Communication method and communication device

Abstract

The application provides a communication method and a communication device. The method comprises: determining, by a terminal device, whether a first control information is missed according to a first timer, the first control information being used for instructing the terminal device to perform BWP switching.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a communication method and communication device. Background Technology

[0002] In a communication system, network devices can configure multiple bandwidth parts (BWPs) for terminal devices and instruct them to switch BWPs based on first control information. In some cases, the terminal device may miss the first control information. Summary of the Invention

[0003] This application provides a communication method and a communication device. The various aspects covered by this application are described below.

[0004] In a first aspect, a communication method is provided, comprising: a terminal device determining whether first control information has been missed based on a first timer, wherein the first control information is used to instruct the terminal device to perform a BWP switch.

[0005] In a second aspect, a communication method is provided, comprising: a network device sending first control information to a terminal device, the first control information being used to instruct the terminal device to perform a BWP handover.

[0006] Thirdly, a communication device is provided, which is a terminal device, including: a first determining module, configured to determine whether first control information is missed based on a first timer, wherein the first control information is used to instruct the terminal device to perform BWP switching.

[0007] Fourthly, a communication device is provided, which is a network device, comprising: a first transmitting module, configured to transmit first control information to a terminal device, the first control information being used to instruct the terminal device to perform BWP switching.

[0008] Fifthly, a communication device is provided, including a transceiver, a memory, and a processor. The memory is used to store a program, and the processor is used to call the program in the memory and receive or send information through the transceiver, so that the terminal device executes the method of the first aspect.

[0009] In a sixth aspect, a communication device is provided, including a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to call the program in the memory, and to receive or send information through the transceiver, causing the network device to perform the method as described in the second aspect.

[0010] A seventh aspect provides an apparatus including a processor for calling a program from a memory, causing the apparatus to perform a method as described in any one of the first to second aspects.

[0011] Eighth aspect, a chip is provided, including a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method of any one of the first to second aspects.

[0012] Ninth aspect, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method described in any one of the first to second aspects.

[0013] A tenth aspect provides a computer program product, including a program that causes a computer to perform the method as described in any one of the first to second aspects.

[0014] Eleventh aspect, a computer program is provided that causes a computer to perform the method as described in any one of the first to second aspects.

[0015] In related technologies, terminal devices cannot determine whether the first control information has been missed, which may cause the terminal devices to be unable to quickly receive subsequent transmitted control information, thereby affecting communication quality.

[0016] In this embodiment, the terminal device can determine whether the first control information has been missed based on a first timer. This allows the terminal device to respond quickly (e.g., re-receive the first control information) when it determines that the first control information has been missed, reducing latency and energy consumption caused by the missed information and improving the communication quality of the terminal device. Attached Figure Description

[0017] Figure 1 This is a system architecture diagram of a communication system applicable to embodiments of this application.

[0018] Figure 2 This is a flowchart illustrating a communication method provided in an embodiment of this application.

[0019] Figure 3a This is a schematic diagram of the first public listening opportunity provided in an embodiment of this application.

[0020] Figure 3b This is a schematic diagram of the first public listening opportunity provided in another embodiment of this application.

[0021] Figure 4 This is a flowchart illustrating a communication method provided in another embodiment of this application.

[0022] Figure 5 This is a flowchart illustrating a communication method provided in another embodiment of this application.

[0023] Figure 6 This is a schematic diagram of a communication device provided in an embodiment of this application.

[0024] Figure 7 This is a schematic diagram of a communication device provided in another embodiment of this application.

[0025] Figure 8 This is a schematic diagram of the device provided in the embodiments of this application. Detailed Implementation

[0026] The embodiments of this application can be applied to various communication systems. For example, the embodiments of this application can be applied to Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A), New Radio (NR), evolution systems of NR, LTE-based access to unlicensed spectrum (LTE-U), NR-based access to unlicensed spectrum (NR-U), Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), and 5th-generation (5G) systems. The embodiments of this application can also be applied to other communication systems, such as future communication systems. This future communication system could be, for example, a sixth-generation mobile communication system or a satellite communication system.

[0027] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can now support not only traditional cellular communication but also one or more other types of communication. For example, a communication system can support one or more of the following communication methods: device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, and vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to communication systems that support the above-mentioned communication methods.

[0028] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0029] The communication system in this application embodiment can be applied to unlicensed spectrum. This unlicensed spectrum can also be considered a shared spectrum. Alternatively, the communication system in this application embodiment can also be applied to licensed spectrum. This licensed spectrum can also be considered a dedicated spectrum.

[0030] The embodiments of this application can be applied to terrestrial networks (TN) systems as well as non-terrestrial networks (NTN) systems. As an example, the NTN system can include an NR-based NTN system and an Internet of Things (IoT)-based NTN system.

[0031] A communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of this application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.

[0032] In some embodiments, the terminal device may be a station (ST) in a WLAN. In some embodiments, the terminal device may also be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a next-generation communication system (e.g., NR system), or terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0033] In some embodiments, the terminal device may be a device that provides voice and / or data connectivity to the user. For example, the terminal device may be a handheld device, an in-vehicle device, etc., with wireless connectivity. As some specific examples, the terminal device may be a mobile phone, tablet, laptop, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.

[0034] In some embodiments, the terminal device may be deployed on land. For example, the terminal device may be deployed indoors or outdoors. In some embodiments, the terminal device may be deployed on water, such as on a ship. In some embodiments, the terminal device may be deployed in the air, such as on an airplane, balloon, or satellite.

[0035] In addition to terminal devices, the communication system may also include one or more network devices. In this embodiment, the network device can be a device for communicating with the terminal device; this network device may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. In this embodiment, the network device may refer to an access network (RAN) node (or device) that connects the terminal device to the wireless network. Access network equipment can broadly encompass various names listed below, or be interchangeable with them, such as: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, auxiliary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. Base stations can be macro base stations, micro base stations, relay nodes, donor nodes, or similar entities, or combinations thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, or a device that performs base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device performing base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0036] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0037] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0038] By way of example and not limitation, in the embodiments of this application, the network device may have mobility characteristics; for example, the network device may be a mobile device. In some embodiments of this application, the network device may be satellite-based or space-based, that is, the network device is installed on a satellite or flying equipment. In some embodiments of this application, the network device may also be a base station installed in locations such as land or water.

[0039] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0040] For example, Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. Figure 1 As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0041] Figure 1 An exemplary diagram shows a network device and two terminal devices. In some embodiments of this application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit the scope of the embodiments.

[0042] In some embodiments of this application, Figure 1 The wireless communication system shown may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but this application does not limit this.

[0043] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 can be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities. This application embodiment does not limit this. The following will first introduce some concepts involved in this application. It should be understood that the following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, and they all fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0044] In current communication systems, terminal devices have the ability to operate on bandwidths smaller than the system bandwidth; this capability can also be called the terminal device's bandwidth adaptation capability. To fully utilize the terminal device's bandwidth adaptation capability, related technologies have proposed the concept of BWP (Bandwidth Adaptation) to support terminal devices operating on multiple bandwidths.

[0045] The BWP (Bandwidth, Load Balancing) mechanism in communication systems offers numerous benefits. For example, control information typically involves a smaller data volume, while downlink data reception is much larger. The bandwidth required for terminal devices to listen for control information is often less than the bandwidth for transmitting data. Since terminal devices spend most of their time listening for control information and occasionally receiving downlink data, consistently operating on a single bandwidth would lead to excessive power consumption due to prolonged use of a larger, unnecessary bandwidth. To address this, the BWP mechanism allows terminal devices to switch between different BWPs. When downlink data reception is not required, the device can switch to a smaller bandwidth for control information listening; conversely, when downlink data reception is needed, it can switch to a larger bandwidth for high-speed data transmission. This approach saves energy spent listening for control information and achieves load balancing within the system bandwidth, improving the spectrum utilization efficiency of the communication system.

[0046] In related technologies, network devices can configure multiple supported BWPs (e.g., up to four) for terminal devices. Furthermore, the center frequencies of these multiple BWPs do not necessarily overlap. Additionally, the network device can select one of these BWPs as the default downlink BWP for the terminal device. Of course, the network device can also choose not to configure a default downlink BWP for the terminal device.

[0047] In the default downlink BWP, the terminal device can listen to common cell scheduling information in the common control resource set (CORESET), such as control information for scheduling broadcast information (e.g., master information block (MIB) and system information block (SIB) resources), and resource scheduling configured in the initial radio resource control (RRC). In other BWPs, the terminal device can listen to downlink control information dedicated to its own scheduling in its own CORESET. If the network device has not configured a default downlink BWP for the terminal device, the resource scheduling of the above-mentioned information is scheduled by the downlink control information (DCI) carried in the common CORESET of the initial downlink BWP in which the terminal device operates.

