (i.e., the second LP-WUS configuration), the second signal may also include an indication of whether the first signal exists (i.e., the first signal indication field). For scenarios where the first signal does not exist, the terminal does not need to detect the candidate time / resource of the first signal. For example, the indication field can be indicated by 1 bit.

[0142] The communication method provided in this application embodiment includes a first signal indication field in the second signal. The terminal can know whether it needs to perform detection on the candidate time or resource of the first signal, which can reduce the terminal's power consumption.

[0143] Whether the first signal indication field exists depends on the network configuration. Optionally, if the terminal receives configuration information for the first signal, the second signal may include the first signal indication field.

[0144] For example, if the network side provides configuration information for the first signal, then the second signal contains the indication field of the first signal; otherwise, the second signal does not contain the indication field of the first signal.

[0145] 2) Timing information of the second signal and the first signal.

[0146] The presence of the first signal is determined based on the timing information of the second signal and the first signal. The timing information of the second signal and the first signal is used to indicate the time relationship between them.

[0147] For scenarios where low-power signal quality information is not transmitted, the timing relationship between the second signal and the first signal can be based on a network preset or on an indication from the second signal. In one possible implementation, when the second signal indicates the presence of the first signal, the reception time of the first signal is determined based on the network-preset timing information between the two. In another possible implementation, the network side configures multiple sets of timing relationships between the second signal and the first signal. The second signal includes this timing indication field, for example, containing N bits. When its indication is 000 (taking N as an example), it indicates that the first signal does not exist. When its indication is non-zero (non-000), it indicates the Mth timing relationship among the multiple sets of timing relationships configured by the network side, and the reception time of the first signal is determined based on this timing relationship.

[0148] The communication method provided in this application embodiment includes timing information of the second signal and the first signal in the second signal. The terminal can determine whether it needs to receive the first signal, and then determine the receiving time of the first signal when it needs to receive the first signal, which can reduce the terminal's power consumption.

[0149] In some embodiments, the second signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0150] Optionally, the third signal is a low-power uplink signal used to provide feedback on signal quality information. For terminals that support low-power transmission, when the network is configured to use the low-power uplink signal for feedback on signal quality information, the second signal may also include an indication to transmit the low-power uplink signal.

[0151] In this embodiment, for a low-power module with transceiver functionality, after receiving the first LP-WUS, the terminal is triggered to use the low-power module to feed back the measurement result. The feedback of the measurement result can be in at least one of the following ways:

[0152] Method 1: Configure a measurement threshold on the network side, and the terminal provides feedback on whether the value is above or below the threshold via 1 bit. The measurement threshold can be one of L1 RSRP, L1 RSRQ, or L1 SINR.

[0153] Method 2: The network side configures multiple measurement thresholds or multiple measurement intervals. The terminal feeds back the interval corresponding to the measurement result through N bits, where N equals log2 (the number of configured measurement intervals). The measurement threshold / range can be one of L1 RSRP, L1RSRQ, and L1 SINR.

[0154] In one example, three measurement thresholds are configured: Threshold 1, Threshold 2, and Threshold 3. There are four measurement intervals (i.e., N=4): less than Threshold 1, greater than or equal to Threshold 1 and less than Threshold 2, greater than or equal to Threshold 2 and less than Threshold 3, and greater than or equal to Threshold 3. Each interval requires 2 bits for indication.

[0155] Method 3: The terminal reports L1 measurement results, such as L1-RSRP, CQI, etc.

[0156] The communication method provided in this application embodiment includes an indication to send a third signal in the second signal. The third signal is used to provide feedback signal quality information. After receiving the second signal, the terminal triggers the terminal to use a low-power module to provide feedback on the measurement results, which can reduce the terminal's power consumption.

[0157] In some embodiments, the first signal further includes second indication information, which is used to instruct the terminal to perform PDCCH detection based on a second communication mode.

[0158] It is understood that in this embodiment, in addition to carrying auxiliary information (i.e., first auxiliary information) for performing PDCCH detection based on the second communication mode, the first signal may also include the UE identifier that needs to be woken up. That is, the first signal also includes second indication information, used to instruct the terminal to wake up the MR, thereby performing PDCCH detection based on the second communication mode. In other words, there is no distinction between the first LP-WUS and the second LP-WUS in the aforementioned embodiments.

[0159] Figure 5 This is a schematic diagram illustrating LP-WUS-assisted PDCCH detection provided in an embodiment of this application. Figure 5 As shown, LP-WUS (i.e., the first signal) is used to wake up MR and provide first auxiliary information to assist PDCCH detection.

[0160] The communication method provided in this application embodiment, which includes a first signal to wake up the MR and provide first auxiliary information to assist PDCCH detection, can reduce terminal power consumption.

[0161] Optionally, the first signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0162] For low-power modules with transmission capabilities, signal quality information (i.e., [missing information]) can be transmitted through the low-power module. Figure 5 The PPR measurement results (from the signal quality analysis) are used to assist the network side in determining the PDCCH detection on the MR. For example, by using the feedback signal quality information, the network side can be assisted in determining the aggregation level of PDCCH detection on the MR.

[0163] In this embodiment, the first LP-WUS and the second LP-WUS are not distinguished. To assist in providing PDCCH detection auxiliary information in the LP-WUS, the low-power module feeds back signal quality information before the LP-WUS. That is, the low-power module measures the channel quality information based on the LP-SS, and after feeding back the information, it receives the LP-WUS. This LP-WUS can carry relevant information to assist the MR in performing PDCCH detection.

[0164] It should be noted that in this embodiment, the low-power module feedback measurement results are the same as in the aforementioned embodiment that distinguishes between the first LP-WUS and the second LP-WUS, for example, based on 1-bit feedback being above / below a threshold, or based on the signal quality range corresponding to N-bit feedback, etc. However, the timing of the low-power module feedback measurement results differs from that in the aforementioned embodiment that distinguishes between the first LP-WUS and the second LP-WUS.

[0165] In this embodiment, the feedback of channel quality information is based on the terminal's low-power module. That is, a third signal is sent based on the first communication mode.

[0166] The communication method provided in this application embodiment further includes an indication to send a third signal in the first signal. The third signal is used to provide feedback signal quality information. After the terminal receives the first signal, it triggers the terminal to use a low-power module to provide feedback measurement results, which can assist the network side in determining the relevant information of PDCCH detection on MR and reduce terminal power consumption.

[0167] In some embodiments, the method further includes:

[0168] The terminal receives first configuration information, which is used to instruct the transmission of the third signal;

[0169] The terminal sends the third signal based on the first configuration information and the first communication mode.

[0170] It is understood that network-side devices can configure whether to feed back measurement results based on low-power modules and provide relevant configuration information for carrying signals that carry back measurement results from low-power modules through higher-layer signaling. That is, network-side devices indicate whether to send a third signal and the relevant configuration of the third signal through the first configuration information. The terminal receives the first configuration information and sends the third signal based on the first communication mode according to the first configuration information.

[0171] In some embodiments, the first configuration information includes at least one of the following:

[0172] 1) One or more signal quality thresholds;

[0173] Optionally, the network side can be configured with a signal quality threshold, also known as a measurement threshold. The terminal provides feedback on whether the signal is above or below this threshold using 1 bit. This threshold can be one of L1 RSRP, L1 RSRQ, or L1 SINR.

[0174] Optionally, the network side can be configured with multiple measurement thresholds. The terminal can feed back the interval corresponding to the measurement result through N bits, where N is equal to log2 (the number of configured measurement intervals). The measurement threshold can be one of L1 RSRP, L1 RSRQ, and L1 SINR.

[0175] 2) Multiple measurement intervals;

[0176] The network side is configured with multiple measurement intervals. The terminal feeds back the interval corresponding to the measurement result through N bits, where N is equal to log2 (the number of configured measurement intervals). The measurement threshold / range can be one of L1 RSRP, L1 RSRQ, and L1 SINR.

[0177] In one example, three measurement thresholds are configured: Threshold 1, Threshold 2, and Threshold 3. There are four measurement intervals (i.e., N=4): less than Threshold 1, greater than or equal to Threshold 1 and less than Threshold 2, greater than or equal to Threshold 2 and less than Threshold 3, and greater than or equal to Threshold 3. Each interval requires 2 bits for indication.

[0178] 3) Configuration information of the third signal;

[0179] Optionally, the network-side device configures the configuration information of the third signal via higher-layer signaling.

[0180] 4) The timing relationship between one or more of the third signals and the first signal;

[0181] The transmission time of one or more of the third signals can be determined based on the timing relationship between the third signals and the first signal, and the transmission timing of the first signal.

[0182] The timing relationship between one or more of the third signals and the first signal may be preset by the network and / or indicated by the first signal.

[0183] For example, the network configures a time-domain interval between multiple first signals and the signal quality information feedback they trigger, wherein the first signals indicate one of the time-domain intervals configured by the network.

[0184] 5) The third signal transmission time window information determined based on the reception time of the first signal;

[0185] 6) The timing relationship between one or more of the third signals and the second signal;

[0186] The transmission time of one or more of the third signals can be determined based on the timing relationship between the third signals and the second signals, and the transmission timing of the second signals.

[0187] The timing relationship between one or more of the third signals and the second signal can be preset by the network or indicated by the second signal.

[0188] For example, the network configures a time-domain interval between multiple second signals and the signal quality information feedback they trigger, wherein the second signals indicate one of the time-domain intervals configured by the network.

[0189] 7) The third signal transmission time window information determined based on the reception time of the second signal;

[0190] That is, based on the reception time of the second signal, the transmission time of the third signal is estimated backward. For example, the third signal is transmitted at the first uplink moment before the t_trans moment, which is before the reception time of the second signal.

[0191] 8) A timing relationship between one or more of the third signals and the fourth signal, wherein the fourth signal is used for measurement;

[0192] Optionally, the fourth signal refers to the Low Power Synchronization Signal (LP-SS), which is used for measurement.

[0193] 9) Minimum time interval requirement between one or more of the third signals and the fourth signal;

[0194] Optionally, the network side can also configure or predefine the minimum time interval requirement t_min between the fourth signal (e.g., LP-SS) and the third signal (i.e., the low-power uplink signal). If the fourth signal falls within t_min before the uplink signal transmission time calculated in the above manner (that is, one or more LP-SS signals to be measured are only within this minimum time interval, and there is not enough time to process the measurement results and generate feedback signals), the terminal will not send the feedback signal, even if the network is configured to send the third signal.

[0195] 10) The number of times the third signal is sent;

[0196] 11) The transmission time interval of the third signal.

[0197] The communication method provided in this application embodiment allows the terminal to receive first configuration information, determine whether to feed back the measurement results from the low-power module and the relevant configuration information of the third signal, and, based on the measurement results from the low-power module, assist the network side in determining auxiliary information for performing PDCCH detection based on the second communication mode, thereby reducing terminal power consumption.

[0198] As described in the previous embodiments, when the terminal receives LP-WUS, it wakes up the main module MR. During this period, since the main module needs to perform some processing, there is a time gap between LP-WUS and MR initiating PDCCH listening. After the network side sends the first signal, considering the transmission time of the first signal, the terminal's processing delay, and the time gap between the second signal and MR initiating PDCCH listening, the effective time of the first signal may be before or after MR initiating PDCCH listening.

[0199] In some embodiments, during the effective time of the first signal, the terminal performs PDCCH detection based on the second communication mode according to the first auxiliary information.

[0200] The communication method provided in this application embodiment performs PDCCH detection based on the first auxiliary information and the second communication mode during the effective time of the first signal, which can effectively reduce terminal power consumption.

[0201] In some embodiments, if the first signal takes effect after PDCCH detection is initiated based on the second communication mode, the terminal performs PDCCH detection at all PDCCH candidate positions or at the PDCCH candidate position corresponding to the first target before the first signal takes effect.

[0202] The first target is either network-configured or protocol-predefined.

[0203] Optionally, the first target can be the highest aggregation level. For example, before the first signal takes effect, the terminal searches all PDCCH candidate positions, or searches the PDCCH candidate positions with the highest aggregation level.

[0204] Optionally, the primary objective can also be other constraints on the aggregation level, or constraints on uplink or downlink scheduling, or constraints on DCI load size, or constraints on the number of listening carriers, or constraints on listening frequency domain units, or constraints on listening BWPs, or other constraints that can indicate the PDCCH candidate position.

[0205] The communication method provided in this application embodiment, if the first signal only takes effect after the terminal starts PDCCH detection based on the second communication mode, then before the first signal takes effect, the terminal performs PDCCH detection at all PDCCH candidate positions, or at the PDCCH candidate position corresponding to the first target predefined by the network configuration or protocol, thereby improving the flexibility of PDCCH detection and reducing the energy consumption of PDCCH detection.

[0206] In some embodiments, when the terminal does not receive the first signal, the PDCCH detection method of the terminal based on the second communication mode is: to perform detection at the PDCCH candidate position corresponding to the first target, or to perform detection based on the first PDCCH candidate position configured by the network, wherein the first target is configured by the network or predefined by the protocol.