[0048] It should be understood that the CORESET configured in BWP is a set of resources for transmitting the physical downlink control channel (PDCCH), and the terminal device listens to the DCI in the configured CORESET.

[0049] As mentioned above, terminal devices can switch between multiple BWPs. In related technologies, network devices use DCI (Digital Interface Code) to instruct terminal devices to complete BWP switching operations. For example, the BWP ID that the terminal device is using can be indicated by indication information in the DCI (such as a bandwidth part indicator), where the BWP ID can be configured by the network device via RRC (Redirect Resource Control). When the BWP ID indicated by the above indication information is not the BWP currently used by the terminal device, the terminal device will switch to the indicated BWP.

[0050] In some cases, the terminal device may miss the DCI used to indicate a BWP handover. If the terminal device misses the DCI indicating a BWP handover, it will remain in the currently active BWP, while the network device will assume that the terminal device has switched to the new BWP and will transmit the DCI in the new BWP to schedule the terminal device. However, since the terminal device is not operating in the new BWP, it will not be able to receive subsequent transmitted DCI information.

[0051] In a communication system, if a terminal device does not receive a DCI for an extended period, it will switch to the default downlink BWP based on the cell-level BWP inactivity timer and listen for its own DCI. The BWP inactivity timer starts upon receiving a DCI and resets upon receiving the next one. If the network device has not configured a default downlink BWP for the terminal device, it will listen for its own DCI on the initial downlink BWP. In this case, if the new BWP indicated by the DCI is not the default downlink BWP (or the initial downlink BWP), the terminal device will be unable to listen for subsequent DCI transmissions for an extended period, potentially leading to synchronization issues or causing the terminal device to perform a random access procedure, resulting in handover failure. If the new BWP indicated by the DCI is the default downlink BWP (or the initial downlink BWP), the terminal device may listen for subsequent DCI transmissions when switching to the default downlink BWP based on the cell-level BWP inactivity timer in related technologies. However, due to the long duration of the BWP inactivity timer, this will result in a longer handover delay and may even lead to synchronization issues.

[0052] As mentioned above, in the current BWP handover mechanism, the terminal device cannot determine whether the DCI (hereinafter referred to as the first control information) used for BWP handover has been missed. This may cause the terminal device to be unable to quickly receive the control information transmitted subsequently, thereby affecting the communication quality.

[0053] To address the aforementioned issues, in this embodiment, the terminal device can determine whether the first control information has been missed based on a first timer. This allows the terminal device to respond quickly (e.g., re-receive the first control information) when it determines that the first control information has been missed, reducing latency and energy consumption caused by the missed information and improving the communication quality of the terminal device.

[0054] The embodiments of this application will be described in detail below.

[0055] Figure 2 This is a flowchart illustrating a communication method provided in an embodiment of this application.

[0056] See Figure 2 In step S210, the terminal device determines whether the first control information has been missed based on the first timer.

[0057] In a communication system, network devices can configure multiple BWPs for terminal devices, such as 3 or 4 BWPs.

[0058] The aforementioned first control information is used to instruct the terminal device to perform BWP switching; in other words, the first control information can be a DCI used for BWP switching. In some implementations, the first control information may include indication information (such as a bandwidth part indicator) to indicate the identification information of the BWP that the terminal device is currently using. If the identification information of the BWP indicated by the first control information is different from the identification information of the BWP that the terminal device is currently using, then the BWP indicated by the first control information is the newly activated BWP.

[0059] Unlike related technologies that cannot determine whether the first control information has been missed, as shown in step S210, the embodiments of this application can determine whether the first control information has been missed based on the first timer.

[0060] In some implementations, the terminal device can determine that the network device is about to send the first control information based on the activation information of the first timer.

[0061] In some implementations, step S210 may include: in response to a first timer timeout, the terminal device determines that the first control information has been missed. After the first timer is started, the terminal device may listen for the first control information in the currently operating BWP; if no first control information is received within the duration of the first timer, the terminal device determines that the first control information has been missed. Alternatively, if the first control information is received within the duration of the first timer, the terminal device switches from the currently operating BWP to a new BWP according to the instruction of the first control information.

[0062] If the terminal device determines that the first control information has been missed, in some implementations, the terminal device may perform one or more of the following operations:

[0063] Operation 1: The terminal device sends a first signaling message to the network device. The first signaling message is used to indicate that the terminal device has missed detecting the first control information.

[0064] Operation 2: The terminal device listens for the second control information on the first BWP.

[0065] By executing Operation 1, the terminal device can quickly feed back the situation of missed first control information to the network device, enabling the network device to respond quickly and further schedule the terminal device.

[0066] The resources for the first signaling can be configured by the network device or predefined by the protocol; this application embodiment does not specifically limit this. In some implementations, the resources for the first signaling can be configured by the network device through first higher-layer signaling. For example, the resources for the first signaling can be pre-configured by the network device in RRC signaling.

[0067] The resource-related information of the first signaling may include time-domain resources and / or frequency-domain resources. In some implementations, the resource-related information of the first signaling may include one or more of the following:

[0068] Information related to time-domain resources: the start or start offset of the time-domain resource, the duration of the time-domain resource, the end or end offset of the time-domain resource, period, etc.

[0069] Information related to frequency domain resources: bandwidth size, start position of frequency domain resources, end position of frequency domain resources, guard band size, frequency offset, center frequency, etc.

[0070] In operation two, the terminal device listens for the second control information on the first BWP. That is, after determining that the first control information has been missed, or after the first timer expires, the terminal device can continue listening for the second control information on the first BWP. Correspondingly, after determining that the terminal device has missed the first control information, the network device can send the second control information on the first BWP.

[0071] The second control information can be the same as the first control information, meaning the second control information is also used to instruct the terminal device to perform BWP handover. Alternatively, the second control information can be different from the first control information, meaning the second control information is not used to instruct the terminal device to perform BWP handover. For example, the second control information can instruct the terminal device on uplink and downlink scheduling information on the currently working BWP (or a newly activated BWP).

[0072] In some implementations, the first BWP in Operation Two can be the BWP currently being used by the terminal device. That is, after determining that the first control information has been missed, the terminal device can choose not to switch BWPs (e.g., switch to the default downlink BWP) but instead continue listening for subsequent second control information sent by the network device on its currently used BWP. In this way, when both the terminal device and the network device confirm that the first downlink control information has been missed, they will quickly rebuild the connection on the terminal device's currently used BWP based on a pre-agreed consensus, thereby effectively reducing the risk of the terminal device and network device losing synchronization.

[0073] For example, after determining that the first control information has been missed, the terminal device can send a first signaling message to the network device and continue to listen for the second control information on the currently operating BWP; correspondingly, after receiving the first signaling message, the network device can send the second control information to the terminal device on the currently operating BWP.

[0074] Alternatively, in some implementations, the first BWP in Operation 2 can be any one of one or more BWPs configured by the network device for the terminal device. That is, after determining that the first control information has been missed, the terminal device can listen for subsequent second control information sent by the network device on each of its assigned BWPs. In this way, on the one hand, the terminal device does not need to inform the network device of the missed first control information via signaling, thus saving signaling overhead; on the other hand, the terminal device can quickly obtain the second control information on one of the one or more BWPs assigned by the network device to rebuild the connection, thereby effectively reducing the risk of the terminal device and network device losing synchronization.

[0075] There are several ways for a terminal device to listen for the second control information on the first BWP. In some implementations, the terminal device can listen for the second control information based on a first control resource set in the first BWP; and / or, the terminal device can listen for the second control information based on a first common listening opportunity associated with the first BWP.

[0076] It should be understood that the first control resource set can be a common control resource set on the first BWP. Alternatively, the first control resource set can be a proprietary control resource set for the terminal device on the first BWP. The first BWP is any one of one or more BWPs configured for the terminal device; that is, a common control resource set or a proprietary control resource set can be configured on each BWP assigned to the terminal device to listen for the second control information.

[0077] Furthermore, in some implementations, the first control resource set can be associated with the first common listening time. In other words, the first common listening time can be a listening time configured within the first control resource set. In other implementations, the first control resource set may not be associated with the first common listening time. In other words, the first common listening time may not be a listening time configured within the first control resource set, and the first common listening time and the first control resource set can be independent of each other.

[0078] The following are examples of several monitoring methods provided in the embodiments of this application.