[0207] Understandably, when the network provides configuration information for the first signal and the second signal instructs the MR to start PDCCH listening, but does not instruct the first signal to be sent (i.e., the scenario where the first signal is not sent), the terminal's PDCCH detection on the MR can also be limited to detection only at the PDCCH candidate position corresponding to the first target (such as through protocol predefinition or network configuration), or detection based on the first PDCCH candidate position configured by the network.

[0208] For example, PDCCH monitoring based on the second communication mode can be limited to detection only at the PDCCH candidate position with the highest aggregation level, or PDCCH detection can be performed based on the first aggregation level configured or indicated by the network.

[0209] It should be noted that the primary objective can be a limitation on the aggregation level, or a limitation on uplink or downlink scheduling, or a limitation on the DCI load size, or a limitation on the number of listening carriers, or a limitation on the listening frequency domain unit, or a limitation on the listening BWP, or other limitations that can indicate the candidate position of PDCCH.

[0210] The communication method provided in this application embodiment reduces the energy consumption of PDCCH detection if the terminal does not receive the first signal. It performs PDCCH detection at the PDCCH candidate position configured in the network or at the PDCCH candidate position corresponding to the first target predefined in the network configuration or protocol.

[0211] In some embodiments, the duration of the PDCCH detection method of the terminal based on the second communication mode is configured by the network, or the triggering condition for the terminal to change the PDCCH detection method based on the second communication mode is configured by the network.

[0212] Optionally, the network side can also configure the duration or triggering conditions for changing the PDCCH detection method based on the second communication mode. For example, the duration of the monitoring method can be configured to be N slots; or the duration of the monitoring method can be configured to be M slots after the CSI report, where M is a non-negative integer; or the DCI can indicate the subsequent blind detection aggregation level, and monitoring can be performed based on the monitoring method before this DCI is received.

[0213] It should be noted that, for the sake of simplicity, only the aggregation level is used as an example here. In addition to the aggregation level, it can also be the aforementioned limitation to downlink / uplink scheduling only, limitation to DCI load size, limitation to the number of carriers to be monitored, limitation to the frequency domain unit to be monitored, limitation to the BWP to be monitored, etc.

[0214] In some embodiments, the method further includes: the terminal receiving second configuration information, the second configuration information including configuration information related to a second operation during the activation period of the second communication mode.

[0215] In some embodiments, the second configuration information includes at least one of the following:

[0216] Activation period duration or duration;

[0217] CSI reports configuration information, including at least one of the following: CSI reported information, CSI reported resource information;

[0218] CSI-RS configuration information, including at least one of the following: CSI-RS resource configuration information, CSI-RS;

[0219] SRS configuration information includes at least one of the following: SRS resource configuration information, SRS signal configuration information, and SRS transmit power.

[0220] Optionally, the terminal may perform the third operation while performing the second operation.

[0221] "Not performing a third operation" means that the UE does not perform a third operation, or it could mean that the UE does not expect to perform a third operation, or that other devices instruct the UE not to perform a third operation.

[0222] The third operation may be: receiving other channels or signals during the activation period, or transmitting other channels or signals during the activation period. The channels may be PDCCH, PDSCH, PUCCH, or PUSCH, etc., and the signals may be DMRS, phase tracking reference signal (PTRS), positioning reference signal (PRS), etc.

[0223] Optionally, the terminal receives an LP-WUS signal via a low-power module. The LP-WUS signal is used to instruct the terminal to perform only CSI measurement feedback (e.g., periodic CSI measurement feedback) during the main module activation period triggered by or adjacent to it. That is, during the activation period, the terminal does not expect to perform any other operations besides the second operation. For example, after receiving this instruction, the terminal does not expect to perform PDCCH detection during the activation period, or the terminal does not expect to receive other channels or send other signals during the activation period.

[0224] It should be noted that the activation period described in this application embodiment can be a DRX activation period, or it can be unrelated to DRX, such as the network configuration activation period. In other words, the activation period does not depend on the DRX configuration.

[0225] Optionally, the network configures CSI reporting information in this scenario. In one possible implementation, CSI reporting information can be divided into two categories: periodic reporting of L1-RSRP, or periodic reporting of non-L1-RSRP CSI. In some embodiments, the first signal is further used to indicate at least one of the CSI reporting information types configured by the network during the activation period of the second communication mode. That is, LP-WUS can be used to indicate reporting based on one of the two methods, or reporting based on both methods simultaneously.

[0226] Optionally, the network is configured to report CSI content in this scenario, for example, the CQI in the CSI report is broadband CQI reporting.

[0227] Alternatively, in another possible approach, the terminal receives an LP-WUS signal via a low-power module. This LP-WUS signal instructs the terminal to perform only SRS signal transmission during or near the activation period of the main module, triggered by the terminal. Similarly, during the activation period, the terminal does not expect to perform other processing; for example, upon receiving this instruction, the terminal does not expect to perform PDCCH detection, periodic CSI measurements, or reporting during the activation period.

[0228] Similarly, the activation period can be a DRX activation period or it can be unrelated to DRX, such as the network configuration activation period, meaning that the activation period does not depend on the DRX configuration.

[0229] Optionally, the network configuration or protocol predefines the SRS transmit power for this scenario; for example, the network configures the SRS transmit power.

[0230] Optionally, for terminals that support SRS antenna switching, the terminal transmits SRS signals based on the SRS configuration provided by the network, that is, the terminal transmits SRS signals through antenna polling.

[0231] Regarding the two possible approaches mentioned above, namely, instructing the terminal to perform only CSI measurement feedback and SRS signal transmission during the activation period based on LP-WUS, only one approach can be supported. For example, in the scenario described, the terminal is limited to performing only CSI measurement feedback during the activation period after receiving the LP-WUS. Alternatively, both approaches can be supported simultaneously. In this case, network configuration or network indication (e.g., LP-WUS) can be used to perform only CSI measurement feedback, only SRS signal transmission, or both CSI measurement feedback and SRS signal transmission during the activation period. However, the UE does not expect to perform other operations, such as the terminal not expecting to perform PDCCH detection during the activation period.

[0232] The communication method provided in this application embodiment involves a terminal receiving a first signal based on a first communication mode. The first signal instructs the terminal to perform a second operation during the activation period of the second communication mode. The terminal performs the second operation during the activation period of the second communication mode according to second configuration information, and does not perform other operations besides the second operation during the activation period. This can reduce the processing operations of the terminal during the activation period of the second communication mode, thereby reducing terminal power consumption. Furthermore, due to CSI feedback and SRS signal transmission, the network side can obtain terminal channel quality information as needed, and further determine auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the terminal channel quality information, further reducing terminal power consumption.

[0233] Figure 6 This is a second schematic flowchart illustrating the communication method provided in an embodiment of this application. Figure 6 As shown, the communication method includes: step 610.

[0234] Step 610: The network-side device sends a first signal to the terminal, the first signal including any one of the following information:

[0235] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0236] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

[0237] The communication method provided in this application is implemented by a network-side device, which is a technical solution of the same concept as the aforementioned terminal-side communication method. Therefore, for the understanding of the communication method provided in this application, you can refer to the description in the aforementioned terminal-side communication method. The understanding of the same content will not be repeated here.

[0238] Optionally, the first indication information may also explicitly or implicitly indicate that the UE does not perform the third operation; the UE not performing the third operation means that the UE does not perform the third operation, or it may mean that the UE does not expect to perform the third operation, or that other devices indicate that the UE does not perform the third operation.

[0239] The third operation may be: receiving other channels or signals during the activation period, or transmitting other channels or signals during the activation period. The channels may be PDCCH, PDSCH, PUCCH, or PUSCH, etc., and the signals may be DMRS, phase tracking reference signal (PTRS), positioning reference signal (PRS), etc.

[0240] The communication method provided in this application embodiment involves a network-side device sending a first signal to a terminal. The first signal includes first auxiliary information or first indication information, enabling the terminal to perform PDCCH detection based on a second communication mode according to the first auxiliary information. This optimizes the PDCCH detection based on the second communication mode, reducing PDCCH detection overhead. Alternatively, it enables the terminal to perform only CSI measurement feedback and / or SRS signal transmission during the activation period of the second communication mode, reducing the terminal's processing operations during the activation period and lowering terminal power consumption. Simultaneously, the terminal's CSI measurement feedback and / or SRS signal transmission allows the network-side device to obtain terminal channel quality information as needed.

[0241] In some embodiments, the first auxiliary information includes at least one of the following:

[0242] The aggregation level of one or more PDCCH candidate positions;

[0243] The aggregation level of the lowest PDCCH candidate position;

[0244] The downlink control information to be detected is the DCI type, DCI format, or DCI format group.

[0245] DCI load size;

[0246] Carrier index to be detected;

[0247] The control resource set index or sub-control resource set index that needs to be detected;

[0248] The search space index or search space set group index that needs to be detected;

[0249] downlink reception frequency domain cell index;

[0250] PDCCH demodulation reference signal port;

[0251] The quasi-co-location QCL or transmission configuration indication status of the PDCCH;

[0252] Number of PDCCH repetitions;

[0253] PDCCH repeats the corresponding frequency hopping configuration information;

[0254] The received search space indexes or PDCCH candidate indexes need to be merged;

[0255] PDCCH or CORESET rate matching information;

[0256] Start Control Channel Element (CCE) Index;

[0257] CORESET pool index;

[0258] CORESET includes the location indication of DCI.

[0259] In some embodiments, the effective duration of the first auxiliary information is configured by the network-side device and / or indicated by the first signal.

[0260] In some embodiments, before the network-side device sends the first signal to the terminal, the method further includes:

[0261] A second signal is sent to the terminal, the second signal being used to instruct the terminal to perform PDCCH detection based on a second communication mode.

[0262] In some embodiments, the first signal further includes second indication information, which is used to instruct the terminal to perform PDCCH detection based on a second communication mode.

[0263] In some embodiments, the second signal includes at least one of the following:

[0264] The first signal indication field is used to indicate whether a first signal is present.

[0265] Timing information between the second signal and the first signal.

[0266] In some embodiments, the method further includes sending configuration information of a first signal to the terminal.

[0267] In some embodiments, the second signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0268] In some embodiments, the first signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0269] In some embodiments, the method further includes:

[0270] Send first configuration information to the terminal, the first configuration information being used to instruct the transmission of the third signal.

[0271] In some embodiments, the first configuration information includes at least one of the following:

[0272] One or more signal quality thresholds;

[0273] Multiple measurement intervals;

[0274] Configuration information of the third signal;

[0275] The timing relationship between one or more of the third signals and the first signal;

[0276] The third signal transmission time window information is determined based on the reception time of the first signal;

[0277] The timing relationship between one or more of the third signals and the second signal;

[0278] The third signal transmission time window information is determined based on the reception time of the second signal;

[0279] A timing relationship between one or more of the third signals and the fourth signal, wherein the fourth signal is used for measurement;

[0280] Minimum time interval requirement between one or more of the third signals and the fourth signal;

[0281] The number of times the third signal is sent;

[0282] The transmission time interval of the third signal.

[0283] In some embodiments, the method further includes: sending third indication information to the terminal to instruct the terminal to perform PDCCH detection based on a second communication mode at a first PDCCH candidate position or at a PDCCH candidate position corresponding to a first target.

[0284] Understandably, in one implementation, the third indication information is used to indicate the first PDCCH candidate position. When the network-side device does not send the first signal, the network-side device configures or indicates the first PDCCH candidate position to the terminal, so that the terminal performs PDCCH detection based on the second communication mode at the first PDCCH candidate position when it does not receive the first signal.

[0285] Optionally, the third indication information is used to instruct the first target that, in the absence of the network-side device sending the first signal, the terminal performs PDCCH detection based on the second communication mode at the PDCCH candidate position corresponding to the first target. Alternatively, if the first signal takes effect after the PDCCH detection based on the second communication mode is initiated, the terminal performs PDCCH detection based on the second communication mode at the PDCCH candidate position corresponding to the first target.

[0286] In some embodiments, the method further includes:

[0287] Send to the terminal the duration of the PDCCH detection method based on the second communication mode or the triggering condition for the change of the PDCCH detection method based on the second communication mode.

[0288] In some embodiments, the method further includes:

[0289] Send second configuration information to the terminal, the second configuration information including configuration information related to the second operation during the activation period of the second communication mode.

[0290] In some embodiments, the second configuration information includes at least one of the following:

[0291] Activation period duration or duration;

[0292] CSI reports configuration information, including at least one of the following: CSI reported information, CSI reported resource information;

[0293] CSI-RS configuration information, including at least one of the following: CSI-RS resource configuration information, CSI-RS;

[0294] SRS configuration information includes at least one of the following: SRS resource configuration information, SRS signal configuration information, and SRS transmit power.

[0295] In some embodiments, the method further includes;

[0296] The network-side device is configured with CSI reporting information types;

[0297] The first signal is also used to indicate at least one of the CSI reporting information types configured by the network-side device during the activation period of the second communication mode.