[0079] Monitoring Method 1: The terminal device monitors the second control information in the common control resource set.

[0080] In this monitoring method, the common control resource set is configured separately in each BWP allocated to the terminal device, that is, each BWP has its own common control resource set.

[0081] Monitoring Method 2: The terminal device monitors the second control information in a dedicated control resource set.

[0082] In this monitoring method, the dedicated control resource set is configured separately in each BWP allocated to the terminal device; that is, each BWP has its own dedicated control resource set. The dedicated control resource set can refer to the control resource set on the dedicated BWP of the terminal device as defined in related technologies.

[0083] In this monitoring method, a dedicated control resource set can be associated with a first common monitoring time. That is, the first BWP is configured with a first common monitoring time and / or a monitoring time dedicated to the terminal device. The first common monitoring time can be configured in the dedicated control resource set.

[0084] The first common listening opportunity can be a subset of listening opportunities within a proprietary BWP control resource set on the terminal device. For example, the proprietary control resource set may contain both the first common listening opportunity and proprietary listening opportunities. Alternatively, the proprietary control resource set may only contain proprietary listening opportunities.

[0085] In some implementations, the first public listening opportunity can correspond to a portion of resources in a dedicated control resource set.

[0086] Furthermore, in some implementations, the first common listening opportunity can correspond to a portion of the frequency domain resources within a dedicated control resource set. Figure 3a For example, the first public listening opportunity can be a listening opportunity in a portion of the frequency domain of a dedicated control resource.

[0087] This application does not specifically limit the configuration method of the frequency domain resources corresponding to the first common listening time. In some implementations, the frequency domain resources corresponding to the first common listening time can be indicated based on a bitmap. Several examples of configuring the frequency domain resources corresponding to the first common listening time are given below.

[0088] For example, a bitmap can be used to indicate the frequency domain resources corresponding to the first common listening opportunity, and the frequency domain resources indicated by the bitmap correspond to the frequency domain resources of the BWP. The number of bits contained in the bitmap can be predefined by the protocol and / or configured by the network-side device. Furthermore, each bit in the bitmap can correspond to a frequency domain resource unit, and the size of each frequency domain resource unit can be N physical resource blocks (RBs), where N is a positive integer. For example, each frequency domain resource unit can be 2 RBs, 3 RBs, or 6 RBs. The value of N can be a predefined value by the protocol or a value configured by the network-side device.

[0089] For example, a bitmap can be used to indicate the frequency domain location of the dedicated control resource set corresponding to the first public listening opportunity, and the frequency domain resources indicated by the bitmap correspond to the frequency domain resources of the BWP. The number of bits contained in the bitmap can be predefined by the protocol and / or configured by the network-side device. Furthermore, each bit in the bitmap can correspond to a frequency domain resource unit, and the size of each frequency domain resource unit can be N physical resource blocks, where N is a positive integer. For example, each frequency domain resource unit can be 2 RBs, 3 RBs, or 6 RBs. The value of N can be predefined by the protocol or configured by the network-side device.

[0090] For example, the offset of the lowest point of the frequency domain resource corresponding to the first common listening opportunity from the lowest point of the frequency domain of the dedicated control resource set, as well as the size of the frequency domain resource corresponding to the first common listening opportunity, can be configured. Specifically, the offset of the lowest point of the frequency domain of the first common listening opportunity can be the number of RBs offset, and the size of the frequency domain resource of the first common listening opportunity can be the number of RBs occupied.

[0091] For example, the offset of the highest point in the frequency domain of the frequency domain resource corresponding to the first common listening opportunity from the highest point in the frequency domain of the dedicated control resource set, as well as the size of the frequency domain resource corresponding to the first common listening opportunity, can be configured. Specifically, the offset of the highest point in the frequency domain of the first common listening opportunity can be the number of RBs offset, and the size of the frequency domain resource of the first common listening opportunity can be the number of RBs occupied.

[0092] In other implementations, the first common listening opportunity may correspond to a portion of the temporal resources in a search space set associated with a dedicated control resource set. Figure 3b For example, the first common listening opportunity can be a portion of the continuous listening duration (e.g., in time slots) within the search space set. Below are some examples of configuring the time-domain resources corresponding to the first common listening opportunity.

[0093] For example, the first public listening opportunity can be configured using a search space configuration method found in related technologies. Exemplarily, the listening period and offset, the duration of continuous listening, and the starting symbol for listening within a slot can be configured for the first public listening opportunity.

[0094] For example, the time domain location of the first common listening opportunity in a dedicated control resource set can be configured through signaling (such as RRC signaling), which is a portion of the time domain resources in the search space, such as the start position of the time slot in the search space within a period and the duration of continuous listening.

[0095] Monitoring Method 3: The terminal device monitors the second control information during the first common monitoring period (independent of the first control resource set).

[0096] In this monitoring method, the first common monitoring timing may or may not coincide with the monitoring timing determined by the first control resource set and the search space set. In some implementations, if the first common monitoring timing coincides with the monitoring timing determined by the first control resource set and the search space set, the overlapping portion may be the first common monitoring time.

[0097] In some implementations, the frequency domain resources corresponding to the first common listening opportunity can be indicated using a bitmap. For example, the frequency domain resources corresponding to the first common listening opportunity can be indicated using a bitmap, and the frequency domain resources indicated by the bitmap correspond to the frequency domain resources of the BWP. The number of bits contained in the bitmap can be predefined by the protocol and / or configured by the network-side device. Furthermore, each bit in the bitmap can correspond to a frequency domain resource unit, where the size of each frequency domain resource unit can be N physical resource blocks (RBs), where N is a positive integer. For example, each frequency domain resource unit can be 2 RBs, 3 RBs, or 6 RBs. The value of N can be predefined by the protocol or configured by the network-side device.

[0098] In other implementations, the time-domain resources for the first common listening opportunity can be configured via signaling (such as RRC signaling). For example, the first common listening opportunity can be configured using a search space configuration method found in related technologies. Exemplarily, the listening period and offset, the duration of continuous listening, and the starting symbol for listening within the slot can be configured for the first common listening opportunity.

[0099] It should be understood that the resources corresponding to the first public listening opportunity can be configured by the network device or predefined by the protocol; this application embodiment does not specifically limit this. In some implementations, the resources corresponding to the first public listening opportunity can be configured by the network device through the first higher-layer signaling. For example, the resources corresponding to the first public listening opportunity can be configured by the network device in RRC signaling.

[0100] The foregoing section details various monitoring methods according to embodiments of this application. As described above, the terminal device can monitor the second control information on a common control resource set or a first common monitoring time (including independent common monitoring times and common monitoring times within a dedicated control resource set). Since the common control resource set and the first common monitoring time occupy relatively little bandwidth, this can save energy consumption of the terminal device during the monitoring process.

[0101] The following describes how to configure the first control resource set and the first common listening time.

[0102] In some implementations, the configuration information of the first control resource set may include one or more of the following: control resource set ID, frequency domain resources, duration, control channel element (CCE) and resource element group (REG) mapping type, precoding frequency domain granularity, transmission configuration indicator (TCI) related information, pilot related information, resource block (RB) offset, and control resource set pool index.

[0103] In some implementations, the configuration information of the first control resource set can be determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

[0104] Taking the first control resource set as a public control resource set as an example, the relevant configuration information can be configured in the following three ways.

[0105] Configuration Method 1: Cell-level configuration information

[0106] In this configuration method, the configuration information of the common control resource set can be configured in the cell configuration, and the common control resource set in the first BWP all adopt the configuration information in the cell configuration. That is, the relevant configurations of the common control resource set in each BWP are configured in the cell, and each BWP uses the same configuration information. Through this configuration method, the common control resource set in each BWP can use the same set of configuration parameters, eliminating the need for separate configurations and saving signaling overhead associated with related configurations.

[0107] Configuration Method 2: Cell-level configuration information and the first BWP's proprietary configuration information

[0108] In this configuration method, some configuration information of the common control resource set can be configured within the cell, meaning that some configuration information is common configuration information configured within the cell. Another part of the configuration information of the common control resource set is configured in each BWP, meaning that the other part of the relevant configuration information is configured separately in the BWP configuration.

[0109] For example, the duration of the common control resource set, CCE and REG mapping types, TCI-related information, etc. can be configured in the cell configuration; other configuration information about the common control resource set is indicated in the BWP configuration.

[0110] Configuration Method 3: Proprietary Configuration Information for the First BWP

[0111] In this configuration method, the configuration information of the common control resource set is configured separately for each BWP; that is, each BWP is configured with the relevant information of the common control resource set. This configuration method allows for flexible configuration of the common control resource set based on the channel conditions and service transmission requirements of each BWP.

[0112] Taking the first public listening opportunity as a public listening opportunity within a dedicated control resource set as an example, the relevant configuration information can be configured in the following two ways.

[0113] Configuration Method 1: Cell-level configuration information

[0114] In this configuration method, the first common listening opportunity can be configured in the cell configuration. That is, the common listening opportunity of this type is uniformly configured in the cell configuration, and the common listening opportunity on each BWP in the cell adopts this uniform configuration. With this configuration method, the common listening opportunity on each BWP can use the same set of configuration parameters, without the need for separate configuration, thus saving the signaling overhead of related configurations.

[0115] Configuration Method 2: Proprietary Configuration Information of the First BWP

[0116] In this configuration method, the first common listening time can be configured separately for each BWP, meaning each BWP is configured with information related to the first common listening time. This configuration method allows for flexible configuration of the first common listening time based on the channel conditions and service transmission status of each BWP.

[0117] Taking the first public listening time as an independent public listening time as an example, the relevant configuration information can be configured in the following two ways.

[0118] Configuration Method 1: Cell-level configuration information

[0119] In this configuration method, the first common listening opportunity can be configured in the cell configuration. That is, the common listening opportunity of this type is uniformly configured in the cell configuration, and the common listening opportunity on each BWP in the cell adopts this uniform configuration. With this configuration method, the common listening opportunity on each BWP can use the same set of configuration parameters, without the need for separate configuration, thus saving the signaling overhead of related configurations.

[0120] Configuration Method 2: Proprietary Configuration Information of the First BWP

[0121] In this configuration method, the first common listening time can be configured separately for each BWP, meaning each BWP is configured with information related to the first common listening time. This configuration method allows for flexible configuration of the first common listening time based on the channel conditions and service transmission status of each BWP.

[0122] The preceding text details how the terminal device can determine whether the first control information has been missed based on a first timer. This allows the terminal device to respond quickly (e.g., send a first command, receive second control information) when it determines that the first control information has been missed, reducing latency and energy consumption caused by the missed first control information and improving the communication quality of the terminal device. The first timer in the embodiments of this application will be described in detail below.

[0123] The first timer can be a newly designed timer or a timer that reuses a timer from related technologies (such as a cell-level BWP inactive timer). This application does not specifically limit this.

[0124] Embodiments of this application may provide various types of first timers. In some implementations, the first timer may include a timer dedicated to BWP switching and / or a BWP inactivity timer.

[0125] This application does not specifically limit the configuration method of the first timer in the embodiments. In some implementations, the first timer may include a dedicated timer of the BWP and / or a timer configured at the cell level.

[0126] It should be understood that the timer dedicated to BWP handover can also be called a timer dedicated to the first control information, that is, a timer dedicated to determining whether the first control information has been missed. A BWP-specific timer can refer to a timer configured exclusively for each BWP, meaning each BWP has a unique first timer configured for that specific BWP. A cell-level configured timer can refer to a timer configured identically for all BWPs within a cell. Several first timers provided in the embodiments of this application are given below as examples.

[0127] Type 1: The first timer can be a timer dedicated to BWP switching and is a proprietary timer of BWP.

[0128] Type 2: The first timer can be a timer dedicated to BWP handover and is a timer configured at the cell level.

[0129] Type 3: The first timer can be a BWP inactive timer and is a proprietary timer of the BWP.

[0130] Type 4: The first timer can be a BWP inactive timer and belongs to the timer configured at the cell level.

[0131] If a proprietary timer of BWP is used, such as a first timer of type 1 or type 2, the terminal device can determine in advance that the network device will send the first control information based on the activation information for the first timer sent by the network device, and further determine whether there is a corresponding indication of missed detection of the first control information.

[0132] If a timer of the BWP inactive timer is used, such as the first timer of type 3 or type 4, the network device can save signaling overhead by not having to send activation information for the first timer to the terminal device.

[0133] The duration of the first timer can also be referred to as the value of the first timer or the active time. In some implementations, the duration of the first timer can be less than or equal to the duration of the cell-level configured BWP inactive timer in related technologies. For example, the duration of the first timer can be less than the duration of the cell-level configured BWP inactive timer in related technologies.

[0134] In other implementations, the duration of the first timer can be related to the latency required for the terminal device to switch BWPs. For example, the duration of the first timer can be greater than or equal to a first time interval between the time domain position for sending the first control information and the time domain position for sending the second control information. Exemplarily, the first time interval can be determined based on the time required for the terminal device to switch BWPs and / or the preparation time required for the terminal device to listen for control information.

[0135] As mentioned earlier, the duration of the BWP inactivity timer in related technologies is relatively long. If the terminal device misses the first control information, a long handover delay will occur when switching to the default downlink BWP based on this timer, and it may even lead to a loss of synchronization. In this embodiment, by setting the duration of the first timer to be shorter than the duration of the BWP inactivity timer in related technologies, the handover delay can be reduced, and the problem of the terminal device losing synchronization due to a long period of not receiving control information can be avoided, thereby improving the communication quality of the terminal device.

[0136] The information related to the first timer can be configured by the network device or predefined by the protocol; this application embodiment does not specifically limit this. In some implementations, the information related to the first timer can be configured by the network device through first higher-layer signaling. For example, the information related to the first timer can be configured by the network device in RRC signaling.

[0137] In some implementations, the network device can send a second signaling message to the terminal device; correspondingly, the terminal device can receive the second signaling message sent by the network device. The second signaling message is used to activate or deactivate the first timer.

[0138] In some implementations, the second signaling can also be used to indicate one or more of the following information:

[0139] The identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

[0140] In some implementations, the second signaling can be used to indicate one or more configuration values ​​in the first configuration information associated with the first timer; in other words, the second signaling can be used to activate or deactivate one or more configuration values ​​in the first configuration information associated with the first timer. For example, the configuration values ​​in the first configuration information may include one or more of the following: the identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

[0141] The first configuration information can be configured by the network device or predefined by the protocol; this application embodiment does not specifically limit this. In some implementations, the first configuration information can be configured by the network device through first higher-layer signaling. For example, the first configuration information can be configured by the network device in RRC signaling.

[0142] There are various ways to indicate information in the second signaling. For example, the information in the second signaling can be indicated based on a bitmap. Alternatively, multiple bits can be used to directly indicate the information in the second signaling. The following section uses the identification information of the first timer as an example to illustrate several ways to indicate the second signaling. It should be understood that the methods for indicating other information associated with the first timer in the second signaling can refer to the following indication methods.

[0143] For example, the identification information of the first timer can be indicated by a bitmap of N1 bits in the second signaling. Exemplarily, candidate identification values ​​for the first timer can be configured in the first configuration information via signaling, and then the target identification value of the first timer in the first configuration information can be determined based on the bitmap information in the second signaling. Specifically, the network device can configure candidate identification values ​​for the first timer in the first configuration information via RRC signaling, such as {value 1, value 2, value 3}, where the first bit of the bitmap in the second signaling corresponds to value 1, and so on. Alternatively, the identification information of the first timer can be directly indicated by the N1 bits in the second signaling. Exemplarily, candidate identification values ​​for the first timer can be configured in the first configuration information via signaling, and then the target identification value of the first timer in the first configuration information can be indicated based on the N1 bits in the second signaling. Specifically, network devices can configure candidate identifier values ​​for the first timer in the first configuration information via RRC signaling, such as {value 1, value 2, value 3}, numbered from 0 in order from left to right or used as sequence numbers. The sequence number indicated by the N1 bits in the second signaling is used as the target identifier value for the first timer.

[0144] In some implementations, the second signaling can be MAC CE or DCI. That is, the first timer can be activated or deactivated via MAC CE or DCI.

[0145] Taking the activation of the first timer based on DCI as an example, the DCI can indicate the specific value of the first timer when activating it. Alternatively, when indicating relevant information (such as the identifier value or duration of the first timer), an indication field in the DCI can be used to indicate whether the first timer is activated. For example, this indication field contains 1 bit of information, where a bit value of "0" indicates that the first timer is not activated, and a bit value of "1" indicates that the first timer is activated. Alternatively, the relevant information indicated by the DCI can be configured by RRC signaling, and the DCI can indicate one of the candidate values ​​configured by RRC.