[0298] In some embodiments, the activation period is the DRX activation period or the network configuration activation period.

[0299] The communication methods provided in the above embodiments of this application can achieve the same technical effects as the terminal-side communication methods, and will not be described in detail here.

[0300] The communication method provided in this application can be executed by a communication device. This application uses the example of a communication device executing the communication method to illustrate the communication device provided in this application.

[0301] This application provides a communication device. As an example, the communication device may be a communication equipment or a component within a communication equipment, such as a chip. The communication equipment may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0302] The communication device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, etc., such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0303] For details, see Figure 7 When the communication device is a terminal or a component within a terminal, the communication device 700 includes a first receiving module 701 and a first processing module 702, wherein...

[0304] The first receiving module 701 is configured to receive a first signal based on a first communication mode, wherein the first signal includes any one of the following information:

[0305] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0306] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, and sounding reference signal (SRS) transmission;

[0307] The first processing module 702 is configured to perform a first operation, the first operation including: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode;

[0308] The energy consumption in the first communication mode is lower than that in the second communication mode.

[0309] In some embodiments, the first auxiliary information includes at least one of the following:

[0310] The aggregation level of one or more PDCCH candidate positions;

[0311] The aggregation level of the lowest PDCCH candidate position;

[0312] The downlink control information to be detected is the DCI type, DCI format, or DCI format group.

[0313] DCI load size;

[0314] Carrier index to be detected;

[0315] The control resource set index or sub-control resource set index that needs to be detected;

[0316] The search space index or search space set group index that needs to be detected;

[0317] downlink reception frequency domain cell index;

[0318] PDCCH demodulation reference signal port;

[0319] The quasi-co-location QCL or transmission configuration indication status of the PDCCH;

[0320] Number of PDCCH repetitions;

[0321] PDCCH repeats the corresponding frequency hopping configuration information;

[0322] The received search space indexes or PDCCH candidate indexes need to be merged;

[0323] PDCCH or CORESET rate matching information;

[0324] Start Control Channel Element (CCE) Index;

[0325] CORESET pool index;

[0326] CORESET includes the location indication of DCI.

[0327] In some embodiments, the effective duration of the first auxiliary information is configured via the network and / or indicated by the first signal.

[0328] In some embodiments, the first receiving module is further configured to:

[0329] The terminal receives a second signal through the first communication mode, and the second signal is used to instruct the terminal to perform PDCCH detection based on the second communication mode.

[0330] In some embodiments, the first signal further includes second indication information, which is used to instruct the terminal to perform PDCCH detection based on a second communication mode.

[0331] In some embodiments, the second signal includes at least one of the following:

[0332] The first signal indication field is used to indicate whether a first signal is present.

[0333] Timing information between the second signal and the first signal.

[0334] In some embodiments, when the terminal receives configuration information of the first signal, the second signal includes the first signal indication field.

[0335] In some embodiments, the second signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0336] In some embodiments, the first signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0337] In some embodiments, the first receiving module is further configured to: receive first configuration information, the first configuration information being used to indicate the transmission of the third signal;

[0338] The device further includes a first transmitting module, configured to transmit the third signal based on the first configuration information and the first communication mode.

[0339] In some embodiments, the first configuration information includes at least one of the following:

[0340] One or more signal quality thresholds;

[0341] Multiple measurement intervals;

[0342] Configuration information of the third signal;

[0343] The timing relationship between one or more of the third signals and the first signal;

[0344] The third signal transmission time window information is determined based on the reception time of the first signal;

[0345] The timing relationship between one or more of the third signals and the second signal;

[0346] The third signal transmission time window information is determined based on the reception time of the second signal;

[0347] A timing relationship between one or more of the third signals and the fourth signal, wherein the fourth signal is used for measurement;

[0348] Minimum time interval requirement between one or more of the third signals and the fourth signal;

[0349] The number of times the third signal is sent;

[0350] The transmission time interval of the third signal.

[0351] In some embodiments, during the effective time of the first signal, PDCCH detection based on the second communication mode is performed according to the first auxiliary information.

[0352] In some embodiments, if the first signal takes effect after PDCCH detection is initiated based on the second communication mode, PDCCH detection is performed at all PDCCH candidate locations or at the PDCCH candidate location corresponding to the first target before the first signal takes effect, wherein the first target is network-configured or protocol-predefined.

[0353] In some embodiments, when the terminal does not receive the first signal, the PDCCH detection method based on the second communication mode is: to perform detection at the PDCCH candidate position corresponding to the first target, or to perform detection based on the first PDCCH candidate position configured by the network, wherein the first target is configured by the network or predefined by the protocol.

[0354] In some embodiments, the duration of the PDCCH detection method based on the second communication mode is configured by the network, or the triggering condition for the change of the PDCCH detection method based on the second communication mode is configured by the network.

[0355] In some embodiments, the first receiving module is further configured to receive second configuration information, the second configuration information including configuration information related to the second operation during the activation period of the second communication mode.

[0356] In some embodiments, the second configuration information includes at least one of the following:

[0357] Activation period duration or duration;

[0358] CSI reports configuration information, including at least one of the following: CSI reported information, CSI reported resource information;

[0359] CSI-RS configuration information, including at least one of the following: CSI-RS resource configuration information, CSI-RS;

[0360] SRS configuration information includes at least one of the following: SRS resource configuration information, SRS signal configuration information, and SRS transmit power.

[0361] In some embodiments, the first signal is further used to indicate at least one of the CSI reporting information types configured in the network during the activation period of the second communication mode.

[0362] In some embodiments, the activation period is the DRX activation period or the network configuration activation period.

[0363] In some embodiments, the terminal does not perform a third operation when performing a second operation.

[0364] The communication device provided in this application embodiment can achieve... Figures 3 to 5 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0365] See Figure 8 When the communication device is a network-side device or a component within a network-side device, the communication device 800 includes a second transmitting module 801, used to transmit a first signal to the terminal, the first signal including any one of the following information:

[0366] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0367] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

[0368] In some embodiments, the first auxiliary information includes at least one of the following:

[0369] The aggregation level of one or more PDCCH candidate positions;

[0370] The aggregation level of the lowest PDCCH candidate position;

[0371] The downlink control information to be detected is the DCI type, DCI format, or DCI format group.