[0146] Taking the identification information of a BWP indicated by a DCI as an example, the DCI can indicate the specific ID value of the target BWP corresponding to the first timer. For example, an indication field in the DCI can be used to indicate the ID value of the target BWP. For example, this indication field can contain N bits of information to indicate different BWP ID values, where N is a positive integer greater than or equal to 1. Alternatively, the DCI can indicate the BWP PID value by pre-configuring a set of candidate BWP IDs using RRC signaling, and the DCI can only indicate one value from that set of BWP IDs.

[0147] In some implementations, the terminal device can receive a third signaling sent by the network device, which is used to indicate the duration of the first timer. That is, embodiments of this application can indicate the duration of the first timer when the first timer is activated based on the second signaling, or they can send a separate third signaling to indicate the duration of the first timer. For example, the third signaling can be MAC CE or DCI.

[0148] In some implementations, the activation time of the first timer can be determined based on the first time domain position and the first time domain offset.

[0149] The aforementioned first time-domain location is related to the time-domain location where the terminal device sends the fourth signaling, which is used to indicate that the terminal device has received the second signaling. For example, the fourth signaling is a HARQ-ACK message.

[0150] In some implementations, whether a terminal device sends a fourth signaling message depends on the type of the second signaling message. For example, if the second signaling message is MAC CE, the terminal device can send a fourth signaling message to the network device.

[0151] For example, taking the second signaling as MAC CE, after the terminal device receives the MAC CE sent by the network device, it sends HARQ-ACK information to the network device to inform the network device that it has received the PUSCH carrying the MAC CE.

[0152] In some implementations, the first time-domain offset can correspond to a fixed time interval.

[0153] The first time-domain offset can be determined in several ways. For example, the first time-domain offset can be predefined by the protocol. Alternatively, the first time-domain offset can be determined by the indication of the second signaling and / or the configuration of the first higher-layer signaling.

[0154] For example, terminal devices can be used in time slots. Start the first timer, where time slot k is the time slot in which the terminal device transmits the PUCCH with fourth signaling for the PDSCH providing second signaling. μ is the subcarrier spacing configuration of the PUCCH.

[0155] For example, the activated MAC CE indicates the start time of the first timer. The MAC CE directly indicates the slot offset for the first timer's activation and the symbol position within the activated slot. Alternatively, the slot offset for the first timer's activation and the symbol position within the activated slot are configured by RRC, and the MAC CE indicates the relevant parameters configured using RRC.

[0156] For example, time slot k is the time slot in which the terminal device transmits a PUCCH with fourth signaling for the PDSCH providing second signaling. μ is the subcarrier spacing configuration of the PUCCH. The time slot offset from time slot k is configured in the MAC CE, or the time slot offset from time slot k is configured in the MAC CE. The time slot offset L. The terminal device starts the first timer at symbol S in the time slot in which the first timer is started. Where 0≤S≤13, S is an integer and the value of S is indicated in MAC CE. S is 0, which means that the first timer starts at symbol 0 in the time slot.

[0157] For example, in RRC, the time slot offset or distance time slot k can be configured. The time slot offset L is defined as follows: Time slot k is the time slot in which the terminal device transmits a PUCCH with fourth signaling for the PDSCH providing second signaling. μ is the subcarrier spacing configuration of the PUCCH. The symbol position S in the RRC that enables the first timer in this time slot is configured, where 0 ≤ S ≤ 13, and S is an integer. For example, multiple candidate time slot offset values ​​and / or symbol positions are configured in the RRC, and the time slot offset and symbol position enabled by the MACCE are indicated by the MACCE.

[0158] For example, the DCI indicates the slot offset k and symbol position S within the slot for activating the first timer. Exemplarily, the terminal device receives the DCI activating the first timer in slot n, and the terminal device starts activating the first timer starting at the S-th symbol in slot n+k. Here, k is an integer greater than or equal to 0, and k can have M candidate values. The DCI indication selects one from these M candidate values. Where 0 ≤ S ≤ 13, S is an integer, and S being 0 indicates that the first timer is activated starting at symbol 0 in slot n+k.

[0159] After the first timer is activated, it can be deactivated if one or more of the following conditions occur:

[0160] Scenario 1: If the terminal device detects the second control information before the first timer expires, the first timer will be deactivated.

[0161] Scenario 2: After the first timer expires, the terminal device listens to the second control information, and then deactivates when the first timer expires.

[0162] Scenario 3: The first timer is activated by the network device and deactivated according to the signaling sent by the network device. For example, after the network device sends activation information, the terminal device activates the first timer according to the above timing sequence, and then stops the first timer according to the deactivation information sent by the network device.

[0163] The embodiments of this application do not specifically limit the format of the first control information. The first control information can reuse the format in related technologies or it can be a newly defined format. For example, the format of the first control information can be DCI format 0_1 ​​or DCI format 1_1.

[0164] The embodiments of this application do not specifically limit the scrambling method for the first control information. The first control information can be scrambled based on scrambling methods in related technologies, or it can be scrambled using a newly defined scrambling method.

[0165] In some implementations, the first control information can be scrambled based on the radio network temporary identifier (RNTI).

[0166] For example, the first control information can be scrambled based on the C-RNTI (cell RNTI). Alternatively, the first control information can be scrambled based on a newly defined RNTI. This newly defined RNTI can be used specifically for scrambling the first control information.

[0167] The embodiments of this application do not specifically limit the format of the second control information. The second control information can reuse the format in related technologies or it can be a newly defined format. For example, the format of the second control information can be DCI format 0_1 ​​or DCI format 1_1.

[0168] The embodiments of this application do not specifically limit the scrambling method for the second control information. The second control information can be scrambled based on scrambling methods in related technologies, or it can be scrambled using a newly defined scrambling method.

[0169] In some implementations, the second control information can be scrambled based on the Radio Network Temporary Identifier (RNTI).

[0170] For example, the second control information can be scrambled based on the C-RNTI (cell RNTI). Alternatively, the second control information can be scrambled based on a newly defined RNTI. This newly defined RNTI can be specifically used for scrambling the second control information.

[0171] There are several ways to instruct the terminal device to perform BWP switching based on the first control information. Several instruction methods are illustrated below.

[0172] For example, the first control information can indicate the identification information of the BWP based on an information field (such as a bandwidth part indicator). For instance, if the BWP ID indicated by the information field of the first control information is different from the BWP PID currently used by the terminal device, the terminal device switches to the BWP indicated by that information field; or, if the BWP ID indicated by that information field is the same as the BWP ID currently used by the terminal device, the terminal device does not switch BWPs.

[0173] For example, the first control information may include an information field indicating whether to switch BWPs. If the information field indicates that BWPs should be switched, the terminal device switches to the new BWP according to the BWP ID indicated in the bandwidth part indicator information field.

[0174] For example, the first control information can directly indicate one or more of the following:

[0175] The value (or duration) of the first timer. For example, the first control information may indicate one of the candidate values ​​of the first timer configured by the higher-level signaling, or it may directly indicate the value of the first timer.

[0176] The activation information of the first timer. For example, the activation of the first timer can be indicated based on 1 bit of information in the first control information.

[0177] The target BWP's BWP ID information, i.e., the new BWP that the terminal device switches to. Upon receiving the aforementioned instruction information in the first control information, the terminal device can activate the first timer and switch the BWP according to the aforementioned timing sequence.

[0178] It should be understood that the BWP involved in the embodiments of this application can be the definition of BWP in related technologies, or it can be a BWP configured on different carriers in a single cell with multiple carriers, or a BWP can be an operating bandwidth configured by a network device.

[0179] Furthermore, the BWP mentioned in the embodiments of this application can be replaced with related terms of other frequency domain units. For example, "BWP" can be replaced with "carrier bandwidth", "operating frequency band", or "channel in the frequency domain", etc.

[0180] The embodiments of this application are described in more detail below with specific examples. It should be noted that the examples below are merely to help those skilled in the art understand the embodiments of this application, and are not intended to limit the embodiments of this application to the specific numerical values ​​or scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or variations based on the examples given below, and such modifications or variations also fall within the scope of the embodiments of this application.

[0181] Example 1

[0182] like Figure 4 As shown, the communication method in this embodiment includes steps S410 to S440. The first BWP is the BWP currently in operation of the terminal device. The first BWP can be any type of BWP, including the default downlink BWP, the initial downlink BWP, or a proprietary BWP of the terminal device.

[0183] In step S410, the terminal device receives a second signaling message sent by the network device. The second signaling message is used to activate the first timer.

[0184] In some implementations, the second signaling can be MAC CE or DCI. That is, the first timer can be activated or deactivated via MAC CE or DCI.

[0185] In some implementations, the second signaling can also be used to indicate one or more of the following information:

[0186] The identification information of the first timer, the duration of the first timer, and the identification information of the first BWP associated with the first timer.

[0187] In step S420, the terminal device determines the first missed DCI based on the first timer. The first DCI is used to instruct the terminal device to perform a BWP handover.

[0188] In some implementations, the terminal device can determine that the network device is about to send the first control information based on the activation information of the first timer.

[0189] In some implementations, step S420 may include: in response to a first timer timeout, the terminal device determines that the first DCI was missed. After the first timer is enabled, the terminal device can listen for the first DCI in the currently operating BWP; if the first DCI is not received within the duration of the first timer, the terminal device determines that the first DCI was missed.

[0190] In step S430, in response to the first timer timeout, the terminal device listens for the second DCI on the first BWP.

[0191] In some implementations, Figure 4 The communication method may further include: the terminal device sending a first signaling message to the network device, the first signaling message being used to indicate that the terminal device missed a first DCI.

[0192] The second DCI can be the same as the first DCI, meaning the second DCI is also used to instruct the terminal device to perform BWP handover. Alternatively, the second DCI can be different from the first DCI, meaning the second DCI is not used to instruct the terminal device to perform BWP handover. For example, the second DCI can instruct the terminal device on uplink and downlink scheduling information on the currently active BWP (or a newly activated BWP).

[0193] In some implementations, the first BWP can be the BWP currently in use by the terminal device. That is, after determining that the first DCI has been missed, the terminal device may not perform a BWP switch (such as switching to the default downlink BWP), but instead continue to listen for subsequent second DCIs sent by the network device on its currently in use BWP.

[0194] There are several ways for a terminal device to listen to the second DCI on the first BWP. In some implementations, the terminal device can listen to the second DCI based on a first control resource set in the first BWP; and / or, the terminal device can listen to the second control information based on a first common listening timing associated with the first BWP. For a detailed introduction to the first control resource set and the first common listening timing, please refer to the preceding text, which will not be repeated here.

[0195] In step S440, the terminal device performs BWP switching or is scheduled on the first BWP based on the received second DCI.

[0196] Example 2

[0197] like Figure 5 As shown, the communication method in this embodiment includes steps S510 to S540. The first BWP, second BWP, and third BWP are multiple BWPs allocated by the network device to the terminal device. The first BWP is the BWP currently in operation by the terminal device, and can be any type of BWP, including the default downlink BWP, the initial downlink BWP, or a proprietary BWP of the terminal device.

[0198] In step S510, the terminal device receives a second signaling message sent by the network device. The second signaling message is used to activate the first timer.

[0199] In some implementations, the second signaling can be MAC CE or DCI. That is, the first timer can be activated or deactivated via MAC CE or DCI.

[0200] In some implementations, the second signaling can also be used to indicate one or more of the following information:

[0201] The identification information of the first timer, the duration of the first timer, and the identification information of the first BWP associated with the first timer.

[0202] In step S520, the terminal device determines the first missed DCI based on the first timer. The first DCI is used to instruct the terminal device to perform a BWP handover.

[0203] In some implementations, the terminal device can determine that the network device is about to send the first control information based on the activation information of the first timer.

[0204] In some implementations, step S520 may include: in response to a first timer timeout, the terminal device determines that the first DCI was missed. After the first timer is enabled, the terminal device may listen for the first DCI in the currently operating BWP; if the first DCI is not received within the duration of the first timer, the terminal device determines that the first DCI was missed.

[0205] In step S530, in response to the first timer timeout, the terminal device listens for the second DCI on the first BWP, the second BWP, and the third BWP.

[0206] In some implementations, Figure 5 The communication method may further include: the terminal device sending a first signaling message to the network device, the first signaling message being used to indicate that the terminal device missed a first DCI.

[0207] The second DCI can be the same as the first DCI, meaning the second DCI is also used to instruct the terminal device to perform BWP handover. Alternatively, the second DCI can be different from the first DCI, meaning the second DCI is not used to instruct the terminal device to perform BWP handover. For example, the second DCI can instruct the terminal device on uplink and downlink scheduling information on the currently active BWP (or a newly activated BWP).

[0208] There are several ways for a terminal device to listen for the second DCI on a BWP. In some implementations, the terminal device can listen for the second DCI based on a first control resource set in the BWP; and / or, the terminal device can listen for the second DCI based on a first common listening opportunity associated with the BWP. Here, BWP refers to one or more of the first BWP, second BWP, and third BWP. For a detailed introduction to the first control resource set and the first common listening opportunity, please refer to the previous text, which will not be repeated here.

[0209] In step S540, the terminal device performs BWP switching or is scheduled on the third BWP based on the received second DCI.

[0210] The above text combined Figures 1 to 5 The method embodiments of this application are described in detail below, in conjunction with... Figures 6 to 8 The present application provides a detailed description of the apparatus embodiments. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be found in the foregoing method embodiments.

[0211] Figure 6 This is a schematic diagram of a communication device according to an embodiment of this application. Figure 6 The communication device 600 shown is a terminal device, including:

[0212] The first determining module 610 is used to determine whether the first control information is missed based on the first timer. The first control information is used to instruct the terminal device to perform a bandwidth portion BWP switch.

[0213] In some implementations, the first determining module 610 is further configured to:

[0214] In response to the first timer expiring, it is determined that the first control information was missed.

[0215] In some implementations, the communication device 600 further includes:

[0216] The monitoring module is configured to monitor the second control information on the first BWP if the terminal device determines that the first control information has been missed; and / or

[0217] The first sending module is configured to send a first signaling message to the network device if the terminal device determines that the first control information has been missed. The first signaling message is used to indicate that the terminal device has missed the first control information.

[0218] In some implementations, the first BWP is the BWP currently in operation by the terminal device.

[0219] In some implementations, the first BWP is any one of one or more BWPs configured by the network device for the terminal device.

[0220] In some implementations, the second control information is the same as the first control information, or the second control information is different from the first control information.

[0221] In some implementations, the listening module is also used for:

[0222] Listening to the second control information based on the first control resource set in the first BWP; and / or listening to the second control information based on the first common listening timing associated with the first BWP.

[0223] In some implementations, the first public listening event may or may not be associated with the first control resource set.

[0224] In some implementations, the first control resource set is a public control resource set.

[0225] In some implementations, the configuration information of the first control resource set is determined based on cell-level configuration information and / or the proprietary configuration information of the first BWP.

[0226] In some implementations, the first control resource set is a control resource set specific to the terminal device.

[0227] In some implementations, the first common listening time is associated with the first control resource set, and the first common listening time corresponds to a portion of the resources in the first control resource set.

[0228] In some implementations, the first public listening opportunity is not associated with the first control resource set, and the configuration information of the first public listening opportunity is determined based on the cell-level configuration information.

[0229] In some implementations, the configuration information for the first public listening opportunity is determined based on cell-level configuration information and / or the proprietary configuration information of the first BWP.

[0230] In some implementations, the communication device 600 further includes:

[0231] The first receiving module is used to receive a second signaling sent by a network device, the second signaling being used to activate or deactivate the first timer.

[0232] In some implementations, the second signaling is also used to indicate one or more of the following:

[0233] The identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

[0234] In some implementations, the second signaling is MAC CE or DCI.

[0235] In some implementations, the communication device 600 further includes:

[0236] The second receiving module is used to receive a third signaling sent by the network device, the third signaling being used to indicate the duration of the first timer.

[0237] In some implementations, the first timer includes a timer dedicated to BWP switching and / or a BWP inactivity timer.

[0238] In some implementations, the first timer includes a proprietary timer of the BWP and / or a timer configured at the cell level.

[0239] In some implementations, the duration of the first timer is less than or equal to the duration of the BWP inactivity timer configured at the cell level.

[0240] Figure 7 This is a schematic diagram of a communication device according to another embodiment of this application. Figure 7 The communication device 700 shown is a network device, including:

[0241] The first sending module 710 is used to send first control information to the terminal device, the first control information being used to instruct the terminal device to perform a bandwidth portion (BWP) switch.

[0242] In some implementations, the communication device 700 further includes:

[0243] The first receiving module is configured to receive a first signaling sent by the terminal device, wherein the first signaling is used to indicate that the terminal device has missed detecting the first control information.

[0244] In some implementations, the communication device 700 further includes:

[0245] The second sending module is configured to send second control information to the terminal device via the first BWP if the network device determines that the terminal device has missed detecting the first control information.

[0246] In some implementations, the first BWP is the BWP currently in operation by the terminal device.