[0372] DCI load size;

[0373] Carrier index to be detected;

[0374] The control resource set index or sub-control resource set index that needs to be detected;

[0375] The search space index or search space set group index that needs to be detected;

[0376] downlink reception frequency domain cell index;

[0377] PDCCH demodulation reference signal port;

[0378] The quasi-co-location QCL or transmission configuration indication status of the PDCCH;

[0379] Number of PDCCH repetitions;

[0380] PDCCH repeats the corresponding frequency hopping configuration information;

[0381] The received search space indexes or PDCCH candidate indexes need to be merged;

[0382] PDCCH or CORESET rate matching information;

[0383] Start Control Channel Element (CCE) Index;

[0384] CORESET pool index;

[0385] CORESET includes the location indication of DCI.

[0386] In some embodiments, the effective duration of the first auxiliary information is configured by the network-side device and / or indicated by the first signal.

[0387] In some embodiments, the second sending module is further configured to:

[0388] A second signal is sent to the terminal, the second signal being used to instruct the terminal to perform PDCCH detection based on a second communication mode.

[0389] In some embodiments, the first signal further includes second indication information, which is used to instruct the terminal to perform PDCCH detection based on a second communication mode.

[0390] In some embodiments, the second signal includes at least one of the following:

[0391] The first signal indication field is used to indicate whether a first signal is present.

[0392] Timing information between the second signal and the first signal.

[0393] In some embodiments, the second sending module 801 is further configured to send configuration information of the first signal to the terminal.

[0394] In some embodiments, the second signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0395] In some embodiments, the first signal includes an indication to send a third signal, which is used to provide feedback signal quality information.

[0396] In some embodiments, the second sending module 801 is further configured to: send first configuration information to the terminal, the first configuration information being used to indicate the transmission of the third signal.

[0397] In some embodiments, the first configuration information includes at least one of the following:

[0398] One or more signal quality thresholds;

[0399] Multiple measurement intervals;

[0400] Configuration information of the third signal;

[0401] The timing relationship between one or more of the third signals and the first signal;

[0402] The third signal transmission time window information is determined based on the reception time of the first signal;

[0403] The timing relationship between one or more of the third signals and the second signal;

[0404] The third signal transmission time window information is determined based on the reception time of the second signal;

[0405] A timing relationship between one or more of the third signals and the fourth signal, wherein the fourth signal is used for measurement;

[0406] Minimum time interval requirement between one or more of the third signals and the fourth signal;

[0407] The number of times the third signal is sent;

[0408] The transmission time interval of the third signal.

[0409] In some embodiments, the second sending module 801 is further configured to send third indication information to the terminal, for instructing the terminal to perform PDCCH detection based on the second communication mode at the first PDCCH candidate position or at the PDCCH candidate position corresponding to the first target.

[0410] In some embodiments, the second sending module 801 is further configured to send to the terminal the duration of the PDCCH detection method based on the second communication mode or the triggering condition for the change of the PDCCH detection method based on the second communication mode.

[0411] In some embodiments, the second sending module 801 is further configured to send second configuration information to the terminal, the second configuration information including configuration information related to the second operation during the activation period of the second communication mode.

[0412] In some embodiments, the second configuration information includes at least one of the following:

[0413] Activation period duration or duration;

[0414] CSI reports configuration information, including at least one of the following: CSI reported information, CSI reported resource information;

[0415] CSI-RS configuration information, including at least one of the following: CSI-RS resource configuration information, CSI-RS;

[0416] SRS configuration information includes at least one of the following: SRS resource configuration information, SRS signal configuration information, and SRS transmit power.

[0417] In some embodiments, the apparatus further includes a second processing module for configuring the CSI reporting information type;

[0418] The first signal is also used to indicate at least one of the CSI reporting information types configured by the network-side device during the activation period of the second communication mode.

[0419] In some embodiments, the activation period is the DRX activation period or the network configuration activation period.

[0420] The communication device provided in this application embodiment can achieve... Figure 6 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0421] like Figure 9 As shown in the illustration, this application also provides a communication device 900, including a processor 901 and a memory 902. The memory 902 stores programs or instructions that can run on the processor 901. For example, when the communication device 900 is a terminal, the program or instructions executed by the processor 901 implement the various steps of the above-described communication method embodiments and achieve the same technical effect. When the communication device 900 is a network-side device, the program or instructions executed by the processor 901 implement the various steps of the above-described communication method embodiments and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0422] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 3The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 7 The communication device shown. Specifically, Figure 10 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0423] The terminal 1000 includes, but is not limited to, at least some of the following components: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0424] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1010 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 10 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0425] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processor 10041 and a microphone 0042. The graphics processor 10041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0426] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network-side device. Typically, the radio frequency unit 1001 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0427] The memory 1009 can be used to store software programs or instructions, as well as various data. The memory 1009 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1009 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0428] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into the processor 1010.

[0429] The radio frequency unit 1001 is used to receive a first signal based on a first communication mode, wherein the first signal includes any one of the following information:

[0430] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0431] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, and sounding reference signal (SRS) transmission;

[0432] The processor 1010 is configured to perform a first operation, the first operation including: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing the second operation during the activation period of the second communication mode;

[0433] The energy consumption in the first communication mode is lower than that in the second communication mode.

[0434] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the foregoing communication method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0435] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 6 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0436] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 8 The communication device shown. (For example) Figure 11 As shown, the network-side device 1100 includes: an antenna 1101, a radio frequency (RF) device 1102, a baseband device 1103, a processor 1104, and a memory 1105. The antenna 1101 is connected to the RF device 1102. In the uplink direction, the RF device 1102 receives information through the antenna 1101 and transmits the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information to be transmitted and sends it to the RF device 1102. The RF device 1102 processes the received information and transmits it through the antenna 1101.

[0437] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1103, which includes a baseband processor.

[0438] The baseband device 1103 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 11As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1105 via a bus interface to call the program or instructions in the memory 1105 to execute the network-side device operation shown in the above method embodiment.

[0439] The network-side device may also include a network interface 1106, such as a Common Public Radio Interface (CPRI).

[0440] The radio frequency device 1102 is used to send a first signal to the terminal, the first signal including any one of the following information:

[0441] The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode;

[0442] The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

[0443] Furthermore, the network-side device 1100 in this embodiment of the application also includes: a program or instructions stored in memory 1105 and executable on processor 1104, wherein processor 1104 calls the program or instructions in memory 1105 to execute. Figure 8 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0444] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described communication method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0445] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0446] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described communication method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0447] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0448] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described communication method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0449] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the communication method described above, and the network-side device can be used to perform the steps of the communication method described above.

[0450] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0451] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), and the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0452] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A communication method, characterized in that, include: The terminal receives a first signal based on a first communication mode, the first signal including any one of the following information: The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode; The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, and sounding reference signal (SRS) transmission; The terminal performs a first operation, which includes: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode; The energy consumption in the first communication mode is lower than that in the second communication mode.