[0247] In some implementations, the first BWP is any one of one or more BWPs configured by the network device for the terminal device.

[0248] In some implementations, the second control information is the same as the first control information, or the second control information is different from the first control information.

[0249] In some implementations, the second sending module is used for:

[0250] The network device sends the second control information based on the first control resource set in the first BWP; and / or, the network device sends the second control information based on the first public listening opportunity associated with the first BWP.

[0251] In some implementations, the first public listening event may or may not be associated with the first control resource set.

[0252] In some implementations, the first control resource set is a public control resource set.

[0253] In some implementations, the configuration information of the first control resource set is determined based on cell-level configuration information and / or the proprietary configuration information of the first BWP.

[0254] In some implementations, the first control resource set is a control resource set specific to the terminal device.

[0255] In some implementations, the first common listening time is associated with the first control resource set, and the first common listening time corresponds to a portion of the resources in the first control resource set.

[0256] In some implementations, the first public listening opportunity is not associated with the first control resource set, and the configuration information of the first public listening opportunity is determined based on the cell-level configuration information.

[0257] In some implementations, the configuration information for the first public listening opportunity is determined based on cell-level configuration information and / or the proprietary configuration information of the first BWP.

[0258] In some implementations, the communication device 700 further includes:

[0259] The third sending module is used to send a second signaling to the terminal device. The second signaling is used to activate or deactivate a first timer. The first timer is used to determine whether the terminal device has missed detecting the first control information.

[0260] In some implementations, the second signaling is also used to indicate one or more of the following:

[0261] The identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

[0262] In some implementations, the second signaling is MAC CE or DCI.

[0263] In some implementations, the communication device 700 further includes:

[0264] The fourth sending module is used to send a third signaling to the terminal device, the third signaling being used to indicate the duration of the first timer.

[0265] In some implementations, the first timer includes a timer dedicated to BWP switching and / or a BWP inactivity timer.

[0266] In some implementations, the first timer includes a proprietary timer of the BWP and / or a timer configured at the cell level.

[0267] In some implementations, the duration of the first timer is less than or equal to the duration of the BWP inactivity timer configured at the cell level.

[0268] Figure 8 This is a schematic structural diagram of the device according to an embodiment of this application. Figure 8 The dashed lines indicate that the unit or module is optional. The device 800 can be used to implement the methods described in the above method embodiments. The device 800 can be a chip, a terminal device, or a network device.

[0269] The apparatus 800 may include one or more processors 810. The processor 810 may support the apparatus 800 in implementing the methods described in the preceding method embodiments. The processor 810 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor 810 may also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0270] The apparatus 800 may further include one or more memories 820. The memories 820 store a program that can be executed by the processor 810, causing the processor 810 to perform the methods described in the preceding method embodiments. The memories 820 may be independent of the processor 810 or integrated within the processor 810.

[0271] The device 800 may also include a transceiver 830. The processor 810 can communicate with other devices or chips via the transceiver 830. For example, the processor 810 can send and receive data with other devices or chips via the transceiver 830.

[0272] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to the communication device provided in this application, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0273] This application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the communication device provided in this application embodiment, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0274] This application also provides a computer program. This computer program can be applied to the terminal device or network device provided in this application, and the computer program causes the computer to execute the methods performed by the communication device in various embodiments of this application.

[0275] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0276] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0277] The “configuration” in this application embodiment may include configuration via at least one of system messages, radio resource control (RRC) signaling, and media access control control element (MAC CE).

[0278] In some embodiments of this application, "predefined" or "preset" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, "predefined" can refer to what is defined in the protocol.

[0279] In some embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as LTE protocols, NR protocols, and related protocols applied in future communication systems. This application does not limit the scope of the term.

[0280] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0281] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0282] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0283] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0284] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0285] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0286] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: The terminal device determines whether it has missed detecting the first control information based on the first timer. The first control information is used to instruct the terminal device to perform a bandwidth portion BWP switch.

2. The method according to claim 1, characterized in that, The terminal device determines whether the first control information has been missed based on the first timer, including: In response to the first timer expiring, the terminal device determines that the first control information was missed.

3. The method according to claim 1 or 2, characterized in that, The method further includes: If the terminal device determines that the first control information has been missed, the terminal device listens for the second control information on the first BWP; and / or If the terminal device determines that it has missed detecting the first control information, the terminal device sends a first signaling message to the network device, the first signaling message being used to indicate that the terminal device has missed detecting the first control information.

4. The method according to claim 3, characterized in that, The first BWP is the BWP currently in operation of the terminal device.

5. The method according to claim 3, characterized in that, The first BWP is any one of one or more BWPs configured by the network device for the terminal device.

6. The method according to any one of claims 3 to 5, characterized in that, The second control information is the same as the first control information, or the second control information is different from the first control information.

7. The method according to any one of claims 3 to 6, characterized in that, The terminal device listens to the second control information on the first BWP, including: The terminal device listens to the second control information based on the first control resource set in the first BWP; and / or, the terminal device listens to the second control information based on the first common listening opportunity associated with the first BWP.

8. The method according to claim 7, characterized in that, The first public listening time may or may not be associated with the first control resource set.

9. The method according to claim 7 or 8, characterized in that, The first control resource set is a public control resource set.

10. The method according to claim 9, characterized in that, The configuration information of the first control resource set is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

11. The method according to claim 7 or 8, characterized in that, The first control resource set is a control resource set specific to the terminal device.

12. The method according to claim 11, characterized in that, The first public listening time is associated with the first control resource set, and the first public listening time corresponds to a portion of the resources in the first control resource set.

13. The method according to claim 11, characterized in that, The first public listening opportunity is not associated with the first control resource set, and the configuration information of the first public listening opportunity is determined based on the cell-level configuration information.

14. The method according to any one of claims 7 to 13, characterized in that, The configuration information for the first public listening opportunity is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

15. The method according to any one of claims 1 to 14, characterized in that, The method further includes: The terminal device receives a second signaling message sent by the network device, the second signaling message being used to activate or deactivate the first timer.

16. The method according to claim 15, characterized in that, The second signaling is also used to instruct one or more of the following: The identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

17. The method according to claim 15 or 16, characterized in that, The second signaling is MAC CE or DCI.

18. The method according to any one of claims 15 to 17, characterized in that, The method further includes: The terminal device receives a third signaling sent by the network device, the third signaling being used to indicate the duration of the first timer.

19. The method according to any one of claims 1 to 18, characterized in that, The first timer includes a timer dedicated to BWP switching and / or a BWP inactivity timer.

20. The method according to any one of claims 1 to 19, characterized in that, The first timer includes a proprietary timer of the BWP and / or a timer configured at the cell level.

21. The method according to any one of claims 1 to 20, characterized in that, The duration of the first timer is less than or equal to the duration of the BWP inactivity timer configured at the cell level.

22. A communication method, characterized in that, include: The network device sends first control information to the terminal device, the first control information being used to instruct the terminal device to perform a bandwidth portion (BWP) switch.

23. The method according to claim 22, characterized in that, The method further includes: The network device receives a first signaling message sent by the terminal device, the first signaling message being used to indicate that the terminal device has missed detecting the first control information.

24. The method according to claim 22 or 23, characterized in that, The method further includes: If the network device determines that the terminal device has missed detecting the first control information, the network device sends the second control information to the terminal device in the first BWP.

25. The method according to claim 24, characterized in that, The first BWP is the BWP currently in operation of the terminal device.

26. The method according to claim 24, characterized in that, The first BWP is any one of one or more BWPs configured by the network device for the terminal device.

27. The method according to any one of claims 24 to 26, characterized in that, The second control information is the same as the first control information, or the second control information is different from the first control information.

28. The method according to any one of claims 24 to 27, characterized in that, The network device sends the second control information in the first BWP, including: The network device sends the second control information based on the first control resource set in the first BWP; and / or, the network device sends the second control information based on the first public listening opportunity associated with the first BWP.

29. The method according to claim 28, characterized in that, The first public listening time may or may not be associated with the first control resource set.

30. The method according to claim 28 or 29, characterized in that, The first control resource set is a public control resource set.

31. The method according to claim 30, characterized in that, The configuration information of the first control resource set is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

32. The method according to claim 28 or 29, characterized in that, The first control resource set is a control resource set specific to the terminal device.

33. The method according to claim 32, characterized in that, The first public listening time is associated with the first control resource set, and the first public listening time corresponds to a portion of the resources in the first control resource set.