2. The method according to claim 1, characterized in that, The first auxiliary information includes at least one of the following: The aggregation level of one or more PDCCH candidate positions; The aggregation level of the lowest PDCCH candidate position; The downlink control information to be detected is the DCI type, DCI format, or DCI format group. DCI load size; Carrier index to be detected; The control resource set CORESET index or sub-control resource set index that needs to be detected; The search space index or search space set group index that needs to be detected; downlink reception frequency domain cell index; PDCCH demodulation reference signal port; The quasi-co-location QCL or transmission configuration indication status of the PDCCH; Number of PDCCH repetitions; PDCCH repeats the corresponding frequency hopping configuration information; The received search space indexes or PDCCH candidate indexes need to be merged; PDCCH or CORESET rate matching information; Start Control Channel Element (CCE) Index; CORESET pool index; CORESET includes the location indication of DCI; An indication of when to listen to one or more search spaces over a period of time.

3. The method according to claim 1 or 2, characterized in that, The effective duration of the first auxiliary information is configured via the network and / or indicated by the first signal.

4. The method according to any one of claims 1-3, characterized in that, Before the terminal receives the first signal based on the first communication mode, the method further includes: The terminal receives a second signal through the first communication mode, and the second signal is used to instruct the terminal to perform PDCCH detection based on the second communication mode.

5. The method according to any one of claims 1-3, characterized in that, The first signal also includes second indication information, which is used to instruct the terminal to perform PDCCH detection based on the second communication mode.

6. The method according to claim 4, characterized in that, The second signal includes at least one of the following: The first signal indication field is used to indicate whether a first signal is present. Timing information between the second signal and the first signal.

7. The method according to claim 6, characterized in that, When the terminal receives configuration information of the first signal, the second signal contains the indication field of the first signal.

8. The method according to claim 4, 6, or 7, characterized in that, The second signal includes an indication to send a third signal, which is used to provide feedback on signal quality information.

9. The method according to claim 5, characterized in that, The first signal includes an indication to send a third signal, which is used to provide feedback on signal quality information.

10. The method according to claim 8 or 9, characterized in that, The method further includes: The terminal receives first configuration information, which is used to instruct the transmission of the third signal; The terminal sends the third signal based on the first configuration information and the first communication mode.

11. The method according to claim 10, characterized in that, The first configuration information includes at least one of the following: One or more signal quality thresholds; Multiple measurement intervals; Configuration information of the third signal; The timing relationship between one or more of the third signals and the first signal; The third signal transmission time window information is determined based on the reception time of the first signal; The timing relationship between one or more of the third signals and the second signal; The third signal transmission time window information is determined based on the reception time of the second signal; A timing relationship between one or more of the third signals and the fourth signal, wherein the fourth signal is used for measurement; Minimum time interval requirement between one or more of the third signals and the fourth signal; The number of times the third signal is sent; The transmission time interval of the third signal.

12. The method according to any one of claims 1-11, characterized in that, During the effective time of the first signal, the terminal performs PDCCH detection based on the second communication mode according to the first auxiliary information.

13. The method according to any one of claims 1-11, characterized in that, If the first signal takes effect after PDCCH detection is initiated based on the second communication mode, the terminal performs PDCCH detection at all PDCCH candidate positions or at the PDCCH candidate position corresponding to the first target before the first signal takes effect, wherein the first target is configured by the network or predefined by the protocol.

14. The method according to any one of claims 1-11, characterized in that, If the terminal does not receive the first signal, the PDCCH detection method of the terminal based on the second communication mode is as follows: detection is performed at the PDCCH candidate position corresponding to the first target, or detection is performed based on the first PDCCH candidate position configured by the network, wherein the first target is configured by the network or predefined by the protocol.

15. The method according to claim 14, characterized in that, The duration of the PDCCH detection method of the terminal based on the second communication mode is configured by the network, or the triggering condition for the change of the PDCCH detection method of the terminal based on the second communication mode is configured by the network.

16. The method according to any one of claims 1-15, characterized in that, The method further includes: the terminal receiving second configuration information, the second configuration information including configuration information related to the second operation during the activation period of the second communication mode.

17. The method according to claim 16, characterized in that, The second configuration information includes at least one of the following: Activation period duration or duration; CSI reports configuration information, including at least one of the following: CSI reported information, CSI reported resource information; CSI-RS configuration information, including at least one of the following: CSI-RS resource configuration information, CSI-RS; SRS configuration information includes at least one of the following: SRS resource configuration information, SRS signal configuration information, and SRS transmit power.

18. The method according to claim 1, 16, or 17, characterized in that, The first signal is also used to indicate at least one of the CSI reporting information types configured in the network during the activation period of the second communication mode.

19. The method according to any one of claims 1-18, characterized in that, The terminal does not perform a third operation when performing the second operation.

20. A communication method, characterized in that, include: The network-side device sends a first signal to the terminal, the first signal including any one of the following: The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode; The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

21. The method according to claim 20, characterized in that, The first auxiliary information includes at least one of the following: The aggregation level of one or more PDCCH candidate positions; The aggregation level of the lowest PDCCH candidate position; The downlink control information to be detected is the DCI type, DCI format, or DCI format group. DCI load size; Carrier index to be detected; The control resource set CORESET index or sub-control resource set index that needs to be detected; The search space index or search space set group index that needs to be detected; downlink reception frequency domain cell index; PDCCH demodulation reference signal port; The quasi-co-location QCL or transmission configuration indication status of the PDCCH; Number of PDCCH repetitions; PDCCH repeats the corresponding frequency hopping configuration information; The received search space indexes or PDCCH candidate indexes need to be merged; PDCCH or CORESET rate matching information; Start Control Channel Element (CCE) Index; CORESET pool index; CORESET includes the location indication of DCI; An indication of when to listen to one or more search spaces over a period of time.

22. The method according to claim 20 or 21, characterized in that, The validity period of the first auxiliary information is configured by the network-side device and / or indicated by the first signal.

23. The method according to any one of claims 20-22, characterized in that, Before the network-side device sends the first signal to the terminal, the method further includes: A second signal is sent to the terminal, the second signal being used to instruct the terminal to perform PDCCH detection based on a second communication mode.

24. The method according to any one of claims 20-22, characterized in that, The first signal also includes second indication information, which is used to instruct the terminal to perform PDCCH detection based on the second communication mode.

25. The method according to claim 23, characterized in that, The second signal includes at least one of the following: The first signal indication field is used to indicate whether a first signal is present. Timing information between the second signal and the first signal.