34. The method according to claim 32, characterized in that, The first public listening opportunity is not associated with the first control resource set, and the configuration information of the first public listening opportunity is determined based on the cell-level configuration information.

35. The method according to any one of claims 28 to 34, characterized in that, The configuration information for the first public listening opportunity is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

36. The method according to any one of claims 22 to 35, characterized in that, The method further includes: The network device sends a second signaling message to the terminal device. The second signaling message is used to activate or deactivate a first timer. The first timer is used to determine whether the terminal device has missed detecting the first control information.

37. The method according to claim 36, characterized in that, The second signaling is also used to instruct one or more of the following: The identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

38. The method according to claim 36 or 37, characterized in that, The second signaling is MAC CE or DCI.

39. The method according to any one of claims 36 to 38, characterized in that, The method further includes: The network device sends a third signaling message to the terminal device, the third signaling message being used to indicate the duration of the first timer.

40. The method according to any one of claims 36 to 39, characterized in that, The first timer includes a timer dedicated to BWP switching and / or a BWP inactivity timer.

41. The method according to any one of claims 36 to 40, characterized in that, The first timer includes a proprietary timer of the BWP and / or a timer configured at the cell level.

42. The method according to any one of claims 36 to 41, characterized in that, The duration of the first timer is less than or equal to the duration of the BWP inactivity timer configured at the cell level.

43. A communication device, characterized in that, The communication device is a terminal device, including: The first determining module is used to determine whether the first control information is missed based on the first timer. The first control information is used to instruct the terminal device to perform a bandwidth portion BWP switch.

44. The communication device according to claim 43, characterized in that, The first determining module is further configured to: In response to the first timer expiring, it is determined that the first control information was missed.

45. The communication device according to claim 43 or 44, characterized in that, The communication device also includes: The monitoring module is configured to monitor the second control information on the first BWP if the terminal device determines that the first control information has been missed; and / or The first sending module is configured to send a first signaling message to the network device if the terminal device determines that the first control information has been missed. The first signaling message is used to indicate that the terminal device has missed the first control information.

46. ​​The communication device according to claim 45, characterized in that, The first BWP is the BWP currently in operation of the terminal device.

47. The communication device according to claim 45, characterized in that, The first BWP is any one of one or more BWPs configured by the network device for the terminal device.

48. The communication device according to any one of claims 45 to 47, characterized in that, The second control information is the same as the first control information, or the second control information is different from the first control information.

49. The communication device according to any one of claims 45 to 48, characterized in that, The monitoring module is also used for: Listening to the second control information based on the first control resource set in the first BWP; and / or listening to the second control information based on the first common listening timing associated with the first BWP.

50. The communication device according to claim 49, characterized in that, The first public listening time may or may not be associated with the first control resource set.

51. The communication device according to claim 49 or 50, characterized in that, The first control resource set is a public control resource set.

52. The communication device according to claim 51, characterized in that, The configuration information of the first control resource set is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

53. The communication device according to claim 49 or 50, characterized in that, The first control resource set is a control resource set specific to the terminal device.

54. The communication device according to claim 53, characterized in that, The first public listening time is associated with the first control resource set, and the first public listening time corresponds to a portion of the resources in the first control resource set.

55. The communication device according to claim 53, characterized in that, The first public listening opportunity is not associated with the first control resource set, and the configuration information of the first public listening opportunity is determined based on the cell-level configuration information.

56. The communication device according to any one of claims 49 to 55, characterized in that, The configuration information for the first public listening opportunity is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

57. The communication device according to any one of claims 43 to 56, characterized in that, The communication device also includes: The first receiving module is used to receive a second signaling sent by a network device, the second signaling being used to activate or deactivate the first timer.

58. The communication device according to claim 57, characterized in that, The second signaling is also used to instruct one or more of the following: The identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

59. The communication device according to claim 57 or 58, characterized in that, The second signaling is MAC CE or DCI.

60. The communication device according to any one of claims 57 to 59, characterized in that, The communication device also includes: The second receiving module is used to receive a third signaling sent by the network device, the third signaling being used to indicate the duration of the first timer.

61. The communication device according to any one of claims 43 to 60, characterized in that, The first timer includes a timer dedicated to BWP switching and / or a BWP inactivity timer.

62. The communication device according to any one of claims 43 to 61, characterized in that, The first timer includes a proprietary timer of the BWP and / or a timer configured at the cell level.

63. The communication device according to any one of claims 43 to 62, characterized in that, The duration of the first timer is less than or equal to the duration of the BWP inactivity timer configured at the cell level.

64. A communication device, characterized in that, The communication device is a network device, including: The first sending module is used to send first control information to the terminal device, the first control information being used to instruct the terminal device to perform a bandwidth portion (BWP) switch.

65. The communication device according to claim 64, characterized in that, The communication device also includes: The first receiving module is configured to receive a first signaling sent by the terminal device, wherein the first signaling is used to indicate that the terminal device has missed detecting the first control information.

66. The communication device according to claim 64 or 65, characterized in that, The communication device also includes: The second sending module is configured to send second control information to the terminal device via the first BWP if the network device determines that the terminal device has missed detecting the first control information.

67. The communication device according to claim 66, characterized in that, The first BWP is the BWP currently in operation of the terminal device.

68. The communication device according to claim 66, characterized in that, The first BWP is any one of one or more BWPs configured by the network device for the terminal device.

69. The communication device according to any one of claims 66 to 68, characterized in that, The second control information is the same as the first control information, or the second control information is different from the first control information.

70. The communication device according to any one of claims 66 to 69, characterized in that, The second sending module is used for: The network device sends the second control information based on the first control resource set in the first BWP; and / or, the network device sends the second control information based on the first public listening opportunity associated with the first BWP.

71. The communication device according to claim 70, characterized in that, The first public listening time may or may not be associated with the first control resource set.

72. The communication device according to claim 70 or 71, characterized in that, The first control resource set is a public control resource set.

73. The communication device according to claim 72, characterized in that, The configuration information of the first control resource set is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

74. The communication device according to claim 70 or 71, characterized in that, The first control resource set is a control resource set specific to the terminal device.

75. The communication device according to claim 74, characterized in that, The first public listening time is associated with the first control resource set, and the first public listening time corresponds to a portion of the resources in the first control resource set.

76. The communication device according to claim 74, characterized in that, The first public listening opportunity is not associated with the first control resource set, and the configuration information of the first public listening opportunity is determined based on the cell-level configuration information.

77. The communication device according to any one of claims 70 to 76, characterized in that, The configuration information for the first public listening opportunity is determined based on the cell-level configuration information and / or the proprietary configuration information of the first BWP.

78. The communication device according to any one of claims 64 to 77, characterized in that, The communication device also includes: The third sending module is used to send a second signaling to the terminal device. The second signaling is used to activate or deactivate a first timer. The first timer is used to determine whether the terminal device has missed detecting the first control information.

79. The communication device according to claim 78, characterized in that, The second signaling is also used to instruct one or more of the following: The identification information of the first timer, the duration of the first timer, and the identification information of the BWP associated with the first timer.

80. The communication device according to claim 78 or 79, characterized in that, The second signaling is MAC CE or DCI.

81. The communication device according to any one of claims 78 to 80, characterized in that, The communication device also includes: The fourth sending module is used to send a third signaling to the terminal device, the third signaling being used to indicate the duration of the first timer.

82. The communication device according to any one of claims 78 to 81, characterized in that, The first timer includes a timer dedicated to BWP switching and / or a BWP inactivity timer.

83. The communication device according to any one of claims 78 to 82, characterized in that, The first timer includes a proprietary timer of the BWP and / or a timer configured at the cell level.

84. The communication device according to any one of claims 78 to 83, characterized in that, The duration of the first timer is less than or equal to the duration of the BWP inactivity timer configured at the cell level.

85. A communication device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory is used to store a program, and the processor is used to invoke the program in the memory to receive or send information through the transceiver, thereby causing the communication device to perform the method as described in any one of claims 1-21.

86. A communication device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory is used to store a program, and the processor is used to invoke the program in the memory to receive or send information through the transceiver, thereby causing the communication device to perform the method as described in any one of claims 22-42.

87. An apparatus, characterized in that, Includes a processor for calling a program from memory, causing the device to perform the method as claimed in any one of claims 1-21 or 22-42.

88. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as claimed in any one of claims 1-21 or 22-42.

89. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as claimed in any one of claims 1-21 or 22-42.

90. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as claimed in any one of claims 1-21 or 22-42.

91. A computer program, characterized in that, The computer program causes the computer to perform the method as claimed in any one of claims 1-21 or 22-42.

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