26. The method according to claim 25, characterized in that, The method further includes: sending configuration information of the first signal to the terminal.

27. The method according to claim 23, 25 or 26, characterized in that, The second signal includes an indication to send a third signal, which is used to provide feedback on signal quality information.

28. The method according to claim 24, characterized in that, The first signal includes an indication to send a third signal, which is used to provide feedback on signal quality information.

29. The method according to claim 27 or 28, characterized in that, The method further includes: Send first configuration information to the terminal, the first configuration information being used to instruct the transmission of the third signal.

30. The method according to claim 29, characterized in that, The first configuration information includes at least one of the following: One or more signal quality thresholds; Multiple measurement intervals; Configuration information of the third signal; The timing relationship between one or more of the third signals and the first signal; The third signal transmission time window information is determined based on the reception time of the first signal; The timing relationship between one or more of the third signals and the second signal; The third signal transmission time window information is determined based on the reception time of the second signal; A timing relationship between one or more of the third signals and the fourth signal, wherein the fourth signal is used for measurement; Minimum time interval requirement between one or more of the third signals and the fourth signal; The number of times the third signal is sent; The transmission time interval of the third signal.

31. The method according to any one of claims 20-30, characterized in that, The method further includes: sending third indication information to the terminal to instruct the terminal to perform PDCCH detection based on a second communication mode at the first PDCCH candidate position or at the PDCCH candidate position corresponding to the first target.

32. The method according to claim 31, characterized in that, The method further includes: Send to the terminal the duration of the PDCCH detection method based on the second communication mode or the triggering condition for the change of the PDCCH detection method based on the second communication mode.

33. The method according to any one of claims 20-32, characterized in that, The method further includes: Send second configuration information to the terminal, the second configuration information including configuration information related to the second operation during the activation period of the second communication mode.

34. The method according to claim 33, characterized in that, The second configuration information includes at least one of the following: Activation period duration or duration; CSI reports configuration information, including at least one of the following: CSI reported information, CSI reported resource information; CSI-RS configuration information, including at least one of the following: CSI-RS resource configuration information, CSI-RS; SRS configuration information includes at least one of the following: SRS resource configuration information, SRS signal configuration information, and SRS transmit power.

35. The method according to claim 20, 33 or 34, characterized in that, The method further includes; The network-side device is configured with CSI reporting information types; The first signal is also used to indicate at least one of the CSI reporting information types configured by the network-side device during the activation period of the second communication mode.

36. A communication device, characterized in that, include A first receiving module is configured to receive a first signal based on a first communication mode, wherein the first signal includes any one of the following information: The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode; The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode, the second operation including at least one of the following: channel state information (CSI) measurement and feedback, and sounding reference signal (SRS) transmission; A first processing module is configured to perform a first operation, the first operation including: performing PDCCH detection based on a second communication mode according to the first auxiliary information, or performing a second operation during the activation period of the second communication mode; The energy consumption in the first communication mode is lower than that in the second communication mode.

37. The apparatus according to claim 36, characterized in that, The first auxiliary information includes at least one of the following: The aggregation level of one or more PDCCH candidate positions; The aggregation level of the lowest PDCCH candidate position; The downlink control information to be detected is the DCI type, DCI format, or DCI format group. DCI load size; Carrier index to be detected; The control resource set CORESET index or sub-control resource set index that needs to be detected; The search space index or search space set group index that needs to be detected; downlink reception frequency domain cell index; PDCCH demodulation reference signal port; The quasi-co-location QCL or transmission configuration indication status of the PDCCH; Number of PDCCH repetitions; PDCCH repeats the corresponding frequency hopping configuration information; The received search space indexes or PDCCH candidate indexes need to be merged; PDCCH or CORESET rate matching information; Start Control Channel Element (CCE) Index; CORESET pool index; CORESET includes the location indication of DCI; An indication of when to listen to one or more search spaces over a period of time.

38. The apparatus according to any one of claims 36-37, characterized in that, The first receiving module is also used for: The terminal receives a second signal through the first communication mode, and the second signal is used to instruct the terminal to perform PDCCH detection based on the second communication mode.

39. The apparatus according to any one of claims 36-37, characterized in that, The first signal also includes second indication information, which is used to instruct the terminal to perform PDCCH detection based on the second communication mode.

40. The apparatus according to claim 38, characterized in that, The second signal includes an indication to send a third signal, which is used to provide feedback on signal quality information.

41. The apparatus according to claim 39, characterized in that, The first signal includes an indication to send a third signal, which is used to provide feedback on signal quality information.

42. The apparatus according to claim 40 or 41, characterized in that, The first receiving module is further configured to: receive first configuration information, wherein the first configuration information is used to instruct the transmission of the third signal; The device further includes a first transmitting module, configured to transmit the third signal based on the first configuration information and the first communication mode.

43. The apparatus according to any one of claims 36-42, characterized in that, The first receiving module is further configured to receive second configuration information, which includes configuration information related to the second operation during the activation period of the second communication mode.

44. A communication device, comprising: The second transmitting module is used to transmit a first signal to the terminal, the first signal including any one of the following information: The first auxiliary information is the auxiliary information for the terminal to perform physical downlink control channel (PDCCH) detection based on the second communication mode; The first indication information is used to instruct the terminal to perform a second operation during the activation period of the second communication mode. The second operation includes at least one of the following: Channel State Information (CSI) measurement and feedback, and Sounding Reference Signal (SRS) transmission.

45. The apparatus according to claim 44, characterized in that, The first auxiliary information includes at least one of the following: The aggregation level of one or more PDCCH candidate positions; The aggregation level of the lowest PDCCH candidate position; The downlink control information to be detected is the DCI type, DCI format, or DCI format group. DCI load size; Carrier index to be detected; The control resource set CORESET index or sub-control resource set index that needs to be detected; The search space index or search space set group index that needs to be detected; downlink reception frequency domain cell index; PDCCH demodulation reference signal port; The quasi-co-location QCL or transmission configuration indication status of the PDCCH; Number of PDCCH repetitions; PDCCH repeats the corresponding frequency hopping configuration information; The received search space indexes or PDCCH candidate indexes need to be merged; PDCCH or CORESET rate matching information; Start Control Channel Element (CCE) Index; CORESET pool index; CORESET includes the location indication of DCI; An indication of when to listen to one or more search spaces over a period of time.

46. ​​A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the communication method as described in any one of claims 1 to 19.

47. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the communication method as described in any one of claims 20 to 35.

48. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the communication method as described in any one of claims 1 to 19, or implement the steps of the communication method as described in any one of claims 20 to 35.

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